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intel/blorp: Handle clearing of A4B4G4R4 on all platforms

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Tested-by: Mark Janes <mark.a.janes@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Jason Ekstrand
2017-01-27 12:32:05 -08:00
parent 226a2c6d6e
commit a0348b5a0b
1 changed files with 23 additions and 0 deletions
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23
src/intel/blorp/blorp_clear.c
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@@ -349,6 +349,29 @@ blorp_clear(struct blorp_batch *batch,
if (format == ISL_FORMAT_R9G9B9E5_SHAREDEXP) {
clear_color.u32[0] = float3_to_rgb9e5(clear_color.f32);
format = ISL_FORMAT_R32_UINT;
} else if (format == ISL_FORMAT_A4B4G4R4_UNORM) {
/* Broadwell and earlier cannot render to this format so we need to work
* around it by swapping the colors around and using B4G4R4A4 instead.
*/
/* First, we apply the swizzle. */
union isl_color_value old;
assert((unsigned)(swizzle.r - ISL_CHANNEL_SELECT_RED) < 4);
assert((unsigned)(swizzle.g - ISL_CHANNEL_SELECT_RED) < 4);
assert((unsigned)(swizzle.b - ISL_CHANNEL_SELECT_RED) < 4);
assert((unsigned)(swizzle.a - ISL_CHANNEL_SELECT_RED) < 4);
old.u32[swizzle.r - ISL_CHANNEL_SELECT_RED] = clear_color.u32[0];
old.u32[swizzle.g - ISL_CHANNEL_SELECT_RED] = clear_color.u32[1];
old.u32[swizzle.b - ISL_CHANNEL_SELECT_RED] = clear_color.u32[2];
old.u32[swizzle.a - ISL_CHANNEL_SELECT_RED] = clear_color.u32[3];
swizzle = ISL_SWIZZLE_IDENTITY;
/* Now we re-order for the new format */
clear_color.u32[0] = old.u32[1];
clear_color.u32[1] = old.u32[2];
clear_color.u32[2] = old.u32[3];
clear_color.u32[3] = old.u32[0];
format = ISL_FORMAT_B4G4R4A4_UNORM;
}
memcpy(&params.wm_inputs.clear_color, clear_color.f32, sizeof(float) * 4);