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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 "Test.h"
#include "SkMallocPixelRef.h"
#include "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, nullptr, 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, nullptr, 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, nullptr, 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, nullptr);
// 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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