virtual void onDrawContent(SkCanvas* canvas) {
if (fCurrMatrix != canvas->getTotalMatrix()) {
fTotalBytesRead = 0;
fCurrMatrix = canvas->getTotalMatrix();
}
fServer->acceptConnections();
if (fServer->readPacket(readData, this) > 0) {
fServer->resumeWrite();
}
else {
fServer->suspendWrite();
}
size_t bytesRead;
SkGPipeReader::Status stat;
SkCanvas bufferCanvas(fBase);
SkCanvas* tempCanvas;
while (fTotalBytesRead < fData.count()) {
if (fVector) {
tempCanvas = canvas;
} else {
tempCanvas = &bufferCanvas;
}
SkGPipeReader reader(tempCanvas);
stat = reader.playback(fData.begin() + fTotalBytesRead,
fData.count() - fTotalBytesRead,
&bytesRead);
SkASSERT(SkGPipeReader::kError_Status != stat);
fTotalBytesRead += bytesRead;
}
if (fVector) {
fTotalBytesRead = 0;
} else {
canvas->drawBitmap(fBase, 0, 0, NULL);
}
size_t totalBytesRead = 0;
while (totalBytesRead < fBuffer.count()) {
SkGPipeReader reader(canvas);
stat = reader.playback(fBuffer.begin() + totalBytesRead,
fBuffer.count() - totalBytesRead,
&bytesRead);
SkASSERT(SkGPipeReader::kError_Status != stat);
totalBytesRead += bytesRead;
}
fServer->writePacket(fBuffer.begin(), fBuffer.count(),
SkSocket::kPipeReplace_type);
this->inval(NULL);
}
void ReaderView::draw(SkCanvas* canvas) {
canvas->drawColor(fBGColor);
SkAutoCanvasRestore acr(canvas, true);
//Create a temporary canvas and reader object that draws into the back
//bitmap so that the incremental changes or incomplete reads are not shown
//on screen
SkCanvas bufferCanvas(fBufferBitmaps[fBack]);
SkGPipeReader reader(&bufferCanvas);
//The file specified by FILE_PATH MUST exist
FILE* f = fopen(FILE_PATH, "rb");
SkASSERT(f != NULL);
fseek(f, 0, SEEK_END);
int size = ftell(f) * sizeof(char);
if (size <= fFilePos) {
fFilePos = 0;
}
//Resume from the last read location
fseek(f, fFilePos, SEEK_SET);
int toBeRead = size - fFilePos;
if (size > 0 && toBeRead > 0) {
void* block = sk_malloc_throw(toBeRead);
fread(block, 1, toBeRead, f);
size_t bytesRead;
SkGPipeReader::Status fStatus = reader.playback(block, toBeRead, &bytesRead);
SkASSERT(SkGPipeReader::kError_Status != fStatus);
SkASSERT(toBeRead >= bytesRead);
//if the reader reaches a done verb, a frame is complete.
//Update the file location and swap the front and back bitmaps to show
//the new frame
if (SkGPipeReader::kDone_Status == fStatus) {
fFilePos += bytesRead;
fFront = fFront ^ 0x1;
fBack = fBack ^ 0x1;
}
sk_free(block);
}
fclose(f);
//the front bitmap is always drawn
canvas->drawBitmap(fBufferBitmaps[fFront], 0, 0, NULL);
this->inval(NULL);
}
virtual void onDrawContent(SkCanvas* canvas) {
if (fSocket) {
if (fSocket->isConnected()) {
if (fSync) {
int count = 0;
while (fSocket->readPacket(readData, this) > 0 &&
count < MAX_READ_PER_FRAME)
++count;
}
else
fSocket->readPacket(readData, this);
}
else
fSocket->connectToServer();
}
size_t bytesRead = 0;
SkGPipeReader::Status status;
SkCanvas bufferCanvas(fBase);
SkCanvas* tempCanvas;
while (fTotalBytesRead < fData.count()) {
if (fVector)
tempCanvas = canvas;
else
tempCanvas = &bufferCanvas;
SkGPipeReader reader(tempCanvas);
status = reader.playback(fData.begin() + fTotalBytesRead,
fData.count() - fTotalBytesRead,
&bytesRead);
SkASSERT(SkGPipeReader::kError_Status != status);
fTotalBytesRead += bytesRead;
}
if (fVector)
fTotalBytesRead = 0;
else
canvas->drawBitmap(fBase, 0, 0, NULL);
size_t totalBytesRead = 0;
while (totalBytesRead < fBuffer.count()) {
SkGPipeReader reader(canvas);
status = reader.playback(fBuffer.begin() + totalBytesRead,
fBuffer.count() - totalBytesRead,
&bytesRead);
SkASSERT(SkGPipeReader::kError_Status != status);
totalBytesRead += bytesRead;
}
SkNetPipeController controller(canvas);
SkGPipeWriter writer;
SkCanvas* writerCanvas = writer.startRecording(&controller,
SkGPipeWriter::kCrossProcess_Flag);
//controller.disablePlayback();
SkPaint p;
p.setColor(fPalette->getColor());
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(fBrushSize);
p.setStrokeCap(SkPaint::kRound_Cap);
p.setStrokeJoin(SkPaint::kRound_Join);
p.setAntiAlias(fAA);
p.setPathEffect(new SkCornerPathEffect(55))->unref();
writerCanvas->drawPath(fCurrLine, p);
writer.endRecording();
controller.writeToSocket(fSocket, fType);
if (fType == SkSocket::kPipeAppend_type && fSocket) {
fSocket->suspendWrite();
fCurrLine.reset();
}
this->inval(NULL);
}
