blob: 8d9cb6e201fdab3d08c2704f224af584b75ea46e [file] [log] [blame]
/*
* Copyright 2014 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/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPicture.h"
#include "include/core/SkPictureRecorder.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkSamplingOptions.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTileMode.h"
#include "src/core/SkPicturePriv.h"
#include "src/core/SkResourceCache.h"
#include "tests/Test.h"
#include <cstdint>
#include <initializer_list>
// Test that the SkPictureShader cache is purged on shader deletion.
DEF_TEST(PictureShader_caching, reporter) {
auto makePicture = [] () {
SkPictureRecorder recorder;
recorder.beginRecording(100, 100)->drawColor(SK_ColorGREEN);
return recorder.finishRecordingAsPicture();
};
sk_sp<SkPicture> picture = makePicture();
REPORTER_ASSERT(reporter, picture->unique());
sk_sp<SkSurface> surface = SkSurface::MakeRasterN32Premul(100, 100);
{
SkPaint paint;
paint.setShader(picture->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
SkFilterMode::kNearest));
surface->getCanvas()->drawPaint(paint);
// We should have about 3 refs by now: local + shader + shader cache.
REPORTER_ASSERT(reporter, !picture->unique());
}
// Draw another picture shader to have a chance to purge.
{
SkPaint paint;
paint.setShader(makePicture()->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
SkFilterMode::kNearest));
surface->getCanvas()->drawPaint(paint);
}
// All but the local ref should be gone now.
REPORTER_ASSERT(reporter, picture->unique());
}
/*
* Check caching of picture-shaders
* - we do cache the underlying image (i.e. there is a cache entry)
* - there is only 1 entry, even with differing tile modes
* - after deleting the picture, the cache entry is purged
*/
DEF_TEST(PictureShader_caching2, reporter) {
auto picture = []() {
SkPictureRecorder recorder;
recorder.beginRecording(100, 100)->drawColor(SK_ColorGREEN);
return recorder.finishRecordingAsPicture();
}();
REPORTER_ASSERT(reporter, picture->unique());
struct Data {
uint64_t sharedID;
int counter;
} data = {
SkPicturePriv::MakeSharedID(picture->uniqueID()),
0,
};
auto counter = [](const SkResourceCache::Rec& rec, void* dataPtr) {
if (rec.getKey().getSharedID() == ((Data*)dataPtr)->sharedID) {
((Data*)dataPtr)->counter += 1;
}
};
SkResourceCache::VisitAll(counter, &data);
REPORTER_ASSERT(reporter, data.counter == 0);
// Draw with a view variants of picture-shaders that all use the same picture.
// Only expect 1 cache entry for all (since same CTM for all).
sk_sp<SkSurface> surface = SkSurface::MakeRasterN32Premul(100, 100);
for (SkTileMode m : {
SkTileMode::kClamp, SkTileMode::kRepeat, SkTileMode::kRepeat, SkTileMode::kDecal
}) {
SkPaint paint;
paint.setShader(picture->makeShader(m, m, SkFilterMode::kNearest));
surface->getCanvas()->drawPaint(paint);
}
// Don't expect any additional refs on the picture
REPORTER_ASSERT(reporter, picture->unique());
// Check that we did cache something, but only 1 thing
data.counter = 0;
SkResourceCache::VisitAll(counter, &data);
REPORTER_ASSERT(reporter, data.counter == 1);
// Now delete the picture, and check the we purge the cache entry
picture.reset();
SkResourceCache::CheckMessages();
data.counter = 0;
SkResourceCache::VisitAll(counter, &data);
REPORTER_ASSERT(reporter, data.counter == 0);
}