| /* |
| * Copyright 2014 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/SkFont.h" |
| #include "include/core/SkImageFilter.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTypeface.h" |
| #include "include/core/SkTypes.h" |
| #include "include/effects/SkImageFilters.h" |
| #include "tools/ToolUtils.h" |
| |
| #define WIDTH 640 |
| #define HEIGHT 480 |
| |
| namespace skiagm { |
| |
| class ImageBlurTiledGM : public GM { |
| public: |
| ImageBlurTiledGM(SkScalar sigmaX, SkScalar sigmaY) |
| : fSigmaX(sigmaX), fSigmaY(sigmaY) { |
| } |
| |
| protected: |
| SkString onShortName() override { |
| return SkString("imageblurtiled"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(WIDTH, HEIGHT); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkPaint paint; |
| paint.setImageFilter(SkImageFilters::Blur(fSigmaX, fSigmaY, nullptr)); |
| const SkScalar tileSize = SkIntToScalar(128); |
| SkRect bounds = canvas->getLocalClipBounds(); |
| for (SkScalar y = bounds.top(); y < bounds.bottom(); y += tileSize) { |
| for (SkScalar x = bounds.left(); x < bounds.right(); x += tileSize) { |
| canvas->save(); |
| canvas->clipRect(SkRect::MakeXYWH(x, y, tileSize, tileSize)); |
| canvas->saveLayer(nullptr, &paint); |
| const char* str[] = { |
| "The quick", |
| "brown fox", |
| "jumped over", |
| "the lazy dog.", |
| }; |
| SkFont font(ToolUtils::create_portable_typeface(), 100); |
| int posY = 0; |
| for (unsigned i = 0; i < std::size(str); i++) { |
| posY += 100; |
| canvas->drawString(str[i], 0, SkIntToScalar(posY), font, SkPaint()); |
| } |
| canvas->restore(); |
| canvas->restore(); |
| } |
| } |
| } |
| |
| private: |
| SkScalar fSigmaX; |
| SkScalar fSigmaY; |
| |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new ImageBlurTiledGM(3.0f, 3.0f);) |
| |
| } // namespace skiagm |