/*
 * Copyright 2010-2017, Haiku. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Philippe Houdoin
 */
#ifndef WEBP_TRANSLATOR_H
#define WEBP_TRANSLATOR_H


#include <ByteOrder.h>
#include <DataIO.h>
#include <File.h>
#include <fs_attr.h>
#include <GraphicsDefs.h>
#include <InterfaceDefs.h>
#include <TranslationDefs.h>
#include <Translator.h>
#include <TranslatorFormats.h>

#include "BaseTranslator.h"

#define WEBP_TRANSLATOR_VERSION B_TRANSLATION_MAKE_VERSION(0,6,0)
#define WEBP_IMAGE_FORMAT       'WebP'

#define WEBP_SETTING_QUALITY            "quality"
#define WEBP_SETTING_PRESET                     "preset"
#define WEBP_SETTING_SHARPNESS          "sharpness"
#define WEBP_SETTING_METHOD                     "method"
#define WEBP_SETTING_PREPROCESSING      "preprocessing"


#define WEBP_IN_QUALITY 0.90
#define WEBP_IN_CAPABILITY 0.90

#define WEBP_OUT_QUALITY 0.90
#define WEBP_OUT_CAPABILITY 0.5

#define BITS_IN_QUALITY 0.8
#define BITS_IN_CAPABILITY 0.6

#define BITS_OUT_QUALITY 0.5
#define BITS_OUT_CAPABILITY 0.4


struct WebPPicture;


class WebPTranslator : public BaseTranslator {
public:
                                                        WebPTranslator();

        virtual status_t                DerivedIdentify(BPositionIO* stream,
                                                                const translation_format* format,
                                                                BMessage* settings, translator_info* info,
                                                                uint32 outType);

        virtual status_t                DerivedTranslate(BPositionIO* stream,
                                                                const translator_info* info,
                                                                BMessage* settings, uint32 outType,
                                                                BPositionIO* target, int32 baseType);

        virtual BView*                  NewConfigView(TranslatorSettings* settings);

protected:
        virtual                                 ~WebPTranslator();
                // this is protected because the object is deleted by the
                // Release() function instead of being deleted directly by
                // the user

private:
                        status_t                _TranslateFromBits(BPositionIO* stream,
                                                                BMessage* settings, uint32 outType,
                                                                BPositionIO* target);

                        status_t                _TranslateFromWebP(BPositionIO* stream,
                                                                BMessage* settings, uint32 outType,
                                                                BPositionIO* target);

        static  int                     _EncodedWriter(const uint8_t* data,
                                                                size_t dataSize,
                                                                const WebPPicture* const picture);
};


#endif // #ifndef WEBP_TRANSLATOR_H