350 lines
13 KiB
C
350 lines
13 KiB
C
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/*
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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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#define __GBM__ 1
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#include <stddef.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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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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/** Format of the allocated buffer */
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enum gbm_bo_format {
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/** RGB with 8 bits per channel in a 32 bit value */
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GBM_BO_FORMAT_XRGB8888,
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/** ARGB with 8 bits per channel in a 32 bit value */
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GBM_BO_FORMAT_ARGB8888
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};
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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 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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* 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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* Buffer can be used for gbm_bo_write. This is guaranteed to work
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* with GBM_BO_USE_CURSOR, but may not work for other combinations.
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*/
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GBM_BO_USE_WRITE = (1 << 3),
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/**
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* Buffer is linear, i.e. not tiled.
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*/
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GBM_BO_USE_LINEAR = (1 << 4),
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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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#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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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_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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*/
|
||
|
|
GBM_BO_TRANSFER_READ = (1 << 0),
|
||
|
|
/**
|
||
|
|
* Buffer contents will be written back at unmap time
|
||
|
|
* (or modified as a result of being accessed directly).
|
||
|
|
*/
|
||
|
|
GBM_BO_TRANSFER_WRITE = (1 << 1),
|
||
|
|
/**
|
||
|
|
* Read/modify/write
|
||
|
|
*/
|
||
|
|
GBM_BO_TRANSFER_READ_WRITE = (GBM_BO_TRANSFER_READ | GBM_BO_TRANSFER_WRITE),
|
||
|
|
};
|
||
|
|
|
||
|
|
void *
|
||
|
|
gbm_bo_map(struct gbm_bo *bo,
|
||
|
|
uint32_t x, uint32_t y, uint32_t width, uint32_t height,
|
||
|
|
uint32_t flags, uint32_t *stride, void **map_data);
|
||
|
|
|
||
|
|
void
|
||
|
|
gbm_bo_unmap(struct gbm_bo *bo, void *map_data);
|
||
|
|
|
||
|
|
uint32_t
|
||
|
|
gbm_bo_get_width(struct gbm_bo *bo);
|
||
|
|
|
||
|
|
uint32_t
|
||
|
|
gbm_bo_get_height(struct gbm_bo *bo);
|
||
|
|
|
||
|
|
uint32_t
|
||
|
|
gbm_bo_get_stride(struct gbm_bo *bo);
|
||
|
|
|
||
|
|
uint32_t
|
||
|
|
gbm_bo_get_format(struct gbm_bo *bo);
|
||
|
|
|
||
|
|
struct gbm_device *
|
||
|
|
gbm_bo_get_device(struct gbm_bo *bo);
|
||
|
|
|
||
|
|
union gbm_bo_handle
|
||
|
|
gbm_bo_get_handle(struct gbm_bo *bo);
|
||
|
|
|
||
|
|
int
|
||
|
|
gbm_bo_get_fd(struct gbm_bo *bo);
|
||
|
|
|
||
|
|
int
|
||
|
|
gbm_bo_write(struct gbm_bo *bo, const void *buf, size_t count);
|
||
|
|
|
||
|
|
void
|
||
|
|
gbm_bo_set_user_data(struct gbm_bo *bo, void *data,
|
||
|
|
void (*destroy_user_data)(struct gbm_bo *, void *));
|
||
|
|
|
||
|
|
void *
|
||
|
|
gbm_bo_get_user_data(struct gbm_bo *bo);
|
||
|
|
|
||
|
|
void
|
||
|
|
gbm_bo_destroy(struct gbm_bo *bo);
|
||
|
|
|
||
|
|
struct gbm_surface *
|
||
|
|
gbm_surface_create(struct gbm_device *gbm,
|
||
|
|
uint32_t width, uint32_t height,
|
||
|
|
uint32_t format, uint32_t flags);
|
||
|
|
|
||
|
|
int
|
||
|
|
gbm_surface_needs_lock_front_buffer(struct gbm_surface *surface);
|
||
|
|
|
||
|
|
struct gbm_bo *
|
||
|
|
gbm_surface_lock_front_buffer(struct gbm_surface *surface);
|
||
|
|
|
||
|
|
void
|
||
|
|
gbm_surface_release_buffer(struct gbm_surface *surface, struct gbm_bo *bo);
|
||
|
|
|
||
|
|
int
|
||
|
|
gbm_surface_has_free_buffers(struct gbm_surface *surface);
|
||
|
|
|
||
|
|
void
|
||
|
|
gbm_surface_destroy(struct gbm_surface *surface);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|