diff options
| author | Marek Olšák <[email protected]> | 2010-05-07 19:25:11 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2010-05-08 23:03:44 +0200 |
| commit | c637f38e70881b2321db12f5f5fea9b46057ff6a (patch) | |
| tree | 18c54827bc7e0ee972c39e48f16c21714b87518b /src/mesa/drivers/dri | |
| parent | da180a8d34a3d17345d71b215a7d20f24fe4b078 (diff) | |
r300/compiler: fix LIT instruction case 0^0 = 1
Diffstat (limited to 'src/mesa/drivers/dri')
| -rw-r--r-- | src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c b/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c index 05b874ba7cf..d806309552e 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c @@ -556,6 +556,29 @@ static void transform_r300_vertex_CMP(struct radeon_compiler* c, rc_remove_instruction(inst); } +static void transform_r300_vertex_fix_LIT(struct radeon_compiler* c, + struct rc_instruction* inst) +{ + int tempreg = rc_find_free_temporary(c); + unsigned constant_swizzle; + int constant = rc_constants_add_immediate_scalar(&c->Program.Constants, + 0.0000000000000000001, + &constant_swizzle); + + /* MOV dst, src */ + emit1(c, inst->Prev, RC_OPCODE_MOV, 0, + dstreg(RC_FILE_TEMPORARY, tempreg), + inst->U.I.SrcReg[0]); + + /* MAX dst.z, src, 0.00...001 */ + emit2(c, inst->Prev, RC_OPCODE_MAX, 0, + dstregtmpmask(tempreg, RC_MASK_Y), + srcreg(RC_FILE_TEMPORARY, tempreg), + srcregswz(RC_FILE_CONSTANT, constant, constant_swizzle)); + + inst->U.I.SrcReg[0] = srcreg(RC_FILE_TEMPORARY, tempreg); +} + /** * For use with radeonLocalTransform, this transforms non-native ALU * instructions of the r300 up to r500 vertex engine. @@ -572,6 +595,7 @@ int r300_transform_vertex_alu( case RC_OPCODE_DP3: transform_DP3(c, inst); return 1; case RC_OPCODE_DPH: transform_DPH(c, inst); return 1; case RC_OPCODE_FLR: transform_FLR(c, inst); return 1; + case RC_OPCODE_LIT: transform_r300_vertex_fix_LIT(c, inst); return 1; case RC_OPCODE_LRP: transform_LRP(c, inst); return 1; case RC_OPCODE_SUB: transform_SUB(c, inst); return 1; case RC_OPCODE_SWZ: transform_SWZ(c, inst); return 1; |