Function SDL_UpdateYUVTexture

deps/SDL2/src/render/SDL_render.c:1612–1677

#endif /* SDL_HAVE_YUV */

int SDL_UpdateYUVTexture(SDL_Texture * texture, const SDL_Rect * rect,
                         const Uint8 *Yplane, int Ypitch,
                         const Uint8 *Uplane, int Upitch,
                         const Uint8 *Vplane, int Vpitch)
{
#if SDL_HAVE_YUV
    SDL_Renderer *renderer;
    SDL_Rect full_rect;

    CHECK_TEXTURE_MAGIC(texture, -1);

    if (!Yplane) {
        return SDL_InvalidParamError("Yplane");
    }
    if (!Ypitch) {
        return SDL_InvalidParamError("Ypitch");
    }
    if (!Uplane) {
        return SDL_InvalidParamError("Uplane");
    }
    if (!Upitch) {
        return SDL_InvalidParamError("Upitch");
    }
    if (!Vplane) {
        return SDL_InvalidParamError("Vplane");
    }
    if (!Vpitch) {
        return SDL_InvalidParamError("Vpitch");
    }

    if (texture->format != SDL_PIXELFORMAT_YV12 &&
        texture->format != SDL_PIXELFORMAT_IYUV) {
        return SDL_SetError("Texture format must by YV12 or IYUV");
    }

    if (!rect) {
        full_rect.x = 0;
        full_rect.y = 0;
        full_rect.w = texture->w;
        full_rect.h = texture->h;
        rect = &full_rect;
    }

    if (!rect->w || !rect->h) {
        return 0;  /* nothing to do. */
    }

    if (texture->yuv) {
        return SDL_UpdateTextureYUVPlanar(texture, rect, Yplane, Ypitch, Uplane, Upitch, Vplane, Vpitch);
    } else {
        SDL_assert(!texture->native);
        renderer = texture->renderer;
        SDL_assert(renderer->UpdateTextureYUV);
        if (renderer->UpdateTextureYUV) {
            if (FlushRenderCommandsIfTextureNeeded(texture) < 0) {
                return -1;
            }
            return renderer->UpdateTextureYUV(renderer, texture, rect, Yplane, Ypitch, Uplane, Upitch, Vplane, Vpitch);