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- /*
- * Copyright 2016 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/SkBitmap.h"
- #include "include/core/SkImage.h"
- // https://bug.skia.org/5096
- // Test that when we make an image from a subset of a bitmap, that it
- // has a diff (ID, dimensions) from an image made from the entire
- // bitmap or a different subset of the image.
- DEF_TEST(ImageBitmapIdentity, r) {
- SkBitmap bm, a, b;
- bm.allocN32Pixels(32, 64);
- bm.eraseColor(SK_ColorBLACK);
- bm.setImmutable();
- (void)bm.extractSubset(&a, SkIRect::MakeXYWH(0, 0, 32, 32));
- (void)bm.extractSubset(&b, SkIRect::MakeXYWH(0, 32, 32, 32));
- REPORTER_ASSERT(r, a.getGenerationID() == b.getGenerationID());
- auto img = SkImage::MakeFromBitmap(bm);
- auto imgA = SkImage::MakeFromBitmap(a);
- auto imgB = SkImage::MakeFromBitmap(b);
- REPORTER_ASSERT(r, img->uniqueID() == bm.getGenerationID());
- REPORTER_ASSERT(r, img->uniqueID() != imgA->uniqueID());
- REPORTER_ASSERT(r, img->uniqueID() != imgB->uniqueID());
- REPORTER_ASSERT(r, imgA->uniqueID() != imgB->uniqueID());
- REPORTER_ASSERT(r, imgA->uniqueID() != a.getGenerationID());
- REPORTER_ASSERT(r, imgB->uniqueID() != b.getGenerationID());
- }
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