/* DatArchive::isDatArchive
* Checks if the given data is a valid Shadowcaster dat archive
*******************************************************************/
bool DatArchive::isDatArchive(MemChunk& mc)
{
// Read dat header
mc.seek(0, SEEK_SET);
uint16_t num_lumps;
uint32_t dir_offset, junk;
mc.read(&num_lumps, 2); // Size
mc.read(&dir_offset, 4); // Directory offset
mc.read(&junk, 4); // Unknown value
num_lumps = wxINT16_SWAP_ON_BE(num_lumps);
dir_offset = wxINT32_SWAP_ON_BE(dir_offset);
junk = wxINT32_SWAP_ON_BE(junk);
if (dir_offset >= mc.getSize())
return false;
// Read the directory
mc.seek(dir_offset, SEEK_SET);
// Read lump info
uint32_t offset = 0;
uint32_t size = 0;
uint16_t nameofs = 0;
uint16_t flags = 0;
mc.read(&offset, 4); // Offset
mc.read(&size, 4); // Size
mc.read(&nameofs, 2); // Name offset
mc.read(&flags, 2); // Flags
// Byteswap values for big endian if needed
offset = wxINT32_SWAP_ON_BE(offset);
size = wxINT32_SWAP_ON_BE(size);
nameofs = wxINT16_SWAP_ON_BE(nameofs);
flags = wxINT16_SWAP_ON_BE(flags);
// The first lump should have a name (subsequent lumps need not have one).
// Also, sanity check the values.
if (nameofs == 0 || nameofs >= mc.getSize() || offset + size >= mc.getSize())
{
return false;
}
size_t len = 1;
size_t start = nameofs+dir_offset;
// Sanity checks again. Make sure there is actually a name.
if (start > mc.getSize() || mc[start] < 33)
return false;
for (size_t i = start; (mc[i] != 0 && i < mc.getSize()); ++i, ++len)
{
// Names should not contain garbage characters
if (mc[i] < 32 || mc[i] > 126)
return false;
}
// Let's be reasonable here. While names aren't limited, if it's too long, it's suspicious.
if (len > 60)
return false;
return true;
}
bool MusBinInput::ReadFileHeader( MusFileHeader *header )
{
Read( &int32, 4 );
m_flag = wxINT32_SWAP_ON_BE( int32 );
Read( &int32, 4 );
m_vmaj = wxINT32_SWAP_ON_BE( int32 );
Read( &int32, 4 );
m_vmin = wxINT32_SWAP_ON_BE( int32 );
Read( &int32, 4 );
m_vrev = wxINT32_SWAP_ON_BE( int32 );
Read( &uint16, 2 );
header->nbpage = wxUINT16_SWAP_ON_BE( uint16 ); // nbpage
Read( &uint16, 2 );
header->nopage = wxUINT16_SWAP_ON_BE( uint16 ); // nopage
Read( &uint16, 2 );
header->noligne = wxUINT16_SWAP_ON_BE( uint16 ); // noligne
Read( &uint32, 4 );
header->xpos = wxUINT32_SWAP_ON_BE( uint32 ); // xpso
Read( &header->param.orientation, 1 ); // param - orientation
Read( &header->param.EpLignesPortee, 1 ); // param - epLignesPortee
header->param.EpLignesPortee = 1;
Read( &header->param.EpQueueNote, 1 ); // param - epQueueNotes
header->param.EpQueueNote = 2;
Read( &header->param.EpBarreMesure, 1 ); // param - epBarreMesure
Read( &header->param.EpBarreValeur, 1 ); // param - epBarreValeur
Read( &header->param.EpBlancBarreValeur, 1 ); // param - epBlancBarreValeur
Read( &int32, 4 );
header->param.pageFormatHor = wxINT32_SWAP_ON_BE( int32 ); // param - pageFormatHor
Read( &int32, 4 );
header->param.pageFormatVer = wxINT32_SWAP_ON_BE( int32 ); // param - pageFormatVer
Read( &int16, 2 );
header->param.MargeSOMMET = wxINT16_SWAP_ON_BE( int16 ); // param - margeSommet
Read( &int16, 2 );
header->param.MargeGAUCHEIMPAIRE = wxINT16_SWAP_ON_BE( int16 ); // param - margeGaucheImpaire
Read( &int16, 2 );
header->param.MargeGAUCHEPAIRE = wxINT16_SWAP_ON_BE( int16 ); // param - margeGauchePaire
Read( &header->param.rapportPorteesNum, 1 ); // rpPorteesNum
Read( &header->param.rapportPorteesDen, 1 ); // rpPorteesDen
Read( &header->param.rapportDiminNum, 1 ); // rpDiminNum
Read( &header->param.rapportDiminDen, 1 ); // rpDiminDen
Read( &header->param.hampesCorr, 1 ); // hampesCorr
header->param.hampesCorr = 1;
if ( AxFile::FormatVersion(m_vmaj, m_vmin, m_vrev) < AxFile::FormatVersion(1, 6, 1) )
return true; // following values where added in 1.6.1
// 1.6.1
Read( &int32, 4 );
header->param.notationMode = wxINT32_SWAP_ON_BE( int32 );
return true;
}
bool MusBinInput::ReadPage( MusPage *page )
{
int j;
if ( !ReadSeparator() )
return false;
Read( &int32, 4 );
page->npage = wxINT32_SWAP_ON_BE( int32 );
Read( &int16, 2 );
page->nbrePortees = wxINT16_SWAP_ON_BE( int16 );
Read( &page->noMasqueFixe, 1 );
Read( &page->noMasqueVar, 1 );
Read( &page->reserve, 1 );
Read( &page->defin, 1 );
Read( &int32, 4 );
page->indent = wxINT32_SWAP_ON_BE( int32 );
Read( &int32, 4 );
page->indentDroite = wxINT32_SWAP_ON_BE( int32 );
Read( &int32, 4 );
page->lrg_lign = wxINT32_SWAP_ON_BE( int32 );
for (j = 0; j < page->nbrePortees; j++)
{
MusStaff *staff = new MusStaff();
ReadStaff( staff );
staff->voix = (j % 2 == 0) ? 1 : 0; // add voices
page->m_staves.Add( staff );
}
return true;
}
bool CDVDongleController::decodeOut(wxFloat32* audio, unsigned int length, unsigned int& ber)
{
wxASSERT(audio != NULL);
wxASSERT(length == DSTAR_AUDIO_BLOCK_SIZE);
ber = 0U;
bool ambeFound = false;
bool audioFound = false;
for (;;) {
unsigned char buffer[DVD_AUDIO_LENGTH_BYTES];
DVD_RESP_TYPE type = getResponse(buffer, DVD_AUDIO_LENGTH_BYTES);
if (type == DVDRT_ERROR)
return false;
if (type == DVDRT_AMBE) {
ber = ((buffer[14U] + buffer[15U] * 256U) * 100U) / 32767U;
ambeFound = true;
} else if (type == DVDRT_AUDIO) {
wxInt16* q = (wxInt16*)buffer;
for (unsigned int i = 0U; i < DSTAR_AUDIO_BLOCK_SIZE; i++) {
wxInt16 word = wxINT16_SWAP_ON_BE(*q++);
audio[i] = wxFloat32(word) / 32768.0F;
}
audioFound = true;
}
if (ambeFound && audioFound)
return true;
::wxMilliSleep(5UL);
}
}
bool CDVAPController::setPower()
{
unsigned int count = 0U;
unsigned int length;
RESP_TYPE resp;
do {
unsigned char buffer[10U];
::memcpy(buffer, DVAP_REQ_POWER, DVAP_REQ_POWER_LEN);
wxInt16 power = wxINT16_SWAP_ON_BE(m_power);
::memcpy(buffer + 4U, &power, sizeof(wxInt16));
int ret = m_serial.write(buffer, DVAP_REQ_POWER_LEN);
if (ret != int(DVAP_REQ_POWER_LEN)) {
m_serial.close();
return false;
}
::wxMilliSleep(50UL);
resp = getResponse(m_buffer, length);
if (resp != RT_POWER) {
count++;
if (count >= MAX_RESPONSES) {
wxLogError(wxT("The DVAP is not responding to the power command"));
return false;
}
}
} while (resp != RT_POWER);
return true;
}
bool CDVAPController::setOffset()
{
unsigned char buffer[10U];
::memcpy(buffer, DVAP_REQ_OFFSET, DVAP_REQ_OFFSET_LEN);
wxInt16 offset = wxINT16_SWAP_ON_BE(m_offset);
::memcpy(buffer + 4U, &offset, sizeof(wxInt16));
int ret = m_serial.write(buffer, DVAP_REQ_OFFSET_LEN);
if (ret != int(DVAP_REQ_OFFSET_LEN)) {
m_serial.close();
return false;
}
unsigned int count = 0U;
unsigned int length;
RESP_TYPE resp;
do {
::wxMilliSleep(5UL);
resp = getResponse(m_buffer, length);
if (resp != RT_OFFSET) {
count++;
if (count >= MAX_RESPONSES) {
wxLogError(wxT("The DVAP is not responding to the offset command"));
return false;
}
}
} while (resp != RT_OFFSET);
return true;
}
bool MusBinOutput::WritePage( const MusPage *page )
{
int j;
if ( !WriteSeparator() )
return false;
int32 = wxINT32_SWAP_ON_BE( page->npage );
Write( &int32, 4 );
int16 = wxINT16_SWAP_ON_BE( page->nbrePortees );
Write( &int16, 2 );
Write( &page->noMasqueFixe, 1 );
Write( &page->noMasqueVar, 1 );
Write( &page->reserve, 1 );
Write( &page->defin, 1 );
int32 = wxINT32_SWAP_ON_BE( page->indent );
Write( &int32, 4 );
int32 = wxINT32_SWAP_ON_BE( page->indentDroite );
Write( &int32, 4 );
int32 = wxINT32_SWAP_ON_BE( page->lrg_lign );
Write( &int32, 4 );
MusStaff *staff = NULL;
for (j = 0; j < page->nbrePortees; j++)
{
staff = &page->m_staves[j];
WriteStaff( staff );
}
return true;
}
void CDVDongleController::encodeIn(const wxFloat32* audio, unsigned int length)
{
wxASSERT(audio != NULL);
wxASSERT(length == DSTAR_AUDIO_BLOCK_SIZE);
unsigned char buffer[DVD_HEADER_LEN + DVD_AUDIO_LENGTH_BYTES];
unsigned char* p = buffer;
// First a dummy AMBE packet with parameter information in
::memcpy(p, DVD_AMBE_HEADER, DVD_HEADER_LEN);
p += DVD_HEADER_LEN;
::memcpy(p, DVD_AMBE_ENC_DATA, DVD_AMBE_LENGTH_BYTES);
m_controller->write(buffer, DVD_HEADER_LEN + DVD_AMBE_LENGTH_BYTES);
// Then the Audio data to be encoded
p = buffer;
::memcpy(p, DVD_AUDIO_HEADER, DVD_HEADER_LEN);
p += DVD_HEADER_LEN;
wxInt16* q = (wxInt16*)p;
for (unsigned int i = 0; i < DSTAR_AUDIO_BLOCK_SIZE; i++) {
wxInt16 word = wxInt16(audio[i] * 32767.0F);
*q++ = wxINT16_SWAP_ON_BE(word);
}
m_controller->write(buffer, DVD_HEADER_LEN + DVD_AUDIO_LENGTH_BYTES);
}
bool MusBinOutput::WriteFileHeader( const MusFileHeader *header )
{
int32 = wxINT32_SWAP_ON_BE( m_flag );
Write( &int32, 4 );
int32 = wxINT32_SWAP_ON_BE( AxApp::s_version_major );
Write( &int32, 4 );
int32 = wxINT32_SWAP_ON_BE( AxApp::s_version_minor );
Write( &int32, 4 );
int32 = wxINT32_SWAP_ON_BE( AxApp::s_version_revision );
Write( &int32, 4 );
uint16 = wxUINT16_SWAP_ON_BE( header->nbpage ); // nbpage
Write( &uint16, 2 );
uint16 = wxUINT16_SWAP_ON_BE( header->nopage ); // nopage
Write( &uint16, 2 );
uint16 = wxUINT16_SWAP_ON_BE( header->noligne ); // noligne
Write( &uint16, 2 );
uint32 = wxUINT32_SWAP_ON_BE( header->xpos ); // xpso
Write( &uint32, 4 );
Write( &header->param.orientation, 1 ); // param - orientation
Write( &header->param.EpLignesPortee, 1 ); // param - epLignesPortee
Write( &header->param.EpQueueNote, 1 ); // param - epQueueNotes
Write( &header->param.EpBarreMesure, 1 ); // param - epBarreMesure
Write( &header->param.EpBarreValeur, 1 ); // param - epBarreValeur
Write( &header->param.EpBlancBarreValeur, 1 ); // param - epBlancBarreValeur
int32 = wxINT32_SWAP_ON_BE( header->param.pageFormatHor ); // param - pageFormatHor
Write( &int32, 4 );
int32 = wxINT32_SWAP_ON_BE( header->param.pageFormatVer ); // param - pageFormatVer
Write( &int32, 4 );
int16 = wxINT16_SWAP_ON_BE( header->param.MargeSOMMET ); // param - margeSommet
Write( &int16, 2 );
int16 = wxINT16_SWAP_ON_BE( header->param.MargeGAUCHEIMPAIRE ); // param - margeGaucheImpaire
Write( &int16, 2 );
int16 = wxINT16_SWAP_ON_BE( header->param.MargeGAUCHEPAIRE ); // param - margeGauchePaire
Write( &int16, 2 );
Write( &header->param.rapportPorteesNum, 1 ); // rpPorteesNum
Write( &header->param.rapportPorteesDen, 1 ); // rpPorteesDen
Write( &header->param.rapportDiminNum, 1 ); // rpDiminNum
Write( &header->param.rapportDiminDen, 1 ); // rpDiminDen
Write( &header->param.hampesCorr, 1 ); // hampesCorr
int32 = wxINT32_SWAP_ON_BE( header->param.notationMode ); // param - pageFormatVer
Write( &int32, 4 );
return true;
}
bool MusBinOutput::WritePagination( const MusPagination *pagination )
{
int16 = wxINT16_SWAP_ON_BE( pagination->numeroInitial );
Write( &int16, 2 );
Write( &pagination->aussiPremierPage, 1 );
Write( &pagination->position, 1 );
Write( &pagination->numeroFonte, 1 );
Write( &pagination->carStyle, 1 );
Write( &pagination->taille, 1 );
Write( &pagination->offsetDuBord, 1 );
return true;
}
bool MusBinInput::ReadPagination( MusPagination *pagination )
{
Read( &int16, 2 );
pagination->numeroInitial = wxINT16_SWAP_ON_BE( int16 );
Read( &pagination->aussiPremierPage, 1 );
Read( &pagination->position, 1 );
Read( &pagination->numeroFonte, 1 );
Read( &pagination->carStyle, 1 );
Read( &pagination->taille, 1 );
Read( &pagination->offsetDuBord, 1 );
return true;
}
// -----------------------------------------------------------------------------
// Reads in a doom-format TEXTUREx entry.
// Returns true on success, false otherwise
// -----------------------------------------------------------------------------
bool TextureXList::readTEXTUREXData(ArchiveEntry* texturex, const PatchTable& patch_table, bool add)
{
// Check entries were actually given
if (!texturex)
return false;
// Clear current textures if needed
if (!add)
clear();
// Update palette
MainEditor::setGlobalPaletteFromArchive(texturex->parent());
// Read TEXTUREx
// Read header
texturex->seek(0, SEEK_SET);
// Number of textures
int32_t n_tex = 0;
if (!texturex->read(&n_tex, 4))
{
Log::error("TEXTUREx entry is corrupt (can't read texture count)");
return false;
}
n_tex = wxINT32_SWAP_ON_BE(n_tex);
// If it's an empty TEXTUREx entry, stop here
if (n_tex == 0)
return true;
// Texture definition offsets
vector<int32_t> offsets(n_tex);
if (!texturex->read(offsets.data(), n_tex * 4))
{
Log::error("TEXTUREx entry is corrupt (can't read first offset)");
return false;
}
// Read the first texture definition to try to identify the format
if (!texturex->seek(wxINT32_SWAP_ON_BE(offsets[0]), SEEK_SET))
{
Log::error("TEXTUREx entry is corrupt (can't read first definition)");
return false;
}
// Look at the name field. Is it present or not?
char tempname[8];
if (!texturex->read(&tempname, 8))
{
Log::error("TEXTUREx entry is corrupt (can't read first name)");
return false;
}
// Let's pretend it is and see what happens.
txformat_ = Format::Normal;
// Only the characters A-Z (uppercase), 0-9, and [ ] - _ should be used in texture names.
for (uint8_t a = 0; a < 8; ++a)
{
if (a > 0 && tempname[a] == 0)
// We found a null-terminator for the string, so we can assume it's okay.
break;
if (tempname[a] >= 'a' && tempname[a] <= 'z')
{
txformat_ = Format::Jaguar;
// Log::info(1, "Jaguar texture");
break;
}
else if (!((tempname[a] >= 'A' && tempname[a] <= '[') || (tempname[a] >= '0' && tempname[a] <= '9')
|| tempname[a] == ']' || tempname[a] == '-' || tempname[a] == '_'))
// We're out of character range, so this is probably not a texture name.
{
txformat_ = Format::Nameless;
// Log::info(1, "Nameless texture");
break;
}
}
// Now let's see if it is the abridged Strife format or not.
if (txformat_ == Format::Normal)
{
// No need to test this again since it was already tested before.
texturex->seek(offsets[0], SEEK_SET);
FullTexDef temp;
if (!texturex->read(&temp, 22))
{
Log::error("TEXTUREx entry is corrupt (can't test definition)");
return false;
}
// Test condition adapted from ZDoom; apparently the first two bytes of columndir
// may be set to garbage values by some editors and are therefore unreliable.
if (wxINT16_SWAP_ON_BE(temp.patchcount <= 0) || (temp.columndir[1] != 0))
txformat_ = Format::Strife11;
}
// Read all texture definitions
for (int32_t a = 0; a < n_tex; a++)
{
// Skip to texture definition
if (!texturex->seek(offsets[a], SEEK_SET))
{
Log::error("TEXTUREx entry is corrupt (can't find definition)");
return false;
}
// Read definition
TexDef tdef;
if (txformat_ == Format::Nameless)
{
NamelessTexDef nameless;
// Auto-naming mechanism taken from DeuTex
if (a > 99999)
{
Log::error("More than 100000 nameless textures");
return false;
}
char temp[9] = "";
sprintf(temp, "TEX%05d", a);
memcpy(tdef.name, temp, 8);
// Read texture info
if (!texturex->read(&nameless, 8))
{
Log::error("TEXTUREx entry is corrupt (can't read nameless definition #{})", a);
return false;
}
// Copy data to permanent structure
tdef.flags = nameless.flags;
tdef.scale[0] = nameless.scale[0];
tdef.scale[1] = nameless.scale[1];
tdef.width = nameless.width;
tdef.height = nameless.height;
}
else if (!texturex->read(&tdef, 16))
{
Log::error("TEXTUREx entry is corrupt, (can't read texture definition #{})", a);
return false;
}
// Skip unused
if (txformat_ != Format::Strife11)
{
if (!texturex->seek(4, SEEK_CUR))
{
Log::error("TEXTUREx entry is corrupt (can't skip dummy data past #{})", a);
return false;
}
}
// Create texture
tdef.cleanupName();
auto tex = std::make_unique<CTexture>();
tex->name_ = StrUtil::viewFromChars(tdef.name, 8);
tex->size_.x = wxINT16_SWAP_ON_BE(tdef.width);
tex->size_.y = wxINT16_SWAP_ON_BE(tdef.height);
tex->scale_.x = tdef.scale[0] / 8.0;
tex->scale_.y = tdef.scale[1] / 8.0;
// Set flags
if (tdef.flags & Flags::WorldPanning)
tex->world_panning_ = true;
// Read patches
int16_t n_patches = 0;
if (!texturex->read(&n_patches, 2))
{
Log::error("TEXTUREx entry is corrupt (can't read patchcount #{})", a);
return false;
}
// Log::info(1, "Texture #{}: {} patch%s", a, n_patches, n_patches == 1 ? "" : "es");
for (uint16_t p = 0; p < n_patches; p++)
{
// Read patch definition
Patch pdef;
if (!texturex->read(&pdef, 6))
{
Log::error("TEXTUREx entry is corrupt (can't read patch definition #{}:{})", a, p);
Log::error("Lump size {}, offset {}", texturex->size(), texturex->currentPos());
return false;
}
// Skip unused
if (txformat_ != Format::Strife11)
{
if (!texturex->seek(4, SEEK_CUR))
{
Log::error("TEXTUREx entry is corrupt (can't skip dummy data past #{}:{})", a, p);
return false;
}
}
// Add it to the texture
std::string patch;
if (txformat_ == Format::Jaguar)
{
patch = StrUtil::upper(tex->name_);
}
else
{
patch = patch_table.patchName(pdef.patch);
}
if (patch.empty())
{
// Log::info(1, "Warning: Texture %s contains patch %d which is invalid - may be incorrect PNAMES
// entry", tex->getName(), pdef.patch);
patch = fmt::format("INVPATCH{:04d}", pdef.patch);
}
tex->addPatch(patch, pdef.left, pdef.top);
}
// Add texture to list
addTexture(std::move(tex));
}
return true;
}
/* DatArchive::open
* Reads wad format data from a MemChunk
* Returns true if successful, false otherwise
*******************************************************************/
bool DatArchive::open(MemChunk& mc)
{
// Check data was given
if (!mc.hasData())
return false;
const uint8_t* mcdata = mc.getData();
// Read dat header
mc.seek(0, SEEK_SET);
uint16_t num_lumps;
uint32_t dir_offset, unknown;
mc.read(&num_lumps, 2); // Size
mc.read(&dir_offset, 4); // Directory offset
mc.read(&unknown, 4); // Unknown value
num_lumps = wxINT16_SWAP_ON_BE(num_lumps);
dir_offset = wxINT32_SWAP_ON_BE(dir_offset);
unknown = wxINT32_SWAP_ON_BE(unknown);
string lastname(wxString::FromAscii("-noname-"));
size_t namecount = 0;
// Stop announcements (don't want to be announcing modification due to entries being added etc)
setMuted(true);
// Read the directory
mc.seek(dir_offset, SEEK_SET);
theSplashWindow->setProgressMessage("Reading dat archive data");
for (uint32_t d = 0; d < num_lumps; d++)
{
// Update splash window progress
theSplashWindow->setProgress(((float)d / (float)num_lumps));
// Read lump info
uint32_t offset = 0;
uint32_t size = 0;
uint16_t nameofs = 0;
uint16_t flags = 0;
mc.read(&offset, 4); // Offset
mc.read(&size, 4); // Size
mc.read(&nameofs, 2); // Name offset
mc.read(&flags, 2); // Flags (only one: RLE encoded)
// Byteswap values for big endian if needed
offset = wxINT32_SWAP_ON_BE(offset);
size = wxINT32_SWAP_ON_BE(size);
nameofs = wxINT16_SWAP_ON_BE(nameofs);
flags = wxINT16_SWAP_ON_BE(flags);
// If the lump data goes past the directory,
// the data file is invalid
if (offset + size > mc.getSize())
{
wxLogMessage("DatArchive::open: Dat archive is invalid or corrupt at entry %i", d);
Global::error = "Archive is invalid and/or corrupt";
setMuted(false);
return false;
}
string myname;
if (nameofs != 0)
{
size_t len = 1;
size_t start = nameofs+dir_offset;
for (size_t i = start; mcdata[i] != 0; ++i) { ++len; }
lastname = myname = wxString::FromAscii(mcdata+start, len);
namecount = 0;
}
else
{
myname = S_FMT("%s+%d", lastname, ++namecount);
}
// Create & setup lump
ArchiveEntry* nlump = new ArchiveEntry(myname, size);
nlump->setLoaded(false);
nlump->exProp("Offset") = (int)offset;
nlump->setState(0);
if (flags & 1) nlump->setEncryption(ENC_SCRLE0);
// Check for markers
if (!nlump->getName().Cmp("startflats"))
flats[0] = d;
if (!nlump->getName().Cmp("endflats"))
flats[1] = d;
if (!nlump->getName().Cmp("startsprites"))
sprites[0] = d;
if (!nlump->getName().Cmp("endmonsters"))
sprites[1] = d;
if (!nlump->getName().Cmp("startwalls"))
walls[0] = d;
if (!nlump->getName().Cmp("endwalls"))
walls[1] = d;
// Add to entry list
getRoot()->addEntry(nlump);
}
// Detect all entry types
MemChunk edata;
theSplashWindow->setProgressMessage("Detecting entry types");
for (size_t a = 0; a < numEntries(); a++)
{
// Update splash window progress
theSplashWindow->setProgress((((float)a / (float)num_lumps)));
// Get entry
ArchiveEntry* entry = getEntry(a);
// Read entry data if it isn't zero-sized
if (entry->getSize() > 0)
{
// Read the entry data
mc.exportMemChunk(edata, getEntryOffset(entry), entry->getSize());
entry->importMemChunk(edata);
}
// Detect entry type
EntryType::detectEntryType(entry);
// Set entry to unchanged
entry->setState(0);
}
// Detect maps (will detect map entry types)
//theSplashWindow->setProgressMessage("Detecting maps");
//detectMaps();
// Setup variables
setMuted(false);
setModified(false);
announce("opened");
theSplashWindow->setProgressMessage("");
return true;
}
/* DatArchive::isDatArchive
* Checks if the file at [filename] is a valid Shadowcaster dat archive
*******************************************************************/
bool DatArchive::isDatArchive(string filename)
{
// Open file for reading
wxFile file(filename);
// Check it opened ok
if (!file.IsOpened())
return false;
// Read dat header
file.Seek(0, wxFromStart);
uint16_t num_lumps;
uint32_t dir_offset, junk;
file.Read(&num_lumps, 2); // Size
file.Read(&dir_offset, 4); // Directory offset
file.Read(&junk, 4); // Unknown value
num_lumps = wxINT16_SWAP_ON_BE(num_lumps);
dir_offset = wxINT32_SWAP_ON_BE(dir_offset);
junk = wxINT32_SWAP_ON_BE(junk);
if (dir_offset >= file.Length())
return false;
// Read the directory
file.Seek(dir_offset, wxFromStart);
// Read lump info
uint32_t offset = 0;
uint32_t size = 0;
uint16_t nameofs = 0;
uint16_t flags = 0;
file.Read(&offset, 4); // Offset
file.Read(&size, 4); // Size
file.Read(&nameofs, 2); // Name offset
file.Read(&flags, 2); // Flags
// Byteswap values for big endian if needed
offset = wxINT32_SWAP_ON_BE(offset);
size = wxINT32_SWAP_ON_BE(size);
nameofs = wxINT16_SWAP_ON_BE(nameofs);
flags = wxINT16_SWAP_ON_BE(flags);
// The first lump should have a name (subsequent lumps need not have one).
// Also, sanity check the values.
if (nameofs == 0 || nameofs >= file.Length() || offset + size >= file.Length())
{
return false;
}
string name;
size_t len = 1;
size_t start = nameofs+dir_offset;
// Sanity checks again. Make sure there is actually a name.
if (start > file.Length())
return false;
uint8_t temp;
file.Seek(start, wxFromStart);
file.Read(&temp, 1);
if (temp < 33)
return false;
for (size_t i = start; i < file.Length(); ++i, ++len)
{
file.Read(&temp, 1);
// Found end of name
if (temp == 0)
break;
// Names should not contain garbage characters
if (temp < 32 || temp > 126)
return false;
}
// Let's be reasonable here. While names aren't limited, if it's too long, it's suspicious.
if (len > 60)
return false;
return true;
}
/* DatArchive::write
* Writes the dat archive to a MemChunk
* Returns true if successful, false otherwise
*******************************************************************/
bool DatArchive::write(MemChunk& mc, bool update)
{
// Only two bytes are used for storing entry amount,
// so abort for excessively large files:
if (numEntries() > 65535)
return false;
// Determine directory offset, name offsets & individual lump offsets
uint32_t dir_offset = 10;
uint16_t name_offset = numEntries() * 12;
uint32_t name_size = 0;
string previousname = "";
uint16_t* nameoffsets = new uint16_t[numEntries()];
ArchiveEntry* entry = NULL;
for (uint16_t l = 0; l < numEntries(); l++)
{
entry = getEntry(l);
setEntryOffset(entry, dir_offset);
dir_offset += entry->getSize();
// Does the entry has a name?
string name = entry->getName();
if (l > 0 && previousname.length() > 0 && name.length() > previousname.length() &&
!previousname.compare(0, previousname.length(), name, 0, previousname.length()) &&
name.at(previousname.length()) == '+')
{
// This is a fake name
name = "";
nameoffsets[l] = 0;
}
else
{
// This is a true name
previousname = name;
nameoffsets[l] = uint16_t(name_offset + name_size);
name_size += name.length() + 1;
}
}
// Clear/init MemChunk
mc.clear();
mc.seek(0, SEEK_SET);
mc.reSize(dir_offset + name_size + numEntries() * 12);
// Write the header
uint16_t num_lumps = wxINT16_SWAP_ON_BE(numEntries());
dir_offset = wxINT32_SWAP_ON_BE(dir_offset);
uint32_t unknown = 0;
mc.write(&num_lumps, 2);
mc.write(&dir_offset, 4);
mc.write(&unknown, 4);
// Write the lumps
for (uint16_t l = 0; l < numEntries(); l++)
{
entry = getEntry(l);
mc.write(entry->getData(), entry->getSize());
}
// Write the directory
for (uint16_t l = 0; l < num_lumps; l++)
{
entry = getEntry(l);
uint32_t offset = wxINT32_SWAP_ON_BE(getEntryOffset(entry));
uint32_t size = wxINT32_SWAP_ON_BE(entry->getSize());
uint16_t nameofs = wxINT16_SWAP_ON_BE(nameoffsets[l]);
uint16_t flags = wxINT16_SWAP_ON_BE((entry->isEncrypted() == ENC_SCRLE0) ? 1 : 0);
mc.write(&offset, 4); // Offset
mc.write(&size, 4); // Size
mc.write(&nameofs, 2); // Name offset
mc.write(&flags, 2); // Flags
if (update)
{
entry->setState(0);
entry->exProp("Offset") = (int)wxINT32_SWAP_ON_BE(offset);
}
}
// Write the names
for (uint16_t l = 0; l < num_lumps; l++)
{
uint8_t zero = 0;
entry = getEntry(l);
if (nameoffsets[l])
{
mc.write(CHR(entry->getName()), entry->getName().length());
mc.write(&zero, 1);
}
}
// Clean-up
delete[] nameoffsets;
// Finished!
return true;
}
/* TextureXList::readTEXTUREXData
* Reads in a doom-format TEXTUREx entry. Returns true on success,
* false otherwise
*******************************************************************/
bool TextureXList::readTEXTUREXData(ArchiveEntry* texturex, PatchTable& patch_table, bool add) {
// Check entries were actually given
if (!texturex)
return false;
// Clear current textures if needed
if (!add) clear();
// Update palette
theMainWindow->getPaletteChooser()->setGlobalFromArchive(texturex->getParent());
// Read TEXTUREx
// Read header
texturex->seek(0, SEEK_SET);
int32_t n_tex = 0;
int32_t* offsets = NULL;
// Number of textures
if (!texturex->read(&n_tex, 4)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't read texture count)");
return false;
}
n_tex = wxINT32_SWAP_ON_BE(n_tex);
// If it's an empty TEXTUREx entry, stop here
if (n_tex == 0)
return true;
// Texture definition offsets
offsets = new int32_t[n_tex];
if (!texturex->read(offsets, n_tex * 4)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't read first offset)");
return false;
}
// Read the first texture definition to try to identify the format
if (!texturex->seek(wxINT32_SWAP_ON_BE(offsets[0]), SEEK_SET)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't read first definition)");
return false;
}
// Look at the name field. Is it present or not?
char tempname[8];
if (!texturex->read(&tempname, 8)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't read first name)");
return false;
}
// Let's pretend it is and see what happens.
txformat = TXF_NORMAL;
// Only the characters A-Z (uppercase), 0-9, and [ ] - _ should be used in texture names.
for (uint8_t a = 0; a < 8; ++a) {
if (a > 0 && tempname[a] == 0)
// We found a null-terminator for the string, so we can assume it's okay.
break;
if (tempname[a] >= 'a' && tempname[a] <= 'z') {
txformat = TXF_JAGUAR;
//wxLogMessage("Jaguar texture");
break;
}
else if (!((tempname[a] >= 'A' && tempname[a] <= '[') ||
(tempname[a] >= '0' && tempname[a] <= '9') ||
tempname[a] == ']' || tempname[a] == '-' || tempname[a] == '_'))
// We're out of character range, so this is probably not a texture name.
{
txformat = TXF_NAMELESS;
//wxLogMessage("Nameless texture");
break;
}
}
// Now let's see if it is the abridged Strife format or not.
if (txformat == TXF_NORMAL) {
// No need to test this again since it was already tested before.
texturex->seek(offsets[0], SEEK_SET);
ftdef_t temp;
if (!texturex->read(&temp, 22)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't test definition)");
return false;
}
// Test condition adapted from ZDoom; apparently the first two bytes of columndir
// may be set to garbage values by some editors and are therefore unreliable.
if (wxINT16_SWAP_ON_BE(temp.patchcount <= 0) || (temp.columndir[1] != 0))
txformat = TXF_STRIFE11;
}
// Read all texture definitions
for (int32_t a = 0; a < n_tex; a++) {
// Skip to texture definition
if (!texturex->seek(offsets[a], SEEK_SET)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't find definition)");
return false;
}
// Read definition
tdef_t tdef;
if (txformat == TXF_NAMELESS) {
nltdef_t nameless;
// Auto-naming mechanism taken from DeuTex
if (a > 99999) {
wxLogMessage("Error: More than 100000 nameless textures");
return false;
}
char temp[9] = "";
sprintf (temp, "TEX%05d", a);
memcpy(tdef.name, temp, 8);
// Read texture info
if (!texturex->read(&nameless, 8)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't read nameless definition #%d)", a);
return false;
}
// Copy data to permanent structure
tdef.flags = nameless.flags;
tdef.scale[0] = nameless.scale[0];
tdef.scale[1] = nameless.scale[1];
tdef.width = nameless.width;
tdef.height = nameless.height;
}
else if (!texturex->read(&tdef, 16)) {
wxLogMessage("Error: TEXTUREx entry is corrupt, (can't read texture definition #%d)", a);
return false;
}
// Skip unused
if (txformat != TXF_STRIFE11) {
if (!texturex->seek(4, SEEK_CUR)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't skip dummy data past #%d)", a);
return false;
}
}
// Create texture
CTexture* tex = new CTexture();
tex->name = wxString::FromAscii(tdef.name, 8);
tex->width = wxINT16_SWAP_ON_BE(tdef.width);
tex->height = wxINT16_SWAP_ON_BE(tdef.height);
tex->scale_x = tdef.scale[0]/8.0;
tex->scale_y = tdef.scale[1]/8.0;
// Set flags
if (tdef.flags & TX_WORLDPANNING)
tex->world_panning = true;
// Read patches
int16_t n_patches = 0;
if (!texturex->read(&n_patches, 2)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't read patchcount #%d)", a);
return false;
}
//wxLogMessage("Texture #%d: %d patch%s", a, n_patches, n_patches == 1 ? "" : "es");
for (uint16_t p = 0; p < n_patches; p++) {
// Read patch definition
tx_patch_t pdef;
if (!texturex->read(&pdef, 6)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't read patch definition #%d:%d)", a, p);
wxLogMessage("Lump size %d, offset %d", texturex->getSize(), texturex->currentPos());
return false;
}
// Skip unused
if (txformat != TXF_STRIFE11) {
if (!texturex->seek(4, SEEK_CUR)) {
wxLogMessage("Error: TEXTUREx entry is corrupt (can't skip dummy data past #%d:%d)", a, p);
return false;
}
}
// Add it to the texture
string patch;
if (txformat == TXF_JAGUAR) {
patch = tex->name.Upper();
} else {
patch = patch_table.patchName(pdef.patch);
}
if (patch.IsEmpty()) {
//wxLogMessage("Warning: Texture %s contains patch %d which is invalid - may be incorrect PNAMES entry", CHR(tex->getName()), pdef.patch);
patch = S_FMT("INVPATCH%04d", pdef.patch);
}
tex->addPatch(patch, pdef.left, pdef.top);
}
// Add texture to list
addTexture(tex);
}
// Clean up
delete[] offsets;
return true;
}
/* EntryOperations::setGfxOffsets
* Changes the offsets of the given gfx entry. Returns false if the
* entry is invalid or not an offset-supported format, true otherwise
*******************************************************************/
bool EntryOperations::setGfxOffsets(ArchiveEntry* entry, int x, int y)
{
if (entry == NULL || entry->getType() == NULL)
return false;
// Check entry type
EntryType* type = entry->getType();
string entryformat = type->getFormat();
if (!(entryformat == "img_doom" || entryformat == "img_doom_arah" ||
entryformat == "img_doom_alpha" || entryformat == "img_doom_beta" ||
entryformat == "img_png"))
{
wxLogMessage("Entry \"%s\" is of type \"%s\" which does not support offsets", entry->getName(), entry->getType()->getName());
return false;
}
// Doom gfx format, normal and beta version.
// Also arah format from alpha 0.2 because it uses the same header format.
if (entryformat == "img_doom" || entryformat == "img_doom_beta" || entryformat == "image_doom_arah")
{
// Get patch header
patch_header_t header;
entry->seek(0, SEEK_SET);
entry->read(&header, 8);
// Apply new offsets
header.left = wxINT16_SWAP_ON_BE((int16_t)x);
header.top = wxINT16_SWAP_ON_BE((int16_t)y);
// Write new header to entry
entry->seek(0, SEEK_SET);
entry->write(&header, 8);
}
// Doom alpha gfx format
else if (entryformat == "img_doom_alpha")
{
// Get patch header
entry->seek(0, SEEK_SET);
oldpatch_header_t header;
entry->read(&header, 4);
// Apply new offsets
header.left = (int8_t)x;
header.top = (int8_t)y;
// Write new header to entry
entry->seek(0, SEEK_SET);
entry->write(&header, 4);
}
// PNG format
else if (entryformat == "img_png")
{
// Find existing grAb chunk
const uint8_t* data = entry->getData(true);
uint32_t grab_start = 0;
for (uint32_t a = 0; a < entry->getSize(); a++)
{
// Check for 'grAb' header
if (data[a] == 'g' && data[a + 1] == 'r' &&
data[a + 2] == 'A' && data[a + 3] == 'b')
{
grab_start = a - 4;
break;
}
// Stop when we get to the 'IDAT' chunk
if (data[a] == 'I' && data[a + 1] == 'D' &&
data[a + 2] == 'A' && data[a + 3] == 'T')
break;
}
// Create new grAb chunk
uint32_t csize = wxUINT32_SWAP_ON_LE(8);
grab_chunk_t gc ={ { 'g', 'r', 'A', 'b' }, wxINT32_SWAP_ON_LE(x), wxINT32_SWAP_ON_LE(y) };
uint32_t dcrc = wxUINT32_SWAP_ON_LE(Misc::crc((uint8_t*)&gc, 12));
// Build new PNG from the original w/ the new grAb chunk
MemChunk npng;
uint32_t rest_start = 33;
// Init new png data size
if (grab_start == 0)
npng.reSize(entry->getSize() + 20);
else
npng.reSize(entry->getSize());
// Write PNG header and IHDR chunk
npng.write(data, 33);
// If no existing grAb chunk was found, write new one here
if (grab_start == 0)
{
npng.write(&csize, 4);
npng.write(&gc, 12);
npng.write(&dcrc, 4);
}
else
{
// Otherwise write any other data before the existing grAb chunk
uint32_t to_write = grab_start - 33;
npng.write(data + 33, to_write);
rest_start = grab_start + 20;
// And now write the new grAb chunk
npng.write(&csize, 4);
npng.write(&gc, 12);
npng.write(&dcrc, 4);
}
// Write the rest of the PNG data
uint32_t to_write = entry->getSize() - rest_start;
npng.write(data + rest_start, to_write);
// Load new png data to the entry
entry->importMemChunk(npng);
// Set its type back to png
entry->setType(type);
}
else
return false;
return true;
}
void Extract(bool bits16,
bool sign,
bool stereo,
bool bigendian,
bool offset,
char *rawData, int dataSize,
float *data1, float *data2, int *len1, int *len2)
{
int rawCount = 0;
int dataCount1 = 0;
int dataCount2 = 0;
int i;
*len1 = 0;
*len2 = 0;
if (offset && bits16) {
/* Special case so as to not flip stereo channels during analysis */
if (stereo && !bigendian) {
rawData += 3;
dataSize -= 3;
}
else {
rawData++;
dataSize--;
}
}
if (bits16) {
if (sign && bigendian)
while (rawCount + 1 < dataSize) {
/* 16-bit signed BE */
data1[dataCount1] =
(wxINT16_SWAP_ON_LE(*((signed short *)
&rawData[rawCount])))
/ 32768.0;
dataCount1++;
rawCount += 2;
}
if (!sign && bigendian)
while (rawCount + 1 < dataSize) {
/* 16-bit unsigned BE */
data1[dataCount1] =
(wxUINT16_SWAP_ON_LE(*((unsigned short *)
&rawData[rawCount])))
/ 32768.0 - 1.0;
dataCount1++;
rawCount += 2;
}
if (sign && !bigendian)
while (rawCount + 1 < dataSize) {
/* 16-bit signed LE */
data1[dataCount1] =
(wxINT16_SWAP_ON_BE(*((signed short *)
&rawData[rawCount])))
/ 32768.0;
dataCount1++;
rawCount += 2;
}
if (!sign && !bigendian)
while (rawCount + 1 < dataSize) {
/* 16-bit unsigned LE */
data1[dataCount1] =
(wxUINT16_SWAP_ON_BE(*((unsigned short *)
&rawData[rawCount])))
/ 32768.0 - 1.0;
dataCount1++;
rawCount += 2;
}
}
else {
/* 8-bit */
if (sign) {
while (rawCount < dataSize) {
/* 8-bit signed */
data1[dataCount1++] =
(*(signed char *) (&rawData[rawCount++])) / 128.0;
}
}
else {
while (rawCount < dataSize) {
/* 8-bit unsigned */
data1[dataCount1++] =
(*(unsigned char *) &rawData[rawCount++]) / 128.0 - 1.0;
}
}
}
if (stereo) {
dataCount1 /= 2;
for(i=0; i<dataCount1; i++) {
data2[i] = data1[2*i+1];
data1[i] = data1[2*i];
}
dataCount2 = dataCount1;
}
*len1 = dataCount1;
*len2 = dataCount2;
}
bool ExportCL(AudacityProject *project, bool stereo, wxString fName,
bool selectionOnly, double t0, double t1)
{
int rate = int(project->GetRate() + 0.5);
wxWindow *parent = project;
TrackList *tracks = project->GetTracks();
wxString command = gPrefs->Read("/FileFormats/ExternalProgramExportCommand", "lame - '%f'");
command.Replace("%f", fName);
/* establish parameters */
int channels = stereo ? 2 : 1;
unsigned long totalSamples = (unsigned long)((t1 - t0) * rate + 0.5);
unsigned long sampleBytes = totalSamples * channels * SAMPLE_SIZE(int16Sample);
double timeStep = 10.0; // write in blocks of 10 secs
/* fill up the wav header */
wav_header header;
header.riffID[0] = 'R';
header.riffID[1] = 'I';
header.riffID[2] = 'F';
header.riffID[3] = 'F';
header.riffType[0] = 'W';
header.riffType[1] = 'A';
header.riffType[2] = 'V';
header.riffType[3] = 'E';
header.lenAfterRiff = sampleBytes + 32;
header.fmtID[0] = 'f';
header.fmtID[1] = 'm';
header.fmtID[2] = 't';
header.fmtID[3] = ' ';
header.formatChunkLen = 16;
header.formatTag = 1;
header.channels = channels;
header.sampleRate = rate;
header.bitsPerSample = SAMPLE_SIZE(int16Sample) * 8;
header.blockAlign = header.bitsPerSample * header.channels;
header.avgBytesPerSec = header.sampleRate * header.blockAlign;
header.dataID[0] = 'd';
header.dataID[1] = 'a';
header.dataID[2] = 't';
header.dataID[3] = 'a';
header.dataLen = sampleBytes;
FILE *pipe = popen(command.c_str(), "w");
/* write the header */
fwrite( &header, sizeof(wav_header), 1, pipe );
//sampleCount maxSamples = int (timeStep * rate + 0.5);
wxProgressDialog *progress = NULL;
wxYield();
wxStartTimer();
wxBusyCursor busy;
bool cancelling = false;
double t = t0;
while (t < t1 && !cancelling) {
double deltat = timeStep;
if (t + deltat > t1)
deltat = t1 - t;
sampleCount numSamples = int (deltat * rate + 0.5);
Mixer *mixer = new Mixer(channels, numSamples, true, rate, int16Sample);
wxASSERT(mixer);
mixer->Clear();
char *buffer = new char[numSamples * SAMPLE_SIZE(int16Sample) * channels];
wxASSERT(buffer);
TrackListIterator iter(tracks);
VTrack *tr = iter.First();
while (tr) {
if (tr->GetKind() == VTrack::Wave) {
if (tr->GetSelected() || !selectionOnly) {
if (tr->GetChannel() == VTrack::MonoChannel)
mixer->MixMono((WaveTrack *) tr, t, t + deltat);
if (tr->GetChannel() == VTrack::LeftChannel)
mixer->MixLeft((WaveTrack *) tr, t, t + deltat);
if (tr->GetChannel() == VTrack::RightChannel)
mixer->MixRight((WaveTrack *) tr, t, t + deltat);
}
}
tr = iter.Next();
}
samplePtr mixed = mixer->GetBuffer();
// Byte-swapping is neccesary on big-endian machines, since
// WAV files are little-endian
#if wxBYTE_ORDER == wxBIG_ENDIAN
{
short *buffer = (short*)mixed;
for( int i = 0; i < numSamples; i++ )
buffer[i] = wxINT16_SWAP_ON_BE(buffer[i]);
}
#endif
fwrite( mixed, numSamples * channels * SAMPLE_SIZE(int16Sample), 1, pipe );
t += deltat;
if (!progress && wxGetElapsedTime(false) > 500) {
wxString message;
if (selectionOnly)
message = "Exporting the selected audio using command-line encoder";
else
message = "Exporting the entire project using command-line encoder";
progress =
new wxProgressDialog("Export",
message,
1000,
parent,
wxPD_CAN_ABORT |
wxPD_REMAINING_TIME | wxPD_AUTO_HIDE);
}
if (progress) {
cancelling =
!progress->Update(int (((t - t0) * 1000) / (t1 - t0) + 0.5));
}
delete mixer;
delete[]buffer;
}
pclose( pipe );
if(progress)
delete progress;
return true;
}
bool ExportCL(AudacityProject *project, bool stereo, wxString fName,
bool selectionOnly, double t0, double t1, MixerSpec *mixerSpec)
{
int rate = int(project->GetRate() + 0.5);
wxWindow *parent = project;
TrackList *tracks = project->GetTracks();
wxString command = gPrefs->Read(wxT("/FileFormats/ExternalProgramExportCommand"), wxT("lame - '%f'"));
command.Replace(wxT("%f"), fName);
/* establish parameters */
int channels = stereo ? 2 : 1;
unsigned long totalSamples = (unsigned long)((t1 - t0) * rate + 0.5);
unsigned long sampleBytes = totalSamples * channels * SAMPLE_SIZE(int16Sample);
/* fill up the wav header */
wav_header header;
header.riffID[0] = 'R';
header.riffID[1] = 'I';
header.riffID[2] = 'F';
header.riffID[3] = 'F';
header.riffType[0] = 'W';
header.riffType[1] = 'A';
header.riffType[2] = 'V';
header.riffType[3] = 'E';
header.lenAfterRiff = sampleBytes + 32;
header.fmtID[0] = 'f';
header.fmtID[1] = 'm';
header.fmtID[2] = 't';
header.fmtID[3] = ' ';
header.formatChunkLen = 16;
header.formatTag = 1;
header.channels = channels;
header.sampleRate = rate;
header.bitsPerSample = SAMPLE_SIZE(int16Sample) * 8;
header.blockAlign = header.bitsPerSample * header.channels;
header.avgBytesPerSec = header.sampleRate * header.blockAlign;
header.dataID[0] = 'd';
header.dataID[1] = 'a';
header.dataID[2] = 't';
header.dataID[3] = 'a';
header.dataLen = sampleBytes;
FILE *pipe = popen(OSFILENAME(command), "w");
/* write the header */
fwrite( &header, sizeof(wav_header), 1, pipe );
sampleCount maxBlockLen = 44100 * 5;
bool cancelling = false;
int numWaveTracks;
WaveTrack **waveTracks;
tracks->GetWaveTracks(selectionOnly, &numWaveTracks, &waveTracks);
Mixer *mixer = new Mixer(numWaveTracks, waveTracks,
tracks->GetTimeTrack(),
t0, t1,
channels, maxBlockLen, true,
rate, int16Sample, true, mixerSpec);
GetActiveProject()->ProgressShow(_("Export"),
selectionOnly ?
_("Exporting the selected audio using command-line encoder") :
_("Exporting the entire project using command-line encoder"));
while(!cancelling) {
sampleCount numSamples = mixer->Process(maxBlockLen);
if (numSamples == 0)
break;
samplePtr mixed = mixer->GetBuffer();
char *buffer = new char[numSamples * SAMPLE_SIZE(int16Sample) * channels];
wxASSERT(buffer);
// Byte-swapping is neccesary on big-endian machines, since
// WAV files are little-endian
#if wxBYTE_ORDER == wxBIG_ENDIAN
{
short *buffer = (short*)mixed;
for( int i = 0; i < numSamples; i++ )
buffer[i] = wxINT16_SWAP_ON_BE(buffer[i]);
}
#endif
fwrite( mixed, numSamples * channels * SAMPLE_SIZE(int16Sample), 1, pipe );
int progressvalue = int (1000 * ((mixer->MixGetCurrentTime()-t0) /
(t1-t0)));
cancelling = !GetActiveProject()->ProgressUpdate(progressvalue);
delete[]buffer;
}
GetActiveProject()->ProgressHide();
delete mixer;
pclose( pipe );
return true;
}