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st/nine: Handle special LIT case 

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Axel Davy <axel.davy@ens.fr>
This commit is contained in:
Axel Davy 2014-12-23 15:15:10 +01:00
parent 114ac39a88
commit 8d3e063e68
1 changed files with 18 additions and 1 deletions
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19
src/gallium/state_trackers/nine/nine_shader.c
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@ -2040,6 +2040,23 @@ DECL_SPECIAL(LOG)
return D3D_OK;
}
DECL_SPECIAL(LIT)
{
struct ureg_program *ureg = tx->ureg;
struct ureg_dst tmp = tx_scratch(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_LIT(ureg, tmp, src);
/* d3d9 LIT is the same than gallium LIT. One difference is that d3d9
* states that dst.z is 0 when src.y <= 0. Gallium definition can assign
* it 0^0 if src.w=0, which value is driver dependent. */
ureg_CMP(ureg, ureg_writemask(dst, TGSI_WRITEMASK_Z),
ureg_negate(ureg_scalar(src, TGSI_SWIZZLE_Y)),
ureg_src(tmp), ureg_imm1f(ureg, 0.0f));
ureg_MOV(ureg, ureg_writemask(dst, TGSI_WRITEMASK_XYW), ureg_src(tmp));
return D3D_OK;
}
DECL_SPECIAL(NRM)
{
struct ureg_program *ureg = tx->ureg;
@ -2543,7 +2560,7 @@ struct sm1_op_info inst_table[] =
_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, SPECIAL(LOG)), /* 15 */
_OPI(LIT, LIT, V(0,0), V(3,0), V(0,0), V(0,0), 1, 1, NULL), /* 16 */
_OPI(LIT, LIT, V(0,0), V(3,0), V(0,0), V(0,0), 1, 1, SPECIAL(LIT)), /* 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 */
_OPI(FRC, FRC, V(0,0), V(3,0), V(0,0), V(3,0), 1, 1, NULL), /* 19 */