chromium/gpu/command_buffer/service/shared_image/egl_image_backing_factory.cc

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "gpu/command_buffer/service/shared_image/egl_image_backing_factory.h"

#include <algorithm>

#include "components/viz/common/resources/resource_sizes.h"
#include "gpu/command_buffer/common/mailbox.h"
#include "gpu/command_buffer/common/shared_image_usage.h"
#include "gpu/command_buffer/service/service_utils.h"
#include "gpu/command_buffer/service/shared_image/egl_image_backing.h"
#include "gpu/command_buffer/service/shared_image/shared_image_factory.h"
#include "gpu/config/gpu_preferences.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_gl_api_implementation.h"
#include "ui/gl/gl_implementation.h"
#include "ui/gl/shared_gl_fence_egl.h"

namespace gpu {
namespace {

constexpr SharedImageUsageSet kSupportedUsage = …;

}  // namespace

///////////////////////////////////////////////////////////////////////////////
// EGLImageBackingFactory

EGLImageBackingFactory::EGLImageBackingFactory(
    const GpuPreferences& gpu_preferences,
    const GpuDriverBugWorkarounds& workarounds,
    const gles2::FeatureInfo* feature_info)
    : … { … }

EGLImageBackingFactory::~EGLImageBackingFactory() = default;

std::unique_ptr<SharedImageBacking> EGLImageBackingFactory::CreateSharedImage(
    const Mailbox& mailbox,
    viz::SharedImageFormat format,
    SurfaceHandle surface_handle,
    const gfx::Size& size,
    const gfx::ColorSpace& color_space,
    GrSurfaceOrigin surface_origin,
    SkAlphaType alpha_type,
    SharedImageUsageSet usage,
    std::string debug_label,
    bool is_thread_safe) { … }

std::unique_ptr<SharedImageBacking> EGLImageBackingFactory::CreateSharedImage(
    const Mailbox& mailbox,
    viz::SharedImageFormat format,
    const gfx::Size& size,
    const gfx::ColorSpace& color_space,
    GrSurfaceOrigin surface_origin,
    SkAlphaType alpha_type,
    SharedImageUsageSet usage,
    std::string debug_label,
    bool is_thread_safe,
    base::span<const uint8_t> pixel_data) { … }

std::unique_ptr<SharedImageBacking> EGLImageBackingFactory::CreateSharedImage(
    const Mailbox& mailbox,
    viz::SharedImageFormat format,
    const gfx::Size& size,
    const gfx::ColorSpace& color_space,
    GrSurfaceOrigin surface_origin,
    SkAlphaType alpha_type,
    SharedImageUsageSet usage,
    std::string debug_label,
    gfx::GpuMemoryBufferHandle handle) { … }

bool EGLImageBackingFactory::IsSupported(SharedImageUsageSet usage,
                                         viz::SharedImageFormat format,
                                         const gfx::Size& size,
                                         bool thread_safe,
                                         gfx::GpuMemoryBufferType gmb_type,
                                         GrContextType gr_context_type,
                                         base::span<const uint8_t> pixel_data) { … }

std::unique_ptr<SharedImageBacking> EGLImageBackingFactory::MakeEglImageBacking(
    const Mailbox& mailbox,
    viz::SharedImageFormat format,
    const gfx::Size& size,
    const gfx::ColorSpace& color_space,
    GrSurfaceOrigin surface_origin,
    SkAlphaType alpha_type,
    SharedImageUsageSet usage,
    std::string debug_label,
    base::span<const uint8_t> pixel_data) { … }

SharedImageBackingType EGLImageBackingFactory::GetBackingType() { … }

}  // namespace gpu