diff options
| author | Rob Clark <robin.clark@oss.qualcomm.com> | 2025-06-25 10:37:11 -0700 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> | 2025-06-27 01:46:06 +0300 |
| commit | 3529cb5ab16b4f1f8bbc31dc39a1076a94bd1e38 (patch) | |
| tree | dc48e23677044887797db651553ef907b9c73cbd /include | |
| parent | drm/fourcc: Add missing half-float formats (diff) | |
| download | linux-3529cb5ab16b4f1f8bbc31dc39a1076a94bd1e38.tar.gz linux-3529cb5ab16b4f1f8bbc31dc39a1076a94bd1e38.zip | |
drm/fourcc: Add 32b float formats
Add 1, 2, 3, and 4 component 32b float formats, so that buffers with
these formats can be imported/exported with fourcc+modifier, and/or
created by gbm.
These correspond to PIPE_FORMAT_{R32,R32G32,R32G32B32,R32G32B32A32}_FLOAT
in mesa.
v2: Fix comment describing float32 layout [Sima]
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Acked-by: Simona Vetter <simona@ffwll.ch>
Acked-by: Daniel Stone <daniels@collabora.com>
Link: https://lore.kernel.org/r/20250625173712.116446-3-robin.clark@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/drm/drm_fourcc.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 89a82d02b7e8..0d375c5bfc9d 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -233,6 +233,16 @@ extern "C" { #define DRM_FORMAT_BGR161616F fourcc_code('B', 'G', 'R', 'H') /* [47:0] B:G:R 16:16:16 little endian */ /* + * Floating point - 32b/component + * IEEE 754-2008 binary32 float + * [31:0] sign:exponent:mantissa 1:8:23 + */ +#define DRM_FORMAT_R32F fourcc_code('R', ' ', ' ', 'F') /* [31:0] R 32 little endian */ +#define DRM_FORMAT_GR3232F fourcc_code('G', 'R', ' ', 'F') /* [63:0] R:G 32:32 little endian */ +#define DRM_FORMAT_BGR323232F fourcc_code('B', 'G', 'R', 'F') /* [95:0] R:G:B 32:32:32 little endian */ +#define DRM_FORMAT_ABGR32323232F fourcc_code('A', 'B', '8', 'F') /* [127:0] R:G:B:A 32:32:32:32 little endian */ + +/* * RGBA format with 10-bit components packed in 64-bit per pixel, with 6 bits * of unused padding per component: */ |