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i965: Fix bug in the old FS backend's projtex() calculation.

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In the old backend, we looked at any FS attribute's proj_attrib_mask bits, not
just texcoords.  Now that we have _mesa_vert_result_to_frag_attrib(), we can
fill in the other FS inputs with correct proj_attrib_mask info.

NOTE: This is a candidate for stable branches.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=46644
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Eric Anholt 2012-08-13 18:08:56 -07:00
parent 57295009e8
commit 59d247c829
1 changed files with 1 additions and 3 deletions
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4
src/mesa/drivers/dri/i965/brw_vs_constval.c
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@ -143,14 +143,12 @@ static void calc_sizes( struct tracker *t )
/* Examine vertex program output sizes to set the size_masks[] info
* which describes the fragment program input sizes.
*/
for (vertRes = VERT_RESULT_TEX0; vertRes < VERT_RESULT_MAX; vertRes++) {
for (vertRes = 0; vertRes < VERT_RESULT_MAX; vertRes++) {
/* map vertex program output index to fragment program input index */
GLint fragAttrib = _mesa_vert_result_to_frag_attrib(vertRes);
if (fragAttrib < 0)
continue;
assert(fragAttrib >= FRAG_ATTRIB_TEX0);
assert(fragAttrib <= FRAG_ATTRIB_MAX);
switch (get_output_size(t, vertRes)) {
case 4: t->size_masks[4-1] |= 1 << fragAttrib;