VGearsPaletteFileSerializer.h

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/*
 * Copyright (C) 2022 The V-Gears Team
 *
 * This file is part of V-Gears
 *
 * V-Gears is free software: you can redistribute it and/or modify it under
 * terms of the GNU General Public License as published by the Free Software
 * Foundation, version 3.0 (GPLv3) of the License.
 *
 * V-Gears is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 */
 
#pragma once
 
#include <OgrePixelFormat.h>
#include "common/TypeDefine.h"
#include "VGearsPaletteFile.h"
#include "VGearsSerializer.h"
 
namespace VGears{
 
    class PaletteFileSerializer : public Serializer{
 
        public:
 
            PaletteFileSerializer();
 
            virtual ~PaletteFileSerializer();
 
            virtual void ImportPaletteFile(Ogre::DataStreamPtr &stream, PaletteFile* dest);
 
            enum {
 
                BIT_MASK_RED = 0x001F,
 
                BIT_MASK_GREEN = 0x03E0,
 
                BIT_MASK_BLUE = 0x7C00,
 
                BIT_SIZE = 0x001F,
 
                BIT_MASK_RGB = BIT_MASK_BLUE | BIT_MASK_GREEN | BIT_MASK_RED,
 
                BIT_MASK_ALPHA  = 0x8000
            };
 
            struct Header{
 
                uint32 file_size;
 
                uint16 pal_x;
 
                uint16 pal_y;
 
                uint16 colors_per_page;
 
                uint16 page_count;
            };
 
            typedef PaletteFile::Color Color;
 
            typedef PaletteFile::Page Page;
 
        protected:
 
            virtual void ReadFileHeader(Ogre::DataStreamPtr &stream);
 
            virtual void readObject(Ogre::DataStreamPtr &stream, Color &dest);
 
            virtual void readObject(Ogre::DataStreamPtr &stream, Page &dest);
 
            using Serializer::readObject;
 
            virtual void ConvertColour(uint16 &colour) const;
 
            static const Ogre::PixelFormat PIXEL_FORMAT;
 
            template<typename ValueType> void ReadVector(
              Ogre::DataStreamPtr &stream, std::vector<ValueType> &dest, size_t count
            ){
                dest.clear();
                dest.reserve(count);
                for (size_t i(count); i --;){
                    ValueType in_tmp;
                    readObject(stream, in_tmp);
                    dest.push_back(in_tmp);
                }
            }
 
        private:
 
            Header header_;
    };
}