| |
| /* |
| * 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 "SkBBHFactory.h" |
| #include "SkBitmapDevice.h" |
| #include "SkCanvas.h" |
| #include "SkChunkAlloc.h" |
| #include "SkPaintPriv.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" |
| |
| #if SK_SUPPORT_GPU |
| #include "GrContext.h" |
| #endif |
| |
| template <typename T> int SafeCount(const T* obj) { |
| return obj ? obj->count() : 0; |
| } |
| |
| #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() |
| : fAccelData(NULL) { |
| this->needsNewGenID(); |
| fPlayback = NULL; |
| fWidth = fHeight = 0; |
| } |
| |
| SkPicture::SkPicture(int width, int height, |
| const SkPictureRecord& record, |
| bool deepCopyOps) |
| : fWidth(width) |
| , fHeight(height) |
| , fAccelData(NULL) { |
| this->needsNewGenID(); |
| |
| SkPictInfo info; |
| this->createHeader(&info); |
| fPlayback = SkNEW_ARGS(SkPicturePlayback, (record, info, deepCopyOps)); |
| } |
| |
| SkPicture::SkPicture(const SkPicture& src) |
| : INHERITED() |
| , fAccelData(NULL) { |
| this->needsNewGenID(); |
| fWidth = src.fWidth; |
| fHeight = src.fHeight; |
| |
| if (src.fPlayback) { |
| fPlayback = SkNEW_ARGS(SkPicturePlayback, (*src.fPlayback)); |
| fUniqueID = src.uniqueID(); // need to call method to ensure != 0 |
| } else { |
| fPlayback = NULL; |
| } |
| } |
| |
| SkPicture::~SkPicture() { |
| SkDELETE(fPlayback); |
| SkSafeUnref(fAccelData); |
| } |
| |
| void SkPicture::swap(SkPicture& other) { |
| SkTSwap(fUniqueID, other.fUniqueID); |
| SkTSwap(fPlayback, other.fPlayback); |
| SkTSwap(fAccelData, other.fAccelData); |
| SkTSwap(fWidth, other.fWidth); |
| SkTSwap(fHeight, other.fHeight); |
| } |
| |
| SkPicture* SkPicture::clone() const { |
| SkPicture* clonedPicture = SkNEW(SkPicture); |
| this->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->needsNewGenID(); |
| clone->fWidth = fWidth; |
| clone->fHeight = fHeight; |
| 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) { |
| if (!copyInfo.initialized) { |
| int paintCount = SafeCount(fPlayback->fPaints); |
| |
| /* The alternative to doing this is to have a clone method on the paint and have it |
| * make the deep copy of its internal structures as needed. The holdup to doing |
| * that is at this point we would need to pass the SkBitmapHeap so that we don't |
| * unnecessarily flatten the pixels in a bitmap shader. |
| */ |
| copyInfo.paintData.setCount(paintCount); |
| |
| /* Use an SkBitmapHeap to avoid flattening bitmaps in shaders. If there already is |
| * one, use it. If this SkPicturePlayback was created from a stream, fBitmapHeap |
| * will be NULL, so create a new one. |
| */ |
| if (fPlayback->fBitmapHeap.get() == NULL) { |
| // FIXME: Put this on the stack inside SkPicture::clone. |
| SkBitmapHeap* heap = SkNEW(SkBitmapHeap); |
| copyInfo.controller.setBitmapStorage(heap); |
| heap->unref(); |
| } else { |
| copyInfo.controller.setBitmapStorage(fPlayback->fBitmapHeap); |
| } |
| |
| SkDEBUGCODE(int heapSize = SafeCount(fPlayback->fBitmapHeap.get());) |
| for (int i = 0; i < paintCount; i++) { |
| if (NeedsDeepCopy(fPlayback->fPaints->at(i))) { |
| copyInfo.paintData[i] = |
| SkFlatData::Create<SkPaint::FlatteningTraits>(©Info.controller, |
| fPlayback->fPaints->at(i), 0); |
| |
| } else { |
| // this is our sentinel, which we use in the unflatten loop |
| copyInfo.paintData[i] = NULL; |
| } |
| } |
| SkASSERT(SafeCount(fPlayback->fBitmapHeap.get()) == heapSize); |
| |
| // needed to create typeface playback |
| copyInfo.controller.setupPlaybacks(); |
| copyInfo.initialized = true; |
| } |
| |
| clone->fPlayback = SkNEW_ARGS(SkPicturePlayback, (*fPlayback, ©Info)); |
| clone->fUniqueID = this->uniqueID(); // need to call method to ensure != 0 |
| } else { |
| clone->fPlayback = NULL; |
| } |
| } |
| } |
| |
| SkPicture::AccelData::Domain SkPicture::AccelData::GenerateDomain() { |
| static int32_t gNextID = 0; |
| |
| int32_t id = sk_atomic_inc(&gNextID); |
| if (id >= 1 << (8 * sizeof(Domain))) { |
| SK_CRASH(); |
| } |
| |
| return static_cast<Domain>(id); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| const SkPicture::OperationList& SkPicture::OperationList::InvalidList() { |
| static OperationList gInvalid; |
| return gInvalid; |
| } |
| |
| const SkPicture::OperationList& SkPicture::EXPERIMENTAL_getActiveOps(const SkIRect& queryRect) const { |
| SkASSERT(NULL != fPlayback); |
| if (NULL != fPlayback) { |
| return fPlayback->getActiveOps(queryRect); |
| } |
| return OperationList::InvalidList(); |
| } |
| |
| size_t SkPicture::EXPERIMENTAL_curOpID() const { |
| if (NULL != fPlayback) { |
| return fPlayback->curOpID(); |
| } |
| return 0; |
| } |
| |
| void SkPicture::draw(SkCanvas* surface, SkDrawPictureCallback* callback) const { |
| SkASSERT(NULL != fPlayback); |
| if (NULL != fPlayback) { |
| fPlayback->draw(*surface, callback); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #include "SkStream.h" |
| |
| static const char kMagic[] = { 's', 'k', 'i', 'a', 'p', 'i', 'c', 't' }; |
| |
| bool SkPicture::IsValidPictInfo(const SkPictInfo& info) { |
| if (0 != memcmp(info.fMagic, kMagic, sizeof(kMagic))) { |
| return false; |
| } |
| |
| if (info.fVersion < MIN_PICTURE_VERSION || |
| info.fVersion > CURRENT_PICTURE_VERSION) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool SkPicture::InternalOnly_StreamIsSKP(SkStream* stream, SkPictInfo* pInfo) { |
| if (NULL == stream) { |
| return false; |
| } |
| |
| // Check magic bytes. |
| SkPictInfo info; |
| SkASSERT(sizeof(kMagic) == sizeof(info.fMagic)); |
| if (!stream->read(&info, sizeof(info)) || !IsValidPictInfo(info)) { |
| return false; |
| } |
| |
| if (pInfo != NULL) { |
| *pInfo = info; |
| } |
| return true; |
| } |
| |
| bool SkPicture::InternalOnly_BufferIsSKP(SkReadBuffer& buffer, SkPictInfo* pInfo) { |
| // Check magic bytes. |
| SkPictInfo info; |
| SkASSERT(sizeof(kMagic) == sizeof(info.fMagic)); |
| if (!buffer.readByteArray(&info, sizeof(info)) || !IsValidPictInfo(info)) { |
| return false; |
| } |
| |
| if (pInfo != NULL) { |
| *pInfo = info; |
| } |
| return true; |
| } |
| |
| SkPicture::SkPicture(SkPicturePlayback* playback, int width, int height) |
| : fPlayback(playback) |
| , fWidth(width) |
| , fHeight(height) |
| , fAccelData(NULL) { |
| this->needsNewGenID(); |
| } |
| |
| SkPicture* SkPicture::CreateFromStream(SkStream* stream, InstallPixelRefProc proc) { |
| SkPictInfo info; |
| |
| if (!InternalOnly_StreamIsSKP(stream, &info)) { |
| return NULL; |
| } |
| |
| // Check to see if there is a playback to recreate. |
| if (stream->readBool()) { |
| SkPicturePlayback* playback = SkPicturePlayback::CreateFromStream(stream, info, proc); |
| if (NULL == playback) { |
| return NULL; |
| } |
| |
| return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight)); |
| } |
| |
| return NULL; |
| } |
| |
| SkPicture* SkPicture::CreateFromBuffer(SkReadBuffer& buffer) { |
| SkPictInfo info; |
| |
| if (!InternalOnly_BufferIsSKP(buffer, &info)) { |
| return NULL; |
| } |
| |
| // Check to see if there is a playback to recreate. |
| if (buffer.readBool()) { |
| SkPicturePlayback* playback = SkPicturePlayback::CreateFromBuffer(buffer, info); |
| if (NULL == playback) { |
| return NULL; |
| } |
| |
| return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight)); |
| } |
| |
| return NULL; |
| } |
| |
| void SkPicture::createHeader(SkPictInfo* info) const { |
| // Copy magic bytes at the beginning of the header |
| SkASSERT(sizeof(kMagic) == 8); |
| SkASSERT(sizeof(kMagic) == sizeof(info->fMagic)); |
| memcpy(info->fMagic, kMagic, sizeof(kMagic)); |
| |
| // Set picture info after magic bytes in the header |
| info->fVersion = CURRENT_PICTURE_VERSION; |
| info->fWidth = fWidth; |
| info->fHeight = fHeight; |
| info->fFlags = SkPictInfo::kCrossProcess_Flag; |
| // TODO: remove this flag, since we're always float (now) |
| info->fFlags |= SkPictInfo::kScalarIsFloat_Flag; |
| |
| if (8 == sizeof(void*)) { |
| info->fFlags |= SkPictInfo::kPtrIs64Bit_Flag; |
| } |
| } |
| |
| void SkPicture::serialize(SkWStream* stream, EncodeBitmap encoder) const { |
| SkPicturePlayback* playback = fPlayback; |
| |
| SkPictInfo info; |
| this->createHeader(&info); |
| 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); |
| } |
| } |
| |
| void SkPicture::WriteTagSize(SkWriteBuffer& buffer, uint32_t tag, size_t size) { |
| buffer.writeUInt(tag); |
| buffer.writeUInt(SkToU32(size)); |
| } |
| |
| void SkPicture::WriteTagSize(SkWStream* stream, uint32_t tag, size_t size) { |
| stream->write32(tag); |
| stream->write32(SkToU32(size)); |
| } |
| |
| void SkPicture::flatten(SkWriteBuffer& buffer) const { |
| SkPicturePlayback* playback = fPlayback; |
| |
| SkPictInfo info; |
| this->createHeader(&info); |
| buffer.writeByteArray(&info, sizeof(info)); |
| if (playback) { |
| buffer.writeBool(true); |
| playback->flatten(buffer); |
| // delete playback if it is a local version (i.e. cons'd up just now) |
| if (playback != fPlayback) { |
| SkDELETE(playback); |
| } |
| } else { |
| buffer.writeBool(false); |
| } |
| } |
| |
| #if SK_SUPPORT_GPU |
| bool SkPicture::suitableForGpuRasterization(GrContext* context, const char **reason) const { |
| if (NULL == fPlayback) { |
| if (NULL != reason) { |
| *reason = "Missing playback object."; |
| } |
| return false; |
| } |
| |
| return fPlayback->suitableForGpuRasterization(context, reason); |
| } |
| #endif |
| |
| 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 |
| |
| static int32_t next_picture_generation_id() { |
| static int32_t gPictureGenerationID = 0; |
| // do a loop in case our global wraps around, as we never want to |
| // return a 0 |
| int32_t genID; |
| do { |
| genID = sk_atomic_inc(&gPictureGenerationID) + 1; |
| } while (SK_InvalidGenID == genID); |
| return genID; |
| } |
| |
| uint32_t SkPicture::uniqueID() const { |
| if (SK_InvalidGenID == fUniqueID) { |
| fUniqueID = next_picture_generation_id(); |
| } |
| return fUniqueID; |
| } |
