| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "sk_tool_utils.h" |
| #include "SkColorFilterImageFilter.h" |
| #include "SkColorMatrixFilter.h" |
| #include "SkImage.h" |
| #include "SkImageSource.h" |
| #include "SkTileImageFilter.h" |
| #include "gm.h" |
| |
| #define WIDTH 400 |
| #define HEIGHT 100 |
| #define MARGIN 12 |
| |
| namespace skiagm { |
| |
| class TileImageFilterGM : public GM { |
| public: |
| TileImageFilterGM() { |
| this->setBGColor(0xFF000000); |
| } |
| |
| protected: |
| SkString onShortName() override { |
| return SkString("tileimagefilter"); |
| } |
| |
| SkISize onISize() override{ |
| return SkISize::Make(WIDTH, HEIGHT); |
| } |
| |
| void onOnceBeforeDraw() override { |
| fBitmap = SkImage::MakeFromBitmap( |
| sk_tool_utils::create_string_bitmap(50, 50, 0xD000D000, 10, 45, 50, "e")); |
| |
| fCheckerboard = SkImage::MakeFromBitmap( |
| sk_tool_utils::create_checkerboard_bitmap(80, 80, |
| sk_tool_utils::color_to_565(0xFFA0A0A0), |
| sk_tool_utils::color_to_565(0xFF404040), |
| 8)); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| canvas->clear(SK_ColorBLACK); |
| SkPaint red; |
| red.setColor(SK_ColorRED); |
| red.setStyle(SkPaint::kStroke_Style); |
| SkPaint blue; |
| blue.setColor(SK_ColorBLUE); |
| blue.setStyle(SkPaint::kStroke_Style); |
| |
| int x = 0, y = 0; |
| for (size_t i = 0; i < 4; i++) { |
| SkImage* image = (i & 0x01) ? fCheckerboard.get() : fBitmap.get(); |
| SkRect srcRect = SkRect::MakeXYWH(SkIntToScalar(image->width()/4), |
| SkIntToScalar(image->height()/4), |
| SkIntToScalar(image->width()/(i+1)), |
| SkIntToScalar(image->height()/(i+1))); |
| SkRect dstRect = SkRect::MakeXYWH(SkIntToScalar(i * 8), |
| SkIntToScalar(i * 4), |
| SkIntToScalar(image->width() - i * 12), |
| SkIntToScalar(image->height()) - i * 12); |
| SkAutoTUnref<SkImageFilter> tileInput(SkImageSource::Create(image)); |
| SkAutoTUnref<SkImageFilter> filter( |
| SkTileImageFilter::Create(srcRect, dstRect, tileInput)); |
| canvas->save(); |
| canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); |
| SkPaint paint; |
| paint.setImageFilter(filter); |
| canvas->drawImage(fBitmap.get(), 0, 0, &paint); |
| canvas->drawRect(srcRect, red); |
| canvas->drawRect(dstRect, blue); |
| canvas->restore(); |
| x += image->width() + MARGIN; |
| if (x + image->width() > WIDTH) { |
| x = 0; |
| y += image->height() + MARGIN; |
| } |
| } |
| |
| SkScalar matrix[20] = { SK_Scalar1, 0, 0, 0, 0, |
| 0, SK_Scalar1, 0, 0, 0, |
| 0, 0, SK_Scalar1, 0, 0, |
| 0, 0, 0, SK_Scalar1, 0 }; |
| |
| SkRect srcRect = SkRect::MakeWH(SkIntToScalar(fBitmap->width()), |
| SkIntToScalar(fBitmap->height())); |
| SkRect dstRect = SkRect::MakeWH(SkIntToScalar(fBitmap->width() * 2), |
| SkIntToScalar(fBitmap->height() * 2)); |
| SkAutoTUnref<SkImageFilter> tile(SkTileImageFilter::Create(srcRect, dstRect, nullptr)); |
| SkAutoTUnref<SkColorFilter> cf(SkColorMatrixFilter::Create(matrix)); |
| |
| SkAutoTUnref<SkImageFilter> cfif(SkColorFilterImageFilter::Create(cf, tile.get())); |
| SkPaint paint; |
| paint.setImageFilter(cfif); |
| canvas->save(); |
| canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); |
| canvas->clipRect(dstRect); |
| canvas->saveLayer(&dstRect, &paint); |
| canvas->drawImage(fBitmap.get(), 0, 0); |
| canvas->restore(); |
| canvas->drawRect(srcRect, red); |
| canvas->drawRect(dstRect, blue); |
| canvas->restore(); |
| } |
| private: |
| sk_sp<SkImage> fBitmap, fCheckerboard; |
| |
| typedef GM INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new TileImageFilterGM;) |
| } |