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st/mesa: in ATI fs don't assume TEMP0=REG0

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The temporaries are allocated dynamically.

Signed-off-by: Miklós Máté <mtmkls@gmail.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Miklós Máté
2016-08-08 00:48:31 +02:00
committed by Marek Olšák
parent 9a4d5db4d2
commit 88c2fc6b2d
1 changed files with 3 additions and 2 deletions
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src/mesa/state_tracker/st_atifs_to_tgsi.c
+3 -2
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@@ -691,6 +691,7 @@ transform_inst:
struct tgsi_full_instruction inst;
unsigned i;
int fogc_index = -1;
int reg0_index = current_inst->Src[0].Register.Index;
/* find FOGC input */
for (i = 0; i < ctx->info.num_inputs; i++) {
@@ -804,11 +805,11 @@ transform_inst:
inst.Instruction.Opcode = TGSI_OPCODE_LRP;
inst.Instruction.NumDstRegs = 1;
inst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
inst.Dst[0].Register.Index = 0;
inst.Dst[0].Register.Index = reg0_index;
inst.Dst[0].Register.WriteMask = TGSI_WRITEMASK_XYZW;
inst.Instruction.NumSrcRegs = 3;
SET_SRC(&inst, 0, TGSI_FILE_TEMPORARY, ctx->fog_factor_temp, X, X, X, Y);
SET_SRC(&inst, 1, TGSI_FILE_TEMPORARY, 0, X, Y, Z, W);
SET_SRC(&inst, 1, TGSI_FILE_TEMPORARY, reg0_index, X, Y, Z, W);
SET_SRC(&inst, 2, TGSI_FILE_CONSTANT, MAX_NUM_FRAGMENT_CONSTANTS_ATI + 1, X, Y, Z, W);
tctx->emit_instruction(tctx, &inst);
}