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draw: tweak the definition of draw_need_pipeline, fix minor bug

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This commit is contained in:
Keith Whitwell 2008-03-23 21:54:44 +00:00
parent e6ea786c00
commit 3e9b1bc100
1 changed files with 15 additions and 11 deletions
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26
src/gallium/auxiliary/draw/draw_validate.c
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@ -34,20 +34,14 @@
/**
* Check if we need any special pipeline stages, or whether prims/verts
* can go through untouched.
* Check if we need any special pipeline stages, or whether
* prims/verts can go through untouched. Don't test for bypass
* clipping or vs modes, this function is just about the primitive
* pipeline stages.
*/
boolean
draw_need_pipeline(const struct draw_context *draw)
{
/* clipping */
if (!draw->rasterizer->bypass_clipping)
return TRUE;
/* vertex shader */
if (!draw->rasterizer->bypass_vs)
return TRUE;
/* line stipple */
if (draw->rasterizer->line_stipple_enable && draw->line_stipple)
return TRUE;
@ -72,6 +66,11 @@ draw_need_pipeline(const struct draw_context *draw)
if (draw->rasterizer->poly_stipple_enable && draw->pipeline.pstipple)
return TRUE;
/* unfilled polygons */
if (draw->rasterizer->fill_cw != PIPE_POLYGON_MODE_FILL ||
draw->rasterizer->fill_ccw != PIPE_POLYGON_MODE_FILL)
return TRUE;
/* polygon offset */
if (draw->rasterizer->offset_cw || draw->rasterizer->offset_ccw)
return TRUE;
@ -84,9 +83,14 @@ draw_need_pipeline(const struct draw_context *draw)
if (draw->rasterizer->light_twoside)
return TRUE;
/* polygon cull */
/* polygon cull - this is difficult - hardware can cull just fine
* most of the time (though sometimes CULL_NEITHER is unsupported.
*
* Generally this isn't a reason to require the pipeline, though.
*
if (draw->rasterizer->cull_mode)
return TRUE;
*/
return FALSE;
}