255 lines
7.7 KiB
C++
255 lines
7.7 KiB
C++
#include "core/jdraw8.hpp"
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#include <fstream>
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#include "core/jfile.hpp"
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#include "core/jshader.hpp"
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#include "external/gif.h"
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#define SCREEN_WIDTH 960
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#define SCREEN_HEIGHT 720
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JD8_Surface screen = NULL;
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JD8_Palette main_palette = NULL;
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Uint32 *pixel_data = NULL;
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int screenWidth = 320;
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int screenHeight = 200;
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Uint32 contadorFPS = 0;
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Uint32 tempsFPS = SDL_GetTicks();
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char *fps = (char *)malloc(10);
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SDL_Window *sdlWindow = NULL;
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SDL_Renderer *sdlRenderer = NULL;
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SDL_Texture *sdlTexture = NULL;
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SDL_Texture *backBuffer = NULL;
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void JD8_Init(const char *title) {
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screen = (JD8_Surface)calloc(1, 64000);
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main_palette = (JD8_Palette)calloc(1, 768);
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pixel_data = (Uint32 *)calloc(1, 320 * 200 * 4); // 1048576 );
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sdlWindow = SDL_CreateWindow(title, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_OPENGL);
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SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengl");
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// SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "nearest");
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sdlRenderer = SDL_CreateRenderer(sdlWindow, NULL);
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sdlTexture = SDL_CreateTexture(sdlRenderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STREAMING, 320, 200);
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backBuffer = SDL_CreateTexture(sdlRenderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_TARGET, 320, 200);
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int filesize = 0;
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char *buffer = file_getfilebuffer("crtpi.glsl", filesize, true);
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shader::init(sdlWindow, backBuffer, buffer);
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free(buffer);
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}
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void JD8_Quit() {
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if (screen != NULL) free(screen);
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if (main_palette != NULL) free(main_palette);
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if (pixel_data != NULL) free(pixel_data);
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SDL_DestroyRenderer(sdlRenderer);
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SDL_DestroyWindow(sdlWindow);
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}
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void JD8_ClearScreen(Uint8 color) {
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memset(screen, color, 64000);
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}
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JD8_Surface JD8_NewSurface() {
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JD8_Surface surface = (JD8_Surface)malloc(64000);
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memset(surface, 0, 64000);
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return surface;
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}
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JD8_Surface JD8_LoadSurface(const char *file) {
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int filesize = 0;
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char *buffer = file_getfilebuffer(file, filesize);
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unsigned short w, h;
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Uint8 *pixels = LoadGif((unsigned char *)buffer, &w, &h);
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free(buffer);
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if (pixels == NULL) {
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printf("Unable to load bitmap: %s\n", SDL_GetError());
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exit(1);
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}
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JD8_Surface image = JD8_NewSurface();
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memcpy(image, pixels, 64000);
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free(pixels);
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return image;
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}
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JD8_Palette JD8_LoadPalette(const char *file) {
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int filesize = 0;
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char *buffer = NULL;
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buffer = file_getfilebuffer(file, filesize);
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JD8_Palette palette = (JD8_Palette)LoadPalette((unsigned char *)buffer);
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return palette;
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}
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void JD8_SetScreenPalette(JD8_Palette palette) {
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if (main_palette == palette) return;
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if (main_palette != NULL) free(main_palette);
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main_palette = palette;
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}
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void JD8_FillSquare(int ini, int height, Uint8 color) {
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const int offset = ini * 320;
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const int size = height * 320;
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memset(&screen[offset], color, size);
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}
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void JD8_Blit(JD8_Surface surface) {
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memcpy(screen, surface, 64000);
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}
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void JD8_Blit(int x, int y, JD8_Surface surface, int sx, int sy, int sw, int sh) {
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int src_pointer = sx + (sy * 320);
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int dst_pointer = x + (y * 320);
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for (int i = 0; i < sh; i++) {
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memcpy(&screen[dst_pointer], &surface[src_pointer], sw);
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src_pointer += 320;
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dst_pointer += 320;
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}
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}
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void JD8_BlitToSurface(int x, int y, JD8_Surface surface, int sx, int sy, int sw, int sh, JD8_Surface dest) {
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int src_pointer = sx + (sy * 320);
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int dst_pointer = x + (y * 320);
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for (int i = 0; i < sh; i++) {
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memcpy(&dest[dst_pointer], &surface[src_pointer], sw);
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src_pointer += 320;
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dst_pointer += 320;
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}
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}
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void JD8_BlitCK(int x, int y, JD8_Surface surface, int sx, int sy, int sw, int sh, Uint8 colorkey) {
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int src_pointer = sx + (sy * 320);
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int dst_pointer = x + (y * 320);
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for (int j = 0; j < sh; j++) {
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for (int i = 0; i < sw; i++) {
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if (surface[src_pointer + i] != colorkey) screen[dst_pointer + i] = surface[src_pointer + i];
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}
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src_pointer += 320;
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dst_pointer += 320;
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}
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}
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void JD8_BlitCKCut(int x, int y, JD8_Surface surface, int sx, int sy, int sw, int sh, Uint8 colorkey) {
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int src_pointer = sx + (sy * 320);
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int dst_pointer = x + (y * 320);
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for (int j = 0; j < sh; j++) {
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for (int i = 0; i < sw; i++) {
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if (surface[src_pointer + i] != colorkey && (x + i >= 0) && (y + j >= 0) && (x + i < 320) && (y + j < 200)) screen[dst_pointer + i] = surface[src_pointer + i];
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}
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src_pointer += 320;
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dst_pointer += 320;
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}
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}
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void JD8_BlitCKScroll(int y, JD8_Surface surface, int sx, int sy, int sh, Uint8 colorkey) {
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int dst_pointer = y * 320;
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for (int j = sy; j < sy + sh; j++) {
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for (int i = 0; i < 320; i++) {
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int x = (i + sx) % 320;
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if (surface[x + j * 320] != colorkey) screen[dst_pointer] = surface[x + j * 320];
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dst_pointer++;
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}
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}
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}
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void JD8_BlitCKToSurface(int x, int y, JD8_Surface surface, int sx, int sy, int sw, int sh, JD8_Surface dest, Uint8 colorkey) {
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int src_pointer = sx + (sy * 320);
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int dst_pointer = x + (y * 320);
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for (int j = 0; j < sh; j++) {
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for (int i = 0; i < sw; i++) {
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if (surface[src_pointer + i] != colorkey) dest[dst_pointer + i] = surface[src_pointer + i];
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}
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src_pointer += 320;
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dst_pointer += 320;
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}
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}
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SDL_Rect rect{0, 0, SCREEN_WIDTH, SCREEN_HEIGHT};
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void JD8_Flip() {
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for (int x = 0; x < 320; x++) {
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for (int y = 0; y < 200; y++) {
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Uint32 color = 0xFF000000 + main_palette[screen[x + (y * 320)]].r + (main_palette[screen[x + (y * 320)]].g << 8) + (main_palette[screen[x + (y * 320)]].b << 16);
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pixel_data[x + (y * 320)] = color;
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}
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}
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SDL_UpdateTexture(sdlTexture, NULL, pixel_data, 320 * sizeof(Uint32));
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SDL_SetRenderTarget(sdlRenderer, backBuffer);
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SDL_RenderTexture(sdlRenderer, sdlTexture, NULL, NULL);
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shader::render();
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// SDL_RenderPresent(sdlRenderer);
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}
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void JD8_FreeSurface(JD8_Surface surface) {
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free(surface);
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}
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Uint8 JD8_GetPixel(JD8_Surface surface, int x, int y) {
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return surface[x + (y * 320)];
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}
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void JD8_PutPixel(JD8_Surface surface, int x, int y, Uint8 pixel) {
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surface[x + (y * 320)] = pixel;
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}
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void JD8_SetPaletteColor(Uint8 index, Uint8 r, Uint8 g, Uint8 b) {
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main_palette[index].r = r << 2;
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main_palette[index].g = g << 2;
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main_palette[index].b = b << 2;
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}
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void JD8_FadeOut() {
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for (int j = 0; j < 32; j++) {
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for (int i = 0; i < 256; i++) {
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if (main_palette[i].r >= 8)
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main_palette[i].r -= 8;
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else
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main_palette[i].r = 0;
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if (main_palette[i].g >= 8)
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main_palette[i].g -= 8;
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else
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main_palette[i].g = 0;
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if (main_palette[i].b >= 8)
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main_palette[i].b -= 8;
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else
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main_palette[i].b = 0;
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}
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JD8_Flip();
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}
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}
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#define MAX(a, b) (a) > (b) ? (a) : (b)
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void JD8_FadeToPal(JD8_Palette pal) {
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for (int j = 0; j < 32; j++) {
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for (int i = 0; i < 256; i++) {
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if (main_palette[i].r <= int(pal[i].r) - 8)
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main_palette[i].r += 8;
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else
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main_palette[i].r = pal[i].r;
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if (main_palette[i].g <= int(pal[i].g) - 8)
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main_palette[i].g += 8;
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else
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main_palette[i].g = pal[i].g;
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if (main_palette[i].b <= int(pal[i].b) - 8)
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main_palette[i].b += 8;
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else
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main_palette[i].b = pal[i].b;
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}
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JD8_Flip();
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}
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}
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