iOSPNGDecoder.h

#pragma once

#include "IPNGDecoder.h"
#include "Graphics.h"
#include <CoreGraphics/CoreGraphics.h>


namespace Eegeo
{
    namespace iOS
    {
        class iOSPNGDecoder : public Helpers::PNG::IPNGDecoder
        {
        public:
            
            Helpers::PNG::DecodedPNG* DecodePNGFromBuffer(const void* encodedBytes, size_t encodedByteCount, bool invertVertically) const override;
            
            Helpers::PNG::DecodedPNG* DecodePNGFromStream(std::istream& stream, bool invertVertically) const override;
            
            Helpers::PNG::DecodedPNG* DecodePNGFromDataProvider(CGDataProviderRef dataProvider, bool invertVertically) const;
            
        private:
            
            static size_t GetBytes(void *info, void* buffer, size_t count);
            static off_t SkipBytes(void *info, off_t count);
            static void Rewind(void *info);
        };
    }
}