Mesa (master): i915: Texture instructions use r/t/oC/ oD register as texture coordinate.

[Haihao Xiang]

Module: Mesa
Branch: master
Commit: c238098bbcfb644ea01b33d3274b949d84822512
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c238098bbcfb644ea01b33d3274b949d84822512

Author: Xiang, Haihao <haihao.xiang at intel.com>
Date:   Mon Oct 13 13:04:04 2008 +0800

i915: Texture instructions use r/t/oC/oD register as texture coordinate.

Fix http://bugs.freedesktop.org/show_bug.cgi?id=16287.

---

 src/mesa/drivers/dri/i915/i915_program.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i915/i915_program.c b/src/mesa/drivers/dri/i915/i915_program.c
index 350da5e..e87700f 100644
--- a/src/mesa/drivers/dri/i915/i915_program.c
+++ b/src/mesa/drivers/dri/i915/i915_program.c
@@ -245,6 +245,19 @@ GLuint i915_emit_texld( struct i915_fragment_program *p,
        */
       assert(GET_UREG_TYPE(coord) != REG_TYPE_U);
 
+      if ((GET_UREG_TYPE(coord) != REG_TYPE_R) &&
+          (GET_UREG_TYPE(coord) != REG_TYPE_OC) &&
+          (GET_UREG_TYPE(coord) != REG_TYPE_OD) &&
+          (GET_UREG_TYPE(coord) != REG_TYPE_T)) {
+          GLuint  tmpCoord = get_free_rreg(p, live_regs);
+          
+          if (tmpCoord == UREG_BAD) 
+              return 0;
+
+          i915_emit_arith(p, A0_MOV, tmpCoord, A0_DEST_CHANNEL_ALL, 0, coord, 0, 0);
+          coord = tmpCoord;
+      }
+
       /* Output register being oC or oD defines a phase boundary */
       if (GET_UREG_TYPE(dest) == REG_TYPE_OC ||
 	  GET_UREG_TYPE(dest) == REG_TYPE_OD)