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- /*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "tests/Test.h"
- #include "include/core/SkMallocPixelRef.h"
- #include "include/core/SkPixelRef.h"
- static void decrement_counter_proc(void* pixels, void* ctx) {
- int* counter = (int*)ctx;
- *counter -= 1;
- }
- static void test_dont_leak_install(skiatest::Reporter* reporter) {
- bool success;
- int release_counter;
- SkImageInfo info;
- SkBitmap bm;
- info = SkImageInfo::MakeN32Premul(0, 0);
- release_counter = 1;
- success = bm.installPixels(info, nullptr, 0, decrement_counter_proc, &release_counter);
- REPORTER_ASSERT(reporter, true == success);
- bm.reset();
- REPORTER_ASSERT(reporter, 0 == release_counter);
- info = SkImageInfo::MakeN32Premul(10, 10);
- release_counter = 1;
- success = bm.installPixels(info, nullptr, 0, decrement_counter_proc, &release_counter);
- REPORTER_ASSERT(reporter, true == success);
- bm.reset();
- REPORTER_ASSERT(reporter, 0 == release_counter);
- info = SkImageInfo::MakeN32Premul(-10, -10);
- release_counter = 1;
- success = bm.installPixels(info, nullptr, 0, decrement_counter_proc, &release_counter);
- REPORTER_ASSERT(reporter, false == success);
- bm.reset();
- REPORTER_ASSERT(reporter, 0 == release_counter);
- }
- static void test_install(skiatest::Reporter* reporter) {
- bool success;
- SkImageInfo info = SkImageInfo::MakeN32Premul(0, 0);
- SkBitmap bm;
- // make sure we don't assert on an empty install
- success = bm.installPixels(info, nullptr, 0);
- REPORTER_ASSERT(reporter, success);
- // no pixels should be the same as setInfo()
- info = SkImageInfo::MakeN32Premul(10, 10);
- success = bm.installPixels(info, nullptr, 0);
- REPORTER_ASSERT(reporter, success);
- }
- class TestListener : public SkPixelRef::GenIDChangeListener {
- public:
- explicit TestListener(int* ptr) : fPtr(ptr) {}
- void onChange() override { (*fPtr)++; }
- private:
- int* fPtr;
- };
- DEF_TEST(PixelRef_GenIDChange, r) {
- SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10);
- sk_sp<SkPixelRef> pixelRef = SkMallocPixelRef::MakeAllocate(info, 0);
- // Register a listener.
- int count = 0;
- pixelRef->addGenIDChangeListener(new TestListener(&count));
- REPORTER_ASSERT(r, 0 == count);
- // No one has looked at our pixelRef's generation ID, so invalidating it doesn't make sense.
- // (An SkPixelRef tree falls in the forest but there's nobody around to hear it. Do we care?)
- pixelRef->notifyPixelsChanged();
- REPORTER_ASSERT(r, 0 == count);
- // Force the generation ID to be calculated.
- REPORTER_ASSERT(r, 0 != pixelRef->getGenerationID());
- // Our listener was dropped in the first call to notifyPixelsChanged(). This is a no-op.
- pixelRef->notifyPixelsChanged();
- REPORTER_ASSERT(r, 0 == count);
- // Force the generation ID to be recalculated, then add a listener.
- REPORTER_ASSERT(r, 0 != pixelRef->getGenerationID());
- pixelRef->addGenIDChangeListener(new TestListener(&count));
- pixelRef->notifyPixelsChanged();
- REPORTER_ASSERT(r, 1 == count);
- // Quick check that nullptr is safe.
- REPORTER_ASSERT(r, 0 != pixelRef->getGenerationID());
- pixelRef->addGenIDChangeListener(nullptr);
- pixelRef->notifyPixelsChanged();
- test_install(r);
- test_dont_leak_install(r);
- }
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