| |
| /* |
| * Copyright 2007 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #include "SkPictureFlat.h" |
| #include "SkPicturePlayback.h" |
| #include "SkPictureRecord.h" |
| |
| #include "SkBitmapDevice.h" |
| #include "SkCanvas.h" |
| #include "SkChunkAlloc.h" |
| #include "SkPicture.h" |
| #include "SkRegion.h" |
| #include "SkStream.h" |
| #include "SkTDArray.h" |
| #include "SkTSearch.h" |
| #include "SkTime.h" |
| |
| #include "SkReader32.h" |
| #include "SkWriter32.h" |
| #include "SkRTree.h" |
| #include "SkBBoxHierarchyRecord.h" |
| |
| SK_DEFINE_INST_COUNT(SkPicture) |
| |
| #define DUMP_BUFFER_SIZE 65536 |
| |
| //#define ENABLE_TIME_DRAW // dumps milliseconds for each draw |
| |
| |
| #ifdef SK_DEBUG |
| // enable SK_DEBUG_TRACE to trace DrawType elements when |
| // recorded and played back |
| // #define SK_DEBUG_TRACE |
| // enable SK_DEBUG_SIZE to see the size of picture components |
| // #define SK_DEBUG_SIZE |
| // enable SK_DEBUG_DUMP to see the contents of recorded elements |
| // #define SK_DEBUG_DUMP |
| // enable SK_DEBUG_VALIDATE to check internal structures for consistency |
| // #define SK_DEBUG_VALIDATE |
| #endif |
| |
| #if defined SK_DEBUG_TRACE || defined SK_DEBUG_DUMP |
| const char* DrawTypeToString(DrawType drawType) { |
| switch (drawType) { |
| case UNUSED: SkDebugf("DrawType UNUSED\n"); SkASSERT(0); break; |
| case CLIP_PATH: return "CLIP_PATH"; |
| case CLIP_REGION: return "CLIP_REGION"; |
| case CLIP_RECT: return "CLIP_RECT"; |
| case CLIP_RRECT: return "CLIP_RRECT"; |
| case CONCAT: return "CONCAT"; |
| case DRAW_BITMAP: return "DRAW_BITMAP"; |
| case DRAW_BITMAP_MATRIX: return "DRAW_BITMAP_MATRIX"; |
| case DRAW_BITMAP_NINE: return "DRAW_BITMAP_NINE"; |
| case DRAW_BITMAP_RECT_TO_RECT: return "DRAW_BITMAP_RECT_TO_RECT"; |
| case DRAW_CLEAR: return "DRAW_CLEAR"; |
| case DRAW_DATA: return "DRAW_DATA"; |
| case DRAW_OVAL: return "DRAW_OVAL"; |
| case DRAW_PAINT: return "DRAW_PAINT"; |
| case DRAW_PATH: return "DRAW_PATH"; |
| case DRAW_PICTURE: return "DRAW_PICTURE"; |
| case DRAW_POINTS: return "DRAW_POINTS"; |
| case DRAW_POS_TEXT: return "DRAW_POS_TEXT"; |
| case DRAW_POS_TEXT_TOP_BOTTOM: return "DRAW_POS_TEXT_TOP_BOTTOM"; |
| case DRAW_POS_TEXT_H: return "DRAW_POS_TEXT_H"; |
| case DRAW_POS_TEXT_H_TOP_BOTTOM: return "DRAW_POS_TEXT_H_TOP_BOTTOM"; |
| case DRAW_RECT: return "DRAW_RECT"; |
| case DRAW_RRECT: return "DRAW_RRECT"; |
| case DRAW_SPRITE: return "DRAW_SPRITE"; |
| case DRAW_TEXT: return "DRAW_TEXT"; |
| case DRAW_TEXT_ON_PATH: return "DRAW_TEXT_ON_PATH"; |
| case DRAW_TEXT_TOP_BOTTOM: return "DRAW_TEXT_TOP_BOTTOM"; |
| case DRAW_VERTICES: return "DRAW_VERTICES"; |
| case RESTORE: return "RESTORE"; |
| case ROTATE: return "ROTATE"; |
| case SAVE: return "SAVE"; |
| case SAVE_LAYER: return "SAVE_LAYER"; |
| case SCALE: return "SCALE"; |
| case SET_MATRIX: return "SET_MATRIX"; |
| case SKEW: return "SKEW"; |
| case TRANSLATE: return "TRANSLATE"; |
| case NOOP: return "NOOP"; |
| default: |
| SkDebugf("DrawType error 0x%08x\n", drawType); |
| SkASSERT(0); |
| break; |
| } |
| SkASSERT(0); |
| return NULL; |
| } |
| #endif |
| |
| #ifdef SK_DEBUG_VALIDATE |
| static void validateMatrix(const SkMatrix* matrix) { |
| SkScalar scaleX = matrix->getScaleX(); |
| SkScalar scaleY = matrix->getScaleY(); |
| SkScalar skewX = matrix->getSkewX(); |
| SkScalar skewY = matrix->getSkewY(); |
| SkScalar perspX = matrix->getPerspX(); |
| SkScalar perspY = matrix->getPerspY(); |
| if (scaleX != 0 && skewX != 0) |
| SkDebugf("scaleX != 0 && skewX != 0\n"); |
| SkASSERT(scaleX == 0 || skewX == 0); |
| SkASSERT(scaleY == 0 || skewY == 0); |
| SkASSERT(perspX == 0); |
| SkASSERT(perspY == 0); |
| } |
| #endif |
| |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkPicture::SkPicture() { |
| fRecord = NULL; |
| fPlayback = NULL; |
| fWidth = fHeight = 0; |
| } |
| |
| SkPicture::SkPicture(const SkPicture& src) : INHERITED() { |
| fWidth = src.fWidth; |
| fHeight = src.fHeight; |
| fRecord = NULL; |
| |
| /* We want to copy the src's playback. However, if that hasn't been built |
| yet, we need to fake a call to endRecording() without actually calling |
| it (since it is destructive, and we don't want to change src). |
| */ |
| if (src.fPlayback) { |
| fPlayback = SkNEW_ARGS(SkPicturePlayback, (*src.fPlayback)); |
| } else if (src.fRecord) { |
| // here we do a fake src.endRecording() |
| fPlayback = SkNEW_ARGS(SkPicturePlayback, (*src.fRecord)); |
| } else { |
| fPlayback = NULL; |
| } |
| } |
| |
| SkPicture::~SkPicture() { |
| SkSafeUnref(fRecord); |
| SkDELETE(fPlayback); |
| } |
| |
| void SkPicture::swap(SkPicture& other) { |
| SkTSwap(fRecord, other.fRecord); |
| SkTSwap(fPlayback, other.fPlayback); |
| SkTSwap(fWidth, other.fWidth); |
| SkTSwap(fHeight, other.fHeight); |
| } |
| |
| SkPicture* SkPicture::clone() const { |
| SkPicture* clonedPicture = SkNEW(SkPicture); |
| clone(clonedPicture, 1); |
| return clonedPicture; |
| } |
| |
| void SkPicture::clone(SkPicture* pictures, int count) const { |
| SkPictCopyInfo copyInfo; |
| |
| for (int i = 0; i < count; i++) { |
| SkPicture* clone = &pictures[i]; |
| |
| clone->fWidth = fWidth; |
| clone->fHeight = fHeight; |
| clone->fRecord = NULL; |
| |
| if (NULL != clone->fRecord) { |
| clone->fRecord->unref(); |
| clone->fRecord = NULL; |
| } |
| SkDELETE(clone->fPlayback); |
| |
| /* We want to copy the src's playback. However, if that hasn't been built |
| yet, we need to fake a call to endRecording() without actually calling |
| it (since it is destructive, and we don't want to change src). |
| */ |
| if (fPlayback) { |
| clone->fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fPlayback, ©Info)); |
| } else if (fRecord) { |
| // here we do a fake src.endRecording() |
| clone->fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fRecord, true)); |
| } else { |
| clone->fPlayback = NULL; |
| } |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkCanvas* SkPicture::beginRecording(int width, int height, |
| uint32_t recordingFlags) { |
| if (fPlayback) { |
| SkDELETE(fPlayback); |
| fPlayback = NULL; |
| } |
| |
| if (NULL != fRecord) { |
| fRecord->unref(); |
| fRecord = NULL; |
| } |
| |
| SkBitmap bm; |
| bm.setConfig(SkBitmap::kNo_Config, width, height); |
| SkAutoTUnref<SkBaseDevice> dev(SkNEW_ARGS(SkBitmapDevice, (bm))); |
| |
| // Must be set before calling createBBoxHierarchy |
| fWidth = width; |
| fHeight = height; |
| |
| if (recordingFlags & kOptimizeForClippedPlayback_RecordingFlag) { |
| SkBBoxHierarchy* tree = this->createBBoxHierarchy(); |
| SkASSERT(NULL != tree); |
| fRecord = SkNEW_ARGS(SkBBoxHierarchyRecord, (recordingFlags, tree, dev)); |
| tree->unref(); |
| } else { |
| fRecord = SkNEW_ARGS(SkPictureRecord, (recordingFlags, dev)); |
| } |
| fRecord->beginRecording(); |
| |
| return fRecord; |
| } |
| |
| SkBBoxHierarchy* SkPicture::createBBoxHierarchy() const { |
| // These values were empirically determined to produce reasonable |
| // performance in most cases. |
| static const int kRTreeMinChildren = 6; |
| static const int kRTreeMaxChildren = 11; |
| |
| SkScalar aspectRatio = SkScalarDiv(SkIntToScalar(fWidth), |
| SkIntToScalar(fHeight)); |
| bool sortDraws = false; // Do not sort draw calls when bulk loading. |
| |
| return SkRTree::Create(kRTreeMinChildren, kRTreeMaxChildren, |
| aspectRatio, sortDraws); |
| } |
| |
| SkCanvas* SkPicture::getRecordingCanvas() const { |
| // will be null if we are not recording |
| return fRecord; |
| } |
| |
| void SkPicture::endRecording() { |
| if (NULL == fPlayback) { |
| if (NULL != fRecord) { |
| fRecord->endRecording(); |
| fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fRecord)); |
| fRecord->unref(); |
| fRecord = NULL; |
| } |
| } |
| SkASSERT(NULL == fRecord); |
| } |
| |
| void SkPicture::draw(SkCanvas* surface, SkDrawPictureCallback* callback) { |
| this->endRecording(); |
| if (fPlayback) { |
| fPlayback->draw(*surface, callback); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #include "SkStream.h" |
| |
| static const char kMagic[] = { 's', 'k', 'i', 'a', 'p', 'i', 'c', 't' }; |
| |
| bool SkPicture::StreamIsSKP(SkStream* stream, SkPictInfo* pInfo) { |
| if (NULL == stream) { |
| return false; |
| } |
| |
| // Check magic bytes. |
| char magic[sizeof(kMagic)]; |
| stream->read(magic, sizeof(kMagic)); |
| if (0 != memcmp(magic, kMagic, sizeof(kMagic))) { |
| return false; |
| } |
| |
| SkPictInfo info; |
| if (!stream->read(&info, sizeof(SkPictInfo))) { |
| return false; |
| } |
| |
| if (PICTURE_VERSION != info.fVersion |
| #ifndef DELETE_THIS_CODE_WHEN_SKPS_ARE_REBUILT_AT_V16_AND_ALL_OTHER_INSTANCES_TOO |
| // V16 is backwards compatible with V15 |
| && PRIOR_PICTURE_VERSION != info.fVersion // TODO: remove when .skps regenerated |
| #endif |
| ) { |
| return false; |
| } |
| |
| if (pInfo != NULL) { |
| *pInfo = info; |
| } |
| return true; |
| } |
| |
| SkPicture::SkPicture(SkPicturePlayback* playback, int width, int height) |
| : fPlayback(playback) |
| , fRecord(NULL) |
| , fWidth(width) |
| , fHeight(height) {} |
| |
| SkPicture* SkPicture::CreateFromStream(SkStream* stream, InstallPixelRefProc proc) { |
| SkPictInfo info; |
| |
| if (!StreamIsSKP(stream, &info)) { |
| return NULL; |
| } |
| |
| SkPicturePlayback* playback; |
| // Check to see if there is a playback to recreate. |
| if (stream->readBool()) { |
| playback = SkPicturePlayback::CreateFromStream(stream, info, proc); |
| if (NULL == playback) { |
| return NULL; |
| } |
| } else { |
| playback = NULL; |
| } |
| |
| return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight)); |
| } |
| |
| void SkPicture::serialize(SkWStream* stream, EncodeBitmap encoder) const { |
| SkPicturePlayback* playback = fPlayback; |
| |
| if (NULL == playback && fRecord) { |
| playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord)); |
| } |
| |
| SkPictInfo info; |
| |
| info.fVersion = PICTURE_VERSION; |
| info.fWidth = fWidth; |
| info.fHeight = fHeight; |
| info.fFlags = SkPictInfo::kCrossProcess_Flag; |
| #ifdef SK_SCALAR_IS_FLOAT |
| info.fFlags |= SkPictInfo::kScalarIsFloat_Flag; |
| #endif |
| if (8 == sizeof(void*)) { |
| info.fFlags |= SkPictInfo::kPtrIs64Bit_Flag; |
| } |
| |
| // Write 8 magic bytes to ID this file format. |
| SkASSERT(sizeof(kMagic) == 8); |
| stream->write(kMagic, sizeof(kMagic)); |
| |
| stream->write(&info, sizeof(info)); |
| if (playback) { |
| stream->writeBool(true); |
| playback->serialize(stream, encoder); |
| // delete playback if it is a local version (i.e. cons'd up just now) |
| if (playback != fPlayback) { |
| SkDELETE(playback); |
| } |
| } else { |
| stream->writeBool(false); |
| } |
| } |
| |
| bool SkPicture::willPlayBackBitmaps() const { |
| if (!fPlayback) return false; |
| return fPlayback->containsBitmaps(); |
| } |
| |
| #ifdef SK_BUILD_FOR_ANDROID |
| void SkPicture::abortPlayback() { |
| if (NULL == fPlayback) { |
| return; |
| } |
| fPlayback->abort(); |
| } |
| #endif |