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vc4: Add a dump-the-surface-contents routine. 

This has been useful once again while trying to debug stride issues
between render targets and texturing.
This commit is contained in:
Eric Anholt 2015-01-14 09:58:35 +13:00
parent 4df13f55b6
commit 7bc39c8418
2 changed files with 101 additions and 0 deletions
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100
src/gallium/drivers/vc4/vc4_resource.c
View File

@ -468,6 +468,106 @@ vc4_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
FREE(psurf);
}
/** Debug routine to dump the contents of an 8888 surface to the console */
void
vc4_dump_surface(struct pipe_surface *psurf)
{
if (!psurf)
return;
struct pipe_resource *prsc = psurf->texture;
struct vc4_resource *rsc = vc4_resource(prsc);
uint32_t *map = vc4_bo_map(rsc->bo);
uint32_t stride = rsc->slices[0].stride / 4;
uint32_t width = psurf->width;
uint32_t height = psurf->height;
uint32_t chunk_w = width / 79;
uint32_t chunk_h = height / 40;
uint32_t found_colors[10];
uint32_t num_found_colors = 0;
if (rsc->vc4_format != VC4_TEXTURE_TYPE_RGBA32R) {
fprintf(stderr, "%s: Unsupported format %s\n",
__func__, util_format_short_name(psurf->format));
return;
}
for (int by = 0; by < height; by += chunk_h) {
for (int bx = 0; bx < width; bx += chunk_w) {
int all_found_color = -1; /* nothing found */
for (int y = by; y < MIN2(height, by + chunk_h); y++) {
for (int x = bx; x < MIN2(width, bx + chunk_w); x++) {
uint32_t pix = map[y * stride + x];
int i;
for (i = 0; i < num_found_colors; i++) {
if (pix == found_colors[i])
break;
}
if (i == num_found_colors &&
num_found_colors <
ARRAY_SIZE(found_colors)) {
found_colors[num_found_colors++] = pix;
}
if (i < num_found_colors) {
if (all_found_color == -1)
all_found_color = i;
else if (i != all_found_color)
all_found_color = ARRAY_SIZE(found_colors);
}
}
}
/* If all pixels for this chunk have a consistent
* value, then print a character for it. Either a
* fixed name (particularly common for piglit tests),
* or a runtime-generated number.
*/
if (all_found_color >= 0 &&
all_found_color < ARRAY_SIZE(found_colors)) {
static const struct {
uint32_t val;
const char *c;
} named_colors[] = {
{ 0xff000000, "█" },
{ 0x00000000, "█" },
{ 0xffff0000, "r" },
{ 0xff00ff00, "g" },
{ 0xff0000ff, "b" },
{ 0xffffffff, "w" },
};
int i;
for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
if (named_colors[i].val ==
found_colors[all_found_color]) {
fprintf(stderr, "%s",
named_colors[i].c);
break;
}
}
/* For unnamed colors, print a number and the
* numbers will have values printed at the
* end.
*/
if (i == ARRAY_SIZE(named_colors)) {
fprintf(stderr, "%c",
'0' + all_found_color);
}
} else {
/* If there's no consistent color, print this.
*/
fprintf(stderr, ".");
}
}
fprintf(stderr, "\n");
}
for (int i = 0; i < num_found_colors; i++) {
fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
}
}
static void
vc4_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
{

1
src/gallium/drivers/vc4/vc4_resource.h
View File

@ -112,5 +112,6 @@ void vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
struct pipe_sampler_view *view);
void vc4_update_shadow_index_buffer(struct pipe_context *pctx,
const struct pipe_index_buffer *ib);
void vc4_dump_surface(struct pipe_surface *psurf);
#endif /* VC4_RESOURCE_H */