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Codechange: [OpenGL] Use a pixel buffer object to store the video buffer.

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This commit is contained in:
Michael Lutz
2021-01-16 16:43:16 +01:00
parent 5af0cfd902
commit a990c497b5
4 changed files with 89 additions and 35 deletions
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11
src/video/opengl.h
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@@ -25,7 +25,7 @@ class OpenGLBackend : public ZeroedMemoryAllocator {
private:
static OpenGLBackend *instance; ///< Singleton instance pointer.
void *vid_buffer; ///< Pointer to the memory used for the video driver to draw to.
GLuint vid_pbo; ///< Pixel buffer object storing the memory used for the video driver to draw to.
GLuint vid_texture; ///< Texture handle for the video buffer texture.
GLuint vao_quad; ///< Vertex array object storing the rendering state for the fullscreen quad.
GLuint vbo_quad; ///< Vertex buffer with a fullscreen quad.
@@ -45,13 +45,10 @@ public:
static void Destroy();
bool Resize(int w, int h, bool force = false);
void Paint(Rect update_rect);
void Paint();
/**
* Get a pointer to the memory for the video driver to draw to.
* @return Pointer to draw on.
*/
void *GetVideoBuffer() { return this->vid_buffer; }
void *GetVideoBuffer();
void ReleaseVideoBuffer(const Rect &update_rect);
};
#endif /* VIDEO_OPENGL_H */