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authorNanley Chery <[email protected]>2017-12-01 14:18:21 -0800
committerNanley Chery <[email protected]>2017-12-04 14:21:47 -0800
commit0a257b3fe4d184811c1ddab7afeda81459f36720 (patch)
tree2ee5213a6a663a1a3c9d708bf3ae8fd4135105e7
parent6a9611763b698e998deaab45ce35751173b088fd (diff)
i965/cnl: Avoid fast-clearing sRGB render buffers
Gen10 doesn't automatically decode the clear color of sRGB buffers. To get correct rendering, avoid fast-clearing such buffers for now. The driver now passes the following piglit tests: * spec@arb_framebuffer_srgb@msaa-fast-clear * spec@ext_texture_srgb@multisample-fast-clear gl_ext_texture_srgb Suggested-by: Kenneth Graunke <[email protected]> Suggested-by: Jason Ekstrand <[email protected]> Signed-off-by: Nanley Chery <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
-rw-r--r--src/mesa/drivers/dri/i965/brw_meta_util.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_meta_util.c b/src/mesa/drivers/dri/i965/brw_meta_util.c
index ba92168934e..54dc6a5ff9a 100644
--- a/src/mesa/drivers/dri/i965/brw_meta_util.c
+++ b/src/mesa/drivers/dri/i965/brw_meta_util.c
@@ -298,13 +298,23 @@ brw_is_color_fast_clear_compatible(struct brw_context *brw,
* resolved in intel_update_state. In that case it's pointless to do a
* fast clear because it's very likely to be immediately resolved.
*/
+ const bool srgb_rb = _mesa_get_srgb_format_linear(mt->format) != mt->format;
if (devinfo->gen >= 9 &&
mt->surf.samples == 1 &&
- ctx->Color.sRGBEnabled &&
- _mesa_get_srgb_format_linear(mt->format) != mt->format)
+ ctx->Color.sRGBEnabled && srgb_rb)
return false;
+ /* Gen10 doesn't automatically decode the clear color of sRGB buffers. Since
+ * we currently don't perform this decode in software, avoid a fast-clear
+ * altogether. TODO: Do this in software.
+ */
const mesa_format format = _mesa_get_render_format(ctx, mt->format);
+ if (devinfo->gen >= 10 && srgb_rb) {
+ perf_debug("sRGB fast clear not enabled for (%s)",
+ _mesa_get_format_name(format));
+ return false;
+ }
+
if (_mesa_is_format_integer_color(format)) {
if (devinfo->gen >= 8) {
perf_debug("Integer fast clear not enabled for (%s)",