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draw: improve the clipper debug/printf code

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Reviewed-by: José Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul 2013-01-21 11:37:07 -07:00
parent 4a938ef713
commit ed643d6b2f
1 changed files with 20 additions and 1 deletions
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21
src/gallium/auxiliary/draw/draw_pipe_clip.c
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@ -42,6 +42,10 @@
#include "draw_fs.h"
/** Set to 1 to enable printing of coords before/after clipping */
#define DEBUG_CLIP 0
#ifndef IS_NEGATIVE
#define IS_NEGATIVE(X) ((X) < 0.0)
#endif
@ -237,12 +241,17 @@ static void emit_poly( struct draw_stage *stage,
if (i == n - 1 && edgeflags[i])
header.flags |= edge_last;
if (0) {
if (DEBUG_CLIP) {
const struct draw_vertex_shader *vs = stage->draw->vs.vertex_shader;
uint j, k;
debug_printf("Clipped tri: (flat-shade-first = %d)\n",
stage->draw->rasterizer->flatshade_first);
for (j = 0; j < 3; j++) {
debug_printf(" Vert %d: clip: %f %f %f %f\n", j,
header.v[j]->clip[0],
header.v[j]->clip[1],
header.v[j]->clip[2],
header.v[j]->clip[3]);
for (k = 0; k < vs->info.num_outputs; k++) {
debug_printf(" Vert %d: Attr %d: %f %f %f %f\n", j, k,
header.v[j]->data[k][0],
@ -315,6 +324,16 @@ do_clip_tri( struct draw_stage *stage,
inlist[1] = header->v[1];
inlist[2] = header->v[2];
if (DEBUG_CLIP) {
const float *v0 = header->v[0]->clip;
const float *v1 = header->v[1]->clip;
const float *v2 = header->v[2]->clip;
debug_printf("Clip triangle:\n");
debug_printf(" %f, %f, %f, %f\n", v0[0], v0[1], v0[2], v0[3]);
debug_printf(" %f, %f, %f, %f\n", v1[0], v1[1], v1[2], v1[3]);
debug_printf(" %f, %f, %f, %f\n", v2[0], v2[1], v2[2], v2[3]);
}
/*
* Note: at this point we can't just use the per-vertex edge flags.
* We have to observe the edge flag bits set in header->flags which