[go: nahoru, domu]

blob: e226c2642ac1e0d4a6ad23a8ce4a218795937c06 [file] [log] [blame]
epoger@google.com685cfc02011-07-28 14:26:00 +00001
reed@android.combcd4d5a2008-12-17 15:59:43 +00002/*
epoger@google.com685cfc02011-07-28 14:26:00 +00003 * 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 +00009
reed@android.combcd4d5a2008-12-17 15:59:43 +000010#include "SkPictureFlat.h"
11#include "SkPicturePlayback.h"
12#include "SkPictureRecord.h"
13
robertphillips@google.com2fd23902013-08-29 11:54:56 +000014#include "SkBitmapDevice.h"
reed@android.combcd4d5a2008-12-17 15:59:43 +000015#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 +000026#include "SkRTree.h"
27#include "SkBBoxHierarchyRecord.h"
reed@android.combcd4d5a2008-12-17 15:59:43 +000028
29#define DUMP_BUFFER_SIZE 65536
30
31//#define ENABLE_TIME_DRAW // dumps milliseconds for each draw
32
33
34#ifdef SK_DEBUG
reed@google.com91911482011-02-07 15:30:46 +000035// enable SK_DEBUG_TRACE to trace DrawType elements when
reed@android.combcd4d5a2008-12-17 15:59:43 +000036// recorded and played back
37// #define SK_DEBUG_TRACE
38// enable SK_DEBUG_SIZE to see the size of picture components
39// #define SK_DEBUG_SIZE
40// enable SK_DEBUG_DUMP to see the contents of recorded elements
41// #define SK_DEBUG_DUMP
42// enable SK_DEBUG_VALIDATE to check internal structures for consistency
43// #define SK_DEBUG_VALIDATE
44#endif
45
46#if defined SK_DEBUG_TRACE || defined SK_DEBUG_DUMP
47const char* DrawTypeToString(DrawType drawType) {
48 switch (drawType) {
49 case UNUSED: SkDebugf("DrawType UNUSED\n"); SkASSERT(0); break;
50 case CLIP_PATH: return "CLIP_PATH";
51 case CLIP_REGION: return "CLIP_REGION";
52 case CLIP_RECT: return "CLIP_RECT";
robertphillips@google.come7189be2013-02-15 17:19:15 +000053 case CLIP_RRECT: return "CLIP_RRECT";
reed@android.combcd4d5a2008-12-17 15:59:43 +000054 case CONCAT: return "CONCAT";
55 case DRAW_BITMAP: return "DRAW_BITMAP";
56 case DRAW_BITMAP_MATRIX: return "DRAW_BITMAP_MATRIX";
robertphillips@google.come7189be2013-02-15 17:19:15 +000057 case DRAW_BITMAP_NINE: return "DRAW_BITMAP_NINE";
58 case DRAW_BITMAP_RECT_TO_RECT: return "DRAW_BITMAP_RECT_TO_RECT";
59 case DRAW_CLEAR: return "DRAW_CLEAR";
60 case DRAW_DATA: return "DRAW_DATA";
61 case DRAW_OVAL: return "DRAW_OVAL";
reed@android.combcd4d5a2008-12-17 15:59:43 +000062 case DRAW_PAINT: return "DRAW_PAINT";
63 case DRAW_PATH: return "DRAW_PATH";
64 case DRAW_PICTURE: return "DRAW_PICTURE";
65 case DRAW_POINTS: return "DRAW_POINTS";
66 case DRAW_POS_TEXT: return "DRAW_POS_TEXT";
robertphillips@google.come7189be2013-02-15 17:19:15 +000067 case DRAW_POS_TEXT_TOP_BOTTOM: return "DRAW_POS_TEXT_TOP_BOTTOM";
reed@android.combcd4d5a2008-12-17 15:59:43 +000068 case DRAW_POS_TEXT_H: return "DRAW_POS_TEXT_H";
robertphillips@google.come7189be2013-02-15 17:19:15 +000069 case DRAW_POS_TEXT_H_TOP_BOTTOM: return "DRAW_POS_TEXT_H_TOP_BOTTOM";
70 case DRAW_RECT: return "DRAW_RECT";
71 case DRAW_RRECT: return "DRAW_RRECT";
reed@android.combcd4d5a2008-12-17 15:59:43 +000072 case DRAW_SPRITE: return "DRAW_SPRITE";
73 case DRAW_TEXT: return "DRAW_TEXT";
74 case DRAW_TEXT_ON_PATH: return "DRAW_TEXT_ON_PATH";
robertphillips@google.come7189be2013-02-15 17:19:15 +000075 case DRAW_TEXT_TOP_BOTTOM: return "DRAW_TEXT_TOP_BOTTOM";
76 case DRAW_VERTICES: return "DRAW_VERTICES";
reed@android.combcd4d5a2008-12-17 15:59:43 +000077 case RESTORE: return "RESTORE";
78 case ROTATE: return "ROTATE";
79 case SAVE: return "SAVE";
80 case SAVE_LAYER: return "SAVE_LAYER";
81 case SCALE: return "SCALE";
robertphillips@google.come7189be2013-02-15 17:19:15 +000082 case SET_MATRIX: return "SET_MATRIX";
reed@android.combcd4d5a2008-12-17 15:59:43 +000083 case SKEW: return "SKEW";
84 case TRANSLATE: return "TRANSLATE";
robertphillips@google.come7189be2013-02-15 17:19:15 +000085 case NOOP: return "NOOP";
reed@google.com91911482011-02-07 15:30:46 +000086 default:
87 SkDebugf("DrawType error 0x%08x\n", drawType);
88 SkASSERT(0);
reed@android.combcd4d5a2008-12-17 15:59:43 +000089 break;
90 }
reed@google.com91911482011-02-07 15:30:46 +000091 SkASSERT(0);
reed@android.combcd4d5a2008-12-17 15:59:43 +000092 return NULL;
93}
94#endif
95
96#ifdef SK_DEBUG_VALIDATE
97static void validateMatrix(const SkMatrix* matrix) {
98 SkScalar scaleX = matrix->getScaleX();
99 SkScalar scaleY = matrix->getScaleY();
100 SkScalar skewX = matrix->getSkewX();
101 SkScalar skewY = matrix->getSkewY();
102 SkScalar perspX = matrix->getPerspX();
103 SkScalar perspY = matrix->getPerspY();
104 if (scaleX != 0 && skewX != 0)
105 SkDebugf("scaleX != 0 && skewX != 0\n");
106 SkASSERT(scaleX == 0 || skewX == 0);
107 SkASSERT(scaleY == 0 || skewY == 0);
108 SkASSERT(perspX == 0);
109 SkASSERT(perspY == 0);
110}
111#endif
112
113
114///////////////////////////////////////////////////////////////////////////////
115
116SkPicture::SkPicture() {
117 fRecord = NULL;
118 fPlayback = NULL;
119 fWidth = fHeight = 0;
120}
121
commit-bot@chromium.orgd069f9a2013-07-23 11:13:56 +0000122SkPicture::SkPicture(const SkPicture& src) : INHERITED() {
reed@android.combcd4d5a2008-12-17 15:59:43 +0000123 fWidth = src.fWidth;
124 fHeight = src.fHeight;
125 fRecord = NULL;
126
127 /* We want to copy the src's playback. However, if that hasn't been built
128 yet, we need to fake a call to endRecording() without actually calling
129 it (since it is destructive, and we don't want to change src).
130 */
131 if (src.fPlayback) {
132 fPlayback = SkNEW_ARGS(SkPicturePlayback, (*src.fPlayback));
133 } else if (src.fRecord) {
134 // here we do a fake src.endRecording()
135 fPlayback = SkNEW_ARGS(SkPicturePlayback, (*src.fRecord));
136 } else {
137 fPlayback = NULL;
138 }
139}
140
141SkPicture::~SkPicture() {
reed@google.com91911482011-02-07 15:30:46 +0000142 SkSafeUnref(fRecord);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000143 SkDELETE(fPlayback);
144}
145
146void SkPicture::swap(SkPicture& other) {
147 SkTSwap(fRecord, other.fRecord);
148 SkTSwap(fPlayback, other.fPlayback);
149 SkTSwap(fWidth, other.fWidth);
150 SkTSwap(fHeight, other.fHeight);
151}
152
djsollen@google.com3855f872012-08-29 18:52:07 +0000153SkPicture* SkPicture::clone() const {
154 SkPicture* clonedPicture = SkNEW(SkPicture);
155 clone(clonedPicture, 1);
156 return clonedPicture;
157}
158
159void SkPicture::clone(SkPicture* pictures, int count) const {
160 SkPictCopyInfo copyInfo;
161
162 for (int i = 0; i < count; i++) {
163 SkPicture* clone = &pictures[i];
164
165 clone->fWidth = fWidth;
166 clone->fHeight = fHeight;
167 clone->fRecord = NULL;
168
scroggo@google.coma0dd4332012-11-02 20:51:19 +0000169 if (NULL != clone->fRecord) {
170 clone->fRecord->unref();
171 clone->fRecord = NULL;
172 }
173 SkDELETE(clone->fPlayback);
174
djsollen@google.com3855f872012-08-29 18:52:07 +0000175 /* We want to copy the src's playback. However, if that hasn't been built
176 yet, we need to fake a call to endRecording() without actually calling
177 it (since it is destructive, and we don't want to change src).
178 */
179 if (fPlayback) {
180 clone->fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fPlayback, &copyInfo));
181 } else if (fRecord) {
182 // here we do a fake src.endRecording()
183 clone->fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fRecord, true));
184 } else {
185 clone->fPlayback = NULL;
186 }
187 }
188}
189
reed@android.combcd4d5a2008-12-17 15:59:43 +0000190///////////////////////////////////////////////////////////////////////////////
191
reed@android.comc4a55d72009-02-13 14:56:09 +0000192SkCanvas* SkPicture::beginRecording(int width, int height,
193 uint32_t recordingFlags) {
reed@android.combcd4d5a2008-12-17 15:59:43 +0000194 if (fPlayback) {
195 SkDELETE(fPlayback);
196 fPlayback = NULL;
197 }
198
199 if (NULL != fRecord) {
200 fRecord->unref();
201 fRecord = NULL;
202 }
203
reed@google.com118a6d02012-09-27 20:31:31 +0000204 SkBitmap bm;
205 bm.setConfig(SkBitmap::kNo_Config, width, height);
robertphillips@google.com2fd23902013-08-29 11:54:56 +0000206 SkAutoTUnref<SkBaseDevice> dev(SkNEW_ARGS(SkBitmapDevice, (bm)));
reed@google.com118a6d02012-09-27 20:31:31 +0000207
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000208 // Must be set before calling createBBoxHierarchy
209 fWidth = width;
210 fHeight = height;
211
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000212 if (recordingFlags & kOptimizeForClippedPlayback_RecordingFlag) {
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000213 SkBBoxHierarchy* tree = this->createBBoxHierarchy();
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000214 SkASSERT(NULL != tree);
reed@google.com118a6d02012-09-27 20:31:31 +0000215 fRecord = SkNEW_ARGS(SkBBoxHierarchyRecord, (recordingFlags, tree, dev));
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000216 tree->unref();
217 } else {
reed@google.com118a6d02012-09-27 20:31:31 +0000218 fRecord = SkNEW_ARGS(SkPictureRecord, (recordingFlags, dev));
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000219 }
reed@google.com118a6d02012-09-27 20:31:31 +0000220 fRecord->beginRecording();
reed@android.combcd4d5a2008-12-17 15:59:43 +0000221
reed@android.combcd4d5a2008-12-17 15:59:43 +0000222 return fRecord;
223}
224
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000225SkBBoxHierarchy* SkPicture::createBBoxHierarchy() const {
skia.committer@gmail.com8d230dd2012-11-02 02:01:24 +0000226 // These values were empirically determined to produce reasonable
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000227 // performance in most cases.
228 static const int kRTreeMinChildren = 6;
229 static const int kRTreeMaxChildren = 11;
230
231 SkScalar aspectRatio = SkScalarDiv(SkIntToScalar(fWidth),
232 SkIntToScalar(fHeight));
sglez@google.com9baab6f2013-08-30 17:27:47 +0000233 bool sortDraws = false; // Do not sort draw calls when bulk loading.
234
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000235 return SkRTree::Create(kRTreeMinChildren, kRTreeMaxChildren,
sglez@google.com9baab6f2013-08-30 17:27:47 +0000236 aspectRatio, sortDraws);
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000237}
238
reed@android.combcd4d5a2008-12-17 15:59:43 +0000239SkCanvas* SkPicture::getRecordingCanvas() const {
240 // will be null if we are not recording
241 return fRecord;
242}
243
244void SkPicture::endRecording() {
245 if (NULL == fPlayback) {
246 if (NULL != fRecord) {
junov@chromium.org9aa18db2012-07-12 17:47:34 +0000247 fRecord->endRecording();
reed@android.combcd4d5a2008-12-17 15:59:43 +0000248 fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fRecord));
249 fRecord->unref();
250 fRecord = NULL;
251 }
252 }
253 SkASSERT(NULL == fRecord);
254}
255
reed@google.com2b3a5082013-05-20 17:02:41 +0000256void SkPicture::draw(SkCanvas* surface, SkDrawPictureCallback* callback) {
reed@android.combcd4d5a2008-12-17 15:59:43 +0000257 this->endRecording();
258 if (fPlayback) {
reed@google.com2b3a5082013-05-20 17:02:41 +0000259 fPlayback->draw(*surface, callback);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000260 }
261}
262
263///////////////////////////////////////////////////////////////////////////////
264
265#include "SkStream.h"
266
rmistry@google.com8793ad72013-12-02 13:50:38 +0000267static const char kMagic[] = { 's', 'k', 'i', 'a', 'p', 'i', 'c', 't' };
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000268static const size_t kHeaderSize = sizeof(kMagic) + sizeof(SkPictInfo);
rmistry@google.com8793ad72013-12-02 13:50:38 +0000269
scroggo@google.com3b990302013-06-28 21:32:00 +0000270bool SkPicture::StreamIsSKP(SkStream* stream, SkPictInfo* pInfo) {
271 if (NULL == stream) {
272 return false;
borenet@google.com30dda202012-09-17 18:26:06 +0000273 }
reed@google.com4bca7f62012-06-22 15:38:39 +0000274
rmistry@google.com8793ad72013-12-02 13:50:38 +0000275 // Check magic bytes.
276 char magic[sizeof(kMagic)];
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000277 if (!stream->read(magic, sizeof(kMagic)) ||
278 (0 != memcmp(magic, kMagic, sizeof(kMagic)))) {
rmistry@google.com8793ad72013-12-02 13:50:38 +0000279 return false;
280 }
281
reed@google.com4bca7f62012-06-22 15:38:39 +0000282 SkPictInfo info;
scroggo@google.com3b990302013-06-28 21:32:00 +0000283 if (!stream->read(&info, sizeof(SkPictInfo))) {
284 return false;
reed@google.com4bca7f62012-06-22 15:38:39 +0000285 }
robertphillips@google.com264d90f2013-12-03 19:46:58 +0000286
commit-bot@chromium.orga6cb8d42014-01-23 15:16:05 +0000287 if (PICTURE_VERSION != info.fVersion) {
scroggo@google.com3b990302013-06-28 21:32:00 +0000288 return false;
reed@google.com4bca7f62012-06-22 15:38:39 +0000289 }
reed@android.combcd4d5a2008-12-17 15:59:43 +0000290
scroggo@google.com3b990302013-06-28 21:32:00 +0000291 if (pInfo != NULL) {
292 *pInfo = info;
293 }
294 return true;
295}
296
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000297bool SkPicture::BufferIsSKP(SkReadBuffer& buffer, SkPictInfo* pInfo) {
298 // Check magic bytes.
299 char magic[sizeof(kMagic)];
300
301 if (!buffer.readByteArray(magic, sizeof(kMagic)) ||
302 (0 != memcmp(magic, kMagic, sizeof(kMagic)))) {
303 return false;
304 }
305
306 SkPictInfo info;
307 if (!buffer.readByteArray(&info, sizeof(SkPictInfo))) {
308 return false;
309 }
310
311 if (PICTURE_VERSION != info.fVersion) {
312 return false;
313 }
314
315 if (pInfo != NULL) {
316 *pInfo = info;
317 }
318 return true;
319}
320
scroggo@google.com3b990302013-06-28 21:32:00 +0000321SkPicture::SkPicture(SkPicturePlayback* playback, int width, int height)
322 : fPlayback(playback)
323 , fRecord(NULL)
324 , fWidth(width)
325 , fHeight(height) {}
326
327SkPicture* SkPicture::CreateFromStream(SkStream* stream, InstallPixelRefProc proc) {
328 SkPictInfo info;
329
330 if (!StreamIsSKP(stream, &info)) {
331 return NULL;
332 }
333
334 SkPicturePlayback* playback;
335 // Check to see if there is a playback to recreate.
reed@android.combcd4d5a2008-12-17 15:59:43 +0000336 if (stream->readBool()) {
scroggo@google.com3b7431c2013-10-01 15:30:46 +0000337 playback = SkPicturePlayback::CreateFromStream(stream, info, proc);
338 if (NULL == playback) {
339 return NULL;
340 }
scroggo@google.com3b990302013-06-28 21:32:00 +0000341 } else {
342 playback = NULL;
reed@android.combcd4d5a2008-12-17 15:59:43 +0000343 }
reed@google.com4bca7f62012-06-22 15:38:39 +0000344
scroggo@google.com3b990302013-06-28 21:32:00 +0000345 return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight));
reed@android.combcd4d5a2008-12-17 15:59:43 +0000346}
347
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000348SkPicture* SkPicture::CreateFromBuffer(SkReadBuffer& buffer) {
349 SkPictInfo info;
350
351 if (!BufferIsSKP(buffer, &info)) {
352 return NULL;
353 }
354
355 SkPicturePlayback* playback;
356 // Check to see if there is a playback to recreate.
357 if (buffer.readBool()) {
358 playback = SkPicturePlayback::CreateFromBuffer(buffer);
359 if (NULL == playback) {
360 return NULL;
361 }
362 } else {
363 playback = NULL;
364 }
365
366 return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight));
367}
368
369void SkPicture::createHeader(void* header) const {
370 // Copy magic bytes at the beginning of the header
371 SkASSERT(sizeof(kMagic) == 8);
372 memcpy(header, kMagic, sizeof(kMagic));
373
374 // Set piture info after magic bytes in the header
375 SkPictInfo* info = (SkPictInfo*)(((char*)header) + sizeof(kMagic));
376 info->fVersion = PICTURE_VERSION;
377 info->fWidth = fWidth;
378 info->fHeight = fHeight;
379 info->fFlags = SkPictInfo::kCrossProcess_Flag;
380 // TODO: remove this flag, since we're always float (now)
381 info->fFlags |= SkPictInfo::kScalarIsFloat_Flag;
382
383 if (8 == sizeof(void*)) {
384 info->fFlags |= SkPictInfo::kPtrIs64Bit_Flag;
385 }
386}
387
scroggo@google.com2e727312013-02-22 22:04:19 +0000388void SkPicture::serialize(SkWStream* stream, EncodeBitmap encoder) const {
reed@android.combcd4d5a2008-12-17 15:59:43 +0000389 SkPicturePlayback* playback = fPlayback;
reed@google.com91911482011-02-07 15:30:46 +0000390
reed@android.combcd4d5a2008-12-17 15:59:43 +0000391 if (NULL == playback && fRecord) {
392 playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord));
393 }
394
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000395 char header[kHeaderSize];
396 createHeader(&header);
397 stream->write(header, kHeaderSize);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000398 if (playback) {
399 stream->writeBool(true);
scroggo@google.com6ff73172012-10-04 21:46:08 +0000400 playback->serialize(stream, encoder);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000401 // delete playback if it is a local version (i.e. cons'd up just now)
402 if (playback != fPlayback) {
403 SkDELETE(playback);
404 }
405 } else {
406 stream->writeBool(false);
407 }
408}
409
commit-bot@chromium.org7183ff62014-02-07 12:20:04 +0000410void SkPicture::flatten(SkWriteBuffer& buffer) const {
411 SkPicturePlayback* playback = fPlayback;
412
413 if (NULL == playback && fRecord) {
414 playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord));
415 }
416
417 char header[kHeaderSize];
418 createHeader(&header);
419 buffer.writeByteArray(header, kHeaderSize);
420 if (playback) {
421 buffer.writeBool(true);
422 playback->flatten(buffer);
423 // delete playback if it is a local version (i.e. cons'd up just now)
424 if (playback != fPlayback) {
425 SkDELETE(playback);
426 }
427 } else {
428 buffer.writeBool(false);
429 }
430}
431
tomhudson@google.comc7941702013-10-24 11:12:47 +0000432bool SkPicture::willPlayBackBitmaps() const {
433 if (!fPlayback) return false;
434 return fPlayback->containsBitmaps();
435}
436
djsollen@google.com6789a342013-02-01 16:18:09 +0000437#ifdef SK_BUILD_FOR_ANDROID
reed@android.combcd4d5a2008-12-17 15:59:43 +0000438void SkPicture::abortPlayback() {
439 if (NULL == fPlayback) {
440 return;
441 }
442 fPlayback->abort();
443}
djsollen@google.com6789a342013-02-01 16:18:09 +0000444#endif