bool GLTextureRectangle::set( Array2DReadView< uint8x2 > srcData,
GLImageFormat srcFormat,
const Vector2i& dstOffset )
{
if( srcFormat != GLImageFormat::RG )
{
return false;
}
if( !srcData.packed() )
{
return false;
}
const GLPixelType srcType = GLPixelType::UNSIGNED_BYTE;
return set2D( srcData.pointer(), srcData.size(), srcFormat, srcType,
dstOffset );
}
bool GLTextureRectangle::set( Array2DReadView< Vector4f > srcData,
GLImageFormat srcFormat,
const Vector2i& dstOffset )
{
if( srcFormat != GLImageFormat::RGBA && srcFormat != GLImageFormat::BGRA )
{
return false;
}
if( !srcData.packed() )
{
return false;
}
const GLPixelType srcType = GLPixelType::FLOAT;
return set2D( srcData.pointer(), srcData.size(), srcFormat, srcType,
dstOffset );
}
// static
bool PNGIO::write( const std::string& filename,
Array2DReadView< uint16_t > image )
{
// TODO: use BitPacking::byteSwap16 on the buffer once it supports a
// destination.
Array2D< uint16_t > tmpImage( image.size() );
libcgt::core::arrayutils::map( image, tmpImage.writeView(),
[&] ( uint16_t z )
{
return byteSwap16( z );
}
);
const uint8_t* srcPointer = reinterpret_cast< const uint8_t* >(
tmpImage.pointer() );
unsigned int errVal = lodepng::encode(
filename, srcPointer, image.width(), image.height(), LCT_GREY, 16U );
bool succeeded = ( errVal == 0 );
return succeeded;
}
// static
bool PNGIO::write( const std::string& filename,
Array2DReadView< uint8x4 > image )
{
Array2D< uint8x4 > tmpImage;
const uint8_t* srcPointer;
if( !image.packed() )
{
tmpImage.resize( image.size() );
copy< uint8x4 >( image, tmpImage );
srcPointer = reinterpret_cast< const uint8_t* >( tmpImage.pointer() );
}
else
{
srcPointer = reinterpret_cast< const uint8_t* >( image.pointer() );
}
unsigned int errVal = lodepng::encode(
filename, srcPointer, image.width(), image.height(), LCT_RGBA );
bool succeeded = ( errVal == 0 );
return succeeded;
}