Function main

examples/main_image.cpp:352–836

// ── Main ─────────────────────────────────────────────────────────────────────

int main(int argc, char** argv) {
    app_state app;
    app.params.n_threads = 4;
    app.params.use_gpu   = true;

    const char* image_path = nullptr;

    // Parse args
    for (int i = 1; i < argc; ++i) {
        if (strcmp(argv[i], "--model") == 0 && i+1 < argc) {
            app.params.model_path = argv[++i];
        } else if (strcmp(argv[i], "--image") == 0 && i+1 < argc) {
            image_path = argv[++i];
        } else if (strcmp(argv[i], "--threads") == 0 && i+1 < argc) {
            app.params.n_threads = atoi(argv[++i]);
        } else if (strcmp(argv[i], "--no-gpu") == 0) {
            app.params.use_gpu = false;
        } else if (strcmp(argv[i], "--help") == 0) {
            fprintf(stderr,
                "Usage: %s --model <path.ggml> [--image <path>]\n"
                "          [--threads N] [--no-gpu]\n", argv[0]);
            return 0;
        }
    }

    if (app.params.model_path.empty()) {
        fprintf(stderr, "Error: --model is required.\n");
        return 1;
    }

    fprintf(stderr, "Using %d threads\n", app.params.n_threads);

    // ── Init SDL2 + OpenGL ───────────────────────────────────────────────────

    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
        fprintf(stderr, "SDL_Init failed: %s\n", SDL_GetError());
        return 1;
    }

#ifdef __APPLE__
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
    const char* glsl_version = "#version 150";
#else
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
    const char* glsl_version = "#version 130";
#endif

    std::string init_title = basename_of(app.params.model_path);
    if (image_path) {
        init_title = basename_of(image_path) + " \xe2\x80\x94 " + init_title;
    }

    SDL_Window* window = SDL_CreateWindow(
        init_title.c_str(),