Add sdl2_image example

Author: sharkwouter

_includes/samples/sdl2_image/CMakeLists.txt

@@ -0,0 +1,31 @@
+cmake_minimum_required(VERSION 3.5)
+
+project(sdl2-image)
+
+add_executable(${PROJECT_NAME} main.c)
+
+include(FindPkgConfig)
+pkg_search_module(SDL2 REQUIRED sdl2)
+pkg_search_module(SDL2_IMAGE REQUIRED SDL2_image)
+
+target_include_directories(${PROJECT_NAME} PRIVATE
+    ${SDL2_INCLUDE_DIRS}
+    ${SDL2_IMAGE_INCLUDE_DIRS}
+)
+
+target_link_libraries(${PROJECT_NAME} PRIVATE
+    ${SDL2_LIBRARIES}
+    ${SDL2_IMAGE_LIBRARIES}
+)
+
+if(PSP)
+    # Create an EBOOT.PBP file
+    create_pbp_file(
+        TARGET ${PROJECT_NAME}
+        ICON_PATH NULL
+        BACKGROUND_PATH NULL
+        PREVIEW_PATH NULL
+        TITLE ${PROJECT_NAME}
+        VERSION 01.00
+    )
+endif()

_includes/samples/sdl2_image/main.c

@@ -0,0 +1,73 @@
+#include <SDL.h>
+#include <SDL_image.h>
+
+int main(int argc, char *argv[])
+{
+    SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMECONTROLLER);
+
+    // Enable png support for SDL2_image
+    IMG_Init(IMG_INIT_PNG);
+
+    SDL_Window * window = SDL_CreateWindow(
+        "window",
+        SDL_WINDOWPOS_UNDEFINED,
+        SDL_WINDOWPOS_UNDEFINED,
+        480,
+        272,
+        0
+    );
+
+    SDL_Renderer * renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+
+    // Load the texture
+    SDL_Surface * pixels = IMG_Load("grass.png");
+    SDL_Texture * sprite = SDL_CreateTextureFromSurface(renderer, pixels);
+    SDL_FreeSurface(pixels);
+
+    // Store the dimensions of the texture
+    SDL_Rect sprite_rect;
+    SDL_QueryTexture(sprite, NULL, NULL, &sprite_rect.w, &sprite_rect.h);
+
+    // Set the position to draw to in the middle of the screen
+    sprite_rect.x = 480/2 - sprite_rect.w/2;
+    sprite_rect.y = 272/2 - sprite_rect.h/2;
+
+    int running = 1;
+    SDL_Event event;
+    while (running) { 
+        // Process input
+        if (SDL_PollEvent(&event)) {
+            switch (event.type) {
+                case SDL_QUIT:
+                    // End the loop if the programs is being closed
+                    running = 0;
+                    break;
+                case SDL_CONTROLLERDEVICEADDED:
+                    // Connect a controller when it is connected
+                    SDL_GameControllerOpen(event.cdevice.which);
+                    break;
+                case SDL_CONTROLLERBUTTONDOWN:
+                    if(event.cbutton.button == SDL_CONTROLLER_BUTTON_START) {
+                        // Close the program if start is pressed
+                        running = 0;
+                    }
+                    break;
+            }
+        }
+
+        // Clear the screen
+        SDL_RenderClear(renderer);
+
+        // Draw a red square
+        SDL_RenderCopy(renderer, sprite, NULL, &sprite_rect);
+
+        // Draw everything on a white background
+        SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
+        SDL_RenderPresent(renderer);
+    }
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+
+    return 0;
+}