如何在OSX下的SDL/OpenGL应用程序中加载JPG/PNG纹理

#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>
#include <OpenGL/gl.h>

GLuint loadTexture(const char* filename) {
    SDL_Surface* surface = IMG_Load(filename);
    if (!surface) {
        // 图像加载失败处理
        return 0;
    }

    GLuint texture;
    glGenTextures(1, &texture);
    glBindTexture(GL_TEXTURE_2D, texture);

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, surface->w, surface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);

    SDL_FreeSurface(surface);

    return texture;
}

int main() {
    SDL_Init(SDL_INIT_VIDEO);

    SDL_Window* window = SDL_CreateWindow("SDL/OpenGL Texture", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 800, 600, SDL_WINDOW_OPENGL);
    SDL_GLContext context = SDL_GL_CreateContext(window);

    // 初始化OpenGL

    // 加载纹理
    GLuint texture = loadTexture("texture.jpg");

    // 渲染循环
    bool quit = false;
    while (!quit) {
        SDL_Event event;
        while (SDL_PollEvent(&event)) {
            if (event.type == SDL_QUIT) {
                quit = true;
            }
        }

        glClear(GL_COLOR_BUFFER_BIT);

        // 使用纹理进行渲染

        SDL_GL_SwapWindow(window);
    }

    // 清理资源

    SDL_GL_DeleteContext(context);
    SDL_DestroyWindow(window);
    SDL_Quit();

    return 0;
}