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Let userland retain the window backing store while drawing into it.
To start painting, call: gui$get_window_backing_store() Then finish up with: gui$release_window_backing_store() Process will retain the underlying GraphicsBitmap behind the scenes. This fixes racing between the WindowServer and GUI clients. This patch also adds a WSWindowLocker that is exactly what it sounds like.
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22 changed files with 244 additions and 102 deletions
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@ -34,6 +34,7 @@ struct GUI_WindowParameters {
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};
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struct GUI_WindowBackingStoreInfo {
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void* backing_store_id;
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GUI_Size size;
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size_t bpp;
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size_t pitch;
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