//------------------------------------------------------------------------
bool PresetFile::writeChunkList ()
{
// Update list offset
TSize pos = 0;
stream->tell (&pos);
if (!(seekTo (kListOffsetPos) &&
writeSize (pos) &&
seekTo (pos)))
return false;
// Write list
if (!writeID (getChunkID (kChunkList)))
return false;
if (!writeInt32 (entryCount))
return false;
for (int32 i = 0; i < entryCount; i++)
{
Entry& e = entries[i];
if (!(writeID (e.id) &&
writeSize (e.offset) &&
writeSize (e.size)))
return false;
}
return true;
}
bool VTTScanner::scanFloat(float& number)
{
Run integerRun = collectWhile<isASCIIDigit>();
seekTo(integerRun.end());
Run decimalRun(getPosition(), getPosition(), m_is8Bit);
if (scan('.')) {
decimalRun = collectWhile<isASCIIDigit>();
seekTo(decimalRun.end());
}
// At least one digit required.
if (integerRun.isEmpty() && decimalRun.isEmpty()) {
// Restore to starting position.
seekTo(integerRun.start());
return false;
}
size_t lengthOfFloat = Run(integerRun.start(), getPosition(), m_is8Bit).length();
bool validNumber;
if (m_is8Bit)
number = charactersToFloat(integerRun.start(), lengthOfFloat, &validNumber);
else
number = charactersToFloat(reinterpret_cast<const UChar*>(integerRun.start()), lengthOfFloat, &validNumber);
if (!validNumber)
number = std::numeric_limits<float>::max();
return true;
}
long KFile::getFileLen()
{
long lVal = getFilePos();
seekTo(0, KFile::KFILE_END);
long fileLen = getFilePos();
seekTo(lVal, KFILE_BEGIN);
return fileLen;
}
bool
seekToPathStart() {
if(!seekTo("<path")) {
// printf("No <path> tag");
return false;
}
if(!seekTo(" d=\"")) {
// printf("No d=\" in path tag");
return false;
}
return true;
}
int KFile::getAllFileData(char* pFileKData)
{
int iRead = 0;
long fileLen = getFileLen();
seekTo(0, KFILE_BEGIN);
while (iRead < fileLen)
{
int iReaded = 0;
if ((iReaded = read((unsigned char*) pFileKData + iRead, 2048)) > 0)
{
iRead += iReaded;
}
else
{
break;
}
}
if (iRead != fileLen)
{
delete[] pFileKData;
return -1;
}
else
{
return fileLen;
}
}
void Logstalgia::init() {
debugLog("init called\n");
ipSummarizer = new Summarizer(fontSmall, 2, 40, 0, 2.0f);
reset();
readLog();
//add default groups
if(summGroups.size()==0) {
//images - file is under images or
addGroup("CSS", "\\.css\\b", 15);
addGroup("Script", "\\.js\\b", 15);
addGroup("Images", "/images/|\\.(jpe?g|gif|bmp|tga|ico|png)\\b", 20);
}
//always fill remaining space with Misc, (if there is some)
if(remaining_space>50) {
addGroup(summGroups.size()>0 ? "Misc" : "", ".*");
}
SDL_ShowCursor(false);
//set start position
if(gStartPosition > 0.0 && gStartPosition < 1.0) {
seekTo(gStartPosition);
}
}
bool MediaPlayer::setCapabilityValue( MediaPlayer::Capability cap, int value)
{
switch ( cap )
{
case MediaPlayer::CapChangeVolume:
if ( m_gst_audio_volume )
{
g_object_set( G_OBJECT(m_gst_audio_volume), "volume", (double) value / 100, NULL );
return true;
}
break;
case MediaPlayer::CapChangePitch:
return adjustPitch( value );
case MediaPlayer::CapChangeTempo:
// Let's spread it to 0.75 ... +1.25
m_tempoRate = (value / 200.0) + 0.75;
position();
seekTo( m_lastKnownPosition );
break;
case MediaPlayer::CapVoiceRemoval:
return toggleKaraokeSplitter( value );
}
return false;
}
void Logstalgia::init() {
ipSummarizer = new Summarizer(fontSmall, 100, 2.0f);
ipSummarizer->setSize(2, 40, 0);
reset();
readLog();
//add default groups
if(summarizers.empty()) {
//images - file is under images or
addGroup("URI", "CSS", "(?i)\\.css\\b", 15);
addGroup("URI", "Script", "(?i)\\.js\\b", 15);
addGroup("URI", "Images", "(?i)/images/|\\.(jpe?g|gif|bmp|tga|ico|png)\\b", 20);
}
//always fill remaining space with Misc, (if there is some)
if(remaining_space>50) {
addGroup("URI", "Misc", ".*");
}
resizeGroups();
SDL_ShowCursor(false);
//set start position
if(settings.start_position > 0.0 && settings.start_position < 1.0) {
seekTo(settings.start_position);
}
// show slider so user knows its there unless recording
if(frameExporter==0) slider.show();
}
bool
MatrixFile::haveSetColumnAt(size_t x) const
{
if (m_mode == WriteOnly) {
return m_setColumns->get(x);
}
if (m_readyToReadColumn >= 0 &&
size_t(m_readyToReadColumn) == x) return true;
Profiler profiler("MatrixFile::haveSetColumnAt");
#ifdef DEBUG_MATRIX_FILE_READ_SET
std::cerr << "MatrixFile[" << m_fd << "]::haveSetColumnAt(" << x << ")" << std::endl;
// std::cerr << ".";
#endif
unsigned char set = 0;
if (!seekTo(x)) {
std::cerr << "ERROR: MatrixFile::haveSetColumnAt(" << x << "): Seek failed" << std::endl;
throw FileOperationFailed(m_fileName, "seek");
}
ssize_t r = -1;
r = ::read(m_fd, &set, 1);
if (r < 0) {
::perror("MatrixFile::haveSetColumnAt: read failed");
throw FileReadFailed(m_fileName);
}
if (set) m_readyToReadColumn = int(x);
return set;
}
void VTTScanner::skipRun(const Run& run)
{
ASSERT(run.start() <= end());
ASSERT(run.end() >= run.start());
ASSERT(run.end() <= end());
seekTo(run.end());
}
void Gource::mouseClick(SDL_MouseButtonEvent *e) {
if(e->type != SDL_MOUSEBUTTONDOWN || commitlog==0) return;
//wheel up
if(e->button == SDL_BUTTON_WHEELUP) {
zoom(true);
return;
}
//wheel down
if(e->button == SDL_BUTTON_WHEELDOWN) {
zoom(false);
return;
}
if(e->button == SDL_BUTTON_RIGHT) {
toggleCameraMode();
return;
}
if(e->button == SDL_BUTTON_LEFT) {
mousepos = vec2f(e->x, e->y);
mouseclicked=true;
if(canSeek()) {
float position;
if(slider.click(mousepos, &position)) {
seekTo(position);
}
}
}
}
//let's get into the business
bool ChunkFile::descend(uint32 id) {
id=flipID(id);
if (read) {
bool found = false;
//save information to restore after the next Ascend
stack[numLevels].parentStartLocation = pos;
stack[numLevels].parentEOF = eof;
ChunkInfo temp = stack[numLevels];
int firstID = 0;
//let's search through children..
while(pos<eof) {
stack[numLevels].ID = readInt();
if (firstID == 0) firstID=stack[numLevels].ID|1;
stack[numLevels].length = readInt();
stack[numLevels].startLocation = pos;
if (stack[numLevels].ID == id)
{
found = true;
break;
} else {
seekTo(pos + stack[numLevels].length); //try next block
}
}
//if we found nothing, return false so the caller can skip this
if (!found) {
#ifdef CHUNKDEBUG
ILOG("Couldn't find %c%c%c%c", id, id>>8, id>>16, id>>24);
#endif
stack[numLevels]=temp;
seekTo(stack[numLevels].parentStartLocation);
return false;
}
//descend into it
//pos was set inside the loop above
eof = stack[numLevels].startLocation + stack[numLevels].length;
numLevels++;
#ifdef CHUNKDEBUG
ILOG("Descended into %c%c%c%c", id, id>>8, id>>16, id>>24);
#endif
return true;
} else {
//------------------------------------------------------------------------
bool PresetFile::readChunkList ()
{
seekTo (0);
entryCount = 0;
char8 classString[kClassIDSize + 1] = {0};
// Read header
int32 version = 0;
TSize listOffset = 0;
if (!(readEqualID (getChunkID (kHeader)) &&
readInt32 (version) &&
verify (stream->read (classString, kClassIDSize)) &&
readSize (listOffset) &&
listOffset > 0 &&
seekTo (listOffset)))
return false;
classID.fromString (classString);
// Read list
int32 count = 0;
if (!readEqualID (getChunkID (kChunkList)))
return false;
if (!readInt32 (count))
return false;
if (count > kMaxEntries)
count = kMaxEntries;
for (int32 i = 0; i < count; i++)
{
Entry& e = entries[i];
if (!(readID (e.id) &&
readSize (e.offset) &&
readSize (e.size)))
break;
entryCount++;
}
return entryCount > 0;
}
bool VTTScanner::scanPercentage(float& percentage)
{
Position savedPosition = getPosition();
if (!scanFloat(percentage))
return false;
if (scan('%'))
return true;
// Restore scanner position.
seekTo(savedPosition);
return false;
}
StorageHandle PackedStorage::openForReading(PageID page, bool countAsAccess) {
int desc;
if ( (desc=(int)LegacyStorage::openForReading(page, false))!= -1 ) {
if (!seekTo(page, desc, false)) {
//this is not an error condition here, may and shall happen!
::close(desc);
} else {
return (StorageHandle)desc;
}
}
return StorageHandle();
}
//------------------------------------------------------------------------
bool PresetFile::getUnitProgramListID (int32& unitProgramListID)
{
const Entry* e = getEntry (kProgramData);
if (e && seekTo (e->offset))
{
if (readInt32 (unitProgramListID))
{
return true;
}
}
return false;
}
void
MatrixFile::initialise()
{
Profiler profiler("MatrixFile::initialise", true);
assert(m_mode == WriteOnly);
m_setColumns = new ResizeableBitset(m_width);
off_t off = m_headerSize + (m_width * m_height * m_cellSize) + m_width;
#ifdef DEBUG_MATRIX_FILE
std::cerr << "MatrixFile[" << m_fd << "]::initialise(" << m_width << ", " << m_height << "): cell size " << m_cellSize << ", header size " << m_headerSize << ", resizing file" << std::endl;
#endif
if (::lseek(m_fd, off - 1, SEEK_SET) < 0) {
::perror("ERROR: MatrixFile::initialise: seek to end failed");
throw FileOperationFailed(m_fileName, "lseek");
}
unsigned char byte = 0;
if (::write(m_fd, &byte, 1) != 1) {
::perror("ERROR: MatrixFile::initialise: write at end failed");
throw FileOperationFailed(m_fileName, "write");
}
if (::lseek(m_fd, 0, SEEK_SET) < 0) {
::perror("ERROR: MatrixFile::initialise: Seek to write header failed");
throw FileOperationFailed(m_fileName, "lseek");
}
size_t header[2];
header[0] = m_width;
header[1] = m_height;
if (::write(m_fd, header, 2 * sizeof(size_t)) != 2 * sizeof(size_t)) {
::perror("ERROR: MatrixFile::initialise: Failed to write header");
throw FileOperationFailed(m_fileName, "write");
}
if (m_mode == WriteOnly) {
totalStorage += (m_headerSize + (m_width * m_height * m_cellSize) + m_width);
}
#ifdef DEBUG_MATRIX_FILE
std::cerr << "MatrixFile[" << m_fd << "]::initialise(" << m_width << ", " << m_height << "): storage "
<< (m_headerSize + m_width * m_height * m_cellSize + m_width) << std::endl;
std::cerr << "MatrixFile: Total storage " << totalStorage/1024 << "K" << std::endl;
#endif
seekTo(0);
}
//------------------------------------------------------------------------
bool PresetFile::writeHeader ()
{
// header id + version + class id + list offset (unknown yet)
char8 classString[kClassIDSize + 1] = {0};
classID.toString (classString);
return seekTo (0) &&
writeID (getChunkID (kHeader)) &&
writeInt32 (kFormatVersion) &&
verify (stream->write (classString, kClassIDSize)) &&
writeSize (0);
}
String VTTScanner::extractString(const Run& run)
{
ASSERT(run.start() == position());
ASSERT(run.start() <= end());
ASSERT(run.end() >= run.start());
ASSERT(run.end() <= end());
String s;
if (m_is8Bit)
s = String(m_data.characters8, run.length());
else
s = String(m_data.characters16, run.length());
seekTo(run.end());
return s;
}
RESULT eServiceMP3::seekRelative(int direction, pts_t to)
{
if (!m_gst_playbin)
return -1;
pts_t ppos;
getPlayPosition(ppos);
ppos += to * direction;
if (ppos < 0)
ppos = 0;
seekTo(ppos);
return 0;
}
void Logstalgia::mouseClick(SDL_MouseButtonEvent *e) {
if(e->type != SDL_MOUSEBUTTONDOWN) return;
if(e->button == SDL_BUTTON_LEFT) {
if(!settings.disable_progress) {
float position;
if(slider.click(mousepos, &position)) {
seekTo(position);
}
}
}
}
StorageHandle PackedStorage::openForWriting(PageID page) {
static bool wroteError=false;
char filename[PATH_MAX];
getFilename(filename, sizeof(filename), page);
//first try
int desc=open(filename, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (desc != -1) {
if (!seekTo(page, desc, true)) {
::close(desc);
return StorageHandle();
}
if ( maxBytes && byteCount>maxBytes )
freeSpace();
return (StorageHandle)desc;
}
//no space on disk? make some space available
if (errno == ENOSPC)
freeSpace();
//second try
desc=open(filename, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (desc==-1 && !wroteError) {
//report error to syslog - once!
wroteError=true;
esyslog("OSD-Teletext: Error opening teletext file %s: %s", filename, strerror(errno));
}
if (desc==-1)
return StorageHandle();
else if (!seekTo(page, desc, true)) {
::close(desc);
return StorageHandle();
}
if ( maxBytes && byteCount>maxBytes )
freeSpace();
return (StorageHandle)desc;
}
void Logstalgia::mouseClick(SDL_MouseButtonEvent *e) {
debugLog("click! (x=%d,y=%d)\n", e->x, e->y);
if(e->type != SDL_MOUSEBUTTONDOWN) return;
if(e->button == SDL_BUTTON_LEFT) {
if(!gDisableProgress) {
float position;
if(slider.click(mousepos, &position)) {
seekTo(position);
}
}
}
}
void VideoImpl::resetMovie()
{
if (_seekEnabled)
{
if (_rate > 0.0)
{
seekTo((guint64) 0);
qWarning() << "update Rate" << endl;
_updateRate();
}
else
{
// NOTE: Untested.
seekTo(_duration);
qWarning() << "update Rate" << endl;
_updateRate();
}
}
else
{
qDebug() << "Seeking not enabled: reloading the movie" << endl;
loadMovie(_uri);
}
}
bool VideoImpl::seekTo(double position)
{
gint64 duration;
if (!gst_element_query_duration (_pipeline, GST_FORMAT_TIME, &duration))
{
qDebug() << "Cannot get duration of file" << endl;
return false;
}
// Make sure position is in [0,1].
position = qBound(0.0, position, 1.0);
// Seek at position in nanoseconds.
return seekTo((guint64)(position*duration));
}
bool
Reader::accessProperty(PropertyInfo& p)
{
Request r = property(stringFromId(p.name), stringFromId(p.interpretation), p);
p.requested = r.m_want;
p.propertyData = r.m_data;
if (p.requested)
{
seekTo(p);
readProperty(p);
}
return true;
}
RESULT eServiceMP3::selectTrack(unsigned int i)
{
pts_t ppos;
getPlayPosition(ppos);
ppos -= 90000;
if (ppos < 0)
ppos = 0;
int ret = selectAudioStream(i);
if (!ret) {
/* flush */
seekTo(ppos);
}
return ret;
}
bool RCommitLog::getCommitAt(float percent, RCommit& commit) {
if(!seekable) return false;
SeekLog* seeklog = ((SeekLog*)logf);
//get the current pointer
long currpointer = seeklog->getPointer();
seekTo(percent);
bool success = findNextCommit(commit,500);
//set the pointer back
seeklog->setPointer(currpointer);
return success;
}
/* initializeCommand ()
**
** Initialize the BLITZ DISK file by writing out an empty directory.
*/
void initializeCommand () {
if (commandOptionV) printf ("INITIALIZING THE FILE SYSTEM...\n");
openDiskFile (0); /* Existing = false */
seekTo (4); /* Skip past "BLZd" magic number */
writeInteger (0x73747562); /* Magic number = "stub" */
writeInteger (0); /* Number of file */
writeInteger (1); /* Next Free Sector */
if (commandOptionV) printf ("Number of files on disk = 0\n");
if (commandOptionV) printf ("Next free sector = 1\n");
if (commandOptionV) printf ("Number of available sectors = %d\n", numberSectorsOnDisk-1);
closeFiles ();
}
bool VTTScanner::scanRun(const Run& run, const String& toMatch)
{
ASSERT(run.start() == position());
ASSERT(run.start() <= end());
ASSERT(run.end() >= run.start());
ASSERT(run.end() <= end());
size_t matchLength = run.length();
if (toMatch.length() > matchLength)
return false;
bool matched;
if (m_is8Bit)
matched = WTF::equal(toMatch.impl(), m_data.characters8, matchLength);
else
matched = WTF::equal(toMatch.impl(), m_data.characters16, matchLength);
if (matched)
seekTo(run.end());
return matched;
}
