diff options
| author | Nicolai Haehnle <nhaehnle@gmail.com> | 2008-07-05 22:35:46 +0200 |
|---|---|---|
| committer | Nicolai Haehnle <nhaehnle@gmail.com> | 2008-07-06 10:00:35 +0200 |
| commit | 03abd021f2fa1d043682c9f1bbb1c080fba6b033 (patch) | |
| tree | 081871d72436c40ecdbf3d0e65f25a2f1c768813 /src/mesa/drivers/dri/r300/radeon_program_alu.c | |
| parent | 62bccd6df0c963a14e801bcac95dc8046b978a7f (diff) | |
r300: Translate fragment program LRP in radeon_program_alu.c
Diffstat (limited to 'src/mesa/drivers/dri/r300/radeon_program_alu.c')
| -rw-r--r-- | src/mesa/drivers/dri/r300/radeon_program_alu.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/r300/radeon_program_alu.c b/src/mesa/drivers/dri/r300/radeon_program_alu.c index 85ea810523..483dfa2cdc 100644 --- a/src/mesa/drivers/dri/r300/radeon_program_alu.c +++ b/src/mesa/drivers/dri/r300/radeon_program_alu.c @@ -296,6 +296,19 @@ static void transform_LIT(struct radeon_transform_context* t, emit1(t->Program, OPCODE_MOV, inst->DstReg, srctemp); } +static void transform_LRP(struct radeon_transform_context* t, + struct prog_instruction* inst) +{ + int tempreg = radeonFindFreeTemporary(t); + + emit2(t->Program, OPCODE_ADD, + dstreg(PROGRAM_TEMPORARY, tempreg), + inst->SrcReg[1], negate(inst->SrcReg[2])); + emit3(t->Program, OPCODE_MAD, + inst->DstReg, + inst->SrcReg[0], srcreg(PROGRAM_TEMPORARY, tempreg), inst->SrcReg[2]); +} + static void transform_POW(struct radeon_transform_context* t, struct prog_instruction* inst) { @@ -360,7 +373,7 @@ static void transform_XPD(struct radeon_transform_context* t, * no userData necessary. * * Eliminates the following ALU instructions: - * ABS, DPH, FLR, LIT, POW, SGE, SLT, SUB, SWZ, XPD + * ABS, DPH, FLR, LIT, LRP, POW, SGE, SLT, SUB, SWZ, XPD * using: * MOV, ADD, MUL, MAD, FRC, DP3, LG2, EX2, CMP * @@ -375,6 +388,7 @@ GLboolean radeonTransformALU(struct radeon_transform_context* t, case OPCODE_DPH: transform_DPH(t, inst); return GL_TRUE; case OPCODE_FLR: transform_FLR(t, inst); return GL_TRUE; case OPCODE_LIT: transform_LIT(t, inst); return GL_TRUE; + case OPCODE_LRP: transform_LRP(t, inst); return GL_TRUE; case OPCODE_POW: transform_POW(t, inst); return GL_TRUE; case OPCODE_SGE: transform_SGE(t, inst); return GL_TRUE; case OPCODE_SLT: transform_SLT(t, inst); return GL_TRUE; |