diff options
| author | Luca Barbieri <luca@luca-barbieri.com> | 2010-08-21 19:35:06 +0200 |
|---|---|---|
| committer | Luca Barbieri <luca@luca-barbieri.com> | 2010-08-21 20:42:15 +0200 |
| commit | 4aec8aa2e33b0bf9d5e8c292d604fe988e439bca (patch) | |
| tree | 34428806e28ad9c62c5d4b7e3232aa3bf5fbf1a4 /src/gallium/drivers/nvfx/nvfx_fragprog.c | |
| parent | 587d26fdf9c58503333e4e7603a115881a80260b (diff) | |
nvfx: implement TRUNC in vp and fp
Diffstat (limited to 'src/gallium/drivers/nvfx/nvfx_fragprog.c')
| -rw-r--r-- | src/gallium/drivers/nvfx/nvfx_fragprog.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/src/gallium/drivers/nvfx/nvfx_fragprog.c b/src/gallium/drivers/nvfx/nvfx_fragprog.c index 2b749efece..2c24d523c4 100644 --- a/src/gallium/drivers/nvfx/nvfx_fragprog.c +++ b/src/gallium/drivers/nvfx/nvfx_fragprog.c @@ -725,12 +725,25 @@ nvfx_fragprog_parse_instruction(struct nvfx_context* nvfx, struct nvfx_fpc *fpc, case TGSI_OPCODE_TEX: nvfx_fp_emit(fpc, tex(sat, TEX, unit, dst, mask, src[0], none, none)); break; - case TGSI_OPCODE_TXB: - nvfx_fp_emit(fpc, tex(sat, TXB, unit, dst, mask, src[0], none, none)); - break; - case TGSI_OPCODE_TXP: - nvfx_fp_emit(fpc, tex(sat, TXP, unit, dst, mask, src[0], none, none)); - break; + case TGSI_OPCODE_TRUNC: + tmp = nvfx_src(temp(fpc)); + insn = arith(0, MOV, none.reg, mask, src[0], none, none); + insn.cc_update = 1; + nvfx_fp_emit(fpc, insn); + + nvfx_fp_emit(fpc, arith(0, FLR, tmp.reg, mask, abs(src[0]), none, none)); + nvfx_fp_emit(fpc, arith(sat, MOV, dst, mask, tmp, none, none)); + + insn = arith(sat, MOV, dst, mask, neg(tmp), none, none); + insn.cc_test = NVFX_COND_LT; + nvfx_fp_emit(fpc, insn); + break; + case TGSI_OPCODE_TXB: + nvfx_fp_emit(fpc, tex(sat, TXB, unit, dst, mask, src[0], none, none)); + break; + case TGSI_OPCODE_TXP: + nvfx_fp_emit(fpc, tex(sat, TXP, unit, dst, mask, src[0], none, none)); + break; case TGSI_OPCODE_XPD: tmp = nvfx_src(temp(fpc)); nvfx_fp_emit(fpc, arith(0, MUL, tmp.reg, mask, swz(src[0], Z, X, Y, Y), swz(src[1], Y, Z, X, X), none)); |