Image.h

/* 
 *  Copyright 2011 Matthias Fuchs
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

#ifndef STROMX_RUNTIME_IMAGE_H
#define STROMX_RUNTIME_IMAGE_H

#include <stdint.h>
#include "stromx/runtime/Matrix.h"

namespace stromx
{
    namespace runtime
    {
        class STROMX_RUNTIME_API Image : public Matrix
        {
        public:
            enum PixelType
            {
                NONE,
                MONO_8,
                MONO_16,
                RGB_24,
                RGB_48,
                BGR_24,
                BGR_48,
                BAYERBG_8,
                BAYERBG_16,
                BAYERGB_8,
                BAYERGB_16
            };
            
            virtual ~Image() {}
            
            virtual unsigned int width() const = 0;
            
            virtual unsigned int height() const = 0;
            
            virtual unsigned int stride() const = 0;
            
            virtual PixelType pixelType() const = 0;
            
            virtual unsigned int pixelSize() const;
            
            virtual unsigned int numChannels() const;
            
            virtual unsigned int depth() const;
            
            virtual void initializeImage(const unsigned int width, 
                                         const unsigned int height, 
                                         const unsigned int stride, 
                                         uint8_t* data, 
                                         const PixelType pixelType) = 0;
            
            static unsigned int pixelSize(const PixelType pixelType);
                      
            static unsigned int numChannels(const PixelType pixelType);
            
            static unsigned depth(const PixelType pixelType);
            
        protected:
            static const runtime::VariantHandle dataVariantFromPixelType(const PixelType pixelType);
            
            static Matrix::ValueType valueTypeFromPixelType(const PixelType pixelType);
        };
        
        template <>
        class STROMX_RUNTIME_API data_traits<Image>
        {
        public:
            static const VariantHandle & variant();
        };
    }
}

#endif // STROMX_RUNTIME_IMAGE_H