| /* |
| * Copyright 2019 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/core/SkBitmap.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkSurface.h" |
| #include "include/effects/SkImageFilters.h" |
| #include "include/gpu/GrDirectContext.h" |
| #include "src/gpu/ganesh/GrDirectContextPriv.h" |
| #include "src/gpu/ganesh/GrResourceCache.h" |
| #include "tests/Test.h" |
| |
| // This is the repro of a CastOS memory regression bug (b/138674523). |
| // The test simply keeps calling SkImage::makeWithFilter (with a blur image filter) while |
| // shrinking the clip. |
| // When explicit resource allocation was enabled the last (re-expanded) image in the |
| // blur creation process became exact. |
| // This meant that its backing texture could no longer be reused. |
| // In CastOS' case (and, presumably, Linux desktop) they were only using Ganesh for |
| // 2D canvas and compositor image filtering. In this case Chrome doesn't regularly purge |
| // the cache. This would result in Ganesh quickly running up to its max cache limit. |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(RepeatedClippedBlurTest, reporter, ctxInfo) { |
| auto dContext = ctxInfo.directContext(); |
| GrResourceCache* cache = dContext->priv().getResourceCache(); |
| |
| const SkImageInfo ii = SkImageInfo::Make(1024, 600, kRGBA_8888_SkColorType, |
| kPremul_SkAlphaType); |
| |
| sk_sp<SkSurface> dst(SkSurface::MakeRenderTarget(dContext, SkBudgeted::kNo, ii)); |
| if (!dst) { |
| ERRORF(reporter, "Could not create surfaces for repeated clipped blur test."); |
| return; |
| } |
| |
| SkCanvas* dstCanvas = dst->getCanvas(); |
| |
| sk_sp<SkImage> bigImg; |
| |
| // Create the initial big image (this corresponds to the album artwork - which is larger |
| // than the screen) |
| { |
| SkImageInfo srcImageII = SkImageInfo::Make(1280, 1280, kRGBA_8888_SkColorType, |
| kPremul_SkAlphaType); |
| |
| // Make a red ring around a field of green. When rendered the blurred red ring |
| // should still be visible on all sides of the dest image. |
| SkBitmap bm; |
| bm.allocPixels(srcImageII); |
| bm.eraseColor(SK_ColorRED); |
| bm.eraseArea(SkIRect::MakeXYWH(1, 2, 1277, 1274), SK_ColorGREEN); |
| |
| sk_sp<SkImage> rasterImg = bm.asImage(); |
| bigImg = rasterImg->makeTextureImage(dContext); |
| } |
| |
| sk_sp<SkImage> smImg; |
| |
| // Shrink the album artwork down to the screen's size |
| { |
| SkImageInfo screenII = SkImageInfo::Make(1024, 600, kRGBA_8888_SkColorType, |
| kPremul_SkAlphaType); |
| |
| sk_sp<SkSurface> s = SkSurface::MakeRenderTarget(dContext, SkBudgeted::kYes, |
| screenII, 1, kTopLeft_GrSurfaceOrigin, |
| nullptr); |
| SkCanvas* c = s->getCanvas(); |
| |
| c->drawImageRect(bigImg, SkRect::MakeWH(1024, 600), SkSamplingOptions()); |
| |
| smImg = s->makeImageSnapshot(); |
| } |
| |
| // flush here just to clear the playing field |
| dContext->flushAndSubmit(); |
| |
| size_t beforeBytes = cache->getResourceBytes(); |
| |
| // Now draw the screen-sized image, blurred, multiple times with a shrinking clip. |
| // This simulates the swipe away where the screen-sized album artwork is moved off |
| // screen. |
| // Note that the blur has to big enough to kick the blur code into the decimate then |
| // re-expand case. |
| const SkIRect subset = SkIRect::MakeWH(1024, 600); |
| SkIRect clip = SkIRect::MakeWH(1024, 600); |
| |
| for (int i = 0; i < 30; ++i) { |
| dstCanvas->clear(SK_ColorBLUE); |
| |
| sk_sp<SkImageFilter> blur = SkImageFilters::Blur(20, 20, nullptr); |
| |
| SkIRect outSubset; |
| SkIPoint offset; |
| sk_sp<SkImage> filteredImg = smImg->makeWithFilter(dContext, blur.get(), subset, clip, |
| &outSubset, &offset); |
| |
| SkRect dstRect = SkRect::MakeXYWH(offset.fX, offset.fY, |
| outSubset.width(), outSubset.height()); |
| dstCanvas->drawImageRect(filteredImg, SkRect::Make(outSubset), dstRect, SkSamplingOptions(), |
| nullptr, SkCanvas::kStrict_SrcRectConstraint); |
| |
| // Flush here to mimic Chrome's SkiaHelper::ApplyImageFilter |
| dContext->flushAndSubmit(); |
| |
| clip.fRight -= 16; |
| } |
| |
| size_t afterBytes = cache->getResourceBytes(); |
| |
| // When the bug manifests the resource cache will accumulate ~80MB. If texture recycling |
| // is working as expected the cache size will level off at ~20MB. |
| REPORTER_ASSERT(reporter, afterBytes < beforeBytes + 20000000); |
| } |