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wined3d: Only load the surface for partial updates in wined3d_device_update_surface().

This commit is contained in:
Henri Verbeet 2011-06-16 22:38:25 +02:00 committed by Alexandre Julliard
parent 3a1d151561
commit 45a0e95962
1 changed files with 7 additions and 2 deletions
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7
dlls/wined3d/device.c
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@ -4833,7 +4833,12 @@ HRESULT CDECL wined3d_device_update_surface(struct wined3d_device *device,
checkGLcall("glActiveTextureARB");
LEAVE_GL();
/* Make sure the surface is loaded and up to date */
/* Only load the surface for partial updates. For newly allocated texture
* the texture wouldn't be the current location, and we'd upload zeroes
* just to overwrite them again. */
if (update_w == dst_w && update_h == dst_h)
surface_prepare_texture(dst_surface, gl_info, FALSE);
else
surface_load_location(dst_surface, SFLAG_INTEXTURE, NULL);
surface_bind(dst_surface, gl_info, FALSE);