uint numFragsWritten; /**< per primitive */
#endif
- unsigned winding; /* which winding to cull */
+ unsigned cull_face; /* which faces 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;
-}
const float (*v1)[4],
const float (*v2)[4])
{
- setup->vprovoke = v2;
+ if (setup->softpipe->rasterizer->flatshade_first)
+ setup->vprovoke = v0;
+ else
+ setup->vprovoke = v2;
/* determine bottom to top order of vertices */
{
* 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));
+
+ {
+ unsigned face = setup->facing == 0 ? PIPE_FACE_FRONT : PIPE_FACE_BACK;
+
+ if (face & setup->cull_face)
+ return FALSE;
+ }
+
/* Prepare pixel offset for rasterisation:
* - pixel center (0.5, 0.5) for GL, or
setup->coef[slot].dady[0] = 0.0;
/*Y*/
setup->coef[slot].a0[1] =
- (spfs->origin_lower_left ? setup->softpipe->framebuffer.height : 0)
+ (spfs->origin_lower_left ? setup->softpipe->framebuffer.height-1 : 0)
+ (spfs->pixel_center_integer ? 0.0 : 0.5);
setup->coef[slot].dadx[1] = 0.0;
setup->coef[slot].dady[1] = spfs->origin_lower_left ? -1.0 : 1.0;
setup->numFragsWritten = 0;
#endif
- if (cull_tri( setup, det ))
- return;
-
if (!setup_sort_vertices( setup, det, v0, v1, v2 ))
return;
+
setup_tri_coefficients( setup );
setup_tri_edges( setup );
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) {
+ sp->rasterizer->fill_front == PIPE_POLYGON_MODE_FILL &&
+ sp->rasterizer->fill_back == PIPE_POLYGON_MODE_FILL) {
/* we'll do culling */
- setup->winding = sp->rasterizer->cull_mode;
+ setup->cull_face = sp->rasterizer->cull_face;
}
else {
/* 'draw' will do culling */
- setup->winding = PIPE_WINDING_NONE;
+ setup->cull_face = PIPE_FACE_NONE;
}
}