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
}
SurfaceImage::SurfaceImage( ImageSourceRef imageSource )
: SurfaceBase( imageSource->getWidth(), imageSource->getWidth() )
{
mCairoSurface = cairo_image_surface_create( imageSource->hasAlpha() ? CAIRO_FORMAT_RGB24 : CAIRO_FORMAT_ARGB32, imageSource->getWidth(), imageSource->getHeight() );
initCinderSurface( imageSource->hasAlpha(), cairo_image_surface_get_data( mCairoSurface ), cairo_image_surface_get_stride( mCairoSurface ) );
writeImage( (ImageTargetRef)mCinderSurface, imageSource );
}
ChannelT<T>::ChannelT( const ImageSourceRef &imageSource )
{
mWidth = imageSource->getWidth();
mHeight = imageSource->getHeight();
mRowBytes = mWidth * sizeof(T);
mIncrement = 1;
mDataStore = shared_ptr<T>( new T[mHeight * (mRowBytes/sizeof(T))], std::default_delete<T[]>() );
mData = mDataStore.get();
shared_ptr<ImageTargetChannel<T>> target = ImageTargetChannel<T>::createRef( this );
imageSource->load( target );
}
ChannelT<T>::ChannelT( ImageSourceRef imageSource )
{
int32_t width = imageSource->getWidth();
int32_t height = imageSource->getHeight();
int32_t rowBytes = width * sizeof(T);
T *data = new T[height * (rowBytes/sizeof(T))];
mObj = shared_ptr<Obj>( new Obj( width, height, rowBytes, 1, true, data ) );
mObj->mOwnsData = true;
shared_ptr<ImageTargetChannel<T> > target = ImageTargetChannel<T>::createRef( this );
imageSource->load( target );
}
GWorldPtr createGWorld( ImageSourceRef imageSource )
{
ImageTargetGWorldRef target = ImageTargetGWorld::createRef( imageSource );
imageSource->load( target );
target->finalize();
return target->getGWorld();
}
CVPixelBufferRef createCvPixelBuffer( ImageSourceRef imageSource, bool convertToYpCbCr )
{
ImageTargetCvPixelBufferRef target = ImageTargetCvPixelBuffer::createRef( imageSource, convertToYpCbCr );
imageSource->load( target );
target->finalize();
::CVPixelBufferRef result( target->getCvPixelBuffer() );
::CVPixelBufferRetain( result );
return result;
}
void SurfaceT<T>::init( ImageSourceRef imageSource, const SurfaceConstraints &constraints, boost::tribool alpha )
{
int32_t width = imageSource->getWidth();
int32_t height = imageSource->getHeight();
bool hasAlpha;
if( alpha )
hasAlpha = true;
else if( ! alpha )
hasAlpha = false;
else
hasAlpha = imageSource->hasAlpha();
SurfaceChannelOrder channelOrder = constraints.getChannelOrder( hasAlpha );
int32_t rowBytes = constraints.getRowBytes( width, channelOrder, sizeof(T) );
T *data = new T[height * rowBytes];
mObj = std::shared_ptr<Obj>( new Obj( width, height, channelOrder, data, true, rowBytes ) );
mObj->mIsPremultiplied = imageSource->isPremultiplied();
std::shared_ptr<ImageTargetSurface<T> > target = ImageTargetSurface<T>::createRef( this );
imageSource->load( target );
// if the image doesn't have alpha but we do, set ourselves to be full alpha
if( hasAlpha && ( ! imageSource->hasAlpha() ) ) {
ip::fill( &getChannelAlpha(), CHANTRAIT<T>::max() );
}
}
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 );
}
ImageTargetFileStbImage::ImageTargetFileStbImage( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const std::string &extensionData )
{
if( ! dataTarget->providesFilePath() ) {
throw ImageIoExceptionFailedWrite( "ImageTargetFileStbImage only supports writing to files." );
}
mFilePath = dataTarget->getFilePath();
setSize( imageSource->getWidth(), imageSource->getHeight() );
ImageIo::ColorModel cm = options.isColorModelDefault() ? imageSource->getColorModel() : options.getColorModel();
switch( cm ) {
case ImageIo::ColorModel::CM_RGB:
mNumComponents = ( imageSource->hasAlpha() ) ? 4 : 3;
setColorModel( ImageIo::ColorModel::CM_RGB );
setChannelOrder( ( mNumComponents == 4 ) ? ImageIo::ChannelOrder::RGBA : ImageIo::ChannelOrder::RGB );
break;
case ImageIo::ColorModel::CM_GRAY:
mNumComponents = ( imageSource->hasAlpha() ) ? 2 : 1;
setColorModel( ImageIo::ColorModel::CM_GRAY );
setChannelOrder( ( mNumComponents == 2 ) ? ImageIo::ChannelOrder::YA : ImageIo::ChannelOrder::Y );
break;
default:
throw ImageIoExceptionIllegalColorModel();
}
mExtension = extensionData;
if( mExtension == "hdr" ) { // Radiance files are always float*
setDataType( ImageIo::DataType::FLOAT32 );
mRowBytes = mNumComponents * imageSource->getWidth() * sizeof(float);
}
else {
setDataType( ImageIo::DataType::UINT8 );
mRowBytes = mNumComponents * imageSource->getWidth() * sizeof(float);
}
mData = std::unique_ptr<uint8_t[]>( new uint8_t[mWidth * mRowBytes] );
}
ImageTargetFileTinyExr::ImageTargetFileTinyExr( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const std::string & /*extensionData*/ )
{
if( ! dataTarget->providesFilePath() ) {
throw ImageIoExceptionFailedWrite( "ImageTargetFileTinyExr only supports writing to files." );
}
mFilePath = dataTarget->getFilePath();
setSize( imageSource->getWidth(), imageSource->getHeight() );
ImageIo::ColorModel cm = options.isColorModelDefault() ? imageSource->getColorModel() : options.getColorModel();
switch( cm ) {
case ImageIo::ColorModel::CM_RGB:
mNumComponents = ( imageSource->hasAlpha() ) ? 4 : 3;
setColorModel( ImageIo::ColorModel::CM_RGB );
setChannelOrder( ( mNumComponents == 3 ) ? ImageIo::ChannelOrder::BGR : ImageIo::ChannelOrder::ABGR );
if( mNumComponents == 3 )
mChannelNames = { "G", "B", "R" };
else
mChannelNames = { "A", "G", "B", "R" };
break;
case ImageIo::ColorModel::CM_GRAY:
mNumComponents = ( imageSource->hasAlpha() ) ? 2 : 1;
setColorModel( ImageIo::ColorModel::CM_GRAY );
setChannelOrder( ( mNumComponents == 2 ) ? ImageIo::ChannelOrder::YA : ImageIo::ChannelOrder::Y );
if( mNumComponents == 2 )
mChannelNames = { "Y", "A" };
else
mChannelNames = { "Y" };
break;
default:
throw ImageIoExceptionIllegalColorModel();
}
// TODO: consider supporting half float and uint types as well
setDataType( ImageIo::DataType::FLOAT32 );
mData.resize( mHeight * imageSource->getWidth() * mNumComponents );
}
void writeImage( ImageTargetRef imageTarget, const ImageSourceRef &imageSource )
{
imageSource->load( imageTarget );
imageTarget->finalize();
}
void Texture::init( ImageSourceRef imageSource, const Format &format )
{
mObj->mDoNotDispose = false;
mObj->mTarget = format.mTarget;
mObj->mWidth = mObj->mCleanWidth = imageSource->getWidth();
mObj->mHeight = mObj->mCleanHeight = imageSource->getHeight();
#if defined( CINDER_MAC )
bool supportsTextureFloat = gl::isExtensionAvailable( "GL_ARB_texture_float" );
#elif defined( CINDER_MSW )
bool supportsTextureFloat = GLEE_ARB_texture_float != 0;
#endif
// Set the internal format based on the image's color space
if( format.isAutoInternalFormat() ) {
switch( imageSource->getColorModel() ) {
#if ! defined( CINDER_GLES )
case ImageIo::CM_RGB:
if( imageSource->getDataType() == ImageIo::UINT8 )
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_RGBA8 : GL_RGB8;
else if( imageSource->getDataType() == ImageIo::UINT16 )
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_RGBA16 : GL_RGB16;
else if( imageSource->getDataType() == ImageIo::FLOAT32 && supportsTextureFloat )
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_RGBA32F_ARB : GL_RGB32F_ARB;
else
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_RGBA : GL_RGB;
break;
case ImageIo::CM_GRAY:
if( imageSource->getDataType() == ImageIo::UINT8 )
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_LUMINANCE8_ALPHA8 : GL_LUMINANCE8;
else if( imageSource->getDataType() == ImageIo::UINT16 )
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_LUMINANCE16_ALPHA16 : GL_LUMINANCE16;
else if( imageSource->getDataType() == ImageIo::FLOAT32 && supportsTextureFloat )
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_LUMINANCE_ALPHA32F_ARB : GL_LUMINANCE32F_ARB;
else
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_LUMINANCE_ALPHA : GL_LUMINANCE;
break;
#else
case ImageIo::CM_RGB:
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_RGBA : GL_RGB;
break;
case ImageIo::CM_GRAY:
mObj->mInternalFormat = ( imageSource->hasAlpha() ) ? GL_LUMINANCE_ALPHA : GL_LUMINANCE;
break;
#endif
default:
throw ImageIoExceptionIllegalColorModel();
break;
}
}
else {
mObj->mInternalFormat = format.mInternalFormat;
}
// setup an appropriate dataFormat/ImageTargetTexture based on the image's color space
GLint dataFormat;
ImageIo::ChannelOrder channelOrder;
bool isGray = false;
switch( imageSource->getColorModel() ) {
case ImageSource::CM_RGB:
dataFormat = ( imageSource->hasAlpha() ) ? GL_RGBA : GL_RGB;
channelOrder = ( imageSource->hasAlpha() ) ? ImageIo::RGBA : ImageIo::RGB;
break;
case ImageSource::CM_GRAY:
dataFormat = ( imageSource->hasAlpha() ) ? GL_LUMINANCE_ALPHA : GL_LUMINANCE;
channelOrder = ( imageSource->hasAlpha() ) ? ImageIo::YA : ImageIo::Y;
isGray = true;
break;
default: // if this is some other color space, we'll have to punt and go w/ RGB
dataFormat = ( imageSource->hasAlpha() ) ? GL_RGBA : GL_RGB;
channelOrder = ( imageSource->hasAlpha() ) ? ImageIo::RGBA : ImageIo::RGB;
break;
}
glGenTextures( 1, &mObj->mTextureID );
glBindTexture( mObj->mTarget, mObj->mTextureID );
glTexParameteri( mObj->mTarget, GL_TEXTURE_WRAP_S, format.mWrapS );
glTexParameteri( mObj->mTarget, GL_TEXTURE_WRAP_T, format.mWrapT );
glTexParameteri( mObj->mTarget, GL_TEXTURE_MIN_FILTER, format.mMinFilter );
glTexParameteri( mObj->mTarget, GL_TEXTURE_MAG_FILTER, format.mMagFilter );
if( format.mMipmapping )
glTexParameteri( mObj->mTarget, GL_GENERATE_MIPMAP, GL_TRUE );
if( mObj->mTarget == GL_TEXTURE_2D ) {
mObj->mMaxU = mObj->mMaxV = 1.0f;
}
else {
mObj->mMaxU = (float)mObj->mWidth;
mObj->mMaxV = (float)mObj->mHeight;
}
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
if( imageSource->getDataType() == ImageIo::UINT8 ) {
shared_ptr<ImageTargetGLTexture<uint8_t> > target = ImageTargetGLTexture<uint8_t>::createRef( this, channelOrder, isGray, imageSource->hasAlpha() );
imageSource->load( target );
glTexImage2D( mObj->mTarget, 0, mObj->mInternalFormat, mObj->mWidth, mObj->mHeight, 0, dataFormat, GL_UNSIGNED_BYTE, target->getData() );
}
else if( imageSource->getDataType() == ImageIo::UINT16 ) {
shared_ptr<ImageTargetGLTexture<uint16_t> > target = ImageTargetGLTexture<uint16_t>::createRef( this, channelOrder, isGray, imageSource->hasAlpha() );
imageSource->load( target );
glTexImage2D( mObj->mTarget, 0, mObj->mInternalFormat, mObj->mWidth, mObj->mHeight, 0, dataFormat, GL_UNSIGNED_SHORT, target->getData() );
}
else {
shared_ptr<ImageTargetGLTexture<float> > target = ImageTargetGLTexture<float>::createRef( this, channelOrder, isGray, imageSource->hasAlpha() );
imageSource->load( target );
glTexImage2D( mObj->mTarget, 0, mObj->mInternalFormat, mObj->mWidth, mObj->mHeight, 0, dataFormat, GL_FLOAT, target->getData() );
}
}
ImageTargetFileWic::ImageTargetFileWic( DataTargetRef dataTarget, ImageSourceRef imageSource, const string &extensionData )
: ImageTarget(), mDataTarget( dataTarget )
{
mCodecGUID = getExtensionMap()[extensionData];
setSize( imageSource->getWidth(), imageSource->getHeight() );
// determine the pixel format we'll request
WICPixelFormatGUID formatGUID;
if( imageSource->hasAlpha() ) {
bool premultAlpha = imageSource->isPremultiplied();
// WIC doesn't support gray+alpha, so we need to do RGBA regardless
if( imageSource->getDataType() == ImageIo::UINT8 )
formatGUID = premultAlpha ? GUID_WICPixelFormat32bppPBGRA : GUID_WICPixelFormat32bppBGRA;
else if( imageSource->getDataType() == ImageIo::UINT16 )
formatGUID = premultAlpha ? GUID_WICPixelFormat64bppPRGBA : GUID_WICPixelFormat64bppRGBA;
else
formatGUID = premultAlpha ? GUID_WICPixelFormat128bppPRGBAFloat : GUID_WICPixelFormat128bppRGBAFloat;
}
else {
if( imageSource->getColorModel() == ImageIo::CM_GRAY ) {
if( imageSource->getDataType() == ImageIo::UINT8 )
formatGUID = GUID_WICPixelFormat8bppGray;
else if( imageSource->getDataType() == ImageIo::UINT16 )
formatGUID = GUID_WICPixelFormat16bppGray;
else
formatGUID = GUID_WICPixelFormat32bppGrayFloat;
}
else {
if( imageSource->getDataType() == ImageIo::UINT8 )
formatGUID = GUID_WICPixelFormat24bppBGR;
else if( imageSource->getDataType() == ImageIo::UINT16 )
formatGUID = GUID_WICPixelFormat48bppRGB;
else
formatGUID = GUID_WICPixelFormat128bppRGBFloat;
}
}
::HRESULT hr = S_OK;
msw::initializeCom();
// Create WIC factory
IWICImagingFactory *IWICFactoryP = NULL;
hr = ::CoCreateInstance( CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&IWICFactoryP) );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedLoad();
shared_ptr<IWICImagingFactory> IWICFactory = msw::makeComShared( IWICFactoryP );
IWICBitmapEncoder *encoderP = NULL;
hr = IWICFactory->CreateEncoder( *mCodecGUID, 0, &encoderP );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedLoad();
mEncoder = msw::makeComShared( encoderP );
// create the stream
IWICStream *pIWICStream = NULL;
hr = IWICFactory->CreateStream( &pIWICStream );
if( ! SUCCEEDED(hr) )
throw ImageIoExceptionFailedLoad();
shared_ptr<IWICStream> stream = msw::makeComShared( pIWICStream );
// initialize the stream based on properties of the cinder::DataSouce
if( mDataTarget->providesFilePath() ) {
hr = stream->InitializeFromFilename( toUtf16( mDataTarget->getFilePath() ).c_str(), GENERIC_WRITE );
if( ! SUCCEEDED(hr) )
throw ImageIoExceptionFailedLoad();
}
else {
shared_ptr<msw::ComOStream> comOStream = msw::makeComShared( new msw::ComOStream( mDataTarget->getStream() ) );
hr = stream->InitializeFromIStream( comOStream.get() );
if( ! SUCCEEDED(hr) )
throw ImageIoExceptionFailedLoad();
}
hr = mEncoder->Initialize( stream.get(), WICBitmapEncoderNoCache );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedLoad();
// create the frame encoder
IPropertyBag2 *pPropertybag = NULL;
IWICBitmapFrameEncode *pBitmapFrame = NULL;
hr = mEncoder->CreateNewFrame( &pBitmapFrame, &pPropertybag );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedLoad();
mBitmapFrame = msw::makeComShared( pBitmapFrame );
hr = mBitmapFrame->Initialize( 0 );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedLoad();
hr = mBitmapFrame->SetSize( mWidth, mHeight );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedLoad();
// ask for our ideal pixel format and then process the one we actually get
hr = mBitmapFrame->SetPixelFormat( &formatGUID );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedLoad();
setupPixelFormat( formatGUID );
mData = shared_ptr<uint8_t>( new uint8_t[mHeight * mRowBytes], boost::checked_array_delete<uint8_t> );
}
ImageTargetFileWic::ImageTargetFileWic( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const string &extensionData )
: ImageTarget(), mDataTarget( dataTarget )
{
mCodecGUID = getExtensionMap()[extensionData];
setSize( imageSource->getWidth(), imageSource->getHeight() );
// determine the pixel format we'll request
WICPixelFormatGUID formatGUID;
if( imageSource->hasAlpha() ) {
bool premultAlpha = imageSource->isPremultiplied();
// WIC doesn't support gray+alpha, so we need to do RGBA regardless
if( imageSource->getDataType() == ImageIo::UINT8 )
formatGUID = premultAlpha ? GUID_WICPixelFormat32bppPBGRA : GUID_WICPixelFormat32bppBGRA;
else if( imageSource->getDataType() == ImageIo::UINT16 )
formatGUID = premultAlpha ? GUID_WICPixelFormat64bppPRGBA : GUID_WICPixelFormat64bppRGBA;
else
formatGUID = premultAlpha ? GUID_WICPixelFormat128bppPRGBAFloat : GUID_WICPixelFormat128bppRGBAFloat;
}
else {
ImageIo::ColorModel cm = options.isColorModelDefault() ? imageSource->getColorModel() : options.getColorModel();
if( cm == ImageIo::CM_GRAY ) {
if( imageSource->getDataType() == ImageIo::UINT8 )
formatGUID = GUID_WICPixelFormat8bppGray;
else if( imageSource->getDataType() == ImageIo::UINT16 )
formatGUID = GUID_WICPixelFormat16bppGray;
else
formatGUID = GUID_WICPixelFormat32bppGrayFloat;
}
else { // RGB
if( imageSource->getDataType() == ImageIo::UINT8 )
formatGUID = GUID_WICPixelFormat24bppBGR;
else if( imageSource->getDataType() == ImageIo::UINT16 )
formatGUID = GUID_WICPixelFormat48bppRGB;
else
formatGUID = GUID_WICPixelFormat128bppRGBFloat;
}
}
::HRESULT hr = S_OK;
msw::initializeCom();
// Create WIC factory
IWICImagingFactory *IWICFactoryP = NULL;
hr = ::CoCreateInstance( CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&IWICFactoryP) );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not create WIC Factory." );
shared_ptr<IWICImagingFactory> IWICFactory = msw::makeComShared( IWICFactoryP );
IWICBitmapEncoder *encoderP = NULL;
hr = IWICFactory->CreateEncoder( *mCodecGUID, 0, &encoderP );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not create WIC Encoder." );
mEncoder = msw::makeComShared( encoderP );
// create the stream
IWICStream *pIWICStream = NULL;
hr = IWICFactory->CreateStream( &pIWICStream );
if( ! SUCCEEDED(hr) )
throw ImageIoExceptionFailedWrite( "Could not create WIC stream." );
shared_ptr<IWICStream> stream = msw::makeComShared( pIWICStream );
// initialize the stream based on properties of the cinder::DataSouce
if( mDataTarget->providesFilePath() ) {
#if defined( CINDER_WINRT)
std::string s = mDataTarget->getFilePath().string();
std::wstring filePath = std::wstring(s.begin(), s.end());
#else
std::wstring filePath = mDataTarget->getFilePath().wstring().c_str();
#endif
hr = stream->InitializeFromFilename( filePath.c_str(), GENERIC_WRITE );
if( ! SUCCEEDED(hr) )
throw ImageIoExceptionFailedWrite( "Could not initialize WIC Stream from filename." );
}
else {
shared_ptr<msw::ComOStream> comOStream = msw::makeComShared( new msw::ComOStream( mDataTarget->getStream() ) );
hr = stream->InitializeFromIStream( comOStream.get() );
if( ! SUCCEEDED(hr) )
throw ImageIoExceptionFailedWrite( "Could not initialize WIC Stream from IStream." );
}
hr = mEncoder->Initialize( stream.get(), WICBitmapEncoderNoCache );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not initialize WIC Encoder." );
// create the frame encoder
IPropertyBag2 *pPropertybag = NULL;
IWICBitmapFrameEncode *pBitmapFrame = NULL;
hr = mEncoder->CreateNewFrame( &pBitmapFrame, &pPropertybag );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not ceate WIC Frame." );
mBitmapFrame = msw::makeComShared( pBitmapFrame );
// setup the propertyBag to express quality
PROPBAG2 option = { 0 };
option.pstrName = L"ImageQuality";
VARIANT varValue;
VariantInit(&varValue);
varValue.vt = VT_R4;
varValue.fltVal = options.getQuality();
hr = pPropertybag->Write( 1, &option, &varValue );
hr = mBitmapFrame->Initialize( pPropertybag );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not initialize WIC PROPBAG2." );
hr = mBitmapFrame->SetSize( mWidth, mHeight );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not set WIC Frame size." );
// ask for our ideal pixel format and then process the one we actually get
hr = mBitmapFrame->SetPixelFormat( &formatGUID );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not set WIC Frame pixel format." );
setupPixelFormat( formatGUID );
mData = shared_ptr<uint8_t>( new uint8_t[mHeight * mRowBytes], std::default_delete<uint8_t[]>() );
}