From f3b9fff3c362146da2e8e2c3eefa812ad166491c Mon Sep 17 00:00:00 2001 From: Samuel Pitoiset Date: Tue, 5 Jul 2016 00:08:03 +0200 Subject: [PATCH] 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 Reviewed-by: Ilia Mirkin Cc: "11.2 12.0" --- src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp | 6 ++++-- 1 file 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 ce0f99c..ec349ec 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 -- 2.7.4