ImageTargetGWorld::ImageTargetGWorld( ImageSourceRef imageSource )
: ImageTarget(), mGWorld( 0 ), mPixMap( 0 )
{
setSize( (size_t)imageSource->getWidth(), (size_t)imageSource->getHeight() );
OSType formatType;
// for now all we support is 8 bit RGBA
setDataType( ImageIo::UINT8 );
formatType = k32ARGBPixelFormat;
setChannelOrder( ImageIo::ARGB );
setColorModel( ImageIo::CM_RGB );
::Rect boundsRect;
boundsRect.left = boundsRect.top = 0;
boundsRect.right = (short)imageSource->getWidth();
boundsRect.bottom = (short)imageSource->getHeight();
if( ::QTNewGWorld( &mGWorld, formatType, &boundsRect, NULL, NULL, 0 ) != noErr )
throw ImageIoException();
mPixMap = ::GetGWorldPixMap( mGWorld );
if( ! ::LockPixels( mPixMap ) ) {
::DisposeGWorld( mGWorld );
throw ImageIoException();
}
#if defined( CINDER_MSW )
mData = reinterpret_cast<uint8_t*>( (**mPixMap).baseAddr );
mRowBytes = ( (**mPixMap).rowBytes ) & 0x3FFF;
#else
mData = reinterpret_cast<uint8_t*>( ::GetPixBaseAddr( mPixMap ) );
mRowBytes = ::GetPixRowBytes( mPixMap );
#endif
}
ImageTargetCvPixelBuffer::ImageTargetCvPixelBuffer( ImageSourceRef imageSource, bool convertToYpCbCr )
: ImageTarget(), mPixelBufferRef( 0 ), mConvertToYpCbCr( convertToYpCbCr )
{
setSize( (size_t)imageSource->getWidth(), (size_t)imageSource->getHeight() );
//http://developer.apple.com/mac/library/qa/qa2006/qa1501.html
// if we're converting to YCbCr, we'll load all of the data as RGB in terms of ci::ImageIo
// but we run color space conversion over it later in the finalize method
OSType formatType;
if( ! mConvertToYpCbCr ) {
switch( imageSource->getDataType() ) {
// for now all we support is 8 bit RGB(A)
case ImageIo::UINT16:
case ImageIo::FLOAT32:
case ImageIo::UINT8:
setDataType( ImageIo::UINT8 );
if( imageSource->hasAlpha () ) {
formatType = k32ARGBPixelFormat;
setChannelOrder( ImageIo::ARGB );
}
else {
formatType = k24RGBPixelFormat;
setChannelOrder( ImageIo::RGB );
}
setColorModel( ImageIo::CM_RGB );
break;
default:
throw ImageIoException();
}
}
else {
formatType = 'v408';/*k4444YpCbCrA8PixelFormat;*/
setDataType( ImageIo::UINT8 );
setChannelOrder( ImageIo::RGBA );
setColorModel( ImageIo::CM_RGB );
}
if( ::CVPixelBufferCreate( kCFAllocatorDefault, imageSource->getWidth(), imageSource->getHeight(),
formatType, NULL, &mPixelBufferRef ) != kCVReturnSuccess )
throw ImageIoException();
if( ::CVPixelBufferLockBaseAddress( mPixelBufferRef, 0 ) != kCVReturnSuccess )
throw ImageIoException();
mData = reinterpret_cast<uint8_t*>( ::CVPixelBufferGetBaseAddress( mPixelBufferRef ) );
mRowBytes = ::CVPixelBufferGetBytesPerRow( mPixelBufferRef );
}
///////////////////////////////////////////////////////////////////////////////
// ImageSourceFileQuartz
ImageSourceFileQuartzRef ImageSourceFileQuartz::createFileQuartzRef( DataSourceRef dataSourceRef, ImageSource::Options options )
{
std::shared_ptr<CGImageSource> sourceRef;
std::shared_ptr<CGImage> imageRef;
::CFStringRef keys[1] = { kCGImageSourceShouldAllowFloat };
::CFBooleanRef values[1] = { kCFBooleanTrue };
const std::shared_ptr<__CFDictionary> optionsDict( (__CFDictionary*)CFDictionaryCreate( kCFAllocatorDefault, (const void **)&keys, (const void **)&values, 1, NULL, NULL ), cocoa::safeCfRelease );
if( dataSourceRef->isFilePath() ) {
::CFStringRef pathString = cocoa::createCfString( dataSourceRef->getFilePath().string() );
::CFURLRef urlRef = ::CFURLCreateWithFileSystemPath( kCFAllocatorDefault, pathString, kCFURLPOSIXPathStyle, false );
sourceRef = std::shared_ptr<CGImageSource>( ::CGImageSourceCreateWithURL( urlRef, optionsDict.get() ), cocoa::safeCfRelease );
::CFRelease( pathString );
::CFRelease( urlRef );
}
else if( dataSourceRef->isUrl() ) {
::CFURLRef urlRef = cocoa::createCfUrl( dataSourceRef->getUrl() );
if( ! urlRef )
throw ImageIoException( "Could not create CFURLRef from data source." );
sourceRef = std::shared_ptr<CGImageSource>( ::CGImageSourceCreateWithURL( urlRef, optionsDict.get() ), cocoa::safeCfRelease );
::CFRelease( urlRef );
}
else { // last ditch, we'll use a dataref from the buffer
::CFDataRef dataRef = cocoa::createCfDataRef( dataSourceRef->getBuffer() );
if( ! dataRef )
throw ImageIoExceptionFailedLoad( "Could not create CFDataRef from data source." );
sourceRef = std::shared_ptr<CGImageSource>( ::CGImageSourceCreateWithData( dataRef, optionsDict.get() ), cocoa::safeCfRelease );
::CFRelease( dataRef );
}
if( sourceRef ) {
imageRef = std::shared_ptr<CGImage>( ::CGImageSourceCreateImageAtIndex( sourceRef.get(), options.getIndex(), optionsDict.get() ), CGImageRelease );
if( ! imageRef )
throw ImageIoExceptionFailedLoad( "Core Graphics coult not create image data." );
}
else
throw ImageIoExceptionFailedLoad( "Failed to load CGImageSource." );
const std::shared_ptr<__CFDictionary> imageProperties( (__CFDictionary*)::CGImageSourceCopyProperties( sourceRef.get(), NULL ), ::CFRelease );
const std::shared_ptr<__CFDictionary> imageIndexProperties( (__CFDictionary*)::CGImageSourceCopyPropertiesAtIndex( sourceRef.get(), options.getIndex(), NULL ), ::CFRelease );
return ImageSourceFileQuartzRef( new ImageSourceFileQuartz( imageRef.get(), options, imageProperties, imageIndexProperties ) );
}
void ImageTargetFileWic::setupPixelFormat( const GUID &guid )
{
if( guid == GUID_WICPixelFormat24bppBGR ) {
setChannelOrder( ImageIo::BGR ); setColorModel( ImageIo::CM_RGB ); setDataType( ImageIo::UINT8 );
}
else if( guid == GUID_WICPixelFormat24bppRGB ) {
setChannelOrder( ImageIo::RGB ); setColorModel( ImageIo::CM_RGB ); setDataType( ImageIo::UINT8 );
}
else if( guid == GUID_WICPixelFormat32bppBGR ) {
setChannelOrder( ImageIo::BGRX ); setColorModel( ImageIo::CM_RGB ); setDataType( ImageIo::UINT8 );
}
else if( guid == GUID_WICPixelFormat32bppBGRA ) {
setChannelOrder( ImageIo::BGRA ); setColorModel( ImageIo::CM_RGB ); setDataType( ImageIo::UINT8 );
}
else if( guid == GUID_WICPixelFormat32bppPBGRA ) {
setChannelOrder( ImageIo::BGRA ); setColorModel( ImageIo::CM_RGB ); setDataType( ImageIo::UINT8 );// mIsPremultipliedAlpha = true;
}
else if( guid == GUID_WICPixelFormat48bppRGB ) {
setChannelOrder( ImageIo::RGB ); setColorModel( ImageIo::CM_RGB ); setDataType( ImageIo::UINT16 );
}
else if( guid == GUID_WICPixelFormat64bppRGBA ) {
setChannelOrder( ImageIo::RGBA ); setColorModel( ImageIo::CM_RGB ); setDataType( ImageIo::UINT16 );
}
else if( guid == GUID_WICPixelFormat64bppPRGBA ) {
setChannelOrder( ImageIo::RGBA ); setColorModel( ImageIo::CM_RGB ); setDataType( ImageIo::UINT16 ); // mIsPremultipliedAlpha = true;
}
else if( guid == GUID_WICPixelFormat128bppRGBFloat ) {
setChannelOrder( ImageIo::RGB ); setColorModel( ImageIo::CM_RGB ); setDataType( ImageIo::FLOAT32 );
}
else if( guid == GUID_WICPixelFormat8bppGray ) {
setChannelOrder( ImageIo::Y ); setColorModel( ImageIo::CM_GRAY ); setDataType( ImageIo::UINT8 );
}
else if( guid == GUID_WICPixelFormat16bppGray ) {
setChannelOrder( ImageIo::Y ); setColorModel( ImageIo::CM_GRAY ); setDataType( ImageIo::UINT16 );
}
else if( guid == GUID_WICPixelFormat32bppGrayFloat ) {
setChannelOrder( ImageIo::Y ); setColorModel( ImageIo::CM_GRAY ); setDataType( ImageIo::FLOAT32 );
}
else
throw ImageIoException( "Unsupported format." );
int32_t bitsPerComponent;
bool writingAlpha = hasAlpha();
bool isFloat = true;
switch( getDataType() ) {
case ImageIo::UINT8: bitsPerComponent = 8; isFloat = false; break;
case ImageIo::UINT16: bitsPerComponent = 16; isFloat = false; break;
default: bitsPerComponent = 32; isFloat = true;
}
uint8_t numChannels;
switch( getColorModel() ) {
case ImageIo::CM_GRAY:
numChannels = ( writingAlpha ) ? 2 : 1; break;
default:
numChannels = ( writingAlpha ) ? 4 : 3;
}
int32_t bitsPerPixel = numChannels * bitsPerComponent;
mRowBytes = ( mWidth * ( bitsPerPixel / 8 ) + 3 ) & ~3;
return;
}
