diff --git a/AiguaProcesor.cpp b/AiguaProcesor.cpp deleted file mode 100644 index 5a1ce19..0000000 --- a/AiguaProcesor.cpp +++ /dev/null @@ -1,47 +0,0 @@ -#include "AiguaProcesor.h" - -AiguaProcesor::AiguaProcesor(DrawManager *p_drawManager, int p_fase) -{ - drawManager = p_drawManager; - fase = p_fase; - - grafic = drawManager->LoadFont("aigua.gif"); - frame1 = 0; - frame2 = 5; -} - -AiguaProcesor::~AiguaProcesor(void) -{ - SDL_FreeSurface(grafic); -} - -void AiguaProcesor::Pintar() { - int frames1[10] = {0,1,2,1,0,3,4,5,4,3}; - int frames2[10] = {6,7,8,7,6,9,10,11,10,9}; - int *frames; - if ((fase+1) % 5 == 0) { - frames = frames2; - } else { - frames = frames1; - } - - SDL_Rect clip; - clip.y = 0; - clip.w = 16; - clip.h = 15; - - for (int i=0;i<10;i++) { - clip.x = frames[frame1]*16; - drawManager->Blit(i*32, 150, grafic, &clip); - clip.x = frames[frame2]*16; - drawManager->Blit(16+i*32, 150, grafic, &clip); - } -} - -void AiguaProcesor::Procesar() { - frame1++; - frame2++; - - if (frame1 == 10) frame1 = 0; - if (frame2 == 10) frame2 = 0; -} \ No newline at end of file diff --git a/AiguaProcesor.h b/AiguaProcesor.h deleted file mode 100644 index c2113bf..0000000 --- a/AiguaProcesor.h +++ /dev/null @@ -1,20 +0,0 @@ -#pragma once -#include "DrawManager.h" - -class AiguaProcesor -{ -public: - AiguaProcesor(DrawManager *p_drawManager, int p_fase); - ~AiguaProcesor(void); - - void Pintar(); - void Procesar(); - -private: - DrawManager *drawManager; - - SDL_Surface *grafic; - int frame1; - int frame2; - int fase; -}; diff --git a/AppController.cpp b/AppController.cpp deleted file mode 100644 index 80bf757..0000000 --- a/AppController.cpp +++ /dev/null @@ -1,95 +0,0 @@ -#include -#include "AppController.h" -#include "SequenceController.h" -#include "MenuController.h" -#include "PasswordController.h" -#include "PrefaseController.h" -#include "GameController.h" -#include "PostfaseController.h" -#include "MortController.h" -#include "const.h" - -AppController::AppController(int pMode) -{ - gameInfo = new GameInfo(pMode); -} - -AppController::~AppController(void) -{ -} - -bool AppController::Init(void) -{ - if( SDL_Init( SDL_INIT_EVERYTHING ) == -1 ) { return false; } - - drawManager = new DrawManager(gameInfo->modeGrafic); - inputManager = new InputManager(gameInfo); - - if ( !drawManager->Init() ) { return false; } - music_init(); - - return true; -} - -void AppController::Go() -{ - if (!Init()) gameInfo->estado = ESTADO_SALIR; - - while ( gameInfo->estado != ESTADO_SALIR ) { - switch ( gameInfo->estado ) { - case ESTADO_SEQUENCIA: - SequenceController *sequenceController; - sequenceController = new SequenceController(drawManager, inputManager); - sequenceController->Go(gameInfo); - delete sequenceController; - break; - case ESTADO_MENU: - MenuController *menuController; - menuController = new MenuController(drawManager, inputManager); - menuController->Go(gameInfo); - delete menuController; - break; - case ESTADO_PASSWORD: - PasswordController *passwordController; - passwordController = new PasswordController(drawManager, inputManager); - passwordController->Go(gameInfo); - delete passwordController; - break; - case ESTADO_PREFASE: - PrefaseController *prefaseController; - prefaseController = new PrefaseController(drawManager, inputManager); - prefaseController->Go(gameInfo); - delete prefaseController; - break; - case ESTADO_JUEGO: - GameController *gameController; - gameController = new GameController(drawManager, inputManager); - gameController->Go(gameInfo); - delete gameController; - break; - case ESTADO_POSTFASE: - PostfaseController *postfaseController; - postfaseController = new PostfaseController(drawManager, inputManager); - postfaseController->Go(gameInfo); - delete postfaseController; - break; - case ESTADO_MORT: - MortController *mortController; - mortController = new MortController(drawManager, inputManager); - mortController->Go(gameInfo); - delete mortController; - break; - } - } - - Finalize(); -} - -void AppController::Finalize(void) -{ - delete drawManager; - delete inputManager; - delete gameInfo; - - SDL_Quit(); -} \ No newline at end of file diff --git a/AppController.h b/AppController.h deleted file mode 100644 index 720ce14..0000000 --- a/AppController.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once -#include "SDL2/SDL.h" -#include "DrawManager.h" -#include "InputManager.h" -#include "MusicManager.h" -#include "GameInfo.h" - -class AppController -{ -public: - AppController(int pMode); - ~AppController(void); - - void Go(); - -private: - bool Init(void); - void Finalize(void); - - DrawManager *drawManager; - InputManager *inputManager; - GameInfo *gameInfo; - -}; diff --git a/ArounderProcesor.cpp b/ArounderProcesor.cpp deleted file mode 100644 index 38f2c76..0000000 --- a/ArounderProcesor.cpp +++ /dev/null @@ -1,855 +0,0 @@ -#include "ArounderProcesor.h" - -ArounderProcesor::ArounderProcesor(DrawManager *pDrawManager, MarcadorProcesor *pMarcadorProcesor, SDL_Surface *pSprites, SDL_Surface *pMapa, int pxInicial, int pyInicial, int pxFinal, int pyFinal ) -{ - drawManager = pDrawManager; - marcadorProcesor = pMarcadorProcesor; - sprites = pSprites; - mapa = pMapa; - pixels = (Uint32 *)mapa->pixels; - explosio = drawManager->LoadMask("explosio.gif"); - - xInicial = pxInicial; - yInicial = pyInicial; - xFinal = pxFinal; - yFinal = pyFinal; - - X = xInicial; - Y = yInicial; - O = marcadorProcesor->orientacioInicial; - frame = 0; - frameX = 0; - frameY = 0; - altura = 0; - - accio = ACCIO_CAMINAR; - prevista = ACCIO_CAMINAR; - - clip.w = 8; - clip.h = 8; - - siguiente = NULL; - anterior = NULL; - - colorEscalo = SDL_MapRGB( mapa->format, 60, 0, 60 ); - colorCorda = SDL_MapRGB( mapa->format, 255, 251, 194 ); -} - -ArounderProcesor::~ArounderProcesor(void) -{ - if (anterior != NULL) anterior->siguiente = siguiente; - if (siguiente != NULL) siguiente->anterior = anterior; - - SDL_FreeSurface(explosio); -} - -ArounderProcesor *ArounderProcesor::Afegir() { - if (siguiente != NULL) { - return siguiente->Afegir(); - } else { - siguiente = new ArounderProcesor(drawManager, marcadorProcesor, sprites, mapa, xInicial, yInicial, xFinal, yFinal); - siguiente->anterior = this; - return siguiente; - } -} - -void ArounderProcesor::Pintar() { - clip.y = frameY; - clip.x = frameX*8; - drawManager->Blit(X, Y, sprites, &clip); - - if (siguiente != NULL) siguiente->Pintar(); -} - -ArounderProcesor *ArounderProcesor::Seleccionar(int mouseX, int mouseY) { - if (X <= mouseX && (X+8) >= mouseX && Y <= mouseY && (Y+8) >= mouseY) { - return this; - } else { - if (siguiente != NULL) { - return siguiente->Seleccionar(mouseX, mouseY); - } else { - return NULL; - } - } -} - -void ArounderProcesor::Procesar() { - - switch(accio) { - case ACCIO_CAMINAR: - procesarCaminar(); - break; - case ACCIO_CAURE: - procesarCaure(); - break; - case ACCIO_CAVAR: - procesarCavar(); - break; - case ACCIO_ESCALAR: - procesarEscalar(); - break; - case ACCIO_PERFORAR: - procesarPerforar(); - break; - case ACCIO_ESCALERA: - procesarEscalera(); - break; - case ACCIO_PASARELA: - procesarPasarela(); - break; - case ACCIO_CORDA: - procesarCorda(); - break; - case ACCIO_PUJARCORDA: - procesarPujarCorda(); - break; - case ACCIO_BAIXARCORDA: - procesarBaixarCorda(); - break; - case ACCIO_SUICIDI: - procesarSuicidi(); - break; - } - - if (X == xFinal && Y == yFinal) initArrivat(); - - if (siguiente != NULL) siguiente->Procesar(); -} - -void ArounderProcesor::AbortarAccio() { - if (accio == ACCIO_ESCALAR) { - if (O == ORIENT_DRETA) X=X-5; else X=X+5; - } - if (accio != ACCIO_CAMINAR && accio != ACCIO_CAURE && accio != ACCIO_PUJARCORDA && accio != ACCIO_BAIXARCORDA) { - accio = ACCIO_CAMINAR; - } -} - -void ArounderProcesor::initMort() { - accio = ACCIO_MORT; - drawManager->apply_surface(X-9, Y-12, explosio, mapa); - marcadorProcesor->numAroundersMorts++; -} - -void ArounderProcesor::initArrivat() { - accio = ACCIO_MORT; - marcadorProcesor->numAroundersArrivats++; -} - -void ArounderProcesor::initCaminar() { - frame = 0; - accio = ACCIO_CAMINAR; - procesarCaminar(); -} - -void ArounderProcesor::initCaure() { - frame = 0; - accio = ACCIO_CAURE; - altura = 0; - procesarCaure(); -} - -void ArounderProcesor::initParar() { - if (marcadorProcesor->numParar > 0) { - frame = 0; - accio = ACCIO_PARAR; - prevista = ACCIO_CAMINAR; - marcadorProcesor->numParar--; - procesarParar(); - } else { - frame = 0; - accio = ACCIO_CAMINAR; - prevista = ACCIO_CAMINAR; - procesarCaminar(); - } -} - -void ArounderProcesor::initCavar() { - if (marcadorProcesor->numCavar > 0) { - frame = 0; - accio = ACCIO_CAVAR; - prevista = ACCIO_CAMINAR; - marcadorProcesor->numCavar--; - procesarCavar(); - } else { - frame = 0; - accio = ACCIO_CAMINAR; - prevista = ACCIO_CAMINAR; - procesarCaminar(); - } -} - -void ArounderProcesor::initEscalar() { - if (marcadorProcesor->numEscalar > 0) { - frame = 0; - accio = ACCIO_ESCALAR; - prevista = ACCIO_CAMINAR; - marcadorProcesor->numEscalar--; - if (O == ORIENT_DRETA) { - X = X + 5; - } else { - X = X - 5; - } - procesarEscalar(); - } else { - frame = 0; - accio = ACCIO_CAMINAR; - prevista = ACCIO_CAMINAR; - procesarCaminar(); - } -} - -void ArounderProcesor::initPerforar() { - if (marcadorProcesor->numPerforar > 0) { - frame = 0; - accio = ACCIO_PERFORAR; - prevista = ACCIO_CAMINAR; - marcadorProcesor->numPerforar--; - procesarPerforar(); - } else { - frame = 0; - accio = ACCIO_CAMINAR; - prevista = ACCIO_CAMINAR; - procesarCaminar(); - } -} - -void ArounderProcesor::initEscalera() { - frame = 0; - accio = ACCIO_ESCALERA; - prevista = ACCIO_CAMINAR; - procesarEscalera(); -} - -void ArounderProcesor::initPasarela() { - frame = 0; - accio = ACCIO_PASARELA; - prevista = ACCIO_CAMINAR; - procesarPasarela(); -} - -void ArounderProcesor::initCorda() { - if (marcadorProcesor->numCorda > 0) { - frame = 0; - accio = ACCIO_CORDA; - prevista = ACCIO_CAMINAR; - marcadorProcesor->numCorda--; - procesarCorda(); - altura = 0; - } else { - frame = 0; - accio = ACCIO_CAMINAR; - prevista = ACCIO_CAMINAR; - procesarCaminar(); - } -} - -void ArounderProcesor::initPujarCorda() { - frame = 0; - accio = ACCIO_PUJARCORDA; - if (O == ORIENT_DRETA) { - X = X + 3; - } else { - X = X - 3; - } - procesarPujarCorda(); -} - -void ArounderProcesor::initBaixarCorda() { - frame = 0; - accio = ACCIO_BAIXARCORDA; - if (O == ORIENT_DRETA) { - X = X + 2; - } else { - X = X - 2; - } - procesarBaixarCorda(); -} - -void ArounderProcesor::initSuicidi() { - frame = 0; - accio = ACCIO_SUICIDI; - prevista = accio; - procesarSuicidi(); -} - - -void ArounderProcesor::procesarCaminar() { - const int frames[4] = {3,4,3,5}; - frame++; - if (frame >= 4) frame = 0; - frameX = frames[frame]; - frameY = O; - - if (blockCaure()) { - initCaure(); - } else { - switch ( prevista ) { - case ACCIO_PARAR: - initParar(); - break; - case ACCIO_PERFORAR: - initPerforar(); - break; - case ACCIO_ESCALERA: - initEscalera(); - break; - case ACCIO_SUICIDI: - initSuicidi(); - break; - default: - if (blockCordaPujar()) { - initPujarCorda(); - } else if (blockCaminar()) { - if (prevista == ACCIO_CAVAR) { - initCavar(); - } else if (prevista == ACCIO_ESCALAR) { - initEscalar(); - } else { - O = O ^ ORIENT_ESQUERRA; - } - } else { - if (blockArounder()) { - O = O ^ ORIENT_ESQUERRA; - } else { - if (blockPrecipici() && (prevista == ACCIO_PASARELA || prevista == ACCIO_CORDA)) { - if (prevista == ACCIO_PASARELA) { - initPasarela(); - } else { - initCorda(); - } - } else { - if (blockCordaBaixar()) { - initBaixarCorda(); - } else if (blockCordaPujar()) { - initPujarCorda(); - } else { - if (pujarEscalo()) Y--; - X+= ((((O ^ 8) << 1) >> 3) - 1); - if (baixarEscalo()) Y++; - } - } - } - } - } - } -} - -void ArounderProcesor::procesarCaure() { - frame = 0; - frameX = 11; - frameY = O; - - if (!blockCaure()) { - if (altura >= 32) { - initMort(); - } else { - initCaminar(); - } - } else { - if (Y > 151) { - initMort(); - } else { - Y++; - altura++; - } - } -} - -void ArounderProcesor::procesarParar() { - frame = 0; - frameX = 2; - frameY = 8; -} - -void ArounderProcesor::procesarCavar() { - const int frames[3] = {6,7,8}; - frame++; - if (frame == 3) frame = 0; - frameX = frames[frame]; - frameY = O; - - if (blockCaure()) { - initCaure(); - } else { - if (!blockCaminar()) { - initCaminar(); - } else { - if (frame == 2) { - doCavar(); - if (O == ORIENT_DRETA) { - X++; - } else { - X--; - } - } - } - } -} - -void ArounderProcesor::procesarEscalar() { - const int frames[2] = {9,10}; - frame++; - if (frame == 2) frame = 0; - frameX = frames[frame]; - frameY = O; - - if (!blockParet(5)) { - if (O == ORIENT_DRETA) { - X = X - 1; - } else { - X = X + 1; - } - Y=Y-1; - initCaminar(); - } else { - if (blockTecho(5)) { - if (O == ORIENT_DRETA) { - X = X - 5; - } else { - X = X + 5; - } - initCaminar(); - } else { - Y--; - } - } -} - -void ArounderProcesor::procesarPerforar() { - const int frames[2] = {0,1}; - frame++; - if (frame == 2) frame = 0; - frameX = frames[frame]; - frameY = 8; - - if (blockCaure()) { - initCaure(); - } else { - if (frame == 1) { - doPerforar(); - Y++; - } - } -} - -void ArounderProcesor::procesarEscalera() { - const int frames[5] = {12,13,14,15,4}; - frame++; - if (frame == 5) frame = 0; - frameX = frames[frame]; - frameY = O; - - if (blockParet() || blockTecho() || marcadorProcesor->numEscalera == 0) { - initCaminar(); - } else { - if (frame == 3) { - doEscalera(); - marcadorProcesor->numEscalera--; - } - if (frame == 4) { - Y--; - if (O == ORIENT_DRETA) { - X++; - } else { - X--; - } - } - } -} - -void ArounderProcesor::procesarPasarela() { - const int frames[5] = {12,13,14,15,4}; - frame++; - if (frame == 5) frame = 0; - frameX = frames[frame]; - frameY = O; - - if (blockParet() || !blockPrecipiciPasarela() || marcadorProcesor->numPasarela == 0) { - initCaminar(); - } else { - if (frame == 3) { - doEscalera(1); - marcadorProcesor->numPasarela--; - } - if (frame == 4) { - if (O == ORIENT_DRETA) { - X=X+2; - } else { - X=X-2; - } - } - } -} - -void ArounderProcesor::procesarCorda() { - const int frames[4] = {12,13,14,15}; - if (frame < 3) frame++; - frameX = frames[frame]; - frameY = O; - - if (frame == 3 ) { - if (!blockNovaCorda()) { - initCaminar(); - } else { - doCorda(); - altura++; - } - } - -} - -void ArounderProcesor::procesarPujarCorda() { - const int frames[2] = {9,10}; - frame++; - if (frame == 2) frame = 0; - frameX = frames[frame]; - frameY = O; - - if (!blockCordaPujar(3)) { - Y = Y - 2; - initCaminar(); - } else { - if (blockTecho(3)) { - if (O == ORIENT_DRETA) { - X = X - 3; - } else { - X = X + 3; - } - initCaminar(); - } else { - Y--; - } - } -} - -void ArounderProcesor::procesarBaixarCorda() { - const int frames[2] = {9,10}; - frame++; - if (frame == 2) frame = 0; - frameX = frames[frame]; - frameY = ORIENT_ESQUERRA - O; - - if (!blockCordaBaixar(2)) { - initCaminar(); - } else { - if (!blockCaure(3)) { - if (O == ORIENT_DRETA) { - X = X - 2; - } else { - X = X + 2; - } - initCaminar(); - } else { - Y++; - } - } -} - -void ArounderProcesor::procesarSuicidi() { - const int frames[5] = {0,1,2,1,2}; - frameX = frames[frame]; - frameY = 0; - - if (frame == 4) initMort(); - frame++; -} - -bool ArounderProcesor::blockCaure(int desfase) { - if ( O == ORIENT_ESQUERRA) desfase = -desfase; - return ( (get_pixel(X+desfase , Y+8) == 0 || get_pixel(X+desfase , Y+8) == colorCorda) && - (get_pixel(X+desfase+1, Y+8) == 0 || get_pixel(X+desfase+1, Y+8) == colorCorda) && - (get_pixel(X+desfase+2, Y+8) == 0 || get_pixel(X+desfase+2, Y+8) == colorCorda) && - (get_pixel(X+desfase+3, Y+8) == 0 || get_pixel(X+desfase+3, Y+8) == colorCorda) && - (get_pixel(X+desfase+4, Y+8) == 0 || get_pixel(X+desfase+4, Y+8) == colorCorda) && - (get_pixel(X+desfase+5, Y+8) == 0 || get_pixel(X+desfase+5, Y+8) == colorCorda) && - (get_pixel(X+desfase+6, Y+8) == 0 || get_pixel(X+desfase+6, Y+8) == colorCorda) && - (get_pixel(X+desfase+7, Y+8) == 0 || get_pixel(X+desfase+7, Y+8) == colorCorda) && - (get_pixel(X+desfase , Y+9) == 0 || get_pixel(X+desfase , Y+9) == colorCorda) && - (get_pixel(X+desfase+1, Y+9) == 0 || get_pixel(X+desfase+1, Y+9) == colorCorda) && - (get_pixel(X+desfase+2, Y+9) == 0 || get_pixel(X+desfase+2, Y+9) == colorCorda) && - (get_pixel(X+desfase+3, Y+9) == 0 || get_pixel(X+desfase+3, Y+9) == colorCorda) && - (get_pixel(X+desfase+4, Y+9) == 0 || get_pixel(X+desfase+4, Y+9) == colorCorda) && - (get_pixel(X+desfase+5, Y+9) == 0 || get_pixel(X+desfase+5, Y+9) == colorCorda) && - (get_pixel(X+desfase+6, Y+9) == 0 || get_pixel(X+desfase+6, Y+9) == colorCorda) && - (get_pixel(X+desfase+7, Y+9) == 0 || get_pixel(X+desfase+7, Y+9) == colorCorda) - ); -} - -bool ArounderProcesor::baixarEscalo() { - return ( get_pixel(X , Y+8) == 0 && - get_pixel(X+1, Y+8) == 0 && - get_pixel(X+2, Y+8) == 0 && - get_pixel(X+3, Y+8) == 0 && - get_pixel(X+4, Y+8) == 0 && - get_pixel(X+5, Y+8) == 0 && - get_pixel(X+6, Y+8) == 0 && - get_pixel(X+7, Y+8) == 0 && - - ( get_pixel(X , Y+9) != 0 || - get_pixel(X+1, Y+9) != 0 || - get_pixel(X+2, Y+9) != 0 || - get_pixel(X+3, Y+9) != 0 || - get_pixel(X+4, Y+9) != 0 || - get_pixel(X+5, Y+9) != 0 || - get_pixel(X+6, Y+9) != 0 || - get_pixel(X+7, Y+9) != 0 - ) - ); -} - -bool ArounderProcesor::blockCaminar() { - if (O == ORIENT_DRETA) { - return (get_pixel(X+8, Y+6) != 0 && get_pixel(X+8, Y+7) != 0 && get_pixel(X+8, Y+6) != colorEscalo); - } else { - return (get_pixel(X-1, Y+6) != 0 && get_pixel(X-1, Y+7) != 0 && get_pixel(X-1, Y+6) != colorEscalo); - } -} - -bool ArounderProcesor::pujarEscalo() { - if (O == ORIENT_DRETA) { - return ( (get_pixel(X+8, Y+6) == 0 || get_pixel(X+8, Y+6) == colorEscalo) && get_pixel(X+8, Y+7) != 0); - } else { - return ( (get_pixel(X-1, Y+6) == 0 || get_pixel(X-1, Y+6) == colorEscalo) && get_pixel(X-1, Y+7) != 0); - } -} - -bool ArounderProcesor::blockArounder() { - bool resultado = false; - if (anterior != NULL) resultado = anterior->checkArounderAnt(X, Y, O); - if (siguiente != NULL) resultado = resultado || siguiente->checkArounderSig(X, Y, O); - - return resultado; -} - -bool ArounderProcesor::blockParet(int desfase) { - if (O == ORIENT_DRETA) { - return (get_pixel(X+8-desfase, Y ) != 0 || - get_pixel(X+8-desfase, Y+1) != 0 || - get_pixel(X+8-desfase, Y+2) != 0 || - get_pixel(X+8-desfase, Y+3) != 0 || - get_pixel(X+8-desfase, Y+4) != 0 || - get_pixel(X+8-desfase, Y+5) != 0 || - get_pixel(X+8-desfase, Y+6) != 0// || - //get_pixel(X+8-desfase, Y+7) != 0 - ); - } else { - return (get_pixel(X-1+desfase, Y ) != 0 || - get_pixel(X-1+desfase, Y+1) != 0 || - get_pixel(X-1+desfase, Y+2) != 0 || - get_pixel(X-1+desfase, Y+3) != 0 || - get_pixel(X-1+desfase, Y+4) != 0 || - get_pixel(X-1+desfase, Y+5) != 0 || - get_pixel(X-1+desfase, Y+6) != 0// || - //get_pixel(X-1+desfase, Y+7) != 0 - ); - } -} - -bool ArounderProcesor::blockTecho(int desfase) { - if ( O == ORIENT_DRETA) desfase = -desfase; - - return ( (get_pixel(X+desfase , Y-1) != 0 && get_pixel(X+desfase , Y-1) != colorCorda) || - (get_pixel(X+desfase+1, Y-1) != 0 && get_pixel(X+desfase+1, Y-1) != colorCorda) || - (get_pixel(X+desfase+2, Y-1) != 0 && get_pixel(X+desfase+2, Y-1) != colorCorda) || - (get_pixel(X+desfase+3, Y-1) != 0 && get_pixel(X+desfase+3, Y-1) != colorCorda) || - (get_pixel(X+desfase+4, Y-1) != 0 && get_pixel(X+desfase+4, Y-1) != colorCorda) || - (get_pixel(X+desfase+5, Y-1) != 0 && get_pixel(X+desfase+5, Y-1) != colorCorda) || - (get_pixel(X+desfase+6, Y-1) != 0 && get_pixel(X+desfase+6, Y-1) != colorCorda) || - (get_pixel(X+desfase+7, Y-1) != 0 && get_pixel(X+desfase+7, Y-1) != colorCorda) - ); -} - -bool ArounderProcesor::blockPrecipici() { - if (O == ORIENT_DRETA) { - return (get_pixel(X+7, Y+8) == 0 && - get_pixel(X+6, Y+8) == 0 && - get_pixel(X+5, Y+8) == 0 && - get_pixel(X+7, Y+9) == 0 && - get_pixel(X+6, Y+9) == 0 && - get_pixel(X+5, Y+9) == 0 - ); - } else { - return (get_pixel(X , Y+8) == 0 && - get_pixel(X+1, Y+8) == 0 && - get_pixel(X+2, Y+8) == 0 && - get_pixel(X , Y+9) == 0 && - get_pixel(X+1, Y+9) == 0 && - get_pixel(X+2, Y+9) == 0 - ); - } -} - -bool ArounderProcesor::blockPrecipiciPasarela() { - if (O == ORIENT_DRETA) { - return ((get_pixel(X+7, Y+8) == 0 || get_pixel(X+7, Y+8) == colorEscalo) && - (get_pixel(X+6, Y+8) == 0 || get_pixel(X+6, Y+8) == colorEscalo) && - (get_pixel(X+5, Y+8) == 0 || get_pixel(X+5, Y+8) == colorEscalo) && - (get_pixel(X+7, Y+9) == 0 || get_pixel(X+7, Y+9) == colorEscalo) && - (get_pixel(X+6, Y+9) == 0 || get_pixel(X+6, Y+9) == colorEscalo) && - (get_pixel(X+5, Y+9) == 0 || get_pixel(X+5, Y+9) == colorEscalo) - ); - } else { - return ((get_pixel(X , Y+8) == 0 || get_pixel(X , Y+8) == colorEscalo) && - (get_pixel(X+1, Y+8) == 0 || get_pixel(X+1, Y+8) == colorEscalo) && - (get_pixel(X+2, Y+8) == 0 || get_pixel(X+2, Y+8) == colorEscalo) && - (get_pixel(X , Y+9) == 0 || get_pixel(X , Y+9) == colorEscalo) && - (get_pixel(X+1, Y+9) == 0 || get_pixel(X+1, Y+9) == colorEscalo) && - (get_pixel(X+2, Y+9) == 0 || get_pixel(X+2, Y+9) == colorEscalo) - ); - } -} - -bool ArounderProcesor::blockNovaCorda() { - if (O == ORIENT_DRETA) { - return (get_pixel(X+6, Y+8+altura) == 0 && - get_pixel(X+6, Y+9+altura) == 0 && - get_pixel(X+6, Y+10+altura) == 0 - ); - } else { - return (get_pixel(X+1, Y+8+altura) == 0 && - get_pixel(X+1, Y+9+altura) == 0 && - get_pixel(X+1, Y+10+altura) == 0 - ); - } -} - -bool ArounderProcesor::blockCordaBaixar(int desfase) { - if (O == ORIENT_DRETA) { - return (get_pixel(X+6-desfase, Y+8) == colorCorda); - } else { - return (get_pixel(X+1+desfase, Y+8) == colorCorda); - } -} - -bool ArounderProcesor::blockCordaPujar(int desfase) { - if (O == ORIENT_DRETA) { - return (get_pixel(X+6-desfase, Y+5) == colorCorda); - } else { - return (get_pixel(X+1+desfase, Y+5) == colorCorda); - } -} - -bool ArounderProcesor::checkArounderAnt(int x, int y, int o) { - if ( accio == ACCIO_PARAR && (y >= Y-8) && (y <= Y+8) && ( (o == ORIENT_DRETA && X == x+8) || (o == ORIENT_ESQUERRA && X == x-8) ) ) { - return true; - } else { - if (anterior != NULL) { - return anterior->checkArounderAnt(x, y, o); - } else { - return false; - } - } -} - -bool ArounderProcesor::checkArounderSig(int x, int y, int o) { - if ( accio == ACCIO_PARAR && (y >= Y-8) && (y <= Y+8) && ( (o == ORIENT_DRETA && X == x+8) || (o == ORIENT_ESQUERRA && X == x-8) ) ) { - return true; - } else { - if (siguiente != NULL) { - return siguiente->checkArounderSig(x, y, o); - } else { - return false; - } - } -} - -void ArounderProcesor::doCavar() { - if (O == ORIENT_DRETA) { - put_pixel(X+8, Y, 0); - put_pixel(X+8, Y+1, 0); - put_pixel(X+8, Y+2, 0); - put_pixel(X+8, Y+3, 0); - put_pixel(X+8, Y+4, 0); - put_pixel(X+8, Y+5, 0); - put_pixel(X+8, Y+6, 0); - put_pixel(X+8, Y+7, 0); - } else { - put_pixel(X-1, Y, 0); - put_pixel(X-1, Y+1, 0); - put_pixel(X-1, Y+2, 0); - put_pixel(X-1, Y+3, 0); - put_pixel(X-1, Y+4, 0); - put_pixel(X-1, Y+5, 0); - put_pixel(X-1, Y+6, 0); - put_pixel(X-1, Y+7, 0); - } -} - -void ArounderProcesor::doPerforar() { - put_pixel(X , Y+8, 0); - put_pixel(X+1, Y+8, 0); - put_pixel(X+2, Y+8, 0); - put_pixel(X+3, Y+8, 0); - put_pixel(X+4, Y+8, 0); - put_pixel(X+5, Y+8, 0); - put_pixel(X+6, Y+8, 0); - put_pixel(X+7, Y+8, 0); -} - -void ArounderProcesor::doEscalera(int desfase) { - if (O == ORIENT_DRETA) { - put_pixel(X+5, Y+7+desfase, colorEscalo); - put_pixel(X+6, Y+7+desfase, colorEscalo); - put_pixel(X+7, Y+7+desfase, colorEscalo); - } else { - put_pixel(X+2, Y+7+desfase, colorEscalo); - put_pixel(X+1, Y+7+desfase, colorEscalo); - put_pixel(X , Y+7+desfase, colorEscalo); - } -} - -void ArounderProcesor::doCorda() { - if (O == ORIENT_DRETA) { - put_pixel(X+6, Y+8+altura, colorCorda); - } else { - put_pixel(X+1, Y+8+altura, colorCorda); - } -} - -Uint32 ArounderProcesor::get_pixel( int x, int y ) -{ - return pixels[ ( y * mapa->w ) + x ]; -} - -void ArounderProcesor::put_pixel( int x, int y, Uint32 pixel ) -{ - pixels[ ( y * mapa->w ) + x ] = pixel; -} - -/* - -#define COLOR 0xFFFFFFFF; - -void vline(const int x, const int y1, const int y2) { - if (x < 0 || x > 319) return; - const int yy1 = y1 < 0 ? 0 : y1 > 239 ? 239 : y1; - const int yy2 = y2 < 0 ? 0 : y2 > 239 ? 239 : y2; - for (int y=yy1;y<=yy2;y++) pixels[x+y*pitch] = COLOR; -} - -void hline(const int x1, const int x2, const int y) { - if (y < 0 || y > 239) return; - const int yy = y*pitch; - const int xx1 = x1 < 0 ? 0 : x1 > 319 ? 319 : x1; - const int xx2 = x2 < 0 ? 0 : x2 > 319 ? 319 : x2; - for (int x=xx1;x<=xx2;x++) pixels[x+yy] = COLOR; -} - -void circle(const int x, const int y) { - hline(x+9, x+9+7, y+0); hline(x+9, x+9+7, y+24); - hline(x+7, x+7+11, y+1); hline(x+7, x+7+11, y+23); - hline(x+5, x+5+15, y+2); hline(x+5, x+5+15, y+22); - hline(x+4, x+4+17, y+3); hline(x+4, x+4+17, y+21); - hline(x+3, x+3+19, y+4); hline(x+3, x+3+19, y+20); - hline(x+2, x+2+21, y+5); hline(x+2, x+2+21, y+19); - hline(x+2, x+2+21, y+6); hline(x+2, x+2+21, y+18); - hline(x+1, x+1+23, y+7); hline(x+1, x+1+23, y+17); - hline(x+1, x+1+23, y+8); hline(x+1, x+1+23, y+16); - hline(x, x+25, y+9); hline(x, x+25, y+15); - hline(x, x+25, y+10); hline(x, x+25, y+14); - hline(x, x+25, y+11); hline(x, x+25, y+13); - hline(x, x+25, y+12); -} - -*/ \ No newline at end of file diff --git a/ArounderProcesor.h b/ArounderProcesor.h deleted file mode 100644 index 24c817d..0000000 --- a/ArounderProcesor.h +++ /dev/null @@ -1,106 +0,0 @@ -#pragma once -#include "DrawManager.h" -#include "MarcadorProcesor.h" -#include "const.h" - -const int ORIENT_DRETA = 0; -const int ORIENT_ESQUERRA = 8; - -class ArounderProcesor -{ -public: - ArounderProcesor(DrawManager *pDrawManager, MarcadorProcesor *pMarcadorProcesor, SDL_Surface *pSprites, SDL_Surface *pMapa, int pxInicial, int pyInicial, int pxFinal, int pyFinal ); - ~ArounderProcesor(void); - ArounderProcesor *Afegir(); - - void Pintar(); - void Procesar(); - ArounderProcesor *Seleccionar(int mouseX, int mouseY); - void AbortarAccio(); - - ArounderProcesor *anterior; - ArounderProcesor *siguiente; - - int prevista; - int accio; - int X; - int Y; - int O; - - Uint32 colorEscalo; - Uint32 colorCorda; - -private: - SDL_Rect clip; - SDL_Surface *sprites; - SDL_Surface *mapa; - SDL_Surface *explosio; - Uint32 *pixels; - - int frame; - int frameX; - int frameY; - int altura; - - int xInicial; - int yInicial; - int xFinal; - int yFinal; - - DrawManager *drawManager; - MarcadorProcesor *marcadorProcesor; - - void initMort(); - void initArrivat(); - void initCaminar(); - void initCaure(); - void initParar(); - void initCavar(); - void initEscalar(); - void initPerforar(); - void initEscalera(); - void initPasarela(); - void initCorda(); - void initPujarCorda(); - void initBaixarCorda(); - void initSuicidi(); - - void Matar(); - - void procesarCaminar(); - void procesarCaure(); - void procesarParar(); - void procesarCavar(); - void procesarEscalar(); - void procesarPerforar(); - void procesarEscalera(); - void procesarPasarela(); - void procesarCorda(); - void procesarPujarCorda(); - void procesarBaixarCorda(); - void procesarSuicidi(); - - bool blockCaure(int desfase = 0); - bool blockCaminar(); - bool blockArounder(); - bool blockParet(int desfase = 0); - bool blockTecho(int desfase = 0); - bool blockPrecipici(); - bool blockPrecipiciPasarela(); - bool blockNovaCorda(); - bool blockCordaBaixar(int desfase = 0); - bool blockCordaPujar(int desfase = 0); - bool pujarEscalo(); - bool baixarEscalo(); - - bool checkArounderAnt(int x, int y, int o); - bool checkArounderSig(int x, int y, int o); - - void doCavar(); - void doPerforar(); - void doEscalera(int desfase = 0); - void doCorda(); - - Uint32 get_pixel( int x, int y ); - void put_pixel( int x, int y, Uint32 pixel ); -}; diff --git a/DrawManager.cpp b/DrawManager.cpp deleted file mode 100644 index 1df3fc1..0000000 --- a/DrawManager.cpp +++ /dev/null @@ -1,283 +0,0 @@ -#include "DrawManager.h" -#include "const.h" -#include "fileManager.h" -#include "SDL2/SDL_image.h" - - -SDL_Window *sdlWindow = NULL; -SDL_Renderer *sdlRenderer = NULL; - -DrawManager::DrawManager(int pMode) { - mode = pMode; - screen = NULL; -} - -DrawManager::~DrawManager(void) { - SDL_FreeSurface(temp); - SDL_FreeSurface(black); - SDL_FreeSurface(faded); - - SDL_DestroyRenderer(sdlRenderer); - SDL_DestroyWindow(sdlWindow); -} - -bool DrawManager::Init(void) { - - sdlWindow = SDL_CreateWindow(APPLICATION_NAME, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_SHOWN); - sdlRenderer = SDL_CreateRenderer(sdlWindow, -1, 0); - SDL_RenderSetLogicalSize(sdlRenderer, 320, 240); - - SDL_ShowCursor(0); - - color_blanco = -1; - color_rojo = SDL_MapRGB( screen->format, 255, 0, 0 ); - color_verde = SDL_MapRGB( screen->format, 0, 255, 0 ); - color_azul = SDL_MapRGB( screen->format, 0, 0, 255 ); - - black = LoadBitmap("black.gif"); - temp = LoadBitmap("black.gif"); - faded = LoadBitmap("black.gif"); - - return true; -} - -bool DrawManager::Flip(void) -{ - SDL_RenderPresent(sdlRenderer); - return true; -} - -SDL_Surface *DrawManager::LoadBitmap(const char *bitmapfilename, const bool doColorKey) -{ - //Get the bitmap's buffer and size from the resource file - int filesize = 0; - const char *buffer = file_getBufferFromResource(bitmapfilename, filesize); - - //Load the buffer into a surface using RWops - SDL_RWops *rw = SDL_RWFromMem(buffer, filesize); - //SDL_Surface *temp = SDL_LoadBMP_RW(rw, 1); - SDL_Surface *temp = IMG_Load_RW(rw, 1); - - //Release the bitmap buffer memory - free(buffer); - - //Were we able to load the bitmap? - if (temp == NULL) - { - printf("Unable to load bitmap: %s\n", SDL_GetError()); - exit(1); - } - - //Convert the image to optimal display format - SDL_Surface *image; - image = SDL_DisplayFormat(temp); - - if (doColorKey) { - Uint32 colorkey = SDL_MapRGB( image->format, 0, 0, 0 ); - SDL_SetColorKey( image, SDL_SRCCOLORKEY, colorkey ); - } - - //Free the temporary surface - SDL_FreeSurface(temp); - - //Return our loaded image - return image; -} - - -SDL_Surface *DrawManager::LoadMask(const char *bitmapfilename) -{ - //Get the bitmap's buffer and size from the resource file - int filesize = 0; - const char *buffer = file_getBufferFromResource(bitmapfilename, filesize); - - //Load the buffer into a surface using RWops - SDL_RWops *rw = SDL_RWFromMem(buffer, filesize); - //SDL_Surface *temp = SDL_LoadBMP_RW(rw, 1); - SDL_Surface *temp = IMG_Load_RW(rw, 1); - - //Release the bitmap buffer memory - free(buffer); - - //Were we able to load the bitmap? - if (temp == NULL) - { - printf("Unable to load bitmap: %s\n", SDL_GetError()); - exit(1); - } - - //Convert the image to optimal display format - SDL_Surface *image; - image = SDL_DisplayFormat(temp); - - Uint32 colorkey = SDL_MapRGB( image->format, 255, 255, 255 ); - SDL_SetColorKey( image, SDL_SRCCOLORKEY, colorkey ); - - //Free the temporary surface - SDL_FreeSurface(temp); - - //Return our loaded image - return image; -} - - -void DrawManager::apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination, SDL_Rect* clip ) -{ - SDL_Rect offset; - - offset.x = x; - offset.y = y; - - SDL_BlitSurface( source, clip, destination, &offset ); -} - -void DrawManager::Blit( int x, int y, SDL_Surface* source, SDL_Rect* clip ) -{ - apply_surface(x, y, source, screen, clip); -} - -void DrawManager::Print( int x, int y, SDL_Surface* source, int w, int h, const char *text, SDL_Surface *dest ) { - int index = 0; - SDL_Rect clip; - - clip.y = 0; - clip.w = w; - clip.h = h; - - if (dest == NULL) dest = screen; - - while (text[index] > 0) { - clip.x = (text[index] - 32) * 7; - apply_surface(x+(index*w), y, source, dest, &clip); - index++; - } -} - -void DrawManager::FadeOut() -{ - alpha = 0; - apply_surface(0, 0, screen, temp); - - int currentTicks; - int startTicks = SDL_GetTicks(); - - while (alpha < 255) { - SDL_SetAlpha( black, SDL_SRCALPHA | SDL_RLEACCEL, alpha ); - Blit(0,0, temp); - Blit(0,0, black); - Flip(); - - currentTicks = SDL_GetTicks() - startTicks; - if( currentTicks >= 10 ) { - startTicks = SDL_GetTicks(); - alpha+=8; - } - - } -} - -void DrawManager::FadeIn() -{ - alpha = 255; - apply_surface(0, 0, screen, temp); - - int currentTicks; - int startTicks = SDL_GetTicks(); - - while (alpha > 0) { - SDL_SetAlpha( black, SDL_SRCALPHA | SDL_RLEACCEL, alpha ); - Blit(0,0, temp); - Blit(0,0, black); - Flip(); - - currentTicks = SDL_GetTicks() - startTicks; - if( currentTicks >= 10 ) { - startTicks = SDL_GetTicks(); - alpha-=8; - } - } -} - -void DrawManager::FadeOutGray() -{ - alpha = 0; - apply_surface(0, 0, screen, temp); - - int currentTicks; - int startTicks = SDL_GetTicks(); - - while (alpha < 127) { - SDL_SetAlpha( black, SDL_SRCALPHA | SDL_RLEACCEL, alpha ); - Blit(0,0, temp); - Blit(0,0, black); - Flip(); - - currentTicks = SDL_GetTicks() - startTicks; - if( currentTicks >= 10 ) { - startTicks = SDL_GetTicks(); - alpha+=8; - } - } - apply_surface(0, 0, screen, faded); -} - -void DrawManager::FadeInGray() -{ - alpha = 127; - //apply_surface(0, 0, screen, temp); - - int currentTicks; - int startTicks = SDL_GetTicks(); - - while (alpha > 0) { - SDL_SetAlpha( black, SDL_SRCALPHA | SDL_RLEACCEL, alpha ); - Blit(0,0, temp); - Blit(0,0, black); - Flip(); - - currentTicks = SDL_GetTicks() - startTicks; - if( currentTicks >= 10 ) { - startTicks = SDL_GetTicks(); - alpha-=8; - } - } -} - -void DrawManager::DrawFadedBack() { - Blit(0,0, faded); -} - -SDL_Surface *DrawManager::LoadFont(const char *bitmapfilename, const Uint32 color) -{ - if (color == 0xFFFFFFFF) { - return LoadBitmap(bitmapfilename, true); - } else { - SDL_Surface *temporal = LoadBitmap(bitmapfilename, true); - if( SDL_MUSTLOCK( temporal ) ) { SDL_LockSurface( temporal ); } - - for (int x=0; xw; x++) { - for (int y=0; yh; y++) { - if (get_pixel32(temporal, x, y) == 0xFFFFFF) { - put_pixel32(temporal, x, y, color); - } - } - } - - if( SDL_MUSTLOCK( temporal ) ) { SDL_UnlockSurface( temporal ); } - - return temporal; - } -} - -Uint32 DrawManager::get_pixel32( SDL_Surface *surface, int x, int y ) -{ - Uint32 *pixels = (Uint32 *)surface->pixels; - return pixels[ ( y * surface->w ) + x ]; -} - -void DrawManager::put_pixel32( SDL_Surface *surface, int x, int y, Uint32 pixel ) -{ - Uint32 *pixels = (Uint32 *)surface->pixels; - pixels[ ( y * surface->w ) + x ] = pixel; -} - diff --git a/DrawManager.h b/DrawManager.h deleted file mode 100644 index 3d1d0c4..0000000 --- a/DrawManager.h +++ /dev/null @@ -1,41 +0,0 @@ -#pragma once -#include "SDL2/SDL.h" - -class DrawManager -{ -public: - DrawManager(int pMode); - ~DrawManager(void); - - bool Init(void); - bool Flip(void); - - SDL_Surface *LoadBitmap(const char *bitmapfilename, const bool doColorKey = false); - SDL_Surface *LoadMask(const char *bitmapfilename); - void apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination, SDL_Rect* clip = NULL ); - void Blit( int x, int y, SDL_Surface* source, SDL_Rect* clip = NULL ); - void Print( int x, int y, SDL_Surface* source, int w, int h, const char *text, SDL_Surface* dest = NULL ); - void FadeOut(); - void FadeIn(); - void FadeOutGray(); - void FadeInGray(); - void DrawFadedBack(); - SDL_Surface *LoadFont(const char *bitmapfilename, const Uint32 color = 0xFFFFFFFF); - - int mode; - - Uint32 color_blanco; - Uint32 color_rojo; - Uint32 color_verde; - Uint32 color_azul; -private: - SDL_Surface *screen; - SDL_Surface *black; - SDL_Surface *temp; - SDL_Surface *faded; - int alpha; - - Uint32 get_pixel32( SDL_Surface *surface, int x, int y ); - void put_pixel32( SDL_Surface *surface, int x, int y, Uint32 pixel ); - -}; diff --git a/GameController.cpp b/GameController.cpp deleted file mode 100644 index cff9b8b..0000000 --- a/GameController.cpp +++ /dev/null @@ -1,421 +0,0 @@ -#include "GameController.h" -#include "const.h" -#include "fileManager.h" - -GameController::GameController(DrawManager *p_drawManager, InputManager *p_inputManager) { - drawManager = p_drawManager; - inputManager = p_inputManager; -} - -GameController::~GameController() { -} - -bool GameController::Init() -{ - char arxiuFondo[10] = "BKG00.GIF"; - arxiuFondo[4] = (gameInfo->fase % 10) + 48; - fondo = drawManager->LoadBitmap(arxiuFondo); - sprites = drawManager->LoadBitmap("sprites.gif", true); - font1 = drawManager->LoadFont("fuente1.gif"); - cursor = drawManager->LoadFont("cursor.gif"); - puerta = drawManager->LoadFont("puerta.gif"); - marca = drawManager->LoadFont("marca.gif"); - menu = drawManager->LoadFont("menu.gif"); - - aiguaProcesor = new AiguaProcesor(drawManager, gameInfo->fase); - marcadorProcesor = new MarcadorProcesor(drawManager); - - CarregarMapa(gameInfo->fase); - - primerArounder = new ArounderProcesor(drawManager, marcadorProcesor, sprites, mapa, (xInicial*16)+8, (yInicial*16)+8, (xFinal*16)+8, (yFinal*16)+8); - marcadorProcesor->numAroundersEixits ++; - arounderSeleccionat = primerArounder; - - if ( ((gameInfo->fase+1) % 5) == 0) { - music_load( "mus6.mp3"); - } else { - music_load( "mus4.mp3"); - } - - return true; -} - -void GameController::Go(GameInfo *pGameInfo) -{ - gameInfo = pGameInfo; - - bool salir = false; - - int mouseX = 0; - int mouseY = 0; - int nuevaAccion = -1; - - if ( !Init() ) { salir = true; gameInfo->estado = ESTADO_SALIR; } - - music_play(-1); - drawManager->Blit(0,0, fondo); - drawManager->Blit(0,0, mapa); - drawManager->FadeIn(); - - int arounderCount = SDL_GetTicks(); - startTicks = SDL_GetTicks(); - - while ( !salir ) { - - PintarEscena(); - PintarCursor(); - drawManager->Flip(); - - inputManager->Update(); - mouseX = inputManager->mouseX; - mouseY = inputManager->mouseY; - - if (inputManager->Pausa() || inputManager->BotoPulsat(SDL_BUTTON_MIDDLE) || !inputManager->finestraActiva) { - arounderCount = SDL_GetTicks() - arounderCount; - salir = Pausa(); - arounderCount = SDL_GetTicks() - arounderCount; - } - - if (inputManager->Menu()) { - arounderCount = SDL_GetTicks() - arounderCount; - salir = Menu(); - arounderCount = SDL_GetTicks() - arounderCount; - } - - if (inputManager->eixir) { - salir = true; - gameInfo->estado = ESTADO_SALIR; - } - - if (inputManager->BotoPulsat(SDL_BUTTON_RIGHT) && arounderSeleccionat != NULL) { - arounderSeleccionat->AbortarAccio(); - } - - if (inputManager->BotoPulsat(SDL_BUTTON_LEFT)) { - ArounderProcesor *nouSeleccionat = primerArounder->Seleccionar(mouseX, mouseY); - if (nouSeleccionat != NULL) { - arounderSeleccionat = nouSeleccionat; - } else if (mouseY < 165 && arounderSeleccionat != NULL && arounderSeleccionat->accio == ACCIO_CAMINAR) { - if (mouseX > arounderSeleccionat->X) { - arounderSeleccionat->O = ORIENT_DRETA; - } else { - arounderSeleccionat->O = ORIENT_ESQUERRA; - } - } - nuevaAccion = marcadorProcesor->Procesar(mouseX, mouseY); - } - - if (inputManager->BotoSoltat(SDL_BUTTON_LEFT)) { - if (nuevaAccion != -1 && arounderSeleccionat != NULL) { - if (nuevaAccion == arounderSeleccionat->prevista) { - arounderSeleccionat->prevista = arounderSeleccionat->accio; - } else { - arounderSeleccionat->prevista = nuevaAccion; - } - } - } - - currentTicks = SDL_GetTicks() - startTicks; - if( currentTicks >= marcadorProcesor->velocitat ) { - startTicks = SDL_GetTicks(); - aiguaProcesor->Procesar(); - if (primerArounder != NULL) { - primerArounder->Procesar(); - - ArounderProcesor *actual = primerArounder; - while (actual->siguiente != NULL) { - actual = actual->siguiente; - } - - while (actual != NULL) { - if (actual->accio == ACCIO_MORT) { - ArounderProcesor *borrar = actual; - if (borrar->siguiente != NULL) { - borrar->siguiente->anterior = borrar->anterior; - } - if (borrar->anterior != NULL) { - borrar->anterior->siguiente = borrar->siguiente; - } - if (borrar == primerArounder) primerArounder = borrar->siguiente; - if (borrar == arounderSeleccionat) arounderSeleccionat = NULL; - actual = borrar->anterior; - delete borrar; - } else { - actual = actual->anterior; - } - } - } - } - - if ( (SDL_GetTicks() - arounderCount) >= marcadorProcesor->velocitat*58) { - if (marcadorProcesor->numAroundersEixits < marcadorProcesor->numArounders) { - if (primerArounder != NULL) { - primerArounder->Afegir(); - } else { - primerArounder = new ArounderProcesor(drawManager, marcadorProcesor, sprites, mapa, (xInicial*16)+8, (yInicial*16)+8, (xFinal*16)+8, (yFinal*16)+8); - } - marcadorProcesor->numAroundersEixits ++; - arounderCount = SDL_GetTicks(); - } - } - - if (marcadorProcesor->numAroundersArrivats + marcadorProcesor->numAroundersMorts == marcadorProcesor->numArounders) { - if (marcadorProcesor->numAroundersArrivats >= marcadorProcesor->AroundersNec) { - salir = true; - gameInfo->estado = ESTADO_POSTFASE; - gameInfo->fase++; - } else { - salir = true; - gameInfo->estado = ESTADO_MORT; - } - } - - if (inputManager->BotoPulsat(SDL_BUTTON_MIDDLE)) { - salir = true; - gameInfo->estado = ESTADO_JUEGO; - gameInfo->fase++; - } - /*if (arounderSeleccionat != NULL && arounderSeleccionat->prevista == ACCIO_SUICIDI2) { - gameInfo->estado = ESTADO_MORT; - salir = true; - }*/ - - } - - music_fadeOut(); - drawManager->FadeOut(); - - Finalize(); -} - -void GameController::PintarEscena() { - int accio = -1; - int prevista = -1; - - drawManager->Blit(0,0, fondo); - drawManager->Blit(0,0, mapa); - drawManager->Blit(xInicial*16, yInicial*16, puerta); - drawManager->Blit(xFinal*16, yFinal*16, puerta); - - if (primerArounder != NULL) primerArounder->Pintar(); - - aiguaProcesor->Pintar(); - - if (arounderSeleccionat != NULL) { - accio = arounderSeleccionat->accio; - prevista = arounderSeleccionat->prevista; - } else { - accio = -1; - prevista = -1; - } - marcadorProcesor->Pintar(font1, accio, prevista); - - if (arounderSeleccionat != NULL) { - drawManager->Blit(arounderSeleccionat->X-3, arounderSeleccionat->Y-3, marca); - } -} - -void GameController::PintarCursor() { - drawManager->Blit(inputManager->mouseX, inputManager->mouseY, cursor); -} - -bool GameController::Pausa() { - - PintarEscena(); - drawManager->FadeOutGray(); - - bool salir = false; - bool salirJuego = false; - - while (!salir) { - drawManager->DrawFadedBack(); - drawManager->Print(136,80, font1, 7, 5, "PAUSA"); - drawManager->Blit(inputManager->mouseX, inputManager->mouseY, cursor); - drawManager->Flip(); - - inputManager->Update(); - if (inputManager->eixir) { - salir = true; - gameInfo->estado = ESTADO_SALIR; - } - - if (inputManager->Menu()) { - salirJuego = Menu(true); - salir = salirJuego; - } - - if (inputManager->Pausa() || inputManager->BotoPulsat(SDL_BUTTON_MIDDLE)) salir = true; - } - - drawManager->FadeInGray(); - - return salirJuego; -} - -bool GameController::Menu(const bool bypass) { - - if (!bypass) { - PintarEscena(); - drawManager->FadeOutGray(); - } - - bool salir = false; - bool salirJuego = false; - - while (!salir) { - drawManager->DrawFadedBack(); - drawManager->Blit(97, 52, menu); - drawManager->Print(129,60, font1, 7, 5, "CONTINUAR"); - drawManager->Print(129,71, font1, 7, 5, "REINICIAR"); - drawManager->Print(112,82, font1, 7, 5, "MENU PRINCIPAL"); - drawManager->Print(143,93, font1, 7, 5, "EIXIR"); - drawManager->Blit(inputManager->mouseX, inputManager->mouseY, cursor); - drawManager->Flip(); - - inputManager->Update(); - if (inputManager->eixir) { - salir = true; - gameInfo->estado = ESTADO_SALIR; - } - if (inputManager->Menu()) salir = true; - - if (inputManager->BotoPulsat(SDL_BUTTON_LEFT)) { - if (inputManager->mouseX >= 97 && inputManager->mouseX <= 223) { - if (inputManager->mouseY >= 60 && inputManager->mouseY <= 65) { - salir = true; - //salirJuego = true; - //gameInfo->fase++; - } - if (inputManager->mouseY >= 71 && inputManager->mouseY <= 76) { - salirJuego = true; - salir = true; - } - if (inputManager->mouseY >= 82 && inputManager->mouseY <= 87) { - salirJuego = true; - salir = true; - gameInfo->estado = ESTADO_MENU; - } - if (inputManager->mouseY >= 93 && inputManager->mouseY <= 98) { - salirJuego = true; - salir = true; - gameInfo->estado = ESTADO_SALIR; - } - } - } - } - - if (!bypass) { - drawManager->FadeInGray(); - } - - return salirJuego; -} - -void GameController::CarregarMapa(const int numMapa) -{ - int filesize = 0; - const char *buffer = file_getBufferFromResource("MAPES.BAL", filesize); - - int punter = numMapa * 212; - - int tileSet = buffer[punter++]; - punter++; - marcadorProcesor->orientacioInicial = buffer[punter++]; - marcadorProcesor->numArounders = buffer[punter++]; - marcadorProcesor->AroundersNec = buffer[punter++]; - - marcadorProcesor->numParar = buffer[punter++]; - marcadorProcesor->numCavar = buffer[punter++]; - marcadorProcesor->numEscalar = buffer[punter++]; - marcadorProcesor->numPerforar = buffer[punter++]; - marcadorProcesor->numEscalera = buffer[punter++]; - marcadorProcesor->numPasarela = buffer[punter++]; - marcadorProcesor->numCorda = buffer[punter++]; - - SDL_Surface *tiles = drawManager->LoadBitmap("tiles.gif", true); - mapa = drawManager->LoadBitmap("black.gif", true); - - unsigned char tileActual; - SDL_Rect clip; - clip.w = 16; - clip.h = 16; - - for (int x=0; x<20; x++) { - for (int y=0; y<10; y++) { - tileActual = buffer[punter++]; - switch (tileActual) { - case 255: - break; - case 254: - xFinal = x; - yFinal = y; - break; - case 253: - xInicial = x; - yInicial = y; - break; - default: - clip.x = tileActual*16; - clip.y = tileSet*16; - drawManager->apply_surface(x*16, y*16, tiles, mapa, &clip); - break; - } - } - } - - SDL_FreeSurface(tiles); - SDL_Surface *marcador = drawManager->LoadBitmap("marcador.gif", false); - drawManager->apply_surface(0, 165, marcador, mapa); - SDL_FreeSurface(marcador); - - drawManager->Print(188,188, font1, 7, 5, formatejar(gameInfo->fase+1), mapa); - - drawManager->Print(7,188, font1, 7, 5, "XX", mapa); - drawManager->Print(135,188, font1, 7, 5, "XX", mapa); - drawManager->Print(151,188, font1, 7, 5, "XX", mapa); - - drawManager->Print(224,171, font1, 7, 5, "ACTIUS", mapa); - drawManager->Print(224,177, font1, 7, 5, "TOTAL", mapa); - drawManager->Print(224,183, font1, 7, 5, "NECESSARIS", mapa); - drawManager->Print(224,189, font1, 7, 5, "ARRIVATS", mapa); - -} - - -void GameController::Finalize(void) -{ - SDL_FreeSurface(font1); - SDL_FreeSurface(mapa); - SDL_FreeSurface(fondo); - SDL_FreeSurface(marca); - SDL_FreeSurface(sprites); - SDL_FreeSurface(cursor); - SDL_FreeSurface(puerta); - SDL_FreeSurface(menu); - delete aiguaProcesor; - delete marcadorProcesor; - - if (primerArounder != NULL) { - while (primerArounder->siguiente != NULL) { - delete primerArounder->siguiente; - } - delete primerArounder; - } -} - -const char *GameController::formatejar(const int numero) { - char *resultat; - resultat = (char *) malloc(3); - - if (numero > 9) { - resultat[0] = (numero / 10) + 48; - resultat[1] = (numero % 10) + 48; - } else { - resultat[0] = 48; - resultat[1] = (numero % 10) + 48; - } - - resultat[2] = '\0'; - - return resultat; -} diff --git a/GameController.h b/GameController.h deleted file mode 100644 index bc1956a..0000000 --- a/GameController.h +++ /dev/null @@ -1,57 +0,0 @@ -#pragma once -#include -#include "SDL2/SDL.h" -#include "GameInfo.h" -#include "DrawManager.h" -#include "InputManager.h" -#include "MusicManager.h" -#include "AiguaProcesor.h" -#include "MarcadorProcesor.h" -#include "ArounderProcesor.h" - -class GameController -{ -public: - GameController(DrawManager *p_drawManager, InputManager *p_inputManager); - ~GameController(); - - bool Init(); - void Go(GameInfo *pGameInfo); - void Finalize(void); - -private: - DrawManager *drawManager; - InputManager *inputManager; - AiguaProcesor *aiguaProcesor; - MarcadorProcesor *marcadorProcesor; - - ArounderProcesor *primerArounder; - ArounderProcesor *arounderSeleccionat; - - SDL_Surface *mapa; - SDL_Surface *fondo; - SDL_Surface *sprites; - SDL_Surface *puerta; - SDL_Surface *font1; - SDL_Surface *cursor; - SDL_Surface *marca; - SDL_Surface *menu; - - GameInfo *gameInfo; - - int startTicks; - int currentTicks; - - int xInicial; - int yInicial; - int xFinal; - int yFinal; - - void PintarEscena(); - void PintarCursor(); - bool Pausa(); - bool Menu(const bool bypass = false); - void CarregarMapa(const int numMapa); - const char *formatejar(const int numero); - -}; diff --git a/GameInfo.cpp b/GameInfo.cpp deleted file mode 100644 index 7706688..0000000 --- a/GameInfo.cpp +++ /dev/null @@ -1,11 +0,0 @@ -#include "GameInfo.h" -#include "const.h" - -GameInfo::GameInfo(int pModeGrafic) { - fase = -1; - estado = ESTADO_SEQUENCIA; - modeGrafic = pModeGrafic; -} - -GameInfo::~GameInfo(void) { -} diff --git a/GameInfo.h b/GameInfo.h deleted file mode 100644 index 6f1782c..0000000 --- a/GameInfo.h +++ /dev/null @@ -1,14 +0,0 @@ -#pragma once - -class GameInfo -{ -public: - GameInfo(int pModeGrafic); - ~GameInfo(void); - - int fase; - int puntuacion; - int vidas; - int estado; - int modeGrafic; -}; diff --git a/InputManager.cpp b/InputManager.cpp deleted file mode 100644 index eb78803..0000000 --- a/InputManager.cpp +++ /dev/null @@ -1,187 +0,0 @@ -/* - * InputManager.cpp - * Arounders - * - * Created by Raimon Zamora on 21/02/09. - * Copyright 2009 __MyCompanyName__. All rights reserved. - * - */ - -#include "InputManager.h" -#include "const.h" - -InputManager::InputManager(GameInfo *pGameInfo) { - gameInfo = pGameInfo; - - eixir = false; - - mouseX = 0; - mouseY = 0; - - mouseButtonLeft = false; - mouseButtonRight = false; - mouseButtonMiddle = false; - - oldMouseButtonLeft = false; - oldMouseButtonRight = false; - oldMouseButtonMiddle = false; - - pausaPulsada = false; - menuPulsat = false; - -} - -InputManager::~InputManager(void) { - -} - -void InputManager::Update() { - keystates = SDL_GetKeyboardState( NULL ); - - teclaSoltada = false; - pausaPulsada = false; - menuPulsat = false; - - while ( SDL_PollEvent( &event ) ) { - if ( event.type == SDL_QUIT ) eixir = true; - if( event.type == SDL_MOUSEMOTION ) { - mouseX = event.motion.x; - mouseY = event.motion.y; - if (gameInfo->modeGrafic == MODE_ZOOMX2) { - mouseX = mouseX>>1; - mouseY = mouseY>>1; - } - } - if( event.type == SDL_MOUSEBUTTONDOWN ) { - mouseX = event.button.x; - mouseY = event.button.y; - if (gameInfo->modeGrafic == MODE_ZOOMX2) { - mouseX = mouseX>>1; - mouseY = mouseY>>1; - } - if (event.button.button == SDL_BUTTON_LEFT) { - oldMouseButtonLeft = mouseButtonLeft; - mouseButtonLeft = true; - } - if (event.button.button == SDL_BUTTON_MIDDLE) { - oldMouseButtonMiddle = mouseButtonMiddle; - mouseButtonMiddle = true; - } - if (event.button.button == SDL_BUTTON_RIGHT) { - oldMouseButtonRight = mouseButtonRight; - mouseButtonRight = true; - } - } - if( event.type == SDL_MOUSEBUTTONUP ) { - if (event.button.button == SDL_BUTTON_LEFT) { - oldMouseButtonLeft = mouseButtonLeft; - mouseButtonLeft = false; - } - if (event.button.button == SDL_BUTTON_MIDDLE) { - oldMouseButtonMiddle = mouseButtonMiddle; - mouseButtonMiddle = false; - } - if (event.button.button == SDL_BUTTON_RIGHT) { - oldMouseButtonRight = mouseButtonRight; - mouseButtonRight = false; - } - } - if( event.type == SDL_KEYDOWN ) { - cualquierTecla = true; - } else { - cualquierTecla = false; - } - - if( event.type == SDL_KEYUP ) { - teclaSoltada = true; - pausaPulsada = (event.key.keysym.sym == SDLK_p); - menuPulsat = (event.key.keysym.sym == SDLK_ESCAPE); - } - - if ( event.type == SDL_WINDOWEVENT ) { - if (event.window.event == SDL_WINDOWEVENT_FOCUS_GAINED) finestraActiva = true; - if (event.window.event == SDL_WINDOWEVENT_FOCUS_LOST) finestraActiva = false; - } - } -} - -bool InputManager::BotoPulsat(int boto) { - switch (boto) { - case SDL_BUTTON_LEFT: - if (mouseButtonLeft && !oldMouseButtonLeft) { - oldMouseButtonLeft = true; - return true; - } else { - return false; - } - break; - case SDL_BUTTON_MIDDLE: - if (mouseButtonMiddle && !oldMouseButtonMiddle) { - oldMouseButtonMiddle = true; - return true; - } else { - return false; - } - break; - case SDL_BUTTON_RIGHT: - if (mouseButtonRight && !oldMouseButtonRight) { - oldMouseButtonRight = true; - return true; - } else { - return false; - } - break; - default: - return false; - break; - } -} - -bool InputManager::BotoSoltat(int boto) { - switch (boto) { - case SDL_BUTTON_LEFT: - if (!mouseButtonLeft && oldMouseButtonLeft) { - oldMouseButtonLeft = false; - return true; - } else { - return false; - } - break; - case SDL_BUTTON_MIDDLE: - if (!mouseButtonMiddle && oldMouseButtonMiddle) { - oldMouseButtonMiddle = false; - return true; - } else { - return false; - } - break; - case SDL_BUTTON_RIGHT: - if (!mouseButtonRight && oldMouseButtonRight) { - oldMouseButtonRight = false; - return true; - } else { - return false; - } - break; - default: - return false; - break; - } -} - -bool InputManager::TeclaPulsada(int tecla) { - if (keystates[tecla] != 0) { - return true; - } else { - return false; - } -} - -bool InputManager::Pausa() { - return pausaPulsada; -} - -bool InputManager::Menu() { - return menuPulsat; -} - diff --git a/InputManager.h b/InputManager.h deleted file mode 100644 index f26acbf..0000000 --- a/InputManager.h +++ /dev/null @@ -1,41 +0,0 @@ -#pragma once -#include "SDL2/SDL.h" -#include "GameInfo.h" - -class InputManager -{ -public: - InputManager(GameInfo *pGameInfo); - ~InputManager(void); - - void Update(); - bool Pausa(); - bool EixirPausa(); - bool Menu(); - bool BotoPulsat(int boto); - bool BotoSoltat(int boto); - - bool TeclaPulsada(int tecla); - - bool cualquierTecla; - bool teclaSoltada; - bool eixir; - int mouseX; - int mouseY; - bool mouseButtonLeft; - bool mouseButtonRight; - bool mouseButtonMiddle; - bool pausaPulsada; - bool menuPulsat; - bool finestraActiva; - -private: - const Uint8 *keystates; - GameInfo *gameInfo; - - SDL_Event event; - bool oldMouseButtonLeft; - bool oldMouseButtonRight; - bool oldMouseButtonMiddle; - -}; \ No newline at end of file diff --git a/MarcadorProcesor.cpp b/MarcadorProcesor.cpp deleted file mode 100644 index 4e4500d..0000000 --- a/MarcadorProcesor.cpp +++ /dev/null @@ -1,110 +0,0 @@ -#include "MarcadorProcesor.h" -#include "const.h" - -MarcadorProcesor::MarcadorProcesor(DrawManager *pDrawManager) -{ - drawManager = pDrawManager; - - numAroundersArrivats = 0; - numAroundersEixits = 0; - numAroundersMorts = 0; - - boto = drawManager->LoadBitmap("boto.gif", true); - - velocitat = 70; - contador = SDL_GetTicks(); -} - -MarcadorProcesor::~MarcadorProcesor(void) -{ - SDL_FreeSurface(boto); -} - -void MarcadorProcesor::Pintar(SDL_Surface *font, int accio, int prevista) { - drawManager->Print(23,188, font, 7, 5, formatejar(numParar)); - drawManager->Print(39,188, font, 7, 5, formatejar(numCavar)); - drawManager->Print(55,188, font, 7, 5, formatejar(numEscalar)); - drawManager->Print(71,188, font, 7, 5, formatejar(numPerforar)); - drawManager->Print(87,188, font, 7, 5, formatejar(numEscalera)); - drawManager->Print(103,188, font, 7, 5, formatejar(numPasarela)); - drawManager->Print(119,188, font, 7, 5, formatejar(numCorda)); - - drawManager->Print(301,171, font, 7, 5, formatejar(numAroundersEixits-numAroundersArrivats-numAroundersMorts)); - drawManager->Print(301,177, font, 7, 5, formatejar(numArounders)); - drawManager->Print(301,183, font, 7, 5, formatejar(AroundersNec)); - drawManager->Print(301,189, font, 7, 5, formatejar(numAroundersArrivats)); - - if (accio >= 10) accio = 0; - if (prevista >= 10) prevista = 0; - drawManager->Blit((accio*16)+5, 171, boto); - - if (prevista != accio && prevista != 0) { - if ((SDL_GetTicks()-contador) <= 200) { - drawManager->Blit((prevista*16)+5, 171, boto); - } else { - if ((SDL_GetTicks()-contador) >= 400) contador = SDL_GetTicks(); - } - } - - if (velocitat < 70) { - drawManager->Blit((ACCIO_SUICIDI2*16)+5, 171, boto); - } -} - -int MarcadorProcesor::Procesar(int mouseX, int mouseY) { - int accio = -1; - - if (mouseY >= 171 && mouseY <= 187 && mouseX >= 5 && mouseX <= 165) { - accio = (mouseX-5) / 16; - - switch(accio) { - case ACCIO_PARAR: - if (numParar == 0) accio = -1; - break; - case ACCIO_CAVAR: - if (numCavar == 0) accio = -1; - break; - case ACCIO_ESCALAR: - if (numEscalar == 0) accio = -1; - break; - case ACCIO_PERFORAR: - if (numPerforar == 0) accio = -1; - break; - case ACCIO_ESCALERA: - if (numEscalera == 0) accio = -1; - break; - case ACCIO_PASARELA: - if (numPasarela == 0) accio = -1; - break; - case ACCIO_CORDA: - if (numCorda == 0) accio = -1; - break; - case ACCIO_SUICIDI2: - if (velocitat == 70) { - velocitat = 10; - } else { - velocitat = 70; - } - accio = -1; - break; - } - } - return accio; -} - -char *MarcadorProcesor::formatejar(int numero) { - char *resultat; - resultat = (char *) malloc(3); - - if (numero > 9) { - resultat[0] = (numero / 10) + 48; - resultat[1] = (numero % 10) + 48; - } else { - resultat[0] = 48; - resultat[1] = (numero % 10) + 48; - } - - resultat[2] = '\0'; - - return resultat; -} diff --git a/MarcadorProcesor.h b/MarcadorProcesor.h deleted file mode 100644 index 3b6f360..0000000 --- a/MarcadorProcesor.h +++ /dev/null @@ -1,38 +0,0 @@ -#pragma once -#include "DrawManager.h" - -class MarcadorProcesor -{ -public: - MarcadorProcesor(DrawManager *pDrawManager); - ~MarcadorProcesor(void); - - void Pintar(SDL_Surface *font, int accio, int prevista); - int Procesar(int mouseX, int mouseY); - - int numArounders; - int AroundersNec; - int numAroundersArrivats; - int numAroundersEixits; - int numAroundersMorts; - int orientacioInicial; - - int numParar; - int numCavar; - int numEscalar; - int numPerforar; - int numEscalera; - int numPasarela; - int numCorda; - - int velocitat; - -private: - char *formatejar(int numero); - - DrawManager *drawManager; - SDL_Surface *boto; - - int contador; - -}; diff --git a/MenuController.cpp b/MenuController.cpp deleted file mode 100644 index e4f3874..0000000 --- a/MenuController.cpp +++ /dev/null @@ -1,75 +0,0 @@ -#include "MenuController.h" -#include "const.h" - -MenuController::MenuController(DrawManager *p_drawManager, InputManager *p_inputManager) { - drawManager = p_drawManager; - inputManager = p_inputManager; -} - -MenuController::~MenuController(void) { -} - -bool MenuController::Init() { - fondo = drawManager->LoadBitmap("menuprin.gif"); - cursor = drawManager->LoadFont("cursor.gif"); - if (!music_sonant()) { - music_load("mus3.mp3"); - music_play(-1); - } - return true; -} - -void MenuController::Go(GameInfo *gameInfo) { - bool salir = false; - - if ( !Init() ) { salir = true; gameInfo->estado = ESTADO_SALIR; } - - drawManager->Blit(0,0, fondo); - drawManager->FadeIn(); - - while ( !salir ) { - inputManager->Update(); - - drawManager->Blit(0,0, fondo); - drawManager->Blit(inputManager->mouseX, inputManager->mouseY, cursor); - drawManager->Flip(); - - if (inputManager->eixir) { - gameInfo->estado = ESTADO_SALIR; - salir = true; - } - - if (inputManager->BotoPulsat(SDL_BUTTON_LEFT)) { - if (inputManager->mouseX >= 200 && - inputManager->mouseY >= 100 && - inputManager->mouseX <= 270 && - inputManager->mouseY <= 120 ) { - gameInfo->estado = ESTADO_SEQUENCIA; - gameInfo->fase = 0; - salir = true; - } - if (inputManager->mouseX >= 175 && - inputManager->mouseY >= 125 && - inputManager->mouseX <= 290 && - inputManager->mouseY <= 145 ) { - gameInfo->estado = ESTADO_PASSWORD; - gameInfo->fase = 0; - salir = true; - } - if (inputManager->mouseX >= 200 && - inputManager->mouseY >= 150 && - inputManager->mouseX <= 265 && - inputManager->mouseY <= 170 ) { - gameInfo->estado = ESTADO_SALIR; - salir = true; - } - } - } - if (gameInfo->estado == ESTADO_SALIR) music_fadeOut(); - drawManager->FadeOut(); -} - -void MenuController::Finalize(void) { - SDL_FreeSurface(fondo); - SDL_FreeSurface(cursor); -} diff --git a/MenuController.h b/MenuController.h deleted file mode 100644 index eb4d041..0000000 --- a/MenuController.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once -#include "SDL2/SDL.h" -#include "DrawManager.h" -#include "InputManager.h" -#include "MusicManager.h" -#include "GameInfo.h" - -class MenuController -{ -public: - MenuController(DrawManager *p_drawManager, InputManager *p_inputManager); - ~MenuController(void); - - bool Init(); - void Go(GameInfo *gameInfo); - void Finalize(void); - -private: - DrawManager *drawManager; - InputManager *inputManager; - - SDL_Surface *fondo; - SDL_Surface *cursor; -}; diff --git a/MortController.cpp b/MortController.cpp deleted file mode 100644 index 489e2bf..0000000 --- a/MortController.cpp +++ /dev/null @@ -1,71 +0,0 @@ -#include "MortController.h" -#include "const.h" - -MortController::MortController(DrawManager *p_drawManager, InputManager *p_inputManager) { - drawManager = p_drawManager; - inputManager = p_inputManager; -} - -MortController::~MortController(void) { -} - -bool MortController::Init() { - fondo = drawManager->LoadBitmap("mort.gif"); - cursor = drawManager->LoadFont("cursor.gif"); - music_load( "mus5.mp3"); - - return true; -} - -void MortController::Go(GameInfo *gameInfo) { - bool salir = false; - - if ( !Init() ) { salir = true; gameInfo->estado = ESTADO_SALIR; } - - music_play(-1); - drawManager->Blit(0,0, fondo); - drawManager->FadeIn(); - - while ( !salir ) { - inputManager->Update(); - - drawManager->Blit(0,0, fondo); - drawManager->Blit(inputManager->mouseX, inputManager->mouseY, cursor); - drawManager->Flip(); - - if (inputManager->eixir) { - gameInfo->estado = ESTADO_SALIR; - salir = true; - } - - if (inputManager->BotoPulsat(SDL_BUTTON_LEFT)) { - if (inputManager->mouseX >= 100 && - inputManager->mouseY >= 50 && - inputManager->mouseX <= 210 && - inputManager->mouseY <= 70 ) { - gameInfo->estado = ESTADO_PREFASE; - salir = true; - } - if (inputManager->mouseX >= 120 && - inputManager->mouseY >= 72 && - inputManager->mouseX <= 190 && - inputManager->mouseY <= 95 ) { - gameInfo->estado = ESTADO_MENU; - salir = true; - } - if (inputManager->mouseX >= 120 && - inputManager->mouseY >= 95 && - inputManager->mouseX <= 190 && - inputManager->mouseY <= 115 ) { - gameInfo->estado = ESTADO_SALIR; - salir = true; - } - } - } - drawManager->FadeOut(); -} - -void MortController::Finalize(void) { - SDL_FreeSurface(fondo); - SDL_FreeSurface(cursor); -} diff --git a/MortController.h b/MortController.h deleted file mode 100644 index 2151714..0000000 --- a/MortController.h +++ /dev/null @@ -1,24 +0,0 @@ -#pragma once -#include "SDL2/SDL.h" -#include "DrawManager.h" -#include "InputManager.h" -#include "MusicManager.h" -#include "GameInfo.h" - -class MortController -{ -public: - MortController(DrawManager *p_drawManager, InputManager *p_inputManager); - ~MortController(void); - - bool Init(); - void Go(GameInfo *gameInfo); - void Finalize(void); - -private: - DrawManager *drawManager; - InputManager *inputManager; - - SDL_Surface *fondo; - SDL_Surface *cursor; -}; diff --git a/MusicManager.cpp b/MusicManager.cpp deleted file mode 100644 index f8c96e6..0000000 --- a/MusicManager.cpp +++ /dev/null @@ -1,43 +0,0 @@ -#include "MusicManager.h" -#include "const.h" -#include "jail_audio.h" -#include "fileManager.h" - -JA_Music music = NULL; //= JA_LoadMusic("intro2.ogg"); - -void music_init() { - JA_Init(48000, AUDIO_S16, 2); - //return Mix_OpenAudio(MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, 2, 1024); -} - -void music_quit() { - if (music != NULL) JA_DeleteMusic(music); -} - -void music_load(const char *musicfilename) { - if (music != NULL) { - JA_StopMusic(); - JA_DeleteMusic(music); - } - int filesize = 0; - const char *buffer = file_getBufferFromResource(musicfilename, filesize); - - music = JA_LoadMusic((Uint8*)buffer, filesize); - //free(buffer); -} - -void music_play(const int loops) { - JA_PlayMusic(music, loops); -} - -void music_pause() { - JA_PauseMusic(); -} - -void music_fadeOut() { - JA_StopMusic(); -} - -const bool music_sonant() { - return JA_GetMusicState() == JA_MUSIC_PLAYING; -} \ No newline at end of file diff --git a/MusicManager.h b/MusicManager.h deleted file mode 100644 index ac0b605..0000000 --- a/MusicManager.h +++ /dev/null @@ -1,9 +0,0 @@ -#pragma once - -void music_init(); -void music_quit(); -void music_load(const char *musicfilename); -void music_play(const int loops); -void music_pause(); -void music_fadeOut(); -const bool music_sonant(); diff --git a/PasswordController.cpp b/PasswordController.cpp deleted file mode 100644 index aa4af5a..0000000 --- a/PasswordController.cpp +++ /dev/null @@ -1,115 +0,0 @@ -#include "PasswordController.h" -#include "const.h" -#include "fileManager.h" - -PasswordController::PasswordController(DrawManager *p_drawManager, InputManager *p_inputManager) { - drawManager = p_drawManager; - inputManager = p_inputManager; -} - -PasswordController::~PasswordController(void) { -} - -bool PasswordController::Init() { - fondo = drawManager->LoadBitmap("prefase.gif"); - cursor = drawManager->LoadFont("cursor.gif"); - font = drawManager->LoadFont("fuente1.gif"); - - return true; -} - -void PasswordController::Go(GameInfo *gameInfo) { - bool salir = false; - char tecla = -1; - char password[11] = " "; - char indice = 0; - - if ( !Init() ) { salir = true; gameInfo->estado = ESTADO_SALIR; } - - drawManager->Blit(0,0, fondo); - drawManager->Print(95, 80, font, 7, 5, "ESCRIU EL PASSWORD"); - drawManager->FadeIn(); - - while ( !salir ) { - inputManager->Update(); - - drawManager->Blit(0,0, fondo); - drawManager->Print(95, 80, font, 7, 5, "ESCRIU EL PASSWORD"); - drawManager->Print(123, 140, font, 7, 5, password); - drawManager->Flip(); - - if (inputManager->eixir) { - gameInfo->estado = ESTADO_SALIR; - salir = true; - } - - if (inputManager->cualquierTecla && tecla == -1) { - if (inputManager->TeclaPulsada(SDLK_BACKSPACE) && indice > 0) { - indice--; - password[indice] = 32; - tecla = SDLK_BACKSPACE; - } else { - tecla = ObtenerTecla(); - if (tecla != -1) { - password[indice] = tecla; - indice++; - if (indice == 10) { - gameInfo->fase = ObtenerFaseDePassword(password); - gameInfo->estado = ESTADO_SEQUENCIA; - salir = true; - } - } - } - } - if (inputManager->teclaSoltada) { - tecla = -1; - } - } - drawManager->FadeOut(); -} - -char PasswordController::ObtenerTecla() { - char tecla = -1; - for (int i=48; i<=57; i++) { - if (inputManager->TeclaPulsada(i)) tecla = i; - } - for (int i=97; i<=122; i++) { - if (inputManager->TeclaPulsada(i)) tecla = i-32; - } - return tecla; -} - -int PasswordController::ObtenerFaseDePassword(char *password) { - int filesize = 0; - const char *buffer = file_getBufferFromResource("offsets.bal", filesize); - - int punter = 0; - - bool salir = false; - char passFile[11] = " "; - int numPassword = 0; - - while ( numPassword < 30 && !salir ) { - for (int i=0;i<10;i++) { - punter++; - passFile[i] = buffer[punter] - (101+i); - } - punter++; - - salir = true; - for (int i=0;i<10;i++) { - if (passFile[i] != password[i]) salir = false; - } - numPassword++; - } - - if (!salir) numPassword = 0; - - return numPassword; -} - -void PasswordController::Finalize(void) { - SDL_FreeSurface(fondo); - SDL_FreeSurface(cursor); - SDL_FreeSurface(font); -} diff --git a/PasswordController.h b/PasswordController.h deleted file mode 100644 index 0804516..0000000 --- a/PasswordController.h +++ /dev/null @@ -1,29 +0,0 @@ -#pragma once -#include "SDL2/SDL.h" -#include "DrawManager.h" -#include "InputManager.h" -#include "MusicManager.h" -#include "GameInfo.h" - -class PasswordController -{ -public: - PasswordController(DrawManager *p_drawManager, InputManager *p_inputManager); - ~PasswordController(void); - - bool Init(); - void Go(GameInfo *gameInfo); - void Finalize(void); - -private: - char ObtenerTecla(); - int ObtenerFaseDePassword(char *password); - - DrawManager *drawManager; - InputManager *inputManager; - - SDL_Surface *fondo; - SDL_Surface *cursor; - SDL_Surface *font; - -}; diff --git a/PostfaseController.cpp b/PostfaseController.cpp deleted file mode 100644 index 50a39ed..0000000 --- a/PostfaseController.cpp +++ /dev/null @@ -1,136 +0,0 @@ -#include "PostfaseController.h" -#include "const.h" -#include "fileManager.h" - -PostfaseController::PostfaseController(DrawManager *p_drawManager, InputManager *p_inputManager) { - drawManager = p_drawManager; - inputManager = p_inputManager; -} - -PostfaseController::~PostfaseController(void) { -} - -bool PostfaseController::Init() { - fondo = drawManager->LoadBitmap("postfase.gif"); - font = drawManager->LoadFont("fuente2.gif", drawManager->color_rojo); - - return true; -} - -void PostfaseController::Go(GameInfo *gameInfo) { - bool salir = false; - - if (gameInfo->fase == 30) { - gameInfo->estado = ESTADO_SEQUENCIA; - return; - } else { - music_load( "mus3.mp3"); - music_play(-1); - } - - if (gameInfo->fase % 5 == 0 && gameInfo->fase != 30) { - salir = MostrarVictoria(gameInfo); - } - - if (salir) { - gameInfo->estado = ESTADO_SALIR; - return; - } - - char *password = ObtenerPasswordDeFase(gameInfo->fase); - if ( !Init() ) { salir = true; gameInfo->estado = ESTADO_SALIR; } - - drawManager->Blit(0,0, fondo); - drawManager->Print(175, 166, font, 7, 6, password); - drawManager->FadeIn(); - - while ( !salir ) { - inputManager->Update(); - - drawManager->Blit(0,0, fondo); - drawManager->Print(175, 166, font, 7, 6, password); - drawManager->Flip(); - - if (inputManager->eixir) { - gameInfo->estado = ESTADO_SALIR; - salir = true; - } - - if (inputManager->cualquierTecla || inputManager->BotoPulsat(SDL_BUTTON_LEFT)) { - gameInfo->estado = ESTADO_SEQUENCIA; - salir = true; - } - } - drawManager->FadeOut(); -} - -char *PostfaseController::ObtenerPasswordDeFase(int fase) { - int filesize = 0; - const char *buffer = file_getBufferFromResource("offsets.bal", filesize); - - int punter = (fase-1)*11; - - char *passFile = (char *) malloc(11); - - for (int i=0;i<10;i++) { - punter++; - passFile[i] = ((Uint8)buffer[punter]) - (101+i); - } - - return passFile; -} - -bool PostfaseController::MostrarVictoria(GameInfo *gameInfo) { - bool salir = false; - - switch (gameInfo->fase) { - case 5: - fondo = drawManager->LoadBitmap("final01.GIF"); - break; - case 10: - fondo = drawManager->LoadBitmap("final02.GIF"); - break; - case 15: - fondo = drawManager->LoadBitmap("final03.GIF"); - break; - case 20: - fondo = drawManager->LoadBitmap("final04.GIF"); - break; - case 25: - fondo = drawManager->LoadBitmap("final05.GIF"); - break; - } - - drawManager->Blit(0,0, fondo); - drawManager->FadeIn(); - - while ( !salir ) { - inputManager->Update(); - - drawManager->Blit(0,0, fondo); - drawManager->Flip(); - - if (inputManager->eixir) { - gameInfo->estado = ESTADO_SALIR; - salir = true; - } - - if (inputManager->cualquierTecla || inputManager->BotoPulsat(SDL_BUTTON_LEFT)) { - gameInfo->estado = ESTADO_SEQUENCIA; - salir = true; - } - } - drawManager->FadeOut(); - - if (gameInfo->estado == ESTADO_SALIR) { - return true; - } else { - return false; - } -} - -void PostfaseController::Finalize(void) { - SDL_FreeSurface(fondo); - SDL_FreeSurface(font); -} - diff --git a/PostfaseController.h b/PostfaseController.h deleted file mode 100644 index bb86f2b..0000000 --- a/PostfaseController.h +++ /dev/null @@ -1,27 +0,0 @@ -#pragma once -#include "SDL2/SDL.h" -#include "DrawManager.h" -#include "InputManager.h" -#include "MusicManager.h" -#include "GameInfo.h" - -class PostfaseController -{ -public: - PostfaseController(DrawManager *p_drawManager, InputManager *p_inputManager); - ~PostfaseController(void); - - bool Init(); - void Go(GameInfo *gameInfo); - void Finalize(void); - -private: - char *ObtenerPasswordDeFase(int fase); - bool MostrarVictoria(GameInfo *gameInfo); - - DrawManager *drawManager; - InputManager *inputManager; - - SDL_Surface *fondo; - SDL_Surface *font; -}; diff --git a/PrefaseController.cpp b/PrefaseController.cpp deleted file mode 100644 index 70a7dc0..0000000 --- a/PrefaseController.cpp +++ /dev/null @@ -1,104 +0,0 @@ -#include "PrefaseController.h" -#include "const.h" -#include "fileManager.h" - -PrefaseController::PrefaseController(DrawManager *p_drawManager, InputManager *p_inputManager) { - drawManager = p_drawManager; - inputManager = p_inputManager; -} - -PrefaseController::~PrefaseController(void) { -} - -bool PrefaseController::Init() { - fondo = drawManager->LoadBitmap("prefase.gif"); - cursor = drawManager->LoadFont("cursor.gif"); - font = drawManager->LoadFont("fuente1.gif"); - - return true; -} - -void PrefaseController::Go(GameInfo *gameInfo) { - bool salir = false; - - if ( !Init() ) { salir = true; gameInfo->estado = ESTADO_SALIR; } - - CarregarMapa(gameInfo->fase); - - drawManager->Blit(0,0, fondo); - drawManager->Print(130, 60, font, 7, 5, "NIVELL"); - drawManager->Print(179, 60, font, 7, 5, formatejar(gameInfo->fase+1)); - - drawManager->Print(80, 100, font, 7, 5, formatejar(numArounders)); - drawManager->Print(101, 100, font, 7, 5, "AROUNDERS DISPONIBLES"); - - drawManager->Print(80, 110, font, 7, 5, formatejar(aroundersNec)); - drawManager->Print(101, 110, font, 7, 5, "AROUNDERS NECESSARIS"); - drawManager->FadeIn(); - - while ( !salir ) { - inputManager->Update(); - - drawManager->Blit(0,0, fondo); - - drawManager->Print(130, 60, font, 7, 5, "NIVELL"); - drawManager->Print(179, 60, font, 7, 5, formatejar(gameInfo->fase+1)); - - drawManager->Print(80, 100, font, 7, 5, formatejar(numArounders)); - drawManager->Print(101, 100, font, 7, 5, "AROUNDERS DISPONIBLES"); - - drawManager->Print(80, 110, font, 7, 5, formatejar(aroundersNec)); - drawManager->Print(101, 110, font, 7, 5, "AROUNDERS NECESSARIS"); - - drawManager->Blit(inputManager->mouseX, inputManager->mouseY, cursor); - drawManager->Flip(); - - if (inputManager->eixir) { - gameInfo->estado = ESTADO_SALIR; - salir = true; - } - - if (inputManager->cualquierTecla || inputManager->BotoPulsat(SDL_BUTTON_LEFT)) { - gameInfo->estado = ESTADO_JUEGO; - salir = true; - } - } - music_fadeOut(); - drawManager->FadeOut(); -} - -void PrefaseController::Finalize(void) { - SDL_FreeSurface(fondo); - SDL_FreeSurface(cursor); - SDL_FreeSurface(font); -} - -void PrefaseController::CarregarMapa(const int numMapa) -{ - int filesize = 0; - const char *buffer = file_getBufferFromResource("MAPES.BAL", filesize); - - int punter = numMapa * 212; - - int tileSet = buffer[punter++]; - punter += 2; - numArounders = buffer[punter++]; - aroundersNec = buffer[punter++]; -} - -const char *PrefaseController::formatejar(const int numero) { - char *resultat; - resultat = (char *) malloc(3); - - if (numero > 9) { - resultat[0] = (numero / 10) + 48; - resultat[1] = (numero % 10) + 48; - } else { - resultat[0] = 48; - resultat[1] = (numero % 10) + 48; - } - - resultat[2] = '\0'; - - return resultat; -} diff --git a/PrefaseController.h b/PrefaseController.h deleted file mode 100644 index 64feacf..0000000 --- a/PrefaseController.h +++ /dev/null @@ -1,31 +0,0 @@ -#pragma once -#include "SDL2/SDL.h" -#include "DrawManager.h" -#include "InputManager.h" -#include "MusicManager.h" -#include "GameInfo.h" - -class PrefaseController -{ -public: - PrefaseController(DrawManager *p_drawManager, InputManager *p_inputManager); - ~PrefaseController(void); - - bool Init(); - void Go(GameInfo *gameInfo); - void Finalize(void); - -private: - const char *formatejar(const int numero); - void CarregarMapa(const int numMapa); - - DrawManager *drawManager; - InputManager *inputManager; - - SDL_Surface *fondo; - SDL_Surface *cursor; - SDL_Surface *font; - - int numArounders; - int aroundersNec; -}; diff --git a/SequenceController.cpp b/SequenceController.cpp deleted file mode 100644 index 2b9c84b..0000000 --- a/SequenceController.cpp +++ /dev/null @@ -1,213 +0,0 @@ -#include "SequenceController.h" -#include "const.h" -#include "fileManager.h" - -SequenceController::SequenceController(DrawManager *p_drawManager, InputManager *p_inputManager) { - drawManager = p_drawManager; - inputManager = p_inputManager; -} - -SequenceController::~SequenceController(void) { -} - -bool SequenceController::Init() { - return true; -} - -void SequenceController::Go(GameInfo *pGameInfo) { - bool salir = false; - int pantalla = 0; - const char *file; - int filesize; - - gameInfo = pGameInfo; - - if (gameInfo->fase % 5 == 0 || gameInfo->fase < 0) { - switch (gameInfo->fase) { - case -1: - file = file_getBufferFromResource("seqIN.seq", filesize); - break; - case 0: - file = file_getBufferFromResource("seq00.seq", filesize); - break; - case 5: - file = file_getBufferFromResource("seq05.seq", filesize); - break; - case 10: - file = file_getBufferFromResource("seq10.seq", filesize); - break; - case 15: - file = file_getBufferFromResource("seq15.seq", filesize); - break; - case 20: - file = file_getBufferFromResource("seq20.seq", filesize); - break; - case 25: - file = file_getBufferFromResource("seq25.seq", filesize); - break; - case 30: - file = file_getBufferFromResource("seq30.seq", filesize); - break; - } - ProcesarSecuencia(file); - } - //drawManager->FadeOut(); - - if (gameInfo->estado != ESTADO_SALIR) { - gameInfo->estado = ESTADO_PREFASE; - if (gameInfo->fase == -1) gameInfo->estado = ESTADO_MENU; - if (gameInfo->fase == 30) gameInfo->estado = ESTADO_MENU; - } -} - -void SequenceController::ProcesarSecuencia(const char *file) { - char numDiapositives = (char)file[0]; - int punter = 1; - char *filename; - char *texto; - char tamanyCadena; - Uint16 x; - Uint16 y; - Uint16 temps; - char colorTemp; - Uint32 color; - bool salir = false; - - for (int j=0; jcolor_blanco; - break; - case 1: - color = drawManager->color_rojo; - break; - case 2: - color = drawManager->color_verde; - break; - case 3: - color = drawManager->color_azul; - break; - } - tamanyCadena = file[punter++]; - texto = (char *) malloc(tamanyCadena + 1); - for (int i=0; iUpdate(); - - if (inputManager->eixir) { - gameInfo->estado = ESTADO_SALIR; - salir = true; - seguirIntro = false; - } - - if (inputManager->cualquierTecla || inputManager->BotoPulsat(SDL_BUTTON_LEFT)) { - salir = true; - if (inputManager->TeclaPulsada(SDLK_ESCAPE)) seguirIntro = false; - } - - if (SDL_GetTicks()-startTicks > temps) { - salir = true; - } - } - return seguirIntro; -} - -void SequenceController::FadeIn(char *archivo) { - fondo = drawManager->LoadBitmap( archivo); - drawManager->Blit(0,0, fondo); - drawManager->FadeIn(); - SDL_FreeSurface(fondo); -} - -void SequenceController::Show(char *archivo) { - fondo = drawManager->LoadBitmap( archivo); - drawManager->Blit(0,0, fondo); - drawManager->Flip(); - SDL_FreeSurface(fondo); -} - -void SequenceController::Print(int x, int y, Uint32 color, char *texto) { - font = drawManager->LoadFont( "fuente2.gif", color); - drawManager->Print(x, y, font, 7, 6, texto); - drawManager->Flip(); - SDL_FreeSurface(font); -} - -void SequenceController::FadeOut() { - drawManager->FadeOut(); -} - -void SequenceController::FadeOutWithMusic() { - drawManager->FadeOut(); - music_fadeOut(); -} - -void SequenceController::Musica(char *archivo, int loop) { - music_load(archivo); - music_play(loop); -} - -void SequenceController::Finalize(void) { - -} diff --git a/SequenceController.h b/SequenceController.h deleted file mode 100644 index 3d502e0..0000000 --- a/SequenceController.h +++ /dev/null @@ -1,35 +0,0 @@ -#pragma once -#include "SDL2/SDL.h" -#include "DrawManager.h" -#include "InputManager.h" -#include "MusicManager.h" -#include "GameInfo.h" - -class SequenceController -{ -public: - SequenceController(DrawManager *p_drawManager, InputManager *p_inputManager); - ~SequenceController(void); - - bool Init(); - void Go(GameInfo *pGameInfo); - void Finalize(void); - -private: - void ProcesarSecuencia(const char *file); - - bool Esperar(Uint32 temps); - void FadeIn(char *archivo); - void Show(char *archivo); - void Print(int x, int y, Uint32 color, char *texto); - void Musica(char *archivo, int loop); - void FadeOut(); - void FadeOutWithMusic(); - - DrawManager *drawManager; - InputManager *inputManager; - GameInfo *gameInfo; - - SDL_Surface *fondo; - SDL_Surface *font; -}; diff --git a/const.h b/const.h deleted file mode 100644 index e7b83d2..0000000 --- a/const.h +++ /dev/null @@ -1,45 +0,0 @@ -#pragma once - -const int SCREEN_WIDTH = 320; -const int SCREEN_HEIGHT = 200; -const int SCREEN_BPP = 32; -const char APPLICATION_NAME[12] = "Arounders"; - -const int ESTADO_SALIR = 0; -const int ESTADO_INTRO = 1; -const int ESTADO_SEQUENCIA = 2; -const int ESTADO_MENU = 3; -const int ESTADO_PASSWORD = 4; -const int ESTADO_PREFASE = 5; -const int ESTADO_JUEGO = 6; -const int ESTADO_POSTFASE = 7; -const int ESTADO_MORT = 8; -const int ESTADO_CREDITS = 9; - -const int ACCIO_CAMINAR = 0; -const int ACCIO_PARAR = 1; -const int ACCIO_CAVAR = 2; -const int ACCIO_ESCALAR = 3; -const int ACCIO_PERFORAR = 4; -const int ACCIO_ESCALERA = 5; -const int ACCIO_PASARELA = 6; -const int ACCIO_CORDA = 7; -const int ACCIO_SUICIDI = 8; -const int ACCIO_SUICIDI2 = 9; -const int ACCIO_CAURE = 10; -const int ACCIO_PUJARCORDA = 11; -const int ACCIO_BAIXARCORDA = 12; -const int ACCIO_MORT = 13; - -const int DIAPO_ESPERAR = 0; -const int DIAPO_FADEIN = 1; -const int DIAPO_SHOW = 2; -const int DIAPO_PRINT = 3; -const int DIAPO_MUSICA = 4; -const int DIAPO_FADEOUT = 5; -const int DIAPO_FADEMUSIC = 6; - -const int MODE_NORMAL = 0; -const int MODE_ZOOMX2 = 1; -const int MODE_FULLSCREEN = 2; - diff --git a/data/MAPES.BAL b/data/MAPES.BAL deleted file mode 100644 index 7373588..0000000 Binary files a/data/MAPES.BAL and /dev/null differ diff --git a/fileManager.cpp b/fileManager.cpp deleted file mode 100644 index 4f6dd8f..0000000 --- a/fileManager.cpp +++ /dev/null @@ -1,100 +0,0 @@ -#include "fileManager.h" -#include -#include - -#pragma pack(push,1) - -struct DATA_Header { - char magic[4]; - Uint32 num_files; - Uint32 index_offset; -}; - -struct DATA_Info { - Uint32 offset; - Uint32 length; - char name[13]; -}; - -struct DATA_Index { - DATA_Info* file_info; -}; - -struct DATA_File { - DATA_Header header; - DATA_Index index; -}; - -#pragma pack(pop) - -static const char *resourceFileName = "data.jrf"; -static DATA_File *data_file = NULL; - -void file_setResourceFile(const char *p_resourceFileName) { - resourceFileName = p_resourceFileName; -} - -static void getDataFile() { - std::ifstream fd( resourceFileName, std::ios::in | std::ios::binary ); - - if( fd.fail() ) { - perror("No s'ha pogut obrir l'arxiu de recursos"); - exit(1); - } - - data_file = (DATA_File*)malloc( sizeof( DATA_File ) ); - - fd.read( (char*)&data_file->header, sizeof( DATA_Header ) ); - - fd.seekg( data_file->header.index_offset ); - - data_file->index.file_info = (DATA_Info*)malloc( data_file->header.num_files * sizeof( DATA_Info ) ); - - fd.read( (char*)data_file->index.file_info, data_file->header.num_files * sizeof( DATA_Info ) ); - - fd.close(); -} - -const char *file_setBufferFromResource(const char *resourcename, int& filesize) { - - if( data_file == NULL ) { - getDataFile(); - } - - bool found = false; - int count = 0; - while( !found && count < data_file->header.num_files ) { - found = ( strcmp( resourcename, data_file->index.file_info[count].name ) == 0 ); - if( !found ) count++; - } - - if( !found ) { - perror("El recurs no s'ha trobat en l'arxiu de recursos"); - exit(1); - } - - filesize = data_file->index.file_info[count].length; - - std::ifstream fd( resourceFileName, std::ios::in | std::ios::binary ); - - if( fd.fail() ) { - perror("No s'ha pogut obrir l'arxiu de recursos"); - exit(1); - } - - fd.seekg( data_file->index.file_info[count].offset ); - - char* buffer = (char*)malloc( filesize ); - fd.read( buffer, filesize ); - - fd.close(); - - return buffer; -} - -void file_quit() { - if( data_file != NULL ) { - free( data_file->index.file_info ); - free( data_file ); - } -} diff --git a/fileManager.h b/fileManager.h deleted file mode 100644 index c34e7c4..0000000 --- a/fileManager.h +++ /dev/null @@ -1,7 +0,0 @@ -#pragma once - -void file_setResourceFile(const char *p_resourceFileName); - -const char *file_getBufferFromResource(const char *resourcename, int& filesize); - -void file_quit(); diff --git a/jail_audio.cpp b/jail_audio.cpp deleted file mode 100644 index c3dceb6..0000000 --- a/jail_audio.cpp +++ /dev/null @@ -1,240 +0,0 @@ -#include "jail_audio.h" -#include "stb_vorbis.c" -#include - -#define JA_MAX_SIMULTANEOUS_CHANNELS 5 - -struct JA_Sound_t { - Uint32 length {0}; - Uint8* buffer {NULL}; -}; - -struct JA_Channel_t { - JA_Sound sound; - int pos {0}; - int times {0}; - JA_Channel_state state { JA_CHANNEL_FREE }; -}; - -struct JA_Music_t { - int samples {0}; - int pos {0}; - int times {0}; - short* output {NULL}; - JA_Music_state state {JA_MUSIC_INVALID}; -}; - -JA_Music current_music{NULL}; -JA_Channel_t channels[JA_MAX_SIMULTANEOUS_CHANNELS]; - -int JA_freq {48000}; -SDL_AudioFormat JA_format {AUDIO_S16}; -Uint8 JA_channels {2}; - -void audioCallback(void * userdata, uint8_t * stream, int len) { - SDL_memset(stream, 0, len); - if (current_music != NULL && current_music->state == JA_MUSIC_PLAYING) { - const int size = SDL_min(len, current_music->samples*2-current_music->pos); - SDL_memcpy(stream, current_music->output+current_music->pos, size); - current_music->pos += size/2; - if (size < len) { - if (current_music->times != 0) { - SDL_memcpy(stream+size, current_music->output, len-size); - current_music->pos = (len-size)/2; - if (current_music->times > 0) current_music->times--; - } else { - current_music->pos = 0; - current_music->state = JA_MUSIC_STOPPED; - } - } - } - // Mixar els channels mi amol - for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) { - if (channels[i].state == JA_CHANNEL_PLAYING) { - const int size = SDL_min(len, channels[i].sound->length - channels[i].pos); - SDL_MixAudioFormat(stream, channels[i].sound->buffer + channels[i].pos, AUDIO_S16, size, 64); - channels[i].pos += size; - if (size < len) { - if (channels[i].times != 0) { - SDL_MixAudioFormat(stream + size, channels[i].sound->buffer, AUDIO_S16, len-size, 64); - channels[i].pos = len-size; - if (channels[i].times > 0) channels[i].times--; - } else { - JA_StopChannel(i); - } - } - } - } -} - -void JA_Init(const int freq, const SDL_AudioFormat format, const int channels) { - JA_freq = freq; - JA_format = format; - JA_channels = channels; - SDL_AudioSpec audioSpec{JA_freq, JA_format, JA_channels, 0, 1024, 0, 0, audioCallback, NULL}; - SDL_AudioDeviceID sdlAudioDevice = SDL_OpenAudioDevice(NULL, 0, &audioSpec, NULL, 0); - SDL_PauseAudioDevice(sdlAudioDevice, 0); -} - -JA_Music JA_LoadMusic(const char* filename) { - int chan, samplerate; - JA_Music music = new JA_Music_t(); - music->samples = stb_vorbis_decode_filename(filename, &chan, &samplerate, &music->output); - - SDL_AudioCVT cvt; - SDL_BuildAudioCVT(&cvt, AUDIO_S16, chan, samplerate, JA_format, JA_channels, JA_freq); - cvt.len = music->samples * chan * 2; - cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult); - SDL_memcpy(cvt.buf, music->output, cvt.len); - SDL_ConvertAudio(&cvt); - free(music->output); - music->output = (short*)cvt.buf; - - music->pos = 0; - music->state = JA_MUSIC_STOPPED; - - return music; -} - -JA_Music JA_LoadMusic(const Uint8* mem, int len) { - int chan, samplerate; - JA_Music music = new JA_Music_t(); - music->samples = stb_vorbis_decode_memory(mem, len, &chan, &samplerate, &music->output); - - SDL_AudioCVT cvt; - SDL_BuildAudioCVT(&cvt, AUDIO_S16, chan, samplerate, JA_format, JA_channels, JA_freq); - cvt.len = music->samples * chan * 2; - cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult); - SDL_memcpy(cvt.buf, music->output, cvt.len); - SDL_ConvertAudio(&cvt); - free(music->output); - music->output = (short*)cvt.buf; - - music->pos = 0; - music->state = JA_MUSIC_STOPPED; - - return music; -} - -void JA_PlayMusic(JA_Music music, const int loop) { - if (current_music != NULL) { - current_music->pos = 0; - current_music->state = JA_MUSIC_STOPPED; - } - current_music = music; - current_music->pos = 0; - current_music->state = JA_MUSIC_PLAYING; - current_music->times = loop; -} - -void JA_PauseMusic() { - if (current_music == NULL || current_music->state == JA_MUSIC_INVALID) return; - current_music->state = JA_MUSIC_PAUSED; -} - -void JA_ResumeMusic() { - if (current_music == NULL || current_music->state == JA_MUSIC_INVALID) return; - current_music->state = JA_MUSIC_PLAYING; -} - -void JA_StopMusic() { - if (current_music == NULL || current_music->state == JA_MUSIC_INVALID) return; - current_music->pos = 0; - current_music->state = JA_MUSIC_STOPPED; -} - -JA_Music_state JA_GetMusicState() { - if (current_music == NULL) return JA_MUSIC_INVALID; - return current_music->state; -} - -void JA_DeleteMusic(JA_Music music) { - if (current_music == music) current_music = NULL; - SDL_free(music->output); - delete music; -} - -JA_Sound JA_NewSound(Uint8* buffer, Uint32 length) { - JA_Sound sound = new JA_Sound_t(); - sound->buffer = buffer; - sound->length = length; - return sound; -} - -JA_Sound JA_LoadSound(const char* filename) { - JA_Sound sound = new JA_Sound_t(); - SDL_AudioSpec wavSpec; - SDL_LoadWAV(filename, &wavSpec, &sound->buffer, &sound->length); - - SDL_AudioCVT cvt; - SDL_BuildAudioCVT(&cvt, wavSpec.format, wavSpec.channels, wavSpec.freq, JA_format, JA_channels, JA_freq); - cvt.len = sound->length; - cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult); - SDL_memcpy(cvt.buf, sound->buffer, sound->length); - SDL_ConvertAudio(&cvt); - SDL_FreeWAV(sound->buffer); - sound->buffer = cvt.buf; - sound->length = cvt.len_cvt; - - return sound; -} - -int JA_PlaySound(JA_Sound sound, const int loop) { - int channel = 0; - while (channel < JA_MAX_SIMULTANEOUS_CHANNELS && channels[channel].state != JA_CHANNEL_FREE) { channel++; } - if (channel == JA_MAX_SIMULTANEOUS_CHANNELS) channel = 0; - - channels[channel].sound = sound; - channels[channel].times = loop; - channels[channel].pos = 0; - channels[channel].state = JA_CHANNEL_PLAYING; - return channel; -} - -void JA_DeleteSound(JA_Sound sound) { - for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) { - if (channels[i].sound == sound) JA_StopChannel(i); - } - SDL_free(sound->buffer); - delete sound; -} - -void JA_PauseChannel(const int channel) { - if (channel == -1) { - for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) { - if (channels[i].state == JA_CHANNEL_PLAYING) channels[i].state = JA_CHANNEL_PAUSED; - } - } else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS) { - if (channels[channel].state == JA_CHANNEL_PLAYING) channels[channel].state = JA_CHANNEL_PAUSED; - } -} - -void JA_ResumeChannel(const int channel) { - if (channel == -1) { - for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) { - if (channels[i].state == JA_CHANNEL_PAUSED) channels[i].state = JA_CHANNEL_PLAYING; - } - } else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS) { - if (channels[channel].state == JA_CHANNEL_PAUSED) channels[channel].state = JA_CHANNEL_PLAYING; - } -} - -void JA_StopChannel(const int channel) { - if (channel == -1) { - for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) { - channels[i].state = JA_CHANNEL_FREE; - channels[i].pos = 0; - channels[i].sound = NULL; - } - } else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS) { - channels[channel].state = JA_CHANNEL_FREE; - channels[channel].pos = 0; - channels[channel].sound = NULL; - } -} - -JA_Channel_state JA_GetChannelState(const int channel) { - if (channel < 0 || channel >= JA_MAX_SIMULTANEOUS_CHANNELS) return JA_CHANNEL_INVALID; - return channels[channel].state; -} - diff --git a/jail_audio.h b/jail_audio.h deleted file mode 100644 index 7f34740..0000000 --- a/jail_audio.h +++ /dev/null @@ -1,28 +0,0 @@ -#pragma once -#include - -enum JA_Channel_state { JA_CHANNEL_INVALID, JA_CHANNEL_FREE, JA_CHANNEL_PLAYING, JA_CHANNEL_PAUSED }; -enum JA_Music_state { JA_MUSIC_INVALID, JA_MUSIC_PLAYING, JA_MUSIC_PAUSED, JA_MUSIC_STOPPED }; - -typedef struct JA_Sound_t *JA_Sound; -typedef struct JA_Music_t *JA_Music; - -void JA_Init(const int freq, const SDL_AudioFormat format, const int channels); - -JA_Music JA_LoadMusic(const char* filename); -JA_Music JA_LoadMusic(const Uint8* mem, int len); -void JA_PlayMusic(JA_Music music, const int loop = -1); -void JA_PauseMusic(); -void JA_ResumeMusic(); -void JA_StopMusic(); -JA_Music_state JA_GetMusicState(); -void JA_DeleteMusic(JA_Music music); - -JA_Sound JA_NewSound(Uint8* buffer, Uint32 length); -JA_Sound JA_LoadSound(const char* filename); -int JA_PlaySound(JA_Sound sound, const int loop = 0); -void JA_PauseChannel(const int channel); -void JA_ResumeChannel(const int channel); -void JA_StopChannel(const int channel); -JA_Channel_state JA_GetChannelState(const int channel); -void JA_DeleteSound(JA_Sound sound); diff --git a/main.cpp b/main.cpp deleted file mode 100644 index 979f359..0000000 --- a/main.cpp +++ /dev/null @@ -1,27 +0,0 @@ -#include "AppController.h" -#include "fileManager.h" -#include "const.h" - -int main( int argc, char* args[] ) -{ - int modeGrafic = MODE_ZOOMX2; - const char *porDefecto = "data.jrf"; - file_setResourceFile(porDefecto); - - if (argc > 1) { - for (int i=1;iGo(); - - delete appController; - - return 0; - -} diff --git a/stb_vorbis.c b/stb_vorbis.c deleted file mode 100644 index 49df433..0000000 --- a/stb_vorbis.c +++ /dev/null @@ -1,5565 +0,0 @@ -// Ogg Vorbis audio decoder - v1.20 - public domain -// http://nothings.org/stb_vorbis/ -// -// Original version written by Sean Barrett in 2007. -// -// Originally sponsored by RAD Game Tools. Seeking implementation -// sponsored by Phillip Bennefall, Marc Andersen, Aaron Baker, -// Elias Software, Aras Pranckevicius, and Sean Barrett. -// -// LICENSE -// -// See end of file for license information. -// -// Limitations: -// -// - floor 0 not supported (used in old ogg vorbis files pre-2004) -// - lossless sample-truncation at beginning ignored -// - cannot concatenate multiple vorbis streams -// - sample positions are 32-bit, limiting seekable 192Khz -// files to around 6 hours (Ogg supports 64-bit) -// -// Feature contributors: -// Dougall Johnson (sample-exact seeking) -// -// Bugfix/warning contributors: -// Terje Mathisen Niklas Frykholm Andy Hill -// Casey Muratori John Bolton Gargaj -// Laurent Gomila Marc LeBlanc Ronny Chevalier -// Bernhard Wodo Evan Balster github:alxprd -// Tom Beaumont Ingo Leitgeb Nicolas Guillemot -// Phillip Bennefall Rohit Thiago Goulart -// github:manxorist saga musix github:infatum -// Timur Gagiev Maxwell Koo Peter Waller -// github:audinowho Dougall Johnson David Reid -// github:Clownacy Pedro J. Estebanez Remi Verschelde -// -// Partial history: -// 1.20 - 2020-07-11 - several small fixes -// 1.19 - 2020-02-05 - warnings -// 1.18 - 2020-02-02 - fix seek bugs; parse header comments; misc warnings etc. -// 1.17 - 2019-07-08 - fix CVE-2019-13217..CVE-2019-13223 (by ForAllSecure) -// 1.16 - 2019-03-04 - fix warnings -// 1.15 - 2019-02-07 - explicit failure if Ogg Skeleton data is found -// 1.14 - 2018-02-11 - delete bogus dealloca usage -// 1.13 - 2018-01-29 - fix truncation of last frame (hopefully) -// 1.12 - 2017-11-21 - limit residue begin/end to blocksize/2 to avoid large temp allocs in bad/corrupt files -// 1.11 - 2017-07-23 - fix MinGW compilation -// 1.10 - 2017-03-03 - more robust seeking; fix negative ilog(); clear error in open_memory -// 1.09 - 2016-04-04 - back out 'truncation of last frame' fix from previous version -// 1.08 - 2016-04-02 - warnings; setup memory leaks; truncation of last frame -// 1.07 - 2015-01-16 - fixes for crashes on invalid files; warning fixes; const -// 1.06 - 2015-08-31 - full, correct support for seeking API (Dougall Johnson) -// some crash fixes when out of memory or with corrupt files -// fix some inappropriately signed shifts -// 1.05 - 2015-04-19 - don't define __forceinline if it's redundant -// 1.04 - 2014-08-27 - fix missing const-correct case in API -// 1.03 - 2014-08-07 - warning fixes -// 1.02 - 2014-07-09 - declare qsort comparison as explicitly _cdecl in Windows -// 1.01 - 2014-06-18 - fix stb_vorbis_get_samples_float (interleaved was correct) -// 1.0 - 2014-05-26 - fix memory leaks; fix warnings; fix bugs in >2-channel; -// (API change) report sample rate for decode-full-file funcs -// -// See end of file for full version history. - - -////////////////////////////////////////////////////////////////////////////// -// -// HEADER BEGINS HERE -// - -#ifndef STB_VORBIS_INCLUDE_STB_VORBIS_H -#define STB_VORBIS_INCLUDE_STB_VORBIS_H - -#if defined(STB_VORBIS_NO_CRT) && !defined(STB_VORBIS_NO_STDIO) -#define STB_VORBIS_NO_STDIO 1 -#endif - -#ifndef STB_VORBIS_NO_STDIO -#include -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/////////// THREAD SAFETY - -// Individual stb_vorbis* handles are not thread-safe; you cannot decode from -// them from multiple threads at the same time. However, you can have multiple -// stb_vorbis* handles and decode from them independently in multiple thrads. - - -/////////// MEMORY ALLOCATION - -// normally stb_vorbis uses malloc() to allocate memory at startup, -// and alloca() to allocate temporary memory during a frame on the -// stack. (Memory consumption will depend on the amount of setup -// data in the file and how you set the compile flags for speed -// vs. size. In my test files the maximal-size usage is ~150KB.) -// -// You can modify the wrapper functions in the source (setup_malloc, -// setup_temp_malloc, temp_malloc) to change this behavior, or you -// can use a simpler allocation model: you pass in a buffer from -// which stb_vorbis will allocate _all_ its memory (including the -// temp memory). "open" may fail with a VORBIS_outofmem if you -// do not pass in enough data; there is no way to determine how -// much you do need except to succeed (at which point you can -// query get_info to find the exact amount required. yes I know -// this is lame). -// -// If you pass in a non-NULL buffer of the type below, allocation -// will occur from it as described above. Otherwise just pass NULL -// to use malloc()/alloca() - -typedef struct -{ - char *alloc_buffer; - int alloc_buffer_length_in_bytes; -} stb_vorbis_alloc; - - -/////////// FUNCTIONS USEABLE WITH ALL INPUT MODES - -typedef struct stb_vorbis stb_vorbis; - -typedef struct -{ - unsigned int sample_rate; - int channels; - - unsigned int setup_memory_required; - unsigned int setup_temp_memory_required; - unsigned int temp_memory_required; - - int max_frame_size; -} stb_vorbis_info; - -typedef struct -{ - char *vendor; - - int comment_list_length; - char **comment_list; -} stb_vorbis_comment; - -// get general information about the file -extern stb_vorbis_info stb_vorbis_get_info(stb_vorbis *f); - -// get ogg comments -extern stb_vorbis_comment stb_vorbis_get_comment(stb_vorbis *f); - -// get the last error detected (clears it, too) -extern int stb_vorbis_get_error(stb_vorbis *f); - -// close an ogg vorbis file and free all memory in use -extern void stb_vorbis_close(stb_vorbis *f); - -// this function returns the offset (in samples) from the beginning of the -// file that will be returned by the next decode, if it is known, or -1 -// otherwise. after a flush_pushdata() call, this may take a while before -// it becomes valid again. -// NOT WORKING YET after a seek with PULLDATA API -extern int stb_vorbis_get_sample_offset(stb_vorbis *f); - -// returns the current seek point within the file, or offset from the beginning -// of the memory buffer. In pushdata mode it returns 0. -extern unsigned int stb_vorbis_get_file_offset(stb_vorbis *f); - -/////////// PUSHDATA API - -#ifndef STB_VORBIS_NO_PUSHDATA_API - -// this API allows you to get blocks of data from any source and hand -// them to stb_vorbis. you have to buffer them; stb_vorbis will tell -// you how much it used, and you have to give it the rest next time; -// and stb_vorbis may not have enough data to work with and you will -// need to give it the same data again PLUS more. Note that the Vorbis -// specification does not bound the size of an individual frame. - -extern stb_vorbis *stb_vorbis_open_pushdata( - const unsigned char * datablock, int datablock_length_in_bytes, - int *datablock_memory_consumed_in_bytes, - int *error, - const stb_vorbis_alloc *alloc_buffer); -// create a vorbis decoder by passing in the initial data block containing -// the ogg&vorbis headers (you don't need to do parse them, just provide -// the first N bytes of the file--you're told if it's not enough, see below) -// on success, returns an stb_vorbis *, does not set error, returns the amount of -// data parsed/consumed on this call in *datablock_memory_consumed_in_bytes; -// on failure, returns NULL on error and sets *error, does not change *datablock_memory_consumed -// if returns NULL and *error is VORBIS_need_more_data, then the input block was -// incomplete and you need to pass in a larger block from the start of the file - -extern int stb_vorbis_decode_frame_pushdata( - stb_vorbis *f, - const unsigned char *datablock, int datablock_length_in_bytes, - int *channels, // place to write number of float * buffers - float ***output, // place to write float ** array of float * buffers - int *samples // place to write number of output samples - ); -// decode a frame of audio sample data if possible from the passed-in data block -// -// return value: number of bytes we used from datablock -// -// possible cases: -// 0 bytes used, 0 samples output (need more data) -// N bytes used, 0 samples output (resynching the stream, keep going) -// N bytes used, M samples output (one frame of data) -// note that after opening a file, you will ALWAYS get one N-bytes,0-sample -// frame, because Vorbis always "discards" the first frame. -// -// Note that on resynch, stb_vorbis will rarely consume all of the buffer, -// instead only datablock_length_in_bytes-3 or less. This is because it wants -// to avoid missing parts of a page header if they cross a datablock boundary, -// without writing state-machiney code to record a partial detection. -// -// The number of channels returned are stored in *channels (which can be -// NULL--it is always the same as the number of channels reported by -// get_info). *output will contain an array of float* buffers, one per -// channel. In other words, (*output)[0][0] contains the first sample from -// the first channel, and (*output)[1][0] contains the first sample from -// the second channel. - -extern void stb_vorbis_flush_pushdata(stb_vorbis *f); -// inform stb_vorbis that your next datablock will not be contiguous with -// previous ones (e.g. you've seeked in the data); future attempts to decode -// frames will cause stb_vorbis to resynchronize (as noted above), and -// once it sees a valid Ogg page (typically 4-8KB, as large as 64KB), it -// will begin decoding the _next_ frame. -// -// if you want to seek using pushdata, you need to seek in your file, then -// call stb_vorbis_flush_pushdata(), then start calling decoding, then once -// decoding is returning you data, call stb_vorbis_get_sample_offset, and -// if you don't like the result, seek your file again and repeat. -#endif - - -////////// PULLING INPUT API - -#ifndef STB_VORBIS_NO_PULLDATA_API -// This API assumes stb_vorbis is allowed to pull data from a source-- -// either a block of memory containing the _entire_ vorbis stream, or a -// FILE * that you or it create, or possibly some other reading mechanism -// if you go modify the source to replace the FILE * case with some kind -// of callback to your code. (But if you don't support seeking, you may -// just want to go ahead and use pushdata.) - -#if !defined(STB_VORBIS_NO_STDIO) && !defined(STB_VORBIS_NO_INTEGER_CONVERSION) -extern int stb_vorbis_decode_filename(const char *filename, int *channels, int *sample_rate, short **output); -#endif -#if !defined(STB_VORBIS_NO_INTEGER_CONVERSION) -extern int stb_vorbis_decode_memory(const unsigned char *mem, int len, int *channels, int *sample_rate, short **output); -#endif -// decode an entire file and output the data interleaved into a malloc()ed -// buffer stored in *output. The return value is the number of samples -// decoded, or -1 if the file could not be opened or was not an ogg vorbis file. -// When you're done with it, just free() the pointer returned in *output. - -extern stb_vorbis * stb_vorbis_open_memory(const unsigned char *data, int len, - int *error, const stb_vorbis_alloc *alloc_buffer); -// create an ogg vorbis decoder from an ogg vorbis stream in memory (note -// this must be the entire stream!). on failure, returns NULL and sets *error - -#ifndef STB_VORBIS_NO_STDIO -extern stb_vorbis * stb_vorbis_open_filename(const char *filename, - int *error, const stb_vorbis_alloc *alloc_buffer); -// create an ogg vorbis decoder from a filename via fopen(). on failure, -// returns NULL and sets *error (possibly to VORBIS_file_open_failure). - -extern stb_vorbis * stb_vorbis_open_file(FILE *f, int close_handle_on_close, - int *error, const stb_vorbis_alloc *alloc_buffer); -// create an ogg vorbis decoder from an open FILE *, looking for a stream at -// the _current_ seek point (ftell). on failure, returns NULL and sets *error. -// note that stb_vorbis must "own" this stream; if you seek it in between -// calls to stb_vorbis, it will become confused. Moreover, if you attempt to -// perform stb_vorbis_seek_*() operations on this file, it will assume it -// owns the _entire_ rest of the file after the start point. Use the next -// function, stb_vorbis_open_file_section(), to limit it. - -extern stb_vorbis * stb_vorbis_open_file_section(FILE *f, int close_handle_on_close, - int *error, const stb_vorbis_alloc *alloc_buffer, unsigned int len); -// create an ogg vorbis decoder from an open FILE *, looking for a stream at -// the _current_ seek point (ftell); the stream will be of length 'len' bytes. -// on failure, returns NULL and sets *error. note that stb_vorbis must "own" -// this stream; if you seek it in between calls to stb_vorbis, it will become -// confused. -#endif - -extern int stb_vorbis_seek_frame(stb_vorbis *f, unsigned int sample_number); -extern int stb_vorbis_seek(stb_vorbis *f, unsigned int sample_number); -// these functions seek in the Vorbis file to (approximately) 'sample_number'. -// after calling seek_frame(), the next call to get_frame_*() will include -// the specified sample. after calling stb_vorbis_seek(), the next call to -// stb_vorbis_get_samples_* will start with the specified sample. If you -// do not need to seek to EXACTLY the target sample when using get_samples_*, -// you can also use seek_frame(). - -extern int stb_vorbis_seek_start(stb_vorbis *f); -// this function is equivalent to stb_vorbis_seek(f,0) - -extern unsigned int stb_vorbis_stream_length_in_samples(stb_vorbis *f); -extern float stb_vorbis_stream_length_in_seconds(stb_vorbis *f); -// these functions return the total length of the vorbis stream - -extern int stb_vorbis_get_frame_float(stb_vorbis *f, int *channels, float ***output); -// decode the next frame and return the number of samples. the number of -// channels returned are stored in *channels (which can be NULL--it is always -// the same as the number of channels reported by get_info). *output will -// contain an array of float* buffers, one per channel. These outputs will -// be overwritten on the next call to stb_vorbis_get_frame_*. -// -// You generally should not intermix calls to stb_vorbis_get_frame_*() -// and stb_vorbis_get_samples_*(), since the latter calls the former. - -#ifndef STB_VORBIS_NO_INTEGER_CONVERSION -extern int stb_vorbis_get_frame_short_interleaved(stb_vorbis *f, int num_c, short *buffer, int num_shorts); -extern int stb_vorbis_get_frame_short (stb_vorbis *f, int num_c, short **buffer, int num_samples); -#endif -// decode the next frame and return the number of *samples* per channel. -// Note that for interleaved data, you pass in the number of shorts (the -// size of your array), but the return value is the number of samples per -// channel, not the total number of samples. -// -// The data is coerced to the number of channels you request according to the -// channel coercion rules (see below). You must pass in the size of your -// buffer(s) so that stb_vorbis will not overwrite the end of the buffer. -// The maximum buffer size needed can be gotten from get_info(); however, -// the Vorbis I specification implies an absolute maximum of 4096 samples -// per channel. - -// Channel coercion rules: -// Let M be the number of channels requested, and N the number of channels present, -// and Cn be the nth channel; let stereo L be the sum of all L and center channels, -// and stereo R be the sum of all R and center channels (channel assignment from the -// vorbis spec). -// M N output -// 1 k sum(Ck) for all k -// 2 * stereo L, stereo R -// k l k > l, the first l channels, then 0s -// k l k <= l, the first k channels -// Note that this is not _good_ surround etc. mixing at all! It's just so -// you get something useful. - -extern int stb_vorbis_get_samples_float_interleaved(stb_vorbis *f, int channels, float *buffer, int num_floats); -extern int stb_vorbis_get_samples_float(stb_vorbis *f, int channels, float **buffer, int num_samples); -// gets num_samples samples, not necessarily on a frame boundary--this requires -// buffering so you have to supply the buffers. DOES NOT APPLY THE COERCION RULES. -// Returns the number of samples stored per channel; it may be less than requested -// at the end of the file. If there are no more samples in the file, returns 0. - -#ifndef STB_VORBIS_NO_INTEGER_CONVERSION -extern int stb_vorbis_get_samples_short_interleaved(stb_vorbis *f, int channels, short *buffer, int num_shorts); -extern int stb_vorbis_get_samples_short(stb_vorbis *f, int channels, short **buffer, int num_samples); -#endif -// gets num_samples samples, not necessarily on a frame boundary--this requires -// buffering so you have to supply the buffers. Applies the coercion rules above -// to produce 'channels' channels. Returns the number of samples stored per channel; -// it may be less than requested at the end of the file. If there are no more -// samples in the file, returns 0. - -#endif - -//////// ERROR CODES - -enum STBVorbisError -{ - VORBIS__no_error, - - VORBIS_need_more_data=1, // not a real error - - VORBIS_invalid_api_mixing, // can't mix API modes - VORBIS_outofmem, // not enough memory - VORBIS_feature_not_supported, // uses floor 0 - VORBIS_too_many_channels, // STB_VORBIS_MAX_CHANNELS is too small - VORBIS_file_open_failure, // fopen() failed - VORBIS_seek_without_length, // can't seek in unknown-length file - - VORBIS_unexpected_eof=10, // file is truncated? - VORBIS_seek_invalid, // seek past EOF - - // decoding errors (corrupt/invalid stream) -- you probably - // don't care about the exact details of these - - // vorbis errors: - VORBIS_invalid_setup=20, - VORBIS_invalid_stream, - - // ogg errors: - VORBIS_missing_capture_pattern=30, - VORBIS_invalid_stream_structure_version, - VORBIS_continued_packet_flag_invalid, - VORBIS_incorrect_stream_serial_number, - VORBIS_invalid_first_page, - VORBIS_bad_packet_type, - VORBIS_cant_find_last_page, - VORBIS_seek_failed, - VORBIS_ogg_skeleton_not_supported -}; - - -#ifdef __cplusplus -} -#endif - -#endif // STB_VORBIS_INCLUDE_STB_VORBIS_H -// -// HEADER ENDS HERE -// -////////////////////////////////////////////////////////////////////////////// - -#ifndef STB_VORBIS_HEADER_ONLY - -// global configuration settings (e.g. set these in the project/makefile), -// or just set them in this file at the top (although ideally the first few -// should be visible when the header file is compiled too, although it's not -// crucial) - -// STB_VORBIS_NO_PUSHDATA_API -// does not compile the code for the various stb_vorbis_*_pushdata() -// functions -// #define STB_VORBIS_NO_PUSHDATA_API - -// STB_VORBIS_NO_PULLDATA_API -// does not compile the code for the non-pushdata APIs -// #define STB_VORBIS_NO_PULLDATA_API - -// STB_VORBIS_NO_STDIO -// does not compile the code for the APIs that use FILE *s internally -// or externally (implied by STB_VORBIS_NO_PULLDATA_API) -// #define STB_VORBIS_NO_STDIO - -// STB_VORBIS_NO_INTEGER_CONVERSION -// does not compile the code for converting audio sample data from -// float to integer (implied by STB_VORBIS_NO_PULLDATA_API) -// #define STB_VORBIS_NO_INTEGER_CONVERSION - -// STB_VORBIS_NO_FAST_SCALED_FLOAT -// does not use a fast float-to-int trick to accelerate float-to-int on -// most platforms which requires endianness be defined correctly. -//#define STB_VORBIS_NO_FAST_SCALED_FLOAT - - -// STB_VORBIS_MAX_CHANNELS [number] -// globally define this to the maximum number of channels you need. -// The spec does not put a restriction on channels except that -// the count is stored in a byte, so 255 is the hard limit. -// Reducing this saves about 16 bytes per value, so using 16 saves -// (255-16)*16 or around 4KB. Plus anything other memory usage -// I forgot to account for. Can probably go as low as 8 (7.1 audio), -// 6 (5.1 audio), or 2 (stereo only). -#ifndef STB_VORBIS_MAX_CHANNELS -#define STB_VORBIS_MAX_CHANNELS 16 // enough for anyone? -#endif - -// STB_VORBIS_PUSHDATA_CRC_COUNT [number] -// after a flush_pushdata(), stb_vorbis begins scanning for the -// next valid page, without backtracking. when it finds something -// that looks like a page, it streams through it and verifies its -// CRC32. Should that validation fail, it keeps scanning. But it's -// possible that _while_ streaming through to check the CRC32 of -// one candidate page, it sees another candidate page. This #define -// determines how many "overlapping" candidate pages it can search -// at once. Note that "real" pages are typically ~4KB to ~8KB, whereas -// garbage pages could be as big as 64KB, but probably average ~16KB. -// So don't hose ourselves by scanning an apparent 64KB page and -// missing a ton of real ones in the interim; so minimum of 2 -#ifndef STB_VORBIS_PUSHDATA_CRC_COUNT -#define STB_VORBIS_PUSHDATA_CRC_COUNT 4 -#endif - -// STB_VORBIS_FAST_HUFFMAN_LENGTH [number] -// sets the log size of the huffman-acceleration table. Maximum -// supported value is 24. with larger numbers, more decodings are O(1), -// but the table size is larger so worse cache missing, so you'll have -// to probe (and try multiple ogg vorbis files) to find the sweet spot. -#ifndef STB_VORBIS_FAST_HUFFMAN_LENGTH -#define STB_VORBIS_FAST_HUFFMAN_LENGTH 10 -#endif - -// STB_VORBIS_FAST_BINARY_LENGTH [number] -// sets the log size of the binary-search acceleration table. this -// is used in similar fashion to the fast-huffman size to set initial -// parameters for the binary search - -// STB_VORBIS_FAST_HUFFMAN_INT -// The fast huffman tables are much more efficient if they can be -// stored as 16-bit results instead of 32-bit results. This restricts -// the codebooks to having only 65535 possible outcomes, though. -// (At least, accelerated by the huffman table.) -#ifndef STB_VORBIS_FAST_HUFFMAN_INT -#define STB_VORBIS_FAST_HUFFMAN_SHORT -#endif - -// STB_VORBIS_NO_HUFFMAN_BINARY_SEARCH -// If the 'fast huffman' search doesn't succeed, then stb_vorbis falls -// back on binary searching for the correct one. This requires storing -// extra tables with the huffman codes in sorted order. Defining this -// symbol trades off space for speed by forcing a linear search in the -// non-fast case, except for "sparse" codebooks. -// #define STB_VORBIS_NO_HUFFMAN_BINARY_SEARCH - -// STB_VORBIS_DIVIDES_IN_RESIDUE -// stb_vorbis precomputes the result of the scalar residue decoding -// that would otherwise require a divide per chunk. you can trade off -// space for time by defining this symbol. -// #define STB_VORBIS_DIVIDES_IN_RESIDUE - -// STB_VORBIS_DIVIDES_IN_CODEBOOK -// vorbis VQ codebooks can be encoded two ways: with every case explicitly -// stored, or with all elements being chosen from a small range of values, -// and all values possible in all elements. By default, stb_vorbis expands -// this latter kind out to look like the former kind for ease of decoding, -// because otherwise an integer divide-per-vector-element is required to -// unpack the index. If you define STB_VORBIS_DIVIDES_IN_CODEBOOK, you can -// trade off storage for speed. -//#define STB_VORBIS_DIVIDES_IN_CODEBOOK - -#ifdef STB_VORBIS_CODEBOOK_SHORTS -#error "STB_VORBIS_CODEBOOK_SHORTS is no longer supported as it produced incorrect results for some input formats" -#endif - -// STB_VORBIS_DIVIDE_TABLE -// this replaces small integer divides in the floor decode loop with -// table lookups. made less than 1% difference, so disabled by default. - -// STB_VORBIS_NO_INLINE_DECODE -// disables the inlining of the scalar codebook fast-huffman decode. -// might save a little codespace; useful for debugging -// #define STB_VORBIS_NO_INLINE_DECODE - -// STB_VORBIS_NO_DEFER_FLOOR -// Normally we only decode the floor without synthesizing the actual -// full curve. We can instead synthesize the curve immediately. This -// requires more memory and is very likely slower, so I don't think -// you'd ever want to do it except for debugging. -// #define STB_VORBIS_NO_DEFER_FLOOR - - - - -////////////////////////////////////////////////////////////////////////////// - -#ifdef STB_VORBIS_NO_PULLDATA_API - #define STB_VORBIS_NO_INTEGER_CONVERSION - #define STB_VORBIS_NO_STDIO -#endif - -#if defined(STB_VORBIS_NO_CRT) && !defined(STB_VORBIS_NO_STDIO) - #define STB_VORBIS_NO_STDIO 1 -#endif - -#ifndef STB_VORBIS_NO_INTEGER_CONVERSION -#ifndef STB_VORBIS_NO_FAST_SCALED_FLOAT - - // only need endianness for fast-float-to-int, which we don't - // use for pushdata - - #ifndef STB_VORBIS_BIG_ENDIAN - #define STB_VORBIS_ENDIAN 0 - #else - #define STB_VORBIS_ENDIAN 1 - #endif - -#endif -#endif - - -#ifndef STB_VORBIS_NO_STDIO -#include -#endif - -#ifndef STB_VORBIS_NO_CRT - #include - #include - #include - #include - - // find definition of alloca if it's not in stdlib.h: - #if defined(_MSC_VER) || defined(__MINGW32__) - #include - #endif - #if defined(__linux__) || defined(__linux) || defined(__EMSCRIPTEN__) || defined(__NEWLIB__) - #include - #endif -#else // STB_VORBIS_NO_CRT - #define NULL 0 - #define malloc(s) 0 - #define free(s) ((void) 0) - #define realloc(s) 0 -#endif // STB_VORBIS_NO_CRT - -#include - -#ifdef __MINGW32__ - // eff you mingw: - // "fixed": - // http://sourceforge.net/p/mingw-w64/mailman/message/32882927/ - // "no that broke the build, reverted, who cares about C": - // http://sourceforge.net/p/mingw-w64/mailman/message/32890381/ - #ifdef __forceinline - #undef __forceinline - #endif - #define __forceinline - #ifndef alloca - #define alloca __builtin_alloca - #endif -#elif !defined(_MSC_VER) - #if __GNUC__ - #define __forceinline inline - #else - #define __forceinline - #endif -#endif - -#if STB_VORBIS_MAX_CHANNELS > 256 -#error "Value of STB_VORBIS_MAX_CHANNELS outside of allowed range" -#endif - -#if STB_VORBIS_FAST_HUFFMAN_LENGTH > 24 -#error "Value of STB_VORBIS_FAST_HUFFMAN_LENGTH outside of allowed range" -#endif - - -#if 0 -#include -#define CHECK(f) _CrtIsValidHeapPointer(f->channel_buffers[1]) -#else -#define CHECK(f) ((void) 0) -#endif - -#define MAX_BLOCKSIZE_LOG 13 // from specification -#define MAX_BLOCKSIZE (1 << MAX_BLOCKSIZE_LOG) - - -typedef unsigned char uint8; -typedef signed char int8; -typedef unsigned short uint16; -typedef signed short int16; -typedef unsigned int uint32; -typedef signed int int32; - -#ifndef TRUE -#define TRUE 1 -#define FALSE 0 -#endif - -typedef float codetype; - -// @NOTE -// -// Some arrays below are tagged "//varies", which means it's actually -// a variable-sized piece of data, but rather than malloc I assume it's -// small enough it's better to just allocate it all together with the -// main thing -// -// Most of the variables are specified with the smallest size I could pack -// them into. It might give better performance to make them all full-sized -// integers. It should be safe to freely rearrange the structures or change -// the sizes larger--nothing relies on silently truncating etc., nor the -// order of variables. - -#define FAST_HUFFMAN_TABLE_SIZE (1 << STB_VORBIS_FAST_HUFFMAN_LENGTH) -#define FAST_HUFFMAN_TABLE_MASK (FAST_HUFFMAN_TABLE_SIZE - 1) - -typedef struct -{ - int dimensions, entries; - uint8 *codeword_lengths; - float minimum_value; - float delta_value; - uint8 value_bits; - uint8 lookup_type; - uint8 sequence_p; - uint8 sparse; - uint32 lookup_values; - codetype *multiplicands; - uint32 *codewords; - #ifdef STB_VORBIS_FAST_HUFFMAN_SHORT - int16 fast_huffman[FAST_HUFFMAN_TABLE_SIZE]; - #else - int32 fast_huffman[FAST_HUFFMAN_TABLE_SIZE]; - #endif - uint32 *sorted_codewords; - int *sorted_values; - int sorted_entries; -} Codebook; - -typedef struct -{ - uint8 order; - uint16 rate; - uint16 bark_map_size; - uint8 amplitude_bits; - uint8 amplitude_offset; - uint8 number_of_books; - uint8 book_list[16]; // varies -} Floor0; - -typedef struct -{ - uint8 partitions; - uint8 partition_class_list[32]; // varies - uint8 class_dimensions[16]; // varies - uint8 class_subclasses[16]; // varies - uint8 class_masterbooks[16]; // varies - int16 subclass_books[16][8]; // varies - uint16 Xlist[31*8+2]; // varies - uint8 sorted_order[31*8+2]; - uint8 neighbors[31*8+2][2]; - uint8 floor1_multiplier; - uint8 rangebits; - int values; -} Floor1; - -typedef union -{ - Floor0 floor0; - Floor1 floor1; -} Floor; - -typedef struct -{ - uint32 begin, end; - uint32 part_size; - uint8 classifications; - uint8 classbook; - uint8 **classdata; - int16 (*residue_books)[8]; -} Residue; - -typedef struct -{ - uint8 magnitude; - uint8 angle; - uint8 mux; -} MappingChannel; - -typedef struct -{ - uint16 coupling_steps; - MappingChannel *chan; - uint8 submaps; - uint8 submap_floor[15]; // varies - uint8 submap_residue[15]; // varies -} Mapping; - -typedef struct -{ - uint8 blockflag; - uint8 mapping; - uint16 windowtype; - uint16 transformtype; -} Mode; - -typedef struct -{ - uint32 goal_crc; // expected crc if match - int bytes_left; // bytes left in packet - uint32 crc_so_far; // running crc - int bytes_done; // bytes processed in _current_ chunk - uint32 sample_loc; // granule pos encoded in page -} CRCscan; - -typedef struct -{ - uint32 page_start, page_end; - uint32 last_decoded_sample; -} ProbedPage; - -struct stb_vorbis -{ - // user-accessible info - unsigned int sample_rate; - int channels; - - unsigned int setup_memory_required; - unsigned int temp_memory_required; - unsigned int setup_temp_memory_required; - - char *vendor; - int comment_list_length; - char **comment_list; - - // input config -#ifndef STB_VORBIS_NO_STDIO - FILE *f; - uint32 f_start; - int close_on_free; -#endif - - uint8 *stream; - uint8 *stream_start; - uint8 *stream_end; - - uint32 stream_len; - - uint8 push_mode; - - // the page to seek to when seeking to start, may be zero - uint32 first_audio_page_offset; - - // p_first is the page on which the first audio packet ends - // (but not necessarily the page on which it starts) - ProbedPage p_first, p_last; - - // memory management - stb_vorbis_alloc alloc; - int setup_offset; - int temp_offset; - - // run-time results - int eof; - enum STBVorbisError error; - - // user-useful data - - // header info - int blocksize[2]; - int blocksize_0, blocksize_1; - int codebook_count; - Codebook *codebooks; - int floor_count; - uint16 floor_types[64]; // varies - Floor *floor_config; - int residue_count; - uint16 residue_types[64]; // varies - Residue *residue_config; - int mapping_count; - Mapping *mapping; - int mode_count; - Mode mode_config[64]; // varies - - uint32 total_samples; - - // decode buffer - float *channel_buffers[STB_VORBIS_MAX_CHANNELS]; - float *outputs [STB_VORBIS_MAX_CHANNELS]; - - float *previous_window[STB_VORBIS_MAX_CHANNELS]; - int previous_length; - - #ifndef STB_VORBIS_NO_DEFER_FLOOR - int16 *finalY[STB_VORBIS_MAX_CHANNELS]; - #else - float *floor_buffers[STB_VORBIS_MAX_CHANNELS]; - #endif - - uint32 current_loc; // sample location of next frame to decode - int current_loc_valid; - - // per-blocksize precomputed data - - // twiddle factors - float *A[2],*B[2],*C[2]; - float *window[2]; - uint16 *bit_reverse[2]; - - // current page/packet/segment streaming info - uint32 serial; // stream serial number for verification - int last_page; - int segment_count; - uint8 segments[255]; - uint8 page_flag; - uint8 bytes_in_seg; - uint8 first_decode; - int next_seg; - int last_seg; // flag that we're on the last segment - int last_seg_which; // what was the segment number of the last seg? - uint32 acc; - int valid_bits; - int packet_bytes; - int end_seg_with_known_loc; - uint32 known_loc_for_packet; - int discard_samples_deferred; - uint32 samples_output; - - // push mode scanning - int page_crc_tests; // only in push_mode: number of tests active; -1 if not searching -#ifndef STB_VORBIS_NO_PUSHDATA_API - CRCscan scan[STB_VORBIS_PUSHDATA_CRC_COUNT]; -#endif - - // sample-access - int channel_buffer_start; - int channel_buffer_end; -}; - -#if defined(STB_VORBIS_NO_PUSHDATA_API) - #define IS_PUSH_MODE(f) FALSE -#elif defined(STB_VORBIS_NO_PULLDATA_API) - #define IS_PUSH_MODE(f) TRUE -#else - #define IS_PUSH_MODE(f) ((f)->push_mode) -#endif - -typedef struct stb_vorbis vorb; - -static int error(vorb *f, enum STBVorbisError e) -{ - f->error = e; - if (!f->eof && e != VORBIS_need_more_data) { - f->error=e; // breakpoint for debugging - } - return 0; -} - - -// these functions are used for allocating temporary memory -// while decoding. if you can afford the stack space, use -// alloca(); otherwise, provide a temp buffer and it will -// allocate out of those. - -#define array_size_required(count,size) (count*(sizeof(void *)+(size))) - -#define temp_alloc(f,size) (f->alloc.alloc_buffer ? setup_temp_malloc(f,size) : alloca(size)) -#define temp_free(f,p) (void)0 -#define temp_alloc_save(f) ((f)->temp_offset) -#define temp_alloc_restore(f,p) ((f)->temp_offset = (p)) - -#define temp_block_array(f,count,size) make_block_array(temp_alloc(f,array_size_required(count,size)), count, size) - -// given a sufficiently large block of memory, make an array of pointers to subblocks of it -static void *make_block_array(void *mem, int count, int size) -{ - int i; - void ** p = (void **) mem; - char *q = (char *) (p + count); - for (i=0; i < count; ++i) { - p[i] = q; - q += size; - } - return p; -} - -static void *setup_malloc(vorb *f, int sz) -{ - sz = (sz+7) & ~7; // round up to nearest 8 for alignment of future allocs. - f->setup_memory_required += sz; - if (f->alloc.alloc_buffer) { - void *p = (char *) f->alloc.alloc_buffer + f->setup_offset; - if (f->setup_offset + sz > f->temp_offset) return NULL; - f->setup_offset += sz; - return p; - } - return sz ? malloc(sz) : NULL; -} - -static void setup_free(vorb *f, void *p) -{ - if (f->alloc.alloc_buffer) return; // do nothing; setup mem is a stack - free(p); -} - -static void *setup_temp_malloc(vorb *f, int sz) -{ - sz = (sz+7) & ~7; // round up to nearest 8 for alignment of future allocs. - if (f->alloc.alloc_buffer) { - if (f->temp_offset - sz < f->setup_offset) return NULL; - f->temp_offset -= sz; - return (char *) f->alloc.alloc_buffer + f->temp_offset; - } - return malloc(sz); -} - -static void setup_temp_free(vorb *f, void *p, int sz) -{ - if (f->alloc.alloc_buffer) { - f->temp_offset += (sz+7)&~7; - return; - } - free(p); -} - -#define CRC32_POLY 0x04c11db7 // from spec - -static uint32 crc_table[256]; -static void crc32_init(void) -{ - int i,j; - uint32 s; - for(i=0; i < 256; i++) { - for (s=(uint32) i << 24, j=0; j < 8; ++j) - s = (s << 1) ^ (s >= (1U<<31) ? CRC32_POLY : 0); - crc_table[i] = s; - } -} - -static __forceinline uint32 crc32_update(uint32 crc, uint8 byte) -{ - return (crc << 8) ^ crc_table[byte ^ (crc >> 24)]; -} - - -// used in setup, and for huffman that doesn't go fast path -static unsigned int bit_reverse(unsigned int n) -{ - n = ((n & 0xAAAAAAAA) >> 1) | ((n & 0x55555555) << 1); - n = ((n & 0xCCCCCCCC) >> 2) | ((n & 0x33333333) << 2); - n = ((n & 0xF0F0F0F0) >> 4) | ((n & 0x0F0F0F0F) << 4); - n = ((n & 0xFF00FF00) >> 8) | ((n & 0x00FF00FF) << 8); - return (n >> 16) | (n << 16); -} - -static float square(float x) -{ - return x*x; -} - -// this is a weird definition of log2() for which log2(1) = 1, log2(2) = 2, log2(4) = 3 -// as required by the specification. fast(?) implementation from stb.h -// @OPTIMIZE: called multiple times per-packet with "constants"; move to setup -static int ilog(int32 n) -{ - static signed char log2_4[16] = { 0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4 }; - - if (n < 0) return 0; // signed n returns 0 - - // 2 compares if n < 16, 3 compares otherwise (4 if signed or n > 1<<29) - if (n < (1 << 14)) - if (n < (1 << 4)) return 0 + log2_4[n ]; - else if (n < (1 << 9)) return 5 + log2_4[n >> 5]; - else return 10 + log2_4[n >> 10]; - else if (n < (1 << 24)) - if (n < (1 << 19)) return 15 + log2_4[n >> 15]; - else return 20 + log2_4[n >> 20]; - else if (n < (1 << 29)) return 25 + log2_4[n >> 25]; - else return 30 + log2_4[n >> 30]; -} - -#ifndef M_PI - #define M_PI 3.14159265358979323846264f // from CRC -#endif - -// code length assigned to a value with no huffman encoding -#define NO_CODE 255 - -/////////////////////// LEAF SETUP FUNCTIONS ////////////////////////// -// -// these functions are only called at setup, and only a few times -// per file - -static float float32_unpack(uint32 x) -{ - // from the specification - uint32 mantissa = x & 0x1fffff; - uint32 sign = x & 0x80000000; - uint32 exp = (x & 0x7fe00000) >> 21; - double res = sign ? -(double)mantissa : (double)mantissa; - return (float) ldexp((float)res, exp-788); -} - - -// zlib & jpeg huffman tables assume that the output symbols -// can either be arbitrarily arranged, or have monotonically -// increasing frequencies--they rely on the lengths being sorted; -// this makes for a very simple generation algorithm. -// vorbis allows a huffman table with non-sorted lengths. This -// requires a more sophisticated construction, since symbols in -// order do not map to huffman codes "in order". -static void add_entry(Codebook *c, uint32 huff_code, int symbol, int count, int len, uint32 *values) -{ - if (!c->sparse) { - c->codewords [symbol] = huff_code; - } else { - c->codewords [count] = huff_code; - c->codeword_lengths[count] = len; - values [count] = symbol; - } -} - -static int compute_codewords(Codebook *c, uint8 *len, int n, uint32 *values) -{ - int i,k,m=0; - uint32 available[32]; - - memset(available, 0, sizeof(available)); - // find the first entry - for (k=0; k < n; ++k) if (len[k] < NO_CODE) break; - if (k == n) { assert(c->sorted_entries == 0); return TRUE; } - // add to the list - add_entry(c, 0, k, m++, len[k], values); - // add all available leaves - for (i=1; i <= len[k]; ++i) - available[i] = 1U << (32-i); - // note that the above code treats the first case specially, - // but it's really the same as the following code, so they - // could probably be combined (except the initial code is 0, - // and I use 0 in available[] to mean 'empty') - for (i=k+1; i < n; ++i) { - uint32 res; - int z = len[i], y; - if (z == NO_CODE) continue; - // find lowest available leaf (should always be earliest, - // which is what the specification calls for) - // note that this property, and the fact we can never have - // more than one free leaf at a given level, isn't totally - // trivial to prove, but it seems true and the assert never - // fires, so! - while (z > 0 && !available[z]) --z; - if (z == 0) { return FALSE; } - res = available[z]; - assert(z >= 0 && z < 32); - available[z] = 0; - add_entry(c, bit_reverse(res), i, m++, len[i], values); - // propagate availability up the tree - if (z != len[i]) { - assert(len[i] >= 0 && len[i] < 32); - for (y=len[i]; y > z; --y) { - assert(available[y] == 0); - available[y] = res + (1 << (32-y)); - } - } - } - return TRUE; -} - -// accelerated huffman table allows fast O(1) match of all symbols -// of length <= STB_VORBIS_FAST_HUFFMAN_LENGTH -static void compute_accelerated_huffman(Codebook *c) -{ - int i, len; - for (i=0; i < FAST_HUFFMAN_TABLE_SIZE; ++i) - c->fast_huffman[i] = -1; - - len = c->sparse ? c->sorted_entries : c->entries; - #ifdef STB_VORBIS_FAST_HUFFMAN_SHORT - if (len > 32767) len = 32767; // largest possible value we can encode! - #endif - for (i=0; i < len; ++i) { - if (c->codeword_lengths[i] <= STB_VORBIS_FAST_HUFFMAN_LENGTH) { - uint32 z = c->sparse ? bit_reverse(c->sorted_codewords[i]) : c->codewords[i]; - // set table entries for all bit combinations in the higher bits - while (z < FAST_HUFFMAN_TABLE_SIZE) { - c->fast_huffman[z] = i; - z += 1 << c->codeword_lengths[i]; - } - } - } -} - -#ifdef _MSC_VER -#define STBV_CDECL __cdecl -#else -#define STBV_CDECL -#endif - -static int STBV_CDECL uint32_compare(const void *p, const void *q) -{ - uint32 x = * (uint32 *) p; - uint32 y = * (uint32 *) q; - return x < y ? -1 : x > y; -} - -static int include_in_sort(Codebook *c, uint8 len) -{ - if (c->sparse) { assert(len != NO_CODE); return TRUE; } - if (len == NO_CODE) return FALSE; - if (len > STB_VORBIS_FAST_HUFFMAN_LENGTH) return TRUE; - return FALSE; -} - -// if the fast table above doesn't work, we want to binary -// search them... need to reverse the bits -static void compute_sorted_huffman(Codebook *c, uint8 *lengths, uint32 *values) -{ - int i, len; - // build a list of all the entries - // OPTIMIZATION: don't include the short ones, since they'll be caught by FAST_HUFFMAN. - // this is kind of a frivolous optimization--I don't see any performance improvement, - // but it's like 4 extra lines of code, so. - if (!c->sparse) { - int k = 0; - for (i=0; i < c->entries; ++i) - if (include_in_sort(c, lengths[i])) - c->sorted_codewords[k++] = bit_reverse(c->codewords[i]); - assert(k == c->sorted_entries); - } else { - for (i=0; i < c->sorted_entries; ++i) - c->sorted_codewords[i] = bit_reverse(c->codewords[i]); - } - - qsort(c->sorted_codewords, c->sorted_entries, sizeof(c->sorted_codewords[0]), uint32_compare); - c->sorted_codewords[c->sorted_entries] = 0xffffffff; - - len = c->sparse ? c->sorted_entries : c->entries; - // now we need to indicate how they correspond; we could either - // #1: sort a different data structure that says who they correspond to - // #2: for each sorted entry, search the original list to find who corresponds - // #3: for each original entry, find the sorted entry - // #1 requires extra storage, #2 is slow, #3 can use binary search! - for (i=0; i < len; ++i) { - int huff_len = c->sparse ? lengths[values[i]] : lengths[i]; - if (include_in_sort(c,huff_len)) { - uint32 code = bit_reverse(c->codewords[i]); - int x=0, n=c->sorted_entries; - while (n > 1) { - // invariant: sc[x] <= code < sc[x+n] - int m = x + (n >> 1); - if (c->sorted_codewords[m] <= code) { - x = m; - n -= (n>>1); - } else { - n >>= 1; - } - } - assert(c->sorted_codewords[x] == code); - if (c->sparse) { - c->sorted_values[x] = values[i]; - c->codeword_lengths[x] = huff_len; - } else { - c->sorted_values[x] = i; - } - } - } -} - -// only run while parsing the header (3 times) -static int vorbis_validate(uint8 *data) -{ - static uint8 vorbis[6] = { 'v', 'o', 'r', 'b', 'i', 's' }; - return memcmp(data, vorbis, 6) == 0; -} - -// called from setup only, once per code book -// (formula implied by specification) -static int lookup1_values(int entries, int dim) -{ - int r = (int) floor(exp((float) log((float) entries) / dim)); - if ((int) floor(pow((float) r+1, dim)) <= entries) // (int) cast for MinGW warning; - ++r; // floor() to avoid _ftol() when non-CRT - if (pow((float) r+1, dim) <= entries) - return -1; - if ((int) floor(pow((float) r, dim)) > entries) - return -1; - return r; -} - -// called twice per file -static void compute_twiddle_factors(int n, float *A, float *B, float *C) -{ - int n4 = n >> 2, n8 = n >> 3; - int k,k2; - - for (k=k2=0; k < n4; ++k,k2+=2) { - A[k2 ] = (float) cos(4*k*M_PI/n); - A[k2+1] = (float) -sin(4*k*M_PI/n); - B[k2 ] = (float) cos((k2+1)*M_PI/n/2) * 0.5f; - B[k2+1] = (float) sin((k2+1)*M_PI/n/2) * 0.5f; - } - for (k=k2=0; k < n8; ++k,k2+=2) { - C[k2 ] = (float) cos(2*(k2+1)*M_PI/n); - C[k2+1] = (float) -sin(2*(k2+1)*M_PI/n); - } -} - -static void compute_window(int n, float *window) -{ - int n2 = n >> 1, i; - for (i=0; i < n2; ++i) - window[i] = (float) sin(0.5 * M_PI * square((float) sin((i - 0 + 0.5) / n2 * 0.5 * M_PI))); -} - -static void compute_bitreverse(int n, uint16 *rev) -{ - int ld = ilog(n) - 1; // ilog is off-by-one from normal definitions - int i, n8 = n >> 3; - for (i=0; i < n8; ++i) - rev[i] = (bit_reverse(i) >> (32-ld+3)) << 2; -} - -static int init_blocksize(vorb *f, int b, int n) -{ - int n2 = n >> 1, n4 = n >> 2, n8 = n >> 3; - f->A[b] = (float *) setup_malloc(f, sizeof(float) * n2); - f->B[b] = (float *) setup_malloc(f, sizeof(float) * n2); - f->C[b] = (float *) setup_malloc(f, sizeof(float) * n4); - if (!f->A[b] || !f->B[b] || !f->C[b]) return error(f, VORBIS_outofmem); - compute_twiddle_factors(n, f->A[b], f->B[b], f->C[b]); - f->window[b] = (float *) setup_malloc(f, sizeof(float) * n2); - if (!f->window[b]) return error(f, VORBIS_outofmem); - compute_window(n, f->window[b]); - f->bit_reverse[b] = (uint16 *) setup_malloc(f, sizeof(uint16) * n8); - if (!f->bit_reverse[b]) return error(f, VORBIS_outofmem); - compute_bitreverse(n, f->bit_reverse[b]); - return TRUE; -} - -static void neighbors(uint16 *x, int n, int *plow, int *phigh) -{ - int low = -1; - int high = 65536; - int i; - for (i=0; i < n; ++i) { - if (x[i] > low && x[i] < x[n]) { *plow = i; low = x[i]; } - if (x[i] < high && x[i] > x[n]) { *phigh = i; high = x[i]; } - } -} - -// this has been repurposed so y is now the original index instead of y -typedef struct -{ - uint16 x,id; -} stbv__floor_ordering; - -static int STBV_CDECL point_compare(const void *p, const void *q) -{ - stbv__floor_ordering *a = (stbv__floor_ordering *) p; - stbv__floor_ordering *b = (stbv__floor_ordering *) q; - return a->x < b->x ? -1 : a->x > b->x; -} - -// -/////////////////////// END LEAF SETUP FUNCTIONS ////////////////////////// - - -#if defined(STB_VORBIS_NO_STDIO) - #define USE_MEMORY(z) TRUE -#else - #define USE_MEMORY(z) ((z)->stream) -#endif - -static uint8 get8(vorb *z) -{ - if (USE_MEMORY(z)) { - if (z->stream >= z->stream_end) { z->eof = TRUE; return 0; } - return *z->stream++; - } - - #ifndef STB_VORBIS_NO_STDIO - { - int c = fgetc(z->f); - if (c == EOF) { z->eof = TRUE; return 0; } - return c; - } - #endif -} - -static uint32 get32(vorb *f) -{ - uint32 x; - x = get8(f); - x += get8(f) << 8; - x += get8(f) << 16; - x += (uint32) get8(f) << 24; - return x; -} - -static int getn(vorb *z, uint8 *data, int n) -{ - if (USE_MEMORY(z)) { - if (z->stream+n > z->stream_end) { z->eof = 1; return 0; } - memcpy(data, z->stream, n); - z->stream += n; - return 1; - } - - #ifndef STB_VORBIS_NO_STDIO - if (fread(data, n, 1, z->f) == 1) - return 1; - else { - z->eof = 1; - return 0; - } - #endif -} - -static void skip(vorb *z, int n) -{ - if (USE_MEMORY(z)) { - z->stream += n; - if (z->stream >= z->stream_end) z->eof = 1; - return; - } - #ifndef STB_VORBIS_NO_STDIO - { - long x = ftell(z->f); - fseek(z->f, x+n, SEEK_SET); - } - #endif -} - -static int set_file_offset(stb_vorbis *f, unsigned int loc) -{ - #ifndef STB_VORBIS_NO_PUSHDATA_API - if (f->push_mode) return 0; - #endif - f->eof = 0; - if (USE_MEMORY(f)) { - if (f->stream_start + loc >= f->stream_end || f->stream_start + loc < f->stream_start) { - f->stream = f->stream_end; - f->eof = 1; - return 0; - } else { - f->stream = f->stream_start + loc; - return 1; - } - } - #ifndef STB_VORBIS_NO_STDIO - if (loc + f->f_start < loc || loc >= 0x80000000) { - loc = 0x7fffffff; - f->eof = 1; - } else { - loc += f->f_start; - } - if (!fseek(f->f, loc, SEEK_SET)) - return 1; - f->eof = 1; - fseek(f->f, f->f_start, SEEK_END); - return 0; - #endif -} - - -static uint8 ogg_page_header[4] = { 0x4f, 0x67, 0x67, 0x53 }; - -static int capture_pattern(vorb *f) -{ - if (0x4f != get8(f)) return FALSE; - if (0x67 != get8(f)) return FALSE; - if (0x67 != get8(f)) return FALSE; - if (0x53 != get8(f)) return FALSE; - return TRUE; -} - -#define PAGEFLAG_continued_packet 1 -#define PAGEFLAG_first_page 2 -#define PAGEFLAG_last_page 4 - -static int start_page_no_capturepattern(vorb *f) -{ - uint32 loc0,loc1,n; - if (f->first_decode && !IS_PUSH_MODE(f)) { - f->p_first.page_start = stb_vorbis_get_file_offset(f) - 4; - } - // stream structure version - if (0 != get8(f)) return error(f, VORBIS_invalid_stream_structure_version); - // header flag - f->page_flag = get8(f); - // absolute granule position - loc0 = get32(f); - loc1 = get32(f); - // @TODO: validate loc0,loc1 as valid positions? - // stream serial number -- vorbis doesn't interleave, so discard - get32(f); - //if (f->serial != get32(f)) return error(f, VORBIS_incorrect_stream_serial_number); - // page sequence number - n = get32(f); - f->last_page = n; - // CRC32 - get32(f); - // page_segments - f->segment_count = get8(f); - if (!getn(f, f->segments, f->segment_count)) - return error(f, VORBIS_unexpected_eof); - // assume we _don't_ know any the sample position of any segments - f->end_seg_with_known_loc = -2; - if (loc0 != ~0U || loc1 != ~0U) { - int i; - // determine which packet is the last one that will complete - for (i=f->segment_count-1; i >= 0; --i) - if (f->segments[i] < 255) - break; - // 'i' is now the index of the _last_ segment of a packet that ends - if (i >= 0) { - f->end_seg_with_known_loc = i; - f->known_loc_for_packet = loc0; - } - } - if (f->first_decode) { - int i,len; - len = 0; - for (i=0; i < f->segment_count; ++i) - len += f->segments[i]; - len += 27 + f->segment_count; - f->p_first.page_end = f->p_first.page_start + len; - f->p_first.last_decoded_sample = loc0; - } - f->next_seg = 0; - return TRUE; -} - -static int start_page(vorb *f) -{ - if (!capture_pattern(f)) return error(f, VORBIS_missing_capture_pattern); - return start_page_no_capturepattern(f); -} - -static int start_packet(vorb *f) -{ - while (f->next_seg == -1) { - if (!start_page(f)) return FALSE; - if (f->page_flag & PAGEFLAG_continued_packet) - return error(f, VORBIS_continued_packet_flag_invalid); - } - f->last_seg = FALSE; - f->valid_bits = 0; - f->packet_bytes = 0; - f->bytes_in_seg = 0; - // f->next_seg is now valid - return TRUE; -} - -static int maybe_start_packet(vorb *f) -{ - if (f->next_seg == -1) { - int x = get8(f); - if (f->eof) return FALSE; // EOF at page boundary is not an error! - if (0x4f != x ) return error(f, VORBIS_missing_capture_pattern); - if (0x67 != get8(f)) return error(f, VORBIS_missing_capture_pattern); - if (0x67 != get8(f)) return error(f, VORBIS_missing_capture_pattern); - if (0x53 != get8(f)) return error(f, VORBIS_missing_capture_pattern); - if (!start_page_no_capturepattern(f)) return FALSE; - if (f->page_flag & PAGEFLAG_continued_packet) { - // set up enough state that we can read this packet if we want, - // e.g. during recovery - f->last_seg = FALSE; - f->bytes_in_seg = 0; - return error(f, VORBIS_continued_packet_flag_invalid); - } - } - return start_packet(f); -} - -static int next_segment(vorb *f) -{ - int len; - if (f->last_seg) return 0; - if (f->next_seg == -1) { - f->last_seg_which = f->segment_count-1; // in case start_page fails - if (!start_page(f)) { f->last_seg = 1; return 0; } - if (!(f->page_flag & PAGEFLAG_continued_packet)) return error(f, VORBIS_continued_packet_flag_invalid); - } - len = f->segments[f->next_seg++]; - if (len < 255) { - f->last_seg = TRUE; - f->last_seg_which = f->next_seg-1; - } - if (f->next_seg >= f->segment_count) - f->next_seg = -1; - assert(f->bytes_in_seg == 0); - f->bytes_in_seg = len; - return len; -} - -#define EOP (-1) -#define INVALID_BITS (-1) - -static int get8_packet_raw(vorb *f) -{ - if (!f->bytes_in_seg) { // CLANG! - if (f->last_seg) return EOP; - else if (!next_segment(f)) return EOP; - } - assert(f->bytes_in_seg > 0); - --f->bytes_in_seg; - ++f->packet_bytes; - return get8(f); -} - -static int get8_packet(vorb *f) -{ - int x = get8_packet_raw(f); - f->valid_bits = 0; - return x; -} - -static int get32_packet(vorb *f) -{ - uint32 x; - x = get8_packet(f); - x += get8_packet(f) << 8; - x += get8_packet(f) << 16; - x += (uint32) get8_packet(f) << 24; - return x; -} - -static void flush_packet(vorb *f) -{ - while (get8_packet_raw(f) != EOP); -} - -// @OPTIMIZE: this is the secondary bit decoder, so it's probably not as important -// as the huffman decoder? -static uint32 get_bits(vorb *f, int n) -{ - uint32 z; - - if (f->valid_bits < 0) return 0; - if (f->valid_bits < n) { - if (n > 24) { - // the accumulator technique below would not work correctly in this case - z = get_bits(f, 24); - z += get_bits(f, n-24) << 24; - return z; - } - if (f->valid_bits == 0) f->acc = 0; - while (f->valid_bits < n) { - int z = get8_packet_raw(f); - if (z == EOP) { - f->valid_bits = INVALID_BITS; - return 0; - } - f->acc += z << f->valid_bits; - f->valid_bits += 8; - } - } - - assert(f->valid_bits >= n); - z = f->acc & ((1 << n)-1); - f->acc >>= n; - f->valid_bits -= n; - return z; -} - -// @OPTIMIZE: primary accumulator for huffman -// expand the buffer to as many bits as possible without reading off end of packet -// it might be nice to allow f->valid_bits and f->acc to be stored in registers, -// e.g. cache them locally and decode locally -static __forceinline void prep_huffman(vorb *f) -{ - if (f->valid_bits <= 24) { - if (f->valid_bits == 0) f->acc = 0; - do { - int z; - if (f->last_seg && !f->bytes_in_seg) return; - z = get8_packet_raw(f); - if (z == EOP) return; - f->acc += (unsigned) z << f->valid_bits; - f->valid_bits += 8; - } while (f->valid_bits <= 24); - } -} - -enum -{ - VORBIS_packet_id = 1, - VORBIS_packet_comment = 3, - VORBIS_packet_setup = 5 -}; - -static int codebook_decode_scalar_raw(vorb *f, Codebook *c) -{ - int i; - prep_huffman(f); - - if (c->codewords == NULL && c->sorted_codewords == NULL) - return -1; - - // cases to use binary search: sorted_codewords && !c->codewords - // sorted_codewords && c->entries > 8 - if (c->entries > 8 ? c->sorted_codewords!=NULL : !c->codewords) { - // binary search - uint32 code = bit_reverse(f->acc); - int x=0, n=c->sorted_entries, len; - - while (n > 1) { - // invariant: sc[x] <= code < sc[x+n] - int m = x + (n >> 1); - if (c->sorted_codewords[m] <= code) { - x = m; - n -= (n>>1); - } else { - n >>= 1; - } - } - // x is now the sorted index - if (!c->sparse) x = c->sorted_values[x]; - // x is now sorted index if sparse, or symbol otherwise - len = c->codeword_lengths[x]; - if (f->valid_bits >= len) { - f->acc >>= len; - f->valid_bits -= len; - return x; - } - - f->valid_bits = 0; - return -1; - } - - // if small, linear search - assert(!c->sparse); - for (i=0; i < c->entries; ++i) { - if (c->codeword_lengths[i] == NO_CODE) continue; - if (c->codewords[i] == (f->acc & ((1 << c->codeword_lengths[i])-1))) { - if (f->valid_bits >= c->codeword_lengths[i]) { - f->acc >>= c->codeword_lengths[i]; - f->valid_bits -= c->codeword_lengths[i]; - return i; - } - f->valid_bits = 0; - return -1; - } - } - - error(f, VORBIS_invalid_stream); - f->valid_bits = 0; - return -1; -} - -#ifndef STB_VORBIS_NO_INLINE_DECODE - -#define DECODE_RAW(var, f,c) \ - if (f->valid_bits < STB_VORBIS_FAST_HUFFMAN_LENGTH) \ - prep_huffman(f); \ - var = f->acc & FAST_HUFFMAN_TABLE_MASK; \ - var = c->fast_huffman[var]; \ - if (var >= 0) { \ - int n = c->codeword_lengths[var]; \ - f->acc >>= n; \ - f->valid_bits -= n; \ - if (f->valid_bits < 0) { f->valid_bits = 0; var = -1; } \ - } else { \ - var = codebook_decode_scalar_raw(f,c); \ - } - -#else - -static int codebook_decode_scalar(vorb *f, Codebook *c) -{ - int i; - if (f->valid_bits < STB_VORBIS_FAST_HUFFMAN_LENGTH) - prep_huffman(f); - // fast huffman table lookup - i = f->acc & FAST_HUFFMAN_TABLE_MASK; - i = c->fast_huffman[i]; - if (i >= 0) { - f->acc >>= c->codeword_lengths[i]; - f->valid_bits -= c->codeword_lengths[i]; - if (f->valid_bits < 0) { f->valid_bits = 0; return -1; } - return i; - } - return codebook_decode_scalar_raw(f,c); -} - -#define DECODE_RAW(var,f,c) var = codebook_decode_scalar(f,c); - -#endif - -#define DECODE(var,f,c) \ - DECODE_RAW(var,f,c) \ - if (c->sparse) var = c->sorted_values[var]; - -#ifndef STB_VORBIS_DIVIDES_IN_CODEBOOK - #define DECODE_VQ(var,f,c) DECODE_RAW(var,f,c) -#else - #define DECODE_VQ(var,f,c) DECODE(var,f,c) -#endif - - - - - - -// CODEBOOK_ELEMENT_FAST is an optimization for the CODEBOOK_FLOATS case -// where we avoid one addition -#define CODEBOOK_ELEMENT(c,off) (c->multiplicands[off]) -#define CODEBOOK_ELEMENT_FAST(c,off) (c->multiplicands[off]) -#define CODEBOOK_ELEMENT_BASE(c) (0) - -static int codebook_decode_start(vorb *f, Codebook *c) -{ - int z = -1; - - // type 0 is only legal in a scalar context - if (c->lookup_type == 0) - error(f, VORBIS_invalid_stream); - else { - DECODE_VQ(z,f,c); - if (c->sparse) assert(z < c->sorted_entries); - if (z < 0) { // check for EOP - if (!f->bytes_in_seg) - if (f->last_seg) - return z; - error(f, VORBIS_invalid_stream); - } - } - return z; -} - -static int codebook_decode(vorb *f, Codebook *c, float *output, int len) -{ - int i,z = codebook_decode_start(f,c); - if (z < 0) return FALSE; - if (len > c->dimensions) len = c->dimensions; - -#ifdef STB_VORBIS_DIVIDES_IN_CODEBOOK - if (c->lookup_type == 1) { - float last = CODEBOOK_ELEMENT_BASE(c); - int div = 1; - for (i=0; i < len; ++i) { - int off = (z / div) % c->lookup_values; - float val = CODEBOOK_ELEMENT_FAST(c,off) + last; - output[i] += val; - if (c->sequence_p) last = val + c->minimum_value; - div *= c->lookup_values; - } - return TRUE; - } -#endif - - z *= c->dimensions; - if (c->sequence_p) { - float last = CODEBOOK_ELEMENT_BASE(c); - for (i=0; i < len; ++i) { - float val = CODEBOOK_ELEMENT_FAST(c,z+i) + last; - output[i] += val; - last = val + c->minimum_value; - } - } else { - float last = CODEBOOK_ELEMENT_BASE(c); - for (i=0; i < len; ++i) { - output[i] += CODEBOOK_ELEMENT_FAST(c,z+i) + last; - } - } - - return TRUE; -} - -static int codebook_decode_step(vorb *f, Codebook *c, float *output, int len, int step) -{ - int i,z = codebook_decode_start(f,c); - float last = CODEBOOK_ELEMENT_BASE(c); - if (z < 0) return FALSE; - if (len > c->dimensions) len = c->dimensions; - -#ifdef STB_VORBIS_DIVIDES_IN_CODEBOOK - if (c->lookup_type == 1) { - int div = 1; - for (i=0; i < len; ++i) { - int off = (z / div) % c->lookup_values; - float val = CODEBOOK_ELEMENT_FAST(c,off) + last; - output[i*step] += val; - if (c->sequence_p) last = val; - div *= c->lookup_values; - } - return TRUE; - } -#endif - - z *= c->dimensions; - for (i=0; i < len; ++i) { - float val = CODEBOOK_ELEMENT_FAST(c,z+i) + last; - output[i*step] += val; - if (c->sequence_p) last = val; - } - - return TRUE; -} - -static int codebook_decode_deinterleave_repeat(vorb *f, Codebook *c, float **outputs, int ch, int *c_inter_p, int *p_inter_p, int len, int total_decode) -{ - int c_inter = *c_inter_p; - int p_inter = *p_inter_p; - int i,z, effective = c->dimensions; - - // type 0 is only legal in a scalar context - if (c->lookup_type == 0) return error(f, VORBIS_invalid_stream); - - while (total_decode > 0) { - float last = CODEBOOK_ELEMENT_BASE(c); - DECODE_VQ(z,f,c); - #ifndef STB_VORBIS_DIVIDES_IN_CODEBOOK - assert(!c->sparse || z < c->sorted_entries); - #endif - if (z < 0) { - if (!f->bytes_in_seg) - if (f->last_seg) return FALSE; - return error(f, VORBIS_invalid_stream); - } - - // if this will take us off the end of the buffers, stop short! - // we check by computing the length of the virtual interleaved - // buffer (len*ch), our current offset within it (p_inter*ch)+(c_inter), - // and the length we'll be using (effective) - if (c_inter + p_inter*ch + effective > len * ch) { - effective = len*ch - (p_inter*ch - c_inter); - } - - #ifdef STB_VORBIS_DIVIDES_IN_CODEBOOK - if (c->lookup_type == 1) { - int div = 1; - for (i=0; i < effective; ++i) { - int off = (z / div) % c->lookup_values; - float val = CODEBOOK_ELEMENT_FAST(c,off) + last; - if (outputs[c_inter]) - outputs[c_inter][p_inter] += val; - if (++c_inter == ch) { c_inter = 0; ++p_inter; } - if (c->sequence_p) last = val; - div *= c->lookup_values; - } - } else - #endif - { - z *= c->dimensions; - if (c->sequence_p) { - for (i=0; i < effective; ++i) { - float val = CODEBOOK_ELEMENT_FAST(c,z+i) + last; - if (outputs[c_inter]) - outputs[c_inter][p_inter] += val; - if (++c_inter == ch) { c_inter = 0; ++p_inter; } - last = val; - } - } else { - for (i=0; i < effective; ++i) { - float val = CODEBOOK_ELEMENT_FAST(c,z+i) + last; - if (outputs[c_inter]) - outputs[c_inter][p_inter] += val; - if (++c_inter == ch) { c_inter = 0; ++p_inter; } - } - } - } - - total_decode -= effective; - } - *c_inter_p = c_inter; - *p_inter_p = p_inter; - return TRUE; -} - -static int predict_point(int x, int x0, int x1, int y0, int y1) -{ - int dy = y1 - y0; - int adx = x1 - x0; - // @OPTIMIZE: force int division to round in the right direction... is this necessary on x86? - int err = abs(dy) * (x - x0); - int off = err / adx; - return dy < 0 ? y0 - off : y0 + off; -} - -// the following table is block-copied from the specification -static float inverse_db_table[256] = -{ - 1.0649863e-07f, 1.1341951e-07f, 1.2079015e-07f, 1.2863978e-07f, - 1.3699951e-07f, 1.4590251e-07f, 1.5538408e-07f, 1.6548181e-07f, - 1.7623575e-07f, 1.8768855e-07f, 1.9988561e-07f, 2.1287530e-07f, - 2.2670913e-07f, 2.4144197e-07f, 2.5713223e-07f, 2.7384213e-07f, - 2.9163793e-07f, 3.1059021e-07f, 3.3077411e-07f, 3.5226968e-07f, - 3.7516214e-07f, 3.9954229e-07f, 4.2550680e-07f, 4.5315863e-07f, - 4.8260743e-07f, 5.1396998e-07f, 5.4737065e-07f, 5.8294187e-07f, - 6.2082472e-07f, 6.6116941e-07f, 7.0413592e-07f, 7.4989464e-07f, - 7.9862701e-07f, 8.5052630e-07f, 9.0579828e-07f, 9.6466216e-07f, - 1.0273513e-06f, 1.0941144e-06f, 1.1652161e-06f, 1.2409384e-06f, - 1.3215816e-06f, 1.4074654e-06f, 1.4989305e-06f, 1.5963394e-06f, - 1.7000785e-06f, 1.8105592e-06f, 1.9282195e-06f, 2.0535261e-06f, - 2.1869758e-06f, 2.3290978e-06f, 2.4804557e-06f, 2.6416497e-06f, - 2.8133190e-06f, 2.9961443e-06f, 3.1908506e-06f, 3.3982101e-06f, - 3.6190449e-06f, 3.8542308e-06f, 4.1047004e-06f, 4.3714470e-06f, - 4.6555282e-06f, 4.9580707e-06f, 5.2802740e-06f, 5.6234160e-06f, - 5.9888572e-06f, 6.3780469e-06f, 6.7925283e-06f, 7.2339451e-06f, - 7.7040476e-06f, 8.2047000e-06f, 8.7378876e-06f, 9.3057248e-06f, - 9.9104632e-06f, 1.0554501e-05f, 1.1240392e-05f, 1.1970856e-05f, - 1.2748789e-05f, 1.3577278e-05f, 1.4459606e-05f, 1.5399272e-05f, - 1.6400004e-05f, 1.7465768e-05f, 1.8600792e-05f, 1.9809576e-05f, - 2.1096914e-05f, 2.2467911e-05f, 2.3928002e-05f, 2.5482978e-05f, - 2.7139006e-05f, 2.8902651e-05f, 3.0780908e-05f, 3.2781225e-05f, - 3.4911534e-05f, 3.7180282e-05f, 3.9596466e-05f, 4.2169667e-05f, - 4.4910090e-05f, 4.7828601e-05f, 5.0936773e-05f, 5.4246931e-05f, - 5.7772202e-05f, 6.1526565e-05f, 6.5524908e-05f, 6.9783085e-05f, - 7.4317983e-05f, 7.9147585e-05f, 8.4291040e-05f, 8.9768747e-05f, - 9.5602426e-05f, 0.00010181521f, 0.00010843174f, 0.00011547824f, - 0.00012298267f, 0.00013097477f, 0.00013948625f, 0.00014855085f, - 0.00015820453f, 0.00016848555f, 0.00017943469f, 0.00019109536f, - 0.00020351382f, 0.00021673929f, 0.00023082423f, 0.00024582449f, - 0.00026179955f, 0.00027881276f, 0.00029693158f, 0.00031622787f, - 0.00033677814f, 0.00035866388f, 0.00038197188f, 0.00040679456f, - 0.00043323036f, 0.00046138411f, 0.00049136745f, 0.00052329927f, - 0.00055730621f, 0.00059352311f, 0.00063209358f, 0.00067317058f, - 0.00071691700f, 0.00076350630f, 0.00081312324f, 0.00086596457f, - 0.00092223983f, 0.00098217216f, 0.0010459992f, 0.0011139742f, - 0.0011863665f, 0.0012634633f, 0.0013455702f, 0.0014330129f, - 0.0015261382f, 0.0016253153f, 0.0017309374f, 0.0018434235f, - 0.0019632195f, 0.0020908006f, 0.0022266726f, 0.0023713743f, - 0.0025254795f, 0.0026895994f, 0.0028643847f, 0.0030505286f, - 0.0032487691f, 0.0034598925f, 0.0036847358f, 0.0039241906f, - 0.0041792066f, 0.0044507950f, 0.0047400328f, 0.0050480668f, - 0.0053761186f, 0.0057254891f, 0.0060975636f, 0.0064938176f, - 0.0069158225f, 0.0073652516f, 0.0078438871f, 0.0083536271f, - 0.0088964928f, 0.009474637f, 0.010090352f, 0.010746080f, - 0.011444421f, 0.012188144f, 0.012980198f, 0.013823725f, - 0.014722068f, 0.015678791f, 0.016697687f, 0.017782797f, - 0.018938423f, 0.020169149f, 0.021479854f, 0.022875735f, - 0.024362330f, 0.025945531f, 0.027631618f, 0.029427276f, - 0.031339626f, 0.033376252f, 0.035545228f, 0.037855157f, - 0.040315199f, 0.042935108f, 0.045725273f, 0.048696758f, - 0.051861348f, 0.055231591f, 0.058820850f, 0.062643361f, - 0.066714279f, 0.071049749f, 0.075666962f, 0.080584227f, - 0.085821044f, 0.091398179f, 0.097337747f, 0.10366330f, - 0.11039993f, 0.11757434f, 0.12521498f, 0.13335215f, - 0.14201813f, 0.15124727f, 0.16107617f, 0.17154380f, - 0.18269168f, 0.19456402f, 0.20720788f, 0.22067342f, - 0.23501402f, 0.25028656f, 0.26655159f, 0.28387361f, - 0.30232132f, 0.32196786f, 0.34289114f, 0.36517414f, - 0.38890521f, 0.41417847f, 0.44109412f, 0.46975890f, - 0.50028648f, 0.53279791f, 0.56742212f, 0.60429640f, - 0.64356699f, 0.68538959f, 0.72993007f, 0.77736504f, - 0.82788260f, 0.88168307f, 0.9389798f, 1.0f -}; - - -// @OPTIMIZE: if you want to replace this bresenham line-drawing routine, -// note that you must produce bit-identical output to decode correctly; -// this specific sequence of operations is specified in the spec (it's -// drawing integer-quantized frequency-space lines that the encoder -// expects to be exactly the same) -// ... also, isn't the whole point of Bresenham's algorithm to NOT -// have to divide in the setup? sigh. -#ifndef STB_VORBIS_NO_DEFER_FLOOR -#define LINE_OP(a,b) a *= b -#else -#define LINE_OP(a,b) a = b -#endif - -#ifdef STB_VORBIS_DIVIDE_TABLE -#define DIVTAB_NUMER 32 -#define DIVTAB_DENOM 64 -int8 integer_divide_table[DIVTAB_NUMER][DIVTAB_DENOM]; // 2KB -#endif - -static __forceinline void draw_line(float *output, int x0, int y0, int x1, int y1, int n) -{ - int dy = y1 - y0; - int adx = x1 - x0; - int ady = abs(dy); - int base; - int x=x0,y=y0; - int err = 0; - int sy; - -#ifdef STB_VORBIS_DIVIDE_TABLE - if (adx < DIVTAB_DENOM && ady < DIVTAB_NUMER) { - if (dy < 0) { - base = -integer_divide_table[ady][adx]; - sy = base-1; - } else { - base = integer_divide_table[ady][adx]; - sy = base+1; - } - } else { - base = dy / adx; - if (dy < 0) - sy = base - 1; - else - sy = base+1; - } -#else - base = dy / adx; - if (dy < 0) - sy = base - 1; - else - sy = base+1; -#endif - ady -= abs(base) * adx; - if (x1 > n) x1 = n; - if (x < x1) { - LINE_OP(output[x], inverse_db_table[y&255]); - for (++x; x < x1; ++x) { - err += ady; - if (err >= adx) { - err -= adx; - y += sy; - } else - y += base; - LINE_OP(output[x], inverse_db_table[y&255]); - } - } -} - -static int residue_decode(vorb *f, Codebook *book, float *target, int offset, int n, int rtype) -{ - int k; - if (rtype == 0) { - int step = n / book->dimensions; - for (k=0; k < step; ++k) - if (!codebook_decode_step(f, book, target+offset+k, n-offset-k, step)) - return FALSE; - } else { - for (k=0; k < n; ) { - if (!codebook_decode(f, book, target+offset, n-k)) - return FALSE; - k += book->dimensions; - offset += book->dimensions; - } - } - return TRUE; -} - -// n is 1/2 of the blocksize -- -// specification: "Correct per-vector decode length is [n]/2" -static void decode_residue(vorb *f, float *residue_buffers[], int ch, int n, int rn, uint8 *do_not_decode) -{ - int i,j,pass; - Residue *r = f->residue_config + rn; - int rtype = f->residue_types[rn]; - int c = r->classbook; - int classwords = f->codebooks[c].dimensions; - unsigned int actual_size = rtype == 2 ? n*2 : n; - unsigned int limit_r_begin = (r->begin < actual_size ? r->begin : actual_size); - unsigned int limit_r_end = (r->end < actual_size ? r->end : actual_size); - int n_read = limit_r_end - limit_r_begin; - int part_read = n_read / r->part_size; - int temp_alloc_point = temp_alloc_save(f); - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - uint8 ***part_classdata = (uint8 ***) temp_block_array(f,f->channels, part_read * sizeof(**part_classdata)); - #else - int **classifications = (int **) temp_block_array(f,f->channels, part_read * sizeof(**classifications)); - #endif - - CHECK(f); - - for (i=0; i < ch; ++i) - if (!do_not_decode[i]) - memset(residue_buffers[i], 0, sizeof(float) * n); - - if (rtype == 2 && ch != 1) { - for (j=0; j < ch; ++j) - if (!do_not_decode[j]) - break; - if (j == ch) - goto done; - - for (pass=0; pass < 8; ++pass) { - int pcount = 0, class_set = 0; - if (ch == 2) { - while (pcount < part_read) { - int z = r->begin + pcount*r->part_size; - int c_inter = (z & 1), p_inter = z>>1; - if (pass == 0) { - Codebook *c = f->codebooks+r->classbook; - int q; - DECODE(q,f,c); - if (q == EOP) goto done; - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - part_classdata[0][class_set] = r->classdata[q]; - #else - for (i=classwords-1; i >= 0; --i) { - classifications[0][i+pcount] = q % r->classifications; - q /= r->classifications; - } - #endif - } - for (i=0; i < classwords && pcount < part_read; ++i, ++pcount) { - int z = r->begin + pcount*r->part_size; - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - int c = part_classdata[0][class_set][i]; - #else - int c = classifications[0][pcount]; - #endif - int b = r->residue_books[c][pass]; - if (b >= 0) { - Codebook *book = f->codebooks + b; - #ifdef STB_VORBIS_DIVIDES_IN_CODEBOOK - if (!codebook_decode_deinterleave_repeat(f, book, residue_buffers, ch, &c_inter, &p_inter, n, r->part_size)) - goto done; - #else - // saves 1% - if (!codebook_decode_deinterleave_repeat(f, book, residue_buffers, ch, &c_inter, &p_inter, n, r->part_size)) - goto done; - #endif - } else { - z += r->part_size; - c_inter = z & 1; - p_inter = z >> 1; - } - } - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - ++class_set; - #endif - } - } else if (ch > 2) { - while (pcount < part_read) { - int z = r->begin + pcount*r->part_size; - int c_inter = z % ch, p_inter = z/ch; - if (pass == 0) { - Codebook *c = f->codebooks+r->classbook; - int q; - DECODE(q,f,c); - if (q == EOP) goto done; - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - part_classdata[0][class_set] = r->classdata[q]; - #else - for (i=classwords-1; i >= 0; --i) { - classifications[0][i+pcount] = q % r->classifications; - q /= r->classifications; - } - #endif - } - for (i=0; i < classwords && pcount < part_read; ++i, ++pcount) { - int z = r->begin + pcount*r->part_size; - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - int c = part_classdata[0][class_set][i]; - #else - int c = classifications[0][pcount]; - #endif - int b = r->residue_books[c][pass]; - if (b >= 0) { - Codebook *book = f->codebooks + b; - if (!codebook_decode_deinterleave_repeat(f, book, residue_buffers, ch, &c_inter, &p_inter, n, r->part_size)) - goto done; - } else { - z += r->part_size; - c_inter = z % ch; - p_inter = z / ch; - } - } - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - ++class_set; - #endif - } - } - } - goto done; - } - CHECK(f); - - for (pass=0; pass < 8; ++pass) { - int pcount = 0, class_set=0; - while (pcount < part_read) { - if (pass == 0) { - for (j=0; j < ch; ++j) { - if (!do_not_decode[j]) { - Codebook *c = f->codebooks+r->classbook; - int temp; - DECODE(temp,f,c); - if (temp == EOP) goto done; - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - part_classdata[j][class_set] = r->classdata[temp]; - #else - for (i=classwords-1; i >= 0; --i) { - classifications[j][i+pcount] = temp % r->classifications; - temp /= r->classifications; - } - #endif - } - } - } - for (i=0; i < classwords && pcount < part_read; ++i, ++pcount) { - for (j=0; j < ch; ++j) { - if (!do_not_decode[j]) { - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - int c = part_classdata[j][class_set][i]; - #else - int c = classifications[j][pcount]; - #endif - int b = r->residue_books[c][pass]; - if (b >= 0) { - float *target = residue_buffers[j]; - int offset = r->begin + pcount * r->part_size; - int n = r->part_size; - Codebook *book = f->codebooks + b; - if (!residue_decode(f, book, target, offset, n, rtype)) - goto done; - } - } - } - } - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - ++class_set; - #endif - } - } - done: - CHECK(f); - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - temp_free(f,part_classdata); - #else - temp_free(f,classifications); - #endif - temp_alloc_restore(f,temp_alloc_point); -} - - -#if 0 -// slow way for debugging -void inverse_mdct_slow(float *buffer, int n) -{ - int i,j; - int n2 = n >> 1; - float *x = (float *) malloc(sizeof(*x) * n2); - memcpy(x, buffer, sizeof(*x) * n2); - for (i=0; i < n; ++i) { - float acc = 0; - for (j=0; j < n2; ++j) - // formula from paper: - //acc += n/4.0f * x[j] * (float) cos(M_PI / 2 / n * (2 * i + 1 + n/2.0)*(2*j+1)); - // formula from wikipedia - //acc += 2.0f / n2 * x[j] * (float) cos(M_PI/n2 * (i + 0.5 + n2/2)*(j + 0.5)); - // these are equivalent, except the formula from the paper inverts the multiplier! - // however, what actually works is NO MULTIPLIER!?! - //acc += 64 * 2.0f / n2 * x[j] * (float) cos(M_PI/n2 * (i + 0.5 + n2/2)*(j + 0.5)); - acc += x[j] * (float) cos(M_PI / 2 / n * (2 * i + 1 + n/2.0)*(2*j+1)); - buffer[i] = acc; - } - free(x); -} -#elif 0 -// same as above, but just barely able to run in real time on modern machines -void inverse_mdct_slow(float *buffer, int n, vorb *f, int blocktype) -{ - float mcos[16384]; - int i,j; - int n2 = n >> 1, nmask = (n << 2) -1; - float *x = (float *) malloc(sizeof(*x) * n2); - memcpy(x, buffer, sizeof(*x) * n2); - for (i=0; i < 4*n; ++i) - mcos[i] = (float) cos(M_PI / 2 * i / n); - - for (i=0; i < n; ++i) { - float acc = 0; - for (j=0; j < n2; ++j) - acc += x[j] * mcos[(2 * i + 1 + n2)*(2*j+1) & nmask]; - buffer[i] = acc; - } - free(x); -} -#elif 0 -// transform to use a slow dct-iv; this is STILL basically trivial, -// but only requires half as many ops -void dct_iv_slow(float *buffer, int n) -{ - float mcos[16384]; - float x[2048]; - int i,j; - int n2 = n >> 1, nmask = (n << 3) - 1; - memcpy(x, buffer, sizeof(*x) * n); - for (i=0; i < 8*n; ++i) - mcos[i] = (float) cos(M_PI / 4 * i / n); - for (i=0; i < n; ++i) { - float acc = 0; - for (j=0; j < n; ++j) - acc += x[j] * mcos[((2 * i + 1)*(2*j+1)) & nmask]; - buffer[i] = acc; - } -} - -void inverse_mdct_slow(float *buffer, int n, vorb *f, int blocktype) -{ - int i, n4 = n >> 2, n2 = n >> 1, n3_4 = n - n4; - float temp[4096]; - - memcpy(temp, buffer, n2 * sizeof(float)); - dct_iv_slow(temp, n2); // returns -c'-d, a-b' - - for (i=0; i < n4 ; ++i) buffer[i] = temp[i+n4]; // a-b' - for ( ; i < n3_4; ++i) buffer[i] = -temp[n3_4 - i - 1]; // b-a', c+d' - for ( ; i < n ; ++i) buffer[i] = -temp[i - n3_4]; // c'+d -} -#endif - -#ifndef LIBVORBIS_MDCT -#define LIBVORBIS_MDCT 0 -#endif - -#if LIBVORBIS_MDCT -// directly call the vorbis MDCT using an interface documented -// by Jeff Roberts... useful for performance comparison -typedef struct -{ - int n; - int log2n; - - float *trig; - int *bitrev; - - float scale; -} mdct_lookup; - -extern void mdct_init(mdct_lookup *lookup, int n); -extern void mdct_clear(mdct_lookup *l); -extern void mdct_backward(mdct_lookup *init, float *in, float *out); - -mdct_lookup M1,M2; - -void inverse_mdct(float *buffer, int n, vorb *f, int blocktype) -{ - mdct_lookup *M; - if (M1.n == n) M = &M1; - else if (M2.n == n) M = &M2; - else if (M1.n == 0) { mdct_init(&M1, n); M = &M1; } - else { - if (M2.n) __asm int 3; - mdct_init(&M2, n); - M = &M2; - } - - mdct_backward(M, buffer, buffer); -} -#endif - - -// the following were split out into separate functions while optimizing; -// they could be pushed back up but eh. __forceinline showed no change; -// they're probably already being inlined. -static void imdct_step3_iter0_loop(int n, float *e, int i_off, int k_off, float *A) -{ - float *ee0 = e + i_off; - float *ee2 = ee0 + k_off; - int i; - - assert((n & 3) == 0); - for (i=(n>>2); i > 0; --i) { - float k00_20, k01_21; - k00_20 = ee0[ 0] - ee2[ 0]; - k01_21 = ee0[-1] - ee2[-1]; - ee0[ 0] += ee2[ 0];//ee0[ 0] = ee0[ 0] + ee2[ 0]; - ee0[-1] += ee2[-1];//ee0[-1] = ee0[-1] + ee2[-1]; - ee2[ 0] = k00_20 * A[0] - k01_21 * A[1]; - ee2[-1] = k01_21 * A[0] + k00_20 * A[1]; - A += 8; - - k00_20 = ee0[-2] - ee2[-2]; - k01_21 = ee0[-3] - ee2[-3]; - ee0[-2] += ee2[-2];//ee0[-2] = ee0[-2] + ee2[-2]; - ee0[-3] += ee2[-3];//ee0[-3] = ee0[-3] + ee2[-3]; - ee2[-2] = k00_20 * A[0] - k01_21 * A[1]; - ee2[-3] = k01_21 * A[0] + k00_20 * A[1]; - A += 8; - - k00_20 = ee0[-4] - ee2[-4]; - k01_21 = ee0[-5] - ee2[-5]; - ee0[-4] += ee2[-4];//ee0[-4] = ee0[-4] + ee2[-4]; - ee0[-5] += ee2[-5];//ee0[-5] = ee0[-5] + ee2[-5]; - ee2[-4] = k00_20 * A[0] - k01_21 * A[1]; - ee2[-5] = k01_21 * A[0] + k00_20 * A[1]; - A += 8; - - k00_20 = ee0[-6] - ee2[-6]; - k01_21 = ee0[-7] - ee2[-7]; - ee0[-6] += ee2[-6];//ee0[-6] = ee0[-6] + ee2[-6]; - ee0[-7] += ee2[-7];//ee0[-7] = ee0[-7] + ee2[-7]; - ee2[-6] = k00_20 * A[0] - k01_21 * A[1]; - ee2[-7] = k01_21 * A[0] + k00_20 * A[1]; - A += 8; - ee0 -= 8; - ee2 -= 8; - } -} - -static void imdct_step3_inner_r_loop(int lim, float *e, int d0, int k_off, float *A, int k1) -{ - int i; - float k00_20, k01_21; - - float *e0 = e + d0; - float *e2 = e0 + k_off; - - for (i=lim >> 2; i > 0; --i) { - k00_20 = e0[-0] - e2[-0]; - k01_21 = e0[-1] - e2[-1]; - e0[-0] += e2[-0];//e0[-0] = e0[-0] + e2[-0]; - e0[-1] += e2[-1];//e0[-1] = e0[-1] + e2[-1]; - e2[-0] = (k00_20)*A[0] - (k01_21) * A[1]; - e2[-1] = (k01_21)*A[0] + (k00_20) * A[1]; - - A += k1; - - k00_20 = e0[-2] - e2[-2]; - k01_21 = e0[-3] - e2[-3]; - e0[-2] += e2[-2];//e0[-2] = e0[-2] + e2[-2]; - e0[-3] += e2[-3];//e0[-3] = e0[-3] + e2[-3]; - e2[-2] = (k00_20)*A[0] - (k01_21) * A[1]; - e2[-3] = (k01_21)*A[0] + (k00_20) * A[1]; - - A += k1; - - k00_20 = e0[-4] - e2[-4]; - k01_21 = e0[-5] - e2[-5]; - e0[-4] += e2[-4];//e0[-4] = e0[-4] + e2[-4]; - e0[-5] += e2[-5];//e0[-5] = e0[-5] + e2[-5]; - e2[-4] = (k00_20)*A[0] - (k01_21) * A[1]; - e2[-5] = (k01_21)*A[0] + (k00_20) * A[1]; - - A += k1; - - k00_20 = e0[-6] - e2[-6]; - k01_21 = e0[-7] - e2[-7]; - e0[-6] += e2[-6];//e0[-6] = e0[-6] + e2[-6]; - e0[-7] += e2[-7];//e0[-7] = e0[-7] + e2[-7]; - e2[-6] = (k00_20)*A[0] - (k01_21) * A[1]; - e2[-7] = (k01_21)*A[0] + (k00_20) * A[1]; - - e0 -= 8; - e2 -= 8; - - A += k1; - } -} - -static void imdct_step3_inner_s_loop(int n, float *e, int i_off, int k_off, float *A, int a_off, int k0) -{ - int i; - float A0 = A[0]; - float A1 = A[0+1]; - float A2 = A[0+a_off]; - float A3 = A[0+a_off+1]; - float A4 = A[0+a_off*2+0]; - float A5 = A[0+a_off*2+1]; - float A6 = A[0+a_off*3+0]; - float A7 = A[0+a_off*3+1]; - - float k00,k11; - - float *ee0 = e +i_off; - float *ee2 = ee0+k_off; - - for (i=n; i > 0; --i) { - k00 = ee0[ 0] - ee2[ 0]; - k11 = ee0[-1] - ee2[-1]; - ee0[ 0] = ee0[ 0] + ee2[ 0]; - ee0[-1] = ee0[-1] + ee2[-1]; - ee2[ 0] = (k00) * A0 - (k11) * A1; - ee2[-1] = (k11) * A0 + (k00) * A1; - - k00 = ee0[-2] - ee2[-2]; - k11 = ee0[-3] - ee2[-3]; - ee0[-2] = ee0[-2] + ee2[-2]; - ee0[-3] = ee0[-3] + ee2[-3]; - ee2[-2] = (k00) * A2 - (k11) * A3; - ee2[-3] = (k11) * A2 + (k00) * A3; - - k00 = ee0[-4] - ee2[-4]; - k11 = ee0[-5] - ee2[-5]; - ee0[-4] = ee0[-4] + ee2[-4]; - ee0[-5] = ee0[-5] + ee2[-5]; - ee2[-4] = (k00) * A4 - (k11) * A5; - ee2[-5] = (k11) * A4 + (k00) * A5; - - k00 = ee0[-6] - ee2[-6]; - k11 = ee0[-7] - ee2[-7]; - ee0[-6] = ee0[-6] + ee2[-6]; - ee0[-7] = ee0[-7] + ee2[-7]; - ee2[-6] = (k00) * A6 - (k11) * A7; - ee2[-7] = (k11) * A6 + (k00) * A7; - - ee0 -= k0; - ee2 -= k0; - } -} - -static __forceinline void iter_54(float *z) -{ - float k00,k11,k22,k33; - float y0,y1,y2,y3; - - k00 = z[ 0] - z[-4]; - y0 = z[ 0] + z[-4]; - y2 = z[-2] + z[-6]; - k22 = z[-2] - z[-6]; - - z[-0] = y0 + y2; // z0 + z4 + z2 + z6 - z[-2] = y0 - y2; // z0 + z4 - z2 - z6 - - // done with y0,y2 - - k33 = z[-3] - z[-7]; - - z[-4] = k00 + k33; // z0 - z4 + z3 - z7 - z[-6] = k00 - k33; // z0 - z4 - z3 + z7 - - // done with k33 - - k11 = z[-1] - z[-5]; - y1 = z[-1] + z[-5]; - y3 = z[-3] + z[-7]; - - z[-1] = y1 + y3; // z1 + z5 + z3 + z7 - z[-3] = y1 - y3; // z1 + z5 - z3 - z7 - z[-5] = k11 - k22; // z1 - z5 + z2 - z6 - z[-7] = k11 + k22; // z1 - z5 - z2 + z6 -} - -static void imdct_step3_inner_s_loop_ld654(int n, float *e, int i_off, float *A, int base_n) -{ - int a_off = base_n >> 3; - float A2 = A[0+a_off]; - float *z = e + i_off; - float *base = z - 16 * n; - - while (z > base) { - float k00,k11; - - k00 = z[-0] - z[-8]; - k11 = z[-1] - z[-9]; - z[-0] = z[-0] + z[-8]; - z[-1] = z[-1] + z[-9]; - z[-8] = k00; - z[-9] = k11 ; - - k00 = z[ -2] - z[-10]; - k11 = z[ -3] - z[-11]; - z[ -2] = z[ -2] + z[-10]; - z[ -3] = z[ -3] + z[-11]; - z[-10] = (k00+k11) * A2; - z[-11] = (k11-k00) * A2; - - k00 = z[-12] - z[ -4]; // reverse to avoid a unary negation - k11 = z[ -5] - z[-13]; - z[ -4] = z[ -4] + z[-12]; - z[ -5] = z[ -5] + z[-13]; - z[-12] = k11; - z[-13] = k00; - - k00 = z[-14] - z[ -6]; // reverse to avoid a unary negation - k11 = z[ -7] - z[-15]; - z[ -6] = z[ -6] + z[-14]; - z[ -7] = z[ -7] + z[-15]; - z[-14] = (k00+k11) * A2; - z[-15] = (k00-k11) * A2; - - iter_54(z); - iter_54(z-8); - z -= 16; - } -} - -static void inverse_mdct(float *buffer, int n, vorb *f, int blocktype) -{ - int n2 = n >> 1, n4 = n >> 2, n8 = n >> 3, l; - int ld; - // @OPTIMIZE: reduce register pressure by using fewer variables? - int save_point = temp_alloc_save(f); - float *buf2 = (float *) temp_alloc(f, n2 * sizeof(*buf2)); - float *u=NULL,*v=NULL; - // twiddle factors - float *A = f->A[blocktype]; - - // IMDCT algorithm from "The use of multirate filter banks for coding of high quality digital audio" - // See notes about bugs in that paper in less-optimal implementation 'inverse_mdct_old' after this function. - - // kernel from paper - - - // merged: - // copy and reflect spectral data - // step 0 - - // note that it turns out that the items added together during - // this step are, in fact, being added to themselves (as reflected - // by step 0). inexplicable inefficiency! this became obvious - // once I combined the passes. - - // so there's a missing 'times 2' here (for adding X to itself). - // this propagates through linearly to the end, where the numbers - // are 1/2 too small, and need to be compensated for. - - { - float *d,*e, *AA, *e_stop; - d = &buf2[n2-2]; - AA = A; - e = &buffer[0]; - e_stop = &buffer[n2]; - while (e != e_stop) { - d[1] = (e[0] * AA[0] - e[2]*AA[1]); - d[0] = (e[0] * AA[1] + e[2]*AA[0]); - d -= 2; - AA += 2; - e += 4; - } - - e = &buffer[n2-3]; - while (d >= buf2) { - d[1] = (-e[2] * AA[0] - -e[0]*AA[1]); - d[0] = (-e[2] * AA[1] + -e[0]*AA[0]); - d -= 2; - AA += 2; - e -= 4; - } - } - - // now we use symbolic names for these, so that we can - // possibly swap their meaning as we change which operations - // are in place - - u = buffer; - v = buf2; - - // step 2 (paper output is w, now u) - // this could be in place, but the data ends up in the wrong - // place... _somebody_'s got to swap it, so this is nominated - { - float *AA = &A[n2-8]; - float *d0,*d1, *e0, *e1; - - e0 = &v[n4]; - e1 = &v[0]; - - d0 = &u[n4]; - d1 = &u[0]; - - while (AA >= A) { - float v40_20, v41_21; - - v41_21 = e0[1] - e1[1]; - v40_20 = e0[0] - e1[0]; - d0[1] = e0[1] + e1[1]; - d0[0] = e0[0] + e1[0]; - d1[1] = v41_21*AA[4] - v40_20*AA[5]; - d1[0] = v40_20*AA[4] + v41_21*AA[5]; - - v41_21 = e0[3] - e1[3]; - v40_20 = e0[2] - e1[2]; - d0[3] = e0[3] + e1[3]; - d0[2] = e0[2] + e1[2]; - d1[3] = v41_21*AA[0] - v40_20*AA[1]; - d1[2] = v40_20*AA[0] + v41_21*AA[1]; - - AA -= 8; - - d0 += 4; - d1 += 4; - e0 += 4; - e1 += 4; - } - } - - // step 3 - ld = ilog(n) - 1; // ilog is off-by-one from normal definitions - - // optimized step 3: - - // the original step3 loop can be nested r inside s or s inside r; - // it's written originally as s inside r, but this is dumb when r - // iterates many times, and s few. So I have two copies of it and - // switch between them halfway. - - // this is iteration 0 of step 3 - imdct_step3_iter0_loop(n >> 4, u, n2-1-n4*0, -(n >> 3), A); - imdct_step3_iter0_loop(n >> 4, u, n2-1-n4*1, -(n >> 3), A); - - // this is iteration 1 of step 3 - imdct_step3_inner_r_loop(n >> 5, u, n2-1 - n8*0, -(n >> 4), A, 16); - imdct_step3_inner_r_loop(n >> 5, u, n2-1 - n8*1, -(n >> 4), A, 16); - imdct_step3_inner_r_loop(n >> 5, u, n2-1 - n8*2, -(n >> 4), A, 16); - imdct_step3_inner_r_loop(n >> 5, u, n2-1 - n8*3, -(n >> 4), A, 16); - - l=2; - for (; l < (ld-3)>>1; ++l) { - int k0 = n >> (l+2), k0_2 = k0>>1; - int lim = 1 << (l+1); - int i; - for (i=0; i < lim; ++i) - imdct_step3_inner_r_loop(n >> (l+4), u, n2-1 - k0*i, -k0_2, A, 1 << (l+3)); - } - - for (; l < ld-6; ++l) { - int k0 = n >> (l+2), k1 = 1 << (l+3), k0_2 = k0>>1; - int rlim = n >> (l+6), r; - int lim = 1 << (l+1); - int i_off; - float *A0 = A; - i_off = n2-1; - for (r=rlim; r > 0; --r) { - imdct_step3_inner_s_loop(lim, u, i_off, -k0_2, A0, k1, k0); - A0 += k1*4; - i_off -= 8; - } - } - - // iterations with count: - // ld-6,-5,-4 all interleaved together - // the big win comes from getting rid of needless flops - // due to the constants on pass 5 & 4 being all 1 and 0; - // combining them to be simultaneous to improve cache made little difference - imdct_step3_inner_s_loop_ld654(n >> 5, u, n2-1, A, n); - - // output is u - - // step 4, 5, and 6 - // cannot be in-place because of step 5 - { - uint16 *bitrev = f->bit_reverse[blocktype]; - // weirdly, I'd have thought reading sequentially and writing - // erratically would have been better than vice-versa, but in - // fact that's not what my testing showed. (That is, with - // j = bitreverse(i), do you read i and write j, or read j and write i.) - - float *d0 = &v[n4-4]; - float *d1 = &v[n2-4]; - while (d0 >= v) { - int k4; - - k4 = bitrev[0]; - d1[3] = u[k4+0]; - d1[2] = u[k4+1]; - d0[3] = u[k4+2]; - d0[2] = u[k4+3]; - - k4 = bitrev[1]; - d1[1] = u[k4+0]; - d1[0] = u[k4+1]; - d0[1] = u[k4+2]; - d0[0] = u[k4+3]; - - d0 -= 4; - d1 -= 4; - bitrev += 2; - } - } - // (paper output is u, now v) - - - // data must be in buf2 - assert(v == buf2); - - // step 7 (paper output is v, now v) - // this is now in place - { - float *C = f->C[blocktype]; - float *d, *e; - - d = v; - e = v + n2 - 4; - - while (d < e) { - float a02,a11,b0,b1,b2,b3; - - a02 = d[0] - e[2]; - a11 = d[1] + e[3]; - - b0 = C[1]*a02 + C[0]*a11; - b1 = C[1]*a11 - C[0]*a02; - - b2 = d[0] + e[ 2]; - b3 = d[1] - e[ 3]; - - d[0] = b2 + b0; - d[1] = b3 + b1; - e[2] = b2 - b0; - e[3] = b1 - b3; - - a02 = d[2] - e[0]; - a11 = d[3] + e[1]; - - b0 = C[3]*a02 + C[2]*a11; - b1 = C[3]*a11 - C[2]*a02; - - b2 = d[2] + e[ 0]; - b3 = d[3] - e[ 1]; - - d[2] = b2 + b0; - d[3] = b3 + b1; - e[0] = b2 - b0; - e[1] = b1 - b3; - - C += 4; - d += 4; - e -= 4; - } - } - - // data must be in buf2 - - - // step 8+decode (paper output is X, now buffer) - // this generates pairs of data a la 8 and pushes them directly through - // the decode kernel (pushing rather than pulling) to avoid having - // to make another pass later - - // this cannot POSSIBLY be in place, so we refer to the buffers directly - - { - float *d0,*d1,*d2,*d3; - - float *B = f->B[blocktype] + n2 - 8; - float *e = buf2 + n2 - 8; - d0 = &buffer[0]; - d1 = &buffer[n2-4]; - d2 = &buffer[n2]; - d3 = &buffer[n-4]; - while (e >= v) { - float p0,p1,p2,p3; - - p3 = e[6]*B[7] - e[7]*B[6]; - p2 = -e[6]*B[6] - e[7]*B[7]; - - d0[0] = p3; - d1[3] = - p3; - d2[0] = p2; - d3[3] = p2; - - p1 = e[4]*B[5] - e[5]*B[4]; - p0 = -e[4]*B[4] - e[5]*B[5]; - - d0[1] = p1; - d1[2] = - p1; - d2[1] = p0; - d3[2] = p0; - - p3 = e[2]*B[3] - e[3]*B[2]; - p2 = -e[2]*B[2] - e[3]*B[3]; - - d0[2] = p3; - d1[1] = - p3; - d2[2] = p2; - d3[1] = p2; - - p1 = e[0]*B[1] - e[1]*B[0]; - p0 = -e[0]*B[0] - e[1]*B[1]; - - d0[3] = p1; - d1[0] = - p1; - d2[3] = p0; - d3[0] = p0; - - B -= 8; - e -= 8; - d0 += 4; - d2 += 4; - d1 -= 4; - d3 -= 4; - } - } - - temp_free(f,buf2); - temp_alloc_restore(f,save_point); -} - -#if 0 -// this is the original version of the above code, if you want to optimize it from scratch -void inverse_mdct_naive(float *buffer, int n) -{ - float s; - float A[1 << 12], B[1 << 12], C[1 << 11]; - int i,k,k2,k4, n2 = n >> 1, n4 = n >> 2, n8 = n >> 3, l; - int n3_4 = n - n4, ld; - // how can they claim this only uses N words?! - // oh, because they're only used sparsely, whoops - float u[1 << 13], X[1 << 13], v[1 << 13], w[1 << 13]; - // set up twiddle factors - - for (k=k2=0; k < n4; ++k,k2+=2) { - A[k2 ] = (float) cos(4*k*M_PI/n); - A[k2+1] = (float) -sin(4*k*M_PI/n); - B[k2 ] = (float) cos((k2+1)*M_PI/n/2); - B[k2+1] = (float) sin((k2+1)*M_PI/n/2); - } - for (k=k2=0; k < n8; ++k,k2+=2) { - C[k2 ] = (float) cos(2*(k2+1)*M_PI/n); - C[k2+1] = (float) -sin(2*(k2+1)*M_PI/n); - } - - // IMDCT algorithm from "The use of multirate filter banks for coding of high quality digital audio" - // Note there are bugs in that pseudocode, presumably due to them attempting - // to rename the arrays nicely rather than representing the way their actual - // implementation bounces buffers back and forth. As a result, even in the - // "some formulars corrected" version, a direct implementation fails. These - // are noted below as "paper bug". - - // copy and reflect spectral data - for (k=0; k < n2; ++k) u[k] = buffer[k]; - for ( ; k < n ; ++k) u[k] = -buffer[n - k - 1]; - // kernel from paper - // step 1 - for (k=k2=k4=0; k < n4; k+=1, k2+=2, k4+=4) { - v[n-k4-1] = (u[k4] - u[n-k4-1]) * A[k2] - (u[k4+2] - u[n-k4-3])*A[k2+1]; - v[n-k4-3] = (u[k4] - u[n-k4-1]) * A[k2+1] + (u[k4+2] - u[n-k4-3])*A[k2]; - } - // step 2 - for (k=k4=0; k < n8; k+=1, k4+=4) { - w[n2+3+k4] = v[n2+3+k4] + v[k4+3]; - w[n2+1+k4] = v[n2+1+k4] + v[k4+1]; - w[k4+3] = (v[n2+3+k4] - v[k4+3])*A[n2-4-k4] - (v[n2+1+k4]-v[k4+1])*A[n2-3-k4]; - w[k4+1] = (v[n2+1+k4] - v[k4+1])*A[n2-4-k4] + (v[n2+3+k4]-v[k4+3])*A[n2-3-k4]; - } - // step 3 - ld = ilog(n) - 1; // ilog is off-by-one from normal definitions - for (l=0; l < ld-3; ++l) { - int k0 = n >> (l+2), k1 = 1 << (l+3); - int rlim = n >> (l+4), r4, r; - int s2lim = 1 << (l+2), s2; - for (r=r4=0; r < rlim; r4+=4,++r) { - for (s2=0; s2 < s2lim; s2+=2) { - u[n-1-k0*s2-r4] = w[n-1-k0*s2-r4] + w[n-1-k0*(s2+1)-r4]; - u[n-3-k0*s2-r4] = w[n-3-k0*s2-r4] + w[n-3-k0*(s2+1)-r4]; - u[n-1-k0*(s2+1)-r4] = (w[n-1-k0*s2-r4] - w[n-1-k0*(s2+1)-r4]) * A[r*k1] - - (w[n-3-k0*s2-r4] - w[n-3-k0*(s2+1)-r4]) * A[r*k1+1]; - u[n-3-k0*(s2+1)-r4] = (w[n-3-k0*s2-r4] - w[n-3-k0*(s2+1)-r4]) * A[r*k1] - + (w[n-1-k0*s2-r4] - w[n-1-k0*(s2+1)-r4]) * A[r*k1+1]; - } - } - if (l+1 < ld-3) { - // paper bug: ping-ponging of u&w here is omitted - memcpy(w, u, sizeof(u)); - } - } - - // step 4 - for (i=0; i < n8; ++i) { - int j = bit_reverse(i) >> (32-ld+3); - assert(j < n8); - if (i == j) { - // paper bug: original code probably swapped in place; if copying, - // need to directly copy in this case - int i8 = i << 3; - v[i8+1] = u[i8+1]; - v[i8+3] = u[i8+3]; - v[i8+5] = u[i8+5]; - v[i8+7] = u[i8+7]; - } else if (i < j) { - int i8 = i << 3, j8 = j << 3; - v[j8+1] = u[i8+1], v[i8+1] = u[j8 + 1]; - v[j8+3] = u[i8+3], v[i8+3] = u[j8 + 3]; - v[j8+5] = u[i8+5], v[i8+5] = u[j8 + 5]; - v[j8+7] = u[i8+7], v[i8+7] = u[j8 + 7]; - } - } - // step 5 - for (k=0; k < n2; ++k) { - w[k] = v[k*2+1]; - } - // step 6 - for (k=k2=k4=0; k < n8; ++k, k2 += 2, k4 += 4) { - u[n-1-k2] = w[k4]; - u[n-2-k2] = w[k4+1]; - u[n3_4 - 1 - k2] = w[k4+2]; - u[n3_4 - 2 - k2] = w[k4+3]; - } - // step 7 - for (k=k2=0; k < n8; ++k, k2 += 2) { - v[n2 + k2 ] = ( u[n2 + k2] + u[n-2-k2] + C[k2+1]*(u[n2+k2]-u[n-2-k2]) + C[k2]*(u[n2+k2+1]+u[n-2-k2+1]))/2; - v[n-2 - k2] = ( u[n2 + k2] + u[n-2-k2] - C[k2+1]*(u[n2+k2]-u[n-2-k2]) - C[k2]*(u[n2+k2+1]+u[n-2-k2+1]))/2; - v[n2+1+ k2] = ( u[n2+1+k2] - u[n-1-k2] + C[k2+1]*(u[n2+1+k2]+u[n-1-k2]) - C[k2]*(u[n2+k2]-u[n-2-k2]))/2; - v[n-1 - k2] = (-u[n2+1+k2] + u[n-1-k2] + C[k2+1]*(u[n2+1+k2]+u[n-1-k2]) - C[k2]*(u[n2+k2]-u[n-2-k2]))/2; - } - // step 8 - for (k=k2=0; k < n4; ++k,k2 += 2) { - X[k] = v[k2+n2]*B[k2 ] + v[k2+1+n2]*B[k2+1]; - X[n2-1-k] = v[k2+n2]*B[k2+1] - v[k2+1+n2]*B[k2 ]; - } - - // decode kernel to output - // determined the following value experimentally - // (by first figuring out what made inverse_mdct_slow work); then matching that here - // (probably vorbis encoder premultiplies by n or n/2, to save it on the decoder?) - s = 0.5; // theoretically would be n4 - - // [[[ note! the s value of 0.5 is compensated for by the B[] in the current code, - // so it needs to use the "old" B values to behave correctly, or else - // set s to 1.0 ]]] - for (i=0; i < n4 ; ++i) buffer[i] = s * X[i+n4]; - for ( ; i < n3_4; ++i) buffer[i] = -s * X[n3_4 - i - 1]; - for ( ; i < n ; ++i) buffer[i] = -s * X[i - n3_4]; -} -#endif - -static float *get_window(vorb *f, int len) -{ - len <<= 1; - if (len == f->blocksize_0) return f->window[0]; - if (len == f->blocksize_1) return f->window[1]; - return NULL; -} - -#ifndef STB_VORBIS_NO_DEFER_FLOOR -typedef int16 YTYPE; -#else -typedef int YTYPE; -#endif -static int do_floor(vorb *f, Mapping *map, int i, int n, float *target, YTYPE *finalY, uint8 *step2_flag) -{ - int n2 = n >> 1; - int s = map->chan[i].mux, floor; - floor = map->submap_floor[s]; - if (f->floor_types[floor] == 0) { - return error(f, VORBIS_invalid_stream); - } else { - Floor1 *g = &f->floor_config[floor].floor1; - int j,q; - int lx = 0, ly = finalY[0] * g->floor1_multiplier; - for (q=1; q < g->values; ++q) { - j = g->sorted_order[q]; - #ifndef STB_VORBIS_NO_DEFER_FLOOR - if (finalY[j] >= 0) - #else - if (step2_flag[j]) - #endif - { - int hy = finalY[j] * g->floor1_multiplier; - int hx = g->Xlist[j]; - if (lx != hx) - draw_line(target, lx,ly, hx,hy, n2); - CHECK(f); - lx = hx, ly = hy; - } - } - if (lx < n2) { - // optimization of: draw_line(target, lx,ly, n,ly, n2); - for (j=lx; j < n2; ++j) - LINE_OP(target[j], inverse_db_table[ly]); - CHECK(f); - } - } - return TRUE; -} - -// The meaning of "left" and "right" -// -// For a given frame: -// we compute samples from 0..n -// window_center is n/2 -// we'll window and mix the samples from left_start to left_end with data from the previous frame -// all of the samples from left_end to right_start can be output without mixing; however, -// this interval is 0-length except when transitioning between short and long frames -// all of the samples from right_start to right_end need to be mixed with the next frame, -// which we don't have, so those get saved in a buffer -// frame N's right_end-right_start, the number of samples to mix with the next frame, -// has to be the same as frame N+1's left_end-left_start (which they are by -// construction) - -static int vorbis_decode_initial(vorb *f, int *p_left_start, int *p_left_end, int *p_right_start, int *p_right_end, int *mode) -{ - Mode *m; - int i, n, prev, next, window_center; - f->channel_buffer_start = f->channel_buffer_end = 0; - - retry: - if (f->eof) return FALSE; - if (!maybe_start_packet(f)) - return FALSE; - // check packet type - if (get_bits(f,1) != 0) { - if (IS_PUSH_MODE(f)) - return error(f,VORBIS_bad_packet_type); - while (EOP != get8_packet(f)); - goto retry; - } - - if (f->alloc.alloc_buffer) - assert(f->alloc.alloc_buffer_length_in_bytes == f->temp_offset); - - i = get_bits(f, ilog(f->mode_count-1)); - if (i == EOP) return FALSE; - if (i >= f->mode_count) return FALSE; - *mode = i; - m = f->mode_config + i; - if (m->blockflag) { - n = f->blocksize_1; - prev = get_bits(f,1); - next = get_bits(f,1); - } else { - prev = next = 0; - n = f->blocksize_0; - } - -// WINDOWING - - window_center = n >> 1; - if (m->blockflag && !prev) { - *p_left_start = (n - f->blocksize_0) >> 2; - *p_left_end = (n + f->blocksize_0) >> 2; - } else { - *p_left_start = 0; - *p_left_end = window_center; - } - if (m->blockflag && !next) { - *p_right_start = (n*3 - f->blocksize_0) >> 2; - *p_right_end = (n*3 + f->blocksize_0) >> 2; - } else { - *p_right_start = window_center; - *p_right_end = n; - } - - return TRUE; -} - -static int vorbis_decode_packet_rest(vorb *f, int *len, Mode *m, int left_start, int left_end, int right_start, int right_end, int *p_left) -{ - Mapping *map; - int i,j,k,n,n2; - int zero_channel[256]; - int really_zero_channel[256]; - -// WINDOWING - - n = f->blocksize[m->blockflag]; - map = &f->mapping[m->mapping]; - -// FLOORS - n2 = n >> 1; - - CHECK(f); - - for (i=0; i < f->channels; ++i) { - int s = map->chan[i].mux, floor; - zero_channel[i] = FALSE; - floor = map->submap_floor[s]; - if (f->floor_types[floor] == 0) { - return error(f, VORBIS_invalid_stream); - } else { - Floor1 *g = &f->floor_config[floor].floor1; - if (get_bits(f, 1)) { - short *finalY; - uint8 step2_flag[256]; - static int range_list[4] = { 256, 128, 86, 64 }; - int range = range_list[g->floor1_multiplier-1]; - int offset = 2; - finalY = f->finalY[i]; - finalY[0] = get_bits(f, ilog(range)-1); - finalY[1] = get_bits(f, ilog(range)-1); - for (j=0; j < g->partitions; ++j) { - int pclass = g->partition_class_list[j]; - int cdim = g->class_dimensions[pclass]; - int cbits = g->class_subclasses[pclass]; - int csub = (1 << cbits)-1; - int cval = 0; - if (cbits) { - Codebook *c = f->codebooks + g->class_masterbooks[pclass]; - DECODE(cval,f,c); - } - for (k=0; k < cdim; ++k) { - int book = g->subclass_books[pclass][cval & csub]; - cval = cval >> cbits; - if (book >= 0) { - int temp; - Codebook *c = f->codebooks + book; - DECODE(temp,f,c); - finalY[offset++] = temp; - } else - finalY[offset++] = 0; - } - } - if (f->valid_bits == INVALID_BITS) goto error; // behavior according to spec - step2_flag[0] = step2_flag[1] = 1; - for (j=2; j < g->values; ++j) { - int low, high, pred, highroom, lowroom, room, val; - low = g->neighbors[j][0]; - high = g->neighbors[j][1]; - //neighbors(g->Xlist, j, &low, &high); - pred = predict_point(g->Xlist[j], g->Xlist[low], g->Xlist[high], finalY[low], finalY[high]); - val = finalY[j]; - highroom = range - pred; - lowroom = pred; - if (highroom < lowroom) - room = highroom * 2; - else - room = lowroom * 2; - if (val) { - step2_flag[low] = step2_flag[high] = 1; - step2_flag[j] = 1; - if (val >= room) - if (highroom > lowroom) - finalY[j] = val - lowroom + pred; - else - finalY[j] = pred - val + highroom - 1; - else - if (val & 1) - finalY[j] = pred - ((val+1)>>1); - else - finalY[j] = pred + (val>>1); - } else { - step2_flag[j] = 0; - finalY[j] = pred; - } - } - -#ifdef STB_VORBIS_NO_DEFER_FLOOR - do_floor(f, map, i, n, f->floor_buffers[i], finalY, step2_flag); -#else - // defer final floor computation until _after_ residue - for (j=0; j < g->values; ++j) { - if (!step2_flag[j]) - finalY[j] = -1; - } -#endif - } else { - error: - zero_channel[i] = TRUE; - } - // So we just defer everything else to later - - // at this point we've decoded the floor into buffer - } - } - CHECK(f); - // at this point we've decoded all floors - - if (f->alloc.alloc_buffer) - assert(f->alloc.alloc_buffer_length_in_bytes == f->temp_offset); - - // re-enable coupled channels if necessary - memcpy(really_zero_channel, zero_channel, sizeof(really_zero_channel[0]) * f->channels); - for (i=0; i < map->coupling_steps; ++i) - if (!zero_channel[map->chan[i].magnitude] || !zero_channel[map->chan[i].angle]) { - zero_channel[map->chan[i].magnitude] = zero_channel[map->chan[i].angle] = FALSE; - } - - CHECK(f); -// RESIDUE DECODE - for (i=0; i < map->submaps; ++i) { - float *residue_buffers[STB_VORBIS_MAX_CHANNELS]; - int r; - uint8 do_not_decode[256]; - int ch = 0; - for (j=0; j < f->channels; ++j) { - if (map->chan[j].mux == i) { - if (zero_channel[j]) { - do_not_decode[ch] = TRUE; - residue_buffers[ch] = NULL; - } else { - do_not_decode[ch] = FALSE; - residue_buffers[ch] = f->channel_buffers[j]; - } - ++ch; - } - } - r = map->submap_residue[i]; - decode_residue(f, residue_buffers, ch, n2, r, do_not_decode); - } - - if (f->alloc.alloc_buffer) - assert(f->alloc.alloc_buffer_length_in_bytes == f->temp_offset); - CHECK(f); - -// INVERSE COUPLING - for (i = map->coupling_steps-1; i >= 0; --i) { - int n2 = n >> 1; - float *m = f->channel_buffers[map->chan[i].magnitude]; - float *a = f->channel_buffers[map->chan[i].angle ]; - for (j=0; j < n2; ++j) { - float a2,m2; - if (m[j] > 0) - if (a[j] > 0) - m2 = m[j], a2 = m[j] - a[j]; - else - a2 = m[j], m2 = m[j] + a[j]; - else - if (a[j] > 0) - m2 = m[j], a2 = m[j] + a[j]; - else - a2 = m[j], m2 = m[j] - a[j]; - m[j] = m2; - a[j] = a2; - } - } - CHECK(f); - - // finish decoding the floors -#ifndef STB_VORBIS_NO_DEFER_FLOOR - for (i=0; i < f->channels; ++i) { - if (really_zero_channel[i]) { - memset(f->channel_buffers[i], 0, sizeof(*f->channel_buffers[i]) * n2); - } else { - do_floor(f, map, i, n, f->channel_buffers[i], f->finalY[i], NULL); - } - } -#else - for (i=0; i < f->channels; ++i) { - if (really_zero_channel[i]) { - memset(f->channel_buffers[i], 0, sizeof(*f->channel_buffers[i]) * n2); - } else { - for (j=0; j < n2; ++j) - f->channel_buffers[i][j] *= f->floor_buffers[i][j]; - } - } -#endif - -// INVERSE MDCT - CHECK(f); - for (i=0; i < f->channels; ++i) - inverse_mdct(f->channel_buffers[i], n, f, m->blockflag); - CHECK(f); - - // this shouldn't be necessary, unless we exited on an error - // and want to flush to get to the next packet - flush_packet(f); - - if (f->first_decode) { - // assume we start so first non-discarded sample is sample 0 - // this isn't to spec, but spec would require us to read ahead - // and decode the size of all current frames--could be done, - // but presumably it's not a commonly used feature - f->current_loc = -n2; // start of first frame is positioned for discard - // we might have to discard samples "from" the next frame too, - // if we're lapping a large block then a small at the start? - f->discard_samples_deferred = n - right_end; - f->current_loc_valid = TRUE; - f->first_decode = FALSE; - } else if (f->discard_samples_deferred) { - if (f->discard_samples_deferred >= right_start - left_start) { - f->discard_samples_deferred -= (right_start - left_start); - left_start = right_start; - *p_left = left_start; - } else { - left_start += f->discard_samples_deferred; - *p_left = left_start; - f->discard_samples_deferred = 0; - } - } else if (f->previous_length == 0 && f->current_loc_valid) { - // we're recovering from a seek... that means we're going to discard - // the samples from this packet even though we know our position from - // the last page header, so we need to update the position based on - // the discarded samples here - // but wait, the code below is going to add this in itself even - // on a discard, so we don't need to do it here... - } - - // check if we have ogg information about the sample # for this packet - if (f->last_seg_which == f->end_seg_with_known_loc) { - // if we have a valid current loc, and this is final: - if (f->current_loc_valid && (f->page_flag & PAGEFLAG_last_page)) { - uint32 current_end = f->known_loc_for_packet; - // then let's infer the size of the (probably) short final frame - if (current_end < f->current_loc + (right_end-left_start)) { - if (current_end < f->current_loc) { - // negative truncation, that's impossible! - *len = 0; - } else { - *len = current_end - f->current_loc; - } - *len += left_start; // this doesn't seem right, but has no ill effect on my test files - if (*len > right_end) *len = right_end; // this should never happen - f->current_loc += *len; - return TRUE; - } - } - // otherwise, just set our sample loc - // guess that the ogg granule pos refers to the _middle_ of the - // last frame? - // set f->current_loc to the position of left_start - f->current_loc = f->known_loc_for_packet - (n2-left_start); - f->current_loc_valid = TRUE; - } - if (f->current_loc_valid) - f->current_loc += (right_start - left_start); - - if (f->alloc.alloc_buffer) - assert(f->alloc.alloc_buffer_length_in_bytes == f->temp_offset); - *len = right_end; // ignore samples after the window goes to 0 - CHECK(f); - - return TRUE; -} - -static int vorbis_decode_packet(vorb *f, int *len, int *p_left, int *p_right) -{ - int mode, left_end, right_end; - if (!vorbis_decode_initial(f, p_left, &left_end, p_right, &right_end, &mode)) return 0; - return vorbis_decode_packet_rest(f, len, f->mode_config + mode, *p_left, left_end, *p_right, right_end, p_left); -} - -static int vorbis_finish_frame(stb_vorbis *f, int len, int left, int right) -{ - int prev,i,j; - // we use right&left (the start of the right- and left-window sin()-regions) - // to determine how much to return, rather than inferring from the rules - // (same result, clearer code); 'left' indicates where our sin() window - // starts, therefore where the previous window's right edge starts, and - // therefore where to start mixing from the previous buffer. 'right' - // indicates where our sin() ending-window starts, therefore that's where - // we start saving, and where our returned-data ends. - - // mixin from previous window - if (f->previous_length) { - int i,j, n = f->previous_length; - float *w = get_window(f, n); - if (w == NULL) return 0; - for (i=0; i < f->channels; ++i) { - for (j=0; j < n; ++j) - f->channel_buffers[i][left+j] = - f->channel_buffers[i][left+j]*w[ j] + - f->previous_window[i][ j]*w[n-1-j]; - } - } - - prev = f->previous_length; - - // last half of this data becomes previous window - f->previous_length = len - right; - - // @OPTIMIZE: could avoid this copy by double-buffering the - // output (flipping previous_window with channel_buffers), but - // then previous_window would have to be 2x as large, and - // channel_buffers couldn't be temp mem (although they're NOT - // currently temp mem, they could be (unless we want to level - // performance by spreading out the computation)) - for (i=0; i < f->channels; ++i) - for (j=0; right+j < len; ++j) - f->previous_window[i][j] = f->channel_buffers[i][right+j]; - - if (!prev) - // there was no previous packet, so this data isn't valid... - // this isn't entirely true, only the would-have-overlapped data - // isn't valid, but this seems to be what the spec requires - return 0; - - // truncate a short frame - if (len < right) right = len; - - f->samples_output += right-left; - - return right - left; -} - -static int vorbis_pump_first_frame(stb_vorbis *f) -{ - int len, right, left, res; - res = vorbis_decode_packet(f, &len, &left, &right); - if (res) - vorbis_finish_frame(f, len, left, right); - return res; -} - -#ifndef STB_VORBIS_NO_PUSHDATA_API -static int is_whole_packet_present(stb_vorbis *f) -{ - // make sure that we have the packet available before continuing... - // this requires a full ogg parse, but we know we can fetch from f->stream - - // instead of coding this out explicitly, we could save the current read state, - // read the next packet with get8() until end-of-packet, check f->eof, then - // reset the state? but that would be slower, esp. since we'd have over 256 bytes - // of state to restore (primarily the page segment table) - - int s = f->next_seg, first = TRUE; - uint8 *p = f->stream; - - if (s != -1) { // if we're not starting the packet with a 'continue on next page' flag - for (; s < f->segment_count; ++s) { - p += f->segments[s]; - if (f->segments[s] < 255) // stop at first short segment - break; - } - // either this continues, or it ends it... - if (s == f->segment_count) - s = -1; // set 'crosses page' flag - if (p > f->stream_end) return error(f, VORBIS_need_more_data); - first = FALSE; - } - for (; s == -1;) { - uint8 *q; - int n; - - // check that we have the page header ready - if (p + 26 >= f->stream_end) return error(f, VORBIS_need_more_data); - // validate the page - if (memcmp(p, ogg_page_header, 4)) return error(f, VORBIS_invalid_stream); - if (p[4] != 0) return error(f, VORBIS_invalid_stream); - if (first) { // the first segment must NOT have 'continued_packet', later ones MUST - if (f->previous_length) - if ((p[5] & PAGEFLAG_continued_packet)) return error(f, VORBIS_invalid_stream); - // if no previous length, we're resynching, so we can come in on a continued-packet, - // which we'll just drop - } else { - if (!(p[5] & PAGEFLAG_continued_packet)) return error(f, VORBIS_invalid_stream); - } - n = p[26]; // segment counts - q = p+27; // q points to segment table - p = q + n; // advance past header - // make sure we've read the segment table - if (p > f->stream_end) return error(f, VORBIS_need_more_data); - for (s=0; s < n; ++s) { - p += q[s]; - if (q[s] < 255) - break; - } - if (s == n) - s = -1; // set 'crosses page' flag - if (p > f->stream_end) return error(f, VORBIS_need_more_data); - first = FALSE; - } - return TRUE; -} -#endif // !STB_VORBIS_NO_PUSHDATA_API - -static int start_decoder(vorb *f) -{ - uint8 header[6], x,y; - int len,i,j,k, max_submaps = 0; - int longest_floorlist=0; - - // first page, first packet - f->first_decode = TRUE; - - if (!start_page(f)) return FALSE; - // validate page flag - if (!(f->page_flag & PAGEFLAG_first_page)) return error(f, VORBIS_invalid_first_page); - if (f->page_flag & PAGEFLAG_last_page) return error(f, VORBIS_invalid_first_page); - if (f->page_flag & PAGEFLAG_continued_packet) return error(f, VORBIS_invalid_first_page); - // check for expected packet length - if (f->segment_count != 1) return error(f, VORBIS_invalid_first_page); - if (f->segments[0] != 30) { - // check for the Ogg skeleton fishead identifying header to refine our error - if (f->segments[0] == 64 && - getn(f, header, 6) && - header[0] == 'f' && - header[1] == 'i' && - header[2] == 's' && - header[3] == 'h' && - header[4] == 'e' && - header[5] == 'a' && - get8(f) == 'd' && - get8(f) == '\0') return error(f, VORBIS_ogg_skeleton_not_supported); - else - return error(f, VORBIS_invalid_first_page); - } - - // read packet - // check packet header - if (get8(f) != VORBIS_packet_id) return error(f, VORBIS_invalid_first_page); - if (!getn(f, header, 6)) return error(f, VORBIS_unexpected_eof); - if (!vorbis_validate(header)) return error(f, VORBIS_invalid_first_page); - // vorbis_version - if (get32(f) != 0) return error(f, VORBIS_invalid_first_page); - f->channels = get8(f); if (!f->channels) return error(f, VORBIS_invalid_first_page); - if (f->channels > STB_VORBIS_MAX_CHANNELS) return error(f, VORBIS_too_many_channels); - f->sample_rate = get32(f); if (!f->sample_rate) return error(f, VORBIS_invalid_first_page); - get32(f); // bitrate_maximum - get32(f); // bitrate_nominal - get32(f); // bitrate_minimum - x = get8(f); - { - int log0,log1; - log0 = x & 15; - log1 = x >> 4; - f->blocksize_0 = 1 << log0; - f->blocksize_1 = 1 << log1; - if (log0 < 6 || log0 > 13) return error(f, VORBIS_invalid_setup); - if (log1 < 6 || log1 > 13) return error(f, VORBIS_invalid_setup); - if (log0 > log1) return error(f, VORBIS_invalid_setup); - } - - // framing_flag - x = get8(f); - if (!(x & 1)) return error(f, VORBIS_invalid_first_page); - - // second packet! - if (!start_page(f)) return FALSE; - - if (!start_packet(f)) return FALSE; - - if (!next_segment(f)) return FALSE; - - if (get8_packet(f) != VORBIS_packet_comment) return error(f, VORBIS_invalid_setup); - for (i=0; i < 6; ++i) header[i] = get8_packet(f); - if (!vorbis_validate(header)) return error(f, VORBIS_invalid_setup); - //file vendor - len = get32_packet(f); - f->vendor = (char*)setup_malloc(f, sizeof(char) * (len+1)); - if (f->vendor == NULL) return error(f, VORBIS_outofmem); - for(i=0; i < len; ++i) { - f->vendor[i] = get8_packet(f); - } - f->vendor[len] = (char)'\0'; - //user comments - f->comment_list_length = get32_packet(f); - if (f->comment_list_length > 0) { - f->comment_list = (char**)setup_malloc(f, sizeof(char*) * (f->comment_list_length)); - if (f->comment_list == NULL) return error(f, VORBIS_outofmem); - } - - for(i=0; i < f->comment_list_length; ++i) { - len = get32_packet(f); - f->comment_list[i] = (char*)setup_malloc(f, sizeof(char) * (len+1)); - if (f->comment_list[i] == NULL) return error(f, VORBIS_outofmem); - - for(j=0; j < len; ++j) { - f->comment_list[i][j] = get8_packet(f); - } - f->comment_list[i][len] = (char)'\0'; - } - - // framing_flag - x = get8_packet(f); - if (!(x & 1)) return error(f, VORBIS_invalid_setup); - - - skip(f, f->bytes_in_seg); - f->bytes_in_seg = 0; - - do { - len = next_segment(f); - skip(f, len); - f->bytes_in_seg = 0; - } while (len); - - // third packet! - if (!start_packet(f)) return FALSE; - - #ifndef STB_VORBIS_NO_PUSHDATA_API - if (IS_PUSH_MODE(f)) { - if (!is_whole_packet_present(f)) { - // convert error in ogg header to write type - if (f->error == VORBIS_invalid_stream) - f->error = VORBIS_invalid_setup; - return FALSE; - } - } - #endif - - crc32_init(); // always init it, to avoid multithread race conditions - - if (get8_packet(f) != VORBIS_packet_setup) return error(f, VORBIS_invalid_setup); - for (i=0; i < 6; ++i) header[i] = get8_packet(f); - if (!vorbis_validate(header)) return error(f, VORBIS_invalid_setup); - - // codebooks - - f->codebook_count = get_bits(f,8) + 1; - f->codebooks = (Codebook *) setup_malloc(f, sizeof(*f->codebooks) * f->codebook_count); - if (f->codebooks == NULL) return error(f, VORBIS_outofmem); - memset(f->codebooks, 0, sizeof(*f->codebooks) * f->codebook_count); - for (i=0; i < f->codebook_count; ++i) { - uint32 *values; - int ordered, sorted_count; - int total=0; - uint8 *lengths; - Codebook *c = f->codebooks+i; - CHECK(f); - x = get_bits(f, 8); if (x != 0x42) return error(f, VORBIS_invalid_setup); - x = get_bits(f, 8); if (x != 0x43) return error(f, VORBIS_invalid_setup); - x = get_bits(f, 8); if (x != 0x56) return error(f, VORBIS_invalid_setup); - x = get_bits(f, 8); - c->dimensions = (get_bits(f, 8)<<8) + x; - x = get_bits(f, 8); - y = get_bits(f, 8); - c->entries = (get_bits(f, 8)<<16) + (y<<8) + x; - ordered = get_bits(f,1); - c->sparse = ordered ? 0 : get_bits(f,1); - - if (c->dimensions == 0 && c->entries != 0) return error(f, VORBIS_invalid_setup); - - if (c->sparse) - lengths = (uint8 *) setup_temp_malloc(f, c->entries); - else - lengths = c->codeword_lengths = (uint8 *) setup_malloc(f, c->entries); - - if (!lengths) return error(f, VORBIS_outofmem); - - if (ordered) { - int current_entry = 0; - int current_length = get_bits(f,5) + 1; - while (current_entry < c->entries) { - int limit = c->entries - current_entry; - int n = get_bits(f, ilog(limit)); - if (current_length >= 32) return error(f, VORBIS_invalid_setup); - if (current_entry + n > (int) c->entries) { return error(f, VORBIS_invalid_setup); } - memset(lengths + current_entry, current_length, n); - current_entry += n; - ++current_length; - } - } else { - for (j=0; j < c->entries; ++j) { - int present = c->sparse ? get_bits(f,1) : 1; - if (present) { - lengths[j] = get_bits(f, 5) + 1; - ++total; - if (lengths[j] == 32) - return error(f, VORBIS_invalid_setup); - } else { - lengths[j] = NO_CODE; - } - } - } - - if (c->sparse && total >= c->entries >> 2) { - // convert sparse items to non-sparse! - if (c->entries > (int) f->setup_temp_memory_required) - f->setup_temp_memory_required = c->entries; - - c->codeword_lengths = (uint8 *) setup_malloc(f, c->entries); - if (c->codeword_lengths == NULL) return error(f, VORBIS_outofmem); - memcpy(c->codeword_lengths, lengths, c->entries); - setup_temp_free(f, lengths, c->entries); // note this is only safe if there have been no intervening temp mallocs! - lengths = c->codeword_lengths; - c->sparse = 0; - } - - // compute the size of the sorted tables - if (c->sparse) { - sorted_count = total; - } else { - sorted_count = 0; - #ifndef STB_VORBIS_NO_HUFFMAN_BINARY_SEARCH - for (j=0; j < c->entries; ++j) - if (lengths[j] > STB_VORBIS_FAST_HUFFMAN_LENGTH && lengths[j] != NO_CODE) - ++sorted_count; - #endif - } - - c->sorted_entries = sorted_count; - values = NULL; - - CHECK(f); - if (!c->sparse) { - c->codewords = (uint32 *) setup_malloc(f, sizeof(c->codewords[0]) * c->entries); - if (!c->codewords) return error(f, VORBIS_outofmem); - } else { - unsigned int size; - if (c->sorted_entries) { - c->codeword_lengths = (uint8 *) setup_malloc(f, c->sorted_entries); - if (!c->codeword_lengths) return error(f, VORBIS_outofmem); - c->codewords = (uint32 *) setup_temp_malloc(f, sizeof(*c->codewords) * c->sorted_entries); - if (!c->codewords) return error(f, VORBIS_outofmem); - values = (uint32 *) setup_temp_malloc(f, sizeof(*values) * c->sorted_entries); - if (!values) return error(f, VORBIS_outofmem); - } - size = c->entries + (sizeof(*c->codewords) + sizeof(*values)) * c->sorted_entries; - if (size > f->setup_temp_memory_required) - f->setup_temp_memory_required = size; - } - - if (!compute_codewords(c, lengths, c->entries, values)) { - if (c->sparse) setup_temp_free(f, values, 0); - return error(f, VORBIS_invalid_setup); - } - - if (c->sorted_entries) { - // allocate an extra slot for sentinels - c->sorted_codewords = (uint32 *) setup_malloc(f, sizeof(*c->sorted_codewords) * (c->sorted_entries+1)); - if (c->sorted_codewords == NULL) return error(f, VORBIS_outofmem); - // allocate an extra slot at the front so that c->sorted_values[-1] is defined - // so that we can catch that case without an extra if - c->sorted_values = ( int *) setup_malloc(f, sizeof(*c->sorted_values ) * (c->sorted_entries+1)); - if (c->sorted_values == NULL) return error(f, VORBIS_outofmem); - ++c->sorted_values; - c->sorted_values[-1] = -1; - compute_sorted_huffman(c, lengths, values); - } - - if (c->sparse) { - setup_temp_free(f, values, sizeof(*values)*c->sorted_entries); - setup_temp_free(f, c->codewords, sizeof(*c->codewords)*c->sorted_entries); - setup_temp_free(f, lengths, c->entries); - c->codewords = NULL; - } - - compute_accelerated_huffman(c); - - CHECK(f); - c->lookup_type = get_bits(f, 4); - if (c->lookup_type > 2) return error(f, VORBIS_invalid_setup); - if (c->lookup_type > 0) { - uint16 *mults; - c->minimum_value = float32_unpack(get_bits(f, 32)); - c->delta_value = float32_unpack(get_bits(f, 32)); - c->value_bits = get_bits(f, 4)+1; - c->sequence_p = get_bits(f,1); - if (c->lookup_type == 1) { - int values = lookup1_values(c->entries, c->dimensions); - if (values < 0) return error(f, VORBIS_invalid_setup); - c->lookup_values = (uint32) values; - } else { - c->lookup_values = c->entries * c->dimensions; - } - if (c->lookup_values == 0) return error(f, VORBIS_invalid_setup); - mults = (uint16 *) setup_temp_malloc(f, sizeof(mults[0]) * c->lookup_values); - if (mults == NULL) return error(f, VORBIS_outofmem); - for (j=0; j < (int) c->lookup_values; ++j) { - int q = get_bits(f, c->value_bits); - if (q == EOP) { setup_temp_free(f,mults,sizeof(mults[0])*c->lookup_values); return error(f, VORBIS_invalid_setup); } - mults[j] = q; - } - -#ifndef STB_VORBIS_DIVIDES_IN_CODEBOOK - if (c->lookup_type == 1) { - int len, sparse = c->sparse; - float last=0; - // pre-expand the lookup1-style multiplicands, to avoid a divide in the inner loop - if (sparse) { - if (c->sorted_entries == 0) goto skip; - c->multiplicands = (codetype *) setup_malloc(f, sizeof(c->multiplicands[0]) * c->sorted_entries * c->dimensions); - } else - c->multiplicands = (codetype *) setup_malloc(f, sizeof(c->multiplicands[0]) * c->entries * c->dimensions); - if (c->multiplicands == NULL) { setup_temp_free(f,mults,sizeof(mults[0])*c->lookup_values); return error(f, VORBIS_outofmem); } - len = sparse ? c->sorted_entries : c->entries; - for (j=0; j < len; ++j) { - unsigned int z = sparse ? c->sorted_values[j] : j; - unsigned int div=1; - for (k=0; k < c->dimensions; ++k) { - int off = (z / div) % c->lookup_values; - float val = mults[off]; - val = mults[off]*c->delta_value + c->minimum_value + last; - c->multiplicands[j*c->dimensions + k] = val; - if (c->sequence_p) - last = val; - if (k+1 < c->dimensions) { - if (div > UINT_MAX / (unsigned int) c->lookup_values) { - setup_temp_free(f, mults,sizeof(mults[0])*c->lookup_values); - return error(f, VORBIS_invalid_setup); - } - div *= c->lookup_values; - } - } - } - c->lookup_type = 2; - } - else -#endif - { - float last=0; - CHECK(f); - c->multiplicands = (codetype *) setup_malloc(f, sizeof(c->multiplicands[0]) * c->lookup_values); - if (c->multiplicands == NULL) { setup_temp_free(f, mults,sizeof(mults[0])*c->lookup_values); return error(f, VORBIS_outofmem); } - for (j=0; j < (int) c->lookup_values; ++j) { - float val = mults[j] * c->delta_value + c->minimum_value + last; - c->multiplicands[j] = val; - if (c->sequence_p) - last = val; - } - } -#ifndef STB_VORBIS_DIVIDES_IN_CODEBOOK - skip:; -#endif - setup_temp_free(f, mults, sizeof(mults[0])*c->lookup_values); - - CHECK(f); - } - CHECK(f); - } - - // time domain transfers (notused) - - x = get_bits(f, 6) + 1; - for (i=0; i < x; ++i) { - uint32 z = get_bits(f, 16); - if (z != 0) return error(f, VORBIS_invalid_setup); - } - - // Floors - f->floor_count = get_bits(f, 6)+1; - f->floor_config = (Floor *) setup_malloc(f, f->floor_count * sizeof(*f->floor_config)); - if (f->floor_config == NULL) return error(f, VORBIS_outofmem); - for (i=0; i < f->floor_count; ++i) { - f->floor_types[i] = get_bits(f, 16); - if (f->floor_types[i] > 1) return error(f, VORBIS_invalid_setup); - if (f->floor_types[i] == 0) { - Floor0 *g = &f->floor_config[i].floor0; - g->order = get_bits(f,8); - g->rate = get_bits(f,16); - g->bark_map_size = get_bits(f,16); - g->amplitude_bits = get_bits(f,6); - g->amplitude_offset = get_bits(f,8); - g->number_of_books = get_bits(f,4) + 1; - for (j=0; j < g->number_of_books; ++j) - g->book_list[j] = get_bits(f,8); - return error(f, VORBIS_feature_not_supported); - } else { - stbv__floor_ordering p[31*8+2]; - Floor1 *g = &f->floor_config[i].floor1; - int max_class = -1; - g->partitions = get_bits(f, 5); - for (j=0; j < g->partitions; ++j) { - g->partition_class_list[j] = get_bits(f, 4); - if (g->partition_class_list[j] > max_class) - max_class = g->partition_class_list[j]; - } - for (j=0; j <= max_class; ++j) { - g->class_dimensions[j] = get_bits(f, 3)+1; - g->class_subclasses[j] = get_bits(f, 2); - if (g->class_subclasses[j]) { - g->class_masterbooks[j] = get_bits(f, 8); - if (g->class_masterbooks[j] >= f->codebook_count) return error(f, VORBIS_invalid_setup); - } - for (k=0; k < 1 << g->class_subclasses[j]; ++k) { - g->subclass_books[j][k] = get_bits(f,8)-1; - if (g->subclass_books[j][k] >= f->codebook_count) return error(f, VORBIS_invalid_setup); - } - } - g->floor1_multiplier = get_bits(f,2)+1; - g->rangebits = get_bits(f,4); - g->Xlist[0] = 0; - g->Xlist[1] = 1 << g->rangebits; - g->values = 2; - for (j=0; j < g->partitions; ++j) { - int c = g->partition_class_list[j]; - for (k=0; k < g->class_dimensions[c]; ++k) { - g->Xlist[g->values] = get_bits(f, g->rangebits); - ++g->values; - } - } - // precompute the sorting - for (j=0; j < g->values; ++j) { - p[j].x = g->Xlist[j]; - p[j].id = j; - } - qsort(p, g->values, sizeof(p[0]), point_compare); - for (j=0; j < g->values-1; ++j) - if (p[j].x == p[j+1].x) - return error(f, VORBIS_invalid_setup); - for (j=0; j < g->values; ++j) - g->sorted_order[j] = (uint8) p[j].id; - // precompute the neighbors - for (j=2; j < g->values; ++j) { - int low = 0,hi = 0; - neighbors(g->Xlist, j, &low,&hi); - g->neighbors[j][0] = low; - g->neighbors[j][1] = hi; - } - - if (g->values > longest_floorlist) - longest_floorlist = g->values; - } - } - - // Residue - f->residue_count = get_bits(f, 6)+1; - f->residue_config = (Residue *) setup_malloc(f, f->residue_count * sizeof(f->residue_config[0])); - if (f->residue_config == NULL) return error(f, VORBIS_outofmem); - memset(f->residue_config, 0, f->residue_count * sizeof(f->residue_config[0])); - for (i=0; i < f->residue_count; ++i) { - uint8 residue_cascade[64]; - Residue *r = f->residue_config+i; - f->residue_types[i] = get_bits(f, 16); - if (f->residue_types[i] > 2) return error(f, VORBIS_invalid_setup); - r->begin = get_bits(f, 24); - r->end = get_bits(f, 24); - if (r->end < r->begin) return error(f, VORBIS_invalid_setup); - r->part_size = get_bits(f,24)+1; - r->classifications = get_bits(f,6)+1; - r->classbook = get_bits(f,8); - if (r->classbook >= f->codebook_count) return error(f, VORBIS_invalid_setup); - for (j=0; j < r->classifications; ++j) { - uint8 high_bits=0; - uint8 low_bits=get_bits(f,3); - if (get_bits(f,1)) - high_bits = get_bits(f,5); - residue_cascade[j] = high_bits*8 + low_bits; - } - r->residue_books = (short (*)[8]) setup_malloc(f, sizeof(r->residue_books[0]) * r->classifications); - if (r->residue_books == NULL) return error(f, VORBIS_outofmem); - for (j=0; j < r->classifications; ++j) { - for (k=0; k < 8; ++k) { - if (residue_cascade[j] & (1 << k)) { - r->residue_books[j][k] = get_bits(f, 8); - if (r->residue_books[j][k] >= f->codebook_count) return error(f, VORBIS_invalid_setup); - } else { - r->residue_books[j][k] = -1; - } - } - } - // precompute the classifications[] array to avoid inner-loop mod/divide - // call it 'classdata' since we already have r->classifications - r->classdata = (uint8 **) setup_malloc(f, sizeof(*r->classdata) * f->codebooks[r->classbook].entries); - if (!r->classdata) return error(f, VORBIS_outofmem); - memset(r->classdata, 0, sizeof(*r->classdata) * f->codebooks[r->classbook].entries); - for (j=0; j < f->codebooks[r->classbook].entries; ++j) { - int classwords = f->codebooks[r->classbook].dimensions; - int temp = j; - r->classdata[j] = (uint8 *) setup_malloc(f, sizeof(r->classdata[j][0]) * classwords); - if (r->classdata[j] == NULL) return error(f, VORBIS_outofmem); - for (k=classwords-1; k >= 0; --k) { - r->classdata[j][k] = temp % r->classifications; - temp /= r->classifications; - } - } - } - - f->mapping_count = get_bits(f,6)+1; - f->mapping = (Mapping *) setup_malloc(f, f->mapping_count * sizeof(*f->mapping)); - if (f->mapping == NULL) return error(f, VORBIS_outofmem); - memset(f->mapping, 0, f->mapping_count * sizeof(*f->mapping)); - for (i=0; i < f->mapping_count; ++i) { - Mapping *m = f->mapping + i; - int mapping_type = get_bits(f,16); - if (mapping_type != 0) return error(f, VORBIS_invalid_setup); - m->chan = (MappingChannel *) setup_malloc(f, f->channels * sizeof(*m->chan)); - if (m->chan == NULL) return error(f, VORBIS_outofmem); - if (get_bits(f,1)) - m->submaps = get_bits(f,4)+1; - else - m->submaps = 1; - if (m->submaps > max_submaps) - max_submaps = m->submaps; - if (get_bits(f,1)) { - m->coupling_steps = get_bits(f,8)+1; - if (m->coupling_steps > f->channels) return error(f, VORBIS_invalid_setup); - for (k=0; k < m->coupling_steps; ++k) { - m->chan[k].magnitude = get_bits(f, ilog(f->channels-1)); - m->chan[k].angle = get_bits(f, ilog(f->channels-1)); - if (m->chan[k].magnitude >= f->channels) return error(f, VORBIS_invalid_setup); - if (m->chan[k].angle >= f->channels) return error(f, VORBIS_invalid_setup); - if (m->chan[k].magnitude == m->chan[k].angle) return error(f, VORBIS_invalid_setup); - } - } else - m->coupling_steps = 0; - - // reserved field - if (get_bits(f,2)) return error(f, VORBIS_invalid_setup); - if (m->submaps > 1) { - for (j=0; j < f->channels; ++j) { - m->chan[j].mux = get_bits(f, 4); - if (m->chan[j].mux >= m->submaps) return error(f, VORBIS_invalid_setup); - } - } else - // @SPECIFICATION: this case is missing from the spec - for (j=0; j < f->channels; ++j) - m->chan[j].mux = 0; - - for (j=0; j < m->submaps; ++j) { - get_bits(f,8); // discard - m->submap_floor[j] = get_bits(f,8); - m->submap_residue[j] = get_bits(f,8); - if (m->submap_floor[j] >= f->floor_count) return error(f, VORBIS_invalid_setup); - if (m->submap_residue[j] >= f->residue_count) return error(f, VORBIS_invalid_setup); - } - } - - // Modes - f->mode_count = get_bits(f, 6)+1; - for (i=0; i < f->mode_count; ++i) { - Mode *m = f->mode_config+i; - m->blockflag = get_bits(f,1); - m->windowtype = get_bits(f,16); - m->transformtype = get_bits(f,16); - m->mapping = get_bits(f,8); - if (m->windowtype != 0) return error(f, VORBIS_invalid_setup); - if (m->transformtype != 0) return error(f, VORBIS_invalid_setup); - if (m->mapping >= f->mapping_count) return error(f, VORBIS_invalid_setup); - } - - flush_packet(f); - - f->previous_length = 0; - - for (i=0; i < f->channels; ++i) { - f->channel_buffers[i] = (float *) setup_malloc(f, sizeof(float) * f->blocksize_1); - f->previous_window[i] = (float *) setup_malloc(f, sizeof(float) * f->blocksize_1/2); - f->finalY[i] = (int16 *) setup_malloc(f, sizeof(int16) * longest_floorlist); - if (f->channel_buffers[i] == NULL || f->previous_window[i] == NULL || f->finalY[i] == NULL) return error(f, VORBIS_outofmem); - memset(f->channel_buffers[i], 0, sizeof(float) * f->blocksize_1); - #ifdef STB_VORBIS_NO_DEFER_FLOOR - f->floor_buffers[i] = (float *) setup_malloc(f, sizeof(float) * f->blocksize_1/2); - if (f->floor_buffers[i] == NULL) return error(f, VORBIS_outofmem); - #endif - } - - if (!init_blocksize(f, 0, f->blocksize_0)) return FALSE; - if (!init_blocksize(f, 1, f->blocksize_1)) return FALSE; - f->blocksize[0] = f->blocksize_0; - f->blocksize[1] = f->blocksize_1; - -#ifdef STB_VORBIS_DIVIDE_TABLE - if (integer_divide_table[1][1]==0) - for (i=0; i < DIVTAB_NUMER; ++i) - for (j=1; j < DIVTAB_DENOM; ++j) - integer_divide_table[i][j] = i / j; -#endif - - // compute how much temporary memory is needed - - // 1. - { - uint32 imdct_mem = (f->blocksize_1 * sizeof(float) >> 1); - uint32 classify_mem; - int i,max_part_read=0; - for (i=0; i < f->residue_count; ++i) { - Residue *r = f->residue_config + i; - unsigned int actual_size = f->blocksize_1 / 2; - unsigned int limit_r_begin = r->begin < actual_size ? r->begin : actual_size; - unsigned int limit_r_end = r->end < actual_size ? r->end : actual_size; - int n_read = limit_r_end - limit_r_begin; - int part_read = n_read / r->part_size; - if (part_read > max_part_read) - max_part_read = part_read; - } - #ifndef STB_VORBIS_DIVIDES_IN_RESIDUE - classify_mem = f->channels * (sizeof(void*) + max_part_read * sizeof(uint8 *)); - #else - classify_mem = f->channels * (sizeof(void*) + max_part_read * sizeof(int *)); - #endif - - // maximum reasonable partition size is f->blocksize_1 - - f->temp_memory_required = classify_mem; - if (imdct_mem > f->temp_memory_required) - f->temp_memory_required = imdct_mem; - } - - - if (f->alloc.alloc_buffer) { - assert(f->temp_offset == f->alloc.alloc_buffer_length_in_bytes); - // check if there's enough temp memory so we don't error later - if (f->setup_offset + sizeof(*f) + f->temp_memory_required > (unsigned) f->temp_offset) - return error(f, VORBIS_outofmem); - } - - // @TODO: stb_vorbis_seek_start expects first_audio_page_offset to point to a page - // without PAGEFLAG_continued_packet, so this either points to the first page, or - // the page after the end of the headers. It might be cleaner to point to a page - // in the middle of the headers, when that's the page where the first audio packet - // starts, but we'd have to also correctly skip the end of any continued packet in - // stb_vorbis_seek_start. - if (f->next_seg == -1) { - f->first_audio_page_offset = stb_vorbis_get_file_offset(f); - } else { - f->first_audio_page_offset = 0; - } - - return TRUE; -} - -static void vorbis_deinit(stb_vorbis *p) -{ - int i,j; - - setup_free(p, p->vendor); - for (i=0; i < p->comment_list_length; ++i) { - setup_free(p, p->comment_list[i]); - } - setup_free(p, p->comment_list); - - if (p->residue_config) { - for (i=0; i < p->residue_count; ++i) { - Residue *r = p->residue_config+i; - if (r->classdata) { - for (j=0; j < p->codebooks[r->classbook].entries; ++j) - setup_free(p, r->classdata[j]); - setup_free(p, r->classdata); - } - setup_free(p, r->residue_books); - } - } - - if (p->codebooks) { - CHECK(p); - for (i=0; i < p->codebook_count; ++i) { - Codebook *c = p->codebooks + i; - setup_free(p, c->codeword_lengths); - setup_free(p, c->multiplicands); - setup_free(p, c->codewords); - setup_free(p, c->sorted_codewords); - // c->sorted_values[-1] is the first entry in the array - setup_free(p, c->sorted_values ? c->sorted_values-1 : NULL); - } - setup_free(p, p->codebooks); - } - setup_free(p, p->floor_config); - setup_free(p, p->residue_config); - if (p->mapping) { - for (i=0; i < p->mapping_count; ++i) - setup_free(p, p->mapping[i].chan); - setup_free(p, p->mapping); - } - CHECK(p); - for (i=0; i < p->channels && i < STB_VORBIS_MAX_CHANNELS; ++i) { - setup_free(p, p->channel_buffers[i]); - setup_free(p, p->previous_window[i]); - #ifdef STB_VORBIS_NO_DEFER_FLOOR - setup_free(p, p->floor_buffers[i]); - #endif - setup_free(p, p->finalY[i]); - } - for (i=0; i < 2; ++i) { - setup_free(p, p->A[i]); - setup_free(p, p->B[i]); - setup_free(p, p->C[i]); - setup_free(p, p->window[i]); - setup_free(p, p->bit_reverse[i]); - } - #ifndef STB_VORBIS_NO_STDIO - if (p->close_on_free) fclose(p->f); - #endif -} - -void stb_vorbis_close(stb_vorbis *p) -{ - if (p == NULL) return; - vorbis_deinit(p); - setup_free(p,p); -} - -static void vorbis_init(stb_vorbis *p, const stb_vorbis_alloc *z) -{ - memset(p, 0, sizeof(*p)); // NULL out all malloc'd pointers to start - if (z) { - p->alloc = *z; - p->alloc.alloc_buffer_length_in_bytes &= ~7; - p->temp_offset = p->alloc.alloc_buffer_length_in_bytes; - } - p->eof = 0; - p->error = VORBIS__no_error; - p->stream = NULL; - p->codebooks = NULL; - p->page_crc_tests = -1; - #ifndef STB_VORBIS_NO_STDIO - p->close_on_free = FALSE; - p->f = NULL; - #endif -} - -int stb_vorbis_get_sample_offset(stb_vorbis *f) -{ - if (f->current_loc_valid) - return f->current_loc; - else - return -1; -} - -stb_vorbis_info stb_vorbis_get_info(stb_vorbis *f) -{ - stb_vorbis_info d; - d.channels = f->channels; - d.sample_rate = f->sample_rate; - d.setup_memory_required = f->setup_memory_required; - d.setup_temp_memory_required = f->setup_temp_memory_required; - d.temp_memory_required = f->temp_memory_required; - d.max_frame_size = f->blocksize_1 >> 1; - return d; -} - -stb_vorbis_comment stb_vorbis_get_comment(stb_vorbis *f) -{ - stb_vorbis_comment d; - d.vendor = f->vendor; - d.comment_list_length = f->comment_list_length; - d.comment_list = f->comment_list; - return d; -} - -int stb_vorbis_get_error(stb_vorbis *f) -{ - int e = f->error; - f->error = VORBIS__no_error; - return e; -} - -static stb_vorbis * vorbis_alloc(stb_vorbis *f) -{ - stb_vorbis *p = (stb_vorbis *) setup_malloc(f, sizeof(*p)); - return p; -} - -#ifndef STB_VORBIS_NO_PUSHDATA_API - -void stb_vorbis_flush_pushdata(stb_vorbis *f) -{ - f->previous_length = 0; - f->page_crc_tests = 0; - f->discard_samples_deferred = 0; - f->current_loc_valid = FALSE; - f->first_decode = FALSE; - f->samples_output = 0; - f->channel_buffer_start = 0; - f->channel_buffer_end = 0; -} - -static int vorbis_search_for_page_pushdata(vorb *f, uint8 *data, int data_len) -{ - int i,n; - for (i=0; i < f->page_crc_tests; ++i) - f->scan[i].bytes_done = 0; - - // if we have room for more scans, search for them first, because - // they may cause us to stop early if their header is incomplete - if (f->page_crc_tests < STB_VORBIS_PUSHDATA_CRC_COUNT) { - if (data_len < 4) return 0; - data_len -= 3; // need to look for 4-byte sequence, so don't miss - // one that straddles a boundary - for (i=0; i < data_len; ++i) { - if (data[i] == 0x4f) { - if (0==memcmp(data+i, ogg_page_header, 4)) { - int j,len; - uint32 crc; - // make sure we have the whole page header - if (i+26 >= data_len || i+27+data[i+26] >= data_len) { - // only read up to this page start, so hopefully we'll - // have the whole page header start next time - data_len = i; - break; - } - // ok, we have it all; compute the length of the page - len = 27 + data[i+26]; - for (j=0; j < data[i+26]; ++j) - len += data[i+27+j]; - // scan everything up to the embedded crc (which we must 0) - crc = 0; - for (j=0; j < 22; ++j) - crc = crc32_update(crc, data[i+j]); - // now process 4 0-bytes - for ( ; j < 26; ++j) - crc = crc32_update(crc, 0); - // len is the total number of bytes we need to scan - n = f->page_crc_tests++; - f->scan[n].bytes_left = len-j; - f->scan[n].crc_so_far = crc; - f->scan[n].goal_crc = data[i+22] + (data[i+23] << 8) + (data[i+24]<<16) + (data[i+25]<<24); - // if the last frame on a page is continued to the next, then - // we can't recover the sample_loc immediately - if (data[i+27+data[i+26]-1] == 255) - f->scan[n].sample_loc = ~0; - else - f->scan[n].sample_loc = data[i+6] + (data[i+7] << 8) + (data[i+ 8]<<16) + (data[i+ 9]<<24); - f->scan[n].bytes_done = i+j; - if (f->page_crc_tests == STB_VORBIS_PUSHDATA_CRC_COUNT) - break; - // keep going if we still have room for more - } - } - } - } - - for (i=0; i < f->page_crc_tests;) { - uint32 crc; - int j; - int n = f->scan[i].bytes_done; - int m = f->scan[i].bytes_left; - if (m > data_len - n) m = data_len - n; - // m is the bytes to scan in the current chunk - crc = f->scan[i].crc_so_far; - for (j=0; j < m; ++j) - crc = crc32_update(crc, data[n+j]); - f->scan[i].bytes_left -= m; - f->scan[i].crc_so_far = crc; - if (f->scan[i].bytes_left == 0) { - // does it match? - if (f->scan[i].crc_so_far == f->scan[i].goal_crc) { - // Houston, we have page - data_len = n+m; // consumption amount is wherever that scan ended - f->page_crc_tests = -1; // drop out of page scan mode - f->previous_length = 0; // decode-but-don't-output one frame - f->next_seg = -1; // start a new page - f->current_loc = f->scan[i].sample_loc; // set the current sample location - // to the amount we'd have decoded had we decoded this page - f->current_loc_valid = f->current_loc != ~0U; - return data_len; - } - // delete entry - f->scan[i] = f->scan[--f->page_crc_tests]; - } else { - ++i; - } - } - - return data_len; -} - -// return value: number of bytes we used -int stb_vorbis_decode_frame_pushdata( - stb_vorbis *f, // the file we're decoding - const uint8 *data, int data_len, // the memory available for decoding - int *channels, // place to write number of float * buffers - float ***output, // place to write float ** array of float * buffers - int *samples // place to write number of output samples - ) -{ - int i; - int len,right,left; - - if (!IS_PUSH_MODE(f)) return error(f, VORBIS_invalid_api_mixing); - - if (f->page_crc_tests >= 0) { - *samples = 0; - return vorbis_search_for_page_pushdata(f, (uint8 *) data, data_len); - } - - f->stream = (uint8 *) data; - f->stream_end = (uint8 *) data + data_len; - f->error = VORBIS__no_error; - - // check that we have the entire packet in memory - if (!is_whole_packet_present(f)) { - *samples = 0; - return 0; - } - - if (!vorbis_decode_packet(f, &len, &left, &right)) { - // save the actual error we encountered - enum STBVorbisError error = f->error; - if (error == VORBIS_bad_packet_type) { - // flush and resynch - f->error = VORBIS__no_error; - while (get8_packet(f) != EOP) - if (f->eof) break; - *samples = 0; - return (int) (f->stream - data); - } - if (error == VORBIS_continued_packet_flag_invalid) { - if (f->previous_length == 0) { - // we may be resynching, in which case it's ok to hit one - // of these; just discard the packet - f->error = VORBIS__no_error; - while (get8_packet(f) != EOP) - if (f->eof) break; - *samples = 0; - return (int) (f->stream - data); - } - } - // if we get an error while parsing, what to do? - // well, it DEFINITELY won't work to continue from where we are! - stb_vorbis_flush_pushdata(f); - // restore the error that actually made us bail - f->error = error; - *samples = 0; - return 1; - } - - // success! - len = vorbis_finish_frame(f, len, left, right); - for (i=0; i < f->channels; ++i) - f->outputs[i] = f->channel_buffers[i] + left; - - if (channels) *channels = f->channels; - *samples = len; - *output = f->outputs; - return (int) (f->stream - data); -} - -stb_vorbis *stb_vorbis_open_pushdata( - const unsigned char *data, int data_len, // the memory available for decoding - int *data_used, // only defined if result is not NULL - int *error, const stb_vorbis_alloc *alloc) -{ - stb_vorbis *f, p; - vorbis_init(&p, alloc); - p.stream = (uint8 *) data; - p.stream_end = (uint8 *) data + data_len; - p.push_mode = TRUE; - if (!start_decoder(&p)) { - if (p.eof) - *error = VORBIS_need_more_data; - else - *error = p.error; - return NULL; - } - f = vorbis_alloc(&p); - if (f) { - *f = p; - *data_used = (int) (f->stream - data); - *error = 0; - return f; - } else { - vorbis_deinit(&p); - return NULL; - } -} -#endif // STB_VORBIS_NO_PUSHDATA_API - -unsigned int stb_vorbis_get_file_offset(stb_vorbis *f) -{ - #ifndef STB_VORBIS_NO_PUSHDATA_API - if (f->push_mode) return 0; - #endif - if (USE_MEMORY(f)) return (unsigned int) (f->stream - f->stream_start); - #ifndef STB_VORBIS_NO_STDIO - return (unsigned int) (ftell(f->f) - f->f_start); - #endif -} - -#ifndef STB_VORBIS_NO_PULLDATA_API -// -// DATA-PULLING API -// - -static uint32 vorbis_find_page(stb_vorbis *f, uint32 *end, uint32 *last) -{ - for(;;) { - int n; - if (f->eof) return 0; - n = get8(f); - if (n == 0x4f) { // page header candidate - unsigned int retry_loc = stb_vorbis_get_file_offset(f); - int i; - // check if we're off the end of a file_section stream - if (retry_loc - 25 > f->stream_len) - return 0; - // check the rest of the header - for (i=1; i < 4; ++i) - if (get8(f) != ogg_page_header[i]) - break; - if (f->eof) return 0; - if (i == 4) { - uint8 header[27]; - uint32 i, crc, goal, len; - for (i=0; i < 4; ++i) - header[i] = ogg_page_header[i]; - for (; i < 27; ++i) - header[i] = get8(f); - if (f->eof) return 0; - if (header[4] != 0) goto invalid; - goal = header[22] + (header[23] << 8) + (header[24]<<16) + (header[25]<<24); - for (i=22; i < 26; ++i) - header[i] = 0; - crc = 0; - for (i=0; i < 27; ++i) - crc = crc32_update(crc, header[i]); - len = 0; - for (i=0; i < header[26]; ++i) { - int s = get8(f); - crc = crc32_update(crc, s); - len += s; - } - if (len && f->eof) return 0; - for (i=0; i < len; ++i) - crc = crc32_update(crc, get8(f)); - // finished parsing probable page - if (crc == goal) { - // we could now check that it's either got the last - // page flag set, OR it's followed by the capture - // pattern, but I guess TECHNICALLY you could have - // a file with garbage between each ogg page and recover - // from it automatically? So even though that paranoia - // might decrease the chance of an invalid decode by - // another 2^32, not worth it since it would hose those - // invalid-but-useful files? - if (end) - *end = stb_vorbis_get_file_offset(f); - if (last) { - if (header[5] & 0x04) - *last = 1; - else - *last = 0; - } - set_file_offset(f, retry_loc-1); - return 1; - } - } - invalid: - // not a valid page, so rewind and look for next one - set_file_offset(f, retry_loc); - } - } -} - - -#define SAMPLE_unknown 0xffffffff - -// seeking is implemented with a binary search, which narrows down the range to -// 64K, before using a linear search (because finding the synchronization -// pattern can be expensive, and the chance we'd find the end page again is -// relatively high for small ranges) -// -// two initial interpolation-style probes are used at the start of the search -// to try to bound either side of the binary search sensibly, while still -// working in O(log n) time if they fail. - -static int get_seek_page_info(stb_vorbis *f, ProbedPage *z) -{ - uint8 header[27], lacing[255]; - int i,len; - - // record where the page starts - z->page_start = stb_vorbis_get_file_offset(f); - - // parse the header - getn(f, header, 27); - if (header[0] != 'O' || header[1] != 'g' || header[2] != 'g' || header[3] != 'S') - return 0; - getn(f, lacing, header[26]); - - // determine the length of the payload - len = 0; - for (i=0; i < header[26]; ++i) - len += lacing[i]; - - // this implies where the page ends - z->page_end = z->page_start + 27 + header[26] + len; - - // read the last-decoded sample out of the data - z->last_decoded_sample = header[6] + (header[7] << 8) + (header[8] << 16) + (header[9] << 24); - - // restore file state to where we were - set_file_offset(f, z->page_start); - return 1; -} - -// rarely used function to seek back to the preceding page while finding the -// start of a packet -static int go_to_page_before(stb_vorbis *f, unsigned int limit_offset) -{ - unsigned int previous_safe, end; - - // now we want to seek back 64K from the limit - if (limit_offset >= 65536 && limit_offset-65536 >= f->first_audio_page_offset) - previous_safe = limit_offset - 65536; - else - previous_safe = f->first_audio_page_offset; - - set_file_offset(f, previous_safe); - - while (vorbis_find_page(f, &end, NULL)) { - if (end >= limit_offset && stb_vorbis_get_file_offset(f) < limit_offset) - return 1; - set_file_offset(f, end); - } - - return 0; -} - -// implements the search logic for finding a page and starting decoding. if -// the function succeeds, current_loc_valid will be true and current_loc will -// be less than or equal to the provided sample number (the closer the -// better). -static int seek_to_sample_coarse(stb_vorbis *f, uint32 sample_number) -{ - ProbedPage left, right, mid; - int i, start_seg_with_known_loc, end_pos, page_start; - uint32 delta, stream_length, padding, last_sample_limit; - double offset = 0.0, bytes_per_sample = 0.0; - int probe = 0; - - // find the last page and validate the target sample - stream_length = stb_vorbis_stream_length_in_samples(f); - if (stream_length == 0) return error(f, VORBIS_seek_without_length); - if (sample_number > stream_length) return error(f, VORBIS_seek_invalid); - - // this is the maximum difference between the window-center (which is the - // actual granule position value), and the right-start (which the spec - // indicates should be the granule position (give or take one)). - padding = ((f->blocksize_1 - f->blocksize_0) >> 2); - if (sample_number < padding) - last_sample_limit = 0; - else - last_sample_limit = sample_number - padding; - - left = f->p_first; - while (left.last_decoded_sample == ~0U) { - // (untested) the first page does not have a 'last_decoded_sample' - set_file_offset(f, left.page_end); - if (!get_seek_page_info(f, &left)) goto error; - } - - right = f->p_last; - assert(right.last_decoded_sample != ~0U); - - // starting from the start is handled differently - if (last_sample_limit <= left.last_decoded_sample) { - if (stb_vorbis_seek_start(f)) { - if (f->current_loc > sample_number) - return error(f, VORBIS_seek_failed); - return 1; - } - return 0; - } - - while (left.page_end != right.page_start) { - assert(left.page_end < right.page_start); - // search range in bytes - delta = right.page_start - left.page_end; - if (delta <= 65536) { - // there's only 64K left to search - handle it linearly - set_file_offset(f, left.page_end); - } else { - if (probe < 2) { - if (probe == 0) { - // first probe (interpolate) - double data_bytes = right.page_end - left.page_start; - bytes_per_sample = data_bytes / right.last_decoded_sample; - offset = left.page_start + bytes_per_sample * (last_sample_limit - left.last_decoded_sample); - } else { - // second probe (try to bound the other side) - double error = ((double) last_sample_limit - mid.last_decoded_sample) * bytes_per_sample; - if (error >= 0 && error < 8000) error = 8000; - if (error < 0 && error > -8000) error = -8000; - offset += error * 2; - } - - // ensure the offset is valid - if (offset < left.page_end) - offset = left.page_end; - if (offset > right.page_start - 65536) - offset = right.page_start - 65536; - - set_file_offset(f, (unsigned int) offset); - } else { - // binary search for large ranges (offset by 32K to ensure - // we don't hit the right page) - set_file_offset(f, left.page_end + (delta / 2) - 32768); - } - - if (!vorbis_find_page(f, NULL, NULL)) goto error; - } - - for (;;) { - if (!get_seek_page_info(f, &mid)) goto error; - if (mid.last_decoded_sample != ~0U) break; - // (untested) no frames end on this page - set_file_offset(f, mid.page_end); - assert(mid.page_start < right.page_start); - } - - // if we've just found the last page again then we're in a tricky file, - // and we're close enough (if it wasn't an interpolation probe). - if (mid.page_start == right.page_start) { - if (probe >= 2 || delta <= 65536) - break; - } else { - if (last_sample_limit < mid.last_decoded_sample) - right = mid; - else - left = mid; - } - - ++probe; - } - - // seek back to start of the last packet - page_start = left.page_start; - set_file_offset(f, page_start); - if (!start_page(f)) return error(f, VORBIS_seek_failed); - end_pos = f->end_seg_with_known_loc; - assert(end_pos >= 0); - - for (;;) { - for (i = end_pos; i > 0; --i) - if (f->segments[i-1] != 255) - break; - - start_seg_with_known_loc = i; - - if (start_seg_with_known_loc > 0 || !(f->page_flag & PAGEFLAG_continued_packet)) - break; - - // (untested) the final packet begins on an earlier page - if (!go_to_page_before(f, page_start)) - goto error; - - page_start = stb_vorbis_get_file_offset(f); - if (!start_page(f)) goto error; - end_pos = f->segment_count - 1; - } - - // prepare to start decoding - f->current_loc_valid = FALSE; - f->last_seg = FALSE; - f->valid_bits = 0; - f->packet_bytes = 0; - f->bytes_in_seg = 0; - f->previous_length = 0; - f->next_seg = start_seg_with_known_loc; - - for (i = 0; i < start_seg_with_known_loc; i++) - skip(f, f->segments[i]); - - // start decoding (optimizable - this frame is generally discarded) - if (!vorbis_pump_first_frame(f)) - return 0; - if (f->current_loc > sample_number) - return error(f, VORBIS_seek_failed); - return 1; - -error: - // try to restore the file to a valid state - stb_vorbis_seek_start(f); - return error(f, VORBIS_seek_failed); -} - -// the same as vorbis_decode_initial, but without advancing -static int peek_decode_initial(vorb *f, int *p_left_start, int *p_left_end, int *p_right_start, int *p_right_end, int *mode) -{ - int bits_read, bytes_read; - - if (!vorbis_decode_initial(f, p_left_start, p_left_end, p_right_start, p_right_end, mode)) - return 0; - - // either 1 or 2 bytes were read, figure out which so we can rewind - bits_read = 1 + ilog(f->mode_count-1); - if (f->mode_config[*mode].blockflag) - bits_read += 2; - bytes_read = (bits_read + 7) / 8; - - f->bytes_in_seg += bytes_read; - f->packet_bytes -= bytes_read; - skip(f, -bytes_read); - if (f->next_seg == -1) - f->next_seg = f->segment_count - 1; - else - f->next_seg--; - f->valid_bits = 0; - - return 1; -} - -int stb_vorbis_seek_frame(stb_vorbis *f, unsigned int sample_number) -{ - uint32 max_frame_samples; - - if (IS_PUSH_MODE(f)) return error(f, VORBIS_invalid_api_mixing); - - // fast page-level search - if (!seek_to_sample_coarse(f, sample_number)) - return 0; - - assert(f->current_loc_valid); - assert(f->current_loc <= sample_number); - - // linear search for the relevant packet - max_frame_samples = (f->blocksize_1*3 - f->blocksize_0) >> 2; - while (f->current_loc < sample_number) { - int left_start, left_end, right_start, right_end, mode, frame_samples; - if (!peek_decode_initial(f, &left_start, &left_end, &right_start, &right_end, &mode)) - return error(f, VORBIS_seek_failed); - // calculate the number of samples returned by the next frame - frame_samples = right_start - left_start; - if (f->current_loc + frame_samples > sample_number) { - return 1; // the next frame will contain the sample - } else if (f->current_loc + frame_samples + max_frame_samples > sample_number) { - // there's a chance the frame after this could contain the sample - vorbis_pump_first_frame(f); - } else { - // this frame is too early to be relevant - f->current_loc += frame_samples; - f->previous_length = 0; - maybe_start_packet(f); - flush_packet(f); - } - } - // the next frame should start with the sample - if (f->current_loc != sample_number) return error(f, VORBIS_seek_failed); - return 1; -} - -int stb_vorbis_seek(stb_vorbis *f, unsigned int sample_number) -{ - if (!stb_vorbis_seek_frame(f, sample_number)) - return 0; - - if (sample_number != f->current_loc) { - int n; - uint32 frame_start = f->current_loc; - stb_vorbis_get_frame_float(f, &n, NULL); - assert(sample_number > frame_start); - assert(f->channel_buffer_start + (int) (sample_number-frame_start) <= f->channel_buffer_end); - f->channel_buffer_start += (sample_number - frame_start); - } - - return 1; -} - -int stb_vorbis_seek_start(stb_vorbis *f) -{ - if (IS_PUSH_MODE(f)) { return error(f, VORBIS_invalid_api_mixing); } - set_file_offset(f, f->first_audio_page_offset); - f->previous_length = 0; - f->first_decode = TRUE; - f->next_seg = -1; - return vorbis_pump_first_frame(f); -} - -unsigned int stb_vorbis_stream_length_in_samples(stb_vorbis *f) -{ - unsigned int restore_offset, previous_safe; - unsigned int end, last_page_loc; - - if (IS_PUSH_MODE(f)) return error(f, VORBIS_invalid_api_mixing); - if (!f->total_samples) { - unsigned int last; - uint32 lo,hi; - char header[6]; - - // first, store the current decode position so we can restore it - restore_offset = stb_vorbis_get_file_offset(f); - - // now we want to seek back 64K from the end (the last page must - // be at most a little less than 64K, but let's allow a little slop) - if (f->stream_len >= 65536 && f->stream_len-65536 >= f->first_audio_page_offset) - previous_safe = f->stream_len - 65536; - else - previous_safe = f->first_audio_page_offset; - - set_file_offset(f, previous_safe); - // previous_safe is now our candidate 'earliest known place that seeking - // to will lead to the final page' - - if (!vorbis_find_page(f, &end, &last)) { - // if we can't find a page, we're hosed! - f->error = VORBIS_cant_find_last_page; - f->total_samples = 0xffffffff; - goto done; - } - - // check if there are more pages - last_page_loc = stb_vorbis_get_file_offset(f); - - // stop when the last_page flag is set, not when we reach eof; - // this allows us to stop short of a 'file_section' end without - // explicitly checking the length of the section - while (!last) { - set_file_offset(f, end); - if (!vorbis_find_page(f, &end, &last)) { - // the last page we found didn't have the 'last page' flag - // set. whoops! - break; - } - previous_safe = last_page_loc+1; - last_page_loc = stb_vorbis_get_file_offset(f); - } - - set_file_offset(f, last_page_loc); - - // parse the header - getn(f, (unsigned char *)header, 6); - // extract the absolute granule position - lo = get32(f); - hi = get32(f); - if (lo == 0xffffffff && hi == 0xffffffff) { - f->error = VORBIS_cant_find_last_page; - f->total_samples = SAMPLE_unknown; - goto done; - } - if (hi) - lo = 0xfffffffe; // saturate - f->total_samples = lo; - - f->p_last.page_start = last_page_loc; - f->p_last.page_end = end; - f->p_last.last_decoded_sample = lo; - - done: - set_file_offset(f, restore_offset); - } - return f->total_samples == SAMPLE_unknown ? 0 : f->total_samples; -} - -float stb_vorbis_stream_length_in_seconds(stb_vorbis *f) -{ - return stb_vorbis_stream_length_in_samples(f) / (float) f->sample_rate; -} - - - -int stb_vorbis_get_frame_float(stb_vorbis *f, int *channels, float ***output) -{ - int len, right,left,i; - if (IS_PUSH_MODE(f)) return error(f, VORBIS_invalid_api_mixing); - - if (!vorbis_decode_packet(f, &len, &left, &right)) { - f->channel_buffer_start = f->channel_buffer_end = 0; - return 0; - } - - len = vorbis_finish_frame(f, len, left, right); - for (i=0; i < f->channels; ++i) - f->outputs[i] = f->channel_buffers[i] + left; - - f->channel_buffer_start = left; - f->channel_buffer_end = left+len; - - if (channels) *channels = f->channels; - if (output) *output = f->outputs; - return len; -} - -#ifndef STB_VORBIS_NO_STDIO - -stb_vorbis * stb_vorbis_open_file_section(FILE *file, int close_on_free, int *error, const stb_vorbis_alloc *alloc, unsigned int length) -{ - stb_vorbis *f, p; - vorbis_init(&p, alloc); - p.f = file; - p.f_start = (uint32) ftell(file); - p.stream_len = length; - p.close_on_free = close_on_free; - if (start_decoder(&p)) { - f = vorbis_alloc(&p); - if (f) { - *f = p; - vorbis_pump_first_frame(f); - return f; - } - } - if (error) *error = p.error; - vorbis_deinit(&p); - return NULL; -} - -stb_vorbis * stb_vorbis_open_file(FILE *file, int close_on_free, int *error, const stb_vorbis_alloc *alloc) -{ - unsigned int len, start; - start = (unsigned int) ftell(file); - fseek(file, 0, SEEK_END); - len = (unsigned int) (ftell(file) - start); - fseek(file, start, SEEK_SET); - return stb_vorbis_open_file_section(file, close_on_free, error, alloc, len); -} - -stb_vorbis * stb_vorbis_open_filename(const char *filename, int *error, const stb_vorbis_alloc *alloc) -{ - FILE *f; -#if defined(_WIN32) && defined(__STDC_WANT_SECURE_LIB__) - if (0 != fopen_s(&f, filename, "rb")) - f = NULL; -#else - f = fopen(filename, "rb"); -#endif - if (f) - return stb_vorbis_open_file(f, TRUE, error, alloc); - if (error) *error = VORBIS_file_open_failure; - return NULL; -} -#endif // STB_VORBIS_NO_STDIO - -stb_vorbis * stb_vorbis_open_memory(const unsigned char *data, int len, int *error, const stb_vorbis_alloc *alloc) -{ - stb_vorbis *f, p; - if (data == NULL) return NULL; - vorbis_init(&p, alloc); - p.stream = (uint8 *) data; - p.stream_end = (uint8 *) data + len; - p.stream_start = (uint8 *) p.stream; - p.stream_len = len; - p.push_mode = FALSE; - if (start_decoder(&p)) { - f = vorbis_alloc(&p); - if (f) { - *f = p; - vorbis_pump_first_frame(f); - if (error) *error = VORBIS__no_error; - return f; - } - } - if (error) *error = p.error; - vorbis_deinit(&p); - return NULL; -} - -#ifndef STB_VORBIS_NO_INTEGER_CONVERSION -#define PLAYBACK_MONO 1 -#define PLAYBACK_LEFT 2 -#define PLAYBACK_RIGHT 4 - -#define L (PLAYBACK_LEFT | PLAYBACK_MONO) -#define C (PLAYBACK_LEFT | PLAYBACK_RIGHT | PLAYBACK_MONO) -#define R (PLAYBACK_RIGHT | PLAYBACK_MONO) - -static int8 channel_position[7][6] = -{ - { 0 }, - { C }, - { L, R }, - { L, C, R }, - { L, R, L, R }, - { L, C, R, L, R }, - { L, C, R, L, R, C }, -}; - - -#ifndef STB_VORBIS_NO_FAST_SCALED_FLOAT - typedef union { - float f; - int i; - } float_conv; - typedef char stb_vorbis_float_size_test[sizeof(float)==4 && sizeof(int) == 4]; - #define FASTDEF(x) float_conv x - // add (1<<23) to convert to int, then divide by 2^SHIFT, then add 0.5/2^SHIFT to round - #define MAGIC(SHIFT) (1.5f * (1 << (23-SHIFT)) + 0.5f/(1 << SHIFT)) - #define ADDEND(SHIFT) (((150-SHIFT) << 23) + (1 << 22)) - #define FAST_SCALED_FLOAT_TO_INT(temp,x,s) (temp.f = (x) + MAGIC(s), temp.i - ADDEND(s)) - #define check_endianness() -#else - #define FAST_SCALED_FLOAT_TO_INT(temp,x,s) ((int) ((x) * (1 << (s)))) - #define check_endianness() - #define FASTDEF(x) -#endif - -static void copy_samples(short *dest, float *src, int len) -{ - int i; - check_endianness(); - for (i=0; i < len; ++i) { - FASTDEF(temp); - int v = FAST_SCALED_FLOAT_TO_INT(temp, src[i],15); - if ((unsigned int) (v + 32768) > 65535) - v = v < 0 ? -32768 : 32767; - dest[i] = v; - } -} - -static void compute_samples(int mask, short *output, int num_c, float **data, int d_offset, int len) -{ - #define BUFFER_SIZE 32 - float buffer[BUFFER_SIZE]; - int i,j,o,n = BUFFER_SIZE; - check_endianness(); - for (o = 0; o < len; o += BUFFER_SIZE) { - memset(buffer, 0, sizeof(buffer)); - if (o + n > len) n = len - o; - for (j=0; j < num_c; ++j) { - if (channel_position[num_c][j] & mask) { - for (i=0; i < n; ++i) - buffer[i] += data[j][d_offset+o+i]; - } - } - for (i=0; i < n; ++i) { - FASTDEF(temp); - int v = FAST_SCALED_FLOAT_TO_INT(temp,buffer[i],15); - if ((unsigned int) (v + 32768) > 65535) - v = v < 0 ? -32768 : 32767; - output[o+i] = v; - } - } -} - -static void compute_stereo_samples(short *output, int num_c, float **data, int d_offset, int len) -{ - #define BUFFER_SIZE 32 - float buffer[BUFFER_SIZE]; - int i,j,o,n = BUFFER_SIZE >> 1; - // o is the offset in the source data - check_endianness(); - for (o = 0; o < len; o += BUFFER_SIZE >> 1) { - // o2 is the offset in the output data - int o2 = o << 1; - memset(buffer, 0, sizeof(buffer)); - if (o + n > len) n = len - o; - for (j=0; j < num_c; ++j) { - int m = channel_position[num_c][j] & (PLAYBACK_LEFT | PLAYBACK_RIGHT); - if (m == (PLAYBACK_LEFT | PLAYBACK_RIGHT)) { - for (i=0; i < n; ++i) { - buffer[i*2+0] += data[j][d_offset+o+i]; - buffer[i*2+1] += data[j][d_offset+o+i]; - } - } else if (m == PLAYBACK_LEFT) { - for (i=0; i < n; ++i) { - buffer[i*2+0] += data[j][d_offset+o+i]; - } - } else if (m == PLAYBACK_RIGHT) { - for (i=0; i < n; ++i) { - buffer[i*2+1] += data[j][d_offset+o+i]; - } - } - } - for (i=0; i < (n<<1); ++i) { - FASTDEF(temp); - int v = FAST_SCALED_FLOAT_TO_INT(temp,buffer[i],15); - if ((unsigned int) (v + 32768) > 65535) - v = v < 0 ? -32768 : 32767; - output[o2+i] = v; - } - } -} - -static void convert_samples_short(int buf_c, short **buffer, int b_offset, int data_c, float **data, int d_offset, int samples) -{ - int i; - if (buf_c != data_c && buf_c <= 2 && data_c <= 6) { - static int channel_selector[3][2] = { {0}, {PLAYBACK_MONO}, {PLAYBACK_LEFT, PLAYBACK_RIGHT} }; - for (i=0; i < buf_c; ++i) - compute_samples(channel_selector[buf_c][i], buffer[i]+b_offset, data_c, data, d_offset, samples); - } else { - int limit = buf_c < data_c ? buf_c : data_c; - for (i=0; i < limit; ++i) - copy_samples(buffer[i]+b_offset, data[i]+d_offset, samples); - for ( ; i < buf_c; ++i) - memset(buffer[i]+b_offset, 0, sizeof(short) * samples); - } -} - -int stb_vorbis_get_frame_short(stb_vorbis *f, int num_c, short **buffer, int num_samples) -{ - float **output = NULL; - int len = stb_vorbis_get_frame_float(f, NULL, &output); - if (len > num_samples) len = num_samples; - if (len) - convert_samples_short(num_c, buffer, 0, f->channels, output, 0, len); - return len; -} - -static void convert_channels_short_interleaved(int buf_c, short *buffer, int data_c, float **data, int d_offset, int len) -{ - int i; - check_endianness(); - if (buf_c != data_c && buf_c <= 2 && data_c <= 6) { - assert(buf_c == 2); - for (i=0; i < buf_c; ++i) - compute_stereo_samples(buffer, data_c, data, d_offset, len); - } else { - int limit = buf_c < data_c ? buf_c : data_c; - int j; - for (j=0; j < len; ++j) { - for (i=0; i < limit; ++i) { - FASTDEF(temp); - float f = data[i][d_offset+j]; - int v = FAST_SCALED_FLOAT_TO_INT(temp, f,15);//data[i][d_offset+j],15); - if ((unsigned int) (v + 32768) > 65535) - v = v < 0 ? -32768 : 32767; - *buffer++ = v; - } - for ( ; i < buf_c; ++i) - *buffer++ = 0; - } - } -} - -int stb_vorbis_get_frame_short_interleaved(stb_vorbis *f, int num_c, short *buffer, int num_shorts) -{ - float **output; - int len; - if (num_c == 1) return stb_vorbis_get_frame_short(f,num_c,&buffer, num_shorts); - len = stb_vorbis_get_frame_float(f, NULL, &output); - if (len) { - if (len*num_c > num_shorts) len = num_shorts / num_c; - convert_channels_short_interleaved(num_c, buffer, f->channels, output, 0, len); - } - return len; -} - -int stb_vorbis_get_samples_short_interleaved(stb_vorbis *f, int channels, short *buffer, int num_shorts) -{ - float **outputs; - int len = num_shorts / channels; - int n=0; - int z = f->channels; - if (z > channels) z = channels; - while (n < len) { - int k = f->channel_buffer_end - f->channel_buffer_start; - if (n+k >= len) k = len - n; - if (k) - convert_channels_short_interleaved(channels, buffer, f->channels, f->channel_buffers, f->channel_buffer_start, k); - buffer += k*channels; - n += k; - f->channel_buffer_start += k; - if (n == len) break; - if (!stb_vorbis_get_frame_float(f, NULL, &outputs)) break; - } - return n; -} - -int stb_vorbis_get_samples_short(stb_vorbis *f, int channels, short **buffer, int len) -{ - float **outputs; - int n=0; - int z = f->channels; - if (z > channels) z = channels; - while (n < len) { - int k = f->channel_buffer_end - f->channel_buffer_start; - if (n+k >= len) k = len - n; - if (k) - convert_samples_short(channels, buffer, n, f->channels, f->channel_buffers, f->channel_buffer_start, k); - n += k; - f->channel_buffer_start += k; - if (n == len) break; - if (!stb_vorbis_get_frame_float(f, NULL, &outputs)) break; - } - return n; -} - -#ifndef STB_VORBIS_NO_STDIO -int stb_vorbis_decode_filename(const char *filename, int *channels, int *sample_rate, short **output) -{ - int data_len, offset, total, limit, error; - short *data; - stb_vorbis *v = stb_vorbis_open_filename(filename, &error, NULL); - if (v == NULL) return -1; - limit = v->channels * 4096; - *channels = v->channels; - if (sample_rate) - *sample_rate = v->sample_rate; - offset = data_len = 0; - total = limit; - data = (short *) malloc(total * sizeof(*data)); - if (data == NULL) { - stb_vorbis_close(v); - return -2; - } - for (;;) { - int n = stb_vorbis_get_frame_short_interleaved(v, v->channels, data+offset, total-offset); - if (n == 0) break; - data_len += n; - offset += n * v->channels; - if (offset + limit > total) { - short *data2; - total *= 2; - data2 = (short *) realloc(data, total * sizeof(*data)); - if (data2 == NULL) { - free(data); - stb_vorbis_close(v); - return -2; - } - data = data2; - } - } - *output = data; - stb_vorbis_close(v); - return data_len; -} -#endif // NO_STDIO - -int stb_vorbis_decode_memory(const uint8 *mem, int len, int *channels, int *sample_rate, short **output) -{ - int data_len, offset, total, limit, error; - short *data; - stb_vorbis *v = stb_vorbis_open_memory(mem, len, &error, NULL); - if (v == NULL) return -1; - limit = v->channels * 4096; - *channels = v->channels; - if (sample_rate) - *sample_rate = v->sample_rate; - offset = data_len = 0; - total = limit; - data = (short *) malloc(total * sizeof(*data)); - if (data == NULL) { - stb_vorbis_close(v); - return -2; - } - for (;;) { - int n = stb_vorbis_get_frame_short_interleaved(v, v->channels, data+offset, total-offset); - if (n == 0) break; - data_len += n; - offset += n * v->channels; - if (offset + limit > total) { - short *data2; - total *= 2; - data2 = (short *) realloc(data, total * sizeof(*data)); - if (data2 == NULL) { - free(data); - stb_vorbis_close(v); - return -2; - } - data = data2; - } - } - *output = data; - stb_vorbis_close(v); - return data_len; -} -#endif // STB_VORBIS_NO_INTEGER_CONVERSION - -int stb_vorbis_get_samples_float_interleaved(stb_vorbis *f, int channels, float *buffer, int num_floats) -{ - float **outputs; - int len = num_floats / channels; - int n=0; - int z = f->channels; - if (z > channels) z = channels; - while (n < len) { - int i,j; - int k = f->channel_buffer_end - f->channel_buffer_start; - if (n+k >= len) k = len - n; - for (j=0; j < k; ++j) { - for (i=0; i < z; ++i) - *buffer++ = f->channel_buffers[i][f->channel_buffer_start+j]; - for ( ; i < channels; ++i) - *buffer++ = 0; - } - n += k; - f->channel_buffer_start += k; - if (n == len) - break; - if (!stb_vorbis_get_frame_float(f, NULL, &outputs)) - break; - } - return n; -} - -int stb_vorbis_get_samples_float(stb_vorbis *f, int channels, float **buffer, int num_samples) -{ - float **outputs; - int n=0; - int z = f->channels; - if (z > channels) z = channels; - while (n < num_samples) { - int i; - int k = f->channel_buffer_end - f->channel_buffer_start; - if (n+k >= num_samples) k = num_samples - n; - if (k) { - for (i=0; i < z; ++i) - memcpy(buffer[i]+n, f->channel_buffers[i]+f->channel_buffer_start, sizeof(float)*k); - for ( ; i < channels; ++i) - memset(buffer[i]+n, 0, sizeof(float) * k); - } - n += k; - f->channel_buffer_start += k; - if (n == num_samples) - break; - if (!stb_vorbis_get_frame_float(f, NULL, &outputs)) - break; - } - return n; -} -#endif // STB_VORBIS_NO_PULLDATA_API - -/* Version history - 1.17 - 2019-07-08 - fix CVE-2019-13217, -13218, -13219, -13220, -13221, -13222, -13223 - found with Mayhem by ForAllSecure - 1.16 - 2019-03-04 - fix warnings - 1.15 - 2019-02-07 - explicit failure if Ogg Skeleton data is found - 1.14 - 2018-02-11 - delete bogus dealloca usage - 1.13 - 2018-01-29 - fix truncation of last frame (hopefully) - 1.12 - 2017-11-21 - limit residue begin/end to blocksize/2 to avoid large temp allocs in bad/corrupt files - 1.11 - 2017-07-23 - fix MinGW compilation - 1.10 - 2017-03-03 - more robust seeking; fix negative ilog(); clear error in open_memory - 1.09 - 2016-04-04 - back out 'avoid discarding last frame' fix from previous version - 1.08 - 2016-04-02 - fixed multiple warnings; fix setup memory leaks; - avoid discarding last frame of audio data - 1.07 - 2015-01-16 - fixed some warnings, fix mingw, const-correct API - some more crash fixes when out of memory or with corrupt files - 1.06 - 2015-08-31 - full, correct support for seeking API (Dougall Johnson) - some crash fixes when out of memory or with corrupt files - 1.05 - 2015-04-19 - don't define __forceinline if it's redundant - 1.04 - 2014-08-27 - fix missing const-correct case in API - 1.03 - 2014-08-07 - Warning fixes - 1.02 - 2014-07-09 - Declare qsort compare function _cdecl on windows - 1.01 - 2014-06-18 - fix stb_vorbis_get_samples_float - 1.0 - 2014-05-26 - fix memory leaks; fix warnings; fix bugs in multichannel - (API change) report sample rate for decode-full-file funcs - 0.99996 - bracket #include for macintosh compilation by Laurent Gomila - 0.99995 - use union instead of pointer-cast for fast-float-to-int to avoid alias-optimization problem - 0.99994 - change fast-float-to-int to work in single-precision FPU mode, remove endian-dependence - 0.99993 - remove assert that fired on legal files with empty tables - 0.99992 - rewind-to-start - 0.99991 - bugfix to stb_vorbis_get_samples_short by Bernhard Wodo - 0.9999 - (should have been 0.99990) fix no-CRT support, compiling as C++ - 0.9998 - add a full-decode function with a memory source - 0.9997 - fix a bug in the read-from-FILE case in 0.9996 addition - 0.9996 - query length of vorbis stream in samples/seconds - 0.9995 - bugfix to another optimization that only happened in certain files - 0.9994 - bugfix to one of the optimizations that caused significant (but inaudible?) errors - 0.9993 - performance improvements; runs in 99% to 104% of time of reference implementation - 0.9992 - performance improvement of IMDCT; now performs close to reference implementation - 0.9991 - performance improvement of IMDCT - 0.999 - (should have been 0.9990) performance improvement of IMDCT - 0.998 - no-CRT support from Casey Muratori - 0.997 - bugfixes for bugs found by Terje Mathisen - 0.996 - bugfix: fast-huffman decode initialized incorrectly for sparse codebooks; fixing gives 10% speedup - found by Terje Mathisen - 0.995 - bugfix: fix to 'effective' overrun detection - found by Terje Mathisen - 0.994 - bugfix: garbage decode on final VQ symbol of a non-multiple - found by Terje Mathisen - 0.993 - bugfix: pushdata API required 1 extra byte for empty page (failed to consume final page if empty) - found by Terje Mathisen - 0.992 - fixes for MinGW warning - 0.991 - turn fast-float-conversion on by default - 0.990 - fix push-mode seek recovery if you seek into the headers - 0.98b - fix to bad release of 0.98 - 0.98 - fix push-mode seek recovery; robustify float-to-int and support non-fast mode - 0.97 - builds under c++ (typecasting, don't use 'class' keyword) - 0.96 - somehow MY 0.95 was right, but the web one was wrong, so here's my 0.95 rereleased as 0.96, fixes a typo in the clamping code - 0.95 - clamping code for 16-bit functions - 0.94 - not publically released - 0.93 - fixed all-zero-floor case (was decoding garbage) - 0.92 - fixed a memory leak - 0.91 - conditional compiles to omit parts of the API and the infrastructure to support them: STB_VORBIS_NO_PULLDATA_API, STB_VORBIS_NO_PUSHDATA_API, STB_VORBIS_NO_STDIO, STB_VORBIS_NO_INTEGER_CONVERSION - 0.90 - first public release -*/ - -#endif // STB_VORBIS_HEADER_ONLY - - -/* ------------------------------------------------------------------------------- -This software is available under 2 licenses -- choose whichever you prefer. ------------------------------------------------------------------------------- -ALTERNATIVE A - MIT License -Copyright (c) 2017 Sean Barrett -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies -of the Software, and to permit persons to whom the Software is furnished to do -so, subject to the following conditions: -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. ------------------------------------------------------------------------------- -ALTERNATIVE B - Public Domain (www.unlicense.org) -This is free and unencumbered software released into the public domain. -Anyone is free to copy, modify, publish, use, compile, sell, or distribute this -software, either in source code form or as a compiled binary, for any purpose, -commercial or non-commercial, and by any means. -In jurisdictions that recognize copyright laws, the author or authors of this -software dedicate any and all copyright interest in the software to the public -domain. We make this dedication for the benefit of the public at large and to -the detriment of our heirs and successors. We intend this dedication to be an -overt act of relinquishment in perpetuity of all present and future rights to -this software under copyright law. -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ------------------------------------------------------------------------------- -*/ \ No newline at end of file