skia2/tests/image-bitmap.cpp
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

35 lines
1.3 KiB
C++

/*
* 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());
}