chromium/ui/gfx/linux/gpu_memory_buffer_support_x11.cc

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/gfx/linux/gpu_memory_buffer_support_x11.h"

#include <fcntl.h>
#include <xcb/xcb.h>

#include <memory>

#include "base/containers/contains.h"
#include "base/debug/crash_logging.h"
#include "base/logging.h"
#include "base/no_destructor.h"
#include "base/posix/eintr_wrapper.h"
#include "ui/gfx/buffer_format_util.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/buffer_usage_util.h"
#include "ui/gfx/linux/drm_util_linux.h"
#include "ui/gfx/linux/gbm_buffer.h"
#include "ui/gfx/linux/gbm_device.h"
#include "ui/gfx/linux/gbm_util.h"
#include "ui/gfx/linux/gbm_wrapper.h"
#include "ui/gfx/x/connection.h"
#include "ui/gfx/x/dri3.h"
#include "ui/gfx/x/future.h"

namespace ui {

namespace {

// Obtain an authenticated DRM fd from X11 and create a GbmDevice with it.
std::unique_ptr<ui::GbmDevice> CreateX11GbmDevice() { … }

std::vector<gfx::BufferUsageAndFormat> CreateSupportedConfigList(
    ui::GbmDevice* device) { … }

}  // namespace

// static
GpuMemoryBufferSupportX11* GpuMemoryBufferSupportX11::GetInstance() { … }

GpuMemoryBufferSupportX11::GpuMemoryBufferSupportX11()
    : … { … }

GpuMemoryBufferSupportX11::~GpuMemoryBufferSupportX11() = default;

std::unique_ptr<GbmBuffer> GpuMemoryBufferSupportX11::CreateBuffer(
    gfx::BufferFormat format,
    const gfx::Size& size,
    gfx::BufferUsage usage) { … }

bool GpuMemoryBufferSupportX11::CanCreateNativePixmapForFormat(
    gfx::BufferFormat format) { … }

std::unique_ptr<GbmBuffer> GpuMemoryBufferSupportX11::CreateBufferFromHandle(
    const gfx::Size& size,
    gfx::BufferFormat format,
    gfx::NativePixmapHandle handle) { … }

}  // namespace ui