epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2011 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 8 | #include "SampleCode.h" |
| 9 | #include "SkView.h" |
| 10 | #include "SkCanvas.h" |
| 11 | #include "Sk64.h" |
| 12 | #include "SkCornerPathEffect.h" |
| 13 | #include "SkGradientShader.h" |
| 14 | #include "SkGraphics.h" |
| 15 | #include "SkImageDecoder.h" |
| 16 | #include "SkKernel33MaskFilter.h" |
| 17 | #include "SkPath.h" |
| 18 | #include "SkRandom.h" |
| 19 | #include "SkRegion.h" |
| 20 | #include "SkShader.h" |
| 21 | #include "SkUtils.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 22 | #include "SkColorPriv.h" |
| 23 | #include "SkColorFilter.h" |
| 24 | #include "SkTime.h" |
| 25 | #include "SkTypeface.h" |
| 26 | #include "SkXfermode.h" |
| 27 | |
| 28 | #include "SkStream.h" |
| 29 | #include "SkXMLParser.h" |
| 30 | #include "SkColorPriv.h" |
| 31 | #include "SkImageDecoder.h" |
| 32 | |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 33 | static void setNamedTypeface(SkPaint* paint, const char name[]) { |
| 34 | SkTypeface* face = SkTypeface::CreateFromName(name, SkTypeface::kNormal); |
| 35 | paint->setTypeface(face); |
| 36 | SkSafeUnref(face); |
| 37 | } |
| 38 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 39 | #if 0 |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 40 | static int newscale(U8CPU a, U8CPU b, int shift) { |
| 41 | unsigned prod = a * b + (1 << (shift - 1)); |
| 42 | return (prod + (prod >> shift)) >> shift; |
| 43 | } |
| 44 | |
| 45 | static void test_srcover565(SkCanvas* canvas) { |
| 46 | const int width = 32; |
| 47 | SkBitmap bm1, bm2, bm3; |
| 48 | bm1.setConfig(SkBitmap::kRGB_565_Config, width, 256); bm1.allocPixels(NULL); |
| 49 | bm2.setConfig(SkBitmap::kRGB_565_Config, width, 256); bm2.allocPixels(NULL); |
| 50 | bm3.setConfig(SkBitmap::kRGB_565_Config, width, 256); bm3.allocPixels(NULL); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 51 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 52 | int rgb = 0x18; |
| 53 | int r = rgb >> 3; |
| 54 | int g = rgb >> 2; |
| 55 | uint16_t dst = SkPackRGB16(r, g, r); |
| 56 | for (int alpha = 0; alpha <= 255; alpha++) { |
| 57 | SkPMColor pm = SkPreMultiplyARGB(alpha, rgb, rgb, rgb); |
| 58 | uint16_t newdst = SkSrcOver32To16(pm, dst); |
| 59 | sk_memset16(bm1.getAddr16(0, alpha), newdst, bm1.width()); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 60 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 61 | int ia = 255 - alpha; |
| 62 | int iscale = SkAlpha255To256(ia); |
| 63 | int dr = (SkGetPackedR32(pm) + (r * iscale >> 5)) >> 3; |
| 64 | int dg = (SkGetPackedG32(pm) + (g * iscale >> 6)) >> 2; |
| 65 | |
| 66 | sk_memset16(bm2.getAddr16(0, alpha), SkPackRGB16(dr, dg, dr), bm2.width()); |
| 67 | |
| 68 | int dr2 = (SkMulDiv255Round(alpha, rgb) + newscale(r, ia, 5)) >> 3; |
| 69 | int dg2 = (SkMulDiv255Round(alpha, rgb) + newscale(g, ia, 6)) >> 2; |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 70 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 71 | sk_memset16(bm3.getAddr16(0, alpha), SkPackRGB16(dr2, dg2, dr2), bm3.width()); |
| 72 | |
| 73 | // if (mr != dr || mg != dg) |
| 74 | { |
| 75 | // SkDebugf("[%d] macro [%d %d] inline [%d %d] new [%d %d]\n", alpha, mr, mg, dr, dg, dr2, dg2); |
| 76 | } |
| 77 | } |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 78 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 79 | SkScalar dx = SkIntToScalar(width+4); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 80 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 81 | canvas->drawBitmap(bm1, 0, 0, NULL); canvas->translate(dx, 0); |
| 82 | canvas->drawBitmap(bm2, 0, 0, NULL); canvas->translate(dx, 0); |
| 83 | canvas->drawBitmap(bm3, 0, 0, NULL); canvas->translate(dx, 0); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 84 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 85 | SkRect rect = { 0, 0, SkIntToScalar(bm1.width()), SkIntToScalar(bm1.height()) }; |
| 86 | SkPaint p; |
| 87 | p.setARGB(0xFF, rgb, rgb, rgb); |
| 88 | canvas->drawRect(rect, p); |
| 89 | } |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 90 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 91 | |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 92 | static void make_bitmaps(int w, int h, SkBitmap* src, SkBitmap* dst) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 93 | src->setConfig(SkBitmap::kARGB_8888_Config, w, h); |
| 94 | src->allocPixels(); |
| 95 | src->eraseColor(0); |
| 96 | |
| 97 | SkCanvas c(*src); |
| 98 | SkPaint p; |
| 99 | SkRect r; |
| 100 | SkScalar ww = SkIntToScalar(w); |
| 101 | SkScalar hh = SkIntToScalar(h); |
| 102 | |
| 103 | p.setAntiAlias(true); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 104 | p.setColor(0xFFFFCC44); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 105 | r.set(0, 0, ww*3/4, hh*3/4); |
| 106 | c.drawOval(r, p); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 107 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 108 | dst->setConfig(SkBitmap::kARGB_8888_Config, w, h); |
| 109 | dst->allocPixels(); |
| 110 | dst->eraseColor(0); |
| 111 | c.setBitmapDevice(*dst); |
| 112 | |
| 113 | p.setColor(0xFF66AAFF); |
| 114 | r.set(ww/3, hh/3, ww*19/20, hh*19/20); |
| 115 | c.drawRect(r, p); |
| 116 | } |
| 117 | |
| 118 | static uint16_t gBG[] = { 0xFFFF, 0xCCCF, 0xCCCF, 0xFFFF }; |
| 119 | |
mike@reedtribe.org | 2eb5952 | 2011-04-22 01:59:09 +0000 | [diff] [blame] | 120 | class XfermodesView : public SampleView { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 121 | SkBitmap fBG; |
| 122 | SkBitmap fSrcB, fDstB; |
| 123 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 124 | void draw_mode(SkCanvas* canvas, SkXfermode* mode, int alpha, |
| 125 | SkScalar x, SkScalar y) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 126 | SkPaint p; |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 127 | |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 128 | canvas->drawBitmap(fSrcB, x, y, &p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 129 | p.setAlpha(alpha); |
| 130 | p.setXfermode(mode); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 131 | canvas->drawBitmap(fDstB, x, y, &p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 132 | } |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 133 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 134 | public: |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 135 | const static int W = 64; |
| 136 | const static int H = 64; |
reed@google.com | 7b18590 | 2012-03-12 21:13:48 +0000 | [diff] [blame] | 137 | bool fOnce; |
| 138 | |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame^] | 139 | XfermodesView() { |
reed@google.com | 7b18590 | 2012-03-12 21:13:48 +0000 | [diff] [blame] | 140 | fOnce = false; |
| 141 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame^] | 142 | |
reed@google.com | 7b18590 | 2012-03-12 21:13:48 +0000 | [diff] [blame] | 143 | void init() { |
| 144 | if (fOnce) { |
| 145 | return; |
| 146 | } |
| 147 | fOnce = true; |
| 148 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 149 | const int W = 64; |
| 150 | const int H = 64; |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 151 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 152 | fBG.setConfig(SkBitmap::kARGB_4444_Config, 2, 2, 4); |
| 153 | fBG.setPixels(gBG); |
| 154 | fBG.setIsOpaque(true); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 155 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 156 | make_bitmaps(W, H, &fSrcB, &fDstB); |
| 157 | } |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 158 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 159 | protected: |
| 160 | // overrides from SkEventSink |
| 161 | virtual bool onQuery(SkEvent* evt) { |
| 162 | if (SampleCode::TitleQ(*evt)) { |
| 163 | SampleCode::TitleR(evt, "Xfermodes"); |
| 164 | return true; |
| 165 | } |
| 166 | return this->INHERITED::onQuery(evt); |
| 167 | } |
| 168 | |
mike@reedtribe.org | 2eb5952 | 2011-04-22 01:59:09 +0000 | [diff] [blame] | 169 | virtual void onDrawContent(SkCanvas* canvas) { |
reed@google.com | 7b18590 | 2012-03-12 21:13:48 +0000 | [diff] [blame] | 170 | this->init(); |
| 171 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 172 | canvas->translate(SkIntToScalar(10), SkIntToScalar(20)); |
| 173 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 174 | const struct { |
reed@android.com | a0f5d15 | 2009-06-22 17:38:10 +0000 | [diff] [blame] | 175 | SkXfermode::Mode fMode; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 176 | const char* fLabel; |
| 177 | } gModes[] = { |
reed@android.com | a0f5d15 | 2009-06-22 17:38:10 +0000 | [diff] [blame] | 178 | { SkXfermode::kClear_Mode, "Clear" }, |
| 179 | { SkXfermode::kSrc_Mode, "Src" }, |
| 180 | { SkXfermode::kDst_Mode, "Dst" }, |
| 181 | { SkXfermode::kSrcOver_Mode, "SrcOver" }, |
| 182 | { SkXfermode::kDstOver_Mode, "DstOver" }, |
| 183 | { SkXfermode::kSrcIn_Mode, "SrcIn" }, |
| 184 | { SkXfermode::kDstIn_Mode, "DstIn" }, |
| 185 | { SkXfermode::kSrcOut_Mode, "SrcOut" }, |
| 186 | { SkXfermode::kDstOut_Mode, "DstOut" }, |
| 187 | { SkXfermode::kSrcATop_Mode, "SrcATop" }, |
| 188 | { SkXfermode::kDstATop_Mode, "DstATop" }, |
| 189 | { SkXfermode::kXor_Mode, "Xor" }, |
| 190 | |
| 191 | { SkXfermode::kPlus_Mode, "Plus" }, |
| 192 | { SkXfermode::kMultiply_Mode, "Multiply" }, |
| 193 | { SkXfermode::kScreen_Mode, "Screen" }, |
| 194 | { SkXfermode::kOverlay_Mode, "Overlay" }, |
| 195 | { SkXfermode::kDarken_Mode, "Darken" }, |
| 196 | { SkXfermode::kLighten_Mode, "Lighten" }, |
| 197 | { SkXfermode::kColorDodge_Mode, "ColorDodge" }, |
| 198 | { SkXfermode::kColorBurn_Mode, "ColorBurn" }, |
| 199 | { SkXfermode::kHardLight_Mode, "HardLight" }, |
| 200 | { SkXfermode::kSoftLight_Mode, "SoftLight" }, |
| 201 | { SkXfermode::kDifference_Mode, "Difference" }, |
| 202 | { SkXfermode::kExclusion_Mode, "Exclusion" }, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 203 | }; |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 204 | |
| 205 | const SkScalar w = SkIntToScalar(W); |
| 206 | const SkScalar h = SkIntToScalar(H); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 207 | SkShader* s = SkShader::CreateBitmapShader(fBG, |
| 208 | SkShader::kRepeat_TileMode, |
| 209 | SkShader::kRepeat_TileMode); |
| 210 | SkMatrix m; |
| 211 | m.setScale(SkIntToScalar(6), SkIntToScalar(6)); |
| 212 | s->setLocalMatrix(m); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 213 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 214 | SkPaint labelP; |
| 215 | labelP.setAntiAlias(true); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 216 | labelP.setLCDRenderText(true); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 217 | labelP.setTextAlign(SkPaint::kCenter_Align); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 218 | setNamedTypeface(&labelP, "Menlo Regular"); |
| 219 | // labelP.setTextSize(SkIntToScalar(11)); |
| 220 | |
reed@android.com | a0f5d15 | 2009-06-22 17:38:10 +0000 | [diff] [blame] | 221 | const int W = 5; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 222 | |
| 223 | SkScalar x0 = 0; |
| 224 | for (int twice = 0; twice < 2; twice++) { |
| 225 | SkScalar x = x0, y = 0; |
| 226 | for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) { |
reed@android.com | a0f5d15 | 2009-06-22 17:38:10 +0000 | [diff] [blame] | 227 | SkXfermode* mode = SkXfermode::Create(gModes[i].fMode); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 228 | SkAutoUnref aur(mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 229 | SkRect r; |
| 230 | r.set(x, y, x+w, y+h); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 231 | |
| 232 | SkPaint p; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 233 | p.setStyle(SkPaint::kFill_Style); |
| 234 | p.setShader(s); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 235 | canvas->drawRect(r, p); |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 236 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 237 | canvas->saveLayer(&r, NULL, SkCanvas::kARGB_ClipLayer_SaveFlag); |
| 238 | // canvas->save(); |
| 239 | draw_mode(canvas, mode, twice ? 0x88 : 0xFF, r.fLeft, r.fTop); |
| 240 | canvas->restore(); |
| 241 | |
| 242 | r.inset(-SK_ScalarHalf, -SK_ScalarHalf); |
| 243 | p.setStyle(SkPaint::kStroke_Style); |
| 244 | p.setShader(NULL); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 245 | canvas->drawRect(r, p); |
| 246 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 247 | #if 1 |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 248 | canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel), |
| 249 | x + w/2, y - labelP.getTextSize()/2, labelP); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 250 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 251 | x += w + SkIntToScalar(10); |
reed@android.com | a0f5d15 | 2009-06-22 17:38:10 +0000 | [diff] [blame] | 252 | if ((i % W) == W - 1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 253 | x = x0; |
| 254 | y += h + SkIntToScalar(30); |
| 255 | } |
| 256 | } |
reed@android.com | a0f5d15 | 2009-06-22 17:38:10 +0000 | [diff] [blame] | 257 | x0 += SkIntToScalar(400); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 258 | } |
| 259 | s->unref(); |
| 260 | } |
| 261 | |
| 262 | private: |
mike@reedtribe.org | 2eb5952 | 2011-04-22 01:59:09 +0000 | [diff] [blame] | 263 | typedef SampleView INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 264 | }; |
| 265 | |
| 266 | ////////////////////////////////////////////////////////////////////////////// |
| 267 | |
| 268 | static SkView* MyFactory() { return new XfermodesView; } |
| 269 | static SkViewRegister reg(MyFactory); |
| 270 | |