KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i965/miptree: Add new clear color BO for winsys aux buffers 

Add an extra BO to store clear color when we receive the aux buffer from
the window system. Since we have no control over the aux buffer size in
this case, we need the new BO to store only the clear color.

v5:
 - Better subject (Jordan).
 - Drop alignment from brw_bo_alloc().

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Rafael Antognolli 2018-02-28 16:11:34 -08:00
parent ab633c2d61
commit 8735c86ce0
1 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/mesa/drivers/dri/i965/intel_mipmap_tree.c
View File

@ -969,6 +969,23 @@ create_ccs_buf_for_image(struct brw_context *brw,
return false;
}
/* On gen10+ we start using an extra space in the aux buffer to store the
* indirect clear color. However, if we imported an image from the window
* system with CCS, we don't have the extra space at the end of the aux
* buffer. So create a new bo here that will store that clear color.
*/
const struct gen_device_info *devinfo = &brw->screen->devinfo;
if (devinfo->gen >= 10) {
mt->mcs_buf->clear_color_bo =
brw_bo_alloc(brw->bufmgr, "clear_color_bo",
brw->isl_dev.ss.clear_color_state_size);
if (!mt->mcs_buf->clear_color_bo) {
free(mt->mcs_buf);
mt->mcs_buf = NULL;
return false;
}
}
mt->mcs_buf->bo = image->bo;
brw_bo_reference(image->bo);