[Mesa-dev] [PATCH 2/5] tgsi/lowering: stop using TGSI_OPCODE_CLAMP
Marek Olšák
maraeo at gmail.com
Thu Feb 16 22:00:41 UTC 2017
From: Marek Olšák <marek.olsak at amd.com>
---
src/gallium/auxiliary/tgsi/tgsi_lowering.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/src/gallium/auxiliary/tgsi/tgsi_lowering.c b/src/gallium/auxiliary/tgsi/tgsi_lowering.c
index bf6cbb3..dbe5a71 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_lowering.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_lowering.c
@@ -565,30 +565,39 @@ transform_lit(struct tgsi_transform_context *tctx,
/* MAX tmpA.xy, src.xy, imm{0.0} */
new_inst = tgsi_default_full_instruction();
new_inst.Instruction.Opcode = TGSI_OPCODE_MAX;
new_inst.Instruction.NumDstRegs = 1;
reg_dst(&new_inst.Dst[0], &ctx->tmp[A].dst, TGSI_WRITEMASK_XY);
new_inst.Instruction.NumSrcRegs = 2;
reg_src(&new_inst.Src[0], src, SWIZ(X, Y, _, _));
reg_src(&new_inst.Src[1], &ctx->imm, SWIZ(X, X, _, _));
tctx->emit_instruction(tctx, &new_inst);
- /* CLAMP tmpA.z, src.w, -imm{128.0}, imm{128.0} */
+ /* MIN tmpA.z, src.w, imm{128.0} */
new_inst = tgsi_default_full_instruction();
- new_inst.Instruction.Opcode = TGSI_OPCODE_CLAMP;
+ new_inst.Instruction.Opcode = TGSI_OPCODE_MIN;
new_inst.Instruction.NumDstRegs = 1;
reg_dst(&new_inst.Dst[0], &ctx->tmp[A].dst, TGSI_WRITEMASK_Z);
- new_inst.Instruction.NumSrcRegs = 3;
+ new_inst.Instruction.NumSrcRegs = 2;
+ reg_src(&new_inst.Src[0], src, SWIZ(_, _, W, _));
+ reg_src(&new_inst.Src[1], &ctx->imm, SWIZ(_, _, Z, _));
+ tctx->emit_instruction(tctx, &new_inst);
+
+ /* MAX tmpA.z, src.w, -imm{128.0} */
+ new_inst = tgsi_default_full_instruction();
+ new_inst.Instruction.Opcode = TGSI_OPCODE_MAX;
+ new_inst.Instruction.NumDstRegs = 1;
+ reg_dst(&new_inst.Dst[0], &ctx->tmp[A].dst, TGSI_WRITEMASK_Z);
+ new_inst.Instruction.NumSrcRegs = 2;
reg_src(&new_inst.Src[0], src, SWIZ(_, _, W, _));
reg_src(&new_inst.Src[1], &ctx->imm, SWIZ(_, _, Z, _));
new_inst.Src[1].Register.Negate = true;
- reg_src(&new_inst.Src[2], &ctx->imm, SWIZ(_, _, Z, _));
tctx->emit_instruction(tctx, &new_inst);
/* LG2 tmpA.y, tmpA.y */
new_inst = tgsi_default_full_instruction();
new_inst.Instruction.Opcode = TGSI_OPCODE_LG2;
new_inst.Instruction.NumDstRegs = 1;
reg_dst(&new_inst.Dst[0], &ctx->tmp[A].dst, TGSI_WRITEMASK_Y);
new_inst.Instruction.NumSrcRegs = 1;
reg_src(&new_inst.Src[0], &ctx->tmp[A].src, SWIZ(Y, _, _, _));
tctx->emit_instruction(tctx, &new_inst);
--
2.7.4
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