Esempi in C++ (Cpp) per mglTextureSubImage2D

Esempio n. 1

File: openglimagehelper.cpp Progetto: dreamsxin/ManaPlus

void OpenGLImageHelper::copySurfaceToImage(const Image *const image,
                                           const int x, const int y,
                                           SDL_Surface *surface) const
{
    if (!surface || !image)
        return;

    SDL_Surface *const oldSurface = surface;
    surface = convertSurface(surface, surface->w, surface->h);
    if (!surface)
        return;

    // +++ probably need combine
    // mglTextureSubImage2D and mglTextureSubImage2DEXT
    if (mglTextureSubImage2D)
    {
        mglTextureSubImage2D(image->mGLImage,
            0,
            x, y,
            surface->w, surface->h,
            GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
    }
    else
    {
        mglTextureSubImage2DEXT(image->mGLImage,
            mTextureType, 0,
            x, y,
            surface->w, surface->h,
            GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
    }

    if (surface != oldSurface)
        MSDL_FreeSurface(surface);
}

Esempio n. 2

File: openglimagehelper.cpp Progetto: nashley/ManaPlus

void OpenGLImageHelper::copySurfaceToImage(const Image *const image,
                                           const int x, const int y,
                                           SDL_Surface *surface) const
{
    if (!surface || !image)
        return;

    SDL_Surface *const oldSurface = surface;
    surface = convertSurface(surface, surface->w, surface->h);

    mglTextureSubImage2D(image->mGLImage,
        mTextureType, 0,
        x, y,
        surface->w, surface->h,
        GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);

    if (surface != oldSurface)
        MSDL_FreeSurface(surface);
}