/** \brief Convert an OpenEXR header to our own header representation.
*
* \param exrHeader - input header
* \param header - output header
*/
void convertHeader(const Imf::Header& exrHeader, CqTexFileHeader& header)
{
// Set width, height
const Imath::Box2i& dataBox = exrHeader.dataWindow();
header.setWidth(dataBox.max.x - dataBox.min.x+1);
header.setHeight(dataBox.max.y - dataBox.min.y+1);
// display window
const Imath::Box2i& displayBox = exrHeader.displayWindow();
header.set<Attr::DisplayWindow>( SqImageRegion(
displayBox.max.x - displayBox.min.x,
displayBox.max.y - displayBox.min.y,
displayBox.min.x - dataBox.min.x,
displayBox.min.y - dataBox.min.y) );
// Set tiling information ?
// Aspect ratio
header.set<Attr::PixelAspectRatio>(exrHeader.pixelAspectRatio());
TqChannelNameMap channelNameMap;
// Convert channel representation
const Imf::ChannelList& exrChannels = exrHeader.channels();
CqChannelList& channels = header.channelList();
for(Imf::ChannelList::ConstIterator i = exrChannels.begin();
i != exrChannels.end(); ++i)
{
// use lower case names for channels; OpenEXR uses upper case.
std::string chanName = i.name();
std::transform(chanName.begin(), chanName.end(), chanName.begin(),
::tolower);
channelNameMap[chanName] = i.name();
channels.addChannel( SqChannelInfo(chanName,
channelTypeFromExr(i.channel().type)) );
}
header.set<Attr::ExrChannelNameMap>(channelNameMap);
channels.reorderChannels();
// Set compresssion type
header.set<Attr::Compression>(exrCompressionToString(exrHeader.compression()));
}
void
OpenEXRInput::PartInfo::query_channels (const Imf::Header *header)
{
ASSERT (! initialized);
spec.nchannels = 0;
const Imf::ChannelList &channels (header->channels());
std::vector<std::string> channelnames; // Order of channels in file
std::vector<ChanNameHolder> cnh;
int c = 0;
for (Imf::ChannelList::ConstIterator ci = channels.begin();
ci != channels.end(); ++c, ++ci) {
cnh.emplace_back (ci.name(), c, ci.channel().type);
++spec.nchannels;
}
std::sort (cnh.begin(), cnh.end(), ChanNameHolder::compare_cnh);
// Now we should have cnh sorted into the order that we want to present
// to the OIIO client.
spec.format = TypeDesc::UNKNOWN;
bool all_one_format = true;
for (int c = 0; c < spec.nchannels; ++c) {
spec.channelnames.push_back (cnh[c].fullname);
spec.channelformats.push_back (cnh[c].datatype);
spec.format = TypeDesc(ImageBufAlgo::type_merge (TypeDesc::BASETYPE(spec.format.basetype),
TypeDesc::BASETYPE(cnh[c].datatype.basetype)));
pixeltype.push_back (cnh[c].exr_data_type);
chanbytes.push_back (cnh[c].datatype.size());
all_one_format &= (cnh[c].datatype == cnh[0].datatype);
if (spec.alpha_channel < 0 && (Strutil::iequals (cnh[c].suffix, "A") ||
Strutil::iequals (cnh[c].suffix, "Alpha")))
spec.alpha_channel = c;
if (spec.z_channel < 0 && (Strutil::iequals (cnh[c].suffix, "Z") ||
Strutil::iequals (cnh[c].suffix, "Depth")))
spec.z_channel = c;
}
ASSERT ((int)spec.channelnames.size() == spec.nchannels);
ASSERT (spec.format != TypeDesc::UNKNOWN);
if (all_one_format)
spec.channelformats.clear();
}
NORI_NAMESPACE_BEGIN
Bitmap::Bitmap(const std::string &filename) {
Imf::InputFile file(filename.c_str());
const Imf::Header &header = file.header();
const Imf::ChannelList &channels = header.channels();
Imath::Box2i dw = file.header().dataWindow();
resize(dw.max.y - dw.min.y + 1, dw.max.x - dw.min.x + 1);
cout << "Reading a " << cols() << "x" << rows() << " OpenEXR file from \""
<< filename << "\"" << endl;
const char *ch_r = nullptr, *ch_g = nullptr, *ch_b = nullptr;
for (Imf::ChannelList::ConstIterator it = channels.begin(); it != channels.end(); ++it) {
std::string name = toLower(it.name());
if (it.channel().xSampling != 1 || it.channel().ySampling != 1) {
/* Sub-sampled layers are not supported */
continue;
}
if (!ch_r && (name == "r" || name == "red" ||
endsWith(name, ".r") || endsWith(name, ".red"))) {
ch_r = it.name();
} else if (!ch_g && (name == "g" || name == "green" ||
endsWith(name, ".g") || endsWith(name, ".green"))) {
ch_g = it.name();
} else if (!ch_b && (name == "b" || name == "blue" ||
endsWith(name, ".b") || endsWith(name, ".blue"))) {
ch_b = it.name();
}
}
if (!ch_r || !ch_g || !ch_b)
throw NoriException("This is not a standard RGB OpenEXR file!");
size_t compStride = sizeof(float),
pixelStride = 3 * compStride,
rowStride = pixelStride * cols();
char *ptr = reinterpret_cast<char *>(data());
Imf::FrameBuffer frameBuffer;
frameBuffer.insert(ch_r, Imf::Slice(Imf::FLOAT, ptr, pixelStride, rowStride)); ptr += compStride;
frameBuffer.insert(ch_g, Imf::Slice(Imf::FLOAT, ptr, pixelStride, rowStride)); ptr += compStride;
frameBuffer.insert(ch_b, Imf::Slice(Imf::FLOAT, ptr, pixelStride, rowStride));
file.setFrameBuffer(frameBuffer);
file.readPixels(dw.min.y, dw.max.y);
m_totalLuminance = getTotalLuminace();
}
static FIBITMAP * DLL_CALLCONV
Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
bool bUseRgbaInterface = false;
FIBITMAP *dib = NULL;
if(!handle) {
return NULL;
}
try {
BOOL header_only = (flags & FIF_LOAD_NOPIXELS) == FIF_LOAD_NOPIXELS;
// save the stream starting point
const long stream_start = io->tell_proc(handle);
// wrap the FreeImage IO stream
C_IStream istream(io, handle);
// open the file
Imf::InputFile file(istream);
// get file info
const Imath::Box2i &dataWindow = file.header().dataWindow();
int width = dataWindow.max.x - dataWindow.min.x + 1;
int height = dataWindow.max.y - dataWindow.min.y + 1;
//const Imf::Compression &compression = file.header().compression();
const Imf::ChannelList &channels = file.header().channels();
// check the number of components and check for a coherent format
std::string exr_color_model;
Imf::PixelType pixel_type = Imf::HALF;
FREE_IMAGE_TYPE image_type = FIT_UNKNOWN;
int components = 0;
bool bMixedComponents = false;
for (Imf::ChannelList::ConstIterator i = channels.begin(); i != channels.end(); ++i) {
components++;
if(components == 1) {
exr_color_model += i.name();
pixel_type = i.channel().type;
} else {
exr_color_model += "/";
exr_color_model += i.name();
if (i.channel().type != pixel_type) {
bMixedComponents = true;
}
}
}
if(bMixedComponents) {
bool bHandled = false;
// we may have a RGBZ or RGBAZ image ...
if(components > 4) {
if(channels.findChannel("R") && channels.findChannel("G") && channels.findChannel("B") && channels.findChannel("A")) {
std::string msg = "Warning: converting color model " + exr_color_model + " to RGBA color model";
FreeImage_OutputMessageProc(s_format_id, msg.c_str());
bHandled = true;
}
}
else if(components > 3) {
if(channels.findChannel("R") && channels.findChannel("G") && channels.findChannel("B")) {
std::string msg = "Warning: converting color model " + exr_color_model + " to RGB color model";
FreeImage_OutputMessageProc(s_format_id, msg.c_str());
bHandled = true;
}
}
if(!bHandled) {
THROW (Iex::InputExc, "Unable to handle mixed component types (color model = " << exr_color_model << ")");
}
}
switch(pixel_type) {
case Imf::UINT:
THROW (Iex::InputExc, "Unsupported format: UINT");
break;
case Imf::HALF:
case Imf::FLOAT:
default:
break;
}
// check for supported image color models
// --------------------------------------------------------------
if((components == 1) || (components == 2)) {
// if the image is gray-alpha (YA), ignore the alpha channel
if((components == 1) && channels.findChannel("Y")) {
image_type = FIT_FLOAT;
components = 1;
} else {
std::string msg = "Warning: loading color model " + exr_color_model + " as Y color model";
FreeImage_OutputMessageProc(s_format_id, msg.c_str());
image_type = FIT_FLOAT;
// ignore the other channel
components = 1;
}
} else if(components == 3) {
if(channels.findChannel("R") && channels.findChannel("G") && channels.findChannel("B")) {
image_type = FIT_RGBF;
}
else if(channels.findChannel("BY") && channels.findChannel("RY") && channels.findChannel("Y")) {
image_type = FIT_RGBF;
bUseRgbaInterface = true;
}
} else if(components >= 4) {
if(channels.findChannel("R") && channels.findChannel("G") && channels.findChannel("B")) {
if(channels.findChannel("A")) {
if(components > 4) {
std::string msg = "Warning: converting color model " + exr_color_model + " to RGBA color model";
FreeImage_OutputMessageProc(s_format_id, msg.c_str());
}
image_type = FIT_RGBAF;
// ignore other layers if there is more than one alpha layer
components = 4;
} else {
std::string msg = "Warning: converting color model " + exr_color_model + " to RGB color model";
FreeImage_OutputMessageProc(s_format_id, msg.c_str());
image_type = FIT_RGBF;
// ignore other channels
components = 3;
}
}
}
if(image_type == FIT_UNKNOWN) {
THROW (Iex::InputExc, "Unsupported color model: " << exr_color_model);
}
// allocate a new dib
dib = FreeImage_AllocateHeaderT(header_only, image_type, width, height, 0);
if(!dib) THROW (Iex::NullExc, FI_MSG_ERROR_MEMORY);
// try to load the preview image
// --------------------------------------------------------------
if(file.header().hasPreviewImage()) {
const Imf::PreviewImage& preview = file.header().previewImage();
const unsigned thWidth = preview.width();
const unsigned thHeight = preview.height();
FIBITMAP* thumbnail = FreeImage_Allocate(thWidth, thHeight, 32);
if(thumbnail) {
const Imf::PreviewRgba *src_line = preview.pixels();
BYTE *dst_line = FreeImage_GetScanLine(thumbnail, thHeight - 1);
const unsigned dstPitch = FreeImage_GetPitch(thumbnail);
for (unsigned y = 0; y < thHeight; ++y) {
const Imf::PreviewRgba *src_pixel = src_line;
RGBQUAD* dst_pixel = (RGBQUAD*)dst_line;
for(unsigned x = 0; x < thWidth; ++x) {
dst_pixel->rgbRed = src_pixel->r;
dst_pixel->rgbGreen = src_pixel->g;
dst_pixel->rgbBlue = src_pixel->b;
dst_pixel->rgbReserved = src_pixel->a;
src_pixel++;
dst_pixel++;
}
src_line += thWidth;
dst_line -= dstPitch;
}
FreeImage_SetThumbnail(dib, thumbnail);
FreeImage_Unload(thumbnail);
}
}
if(header_only) {
// header only mode
return dib;
}
// load pixels
// --------------------------------------------------------------
const BYTE *bits = FreeImage_GetBits(dib); // pointer to our pixel buffer
const size_t bytespp = sizeof(float) * components; // size of our pixel in bytes
const unsigned pitch = FreeImage_GetPitch(dib); // size of our yStride in bytes
Imf::PixelType pixelType = Imf::FLOAT; // load as float data type;
if(bUseRgbaInterface) {
// use the RGBA interface (used when loading RY BY Y images )
const int chunk_size = 16;
BYTE *scanline = (BYTE*)bits;
// re-open using the RGBA interface
io->seek_proc(handle, stream_start, SEEK_SET);
Imf::RgbaInputFile rgbaFile(istream);
// read the file in chunks
Imath::Box2i dw = dataWindow;
Imf::Array2D<Imf::Rgba> chunk(chunk_size, width);
while (dw.min.y <= dw.max.y) {
// read a chunk
rgbaFile.setFrameBuffer (&chunk[0][0] - dw.min.x - dw.min.y * width, 1, width);
rgbaFile.readPixels (dw.min.y, MIN(dw.min.y + chunk_size - 1, dw.max.y));
// fill the dib
const int y_max = ((dw.max.y - dw.min.y) <= chunk_size) ? (dw.max.y - dw.min.y) : chunk_size;
for(int y = 0; y < y_max; y++) {
FIRGBF *pixel = (FIRGBF*)scanline;
const Imf::Rgba *half_rgba = chunk[y];
for(int x = 0; x < width; x++) {
// convert from half to float
pixel[x].red = half_rgba[x].r;
pixel[x].green = half_rgba[x].g;
pixel[x].blue = half_rgba[x].b;
}
// next line
scanline += pitch;
}
// next chunk
dw.min.y += chunk_size;
}
} else {
// use the low level interface
// build a frame buffer (i.e. what we want on output)
Imf::FrameBuffer frameBuffer;
// allow dataWindow with minimal bounds different form zero
size_t offset = - dataWindow.min.x * bytespp - dataWindow.min.y * pitch;
if(components == 1) {
frameBuffer.insert ("Y", // name
Imf::Slice (pixelType, // type
(char*)(bits + offset), // base
bytespp, // xStride
pitch, // yStride
1, 1, // x/y sampling
0.0)); // fillValue
} else if((components == 3) || (components == 4)) {
const char *channel_name[4] = { "R", "G", "B", "A" };
for(int c = 0; c < components; c++) {
frameBuffer.insert (
channel_name[c], // name
Imf::Slice (pixelType, // type
(char*)(bits + c * sizeof(float) + offset), // base
bytespp, // xStride
pitch, // yStride
1, 1, // x/y sampling
0.0)); // fillValue
}
}
// read the file
file.setFrameBuffer(frameBuffer);
file.readPixels(dataWindow.min.y, dataWindow.max.y);
}
// lastly, flip dib lines
FreeImage_FlipVertical(dib);
}
catch(Iex::BaseExc & e) {
if(dib != NULL) {
FreeImage_Unload(dib);
}
FreeImage_OutputMessageProc(s_format_id, e.what());
return NULL;
}
return dib;
}
void
OpenEXRInput::PartInfo::query_channels (const Imf::Header *header)
{
ASSERT (! initialized);
spec.nchannels = 0;
const Imf::ChannelList &channels (header->channels());
std::vector<std::string> channelnames; // Order of channels in file
std::vector<ChanNameHolder> cnh;
int c = 0;
for (Imf::ChannelList::ConstIterator ci = channels.begin();
ci != channels.end(); ++c, ++ci) {
cnh.push_back (ChanNameHolder (ci.name(), c));
++spec.nchannels;
}
std::sort (cnh.begin(), cnh.end(), ChanNameHolder::compare_cnh);
c = 0;
for (Imf::ChannelList::ConstIterator ci = channels.begin();
ci != channels.end(); ++c, ++ci) {
spec.channelnames.push_back (cnh[c].fullname);
if (spec.alpha_channel < 0 && (Strutil::iequals (cnh[c].suffix, "A") ||
Strutil::iequals (cnh[c].suffix, "Alpha")))
spec.alpha_channel = c;
if (spec.z_channel < 0 && (Strutil::iequals (cnh[c].suffix, "Z") ||
Strutil::iequals (cnh[c].suffix, "Depth")))
spec.z_channel = c;
}
ASSERT ((int)spec.channelnames.size() == spec.nchannels);
// Figure out data types -- choose the highest range
spec.format = TypeDesc::UNKNOWN;
std::vector<TypeDesc> chanformat;
c = 0;
for (Imf::ChannelList::ConstIterator ci = channels.begin();
ci != channels.end(); ++c, ++ci) {
Imf::PixelType ptype = ci.channel().type;
TypeDesc fmt = TypeDesc::HALF;
switch (ptype) {
case Imf::UINT :
fmt = TypeDesc::UINT;
if (spec.format == TypeDesc::UNKNOWN)
spec.format = TypeDesc::UINT;
break;
case Imf::HALF :
fmt = TypeDesc::HALF;
if (spec.format != TypeDesc::FLOAT)
spec.format = TypeDesc::HALF;
break;
case Imf::FLOAT :
fmt = TypeDesc::FLOAT;
spec.format = TypeDesc::FLOAT;
break;
default: ASSERT (0);
}
pixeltype.push_back (ptype);
chanbytes.push_back (fmt.size());
if (chanformat.size() == 0)
chanformat.resize (spec.nchannels, fmt);
for (int i = 0; i < spec.nchannels; ++i) {
ASSERT ((int)spec.channelnames.size() > i);
if (spec.channelnames[i] == ci.name()) {
chanformat[i] = fmt;
break;
}
}
}
ASSERT (spec.format != TypeDesc::UNKNOWN);
bool differing_chanformats = false;
for (int c = 1; c < spec.nchannels; ++c)
differing_chanformats |= (chanformat[c] != chanformat[0]);
if (differing_chanformats)
spec.channelformats = chanformat;
}
void
OpenEXRInput::PartInfo::query_channels (const Imf::Header *header)
{
ASSERT (! initialized);
spec.nchannels = 0;
const Imf::ChannelList &channels (header->channels());
std::vector<std::string> channelnames; // Order of channels in file
std::vector<int> userchannels; // Map file chans to user chans
Imf::ChannelList::ConstIterator ci;
int c;
int red = -1, green = -1, blue = -1, alpha = -1, zee = -1;
for (c = 0, ci = channels.begin(); ci != channels.end(); ++c, ++ci) {
const char* name = ci.name();
channelnames.push_back (name);
if (red < 0 && (Strutil::iequals(name, "R") || Strutil::iequals(name, "Red") ||
Strutil::iends_with(name,".R") || Strutil::iends_with(name,".Red") ||
Strutil::iequals(name, "real")))
red = c;
if (green < 0 && (Strutil::iequals(name, "G") || Strutil::iequals(name, "Green") ||
Strutil::iends_with(name,".G") || Strutil::iends_with(name,".Green") ||
Strutil::iequals(name, "imag")))
green = c;
if (blue < 0 && (Strutil::iequals(name, "B") || Strutil::iequals(name, "Blue") ||
Strutil::iends_with(name,".B") || Strutil::iends_with(name,".Blue")))
blue = c;
if (alpha < 0 && (Strutil::iequals(name, "A") || Strutil::iequals(name, "Alpha") ||
Strutil::iends_with(name,".A") || Strutil::iends_with(name,".Alpha")))
alpha = c;
if (zee < 0 && (Strutil::iequals(name, "Z") || Strutil::iequals(name, "Depth") ||
Strutil::iends_with(name,".Z") || Strutil::iends_with(name,".Depth")))
zee = c;
}
spec.nchannels = (int)channelnames.size();
userchannels.resize (spec.nchannels);
int nc = 0;
if (red >= 0) {
spec.channelnames.push_back (channelnames[red]);
userchannels[red] = nc++;
}
if (green >= 0) {
spec.channelnames.push_back (channelnames[green]);
userchannels[green] = nc++;
}
if (blue >= 0) {
spec.channelnames.push_back (channelnames[blue]);
userchannels[blue] = nc++;
}
if (alpha >= 0) {
spec.channelnames.push_back (channelnames[alpha]);
spec.alpha_channel = nc;
userchannels[alpha] = nc++;
}
if (zee >= 0) {
spec.channelnames.push_back (channelnames[zee]);
spec.z_channel = nc;
userchannels[zee] = nc++;
}
for (c = 0, ci = channels.begin(); ci != channels.end(); ++c, ++ci) {
if (red == c || green == c || blue == c || alpha == c || zee == c)
continue; // Already accounted for this channel
userchannels[c] = nc;
spec.channelnames.push_back (ci.name());
++nc;
}
ASSERT ((int)spec.channelnames.size() == spec.nchannels);
// FIXME: should we also figure out the layers?
// Figure out data types -- choose the highest range
spec.format = TypeDesc::UNKNOWN;
std::vector<TypeDesc> chanformat;
for (c = 0, ci = channels.begin(); ci != channels.end(); ++c, ++ci) {
Imf::PixelType ptype = ci.channel().type;
TypeDesc fmt = TypeDesc::HALF;
switch (ptype) {
case Imf::UINT :
fmt = TypeDesc::UINT;
if (spec.format == TypeDesc::UNKNOWN)
spec.format = TypeDesc::UINT;
break;
case Imf::HALF :
fmt = TypeDesc::HALF;
if (spec.format != TypeDesc::FLOAT)
spec.format = TypeDesc::HALF;
break;
case Imf::FLOAT :
fmt = TypeDesc::FLOAT;
spec.format = TypeDesc::FLOAT;
break;
default: ASSERT (0);
}
pixeltype.push_back (ptype);
chanbytes.push_back (fmt.size());
if (chanformat.size() == 0)
chanformat.resize (spec.nchannels, fmt);
for (int i = 0; i < spec.nchannels; ++i) {
ASSERT ((int)spec.channelnames.size() > i);
if (spec.channelnames[i] == ci.name()) {
chanformat[i] = fmt;
break;
}
}
}
ASSERT (spec.format != TypeDesc::UNKNOWN);
bool differing_chanformats = false;
for (int c = 1; c < spec.nchannels; ++c)
differing_chanformats |= (chanformat[c] != chanformat[0]);
if (differing_chanformats)
spec.channelformats = chanformat;
}
// All the work is done here
int joinEXRs( int tilesX, int tilesY, const char* baseName, bool deleteTiles, bool Verbose )
{
int exitCode = 0;
// Expand names
if( Verbose ) printf("Image file name = '%s', tilesX=%d, tilesY=%d\n", baseName, tilesX, tilesY);
int numTiles = tilesX * tilesY;
// Allocate memory:
char ** tileNames = new char * [numTiles];
Imf::InputFile ** iFiles = new Imf::InputFile * [numTiles];
for( int i = 0; i < numTiles; i++)
{
tileNames[i] = new char[FILENAME_MAXLEN];
iFiles[i] = 0;
}
// Insert tile info and check if files exist
int nonEmptyTile = -1;
struct stat stFileInfo;
for( int i = 0; i < numTiles; i++)
{
sprintf( tileNames[i], "%s.tile_%d.exr", baseName, i);
if( Verbose ) printf("Tile name %d = '%s'\n", i, tileNames[i]);
if( stat( tileNames[i], &stFileInfo ) == 0 )
{
// File exists - so open it and check for validness
iFiles[i] = new Imf::InputFile( tileNames[i]);
if( false == iFiles[i]->isComplete())
{
fprintf( stderr, "Error: File '%s' is incomplete or is not an OpenEXR file.\n", tileNames[i]); fflush( stderr);
delete iFiles[i];
iFiles[i] = 0;
exitCode = 1;
}
else if( nonEmptyTile == -1 )
{
nonEmptyTile = i;
}
}
else
{
fprintf( stderr, "Error: File '%s' not founded.\n", tileNames[i]); fflush( stderr);
exitCode = 1;
}
}
if( nonEmptyTile < 0) // All tiles were empty
{
fprintf( stderr, "Error: No tile files founded.\n"); fflush( stderr);
}
else
{
// Gather info from a non-empty tile file
Imf::Header inHeader = iFiles[nonEmptyTile]->header();
Imath::Box2i imageBox = inHeader.displayWindow(); // size of the resulting image
int imageWidth = imageBox.max.x - imageBox.min.x + 1;
int imageHeight = imageBox.max.y - imageBox.min.y + 1;
// Iterate through all the channels and reserve mem for the whole display window
// also add channels to the header of the output file
Imf::Header outHeader( imageWidth, imageHeight);
std::map< Imf::Name, ChannelInfo* > chInfos; // this will hold pixel data and stride for each channel in input files
Imf::ChannelList channels = inHeader.channels();
Imf::ChannelList::ConstIterator itCh;
for( itCh = channels.begin(); itCh != channels.end(); itCh++ )
{
chInfos[itCh.name()] = new ChannelInfo( typeSize( itCh.channel().type), imageHeight, imageWidth );
outHeader.channels().insert( itCh.name(), Imf::Channel( itCh.channel().type));
if( Verbose) printf("Channel: '%s' | stride: %d\n", itCh.name(), typeSize( itCh.channel().type));
}
// Collect data from files
Imath::Box2i tileBox; // each tile's data window
Imath::Box2i resultBox; // resulting data window (should be sum of all tiles' data windows)
Imf::FrameBuffer fb;
for( int i = 0; i < numTiles; i++)
{
if( iFiles[i] == 0) // no file for this tile
continue;
tileBox = iFiles[i]->header().dataWindow();
resultBox.extendBy( tileBox );
if( Verbose) printf("Data win: xmin=%d xmax=%d ymin=%d ymax=%d\n", tileBox.min.x, tileBox.max.x, tileBox.min.y, tileBox.max.y);
channels = iFiles[i]->header().channels();
for( itCh = channels.begin(); itCh != channels.end(); itCh++ )
fb.insert( itCh.name(),
Imf::Slice( itCh.channel().type, // pixel type
(char*)&chInfos[itCh.name()]->array2d[0][0], // base
chInfos[itCh.name()]->stride, // x stride
chInfos[itCh.name()]->stride * imageWidth, // y stride
1, 1, 0.0 ) ); // x,y sampling, fill value
iFiles[i]->setFrameBuffer(fb);
iFiles[i]->readPixels( tileBox.min.y, tileBox.max.y);
}
// Write out everything:
outHeader.dataWindow() = resultBox;
Imf::OutputFile imageFile( baseName, outHeader );
imageFile.setFrameBuffer(fb);
imageFile.writePixels( resultBox.max.y-resultBox.min.y+1 );
printf("Joined EXR image successfully written.\n");
// Free files:
for( int i = 0; i < numTiles; i++)
if( iFiles[i] != 0 ) delete iFiles[i];
delete [] iFiles;
if( deleteTiles )
{
for( int i = 0; i < numTiles; i++)
if( unlink( tileNames[i]) != 0)
{
perror("Remove");
printf("Can't remove file '%s'\n", tileNames[i]);
}
}
}
// Free names:
for( int i = 0; i < numTiles; i++)
delete [] tileNames[i];
delete [] tileNames;
return exitCode;
}
void
OpenEXRInput::query_channels (void)
{
m_spec.nchannels = 0;
const Imf::ChannelList &channels (m_header->channels());
Imf::ChannelList::ConstIterator ci;
int c;
int red = -1, green = -1, blue = -1, alpha = -1, zee = -1;
for (c = 0, ci = channels.begin(); ci != channels.end(); ++c, ++ci) {
// std::cerr << "Channel " << ci.name() << '\n';
const char* name = ci.name();
m_channelnames.push_back (name);
if (red < 0 && (iequals(name, "R") || iequals(name, "Red") ||
iends_with(name,".R") || iends_with(name,".Red")))
red = c;
if (green < 0 && (iequals(name, "G") || iequals(name, "Green") ||
iends_with(name,".G") || iends_with(name,".Green")))
green = c;
if (blue < 0 && (iequals(name, "B") || iequals(name, "Blue") ||
iends_with(name,".B") || iends_with(name,".Blue")))
blue = c;
if (alpha < 0 && (iequals(name, "A") || iequals(name, "Alpha") ||
iends_with(name,".A") || iends_with(name,".Alpha")))
alpha = c;
if (zee < 0 && (iequals(name, "Z") || iequals(name, "Depth") ||
iends_with(name,".Z") || iends_with(name,".Depth")))
zee = c;
++m_spec.nchannels;
}
m_userchannels.resize (m_spec.nchannels);
int nc = 0;
if (red >= 0) {
m_spec.channelnames.push_back (m_channelnames[red]);
m_userchannels[red] = nc++;
}
if (green >= 0) {
m_spec.channelnames.push_back (m_channelnames[green]);
m_userchannels[green] = nc++;
}
if (blue >= 0) {
m_spec.channelnames.push_back (m_channelnames[blue]);
m_userchannels[blue] = nc++;
}
if (alpha >= 0) {
m_spec.channelnames.push_back (m_channelnames[alpha]);
m_spec.alpha_channel = nc;
m_userchannels[alpha] = nc++;
}
if (zee >= 0) {
m_spec.channelnames.push_back (m_channelnames[zee]);
m_spec.z_channel = nc;
m_userchannels[zee] = nc++;
}
for (c = 0, ci = channels.begin(); ci != channels.end(); ++c, ++ci) {
if (red == c || green == c || blue == c || alpha == c || zee == c)
continue; // Already accounted for this channel
m_userchannels[c] = nc;
m_spec.channelnames.push_back (ci.name());
++nc;
}
ASSERT ((int)m_spec.channelnames.size() == m_spec.nchannels);
// FIXME: should we also figure out the layers?
// Figure out data types -- choose the highest range
m_spec.format = TypeDesc::UNKNOWN;
std::vector<TypeDesc> chanformat;
bool differing_chanformats = false;
for (c = 0, ci = channels.begin(); ci != channels.end(); ++c, ++ci) {
Imf::PixelType ptype = ci.channel().type;
TypeDesc fmt = TypeDesc::HALF;
switch (ptype) {
case Imf::UINT :
fmt = TypeDesc::UINT;
if (m_spec.format == TypeDesc::UNKNOWN)
m_spec.format = TypeDesc::UINT;
break;
case Imf::HALF :
fmt = TypeDesc::HALF;
if (m_spec.format != TypeDesc::FLOAT)
m_spec.format = TypeDesc::HALF;
break;
case Imf::FLOAT :
fmt = TypeDesc::FLOAT;
m_spec.format = TypeDesc::FLOAT;
break;
default: ASSERT (0);
}
chanformat.push_back (fmt);
m_pixeltype.push_back (ptype);
if (fmt != chanformat[0])
differing_chanformats = true;
}
ASSERT (m_spec.format != TypeDesc::UNKNOWN);
if (differing_chanformats)
m_spec.channelformats = chanformat;
}
