| /* |
| * 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/SkImageFilters.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->clipIRect(image->bounds()); |
| canvas->drawImage(image, 0, 0, SkSamplingOptions(), &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 getName() const override { return SkString("imageblurclampmode"); } |
| |
| SkISize getISize() 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 = SkImageFilters::Blur( |
| sigma, 0.0f, SkTileMode::kClamp, nullptr, image->bounds()); |
| draw_image(canvas, image, std::move(filter)); |
| canvas->translate(image->width() + 20, 0); |
| |
| // y-only blur |
| filter = SkImageFilters::Blur( |
| 0.0f, sigma, SkTileMode::kClamp, nullptr, image->bounds()); |
| draw_image(canvas, image, std::move(filter)); |
| canvas->translate(image->width() + 20, 0); |
| |
| // both directions |
| filter = SkImageFilters::Blur( |
| sigma, sigma, SkTileMode::kClamp, nullptr, image->bounds()); |
| draw_image(canvas, image, std::move(filter)); |
| canvas->translate(image->width() + 20, 0); |
| |
| canvas->restore(); |
| |
| canvas->translate(0, image->height() + 20); |
| } |
| } |
| |
| private: |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new ImageBlurClampModeGM;) |
| } // namespace skiagm |