diff options
| author | Tom Stellard <[email protected]> | 2010-07-13 21:25:27 -0700 |
|---|---|---|
| committer | Tom Stellard <[email protected]> | 2010-09-10 18:18:08 -0700 |
| commit | 63432ecfce5415fbf07f1781ec77b5ea3efff599 (patch) | |
| tree | 903818a193704d2053ce79cf0c8a2d43c3cbaa88 /src/mesa/drivers/dri/r300/compiler/r500_fragprog_emit.c | |
| parent | d8a36620089e72d431ae853ec168f193f3376782 (diff) | |
r300/compiler: Enable presubtract sources
The r300 compiler can now emit instructions that select from the presubtract
source. A peephole optimization has been added to convert instructions like:
ADD Temp[0].x, none.1, -Temp[1].x into the INV (1 - src0) presubtract
operation.
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler/r500_fragprog_emit.c')
| -rw-r--r-- | src/mesa/drivers/dri/r300/compiler/r500_fragprog_emit.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/r500_fragprog_emit.c b/src/mesa/drivers/dri/r300/compiler/r500_fragprog_emit.c index 3220349f26c..54cff9169a4 100644 --- a/src/mesa/drivers/dri/r300/compiler/r500_fragprog_emit.c +++ b/src/mesa/drivers/dri/r300/compiler/r500_fragprog_emit.c @@ -260,6 +260,9 @@ static void emit_paired(struct r300_fragment_program_compiler *c, struct rc_pair code->inst[ip].inst0 |= (inst->RGB.WriteMask << 11) | (inst->Alpha.WriteMask << 14); code->inst[ip].inst0 |= (inst->RGB.OutputWriteMask << 15) | (inst->Alpha.OutputWriteMask << 18); + if (inst->Nop) { + code->inst[ip].inst0 |= R500_INST_NOP; + } if (inst->Alpha.DepthWriteMask) { code->inst[ip].inst4 |= R500_ALPHA_W_OMASK; c->code->writes_depth = 1; @@ -275,6 +278,40 @@ static void emit_paired(struct r300_fragment_program_compiler *c, struct rc_pair if (inst->Alpha.Saturate) code->inst[ip].inst0 |= R500_INST_ALPHA_CLAMP; + /* Set the presubtract operation. */ + switch(inst->RGB.Src[RC_PAIR_PRESUB_SRC].Index) { + case RC_PRESUB_BIAS: + code->inst[ip].inst1 |= R500_RGB_SRCP_OP_1_MINUS_2RGB0; + break; + case RC_PRESUB_SUB: + code->inst[ip].inst1 |= R500_RGB_SRCP_OP_RGB1_MINUS_RGB0; + break; + case RC_PRESUB_ADD: + code->inst[ip].inst1 |= R500_RGB_SRCP_OP_RGB1_PLUS_RGB0; + break; + case RC_PRESUB_INV: + code->inst[ip].inst1 |= R500_RGB_SRCP_OP_1_MINUS_RGB0; + break; + default: + break; + } + switch(inst->Alpha.Src[RC_PAIR_PRESUB_SRC].Index) { + case RC_PRESUB_BIAS: + code->inst[ip].inst2 |= R500_ALPHA_SRCP_OP_1_MINUS_2A0; + break; + case RC_PRESUB_SUB: + code->inst[ip].inst2 |= R500_ALPHA_SRCP_OP_A1_MINUS_A0; + break; + case RC_PRESUB_ADD: + code->inst[ip].inst2 |= R500_ALPHA_SRCP_OP_A1_PLUS_A0; + break; + case RC_PRESUB_INV: + code->inst[ip].inst2 |= R500_ALPHA_SRCP_OP_1_MINUS_A0; + break; + default: + break; + } + code->inst[ip].inst1 |= R500_RGB_ADDR0(use_source(code, inst->RGB.Src[0])); code->inst[ip].inst1 |= R500_RGB_ADDR1(use_source(code, inst->RGB.Src[1])); code->inst[ip].inst1 |= R500_RGB_ADDR2(use_source(code, inst->RGB.Src[2])); |