зеркало из https://github.com/mozilla/moz-skia.git
110 строки
4.0 KiB
C++
110 строки
4.0 KiB
C++
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/*
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* Copyright 2011 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 "Test.h"
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#include "SkPath.h"
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#include "SkPaint.h"
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#include "SkLayerDrawLooper.h"
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#include "SkBlurMaskFilter.h"
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static void test_copy(skiatest::Reporter* reporter) {
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SkPaint paint;
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// set a few member variables
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paint.setStyle(SkPaint::kStrokeAndFill_Style);
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paint.setTextAlign(SkPaint::kLeft_Align);
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paint.setStrokeWidth(SkIntToScalar(2));
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// set a few pointers
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SkLayerDrawLooper* looper = new SkLayerDrawLooper();
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paint.setLooper(looper)->unref();
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SkMaskFilter* mask = SkBlurMaskFilter::Create(1, SkBlurMaskFilter::kNormal_BlurStyle);
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paint.setMaskFilter(mask)->unref();
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// copy the paint using the copy constructor and check they are the same
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SkPaint copiedPaint = paint;
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REPORTER_ASSERT(reporter, paint == copiedPaint);
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#ifdef SK_BUILD_FOR_ANDROID
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// the copy constructor should preserve the Generation ID
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int32_t paintGenID = paint.getGenerationID();
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int32_t copiedPaintGenID = copiedPaint.getGenerationID();
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REPORTER_ASSERT(reporter, paintGenID == copiedPaintGenID);
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REPORTER_ASSERT(reporter, !memcmp(&paint, &copiedPaint, sizeof(paint)));
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#endif
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// copy the paint using the equal operator and check they are the same
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copiedPaint = paint;
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REPORTER_ASSERT(reporter, paint == copiedPaint);
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#ifdef SK_BUILD_FOR_ANDROID
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// the equals operator should increment the Generation ID
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REPORTER_ASSERT(reporter, paint.getGenerationID() == paintGenID);
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REPORTER_ASSERT(reporter, copiedPaint.getGenerationID() != copiedPaintGenID);
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copiedPaintGenID = copiedPaint.getGenerationID(); // reset to the new value
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REPORTER_ASSERT(reporter, memcmp(&paint, &copiedPaint, sizeof(paint)));
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#endif
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// clean the paint and check they are back to their initial states
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SkPaint cleanPaint;
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paint.reset();
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copiedPaint.reset();
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REPORTER_ASSERT(reporter, cleanPaint == paint);
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REPORTER_ASSERT(reporter, cleanPaint == copiedPaint);
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#ifdef SK_BUILD_FOR_ANDROID
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// the reset function should increment the Generation ID
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REPORTER_ASSERT(reporter, paint.getGenerationID() != paintGenID);
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REPORTER_ASSERT(reporter, copiedPaint.getGenerationID() != copiedPaintGenID);
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REPORTER_ASSERT(reporter, memcmp(&cleanPaint, &paint, sizeof(cleanPaint)));
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REPORTER_ASSERT(reporter, memcmp(&cleanPaint, &copiedPaint, sizeof(cleanPaint)));
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#endif
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}
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// found and fixed for webkit: mishandling when we hit recursion limit on
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// mostly degenerate cubic flatness test
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static void regression_cubic(skiatest::Reporter* reporter) {
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SkPath path, stroke;
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SkPaint paint;
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path.moveTo(SkFloatToScalar(460.2881309415525f),
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SkFloatToScalar(303.250847066498f));
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path.cubicTo(SkFloatToScalar(463.36378422175284f),
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SkFloatToScalar(302.1169735073363f),
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SkFloatToScalar(456.32239330810046f),
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SkFloatToScalar(304.720354932878f),
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SkFloatToScalar(453.15255460013304f),
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SkFloatToScalar(305.788586869862f));
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SkRect fillR, strokeR;
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fillR = path.getBounds();
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(SkIntToScalar(2));
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paint.getFillPath(path, &stroke);
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strokeR = stroke.getBounds();
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SkRect maxR = fillR;
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SkScalar miter = SkMaxScalar(SK_Scalar1, paint.getStrokeMiter());
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SkScalar inset = paint.getStrokeJoin() == SkPaint::kMiter_Join ?
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SkScalarMul(paint.getStrokeWidth(), miter) :
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paint.getStrokeWidth();
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maxR.inset(-inset, -inset);
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// test that our stroke didn't explode
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REPORTER_ASSERT(reporter, maxR.contains(strokeR));
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}
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static void TestPaint(skiatest::Reporter* reporter) {
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// TODO add general paint tests
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test_copy(reporter);
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// regression tests
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regression_cubic(reporter);
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("Paint", TestPaintClass, TestPaint)
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