diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt_post_vs.c')
-rw-r--r-- | src/gallium/auxiliary/draw/draw_pt_post_vs.c | 61 |
1 files changed, 53 insertions, 8 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_post_vs.c b/src/gallium/auxiliary/draw/draw_pt_post_vs.c index 6c1cb48..9dfb478 100644 --- a/src/gallium/auxiliary/draw/draw_pt_post_vs.c +++ b/src/gallium/auxiliary/draw/draw_pt_post_vs.c @@ -147,6 +147,39 @@ static boolean post_vs_cliptest_viewport_gl( struct pt_post_vs *pvs, +/* As above plus edgeflags + */ +static boolean +post_vs_cliptest_viewport_gl_edgeflag(struct pt_post_vs *pvs, + struct vertex_header *vertices, + unsigned count, + unsigned stride ) +{ + unsigned j; + boolean needpipe; + + needpipe = post_vs_cliptest_viewport_gl( pvs, vertices, count, stride); + + /* If present, copy edgeflag VS output into vertex header. + * Otherwise, leave header as is. + */ + if (pvs->draw->vs.edgeflag_output) { + struct vertex_header *out = vertices; + int ef = pvs->draw->vs.edgeflag_output; + + for (j = 0; j < count; j++) { + const float *edgeflag = out->data[ef]; + out->edgeflag = !(edgeflag[0] != 1.0f); + needpipe |= !out->edgeflag; + out = (struct vertex_header *)( (char *)out + stride ); + } + } + return needpipe; +} + + + + /* If bypass_clipping is set, skip cliptest and rhw divide. */ static boolean post_vs_viewport( struct pt_post_vs *pvs, @@ -201,17 +234,29 @@ boolean draw_pt_post_vs_run( struct pt_post_vs *pvs, void draw_pt_post_vs_prepare( struct pt_post_vs *pvs, boolean bypass_clipping, boolean bypass_viewport, - boolean opengl ) + boolean opengl, + boolean need_edgeflags ) { - if (bypass_clipping) { - if (bypass_viewport) - pvs->run = post_vs_none; - else - pvs->run = post_vs_viewport; + if (!need_edgeflags) { + if (bypass_clipping) { + if (bypass_viewport) + pvs->run = post_vs_none; + else + pvs->run = post_vs_viewport; + } + else { + /* if (opengl) */ + pvs->run = post_vs_cliptest_viewport_gl; + } } else { - /* if (opengl) */ - pvs->run = post_vs_cliptest_viewport_gl; + /* If we need to copy edgeflags to the vertex header, it should + * mean we're running the primitive pipeline. Hence the bypass + * flags should be false. + */ + assert(!bypass_clipping); + assert(!bypass_viewport); + pvs->run = post_vs_cliptest_viewport_gl_edgeflag; } } |