| /* |
| * 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 "SkDevice.h" |
| #include "SkImage_Base.h" |
| #include "SkPatchUtils.h" |
| #include "SkPixelRef.h" |
| #include "SkRRect.h" |
| #include "SkRSXform.h" |
| #include "SkTextBlob.h" |
| #include "SkTSearch.h" |
| |
| #define HEAP_BLOCK_SIZE 4096 |
| |
| 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; |
| #ifdef SK_DEBUG |
| static const uint32_t kSaveLayerNoBoundsSize = 4 * kUInt32Size; |
| static const uint32_t kSaveLayerWithBoundsSize = 4 * kUInt32Size + sizeof(SkRect); |
| #endif//SK_DEBUG |
| |
| SkPictureRecord::SkPictureRecord(const SkISize& dimensions, uint32_t flags) |
| : INHERITED(dimensions.width(), dimensions.height()) |
| , fRecordFlags(flags) |
| , fInitialSaveCount(kNoInitialSave) { |
| } |
| |
| SkPictureRecord::~SkPictureRecord() { |
| fImageRefs.unrefAll(); |
| fPictureRefs.unrefAll(); |
| fTextBlobRefs.unrefAll(); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #ifdef SK_DEBUG |
| // 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 get_paint_offset(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, deprecated |
| 1, // DRAW_BITMAP_NINE - right after op code |
| 1, // DRAW_BITMAP_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 |
| 1, // DRAW_TEXT_BLOB- right after op code |
| 1, // DRAW_IMAGE - right after op code |
| 1, // DRAW_IMAGE_RECT_STRICT - right after op code |
| 1, // DRAW_ATLAS - right after op code |
| 1, // DRAW_IMAGE_NINE - right after op code |
| 1, // DRAW_IMAGE_RECT - right after op code |
| }; |
| |
| static_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; |
| } |
| #endif//SK_DEBUG |
| |
| 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); |
| |
| 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 (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+get_paint_offset(SAVE_LAYER, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addInt(flags); |
| |
| this->validate(initialOffset, size); |
| } |
| |
| #ifdef SK_DEBUG |
| /* |
| * 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; |
| } |
| #endif//SK_DEBUG |
| |
| void SkPictureRecord::willRestore() { |
| #if 0 |
| SkASSERT(fRestoreOffsetStack.count() > 1); |
| #endif |
| |
| // check for underflow |
| if (fRestoreOffsetStack.count() == 0) { |
| return; |
| } |
| |
| 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(nullptr); |
| 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(nullptr); |
| 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 |
| // offset of 0 has been disabled, so we skip it |
| if (offset > 0) { |
| // 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->INHERITED::onClipRRect(rrect, op, edgeStyle); |
| } |
| |
| 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->INHERITED::onClipPath(path, op, edgeStyle); |
| } |
| |
| 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(nullptr); |
| // 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::onDrawPaint(const SkPaint& paint) { |
| // op + paint index |
| size_t size = 2 * kUInt32Size; |
| size_t initialOffset = this->addDraw(DRAW_PAINT, &size); |
| SkASSERT(initialOffset+get_paint_offset(DRAW_PAINT, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawPoints(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+get_paint_offset(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::onDrawOval(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+get_paint_offset(DRAW_OVAL, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addRect(oval); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawRect(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+get_paint_offset(DRAW_RECT, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addRect(rect); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) { |
| // op + paint index + rrect |
| size_t size = 2 * kUInt32Size + SkRRect::kSizeInMemory; |
| size_t initialOffset = this->addDraw(DRAW_RRECT, &size); |
| SkASSERT(initialOffset+get_paint_offset(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+get_paint_offset(DRAW_DRRECT, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addRRect(outer); |
| this->addRRect(inner); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawPath(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+get_paint_offset(DRAW_PATH, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addPath(path); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top, |
| const SkPaint* paint) { |
| // 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+get_paint_offset(DRAW_BITMAP, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addBitmap(bitmap); |
| this->addScalar(left); |
| this->addScalar(top); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst, |
| const SkPaint* paint, SrcRectConstraint constraint) { |
| // id + paint index + bitmap index + bool for 'src' + flags |
| size_t size = 5 * kUInt32Size; |
| if (src) { |
| size += sizeof(*src); // + rect |
| } |
| size += sizeof(dst); // + rect |
| |
| size_t initialOffset = this->addDraw(DRAW_BITMAP_RECT, &size); |
| SkASSERT(initialOffset+get_paint_offset(DRAW_BITMAP_RECT, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addBitmap(bitmap); |
| this->addRectPtr(src); // may be null |
| this->addRect(dst); |
| this->addInt(constraint); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawImage(const SkImage* image, SkScalar x, SkScalar y, |
| const SkPaint* paint) { |
| // op + paint_index + image_index + x + y |
| size_t size = 3 * kUInt32Size + 2 * sizeof(SkScalar); |
| size_t initialOffset = this->addDraw(DRAW_IMAGE, &size); |
| SkASSERT(initialOffset+get_paint_offset(DRAW_IMAGE, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addImage(image); |
| this->addScalar(x); |
| this->addScalar(y); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst, |
| const SkPaint* paint, SrcRectConstraint constraint) { |
| // id + paint_index + image_index + bool_for_src + constraint |
| size_t size = 5 * kUInt32Size; |
| if (src) { |
| size += sizeof(*src); // + rect |
| } |
| size += sizeof(dst); // + rect |
| |
| size_t initialOffset = this->addDraw(DRAW_IMAGE_RECT, &size); |
| SkASSERT(initialOffset+get_paint_offset(DRAW_IMAGE_RECT, size) |
| == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addImage(image); |
| this->addRectPtr(src); // may be null |
| this->addRect(dst); |
| this->addInt(constraint); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawImageNine(const SkImage* img, const SkIRect& center, const SkRect& dst, |
| const SkPaint* paint) { |
| // id + paint_index + image_index + center + dst |
| size_t size = 3 * kUInt32Size + sizeof(SkIRect) + sizeof(SkRect); |
| |
| size_t initialOffset = this->addDraw(DRAW_IMAGE_NINE, &size); |
| SkASSERT(initialOffset+get_paint_offset(DRAW_IMAGE_NINE, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addImage(img); |
| this->addIRect(center); |
| this->addRect(dst); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, |
| const SkRect& dst, const SkPaint* paint) { |
| // 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+get_paint_offset(DRAW_BITMAP_NINE, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addBitmap(bitmap); |
| this->addIRect(center); |
| this->addRect(dst); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawSprite(const SkBitmap& bitmap, int left, int top, |
| const SkPaint* paint) { |
| // op + paint index + bitmap index + left + top |
| size_t size = 5 * kUInt32Size; |
| size_t initialOffset = this->addDraw(DRAW_SPRITE, &size); |
| SkASSERT(initialOffset+get_paint_offset(DRAW_SPRITE, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addBitmap(bitmap); |
| this->addInt(left); |
| this->addInt(top); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, |
| const SkPaint& paint) { |
| // op + paint index + length + 'length' worth of chars + x + y |
| size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + 2 * sizeof(SkScalar); |
| |
| DrawType op = DRAW_TEXT; |
| size_t initialOffset = this->addDraw(op, &size); |
| SkASSERT(initialOffset+get_paint_offset(op, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addText(text, byteLength); |
| this->addScalar(x); |
| this->addScalar(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); |
| |
| // op + paint index + length + 'length' worth of data + num points + x&y point data |
| size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + kUInt32Size + points * sizeof(SkPoint); |
| |
| DrawType op = DRAW_POS_TEXT; |
| |
| size_t initialOffset = this->addDraw(op, &size); |
| SkASSERT(initialOffset+get_paint_offset(op, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addText(text, byteLength); |
| this->addInt(points); |
| fWriter.writeMul4(pos, points * sizeof(SkPoint)); |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], |
| SkScalar constY, const SkPaint& paint) { |
| int points = paint.countText(text, byteLength); |
| |
| // op + paint index + length + 'length' worth of data + num points |
| size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + 1 * kUInt32Size; |
| // + y + the actual points |
| size += 1 * kUInt32Size + points * sizeof(SkScalar); |
| |
| size_t initialOffset = this->addDraw(DRAW_POS_TEXT_H, &size); |
| this->addPaint(paint); |
| this->addText(text, byteLength); |
| this->addInt(points); |
| 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(nullptr); |
| size_t initialOffset = this->addDraw(DRAW_TEXT_ON_PATH, &size); |
| SkASSERT(initialOffset+get_paint_offset(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::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, |
| const SkPaint& paint) { |
| |
| // op + paint index + blob index + x/y |
| size_t size = 3 * kUInt32Size + 2 * sizeof(SkScalar); |
| size_t initialOffset = this->addDraw(DRAW_TEXT_BLOB, &size); |
| SkASSERT(initialOffset + get_paint_offset(DRAW_TEXT_BLOB, size) == fWriter.bytesWritten()); |
| |
| this->addPaint(paint); |
| this->addTextBlob(blob); |
| this->addScalar(x); |
| this->addScalar(y); |
| |
| 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 (nullptr == matrix && nullptr == paint) { |
| initialOffset = this->addDraw(DRAW_PICTURE, &size); |
| this->addPicture(picture); |
| } else { |
| const SkMatrix& m = matrix ? *matrix : SkMatrix::I(); |
| size += m.writeToMemory(nullptr) + kUInt32Size; // matrix + paint |
| initialOffset = this->addDraw(DRAW_PICTURE_MATRIX_PAINT, &size); |
| SkASSERT(initialOffset + get_paint_offset(DRAW_PICTURE_MATRIX_PAINT, size) |
| == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addMatrix(m); |
| this->addPicture(picture); |
| } |
| this->validate(initialOffset, size); |
| } |
| |
| void SkPictureRecord::onDrawVertices(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 (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+get_paint_offset(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 (colors) { |
| flag |= DRAW_VERTICES_HAS_COLORS; |
| size += SkPatchUtils::kNumCorners * sizeof(SkColor); |
| } |
| if (texCoords) { |
| flag |= DRAW_VERTICES_HAS_TEXS; |
| size += SkPatchUtils::kNumCorners * sizeof(SkPoint); |
| } |
| if (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+get_paint_offset(DRAW_PATCH, size) == fWriter.bytesWritten()); |
| this->addPaint(paint); |
| this->addPatch(cubics); |
| this->addInt(flag); |
| |
| // write optional parameters |
| if (colors) { |
| fWriter.write(colors, SkPatchUtils::kNumCorners * sizeof(SkColor)); |
| } |
| if (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::onDrawAtlas(const SkImage* atlas, const SkRSXform xform[], const SkRect tex[], |
| const SkColor colors[], int count, SkXfermode::Mode mode, |
| const SkRect* cull, const SkPaint* paint) { |
| // [op + paint-index + atlas-index + flags + count] + [xform] + [tex] + [*colors + mode] + cull |
| size_t size = 5 * kUInt32Size + count * sizeof(SkRSXform) + count * sizeof(SkRect); |
| uint32_t flags = 0; |
| if (colors) { |
| flags |= DRAW_ATLAS_HAS_COLORS; |
| size += count * sizeof(SkColor); |
| size += sizeof(uint32_t); // xfermode::mode |
| } |
| if (cull) { |
| flags |= DRAW_ATLAS_HAS_CULL; |
| size += sizeof(SkRect); |
| } |
| |
| size_t initialOffset = this->addDraw(DRAW_ATLAS, &size); |
| SkASSERT(initialOffset+get_paint_offset(DRAW_ATLAS, size) == fWriter.bytesWritten()); |
| this->addPaintPtr(paint); |
| this->addImage(atlas); |
| this->addInt(flags); |
| this->addInt(count); |
| fWriter.write(xform, count * sizeof(SkRSXform)); |
| fWriter.write(tex, count * sizeof(SkRect)); |
| |
| // write optional parameters |
| if (colors) { |
| fWriter.write(colors, count * sizeof(SkColor)); |
| this->addInt(mode); |
| } |
| if (cull) { |
| fWriter.write(cull, sizeof(SkRect)); |
| } |
| this->validate(initialOffset, size); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkSurface* SkPictureRecord::onNewSurface(const SkImageInfo& info, const SkSurfaceProps&) { |
| return nullptr; |
| } |
| |
| // If we already have a stored, can we reuse it instead of also storing b? |
| static bool equivalent(const SkBitmap& a, const SkBitmap& b) { |
| if (a.info() != b.info() || a.pixelRefOrigin() != b.pixelRefOrigin()) { |
| // Requiring a.info() == b.info() may be overkill in some cases (alphatype mismatch), |
| // but it sure makes things easier to reason about below. |
| return false; |
| } |
| if (a.pixelRef() == b.pixelRef()) { |
| return true; // Same shape and same pixels -> same bitmap. |
| } |
| |
| // From here down we're going to have to look at the bitmap data, so we require pixelRefs(). |
| if (!a.pixelRef() || !b.pixelRef()) { |
| return false; |
| } |
| |
| // If the bitmaps have encoded data, check first before locking pixels so they don't decode. |
| SkAutoTUnref<SkData> encA(a.pixelRef()->refEncodedData()), |
| encB(b.pixelRef()->refEncodedData()); |
| if (encA && encB) { |
| return encA->equals(encB); |
| } else if (encA || encB) { |
| return false; // One has encoded data but the other does not. |
| } |
| |
| // As a last resort, we have to look at the pixels. This will read back textures. |
| SkAutoLockPixels al(a), bl(b); |
| const char* ap = (const char*)a.getPixels(); |
| const char* bp = (const char*)b.getPixels(); |
| if (ap && bp) { |
| // We check row by row; row bytes might differ. |
| SkASSERT(a.info() == b.info()); // We checked this above. |
| SkASSERT(a.info().bytesPerPixel() > 0); // If we have pixelRefs, this better be true. |
| const SkImageInfo info = a.info(); |
| const size_t bytesToCompare = info.width() * info.bytesPerPixel(); |
| for (int row = 0; row < info.height(); row++) { |
| if (0 != memcmp(ap, bp, bytesToCompare)) { |
| return false; |
| } |
| ap += a.rowBytes(); |
| bp += b.rowBytes(); |
| } |
| return true; |
| } |
| return false; // Couldn't get pixels for both bitmaps. |
| } |
| |
| void SkPictureRecord::addBitmap(const SkBitmap& bitmap) { |
| // First see if we already have this bitmap. This deduplication should really |
| // only be important for our tests, where bitmaps tend not to be tagged immutable. |
| // In Chrome (and hopefully Android?) they're typically immutable. |
| for (int i = 0; i < fBitmaps.count(); i++) { |
| if (equivalent(fBitmaps[i], bitmap)) { |
| this->addInt(i); // Unlike the rest, bitmap indices are 0-based. |
| return; |
| } |
| } |
| // Don't have it. We'll add it to our list, making sure it's tagged as immutable. |
| if (bitmap.isImmutable()) { |
| // Shallow copies of bitmaps are cheap, so immutable == fast. |
| fBitmaps.push_back(bitmap); |
| } else { |
| // If you see this block on a memory profile, it's a good opportunity to reduce RAM usage. |
| SkBitmap copy; |
| bitmap.copyTo(©); |
| copy.setImmutable(); |
| fBitmaps.push_back(copy); |
| } |
| this->addInt(fBitmaps.count()-1); // Remember, 0-based. |
| } |
| |
| void SkPictureRecord::addImage(const SkImage* image) { |
| int index = fImageRefs.find(image); |
| if (index >= 0) { |
| this->addInt(index); |
| } else { |
| *fImageRefs.append() = SkRef(image); |
| this->addInt(fImageRefs.count()-1); |
| } |
| } |
| |
| void SkPictureRecord::addMatrix(const SkMatrix& matrix) { |
| fWriter.writeMatrix(matrix); |
| } |
| |
| void SkPictureRecord::addPaintPtr(const SkPaint* paint) { |
| fContentInfo.onAddPaintPtr(paint); |
| |
| if (paint) { |
| fPaints.push_back(*paint); |
| this->addInt(fPaints.count()); |
| } else { |
| this->addInt(0); |
| } |
| } |
| |
| int SkPictureRecord::addPathToHeap(const SkPath& path) { |
| fPaths.push_back(path); |
| return fPaths.count(); |
| } |
| |
| 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 != nullptr)) { |
| fWriter.writeRect(*rect); |
| } |
| } |
| |
| void SkPictureRecord::addIRect(const SkIRect& rect) { |
| fWriter.write(&rect, sizeof(rect)); |
| } |
| |
| void SkPictureRecord::addIRectPtr(const SkIRect* rect) { |
| if (fWriter.writeBool(rect != nullptr)) { |
| *(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); |
| } |
| |
| void SkPictureRecord::addTextBlob(const SkTextBlob *blob) { |
| int index = fTextBlobRefs.count(); |
| *fTextBlobRefs.append() = blob; |
| blob->ref(); |
| // follow the convention of recording a 1-based index |
| this->addInt(index + 1); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
