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1 /* | 1 /* |
2 * Copyright 2008 The Android Open Source Project | 2 * Copyright 2008 The Android Open Source Project |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkBitmapDevice.h" | 8 #include "SkBitmapDevice.h" |
9 #include "SkCanvas.h" | 9 #include "SkCanvas.h" |
10 #include "SkCanvasPriv.h" | 10 #include "SkCanvasPriv.h" |
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474 * draw onto the previous layer using the xfermode from the ori
ginal paint. | 474 * draw onto the previous layer using the xfermode from the ori
ginal paint. |
475 */ | 475 */ |
476 SkPaint tmp; | 476 SkPaint tmp; |
477 tmp.setImageFilter(fPaint->getImageFilter()); | 477 tmp.setImageFilter(fPaint->getImageFilter()); |
478 tmp.setXfermode(fPaint->getXfermode()); | 478 tmp.setXfermode(fPaint->getXfermode()); |
479 SkRect storage; | 479 SkRect storage; |
480 if (rawBounds) { | 480 if (rawBounds) { |
481 // Make rawBounds include all paint outsets except for those due
to image filters. | 481 // Make rawBounds include all paint outsets except for those due
to image filters. |
482 rawBounds = &apply_paint_to_bounds_sans_imagefilter(*fPaint, *ra
wBounds, &storage); | 482 rawBounds = &apply_paint_to_bounds_sans_imagefilter(*fPaint, *ra
wBounds, &storage); |
483 } | 483 } |
484 (void)canvas->internalSaveLayer(rawBounds, &tmp, SkCanvas::kARGB_Cli
pLayer_SaveFlag, | 484 (void)canvas->internalSaveLayer(SkCanvas::SaveLayerRec(rawBounds, &t
mp, 0), |
485 SkCanvas::kFullLayer_SaveLayerStrate
gy); | 485 SkCanvas::kFullLayer_SaveLayerStrate
gy); |
486 fTempLayerForImageFilter = true; | 486 fTempLayerForImageFilter = true; |
487 // we remove the imagefilter/xfermode inside doNext() | 487 // we remove the imagefilter/xfermode inside doNext() |
488 } | 488 } |
489 | 489 |
490 if (SkDrawLooper* looper = paint.getLooper()) { | 490 if (SkDrawLooper* looper = paint.getLooper()) { |
491 void* buffer = fLooperContextAllocator.reserveT<SkDrawLooper::Contex
t>( | 491 void* buffer = fLooperContextAllocator.reserveT<SkDrawLooper::Contex
t>( |
492 looper->contextSize()); | 492 looper->contextSize()); |
493 fLooperContext = looper->createContext(canvas, buffer); | 493 fLooperContext = looper->createContext(canvas, buffer); |
494 fIsSimple = false; | 494 fIsSimple = false; |
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1046 } | 1046 } |
1047 | 1047 |
1048 void SkCanvas::internalSave() { | 1048 void SkCanvas::internalSave() { |
1049 MCRec* newTop = (MCRec*)fMCStack.push_back(); | 1049 MCRec* newTop = (MCRec*)fMCStack.push_back(); |
1050 new (newTop) MCRec(*fMCRec); // balanced in restore() | 1050 new (newTop) MCRec(*fMCRec); // balanced in restore() |
1051 fMCRec = newTop; | 1051 fMCRec = newTop; |
1052 | 1052 |
1053 fClipStack->save(); | 1053 fClipStack->save(); |
1054 } | 1054 } |
1055 | 1055 |
1056 static bool bounds_affects_clip(SkCanvas::SaveFlags flags) { | 1056 bool SkCanvas::BoundsAffectsClip(SaveLayerFlags saveLayerFlags) { |
1057 #ifdef SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG | 1057 #ifdef SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG |
1058 return (flags & SkCanvas::kClipToLayer_SaveFlag) != 0; | 1058 return !(saveLayerFlags & SkCanvas::kDontClipToLayer_PrivateSaveLayerFlag); |
1059 #else | 1059 #else |
1060 return true; | 1060 return true; |
1061 #endif | 1061 #endif |
1062 } | 1062 } |
1063 | 1063 |
1064 bool SkCanvas::clipRectBounds(const SkRect* bounds, SaveFlags flags, | 1064 bool SkCanvas::clipRectBounds(const SkRect* bounds, SaveLayerFlags saveLayerFlag
s, |
1065 SkIRect* intersection, const SkImageFilter* imageF
ilter) { | 1065 SkIRect* intersection, const SkImageFilter* imageF
ilter) { |
1066 SkIRect clipBounds; | 1066 SkIRect clipBounds; |
1067 if (!this->getClipDeviceBounds(&clipBounds)) { | 1067 if (!this->getClipDeviceBounds(&clipBounds)) { |
1068 return false; | 1068 return false; |
1069 } | 1069 } |
1070 | 1070 |
1071 const SkMatrix& ctm = fMCRec->fMatrix; // this->getTotalMatrix() | 1071 const SkMatrix& ctm = fMCRec->fMatrix; // this->getTotalMatrix() |
1072 | 1072 |
1073 // This is a temporary hack, until individual filters can do their own | 1073 // This is a temporary hack, until individual filters can do their own |
1074 // bloating, when this will be removed. | 1074 // bloating, when this will be removed. |
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1091 #endif | 1091 #endif |
1092 } | 1092 } |
1093 SkIRect ir; | 1093 SkIRect ir; |
1094 if (bounds) { | 1094 if (bounds) { |
1095 SkRect r; | 1095 SkRect r; |
1096 | 1096 |
1097 ctm.mapRect(&r, *bounds); | 1097 ctm.mapRect(&r, *bounds); |
1098 r.roundOut(&ir); | 1098 r.roundOut(&ir); |
1099 // early exit if the layer's bounds are clipped out | 1099 // early exit if the layer's bounds are clipped out |
1100 if (!ir.intersect(clipBounds)) { | 1100 if (!ir.intersect(clipBounds)) { |
1101 if (bounds_affects_clip(flags)) { | 1101 if (BoundsAffectsClip(saveLayerFlags)) { |
1102 fCachedLocalClipBoundsDirty = true; | 1102 fCachedLocalClipBoundsDirty = true; |
1103 fMCRec->fRasterClip.setEmpty(); | 1103 fMCRec->fRasterClip.setEmpty(); |
1104 } | 1104 } |
1105 return false; | 1105 return false; |
1106 } | 1106 } |
1107 } else { // no user bounds, so just use the clip | 1107 } else { // no user bounds, so just use the clip |
1108 ir = clipBounds; | 1108 ir = clipBounds; |
1109 } | 1109 } |
1110 SkASSERT(!ir.isEmpty()); | 1110 SkASSERT(!ir.isEmpty()); |
1111 | 1111 |
1112 if (bounds_affects_clip(flags)) { | 1112 if (BoundsAffectsClip(saveLayerFlags)) { |
1113 // Simplify the current clips since they will be applied properly during
restore() | 1113 // Simplify the current clips since they will be applied properly during
restore() |
1114 fCachedLocalClipBoundsDirty = true; | 1114 fCachedLocalClipBoundsDirty = true; |
1115 fClipStack->clipDevRect(ir, SkRegion::kReplace_Op); | 1115 fClipStack->clipDevRect(ir, SkRegion::kReplace_Op); |
1116 fMCRec->fRasterClip.setRect(ir); | 1116 fMCRec->fRasterClip.setRect(ir); |
1117 } | 1117 } |
1118 | 1118 |
1119 if (intersection) { | 1119 if (intersection) { |
1120 *intersection = ir; | 1120 *intersection = ir; |
1121 } | 1121 } |
1122 return true; | 1122 return true; |
1123 } | 1123 } |
1124 | 1124 |
| 1125 uint32_t SkCanvas::SaveFlagsToSaveLayerFlags(SaveFlags flags) { |
| 1126 uint32_t layerFlags = 0; |
| 1127 |
| 1128 if (0 == (flags & kClipToLayer_SaveFlag)) { |
| 1129 layerFlags |= kDontClipToLayer_PrivateSaveLayerFlag; |
| 1130 } |
| 1131 if (0 == (flags & kHasAlphaLayer_SaveFlag)) { |
| 1132 layerFlags |= kIsOpaque_SaveLayerFlag; |
| 1133 } |
| 1134 return layerFlags; |
| 1135 } |
| 1136 |
| 1137 #ifdef SK_SUPPORT_LEGACY_SAVELAYERPARAMS |
| 1138 SkCanvas::SaveLayerStrategy SkCanvas::getSaveLayerStrategy(const SaveLayerRec& r
ec) { |
| 1139 uint32_t flags = 0; |
| 1140 |
| 1141 if (0 == (rec.fSaveLayerFlags & kDontClipToLayer_PrivateSaveLayerFlag)) { |
| 1142 flags |= kClipToLayer_SaveFlag; |
| 1143 } |
| 1144 if (0 == (rec.fSaveLayerFlags & kIsOpaque_SaveLayerFlag)) { |
| 1145 flags |= kHasAlphaLayer_SaveFlag; |
| 1146 } |
| 1147 return this->willSaveLayer(rec.fBounds, rec.fPaint, (SaveFlags)flags); |
| 1148 } |
| 1149 #endif |
| 1150 |
1125 int SkCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint) { | 1151 int SkCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint) { |
1126 if (gIgnoreSaveLayerBounds) { | 1152 return this->saveLayer(SaveLayerRec(bounds, paint, 0)); |
1127 bounds = nullptr; | |
1128 } | |
1129 SaveLayerStrategy strategy = this->willSaveLayer(bounds, paint, kARGB_ClipLa
yer_SaveFlag); | |
1130 fSaveCount += 1; | |
1131 this->internalSaveLayer(bounds, paint, kARGB_ClipLayer_SaveFlag, strategy); | |
1132 return this->getSaveCount() - 1; | |
1133 } | 1153 } |
1134 | 1154 |
1135 int SkCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint, SaveFlags fl
ags) { | 1155 int SkCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint, SaveFlags fl
ags) { |
1136 if (gIgnoreSaveLayerBounds) { | 1156 return this->saveLayer(SaveLayerRec(bounds, paint, SaveFlagsToSaveLayerFlags
(flags))); |
1137 bounds = nullptr; | |
1138 } | |
1139 SaveLayerStrategy strategy = this->willSaveLayer(bounds, paint, flags); | |
1140 fSaveCount += 1; | |
1141 this->internalSaveLayer(bounds, paint, flags, strategy); | |
1142 return this->getSaveCount() - 1; | |
1143 } | 1157 } |
1144 | 1158 |
1145 int SkCanvas::saveLayerPreserveLCDTextRequests(const SkRect* bounds, const SkPai
nt* paint) { | 1159 int SkCanvas::saveLayerPreserveLCDTextRequests(const SkRect* bounds, const SkPai
nt* paint) { |
1146 unsigned flags = kARGB_ClipLayer_SaveFlag | kPreserveLCDText_PrivateSaveFlag
; | 1160 return this->saveLayer(SaveLayerRec(bounds, paint, kPreserveLCDText_SaveLaye
rFlag)); |
1147 return this->saveLayer(bounds, paint, (SaveFlags)flags); | 1161 } |
| 1162 |
| 1163 int SkCanvas::saveLayer(const SaveLayerRec& origRec) { |
| 1164 SaveLayerRec rec(origRec); |
| 1165 if (gIgnoreSaveLayerBounds) { |
| 1166 rec.fBounds = nullptr; |
| 1167 } |
| 1168 SaveLayerStrategy strategy = this->getSaveLayerStrategy(rec); |
| 1169 fSaveCount += 1; |
| 1170 this->internalSaveLayer(rec, strategy); |
| 1171 return this->getSaveCount() - 1; |
1148 } | 1172 } |
1149 | 1173 |
1150 static void draw_filter_into_device(SkBaseDevice* src, SkImageFilter* filter, Sk
BaseDevice* dst) { | 1174 static void draw_filter_into_device(SkBaseDevice* src, SkImageFilter* filter, Sk
BaseDevice* dst) { |
1151 | 1175 |
1152 SkBitmap srcBM; | 1176 SkBitmap srcBM; |
1153 | 1177 |
1154 #if SK_SUPPORT_GPU | 1178 #if SK_SUPPORT_GPU |
1155 GrRenderTarget* srcRT = src->accessRenderTarget(); | 1179 GrRenderTarget* srcRT = src->accessRenderTarget(); |
1156 if (srcRT && !srcRT->asTexture() && dst->accessRenderTarget()) { | 1180 if (srcRT && !srcRT->asTexture() && dst->accessRenderTarget()) { |
1157 // When both the src & the dst are on the gpu but the src doesn't have a
texture, | 1181 // When both the src & the dst are on the gpu but the src doesn't have a
texture, |
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1170 srcBM = src->accessBitmap(false); | 1194 srcBM = src->accessBitmap(false); |
1171 } | 1195 } |
1172 | 1196 |
1173 SkCanvas c(dst); | 1197 SkCanvas c(dst); |
1174 | 1198 |
1175 SkPaint p; | 1199 SkPaint p; |
1176 p.setImageFilter(filter); | 1200 p.setImageFilter(filter); |
1177 c.drawBitmap(srcBM, 0, 0, &p); | 1201 c.drawBitmap(srcBM, 0, 0, &p); |
1178 } | 1202 } |
1179 | 1203 |
1180 void SkCanvas::internalSaveLayer(const SkRect* bounds, const SkPaint* paint, Sav
eFlags flags, | 1204 void SkCanvas::internalSaveLayer(const SaveLayerRec& rec, SaveLayerStrategy stra
tegy) { |
1181 SaveLayerStrategy strategy) { | 1205 const SkRect* bounds = rec.fBounds; |
| 1206 const SkPaint* paint = rec.fPaint; |
| 1207 SaveLayerFlags saveLayerFlags = rec.fSaveLayerFlags; |
| 1208 |
1182 #ifndef SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG | 1209 #ifndef SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG |
1183 flags |= kClipToLayer_SaveFlag; | 1210 saveLayerFlags &= ~kDontClipToLayer_PrivateSaveLayerFlag; |
1184 #endif | 1211 #endif |
1185 | 1212 |
1186 // do this before we create the layer. We don't call the public save() since | 1213 // do this before we create the layer. We don't call the public save() since |
1187 // that would invoke a possibly overridden virtual | 1214 // that would invoke a possibly overridden virtual |
1188 this->internalSave(); | 1215 this->internalSave(); |
1189 | 1216 |
1190 fDeviceCMDirty = true; | 1217 fDeviceCMDirty = true; |
1191 | 1218 |
1192 SkIRect ir; | 1219 SkIRect ir; |
1193 if (!this->clipRectBounds(bounds, flags, &ir, paint ? paint->getImageFilter(
) : nullptr)) { | 1220 if (!this->clipRectBounds(bounds, saveLayerFlags, &ir, paint ? paint->getIma
geFilter() : nullptr)) { |
1194 return; | 1221 return; |
1195 } | 1222 } |
1196 | 1223 |
1197 // FIXME: do willSaveLayer() overriders returning kNoLayer_SaveLayerStrategy
really care about | 1224 // FIXME: do willSaveLayer() overriders returning kNoLayer_SaveLayerStrategy
really care about |
1198 // the clipRectBounds() call above? | 1225 // the clipRectBounds() call above? |
1199 if (kNoLayer_SaveLayerStrategy == strategy) { | 1226 if (kNoLayer_SaveLayerStrategy == strategy) { |
1200 return; | 1227 return; |
1201 } | 1228 } |
1202 | 1229 |
1203 bool isOpaque = !SkToBool(flags & kHasAlphaLayer_SaveFlag); | 1230 bool isOpaque = SkToBool(saveLayerFlags & kIsOpaque_SaveLayerFlag); |
1204 SkPixelGeometry geo = fProps.pixelGeometry(); | 1231 SkPixelGeometry geo = fProps.pixelGeometry(); |
1205 if (paint) { | 1232 if (paint) { |
1206 // TODO: perhaps add a query to filters so we might preserve opaqueness.
.. | 1233 // TODO: perhaps add a query to filters so we might preserve opaqueness.
.. |
1207 if (paint->getImageFilter() || paint->getColorFilter()) { | 1234 if (paint->getImageFilter() || paint->getColorFilter()) { |
1208 isOpaque = false; | 1235 isOpaque = false; |
1209 geo = kUnknown_SkPixelGeometry; | 1236 geo = kUnknown_SkPixelGeometry; |
1210 } | 1237 } |
1211 } | 1238 } |
1212 SkImageInfo info = SkImageInfo::MakeN32(ir.width(), ir.height(), | 1239 SkImageInfo info = SkImageInfo::MakeN32(ir.width(), ir.height(), |
1213 isOpaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType); | 1240 isOpaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType); |
1214 | 1241 |
1215 SkBaseDevice* device = this->getTopDevice(); | 1242 SkBaseDevice* device = this->getTopDevice(); |
1216 if (nullptr == device) { | 1243 if (nullptr == device) { |
1217 SkDebugf("Unable to find device for layer."); | 1244 SkDebugf("Unable to find device for layer."); |
1218 return; | 1245 return; |
1219 } | 1246 } |
1220 | 1247 |
1221 bool forceSpriteOnRestore = false; | 1248 bool forceSpriteOnRestore = false; |
1222 { | 1249 { |
1223 const bool preserveLCDText = kOpaque_SkAlphaType == info.alphaType() || | 1250 const bool preserveLCDText = kOpaque_SkAlphaType == info.alphaType() || |
1224 SkToBool(flags & kPreserveLCDText_PrivateSa
veFlag); | 1251 (saveLayerFlags & kPreserveLCDText_SaveLaye
rFlag); |
1225 const SkBaseDevice::TileUsage usage = SkBaseDevice::kNever_TileUsage; | 1252 const SkBaseDevice::TileUsage usage = SkBaseDevice::kNever_TileUsage; |
1226 const SkBaseDevice::CreateInfo createInfo = SkBaseDevice::CreateInfo(inf
o, usage, geo, | 1253 const SkBaseDevice::CreateInfo createInfo = SkBaseDevice::CreateInfo(inf
o, usage, geo, |
1227 pres
erveLCDText, false); | 1254 pres
erveLCDText, false); |
1228 SkBaseDevice* newDev = device->onCreateDevice(createInfo, paint); | 1255 SkBaseDevice* newDev = device->onCreateDevice(createInfo, paint); |
1229 if (nullptr == newDev) { | 1256 if (nullptr == newDev) { |
1230 // If onCreateDevice didn't succeed, try raster (e.g. PDF couldn't h
andle the paint) | 1257 // If onCreateDevice didn't succeed, try raster (e.g. PDF couldn't h
andle the paint) |
1231 const SkSurfaceProps surfaceProps(fProps.flags(), createInfo.fPixelG
eometry); | 1258 const SkSurfaceProps surfaceProps(fProps.flags(), createInfo.fPixelG
eometry); |
1232 newDev = SkBitmapDevice::Create(createInfo.fInfo, surfaceProps); | 1259 newDev = SkBitmapDevice::Create(createInfo.fInfo, surfaceProps); |
1233 if (nullptr == newDev) { | 1260 if (nullptr == newDev) { |
1234 SkErrorInternals::SetError(kInternalError_SkError, | 1261 SkErrorInternals::SetError(kInternalError_SkError, |
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3014 } | 3041 } |
3015 | 3042 |
3016 if (matrix) { | 3043 if (matrix) { |
3017 canvas->concat(*matrix); | 3044 canvas->concat(*matrix); |
3018 } | 3045 } |
3019 } | 3046 } |
3020 | 3047 |
3021 SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() { | 3048 SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() { |
3022 fCanvas->restoreToCount(fSaveCount); | 3049 fCanvas->restoreToCount(fSaveCount); |
3023 } | 3050 } |
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