diff options
| author | Corbin Simpson <[email protected]> | 2010-03-30 10:43:51 -0700 |
|---|---|---|
| committer | Corbin Simpson <[email protected]> | 2010-03-30 10:43:51 -0700 |
| commit | 3623202834e9ca1073a4aa66f72f584812fb14df (patch) | |
| tree | f7fc1ec0da2abf63a5d8d9dbbc4825a4d8566822 /src/mesa/drivers/dri/r300/compiler | |
| parent | dc886ba1391d7d890bd1f5532bc14553e883a418 (diff) | |
r300/compiler: Unbreak DDX/DDY.
Fixes progs/glsl/deriv.
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler')
3 files changed, 23 insertions, 9 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 4e84eefd658..b6dfe28def9 100644 --- a/src/mesa/drivers/dri/r300/compiler/r500_fragprog_emit.c +++ b/src/mesa/drivers/dri/r300/compiler/r500_fragprog_emit.c @@ -190,6 +190,17 @@ static unsigned int use_source(struct r500_fragment_program_code* code, struct r return 0; } +/** + * NOP the specified instruction if it is not a texture lookup. + */ +static void alu_nop(struct r300_fragment_program_compiler *c, int ip) +{ + PROG_CODE; + + if ((code->inst[ip].inst0 & 0x3) != R500_INST_TYPE_TEX) { + code->inst[ip].inst0 |= R500_INST_NOP; + } +} /** * Emit a paired ALU instruction. @@ -205,6 +216,14 @@ static void emit_paired(struct r300_fragment_program_compiler *c, struct rc_pair int ip = ++code->inst_end; + /* Quirk: MDH/MDV (DDX/DDY) need a NOP on previous non-TEX instructions. */ + if (inst->RGB.Opcode == RC_OPCODE_DDX || inst->Alpha.Opcode == RC_OPCODE_DDX || + inst->RGB.Opcode == RC_OPCODE_DDY || inst->Alpha.Opcode == RC_OPCODE_DDY) { + if (ip > 0) { + alu_nop(c, ip - 1); + } + } + code->inst[ip].inst5 = translate_rgb_op(c, inst->RGB.Opcode); code->inst[ip].inst4 = translate_alpha_op(c, inst->Alpha.Opcode); @@ -252,8 +271,8 @@ static void emit_paired(struct r300_fragment_program_compiler *c, struct rc_pair code->inst[ip].inst4 |= translate_arg_alpha(inst, 1) << R500_ALPHA_SEL_B_SHIFT; code->inst[ip].inst5 |= translate_arg_alpha(inst, 2) << R500_ALU_RGBA_ALPHA_SEL_C_SHIFT; - code->inst[ip].inst3 |= R500_ALU_RGB_TARGET(inst->RGB.Target); - code->inst[ip].inst4 |= R500_ALPHA_TARGET(inst->Alpha.Target); + code->inst[ip].inst3 |= R500_ALU_RGB_TARGET(inst->RGB.Target); + code->inst[ip].inst4 |= R500_ALPHA_TARGET(inst->Alpha.Target); if (inst->WriteALUResult) { code->inst[ip].inst3 |= R500_ALU_RGB_WMASK; diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_opcodes.c b/src/mesa/drivers/dri/r300/compiler/radeon_opcodes.c index c1c0181fac1..9d289fce342 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_opcodes.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_opcodes.c @@ -75,14 +75,14 @@ struct rc_opcode_info rc_opcodes[MAX_RC_OPCODE] = { { .Opcode = RC_OPCODE_DDX, .Name = "DDX", - .NumSrcRegs = 1, + .NumSrcRegs = 2, .HasDstReg = 1, .IsComponentwise = 1 }, { .Opcode = RC_OPCODE_DDY, .Name = "DDY", - .NumSrcRegs = 1, + .NumSrcRegs = 2, .HasDstReg = 1, .IsComponentwise = 1 }, diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_pair_translate.c b/src/mesa/drivers/dri/r300/compiler/radeon_pair_translate.c index fff5b0c2173..3a26e7daaf9 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_pair_translate.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_pair_translate.c @@ -159,11 +159,6 @@ static void set_pair_instruction(struct r300_fragment_program_compiler *c, int nargs = opcode->NumSrcRegs; int i; - /* Special case for DDX/DDY (MDH/MDV). */ - if (inst->Opcode == RC_OPCODE_DDX || inst->Opcode == RC_OPCODE_DDY) { - nargs++; - } - for(i = 0; i < opcode->NumSrcRegs; ++i) { int source; if (needrgb && !istranscendent) { |