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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2007 The Android Open Source Project | 3 * Copyright 2007 The Android Open Source Project |
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 | 8 |
9 | 9 |
10 #include "SkPictureFlat.h" | 10 #include "SkPictureFlat.h" |
11 #include "SkPictureData.h" | 11 #include "SkPictureData.h" |
12 #include "SkPicturePlayback.h" | 12 #include "SkPicturePlayback.h" |
13 #include "SkPictureRecord.h" | 13 #include "SkPictureRecord.h" |
14 #include "SkPictureRecorder.h" | 14 #include "SkPictureRecorder.h" |
15 #include "SkPictureStateTree.h" | 15 #include "SkPictureStateTree.h" |
16 | 16 |
17 #include "SkBitmapDevice.h" | 17 #include "SkBitmapDevice.h" |
18 #include "SkCanvas.h" | 18 #include "SkCanvas.h" |
19 #include "SkChunkAlloc.h" | 19 #include "SkChunkAlloc.h" |
20 #include "SkDrawPictureCallback.h" | 20 #include "SkDrawPictureCallback.h" |
21 #include "SkPaintPriv.h" | 21 #include "SkPaintPriv.h" |
22 #include "SkPathEffect.h" | |
23 #include "SkPicture.h" | 22 #include "SkPicture.h" |
| 23 #include "SkRecordAnalysis.h" |
24 #include "SkRegion.h" | 24 #include "SkRegion.h" |
25 #include "SkShader.h" | |
26 #include "SkStream.h" | 25 #include "SkStream.h" |
27 #include "SkTDArray.h" | 26 #include "SkTDArray.h" |
28 #include "SkTLogic.h" | |
29 #include "SkTSearch.h" | 27 #include "SkTSearch.h" |
30 #include "SkTime.h" | 28 #include "SkTime.h" |
31 | 29 |
32 #include "SkReader32.h" | 30 #include "SkReader32.h" |
33 #include "SkWriter32.h" | 31 #include "SkWriter32.h" |
34 #include "SkRTree.h" | 32 #include "SkRTree.h" |
35 #include "SkBBoxHierarchyRecord.h" | 33 #include "SkBBoxHierarchyRecord.h" |
36 | 34 |
37 #if SK_SUPPORT_GPU | 35 #if SK_SUPPORT_GPU |
38 #include "GrContext.h" | 36 #include "GrContext.h" |
39 #endif | 37 #endif |
40 | 38 |
41 #include "SkRecord.h" | 39 #include "SkRecord.h" |
42 #include "SkRecordDraw.h" | 40 #include "SkRecordDraw.h" |
43 #include "SkRecorder.h" | 41 #include "SkRecorder.h" |
44 | 42 |
45 template <typename T> int SafeCount(const T* obj) { | 43 template <typename T> int SafeCount(const T* obj) { |
46 return obj ? obj->count() : 0; | 44 return obj ? obj->count() : 0; |
47 } | 45 } |
48 | 46 |
49 /////////////////////////////////////////////////////////////////////////////// | 47 /////////////////////////////////////////////////////////////////////////////// |
50 | 48 |
51 namespace { | |
52 | |
53 // Some commands have a paint, some have an optional paint. Either way, get bac
k a pointer. | |
54 static const SkPaint* AsPtr(const SkPaint& p) { return &p; } | |
55 static const SkPaint* AsPtr(const SkRecords::Optional<SkPaint>& p) { return p; } | |
56 | |
57 /** SkRecords visitor to determine whether an instance may require an | |
58 "external" bitmap to rasterize. May return false positives. | |
59 Does not return true for bitmap text. | |
60 | |
61 Expected use is to determine whether images need to be decoded before | |
62 rasterizing a particular SkRecord. | |
63 */ | |
64 struct BitmapTester { | |
65 // Helpers. These create HasMember_bitmap and HasMember_paint. | |
66 SK_CREATE_MEMBER_DETECTOR(bitmap); | |
67 SK_CREATE_MEMBER_DETECTOR(paint); | |
68 | |
69 | |
70 // Main entry for visitor: | |
71 // If the command has a bitmap directly, return true. | |
72 // If the command has a paint and the paint has a bitmap, return true. | |
73 // Otherwise, return false. | |
74 template <typename T> | |
75 bool operator()(const T& r) { return CheckBitmap(r); } | |
76 | |
77 | |
78 // If the command has a bitmap, of course we're going to play back bitmaps. | |
79 template <typename T> | |
80 static SK_WHEN(HasMember_bitmap<T>, bool) CheckBitmap(const T&) { return tru
e; } | |
81 | |
82 // If not, look for one in its paint (if it has a paint). | |
83 template <typename T> | |
84 static SK_WHEN(!HasMember_bitmap<T>, bool) CheckBitmap(const T& r) { return
CheckPaint(r); } | |
85 | |
86 // If we have a paint, dig down into the effects looking for a bitmap. | |
87 template <typename T> | |
88 static SK_WHEN(HasMember_paint<T>, bool) CheckPaint(const T& r) { | |
89 const SkPaint* paint = AsPtr(r.paint); | |
90 if (paint) { | |
91 const SkShader* shader = paint->getShader(); | |
92 if (shader && | |
93 shader->asABitmap(NULL, NULL, NULL) == SkShader::kDefault_Bitmap
Type) { | |
94 return true; | |
95 } | |
96 } | |
97 return false; | |
98 } | |
99 | |
100 // If we don't have a paint, that non-paint has no bitmap. | |
101 template <typename T> | |
102 static SK_WHEN(!HasMember_paint<T>, bool) CheckPaint(const T&) { return fals
e; } | |
103 }; | |
104 | |
105 bool WillPlaybackBitmaps(const SkRecord& record) { | |
106 BitmapTester tester; | |
107 for (unsigned i = 0; i < record.count(); i++) { | |
108 if (record.visit<bool>(i, tester)) { | |
109 return true; | |
110 } | |
111 } | |
112 return false; | |
113 } | |
114 | |
115 /** SkRecords visitor to determine heuristically whether or not a SkPicture | |
116 will be performant when rasterized on the GPU. | |
117 */ | |
118 struct PathCounter { | |
119 SK_CREATE_MEMBER_DETECTOR(paint); | |
120 | |
121 PathCounter() | |
122 : numPaintWithPathEffectUses (0) | |
123 , numFastPathDashEffects (0) | |
124 , numAAConcavePaths (0) | |
125 , numAAHairlineConcavePaths (0) { | |
126 } | |
127 | |
128 void checkPaint(const SkPaint* paint) { | |
129 if (paint && paint->getPathEffect()) { | |
130 numPaintWithPathEffectUses++; | |
131 } | |
132 } | |
133 | |
134 void operator()(const SkRecords::DrawPoints& op) { | |
135 this->checkPaint(&op.paint); | |
136 const SkPathEffect* effect = op.paint.getPathEffect(); | |
137 if (effect) { | |
138 SkPathEffect::DashInfo info; | |
139 SkPathEffect::DashType dashType = effect->asADash(&info); | |
140 if (2 == op.count && SkPaint::kRound_Cap != op.paint.getStrokeCap()
&& | |
141 SkPathEffect::kDash_DashType == dashType && 2 == info.fCount) { | |
142 numFastPathDashEffects++; | |
143 } | |
144 } | |
145 } | |
146 | |
147 void operator()(const SkRecords::DrawPath& op) { | |
148 this->checkPaint(&op.paint); | |
149 if (op.paint.isAntiAlias() && !op.path.isConvex()) { | |
150 numAAConcavePaths++; | |
151 | |
152 if (SkPaint::kStroke_Style == op.paint.getStyle() && | |
153 0 == op.paint.getStrokeWidth()) { | |
154 numAAHairlineConcavePaths++; | |
155 } | |
156 } | |
157 } | |
158 | |
159 template <typename T> | |
160 SK_WHEN(HasMember_paint<T>, void) operator()(const T& op) { | |
161 this->checkPaint(AsPtr(op.paint)); | |
162 } | |
163 | |
164 template <typename T> | |
165 SK_WHEN(!HasMember_paint<T>, void) operator()(const T& op) { /* do nothing *
/ } | |
166 | |
167 | |
168 int numPaintWithPathEffectUses; | |
169 int numFastPathDashEffects; | |
170 int numAAConcavePaths; | |
171 int numAAHairlineConcavePaths; | |
172 }; | |
173 | |
174 bool SuitableForGpuRasterization(const SkRecord& record, | |
175 const char** reason = NULL, | |
176 int sampleCount = 0) { | |
177 PathCounter counter; | |
178 for (unsigned i = 0; i < record.count(); i++) { | |
179 record.visit<void>(i, counter); | |
180 } | |
181 | |
182 // TODO: the heuristic used here needs to be refined | |
183 static const int kNumPaintWithPathEffectsUsesTol = 1; | |
184 static const int kNumAAConcavePathsTol = 5; | |
185 | |
186 int numNonDashedPathEffects = counter.numPaintWithPathEffectUses - | |
187 counter.numFastPathDashEffects; | |
188 bool suitableForDash = (0 == counter.numPaintWithPathEffectUses) || | |
189 (numNonDashedPathEffects < kNumPaintWithPathEffectsUs
esTol | |
190 && 0 == sampleCount); | |
191 | |
192 bool ret = suitableForDash && | |
193 (counter.numAAConcavePaths - counter.numAAHairlineConcavePaths) | |
194 < kNumAAConcavePathsTol; | |
195 | |
196 if (!ret && NULL != reason) { | |
197 if (!suitableForDash) { | |
198 if (0 != sampleCount) { | |
199 *reason = "Can't use multisample on dash effect."; | |
200 } else { | |
201 *reason = "Too many non dashed path effects."; | |
202 } | |
203 } else if ((counter.numAAConcavePaths - counter.numAAHairlineConcavePath
s) | |
204 >= kNumAAConcavePathsTol) | |
205 *reason = "Too many anti-aliased concave paths."; | |
206 else | |
207 *reason = "Unknown reason for GPU unsuitability."; | |
208 } | |
209 return ret; | |
210 } | |
211 | |
212 } // namespace | |
213 | |
214 SkPicture::Analysis::Analysis(const SkRecord& record) | |
215 : fWillPlaybackBitmaps (WillPlaybackBitmaps(record)) | |
216 , fSuitableForGpuRasterization (SuitableForGpuRasterization(record)) { } | |
217 | |
218 /////////////////////////////////////////////////////////////////////////////// | |
219 | |
220 #ifdef SK_SUPPORT_LEGACY_DEFAULT_PICTURE_CTOR | 49 #ifdef SK_SUPPORT_LEGACY_DEFAULT_PICTURE_CTOR |
221 // fRecord OK | 50 // fRecord OK |
222 SkPicture::SkPicture() | 51 SkPicture::SkPicture() |
223 : fWidth(0) | 52 : fWidth(0) |
224 , fHeight(0) { | 53 , fHeight(0) |
| 54 , fRecordWillPlayBackBitmaps(false) { |
225 this->needsNewGenID(); | 55 this->needsNewGenID(); |
226 } | 56 } |
227 #endif | 57 #endif |
228 | 58 |
229 // fRecord OK | 59 // fRecord OK |
230 SkPicture::SkPicture(int width, int height, | 60 SkPicture::SkPicture(int width, int height, |
231 const SkPictureRecord& record, | 61 const SkPictureRecord& record, |
232 bool deepCopyOps) | 62 bool deepCopyOps) |
233 : fWidth(width) | 63 : fWidth(width) |
234 , fHeight(height) { | 64 , fHeight(height) |
| 65 , fRecordWillPlayBackBitmaps(false) { |
235 this->needsNewGenID(); | 66 this->needsNewGenID(); |
236 | 67 |
237 SkPictInfo info; | 68 SkPictInfo info; |
238 this->createHeader(&info); | 69 this->createHeader(&info); |
239 fData.reset(SkNEW_ARGS(SkPictureData, (record, info, deepCopyOps))); | 70 fData.reset(SkNEW_ARGS(SkPictureData, (record, info, deepCopyOps))); |
240 } | 71 } |
241 | 72 |
242 // Create an SkPictureData-backed SkPicture from an SkRecord. | 73 // Create an SkPictureData-backed SkPicture from an SkRecord. |
243 // This for compatibility with serialization code only. This is not cheap. | 74 // This for compatibility with serialization code only. This is not cheap. |
244 static SkPicture* backport(const SkRecord& src, int width, int height) { | 75 static SkPicture* backport(const SkRecord& src, int width, int height) { |
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299 } | 130 } |
300 SkASSERT(SafeCount(fData->fBitmapHeap.get()) == heapSize); | 131 SkASSERT(SafeCount(fData->fBitmapHeap.get()) == heapSize); |
301 | 132 |
302 // needed to create typeface playback | 133 // needed to create typeface playback |
303 copyInfo.controller.setupPlaybacks(); | 134 copyInfo.controller.setupPlaybacks(); |
304 | 135 |
305 newData.reset(SkNEW_ARGS(SkPictureData, (*fData, ©Info))); | 136 newData.reset(SkNEW_ARGS(SkPictureData, (*fData, ©Info))); |
306 } | 137 } |
307 | 138 |
308 SkPicture* clone = SkNEW_ARGS(SkPicture, (newData.detach(), fWidth, fHeight)
); | 139 SkPicture* clone = SkNEW_ARGS(SkPicture, (newData.detach(), fWidth, fHeight)
); |
| 140 clone->fRecordWillPlayBackBitmaps = fRecordWillPlayBackBitmaps; |
309 clone->fUniqueID = this->uniqueID(); // need to call method to ensure != 0 | 141 clone->fUniqueID = this->uniqueID(); // need to call method to ensure != 0 |
310 | 142 |
311 return clone; | 143 return clone; |
312 #endif | 144 #endif |
313 } | 145 } |
314 #endif//SK_SUPPORT_LEGACY_PICTURE_CLONE | 146 #endif//SK_SUPPORT_LEGACY_PICTURE_CLONE |
315 | 147 |
316 // fRecord OK | 148 // fRecord OK |
317 void SkPicture::EXPERIMENTAL_addAccelData(const SkPicture::AccelData* data) cons
t { | 149 void SkPicture::EXPERIMENTAL_addAccelData(const SkPicture::AccelData* data) cons
t { |
318 fAccelData.reset(SkRef(data)); | 150 fAccelData.reset(SkRef(data)); |
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431 if (pInfo != NULL) { | 263 if (pInfo != NULL) { |
432 *pInfo = info; | 264 *pInfo = info; |
433 } | 265 } |
434 return true; | 266 return true; |
435 } | 267 } |
436 | 268 |
437 // fRecord OK | 269 // fRecord OK |
438 SkPicture::SkPicture(SkPictureData* data, int width, int height) | 270 SkPicture::SkPicture(SkPictureData* data, int width, int height) |
439 : fData(data) | 271 : fData(data) |
440 , fWidth(width) | 272 , fWidth(width) |
441 , fHeight(height) { | 273 , fHeight(height) |
| 274 , fRecordWillPlayBackBitmaps(false) { |
442 this->needsNewGenID(); | 275 this->needsNewGenID(); |
443 } | 276 } |
444 | 277 |
445 // fRecord OK | 278 // fRecord OK |
446 SkPicture* SkPicture::CreateFromStream(SkStream* stream, InstallPixelRefProc pro
c) { | 279 SkPicture* SkPicture::CreateFromStream(SkStream* stream, InstallPixelRefProc pro
c) { |
447 SkPictInfo info; | 280 SkPictInfo info; |
448 | 281 |
449 if (!InternalOnly_StreamIsSKP(stream, &info)) { | 282 if (!InternalOnly_StreamIsSKP(stream, &info)) { |
450 return NULL; | 283 return NULL; |
451 } | 284 } |
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546 | 379 |
547 if (NULL != data) { | 380 if (NULL != data) { |
548 buffer.writeBool(true); | 381 buffer.writeBool(true); |
549 data->flatten(buffer); | 382 data->flatten(buffer); |
550 } else { | 383 } else { |
551 buffer.writeBool(false); | 384 buffer.writeBool(false); |
552 } | 385 } |
553 } | 386 } |
554 | 387 |
555 #if SK_SUPPORT_GPU | 388 #if SK_SUPPORT_GPU |
556 // fRecord OK | 389 // fRecord TODO |
557 bool SkPicture::suitableForGpuRasterization(GrContext* context, const char **rea
son) const { | 390 bool SkPicture::suitableForGpuRasterization(GrContext* context, const char **rea
son) const { |
558 if (fRecord.get()) { | |
559 return fAnalysis.fSuitableForGpuRasterization; | |
560 } | |
561 if (NULL == fData.get()) { | 391 if (NULL == fData.get()) { |
562 if (NULL != reason) { | 392 if (NULL != reason) { |
563 *reason = "Missing internal data."; | 393 *reason = "Missing internal data."; |
564 } | 394 } |
565 return false; | 395 return false; |
566 } | 396 } |
567 | 397 |
568 return fData->suitableForGpuRasterization(context, reason); | 398 return fData->suitableForGpuRasterization(context, reason); |
569 } | 399 } |
570 #endif | 400 #endif |
571 | 401 |
572 // fRecord TODO | 402 // fRecord TODO |
573 bool SkPicture::hasText() const { | 403 bool SkPicture::hasText() const { |
574 return fData.get() && fData->hasText(); | 404 return fData.get() && fData->hasText(); |
575 } | 405 } |
576 | 406 |
577 // fRecord OK | 407 // fRecord OK |
578 bool SkPicture::willPlayBackBitmaps() const { | 408 bool SkPicture::willPlayBackBitmaps() const { |
579 if (fRecord.get()) { | 409 if (fRecord.get()) { |
580 return fAnalysis.fWillPlaybackBitmaps; | 410 return fRecordWillPlayBackBitmaps; |
581 } | 411 } |
582 if (!fData.get()) { | 412 if (!fData.get()) { |
583 return false; | 413 return false; |
584 } | 414 } |
585 return fData->containsBitmaps(); | 415 return fData->containsBitmaps(); |
586 } | 416 } |
587 | 417 |
588 // fRecord OK | 418 // fRecord OK |
589 static int32_t next_picture_generation_id() { | 419 static int32_t next_picture_generation_id() { |
590 static int32_t gPictureGenerationID = 0; | 420 static int32_t gPictureGenerationID = 0; |
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604 } | 434 } |
605 return fUniqueID; | 435 return fUniqueID; |
606 } | 436 } |
607 | 437 |
608 // fRecord OK | 438 // fRecord OK |
609 SkPicture::SkPicture(int width, int height, SkRecord* record, SkBBoxHierarchy* b
bh) | 439 SkPicture::SkPicture(int width, int height, SkRecord* record, SkBBoxHierarchy* b
bh) |
610 : fWidth(width) | 440 : fWidth(width) |
611 , fHeight(height) | 441 , fHeight(height) |
612 , fRecord(record) | 442 , fRecord(record) |
613 , fBBH(SkSafeRef(bbh)) | 443 , fBBH(SkSafeRef(bbh)) |
614 , fAnalysis(*record) { | 444 , fRecordWillPlayBackBitmaps(SkRecordWillPlaybackBitmaps(*record)) { |
615 // TODO: delay as much of this work until just before first playback? | 445 // TODO: delay as much of this work until just before first playback? |
616 if (fBBH.get()) { | 446 if (fBBH.get()) { |
617 SkRecordFillBounds(*record, fBBH.get()); | 447 SkRecordFillBounds(*record, fBBH.get()); |
618 } | 448 } |
619 this->needsNewGenID(); | 449 this->needsNewGenID(); |
620 } | 450 } |
621 | 451 |
622 // Note that we are assuming that this entry point will only be called from | 452 // Note that we are assuming that this entry point will only be called from |
623 // one thread. Currently the only client of this method is | 453 // one thread. Currently the only client of this method is |
624 // SkGpuDevice::EXPERIMENTAL_optimize which should be only called from a single | 454 // SkGpuDevice::EXPERIMENTAL_optimize which should be only called from a single |
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641 int SkPicture::approximateOpCount() const { | 471 int SkPicture::approximateOpCount() const { |
642 SkASSERT(fRecord.get() || fData.get()); | 472 SkASSERT(fRecord.get() || fData.get()); |
643 if (fRecord.get()) { | 473 if (fRecord.get()) { |
644 return fRecord->count(); | 474 return fRecord->count(); |
645 } | 475 } |
646 if (fData.get()) { | 476 if (fData.get()) { |
647 return fData->opCount(); | 477 return fData->opCount(); |
648 } | 478 } |
649 return 0; | 479 return 0; |
650 } | 480 } |
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