1107 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			1107 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
///////////////////////////////////////////////////////////////////////////
 | 
						|
//
 | 
						|
// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
 | 
						|
// Digital Ltd. LLC
 | 
						|
//
 | 
						|
// All rights reserved.
 | 
						|
//
 | 
						|
// Redistribution and use in source and binary forms, with or without
 | 
						|
// modification, are permitted provided that the following conditions are
 | 
						|
// met:
 | 
						|
// *       Redistributions of source code must retain the above copyright
 | 
						|
// notice, this list of conditions and the following disclaimer.
 | 
						|
// *       Redistributions in binary form must reproduce the above
 | 
						|
// copyright notice, this list of conditions and the following disclaimer
 | 
						|
// in the documentation and/or other materials provided with the
 | 
						|
// distribution.
 | 
						|
// *       Neither the name of Industrial Light & Magic nor the names of
 | 
						|
// its contributors may be used to endorse or promote products derived
 | 
						|
// from this software without specific prior written permission.
 | 
						|
//
 | 
						|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 | 
						|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 | 
						|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 | 
						|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 | 
						|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 | 
						|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 | 
						|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 | 
						|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 | 
						|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 | 
						|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 | 
						|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 | 
						|
//
 | 
						|
///////////////////////////////////////////////////////////////////////////
 | 
						|
 | 
						|
 | 
						|
 | 
						|
//-----------------------------------------------------------------------------
 | 
						|
//
 | 
						|
//	class Header
 | 
						|
//
 | 
						|
//-----------------------------------------------------------------------------
 | 
						|
 | 
						|
#include <ImfHeader.h>
 | 
						|
#include <ImfStdIO.h>
 | 
						|
#include <ImfVersion.h>
 | 
						|
#include <ImfCompressor.h>
 | 
						|
#include <ImfMisc.h>
 | 
						|
#include <ImfBoxAttribute.h>
 | 
						|
#include <ImfChannelListAttribute.h>
 | 
						|
#include <ImfChromaticitiesAttribute.h>
 | 
						|
#include <ImfCompressionAttribute.h>
 | 
						|
#include <ImfDoubleAttribute.h>
 | 
						|
#include <ImfEnvmapAttribute.h>
 | 
						|
#include <ImfFloatAttribute.h>
 | 
						|
#include <ImfIntAttribute.h>
 | 
						|
#include <ImfKeyCodeAttribute.h>
 | 
						|
#include <ImfLineOrderAttribute.h>
 | 
						|
#include <ImfMatrixAttribute.h>
 | 
						|
#include <ImfOpaqueAttribute.h>
 | 
						|
#include <ImfPreviewImageAttribute.h>
 | 
						|
#include <ImfRationalAttribute.h>
 | 
						|
#include <ImfStringAttribute.h>
 | 
						|
#include <ImfStringVectorAttribute.h>
 | 
						|
#include <ImfTileDescriptionAttribute.h>
 | 
						|
#include <ImfTimeCodeAttribute.h>
 | 
						|
#include <ImfVecAttribute.h>
 | 
						|
#include "IlmThreadMutex.h"
 | 
						|
#include "Iex.h"
 | 
						|
#include <sstream>
 | 
						|
#include <stdlib.h>
 | 
						|
#include <time.h>
 | 
						|
 | 
						|
 | 
						|
namespace Imf {
 | 
						|
 | 
						|
using namespace std;
 | 
						|
using Imath::Box2i;
 | 
						|
using Imath::V2i;
 | 
						|
using Imath::V2f;
 | 
						|
using IlmThread::Mutex;
 | 
						|
using IlmThread::Lock;
 | 
						|
 | 
						|
 | 
						|
namespace {
 | 
						|
 | 
						|
int maxImageWidth = 0;
 | 
						|
int maxImageHeight = 0;
 | 
						|
int maxTileWidth = 0;
 | 
						|
int maxTileHeight = 0;
 | 
						|
 | 
						|
 | 
						|
void
 | 
						|
initialize (Header &header,
 | 
						|
        const Box2i &displayWindow,
 | 
						|
        const Box2i &dataWindow,
 | 
						|
        float pixelAspectRatio,
 | 
						|
        const V2f &screenWindowCenter,
 | 
						|
        float screenWindowWidth,
 | 
						|
        LineOrder lineOrder,
 | 
						|
        Compression compression)
 | 
						|
{
 | 
						|
    header.insert ("displayWindow", Box2iAttribute (displayWindow));
 | 
						|
    header.insert ("dataWindow", Box2iAttribute (dataWindow));
 | 
						|
    header.insert ("pixelAspectRatio", FloatAttribute (pixelAspectRatio));
 | 
						|
    header.insert ("screenWindowCenter", V2fAttribute (screenWindowCenter));
 | 
						|
    header.insert ("screenWindowWidth", FloatAttribute (screenWindowWidth));
 | 
						|
    header.insert ("lineOrder", LineOrderAttribute (lineOrder));
 | 
						|
    header.insert ("compression", CompressionAttribute (compression));
 | 
						|
    header.insert ("channels", ChannelListAttribute ());
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
bool
 | 
						|
usesLongNames (const Header &header)
 | 
						|
{
 | 
						|
    //
 | 
						|
    // If an OpenEXR file contains any attribute names, attribute type names
 | 
						|
    // or channel names longer than 31 characters, then the file cannot be
 | 
						|
    // read by older versions of the IlmImf library (up to OpenEXR 1.6.1).
 | 
						|
    // Before writing the file header, we check if the header contains
 | 
						|
    // any names longer than 31 characters; if it does, then we set the
 | 
						|
    // LONG_NAMES_FLAG in the file version number.  Older versions of the
 | 
						|
    // IlmImf library will refuse to read files that have the LONG_NAMES_FLAG
 | 
						|
    // set.  Without the flag, older versions of the library would mis-
 | 
						|
    // interpret the file as broken.
 | 
						|
    //
 | 
						|
 | 
						|
    for (Header::ConstIterator i = header.begin();
 | 
						|
         i != header.end();
 | 
						|
         ++i)
 | 
						|
    {
 | 
						|
        if (strlen (i.name()) >= 32 || strlen (i.attribute().typeName()) >= 32)
 | 
						|
            return true;
 | 
						|
    }
 | 
						|
 | 
						|
    const ChannelList &channels = header.channels();
 | 
						|
 | 
						|
    for (ChannelList::ConstIterator i = channels.begin();
 | 
						|
         i != channels.end();
 | 
						|
         ++i)
 | 
						|
    {
 | 
						|
        if (strlen (i.name()) >= 32)
 | 
						|
            return true;
 | 
						|
    }
 | 
						|
 | 
						|
    return false;
 | 
						|
}
 | 
						|
 | 
						|
template <size_t N>
 | 
						|
void checkIsNullTerminated (const char (&str)[N], const char *what)
 | 
						|
{
 | 
						|
    for (int i = 0; i < N; ++i) {
 | 
						|
        if (str[i] == '\0')
 | 
						|
            return;
 | 
						|
    }
 | 
						|
    std::stringstream s;
 | 
						|
    s << "Invalid " << what << ": it is more than " << (N - 1)
 | 
						|
        << " characters long.";
 | 
						|
    throw Iex::InputExc(s);
 | 
						|
}
 | 
						|
 | 
						|
} // namespace
 | 
						|
 | 
						|
 | 
						|
Header::Header (int width,
 | 
						|
        int height,
 | 
						|
        float pixelAspectRatio,
 | 
						|
        const V2f &screenWindowCenter,
 | 
						|
        float screenWindowWidth,
 | 
						|
        LineOrder lineOrder,
 | 
						|
        Compression compression)
 | 
						|
:
 | 
						|
    _map()
 | 
						|
{
 | 
						|
    staticInitialize();
 | 
						|
 | 
						|
    Box2i displayWindow (V2i (0, 0), V2i (width - 1, height - 1));
 | 
						|
 | 
						|
    initialize (*this,
 | 
						|
        displayWindow,
 | 
						|
        displayWindow,
 | 
						|
        pixelAspectRatio,
 | 
						|
        screenWindowCenter,
 | 
						|
        screenWindowWidth,
 | 
						|
        lineOrder,
 | 
						|
        compression);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::Header (int width,
 | 
						|
        int height,
 | 
						|
        const Box2i &dataWindow,
 | 
						|
        float pixelAspectRatio,
 | 
						|
        const V2f &screenWindowCenter,
 | 
						|
        float screenWindowWidth,
 | 
						|
        LineOrder lineOrder,
 | 
						|
        Compression compression)
 | 
						|
:
 | 
						|
    _map()
 | 
						|
{
 | 
						|
    staticInitialize();
 | 
						|
 | 
						|
    Box2i displayWindow (V2i (0, 0), V2i (width - 1, height - 1));
 | 
						|
 | 
						|
    initialize (*this,
 | 
						|
        displayWindow,
 | 
						|
        dataWindow,
 | 
						|
        pixelAspectRatio,
 | 
						|
        screenWindowCenter,
 | 
						|
        screenWindowWidth,
 | 
						|
        lineOrder,
 | 
						|
        compression);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::Header (const Box2i &displayWindow,
 | 
						|
        const Box2i &dataWindow,
 | 
						|
        float pixelAspectRatio,
 | 
						|
        const V2f &screenWindowCenter,
 | 
						|
        float screenWindowWidth,
 | 
						|
        LineOrder lineOrder,
 | 
						|
        Compression compression)
 | 
						|
:
 | 
						|
    _map()
 | 
						|
{
 | 
						|
    staticInitialize();
 | 
						|
 | 
						|
    initialize (*this,
 | 
						|
        displayWindow,
 | 
						|
        dataWindow,
 | 
						|
        pixelAspectRatio,
 | 
						|
        screenWindowCenter,
 | 
						|
        screenWindowWidth,
 | 
						|
        lineOrder,
 | 
						|
        compression);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::Header (const Header &other): _map()
 | 
						|
{
 | 
						|
    for (AttributeMap::const_iterator i = other._map.begin();
 | 
						|
     i != other._map.end();
 | 
						|
     ++i)
 | 
						|
    {
 | 
						|
    insert (*i->first, *i->second);
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::~Header ()
 | 
						|
{
 | 
						|
    for (AttributeMap::iterator i = _map.begin();
 | 
						|
     i != _map.end();
 | 
						|
     ++i)
 | 
						|
    {
 | 
						|
     delete i->second;
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header &
 | 
						|
Header::operator = (const Header &other)
 | 
						|
{
 | 
						|
    if (this != &other)
 | 
						|
    {
 | 
						|
    for (AttributeMap::iterator i = _map.begin();
 | 
						|
         i != _map.end();
 | 
						|
         ++i)
 | 
						|
    {
 | 
						|
         delete i->second;
 | 
						|
    }
 | 
						|
 | 
						|
    _map.erase (_map.begin(), _map.end());
 | 
						|
 | 
						|
    for (AttributeMap::const_iterator i = other._map.begin();
 | 
						|
         i != other._map.end();
 | 
						|
         ++i)
 | 
						|
    {
 | 
						|
        insert (*i->first, *i->second);
 | 
						|
    }
 | 
						|
    }
 | 
						|
 | 
						|
    return *this;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
void
 | 
						|
Header::insert (const char name[], const Attribute &attribute)
 | 
						|
{
 | 
						|
    if (name[0] == 0)
 | 
						|
    THROW (Iex::ArgExc, "Image attribute name cannot be an empty string.");
 | 
						|
 | 
						|
    AttributeMap::iterator i = _map.find (name);
 | 
						|
 | 
						|
    if (i == _map.end())
 | 
						|
    {
 | 
						|
    Attribute *tmp = attribute.copy();
 | 
						|
 | 
						|
    try
 | 
						|
    {
 | 
						|
        _map[name] = tmp;
 | 
						|
    }
 | 
						|
    catch (...)
 | 
						|
    {
 | 
						|
        delete tmp;
 | 
						|
        throw;
 | 
						|
    }
 | 
						|
    }
 | 
						|
    else
 | 
						|
    {
 | 
						|
    if (strcmp (i->second->typeName(), attribute.typeName()))
 | 
						|
        THROW (Iex::TypeExc, "Cannot assign a value of "
 | 
						|
                 "type \"" << attribute.typeName() << "\" "
 | 
						|
                 "to image attribute \"" << name << "\" of "
 | 
						|
                 "type \"" << i->second->typeName() << "\".");
 | 
						|
 | 
						|
    Attribute *tmp = attribute.copy();
 | 
						|
    delete i->second;
 | 
						|
    i->second = tmp;
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
void
 | 
						|
Header::insert (const string &name, const Attribute &attribute)
 | 
						|
{
 | 
						|
    insert (name.c_str(), attribute);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Attribute &
 | 
						|
Header::operator [] (const char name[])
 | 
						|
{
 | 
						|
    AttributeMap::iterator i = _map.find (name);
 | 
						|
 | 
						|
    if (i == _map.end())
 | 
						|
    THROW (Iex::ArgExc, "Cannot find image attribute \"" << name << "\".");
 | 
						|
 | 
						|
    return *i->second;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const Attribute &
 | 
						|
Header::operator [] (const char name[]) const
 | 
						|
{
 | 
						|
    AttributeMap::const_iterator i = _map.find (name);
 | 
						|
 | 
						|
    if (i == _map.end())
 | 
						|
    THROW (Iex::ArgExc, "Cannot find image attribute \"" << name << "\".");
 | 
						|
 | 
						|
    return *i->second;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Attribute &
 | 
						|
Header::operator [] (const string &name)
 | 
						|
{
 | 
						|
    return this->operator[] (name.c_str());
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const Attribute &
 | 
						|
Header::operator [] (const string &name) const
 | 
						|
{
 | 
						|
    return this->operator[] (name.c_str());
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::Iterator
 | 
						|
Header::begin ()
 | 
						|
{
 | 
						|
    return _map.begin();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::ConstIterator
 | 
						|
Header::begin () const
 | 
						|
{
 | 
						|
    return _map.begin();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::Iterator
 | 
						|
Header::end ()
 | 
						|
{
 | 
						|
    return _map.end();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::ConstIterator
 | 
						|
Header::end () const
 | 
						|
{
 | 
						|
    return _map.end();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::Iterator
 | 
						|
Header::find (const char name[])
 | 
						|
{
 | 
						|
    return _map.find (name);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::ConstIterator
 | 
						|
Header::find (const char name[]) const
 | 
						|
{
 | 
						|
    return _map.find (name);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::Iterator
 | 
						|
Header::find (const string &name)
 | 
						|
{
 | 
						|
    return find (name.c_str());
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Header::ConstIterator
 | 
						|
Header::find (const string &name) const
 | 
						|
{
 | 
						|
    return find (name.c_str());
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Imath::Box2i &
 | 
						|
Header::displayWindow ()
 | 
						|
{
 | 
						|
    return static_cast <Box2iAttribute &>
 | 
						|
    ((*this)["displayWindow"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const Imath::Box2i &
 | 
						|
Header::displayWindow () const
 | 
						|
{
 | 
						|
    return static_cast <const Box2iAttribute &>
 | 
						|
    ((*this)["displayWindow"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Imath::Box2i &
 | 
						|
Header::dataWindow ()
 | 
						|
{
 | 
						|
    return static_cast <Box2iAttribute &>
 | 
						|
    ((*this)["dataWindow"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const Imath::Box2i &
 | 
						|
Header::dataWindow () const
 | 
						|
{
 | 
						|
    return static_cast <const Box2iAttribute &>
 | 
						|
    ((*this)["dataWindow"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
float &
 | 
						|
Header::pixelAspectRatio ()
 | 
						|
{
 | 
						|
    return static_cast <FloatAttribute &>
 | 
						|
    ((*this)["pixelAspectRatio"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const float &
 | 
						|
Header::pixelAspectRatio () const
 | 
						|
{
 | 
						|
    return static_cast <const FloatAttribute &>
 | 
						|
    ((*this)["pixelAspectRatio"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Imath::V2f &
 | 
						|
Header::screenWindowCenter ()
 | 
						|
{
 | 
						|
    return static_cast <V2fAttribute &>
 | 
						|
    ((*this)["screenWindowCenter"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const Imath::V2f &
 | 
						|
Header::screenWindowCenter () const
 | 
						|
{
 | 
						|
    return static_cast <const V2fAttribute &>
 | 
						|
    ((*this)["screenWindowCenter"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
float &
 | 
						|
Header::screenWindowWidth ()
 | 
						|
{
 | 
						|
    return static_cast <FloatAttribute &>
 | 
						|
    ((*this)["screenWindowWidth"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const float &
 | 
						|
Header::screenWindowWidth () const
 | 
						|
{
 | 
						|
    return static_cast <const FloatAttribute &>
 | 
						|
    ((*this)["screenWindowWidth"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
ChannelList &
 | 
						|
Header::channels ()
 | 
						|
{
 | 
						|
    return static_cast <ChannelListAttribute &>
 | 
						|
    ((*this)["channels"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const ChannelList &
 | 
						|
Header::channels () const
 | 
						|
{
 | 
						|
    return static_cast <const ChannelListAttribute &>
 | 
						|
    ((*this)["channels"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
LineOrder &
 | 
						|
Header::lineOrder ()
 | 
						|
{
 | 
						|
    return static_cast <LineOrderAttribute &>
 | 
						|
    ((*this)["lineOrder"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const LineOrder &
 | 
						|
Header::lineOrder () const
 | 
						|
{
 | 
						|
    return static_cast <const LineOrderAttribute &>
 | 
						|
    ((*this)["lineOrder"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Compression &
 | 
						|
Header::compression ()
 | 
						|
{
 | 
						|
    return static_cast <CompressionAttribute &>
 | 
						|
    ((*this)["compression"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const Compression &
 | 
						|
Header::compression () const
 | 
						|
{
 | 
						|
    return static_cast <const CompressionAttribute &>
 | 
						|
    ((*this)["compression"]).value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
void
 | 
						|
Header::setTileDescription(const TileDescription& td)
 | 
						|
{
 | 
						|
    insert ("tiles", TileDescriptionAttribute (td));
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
bool
 | 
						|
Header::hasTileDescription() const
 | 
						|
{
 | 
						|
    return findTypedAttribute <TileDescriptionAttribute> ("tiles") != 0;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
TileDescription &
 | 
						|
Header::tileDescription ()
 | 
						|
{
 | 
						|
    return typedAttribute <TileDescriptionAttribute> ("tiles").value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const TileDescription &
 | 
						|
Header::tileDescription () const
 | 
						|
{
 | 
						|
    return typedAttribute <TileDescriptionAttribute> ("tiles").value();
 | 
						|
}
 | 
						|
 | 
						|
void
 | 
						|
Header::setPreviewImage (const PreviewImage &pi)
 | 
						|
{
 | 
						|
    insert ("preview", PreviewImageAttribute (pi));
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
PreviewImage &
 | 
						|
Header::previewImage ()
 | 
						|
{
 | 
						|
    return typedAttribute <PreviewImageAttribute> ("preview").value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
const PreviewImage &
 | 
						|
Header::previewImage () const
 | 
						|
{
 | 
						|
    return typedAttribute <PreviewImageAttribute> ("preview").value();
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
bool
 | 
						|
Header::hasPreviewImage () const
 | 
						|
{
 | 
						|
    return findTypedAttribute <PreviewImageAttribute> ("preview") != 0;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
void
 | 
						|
Header::sanityCheck (bool isTiled) const
 | 
						|
{
 | 
						|
    //
 | 
						|
    // The display window and the data window must each
 | 
						|
    // contain at least one pixel.  In addition, the
 | 
						|
    // coordinates of the window corners must be small
 | 
						|
    // enough to keep expressions like max-min+1 or
 | 
						|
    // max+min from overflowing.
 | 
						|
    //
 | 
						|
 | 
						|
    const Box2i &displayWindow = this->displayWindow();
 | 
						|
 | 
						|
    if (displayWindow.min.x > displayWindow.max.x ||
 | 
						|
    displayWindow.min.y > displayWindow.max.y ||
 | 
						|
    displayWindow.min.x <= -(INT_MAX / 2) ||
 | 
						|
    displayWindow.min.y <= -(INT_MAX / 2) ||
 | 
						|
    displayWindow.max.x >=  (INT_MAX / 2) ||
 | 
						|
    displayWindow.max.y >=  (INT_MAX / 2))
 | 
						|
    {
 | 
						|
    throw Iex::ArgExc ("Invalid display window in image header.");
 | 
						|
    }
 | 
						|
 | 
						|
    const Box2i &dataWindow = this->dataWindow();
 | 
						|
 | 
						|
    if (dataWindow.min.x > dataWindow.max.x ||
 | 
						|
    dataWindow.min.y > dataWindow.max.y ||
 | 
						|
    dataWindow.min.x <= -(INT_MAX / 2) ||
 | 
						|
    dataWindow.min.y <= -(INT_MAX / 2) ||
 | 
						|
    dataWindow.max.x >=  (INT_MAX / 2) ||
 | 
						|
    dataWindow.max.y >=  (INT_MAX / 2))
 | 
						|
    {
 | 
						|
    throw Iex::ArgExc ("Invalid data window in image header.");
 | 
						|
    }
 | 
						|
 | 
						|
    if (maxImageWidth > 0 &&
 | 
						|
    maxImageWidth < dataWindow.max.x - dataWindow.min.x + 1)
 | 
						|
    {
 | 
						|
    THROW (Iex::ArgExc, "The width of the data window exceeds the "
 | 
						|
                "maximum width of " << maxImageWidth << "pixels.");
 | 
						|
    }
 | 
						|
 | 
						|
    if (maxImageHeight > 0 &&
 | 
						|
    maxImageHeight < dataWindow.max.y - dataWindow.min.y + 1)
 | 
						|
    {
 | 
						|
    THROW (Iex::ArgExc, "The width of the data window exceeds the "
 | 
						|
                "maximum width of " << maxImageHeight << "pixels.");
 | 
						|
    }
 | 
						|
 | 
						|
    //
 | 
						|
    // The pixel aspect ratio must be greater than 0.
 | 
						|
    // In applications, numbers like the the display or
 | 
						|
    // data window dimensions are likely to be multiplied
 | 
						|
    // or divided by the pixel aspect ratio; to avoid
 | 
						|
    // arithmetic exceptions, we limit the pixel aspect
 | 
						|
    // ratio to a range that is smaller than theoretically
 | 
						|
    // possible (real aspect ratios are likely to be close
 | 
						|
    // to 1.0 anyway).
 | 
						|
    //
 | 
						|
 | 
						|
    float pixelAspectRatio = this->pixelAspectRatio();
 | 
						|
 | 
						|
    const float MIN_PIXEL_ASPECT_RATIO = 1e-6f;
 | 
						|
    const float MAX_PIXEL_ASPECT_RATIO = 1e+6f;
 | 
						|
 | 
						|
    if (pixelAspectRatio < MIN_PIXEL_ASPECT_RATIO ||
 | 
						|
    pixelAspectRatio > MAX_PIXEL_ASPECT_RATIO)
 | 
						|
    {
 | 
						|
    throw Iex::ArgExc ("Invalid pixel aspect ratio in image header.");
 | 
						|
    }
 | 
						|
 | 
						|
    //
 | 
						|
    // The screen window width must not be less than 0.
 | 
						|
    // The size of the screen window can vary over a wide
 | 
						|
    // range (fish-eye lens to astronomical telescope),
 | 
						|
    // so we can't limit the screen window width to a
 | 
						|
    // small range.
 | 
						|
    //
 | 
						|
 | 
						|
    float screenWindowWidth = this->screenWindowWidth();
 | 
						|
 | 
						|
    if (screenWindowWidth < 0)
 | 
						|
    throw Iex::ArgExc ("Invalid screen window width in image header.");
 | 
						|
 | 
						|
    //
 | 
						|
    // If the file is tiled, verify that the tile description has resonable
 | 
						|
    // values and check to see if the lineOrder is one of the predefined 3.
 | 
						|
    // If the file is not tiled, then the lineOrder can only be INCREASING_Y
 | 
						|
    // or DECREASING_Y.
 | 
						|
    //
 | 
						|
 | 
						|
    LineOrder lineOrder = this->lineOrder();
 | 
						|
 | 
						|
    if (isTiled)
 | 
						|
    {
 | 
						|
    if (!hasTileDescription())
 | 
						|
    {
 | 
						|
        throw Iex::ArgExc ("Tiled image has no tile "
 | 
						|
                   "description attribute.");
 | 
						|
    }
 | 
						|
 | 
						|
    const TileDescription &tileDesc = tileDescription();
 | 
						|
 | 
						|
    if (tileDesc.xSize <= 0 || tileDesc.ySize <= 0)
 | 
						|
        throw Iex::ArgExc ("Invalid tile size in image header.");
 | 
						|
 | 
						|
    if (maxTileWidth > 0 &&
 | 
						|
        maxTileWidth < tileDesc.xSize)
 | 
						|
    {
 | 
						|
        THROW (Iex::ArgExc, "The width of the tiles exceeds the maximum "
 | 
						|
                "width of " << maxTileWidth << "pixels.");
 | 
						|
    }
 | 
						|
 | 
						|
    if (maxTileHeight > 0 &&
 | 
						|
        maxTileHeight < tileDesc.ySize)
 | 
						|
    {
 | 
						|
        THROW (Iex::ArgExc, "The width of the tiles exceeds the maximum "
 | 
						|
                "width of " << maxTileHeight << "pixels.");
 | 
						|
    }
 | 
						|
 | 
						|
    if (tileDesc.mode != ONE_LEVEL &&
 | 
						|
        tileDesc.mode != MIPMAP_LEVELS &&
 | 
						|
        tileDesc.mode != RIPMAP_LEVELS)
 | 
						|
        throw Iex::ArgExc ("Invalid level mode in image header.");
 | 
						|
 | 
						|
    if (tileDesc.roundingMode != ROUND_UP &&
 | 
						|
        tileDesc.roundingMode != ROUND_DOWN)
 | 
						|
        throw Iex::ArgExc ("Invalid level rounding mode in image header.");
 | 
						|
 | 
						|
    if (lineOrder != INCREASING_Y &&
 | 
						|
        lineOrder != DECREASING_Y &&
 | 
						|
        lineOrder != RANDOM_Y)
 | 
						|
        throw Iex::ArgExc ("Invalid line order in image header.");
 | 
						|
    }
 | 
						|
    else
 | 
						|
    {
 | 
						|
    if (lineOrder != INCREASING_Y &&
 | 
						|
        lineOrder != DECREASING_Y)
 | 
						|
        throw Iex::ArgExc ("Invalid line order in image header.");
 | 
						|
    }
 | 
						|
 | 
						|
    //
 | 
						|
    // The compression method must be one of the predefined values.
 | 
						|
    //
 | 
						|
 | 
						|
    if (!isValidCompression (this->compression()))
 | 
						|
    throw Iex::ArgExc ("Unknown compression type in image header.");
 | 
						|
 | 
						|
    //
 | 
						|
    // Check the channel list:
 | 
						|
    //
 | 
						|
    // If the file is tiled then for each channel, the type must be one of the
 | 
						|
    // predefined values, and the x and y sampling must both be 1.
 | 
						|
    //
 | 
						|
    // If the file is not tiled then for each channel, the type must be one
 | 
						|
    // of the predefined values, the x and y coordinates of the data window's
 | 
						|
    // upper left corner must be divisible by the x and y subsampling factors,
 | 
						|
    // and the width and height of the data window must be divisible by the
 | 
						|
    // x and y subsampling factors.
 | 
						|
    //
 | 
						|
 | 
						|
    const ChannelList &channels = this->channels();
 | 
						|
 | 
						|
    if (isTiled)
 | 
						|
    {
 | 
						|
    for (ChannelList::ConstIterator i = channels.begin();
 | 
						|
         i != channels.end();
 | 
						|
         ++i)
 | 
						|
    {
 | 
						|
        if (i.channel().type != UINT &&
 | 
						|
        i.channel().type != HALF &&
 | 
						|
        i.channel().type != FLOAT)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "Pixel type of \"" << i.name() << "\" "
 | 
						|
                        "image channel is invalid.");
 | 
						|
        }
 | 
						|
 | 
						|
        if (i.channel().xSampling != 1)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "The x subsampling factor for the "
 | 
						|
                    "\"" << i.name() << "\" channel "
 | 
						|
                    "is not 1.");
 | 
						|
        }
 | 
						|
 | 
						|
        if (i.channel().ySampling != 1)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "The y subsampling factor for the "
 | 
						|
                    "\"" << i.name() << "\" channel "
 | 
						|
                    "is not 1.");
 | 
						|
        }
 | 
						|
    }
 | 
						|
    }
 | 
						|
    else
 | 
						|
    {
 | 
						|
    for (ChannelList::ConstIterator i = channels.begin();
 | 
						|
         i != channels.end();
 | 
						|
         ++i)
 | 
						|
    {
 | 
						|
        if (i.channel().type != UINT &&
 | 
						|
        i.channel().type != HALF &&
 | 
						|
        i.channel().type != FLOAT)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "Pixel type of \"" << i.name() << "\" "
 | 
						|
                        "image channel is invalid.");
 | 
						|
        }
 | 
						|
 | 
						|
        if (i.channel().xSampling < 1)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "The x subsampling factor for the "
 | 
						|
                    "\"" << i.name() << "\" channel "
 | 
						|
                    "is invalid.");
 | 
						|
        }
 | 
						|
 | 
						|
        if (i.channel().ySampling < 1)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "The y subsampling factor for the "
 | 
						|
                    "\"" << i.name() << "\" channel "
 | 
						|
                    "is invalid.");
 | 
						|
        }
 | 
						|
 | 
						|
        if (dataWindow.min.x % i.channel().xSampling)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "The minimum x coordinate of the "
 | 
						|
                    "image's data window is not a multiple "
 | 
						|
                    "of the x subsampling factor of "
 | 
						|
                    "the \"" << i.name() << "\" channel.");
 | 
						|
        }
 | 
						|
 | 
						|
        if (dataWindow.min.y % i.channel().ySampling)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "The minimum y coordinate of the "
 | 
						|
                    "image's data window is not a multiple "
 | 
						|
                    "of the y subsampling factor of "
 | 
						|
                    "the \"" << i.name() << "\" channel.");
 | 
						|
        }
 | 
						|
 | 
						|
        if ((dataWindow.max.x - dataWindow.min.x + 1) %
 | 
						|
            i.channel().xSampling)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "Number of pixels per row in the "
 | 
						|
                    "image's data window is not a multiple "
 | 
						|
                    "of the x subsampling factor of "
 | 
						|
                    "the \"" << i.name() << "\" channel.");
 | 
						|
        }
 | 
						|
 | 
						|
        if ((dataWindow.max.y - dataWindow.min.y + 1) %
 | 
						|
            i.channel().ySampling)
 | 
						|
        {
 | 
						|
        THROW (Iex::ArgExc, "Number of pixels per column in the "
 | 
						|
                    "image's data window is not a multiple "
 | 
						|
                    "of the y subsampling factor of "
 | 
						|
                    "the \"" << i.name() << "\" channel.");
 | 
						|
        }
 | 
						|
    }
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
void
 | 
						|
Header::setMaxImageSize (int maxWidth, int maxHeight)
 | 
						|
{
 | 
						|
    maxImageWidth = maxWidth;
 | 
						|
    maxImageHeight = maxHeight;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
void
 | 
						|
Header::setMaxTileSize (int maxWidth, int maxHeight)
 | 
						|
{
 | 
						|
    maxTileWidth = maxWidth;
 | 
						|
    maxTileHeight = maxHeight;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
Int64
 | 
						|
Header::writeTo (OStream &os, bool isTiled) const
 | 
						|
{
 | 
						|
    //
 | 
						|
    // Write a "magic number" to identify the file as an image file.
 | 
						|
    // Write the current file format version number.
 | 
						|
    //
 | 
						|
 | 
						|
    Xdr::write <StreamIO> (os, MAGIC);
 | 
						|
 | 
						|
    int version = EXR_VERSION;
 | 
						|
 | 
						|
    if (isTiled)
 | 
						|
        version |= TILED_FLAG;
 | 
						|
 | 
						|
    if (usesLongNames (*this))
 | 
						|
        version |= LONG_NAMES_FLAG;
 | 
						|
 | 
						|
    Xdr::write <StreamIO> (os, version);
 | 
						|
 | 
						|
    //
 | 
						|
    // Write all attributes.  If we have a preview image attribute,
 | 
						|
    // keep track of its position in the file.
 | 
						|
    //
 | 
						|
 | 
						|
    Int64 previewPosition = 0;
 | 
						|
 | 
						|
    const Attribute *preview =
 | 
						|
        findTypedAttribute <PreviewImageAttribute> ("preview");
 | 
						|
 | 
						|
    for (ConstIterator i = begin(); i != end(); ++i)
 | 
						|
    {
 | 
						|
    //
 | 
						|
    // Write the attribute's name and type.
 | 
						|
    //
 | 
						|
 | 
						|
    Xdr::write <StreamIO> (os, i.name());
 | 
						|
    Xdr::write <StreamIO> (os, i.attribute().typeName());
 | 
						|
 | 
						|
    //
 | 
						|
    // Write the size of the attribute value,
 | 
						|
    // and the value itself.
 | 
						|
    //
 | 
						|
 | 
						|
    StdOSStream oss;
 | 
						|
    i.attribute().writeValueTo (oss, version);
 | 
						|
 | 
						|
    std::string s = oss.str();
 | 
						|
    Xdr::write <StreamIO> (os, (int) s.length());
 | 
						|
 | 
						|
    if (&i.attribute() == preview)
 | 
						|
        previewPosition = os.tellp();
 | 
						|
 | 
						|
    os.write (s.data(), s.length());
 | 
						|
    }
 | 
						|
 | 
						|
    //
 | 
						|
    // Write zero-length attribute name to mark the end of the header.
 | 
						|
    //
 | 
						|
 | 
						|
    Xdr::write <StreamIO> (os, "");
 | 
						|
 | 
						|
    return previewPosition;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
void
 | 
						|
Header::readFrom (IStream &is, int &version)
 | 
						|
{
 | 
						|
    //
 | 
						|
    // Read the magic number and the file format version number.
 | 
						|
    // Then check if we can read the rest of this file.
 | 
						|
    //
 | 
						|
 | 
						|
    int magic;
 | 
						|
 | 
						|
    Xdr::read <StreamIO> (is, magic);
 | 
						|
    Xdr::read <StreamIO> (is, version);
 | 
						|
 | 
						|
    if (magic != MAGIC)
 | 
						|
    {
 | 
						|
    throw Iex::InputExc ("File is not an image file.");
 | 
						|
    }
 | 
						|
 | 
						|
    if (getVersion (version) != EXR_VERSION)
 | 
						|
    {
 | 
						|
    THROW (Iex::InputExc, "Cannot read "
 | 
						|
                  "version " << getVersion (version) << " "
 | 
						|
                  "image files.  Current file format version "
 | 
						|
                  "is " << EXR_VERSION << ".");
 | 
						|
    }
 | 
						|
 | 
						|
    if (!supportsFlags (getFlags (version)))
 | 
						|
    {
 | 
						|
    THROW (Iex::InputExc, "The file format version number's flag field "
 | 
						|
                  "contains unrecognized flags.");
 | 
						|
    }
 | 
						|
 | 
						|
    //
 | 
						|
    // Read all attributes.
 | 
						|
    //
 | 
						|
 | 
						|
    while (true)
 | 
						|
    {
 | 
						|
    //
 | 
						|
    // Read the name of the attribute.
 | 
						|
    // A zero-length attribute name indicates the end of the header.
 | 
						|
    //
 | 
						|
 | 
						|
    char name[Name::SIZE];
 | 
						|
    Xdr::read <StreamIO> (is, Name::MAX_LENGTH, name);
 | 
						|
 | 
						|
    if (name[0] == 0)
 | 
						|
        break;
 | 
						|
 | 
						|
    checkIsNullTerminated (name, "attribute name");
 | 
						|
 | 
						|
    //
 | 
						|
    // Read the attribute type and the size of the attribute value.
 | 
						|
    //
 | 
						|
 | 
						|
    char typeName[Name::SIZE];
 | 
						|
    int size;
 | 
						|
 | 
						|
    Xdr::read <StreamIO> (is, Name::MAX_LENGTH, typeName);
 | 
						|
    checkIsNullTerminated (typeName, "attribute type name");
 | 
						|
    Xdr::read <StreamIO> (is, size);
 | 
						|
 | 
						|
    AttributeMap::iterator i = _map.find (name);
 | 
						|
 | 
						|
    if (i != _map.end())
 | 
						|
    {
 | 
						|
        //
 | 
						|
        // The attribute already exists (for example,
 | 
						|
        // because it is a predefined attribute).
 | 
						|
        // Read the attribute's new value from the file.
 | 
						|
        //
 | 
						|
 | 
						|
        if (strncmp (i->second->typeName(), typeName, sizeof (typeName)))
 | 
						|
        THROW (Iex::InputExc, "Unexpected type for image attribute "
 | 
						|
                      "\"" << name << "\".");
 | 
						|
 | 
						|
        i->second->readValueFrom (is, size, version);
 | 
						|
    }
 | 
						|
    else
 | 
						|
    {
 | 
						|
        //
 | 
						|
        // The new attribute does not exist yet.
 | 
						|
        // If the attribute type is of a known type,
 | 
						|
        // read the attribute value.  If the attribute
 | 
						|
        // is of an unknown type, read its value and
 | 
						|
        // store it as an OpaqueAttribute.
 | 
						|
        //
 | 
						|
 | 
						|
        Attribute *attr;
 | 
						|
 | 
						|
        if (Attribute::knownType (typeName))
 | 
						|
        attr = Attribute::newAttribute (typeName);
 | 
						|
        else
 | 
						|
        attr = new OpaqueAttribute (typeName);
 | 
						|
 | 
						|
        try
 | 
						|
        {
 | 
						|
        attr->readValueFrom (is, size, version);
 | 
						|
        _map[name] = attr;
 | 
						|
        }
 | 
						|
        catch (...)
 | 
						|
        {
 | 
						|
        delete attr;
 | 
						|
        throw;
 | 
						|
        }
 | 
						|
    }
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
void
 | 
						|
staticInitialize ()
 | 
						|
{
 | 
						|
    static Mutex criticalSection;
 | 
						|
    Lock lock (criticalSection);
 | 
						|
 | 
						|
    static bool initialized = false;
 | 
						|
 | 
						|
    if (!initialized)
 | 
						|
    {
 | 
						|
    //
 | 
						|
    // One-time initialization -- register
 | 
						|
    // some predefined attribute types.
 | 
						|
    //
 | 
						|
 | 
						|
    Box2fAttribute::registerAttributeType();
 | 
						|
    Box2iAttribute::registerAttributeType();
 | 
						|
    ChannelListAttribute::registerAttributeType();
 | 
						|
    CompressionAttribute::registerAttributeType();
 | 
						|
    ChromaticitiesAttribute::registerAttributeType();
 | 
						|
    DoubleAttribute::registerAttributeType();
 | 
						|
    EnvmapAttribute::registerAttributeType();
 | 
						|
    FloatAttribute::registerAttributeType();
 | 
						|
    IntAttribute::registerAttributeType();
 | 
						|
    KeyCodeAttribute::registerAttributeType();
 | 
						|
    LineOrderAttribute::registerAttributeType();
 | 
						|
    M33dAttribute::registerAttributeType();
 | 
						|
    M33fAttribute::registerAttributeType();
 | 
						|
    M44dAttribute::registerAttributeType();
 | 
						|
    M44fAttribute::registerAttributeType();
 | 
						|
    PreviewImageAttribute::registerAttributeType();
 | 
						|
    RationalAttribute::registerAttributeType();
 | 
						|
    StringAttribute::registerAttributeType();
 | 
						|
        StringVectorAttribute::registerAttributeType();
 | 
						|
    TileDescriptionAttribute::registerAttributeType();
 | 
						|
    TimeCodeAttribute::registerAttributeType();
 | 
						|
    V2dAttribute::registerAttributeType();
 | 
						|
    V2fAttribute::registerAttributeType();
 | 
						|
    V2iAttribute::registerAttributeType();
 | 
						|
    V3dAttribute::registerAttributeType();
 | 
						|
    V3fAttribute::registerAttributeType();
 | 
						|
    V3iAttribute::registerAttributeType();
 | 
						|
 | 
						|
    initialized = true;
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
} // namespace Imf
 |