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android / platform / external / chromium_org / third_party / skia / src / fd73c59646676e09023fe010647c121f9843eb99 / . / core / SkPicture.cpp
blob: 986dc424c9b9e467d39ac06e72d76dbeab030273 [file] [log] [blame]
epoger@google.com685cfc02011-07-28 14:26:00 +0000[diff] [blame]1
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]2/*
epoger@google.com685cfc02011-07-28 14:26:00 +0000[diff] [blame]3 * Copyright 2007 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
scroggo@google.com8b854502013-05-07 14:45:40 +0000[diff] [blame]9
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]10#include "SkPictureFlat.h"
11#include "SkPicturePlayback.h"
12#include "SkPictureRecord.h"
13
robertphillips@google.com2fd23902013-08-29 11:54:56 +0000[diff] [blame]14#include "SkBitmapDevice.h"
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]15#include "SkCanvas.h"
16#include "SkChunkAlloc.h"
17#include "SkPicture.h"
18#include "SkRegion.h"
19#include "SkStream.h"
20#include "SkTDArray.h"
21#include "SkTSearch.h"
22#include "SkTime.h"
23
24#include "SkReader32.h"
25#include "SkWriter32.h"
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000[diff] [blame]26#include "SkRTree.h"
27#include "SkBBoxHierarchyRecord.h"
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]28
commit-bot@chromium.org95cdc162014-03-19 21:24:25 +0000[diff] [blame]29#if SK_SUPPORT_GPU
30#include "GrContext.h"
31#endif
32
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]33#define DUMP_BUFFER_SIZE 65536
34
35//#define ENABLE_TIME_DRAW // dumps milliseconds for each draw
36
37
38#ifdef SK_DEBUG
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]39// enable SK_DEBUG_TRACE to trace DrawType elements when
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]40// recorded and played back
41// #define SK_DEBUG_TRACE
42// enable SK_DEBUG_SIZE to see the size of picture components
43// #define SK_DEBUG_SIZE
44// enable SK_DEBUG_DUMP to see the contents of recorded elements
45// #define SK_DEBUG_DUMP
46// enable SK_DEBUG_VALIDATE to check internal structures for consistency
47// #define SK_DEBUG_VALIDATE
48#endif
49
50#if defined SK_DEBUG_TRACE || defined SK_DEBUG_DUMP
51const char* DrawTypeToString(DrawType drawType) {
52 switch (drawType) {
53 case UNUSED: SkDebugf("DrawType UNUSED\n"); SkASSERT(0); break;
54 case CLIP_PATH: return "CLIP_PATH";
55 case CLIP_REGION: return "CLIP_REGION";
56 case CLIP_RECT: return "CLIP_RECT";
robertphillips@google.come7189be2013-02-15 17:19:15 +0000[diff] [blame]57 case CLIP_RRECT: return "CLIP_RRECT";
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]58 case CONCAT: return "CONCAT";
59 case DRAW_BITMAP: return "DRAW_BITMAP";
60 case DRAW_BITMAP_MATRIX: return "DRAW_BITMAP_MATRIX";
robertphillips@google.come7189be2013-02-15 17:19:15 +0000[diff] [blame]61 case DRAW_BITMAP_NINE: return "DRAW_BITMAP_NINE";
62 case DRAW_BITMAP_RECT_TO_RECT: return "DRAW_BITMAP_RECT_TO_RECT";
63 case DRAW_CLEAR: return "DRAW_CLEAR";
64 case DRAW_DATA: return "DRAW_DATA";
65 case DRAW_OVAL: return "DRAW_OVAL";
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]66 case DRAW_PAINT: return "DRAW_PAINT";
67 case DRAW_PATH: return "DRAW_PATH";
68 case DRAW_PICTURE: return "DRAW_PICTURE";
69 case DRAW_POINTS: return "DRAW_POINTS";
70 case DRAW_POS_TEXT: return "DRAW_POS_TEXT";
robertphillips@google.come7189be2013-02-15 17:19:15 +0000[diff] [blame]71 case DRAW_POS_TEXT_TOP_BOTTOM: return "DRAW_POS_TEXT_TOP_BOTTOM";
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]72 case DRAW_POS_TEXT_H: return "DRAW_POS_TEXT_H";
robertphillips@google.come7189be2013-02-15 17:19:15 +0000[diff] [blame]73 case DRAW_POS_TEXT_H_TOP_BOTTOM: return "DRAW_POS_TEXT_H_TOP_BOTTOM";
74 case DRAW_RECT: return "DRAW_RECT";
75 case DRAW_RRECT: return "DRAW_RRECT";
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]76 case DRAW_SPRITE: return "DRAW_SPRITE";
77 case DRAW_TEXT: return "DRAW_TEXT";
78 case DRAW_TEXT_ON_PATH: return "DRAW_TEXT_ON_PATH";
robertphillips@google.come7189be2013-02-15 17:19:15 +0000[diff] [blame]79 case DRAW_TEXT_TOP_BOTTOM: return "DRAW_TEXT_TOP_BOTTOM";
80 case DRAW_VERTICES: return "DRAW_VERTICES";
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]81 case RESTORE: return "RESTORE";
82 case ROTATE: return "ROTATE";
83 case SAVE: return "SAVE";
84 case SAVE_LAYER: return "SAVE_LAYER";
85 case SCALE: return "SCALE";
robertphillips@google.come7189be2013-02-15 17:19:15 +0000[diff] [blame]86 case SET_MATRIX: return "SET_MATRIX";
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]87 case SKEW: return "SKEW";
88 case TRANSLATE: return "TRANSLATE";
robertphillips@google.come7189be2013-02-15 17:19:15 +0000[diff] [blame]89 case NOOP: return "NOOP";
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]90 default:
91 SkDebugf("DrawType error 0x%08x\n", drawType);
92 SkASSERT(0);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]93 break;
94 }
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]95 SkASSERT(0);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]96 return NULL;
97}
98#endif
99
100#ifdef SK_DEBUG_VALIDATE
101static void validateMatrix(const SkMatrix* matrix) {
102 SkScalar scaleX = matrix->getScaleX();
103 SkScalar scaleY = matrix->getScaleY();
104 SkScalar skewX = matrix->getSkewX();
105 SkScalar skewY = matrix->getSkewY();
106 SkScalar perspX = matrix->getPerspX();
107 SkScalar perspY = matrix->getPerspY();
108 if (scaleX != 0 && skewX != 0)
109 SkDebugf("scaleX != 0 && skewX != 0\n");
110 SkASSERT(scaleX == 0 || skewX == 0);
111 SkASSERT(scaleY == 0 || skewY == 0);
112 SkASSERT(perspX == 0);
113 SkASSERT(perspY == 0);
114}
115#endif
116
117
118///////////////////////////////////////////////////////////////////////////////
119
120SkPicture::SkPicture() {
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]121 this->needsNewGenID();
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]122 fRecord = NULL;
123 fPlayback = NULL;
124 fWidth = fHeight = 0;
commit-bot@chromium.org73857a32014-03-16 19:46:36 +0000[diff] [blame]125 fAccelData = NULL;
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]126}
127
skia.committer@gmail.com8b5598b2014-03-17 03:02:17 +0000[diff] [blame]128SkPicture::SkPicture(const SkPicture& src)
commit-bot@chromium.org73857a32014-03-16 19:46:36 +0000[diff] [blame]129 : INHERITED()
130 , fAccelData(NULL) {
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]131 this->needsNewGenID();
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]132 fWidth = src.fWidth;
133 fHeight = src.fHeight;
134 fRecord = NULL;
135
136 /* We want to copy the src's playback. However, if that hasn't been built
137 yet, we need to fake a call to endRecording() without actually calling
138 it (since it is destructive, and we don't want to change src).
139 */
140 if (src.fPlayback) {
141 fPlayback = SkNEW_ARGS(SkPicturePlayback, (*src.fPlayback));
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]142 SkASSERT(NULL == src.fRecord);
commit-bot@chromium.orgb50bcb92014-04-07 18:26:22 +0000[diff] [blame]143 fUniqueID = src.uniqueID(); // need to call method to ensure != 0
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]144 } else if (src.fRecord) {
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]145 SkPictInfo info;
146 this->createHeader(&info);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]147 // here we do a fake src.endRecording()
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]148 fPlayback = SkNEW_ARGS(SkPicturePlayback, (*src.fRecord, info));
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]149 } else {
150 fPlayback = NULL;
151 }
152}
153
154SkPicture::~SkPicture() {
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]155 SkSafeUnref(fRecord);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]156 SkDELETE(fPlayback);
commit-bot@chromium.org73857a32014-03-16 19:46:36 +0000[diff] [blame]157 SkSafeUnref(fAccelData);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]158}
159
commit-bot@chromium.orge6e785e2014-03-04 19:08:57 +0000[diff] [blame]160void SkPicture::internalOnly_EnableOpts(bool enableOpts) {
161 if (NULL != fRecord) {
162 fRecord->internalOnly_EnableOpts(enableOpts);
163 }
164}
165
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]166void SkPicture::swap(SkPicture& other) {
commit-bot@chromium.orgb50bcb92014-04-07 18:26:22 +0000[diff] [blame]167 SkTSwap(fUniqueID, other.fUniqueID);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]168 SkTSwap(fRecord, other.fRecord);
169 SkTSwap(fPlayback, other.fPlayback);
commit-bot@chromium.org73857a32014-03-16 19:46:36 +0000[diff] [blame]170 SkTSwap(fAccelData, other.fAccelData);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]171 SkTSwap(fWidth, other.fWidth);
172 SkTSwap(fHeight, other.fHeight);
173}
174
djsollen@google.com3855f872012-08-29 18:52:07 +0000[diff] [blame]175SkPicture* SkPicture::clone() const {
176 SkPicture* clonedPicture = SkNEW(SkPicture);
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]177 this->clone(clonedPicture, 1);
djsollen@google.com3855f872012-08-29 18:52:07 +0000[diff] [blame]178 return clonedPicture;
179}
180
181void SkPicture::clone(SkPicture* pictures, int count) const {
182 SkPictCopyInfo copyInfo;
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]183 SkPictInfo info;
184 this->createHeader(&info);
djsollen@google.com3855f872012-08-29 18:52:07 +0000[diff] [blame]185
186 for (int i = 0; i < count; i++) {
187 SkPicture* clone = &pictures[i];
188
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]189 clone->needsNewGenID();
djsollen@google.com3855f872012-08-29 18:52:07 +0000[diff] [blame]190 clone->fWidth = fWidth;
191 clone->fHeight = fHeight;
commit-bot@chromium.orgefea6992014-02-14 17:27:10 +0000[diff] [blame]192 SkSafeSetNull(clone->fRecord);
scroggo@google.coma0dd4332012-11-02 20:51:19 +0000[diff] [blame]193 SkDELETE(clone->fPlayback);
194
djsollen@google.com3855f872012-08-29 18:52:07 +0000[diff] [blame]195 /* We want to copy the src's playback. However, if that hasn't been built
196 yet, we need to fake a call to endRecording() without actually calling
197 it (since it is destructive, and we don't want to change src).
198 */
199 if (fPlayback) {
200 clone->fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fPlayback, &copyInfo));
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]201 SkASSERT(NULL == fRecord);
commit-bot@chromium.orgb50bcb92014-04-07 18:26:22 +0000[diff] [blame]202 clone->fUniqueID = this->uniqueID(); // need to call method to ensure != 0
djsollen@google.com3855f872012-08-29 18:52:07 +0000[diff] [blame]203 } else if (fRecord) {
204 // here we do a fake src.endRecording()
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]205 clone->fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fRecord, info, true));
djsollen@google.com3855f872012-08-29 18:52:07 +0000[diff] [blame]206 } else {
207 clone->fPlayback = NULL;
208 }
209 }
210}
211
commit-bot@chromium.org73857a32014-03-16 19:46:36 +0000[diff] [blame]212SkPicture::AccelData::Domain SkPicture::AccelData::GenerateDomain() {
213 static int32_t gNextID = 0;
214
215 int32_t id = sk_atomic_inc(&gNextID);
216 if (id >= 1 << (8 * sizeof(Domain))) {
217 SK_CRASH();
218 }
219
220 return static_cast<Domain>(id);
221}
222
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]223///////////////////////////////////////////////////////////////////////////////
224
reed@android.comc4a55d72009-02-13 14:56:09 +0000[diff] [blame]225SkCanvas* SkPicture::beginRecording(int width, int height,
226 uint32_t recordingFlags) {
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]227 if (fPlayback) {
228 SkDELETE(fPlayback);
229 fPlayback = NULL;
230 }
commit-bot@chromium.org73857a32014-03-16 19:46:36 +0000[diff] [blame]231 SkSafeUnref(fAccelData);
commit-bot@chromium.orgefea6992014-02-14 17:27:10 +0000[diff] [blame]232 SkSafeSetNull(fRecord);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]233
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]234 this->needsNewGenID();
235
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]236 // Must be set before calling createBBoxHierarchy
237 fWidth = width;
238 fHeight = height;
239
commit-bot@chromium.orgca101d62014-02-17 15:28:00 +0000[diff] [blame]240 const SkISize size = SkISize::Make(width, height);
241
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000[diff] [blame]242 if (recordingFlags & kOptimizeForClippedPlayback_RecordingFlag) {
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]243 SkBBoxHierarchy* tree = this->createBBoxHierarchy();
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000[diff] [blame]244 SkASSERT(NULL != tree);
commit-bot@chromium.orgca101d62014-02-17 15:28:00 +0000[diff] [blame]245 fRecord = SkNEW_ARGS(SkBBoxHierarchyRecord, (size, recordingFlags, tree));
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000[diff] [blame]246 tree->unref();
247 } else {
commit-bot@chromium.orgca101d62014-02-17 15:28:00 +0000[diff] [blame]248 fRecord = SkNEW_ARGS(SkPictureRecord, (size, recordingFlags));
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000[diff] [blame]249 }
reed@google.com118a6d02012-09-27 20:31:31 +0000[diff] [blame]250 fRecord->beginRecording();
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]251
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]252 return fRecord;
253}
254
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]255SkBBoxHierarchy* SkPicture::createBBoxHierarchy() const {
commit-bot@chromium.orgfd73c592014-04-16 16:02:10 +0000[diff] [blame^]256 // TODO: this code is now replicated in SkRTreePicture. Once all external
257 // clients have been weaned off of kOptimizeForClippedPlayback_RecordingFlag,
258 // this code can be removed.
259
skia.committer@gmail.com8d230dd2012-11-02 02:01:24 +0000[diff] [blame]260 // These values were empirically determined to produce reasonable
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]261 // performance in most cases.
262 static const int kRTreeMinChildren = 6;
263 static const int kRTreeMaxChildren = 11;
264
265 SkScalar aspectRatio = SkScalarDiv(SkIntToScalar(fWidth),
266 SkIntToScalar(fHeight));
sglez@google.com9baab6f2013-08-30 17:27:47 +0000[diff] [blame]267 bool sortDraws = false; // Do not sort draw calls when bulk loading.
268
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]269 return SkRTree::Create(kRTreeMinChildren, kRTreeMaxChildren,
sglez@google.com9baab6f2013-08-30 17:27:47 +0000[diff] [blame]270 aspectRatio, sortDraws);
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]271}
272
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]273SkCanvas* SkPicture::getRecordingCanvas() const {
274 // will be null if we are not recording
275 return fRecord;
276}
277
278void SkPicture::endRecording() {
279 if (NULL == fPlayback) {
280 if (NULL != fRecord) {
junov@chromium.org9aa18db2012-07-12 17:47:34 +0000[diff] [blame]281 fRecord->endRecording();
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]282 SkPictInfo info;
283 this->createHeader(&info);
284 fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fRecord, info));
commit-bot@chromium.orgefea6992014-02-14 17:27:10 +0000[diff] [blame]285 SkSafeSetNull(fRecord);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]286 }
287 }
288 SkASSERT(NULL == fRecord);
289}
290
commit-bot@chromium.org4b918972014-03-18 17:45:32 +0000[diff] [blame]291const SkPicture::OperationList& SkPicture::OperationList::InvalidList() {
292 static OperationList gInvalid;
293 return gInvalid;
294}
295
296const SkPicture::OperationList& SkPicture::EXPERIMENTAL_getActiveOps(const SkIRect& queryRect) {
robertphillips@google.com6dd381b2014-04-13 19:09:42 +0000[diff] [blame]297 this->endRecording(); // TODO: remove eventually
commit-bot@chromium.org4b918972014-03-18 17:45:32 +0000[diff] [blame]298 if (NULL != fPlayback) {
299 return fPlayback->getActiveOps(queryRect);
300 }
301 return OperationList::InvalidList();
302}
303
commit-bot@chromium.org0ea71132014-03-24 19:40:49 +0000[diff] [blame]304size_t SkPicture::EXPERIMENTAL_curOpID() const {
305 if (NULL != fPlayback) {
306 return fPlayback->curOpID();
307 }
308 return 0;
309}
310
reed@google.com2b3a5082013-05-20 17:02:41 +0000[diff] [blame]311void SkPicture::draw(SkCanvas* surface, SkDrawPictureCallback* callback) {
robertphillips@google.com6dd381b2014-04-13 19:09:42 +0000[diff] [blame]312 this->endRecording(); // TODO: remove eventually
commit-bot@chromium.org73857a32014-03-16 19:46:36 +0000[diff] [blame]313 if (NULL != fPlayback) {
reed@google.com2b3a5082013-05-20 17:02:41 +0000[diff] [blame]314 fPlayback->draw(*surface, callback);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]315 }
316}
317
318///////////////////////////////////////////////////////////////////////////////
319
320#include "SkStream.h"
321
rmistry@google.com8793ad72013-12-02 13:50:38 +0000[diff] [blame]322static const char kMagic[] = { 's', 'k', 'i', 'a', 'p', 'i', 'c', 't' };
commit-bot@chromium.org060e3a52014-03-12 14:46:41 +0000[diff] [blame]323
324bool SkPicture::IsValidPictInfo(const SkPictInfo& info) {
325 if (0 != memcmp(info.fMagic, kMagic, sizeof(kMagic))) {
326 return false;
327 }
328
329 if (info.fVersion < MIN_PICTURE_VERSION ||
330 info.fVersion > CURRENT_PICTURE_VERSION) {
331 return false;
332 }
333
334 return true;
335}
rmistry@google.com8793ad72013-12-02 13:50:38 +0000[diff] [blame]336
commit-bot@chromium.orgabad6d62014-03-03 19:18:39 +0000[diff] [blame]337bool SkPicture::InternalOnly_StreamIsSKP(SkStream* stream, SkPictInfo* pInfo) {
scroggo@google.com3b990302013-06-28 21:32:00 +0000[diff] [blame]338 if (NULL == stream) {
339 return false;
borenet@google.com30dda202012-09-17 18:26:06 +0000[diff] [blame]340 }
reed@google.com4bca7f62012-06-22 15:38:39 +0000[diff] [blame]341
rmistry@google.com8793ad72013-12-02 13:50:38 +0000[diff] [blame]342 // Check magic bytes.
reed@google.com4bca7f62012-06-22 15:38:39 +0000[diff] [blame]343 SkPictInfo info;
commit-bot@chromium.org060e3a52014-03-12 14:46:41 +0000[diff] [blame]344 SkASSERT(sizeof(kMagic) == sizeof(info.fMagic));
345 if (!stream->read(&info, sizeof(info)) || !IsValidPictInfo(info)) {
scroggo@google.com3b990302013-06-28 21:32:00 +0000[diff] [blame]346 return false;
reed@google.com4bca7f62012-06-22 15:38:39 +0000[diff] [blame]347 }
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]348
scroggo@google.com3b990302013-06-28 21:32:00 +0000[diff] [blame]349 if (pInfo != NULL) {
350 *pInfo = info;
351 }
352 return true;
353}
354
commit-bot@chromium.orgabad6d62014-03-03 19:18:39 +0000[diff] [blame]355bool SkPicture::InternalOnly_BufferIsSKP(SkReadBuffer& buffer, SkPictInfo* pInfo) {
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]356 // Check magic bytes.
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]357 SkPictInfo info;
commit-bot@chromium.org060e3a52014-03-12 14:46:41 +0000[diff] [blame]358 SkASSERT(sizeof(kMagic) == sizeof(info.fMagic));
359 if (!buffer.readByteArray(&info, sizeof(info)) || !IsValidPictInfo(info)) {
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]360 return false;
361 }
362
363 if (pInfo != NULL) {
364 *pInfo = info;
365 }
366 return true;
367}
368
scroggo@google.com3b990302013-06-28 21:32:00 +0000[diff] [blame]369SkPicture::SkPicture(SkPicturePlayback* playback, int width, int height)
370 : fPlayback(playback)
371 , fRecord(NULL)
372 , fWidth(width)
commit-bot@chromium.org73857a32014-03-16 19:46:36 +0000[diff] [blame]373 , fHeight(height)
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]374 , fAccelData(NULL) {
375 this->needsNewGenID();
376}
scroggo@google.com3b990302013-06-28 21:32:00 +0000[diff] [blame]377
378SkPicture* SkPicture::CreateFromStream(SkStream* stream, InstallPixelRefProc proc) {
379 SkPictInfo info;
380
commit-bot@chromium.orgabad6d62014-03-03 19:18:39 +0000[diff] [blame]381 if (!InternalOnly_StreamIsSKP(stream, &info)) {
scroggo@google.com3b990302013-06-28 21:32:00 +0000[diff] [blame]382 return NULL;
383 }
384
385 SkPicturePlayback* playback;
386 // Check to see if there is a playback to recreate.
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]387 if (stream->readBool()) {
scroggo@google.com3b7431c2013-10-01 15:30:46 +0000[diff] [blame]388 playback = SkPicturePlayback::CreateFromStream(stream, info, proc);
389 if (NULL == playback) {
390 return NULL;
391 }
scroggo@google.com3b990302013-06-28 21:32:00 +0000[diff] [blame]392 } else {
393 playback = NULL;
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]394 }
reed@google.com4bca7f62012-06-22 15:38:39 +0000[diff] [blame]395
scroggo@google.com3b990302013-06-28 21:32:00 +0000[diff] [blame]396 return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight));
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]397}
398
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]399SkPicture* SkPicture::CreateFromBuffer(SkReadBuffer& buffer) {
400 SkPictInfo info;
401
commit-bot@chromium.orgabad6d62014-03-03 19:18:39 +0000[diff] [blame]402 if (!InternalOnly_BufferIsSKP(buffer, &info)) {
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]403 return NULL;
404 }
405
406 SkPicturePlayback* playback;
407 // Check to see if there is a playback to recreate.
408 if (buffer.readBool()) {
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]409 playback = SkPicturePlayback::CreateFromBuffer(buffer, info);
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]410 if (NULL == playback) {
411 return NULL;
412 }
413 } else {
414 playback = NULL;
415 }
416
417 return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight));
418}
419
commit-bot@chromium.org060e3a52014-03-12 14:46:41 +0000[diff] [blame]420void SkPicture::createHeader(SkPictInfo* info) const {
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]421 // Copy magic bytes at the beginning of the header
422 SkASSERT(sizeof(kMagic) == 8);
commit-bot@chromium.org060e3a52014-03-12 14:46:41 +0000[diff] [blame]423 SkASSERT(sizeof(kMagic) == sizeof(info->fMagic));
424 memcpy(info->fMagic, kMagic, sizeof(kMagic));
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]425
commit-bot@chromium.orgabad6d62014-03-03 19:18:39 +0000[diff] [blame]426 // Set picture info after magic bytes in the header
commit-bot@chromium.org338284f2014-02-25 02:16:10 +0000[diff] [blame]427 info->fVersion = CURRENT_PICTURE_VERSION;
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]428 info->fWidth = fWidth;
429 info->fHeight = fHeight;
430 info->fFlags = SkPictInfo::kCrossProcess_Flag;
431 // TODO: remove this flag, since we're always float (now)
432 info->fFlags |= SkPictInfo::kScalarIsFloat_Flag;
433
434 if (8 == sizeof(void*)) {
435 info->fFlags |= SkPictInfo::kPtrIs64Bit_Flag;
436 }
437}
438
scroggo@google.com2e727312013-02-22 22:04:19 +0000[diff] [blame]439void SkPicture::serialize(SkWStream* stream, EncodeBitmap encoder) const {
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]440 SkPicturePlayback* playback = fPlayback;
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]441
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]442 SkPictInfo info;
443 this->createHeader(&info);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]444 if (NULL == playback && fRecord) {
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]445 playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord, info));
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]446 }
447
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]448 stream->write(&info, sizeof(info));
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]449 if (playback) {
450 stream->writeBool(true);
scroggo@google.com6ff73172012-10-04 21:46:08 +0000[diff] [blame]451 playback->serialize(stream, encoder);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]452 // delete playback if it is a local version (i.e. cons'd up just now)
453 if (playback != fPlayback) {
454 SkDELETE(playback);
455 }
456 } else {
457 stream->writeBool(false);
458 }
459}
460
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]461void SkPicture::flatten(SkWriteBuffer& buffer) const {
462 SkPicturePlayback* playback = fPlayback;
463
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]464 SkPictInfo info;
465 this->createHeader(&info);
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]466 if (NULL == playback && fRecord) {
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]467 playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord, info));
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]468 }
469
commit-bot@chromium.org206dc582014-03-28 18:05:47 +0000[diff] [blame]470 buffer.writeByteArray(&info, sizeof(info));
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000[diff] [blame]471 if (playback) {
472 buffer.writeBool(true);
473 playback->flatten(buffer);
474 // delete playback if it is a local version (i.e. cons'd up just now)
475 if (playback != fPlayback) {
476 SkDELETE(playback);
477 }
478 } else {
479 buffer.writeBool(false);
480 }
481}
482
commit-bot@chromium.org05937b42014-03-19 22:54:40 +0000[diff] [blame]483#if SK_SUPPORT_GPU
commit-bot@chromium.org95cdc162014-03-19 21:24:25 +0000[diff] [blame]484bool SkPicture::suitableForGpuRasterization(GrContext* context) const {
485 // Stub for now; never veto GPu rasterization.
486 return true;
487}
commit-bot@chromium.org05937b42014-03-19 22:54:40 +0000[diff] [blame]488#endif
commit-bot@chromium.org95cdc162014-03-19 21:24:25 +0000[diff] [blame]489
tomhudson@google.comc7941702013-10-24 11:12:47 +0000[diff] [blame]490bool SkPicture::willPlayBackBitmaps() const {
commit-bot@chromium.org73857a32014-03-16 19:46:36 +0000[diff] [blame]491 if (!fPlayback) {
492 return false;
493 }
tomhudson@google.comc7941702013-10-24 11:12:47 +0000[diff] [blame]494 return fPlayback->containsBitmaps();
495}
496
djsollen@google.com6789a342013-02-01 16:18:09 +0000[diff] [blame]497#ifdef SK_BUILD_FOR_ANDROID
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]498void SkPicture::abortPlayback() {
499 if (NULL == fPlayback) {
500 return;
501 }
502 fPlayback->abort();
503}
djsollen@google.com6789a342013-02-01 16:18:09 +0000[diff] [blame]504#endif
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]505
506static int32_t next_picture_generation_id() {
507 static int32_t gPictureGenerationID = 0;
508 // do a loop in case our global wraps around, as we never want to
509 // return a 0
510 int32_t genID;
511 do {
512 genID = sk_atomic_inc(&gPictureGenerationID) + 1;
commit-bot@chromium.orgb50bcb92014-04-07 18:26:22 +0000[diff] [blame]513 } while (SK_InvalidGenID == genID);
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]514 return genID;
515}
516
commit-bot@chromium.orgb50bcb92014-04-07 18:26:22 +0000[diff] [blame]517uint32_t SkPicture::uniqueID() const {
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]518 if (NULL != fRecord) {
519 SkASSERT(NULL == fPlayback);
commit-bot@chromium.orgb50bcb92014-04-07 18:26:22 +0000[diff] [blame]520 return SK_InvalidGenID;
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]521 }
522
commit-bot@chromium.orgb50bcb92014-04-07 18:26:22 +0000[diff] [blame]523 if (SK_InvalidGenID == fUniqueID) {
524 fUniqueID = next_picture_generation_id();
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]525 }
commit-bot@chromium.orgb50bcb92014-04-07 18:26:22 +0000[diff] [blame]526 return fUniqueID;
robertphillips@google.com647fe7f2014-04-02 23:51:13 +0000[diff] [blame]527}