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Diffstat (limited to 'src/gallium/drivers/softpipe/sp_setup.c')
-rw-r--r--src/gallium/drivers/softpipe/sp_setup.c41
1 files changed, 4 insertions, 37 deletions
diff --git a/src/gallium/drivers/softpipe/sp_setup.c b/src/gallium/drivers/softpipe/sp_setup.c
index 35ef9e698d5..ca02d4df489 100644
--- a/src/gallium/drivers/softpipe/sp_setup.c
+++ b/src/gallium/drivers/softpipe/sp_setup.c
@@ -111,34 +111,12 @@ struct setup_context {
uint numFragsWritten; /**< per primitive */
#endif
- unsigned winding; /* which winding to cull */
unsigned nr_vertex_attrs;
};
-/**
- * Do triangle cull test using tri determinant (sign indicates orientation)
- * \return true if triangle is to be culled.
- */
-static INLINE boolean
-cull_tri(const struct setup_context *setup, float det)
-{
- if (det != 0) {
- /* if (det < 0 then Z points toward camera and triangle is
- * counter-clockwise winding.
- */
- unsigned winding = (det < 0) ? PIPE_WINDING_CCW : PIPE_WINDING_CW;
-
- if ((winding & setup->winding) == 0)
- return FALSE;
- }
-
- /* Culled:
- */
- return TRUE;
-}
@@ -393,8 +371,8 @@ setup_sort_vertices(struct setup_context *setup,
* 0 = front-facing, 1 = back-facing
*/
setup->facing =
- ((det > 0.0) ^
- (setup->softpipe->rasterizer->front_winding == PIPE_WINDING_CW));
+ ((det < 0.0) ^
+ (setup->softpipe->rasterizer->front_ccw));
/* Prepare pixel offset for rasterisation:
* - pixel center (0.5, 0.5) for GL, or
@@ -832,8 +810,8 @@ sp_setup_tri(struct setup_context *setup,
setup->numFragsWritten = 0;
#endif
- if (cull_tri( setup, det ))
- return;
+ /* Culling already done by draw module.
+ */
if (!setup_sort_vertices( setup, det, v0, v1, v2 ))
return;
@@ -1418,17 +1396,6 @@ sp_setup_prepare(struct setup_context *setup)
setup->nr_vertex_attrs = draw_num_shader_outputs(sp->draw);
sp->quad.first->begin( sp->quad.first );
-
- if (sp->reduced_api_prim == PIPE_PRIM_TRIANGLES &&
- sp->rasterizer->fill_cw == PIPE_POLYGON_MODE_FILL &&
- sp->rasterizer->fill_ccw == PIPE_POLYGON_MODE_FILL) {
- /* we'll do culling */
- setup->winding = sp->rasterizer->cull_mode;
- }
- else {
- /* 'draw' will do culling */
- setup->winding = PIPE_WINDING_NONE;
- }
}