bc9845bb60
It's no longer used in Chrome. BUG=skia: R=bsalomon@google.com Author: senorblanco@chromium.org Review URL: https://codereview.chromium.org/407203002
166 lines
5.9 KiB
C++
166 lines
5.9 KiB
C++
/*
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* Copyright 2014 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 "SkColor.h"
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#include "SkBitmapSource.h"
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#include "SkBlurImageFilter.h"
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#include "SkDisplacementMapEffect.h"
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#include "SkDropShadowImageFilter.h"
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#include "SkGradientShader.h"
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#include "SkMorphologyImageFilter.h"
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#include "SkOffsetImageFilter.h"
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#include "SkPerlinNoiseShader.h"
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#include "SkRectShaderImageFilter.h"
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#include "SkMatrixImageFilter.h"
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#include "SkScalar.h"
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#define RESIZE_FACTOR_X SkIntToScalar(2)
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#define RESIZE_FACTOR_Y SkIntToScalar(5)
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namespace skiagm {
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class ImageFiltersClippedGM : public GM {
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public:
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ImageFiltersClippedGM() : fInitialized(false) {
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this->setBGColor(0x00000000);
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}
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protected:
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virtual uint32_t onGetFlags() const SK_OVERRIDE {
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return kSkipTiled_Flag;
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}
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virtual SkString onShortName() {
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return SkString("imagefiltersclipped");
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}
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virtual SkISize onISize() {
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return SkISize::Make(860, 500);
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}
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void make_checkerboard() {
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fCheckerboard.allocN32Pixels(64, 64);
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SkCanvas canvas(fCheckerboard);
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canvas.clear(0x00000000);
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SkPaint darkPaint;
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darkPaint.setColor(0xFF404040);
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SkPaint lightPaint;
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lightPaint.setColor(0xFFA0A0A0);
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for (int y = 0; y < 64; y += 16) {
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for (int x = 0; x < 64; x += 16) {
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canvas.save();
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canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
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canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
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canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
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canvas.restore();
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}
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}
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}
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void make_gradient_circle(int width, int height) {
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SkScalar x = SkIntToScalar(width / 2);
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SkScalar y = SkIntToScalar(height / 2);
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SkScalar radius = SkMinScalar(x, y) * 0.8f;
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fGradientCircle.allocN32Pixels(width, height);
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SkCanvas canvas(fGradientCircle);
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canvas.clear(0x00000000);
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SkColor colors[2];
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colors[0] = SK_ColorWHITE;
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colors[1] = SK_ColorBLACK;
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SkAutoTUnref<SkShader> shader(
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SkGradientShader::CreateRadial(SkPoint::Make(x, y), radius, colors, NULL, 2,
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SkShader::kClamp_TileMode)
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);
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SkPaint paint;
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paint.setShader(shader);
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canvas.drawCircle(x, y, radius, paint);
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}
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virtual void onDraw(SkCanvas* canvas) {
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if (!fInitialized) {
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this->make_checkerboard();
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this->make_gradient_circle(64, 64);
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fInitialized = true;
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}
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canvas->clear(0x00000000);
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SkAutoTUnref<SkImageFilter> gradient(SkBitmapSource::Create(fGradientCircle));
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SkAutoTUnref<SkImageFilter> checkerboard(SkBitmapSource::Create(fCheckerboard));
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SkAutoTUnref<SkShader> noise(SkPerlinNoiseShader::CreateFractalNoise(
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SkDoubleToScalar(0.1), SkDoubleToScalar(0.05), 1, 0));
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SkMatrix resizeMatrix;
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resizeMatrix.setScale(RESIZE_FACTOR_X, RESIZE_FACTOR_Y);
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SkImageFilter* filters[] = {
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SkBlurImageFilter::Create(SkIntToScalar(12), SkIntToScalar(12)),
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SkDropShadowImageFilter::Create(SkIntToScalar(10), SkIntToScalar(10),
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SkIntToScalar(3), SkIntToScalar(3),
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SK_ColorGREEN),
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SkDisplacementMapEffect::Create(SkDisplacementMapEffect::kR_ChannelSelectorType,
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SkDisplacementMapEffect::kR_ChannelSelectorType,
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SkIntToScalar(12),
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gradient.get(),
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checkerboard.get()),
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SkDilateImageFilter::Create(2, 2, checkerboard.get()),
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SkErodeImageFilter::Create(2, 2, checkerboard.get()),
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SkOffsetImageFilter::Create(SkIntToScalar(-16), SkIntToScalar(32)),
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SkMatrixImageFilter::Create(resizeMatrix, SkPaint::kNone_FilterLevel),
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SkRectShaderImageFilter::Create(noise),
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};
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SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64));
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SkScalar margin = SkIntToScalar(16);
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SkRect bounds = r;
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bounds.outset(margin, margin);
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for (int xOffset = 0; xOffset < 80; xOffset += 16) {
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canvas->save();
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bounds.fLeft = SkIntToScalar(xOffset);
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for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
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SkPaint paint;
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paint.setColor(SK_ColorWHITE);
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paint.setImageFilter(filters[i]);
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paint.setAntiAlias(true);
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canvas->save();
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canvas->clipRect(bounds);
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if (5 == i) {
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canvas->translate(SkIntToScalar(16), SkIntToScalar(-32));
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} else if (6 == i) {
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canvas->scale(SkScalarInvert(RESIZE_FACTOR_X),
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SkScalarInvert(RESIZE_FACTOR_Y));
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}
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canvas->drawCircle(r.centerX(), r.centerY(),
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SkScalarDiv(r.width()*2, SkIntToScalar(5)), paint);
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canvas->restore();
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canvas->translate(r.width() + margin, 0);
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}
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canvas->restore();
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canvas->translate(0, r.height() + margin);
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}
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for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
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SkSafeUnref(filters[i]);
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}
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}
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private:
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bool fInitialized;
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SkBitmap fCheckerboard;
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SkBitmap fGradientCircle;
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory(void*) { return new ImageFiltersClippedGM; }
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static GMRegistry reg(MyFactory);
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}
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