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gallium: take reduced prim, fill modes into account when culling

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This commit is contained in:
Brian Paul 2008-04-14 10:56:56 -06:00
parent 983b6a73e1
commit f58ab8e75c
3 changed files with 27 additions and 1 deletions
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2
src/gallium/drivers/softpipe/sp_context.h
View file

@ -105,6 +105,8 @@ struct softpipe_context {
int psize_slot;
unsigned reduced_api_prim; /**< PIPE_PRIM_POINTS, _LINES or _TRIANGLES */
#if 0
/* Stipple derived state:
*/

15
src/gallium/drivers/softpipe/sp_draw_arrays.c
View file

@ -78,6 +78,20 @@ softpipe_unmap_constant_buffers(struct softpipe_context *sp)
}
static unsigned reduced_prim[PIPE_PRIM_POLYGON + 1] = {
PIPE_PRIM_POINTS,
PIPE_PRIM_LINES,
PIPE_PRIM_LINES,
PIPE_PRIM_LINES,
PIPE_PRIM_TRIANGLES,
PIPE_PRIM_TRIANGLES,
PIPE_PRIM_TRIANGLES,
PIPE_PRIM_TRIANGLES,
PIPE_PRIM_TRIANGLES,
PIPE_PRIM_TRIANGLES
};
boolean
softpipe_draw_arrays(struct pipe_context *pipe, unsigned mode,
unsigned start, unsigned count)
@ -115,6 +129,7 @@ softpipe_draw_elements(struct pipe_context *pipe,
assert(0);
#endif
sp->reduced_api_prim = reduced_prim[mode];
if (sp->dirty)
softpipe_update_derived( sp );

11
src/gallium/drivers/softpipe/sp_setup.c
View file

@ -1254,7 +1254,16 @@ void setup_prepare( struct setup_context *setup )
sp->quad.first->begin(sp->quad.first);
}
setup->winding = sp->rasterizer->cull_mode;
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;
}
}