зеркало из https://github.com/mozilla/moz-skia.git
79 строки
2.1 KiB
C++
79 строки
2.1 KiB
C++
/*
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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 "SkCanvas.h"
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#include "SkDrawLooper.h"
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#include "Test.h"
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/*
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* Subclass of looper that just draws once, with an offset in X.
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*/
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class TestLooper : public SkDrawLooper {
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public:
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bool fOnce;
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virtual void init(SkCanvas*) SK_OVERRIDE {
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fOnce = true;
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}
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virtual bool next(SkCanvas* canvas, SkPaint*) SK_OVERRIDE {
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if (fOnce) {
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fOnce = false;
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canvas->translate(SkIntToScalar(10), 0);
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return true;
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}
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return false;
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}
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SK_DECLARE_UNFLATTENABLE_OBJECT()
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};
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static void test_drawBitmap(skiatest::Reporter* reporter) {
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SkBitmap src;
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src.setConfig(SkBitmap::kARGB_8888_Config, 10, 10);
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src.allocPixels();
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src.eraseColor(SK_ColorWHITE);
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SkBitmap dst;
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dst.setConfig(SkBitmap::kARGB_8888_Config, 10, 10);
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dst.allocPixels();
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dst.eraseColor(0);
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SkCanvas canvas(dst);
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SkPaint paint;
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// we are initially transparent
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REPORTER_ASSERT(reporter, 0 == *dst.getAddr32(5, 5));
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// we see the bitmap drawn
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canvas.drawBitmap(src, 0, 0, &paint);
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REPORTER_ASSERT(reporter, 0xFFFFFFFF == *dst.getAddr32(5, 5));
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// reverify we are clear again
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dst.eraseColor(0);
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REPORTER_ASSERT(reporter, 0 == *dst.getAddr32(5, 5));
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// if the bitmap is clipped out, we don't draw it
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canvas.drawBitmap(src, SkIntToScalar(-10), 0, &paint);
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REPORTER_ASSERT(reporter, 0 == *dst.getAddr32(5, 5));
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// now install our looper, which will draw, since it internally translates
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// to the left. The test is to ensure that canvas' quickReject machinary
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// allows us through, even though sans-looper we would look like we should
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// be clipped out.
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paint.setLooper(new TestLooper)->unref();
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canvas.drawBitmap(src, SkIntToScalar(-10), 0, &paint);
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REPORTER_ASSERT(reporter, 0xFFFFFFFF == *dst.getAddr32(5, 5));
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}
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static void test(skiatest::Reporter* reporter) {
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test_drawBitmap(reporter);
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("QuickReject", QuickRejectClass, test)
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