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// 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 "components/viz/service/display/display_resource_provider_software.h"
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <set>
#include <unordered_map>
#include <utility>
#include <vector>
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/read_only_shared_memory_region.h"
#include "base/memory/ref_counted.h"
#include "base/memory/shared_memory_mapping.h"
#include "build/build_config.h"
#include "components/viz/client/client_resource_provider.h"
#include "components/viz/common/resources/release_callback.h"
#include "components/viz/common/resources/returned_resource.h"
#include "components/viz/service/gl/gpu_service_impl.h"
#include "components/viz/test/test_in_process_context_provider.h"
#include "gpu/command_buffer/client/client_shared_image.h"
#include "gpu/command_buffer/client/shared_image_interface.h"
#include "gpu/command_buffer/service/scheduler.h"
#include "gpu/command_buffer/service/shared_image/shared_image_manager.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/rect.h"
using testing::_;
using testing::ByMove;
using testing::DoAll;
using testing::Return;
using testing::SaveArg;
namespace viz {
namespace {
class MockReleaseCallback {
public:
MOCK_METHOD3(Released,
void(scoped_refptr<gpu::ClientSharedImage> shared_image,
const gpu::SyncToken& token,
bool lost));
};
static void CollectResources(std::vector<ReturnedResource>* array,
std::vector<ReturnedResource> returned) {
array->insert(array->end(), std::make_move_iterator(returned.begin()),
std::make_move_iterator(returned.end()));
}
class DisplayResourceProviderSoftwareTest : public testing::Test {
public:
DisplayResourceProviderSoftwareTest() = default;
~DisplayResourceProviderSoftwareTest() override {
child_resource_provider_->ShutdownAndReleaseAllResources();
}
void InitializeProvider() {
auto context_provider = base::MakeRefCounted<TestInProcessContextProvider>(
TestContextType::kSoftwareRaster, /*support_locking=*/false);
gpu::ContextResult result = context_provider->BindToCurrentSequence();
CHECK_EQ(result, gpu::ContextResult::kSuccess);
auto* gpu_service = context_provider->GpuService();
child_context_provider_ = std::move(context_provider);
resource_provider_ = std::make_unique<DisplayResourceProviderSoftware>(
gpu_service->shared_image_manager(), gpu_service->gpu_scheduler());
child_resource_provider_ = std::make_unique<ClientResourceProvider>();
}
ResourceId AllocateAndFillSoftwareResource(
MockReleaseCallback& release_callback,
const gfx::Size& size,
const uint32_t value) {
auto* shared_image_interface =
child_context_provider_->SharedImageInterface();
auto shared_image =
shared_image_interface->CreateSharedImageForSoftwareCompositor(
{SinglePlaneFormat::kBGRA_8888, size, gfx::ColorSpace(),
gpu::SHARED_IMAGE_USAGE_CPU_WRITE_ONLY,
"DisplayResourceProviderSoftwareTest"});
auto mapping = shared_image->Map();
uint32_t* ptr =
reinterpret_cast<uint32_t*>(mapping->GetMemoryForPlane(0).data());
base::span<uint32_t> span =
UNSAFE_BUFFERS(base::span(ptr, static_cast<uint32_t>(size.GetArea())));
std::fill(span.begin(), span.end(), value);
auto transferable_resource = TransferableResource::Make(
shared_image, TransferableResource::ResourceSource::kTileRasterTask,
shared_image_interface->GenVerifiedSyncToken());
auto callback = base::BindOnce(&MockReleaseCallback::Released,
base::Unretained(&release_callback),
std::move(shared_image));
return child_resource_provider_->ImportResource(
std::move(transferable_resource), std::move(callback));
}
protected:
scoped_refptr<RasterContextProvider> child_context_provider_;
std::unique_ptr<DisplayResourceProviderSoftware> resource_provider_;
std::unique_ptr<ClientResourceProvider> child_resource_provider_;
};
TEST_F(DisplayResourceProviderSoftwareTest, ReadSoftwareResources) {
InitializeProvider();
gfx::Size size(64, 64);
const uint32_t kBadBeef = 0xbadbeef;
MockReleaseCallback release_callback;
ResourceId resource_id =
AllocateAndFillSoftwareResource(release_callback, size, kBadBeef);
// Transfer resources to the parent.
std::vector<TransferableResource> send_to_parent;
std::vector<ReturnedResource> returned_to_child;
int child_id = resource_provider_->CreateChild(
base::BindRepeating(&CollectResources, &returned_to_child), SurfaceId());
child_resource_provider_->PrepareSendToParent(
{resource_id}, &send_to_parent,
static_cast<RasterContextProvider*>(nullptr));
resource_provider_->ReceiveFromChild(child_id, send_to_parent);
// In DisplayResourceProvider's namespace, use the mapped resource id.
std::unordered_map<ResourceId, ResourceId, ResourceIdHasher> resource_map =
resource_provider_->GetChildToParentMap(child_id);
ResourceId mapped_resource_id = resource_map[resource_id];
{
SkBitmap dstBitmap;
dstBitmap.allocPixels(SkImageInfo::Make(size.width(), size.height(),
kBGRA_8888_SkColorType,
kPremul_SkAlphaType));
DisplayResourceProviderSoftware::ScopedReadLockSkImage lock(
resource_provider_.get(), mapped_resource_id);
const SkImage* sk_image = lock.sk_image();
bool result = sk_image->readPixels(nullptr, dstBitmap.pixmap(),
/*srcX=*/0, /*srcY=*/0);
EXPECT_TRUE(result);
EXPECT_EQ(sk_image->width(), size.width());
EXPECT_EQ(sk_image->height(), size.height());
EXPECT_EQ(*dstBitmap.getAddr32(16, 16), kBadBeef);
}
EXPECT_EQ(0u, returned_to_child.size());
// Transfer resources back from the parent to the child. Set no resources as
// being in use.
resource_provider_->DeclareUsedResourcesFromChild(child_id, ResourceIdSet());
EXPECT_EQ(1u, returned_to_child.size());
child_resource_provider_->ReceiveReturnsFromParent(
std::move(returned_to_child));
EXPECT_CALL(release_callback, Released(_, _, false));
child_resource_provider_->RemoveImportedResource(resource_id);
}
} // namespace
} // namespace viz
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