зеркало из https://github.com/mozilla/moz-skia.git
98 строки
2.5 KiB
C++
98 строки
2.5 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 "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkPicture.h"
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#include "SkRandom.h"
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#include "SkStream.h"
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#ifdef SK_DEBUG
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// Ensure that deleting SkPicturePlayback does not assert. Asserts only fire in debug mode, so only
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// run in debug mode.
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static void test_deleting_empty_playback() {
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SkPicture picture;
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// Creates an SkPictureRecord
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picture.beginRecording(0, 0);
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// Turns that into an SkPicturePlayback
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picture.endRecording();
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// Deletes the old SkPicturePlayback, and creates a new SkPictureRecord
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picture.beginRecording(0, 0);
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}
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// Ensure that serializing an empty picture does not assert. Likewise only runs in debug mode.
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static void test_serializing_empty_picture() {
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SkPicture picture;
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picture.beginRecording(0, 0);
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picture.endRecording();
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SkDynamicMemoryWStream stream;
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picture.serialize(&stream);
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}
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#endif
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static void rand_op(SkCanvas* canvas, SkRandom& rand) {
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SkPaint paint;
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SkRect rect = SkRect::MakeWH(50, 50);
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SkScalar unit = rand.nextUScalar1();
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if (unit <= 0.3) {
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// SkDebugf("save\n");
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canvas->save();
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} else if (unit <= 0.6) {
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// SkDebugf("restore\n");
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canvas->restore();
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} else if (unit <= 0.9) {
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// SkDebugf("clip\n");
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canvas->clipRect(rect);
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} else {
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// SkDebugf("draw\n");
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canvas->drawPaint(paint);
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}
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}
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static void test_peephole(skiatest::Reporter* reporter) {
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SkRandom rand;
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for (int j = 0; j < 100; j++) {
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SkRandom rand2(rand.getSeed()); // remember the seed
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SkPicture picture;
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SkCanvas* canvas = picture.beginRecording(100, 100);
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for (int i = 0; i < 1000; ++i) {
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rand_op(canvas, rand);
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}
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picture.endRecording();
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}
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{
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SkPicture picture;
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SkCanvas* canvas = picture.beginRecording(100, 100);
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SkRect rect = SkRect::MakeWH(50, 50);
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for (int i = 0; i < 100; ++i) {
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canvas->save();
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}
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while (canvas->getSaveCount() > 1) {
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canvas->clipRect(rect);
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canvas->restore();
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}
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picture.endRecording();
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}
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}
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static void TestPicture(skiatest::Reporter* reporter) {
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#ifdef SK_DEBUG
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test_deleting_empty_playback();
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test_serializing_empty_picture();
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#endif
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test_peephole(reporter);
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("Pictures", PictureTestClass, TestPicture)
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