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authorEric Anholt <[email protected]>2010-08-17 15:51:34 -0700
committerEric Anholt <[email protected]>2010-08-17 16:39:18 -0700
commite43b250fc076aea9e4b5319fdf409e95b28ac8fc (patch)
tree0696fbe854fd03c21fe5ffbac9471efa0a4424ea
parent66690864efb9ab1077f87744e1afec3231f244f6 (diff)
i915: Add support for reading output regs in the FS.
Fixes glsl-unused-varying and many others, since we produce an output reg read any time gl_FragColor is written inside an if statement.
-rw-r--r--src/mesa/drivers/dri/i915/i915_fragprog.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_fragprog.c b/src/mesa/drivers/dri/i915/i915_fragprog.c
index 2ba0d2c591e..3101bd17001 100644
--- a/src/mesa/drivers/dri/i915/i915_fragprog.c
+++ b/src/mesa/drivers/dri/i915/i915_fragprog.c
@@ -143,6 +143,20 @@ src_vector(struct i915_fragment_program *p,
}
break;
+ case PROGRAM_OUTPUT:
+ switch (source->Index) {
+ case FRAG_RESULT_COLOR:
+ src = UREG(REG_TYPE_OC, 0);
+ break;
+ case FRAG_RESULT_DEPTH:
+ src = UREG(REG_TYPE_OD, 0);
+ break;
+ default:
+ i915_program_error(p, "Bad source->Index: %d", source->Index);
+ return 0;
+ }
+ break;
+
/* Various paramters and env values. All emitted to
* hardware as program constants.
*/