The shadow comparitor needs to be loaded into the Z component of the
last DWord.
Fixes es3conform's shadow_execution_vert and oglconform's
shadow-grad advanced.textureGrad.1D tests on Haswell.
NOTE: This is a candidate for stable branches.
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 1863fe5..f5b467d 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -2194,7 +2194,7 @@ vec4_visitor::visit(ir_texture *ir)
emit(MOV(dst_reg(MRF, param_base, ir->coordinate->type, zero_mask),
src_reg(0)));
/* Load the shadow comparitor */
- if (ir->shadow_comparitor) {
+ if (ir->shadow_comparitor && ir->op != ir_txd) {
emit(MOV(dst_reg(MRF, param_base + 1, ir->shadow_comparitor->type,
WRITEMASK_X),
shadow_comparitor));
@@ -2231,12 +2231,18 @@ vec4_visitor::visit(ir_texture *ir)
emit(MOV(dst_reg(MRF, param_base + 1, type, WRITEMASK_YW), dPdy));
inst->mlen++;
- if (ir->type->vector_elements == 3) {
+ if (ir->type->vector_elements == 3 || ir->shadow_comparitor) {
dPdx.swizzle = BRW_SWIZZLE_ZZZZ;
dPdy.swizzle = BRW_SWIZZLE_ZZZZ;
emit(MOV(dst_reg(MRF, param_base + 2, type, WRITEMASK_X), dPdx));
emit(MOV(dst_reg(MRF, param_base + 2, type, WRITEMASK_Y), dPdy));
inst->mlen++;
+
+ if (ir->shadow_comparitor) {
+ emit(MOV(dst_reg(MRF, param_base + 2,
+ ir->shadow_comparitor->type, WRITEMASK_Z),
+ shadow_comparitor));
+ }
}
} else /* intel->gen == 4 */ {
emit(MOV(dst_reg(MRF, param_base + 1, type, WRITEMASK_XYZ), dPdx));
--
1.8.1.1
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