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443 lines
16 KiB
443 lines
16 KiB
/* |
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* Copyright © 2011 Intel Corporation |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice (including the next |
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* paragraph) shall be included in all copies or substantial portions of the |
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* Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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* DEALINGS IN THE SOFTWARE. |
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* |
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* Authors: |
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* Benjamin Franzke <benjaminfranzke@googlemail.com> |
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*/ |
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#ifndef _GBM_H_ |
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#define _GBM_H_ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#define __GBM__ 1 |
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#include <stddef.h> |
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#include <stdint.h> |
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/** |
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* \file gbm.h |
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* \brief Generic Buffer Manager |
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*/ |
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struct gbm_device; |
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struct gbm_bo; |
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struct gbm_surface; |
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/** |
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* \mainpage The Generic Buffer Manager |
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* |
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* This module provides an abstraction that the caller can use to request a |
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* buffer from the underlying memory management system for the platform. |
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* |
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* This allows the creation of portable code whilst still allowing access to |
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* the underlying memory manager. |
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*/ |
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/** |
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* Abstraction representing the handle to a buffer allocated by the |
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* manager |
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*/ |
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union gbm_bo_handle { |
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void *ptr; |
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int32_t s32; |
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uint32_t u32; |
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int64_t s64; |
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uint64_t u64; |
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}; |
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#define GBM_MAX_PLANES 4 |
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#define __gbm_fourcc_code(a,b,c,d) ((uint32_t)(a) | ((uint32_t)(b) << 8) | \ |
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((uint32_t)(c) << 16) | ((uint32_t)(d) << 24)) |
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#define GBM_FORMAT_BIG_ENDIAN (1<<31) /* format is big endian instead of little endian */ |
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/* color index */ |
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#define GBM_FORMAT_C8 __gbm_fourcc_code('C', '8', ' ', ' ') /* [7:0] C */ |
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/* 8 bpp Red */ |
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#define GBM_FORMAT_R8 __gbm_fourcc_code('R', '8', ' ', ' ') /* [7:0] R */ |
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/* 16 bpp RG */ |
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#define GBM_FORMAT_RG88 __gbm_fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */ |
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#define GBM_FORMAT_GR88 __gbm_fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */ |
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/* 8 bpp RGB */ |
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#define GBM_FORMAT_RGB332 __gbm_fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */ |
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#define GBM_FORMAT_BGR233 __gbm_fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */ |
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/* 16 bpp RGB */ |
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#define GBM_FORMAT_XRGB4444 __gbm_fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */ |
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#define GBM_FORMAT_XBGR4444 __gbm_fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */ |
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#define GBM_FORMAT_RGBX4444 __gbm_fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */ |
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#define GBM_FORMAT_BGRX4444 __gbm_fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */ |
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#define GBM_FORMAT_ARGB4444 __gbm_fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */ |
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#define GBM_FORMAT_ABGR4444 __gbm_fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */ |
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#define GBM_FORMAT_RGBA4444 __gbm_fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */ |
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#define GBM_FORMAT_BGRA4444 __gbm_fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */ |
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#define GBM_FORMAT_XRGB1555 __gbm_fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */ |
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#define GBM_FORMAT_XBGR1555 __gbm_fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */ |
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#define GBM_FORMAT_RGBX5551 __gbm_fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */ |
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#define GBM_FORMAT_BGRX5551 __gbm_fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */ |
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#define GBM_FORMAT_ARGB1555 __gbm_fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */ |
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#define GBM_FORMAT_ABGR1555 __gbm_fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */ |
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#define GBM_FORMAT_RGBA5551 __gbm_fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */ |
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#define GBM_FORMAT_BGRA5551 __gbm_fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */ |
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#define GBM_FORMAT_RGB565 __gbm_fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */ |
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#define GBM_FORMAT_BGR565 __gbm_fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */ |
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/* 24 bpp RGB */ |
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#define GBM_FORMAT_RGB888 __gbm_fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */ |
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#define GBM_FORMAT_BGR888 __gbm_fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */ |
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/* 32 bpp RGB */ |
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#define GBM_FORMAT_XRGB8888 __gbm_fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */ |
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#define GBM_FORMAT_XBGR8888 __gbm_fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */ |
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#define GBM_FORMAT_RGBX8888 __gbm_fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */ |
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#define GBM_FORMAT_BGRX8888 __gbm_fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */ |
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#define GBM_FORMAT_ARGB8888 __gbm_fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */ |
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#define GBM_FORMAT_ABGR8888 __gbm_fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */ |
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#define GBM_FORMAT_RGBA8888 __gbm_fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */ |
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#define GBM_FORMAT_BGRA8888 __gbm_fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */ |
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#define GBM_FORMAT_XRGB2101010 __gbm_fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */ |
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#define GBM_FORMAT_XBGR2101010 __gbm_fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */ |
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#define GBM_FORMAT_RGBX1010102 __gbm_fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */ |
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#define GBM_FORMAT_BGRX1010102 __gbm_fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */ |
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#define GBM_FORMAT_ARGB2101010 __gbm_fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */ |
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#define GBM_FORMAT_ABGR2101010 __gbm_fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */ |
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#define GBM_FORMAT_RGBA1010102 __gbm_fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */ |
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#define GBM_FORMAT_BGRA1010102 __gbm_fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */ |
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/* packed YCbCr */ |
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#define GBM_FORMAT_YUYV __gbm_fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */ |
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#define GBM_FORMAT_YVYU __gbm_fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */ |
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#define GBM_FORMAT_UYVY __gbm_fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */ |
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#define GBM_FORMAT_VYUY __gbm_fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */ |
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#define GBM_FORMAT_AYUV __gbm_fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */ |
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/* |
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* 2 plane YCbCr |
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* index 0 = Y plane, [7:0] Y |
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* index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian |
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* or |
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* index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian |
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*/ |
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#define GBM_FORMAT_NV12 __gbm_fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */ |
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#define GBM_FORMAT_NV21 __gbm_fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */ |
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#define GBM_FORMAT_NV16 __gbm_fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */ |
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#define GBM_FORMAT_NV61 __gbm_fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */ |
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/* |
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* 3 plane YCbCr |
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* index 0: Y plane, [7:0] Y |
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* index 1: Cb plane, [7:0] Cb |
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* index 2: Cr plane, [7:0] Cr |
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* or |
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* index 1: Cr plane, [7:0] Cr |
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* index 2: Cb plane, [7:0] Cb |
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*/ |
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#define GBM_FORMAT_YUV410 __gbm_fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */ |
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#define GBM_FORMAT_YVU410 __gbm_fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */ |
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#define GBM_FORMAT_YUV411 __gbm_fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */ |
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#define GBM_FORMAT_YVU411 __gbm_fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */ |
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#define GBM_FORMAT_YUV420 __gbm_fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */ |
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#define GBM_FORMAT_YVU420 __gbm_fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */ |
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#define GBM_FORMAT_YUV422 __gbm_fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */ |
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#define GBM_FORMAT_YVU422 __gbm_fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */ |
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#define GBM_FORMAT_YUV444 __gbm_fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */ |
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#define GBM_FORMAT_YVU444 __gbm_fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */ |
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/* |
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* Format Modifiers: |
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* |
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* Format modifiers describe, typically, a re-ordering or modification |
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* of the data in a plane of an FB. This can be used to express tiled/ |
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* swizzled formats, or compression, or a combination of the two. |
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* |
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* The upper 8 bits of the format modifier are a vendor-id as assigned |
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* below. The lower 56 bits are assigned as vendor sees fit. |
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*/ |
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/* Vendor Ids: */ |
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#define GBM_FORMAT_MOD_NONE 0 |
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#define GBM_FORMAT_MOD_VENDOR_INTEL 0x01 |
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#define GBM_FORMAT_MOD_VENDOR_AMD 0x02 |
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#define GBM_FORMAT_MOD_VENDOR_NV 0x03 |
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#define GBM_FORMAT_MOD_VENDOR_SAMSUNG 0x04 |
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#define GBM_FORMAT_MOD_VENDOR_QCOM 0x05 |
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/* add more to the end as needed */ |
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#define gbm_fourcc_mod_code(vendor, val) \ |
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((((__u64)GBM_FORMAT_MOD_VENDOR_## vendor) << 56) | (val & 0x00ffffffffffffffULL)) |
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/** |
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* Flags to indicate the intended use for the buffer - these are passed into |
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* gbm_bo_create(). The caller must set the union of all the flags that are |
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* appropriate |
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* |
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* \sa Use gbm_device_is_format_supported() to check if the combination of format |
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* and use flags are supported |
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*/ |
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enum gbm_bo_flags { |
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/** |
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* Buffer is going to be presented to the screen using an API such as KMS |
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*/ |
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GBM_BO_USE_SCANOUT = (1 << 0), |
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/** |
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* Buffer is going to be used as cursor |
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*/ |
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GBM_BO_USE_CURSOR = (1 << 1), |
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/** |
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* Deprecated |
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*/ |
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GBM_BO_USE_CURSOR_64X64 = GBM_BO_USE_CURSOR, |
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/** |
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* Buffer is to be used for rendering - for example it is going to be used |
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* as the storage for a color buffer |
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*/ |
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GBM_BO_USE_RENDERING = (1 << 2), |
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/** |
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* Deprecated |
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*/ |
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GBM_BO_USE_WRITE = (1 << 3), |
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/** |
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* Buffer is guaranteed to be laid out linearly in memory. That is, the |
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* buffer is laid out as an array with 'height' blocks, each block with |
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* length 'stride'. Each stride is in the same order as the rows of the |
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* buffer. This is intended to be used with buffers that will be accessed |
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* via dma-buf mmap(). |
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*/ |
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GBM_BO_USE_LINEAR = (1 << 4), |
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/** |
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* The buffer will be used as a texture that will be sampled from. |
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*/ |
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GBM_BO_USE_TEXTURING = (1 << 5), |
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/** |
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* The buffer will be written to by a camera subsystem. |
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*/ |
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GBM_BO_USE_CAMERA_WRITE = (1 << 6), |
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/** |
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* The buffer will be read from by a camera subsystem. |
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*/ |
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GBM_BO_USE_CAMERA_READ = (1 << 7), |
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/** |
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* Buffer inaccessible to unprivileged users. |
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*/ |
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GBM_BO_USE_PROTECTED = (1 << 8), |
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/** |
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* These flags specify the frequency of software access. These flags do not |
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* guarantee the buffer is linear, but do guarantee gbm_bo_map(..) will |
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* present a linear view. |
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*/ |
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GBM_BO_USE_SW_READ_OFTEN = (1 << 9), |
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GBM_BO_USE_SW_READ_RARELY = (1 << 10), |
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GBM_BO_USE_SW_WRITE_OFTEN = (1 << 11), |
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GBM_BO_USE_SW_WRITE_RARELY = (1 << 12), |
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/** |
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* The buffer will be written by a video decode accelerator. |
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*/ |
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GBM_BO_USE_HW_VIDEO_DECODER = (1 << 13), |
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}; |
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int |
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gbm_device_get_fd(struct gbm_device *gbm); |
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const char * |
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gbm_device_get_backend_name(struct gbm_device *gbm); |
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int |
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gbm_device_is_format_supported(struct gbm_device *gbm, |
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uint32_t format, uint32_t usage); |
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void |
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gbm_device_destroy(struct gbm_device *gbm); |
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struct gbm_device * |
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gbm_create_device(int fd); |
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struct gbm_bo * |
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gbm_bo_create(struct gbm_device *gbm, |
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uint32_t width, uint32_t height, |
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uint32_t format, uint32_t flags); |
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struct gbm_bo * |
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gbm_bo_create_with_modifiers(struct gbm_device *gbm, |
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uint32_t width, uint32_t height, |
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uint32_t format, |
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const uint64_t *modifiers, uint32_t count); |
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#define GBM_BO_IMPORT_WL_BUFFER 0x5501 |
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#define GBM_BO_IMPORT_EGL_IMAGE 0x5502 |
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#define GBM_BO_IMPORT_FD 0x5503 |
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#define GBM_BO_IMPORT_FD_PLANAR 0x5504 |
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struct gbm_import_fd_data { |
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int fd; |
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uint32_t width; |
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uint32_t height; |
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uint32_t stride; |
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uint32_t format; |
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}; |
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struct gbm_import_fd_planar_data { |
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int fds[GBM_MAX_PLANES]; |
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uint32_t width; |
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uint32_t height; |
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uint32_t format; |
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uint32_t strides[GBM_MAX_PLANES]; |
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uint32_t offsets[GBM_MAX_PLANES]; |
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uint64_t format_modifiers[GBM_MAX_PLANES]; |
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}; |
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struct gbm_bo * |
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gbm_bo_import(struct gbm_device *gbm, uint32_t type, |
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void *buffer, uint32_t usage); |
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/** |
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* Flags to indicate the type of mapping for the buffer - these are |
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* passed into gbm_bo_map(). The caller must set the union of all the |
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* flags that are appropriate. |
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* |
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* These flags are independent of the GBM_BO_USE_* creation flags. However, |
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* mapping the buffer may require copying to/from a staging buffer. |
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* |
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* See also: pipe_transfer_usage |
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*/ |
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enum gbm_bo_transfer_flags { |
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/** |
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* Buffer contents read back (or accessed directly) at transfer |
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* create time. |
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*/ |
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GBM_BO_TRANSFER_READ = (1 << 0), |
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/** |
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* Buffer contents will be written back at unmap time |
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* (or modified as a result of being accessed directly). |
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*/ |
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GBM_BO_TRANSFER_WRITE = (1 << 1), |
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/** |
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* Read/modify/write |
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*/ |
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GBM_BO_TRANSFER_READ_WRITE = (GBM_BO_TRANSFER_READ | GBM_BO_TRANSFER_WRITE), |
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}; |
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void * |
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gbm_bo_map(struct gbm_bo *bo, |
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uint32_t x, uint32_t y, uint32_t width, uint32_t height, |
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uint32_t flags, uint32_t *stride, void **map_data, size_t plane); |
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void |
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gbm_bo_unmap(struct gbm_bo *bo, void *map_data); |
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uint32_t |
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gbm_bo_get_width(struct gbm_bo *bo); |
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uint32_t |
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gbm_bo_get_height(struct gbm_bo *bo); |
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uint32_t |
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gbm_bo_get_stride(struct gbm_bo *bo); |
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/* Tegra bringup hack to pass tiling parameters at EGLImage creation. */ |
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uint32_t |
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gbm_bo_get_stride_or_tiling(struct gbm_bo *bo); |
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uint32_t |
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gbm_bo_get_format(struct gbm_bo *bo); |
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uint64_t |
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gbm_bo_get_format_modifier(struct gbm_bo *bo); |
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struct gbm_device * |
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gbm_bo_get_device(struct gbm_bo *bo); |
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union gbm_bo_handle |
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gbm_bo_get_handle(struct gbm_bo *bo); |
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int |
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gbm_bo_get_fd(struct gbm_bo *bo); |
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size_t |
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gbm_bo_get_num_planes(struct gbm_bo *bo); |
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union gbm_bo_handle |
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gbm_bo_get_plane_handle(struct gbm_bo *bo, size_t plane); |
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int |
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gbm_bo_get_plane_fd(struct gbm_bo *bo, size_t plane); |
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uint32_t |
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gbm_bo_get_plane_offset(struct gbm_bo *bo, size_t plane); |
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uint32_t |
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gbm_bo_get_plane_size(struct gbm_bo *bo, size_t plane); |
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uint32_t |
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gbm_bo_get_plane_stride(struct gbm_bo *bo, size_t plane); |
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uint64_t |
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gbm_bo_get_plane_format_modifier(struct gbm_bo *bo, size_t plane); |
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void |
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gbm_bo_set_user_data(struct gbm_bo *bo, void *data, |
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void (*destroy_user_data)(struct gbm_bo *, void *)); |
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void * |
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gbm_bo_get_user_data(struct gbm_bo *bo); |
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void |
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gbm_bo_destroy(struct gbm_bo *bo); |
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struct gbm_surface * |
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gbm_surface_create(struct gbm_device *gbm, |
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uint32_t width, uint32_t height, |
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uint32_t format, uint32_t flags); |
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struct gbm_bo * |
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gbm_surface_lock_front_buffer(struct gbm_surface *surface); |
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void |
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gbm_surface_release_buffer(struct gbm_surface *surface, struct gbm_bo *bo); |
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int |
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gbm_surface_has_free_buffers(struct gbm_surface *surface); |
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void |
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gbm_surface_destroy(struct gbm_surface *surface); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif
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