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i965: Consolidate some of the intel_blit logic

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An upcoming patch is going to introduce some code here, and having this code
organized as the patch does makes it a bit easier to read later.

There should be no functional change here.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
This commit is contained in:
Ben Widawsky 2014-12-23 12:28:29 -08:00
parent 0467a52dc3
commit efde74c89d
1 changed files with 8 additions and 20 deletions
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28
src/mesa/drivers/dri/i965/intel_blit.c
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@ -226,35 +226,23 @@ intel_miptree_blit(struct brw_context *brw,
if (src_flip != dst_flip)
src_pitch = -src_pitch;
uint32_t src_image_x, src_image_y;
uint32_t src_image_x, src_image_y, dst_image_x, dst_image_y;
intel_miptree_get_image_offset(src_mt, src_level, src_slice,
&src_image_x, &src_image_y);
src_x += src_image_x;
src_y += src_image_y;
/* The blitter interprets the 16-bit src x/y as a signed 16-bit value,
* where negative values are invalid. The values we're working with are
* unsigned, so make sure we don't overflow.
*/
if (src_x >= 32768 || src_y >= 32768) {
perf_debug("Falling back due to >=32k src offset (%d, %d)\n",
src_x, src_y);
return false;
}
uint32_t dst_image_x, dst_image_y;
intel_miptree_get_image_offset(dst_mt, dst_level, dst_slice,
&dst_image_x, &dst_image_y);
src_x += src_image_x;
src_y += src_image_y;
dst_x += dst_image_x;
dst_y += dst_image_y;
/* The blitter interprets the 16-bit destination x/y as a signed 16-bit
* value. The values we're working with are unsigned, so make sure we
* don't overflow.
* value. The values we're working with are unsigned, so make sure we don't
* overflow.
*/
if (dst_x >= 32768 || dst_y >= 32768) {
perf_debug("Falling back due to >=32k dst offset (%d, %d)\n",
dst_x, dst_y);
if (src_x >= 32768 || src_y >= 32768 || dst_x >= 32768 || dst_y >= 32768) {
perf_debug("Falling back due to >=32k offset [src(%d, %d) dst(%d, %d)]\n",
src_x, src_y, dst_x, dst_y);
return false;
}