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glamor_dump_pixmap: Add helper routine to dump pixmap.

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For debug purpose only to dump the pixmap's content.
As this function will call glamor_prepare_access/glamor_finish_access
internally. Please use it carefully.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
This commit is contained in:
Zhigang Gong 2012-02-03 11:46:01 +08:00 committed by Eric Anholt
parent 91891b3711
commit bf24c2c068
1 changed files with 53 additions and 0 deletions
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53
glamor/glamor_utils.h
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@ -610,4 +610,57 @@ inline static Bool glamor_tex_format_is_readable(GLenum format)
}
static inline void _glamor_dump_pixmap_byte(PixmapPtr pixmap, int x, int y, int w, int h)
{
int i,j;
unsigned char * p = pixmap->devPrivate.ptr;
int stride = pixmap->devKind;
p = p + y * stride + x;
ErrorF("devKind %d, x %d y %d w %d h %d width %d height %d\n", stride, x, y, w, h, pixmap->drawable.width, pixmap->drawable.height);
for (i = 0; i < h; i++)
{
ErrorF("line %3d: ", i);
for(j = 0; j < w; j++)
ErrorF("%2x ", p[j]);
p += stride;
ErrorF("\n");
}
}
static inline void _glamor_dump_pixmap_word(PixmapPtr pixmap, int x, int y, int w, int h)
{
int i,j;
unsigned int * p = pixmap->devPrivate.ptr;
int stride = pixmap->devKind / 4;
p = p + y * stride + x;
for (i = 0; i < h; i++)
{
ErrorF("line %3d: ", i);
for(j = 0; j < w; j++)
ErrorF("%2x ", p[j]);
p += stride;
ErrorF("\n");
}
}
static inline void glamor_dump_pixmap(PixmapPtr pixmap, int x, int y, int w, int h)
{
glamor_prepare_access(&pixmap->drawable, GLAMOR_ACCESS_RO);
switch (pixmap->drawable.depth) {
case 8:
_glamor_dump_pixmap_byte(pixmap, x, y, w, h);
break;
case 24:
case 32:
_glamor_dump_pixmap_word(pixmap, x, y, w, h);
break;
default:
assert(0);
}
glamor_finish_access(&pixmap->drawable, GLAMOR_ACCESS_RO);
}
#endif