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762 lines
16 KiB
762 lines
16 KiB
/*
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* Copyright © 2016, 2019 Collabora, Ltd.
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* Copyright (c) 2018 DisplayLink (UK) Ltd.
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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, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, 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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* Author: Daniel Stone <daniels@collabora.com>
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*/
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#include "config.h"
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#include <endian.h>
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#include <inttypes.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <wayland-client-protocol.h>
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#include <xf86drm.h>
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#include "shared/helpers.h"
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#include "shared/string-helpers.h"
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#include "shared/weston-drm-fourcc.h"
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#include "wayland-util.h"
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#include "pixel-formats.h"
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#ifdef ENABLE_EGL
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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#include <GLES3/gl3.h>
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#define GL_FORMAT(fmt) .gl_format = (fmt)
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#define GL_TYPE(type) .gl_type = (type)
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#define SAMPLER_TYPE(type) .sampler_type = (type)
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#else
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#define GL_FORMAT(fmt) .gl_format = 0
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#define GL_TYPE(type) .gl_type = 0
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#define SAMPLER_TYPE(type) .sampler_type = 0
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#endif
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#define DRM_FORMAT(f) .format = DRM_FORMAT_ ## f, .drm_format_name = #f
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#define BITS_RGBA_FIXED(r_, g_, b_, a_) \
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.bits.r = r_, \
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.bits.g = g_, \
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.bits.b = b_, \
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.bits.a = a_, \
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.component_type = PIXEL_COMPONENT_TYPE_FIXED
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#define BITS_RGBA_FLOAT(r_, g_, b_, a_) \
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.bits.r = r_, \
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.bits.g = g_, \
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.bits.b = b_, \
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.bits.a = a_, \
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.component_type = PIXEL_COMPONENT_TYPE_FLOAT
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#define PIXMAN_FMT(fmt) .pixman_format = (PIXMAN_ ## fmt)
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#include "shared/weston-egl-ext.h"
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/**
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* Table of DRM formats supported by Weston; RGB, ARGB and YUV formats are
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* supported. Indexed/greyscale formats, and formats not containing complete
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* colour channels, are not supported.
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*/
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static const struct pixel_format_info pixel_format_table[] = {
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{
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DRM_FORMAT(R8),
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BITS_RGBA_FIXED(8, 0, 0, 0),
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.bpp = 8,
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.hide_from_clients = true,
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GL_FORMAT(GL_R8_EXT),
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GL_TYPE(GL_UNSIGNED_BYTE),
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},
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{
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DRM_FORMAT(GR88),
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BITS_RGBA_FIXED(8, 8, 0, 0),
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.bpp = 16,
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.hide_from_clients = true,
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GL_FORMAT(GL_RG8_EXT),
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GL_TYPE(GL_UNSIGNED_BYTE),
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},
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{
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DRM_FORMAT(XRGB4444),
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BITS_RGBA_FIXED(4, 4, 4, 0),
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.bpp = 16,
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},
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{
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DRM_FORMAT(ARGB4444),
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BITS_RGBA_FIXED(4, 4, 4, 4),
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.bpp = 16,
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.opaque_substitute = DRM_FORMAT_XRGB4444,
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},
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{
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DRM_FORMAT(XBGR4444),
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BITS_RGBA_FIXED(4, 4, 4, 0),
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.bpp = 16,
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},
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{
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DRM_FORMAT(ABGR4444),
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BITS_RGBA_FIXED(4, 4, 4, 4),
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.bpp = 16,
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.opaque_substitute = DRM_FORMAT_XBGR4444,
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},
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{
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DRM_FORMAT(RGBX4444),
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BITS_RGBA_FIXED(4, 4, 4, 0),
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.bpp = 16,
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA),
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GL_TYPE(GL_UNSIGNED_SHORT_4_4_4_4),
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#endif
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},
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{
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DRM_FORMAT(RGBA4444),
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BITS_RGBA_FIXED(4, 4, 4, 4),
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.bpp = 16,
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.opaque_substitute = DRM_FORMAT_RGBX4444,
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA),
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GL_TYPE(GL_UNSIGNED_SHORT_4_4_4_4),
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#endif
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},
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{
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DRM_FORMAT(BGRX4444),
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BITS_RGBA_FIXED(4, 4, 4, 0),
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.bpp = 16,
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},
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{
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DRM_FORMAT(BGRA4444),
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BITS_RGBA_FIXED(4, 4, 4, 4),
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.bpp = 16,
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.opaque_substitute = DRM_FORMAT_BGRX4444,
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},
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{
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DRM_FORMAT(XRGB1555),
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BITS_RGBA_FIXED(5, 5, 5, 0),
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.addfb_legacy_depth = 15,
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.bpp = 16,
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},
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{
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DRM_FORMAT(ARGB1555),
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BITS_RGBA_FIXED(5, 5, 5, 1),
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.bpp = 16,
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.opaque_substitute = DRM_FORMAT_XRGB1555,
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},
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{
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DRM_FORMAT(XBGR1555),
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BITS_RGBA_FIXED(5, 5, 5, 0),
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.bpp = 16,
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},
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{
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DRM_FORMAT(ABGR1555),
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BITS_RGBA_FIXED(5, 5, 5, 1),
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.bpp = 16,
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.opaque_substitute = DRM_FORMAT_XBGR1555,
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},
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{
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DRM_FORMAT(RGBX5551),
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BITS_RGBA_FIXED(5, 5, 5, 0),
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.bpp = 16,
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA),
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GL_TYPE(GL_UNSIGNED_SHORT_5_5_5_1),
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#endif
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},
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{
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DRM_FORMAT(RGBA5551),
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BITS_RGBA_FIXED(5, 5, 5, 1),
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.bpp = 16,
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.opaque_substitute = DRM_FORMAT_RGBX5551,
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA),
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GL_TYPE(GL_UNSIGNED_SHORT_5_5_5_1),
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#endif
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},
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{
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DRM_FORMAT(BGRX5551),
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BITS_RGBA_FIXED(5, 5, 5, 0),
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.bpp = 16,
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},
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{
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DRM_FORMAT(BGRA5551),
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BITS_RGBA_FIXED(5, 5, 5, 1),
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.bpp = 16,
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.opaque_substitute = DRM_FORMAT_BGRX5551,
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},
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{
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DRM_FORMAT(RGB565),
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BITS_RGBA_FIXED(5, 6, 5, 0),
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.addfb_legacy_depth = 16,
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.bpp = 16,
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGB),
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GL_TYPE(GL_UNSIGNED_SHORT_5_6_5),
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PIXMAN_FMT(r5g6b5),
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#endif
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},
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{
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DRM_FORMAT(BGR565),
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BITS_RGBA_FIXED(5, 6, 5, 0),
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.bpp = 16,
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},
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{
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DRM_FORMAT(RGB888),
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BITS_RGBA_FIXED(8, 8, 8, 0),
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.bpp = 24,
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},
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{
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DRM_FORMAT(BGR888),
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BITS_RGBA_FIXED(8, 8, 8, 0),
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.bpp = 24,
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GL_FORMAT(GL_RGB),
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GL_TYPE(GL_UNSIGNED_BYTE),
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},
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{
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DRM_FORMAT(XRGB8888),
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BITS_RGBA_FIXED(8, 8, 8, 0),
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.addfb_legacy_depth = 24,
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.bpp = 32,
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GL_FORMAT(GL_BGRA_EXT),
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GL_TYPE(GL_UNSIGNED_BYTE),
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(x8r8g8b8),
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#else
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PIXMAN_FMT(b8g8r8x8),
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#endif
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},
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{
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DRM_FORMAT(ARGB8888),
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BITS_RGBA_FIXED(8, 8, 8, 8),
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.opaque_substitute = DRM_FORMAT_XRGB8888,
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.addfb_legacy_depth = 32,
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.bpp = 32,
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GL_FORMAT(GL_BGRA_EXT),
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GL_TYPE(GL_UNSIGNED_BYTE),
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(a8r8g8b8),
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#else
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PIXMAN_FMT(b8g8r8a8),
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#endif
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},
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{
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DRM_FORMAT(XBGR8888),
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BITS_RGBA_FIXED(8, 8, 8, 0),
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.bpp = 32,
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GL_FORMAT(GL_RGBA),
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GL_TYPE(GL_UNSIGNED_BYTE),
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(x8b8g8r8),
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#else
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PIXMAN_FMT(r8g8b8x8),
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#endif
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},
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{
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DRM_FORMAT(ABGR8888),
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BITS_RGBA_FIXED(8, 8, 8, 8),
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.bpp = 32,
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.opaque_substitute = DRM_FORMAT_XBGR8888,
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GL_FORMAT(GL_RGBA),
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GL_TYPE(GL_UNSIGNED_BYTE),
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(a8b8g8r8),
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#else
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PIXMAN_FMT(r8g8b8a8),
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#endif
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},
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{
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DRM_FORMAT(RGBX8888),
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BITS_RGBA_FIXED(8, 8, 8, 0),
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.bpp = 32,
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(r8g8b8x8),
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#else
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PIXMAN_FMT(x8b8g8r8),
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#endif
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},
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{
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DRM_FORMAT(RGBA8888),
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BITS_RGBA_FIXED(8, 8, 8, 8),
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.bpp = 32,
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.opaque_substitute = DRM_FORMAT_RGBX8888,
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(r8g8b8a8),
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#else
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PIXMAN_FMT(a8b8g8r8),
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#endif
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},
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{
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DRM_FORMAT(BGRX8888),
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BITS_RGBA_FIXED(8, 8, 8, 0),
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.bpp = 32,
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(b8g8r8x8),
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#else
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PIXMAN_FMT(x8r8g8b8),
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#endif
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},
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{
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DRM_FORMAT(BGRA8888),
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BITS_RGBA_FIXED(8, 8, 8, 8),
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.bpp = 32,
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.opaque_substitute = DRM_FORMAT_BGRX8888,
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(b8g8r8a8),
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#else
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PIXMAN_FMT(a8r8g8b8),
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#endif
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},
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{
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DRM_FORMAT(XRGB2101010),
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BITS_RGBA_FIXED(10, 10, 10, 0),
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.addfb_legacy_depth = 30,
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.bpp = 32,
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(x2r10g10b10),
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#endif
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},
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{
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DRM_FORMAT(ARGB2101010),
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BITS_RGBA_FIXED(10, 10, 10, 2),
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.bpp = 32,
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.opaque_substitute = DRM_FORMAT_XRGB2101010,
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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PIXMAN_FMT(a2r10g10b10),
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#endif
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},
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{
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DRM_FORMAT(XBGR2101010),
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BITS_RGBA_FIXED(10, 10, 10, 0),
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.bpp = 32,
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA),
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GL_TYPE(GL_UNSIGNED_INT_2_10_10_10_REV_EXT),
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PIXMAN_FMT(x2b10g10r10),
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#endif
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},
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{
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DRM_FORMAT(ABGR2101010),
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BITS_RGBA_FIXED(10, 10, 10, 2),
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.bpp = 32,
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.opaque_substitute = DRM_FORMAT_XBGR2101010,
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA),
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GL_TYPE(GL_UNSIGNED_INT_2_10_10_10_REV_EXT),
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PIXMAN_FMT(a2b10g10r10),
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#endif
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},
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{
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DRM_FORMAT(RGBX1010102),
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BITS_RGBA_FIXED(10, 10, 10, 0),
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.bpp = 32,
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},
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{
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DRM_FORMAT(RGBA1010102),
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BITS_RGBA_FIXED(10, 10, 10, 2),
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.bpp = 32,
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.opaque_substitute = DRM_FORMAT_RGBX1010102,
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},
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{
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DRM_FORMAT(BGRX1010102),
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BITS_RGBA_FIXED(10, 10, 10, 0),
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.bpp = 32,
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},
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{
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DRM_FORMAT(BGRA1010102),
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BITS_RGBA_FIXED(10, 10, 10, 2),
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.bpp = 32,
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.opaque_substitute = DRM_FORMAT_BGRX1010102,
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},
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{
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DRM_FORMAT(XBGR16161616),
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BITS_RGBA_FIXED(16, 16, 16, 0),
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.bpp = 64,
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#if __BYTE_ORDER__ == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA16_EXT),
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GL_TYPE(GL_UNSIGNED_SHORT),
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#endif
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},
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{
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DRM_FORMAT(ABGR16161616),
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BITS_RGBA_FIXED(16, 16, 16, 16),
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.bpp = 64,
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.opaque_substitute = DRM_FORMAT_XBGR16161616,
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#if __BYTE_ORDER__ == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA16_EXT),
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GL_TYPE(GL_UNSIGNED_SHORT),
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#endif
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},
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{
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DRM_FORMAT(XBGR16161616F),
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BITS_RGBA_FLOAT(16, 16, 16, 0),
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.bpp = 64,
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#if __BYTE_ORDER__ == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA16F),
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GL_TYPE(GL_HALF_FLOAT),
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#endif
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},
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{
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DRM_FORMAT(ABGR16161616F),
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BITS_RGBA_FLOAT(16, 16, 16, 16),
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.bpp = 64,
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.opaque_substitute = DRM_FORMAT_XBGR16161616F,
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#if __BYTE_ORDER__ == __LITTLE_ENDIAN
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GL_FORMAT(GL_RGBA16F),
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GL_TYPE(GL_HALF_FLOAT),
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#endif
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},
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{
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DRM_FORMAT(XRGB16161616F),
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BITS_RGBA_FLOAT(16, 16, 16, 0),
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.bpp = 64,
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},
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{
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DRM_FORMAT(ARGB16161616F),
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BITS_RGBA_FLOAT(16, 16, 16, 16),
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.bpp = 64,
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.opaque_substitute = DRM_FORMAT_XRGB16161616F,
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},
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{
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DRM_FORMAT(YUYV),
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SAMPLER_TYPE(EGL_TEXTURE_Y_XUXV_WL),
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.num_planes = 1,
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.hsub = 2,
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},
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{
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DRM_FORMAT(YVYU),
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SAMPLER_TYPE(EGL_TEXTURE_Y_XUXV_WL),
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.num_planes = 1,
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.chroma_order = ORDER_VU,
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.hsub = 2,
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},
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{
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DRM_FORMAT(UYVY),
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SAMPLER_TYPE(EGL_TEXTURE_Y_XUXV_WL),
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.num_planes = 1,
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.luma_chroma_order = ORDER_CHROMA_LUMA,
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.hsub = 2,
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},
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{
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DRM_FORMAT(VYUY),
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SAMPLER_TYPE(EGL_TEXTURE_Y_XUXV_WL),
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.num_planes = 1,
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.luma_chroma_order = ORDER_CHROMA_LUMA,
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.chroma_order = ORDER_VU,
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.hsub = 2,
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},
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{
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DRM_FORMAT(NV12),
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SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
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.num_planes = 2,
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.hsub = 2,
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.vsub = 2,
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},
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{
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DRM_FORMAT(NV21),
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SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
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.num_planes = 2,
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.chroma_order = ORDER_VU,
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.hsub = 2,
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.vsub = 2,
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},
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{
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DRM_FORMAT(NV16),
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SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
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.num_planes = 2,
|
|
.hsub = 2,
|
|
.vsub = 1,
|
|
},
|
|
{
|
|
DRM_FORMAT(NV61),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
|
|
.num_planes = 2,
|
|
.chroma_order = ORDER_VU,
|
|
.hsub = 2,
|
|
.vsub = 1,
|
|
},
|
|
{
|
|
DRM_FORMAT(NV24),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
|
|
.num_planes = 2,
|
|
},
|
|
{
|
|
DRM_FORMAT(NV42),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_UV_WL),
|
|
.num_planes = 2,
|
|
.chroma_order = ORDER_VU,
|
|
},
|
|
{
|
|
DRM_FORMAT(YUV410),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
.hsub = 4,
|
|
.vsub = 4,
|
|
},
|
|
{
|
|
DRM_FORMAT(YVU410),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
.chroma_order = ORDER_VU,
|
|
.hsub = 4,
|
|
.vsub = 4,
|
|
},
|
|
{
|
|
DRM_FORMAT(YUV411),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
.hsub = 4,
|
|
.vsub = 1,
|
|
},
|
|
{
|
|
DRM_FORMAT(YVU411),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
.chroma_order = ORDER_VU,
|
|
.hsub = 4,
|
|
.vsub = 1,
|
|
},
|
|
{
|
|
DRM_FORMAT(YUV420),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
.hsub = 2,
|
|
.vsub = 2,
|
|
},
|
|
{
|
|
DRM_FORMAT(YVU420),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
.chroma_order = ORDER_VU,
|
|
.hsub = 2,
|
|
.vsub = 2,
|
|
},
|
|
{
|
|
DRM_FORMAT(YUV422),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
.hsub = 2,
|
|
.vsub = 1,
|
|
},
|
|
{
|
|
DRM_FORMAT(YVU422),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
.chroma_order = ORDER_VU,
|
|
.hsub = 2,
|
|
.vsub = 1,
|
|
},
|
|
{
|
|
DRM_FORMAT(YUV444),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
},
|
|
{
|
|
DRM_FORMAT(YVU444),
|
|
SAMPLER_TYPE(EGL_TEXTURE_Y_U_V_WL),
|
|
.num_planes = 3,
|
|
.chroma_order = ORDER_VU,
|
|
},
|
|
{
|
|
DRM_FORMAT(XYUV8888),
|
|
.bpp = 32,
|
|
},
|
|
};
|
|
|
|
WL_EXPORT const struct pixel_format_info *
|
|
pixel_format_get_info_shm(uint32_t format)
|
|
{
|
|
if (format == WL_SHM_FORMAT_XRGB8888)
|
|
return pixel_format_get_info(DRM_FORMAT_XRGB8888);
|
|
else if (format == WL_SHM_FORMAT_ARGB8888)
|
|
return pixel_format_get_info(DRM_FORMAT_ARGB8888);
|
|
else
|
|
return pixel_format_get_info(format);
|
|
}
|
|
|
|
WL_EXPORT const struct pixel_format_info *
|
|
pixel_format_get_info(uint32_t format)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(pixel_format_table); i++) {
|
|
if (pixel_format_table[i].format == format)
|
|
return &pixel_format_table[i];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
WL_EXPORT const struct pixel_format_info *
|
|
pixel_format_get_info_by_index(unsigned int index)
|
|
{
|
|
if (index >= ARRAY_LENGTH(pixel_format_table))
|
|
return NULL;
|
|
|
|
return &pixel_format_table[index];
|
|
}
|
|
|
|
WL_EXPORT unsigned int
|
|
pixel_format_get_info_count(void)
|
|
{
|
|
return ARRAY_LENGTH(pixel_format_table);
|
|
}
|
|
|
|
|
|
WL_EXPORT const struct pixel_format_info *
|
|
pixel_format_get_info_by_drm_name(const char *drm_format_name)
|
|
{
|
|
const struct pixel_format_info *info;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(pixel_format_table); i++) {
|
|
info = &pixel_format_table[i];
|
|
if (strcasecmp(info->drm_format_name, drm_format_name) == 0)
|
|
return info;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
WL_EXPORT const struct pixel_format_info *
|
|
pixel_format_get_info_by_pixman(pixman_format_code_t pixman_format)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(pixel_format_table); i++) {
|
|
if (pixel_format_table[i].pixman_format == pixman_format)
|
|
return &pixel_format_table[i];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
WL_EXPORT unsigned int
|
|
pixel_format_get_plane_count(const struct pixel_format_info *info)
|
|
{
|
|
return info->num_planes ? info->num_planes : 1;
|
|
}
|
|
|
|
WL_EXPORT bool
|
|
pixel_format_is_opaque(const struct pixel_format_info *info)
|
|
{
|
|
return !info->opaque_substitute;
|
|
}
|
|
|
|
WL_EXPORT const struct pixel_format_info *
|
|
pixel_format_get_opaque_substitute(const struct pixel_format_info *info)
|
|
{
|
|
if (!info->opaque_substitute)
|
|
return info;
|
|
else
|
|
return pixel_format_get_info(info->opaque_substitute);
|
|
}
|
|
|
|
WL_EXPORT const struct pixel_format_info *
|
|
pixel_format_get_info_by_opaque_substitute(uint32_t format)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(pixel_format_table); i++) {
|
|
if (pixel_format_table[i].opaque_substitute == format)
|
|
return &pixel_format_table[i];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
WL_EXPORT unsigned int
|
|
pixel_format_hsub(const struct pixel_format_info *info,
|
|
unsigned int plane)
|
|
{
|
|
/* We don't support any formats where the first plane is subsampled. */
|
|
if (plane == 0 || info->hsub == 0)
|
|
return 1;
|
|
|
|
return info->hsub;
|
|
}
|
|
|
|
WL_EXPORT unsigned int
|
|
pixel_format_vsub(const struct pixel_format_info *info,
|
|
unsigned int plane)
|
|
{
|
|
/* We don't support any formats where the first plane is subsampled. */
|
|
if (plane == 0 || info->vsub == 0)
|
|
return 1;
|
|
|
|
return info->vsub;
|
|
}
|
|
|
|
WL_EXPORT unsigned int
|
|
pixel_format_width_for_plane(const struct pixel_format_info *info,
|
|
unsigned int plane,
|
|
unsigned int width)
|
|
{
|
|
return width / pixel_format_hsub(info, plane);
|
|
}
|
|
|
|
WL_EXPORT unsigned int
|
|
pixel_format_height_for_plane(const struct pixel_format_info *info,
|
|
unsigned int plane,
|
|
unsigned int height)
|
|
{
|
|
return height / pixel_format_vsub(info, plane);
|
|
}
|
|
|
|
WL_EXPORT char *
|
|
pixel_format_get_modifier(uint64_t modifier)
|
|
{
|
|
char *modifier_name;
|
|
char *vendor_name;
|
|
char *mod_str;
|
|
|
|
modifier_name = drmGetFormatModifierName(modifier);
|
|
vendor_name = drmGetFormatModifierVendor(modifier);
|
|
|
|
if (!modifier_name) {
|
|
if (vendor_name)
|
|
str_printf(&mod_str, "%s_%s (0x%llx)",
|
|
vendor_name, "UNKNOWN_MODIFIER",
|
|
(unsigned long long) modifier);
|
|
else
|
|
str_printf(&mod_str, "0x%llx",
|
|
(unsigned long long) modifier);
|
|
|
|
free(vendor_name);
|
|
return mod_str;
|
|
}
|
|
|
|
if (modifier == DRM_FORMAT_MOD_LINEAR) {
|
|
str_printf(&mod_str, "%s (0x%llx)", modifier_name,
|
|
(unsigned long long) modifier);
|
|
free(modifier_name);
|
|
free(vendor_name);
|
|
return mod_str;
|
|
}
|
|
|
|
str_printf(&mod_str, "%s_%s (0x%llx)", vendor_name, modifier_name,
|
|
(unsigned long long) modifier);
|
|
|
|
free(modifier_name);
|
|
free(vendor_name);
|
|
|
|
return mod_str;
|
|
}
|
|
|