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st/nine: Forbid POSITION0 for PS3.0

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POSITION0 input is forbidden for PS3.0 apparently.

Signed-off-by: Axel Davy <axel.davy@ens.fr>
This commit is contained in:
Axel Davy 2016-02-21 16:38:23 +01:00
parent 217d969746
commit a77d8cd710
1 changed files with 5 additions and 0 deletions
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5
src/gallium/state_trackers/nine/nine_shader.c
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@ -2054,6 +2054,11 @@ DECL_SPECIAL(DCL)
assert(sem.reg.idx < ARRAY_SIZE(tx->regs.v));
if (tgsi.Name == TGSI_SEMANTIC_POSITION) {
/* Position0/PositionT0 are forbidden (likely because vPos already does that) */
if (sem.usage == D3DDECLUSAGE_POSITION ||
sem.usage == D3DDECLUSAGE_POSITIONT)
return D3DERR_INVALIDCALL;
/* Following code is for depth */
tx->regs.v[sem.reg.idx] = nine_get_position_input(tx);
return D3D_OK;
}