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i915: Add support for gl_FragData[0] for output color.

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We advertised ARB_draw_buffers, but either fell back to software when
using this output, or assertion failed.  Fixes glsl-fs-fragdata-1, and
failures in some webgl conformance tests.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=39024
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=34906
(cherry picked from commit 556a47a262)
This commit is contained in:
Eric Anholt 2011-07-12 15:31:39 -07:00
parent 9279c1e556
commit a20a950829
1 changed files with 1 additions and 0 deletions
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src/mesa/drivers/dri/i915/i915_fragprog.c
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@ -210,6 +210,7 @@ get_result_vector(struct i915_fragment_program *p,
case PROGRAM_OUTPUT:
switch (inst->DstReg.Index) {
case FRAG_RESULT_COLOR:
case FRAG_RESULT_DATA0:
return UREG(REG_TYPE_OC, 0);
case FRAG_RESULT_DEPTH:
p->depth_written = 1;