zero_copy_raster_buffer_provider.cc

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "cc/raster/zero_copy_raster_buffer_provider.h"

#include <stdint.h>

#include <algorithm>
#include <utility>

#include "base/memory/raw_ptr.h"
#include "base/trace_event/process_memory_dump.h"
#include "base/trace_event/trace_event.h"
#include "base/trace_event/traced_value.h"
#include "cc/resources/resource_pool.h"
#include "components/viz/client/client_resource_provider.h"
#include "components/viz/common/gpu/raster_context_provider.h"
#include "components/viz/common/resources/platform_color.h"
#include "components/viz/common/resources/shared_image_format_utils.h"
#include "gpu/command_buffer/client/client_shared_image.h"
#include "gpu/command_buffer/client/shared_image_interface.h"
#include "gpu/command_buffer/common/shared_image_trace_utils.h"
#include "gpu/command_buffer/common/shared_image_usage.h"
#include "ui/gfx/buffer_format_util.h"

namespace cc {
namespace {

constexpr static auto kBufferUsage = …;

// Subclass for InUsePoolResource that holds ownership of a zero-copy backing
// and does cleanup of the backing when destroyed.
class ZeroCopyGpuBacking : public ResourcePool::GpuBacking { … };

// RasterBuffer for the zero copy upload, which is given to the raster worker
// threads for raster/upload.
class ZeroCopyRasterBufferImpl : public RasterBuffer { … };

}  // namespace

ZeroCopyRasterBufferProvider::ZeroCopyRasterBufferProvider(
    viz::RasterContextProvider* compositor_context_provider,
    const RasterCapabilities& raster_caps)
    : … { … }

ZeroCopyRasterBufferProvider::~ZeroCopyRasterBufferProvider() = default;

std::unique_ptr<RasterBuffer>
ZeroCopyRasterBufferProvider::AcquireBufferForRaster(
    const ResourcePool::InUsePoolResource& resource,
    uint64_t resource_content_id,
    uint64_t previous_content_id,
    bool depends_on_at_raster_decodes,
    bool depends_on_hardware_accelerated_jpeg_candidates,
    bool depends_on_hardware_accelerated_webp_candidates) { … }

void ZeroCopyRasterBufferProvider::Flush() { … }

viz::SharedImageFormat ZeroCopyRasterBufferProvider::GetFormat() const { … }

bool ZeroCopyRasterBufferProvider::IsResourcePremultiplied() const { … }

bool ZeroCopyRasterBufferProvider::CanPartialRasterIntoProvidedResource()
    const { … }

bool ZeroCopyRasterBufferProvider::IsResourceReadyToDraw(
    const ResourcePool::InUsePoolResource& resource) { … }

uint64_t ZeroCopyRasterBufferProvider::SetReadyToDrawCallback(
    const std::vector<const ResourcePool::InUsePoolResource*>& resources,
    base::OnceClosure callback,
    uint64_t pending_callback_id) { … }

void ZeroCopyRasterBufferProvider::SetShutdownEvent(
    base::WaitableEvent* shutdown_event) { … }

void ZeroCopyRasterBufferProvider::Shutdown() { … }

}  // namespace cc
chromium/cc/raster/zero_copy_raster_buffer_provider.cc
