[Mesa-dev] [PATCH 2/2] meta: Handle bitmaps with alpha test enabled.

Francisco Jerez currojerez at riseup.net
Mon Nov 1 16:34:02 PDT 2010


Brian Paul <brianp at vmware.com> writes:

> Unless a fragment shader is active (very rare), all the fragments
> emitted for a bitmap should have the same RGBA color.  So the only two
> possible outcomes of applying the alpha test to glBitmap is either the
> bitmap is drawn normally (as if alpha test is disabled) or nothing is
> drawn at all.  I think we could test for this and either no-op the
> glBitmap or draw the bitmap with the current code as-is.
>
> What do you think?
>
Yeah, that makes sense, fixed patch follows. Thank you for the review.

> -Brian

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