2ad8ec50a5
in the case where we fade a 32-bits surface (ie: GL_MODULATE w/ a,a,a,a + blending), we first make a copy of the background into a RGB buffer, then we blend the 32-bits surface as usual (without the alpha component), and finally blend the copy of the background on top with 1-a. This uses a lot of bandwidth, but no CPU time. |
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tools/glgen |