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i965: Allow fast clear to be used with lossless compression

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v2 (Ben): Use combination of msaa_layout and number of samples
          instead of introducing explicit type for lossless
          compression.
v3 (Ben): Squash with "i965: Resolve color buffer also in
          lossless compression case" and clarify simple
          non-compressed fast clear case.

Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Ben Widawsky <benjamin.widawsky@intel.com>
This commit is contained in:
Topi Pohjolainen 2015-12-07 12:23:04 +02:00
parent 4b801116d3
commit 0e79bff957
2 changed files with 6 additions and 2 deletions
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4
src/mesa/drivers/dri/i965/brw_meta_fast_clear.c
View file

@ -228,7 +228,9 @@ get_fast_clear_rect(struct brw_context *brw, struct gl_framebuffer *fb,
unsigned int x_align, y_align;
unsigned int x_scaledown, y_scaledown;
if (irb->mt->msaa_layout == INTEL_MSAA_LAYOUT_NONE) {
/* Only single sampled surfaces need to (and actually can) be resolved. */
if (irb->mt->msaa_layout == INTEL_MSAA_LAYOUT_NONE ||
intel_miptree_is_lossless_compressed(brw, irb->mt)) {
/* From the Ivy Bridge PRM, Vol2 Part1 11.7 "MCS Buffer for Render
* Target(s)", beneath the "Fast Color Clear" bullet (p327):
*

4
src/mesa/drivers/dri/i965/intel_mipmap_tree.c
View file

@ -2051,8 +2051,10 @@ intel_miptree_resolve_color(struct brw_context *brw,
case INTEL_FAST_CLEAR_STATE_UNRESOLVED:
case INTEL_FAST_CLEAR_STATE_CLEAR:
/* Fast color clear resolves only make sense for non-MSAA buffers. */
if (mt->msaa_layout == INTEL_MSAA_LAYOUT_NONE)
if (mt->msaa_layout == INTEL_MSAA_LAYOUT_NONE ||
intel_miptree_is_lossless_compressed(brw, mt)) {
brw_meta_resolve_color(brw, mt);
}
break;
}
}