From: Eric Anholt <eric@anholt.net>
Date: Tue, 12 Jul 2011 22:31:39 +0000 (-0700)
Subject: i915: Add support for gl_FragData[0] for output color.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=556a47a2621073185be83a0a721a8ba93392bedb;p=mesa.git

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
---

diff --git a/src/mesa/drivers/dri/i915/i915_fragprog.c b/src/mesa/drivers/dri/i915/i915_fragprog.c
index b67ebb9a1ec..e9e8078328a 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;