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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkPath.h"
#include "SkPaint.h"
#include "SkLayerDrawLooper.h"
#include "SkBlurMaskFilter.h"
// temparary api for bicubic, just be sure we can set/clear it
static void test_bicubic(skiatest::Reporter* reporter) {
SkPaint p0;
REPORTER_ASSERT(reporter, 0 == (p0.getFlags() & SkPaint::kBicubicFilterBitmap_Flag));
p0.setFlags(p0.getFlags() | SkPaint::kBicubicFilterBitmap_Flag);
REPORTER_ASSERT(reporter, 0 != (p0.getFlags() & SkPaint::kBicubicFilterBitmap_Flag));
SkPaint p1(p0);
REPORTER_ASSERT(reporter, 0 != (p1.getFlags() & SkPaint::kBicubicFilterBitmap_Flag));
p0.reset();
REPORTER_ASSERT(reporter, 0 == (p0.getFlags() & SkPaint::kBicubicFilterBitmap_Flag));
p0 = p1;
p0.setFlags(p0.getFlags() | SkPaint::kBicubicFilterBitmap_Flag);
}
static void test_copy(skiatest::Reporter* reporter) {
SkPaint paint;
// set a few member variables
paint.setStyle(SkPaint::kStrokeAndFill_Style);
paint.setTextAlign(SkPaint::kLeft_Align);
paint.setStrokeWidth(SkIntToScalar(2));
// set a few pointers
SkLayerDrawLooper* looper = new SkLayerDrawLooper();
paint.setLooper(looper)->unref();
SkMaskFilter* mask = SkBlurMaskFilter::Create(1, SkBlurMaskFilter::kNormal_BlurStyle);
paint.setMaskFilter(mask)->unref();
// copy the paint using the copy constructor and check they are the same
SkPaint copiedPaint = paint;
REPORTER_ASSERT(reporter, paint == copiedPaint);
#ifdef SK_BUILD_FOR_ANDROID
// the copy constructor should preserve the Generation ID
uint32_t paintGenID = paint.getGenerationID();
uint32_t copiedPaintGenID = copiedPaint.getGenerationID();
REPORTER_ASSERT(reporter, paintGenID == copiedPaintGenID);
REPORTER_ASSERT(reporter, !memcmp(&paint, &copiedPaint, sizeof(paint)));
#endif
// copy the paint using the equal operator and check they are the same
copiedPaint = paint;
REPORTER_ASSERT(reporter, paint == copiedPaint);
#ifdef SK_BUILD_FOR_ANDROID
// the equals operator should increment the Generation ID
REPORTER_ASSERT(reporter, paint.getGenerationID() == paintGenID);
REPORTER_ASSERT(reporter, copiedPaint.getGenerationID() != copiedPaintGenID);
copiedPaintGenID = copiedPaint.getGenerationID(); // reset to the new value
REPORTER_ASSERT(reporter, memcmp(&paint, &copiedPaint, sizeof(paint)));
#endif
// clean the paint and check they are back to their initial states
SkPaint cleanPaint;
paint.reset();
copiedPaint.reset();
REPORTER_ASSERT(reporter, cleanPaint == paint);
REPORTER_ASSERT(reporter, cleanPaint == copiedPaint);
#ifdef SK_BUILD_FOR_ANDROID
// the reset function should increment the Generation ID
REPORTER_ASSERT(reporter, paint.getGenerationID() != paintGenID);
REPORTER_ASSERT(reporter, copiedPaint.getGenerationID() != copiedPaintGenID);
REPORTER_ASSERT(reporter, memcmp(&cleanPaint, &paint, sizeof(cleanPaint)));
REPORTER_ASSERT(reporter, memcmp(&cleanPaint, &copiedPaint, sizeof(cleanPaint)));
#endif
}
// found and fixed for webkit: mishandling when we hit recursion limit on
// mostly degenerate cubic flatness test
static void regression_cubic(skiatest::Reporter* reporter) {
SkPath path, stroke;
SkPaint paint;
path.moveTo(SkFloatToScalar(460.2881309415525f),
SkFloatToScalar(303.250847066498f));
path.cubicTo(SkFloatToScalar(463.36378422175284f),
SkFloatToScalar(302.1169735073363f),
SkFloatToScalar(456.32239330810046f),
SkFloatToScalar(304.720354932878f),
SkFloatToScalar(453.15255460013304f),
SkFloatToScalar(305.788586869862f));
SkRect fillR, strokeR;
fillR = path.getBounds();
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkIntToScalar(2));
paint.getFillPath(path, &stroke);
strokeR = stroke.getBounds();
SkRect maxR = fillR;
SkScalar miter = SkMaxScalar(SK_Scalar1, paint.getStrokeMiter());
SkScalar inset = paint.getStrokeJoin() == SkPaint::kMiter_Join ?
SkScalarMul(paint.getStrokeWidth(), miter) :
paint.getStrokeWidth();
maxR.inset(-inset, -inset);
// test that our stroke didn't explode
REPORTER_ASSERT(reporter, maxR.contains(strokeR));
}
// found and fixed for android: not initializing rect for string's of length 0
static void regression_measureText(skiatest::Reporter* reporter) {
SkPaint paint;
paint.setTextSize(SkFloatToScalar(12.0f));
SkRect r;
r.setLTRB(SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN);
// test that the rect was reset
paint.measureText("", 0, &r, SkFloatToScalar(1.0f));
REPORTER_ASSERT(reporter, r.isEmpty());
}
static void TestPaint(skiatest::Reporter* reporter) {
// TODO add general paint tests
test_copy(reporter);
// regression tests
regression_cubic(reporter);
regression_measureText(reporter);
test_bicubic(reporter);
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("Paint", TestPaintClass, TestPaint)
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