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android / platform / external / chromium_org / third_party / skia / src / 6789a3422ee196f80af979f0e42644e1e92af26b / . / core / SkPicture.cpp
blob: 3e464e0eb79f7bed03497978ff712299814d85b5 [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
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]9
10#include "SkPictureFlat.h"
11#include "SkPicturePlayback.h"
12#include "SkPictureRecord.h"
13
14#include "SkCanvas.h"
15#include "SkChunkAlloc.h"
reed@google.com118a6d02012-09-27 20:31:31 +0000[diff] [blame]16#include "SkDevice.h"
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]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
robertphillips@google.com86dbfc42012-06-21 20:25:03 +0000[diff] [blame]29SK_DEFINE_INST_COUNT(SkPicture)
30
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]31#define DUMP_BUFFER_SIZE 65536
32
33//#define ENABLE_TIME_DRAW // dumps milliseconds for each draw
34
35
36#ifdef SK_DEBUG
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]37// enable SK_DEBUG_TRACE to trace DrawType elements when
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]38// recorded and played back
39// #define SK_DEBUG_TRACE
40// enable SK_DEBUG_SIZE to see the size of picture components
41// #define SK_DEBUG_SIZE
42// enable SK_DEBUG_DUMP to see the contents of recorded elements
43// #define SK_DEBUG_DUMP
44// enable SK_DEBUG_VALIDATE to check internal structures for consistency
45// #define SK_DEBUG_VALIDATE
46#endif
47
48#if defined SK_DEBUG_TRACE || defined SK_DEBUG_DUMP
49const char* DrawTypeToString(DrawType drawType) {
50 switch (drawType) {
51 case UNUSED: SkDebugf("DrawType UNUSED\n"); SkASSERT(0); break;
52 case CLIP_PATH: return "CLIP_PATH";
53 case CLIP_REGION: return "CLIP_REGION";
54 case CLIP_RECT: return "CLIP_RECT";
55 case CONCAT: return "CONCAT";
56 case DRAW_BITMAP: return "DRAW_BITMAP";
57 case DRAW_BITMAP_MATRIX: return "DRAW_BITMAP_MATRIX";
58 case DRAW_BITMAP_RECT: return "DRAW_BITMAP_RECT";
59 case DRAW_PAINT: return "DRAW_PAINT";
60 case DRAW_PATH: return "DRAW_PATH";
61 case DRAW_PICTURE: return "DRAW_PICTURE";
62 case DRAW_POINTS: return "DRAW_POINTS";
63 case DRAW_POS_TEXT: return "DRAW_POS_TEXT";
64 case DRAW_POS_TEXT_H: return "DRAW_POS_TEXT_H";
65 case DRAW_RECT_GENERAL: return "DRAW_RECT_GENERAL";
66 case DRAW_RECT_SIMPLE: return "DRAW_RECT_SIMPLE";
67 case DRAW_SPRITE: return "DRAW_SPRITE";
68 case DRAW_TEXT: return "DRAW_TEXT";
69 case DRAW_TEXT_ON_PATH: return "DRAW_TEXT_ON_PATH";
70 case RESTORE: return "RESTORE";
71 case ROTATE: return "ROTATE";
72 case SAVE: return "SAVE";
73 case SAVE_LAYER: return "SAVE_LAYER";
74 case SCALE: return "SCALE";
75 case SKEW: return "SKEW";
76 case TRANSLATE: return "TRANSLATE";
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]77 default:
78 SkDebugf("DrawType error 0x%08x\n", drawType);
79 SkASSERT(0);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]80 break;
81 }
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]82 SkASSERT(0);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]83 return NULL;
84}
85#endif
86
87#ifdef SK_DEBUG_VALIDATE
88static void validateMatrix(const SkMatrix* matrix) {
89 SkScalar scaleX = matrix->getScaleX();
90 SkScalar scaleY = matrix->getScaleY();
91 SkScalar skewX = matrix->getSkewX();
92 SkScalar skewY = matrix->getSkewY();
93 SkScalar perspX = matrix->getPerspX();
94 SkScalar perspY = matrix->getPerspY();
95 if (scaleX != 0 && skewX != 0)
96 SkDebugf("scaleX != 0 && skewX != 0\n");
97 SkASSERT(scaleX == 0 || skewX == 0);
98 SkASSERT(scaleY == 0 || skewY == 0);
99 SkASSERT(perspX == 0);
100 SkASSERT(perspY == 0);
101}
102#endif
103
104
105///////////////////////////////////////////////////////////////////////////////
106
107SkPicture::SkPicture() {
108 fRecord = NULL;
109 fPlayback = NULL;
110 fWidth = fHeight = 0;
111}
112
113SkPicture::SkPicture(const SkPicture& src) : SkRefCnt() {
114 fWidth = src.fWidth;
115 fHeight = src.fHeight;
116 fRecord = NULL;
117
118 /* We want to copy the src's playback. However, if that hasn't been built
119 yet, we need to fake a call to endRecording() without actually calling
120 it (since it is destructive, and we don't want to change src).
121 */
122 if (src.fPlayback) {
123 fPlayback = SkNEW_ARGS(SkPicturePlayback, (*src.fPlayback));
124 } else if (src.fRecord) {
125 // here we do a fake src.endRecording()
126 fPlayback = SkNEW_ARGS(SkPicturePlayback, (*src.fRecord));
127 } else {
128 fPlayback = NULL;
129 }
130}
131
132SkPicture::~SkPicture() {
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]133 SkSafeUnref(fRecord);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]134 SkDELETE(fPlayback);
135}
136
137void SkPicture::swap(SkPicture& other) {
138 SkTSwap(fRecord, other.fRecord);
139 SkTSwap(fPlayback, other.fPlayback);
140 SkTSwap(fWidth, other.fWidth);
141 SkTSwap(fHeight, other.fHeight);
142}
143
djsollen@google.com3855f872012-08-29 18:52:07 +0000[diff] [blame]144SkPicture* SkPicture::clone() const {
145 SkPicture* clonedPicture = SkNEW(SkPicture);
146 clone(clonedPicture, 1);
147 return clonedPicture;
148}
149
150void SkPicture::clone(SkPicture* pictures, int count) const {
151 SkPictCopyInfo copyInfo;
152
153 for (int i = 0; i < count; i++) {
154 SkPicture* clone = &pictures[i];
155
156 clone->fWidth = fWidth;
157 clone->fHeight = fHeight;
158 clone->fRecord = NULL;
159
scroggo@google.coma0dd4332012-11-02 20:51:19 +0000[diff] [blame]160 if (NULL != clone->fRecord) {
161 clone->fRecord->unref();
162 clone->fRecord = NULL;
163 }
164 SkDELETE(clone->fPlayback);
165
djsollen@google.com3855f872012-08-29 18:52:07 +0000[diff] [blame]166 /* We want to copy the src's playback. However, if that hasn't been built
167 yet, we need to fake a call to endRecording() without actually calling
168 it (since it is destructive, and we don't want to change src).
169 */
170 if (fPlayback) {
171 clone->fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fPlayback, &copyInfo));
172 } else if (fRecord) {
173 // here we do a fake src.endRecording()
174 clone->fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fRecord, true));
175 } else {
176 clone->fPlayback = NULL;
177 }
178 }
179}
180
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]181///////////////////////////////////////////////////////////////////////////////
182
reed@android.comc4a55d72009-02-13 14:56:09 +0000[diff] [blame]183SkCanvas* SkPicture::beginRecording(int width, int height,
184 uint32_t recordingFlags) {
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]185 if (fPlayback) {
186 SkDELETE(fPlayback);
187 fPlayback = NULL;
188 }
189
190 if (NULL != fRecord) {
191 fRecord->unref();
192 fRecord = NULL;
193 }
194
reed@google.com118a6d02012-09-27 20:31:31 +0000[diff] [blame]195 SkBitmap bm;
196 bm.setConfig(SkBitmap::kNo_Config, width, height);
197 SkAutoTUnref<SkDevice> dev(SkNEW_ARGS(SkDevice, (bm)));
198
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]199 // Must be set before calling createBBoxHierarchy
200 fWidth = width;
201 fHeight = height;
202
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000[diff] [blame]203 if (recordingFlags & kOptimizeForClippedPlayback_RecordingFlag) {
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]204 SkBBoxHierarchy* tree = this->createBBoxHierarchy();
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000[diff] [blame]205 SkASSERT(NULL != tree);
reed@google.com118a6d02012-09-27 20:31:31 +0000[diff] [blame]206 fRecord = SkNEW_ARGS(SkBBoxHierarchyRecord, (recordingFlags, tree, dev));
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000[diff] [blame]207 tree->unref();
208 } else {
reed@google.com118a6d02012-09-27 20:31:31 +0000[diff] [blame]209 fRecord = SkNEW_ARGS(SkPictureRecord, (recordingFlags, dev));
rileya@google.com7fb3d2f2012-09-13 21:41:51 +0000[diff] [blame]210 }
reed@google.com118a6d02012-09-27 20:31:31 +0000[diff] [blame]211 fRecord->beginRecording();
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]212
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]213 return fRecord;
214}
215
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]216SkBBoxHierarchy* SkPicture::createBBoxHierarchy() const {
skia.committer@gmail.com8d230dd2012-11-02 02:01:24 +0000[diff] [blame]217 // These values were empirically determined to produce reasonable
junov@chromium.orgbb78c442012-11-01 17:10:32 +0000[diff] [blame]218 // performance in most cases.
219 static const int kRTreeMinChildren = 6;
220 static const int kRTreeMaxChildren = 11;
221
222 SkScalar aspectRatio = SkScalarDiv(SkIntToScalar(fWidth),
223 SkIntToScalar(fHeight));
224 return SkRTree::Create(kRTreeMinChildren, kRTreeMaxChildren,
225 aspectRatio);
226}
227
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]228SkCanvas* SkPicture::getRecordingCanvas() const {
229 // will be null if we are not recording
230 return fRecord;
231}
232
233void SkPicture::endRecording() {
234 if (NULL == fPlayback) {
235 if (NULL != fRecord) {
junov@chromium.org9aa18db2012-07-12 17:47:34 +0000[diff] [blame]236 fRecord->endRecording();
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]237 fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fRecord));
238 fRecord->unref();
239 fRecord = NULL;
240 }
241 }
242 SkASSERT(NULL == fRecord);
243}
244
245void SkPicture::draw(SkCanvas* surface) {
246 this->endRecording();
247 if (fPlayback) {
248 fPlayback->draw(*surface);
249 }
250}
251
252///////////////////////////////////////////////////////////////////////////////
253
254#include "SkStream.h"
255
scroggo@google.com6ff73172012-10-04 21:46:08 +0000[diff] [blame]256SkPicture::SkPicture(SkStream* stream, bool* success, SkSerializationHelpers::DecodeBitmap decoder) : SkRefCnt() {
borenet@google.com30dda202012-09-17 18:26:06 +0000[diff] [blame]257 if (success) {
258 *success = false;
259 }
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]260 fRecord = NULL;
261 fPlayback = NULL;
reed@google.com4bca7f62012-06-22 15:38:39 +0000[diff] [blame]262 fWidth = fHeight = 0;
263
264 SkPictInfo info;
265
266 if (!stream->read(&info, sizeof(info))) {
267 return;
268 }
269 if (PICTURE_VERSION != info.fVersion) {
270 return;
271 }
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]272
273 if (stream->readBool()) {
reed@google.com4bca7f62012-06-22 15:38:39 +0000[diff] [blame]274 bool isValid = false;
scroggo@google.com6ff73172012-10-04 21:46:08 +0000[diff] [blame]275 fPlayback = SkNEW_ARGS(SkPicturePlayback, (stream, info, &isValid, decoder));
reed@google.com4bca7f62012-06-22 15:38:39 +0000[diff] [blame]276 if (!isValid) {
277 SkDELETE(fPlayback);
278 fPlayback = NULL;
279 return;
280 }
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]281 }
reed@google.com4bca7f62012-06-22 15:38:39 +0000[diff] [blame]282
283 // do this at the end, so that they will be zero if we hit an error.
284 fWidth = info.fWidth;
285 fHeight = info.fHeight;
borenet@google.com30dda202012-09-17 18:26:06 +0000[diff] [blame]286 if (success) {
287 *success = true;
288 }
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]289}
290
scroggo@google.com6ff73172012-10-04 21:46:08 +0000[diff] [blame]291void SkPicture::serialize(SkWStream* stream, SkSerializationHelpers::EncodeBitmap encoder) const {
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]292 SkPicturePlayback* playback = fPlayback;
reed@google.com91911482011-02-07 15:30:46 +0000[diff] [blame]293
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]294 if (NULL == playback && fRecord) {
295 playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord));
296 }
297
reed@google.com4bca7f62012-06-22 15:38:39 +0000[diff] [blame]298 SkPictInfo info;
299
300 info.fVersion = PICTURE_VERSION;
301 info.fWidth = fWidth;
302 info.fHeight = fHeight;
303 info.fFlags = SkPictInfo::kCrossProcess_Flag;
304#ifdef SK_SCALAR_IS_FLOAT
305 info.fFlags |= SkPictInfo::kScalarIsFloat_Flag;
306#endif
307 if (8 == sizeof(void*)) {
308 info.fFlags |= SkPictInfo::kPtrIs64Bit_Flag;
309 }
310
311 stream->write(&info, sizeof(info));
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]312 if (playback) {
313 stream->writeBool(true);
scroggo@google.com6ff73172012-10-04 21:46:08 +0000[diff] [blame]314 playback->serialize(stream, encoder);
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]315 // delete playback if it is a local version (i.e. cons'd up just now)
316 if (playback != fPlayback) {
317 SkDELETE(playback);
318 }
319 } else {
320 stream->writeBool(false);
321 }
322}
323
djsollen@google.com6789a342013-02-01 16:18:09 +0000[diff] [blame^]324#ifdef SK_BUILD_FOR_ANDROID
reed@android.combcd4d5a2008-12-17 15:59:43 +0000[diff] [blame]325void SkPicture::abortPlayback() {
326 if (NULL == fPlayback) {
327 return;
328 }
329 fPlayback->abort();
330}
djsollen@google.com6789a342013-02-01 16:18:09 +0000[diff] [blame^]331#endif