st/nine: Enable passthrough only if positiont is used

Wine tests for the passthrough feature are for positiont.

Nothing seems to indicate passthrough happens when positiont
it not used. However having passthrough with positiont makes
sense (to be used with ProcessVertices outputs).

Signed-off-by: Axel Davy <axel.davy@ens.fr>

diff --git a/src/gallium/state_trackers/nine/nine_ff.c b/src/gallium/state_trackers/nine/nine_ff.c
index ce19b9ba3dd27c1f1b4d0a557b71729751da9dd5..d0a8361b6739df18f3c53b6a90ac60490951c4b6 100644 (file)
--- a/src/gallium/state_trackers/nine/nine_ff.c
+++ b/src/gallium/state_trackers/nine/nine_ff.c
@@ -1584,6 +1584,8 @@ nine_ff_get_vs(struct NineDevice9 *device)
     key.passthrough &= ~((1 << NINE_DECLUSAGE_POSITION) | (1 << NINE_DECLUSAGE_PSIZE) |
                          (1 << NINE_DECLUSAGE_TEXCOORD) | (1 << NINE_DECLUSAGE_POSITIONT) |
                          (1 << NINE_DECLUSAGE_TESSFACTOR) | (1 << NINE_DECLUSAGE_SAMPLE));
+    if (!key.position_t)
+        key.passthrough = 0;
     key.pointscale = !!state->rs[D3DRS_POINTSCALEENABLE];
 
     key.lighting = !!state->rs[D3DRS_LIGHTING] &&  state->ff.num_lights_active;