i965/miptree_map_blit: Don't do the initial copy if INVALIDATE_RANGE is set
Before we were always coping from the buffer being mapped into the temporary buffer. However, if INVALIDATE_RANGE is set, then we know that the data is going to be junk after we unmap so there's no point in doing the blit. This is important because doing the blit will cause a stall 3 lines later when we map the buffer. Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
parent
f52fe39d31
commit
ae417957e0
|
@ -1807,14 +1807,21 @@ intel_miptree_map_blit(struct brw_context *brw,
|
|||
}
|
||||
map->stride = map->mt->pitch;
|
||||
|
||||
if (!intel_miptree_blit(brw,
|
||||
mt, level, slice,
|
||||
map->x, map->y, false,
|
||||
map->mt, 0, 0,
|
||||
0, 0, false,
|
||||
map->w, map->h, GL_COPY)) {
|
||||
fprintf(stderr, "Failed to blit\n");
|
||||
goto fail;
|
||||
/* One of either READ_BIT or WRITE_BIT or both is set. READ_BIT implies no
|
||||
* INVALIDATE_RANGE_BIT. WRITE_BIT needs the original values read in unless
|
||||
* invalidate is set, since we'll be writing the whole rectangle from our
|
||||
* temporary buffer back out.
|
||||
*/
|
||||
if (!(map->mode & GL_MAP_INVALIDATE_RANGE_BIT)) {
|
||||
if (!intel_miptree_blit(brw,
|
||||
mt, level, slice,
|
||||
map->x, map->y, false,
|
||||
map->mt, 0, 0,
|
||||
0, 0, false,
|
||||
map->w, map->h, GL_COPY)) {
|
||||
fprintf(stderr, "Failed to blit\n");
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
|
||||
map->ptr = intel_miptree_map_raw(brw, map->mt);
|
||||
|
|
Loading…
Reference in New Issue