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113 lines
3.7 KiB
113 lines
3.7 KiB
/*
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* Copyright 2014 Google Inc.
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*
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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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*/
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#include "include/core/SkCanvas.h"
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#include "include/core/SkPicture.h"
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#include "include/core/SkPictureRecorder.h"
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#include "include/core/SkShader.h"
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#include "include/core/SkSurface.h"
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#include "src/core/SkPicturePriv.h"
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#include "src/core/SkResourceCache.h"
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#include "src/shaders/SkPictureShader.h"
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#include "tests/Test.h"
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// Test that the SkPictureShader cache is purged on shader deletion.
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DEF_TEST(PictureShader_caching, reporter) {
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auto makePicture = [] () {
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SkPictureRecorder recorder;
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recorder.beginRecording(100, 100)->drawColor(SK_ColorGREEN);
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return recorder.finishRecordingAsPicture();
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};
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sk_sp<SkPicture> picture = makePicture();
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REPORTER_ASSERT(reporter, picture->unique());
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sk_sp<SkSurface> surface = SkSurface::MakeRasterN32Premul(100, 100);
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{
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SkPaint paint;
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paint.setShader(picture->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
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SkFilterMode::kNearest));
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surface->getCanvas()->drawPaint(paint);
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// We should have about 3 refs by now: local + shader + shader cache.
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REPORTER_ASSERT(reporter, !picture->unique());
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}
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// Draw another picture shader to have a chance to purge.
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{
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SkPaint paint;
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paint.setShader(makePicture()->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
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SkFilterMode::kNearest));
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surface->getCanvas()->drawPaint(paint);
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}
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// All but the local ref should be gone now.
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REPORTER_ASSERT(reporter, picture->unique());
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}
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/*
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* Check caching of picture-shaders
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* - we do cache the underlying image (i.e. there is a cache entry)
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* - there is only 1 entry, even with differing tile modes
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* - after deleting the picture, the cache entry is purged
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*/
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DEF_TEST(PictureShader_caching2, reporter) {
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auto picture = []() {
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SkPictureRecorder recorder;
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recorder.beginRecording(100, 100)->drawColor(SK_ColorGREEN);
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return recorder.finishRecordingAsPicture();
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}();
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REPORTER_ASSERT(reporter, picture->unique());
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struct Data {
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uint64_t sharedID;
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int counter;
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} data = {
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SkPicturePriv::MakeSharedID(picture->uniqueID()),
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0,
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};
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auto counter = [](const SkResourceCache::Rec& rec, void* dataPtr) {
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if (rec.getKey().getSharedID() == ((Data*)dataPtr)->sharedID) {
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((Data*)dataPtr)->counter += 1;
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}
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};
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SkResourceCache::VisitAll(counter, &data);
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REPORTER_ASSERT(reporter, data.counter == 0);
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// Draw with a view variants of picture-shaders that all use the same picture.
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// Only expect 1 cache entry for all (since same CTM for all).
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sk_sp<SkSurface> surface = SkSurface::MakeRasterN32Premul(100, 100);
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for (SkTileMode m : {
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SkTileMode::kClamp, SkTileMode::kRepeat, SkTileMode::kRepeat, SkTileMode::kDecal
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}) {
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SkPaint paint;
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paint.setShader(picture->makeShader(m, m, SkFilterMode::kNearest));
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surface->getCanvas()->drawPaint(paint);
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}
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// Don't expect any additional refs on the picture
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REPORTER_ASSERT(reporter, picture->unique());
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// Check that we did cache something, but only 1 thing
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data.counter = 0;
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SkResourceCache::VisitAll(counter, &data);
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REPORTER_ASSERT(reporter, data.counter == 1);
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// Now delete the picture, and check the we purge the cache entry
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picture.reset();
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SkResourceCache::CheckMessages();
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data.counter = 0;
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SkResourceCache::VisitAll(counter, &data);
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REPORTER_ASSERT(reporter, data.counter == 0);
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}
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