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80be2c43ea
RasterCache::Get() methods were not updating the RasterCache::Entry access_count and used_this_frame fields, as is done in RasterCache::Prepare(). This can result in onscreen images being evicted from the cache as new entries are created (e.g. as new elements scroll onscreen).
127 lines
3.4 KiB
C++
127 lines
3.4 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/flow/raster_cache.h"
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#include "gtest/gtest.h"
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#include "third_party/skia/include/core/SkPicture.h"
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#include "third_party/skia/include/core/SkPictureRecorder.h"
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namespace flutter {
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namespace testing {
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namespace {
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sk_sp<SkPicture> GetSamplePicture() {
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SkPictureRecorder recorder;
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recorder.beginRecording(SkRect::MakeWH(150, 100));
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SkPaint paint;
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paint.setColor(SK_ColorRED);
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recorder.getRecordingCanvas()->drawRect(SkRect::MakeXYWH(10, 10, 80, 80),
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paint);
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return recorder.finishRecordingAsPicture();
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}
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} // namespace
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TEST(RasterCache, SimpleInitialization) {
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flutter::RasterCache cache;
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ASSERT_TRUE(true);
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}
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TEST(RasterCache, ThresholdIsRespected) {
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size_t threshold = 2;
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flutter::RasterCache cache(threshold);
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SkMatrix matrix = SkMatrix::I();
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auto picture = GetSamplePicture();
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sk_sp<SkImage> image;
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sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
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ASSERT_FALSE(
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cache.Prepare(NULL, picture.get(), matrix, srgb.get(), true, false));
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// 1st access.
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ASSERT_FALSE(cache.Get(*picture, matrix).is_valid());
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cache.SweepAfterFrame();
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ASSERT_FALSE(
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cache.Prepare(NULL, picture.get(), matrix, srgb.get(), true, false));
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// 2st access.
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ASSERT_FALSE(cache.Get(*picture, matrix).is_valid());
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cache.SweepAfterFrame();
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// Now Prepare should cache it.
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ASSERT_TRUE(
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cache.Prepare(NULL, picture.get(), matrix, srgb.get(), true, false));
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ASSERT_TRUE(cache.Get(*picture, matrix).is_valid());
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}
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TEST(RasterCache, AccessThresholdOfZeroDisablesCaching) {
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size_t threshold = 0;
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flutter::RasterCache cache(threshold);
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SkMatrix matrix = SkMatrix::I();
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auto picture = GetSamplePicture();
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sk_sp<SkImage> image;
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sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
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ASSERT_FALSE(
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cache.Prepare(NULL, picture.get(), matrix, srgb.get(), true, false));
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ASSERT_FALSE(cache.Get(*picture, matrix).is_valid());
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}
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TEST(RasterCache, PictureCacheLimitPerFrameIsRespectedWhenZero) {
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size_t picture_cache_limit_per_frame = 0;
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flutter::RasterCache cache(3, picture_cache_limit_per_frame);
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SkMatrix matrix = SkMatrix::I();
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auto picture = GetSamplePicture();
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sk_sp<SkImage> image;
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sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
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ASSERT_FALSE(
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cache.Prepare(NULL, picture.get(), matrix, srgb.get(), true, false));
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ASSERT_FALSE(cache.Get(*picture, matrix).is_valid());
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}
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TEST(RasterCache, SweepsRemoveUnusedFrames) {
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size_t threshold = 1;
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flutter::RasterCache cache(threshold);
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SkMatrix matrix = SkMatrix::I();
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auto picture = GetSamplePicture();
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sk_sp<SkImage> image;
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sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
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ASSERT_FALSE(cache.Prepare(NULL, picture.get(), matrix, srgb.get(), true,
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false)); // 1
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ASSERT_FALSE(cache.Get(*picture, matrix).is_valid());
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cache.SweepAfterFrame();
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ASSERT_TRUE(cache.Prepare(NULL, picture.get(), matrix, srgb.get(), true,
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false)); // 2
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ASSERT_TRUE(cache.Get(*picture, matrix).is_valid());
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cache.SweepAfterFrame();
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cache.SweepAfterFrame(); // Extra frame without a Get image access.
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ASSERT_FALSE(cache.Get(*picture, matrix).is_valid());
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}
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} // namespace testing
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} // namespace flutter
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