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authorSamuel Pitoiset <[email protected]>2016-07-05 00:08:03 +0200
committerSamuel Pitoiset <[email protected]>2016-07-05 01:44:12 +0200
commitf3b9fff3c362146da2e8e2c3eefa812ad166491c (patch)
tree236d7939e851773e635cb8ef721a8a71272a4c97 /src/gallium/drivers
parentcb828b7b18d83cb2ea3dcaed54c1678616c56fc8 (diff)
nvc0/ir: reset the base offset for indirect images accesses
In presence of an indirect image access, the base offset should be zeroed because the stride will be computed twice. This is a pretty rare situation but it can happen when tex.r > 0. Signed-off-by: Samuel Pitoiset <[email protected]> Reviewed-by: Ilia Mirkin <[email protected]> Cc: "11.2 12.0" <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
index ce0f99cc25d..ec349ecbbff 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
@@ -1685,7 +1685,7 @@ NVC0LoweringPass::processSurfaceCoordsNVE4(TexInstruction *su)
const int idx = su->tex.r;
const int dim = su->tex.target.getDim();
const int arg = dim + (su->tex.target.isArray() || su->tex.target.isCube());
- const uint16_t base = idx * NVE4_SU_INFO__STRIDE;
+ uint16_t base = idx * NVE4_SU_INFO__STRIDE;
int c;
Value *zero = bld.mkImm(0);
Value *p1 = NULL;
@@ -1712,6 +1712,7 @@ NVC0LoweringPass::processSurfaceCoordsNVE4(TexInstruction *su)
}
ind = bld.mkOp2v(OP_AND, TYPE_U32, bld.getSSA(), ind, bld.mkImm(7));
ind = bld.mkOp2v(OP_SHL, TYPE_U32, bld.getSSA(), ind, bld.mkImm(6));
+ base = 0;
}
// calculate clamped coordinates
@@ -2049,7 +2050,7 @@ NVC0LoweringPass::processSurfaceCoordsNVC0(TexInstruction *su)
const int idx = su->tex.r;
const int dim = su->tex.target.getDim();
const int arg = dim + (su->tex.target.isArray() || su->tex.target.isCube());
- const uint16_t base = idx * NVE4_SU_INFO__STRIDE;
+ uint16_t base = idx * NVE4_SU_INFO__STRIDE;
int c;
Value *zero = bld.mkImm(0);
Value *src[3];
@@ -2068,6 +2069,7 @@ NVC0LoweringPass::processSurfaceCoordsNVC0(TexInstruction *su)
}
ind = bld.mkOp2v(OP_AND, TYPE_U32, bld.getSSA(), ind, bld.mkImm(7));
ind = bld.mkOp2v(OP_SHL, TYPE_U32, bld.getSSA(), ind, bld.mkImm(6));
+ base = 0;
}
// get surface coordinates