1 /* 2 * Copyright 2011 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 "sk_tool_utils.h" 10 11 #include "Resources.h" 12 #include "SkGradientShader.h" 13 #include "SkStream.h" 14 #include "SkTypeface.h" 15 16 static void setTypeface(SkPaint* paint, const char name[], SkFontStyle style) { 17 sk_tool_utils::set_portable_typeface(paint, name, style); 18 } 19 20 static SkSize computeSize(const SkBitmap& bm, const SkMatrix& mat) { 21 SkRect bounds = SkRect::MakeWH(SkIntToScalar(bm.width()), 22 SkIntToScalar(bm.height())); 23 mat.mapRect(&bounds); 24 return SkSize::Make(bounds.width(), bounds.height()); 25 } 26 27 static void draw_cell(SkCanvas* canvas, const SkBitmap& bm, const SkMatrix& mat, SkScalar dx, 28 SkFilterQuality lvl) { 29 SkPaint paint; 30 paint.setFilterQuality(lvl); 31 32 SkAutoCanvasRestore acr(canvas, true); 33 canvas->translate(dx, 0); 34 canvas->concat(mat); 35 canvas->drawBitmap(bm, 0, 0, &paint); 36 } 37 38 static void draw_row(SkCanvas* canvas, const SkBitmap& bm, const SkMatrix& mat, SkScalar dx) { 39 draw_cell(canvas, bm, mat, 0 * dx, kNone_SkFilterQuality); 40 draw_cell(canvas, bm, mat, 1 * dx, kLow_SkFilterQuality); 41 draw_cell(canvas, bm, mat, 2 * dx, kMedium_SkFilterQuality); 42 draw_cell(canvas, bm, mat, 3 * dx, kHigh_SkFilterQuality); 43 } 44 45 class FilterBitmapGM : public skiagm::GM { 46 void onOnceBeforeDraw() override { 47 48 this->makeBitmap(); 49 50 SkScalar cx = SkScalarHalf(fBM.width()); 51 SkScalar cy = SkScalarHalf(fBM.height()); 52 SkScalar scale = this->getScale(); 53 54 // these two matrices use a scale factor configured by the subclass 55 fMatrix[0].setScale(scale, scale); 56 fMatrix[1].setRotate(30, cx, cy); fMatrix[1].postScale(scale, scale); 57 58 // up/down scaling mix 59 fMatrix[2].setScale(0.7f, 1.05f); 60 } 61 62 public: 63 SkBitmap fBM; 64 SkMatrix fMatrix[3]; 65 SkString fName; 66 67 FilterBitmapGM() 68 { 69 this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD)); 70 } 71 72 protected: 73 74 SkString onShortName() override { 75 return fName; 76 } 77 78 SkISize onISize() override { 79 return SkISize::Make(1024, 768); 80 } 81 82 virtual void makeBitmap() = 0; 83 virtual SkScalar getScale() = 0; 84 85 void onDraw(SkCanvas* canvas) override { 86 87 canvas->translate(10, 10); 88 for (size_t i = 0; i < SK_ARRAY_COUNT(fMatrix); ++i) { 89 SkSize size = computeSize(fBM, fMatrix[i]); 90 size.fWidth += 20; 91 size.fHeight += 20; 92 93 draw_row(canvas, fBM, fMatrix[i], size.fWidth); 94 canvas->translate(0, size.fHeight); 95 } 96 } 97 98 private: 99 typedef skiagm::GM INHERITED; 100 }; 101 102 class FilterBitmapTextGM: public FilterBitmapGM { 103 public: 104 FilterBitmapTextGM(float textSize) 105 : fTextSize(textSize) 106 { 107 fName.printf("filterbitmap_text_%.2fpt", fTextSize); 108 } 109 110 protected: 111 float fTextSize; 112 113 SkScalar getScale() override { 114 return 32.f/fTextSize; 115 } 116 117 void makeBitmap() override { 118 fBM.allocN32Pixels(int(fTextSize * 8), int(fTextSize * 6)); 119 SkCanvas canvas(fBM); 120 canvas.drawColor(SK_ColorWHITE); 121 122 SkPaint paint; 123 paint.setAntiAlias(true); 124 paint.setSubpixelText(true); 125 paint.setTextSize(fTextSize); 126 127 setTypeface(&paint, "serif", SkFontStyle()); 128 canvas.drawText("Hamburgefons", 12, fTextSize/2, 1.2f*fTextSize, paint); 129 setTypeface(&paint, "serif", SkFontStyle::FromOldStyle(SkTypeface::kBold)); 130 canvas.drawText("Hamburgefons", 12, fTextSize/2, 2.4f*fTextSize, paint); 131 setTypeface(&paint, "serif", SkFontStyle::FromOldStyle(SkTypeface::kItalic)); 132 canvas.drawText("Hamburgefons", 12, fTextSize/2, 3.6f*fTextSize, paint); 133 setTypeface(&paint, "serif", SkFontStyle::FromOldStyle(SkTypeface::kBoldItalic)); 134 canvas.drawText("Hamburgefons", 12, fTextSize/2, 4.8f*fTextSize, paint); 135 } 136 private: 137 typedef FilterBitmapGM INHERITED; 138 }; 139 140 class FilterBitmapCheckerboardGM: public FilterBitmapGM { 141 public: 142 FilterBitmapCheckerboardGM(int size, int num_checks, bool convertToG8 = false) 143 : fSize(size), fNumChecks(num_checks), fConvertToG8(convertToG8) 144 { 145 fName.printf("filterbitmap_checkerboard_%d_%d%s", 146 fSize, fNumChecks, convertToG8 ? "_g8" : ""); 147 } 148 149 protected: 150 int fSize; 151 int fNumChecks; 152 153 SkScalar getScale() override { 154 return 192.f/fSize; 155 } 156 157 void makeBitmap() override { 158 fBM.allocN32Pixels(fSize, fSize); 159 for (int y = 0; y < fSize; y ++) { 160 for (int x = 0; x < fSize; x ++) { 161 SkPMColor* s = fBM.getAddr32(x, y); 162 int cx = (x * fNumChecks) / fSize; 163 int cy = (y * fNumChecks) / fSize; 164 if ((cx+cy)%2) { 165 *s = 0xFFFFFFFF; 166 } else { 167 *s = 0xFF000000; 168 } 169 } 170 } 171 if (fConvertToG8) { 172 SkBitmap tmp; 173 sk_tool_utils::copy_to_g8(&tmp, fBM); 174 fBM = tmp; 175 } 176 } 177 private: 178 const bool fConvertToG8; 179 typedef FilterBitmapGM INHERITED; 180 }; 181 182 class FilterBitmapImageGM: public FilterBitmapGM { 183 public: 184 FilterBitmapImageGM(const char filename[], bool convertToG8 = false) 185 : fFilename(filename), fConvertToG8(convertToG8) 186 { 187 fName.printf("filterbitmap_image_%s%s", filename, convertToG8 ? "_g8" : ""); 188 } 189 190 protected: 191 SkString fFilename; 192 int fSize; 193 194 SkScalar getScale() override { 195 return 192.f/fSize; 196 } 197 198 void makeBitmap() override { 199 if (!GetResourceAsBitmap(fFilename.c_str(), &fBM)) { 200 fBM.allocN32Pixels(1, 1); 201 fBM.eraseARGB(255, 255, 0 , 0); // red == bad 202 } 203 fSize = fBM.height(); 204 205 if (fConvertToG8) { 206 SkBitmap tmp; 207 sk_tool_utils::copy_to_g8(&tmp, fBM); 208 fBM = tmp; 209 } 210 } 211 private: 212 const bool fConvertToG8; 213 typedef FilterBitmapGM INHERITED; 214 }; 215 216 ////////////////////////////////////////////////////////////////////////////// 217 218 DEF_GM( return new FilterBitmapTextGM(3); ) 219 DEF_GM( return new FilterBitmapTextGM(7); ) 220 DEF_GM( return new FilterBitmapTextGM(10); ) 221 DEF_GM( return new FilterBitmapCheckerboardGM(4,4); ) 222 DEF_GM( return new FilterBitmapCheckerboardGM(32,32); ) 223 DEF_GM( return new FilterBitmapCheckerboardGM(32,32, true); ) 224 DEF_GM( return new FilterBitmapCheckerboardGM(32,8); ) 225 DEF_GM( return new FilterBitmapCheckerboardGM(32,2); ) 226 DEF_GM( return new FilterBitmapCheckerboardGM(192,192); ) 227 DEF_GM( return new FilterBitmapImageGM("mandrill_16.png"); ) 228 DEF_GM( return new FilterBitmapImageGM("mandrill_32.png"); ) 229 DEF_GM( return new FilterBitmapImageGM("mandrill_64.png"); ) 230 DEF_GM( return new FilterBitmapImageGM("mandrill_64.png", true); ) 231 DEF_GM( return new FilterBitmapImageGM("mandrill_128.png"); ) 232 DEF_GM( return new FilterBitmapImageGM("mandrill_256.png"); ) 233 DEF_GM( return new FilterBitmapImageGM("mandrill_512.png"); ) 234 DEF_GM( return new FilterBitmapImageGM("color_wheel.png"); ) 235
