зеркало из https://github.com/mozilla/moz-skia.git
42 строки
1.6 KiB
C++
42 строки
1.6 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkBitmapHasher.h"
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#include "SkBitmap.h"
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#include "SkColor.h"
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#include "Test.h"
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// Word size that is large enough to hold results of any checksum type.
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typedef uint64_t checksum_result;
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// Fill in bitmap with test data.
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static void CreateTestBitmap(SkBitmap* bitmap, int width, int height,
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SkColor color, skiatest::Reporter* reporter) {
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SkImageInfo info = SkImageInfo::MakeN32(width, height, kOpaque_SkAlphaType);
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REPORTER_ASSERT(reporter, bitmap->allocPixels(info));
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bitmap->eraseColor(color);
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}
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DEF_TEST(BitmapHasher, reporter) {
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// Test SkBitmapHasher
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SkBitmap bitmap;
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uint64_t digest;
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// initial test case
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CreateTestBitmap(&bitmap, 333, 555, SK_ColorBLUE, reporter);
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REPORTER_ASSERT(reporter, SkBitmapHasher::ComputeDigest(bitmap, &digest));
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REPORTER_ASSERT(reporter, digest == 0xfb2903562766ef87ULL);
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// same pixel data but different dimensions should yield a different checksum
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CreateTestBitmap(&bitmap, 555, 333, SK_ColorBLUE, reporter);
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REPORTER_ASSERT(reporter, SkBitmapHasher::ComputeDigest(bitmap, &digest));
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REPORTER_ASSERT(reporter, digest == 0xfe04023fb97d0f61ULL);
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// same dimensions but different color should yield a different checksum
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CreateTestBitmap(&bitmap, 555, 333, SK_ColorGREEN, reporter);
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REPORTER_ASSERT(reporter, SkBitmapHasher::ComputeDigest(bitmap, &digest));
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REPORTER_ASSERT(reporter, digest == 0x2423c51cad6d1edcULL);
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}
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