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/*
* Copyright 2012 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 "SkBitmap.h"
#include "SkCanvas.h"
#include "SkDashPathEffect.h"
static SkCanvas* create(SkBitmap::Config config, int w, int h, int rb,
void* addr = NULL) {
SkBitmap bm;
bm.setConfig(config, w, h, rb);
if (addr) {
bm.setPixels(addr);
} else {
bm.allocPixels();
}
return new SkCanvas(bm);
}
static SkCanvas* new_canvas(int w, int h) {
return create(SkBitmap::kARGB_8888_Config, w, h, 0, NULL);
}
///////////////////////////////////////////////////////////////////////////////
// Need to exercise drawing an inverse-path whose bounds intersect the clip,
// but whose edges do not (since its a quad which draws only in the bottom half
// of its bounds).
// In the debug build, we used to assert in this case, until it was fixed.
//
static void test_inversepathwithclip(skiatest::Reporter* reporter) {
SkPath path;
path.moveTo(0, SkIntToScalar(20));
path.quadTo(SkIntToScalar(10), SkIntToScalar(10),
SkIntToScalar(20), SkIntToScalar(20));
path.toggleInverseFillType();
SkPaint paint;
SkAutoTUnref<SkCanvas> canvas(new_canvas(640, 480));
canvas.get()->save();
canvas.get()->clipRect(SkRect::MakeWH(SkIntToScalar(19), SkIntToScalar(11)));
paint.setAntiAlias(false);
canvas.get()->drawPath(path, paint);
paint.setAntiAlias(true);
canvas.get()->drawPath(path, paint);
canvas.get()->restore();
// Now do the test again, with the path flipped, so we only draw in the
// top half of our bounds, and have the clip intersect our bounds at the
// bottom.
path.reset(); // preserves our filltype
path.moveTo(0, SkIntToScalar(10));
path.quadTo(SkIntToScalar(10), SkIntToScalar(20),
SkIntToScalar(20), SkIntToScalar(10));
canvas.get()->clipRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(19),
SkIntToScalar(19), SkIntToScalar(11)));
paint.setAntiAlias(false);
canvas.get()->drawPath(path, paint);
paint.setAntiAlias(true);
canvas.get()->drawPath(path, paint);
}
static void test_bug533(skiatest::Reporter* reporter) {
#ifdef SK_SCALAR_IS_FLOAT
/*
http://code.google.com/p/skia/issues/detail?id=533
This particular test/bug only applies to the float case, where the
coordinates are very large.
*/
SkPath path;
path.moveTo(64, 3);
path.quadTo(-329936, -100000000, 1153, 330003);
SkPaint paint;
paint.setAntiAlias(true);
SkAutoTUnref<SkCanvas> canvas(new_canvas(640, 480));
canvas.get()->drawPath(path, paint);
#endif
}
static void test_crbug_124652(skiatest::Reporter* reporter) {
#ifdef SK_SCALAR_IS_FLOAT
/*
http://code.google.com/p/chromium/issues/detail?id=124652
This particular test/bug only applies to the float case, where
large values can "swamp" small ones.
*/
SkScalar intervals[2] = {837099584, 33450};
SkAutoTUnref<SkDashPathEffect> dash(
new SkDashPathEffect(intervals, 2, -10, false));
#endif
}
static void test_bigcubic(skiatest::Reporter* reporter) {
#ifdef SK_SCALAR_IS_FLOAT
SkPath path;
path.moveTo(64, 3);
path.cubicTo(-329936, -100000000, -329936, 100000000, 1153, 330003);
SkPaint paint;
paint.setAntiAlias(true);
SkAutoTUnref<SkCanvas> canvas(new_canvas(640, 480));
canvas.get()->drawPath(path, paint);
#endif
}
// we used to assert if the bounds of the device (clip) was larger than 32K
// even when the path itself was smaller. We just draw and hope in the debug
// version to not assert.
static void test_giantaa(skiatest::Reporter* reporter) {
const int W = 400;
const int H = 400;
SkAutoTUnref<SkCanvas> canvas(new_canvas(33000, 10));
canvas.get()->clear(0);
SkPaint paint;
paint.setAntiAlias(true);
SkPath path;
path.addOval(SkRect::MakeXYWH(-10, -10, 20 + W, 20 + H));
canvas.get()->drawPath(path, paint);
}
static void TestDrawPath(skiatest::Reporter* reporter) {
test_giantaa(reporter);
test_bug533(reporter);
test_bigcubic(reporter);
test_crbug_124652(reporter);
test_inversepathwithclip(reporter);
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("DrawPath", TestDrawPathClass, TestDrawPath)
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