static int Reserve (TRI_string_buffer_t * self, const size_t size) {
char* ptr;
if (size < 1) {
return TRI_ERROR_NO_ERROR;
}
if (size > Remaining(self)) {
ptrdiff_t off;
size_t len;
off = self->_current - self->_buffer;
len = (size_t) (1.2 * (self->_len + size));
assert(len > 0);
ptr = TRI_Reallocate(self->_memoryZone, self->_buffer, len + 1);
if (ptr == NULL) {
return TRI_ERROR_OUT_OF_MEMORY;
}
self->_buffer = ptr;
self->_len = len;
self->_current = self->_buffer + off;
memset(self->_current, 0, Remaining(self) + 1);
}
return TRI_ERROR_NO_ERROR;
}
QVariant DownloadTable::dataDisplayRole(const QModelIndex &index) const {
switch(index.column()) {
case ColumnFile:
return downloadManager->downloadAt(index.row()).file;
case ColumnStatus:
return DownloadStatus2String(downloadManager->downloadAt(index.row()).status);
case ColumnSize:
if(downloadManager->downloadAt(index.row()).size != 0)
return B2String(downloadManager->downloadAt(index.row()).size);
else return "";
case ColumnProgress:
if(downloadManager->downloadAt(index.row()).size != 0)
return tr("%1 %").arg((100 * downloadManager->downloadAt(index.row()).progress) / (float)downloadManager->downloadAt(index.row()).size, 0, '0', 2);
return tr("0.00 %");
case ColumnSpeed:
if(downloadManager->downloadAt(index.row()).status == net::StatInProgress)
return B2String(downloadManager->downloadAt(index.row()).speed).append("/s");
return "";
case ColumnRemaining:
if(downloadManager->downloadAt(index.row()).status == net::StatInProgress)
return Remaining(Remaining(downloadManager->downloadAt(index.row()).progress, downloadManager->downloadAt(index.row()).size, downloadManager->downloadAt(index.row()).speed));
return "";
case ColumnUrl:
return downloadManager->downloadAt(index.row()).url;
case ColumnPath:
return downloadManager->downloadAt(index.row()).path;
}
return QVariant();
}
std::string BinaryFP::ReadString()
{
std::string str;
if (Remaining() <= 0)
return str;
char c=fgetc(m_FP);
while (c!=0 && Remaining()>0) {
str+=c;
c=fgetc(m_FP);
}
return str;
}
QVariant DownloadTable::dataUserRole(const QModelIndex &index) const {
switch(index.column()) {
case ColumnFile:
return downloadManager->downloadAt(index.row()).file;
case ColumnStatus:
return downloadManager->downloadAt(index.row()).status;
case ColumnSize:
return downloadManager->downloadAt(index.row()).size;
case ColumnProgress:
if(downloadManager->downloadAt(index.row()).size == 0)
return 0;
else
return downloadManager->downloadAt(index.row()).progress/(qreal)downloadManager->downloadAt(index.row()).size;
case ColumnSpeed:
return downloadManager->downloadAt(index.row()).speed;
case ColumnRemaining:
return Remaining(
downloadManager->downloadAt(index.row()).progress,
downloadManager->downloadAt(index.row()).size,
downloadManager->downloadAt(index.row()).speed);
case ColumnUrl:
return downloadManager->downloadAt(index.row()).url;
case ColumnPath:
return downloadManager->downloadAt(index.row()).path;
}
return QVariant();
}
int BinaryFP::Read(unsigned char* data, size_t count)
{
size_t num = Remaining();
if (num < count)
return fread(data, sizeof(unsigned char), num, m_FP);
else
return fread(data, sizeof(unsigned char), count, m_FP);
}
unsigned short BinaryFP::ReadUInt16()
{
if (Remaining()/sizeof(unsigned short) == 0) return 0;
unsigned short s;
//TODO endian
s = ((unsigned char)fgetc(m_FP));
s |= ((unsigned char)fgetc(m_FP)) << 8;
return s;
}
float BinaryFP::ReadFloat()
{
if (Remaining()/sizeof(unsigned int) == 0) return 0;
unsigned int i;
//TODO endian
i = ((unsigned char)fgetc(m_FP));
i |= ((unsigned char)fgetc(m_FP)) << 8;
i |= ((unsigned char)fgetc(m_FP)) << 16;
i |= ((unsigned char)fgetc(m_FP)) << 24;
return *((float*)(&i));
}
unsigned int BinaryFP::ReadUInt32()
{
if (Remaining()/sizeof(unsigned int) == 0) return 0;
unsigned int i;
//TODO endian
i = ((unsigned char)fgetc(m_FP));
i |= ((unsigned char)fgetc(m_FP)) << 8;
i |= ((unsigned char)fgetc(m_FP)) << 16;
i |= ((unsigned char)fgetc(m_FP)) << 24;
return i;
}
bool CExtradataParser::NextMPEGStartCode(BYTE &code)
{
BitByteAlign();
DWORD dw = (DWORD)-1;
do
{
if(!Remaining()) return false;
dw = (dw << 8) | (BYTE)BitRead(8);
}
while((dw&0xffffff00) != 0x00000100);
code = (BYTE)(dw&0xff);
return true;
}
MessageType_t NetworkReader::ReadMessageType()
{
if (Remaining() >= sizeof(MessageType_t))
{
MessageType_t output;
ClientSafeRead<MessageType_t>((char*)&output, &cursor, swapped);
return output;
}
else
{
return 0;
}
}
float NetworkReader::ReadSingle()
{
if (Remaining() >= 4)
{
float output;
ClientSafeRead<float>((char*)&output, &cursor, swapped);
return output;
}
else
{
return 0;
}
}
uint32_t NetworkReader::ReadUint32()
{
if (Remaining() >= 4)
{
uint32_t output;
ClientSafeRead<uint32_t>((char*)&output, &cursor, swapped);
return output;
}
else
{
return 0;
}
}
int8_t NetworkReader::ReadInt8()
{
if (Remaining() >= 1)
{
int8_t output;
ClientSafeRead<int8_t>((char*)&output, &cursor, swapped);
return output;
}
else
{
return 0;
}
}
int CzDataInput::getUBytes(unsigned char *data, int count)
{
if (EndOfFile)
return 0;
int rem = Remaining();
if (count > rem)
{
count = rem;
EndOfFile = true;
}
memcpy(data, &Data[Position], count);
Position += count;
if (Position >= Length)
EndOfFile = true;
return count;
}
size_t CByteParser::Pos() const
{
return (size_t)(m_pEnd - m_pData - Remaining());
}
size_t CExtradataParser::ParseMPEGSequenceHeader(BYTE *pTarget)
{
BYTE id = 0;
while(Remaining() && id != 0xb3) {
if(!NextMPEGStartCode(id)) {
return 0;
}
}
if(id != 0xb3) {
return 0;
}
size_t shpos = Pos() - 4;
BitRead(12); // Width
BitRead(12); // Height
BitRead(4); // AR
BitRead(4); // FPS
BitRead(18); // Bitrate
MARKER;
BitRead(10); // VBV
BitRead(1); // Constrained Flag
// intra quantisizer matrix
if(BitRead(1)) {
for (uint8_t i = 0; i < 64; i++) {
BitRead(8);
}
}
// non-intra quantisizer matrix
if(BitRead(1)) {
for (uint8_t i = 0; i < 64; i++) {
BitRead(8);
}
}
size_t shlen = Pos() - shpos;
size_t shextpos = 0;
size_t shextlen = 0;
if(NextMPEGStartCode(id) && id == 0xb5) { // sequence header ext
shextpos = Pos() - 4;
int startcode = BitRead(4); // Start Code Id; TODO: DIfferent start code ids mean different length of da2a
ASSERT(startcode == 1);
BitRead(1); // Profile Level Escape
BitRead(3); // Profile
BitRead(4); // Level
BitRead(1); // Progressive
BitRead(2); // Chroma
BitRead(2); // Width Extension
BitRead(2); // Height Extension
BitRead(12); // Bitrate Extension
MARKER;
BitRead(8); // VBV Buffer Size Extension
BitRead(1); // Low Delay
BitRead(2); // FPS Extension n
BitRead(5); // FPS Extension d
shextlen = Pos() - shextpos;
}
memcpy(pTarget, Start()+shpos, shlen);
if (shextpos) {
memcpy(pTarget+shlen, Start()+shextpos, shextlen);
}
return shlen + shextlen;
}
unsigned char BinaryFP::ReadUInt8()
{
if (Remaining() == 0) return 0;
return (unsigned char)fgetc(m_FP);
}
