diff options
| author | Axel Davy <[email protected]> | 2014-12-03 15:50:53 +0100 |
|---|---|---|
| committer | Emil Velikov <[email protected]> | 2015-01-22 22:16:20 +0000 |
| commit | c9aa9a0addee01201d28a7bed10f7e320af591a1 (patch) | |
| tree | 0372d94d33ed7b913418f7f725dcc3c72e8d862f /src/gallium | |
| parent | f5e8e3fb806ef8516a7bd5fabdce4cc24e4c9636 (diff) | |
st/nine: Correct LOG on negative values
We should take the absolute value of the input.
Also return -FLT_MAX instead of -Inf for an input of 0.
Reviewed-by: Ilia Mirkin <[email protected]>
Reviewed-by: David Heidelberg <[email protected]>
Signed-off-by: Axel Davy <[email protected]>
Cc: "10.4" <[email protected]>
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/state_trackers/nine/nine_shader.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/src/gallium/state_trackers/nine/nine_shader.c b/src/gallium/state_trackers/nine/nine_shader.c index fa1151c124a..a6ca6d0d4c7 100644 --- a/src/gallium/state_trackers/nine/nine_shader.c +++ b/src/gallium/state_trackers/nine/nine_shader.c @@ -1958,6 +1958,17 @@ DECL_SPECIAL(RSQ) return D3D_OK; } +DECL_SPECIAL(LOG) +{ + struct ureg_program *ureg = tx->ureg; + struct ureg_dst tmp = tx_scratch_scalar(tx); + struct ureg_dst dst = tx_dst_param(tx, &tx->insn.dst[0]); + struct ureg_src src = tx_src_param(tx, &tx->insn.src[0]); + ureg_LG2(ureg, tmp, ureg_abs(src)); + ureg_MAX(ureg, dst, ureg_imm1f(ureg, -FLT_MAX), tx_src_scalar(tmp)); + return D3D_OK; +} + DECL_SPECIAL(NRM) { struct ureg_program *ureg = tx->ureg; @@ -2281,7 +2292,7 @@ struct sm1_op_info inst_table[] = _OPI(SLT, SLT, V(0,0), V(3,0), V(0,0), V(3,0), 1, 2, NULL), /* 12 */ _OPI(SGE, SGE, V(0,0), V(3,0), V(0,0), V(3,0), 1, 2, NULL), /* 13 */ _OPI(EXP, EX2, V(0,0), V(3,0), V(0,0), V(3,0), 1, 1, NULL), /* 14 */ - _OPI(LOG, LG2, V(0,0), V(3,0), V(0,0), V(3,0), 1, 1, NULL), /* 15 */ + _OPI(LOG, LG2, V(0,0), V(3,0), V(0,0), V(3,0), 1, 1, SPECIAL(LOG)), /* 15 */ _OPI(LIT, LIT, V(0,0), V(3,0), V(0,0), V(0,0), 1, 1, NULL), /* 16 */ _OPI(DST, DST, V(0,0), V(3,0), V(0,0), V(3,0), 1, 2, NULL), /* 17 */ _OPI(LRP, LRP, V(0,0), V(3,0), V(0,0), V(3,0), 1, 3, NULL), /* 18 */ @@ -2345,7 +2356,7 @@ struct sm1_op_info inst_table[] = _OPI(EXPP, EXP, V(0,0), V(1,1), V(0,0), V(0,0), 1, 1, NULL), _OPI(EXPP, EX2, V(2,0), V(3,0), V(0,0), V(0,0), 1, 1, NULL), - _OPI(LOGP, LG2, V(0,0), V(3,0), V(0,0), V(0,0), 1, 1, NULL), + _OPI(LOGP, LG2, V(0,0), V(3,0), V(0,0), V(0,0), 1, 1, SPECIAL(LOG)), _OPI(CND, NOP, V(0,0), V(0,0), V(0,0), V(1,4), 1, 3, SPECIAL(CND)), _OPI(DEF, NOP, V(0,0), V(3,0), V(0,0), V(3,0), 1, 0, SPECIAL(DEF)), |