| /* |
| * 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 "include/core/SkBitmap.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkImage.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "tests/Test.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 = bm.asImage(); |
| auto imgA = a.asImage(); |
| auto imgB = b.asImage(); |
| 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()); |
| } |