en proces de pasar a SDL3

.gitignore

@@ -1,2 +1,107 @@
+demo6_palette
+build/
+
+# ---> C++
+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
 *.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
 *.exe
+*.out
+*.app
+
+# ---> macOS
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# ---> Windows
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# ---> Linux
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+

CMakeLists.txt

@@ -0,0 +1,49 @@
+cmake_minimum_required(VERSION 3.20)
+project(demo6_palette)
+
+# Establecer el estándar de C++
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# Opciones comunes de compilación
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Os -ffunction-sections -fdata-sections")
+
+# Buscar SDL3 automáticamente
+find_package(SDL3 REQUIRED)
+
+# Si no se encuentra SDL3, generar un error
+if (NOT SDL3_FOUND)
+    message(FATAL_ERROR "SDL3 no encontrado. Por favor, verifica su instalación.")
+endif()
+
+# Archivos fuente
+file(GLOB SOURCE_FILES source/*.cpp)
+
+# Comprobar si se encontraron archivos fuente
+if(NOT SOURCE_FILES)
+    message(FATAL_ERROR "No se encontraron archivos fuente en el directorio 'source/'. Verifica la ruta.")
+endif()
+
+# Detectar la plataforma y configuraciones específicas
+if(WIN32)
+    set(PLATFORM windows)
+    set(LINK_LIBS ${SDL3_LIBRARIES} mingw32 ws2_32)
+elseif(UNIX AND NOT APPLE)
+    set(PLATFORM linux)
+    set(LINK_LIBS ${SDL3_LIBRARIES})
+elseif(APPLE)
+    set(PLATFORM macos)
+    set(LINK_LIBS ${SDL3_LIBRARIES})
+endif()
+
+# Incluir directorios de SDL3
+include_directories(${SDL3_INCLUDE_DIRS})
+
+# Añadir el ejecutable reutilizando el nombre del proyecto
+add_executable(${PROJECT_NAME} ${SOURCE_FILES})
+
+# Especificar la ubicación del ejecutable (en la raíz del proyecto)
+set_target_properties(${PROJECT_NAME} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR})
+
+# Enlazar las bibliotecas necesarias
+target_link_libraries(${PROJECT_NAME} ${LINK_LIBS})

Makefile

@@ -1,12 +1,20 @@
-name = paleta
+# Variables comunes
-executable = $(name)
+SOURCE          := source/*.cpp
-source = *.cpp
+EXECUTABLE_NAME := demo6_palette
+CXXFLAGS        := -std=c++20 -Wall -Os -ffunction-sections -fdata-sections # Opciones comunes de compilación
+LDFLAGS         := -lSDL3 # Flags de enlace comunes
+OUTPUT_EXT      :=
 
-windows:
+# Detectar plataforma y configurar
-	g++ $(source) -std=c++11 -Wall -lmingw32 -lSDL2main -lSDL2 -mwindows -o $(executable).exe
+ifeq ($(OS),Windows_NT)
+    LDFLAGS += -lmingw32 -lws2_32
+    OUTPUT_EXT := .exe
+endif
 
-linux:
+# Regla principal: compilar el ejecutable
-	g++ $(source) -std=c++11 -Wall -lSDL2 -o $(executable).o
+all:
+	$(CXX) $(SOURCE) $(CXXFLAGS) $(LDFLAGS) -o $(EXECUTABLE_NAME)$(OUTPUT_EXT)
 
-macos:
+# Regla para limpiar archivos generados
-	clang++ $(source) -std=c++11 -Wall -lSDL2 -ffunction-sections -fdata-sections -o $(executable).o
+clean:
+	rm -f $(EXECUTABLE_NAME)$(OUTPUT_EXT)

README.md

@@ -0,0 +1,3 @@
+# demo6_palette
+
+Demo de SDL que mostra com canviar la paleta dels sprites

source/game.cpp

@@ -2,11 +2,11 @@
 
 void init()
 {
-    jInit("tutorial_paleta", 320, 240, 2);
+    jInit("demo6_palette", 320, 240, 2);
     jSetPal(0, 0x00000000);
     jCls(0);
-    jSurface peiv = jLoadSurface("williams.gif");
+    jSurface peiv = jLoadSurface("resources/williams.gif");
-    jLoadPal("pal01.gif");
+    jLoadPal("resources/pal01.gif");
     jSetSource(peiv);
 }
 

source/jUnit.cpp

@@ -8,12 +8,12 @@ struct jSurface_s
     Uint16 w, h;
 };
 
-static SDL_Window *jWin = NULL;
+static SDL_Window *jWin = nullptr;
-static SDL_Renderer *jRen = NULL;
+static SDL_Renderer *jRen = nullptr;
-static SDL_Texture *jTex = NULL;
+static SDL_Texture *jTex = nullptr;
 static jSurface jScreen;
 static jSurface jDestSurf;
-static jSurface jSourceSurf = NULL;
+static jSurface jSourceSurf = nullptr;
 static Uint32 paleta[256];
 static int jWidth = 320;
 static int jHeight = 240;
@@ -31,19 +31,16 @@ jSurface jNewSurface(int w, int h)
 
 void jDeleteSurface(jSurface surf)
 {
-    if (surf == NULL)
+    if (surf)
-        return;
+    {
-    if (surf->data != NULL)
         free(surf->data);
-    free(surf);
+        free(surf);
+    }
 }
 
 void jSetDest(jSurface surf)
 {
-    if (surf == NULL)
+    jDestSurf = (surf == nullptr) ? jScreen : surf;
-        jDestSurf = jScreen;
-    else
-        jDestSurf = surf;
 }
 
 void jSetSource(jSurface surf)
@@ -53,13 +50,17 @@ void jSetSource(jSurface surf)
 
 void jBlit(int dx, int dy, int sx, int sy, int w, int h)
 {
-    if (jSourceSurf == NULL)
+    if (jSourceSurf == nullptr)
+    {
         return;
-    
+    }
+
     for (int iy = 0; iy < h; ++iy)
     {
         for (int ix = 0; ix < w; ++ix)
+        {
             jPutPixel(dx + ix, dy + iy, jGetPixel(sx + ix, sy + iy));
+        }
     }
 }
 
@@ -67,7 +68,9 @@ jSurface jLoadSurface(const char *filename)
 {
     FILE *f = fopen(filename, "rb");
     if (!f)
-        return NULL;
+    {
+        return nullptr;
+    }
 
     fseek(f, 0, SEEK_END);
     long size = ftell(f);
@@ -78,9 +81,9 @@ jSurface jLoadSurface(const char *filename)
 
     Uint16 w, h;
     Uint8 *pixels = LoadGif(buffer, &w, &h);
-    if (pixels == NULL)
+    if (pixels == nullptr)
     {
-        return NULL;
+        return nullptr;
     }
     jSurface surf = (jSurface)malloc(sizeof(jSurface_s));
     surf->w = w;
@@ -94,7 +97,9 @@ void jLoadPal(const char *filename)
 {
     FILE *f = fopen(filename, "rb");
     if (!f)
+    {
         return;
+    }
 
     fseek(f, 0, SEEK_END);
     long size = ftell(f);
@@ -104,7 +109,7 @@ void jLoadPal(const char *filename)
     fclose(f);
 
     Uint32 *pal = LoadPalette(buffer);
-    if (pal == NULL)
+    if (pal == nullptr)
     {
         return;
     }
@@ -117,13 +122,13 @@ void jLoadPal(const char *filename)
 
 void jInit(const char *titol, int w, int h, int z)
 {
-    SDL_Init(SDL_INIT_EVERYTHING);
+    SDL_Init(SDL_INIT_VIDEO);
     jWidth = w;
     jHeight = h;
     jZoom = z;
-    jWin = SDL_CreateWindow(titol, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, w * z, h * z, SDL_WINDOW_SHOWN);
+    jWin = SDL_CreateWindow(titol, w * z, h * z, 0);
-    jRen = SDL_CreateRenderer(jWin, -1, 0);
+    jRen = SDL_CreateRenderer(jWin, nullptr);
-    SDL_RenderSetLogicalSize(jRen, w, h);
+    SDL_SetRenderLogicalPresentation(jRen, w, h, SDL_LOGICAL_PRESENTATION_INTEGER_SCALE);
     jTex = SDL_CreateTexture(jRen, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, w, h);
     jScreen = jNewSurface(w, h);
     jDestSurf = jScreen;
@@ -137,25 +142,31 @@ void jSetPal(int index, Uint32 color)
 void jCls(Uint8 color)
 {
     for (int i = 0; i < jDestSurf->w * jDestSurf->h; ++i)
+    {
         jDestSurf->data[i] = color;
+    }
 }
 
 void jFlip()
 {
     Uint32 *pixels;
     int pitch;
-    SDL_LockTexture(jTex, NULL, (void **)&pixels, &pitch);
+    SDL_LockTexture(jTex, nullptr, (void **)&pixels, &pitch);
     for (int i = 0; i < jWidth * jHeight; ++i)
+    {
         pixels[i] = paleta[jScreen->data[i]];
+    }
     SDL_UnlockTexture(jTex);
-    SDL_RenderCopy(jRen, jTex, NULL, NULL);
+    SDL_RenderTexture(jRen, jTex, nullptr, nullptr);
     SDL_RenderPresent(jRen);
 }
 
 void jPutPixel(int x, int y, Uint8 color)
 {
     if (x < 0 || y < 0 || x >= jDestSurf->w || y >= jDestSurf->h || color == transparentColor)
+    {
         return;
+    }
     jDestSurf->data[x + y * jDestSurf->w] = color;
 }
 

source/jUnit.h

@@ -1,5 +1,5 @@
 #pragma once
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 typedef struct jSurface_s *jSurface;
 

source/paleta.cpp

@@ -3,13 +3,13 @@
 int main(int argc, char *argv[])
 {
     init();
-    SDL_Event sdlEvent;
+    SDL_Event event;
     bool exit = false;
     while (!exit)
     {
-        while (SDL_PollEvent(&sdlEvent))
+        while (SDL_PollEvent(&event))
         {
-            if (sdlEvent.type == SDL_QUIT)
+            if ((event.type == SDL_EVENT_QUIT) || (event.type == SDL_EVENT_KEY_DOWN && event.key.repeat == 0 && event.key.key == SDLK_ESCAPE))
             {
                 exit = true;
                 break;