import sdl, some tests, nothing work yet

platform/sdl/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(tests)

platform/sdl/tests/CMakeLists.txt

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+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/tests/)
+
+set(testFiles sdl_minimal_test.cpp sdl_surface_test.cpp
+              )
+
+foreach (testFile ${testFiles})
+    string(REGEX MATCH "([^\/]+$)" filename ${testFile})
+    string(REGEX MATCH "[^.]*" executable_name test_${filename})
+    add_executable(${executable_name} ${testFile})
+    target_link_libraries(${executable_name} ${SDL2_LIBRARIES} )
+    add_test(NAME ${executable_name} COMMAND ${executable_name})
+endforeach ()
+
+
+add_executable(sdl_fullscreen_window sdl_fullscreen_window.cpp)
+target_link_libraries(sdl_fullscreen_window ${SDL2_LIBRARIES} )

platform/sdl/tests/sdl_fullscreen_window.cpp

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+#include <iostream>
+#include <SDL2/SDL.h>
+
+int main(int argc, char* argv[]) {
+    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+        SDL_Log("Unable to initialize SDL: %s", SDL_GetError());
+        return -1;
+    }
+
+    SDL_Window* window = SDL_CreateWindow("Fullscreen Toggle with Aspect Ratio",
+                                          SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
+                                          640, 480, SDL_WINDOW_RESIZABLE);
+
+    if (!window) {
+        SDL_Log("Unable to create window: %s", SDL_GetError());
+        SDL_Quit();
+        return -1;
+    }
+
+    SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+    if (!renderer) {
+        SDL_Log("Unable to create renderer: %s", SDL_GetError());
+        SDL_DestroyWindow(window);
+        SDL_Quit();
+        return -1;
+    }
+
+    int isFullscreen = 0;
+    int running = 1;
+    SDL_Event event;
+
+    while (running) {
+        while (SDL_PollEvent(&event)) {
+            if (event.type == SDL_QUIT) {
+                running = 0;
+            }
+            if (event.type == SDL_KEYDOWN) {
+                if (event.key.keysym.sym == SDLK_RETURN && (event.key.keysym.mod & KMOD_ALT)) {
+                    // Přepnutí mezi fullscreen a oknem
+                    isFullscreen = !isFullscreen;
+                    SDL_SetWindowFullscreen(window, isFullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
+                }
+            }
+        }
+
+        // Renderování
+        SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
+        SDL_RenderClear(renderer);
+        SDL_RenderPresent(renderer);
+    }
+
+    // Uklid zdrojů
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+    return 0;
+}

platform/sdl/tests/sdl_minimal_test.cpp

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+#include <SDL2/SDL.h>
+#include <iostream>
+
+int main(int argc, char* argv[]) {
+    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
+        std::cerr << "SDL Initialization Error: " << SDL_GetError() << std::endl;
+        return 1;
+    }
+
+    SDL_Window* window = SDL_CreateWindow("SDL Window",
+                                          SDL_WINDOWPOS_CENTERED,
+                                          SDL_WINDOWPOS_CENTERED,
+                                          800, 600,
+                                          SDL_WINDOW_SHOWN);
+
+    if (!window) {
+        std::cerr << "Window Creation Error: " << SDL_GetError() << std::endl;
+        SDL_Quit();
+        return 1;
+    }
+
+    SDL_Delay(500); // Zobrazí okno na 3 sekundy
+
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+    return 0;
+}

platform/sdl/tests/sdl_surface_test.cpp

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+#include <SDL2/SDL.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define WIDTH 640
+#define HEIGHT 480
+
+
+int main(int argc, char *argv[]) {
+    // Inicializace SDL
+    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
+        fprintf(stderr, "Chyba při inicializaci SDL: %s\n", SDL_GetError());
+        return 1;
+    }
+
+    // Vytvoření SDL okna
+    SDL_Window *window = SDL_CreateWindow("DOS Game Port", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, WIDTH, HEIGHT, 0);
+    if (!window) {
+        fprintf(stderr, "Chyba při vytváření okna: %s\n", SDL_GetError());
+        SDL_Quit();
+        return 1;
+    }
+
+    // Vytvoření rendereru (pouze pro zobrazení)
+    SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+    if (!renderer) {
+        fprintf(stderr, "Chyba při vytváření rendereru: %s\n", SDL_GetError());
+        SDL_DestroyWindow(window);
+        SDL_Quit();
+        return 1;
+    }
+
+    // Vytvoření SDL Surface (backbuffer)
+    SDL_Texture *texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGB565,SDL_TEXTUREACCESS_STREAMING, WIDTH, HEIGHT);
+    if (!texture) {
+        fprintf(stderr, "Chyba při vytváření surface: %s\n", SDL_GetError());
+        SDL_DestroyRenderer(renderer);
+        SDL_DestroyWindow(window);
+        SDL_Quit();
+        return 1;
+    }
+
+    void *raw_pixels;
+    int pitch;
+    SDL_LockTexture(texture, NULL, &raw_pixels, &pitch);
+    // Přímý přístup do paměti surface
+    Uint16 *pixels = reinterpret_cast<Uint16 *>(raw_pixels);
+    printf("Adresa pixelů: %p, pitch: %d bajtů\n", (void *)pixels, pitch);
+
+    // Software rendering - příklad kreslení do paměti
+    for (int y = 0; y < HEIGHT; y++) {
+        for (int x = 0; x < WIDTH; x++) {
+            Uint16 color = (x ^ y) & 0xFFFF; // Příklad barvy
+            pixels[y * (pitch / 2) + x] = color; // Zápis pixelu
+        }
+    }
+
+    SDL_UnlockTexture(texture);
+
+    SDL_RenderClear(renderer);
+    SDL_RenderCopy(renderer, texture, NULL, NULL);
+    SDL_RenderPresent(renderer);
+
+    SDL_Delay(3000); // Zobrazení okna na 3 sekundy
+
+    // Uvolnění zdrojů
+    SDL_DestroyTexture(texture);
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+
+    return 0;
+}