chromium/ui/ozone/platform/wayland/gpu/gl_surface_egl_readback_wayland.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/ozone/platform/wayland/gpu/gl_surface_egl_readback_wayland.h"

#include "base/memory/shared_memory_mapping.h"
#include "base/memory/unsafe_shared_memory_region.h"
#include "base/numerics/checked_math.h"
#include "ui/ozone/platform/wayland/gpu/wayland_buffer_manager_gpu.h"

namespace ui {

namespace {

constexpr size_t kMaxBuffers = …;

constexpr size_t kBytesPerPixelBGRA = …;

}  // namespace

GLSurfaceEglReadbackWayland::PixelBuffer::PixelBuffer(
    base::WritableSharedMemoryMapping shm_mapping,
    uint32_t buffer_id)
    : … { … }

GLSurfaceEglReadbackWayland::PixelBuffer::~PixelBuffer() = default;

GLSurfaceEglReadbackWayland::GLSurfaceEglReadbackWayland(
    gl::GLDisplayEGL* display,
    gfx::AcceleratedWidget widget,
    WaylandBufferManagerGpu* buffer_manager)
    : … { … }

void GLSurfaceEglReadbackWayland::Destroy() { … }

bool GLSurfaceEglReadbackWayland::Resize(const gfx::Size& size,
                                         float scale_factor,
                                         const gfx::ColorSpace& color_space,
                                         bool has_alpha) { … }

bool GLSurfaceEglReadbackWayland::SupportsAsyncSwap() { … }

gfx::SwapResult GLSurfaceEglReadbackWayland::SwapBuffers(
    PresentationCallback callback,
    gfx::FrameData data) { … }

void GLSurfaceEglReadbackWayland::SwapBuffersAsync(
    SwapCompletionCallback completion_callback,
    PresentationCallback presentation_callback,
    gfx::FrameData data) { … }

gfx::SurfaceOrigin GLSurfaceEglReadbackWayland::GetOrigin() const { … }

GLSurfaceEglReadbackWayland::~GLSurfaceEglReadbackWayland() { … }

void GLSurfaceEglReadbackWayland::OnSubmission(
    uint32_t frame_id,
    const gfx::SwapResult& swap_result,
    gfx::GpuFenceHandle release_fence) { … }

void GLSurfaceEglReadbackWayland::OnPresentation(
    uint32_t frame_id,
    const gfx::PresentationFeedback& feedback) { … }

void GLSurfaceEglReadbackWayland::DestroyBuffers() { … }

}  // namespace ui