9d5f76a250
the clip, but whose edges do not (e.g. a curve). We used to overdraw a section (and assert). git-svn-id: http://skia.googlecode.com/svn/trunk@3809 2bbb7eff-a529-9590-31e7-b0007b416f81
145 lines
4.4 KiB
C++
145 lines
4.4 KiB
C++
/*
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* Copyright 2012 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 "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkDashPathEffect.h"
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static SkCanvas* create(SkBitmap::Config config, int w, int h, int rb,
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void* addr = NULL) {
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SkBitmap bm;
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bm.setConfig(config, w, h, rb);
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if (addr) {
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bm.setPixels(addr);
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} else {
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bm.allocPixels();
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}
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return new SkCanvas(bm);
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}
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static SkCanvas* new_canvas(int w, int h) {
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return create(SkBitmap::kARGB_8888_Config, w, h, 0, NULL);
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}
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///////////////////////////////////////////////////////////////////////////////
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// Need to exercise drawing an inverse-path whose bounds intersect the clip,
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// but whose edges do not (since its a quad which draws only in the bottom half
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// of its bounds).
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// In the debug build, we used to assert in this case, until it was fixed.
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//
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static void test_inversepathwithclip(skiatest::Reporter* reporter) {
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SkPath path;
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path.moveTo(0, SkIntToScalar(20));
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path.quadTo(SkIntToScalar(10), SkIntToScalar(10),
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SkIntToScalar(20), SkIntToScalar(20));
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path.toggleInverseFillType();
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SkPaint paint;
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SkAutoTUnref<SkCanvas> canvas(new_canvas(640, 480));
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canvas.get()->save();
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canvas.get()->clipRect(SkRect::MakeWH(SkIntToScalar(19), SkIntToScalar(11)));
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paint.setAntiAlias(false);
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canvas.get()->drawPath(path, paint);
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paint.setAntiAlias(true);
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canvas.get()->drawPath(path, paint);
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canvas.get()->restore();
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// Now do the test again, with the path flipped, so we only draw in the
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// top half of our bounds, and have the clip intersect our bounds at the
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// bottom.
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path.reset(); // preserves our filltype
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path.moveTo(0, SkIntToScalar(10));
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path.quadTo(SkIntToScalar(10), SkIntToScalar(20),
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SkIntToScalar(20), SkIntToScalar(10));
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canvas.get()->clipRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(19),
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SkIntToScalar(19), SkIntToScalar(11)));
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paint.setAntiAlias(false);
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canvas.get()->drawPath(path, paint);
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paint.setAntiAlias(true);
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canvas.get()->drawPath(path, paint);
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}
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static void test_bug533(skiatest::Reporter* reporter) {
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#ifdef SK_SCALAR_IS_FLOAT
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/*
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http://code.google.com/p/skia/issues/detail?id=533
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This particular test/bug only applies to the float case, where the
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coordinates are very large.
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*/
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SkPath path;
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path.moveTo(64, 3);
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path.quadTo(-329936, -100000000, 1153, 330003);
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SkPaint paint;
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paint.setAntiAlias(true);
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SkAutoTUnref<SkCanvas> canvas(new_canvas(640, 480));
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canvas.get()->drawPath(path, paint);
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#endif
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}
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static void test_crbug_124652(skiatest::Reporter* reporter) {
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#ifdef SK_SCALAR_IS_FLOAT
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/*
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http://code.google.com/p/chromium/issues/detail?id=124652
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This particular test/bug only applies to the float case, where
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large values can "swamp" small ones.
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*/
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SkScalar intervals[2] = {837099584, 33450};
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SkAutoTUnref<SkDashPathEffect> dash(
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new SkDashPathEffect(intervals, 2, -10, false));
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#endif
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}
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static void test_bigcubic(skiatest::Reporter* reporter) {
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#ifdef SK_SCALAR_IS_FLOAT
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SkPath path;
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path.moveTo(64, 3);
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path.cubicTo(-329936, -100000000, -329936, 100000000, 1153, 330003);
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SkPaint paint;
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paint.setAntiAlias(true);
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SkAutoTUnref<SkCanvas> canvas(new_canvas(640, 480));
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canvas.get()->drawPath(path, paint);
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#endif
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}
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// we used to assert if the bounds of the device (clip) was larger than 32K
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// even when the path itself was smaller. We just draw and hope in the debug
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// version to not assert.
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static void test_giantaa(skiatest::Reporter* reporter) {
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const int W = 400;
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const int H = 400;
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SkAutoTUnref<SkCanvas> canvas(new_canvas(33000, 10));
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canvas.get()->clear(0);
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SkPaint paint;
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paint.setAntiAlias(true);
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SkPath path;
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path.addOval(SkRect::MakeXYWH(-10, -10, 20 + W, 20 + H));
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canvas.get()->drawPath(path, paint);
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}
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static void TestDrawPath(skiatest::Reporter* reporter) {
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test_giantaa(reporter);
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test_bug533(reporter);
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test_bigcubic(reporter);
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test_crbug_124652(reporter);
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test_inversepathwithclip(reporter);
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("DrawPath", TestDrawPathClass, TestDrawPath)
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