зеркало из https://github.com/mozilla/moz-skia.git
156 строки
6.2 KiB
C++
156 строки
6.2 KiB
C++
/*
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* Copyright 2013 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 "SkBitmapDevice.h"
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#include "SkCanvas.h"
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#include "SkDraw.h"
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#include "SkLayerDrawLooper.h"
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#include "SkMatrix.h"
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#include "SkPaint.h"
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#include "SkRect.h"
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#include "SkRefCnt.h"
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#include "SkScalar.h"
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#include "SkXfermode.h"
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class FakeDevice : public SkBitmapDevice {
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public:
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FakeDevice() : SkBitmapDevice(SkBitmap::kARGB_8888_Config, 100, 100, false) { }
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virtual void drawRect(const SkDraw& draw, const SkRect& r,
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const SkPaint& paint) SK_OVERRIDE {
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fLastMatrix = *draw.fMatrix;
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INHERITED::drawRect(draw, r, paint);
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}
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SkMatrix fLastMatrix;
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private:
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typedef SkBitmapDevice INHERITED;
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};
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static void test_frontToBack(skiatest::Reporter* reporter) {
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SkAutoTUnref<SkLayerDrawLooper> looper(SkNEW(SkLayerDrawLooper));
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SkLayerDrawLooper::LayerInfo layerInfo;
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// Add the front layer, with the defaults.
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(void)looper->addLayer(layerInfo);
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// Add the back layer, with some layer info set.
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layerInfo.fOffset.set(SkFloatToScalar(10.0f), SkFloatToScalar(20.0f));
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layerInfo.fPaintBits |= SkLayerDrawLooper::kXfermode_Bit;
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SkPaint* layerPaint = looper->addLayer(layerInfo);
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layerPaint->setXfermodeMode(SkXfermode::kSrc_Mode);
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FakeDevice device;
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SkCanvas canvas(&device);
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SkPaint paint;
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looper->init(&canvas);
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// The back layer should come first.
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REPORTER_ASSERT(reporter, looper->next(&canvas, &paint));
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REPORTER_ASSERT(reporter, SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrc_Mode));
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canvas.drawRect(SkRect::MakeWH(SkFloatToScalar(50.0f), SkFloatToScalar(50.0f)), paint);
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REPORTER_ASSERT(reporter, SkFloatToScalar(10.0f) == device.fLastMatrix.getTranslateX());
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REPORTER_ASSERT(reporter, SkFloatToScalar(20.0f) == device.fLastMatrix.getTranslateY());
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paint.reset();
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// Then the front layer.
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REPORTER_ASSERT(reporter, looper->next(&canvas, &paint));
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REPORTER_ASSERT(reporter, SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrcOver_Mode));
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canvas.drawRect(SkRect::MakeWH(SkFloatToScalar(50.0f), SkFloatToScalar(50.0f)), paint);
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REPORTER_ASSERT(reporter, SkFloatToScalar(0.0f) == device.fLastMatrix.getTranslateX());
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REPORTER_ASSERT(reporter, SkFloatToScalar(0.0f) == device.fLastMatrix.getTranslateY());
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// Only two layers were added, so that should be the end.
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REPORTER_ASSERT(reporter, !looper->next(&canvas, &paint));
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}
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static void test_backToFront(skiatest::Reporter* reporter) {
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SkAutoTUnref<SkLayerDrawLooper> looper(SkNEW(SkLayerDrawLooper));
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SkLayerDrawLooper::LayerInfo layerInfo;
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// Add the back layer, with the defaults.
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(void)looper->addLayerOnTop(layerInfo);
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// Add the front layer, with some layer info set.
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layerInfo.fOffset.set(SkFloatToScalar(10.0f), SkFloatToScalar(20.0f));
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layerInfo.fPaintBits |= SkLayerDrawLooper::kXfermode_Bit;
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SkPaint* layerPaint = looper->addLayerOnTop(layerInfo);
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layerPaint->setXfermodeMode(SkXfermode::kSrc_Mode);
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FakeDevice device;
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SkCanvas canvas(&device);
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SkPaint paint;
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looper->init(&canvas);
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// The back layer should come first.
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REPORTER_ASSERT(reporter, looper->next(&canvas, &paint));
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REPORTER_ASSERT(reporter, SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrcOver_Mode));
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canvas.drawRect(SkRect::MakeWH(SkFloatToScalar(50.0f), SkFloatToScalar(50.0f)), paint);
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REPORTER_ASSERT(reporter, SkFloatToScalar(0.0f) == device.fLastMatrix.getTranslateX());
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REPORTER_ASSERT(reporter, SkFloatToScalar(0.0f) == device.fLastMatrix.getTranslateY());
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paint.reset();
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// Then the front layer.
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REPORTER_ASSERT(reporter, looper->next(&canvas, &paint));
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REPORTER_ASSERT(reporter, SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrc_Mode));
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canvas.drawRect(SkRect::MakeWH(SkFloatToScalar(50.0f), SkFloatToScalar(50.0f)), paint);
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REPORTER_ASSERT(reporter, SkFloatToScalar(10.0f) == device.fLastMatrix.getTranslateX());
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REPORTER_ASSERT(reporter, SkFloatToScalar(20.0f) == device.fLastMatrix.getTranslateY());
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// Only two layers were added, so that should be the end.
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REPORTER_ASSERT(reporter, !looper->next(&canvas, &paint));
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}
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static void test_mixed(skiatest::Reporter* reporter) {
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SkAutoTUnref<SkLayerDrawLooper> looper(SkNEW(SkLayerDrawLooper));
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SkLayerDrawLooper::LayerInfo layerInfo;
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// Add the back layer, with the defaults.
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(void)looper->addLayer(layerInfo);
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// Add the front layer, with some layer info set.
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layerInfo.fOffset.set(SkFloatToScalar(10.0f), SkFloatToScalar(20.0f));
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layerInfo.fPaintBits |= SkLayerDrawLooper::kXfermode_Bit;
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SkPaint* layerPaint = looper->addLayerOnTop(layerInfo);
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layerPaint->setXfermodeMode(SkXfermode::kSrc_Mode);
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FakeDevice device;
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SkCanvas canvas(&device);
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SkPaint paint;
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looper->init(&canvas);
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// The back layer should come first.
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REPORTER_ASSERT(reporter, looper->next(&canvas, &paint));
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REPORTER_ASSERT(reporter, SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrcOver_Mode));
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canvas.drawRect(SkRect::MakeWH(SkFloatToScalar(50.0f), SkFloatToScalar(50.0f)), paint);
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REPORTER_ASSERT(reporter, SkFloatToScalar(0.0f) == device.fLastMatrix.getTranslateX());
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REPORTER_ASSERT(reporter, SkFloatToScalar(0.0f) == device.fLastMatrix.getTranslateY());
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paint.reset();
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// Then the front layer.
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REPORTER_ASSERT(reporter, looper->next(&canvas, &paint));
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REPORTER_ASSERT(reporter, SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrc_Mode));
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canvas.drawRect(SkRect::MakeWH(SkFloatToScalar(50.0f), SkFloatToScalar(50.0f)), paint);
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REPORTER_ASSERT(reporter, SkFloatToScalar(10.0f) == device.fLastMatrix.getTranslateX());
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REPORTER_ASSERT(reporter, SkFloatToScalar(20.0f) == device.fLastMatrix.getTranslateY());
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// Only two layers were added, so that should be the end.
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REPORTER_ASSERT(reporter, !looper->next(&canvas, &paint));
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}
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static void TestLayerDrawLooper(skiatest::Reporter* reporter) {
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test_frontToBack(reporter);
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test_backToFront(reporter);
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test_mixed(reporter);
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("LayerDrawLooper", TestLayerDrawLooperClass, TestLayerDrawLooper)
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