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freedreno/a4xx: point regid to "red" even for alpha-only rb formats 

Looks like a4xx hw does this in a more standard way and we don't need to
hack around it like we do on a3xx. Fixes GL_ALPHA formats in
fbo-blending-formats, fbo-colormask-formats, and fbo-alphatest-formats.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org
This commit is contained in:
Ilia Mirkin 2015-11-20 18:11:26 -05:00
parent 4fd24caf92
commit ff9450ecd1
1 changed files with 0 additions and 7 deletions
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7
src/gallium/drivers/freedreno/a4xx/fd4_program.c
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@ -245,13 +245,6 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit,
color_regid[7] = ir3_find_output_regid(s[FS].v, FRAG_RESULT_DATA7);
}
/* adjust regids for alpha output formats. there is no alpha render
* format, so it's just treated like red
*/
for (i = 0; i < nr; i++)
if (util_format_is_alpha(pipe_surface_format(bufs[i])))
color_regid[i] += 3;
/* TODO get these dynamically: */
face_regid = s[FS].v->frag_face ? regid(0,0) : regid(63,0);
coord_regid = s[FS].v->frag_coord ? regid(0,0) : regid(63,0);