зеркало из https://github.com/mozilla/moz-skia.git
118 строки
3.6 KiB
C++
118 строки
3.6 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 "gm.h"
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#include "SkCanvas.h"
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#include "SkColorFilter.h"
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#include "SkColorPriv.h"
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#include "SkShader.h"
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#include "SkTestImageFilters.h"
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#define FILTER_WIDTH SkIntToScalar(150)
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#define FILTER_HEIGHT SkIntToScalar(200)
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static SkImageFilter* make0() { return new SkDownSampleImageFilter(SK_Scalar1 / 5); }
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static SkImageFilter* make1() { return new SkOffsetImageFilter(SkIntToScalar(16), SkIntToScalar(16)); }
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static SkImageFilter* make2() {
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SkColorFilter* cf = SkColorFilter::CreateModeFilter(SK_ColorBLUE,
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SkXfermode::kSrcIn_Mode);
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SkAutoUnref aur(cf);
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return new SkColorFilterImageFilter(cf);
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}
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static SkImageFilter* make3() {
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SkImageFilter* outer = new SkOffsetImageFilter(SkIntToScalar(16), SkIntToScalar(16));
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SkImageFilter* inner = new SkDownSampleImageFilter(SK_Scalar1 / 5);
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SkAutoUnref aur0(outer);
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SkAutoUnref aur1(inner);
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return new SkComposeImageFilter(outer, inner);
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}
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static SkImageFilter* make4() {
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SkImageFilter* first = new SkOffsetImageFilter(SkIntToScalar(16), SkIntToScalar(16));
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SkImageFilter* second = new SkDownSampleImageFilter(SK_Scalar1 / 5);
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SkAutoUnref aur0(first);
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SkAutoUnref aur1(second);
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return new SkMergeImageFilter(first, second);
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}
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static SkImageFilter* make5() {
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SkImageFilter* outer = new SkOffsetImageFilter(SkIntToScalar(16), SkIntToScalar(16));
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SkImageFilter* inner = new SkDownSampleImageFilter(SK_Scalar1 / 5);
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SkAutoUnref aur0(outer);
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SkAutoUnref aur1(inner);
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SkImageFilter* compose = new SkComposeImageFilter(outer, inner);
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SkAutoUnref aur2(compose);
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SkColorFilter* cf = SkColorFilter::CreateModeFilter(0x880000FF,
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SkXfermode::kSrcIn_Mode);
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SkAutoUnref aur3(cf);
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SkImageFilter* blue = new SkColorFilterImageFilter(cf);
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SkAutoUnref aur4(blue);
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return new SkMergeImageFilter(compose, blue);
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}
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static void draw0(SkCanvas* canvas) {
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SkPaint p;
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p.setAntiAlias(true);
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SkRect r = SkRect::MakeWH(FILTER_WIDTH, FILTER_HEIGHT);
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r.inset(SK_Scalar1, SK_Scalar1);
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p.setColor(SK_ColorRED);
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canvas->drawOval(r, p);
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}
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class TestImageFiltersGM : public skiagm::GM {
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public:
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TestImageFiltersGM () {}
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protected:
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virtual SkString onShortName() {
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return SkString("testimagefilters");
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}
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virtual SkISize onISize() { return SkISize::Make(640, 480); }
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virtual void onDraw(SkCanvas* canvas) {
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static SkImageFilter* (*gFilterProc[])() = {
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make0, make1, make2, make3, make4, make5
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};
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const SkRect bounds = SkRect::MakeWH(FILTER_WIDTH, FILTER_HEIGHT);
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const SkScalar dx = bounds.width() * 8 / 7;
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const SkScalar dy = bounds.height() * 8 / 7;
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for (size_t i = 0; i < SK_ARRAY_COUNT(gFilterProc); ++i) {
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int ix = i % 3;
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int iy = i / 3;
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SkPaint paint;
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paint.setImageFilter(gFilterProc[i]())->unref();
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SkAutoCanvasRestore acr(canvas, true);
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canvas->translate(ix * dx, iy * dy);
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SkPaint p;
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p.setColor(0xFFCCCCCC);
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canvas->drawRect(bounds, p);
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canvas->saveLayer(&bounds, &paint);
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draw0(canvas);
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}
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}
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static skiagm::GM* MyFactory(void*) { return new TestImageFiltersGM; }
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static skiagm::GMRegistry reg(MyFactory);
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