Mesa (master): nvc0/ir: fix lowering of textureGrad
Christoph Bumiller
chrisbmr at kemper.freedesktop.org
Sun May 6 20:04:16 UTC 2012
Module: Mesa
Branch: master
Commit: 38a20281fcc2ed244aea0aaa268035533f48a183
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=38a20281fcc2ed244aea0aaa268035533f48a183
Author: Christoph Bumiller <e0425955 at student.tuwien.ac.at>
Date: Sat May 5 13:30:03 2012 +0200
nvc0/ir: fix lowering of textureGrad
---
src/gallium/drivers/nv50/codegen/nv50_ir_ra.cpp | 8 ++++----
.../drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp | 2 +-
.../drivers/nvc0/codegen/nv50_ir_lowering_nvc0.cpp | 15 ++++++++-------
3 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/src/gallium/drivers/nv50/codegen/nv50_ir_ra.cpp b/src/gallium/drivers/nv50/codegen/nv50_ir_ra.cpp
index 77edaa6..726331e 100644
--- a/src/gallium/drivers/nv50/codegen/nv50_ir_ra.cpp
+++ b/src/gallium/drivers/nv50/codegen/nv50_ir_ra.cpp
@@ -1819,8 +1819,8 @@ RegAlloc::InsertConstraintsPass::texConstraintNVE0(TexInstruction *tex)
int n = tex->srcCount(0xff, true);
if (n > 4) {
condenseSrcs(tex, 0, 3);
- if (n > 5)
- condenseSrcs(tex, 4, n - 1);
+ if (n > 5) // NOTE: first call modified positions already
+ condenseSrcs(tex, 4 - (4 - 1), n - 1 - (4 - 1));
} else
if (n > 1) {
condenseSrcs(tex, 0, n - 1);
@@ -1850,8 +1850,8 @@ RegAlloc::InsertConstraintsPass::texConstraintNVC0(TexInstruction *tex)
if (s > 1)
condenseSrcs(tex, 0, s - 1);
- if (n > 1)
- condenseSrcs(tex, s, s + (n - 1));
+ if (n > 1) // NOTE: first call modified positions already
+ condenseSrcs(tex, 1, n);
condenseDefs(tex);
}
diff --git a/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp b/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp
index 2ca4979..fbd1aa5 100644
--- a/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp
+++ b/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp
@@ -1020,7 +1020,7 @@ CodeEmitterNVC0::emitTEX(const TexInstruction *i)
code[1] |= 0x02000000;
}
- if (i->tex.derivAll)
+ if (i->op != OP_TXD && i->tex.derivAll)
code[1] |= 1 << 13;
defId(i->def(0), 14);
diff --git a/src/gallium/drivers/nvc0/codegen/nv50_ir_lowering_nvc0.cpp b/src/gallium/drivers/nvc0/codegen/nv50_ir_lowering_nvc0.cpp
index 02ae9fd..900e998 100644
--- a/src/gallium/drivers/nvc0/codegen/nv50_ir_lowering_nvc0.cpp
+++ b/src/gallium/drivers/nvc0/codegen/nv50_ir_lowering_nvc0.cpp
@@ -749,21 +749,22 @@ bool
NVC0LoweringPass::handleTXD(TexInstruction *txd)
{
int dim = txd->tex.target.getDim();
- int arg = txd->tex.target.getDim() + txd->tex.target.isArray();
+ int arg = txd->tex.target.getArgCount();
handleTEX(txd);
- while (txd->src(arg).exists())
+ while (txd->srcExists(arg))
++arg;
txd->tex.derivAll = true;
- if (dim > 2 || txd->tex.target.isShadow())
+ if (dim > 2 ||
+ txd->tex.target.isCube() ||
+ arg > 4 ||
+ txd->tex.target.isShadow())
return handleManualTXD(txd);
- assert(arg <= 4); // at most s/t/array, x, y, offset
-
for (int c = 0; c < dim; ++c) {
- txd->src(arg + c * 2 + 0).set(txd->dPdx[c]);
- txd->src(arg + c * 2 + 1).set(txd->dPdy[c]);
+ txd->setSrc(arg + c * 2 + 0, txd->dPdx[c]);
+ txd->setSrc(arg + c * 2 + 1, txd->dPdy[c]);
txd->dPdx[c].set(NULL);
txd->dPdy[c].set(NULL);
}
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