diff options
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 | 23 |
1 files changed, 21 insertions, 2 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 4e84eefd65..b6dfe28def 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; |