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/*
* Copyright 2011 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef DRM_FOURCC_H
#define DRM_FOURCC_H
#include "drm.h"
#if defined(__cplusplus)
extern "C" {
#endif
/**
* DOC: overview
*
* In the DRM subsystem, framebuffer pixel formats are described using the
* fourcc codes defined in `include/uapi/drm/drm_fourcc.h`. In addition to the
* fourcc code, a Format Modifier may optionally be provided, in order to
* further describe the buffer's format - for example tiling or compression.
*
* Format Modifiers
* ----------------
*
* Format modifiers are used in conjunction with a fourcc code, forming a
* unique fourcc:modifier pair. This format:modifier pair must fully define the
* format and data layout of the buffer, and should be the only way to describe
* that particular buffer.
*
* Having multiple fourcc:modifier pairs which describe the same layout should
* be avoided, as such aliases run the risk of different drivers exposing
* different names for the same data format, forcing userspace to understand
* that they are aliases.
*
* Format modifiers may change any property of the buffer, including the number
* of planes and/or the required allocation size. Format modifiers are
* vendor-namespaced, and as such the relationship between a fourcc code and a
* modifier is specific to the modifer being used. For example, some modifiers
* may preserve meaning - such as number of planes - from the fourcc code,
* whereas others may not.
*
* Vendors should document their modifier usage in as much detail as
* possible, to ensure maximum compatibility across devices, drivers and
* applications.
*
* The authoritative list of format modifier codes is found in
* `include/uapi/drm/drm_fourcc.h`
*/
#define fourcc_code(a, b, c, d) ((__u32)(a) | ((__u32)(b) << 8) | \
((__u32)(c) << 16) | ((__u32)(d) << 24))
#define DRM_FORMAT_BIG_ENDIAN (1<<31) /* format is big endian instead of little endian */
/* Reserve 0 for the invalid format specifier */
#define DRM_FORMAT_INVALID 0
/* color index */
#define DRM_FORMAT_C8 fourcc_code('C', '8', ' ', ' ') /* [7:0] C */
/* 8 bpp Red */
#define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
/* 16 bpp Red */
#define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R little endian */
/* 16 bpp RG */
#define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
#define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
/* 32 bpp RG */
#define DRM_FORMAT_RG1616 fourcc_code('R', 'G', '3', '2') /* [31:0] R:G 16:16 little endian */
#define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] G:R 16:16 little endian */
/* 8 bpp RGB */
#define DRM_FORMAT_RGB332 fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
#define DRM_FORMAT_BGR233 fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */
/* 16 bpp RGB */
#define DRM_FORMAT_XRGB4444 fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */
#define DRM_FORMAT_XBGR4444 fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */
#define DRM_FORMAT_RGBX4444 fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */
#define DRM_FORMAT_BGRX4444 fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */
#define DRM_FORMAT_ARGB4444 fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */
#define DRM_FORMAT_ABGR4444 fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */
#define DRM_FORMAT_RGBA4444 fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */
#define DRM_FORMAT_BGRA4444 fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */
#define DRM_FORMAT_XRGB1555 fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */
#define DRM_FORMAT_XBGR1555 fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */
#define DRM_FORMAT_RGBX5551 fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */
#define DRM_FORMAT_BGRX5551 fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */
#define DRM_FORMAT_ARGB1555 fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */
#define DRM_FORMAT_ABGR1555 fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */
#define DRM_FORMAT_RGBA5551 fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */
#define DRM_FORMAT_BGRA5551 fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */
#define DRM_FORMAT_RGB565 fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */
#define DRM_FORMAT_BGR565 fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */
/* 24 bpp RGB */
#define DRM_FORMAT_RGB888 fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */
#define DRM_FORMAT_BGR888 fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */
/* 32 bpp RGB */
#define DRM_FORMAT_XRGB8888 fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */
#define DRM_FORMAT_XBGR8888 fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */
#define DRM_FORMAT_RGBX8888 fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */
#define DRM_FORMAT_BGRX8888 fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */
#define DRM_FORMAT_ARGB8888 fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */
#define DRM_FORMAT_ABGR8888 fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */
#define DRM_FORMAT_RGBA8888 fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */
#define DRM_FORMAT_BGRA8888 fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */
#define DRM_FORMAT_XRGB2101010 fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */
#define DRM_FORMAT_XBGR2101010 fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */
#define DRM_FORMAT_RGBX1010102 fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */
#define DRM_FORMAT_BGRX1010102 fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */
#define DRM_FORMAT_ARGB2101010 fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */
#define DRM_FORMAT_ABGR2101010 fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */
#define DRM_FORMAT_RGBA1010102 fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
#define DRM_FORMAT_BGRA1010102 fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */
/* packed YCbCr */
#define DRM_FORMAT_YUYV fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */
#define DRM_FORMAT_YVYU fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
#define DRM_FORMAT_UYVY fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */
#define DRM_FORMAT_VYUY fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */
#define DRM_FORMAT_AYUV fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
#define DRM_FORMAT_XYUV8888 fourcc_code('X', 'Y', 'U', 'V') /* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian */
/*
* packed YCbCr420 2x2 tiled formats
* first 64 bits will contain Y,Cb,Cr components for a 2x2 tile
*/
/* [63:0] A3:A2:Y3:0:Cr0:0:Y2:0:A1:A0:Y1:0:Cb0:0:Y0:0 1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
#define DRM_FORMAT_Y0L0 fourcc_code('Y', '0', 'L', '0')
/* [63:0] X3:X2:Y3:0:Cr0:0:Y2:0:X1:X0:Y1:0:Cb0:0:Y0:0 1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
#define DRM_FORMAT_X0L0 fourcc_code('X', '0', 'L', '0')
/* [63:0] A3:A2:Y3:Cr0:Y2:A1:A0:Y1:Cb0:Y0 1:1:10:10:10:1:1:10:10:10 little endian */
#define DRM_FORMAT_Y0L2 fourcc_code('Y', '0', 'L', '2')
/* [63:0] X3:X2:Y3:Cr0:Y2:X1:X0:Y1:Cb0:Y0 1:1:10:10:10:1:1:10:10:10 little endian */
#define DRM_FORMAT_X0L2 fourcc_code('X', '0', 'L', '2')
/*
* 2 plane RGB + A
* index 0 = RGB plane, same format as the corresponding non _A8 format has
* index 1 = A plane, [7:0] A
*/
#define DRM_FORMAT_XRGB8888_A8 fourcc_code('X', 'R', 'A', '8')
#define DRM_FORMAT_XBGR8888_A8 fourcc_code('X', 'B', 'A', '8')
#define DRM_FORMAT_RGBX8888_A8 fourcc_code('R', 'X', 'A', '8')
#define DRM_FORMAT_BGRX8888_A8 fourcc_code('B', 'X', 'A', '8')
#define DRM_FORMAT_RGB888_A8 fourcc_code('R', '8', 'A', '8')
#define DRM_FORMAT_BGR888_A8 fourcc_code('B', '8', 'A', '8')
#define DRM_FORMAT_RGB565_A8 fourcc_code('R', '5', 'A', '8')
#define DRM_FORMAT_BGR565_A8 fourcc_code('B', '5', 'A', '8')
/*
* 2 plane YCbCr
* index 0 = Y plane, [7:0] Y
* index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian
* or
* index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian
*/
#define DRM_FORMAT_NV12 fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */
#define DRM_FORMAT_NV21 fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */
#define DRM_FORMAT_NV16 fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */
#define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
#define DRM_FORMAT_NV24 fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */
#define DRM_FORMAT_NV42 fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
/*
* 3 plane YCbCr
* index 0: Y plane, [7:0] Y
* index 1: Cb plane, [7:0] Cb
* index 2: Cr plane, [7:0] Cr
* or
* index 1: Cr plane, [7:0] Cr
* index 2: Cb plane, [7:0] Cb
*/
#define DRM_FORMAT_YUV410 fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU410 fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */
#define DRM_FORMAT_YUV411 fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU411 fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */
#define DRM_FORMAT_YUV420 fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU420 fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */
#define DRM_FORMAT_YUV422 fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU422 fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */
#define DRM_FORMAT_YUV444 fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */
#define DRM_FORMAT_YVU444 fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */
/*
* Format Modifiers:
*
* Format modifiers describe, typically, a re-ordering or modification
* of the data in a plane of an FB. This can be used to express tiled/
* swizzled formats, or compression, or a combination of the two.
*
* The upper 8 bits of the format modifier are a vendor-id as assigned
* below. The lower 56 bits are assigned as vendor sees fit.
*/
/* Vendor Ids: */
#define DRM_FORMAT_MOD_NONE 0
#define DRM_FORMAT_MOD_VENDOR_NONE 0
#define DRM_FORMAT_MOD_VENDOR_INTEL 0x01
#define DRM_FORMAT_MOD_VENDOR_AMD 0x02
#define DRM_FORMAT_MOD_VENDOR_NVIDIA 0x03
#define DRM_FORMAT_MOD_VENDOR_SAMSUNG 0x04
#define DRM_FORMAT_MOD_VENDOR_QCOM 0x05
#define DRM_FORMAT_MOD_VENDOR_VIVANTE 0x06
#define DRM_FORMAT_MOD_VENDOR_BROADCOM 0x07
#define DRM_FORMAT_MOD_VENDOR_ARM 0x08
/* add more to the end as needed */
#define DRM_FORMAT_RESERVED ((1ULL << 56) - 1)
#define fourcc_mod_code(vendor, val) \
((((__u64)DRM_FORMAT_MOD_VENDOR_## vendor) << 56) | ((val) & 0x00ffffffffffffffULL))
/*
* Format Modifier tokens:
*
* When adding a new token please document the layout with a code comment,
* similar to the fourcc codes above. drm_fourcc.h is considered the
* authoritative source for all of these.
*/
/*
* Invalid Modifier
*
* This modifier can be used as a sentinel to terminate the format modifiers
* list, or to initialize a variable with an invalid modifier. It might also be
* used to report an error back to userspace for certain APIs.
*/
#define DRM_FORMAT_MOD_INVALID fourcc_mod_code(NONE, DRM_FORMAT_RESERVED)
/*
* Linear Layout
*
* Just plain linear layout. Note that this is different from no specifying any
* modifier (e.g. not setting DRM_MODE_FB_MODIFIERS in the DRM_ADDFB2 ioctl),
* which tells the driver to also take driver-internal information into account
* and so might actually result in a tiled framebuffer.
*/
#define DRM_FORMAT_MOD_LINEAR fourcc_mod_code(NONE, 0)
/* Intel framebuffer modifiers */
/*
* Intel X-tiling layout
*
* This is a tiled layout using 4Kb tiles (except on gen2 where the tiles 2Kb)
* in row-major layout. Within the tile bytes are laid out row-major, with
* a platform-dependent stride. On top of that the memory can apply
* platform-depending swizzling of some higher address bits into bit6.
*
* This format is highly platforms specific and not useful for cross-driver
* sharing. It exists since on a given platform it does uniquely identify the
* layout in a simple way for i915-specific userspace.
*/
#define I915_FORMAT_MOD_X_TILED fourcc_mod_code(INTEL, 1)
/*
* Intel Y-tiling layout
*
* This is a tiled layout using 4Kb tiles (except on gen2 where the tiles 2Kb)
* in row-major layout. Within the tile bytes are laid out in OWORD (16 bytes)
* chunks column-major, with a platform-dependent height. On top of that the
* memory can apply platform-depending swizzling of some higher address bits
* into bit6.
*
* This format is highly platforms specific and not useful for cross-driver
* sharing. It exists since on a given platform it does uniquely identify the
* layout in a simple way for i915-specific userspace.
*/
#define I915_FORMAT_MOD_Y_TILED fourcc_mod_code(INTEL, 2)
/*
* Intel Yf-tiling layout
*
* This is a tiled layout using 4Kb tiles in row-major layout.
* Within the tile pixels are laid out in 16 256 byte units / sub-tiles which
* are arranged in four groups (two wide, two high) with column-major layout.
* Each group therefore consits out of four 256 byte units, which are also laid
* out as 2x2 column-major.
* 256 byte units are made out of four 64 byte blocks of pixels, producing
* either a square block or a 2:1 unit.
* 64 byte blocks of pixels contain four pixel rows of 16 bytes, where the width
* in pixel depends on the pixel depth.
*/
#define I915_FORMAT_MOD_Yf_TILED fourcc_mod_code(INTEL, 3)
/*
* Intel color control surface (CCS) for render compression
*
* The framebuffer format must be one of the 8:8:8:8 RGB formats.
* The main surface will be plane index 0 and must be Y/Yf-tiled,
* the CCS will be plane index 1.
*
* Each CCS tile matches a 1024x512 pixel area of the main surface.
* To match certain aspects of the 3D hardware the CCS is
* considered to be made up of normal 128Bx32 Y tiles, Thus
* the CCS pitch must be specified in multiples of 128 bytes.
*
* In reality the CCS tile appears to be a 64Bx64 Y tile, composed
* of QWORD (8 bytes) chunks instead of OWORD (16 bytes) chunks.
* But that fact is not relevant unless the memory is accessed
* directly.
*/
#define I915_FORMAT_MOD_Y_TILED_CCS fourcc_mod_code(INTEL, 4)
#define I915_FORMAT_MOD_Yf_TILED_CCS fourcc_mod_code(INTEL, 5)
/*
* Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks
*
* Macroblocks are laid in a Z-shape, and each pixel data is following the
* standard NV12 style.
* As for NV12, an image is the result of two frame buffers: one for Y,
* one for the interleaved Cb/Cr components (1/2 the height of the Y buffer).
* Alignment requirements are (for each buffer):
* - multiple of 128 pixels for the width
* - multiple of 32 pixels for the height
*
* For more information: see https://linuxtv.org/downloads/v4l-dvb-apis/re32.html
*/
#define DRM_FORMAT_MOD_SAMSUNG_64_32_TILE fourcc_mod_code(SAMSUNG, 1)
/*
* Tiled, 16 (pixels) x 16 (lines) - sized macroblocks
*
* This is a simple tiled layout using tiles of 16x16 pixels in a row-major
* layout. For YCbCr formats Cb/Cr components are taken in such a way that
* they correspond to their 16x16 luma block.
*/
#define DRM_FORMAT_MOD_SAMSUNG_16_16_TILE fourcc_mod_code(SAMSUNG, 2)
/*
* Qualcomm Compressed Format
*
* Refers to a compressed variant of the base format that is compressed.
* Implementation may be platform and base-format specific.
*
* Each macrotile consists of m x n (mostly 4 x 4) tiles.
* Pixel data pitch/stride is aligned with macrotile width.
* Pixel data height is aligned with macrotile height.
* Entire pixel data buffer is aligned with 4k(bytes).
*/
#define DRM_FORMAT_MOD_QCOM_COMPRESSED fourcc_mod_code(QCOM, 1)
/* Vivante framebuffer modifiers */
/*
* Vivante 4x4 tiling layout
*
* This is a simple tiled layout using tiles of 4x4 pixels in a row-major
* layout.
*/
#define DRM_FORMAT_MOD_VIVANTE_TILED fourcc_mod_code(VIVANTE, 1)
/*
* Vivante 64x64 super-tiling layout
*
* This is a tiled layout using 64x64 pixel super-tiles, where each super-tile
* contains 8x4 groups of 2x4 tiles of 4x4 pixels (like above) each, all in row-
* major layout.
*
* For more information: see
* https://github.com/etnaviv/etna_viv/blob/master/doc/hardware.md#texture-tiling
*/
#define DRM_FORMAT_MOD_VIVANTE_SUPER_TILED fourcc_mod_code(VIVANTE, 2)
/*
* Vivante 4x4 tiling layout for dual-pipe
*
* Same as the 4x4 tiling layout, except every second 4x4 pixel tile starts at a
* different base address. Offsets from the base addresses are therefore halved
* compared to the non-split tiled layout.
*/
#define DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED fourcc_mod_code(VIVANTE, 3)
/*
* Vivante 64x64 super-tiling layout for dual-pipe
*
* Same as the 64x64 super-tiling layout, except every second 4x4 pixel tile
* starts at a different base address. Offsets from the base addresses are
* therefore halved compared to the non-split super-tiled layout.
*/
#define DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED fourcc_mod_code(VIVANTE, 4)
/* NVIDIA frame buffer modifiers */
/*
* Tegra Tiled Layout, used by Tegra 2, 3 and 4.
*
* Pixels are arranged in simple tiles of 16 x 16 bytes.
*/
#define DRM_FORMAT_MOD_NVIDIA_TEGRA_TILED fourcc_mod_code(NVIDIA, 1)
/*
* 16Bx2 Block Linear layout, used by desktop GPUs, and Tegra K1 and later
*
* Pixels are arranged in 64x8 Groups Of Bytes (GOBs). GOBs are then stacked
* vertically by a power of 2 (1 to 32 GOBs) to form a block.
*
* Within a GOB, data is ordered as 16B x 2 lines sectors laid in Z-shape.
*
* Parameter 'v' is the log2 encoding of the number of GOBs stacked vertically.
* Valid values are:
*
* 0 == ONE_GOB
* 1 == TWO_GOBS
* 2 == FOUR_GOBS
* 3 == EIGHT_GOBS
* 4 == SIXTEEN_GOBS
* 5 == THIRTYTWO_GOBS
*
* Chapter 20 "Pixel Memory Formats" of the Tegra X1 TRM describes this format
* in full detail.
*/
#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(v) \
fourcc_mod_code(NVIDIA, 0x10 | ((v) & 0xf))
#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_ONE_GOB \
fourcc_mod_code(NVIDIA, 0x10)
#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_TWO_GOB \
fourcc_mod_code(NVIDIA, 0x11)
#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_FOUR_GOB \
fourcc_mod_code(NVIDIA, 0x12)
#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_EIGHT_GOB \
fourcc_mod_code(NVIDIA, 0x13)
#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_SIXTEEN_GOB \
fourcc_mod_code(NVIDIA, 0x14)
#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_THIRTYTWO_GOB \
fourcc_mod_code(NVIDIA, 0x15)
/*
* Some Broadcom modifiers take parameters, for example the number of
* vertical lines in the image. Reserve the lower 32 bits for modifier
* type, and the next 24 bits for parameters. Top 8 bits are the
* vendor code.
*/
#define __fourcc_mod_broadcom_param_shift 8
#define __fourcc_mod_broadcom_param_bits 48
#define fourcc_mod_broadcom_code(val, params) \
fourcc_mod_code(BROADCOM, ((((__u64)params) << __fourcc_mod_broadcom_param_shift) | val))
#define fourcc_mod_broadcom_param(m) \
((int)(((m) >> __fourcc_mod_broadcom_param_shift) & \
((1ULL << __fourcc_mod_broadcom_param_bits) - 1)))
#define fourcc_mod_broadcom_mod(m) \
((m) & ~(((1ULL << __fourcc_mod_broadcom_param_bits) - 1) << \
__fourcc_mod_broadcom_param_shift))
/*
* Broadcom VC4 "T" format
*
* This is the primary layout that the V3D GPU can texture from (it
* can't do linear). The T format has:
*
* - 64b utiles of pixels in a raster-order grid according to cpp. It's 4x4
* pixels at 32 bit depth.
*
* - 1k subtiles made of a 4x4 raster-order grid of 64b utiles (so usually
* 16x16 pixels).
*
* - 4k tiles made of a 2x2 grid of 1k subtiles (so usually 32x32 pixels). On
* even 4k tile rows, they're arranged as (BL, TL, TR, BR), and on odd rows
* they're (TR, BR, BL, TL), where bottom left is start of memory.
*
* - an image made of 4k tiles in rows either left-to-right (even rows of 4k
* tiles) or right-to-left (odd rows of 4k tiles).
*/
#define DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED fourcc_mod_code(BROADCOM, 1)
/*
* Broadcom SAND format
*
* This is the native format that the H.264 codec block uses. For VC4
* HVS, it is only valid for H.264 (NV12/21) and RGBA modes.
*
* The image can be considered to be split into columns, and the
* columns are placed consecutively into memory. The width of those
* columns can be either 32, 64, 128, or 256 pixels, but in practice
* only 128 pixel columns are used.
*
* The pitch between the start of each column is set to optimally
* switch between SDRAM banks. This is passed as the number of lines
* of column width in the modifier (we can't use the stride value due
* to various core checks that look at it , so you should set the
* stride to width*cpp).
*
* Note that the column height for this format modifier is the same
* for all of the planes, assuming that each column contains both Y
* and UV. Some SAND-using hardware stores UV in a separate tiled
* image from Y to reduce the column height, which is not supported
* with these modifiers.
*/
#define DRM_FORMAT_MOD_BROADCOM_SAND32_COL_HEIGHT(v) \
fourcc_mod_broadcom_code(2, v)
#define DRM_FORMAT_MOD_BROADCOM_SAND64_COL_HEIGHT(v) \
fourcc_mod_broadcom_code(3, v)
#define DRM_FORMAT_MOD_BROADCOM_SAND128_COL_HEIGHT(v) \
fourcc_mod_broadcom_code(4, v)
#define DRM_FORMAT_MOD_BROADCOM_SAND256_COL_HEIGHT(v) \
fourcc_mod_broadcom_code(5, v)
#define DRM_FORMAT_MOD_BROADCOM_SAND32 \
DRM_FORMAT_MOD_BROADCOM_SAND32_COL_HEIGHT(0)
#define DRM_FORMAT_MOD_BROADCOM_SAND64 \
DRM_FORMAT_MOD_BROADCOM_SAND64_COL_HEIGHT(0)
#define DRM_FORMAT_MOD_BROADCOM_SAND128 \
DRM_FORMAT_MOD_BROADCOM_SAND128_COL_HEIGHT(0)
#define DRM_FORMAT_MOD_BROADCOM_SAND256 \
DRM_FORMAT_MOD_BROADCOM_SAND256_COL_HEIGHT(0)
/* Broadcom UIF format
*
* This is the common format for the current Broadcom multimedia
* blocks, including V3D 3.x and newer, newer video codecs, and
* displays.
*
* The image consists of utiles (64b blocks), UIF blocks (2x2 utiles),
* and macroblocks (4x4 UIF blocks). Those 4x4 UIF block groups are
* stored in columns, with padding between the columns to ensure that
* moving from one column to the next doesn't hit the same SDRAM page
* bank.
*
* To calculate the padding, it is assumed that each hardware block
* and the software driving it knows the platform's SDRAM page size,
* number of banks, and XOR address, and that it's identical between
* all blocks using the format. This tiling modifier will use XOR as
* necessary to reduce the padding. If a hardware block can't do XOR,
* the assumption is that a no-XOR tiling modifier will be created.
*/
#define DRM_FORMAT_MOD_BROADCOM_UIF fourcc_mod_code(BROADCOM, 6)
/*
* Arm Framebuffer Compression (AFBC) modifiers
*
* AFBC is a proprietary lossless image compression protocol and format.
* It provides fine-grained random access and minimizes the amount of data
* transferred between IP blocks.
*
* AFBC has several features which may be supported and/or used, which are
* represented using bits in the modifier. Not all combinations are valid,
* and different devices or use-cases may support different combinations.
*/
#define DRM_FORMAT_MOD_ARM_AFBC(__afbc_mode) fourcc_mod_code(ARM, __afbc_mode)
/*
* AFBC superblock size
*
* Indicates the superblock size(s) used for the AFBC buffer. The buffer
* size (in pixels) must be aligned to a multiple of the superblock size.
* Four lowest significant bits(LSBs) are reserved for block size.
*/
#define AFBC_FORMAT_MOD_BLOCK_SIZE_MASK 0xf
#define AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 (1ULL)
#define AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 (2ULL)
/*
* AFBC lossless colorspace transform
*
* Indicates that the buffer makes use of the AFBC lossless colorspace
* transform.
*/
#define AFBC_FORMAT_MOD_YTR (1ULL << 4)
/*
* AFBC block-split
*
* Indicates that the payload of each superblock is split. The second
* half of the payload is positioned at a predefined offset from the start
* of the superblock payload.
*/
#define AFBC_FORMAT_MOD_SPLIT (1ULL << 5)
/*
* AFBC sparse layout
*
* This flag indicates that the payload of each superblock must be stored at a
* predefined position relative to the other superblocks in the same AFBC
* buffer. This order is the same order used by the header buffer. In this mode
* each superblock is given the same amount of space as an uncompressed
* superblock of the particular format would require, rounding up to the next
* multiple of 128 bytes in size.
*/
#define AFBC_FORMAT_MOD_SPARSE (1ULL << 6)
/*
* AFBC copy-block restrict
*
* Buffers with this flag must obey the copy-block restriction. The restriction
* is such that there are no copy-blocks referring across the border of 8x8
* blocks. For the subsampled data the 8x8 limitation is also subsampled.
*/
#define AFBC_FORMAT_MOD_CBR (1ULL << 7)
/*
* AFBC tiled layout
*
* The tiled layout groups superblocks in 8x8 or 4x4 tiles, where all
* superblocks inside a tile are stored together in memory. 8x8 tiles are used
* for pixel formats up to and including 32 bpp while 4x4 tiles are used for
* larger bpp formats. The order between the tiles is scan line.
* When the tiled layout is used, the buffer size (in pixels) must be aligned
* to the tile size.
*/
#define AFBC_FORMAT_MOD_TILED (1ULL << 8)
/*
* AFBC solid color blocks
*
* Indicates that the buffer makes use of solid-color blocks, whereby bandwidth
* can be reduced if a whole superblock is a single color.
*/
#define AFBC_FORMAT_MOD_SC (1ULL << 9)
#if defined(__cplusplus)
}
#endif
#endif /* DRM_FOURCC_H */
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