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Diffstat (limited to 'src/gallium/auxiliary/tgsi/tgsi_lowering.c')
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_lowering.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_lowering.c b/src/gallium/auxiliary/tgsi/tgsi_lowering.c
index b0a28f27107..bf6cbb361a9 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_lowering.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_lowering.c
@@ -468,12 +468,13 @@ transform_frc(struct tgsi_transform_context *tctx,
/* SUB dst, src, tmpA */
new_inst = tgsi_default_full_instruction();
- new_inst.Instruction.Opcode = TGSI_OPCODE_SUB;
+ new_inst.Instruction.Opcode = TGSI_OPCODE_ADD;
new_inst.Instruction.NumDstRegs = 1;
reg_dst(&new_inst.Dst[0], dst, TGSI_WRITEMASK_XYZW);
new_inst.Instruction.NumSrcRegs = 2;
reg_src(&new_inst.Src[0], src, SWIZ(X, Y, Z, W));
reg_src(&new_inst.Src[1], &ctx->tmp[A].src, SWIZ(X, Y, Z, W));
+ new_inst.Src[1].Register.Negate = 1;
tctx->emit_instruction(tctx, &new_inst);
}
}
@@ -689,12 +690,13 @@ transform_exp(struct tgsi_transform_context *tctx,
/* SUB tmpA.x, src.x, tmpA.x */
new_inst = tgsi_default_full_instruction();
- new_inst.Instruction.Opcode = TGSI_OPCODE_SUB;
+ new_inst.Instruction.Opcode = TGSI_OPCODE_ADD;
new_inst.Instruction.NumDstRegs = 1;
reg_dst(&new_inst.Dst[0], &ctx->tmp[A].dst, TGSI_WRITEMASK_X);
new_inst.Instruction.NumSrcRegs = 2;
reg_src(&new_inst.Src[0], src, SWIZ(X, _, _, _));
reg_src(&new_inst.Src[1], &ctx->tmp[A].src, SWIZ(X, _, _, _));
+ new_inst.Src[1].Register.Negate = 1;
tctx->emit_instruction(tctx, &new_inst);
} else {
/* FLR tmpA.x, src.x */
@@ -722,12 +724,13 @@ transform_exp(struct tgsi_transform_context *tctx,
if (dst->Register.WriteMask & TGSI_WRITEMASK_Y) {
/* SUB dst.y, src.x, tmpA.x */
new_inst = tgsi_default_full_instruction();
- new_inst.Instruction.Opcode = TGSI_OPCODE_SUB;
+ new_inst.Instruction.Opcode = TGSI_OPCODE_ADD;
new_inst.Instruction.NumDstRegs = 1;
reg_dst(&new_inst.Dst[0], dst, TGSI_WRITEMASK_Y);
new_inst.Instruction.NumSrcRegs = 2;
reg_src(&new_inst.Src[0], src, SWIZ(_, X, _, _));
reg_src(&new_inst.Src[1], &ctx->tmp[A].src, SWIZ(_, X, _, _));
+ new_inst.Src[1].Register.Negate = 1;
tctx->emit_instruction(tctx, &new_inst);
}
@@ -822,12 +825,13 @@ transform_log(struct tgsi_transform_context *tctx,
/* SUB tmpA.y, tmpA.x, tmpA.y */
new_inst = tgsi_default_full_instruction();
- new_inst.Instruction.Opcode = TGSI_OPCODE_SUB;
+ new_inst.Instruction.Opcode = TGSI_OPCODE_ADD;
new_inst.Instruction.NumDstRegs = 1;
reg_dst(&new_inst.Dst[0], &ctx->tmp[A].dst, TGSI_WRITEMASK_Y);
new_inst.Instruction.NumSrcRegs = 2;
reg_src(&new_inst.Src[0], &ctx->tmp[A].src, SWIZ(_, X, _, _));
reg_src(&new_inst.Src[1], &ctx->tmp[A].src, SWIZ(_, Y, _, _));
+ new_inst.Src[1].Register.Negate = 1;
tctx->emit_instruction(tctx, &new_inst);
} else {
/* FLR tmpA.y, tmpA.x */
@@ -1072,15 +1076,14 @@ transform_flr_ceil(struct tgsi_transform_context *tctx,
/* FLR: SUB dst, src, tmpA CEIL: ADD dst, src, tmpA */
new_inst = tgsi_default_full_instruction();
- if (opcode == TGSI_OPCODE_CEIL)
- new_inst.Instruction.Opcode = TGSI_OPCODE_ADD;
- else
- new_inst.Instruction.Opcode = TGSI_OPCODE_SUB;
+ new_inst.Instruction.Opcode = TGSI_OPCODE_ADD;
new_inst.Instruction.NumDstRegs = 1;
reg_dst(&new_inst.Dst[0], dst, TGSI_WRITEMASK_XYZW);
new_inst.Instruction.NumSrcRegs = 2;
reg_src(&new_inst.Src[0], src0, SWIZ(X, Y, Z, W));
reg_src(&new_inst.Src[1], &ctx->tmp[A].src, SWIZ(X, Y, Z, W));
+ if (opcode == TGSI_OPCODE_FLR)
+ new_inst.Src[1].Register.Negate = 1;
tctx->emit_instruction(tctx, &new_inst);
}
}
@@ -1124,7 +1127,7 @@ transform_trunc(struct tgsi_transform_context *tctx,
tctx->emit_instruction(tctx, &new_inst);
new_inst = tgsi_default_full_instruction();
- new_inst.Instruction.Opcode = TGSI_OPCODE_SUB;
+ new_inst.Instruction.Opcode = TGSI_OPCODE_ADD;
new_inst.Instruction.NumDstRegs = 1;
reg_dst(&new_inst.Dst[0], &ctx->tmp[A].dst, TGSI_WRITEMASK_XYZW);
new_inst.Instruction.NumSrcRegs = 2;
@@ -1132,6 +1135,7 @@ transform_trunc(struct tgsi_transform_context *tctx,
new_inst.Src[0].Register.Absolute = true;
new_inst.Src[0].Register.Negate = false;
reg_src(&new_inst.Src[1], &ctx->tmp[A].src, SWIZ(X, Y, Z, W));
+ new_inst.Src[1].Register.Negate = 1;
tctx->emit_instruction(tctx, &new_inst);
} else {
new_inst = tgsi_default_full_instruction();