Mesa (master): gallium: add z24s8_as_r8g8b8a8 format
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Sat Jun 15 14:43:38 UTC 2019
Module: Mesa
Branch: master
Commit: 4c75d62ce863bf397d9db3c94ce7eb12f7aa9250
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4c75d62ce863bf397d9db3c94ce7eb12f7aa9250
Author: Rob Clark <robdclark at chromium.org>
Date: Wed Jun 12 12:03:58 2019 -0700
gallium: add z24s8_as_r8g8b8a8 format
This maps to a special format that recent generations of adreno have,
for blitting z24s8. Conceptually it is similar to doing Z and/or S
blits by pretending it is r8g8b8a8 (with appropriate writemask). But
it differs when bandwidth compression is used, as z24 is a different
type from r8g8b8.
Signed-off-by: Rob Clark <robdclark at chromium.org>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg at gmail.com>
---
src/gallium/auxiliary/util/u_format.csv | 7 +++++++
src/gallium/drivers/svga/svga_format.c | 1 +
src/gallium/include/pipe/p_format.h | 2 ++
3 files changed, 10 insertions(+)
diff --git a/src/gallium/auxiliary/util/u_format.csv b/src/gallium/auxiliary/util/u_format.csv
index 51a08bd6530..039b5fa9141 100644
--- a/src/gallium/auxiliary/util/u_format.csv
+++ b/src/gallium/auxiliary/util/u_format.csv
@@ -144,6 +144,13 @@ PIPE_FORMAT_X8Z24_UNORM , plain, 1, 1, x8 , un24, , , y___,
PIPE_FORMAT_Z32_FLOAT_S8X24_UINT , plain, 1, 1, f32 , up8 , x24, , xy__, zs, f32 , x24 , up8, , xz__
PIPE_FORMAT_X32_S8X24_UINT , plain, 1, 1, x32 , up8 , x24, , _y__, zs, x32 , x24 , up8, , _z__
+# Depth-stencil formats equivalent to blitting PIPE_FORMAT_Z24_UNORM_S8_UINT
+# as PIPE_FORMAT_R8G8B8A8_*, in that it is an equivalent size to the z/s
+# format. This is mainly for hw that has some sort of bandwidth compressed
+# format where the compression for z24s8 is not equivalent to r8g8b8a8,
+# and therefore some special handling is required for blits.
+PIPE_FORMAT_Z24_UNORM_S8_UINT_AS_R8G8B8A8 , plain, 1, 1, un8 , un8 , un8 , un8 , xyzw, rgb
+
# YUV formats
# http://www.fourcc.org/yuv.php#UYVY
PIPE_FORMAT_UYVY , subsampled, 2, 1, x32 , , , , xyz1, yuv
diff --git a/src/gallium/drivers/svga/svga_format.c b/src/gallium/drivers/svga/svga_format.c
index 830ff0a1e6b..84134018c17 100644
--- a/src/gallium/drivers/svga/svga_format.c
+++ b/src/gallium/drivers/svga/svga_format.c
@@ -378,6 +378,7 @@ static const struct vgpu10_format_entry format_conversion_table[] =
{ PIPE_FORMAT_ATC_RGB, SVGA3D_FORMAT_INVALID, SVGA3D_FORMAT_INVALID, SVGA3D_FORMAT_INVALID, 0 },
{ PIPE_FORMAT_ATC_RGBA_EXPLICIT, SVGA3D_FORMAT_INVALID, SVGA3D_FORMAT_INVALID, SVGA3D_FORMAT_INVALID, 0 },
{ PIPE_FORMAT_ATC_RGBA_INTERPOLATED, SVGA3D_FORMAT_INVALID, SVGA3D_FORMAT_INVALID, SVGA3D_FORMAT_INVALID, 0 },
+ { PIPE_FORMAT_Z24_UNORM_S8_UINT_AS_R8G8B8A8, SVGA3D_FORMAT_INVALID, SVGA3D_FORMAT_INVALID, SVGA3D_FORMAT_INVALID, 0 },
};
diff --git a/src/gallium/include/pipe/p_format.h b/src/gallium/include/pipe/p_format.h
index a4401658f5f..42908e9a720 100644
--- a/src/gallium/include/pipe/p_format.h
+++ b/src/gallium/include/pipe/p_format.h
@@ -407,6 +407,8 @@ enum pipe_format {
PIPE_FORMAT_ATC_RGBA_EXPLICIT = 318,
PIPE_FORMAT_ATC_RGBA_INTERPOLATED = 319,
+ PIPE_FORMAT_Z24_UNORM_S8_UINT_AS_R8G8B8A8 = 320,
+
PIPE_FORMAT_COUNT
};
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