1 /* 2 * Copyright 2014 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "gm.h" 9 #include "SkMatrixImageFilter.h" 10 #include "SkRandom.h" 11 12 #define WIDTH 640 13 #define HEIGHT 480 14 15 #define RESIZE_FACTOR SkIntToScalar(2) 16 17 namespace skiagm { 18 19 class ImageResizeTiledGM : public GM { 20 public: 21 ImageResizeTiledGM() { 22 } 23 24 protected: 25 virtual uint32_t onGetFlags() const SK_OVERRIDE { return kNoBBH_Flag; } 26 27 virtual SkString onShortName() SK_OVERRIDE { 28 return SkString("imageresizetiled"); 29 } 30 31 virtual SkISize onISize() SK_OVERRIDE { 32 return SkISize::Make(WIDTH, HEIGHT); 33 } 34 35 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { 36 SkPaint paint; 37 SkMatrix matrix; 38 matrix.setScale(RESIZE_FACTOR, RESIZE_FACTOR); 39 SkAutoTUnref<SkImageFilter> imageFilter( 40 SkMatrixImageFilter::Create(matrix, SkPaint::kNone_FilterLevel)); 41 paint.setImageFilter(imageFilter.get()); 42 const SkScalar tile_size = SkIntToScalar(100); 43 SkRect bounds; 44 canvas->getClipBounds(&bounds); 45 for (SkScalar y = 0; y < HEIGHT; y += tile_size) { 46 for (SkScalar x = 0; x < WIDTH; x += tile_size) { 47 canvas->save(); 48 canvas->clipRect(SkRect::MakeXYWH(x, y, tile_size, tile_size)); 49 canvas->scale(SkScalarInvert(RESIZE_FACTOR), 50 SkScalarInvert(RESIZE_FACTOR)); 51 canvas->saveLayer(NULL, &paint); 52 const char* str[] = { 53 "The quick", 54 "brown fox", 55 "jumped over", 56 "the lazy dog.", 57 }; 58 SkPaint textPaint; 59 textPaint.setAntiAlias(true); 60 sk_tool_utils::set_portable_typeface(&textPaint); 61 textPaint.setTextSize(SkIntToScalar(100)); 62 int posY = 0; 63 for (unsigned i = 0; i < SK_ARRAY_COUNT(str); i++) { 64 posY += 100; 65 canvas->drawText(str[i], strlen(str[i]), SkIntToScalar(0), 66 SkIntToScalar(posY), textPaint); 67 } 68 canvas->restore(); 69 canvas->restore(); 70 } 71 } 72 } 73 74 private: 75 typedef GM INHERITED; 76 }; 77 78 ////////////////////////////////////////////////////////////////////////////// 79 80 DEF_GM(return new ImageResizeTiledGM(); ) 81 82 } 83