Mesa (master): i915: Add support for gl_FragData[0] for output color.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: 556a47a2621073185be83a0a721a8ba93392bedb
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=556a47a2621073185be83a0a721a8ba93392bedb

Author: Eric Anholt <eric at anholt.net>
Date:   Tue Jul 12 15:31:39 2011 -0700

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

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

---

 src/mesa/drivers/dri/i915/i915_fragprog.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i915/i915_fragprog.c b/src/mesa/drivers/dri/i915/i915_fragprog.c
index b67ebb9..e9e8078 100644
--- a/src/mesa/drivers/dri/i915/i915_fragprog.c
+++ b/src/mesa/drivers/dri/i915/i915_fragprog.c
@@ -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;