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- /*
- * Copyright 2017 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "gm/gm.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkColor.h"
- #include "include/core/SkImage.h"
- #include "include/core/SkImageFilter.h"
- #include "include/core/SkImageInfo.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkRefCnt.h"
- #include "include/core/SkScalar.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- #include "include/core/SkSurface.h"
- #include "include/effects/SkBlurImageFilter.h"
- #include "tools/ToolUtils.h"
- #include <initializer_list>
- #include <utility>
- static sk_sp<SkImage> make_image(SkCanvas* canvas) {
- SkImageInfo info = SkImageInfo::MakeN32Premul(250, 200);
- auto surface = ToolUtils::makeSurface(canvas, info);
- SkCanvas* c = surface->getCanvas();
- SkPaint paint;
- paint.setAntiAlias(true);
- paint.setColor(SK_ColorBLUE);
- c->drawRect(SkRect::MakeIWH(info.width(), info.height()), paint);
- paint.setColor(SK_ColorGREEN);
- c->drawCircle(125, 100, 100, paint);
- paint.setColor(SK_ColorRED);
- c->drawRect(SkRect::MakeIWH(80, 80), paint);
- return surface->makeImageSnapshot();
- }
- static void draw_image(SkCanvas* canvas, const sk_sp<SkImage> image, sk_sp<SkImageFilter> filter) {
- SkAutoCanvasRestore acr(canvas, true);
- SkPaint paint;
- paint.setImageFilter(std::move(filter));
- canvas->translate(SkIntToScalar(30), 0);
- canvas->clipRect(SkRect::MakeIWH(image->width(),image->height()));
- canvas->drawImage(image, 0, 0, &paint);
- }
- namespace skiagm {
- // This GM draws one rectangle, one green inscribed circle, and one red square
- // with different blur settings.
- class ImageBlurClampModeGM : public GM {
- public:
- ImageBlurClampModeGM() {
- this->setBGColor(0xFFCCCCCC);
- }
- protected:
- SkString onShortName() override {
- return SkString("imageblurclampmode");
- }
- SkISize onISize() override {
- return SkISize::Make(850, 920);
- }
- bool runAsBench() const override { return true; }
- void onDraw(SkCanvas* canvas) override {
- sk_sp<SkImage> image(make_image(canvas));
- sk_sp<SkImageFilter> filter;
- canvas->translate(0, 30);
- // Test different kernel size, including the one to launch 2d Gaussian
- // blur.
- for (auto sigma: { 0.6f, 3.0f, 8.0f, 20.0f }) {
- canvas->save();
- // x-only blur
- filter = SkBlurImageFilter::Make(sigma, 0.0f, nullptr, nullptr,
- SkBlurImageFilter::kClamp_TileMode);
- draw_image(canvas, image, std::move(filter));
- canvas->translate(image->width() + 20, 0);
- // y-only blur
- filter = SkBlurImageFilter::Make(0.0f, sigma, nullptr, nullptr,
- SkBlurImageFilter::kClamp_TileMode);
- draw_image(canvas, image, std::move(filter));
- canvas->translate(image->width() + 20, 0);
- // both directions
- filter = SkBlurImageFilter::Make(sigma, sigma, nullptr, nullptr,
- SkBlurImageFilter::kClamp_TileMode);
- draw_image(canvas, image, std::move(filter));
- canvas->translate(image->width() + 20, 0);
- canvas->restore();
- canvas->translate(0, image->height() + 20);
- }
- }
- private:
- typedef GM INHERITED;
- };
- //////////////////////////////////////////////////////////////////////////////
- DEF_GM(return new ImageBlurClampModeGM;)
- }
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