| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkPictureRecord.h" |
| #include "SkBBoxHierarchy.h" |
| #include "SkDevice.h" |
| #include "SkPatchUtils.h" |
| #include "SkPictureStateTree.h" |
| #include "SkPixelRef.h" |
| #include "SkRRect.h" |
| #include "SkTSearch.h" |
| |
| #define HEAP_BLOCK_SIZE 4096 |
| |
| // If SK_RECORD_LITERAL_PICTURES is defined, record our inputs as literally as possible. |
| // Otherwise, we can be clever and record faster equivalents. kBeClever is normally true. |
| static const bool kBeClever = |
| #ifdef SK_RECORD_LITERAL_PICTURES |
| false; |
| #else |
| true; |
| #endif |
| |
| enum { |
| // just need a value that save or getSaveCount would never return |
| kNoInitialSave = -1, |
| }; |
| |
| // A lot of basic types get stored as a uint32_t: bools, ints, paint indices, etc. |
| static int const kUInt32Size = 4; |
| |
| static const uint32_t kSaveSize = kUInt32Size; |
| static const uint32_t kSaveLayerNoBoundsSize = 4 * kUInt32Size; |
| static const uint32_t kSaveLayerWithBoundsSize = 4 * kUInt32Size + sizeof(SkRect); |
| |
| SkPictureRecord::SkPictureRecord(const SkISize& dimensions, uint32_t flags) |
| : INHERITED(dimensions.width(), dimensions.height()) |
| , fBoundingHierarchy(NULL) |
| , fStateTree(NULL) |
| , fFlattenableHeap(HEAP_BLOCK_SIZE) |
| , fPaints(&fFlattenableHeap) |
| , fRecordFlags(flags) |
| , fOptsEnabled(kBeClever) { |
| |
| fBitmapHeap = SkNEW(SkBitmapHeap); |
| fFlattenableHeap.setBitmapStorage(fBitmapHeap); |
| |
| fFirstSavedLayerIndex = kNoSavedLayerIndex; |
| fInitialSaveCount = kNoInitialSave; |
| } |
| |
| SkPictureRecord::~SkPictureRecord() { |
| SkSafeUnref(fBitmapHeap); |
| SkSafeUnref(fBoundingHierarchy); |
| SkSafeUnref(fStateTree); |
| fFlattenableHeap.setBitmapStorage(NULL); |
| fPictureRefs.unrefAll(); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| // Return the offset of the paint inside a given op's byte stream. A zero |
| // return value means there is no paint (and you really shouldn't be calling |
| // this method) |
| static inline size_t getPaintOffset(DrawType op, size_t opSize) { |
| // These offsets are where the paint would be if the op size doesn't overflow |
| static const uint8_t gPaintOffsets[] = { |
| 0, // UNUSED - no paint |
| 0, // CLIP_PATH - no paint |
| 0, // CLIP_REGION - no paint |
| 0, // CLIP_RECT - no paint |
| 0, // CLIP_RRECT - no paint |
| 0, // CONCAT - no paint |
| 1, // DRAW_BITMAP - right after op code |
| 1, // DRAW_BITMAP_MATRIX - right after op code |
| 1, // DRAW_BITMAP_NINE - right after op code |
| 1, // DRAW_BITMAP_RECT_TO_RECT - right after op code |
| 0, // DRAW_CLEAR - no paint |
| 0, // DRAW_DATA - no paint |
| 1, // DRAW_OVAL - right after op code |
| 1, // DRAW_PAINT - right after op code |
| 1, // DRAW_PATH - right after op code |
| 0, // DRAW_PICTURE - no paint |
| 1, // DRAW_POINTS - right after op code |
| 1, // DRAW_POS_TEXT - right after op code |
| 1, // DRAW_POS_TEXT_TOP_BOTTOM - right after op code |
| 1, // DRAW_POS_TEXT_H - right after op code |
| 1, // DRAW_POS_TEXT_H_TOP_BOTTOM - right after op code |
| 1, // DRAW_RECT - right after op code |
| 1, // DRAW_RRECT - right after op code |
| 1, // DRAW_SPRITE - right after op code |
| 1, // DRAW_TEXT - right after op code |
| 1, // DRAW_TEXT_ON_PATH - right after op code |
| 1, // DRAW_TEXT_TOP_BOTTOM - right after op code |
| 1, // DRAW_VERTICES - right after op code |
| 0, // RESTORE - no paint |
| 0, // ROTATE - no paint |
| 0, // SAVE - no paint |
| 0, // SAVE_LAYER - see below - this paint's location varies |
| 0, // SCALE - no paint |
| 0, // SET_MATRIX - no paint |
| 0, // SKEW - no paint |
| 0, // TRANSLATE - no paint |
| 0, // NOOP - no paint |
| 0, // BEGIN_GROUP - no paint |
| 0, // COMMENT - no paint |
| 0, // END_GROUP - no paint |
| 1, // DRAWDRRECT - right after op code |
| 0, // PUSH_CULL - no paint |
| 0, // POP_CULL - no paint |
| 1, // DRAW_PATCH - right after op code |
| 1, // DRAW_PICTURE_MATRIX_PAINT - right after op code |
| }; |
| |
| SK_COMPILE_ASSERT(sizeof(gPaintOffsets) == LAST_DRAWTYPE_ENUM + 1, |
| need_to_be_in_sync); |
| SkASSERT((unsigned)op <= (unsigned)LAST_DRAWTYPE_ENUM); |
| |
| int overflow = 0; |
| if (0 != (opSize & ~MASK_24) || opSize == MASK_24) { |
| // This op's size overflows so an extra uint32_t will be written |
| // after the op code |
| overflow = sizeof(uint32_t); |
| } |
| |
| if (SAVE_LAYER == op) { |
| static const uint32_t kSaveLayerNoBoundsPaintOffset = 2 * kUInt32Size; |
| static const uint32_t kSaveLayerWithBoundsPaintOffset = 2 * kUInt32Size + sizeof(SkRect); |
| |
| if (kSaveLayerNoBoundsSize == opSize) { |
| return kSaveLayerNoBoundsPaintOffset + overflow; |
| } else { |
| SkASSERT(kSaveLayerWithBoundsSize == opSize); |
| return kSaveLayerWithBoundsPaintOffset + overflow; |
| } |
| } |
| |
| SkASSERT(0 != gPaintOffsets[op]); // really shouldn't be calling this method |
| return gPaintOffsets[op] * sizeof(uint32_t) + overflow; |
| } |
| |
| void SkPictureRecord::willSave() { |
| // record the offset to us, making it non-positive to distinguish a save |
| // from a clip entry. |
| fRestoreOffsetStack.push(-(int32_t)fWriter.bytesWritten()); |
| this->recordSave(); |
| |
| this->INHERITED::willSave(); |
| } |
| |
| void SkPictureRecord::recordSave() { |
| fContentInfo.onSave(); |
| |
| // op only |
| size_t size = kSaveSize; |
| size_t initialOffset = this->addDraw(SAVE, &size); |
| |
| this->validate(initialOffset, size); |
| } |
| |
| SkCanvas::SaveLayerStrategy SkPictureRecord::willSaveLayer(const SkRect* bounds, |
| const SkPaint* paint, SaveFlags flags) { |
| // record the offset to us, making it non-positive to distinguish a save |
| // from a clip entry. |
| fRestoreOffsetStack.push(-(int32_t)fWriter.bytesWritten()); |
| this->recordSaveLayer(bounds, paint, flags); |
| if (kNoSavedLayerIndex == fFirstSavedLayerIndex) { |
| fFirstSavedLayerIndex = fRestoreOffsetStack.count(); |
| } |
| |
| this->INHERITED::willSaveLayer(bounds, paint, flags); |
| /* No need for a (potentially very big) layer which we don't actually need |
| at this time (and may not be able to afford since during record our |
| clip starts out the size of the picture, which is often much larger |
| than the size of the actual device we'll use during playback). |
| */ |
| return kNoLayer_SaveLayerStrategy; |
| } |
| |
| void SkPictureRecord::recordSaveLayer(const SkRect* bounds, const SkPaint* paint, |
| SaveFlags flags) { |
| fContentInfo.onSaveLayer(); |
| |
| // op + bool for 'bounds' |
| size_t size = 2 * kUInt32Size; |
| if (NULL != bounds) { |
| size += sizeof(*bounds); // + rect |
| } |
| // + paint index + flags |
| size += 2 * kUInt32Size; |
| |
| SkASSERT(kSaveLayerNoBoundsSize == size || kSaveLayerWithBoundsSize == size); |
| |
| size_t initialOffset = this->addDraw(SAVE_LAYER, &size); |
| this->addRectPtr(bounds); |
| SkASSERT(initialOffset+getPaintOffset(SAVE_LAYER, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addInt(flags); |
| |
| this->validate(initialOffset, size); |
| } |
| |
| bool SkPictureRecord::isDrawingToLayer() const { |
| return fFirstSavedLayerIndex != kNoSavedLayerIndex; |
| } |
| |
| /* |
| * Read the op code from 'offset' in 'writer'. |
| */ |
| #ifdef SK_DEBUG |
| static DrawType peek_op(SkWriter32* writer, size_t offset) { |
| return (DrawType)(writer->readTAt<uint32_t>(offset) >> 24); |
| } |
| #endif |
| |
| /* |
| * Read the op code from 'offset' in 'writer' and extract the size too. |
| */ |
| static DrawType peek_op_and_size(SkWriter32* writer, size_t offset, uint32_t* size) { |
| uint32_t peek = writer->readTAt<uint32_t>(offset); |
| |
| uint32_t op; |
| UNPACK_8_24(peek, op, *size); |
| if (MASK_24 == *size) { |
| // size required its own slot right after the op code |
| *size = writer->readTAt<uint32_t>(offset + kUInt32Size); |
| } |
| return (DrawType) op; |
| } |
| |
| // Is the supplied paint simply a color? |
| static bool is_simple(const SkPaint& p) { |
| intptr_t orAccum = (intptr_t)p.getPathEffect() | |
| (intptr_t)p.getShader() | |
| (intptr_t)p.getXfermode() | |
| (intptr_t)p.getMaskFilter() | |
| (intptr_t)p.getColorFilter() | |
| (intptr_t)p.getRasterizer() | |
| (intptr_t)p.getLooper() | |
| (intptr_t)p.getImageFilter(); |
| return 0 == orAccum; |
| } |
| |
| // CommandInfos are fed to the 'match' method and filled in with command |
| // information. |
| struct CommandInfo { |
| DrawType fActualOp; |
| uint32_t fOffset; |
| uint32_t fSize; |
| }; |
| |
| /* |
| * Attempt to match the provided pattern of commands starting at 'offset' |
| * in the byte stream and stopping at the end of the stream. Upon success, |
| * return true with all the pattern information filled out in the result |
| * array (i.e., actual ops, offsets and sizes). |
| * Note this method skips any NOOPs seen in the stream |
| */ |
| static bool match(SkWriter32* writer, uint32_t offset, |
| int* pattern, CommandInfo* result, int numCommands) { |
| SkASSERT(offset < writer->bytesWritten()); |
| |
| uint32_t curOffset = offset; |
| uint32_t curSize = 0; |
| int numMatched; |
| for (numMatched = 0; numMatched < numCommands && curOffset < writer->bytesWritten(); ++numMatched) { |
| DrawType op = peek_op_and_size(writer, curOffset, &curSize); |
| while (NOOP == op) { |
| curOffset += curSize; |
| if (curOffset >= writer->bytesWritten()) { |
| return false; |
| } |
| op = peek_op_and_size(writer, curOffset, &curSize); |
| } |
| |
| if (kDRAW_BITMAP_FLAVOR == pattern[numMatched]) { |
| if (DRAW_BITMAP != op && DRAW_BITMAP_MATRIX != op && |
| DRAW_BITMAP_NINE != op && DRAW_BITMAP_RECT_TO_RECT != op) { |
| return false; |
| } |
| } else if (op != pattern[numMatched]) { |
| return false; |
| } |
| |
| result[numMatched].fActualOp = op; |
| result[numMatched].fOffset = curOffset; |
| result[numMatched].fSize = curSize; |
| |
| curOffset += curSize; |
| } |
| |
| if (numMatched != numCommands) { |
| return false; |
| } |
| |
| if (curOffset < writer->bytesWritten()) { |
| // Something else between the last command and the end of the stream |
| return false; |
| } |
| |
| return true; |
| } |
| |
| // temporarily here to make code review easier |
| static bool merge_savelayer_paint_into_drawbitmp(SkWriter32* writer, |
| SkPaintDictionary* paintDict, |
| const CommandInfo& saveLayerInfo, |
| const CommandInfo& dbmInfo); |
| |
| /* |
| * Restore has just been called (but not recorded), look back at the |
| * matching save* and see if we are in the configuration: |
| * SAVE_LAYER |
| * DRAW_BITMAP|DRAW_BITMAP_MATRIX|DRAW_BITMAP_NINE|DRAW_BITMAP_RECT_TO_RECT |
| * RESTORE |
| * where the saveLayer's color can be moved into the drawBitmap*'s paint |
| */ |
| static bool remove_save_layer1(SkWriter32* writer, int32_t offset, |
| SkPaintDictionary* paintDict) { |
| // back up to the save block |
| // TODO: add a stack to track save*/restore offsets rather than searching backwards |
| while (offset > 0) { |
| offset = writer->readTAt<uint32_t>(offset); |
| } |
| |
| int pattern[] = { SAVE_LAYER, kDRAW_BITMAP_FLAVOR, /* RESTORE */ }; |
| CommandInfo result[SK_ARRAY_COUNT(pattern)]; |
| |
| if (!match(writer, -offset, pattern, result, SK_ARRAY_COUNT(pattern))) { |
| return false; |
| } |
| |
| if (kSaveLayerWithBoundsSize == result[0].fSize) { |
| // The saveLayer's bound can offset where the dbm is drawn |
| return false; |
| } |
| |
| return merge_savelayer_paint_into_drawbitmp(writer, paintDict, |
| result[0], result[1]); |
| } |
| |
| /* |
| * Convert the command code located at 'offset' to a NOOP. Leave the size |
| * field alone so the NOOP can be skipped later. |
| */ |
| static void convert_command_to_noop(SkWriter32* writer, uint32_t offset) { |
| uint32_t command = writer->readTAt<uint32_t>(offset); |
| writer->overwriteTAt(offset, (command & MASK_24) | (NOOP << 24)); |
| } |
| |
| /* |
| * Attempt to merge the saveLayer's paint into the drawBitmap*'s paint. |
| * Return true on success; false otherwise. |
| */ |
| static bool merge_savelayer_paint_into_drawbitmp(SkWriter32* writer, |
| SkPaintDictionary* paintDict, |
| const CommandInfo& saveLayerInfo, |
| const CommandInfo& dbmInfo) { |
| SkASSERT(SAVE_LAYER == saveLayerInfo.fActualOp); |
| SkASSERT(DRAW_BITMAP == dbmInfo.fActualOp || |
| DRAW_BITMAP_MATRIX == dbmInfo.fActualOp || |
| DRAW_BITMAP_NINE == dbmInfo.fActualOp || |
| DRAW_BITMAP_RECT_TO_RECT == dbmInfo.fActualOp); |
| |
| size_t dbmPaintOffset = getPaintOffset(dbmInfo.fActualOp, dbmInfo.fSize); |
| size_t slPaintOffset = getPaintOffset(SAVE_LAYER, saveLayerInfo.fSize); |
| |
| // we have a match, now we need to get the paints involved |
| uint32_t dbmPaintId = writer->readTAt<uint32_t>(dbmInfo.fOffset + dbmPaintOffset); |
| uint32_t saveLayerPaintId = writer->readTAt<uint32_t>(saveLayerInfo.fOffset + slPaintOffset); |
| |
| if (0 == saveLayerPaintId) { |
| // In this case the saveLayer/restore isn't needed at all - just kill the saveLayer |
| // and signal the caller (by returning true) to not add the RESTORE op |
| convert_command_to_noop(writer, saveLayerInfo.fOffset); |
| return true; |
| } |
| |
| if (0 == dbmPaintId) { |
| // In this case just make the DBM* use the saveLayer's paint, kill the saveLayer |
| // and signal the caller (by returning true) to not add the RESTORE op |
| convert_command_to_noop(writer, saveLayerInfo.fOffset); |
| writer->overwriteTAt(dbmInfo.fOffset + dbmPaintOffset, saveLayerPaintId); |
| return true; |
| } |
| |
| SkAutoTDelete<SkPaint> saveLayerPaint(paintDict->unflatten(saveLayerPaintId)); |
| if (NULL == saveLayerPaint.get() || !is_simple(*saveLayerPaint)) { |
| return false; |
| } |
| |
| // For this optimization we only fold the saveLayer and drawBitmapRect |
| // together if the saveLayer's draw is simple (i.e., no fancy effects) and |
| // and the only difference in the colors is that the saveLayer's can have |
| // an alpha while the drawBitmapRect's is opaque. |
| // TODO: it should be possible to fold them together even if they both |
| // have different non-255 alphas |
| SkColor layerColor = saveLayerPaint->getColor() | 0xFF000000; // force opaque |
| |
| SkAutoTDelete<SkPaint> dbmPaint(paintDict->unflatten(dbmPaintId)); |
| if (NULL == dbmPaint.get() || dbmPaint->getColor() != layerColor || !is_simple(*dbmPaint)) { |
| return false; |
| } |
| |
| SkColor newColor = SkColorSetA(dbmPaint->getColor(), |
| SkColorGetA(saveLayerPaint->getColor())); |
| dbmPaint->setColor(newColor); |
| |
| const SkFlatData* data = paintDict->findAndReturnFlat(*dbmPaint); |
| if (NULL == data) { |
| return false; |
| } |
| |
| // kill the saveLayer and alter the DBMR2R's paint to be the modified one |
| convert_command_to_noop(writer, saveLayerInfo.fOffset); |
| writer->overwriteTAt(dbmInfo.fOffset + dbmPaintOffset, data->index()); |
| return true; |
| } |
| |
| /* |
| * Restore has just been called (but not recorded), look back at the |
| * matching save* and see if we are in the configuration: |
| * SAVE_LAYER (with NULL == bounds) |
| * SAVE |
| * CLIP_RECT |
| * DRAW_BITMAP|DRAW_BITMAP_MATRIX|DRAW_BITMAP_NINE|DRAW_BITMAP_RECT_TO_RECT |
| * RESTORE |
| * RESTORE |
| * where the saveLayer's color can be moved into the drawBitmap*'s paint |
| */ |
| static bool remove_save_layer2(SkWriter32* writer, int32_t offset, |
| SkPaintDictionary* paintDict) { |
| // back up to the save block |
| // TODO: add a stack to track save*/restore offsets rather than searching backwards |
| while (offset > 0) { |
| offset = writer->readTAt<uint32_t>(offset); |
| } |
| |
| int pattern[] = { SAVE_LAYER, SAVE, CLIP_RECT, kDRAW_BITMAP_FLAVOR, RESTORE, /* RESTORE */ }; |
| CommandInfo result[SK_ARRAY_COUNT(pattern)]; |
| |
| if (!match(writer, -offset, pattern, result, SK_ARRAY_COUNT(pattern))) { |
| return false; |
| } |
| |
| if (kSaveLayerWithBoundsSize == result[0].fSize) { |
| // The saveLayer's bound can offset where the dbm is drawn |
| return false; |
| } |
| |
| return merge_savelayer_paint_into_drawbitmp(writer, paintDict, |
| result[0], result[3]); |
| } |
| |
| static bool is_drawing_op(DrawType op) { |
| return (op > CONCAT && op < ROTATE) || DRAW_DRRECT == op; |
| } |
| |
| /* |
| * Restore has just been called (but not recorded), so look back at the |
| * matching save(), and see if we can eliminate the pair of them, due to no |
| * intervening matrix/clip calls. |
| * |
| * If so, update the writer and return true, in which case we won't even record |
| * the restore() call. If we still need the restore(), return false. |
| */ |
| static bool collapse_save_clip_restore(SkWriter32* writer, int32_t offset, |
| SkPaintDictionary* paintDict) { |
| int32_t restoreOffset = (int32_t)writer->bytesWritten(); |
| |
| // back up to the save block |
| while (offset > 0) { |
| offset = writer->readTAt<uint32_t>(offset); |
| } |
| |
| // now offset points to a save |
| offset = -offset; |
| uint32_t opSize; |
| DrawType op = peek_op_and_size(writer, offset, &opSize); |
| if (SAVE_LAYER == op) { |
| // not ready to cull these out yet (mrr) |
| return false; |
| } |
| SkASSERT(SAVE == op); |
| SkASSERT(kSaveSize == opSize); |
| |
| // Walk forward until we get back to either a draw-verb (abort) or we hit |
| // our restore (success). |
| int32_t saveOffset = offset; |
| |
| offset += opSize; |
| while (offset < restoreOffset) { |
| op = peek_op_and_size(writer, offset, &opSize); |
| if (is_drawing_op(op) || (SAVE_LAYER == op)) { |
| // drawing verb, abort |
| return false; |
| } |
| offset += opSize; |
| } |
| |
| writer->rewindToOffset(saveOffset); |
| return true; |
| } |
| |
| typedef bool (*PictureRecordOptProc)(SkWriter32* writer, int32_t offset, |
| SkPaintDictionary* paintDict); |
| enum PictureRecordOptType { |
| kRewind_OptType, // Optimization rewinds the command stream |
| kCollapseSaveLayer_OptType, // Optimization eliminates a save/restore pair |
| }; |
| |
| enum PictureRecordOptFlags { |
| kSkipIfBBoxHierarchy_Flag = 0x1, // Optimization should be skipped if the |
| // SkPicture has a bounding box hierarchy. |
| kRescindLastSave_Flag = 0x2, |
| kRescindLastSaveLayer_Flag = 0x4, |
| }; |
| |
| struct PictureRecordOpt { |
| PictureRecordOptProc fProc; |
| PictureRecordOptType fType; |
| unsigned fFlags; |
| }; |
| /* |
| * A list of the optimizations that are tried upon seeing a restore |
| * TODO: add a real API for such optimizations |
| * Add the ability to fire optimizations on any op (not just RESTORE) |
| */ |
| static const PictureRecordOpt gPictureRecordOpts[] = { |
| // 'collapse_save_clip_restore' is skipped if there is a BBoxHierarchy |
| // because it is redundant with the state traversal optimization in |
| // SkPictureStateTree, and applying the optimization introduces significant |
| // record time overhead because it requires rewinding contents that were |
| // recorded into the BBoxHierarchy. |
| { collapse_save_clip_restore, kRewind_OptType, |
| kSkipIfBBoxHierarchy_Flag|kRescindLastSave_Flag }, |
| { remove_save_layer1, kCollapseSaveLayer_OptType, kRescindLastSaveLayer_Flag }, |
| { remove_save_layer2, kCollapseSaveLayer_OptType, kRescindLastSaveLayer_Flag } |
| }; |
| |
| // This is called after an optimization has been applied to the command stream |
| // in order to adjust the contents and state of the bounding box hierarchy and |
| // state tree to reflect the optimization. |
| static void apply_optimization_to_bbh(PictureRecordOptType opt, SkPictureStateTree* stateTree, |
| SkBBoxHierarchy* boundingHierarchy) { |
| switch (opt) { |
| case kCollapseSaveLayer_OptType: |
| if (NULL != stateTree) { |
| stateTree->saveCollapsed(); |
| } |
| break; |
| case kRewind_OptType: |
| if (NULL != boundingHierarchy) { |
| boundingHierarchy->rewindInserts(); |
| } |
| // Note: No need to touch the state tree for this to work correctly. |
| // Unused branches do not burden the playback, and pruning the tree |
| // would be O(N^2), so it is best to leave it alone. |
| break; |
| default: |
| SkASSERT(0); |
| } |
| } |
| |
| void SkPictureRecord::willRestore() { |
| // FIXME: SkDeferredCanvas needs to be refactored to respect |
| // save/restore balancing so that the following test can be |
| // turned on permanently. |
| #if 0 |
| SkASSERT(fRestoreOffsetStack.count() > 1); |
| #endif |
| |
| // check for underflow |
| if (fRestoreOffsetStack.count() == 0) { |
| return; |
| } |
| |
| if (fRestoreOffsetStack.count() == fFirstSavedLayerIndex) { |
| fFirstSavedLayerIndex = kNoSavedLayerIndex; |
| } |
| |
| size_t opt = 0; |
| if (fOptsEnabled) { |
| for (opt = 0; opt < SK_ARRAY_COUNT(gPictureRecordOpts); ++opt) { |
| if (0 != (gPictureRecordOpts[opt].fFlags & kSkipIfBBoxHierarchy_Flag) |
| && NULL != fBoundingHierarchy) { |
| continue; |
| } |
| if ((*gPictureRecordOpts[opt].fProc)(&fWriter, fRestoreOffsetStack.top(), &fPaints)) { |
| // Some optimization fired so don't add the RESTORE |
| apply_optimization_to_bbh(gPictureRecordOpts[opt].fType, |
| fStateTree, fBoundingHierarchy); |
| if (gPictureRecordOpts[opt].fFlags & kRescindLastSave_Flag) { |
| fContentInfo.rescindLastSave(); |
| } else if (gPictureRecordOpts[opt].fFlags & kRescindLastSaveLayer_Flag) { |
| fContentInfo.rescindLastSaveLayer(); |
| } |
| break; |
| } |
| } |
| } |
| |
| if (!fOptsEnabled || SK_ARRAY_COUNT(gPictureRecordOpts) == opt) { |
| // No optimization fired so add the RESTORE |
| this->recordRestore(); |
| } |
| |
| fRestoreOffsetStack.pop(); |
| |
| this->INHERITED::willRestore(); |
| } |
| |
| void SkPictureRecord::recordRestore(bool fillInSkips) { |
| fContentInfo.onRestore(); |
| |
| if (fillInSkips) { |
| this->fillRestoreOffsetPlaceholdersForCurrentStackLevel((uint32_t)fWriter.bytesWritten()); |
| } |
| size_t size = 1 * kUInt32Size; // RESTORE consists solely of 1 op code |
| size_t initialOffset = this->addDraw(RESTORE, &size); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::recordTranslate(const SkMatrix& m) { |
| SkASSERT(SkMatrix::kTranslate_Mask == m.getType()); |
| |
| // op + dx + dy |
| size_t size = 1 * kUInt32Size + 2 * sizeof(SkScalar); |
| size_t initialOffset = this->addDraw(TRANSLATE, &size); |
| this->addScalar(m.getTranslateX()); |
| this->addScalar(m.getTranslateY()); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::recordScale(const SkMatrix& m) { |
| SkASSERT(SkMatrix::kScale_Mask == m.getType()); |
| |
| // op + sx + sy |
| size_t size = 1 * kUInt32Size + 2 * sizeof(SkScalar); |
| size_t initialOffset = this->addDraw(SCALE, &size); |
| this->addScalar(m.getScaleX()); |
| this->addScalar(m.getScaleY()); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::didConcat(const SkMatrix& matrix) { |
| switch (matrix.getType()) { |
| case SkMatrix::kTranslate_Mask: |
| this->recordTranslate(matrix); |
| break; |
| case SkMatrix::kScale_Mask: |
| this->recordScale(matrix); |
| break; |
| default: |
| this->recordConcat(matrix); |
| break; |
| } |
| this->INHERITED::didConcat(matrix); |
| } |
| |
| void SkPictureRecord::recordConcat(const SkMatrix& matrix) { |
| this->validate(fWriter.bytesWritten(), 0); |
| // op + matrix |
| size_t size = kUInt32Size + matrix.writeToMemory(NULL); |
| size_t initialOffset = this->addDraw(CONCAT, &size); |
| this->addMatrix(matrix); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::didSetMatrix(const SkMatrix& matrix) { |
| this->validate(fWriter.bytesWritten(), 0); |
| // op + matrix |
| size_t size = kUInt32Size + matrix.writeToMemory(NULL); |
| size_t initialOffset = this->addDraw(SET_MATRIX, &size); |
| this->addMatrix(matrix); |
| this->validate(initialOffset, size); |
| this->INHERITED::didSetMatrix(matrix); |
| } |
| |
| static bool regionOpExpands(SkRegion::Op op) { |
| switch (op) { |
| case SkRegion::kUnion_Op: |
| case SkRegion::kXOR_Op: |
| case SkRegion::kReverseDifference_Op: |
| case SkRegion::kReplace_Op: |
| return true; |
| case SkRegion::kIntersect_Op: |
| case SkRegion::kDifference_Op: |
| return false; |
| default: |
| SkDEBUGFAIL("unknown region op"); |
| return false; |
| } |
| } |
| |
| void SkPictureRecord::fillRestoreOffsetPlaceholdersForCurrentStackLevel(uint32_t restoreOffset) { |
| int32_t offset = fRestoreOffsetStack.top(); |
| while (offset > 0) { |
| uint32_t peek = fWriter.readTAt<uint32_t>(offset); |
| fWriter.overwriteTAt(offset, restoreOffset); |
| offset = peek; |
| } |
| |
| #ifdef SK_DEBUG |
| // assert that the final offset value points to a save verb |
| uint32_t opSize; |
| DrawType drawOp = peek_op_and_size(&fWriter, -offset, &opSize); |
| SkASSERT(SAVE == drawOp || SAVE_LAYER == drawOp); |
| #endif |
| } |
| |
| void SkPictureRecord::beginRecording() { |
| // we have to call this *after* our constructor, to ensure that it gets |
| // recorded. This is balanced by restoreToCount() call from endRecording, |
| // which in-turn calls our overridden restore(), so those get recorded too. |
| fInitialSaveCount = this->save(); |
| } |
| |
| void SkPictureRecord::endRecording() { |
| SkASSERT(kNoInitialSave != fInitialSaveCount); |
| this->restoreToCount(fInitialSaveCount); |
| } |
| |
| size_t SkPictureRecord::recordRestoreOffsetPlaceholder(SkRegion::Op op) { |
| if (fRestoreOffsetStack.isEmpty()) { |
| return -1; |
| } |
| |
| // The RestoreOffset field is initially filled with a placeholder |
| // value that points to the offset of the previous RestoreOffset |
| // in the current stack level, thus forming a linked list so that |
| // the restore offsets can be filled in when the corresponding |
| // restore command is recorded. |
| int32_t prevOffset = fRestoreOffsetStack.top(); |
| |
| if (regionOpExpands(op)) { |
| // Run back through any previous clip ops, and mark their offset to |
| // be 0, disabling their ability to trigger a jump-to-restore, otherwise |
| // they could hide this clips ability to expand the clip (i.e. go from |
| // empty to non-empty). |
| this->fillRestoreOffsetPlaceholdersForCurrentStackLevel(0); |
| |
| // Reset the pointer back to the previous clip so that subsequent |
| // restores don't overwrite the offsets we just cleared. |
| prevOffset = 0; |
| } |
| |
| size_t offset = fWriter.bytesWritten(); |
| this->addInt(prevOffset); |
| fRestoreOffsetStack.top() = SkToU32(offset); |
| return offset; |
| } |
| |
| void SkPictureRecord::onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { |
| this->recordClipRect(rect, op, kSoft_ClipEdgeStyle == edgeStyle); |
| this->INHERITED::onClipRect(rect, op, edgeStyle); |
| } |
| |
| size_t SkPictureRecord::recordClipRect(const SkRect& rect, SkRegion::Op op, bool doAA) { |
| // id + rect + clip params |
| size_t size = 1 * kUInt32Size + sizeof(rect) + 1 * kUInt32Size; |
| // recordRestoreOffsetPlaceholder doesn't always write an offset |
| if (!fRestoreOffsetStack.isEmpty()) { |
| // + restore offset |
| size += kUInt32Size; |
| } |
| size_t initialOffset = this->addDraw(CLIP_RECT, &size); |
| this->addRect(rect); |
| this->addInt(ClipParams_pack(op, doAA)); |
| size_t offset = this->recordRestoreOffsetPlaceholder(op); |
| |
| this->validate(initialOffset, size); |
| return offset; |
| } |
| |
| void SkPictureRecord::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { |
| this->recordClipRRect(rrect, op, kSoft_ClipEdgeStyle == edgeStyle); |
| this->updateClipConservativelyUsingBounds(rrect.getBounds(), op, false); |
| } |
| |
| size_t SkPictureRecord::recordClipRRect(const SkRRect& rrect, SkRegion::Op op, bool doAA) { |
| // op + rrect + clip params |
| size_t size = 1 * kUInt32Size + SkRRect::kSizeInMemory + 1 * kUInt32Size; |
| // recordRestoreOffsetPlaceholder doesn't always write an offset |
| if (!fRestoreOffsetStack.isEmpty()) { |
| // + restore offset |
| size += kUInt32Size; |
| } |
| size_t initialOffset = this->addDraw(CLIP_RRECT, &size); |
| this->addRRect(rrect); |
| this->addInt(ClipParams_pack(op, doAA)); |
| size_t offset = recordRestoreOffsetPlaceholder(op); |
| this->validate(initialOffset, size); |
| return offset; |
| } |
| |
| void SkPictureRecord::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) { |
| int pathID = this->addPathToHeap(path); |
| this->recordClipPath(pathID, op, kSoft_ClipEdgeStyle == edgeStyle); |
| |
| this->updateClipConservativelyUsingBounds(path.getBounds(), op, |
| path.isInverseFillType()); |
| } |
| |
| size_t SkPictureRecord::recordClipPath(int pathID, SkRegion::Op op, bool doAA) { |
| // op + path index + clip params |
| size_t size = 3 * kUInt32Size; |
| // recordRestoreOffsetPlaceholder doesn't always write an offset |
| if (!fRestoreOffsetStack.isEmpty()) { |
| // + restore offset |
| size += kUInt32Size; |
| } |
| size_t initialOffset = this->addDraw(CLIP_PATH, &size); |
| this->addInt(pathID); |
| this->addInt(ClipParams_pack(op, doAA)); |
| size_t offset = recordRestoreOffsetPlaceholder(op); |
| this->validate(initialOffset, size); |
| return offset; |
| } |
| |
| void SkPictureRecord::onClipRegion(const SkRegion& region, SkRegion::Op op) { |
| this->recordClipRegion(region, op); |
| this->INHERITED::onClipRegion(region, op); |
| } |
| |
| size_t SkPictureRecord::recordClipRegion(const SkRegion& region, SkRegion::Op op) { |
| // op + clip params + region |
| size_t size = 2 * kUInt32Size + region.writeToMemory(NULL); |
| // recordRestoreOffsetPlaceholder doesn't always write an offset |
| if (!fRestoreOffsetStack.isEmpty()) { |
| // + restore offset |
| size += kUInt32Size; |
| } |
| size_t initialOffset = this->addDraw(CLIP_REGION, &size); |
| this->addRegion(region); |
| this->addInt(ClipParams_pack(op, false)); |
| size_t offset = this->recordRestoreOffsetPlaceholder(op); |
| |
| this->validate(initialOffset, size); |
| return offset; |
| } |
| |
| void SkPictureRecord::clear(SkColor color) { |
| // op + color |
| size_t size = 2 * kUInt32Size; |
| size_t initialOffset = this->addDraw(DRAW_CLEAR, &size); |
| this->addInt(color); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawPaint(const SkPaint& paint) { |
| // op + paint index |
| size_t size = 2 * kUInt32Size; |
| size_t initialOffset = this->addDraw(DRAW_PAINT, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_PAINT, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawPoints(PointMode mode, size_t count, const SkPoint pts[], |
| const SkPaint& paint) { |
| fContentInfo.onDrawPoints(count, paint); |
| |
| // op + paint index + mode + count + point data |
| size_t size = 4 * kUInt32Size + count * sizeof(SkPoint); |
| size_t initialOffset = this->addDraw(DRAW_POINTS, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_POINTS, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| |
| this->addInt(mode); |
| this->addInt(SkToInt(count)); |
| fWriter.writeMul4(pts, count * sizeof(SkPoint)); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawOval(const SkRect& oval, const SkPaint& paint) { |
| // op + paint index + rect |
| size_t size = 2 * kUInt32Size + sizeof(oval); |
| size_t initialOffset = this->addDraw(DRAW_OVAL, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_OVAL, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addRect(oval); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawRect(const SkRect& rect, const SkPaint& paint) { |
| // op + paint index + rect |
| size_t size = 2 * kUInt32Size + sizeof(rect); |
| size_t initialOffset = this->addDraw(DRAW_RECT, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_RECT, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addRect(rect); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawRRect(const SkRRect& rrect, const SkPaint& paint) { |
| if (rrect.isRect() && kBeClever) { |
| this->SkPictureRecord::drawRect(rrect.getBounds(), paint); |
| } else if (rrect.isOval() && kBeClever) { |
| this->SkPictureRecord::drawOval(rrect.getBounds(), paint); |
| } else { |
| // op + paint index + rrect |
| size_t size = 2 * kUInt32Size + SkRRect::kSizeInMemory; |
| size_t initialOffset = this->addDraw(DRAW_RRECT, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_RRECT, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addRRect(rrect); |
| this->validate(initialOffset, size); |
| } |
| } |
| |
| void SkPictureRecord::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, |
| const SkPaint& paint) { |
| // op + paint index + rrects |
| size_t size = 2 * kUInt32Size + SkRRect::kSizeInMemory * 2; |
| size_t initialOffset = this->addDraw(DRAW_DRRECT, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_DRRECT, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addRRect(outer); |
| this->addRRect(inner); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawPath(const SkPath& path, const SkPaint& paint) { |
| fContentInfo.onDrawPath(path, paint); |
| |
| // op + paint index + path index |
| size_t size = 3 * kUInt32Size; |
| size_t initialOffset = this->addDraw(DRAW_PATH, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_PATH, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addPath(path); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top, |
| const SkPaint* paint = NULL) { |
| if (bitmap.drawsNothing() && kBeClever) { |
| return; |
| } |
| |
| // op + paint index + bitmap index + left + top |
| size_t size = 3 * kUInt32Size + 2 * sizeof(SkScalar); |
| size_t initialOffset = this->addDraw(DRAW_BITMAP, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_BITMAP, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addBitmap(bitmap); |
| this->addScalar(left); |
| this->addScalar(top); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src, |
| const SkRect& dst, const SkPaint* paint, |
| DrawBitmapRectFlags flags) { |
| if (bitmap.drawsNothing() && kBeClever) { |
| return; |
| } |
| |
| // id + paint index + bitmap index + bool for 'src' + flags |
| size_t size = 5 * kUInt32Size; |
| if (NULL != src) { |
| size += sizeof(*src); // + rect |
| } |
| size += sizeof(dst); // + rect |
| |
| size_t initialOffset = this->addDraw(DRAW_BITMAP_RECT_TO_RECT, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_BITMAP_RECT_TO_RECT, size) |
| == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addBitmap(bitmap); |
| this->addRectPtr(src); // may be null |
| this->addRect(dst); |
| this->addInt(flags); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& matrix, |
| const SkPaint* paint) { |
| if (bitmap.drawsNothing() && kBeClever) { |
| return; |
| } |
| |
| // id + paint index + bitmap index + matrix |
| size_t size = 3 * kUInt32Size + matrix.writeToMemory(NULL); |
| size_t initialOffset = this->addDraw(DRAW_BITMAP_MATRIX, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_BITMAP_MATRIX, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addBitmap(bitmap); |
| this->addMatrix(matrix); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, |
| const SkRect& dst, const SkPaint* paint) { |
| if (bitmap.drawsNothing() && kBeClever) { |
| return; |
| } |
| |
| // op + paint index + bitmap id + center + dst rect |
| size_t size = 3 * kUInt32Size + sizeof(center) + sizeof(dst); |
| size_t initialOffset = this->addDraw(DRAW_BITMAP_NINE, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_BITMAP_NINE, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addBitmap(bitmap); |
| this->addIRect(center); |
| this->addRect(dst); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawSprite(const SkBitmap& bitmap, int left, int top, |
| const SkPaint* paint = NULL) { |
| if (bitmap.drawsNothing() && kBeClever) { |
| return; |
| } |
| |
| // op + paint index + bitmap index + left + top |
| size_t size = 5 * kUInt32Size; |
| size_t initialOffset = this->addDraw(DRAW_SPRITE, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_SPRITE, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addBitmap(bitmap); |
| this->addInt(left); |
| this->addInt(top); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::ComputeFontMetricsTopBottom(const SkPaint& paint, SkScalar topbot[2]) { |
| SkPaint::FontMetrics metrics; |
| paint.getFontMetrics(&metrics); |
| SkRect bounds; |
| // construct a rect so we can see any adjustments from the paint. |
| // we use 0,1 for left,right, just so the rect isn't empty |
| bounds.set(0, metrics.fTop, SK_Scalar1, metrics.fBottom); |
| (void)paint.computeFastBounds(bounds, &bounds); |
| topbot[0] = bounds.fTop; |
| topbot[1] = bounds.fBottom; |
| } |
| |
| void SkPictureRecord::addFontMetricsTopBottom(const SkPaint& paint, const SkFlatData& flat, |
| SkScalar minY, SkScalar maxY) { |
| WriteTopBot(paint, flat); |
| this->addScalar(flat.topBot()[0] + minY); |
| this->addScalar(flat.topBot()[1] + maxY); |
| } |
| |
| void SkPictureRecord::onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, |
| const SkPaint& paint) { |
| bool fast = !paint.isVerticalText() && paint.canComputeFastBounds() && kBeClever; |
| |
| // op + paint index + length + 'length' worth of chars + x + y |
| size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + 2 * sizeof(SkScalar); |
| if (fast) { |
| size += 2 * sizeof(SkScalar); // + top & bottom |
| } |
| |
| DrawType op = fast ? DRAW_TEXT_TOP_BOTTOM : DRAW_TEXT; |
| size_t initialOffset = this->addDraw(op, &size); |
| SkASSERT(initialOffset+getPaintOffset(op, size) == fWriter.bytesWritten()); |
| const SkFlatData* flatPaintData = addPaint(paint); |
| SkASSERT(flatPaintData); |
| this->addText(text, byteLength); |
| this->addScalar(x); |
| this->addScalar(y); |
| if (fast) { |
| this->addFontMetricsTopBottom(paint, *flatPaintData, y, y); |
| } |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], |
| const SkPaint& paint) { |
| int points = paint.countText(text, byteLength); |
| if (0 == points) |
| return; |
| |
| bool canUseDrawH = true; |
| SkScalar minY = pos[0].fY; |
| SkScalar maxY = pos[0].fY; |
| // check if the caller really should have used drawPosTextH() |
| { |
| const SkScalar firstY = pos[0].fY; |
| for (int index = 1; index < points; index++) { |
| if (pos[index].fY != firstY) { |
| canUseDrawH = false; |
| if (pos[index].fY < minY) { |
| minY = pos[index].fY; |
| } else if (pos[index].fY > maxY) { |
| maxY = pos[index].fY; |
| } |
| } |
| } |
| } |
| |
| bool fastBounds = !paint.isVerticalText() && paint.canComputeFastBounds() && kBeClever; |
| bool fast = canUseDrawH && fastBounds && kBeClever; |
| |
| // op + paint index + length + 'length' worth of data + num points |
| size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + 1 * kUInt32Size; |
| if (canUseDrawH) { |
| if (fast) { |
| size += 2 * sizeof(SkScalar); // + top & bottom |
| } |
| // + y-pos + actual x-point data |
| size += sizeof(SkScalar) + points * sizeof(SkScalar); |
| } else { |
| // + x&y point data |
| size += points * sizeof(SkPoint); |
| if (fastBounds) { |
| size += 2 * sizeof(SkScalar); // + top & bottom |
| } |
| } |
| |
| DrawType op; |
| if (fast) { |
| op = DRAW_POS_TEXT_H_TOP_BOTTOM; |
| } else if (canUseDrawH) { |
| op = DRAW_POS_TEXT_H; |
| } else if (fastBounds) { |
| op = DRAW_POS_TEXT_TOP_BOTTOM; |
| } else { |
| op = DRAW_POS_TEXT; |
| } |
| size_t initialOffset = this->addDraw(op, &size); |
| SkASSERT(initialOffset+getPaintOffset(op, size) == fWriter.bytesWritten()); |
| const SkFlatData* flatPaintData = this->addPaint(paint); |
| SkASSERT(flatPaintData); |
| this->addText(text, byteLength); |
| this->addInt(points); |
| |
| if (canUseDrawH) { |
| if (fast) { |
| this->addFontMetricsTopBottom(paint, *flatPaintData, pos[0].fY, pos[0].fY); |
| } |
| this->addScalar(pos[0].fY); |
| SkScalar* xptr = (SkScalar*)fWriter.reserve(points * sizeof(SkScalar)); |
| for (int index = 0; index < points; index++) |
| *xptr++ = pos[index].fX; |
| } else { |
| fWriter.writeMul4(pos, points * sizeof(SkPoint)); |
| if (fastBounds) { |
| this->addFontMetricsTopBottom(paint, *flatPaintData, minY, maxY); |
| } |
| } |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], |
| SkScalar constY, const SkPaint& paint) { |
| const SkFlatData* flatPaintData = this->getFlatPaintData(paint); |
| this->drawPosTextHImpl(text, byteLength, xpos, constY, paint, flatPaintData); |
| } |
| |
| void SkPictureRecord::drawPosTextHImpl(const void* text, size_t byteLength, |
| const SkScalar xpos[], SkScalar constY, |
| const SkPaint& paint, const SkFlatData* flatPaintData) { |
| int points = paint.countText(text, byteLength); |
| if (0 == points && kBeClever) { |
| return; |
| } |
| |
| bool fast = !paint.isVerticalText() && paint.canComputeFastBounds() && kBeClever; |
| |
| // op + paint index + length + 'length' worth of data + num points |
| size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + 1 * kUInt32Size; |
| if (fast) { |
| size += 2 * sizeof(SkScalar); // + top & bottom |
| } |
| // + y + the actual points |
| size += 1 * kUInt32Size + points * sizeof(SkScalar); |
| size_t initialOffset = this->addDraw(fast ? DRAW_POS_TEXT_H_TOP_BOTTOM : DRAW_POS_TEXT_H, |
| &size); |
| SkASSERT(flatPaintData); |
| this->addFlatPaint(flatPaintData); |
| |
| this->addText(text, byteLength); |
| this->addInt(points); |
| |
| if (fast) { |
| this->addFontMetricsTopBottom(paint, *flatPaintData, constY, constY); |
| } |
| this->addScalar(constY); |
| fWriter.writeMul4(xpos, points * sizeof(SkScalar)); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path, |
| const SkMatrix* matrix, const SkPaint& paint) { |
| // op + paint index + length + 'length' worth of data + path index + matrix |
| const SkMatrix& m = matrix ? *matrix : SkMatrix::I(); |
| size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + kUInt32Size + m.writeToMemory(NULL); |
| size_t initialOffset = this->addDraw(DRAW_TEXT_ON_PATH, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_TEXT_ON_PATH, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addText(text, byteLength); |
| this->addPath(path); |
| this->addMatrix(m); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawPicture(const SkPicture* picture, const SkMatrix* matrix, |
| const SkPaint* paint) { |
| // op + picture index |
| size_t size = 2 * kUInt32Size; |
| size_t initialOffset; |
| |
| if (NULL == matrix && NULL == paint) { |
| initialOffset = this->addDraw(DRAW_PICTURE, &size); |
| this->addPicture(picture); |
| } else { |
| const SkMatrix& m = matrix ? *matrix : SkMatrix::I(); |
| size += m.writeToMemory(NULL) + kUInt32Size; // matrix + paint |
| initialOffset = this->addDraw(DRAW_PICTURE_MATRIX_PAINT, &size); |
| SkASSERT(initialOffset + getPaintOffset(DRAW_PICTURE_MATRIX_PAINT, size) |
| == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addMatrix(m); |
| this->addPicture(picture); |
| } |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawVertices(VertexMode vmode, int vertexCount, |
| const SkPoint vertices[], const SkPoint texs[], |
| const SkColor colors[], SkXfermode* xfer, |
| const uint16_t indices[], int indexCount, |
| const SkPaint& paint) { |
| uint32_t flags = 0; |
| if (texs) { |
| flags |= DRAW_VERTICES_HAS_TEXS; |
| } |
| if (colors) { |
| flags |= DRAW_VERTICES_HAS_COLORS; |
| } |
| if (indexCount > 0) { |
| flags |= DRAW_VERTICES_HAS_INDICES; |
| } |
| if (NULL != xfer) { |
| SkXfermode::Mode mode; |
| if (xfer->asMode(&mode) && SkXfermode::kModulate_Mode != mode) { |
| flags |= DRAW_VERTICES_HAS_XFER; |
| } |
| } |
| |
| // op + paint index + flags + vmode + vCount + vertices |
| size_t size = 5 * kUInt32Size + vertexCount * sizeof(SkPoint); |
| if (flags & DRAW_VERTICES_HAS_TEXS) { |
| size += vertexCount * sizeof(SkPoint); // + uvs |
| } |
| if (flags & DRAW_VERTICES_HAS_COLORS) { |
| size += vertexCount * sizeof(SkColor); // + vert colors |
| } |
| if (flags & DRAW_VERTICES_HAS_INDICES) { |
| // + num indices + indices |
| size += 1 * kUInt32Size + SkAlign4(indexCount * sizeof(uint16_t)); |
| } |
| if (flags & DRAW_VERTICES_HAS_XFER) { |
| size += kUInt32Size; // mode enum |
| } |
| |
| size_t initialOffset = this->addDraw(DRAW_VERTICES, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_VERTICES, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addInt(flags); |
| this->addInt(vmode); |
| this->addInt(vertexCount); |
| this->addPoints(vertices, vertexCount); |
| if (flags & DRAW_VERTICES_HAS_TEXS) { |
| this->addPoints(texs, vertexCount); |
| } |
| if (flags & DRAW_VERTICES_HAS_COLORS) { |
| fWriter.writeMul4(colors, vertexCount * sizeof(SkColor)); |
| } |
| if (flags & DRAW_VERTICES_HAS_INDICES) { |
| this->addInt(indexCount); |
| fWriter.writePad(indices, indexCount * sizeof(uint16_t)); |
| } |
| if (flags & DRAW_VERTICES_HAS_XFER) { |
| SkXfermode::Mode mode = SkXfermode::kModulate_Mode; |
| (void)xfer->asMode(&mode); |
| this->addInt(mode); |
| } |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], |
| const SkPoint texCoords[4], SkXfermode* xmode, |
| const SkPaint& paint) { |
| // op + paint index + patch 12 control points + flag + patch 4 colors + 4 texture coordinates |
| size_t size = 2 * kUInt32Size + SkPatchUtils::kNumCtrlPts * sizeof(SkPoint) + kUInt32Size; |
| uint32_t flag = 0; |
| if (NULL != colors) { |
| flag |= DRAW_VERTICES_HAS_COLORS; |
| size += SkPatchUtils::kNumCorners * sizeof(SkColor); |
| } |
| if (NULL != texCoords) { |
| flag |= DRAW_VERTICES_HAS_TEXS; |
| size += SkPatchUtils::kNumCorners * sizeof(SkPoint); |
| } |
| if (NULL != xmode) { |
| SkXfermode::Mode mode; |
| if (xmode->asMode(&mode) && SkXfermode::kModulate_Mode != mode) { |
| flag |= DRAW_VERTICES_HAS_XFER; |
| size += kUInt32Size; |
| } |
| } |
| |
| size_t initialOffset = this->addDraw(DRAW_PATCH, &size); |
| SkASSERT(initialOffset+getPaintOffset(DRAW_PATCH, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addPatch(cubics); |
| this->addInt(flag); |
| |
| // write optional parameters |
| if (NULL != colors) { |
| fWriter.write(colors, SkPatchUtils::kNumCorners * sizeof(SkColor)); |
| } |
| if (NULL != texCoords) { |
| fWriter.write(texCoords, SkPatchUtils::kNumCorners * sizeof(SkPoint)); |
| } |
| if (flag & DRAW_VERTICES_HAS_XFER) { |
| SkXfermode::Mode mode = SkXfermode::kModulate_Mode; |
| xmode->asMode(&mode); |
| this->addInt(mode); |
| } |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::drawData(const void* data, size_t length) { |
| // op + length + 'length' worth of data |
| size_t size = 2 * kUInt32Size + SkAlign4(length); |
| size_t initialOffset = this->addDraw(DRAW_DATA, &size); |
| this->addInt(SkToInt(length)); |
| fWriter.writePad(data, length); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::beginCommentGroup(const char* description) { |
| // op/size + length of string + \0 terminated chars |
| size_t length = strlen(description); |
| size_t size = 2 * kUInt32Size + SkAlign4(length + 1); |
| size_t initialOffset = this->addDraw(BEGIN_COMMENT_GROUP, &size); |
| fWriter.writeString(description, length); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::addComment(const char* kywd, const char* value) { |
| // op/size + 2x length of string + 2x \0 terminated chars |
| size_t kywdLen = strlen(kywd); |
| size_t valueLen = strlen(value); |
| size_t size = 3 * kUInt32Size + SkAlign4(kywdLen + 1) + SkAlign4(valueLen + 1); |
| size_t initialOffset = this->addDraw(COMMENT, &size); |
| fWriter.writeString(kywd, kywdLen); |
| fWriter.writeString(value, valueLen); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::endCommentGroup() { |
| // op/size |
| size_t size = 1 * kUInt32Size; |
| size_t initialOffset = this->addDraw(END_COMMENT_GROUP, &size); |
| this->validate(initialOffset, size); |
| } |
| |
| // [op/size] [rect] [skip offset] |
| static const uint32_t kPushCullOpSize = 2 * kUInt32Size + sizeof(SkRect); |
| void SkPictureRecord::onPushCull(const SkRect& cullRect) { |
| size_t size = kPushCullOpSize; |
| size_t initialOffset = this->addDraw(PUSH_CULL, &size); |
| // PUSH_CULL's size should stay constant (used to rewind). |
| SkASSERT(size == kPushCullOpSize); |
| |
| this->addRect(cullRect); |
| fCullOffsetStack.push(SkToU32(fWriter.bytesWritten())); |
| this->addInt(0); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onPopCull() { |
| SkASSERT(!fCullOffsetStack.isEmpty()); |
| |
| uint32_t cullSkipOffset = fCullOffsetStack.top(); |
| fCullOffsetStack.pop(); |
| |
| // Collapse empty push/pop pairs. |
| if ((size_t)(cullSkipOffset + kUInt32Size) == fWriter.bytesWritten() && kBeClever) { |
| SkASSERT(fWriter.bytesWritten() >= kPushCullOpSize); |
| SkASSERT(PUSH_CULL == peek_op(&fWriter, fWriter.bytesWritten() - kPushCullOpSize)); |
| fWriter.rewindToOffset(fWriter.bytesWritten() - kPushCullOpSize); |
| return; |
| } |
| |
| // op only |
| size_t size = kUInt32Size; |
| size_t initialOffset = this->addDraw(POP_CULL, &size); |
| |
| // update the cull skip offset to point past this op. |
| fWriter.overwriteTAt<uint32_t>(cullSkipOffset, SkToU32(fWriter.bytesWritten())); |
| |
| this->validate(initialOffset, size); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkSurface* SkPictureRecord::onNewSurface(const SkImageInfo& info) { |
| return NULL; |
| } |
| |
| int SkPictureRecord::addBitmap(const SkBitmap& bitmap) { |
| const int index = fBitmapHeap->insert(bitmap); |
| // In debug builds, a bad return value from insert() will crash, allowing for debugging. In |
| // release builds, the invalid value will be recorded so that the reader will know that there |
| // was a problem. |
| SkASSERT(index != SkBitmapHeap::INVALID_SLOT); |
| this->addInt(index); |
| return index; |
| } |
| |
| void SkPictureRecord::addMatrix(const SkMatrix& matrix) { |
| fWriter.writeMatrix(matrix); |
| } |
| |
| const SkFlatData* SkPictureRecord::getFlatPaintData(const SkPaint& paint) { |
| return fPaints.findAndReturnFlat(paint); |
| } |
| |
| const SkFlatData* SkPictureRecord::addPaintPtr(const SkPaint* paint) { |
| fContentInfo.onAddPaintPtr(paint); |
| |
| const SkFlatData* data = paint ? getFlatPaintData(*paint) : NULL; |
| this->addFlatPaint(data); |
| return data; |
| } |
| |
| void SkPictureRecord::addFlatPaint(const SkFlatData* flatPaint) { |
| int index = flatPaint ? flatPaint->index() : 0; |
| this->addInt(index); |
| } |
| |
| int SkPictureRecord::addPathToHeap(const SkPath& path) { |
| if (NULL == fPathHeap) { |
| fPathHeap.reset(SkNEW(SkPathHeap)); |
| } |
| #ifdef SK_DEDUP_PICTURE_PATHS |
| return fPathHeap->insert(path); |
| #else |
| return fPathHeap->append(path); |
| #endif |
| } |
| |
| void SkPictureRecord::addPath(const SkPath& path) { |
| this->addInt(this->addPathToHeap(path)); |
| } |
| |
| void SkPictureRecord::addPatch(const SkPoint cubics[12]) { |
| fWriter.write(cubics, SkPatchUtils::kNumCtrlPts * sizeof(SkPoint)); |
| } |
| |
| void SkPictureRecord::addPicture(const SkPicture* picture) { |
| int index = fPictureRefs.find(picture); |
| if (index < 0) { // not found |
| index = fPictureRefs.count(); |
| *fPictureRefs.append() = picture; |
| picture->ref(); |
| } |
| // follow the convention of recording a 1-based index |
| this->addInt(index + 1); |
| } |
| |
| void SkPictureRecord::addPoint(const SkPoint& point) { |
| fWriter.writePoint(point); |
| } |
| |
| void SkPictureRecord::addPoints(const SkPoint pts[], int count) { |
| fWriter.writeMul4(pts, count * sizeof(SkPoint)); |
| } |
| |
| void SkPictureRecord::addNoOp() { |
| size_t size = kUInt32Size; // op |
| this->addDraw(NOOP, &size); |
| } |
| |
| void SkPictureRecord::addRect(const SkRect& rect) { |
| fWriter.writeRect(rect); |
| } |
| |
| void SkPictureRecord::addRectPtr(const SkRect* rect) { |
| if (fWriter.writeBool(rect != NULL)) { |
| fWriter.writeRect(*rect); |
| } |
| } |
| |
| void SkPictureRecord::addIRect(const SkIRect& rect) { |
| fWriter.write(&rect, sizeof(rect)); |
| } |
| |
| void SkPictureRecord::addIRectPtr(const SkIRect* rect) { |
| if (fWriter.writeBool(rect != NULL)) { |
| *(SkIRect*)fWriter.reserve(sizeof(SkIRect)) = *rect; |
| } |
| } |
| |
| void SkPictureRecord::addRRect(const SkRRect& rrect) { |
| fWriter.writeRRect(rrect); |
| } |
| |
| void SkPictureRecord::addRegion(const SkRegion& region) { |
| fWriter.writeRegion(region); |
| } |
| |
| void SkPictureRecord::addText(const void* text, size_t byteLength) { |
| fContentInfo.onDrawText(); |
| addInt(SkToInt(byteLength)); |
| fWriter.writePad(text, byteLength); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
