| /* |
| * Copyright 2016 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/SkImageFilter.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRRect.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" |
| |
| #define WIDTH 512 |
| #define HEIGHT 512 |
| |
| namespace skiagm { |
| |
| class ComplexClipBlurTiledGM : public GM { |
| public: |
| ComplexClipBlurTiledGM() { |
| } |
| |
| protected: |
| SkString getName() const override { return SkString("complexclip_blur_tiled"); } |
| |
| SkISize getISize() override { return SkISize::Make(WIDTH, HEIGHT); } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkPaint blurPaint; |
| blurPaint.setImageFilter(SkImageFilters::Blur(5.0f, 5.0f, nullptr)); |
| const SkScalar tileSize = SkIntToScalar(128); |
| SkRect bounds = canvas->getLocalClipBounds(); |
| int ts = SkScalarCeilToInt(tileSize); |
| SkImageInfo info = SkImageInfo::MakeN32Premul(ts, ts); |
| auto tileSurface(ToolUtils::makeSurface(canvas, info)); |
| SkCanvas* tileCanvas = tileSurface->getCanvas(); |
| for (SkScalar y = bounds.top(); y < bounds.bottom(); y += tileSize) { |
| for (SkScalar x = bounds.left(); x < bounds.right(); x += tileSize) { |
| tileCanvas->save(); |
| tileCanvas->clear(0); |
| tileCanvas->translate(-x, -y); |
| SkRect rect = SkRect::MakeWH(WIDTH, HEIGHT); |
| tileCanvas->saveLayer(&rect, &blurPaint); |
| SkRRect rrect = SkRRect::MakeRectXY(rect.makeInset(20, 20), 25, 25); |
| tileCanvas->clipRRect(rrect, SkClipOp::kDifference, true); |
| SkPaint paint; |
| tileCanvas->drawRect(rect, paint); |
| tileCanvas->restore(); |
| tileCanvas->restore(); |
| canvas->drawImage(tileSurface->makeImageSnapshot().get(), x, y); |
| } |
| } |
| } |
| |
| private: |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new ComplexClipBlurTiledGM;) |
| |
| } // namespace skiagm |