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| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
| 4 * | 4 * |
| 5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
| 6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
| 7 */ | 7 */ |
| 8 #include "SkCanvas.h" | 8 #include "SkCanvas.h" |
| 9 #include "SkColor.h" | 9 #include "SkColor.h" |
| 10 #include "SkReadBuffer.h" | 10 #include "SkReadBuffer.h" |
| 11 #include "SkWriteBuffer.h" | 11 #include "SkWriteBuffer.h" |
| 12 #include "SkLayerDrawLooper.h" | 12 #include "SkLayerDrawLooper.h" |
| 13 #include "SkString.h" | 13 #include "SkString.h" |
| 14 #include "SkStringUtils.h" | 14 #include "SkStringUtils.h" |
| 15 #include "SkUnPreMultiply.h" | 15 #include "SkUnPreMultiply.h" |
| 16 | 16 |
| 17 SkLayerDrawLooper::LayerInfo::LayerInfo() { | 17 SkLayerDrawLooper::LayerInfo::LayerInfo() { |
| 18 #ifdef SK_SUPPORT_LEGACY_LAYERDRAWLOOPER_PAINTFLAGS | |
| 19 fFlagsMask = 0; // ignore layerinfo's paint flags | |
| 20 #endif | |
| 21 fPaintBits = 0; // ignore our paint fields | 18 fPaintBits = 0; // ignore our paint fields |
| 22 fColorMode = SkXfermode::kDst_Mode; // ignore our color | 19 fColorMode = SkXfermode::kDst_Mode; // ignore our color |
| 23 fOffset.set(0, 0); | 20 fOffset.set(0, 0); |
| 24 fPostTranslate = false; | 21 fPostTranslate = false; |
| 25 } | 22 } |
| 26 | 23 |
| 27 SkLayerDrawLooper::SkLayerDrawLooper() | 24 SkLayerDrawLooper::SkLayerDrawLooper() |
| 28 : fRecs(NULL), | 25 : fRecs(NULL), |
| 29 fTopRec(NULL), | 26 fTopRec(NULL), |
| 30 fCount(0), | 27 fCount(0), |
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| 97 } | 94 } |
| 98 } | 95 } |
| 99 } | 96 } |
| 100 | 97 |
| 101 // Even with kEntirePaint_Bits, we always ensure that the master paint's | 98 // Even with kEntirePaint_Bits, we always ensure that the master paint's |
| 102 // text-encoding is respected, since that controls how we interpret the | 99 // text-encoding is respected, since that controls how we interpret the |
| 103 // text/length parameters of a draw[Pos]Text call. | 100 // text/length parameters of a draw[Pos]Text call. |
| 104 void SkLayerDrawLooper::ApplyInfo(SkPaint* dst, const SkPaint& src, | 101 void SkLayerDrawLooper::ApplyInfo(SkPaint* dst, const SkPaint& src, |
| 105 const LayerInfo& info) { | 102 const LayerInfo& info) { |
| 106 | 103 |
| 107 #ifdef SK_SUPPORT_LEGACY_LAYERDRAWLOOPER_PAINTFLAGS | |
| 108 uint32_t mask = info.fFlagsMask; | |
| 109 dst->setFlags((dst->getFlags() & ~mask) | (src.getFlags() & mask)); | |
| 110 #endif | |
| 111 dst->setColor(xferColor(src.getColor(), dst->getColor(), info.fColorMode)); | 104 dst->setColor(xferColor(src.getColor(), dst->getColor(), info.fColorMode)); |
| 112 | 105 |
| 113 BitFlags bits = info.fPaintBits; | 106 BitFlags bits = info.fPaintBits; |
| 114 SkPaint::TextEncoding encoding = dst->getTextEncoding(); | 107 SkPaint::TextEncoding encoding = dst->getTextEncoding(); |
| 115 | 108 |
| 116 if (0 == bits) { | 109 if (0 == bits) { |
| 117 return; | 110 return; |
| 118 } | 111 } |
| 119 if (kEntirePaint_Bits == bits) { | 112 if (kEntirePaint_Bits == bits) { |
| 120 // we've already computed these, so save it from the assignment | 113 // we've already computed these, so save it from the assignment |
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| 208 count += 1; | 201 count += 1; |
| 209 } | 202 } |
| 210 SkASSERT(count == fCount); | 203 SkASSERT(count == fCount); |
| 211 } | 204 } |
| 212 #endif | 205 #endif |
| 213 | 206 |
| 214 buffer.writeInt(fCount); | 207 buffer.writeInt(fCount); |
| 215 | 208 |
| 216 Rec* rec = fRecs; | 209 Rec* rec = fRecs; |
| 217 for (int i = 0; i < fCount; i++) { | 210 for (int i = 0; i < fCount; i++) { |
| 218 #ifdef SK_SUPPORT_LEGACY_LAYERDRAWLOOPER_PAINTFLAGS | 211 // Legacy "flagsmask" field -- now ignored, remove when we bump version |
| 219 buffer.writeInt(rec->fInfo.fFlagsMask); | 212 buffer.writeInt(0); |
| 220 #else | 213 |
| 221 buffer.writeInt(0); // remove eventually, when we can bump the version | |
| 222 #endif | |
| 223 buffer.writeInt(rec->fInfo.fPaintBits); | 214 buffer.writeInt(rec->fInfo.fPaintBits); |
| 224 buffer.writeInt(rec->fInfo.fColorMode); | 215 buffer.writeInt(rec->fInfo.fColorMode); |
| 225 buffer.writePoint(rec->fInfo.fOffset); | 216 buffer.writePoint(rec->fInfo.fOffset); |
| 226 buffer.writeBool(rec->fInfo.fPostTranslate); | 217 buffer.writeBool(rec->fInfo.fPostTranslate); |
| 227 buffer.writePaint(rec->fPaint); | 218 buffer.writePaint(rec->fPaint); |
| 228 rec = rec->fNext; | 219 rec = rec->fNext; |
| 229 } | 220 } |
| 230 } | 221 } |
| 231 | 222 |
| 232 SkFlattenable* SkLayerDrawLooper::CreateProc(SkReadBuffer& buffer) { | 223 SkFlattenable* SkLayerDrawLooper::CreateProc(SkReadBuffer& buffer) { |
| 233 int count = buffer.readInt(); | 224 int count = buffer.readInt(); |
| 234 | 225 |
| 235 Builder builder; | 226 Builder builder; |
| 236 for (int i = 0; i < count; i++) { | 227 for (int i = 0; i < count; i++) { |
| 237 LayerInfo info; | 228 LayerInfo info; |
| 238 #ifdef SK_SUPPORT_LEGACY_LAYERDRAWLOOPER_PAINTFLAGS | 229 // Legacy "flagsmask" field -- now ignored, remove when we bump version |
| 239 info.fFlagsMask = buffer.readInt(); | |
| 240 #else | |
| 241 (void)buffer.readInt(); | 230 (void)buffer.readInt(); |
| 242 #endif | 231 |
| 243 info.fPaintBits = buffer.readInt(); | 232 info.fPaintBits = buffer.readInt(); |
| 244 info.fColorMode = (SkXfermode::Mode)buffer.readInt(); | 233 info.fColorMode = (SkXfermode::Mode)buffer.readInt(); |
| 245 buffer.readPoint(&info.fOffset); | 234 buffer.readPoint(&info.fOffset); |
| 246 info.fPostTranslate = buffer.readBool(); | 235 info.fPostTranslate = buffer.readBool(); |
| 247 buffer.readPaint(builder.addLayerOnTop(info)); | 236 buffer.readPaint(builder.addLayerOnTop(info)); |
| 248 } | 237 } |
| 249 SkLayerDrawLooper* looper = builder.detachLooper(); | 238 SkLayerDrawLooper* looper = builder.detachLooper(); |
| 250 SkASSERT(count == looper->fCount); | 239 SkASSERT(count == looper->fCount); |
| 251 | 240 |
| 252 #ifdef SK_DEBUG | 241 #ifdef SK_DEBUG |
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| 263 | 252 |
| 264 return looper; | 253 return looper; |
| 265 } | 254 } |
| 266 | 255 |
| 267 #ifdef SK_DEVELOPER | 256 #ifdef SK_DEVELOPER |
| 268 void SkLayerDrawLooper::toString(SkString* str) const { | 257 void SkLayerDrawLooper::toString(SkString* str) const { |
| 269 str->appendf("SkLayerDrawLooper (%d): ", fCount); | 258 str->appendf("SkLayerDrawLooper (%d): ", fCount); |
| 270 | 259 |
| 271 Rec* rec = fRecs; | 260 Rec* rec = fRecs; |
| 272 for (int i = 0; i < fCount; i++) { | 261 for (int i = 0; i < fCount; i++) { |
| 273 str->appendf("%d: ", i); | 262 str->appendf("%d: paintBits: (", i); |
| 274 | |
| 275 #ifdef SK_SUPPORT_LEGACY_LAYERDRAWLOOPER_PAINTFLAGS | |
| 276 str->append("flagsMask: ("); | |
| 277 if (0 == rec->fInfo.fFlagsMask) { | |
| 278 str->append("None"); | |
| 279 } else { | |
| 280 bool needSeparator = false; | |
| 281 SkAddFlagToString(str, SkToBool(SkPaint::kAntiAlias_Flag & rec->fInf
o.fFlagsMask), | |
| 282 "AntiAlias", &needSeparator); | |
| 283 // SkAddFlagToString(str, SkToBool(SkPaint::kFilterBitmap_Flag & rec-
>fInfo.fFlagsMask), "FilterBitmap", &needSeparator); | |
| 284 SkAddFlagToString(str, SkToBool(SkPaint::kDither_Flag & rec->fInfo.f
FlagsMask), | |
| 285 "Dither", &needSeparator); | |
| 286 SkAddFlagToString(str, SkToBool(SkPaint::kUnderlineText_Flag & rec->
fInfo.fFlagsMask), | |
| 287 "UnderlineText", &needSeparator); | |
| 288 SkAddFlagToString(str, SkToBool(SkPaint::kStrikeThruText_Flag & rec-
>fInfo.fFlagsMask), | |
| 289 "StrikeThruText", &needSeparator); | |
| 290 SkAddFlagToString(str, SkToBool(SkPaint::kFakeBoldText_Flag & rec->f
Info.fFlagsMask), | |
| 291 "FakeBoldText", &needSeparator); | |
| 292 SkAddFlagToString(str, SkToBool(SkPaint::kLinearText_Flag & rec->fIn
fo.fFlagsMask), | |
| 293 "LinearText", &needSeparator); | |
| 294 SkAddFlagToString(str, SkToBool(SkPaint::kSubpixelText_Flag & rec->f
Info.fFlagsMask), | |
| 295 "SubpixelText", &needSeparator); | |
| 296 SkAddFlagToString(str, SkToBool(SkPaint::kDevKernText_Flag & rec->fI
nfo.fFlagsMask), | |
| 297 "DevKernText", &needSeparator); | |
| 298 SkAddFlagToString(str, SkToBool(SkPaint::kLCDRenderText_Flag & rec->
fInfo.fFlagsMask), | |
| 299 "LCDRenderText", &needSeparator); | |
| 300 SkAddFlagToString(str, SkToBool(SkPaint::kEmbeddedBitmapText_Flag &
rec->fInfo.fFlagsMask), | |
| 301 "EmbeddedBitmapText", &needSeparator); | |
| 302 SkAddFlagToString(str, SkToBool(SkPaint::kAutoHinting_Flag & rec->fI
nfo.fFlagsMask), | |
| 303 "Autohinted", &needSeparator); | |
| 304 SkAddFlagToString(str, SkToBool(SkPaint::kVerticalText_Flag & rec->f
Info.fFlagsMask), | |
| 305 "VerticalText", &needSeparator); | |
| 306 SkAddFlagToString(str, SkToBool(SkPaint::kGenA8FromLCD_Flag & rec->f
Info.fFlagsMask), | |
| 307 "GenA8FromLCD", &needSeparator); | |
| 308 } | |
| 309 #endif | |
| 310 str->append(") "); | |
| 311 | |
| 312 str->append("paintBits: ("); | |
| 313 if (0 == rec->fInfo.fPaintBits) { | 263 if (0 == rec->fInfo.fPaintBits) { |
| 314 str->append("None"); | 264 str->append("None"); |
| 315 } else if (kEntirePaint_Bits == rec->fInfo.fPaintBits) { | 265 } else if (kEntirePaint_Bits == rec->fInfo.fPaintBits) { |
| 316 str->append("EntirePaint"); | 266 str->append("EntirePaint"); |
| 317 } else { | 267 } else { |
| 318 bool needSeparator = false; | 268 bool needSeparator = false; |
| 319 SkAddFlagToString(str, SkToBool(kStyle_Bit & rec->fInfo.fPaintBits),
"Style", | 269 SkAddFlagToString(str, SkToBool(kStyle_Bit & rec->fInfo.fPaintBits),
"Style", |
| 320 &needSeparator); | 270 &needSeparator); |
| 321 SkAddFlagToString(str, SkToBool(kTextSkewX_Bit & rec->fInfo.fPaintBi
ts), "TextSkewX", | 271 SkAddFlagToString(str, SkToBool(kTextSkewX_Bit & rec->fInfo.fPaintBi
ts), "TextSkewX", |
| 322 &needSeparator); | 272 &needSeparator); |
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| 418 SkLayerDrawLooper* looper = SkNEW(SkLayerDrawLooper); | 368 SkLayerDrawLooper* looper = SkNEW(SkLayerDrawLooper); |
| 419 looper->fCount = fCount; | 369 looper->fCount = fCount; |
| 420 looper->fRecs = fRecs; | 370 looper->fRecs = fRecs; |
| 421 | 371 |
| 422 fCount = 0; | 372 fCount = 0; |
| 423 fRecs = NULL; | 373 fRecs = NULL; |
| 424 fTopRec = NULL; | 374 fTopRec = NULL; |
| 425 | 375 |
| 426 return looper; | 376 return looper; |
| 427 } | 377 } |
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