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charset="utf-8" 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 Acked-by: Simona Vetter Acked-by: Daniel Stone --- include/uapi/drm/drm_fourcc.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 3560ca1ffb8b..6a3f1b32cb30 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -232,6 +232,16 @@ extern "C" { #define DRM_FORMAT_GR1616F fourcc_code('G', 'R', ' ', 'H') /* [31:0]= G:R 16:16 little endian */ #define DRM_FORMAT_BGR161616F fourcc_code('B', 'G', 'R', 'H') /* [47:0]= B:G:R 16:16:16 little endian */ =20 +/* + * 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 b= its * of unused padding per component: --=20 2.49.0