/*
* 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 "SkBitmapHeap.h"
#include "SkCanvas.h"
#include "SkPaint.h"
#include "SkGPipe.h"
#include "SkGPipePriv.h"
#include "SkReader32.h"
#include "SkStream.h"
#include "SkColorFilter.h"
#include "SkDrawLooper.h"
#include "SkMaskFilter.h"
#include "SkOrderedReadBuffer.h"
#include "SkPathEffect.h"
#include "SkRasterizer.h"
#include "SkRRect.h"
#include "SkShader.h"
#include "SkTypeface.h"
#include "SkXfermode.h"
static void set_paintflat(SkPaint* paint, SkFlattenable* obj, unsigned paintFlat) {
SkASSERT(paintFlat < kCount_PaintFlats);
switch (paintFlat) {
case kColorFilter_PaintFlat:
paint->setColorFilter((SkColorFilter*)obj);
break;
case kDrawLooper_PaintFlat:
paint->setLooper((SkDrawLooper*)obj);
break;
case kMaskFilter_PaintFlat:
paint->setMaskFilter((SkMaskFilter*)obj);
break;
case kPathEffect_PaintFlat:
paint->setPathEffect((SkPathEffect*)obj);
break;
case kRasterizer_PaintFlat:
paint->setRasterizer((SkRasterizer*)obj);
break;
case kShader_PaintFlat:
paint->setShader((SkShader*)obj);
break;
case kImageFilter_PaintFlat:
paint->setImageFilter((SkImageFilter*)obj);
break;
case kXfermode_PaintFlat:
paint->setXfermode((SkXfermode*)obj);
break;
default:
SkDEBUGFAIL("never gets here");
}
}
template <typename T> class SkRefCntTDArray : public SkTDArray<T> {
public:
~SkRefCntTDArray() { this->unrefAll(); }
};
class SkGPipeState : public SkBitmapHeapReader {
public:
SkGPipeState();
~SkGPipeState();
void setSilent(bool silent) {
fSilent = silent;
}
bool shouldDraw() {
return !fSilent;
}
void setFlags(unsigned flags) {
if (fFlags != flags) {
fFlags = flags;
this->updateReader();
}
}
unsigned getFlags() const {
return fFlags;
}
void setReader(SkOrderedReadBuffer* reader) {
fReader = reader;
this->updateReader();
}
const SkPaint& paint() const { return fPaint; }
SkPaint* editPaint() { return &fPaint; }
SkFlattenable* getFlat(unsigned index) const {
if (0 == index) {
return NULL;
}
return fFlatArray[index - 1];
}
void defFlattenable(PaintFlats pf, int index) {
index--;
SkFlattenable* obj = fReader->readFlattenable();
if (fFlatArray.count() == index) {
*fFlatArray.append() = obj;
} else {
SkSafeUnref(fFlatArray[index]);
fFlatArray[index] = obj;
}
}
void defFactory(const char* name) {
SkFlattenable::Factory factory = SkFlattenable::NameToFactory(name);
if (factory) {
SkASSERT(fFactoryArray.find(factory) < 0);
*fFactoryArray.append() = factory;
}
}
void addBitmap(int index) {
SkBitmap* bm;
if(fBitmaps.count() == index) {
bm = SkNEW(SkBitmap);
*fBitmaps.append() = bm;
} else {
bm = fBitmaps[index];
}
bm->unflatten(*fReader);
}
/**
* Override of SkBitmapHeapReader, so that SkOrderedReadBuffer can use
* these SkBitmaps for bitmap shaders.
*/
virtual SkBitmap* getBitmap(int32_t index) const SK_OVERRIDE {
return fBitmaps[index];
}
/**
* Needed to be a non-abstract subclass of SkBitmapHeapReader.
*/
virtual void releaseRef(int32_t) SK_OVERRIDE {}
void setSharedHeap(SkBitmapHeap* heap) {
SkASSERT(!shouldFlattenBitmaps(fFlags) || NULL == heap);
SkRefCnt_SafeAssign(fSharedHeap, heap);
this->updateReader();
}
SkBitmapHeap* getSharedHeap() const {
return fSharedHeap;
}
void addTypeface() {
size_t size = fReader->read32();
const void* data = fReader->skip(SkAlign4(size));
SkMemoryStream stream(data, size, false);
*fTypefaces.append() = SkTypeface::Deserialize(&stream);
}
void setTypeface(SkPaint* paint, unsigned id) {
paint->setTypeface(id ? fTypefaces[id - 1] : NULL);
}
private:
void updateReader() {
if (NULL == fReader) {
return;
}
bool crossProcess = SkToBool(fFlags & SkGPipeWriter::kCrossProcess_Flag);
fReader->setFlags(SkSetClearMask(fReader->getFlags(), crossProcess,
SkFlattenableReadBuffer::kCrossProcess_Flag));
if (crossProcess) {
fReader->setFactoryArray(&fFactoryArray);
} else {
fReader->setFactoryArray(NULL);
}
if (shouldFlattenBitmaps(fFlags)) {
fReader->setBitmapStorage(this);
} else {
fReader->setBitmapStorage(fSharedHeap);
}
}
SkOrderedReadBuffer* fReader;
SkPaint fPaint;
SkTDArray<SkFlattenable*> fFlatArray;
SkTDArray<SkTypeface*> fTypefaces;
SkTDArray<SkFlattenable::Factory> fFactoryArray;
SkTDArray<SkBitmap*> fBitmaps;
bool fSilent;
// Only used when sharing bitmaps with the writer.
SkBitmapHeap* fSharedHeap;
unsigned fFlags;
};
///////////////////////////////////////////////////////////////////////////////
template <typename T> const T* skip(SkReader32* reader, int count = 1) {
SkASSERT(count >= 0);
size_t size = sizeof(T) * count;
SkASSERT(SkAlign4(size) == size);
return reinterpret_cast<const T*>(reader->skip(size));
}
template <typename T> const T* skipAlign(SkReader32* reader, int count = 1) {
SkASSERT(count >= 0);
size_t size = SkAlign4(sizeof(T) * count);
return reinterpret_cast<const T*>(reader->skip(size));
}
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
static void clipPath_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
SkPath path;
reader->readPath(&path);
bool doAA = SkToBool(DrawOp_unpackFlags(op32) & kClip_HasAntiAlias_DrawOpFlag);
canvas->clipPath(path, (SkRegion::Op)DrawOp_unpackData(op32), doAA);
}
static void clipRegion_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
SkRegion rgn;
reader->readRegion(&rgn);
canvas->clipRegion(rgn, (SkRegion::Op)DrawOp_unpackData(op32));
}
static void clipRect_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
const SkRect* rect = skip<SkRect>(reader);
bool doAA = SkToBool(DrawOp_unpackFlags(op32) & kClip_HasAntiAlias_DrawOpFlag);
canvas->clipRect(*rect, (SkRegion::Op)DrawOp_unpackData(op32), doAA);
}
static void clipRRect_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
SkRRect rrect;
reader->readRRect(&rrect);
bool doAA = SkToBool(DrawOp_unpackFlags(op32) & kClip_HasAntiAlias_DrawOpFlag);
canvas->clipRRect(rrect, (SkRegion::Op)DrawOp_unpackData(op32), doAA);
}
///////////////////////////////////////////////////////////////////////////////
static void setMatrix_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
SkMatrix matrix;
reader->readMatrix(&matrix);
canvas->setMatrix(matrix);
}
static void concat_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
SkMatrix matrix;
reader->readMatrix(&matrix);
canvas->concat(matrix);
}
static void scale_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
const SkScalar* param = skip<SkScalar>(reader, 2);
canvas->scale(param[0], param[1]);
}
static void skew_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
const SkScalar* param = skip<SkScalar>(reader, 2);
canvas->skew(param[0], param[1]);
}
static void rotate_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
canvas->rotate(reader->readScalar());
}
static void translate_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
const SkScalar* param = skip<SkScalar>(reader, 2);
canvas->translate(param[0], param[1]);
}
///////////////////////////////////////////////////////////////////////////////
static void save_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
canvas->save((SkCanvas::SaveFlags)DrawOp_unpackData(op32));
}
static void saveLayer_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
unsigned flags = DrawOp_unpackFlags(op32);
SkCanvas::SaveFlags saveFlags = (SkCanvas::SaveFlags)DrawOp_unpackData(op32);
const SkRect* bounds = NULL;
if (flags & kSaveLayer_HasBounds_DrawOpFlag) {
bounds = skip<SkRect>(reader);
}
const SkPaint* paint = NULL;
if (flags & kSaveLayer_HasPaint_DrawOpFlag) {
paint = &state->paint();
}
canvas->saveLayer(bounds, paint, saveFlags);
}
static void restore_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
canvas->restore();
}
///////////////////////////////////////////////////////////////////////////////
static void drawClear_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
SkColor color = 0;
if (DrawOp_unpackFlags(op32) & kClear_HasColor_DrawOpFlag) {
color = reader->readU32();
}
canvas->clear(color);
}
static void drawPaint_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
if (state->shouldDraw()) {
canvas->drawPaint(state->paint());
}
}
static void drawPoints_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
SkCanvas::PointMode mode = (SkCanvas::PointMode)DrawOp_unpackFlags(op32);
size_t count = reader->readU32();
const SkPoint* pts = skip<SkPoint>(reader, count);
if (state->shouldDraw()) {
canvas->drawPoints(mode, count, pts, state->paint());
}
}
static void drawOval_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
const SkRect* rect = skip<SkRect>(reader);
if (state->shouldDraw()) {
canvas->drawOval(*rect, state->paint());
}
}
static void drawRect_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
const SkRect* rect = skip<SkRect>(reader);
if (state->shouldDraw()) {
canvas->drawRect(*rect, state->paint());
}
}
static void drawRRect_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
SkRRect rrect;
reader->readRRect(&rrect);
if (state->shouldDraw()) {
canvas->drawRRect(rrect, state->paint());
}
}
static void drawPath_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
SkPath path;
reader->readPath(&path);
if (state->shouldDraw()) {
canvas->drawPath(path, state->paint());
}
}
static void drawVertices_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
unsigned flags = DrawOp_unpackFlags(op32);
SkCanvas::VertexMode mode = (SkCanvas::VertexMode)reader->readU32();
int vertexCount = reader->readU32();
const SkPoint* verts = skip<SkPoint>(reader, vertexCount);
const SkPoint* texs = NULL;
if (flags & kDrawVertices_HasTexs_DrawOpFlag) {
texs = skip<SkPoint>(reader, vertexCount);
}
const SkColor* colors = NULL;
if (flags & kDrawVertices_HasColors_DrawOpFlag) {
colors = skip<SkColor>(reader, vertexCount);
}
// TODO: flatten/unflatten xfermodes
SkXfermode* xfer = NULL;
int indexCount = 0;
const uint16_t* indices = NULL;
if (flags & kDrawVertices_HasIndices_DrawOpFlag) {
indexCount = reader->readU32();
indices = skipAlign<uint16_t>(reader, indexCount);
}
if (state->shouldDraw()) {
canvas->drawVertices(mode, vertexCount, verts, texs, colors, xfer,
indices, indexCount, state->paint());
}
}
///////////////////////////////////////////////////////////////////////////////
static void drawText_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
size_t len = reader->readU32();
const void* text = reader->skip(SkAlign4(len));
const SkScalar* xy = skip<SkScalar>(reader, 2);
if (state->shouldDraw()) {
canvas->drawText(text, len, xy[0], xy[1], state->paint());
}
}
static void drawPosText_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
size_t len = reader->readU32();
const void* text = reader->skip(SkAlign4(len));
size_t posCount = reader->readU32(); // compute by our writer
const SkPoint* pos = skip<SkPoint>(reader, posCount);
if (state->shouldDraw()) {
canvas->drawPosText(text, len, pos, state->paint());
}
}
static void drawPosTextH_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
size_t len = reader->readU32();
const void* text = reader->skip(SkAlign4(len));
size_t posCount = reader->readU32(); // compute by our writer
const SkScalar* xpos = skip<SkScalar>(reader, posCount);
SkScalar constY = reader->readScalar();
if (state->shouldDraw()) {
canvas->drawPosTextH(text, len, xpos, constY, state->paint());
}
}
static void drawTextOnPath_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
size_t len = reader->readU32();
const void* text = reader->skip(SkAlign4(len));
SkPath path;
reader->readPath(&path);
SkMatrix matrixStorage;
const SkMatrix* matrix = NULL;
if (DrawOp_unpackFlags(op32) & kDrawTextOnPath_HasMatrix_DrawOpFlag) {
reader->readMatrix(&matrixStorage);
matrix = &matrixStorage;
}
if (state->shouldDraw()) {
canvas->drawTextOnPath(text, len, path, matrix, state->paint());
}
}
///////////////////////////////////////////////////////////////////////////////
class BitmapHolder : SkNoncopyable {
public:
BitmapHolder(SkReader32* reader, uint32_t op32, SkGPipeState* state);
~BitmapHolder() {
if (fHeapEntry != NULL) {
fHeapEntry->releaseRef();
}
}
const SkBitmap* getBitmap() {
return fBitmap;
}
private:
SkBitmapHeapEntry* fHeapEntry;
const SkBitmap* fBitmap;
SkBitmap fBitmapStorage;
};
BitmapHolder::BitmapHolder(SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
const unsigned flags = state->getFlags();
const unsigned index = DrawOp_unpackData(op32);
if (shouldFlattenBitmaps(flags)) {
fHeapEntry = NULL;
fBitmap = state->getBitmap(index);
} else {
SkBitmapHeapEntry* entry = state->getSharedHeap()->getEntry(index);
if (SkToBool(flags & SkGPipeWriter::kSimultaneousReaders_Flag)) {
// Make a shallow copy for thread safety. Each thread will point to the same SkPixelRef,
// which is thread safe.
fBitmapStorage = *entry->getBitmap();
fBitmap = &fBitmapStorage;
// Release the ref on the bitmap now, since we made our own copy.
entry->releaseRef();
fHeapEntry = NULL;
} else {
SkASSERT(!shouldFlattenBitmaps(flags));
SkASSERT(!SkToBool(flags & SkGPipeWriter::kSimultaneousReaders_Flag));
fHeapEntry = entry;
fBitmap = fHeapEntry->getBitmap();
}
}
}
static void drawBitmap_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
BitmapHolder holder(reader, op32, state);
bool hasPaint = SkToBool(DrawOp_unpackFlags(op32) & kDrawBitmap_HasPaint_DrawOpFlag);
SkScalar left = reader->readScalar();
SkScalar top = reader->readScalar();
const SkBitmap* bitmap = holder.getBitmap();
if (state->shouldDraw()) {
canvas->drawBitmap(*bitmap, left, top, hasPaint ? &state->paint() : NULL);
}
}
static void drawBitmapMatrix_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
BitmapHolder holder(reader, op32, state);
bool hasPaint = SkToBool(DrawOp_unpackFlags(op32) & kDrawBitmap_HasPaint_DrawOpFlag);
SkMatrix matrix;
reader->readMatrix(&matrix);
const SkBitmap* bitmap = holder.getBitmap();
if (state->shouldDraw()) {
canvas->drawBitmapMatrix(*bitmap, matrix,
hasPaint ? &state->paint() : NULL);
}
}
static void drawBitmapNine_rp(SkCanvas* canvas, SkReader32* reader,
uint32_t op32, SkGPipeState* state) {
BitmapHolder holder(reader, op32, state);
bool hasPaint = SkToBool(DrawOp_unpackFlags(op32) & kDrawBitmap_HasPaint_DrawOpFlag);
const SkIRect* center = skip<SkIRect>(reader);
const SkRect* dst = skip<SkRect>(reader);
const SkBitmap* bitmap = holder.getBitmap();
if (state->shouldDraw()) {
canvas->drawBitmapNine(*bitmap, *center, *dst,
hasPaint ? &state->paint() : NULL);
}
}
static void drawBitmapRect_rp(SkCanvas* canvas, SkReader32* reader,
uint32_t op32, SkGPipeState* state) {
BitmapHolder holder(reader, op32, state);
unsigned flags = DrawOp_unpackFlags(op32);
bool hasPaint = SkToBool(flags & kDrawBitmap_HasPaint_DrawOpFlag);
bool hasSrc = SkToBool(flags & kDrawBitmap_HasSrcRect_DrawOpFlag);
const SkRect* src;
if (hasSrc) {
src = skip<SkRect>(reader);
} else {
src = NULL;
}
const SkRect* dst = skip<SkRect>(reader);
const SkBitmap* bitmap = holder.getBitmap();
if (state->shouldDraw()) {
canvas->drawBitmapRectToRect(*bitmap, src, *dst, hasPaint ? &state->paint() : NULL);
}
}
static void drawSprite_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
BitmapHolder holder(reader, op32, state);
bool hasPaint = SkToBool(DrawOp_unpackFlags(op32) & kDrawBitmap_HasPaint_DrawOpFlag);
const SkIPoint* point = skip<SkIPoint>(reader);
const SkBitmap* bitmap = holder.getBitmap();
if (state->shouldDraw()) {
canvas->drawSprite(*bitmap, point->fX, point->fY, hasPaint ? &state->paint() : NULL);
}
}
///////////////////////////////////////////////////////////////////////////////
static void drawData_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
// since we don't have a paint, we can use data for our (small) sizes
size_t size = DrawOp_unpackData(op32);
if (0 == size) {
size = reader->readU32();
}
const void* data = reader->skip(SkAlign4(size));
if (state->shouldDraw()) {
canvas->drawData(data, size);
}
}
static void drawPicture_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
UNIMPLEMENTED
}
///////////////////////////////////////////////////////////////////////////////
static void paintOp_rp(SkCanvas*, SkReader32* reader, uint32_t op32,
SkGPipeState* state) {
size_t offset = reader->offset();
size_t stop = offset + PaintOp_unpackData(op32);
SkPaint* p = state->editPaint();
do {
uint32_t p32 = reader->readU32();
unsigned op = PaintOp_unpackOp(p32);
unsigned data = PaintOp_unpackData(p32);
// SkDebugf(" read %08X op=%d flags=%d data=%d\n", p32, op, done, data);
switch (op) {
case kReset_PaintOp: p->reset(); break;
case kFlags_PaintOp: p->setFlags(data); break;
case kColor_PaintOp: p->setColor(reader->readU32()); break;
case kStyle_PaintOp: p->setStyle((SkPaint::Style)data); break;
case kJoin_PaintOp: p->setStrokeJoin((SkPaint::Join)data); break;
case kCap_PaintOp: p->setStrokeCap((SkPaint::Cap)data); break;
case kWidth_PaintOp: p->setStrokeWidth(reader->readScalar()); break;
case kMiter_PaintOp: p->setStrokeMiter(reader->readScalar()); break;
case kEncoding_PaintOp:
p->setTextEncoding((SkPaint::TextEncoding)data);
break;
case kHinting_PaintOp: p->setHinting((SkPaint::Hinting)data); break;
case kAlign_PaintOp: p->setTextAlign((SkPaint::Align)data); break;
case kTextSize_PaintOp: p->setTextSize(reader->readScalar()); break;
case kTextScaleX_PaintOp: p->setTextScaleX(reader->readScalar()); break;
case kTextSkewX_PaintOp: p->setTextSkewX(reader->readScalar()); break;
case kFlatIndex_PaintOp: {
PaintFlats pf = (PaintFlats)PaintOp_unpackFlags(p32);
unsigned index = data;
set_paintflat(p, state->getFlat(index), pf);
break;
}
case kTypeface_PaintOp:
SkASSERT(SkToBool(state->getFlags() &
SkGPipeWriter::kCrossProcess_Flag));
state->setTypeface(p, data); break;
default: SkDEBUGFAIL("bad paintop"); return;
}
SkASSERT(reader->offset() <= stop);
} while (reader->offset() < stop);
}
static void typeface_rp(SkCanvas*, SkReader32* reader, uint32_t,
SkGPipeState* state) {
SkASSERT(!SkToBool(state->getFlags() & SkGPipeWriter::kCrossProcess_Flag));
SkPaint* p = state->editPaint();
p->setTypeface(static_cast<SkTypeface*>(reader->readPtr()));
}
///////////////////////////////////////////////////////////////////////////////
static void def_Typeface_rp(SkCanvas*, SkReader32*, uint32_t, SkGPipeState* state) {
state->addTypeface();
}
static void def_PaintFlat_rp(SkCanvas*, SkReader32*, uint32_t op32,
SkGPipeState* state) {
PaintFlats pf = (PaintFlats)DrawOp_unpackFlags(op32);
unsigned index = DrawOp_unpackData(op32);
state->defFlattenable(pf, index);
}
static void def_Bitmap_rp(SkCanvas*, SkReader32*, uint32_t op32,
SkGPipeState* state) {
unsigned index = DrawOp_unpackData(op32);
state->addBitmap(index);
}
static void def_Factory_rp(SkCanvas*, SkReader32* reader, uint32_t,
SkGPipeState* state) {
state->defFactory(reader->readString());
}
///////////////////////////////////////////////////////////////////////////////
static void skip_rp(SkCanvas*, SkReader32* reader, uint32_t op32, SkGPipeState*) {
size_t bytes = DrawOp_unpackData(op32);
(void)reader->skip(bytes);
}
static void reportFlags_rp(SkCanvas*, SkReader32*, uint32_t op32,
SkGPipeState* state) {
unsigned flags = DrawOp_unpackFlags(op32);
state->setFlags(flags);
}
static void shareBitmapHeap_rp(SkCanvas*, SkReader32* reader, uint32_t,
SkGPipeState* state) {
state->setSharedHeap(static_cast<SkBitmapHeap*>(reader->readPtr()));
}
static void done_rp(SkCanvas*, SkReader32*, uint32_t, SkGPipeState*) {}
typedef void (*ReadProc)(SkCanvas*, SkReader32*, uint32_t op32, SkGPipeState*);
static const ReadProc gReadTable[] = {
skip_rp,
clipPath_rp,
clipRegion_rp,
clipRect_rp,
clipRRect_rp,
concat_rp,
drawBitmap_rp,
drawBitmapMatrix_rp,
drawBitmapNine_rp,
drawBitmapRect_rp,
drawClear_rp,
drawData_rp,
drawOval_rp,
drawPaint_rp,
drawPath_rp,
drawPicture_rp,
drawPoints_rp,
drawPosText_rp,
drawPosTextH_rp,
drawRect_rp,
drawRRect_rp,
drawSprite_rp,
drawText_rp,
drawTextOnPath_rp,
drawVertices_rp,
restore_rp,
rotate_rp,
save_rp,
saveLayer_rp,
scale_rp,
setMatrix_rp,
skew_rp,
translate_rp,
paintOp_rp,
typeface_rp,
def_Typeface_rp,
def_PaintFlat_rp,
def_Bitmap_rp,
def_Factory_rp,
reportFlags_rp,
shareBitmapHeap_rp,
done_rp
};
///////////////////////////////////////////////////////////////////////////////
SkGPipeState::SkGPipeState()
: fReader(0)
, fSilent(false)
, fSharedHeap(NULL)
, fFlags(0) {
}
SkGPipeState::~SkGPipeState() {
fTypefaces.safeUnrefAll();
fFlatArray.safeUnrefAll();
fBitmaps.deleteAll();
SkSafeUnref(fSharedHeap);
}
///////////////////////////////////////////////////////////////////////////////
#include "SkGPipe.h"
SkGPipeReader::SkGPipeReader() {
fCanvas = NULL;
fState = NULL;
}
SkGPipeReader::SkGPipeReader(SkCanvas* target) {
fCanvas = NULL;
this->setCanvas(target);
fState = NULL;
}
void SkGPipeReader::setCanvas(SkCanvas *target) {
SkRefCnt_SafeAssign(fCanvas, target);
}
SkGPipeReader::~SkGPipeReader() {
SkSafeUnref(fCanvas);
delete fState;
}
SkGPipeReader::Status SkGPipeReader::playback(const void* data, size_t length,
uint32_t playbackFlags, size_t* bytesRead) {
if (NULL == fCanvas) {
return kError_Status;
}
if (NULL == fState) {
fState = new SkGPipeState;
}
fState->setSilent(playbackFlags & kSilent_PlaybackFlag);
SkASSERT(SK_ARRAY_COUNT(gReadTable) == (kDone_DrawOp + 1));
const ReadProc* table = gReadTable;
SkOrderedReadBuffer reader(data, length);
SkCanvas* canvas = fCanvas;
Status status = kEOF_Status;
fState->setReader(&reader);
while (!reader.eof()) {
uint32_t op32 = reader.readUInt();
unsigned op = DrawOp_unpackOp(op32);
// SkDEBUGCODE(DrawOps drawOp = (DrawOps)op;)
if (op >= SK_ARRAY_COUNT(gReadTable)) {
SkDebugf("---- bad op during GPipeState::playback\n");
status = kError_Status;
break;
}
if (kDone_DrawOp == op) {
status = kDone_Status;
break;
}
table[op](canvas, reader.getReader32(), op32, fState);
if ((playbackFlags & kReadAtom_PlaybackFlag) &&
(table[op] != paintOp_rp &&
table[op] != def_Typeface_rp &&
table[op] != def_PaintFlat_rp &&
table[op] != def_Bitmap_rp
)) {
status = kReadAtom_Status;
break;
}
}
if (bytesRead) {
*bytesRead = reader.offset();
}
return status;
}