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// Copyright 2016 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/common/gpu/context_cache_controller.h"
#include <utility>
#include <vector>
#include "base/test/test_mock_time_task_runner.h"
#include "components/viz/test/test_context_provider.h"
#include "components/viz/test/test_context_support.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkImage.h"
#include "third_party/skia/include/core/SkPixmap.h"
#include "third_party/skia/include/gpu/ganesh/GrDirectContext.h"
#include "third_party/skia/include/gpu/ganesh/SkImageGanesh.h"
using ::testing::Mock;
using ::testing::StrictMock;
namespace viz {
namespace {
class MockContextSupport : public TestContextSupport {
public:
MockContextSupport() = default;
MOCK_METHOD1(SetAggressivelyFreeResources,
void(bool aggressively_free_resources));
};
TEST(ContextCacheControllerTest, ScopedVisibilityBasic) {
StrictMock<MockContextSupport> context_support;
auto task_runner = base::MakeRefCounted<base::TestMockTimeTaskRunner>();
ContextCacheController cache_controller(&context_support, task_runner);
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
std::unique_ptr<ContextCacheController::ScopedVisibility> visibility =
cache_controller.ClientBecameVisible();
Mock::VerifyAndClearExpectations(&context_support);
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
cache_controller.ClientBecameNotVisible(std::move(visibility));
}
TEST(ContextCacheControllerTest, ScopedVisibilityMulti) {
StrictMock<MockContextSupport> context_support;
auto task_runner = base::MakeRefCounted<base::TestMockTimeTaskRunner>();
ContextCacheController cache_controller(&context_support, task_runner);
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
auto visibility_1 = cache_controller.ClientBecameVisible();
Mock::VerifyAndClearExpectations(&context_support);
auto visibility_2 = cache_controller.ClientBecameVisible();
cache_controller.ClientBecameNotVisible(std::move(visibility_1));
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
cache_controller.ClientBecameNotVisible(std::move(visibility_2));
}
// Check that resources aren't freed during shutdown until the
// ContextCacheController is also deleted.
TEST(ContextCacheControllerTest, ScopedVisibilityDuringShutdown) {
StrictMock<MockContextSupport> context_support;
auto task_runner = base::MakeRefCounted<base::TestMockTimeTaskRunner>();
std::unique_ptr<ContextCacheController> cache_controller =
std::make_unique<ContextCacheController>(&context_support, task_runner);
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
std::unique_ptr<ContextCacheController::ScopedVisibility> visibility =
cache_controller->ClientBecameVisible();
Mock::VerifyAndClearExpectations(&context_support);
cache_controller->ClientBecameNotVisibleDuringShutdown(std::move(visibility));
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
cache_controller.reset();
}
// Check that multiple clients can shutdown successfully.
TEST(ContextCacheControllerTest, ScopedVisibilityDuringShutdownMulti) {
StrictMock<MockContextSupport> context_support;
auto task_runner = base::MakeRefCounted<base::TestMockTimeTaskRunner>();
std::unique_ptr<ContextCacheController> cache_controller =
std::make_unique<ContextCacheController>(&context_support, task_runner);
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
auto visibility_1 = cache_controller->ClientBecameVisible();
Mock::VerifyAndClearExpectations(&context_support);
auto visibility_2 = cache_controller->ClientBecameVisible();
cache_controller->ClientBecameNotVisibleDuringShutdown(
std::move(visibility_1));
cache_controller->ClientBecameNotVisibleDuringShutdown(
std::move(visibility_2));
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
cache_controller.reset();
}
TEST(ContextCacheControllerTest, ScopedBusyWhileVisible) {
StrictMock<MockContextSupport> context_support;
auto task_runner = base::MakeRefCounted<base::TestMockTimeTaskRunner>();
ContextCacheController cache_controller(&context_support, task_runner);
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
auto visibility = cache_controller.ClientBecameVisible();
Mock::VerifyAndClearExpectations(&context_support);
// Now that we're visible, ensure that going idle triggers a delayed cleanup.
auto busy = cache_controller.ClientBecameBusy();
cache_controller.ClientBecameNotBusy(std::move(busy));
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
task_runner->FastForwardBy(base::Seconds(5));
Mock::VerifyAndClearExpectations(&context_support);
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
cache_controller.ClientBecameNotVisible(std::move(visibility));
}
TEST(ContextCacheControllerTest, ScopedBusyWhileNotVisible) {
StrictMock<MockContextSupport> context_support;
auto task_runner = base::MakeRefCounted<base::TestMockTimeTaskRunner>();
ContextCacheController cache_controller(&context_support, task_runner);
auto busy = cache_controller.ClientBecameBusy();
// We are not visible, so becoming busy should not trigger an idle callback.
cache_controller.ClientBecameNotBusy(std::move(busy));
task_runner->FastForwardBy(base::Seconds(5));
}
TEST(ContextCacheControllerTest, ScopedBusyMulitpleWhileVisible) {
StrictMock<MockContextSupport> context_support;
auto task_runner = base::MakeRefCounted<base::TestMockTimeTaskRunner>();
ContextCacheController cache_controller(&context_support, task_runner);
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
auto visible = cache_controller.ClientBecameVisible();
Mock::VerifyAndClearExpectations(&context_support);
auto busy_1 = cache_controller.ClientBecameBusy();
cache_controller.ClientBecameNotBusy(std::move(busy_1));
auto busy_2 = cache_controller.ClientBecameBusy();
cache_controller.ClientBecameNotBusy(std::move(busy_2));
// When we fast forward, only one cleanup should happen.
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
task_runner->FastForwardBy(base::Seconds(5));
Mock::VerifyAndClearExpectations(&context_support);
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
cache_controller.ClientBecameNotVisible(std::move(visible));
}
// Confirms that the Skia performDeferredCleanup API used by the cache
// controller behaves as expected.
TEST(ContextCacheControllerTest, CheckSkiaResourcePurgeAPI) {
StrictMock<MockContextSupport> context_support;
auto task_runner = base::MakeRefCounted<base::TestMockTimeTaskRunner>();
// Must outlive `cache_controller`.
auto context_provider = TestContextProvider::Create();
context_provider->BindToCurrentSequence();
ContextCacheController cache_controller(&context_support, task_runner);
auto* gr_context = context_provider->GrContext();
cache_controller.SetGrContext(gr_context);
// Make us visible.
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
auto visibility = cache_controller.ClientBecameVisible();
Mock::VerifyAndClearExpectations(&context_support);
// Now that we're visible, become busy, create and release a skia resource.
auto busy = cache_controller.ClientBecameBusy();
{
auto image_info = SkImageInfo::MakeN32Premul(200, 200);
std::vector<uint8_t> image_data(image_info.computeMinByteSize());
SkPixmap pixmap(image_info, image_data.data(), image_info.minRowBytes());
auto image = SkImages::RasterFromPixmapCopy(pixmap);
auto image_gpu = SkImages::TextureFromImage(gr_context, std::move(image));
gr_context->flushAndSubmit();
}
// Ensure we see size taken up for the image (now released, but cached for
// re-use).
EXPECT_GT(gr_context->getResourceCachePurgeableBytes(), 0u);
// Make the client idle and wait for the idle callback to trigger.
cache_controller.ClientBecameNotBusy(std::move(busy));
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
EXPECT_CALL(context_support, SetAggressivelyFreeResources(false));
task_runner->FastForwardBy(base::Seconds(5));
Mock::VerifyAndClearExpectations(&context_support);
// The Skia resource cache should now be empty.
EXPECT_EQ(gr_context->getResourceCachePurgeableBytes(), 0u);
// Set not-visible.
EXPECT_CALL(context_support, SetAggressivelyFreeResources(true));
cache_controller.ClientBecameNotVisible(std::move(visibility));
}
} // namespace
} // namespace viz
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