int EXRFile::OpenOutputFile(const char* i_fileName)
{
m_file = fopen(i_fileName, "wb");
if (!m_file)
{
return IMF_ERROR_ERROR;
}
m_channelList = new ChannelList(*m_header->GetChannelList());
m_channelList->Sort();
m_header->GetAttribute("dataWindow", "box2i", (char*)&m_dataWindow[0]);
m_header->GetAttribute("compression", "compression", (char*)&m_compression);
int width = m_dataWindow[2] - m_dataWindow[0] + 1;
size_t datasize = m_channelList->GetPixelSize() * width;
if (m_compression == IMF_ZIP_COMPRESSION)
{
m_scanline_block =
new ScanLineZipBlock(
m_file,
datasize,
m_dataWindow[1]);
}
else
{
m_scanline_block =
new ScanLineBlock(
m_file,
datasize,
m_dataWindow[1]);
}
int height = m_dataWindow[3] - m_dataWindow[1] + 1;
m_blocks = height / m_scanline_block->NumLinesInBlock();
m_blocks += height % m_scanline_block->NumLinesInBlock() > 0;
m_offset_table = new uint64_t [m_blocks];
m_offset_table_counter = 0;
WriteMagic();
WriteVersion();
WriteHeader();
WriteZerroOffsets();
return IMF_ERROR_NOERROR;
}
int EXRFile::OpenOutputFile(const char* i_fileName)
{
m_file = fopen(i_fileName, "wb");
if (!m_file)
{
return IMF_ERROR_ERROR;
}
m_channelList = new ChannelList(*m_header->GetChannelList());
m_channelList->Sort();
m_header->GetAttribute("dataWindow", "box2i", (char*)&m_dataWindow[0]);
m_header->GetAttribute("compression", "compression", (char*)&m_compression);
/* TODO: Get and use length of the attribute */
char type[256];
const char* deepscanline = "deepscanline";
m_header->GetAttribute("type", "string", type);
if (strncmp(type, deepscanline, strlen(deepscanline)) == 0)
{
m_dataType = IMF_DEEPSCANLINE;
}
else
{
m_dataType = IMF_SCANLINEIMAGE;
}
int width = m_dataWindow[2] - m_dataWindow[0] + 1;
size_t datasize = m_channelList->GetPixelSize() * width;
if( m_dataType == IMF_DEEPSCANLINE )
{
if (m_compression == IMF_ZIPS_COMPRESSION)
{
m_scanline_block =
new ScanLineDeepZipSBlock(
m_file,
width * sizeof(m_fb_sampleCount[0]),
m_channelList->GetPixelSize(),
m_dataWindow[1]);
}
else
{
m_scanline_block =
new ScanLineDeepBlock(
m_file,
width * sizeof(m_fb_sampleCount[0]),
m_channelList->GetPixelSize(),
m_dataWindow[1]);
}
}
else
switch( m_compression )
{
case IMF_ZIP_COMPRESSION:
m_scanline_block =
new ScanLineZipBlock(
m_file,
datasize,
m_dataWindow[1],
ScanLineZipBlock::kDefaultBlockSize);
break;
case IMF_ZIPS_COMPRESSION:
m_scanline_block =
new ScanLineZipBlock(
m_file,
datasize,
m_dataWindow[1],
1);
break;
default:
m_scanline_block =
new ScanLineBlock(
m_file,
datasize,
m_dataWindow[1]);
}
int height = m_dataWindow[3] - m_dataWindow[1] + 1;
m_blocks = height / m_scanline_block->NumLinesInBlock();
m_blocks += height % m_scanline_block->NumLinesInBlock() > 0;
m_offset_table = new uint64_t [m_blocks];
// Initialize table to 0, so that valgrind doesn't complain about writing it out to file before we initialize it
for( int i = 0; i < m_blocks; i++ ) m_offset_table[i] = 0;
m_offset_table_counter = 0;
WriteMagic();
WriteVersion();
WriteHeader();
WriteZerroOffsets();
return IMF_ERROR_NOERROR;
}
