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draw: added new assertions to clipping code

This commit is contained in:
Brian Paul 2010-07-22 11:18:45 -06:00
parent 63ba1ec3c1
commit ca3238f3fc
1 changed files with 10 additions and 1 deletions
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11
src/gallium/auxiliary/draw/draw_pipe_clip.c
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@ -262,6 +262,7 @@ do_clip_tri( struct draw_stage *stage,
clipmask &= ~(1<<plane_idx);
assert(n < MAX_CLIPPED_VERTICES);
inlist[n] = inlist[0]; /* prevent rotation of vertices */
for (i = 1; i <= n; i++) {
@ -270,11 +271,17 @@ do_clip_tri( struct draw_stage *stage,
float dp = dot4( vert->clip, plane );
if (!IS_NEGATIVE(dp_prev)) {
assert(outcount < MAX_CLIPPED_VERTICES);
outlist[outcount++] = vert_prev;
}
if (DIFFERENT_SIGNS(dp, dp_prev)) {
struct vertex_header *new_vert = clipper->stage.tmp[tmpnr++];
struct vertex_header *new_vert;
assert(tmpnr < MAX_CLIPPED_VERTICES+1);
new_vert = clipper->stage.tmp[tmpnr++];
assert(outcount < MAX_CLIPPED_VERTICES);
outlist[outcount++] = new_vert;
if (IS_NEGATIVE(dp)) {
@ -317,12 +324,14 @@ do_clip_tri( struct draw_stage *stage,
if (clipper->flat) {
if (stage->draw->rasterizer->flatshade_first) {
if (inlist[0] != header->v[0]) {
assert(tmpnr < MAX_CLIPPED_VERTICES + 1);
inlist[0] = dup_vert(stage, inlist[0], tmpnr++);
copy_colors(stage, inlist[0], header->v[0]);
}
}
else {
if (inlist[0] != header->v[2]) {
assert(tmpnr < MAX_CLIPPED_VERTICES + 1);
inlist[0] = dup_vert(stage, inlist[0], tmpnr++);
copy_colors(stage, inlist[0], header->v[2]);
}