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Use a consistent number to identify undefined vertices.

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This commit is contained in:
José Fonseca 2007-11-07 12:08:19 +00:00
parent 3922baede2
commit c28fdf3096
5 changed files with 28 additions and 17 deletions
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2
src/mesa/pipe/draw/draw_clip.c
View file

@ -102,7 +102,7 @@ static void interp( const struct clipper *clip,
dst->clipmask = 0;
dst->edgeflag = 0;
dst->pad = 0;
dst->vertex_id = 0;
dst->vertex_id = UNDEFINED_VERTEX_ID;
}
/* Clip coordinates: interpolate normally

6
src/mesa/pipe/draw/draw_private.h
View file

@ -52,6 +52,7 @@
struct gallivm_prog;
struct gallivm_cpu_engine;
/**
* Basic vertex info.
* Carry some useful information around with the vertices in the prim pipe.
@ -67,6 +68,9 @@ struct vertex_header {
float data[][4]; /* Note variable size */
};
/* NOTE: It should match vertex_id size above */
#define UNDEFINED_VERTEX_ID 0xffff
/* XXX This is too large */
#define MAX_VERTEX_SIZE ((2 + PIPE_MAX_SHADER_OUTPUTS) * 4 * sizeof(float))
@ -299,7 +303,7 @@ dup_vert( struct draw_stage *stage,
{
struct vertex_header *tmp = stage->tmp[idx];
memcpy(tmp, vert, stage->draw->vertex_info.size * sizeof(float) );
tmp->vertex_id = ~0;
tmp->vertex_id = UNDEFINED_VERTEX_ID;
return tmp;
}

4
src/mesa/pipe/draw/draw_vertex_cache.c
View file

@ -88,7 +88,7 @@ static struct vertex_header *get_vertex( struct draw_context *draw,
draw->vcache.vertex[slot]->clipmask = 0;
draw->vcache.vertex[slot]->edgeflag = 1; /*XXX use user's edge flag! */
draw->vcache.vertex[slot]->pad = 0;
draw->vcache.vertex[slot]->vertex_id = ~0;
draw->vcache.vertex[slot]->vertex_id = UNDEFINED_VERTEX_ID;
}
@ -130,7 +130,7 @@ void draw_vertex_cache_reset_vertex_ids( struct draw_context *draw )
unsigned i;
for (i = 0; i < Elements(draw->vcache.vertex); i++)
draw->vcache.vertex[i]->vertex_id = ~0;
draw->vcache.vertex[i]->vertex_id = UNDEFINED_VERTEX_ID;
}

27
src/mesa/pipe/i915simple/i915_prim_vbuf.c
View file

@ -98,15 +98,16 @@ static INLINE struct vbuf_stage *vbuf_stage( struct draw_stage *stage )
}
static inline
boolean overflow( void *map, void *ptr, unsigned bytes, unsigned bufsz )
static INLINE boolean
overflow( void *map, void *ptr, unsigned bytes, unsigned bufsz )
{
unsigned long used = (char *)ptr - (char *)map;
return (used + bytes) > bufsz;
}
static void check_space( struct vbuf_stage *vbuf )
static INLINE void
check_space( struct vbuf_stage *vbuf )
{
if (overflow( vbuf->vertex_map,
vbuf->vertex_ptr,
@ -125,7 +126,7 @@ static void check_space( struct vbuf_stage *vbuf )
* have a couple of slots at the beginning (1-dword header, 4-dword
* clip pos) that we ignore here.
*/
static inline void
static INLINE void
emit_vertex( struct vbuf_stage *vbuf,
struct vertex_header *vertex )
{
@ -137,6 +138,15 @@ emit_vertex( struct vbuf_stage *vbuf,
// fprintf(stderr, "emit vertex %d to %p\n",
// vbuf->nr_vertices, vbuf->vertex_ptr);
if(vertex->vertex_id != UNDEFINED_VERTEX_ID) {
if(vertex->vertex_id < vbuf->nr_vertices)
return;
else
fprintf(stderr, "Bad vertex id 0x%04x (>= 0x%04x)\n",
vertex->vertex_id, vbuf->nr_vertices);
return;
}
vertex->vertex_id = vbuf->nr_vertices++;
for (i = 0; i < vinfo->num_attribs; i++) {
@ -190,8 +200,7 @@ static void vbuf_tri( struct draw_stage *stage,
check_space( vbuf );
for (i = 0; i < 3; i++) {
if (prim->v[i]->vertex_id == 0xffff)
emit_vertex( vbuf, prim->v[i] );
emit_vertex( vbuf, prim->v[i] );
vbuf->element_map[vbuf->nr_elements++] = prim->v[i]->vertex_id;
}
@ -207,8 +216,7 @@ static void vbuf_line(struct draw_stage *stage,
check_space( vbuf );
for (i = 0; i < 2; i++) {
if (prim->v[i]->vertex_id == 0xffff)
emit_vertex( vbuf, prim->v[i] );
emit_vertex( vbuf, prim->v[i] );
vbuf->element_map[vbuf->nr_elements++] = prim->v[i]->vertex_id;
}
@ -222,8 +230,7 @@ static void vbuf_point(struct draw_stage *stage,
check_space( vbuf );
if (prim->v[0]->vertex_id == 0xffff)
emit_vertex( vbuf, prim->v[0] );
emit_vertex( vbuf, prim->v[0] );
vbuf->element_map[vbuf->nr_elements++] = prim->v[0]->vertex_id;
}

6
src/mesa/pipe/softpipe/sp_prim_vbuf.c
View file

@ -140,7 +140,7 @@ static void vbuf_tri( struct draw_stage *stage,
vbuf_flush_elements( stage );
for (i = 0; i < 3; i++) {
if (prim->v[i]->vertex_id == 0xffff)
if (prim->v[i]->vertex_id == UNDEFINED_VERTEX_ID)
emit_vertex( vbuf, prim->v[i] );
vbuf->element_map[vbuf->nr_elements++] = (ushort) prim->v[i]->vertex_id;
@ -158,7 +158,7 @@ static void vbuf_line(struct draw_stage *stage,
vbuf_flush_elements( stage );
for (i = 0; i < 2; i++) {
if (prim->v[i]->vertex_id == 0xffff)
if (prim->v[i]->vertex_id == UNDEFINED_VERTEX_ID)
emit_vertex( vbuf, prim->v[i] );
vbuf->element_map[vbuf->nr_elements++] = (ushort) prim->v[i]->vertex_id;
@ -174,7 +174,7 @@ static void vbuf_point(struct draw_stage *stage,
if (!check_space( vbuf ))
vbuf_flush_elements( stage );
if (prim->v[0]->vertex_id == 0xffff)
if (prim->v[0]->vertex_id == UNDEFINED_VERTEX_ID)
emit_vertex( vbuf, prim->v[0] );
vbuf->element_map[vbuf->nr_elements++] = (ushort) prim->v[0]->vertex_id;