skia2/tests/PDFInvalidBitmapTest.cpp

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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkDocument.h"
#include "SkImageInfo.h"
#include "SkPixelRef.h"
#include "SkRefCnt.h"
#include "SkStream.h"
#include "Test.h"
namespace {
// SkPixelRef which fails to lock, as a lazy pixel ref might if its pixels
// cannot be generated.
class InvalidPixelRef : public SkPixelRef {
public:
InvalidPixelRef(const SkImageInfo& info) : SkPixelRef(info) {}
private:
bool onNewLockPixels(LockRec*) override { return false; }
void onUnlockPixels() override {
SkDEBUGFAIL("InvalidPixelRef can't be locked");
}
};
SkBitmap make_invalid_bitmap(const SkImageInfo& imageInfo) {
SkBitmap bitmap;
bitmap.setInfo(imageInfo);
bitmap.setPixelRef(sk_make_sp<InvalidPixelRef>(imageInfo), 0 ,0);
return bitmap;
}
SkBitmap make_invalid_bitmap(SkColorType colorType) {
return make_invalid_bitmap(
SkImageInfo::Make(100, 100, colorType, kPremul_SkAlphaType));
}
} // namespace
DEF_TEST(SkPDF_InvalidBitmap, reporter) {
SkDynamicMemoryWStream stream;
sk_sp<SkDocument> document(SkDocument::MakePDF(&stream));
if (!document) {
return;
}
SkCanvas* canvas = document->beginPage(100, 100);
canvas->drawBitmap(SkBitmap(), 0, 0);
canvas->drawBitmap(make_invalid_bitmap(SkImageInfo()), 0, 0);
canvas->drawBitmap(make_invalid_bitmap(kN32_SkColorType), 0, 0);
canvas->drawBitmap(make_invalid_bitmap(kIndex_8_SkColorType), 0, 0);
canvas->drawBitmap(make_invalid_bitmap(kARGB_4444_SkColorType), 0, 0);
canvas->drawBitmap(make_invalid_bitmap(kRGB_565_SkColorType), 0, 0);
canvas->drawBitmap(make_invalid_bitmap(kAlpha_8_SkColorType), 0, 0);
// This test passes if it does not crash.
}