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 | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_post_vs.c b/src/gallium/auxiliary/draw/draw_pt_post_vs.c index 112be50f9a..308f927b77 100644 --- a/src/gallium/auxiliary/draw/draw_pt_post_vs.c +++ b/src/gallium/auxiliary/draw/draw_pt_post_vs.c @@ -38,7 +38,14 @@ struct pt_post_vs { struct draw_vertex_info *info ); }; - +static INLINE void +initialize_vertex_header(struct vertex_header *header) +{ + header->clipmask = 0; + header->edgeflag = 1; + header->pad = 0; + header->vertex_id = UNDEFINED_VERTEX_ID; +} static INLINE float dot4(const float *a, const float *b) @@ -49,10 +56,9 @@ dot4(const float *a, const float *b) a[3]*b[3]); } - - static INLINE unsigned -compute_clipmask_gl(const float *clip, /*const*/ float plane[][4], unsigned nr) +compute_clipmask_gl(const float *clip, /*const*/ float plane[][4], unsigned nr, + boolean clip_depth) { unsigned mask = 0x0; unsigned i; @@ -69,8 +75,10 @@ compute_clipmask_gl(const float *clip, /*const*/ float plane[][4], unsigned nr) if ( clip[0] + clip[3] < 0) mask |= (1<<1); if (-clip[1] + clip[3] < 0) mask |= (1<<2); if ( clip[1] + clip[3] < 0) mask |= (1<<3); - if ( clip[2] + clip[3] < 0) mask |= (1<<4); /* match mesa clipplane numbering - for now */ - if (-clip[2] + clip[3] < 0) mask |= (1<<5); /* match mesa clipplane numbering - for now */ + if (clip_depth) { + if ( clip[2] + clip[3] < 0) mask |= (1<<4); /* match mesa clipplane numbering - for now */ + if (-clip[2] + clip[3] < 0) mask |= (1<<5); /* match mesa clipplane numbering - for now */ + } /* Followed by any remaining ones: */ @@ -103,6 +111,7 @@ static boolean post_vs_cliptest_viewport_gl( struct pt_post_vs *pvs, for (j = 0; j < info->count; j++) { float *position = out->data[pos]; + initialize_vertex_header(out); #if 0 debug_printf("%d) io = %p, data = %p = [%f, %f, %f, %f]\n", j, out, position, position[0], position[1], position[2], position[3]); @@ -114,9 +123,11 @@ static boolean post_vs_cliptest_viewport_gl( struct pt_post_vs *pvs, out->clip[3] = position[3]; out->vertex_id = 0xffff; + /* Disable depth clipping if depth clamping is enabled. */ out->clipmask = compute_clipmask_gl(out->clip, pvs->draw->plane, - pvs->draw->nr_planes); + pvs->draw->nr_planes, + !pvs->draw->depth_clamp); clipped += out->clipmask; if (out->clipmask == 0) @@ -192,6 +203,7 @@ static boolean post_vs_viewport( struct pt_post_vs *pvs, for (j = 0; j < info->count; j++) { float *position = out->data[pos]; + initialize_vertex_header(out); /* Viewport mapping only, no cliptest/rhw divide */ position[0] = position[0] * scale[0] + trans[0]; @@ -211,7 +223,16 @@ static boolean post_vs_viewport( struct pt_post_vs *pvs, static boolean post_vs_none( struct pt_post_vs *pvs, struct draw_vertex_info *info ) { + struct vertex_header *out = info->verts; + unsigned j; + if (0) debug_printf("%s\n", __FUNCTION__); + /* just initialize the vertex_id in all headers */ + for (j = 0; j < info->count; j++) { + initialize_vertex_header(out); + + out = (struct vertex_header *)((char *)out + info->stride); + } return FALSE; } |