本文整理汇总了C++中GrContext::getResourceCachePurgeableBytes方法的典型用法代码示例。如果您正苦于以下问题：C++ GrContext::getResourceCachePurgeableBytes方法的具体用法？C++ GrContext::getResourceCachePurgeableBytes怎么用？C++ GrContext::getResourceCachePurgeableBytes使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GrContext的用法示例。
在下文中一共展示了GrContext::getResourceCachePurgeableBytes方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: while
RENDERTHREAD_SKIA_PIPELINE_TEST(CacheManager, trimMemory) {
DisplayInfo displayInfo = renderThread.mainDisplayInfo();
GrContext* grContext = renderThread.getGrContext();
ASSERT_TRUE(grContext != nullptr);
// create pairs of offscreen render targets and images until we exceed the
// backgroundCacheSizeLimit
std::vector<sk_sp<SkSurface>> surfaces;
while (getCacheUsage(grContext) <= renderThread.cacheManager().getBackgroundCacheSize()) {
SkImageInfo info = SkImageInfo::MakeA8(displayInfo.w, displayInfo.h);
sk_sp<SkSurface> surface = SkSurface::MakeRenderTarget(grContext, SkBudgeted::kYes, info);
surface->getCanvas()->drawColor(SK_AlphaTRANSPARENT);
grContext->flush();
surfaces.push_back(surface);
}
// create an image and pin it so that we have something with a unique key in the cache
sk_sp<Bitmap> bitmap =
Bitmap::allocateHeapBitmap(SkImageInfo::MakeA8(displayInfo.w, displayInfo.h));
sk_sp<SkColorFilter> filter;
sk_sp<SkImage> image = bitmap->makeImage(&filter);
ASSERT_TRUE(SkImage_pinAsTexture(image.get(), grContext));
// attempt to trim all memory while we still hold strong refs
renderThread.cacheManager().trimMemory(CacheManager::TrimMemoryMode::Complete);
ASSERT_TRUE(0 == grContext->getResourceCachePurgeableBytes());
// free the surfaces
for (size_t i = 0; i < surfaces.size(); i++) {
ASSERT_TRUE(surfaces[i]->unique());
surfaces[i].reset();
}
// unpin the image which should add a unique purgeable key to the cache
SkImage_unpinAsTexture(image.get(), grContext);
// verify that we have enough purgeable bytes
const size_t purgeableBytes = grContext->getResourceCachePurgeableBytes();
ASSERT_TRUE(renderThread.cacheManager().getBackgroundCacheSize() < purgeableBytes);
// UI hidden and make sure only some got purged (unique should remain)
renderThread.cacheManager().trimMemory(CacheManager::TrimMemoryMode::UiHidden);
ASSERT_TRUE(0 < grContext->getResourceCachePurgeableBytes());
ASSERT_TRUE(renderThread.cacheManager().getBackgroundCacheSize() > getCacheUsage(grContext));
// complete and make sure all get purged
renderThread.cacheManager().trimMemory(CacheManager::TrimMemoryMode::Complete);
ASSERT_TRUE(0 == grContext->getResourceCachePurgeableBytes());
}