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fake_raster_buffer_provider.cc
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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/test/fake_raster_buffer_provider.h"
#include "cc/resources/resource_pool.h"
namespace cc {
class StubGpuBacking : public ResourcePool::GpuBacking {
public:
base::trace_event::MemoryAllocatorDumpGuid MemoryDumpGuid(
uint64_t tracing_process_id) override {
return {};
}
base::UnguessableToken SharedMemoryGuid() override { return {}; }
};
FakeRasterBufferProviderImpl::FakeRasterBufferProviderImpl() = default;
FakeRasterBufferProviderImpl::~FakeRasterBufferProviderImpl() = default;
std::unique_ptr<RasterBuffer>
FakeRasterBufferProviderImpl::AcquireBufferForRaster(
const ResourcePool::InUsePoolResource& resource,
uint64_t resource_content_id,
uint64_t previous_content_id) {
auto backing = std::make_unique<StubGpuBacking>();
backing->mailbox = gpu::Mailbox::Generate();
resource.set_gpu_backing(std::move(backing));
return nullptr;
}
void FakeRasterBufferProviderImpl::Flush() {}
viz::ResourceFormat FakeRasterBufferProviderImpl::GetResourceFormat(
bool must_support_alpha) const {
return viz::ResourceFormat::RGBA_8888;
}
bool FakeRasterBufferProviderImpl::IsResourceSwizzleRequired(
bool must_support_alpha) const {
return ResourceFormatRequiresSwizzle(GetResourceFormat(must_support_alpha));
}
bool FakeRasterBufferProviderImpl::CanPartialRasterIntoProvidedResource()
const {
return true;
}
bool FakeRasterBufferProviderImpl::IsResourceReadyToDraw(
const ResourcePool::InUsePoolResource& resource) const {
return true;
}
uint64_t FakeRasterBufferProviderImpl::SetReadyToDrawCallback(
const std::vector<const ResourcePool::InUsePoolResource*>& resources,
const base::Callback<void()>& callback,
uint64_t pending_callback_id) const {
return 0;
}
void FakeRasterBufferProviderImpl::Shutdown() {}
} // namespace cc