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/*
* _ _ _ _ _____
* __ ____| |_ __ _ __ | |_ _ __ _(_)_ __ __| |_ ___ _|___ /
* \ \ / / _` | '__|____| '_ \| | | | |/ _` | | '_ \ _____ / _` \ \/ / '__||_ \
* \ V / (_| | | |_____| |_) | | |_| | (_| | | | | |_____| (_| |> <| | ___) |
* \_/ \__,_|_| | .__/|_|\__,_|\__, |_|_| |_| \__,_/_/\_\_| |____/
* |_| |___/
*
* Copyright (C) 2009 Christian Gmeiner
*
* This file is part of vdr-plugin-dxr3.
*
* vdr-plugin-dxr3 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2.
*
* vdr-plugin-dxr3 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.
*
* You should have received a copy of the GNU General Public License
* along with dxr3-plugin. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef SPUENCODER_H
#define SPUENCODER_H
#include <stdint.h>
#include <vdr/osd.h>
#include <queue>
#include "dxr3singleton.h"
#include "spuregion.h"
static const int MAX_SPU_DATA = 65220; // TODO validate this value
struct sRle {
uint8_t top[MAX_SPU_DATA];
uint8_t bottom[MAX_SPU_DATA];
uint16_t topLen;
uint16_t bottomLen;
};
class cSpuEncoder : public Singleton<cSpuEncoder> {
public:
void clearOsd();
void encode(cBitmap *bmap, int top, int left);
private:
cBitmap *bitmap;
int top, left; // start points of bitmap
uint8_t spu[MAX_SPU_DATA];
uint8_t *p; // pointer to current spu data
uint8_t nholder; // nibble holder
uint32_t ncnt; // nibble count
int32_t written; // how much data are written
sRle rleData; // storage for encoded data
std::queue<cSpuRegion *> regions;
int numColors; // len of tColor array of current bitmap
const tColor* colors; // pointer to tColor array from current bitmap
tColor opacity[16];
tColor palcolors[16];
void writeNibble(uint8_t val);
void writeColorAndAlpha(sSection &sec, bool withCMD);
void generateColorPalette();
void generateSpuData(bool topAndBottom) throw (char const* );
void clearRegions();
void rle4colors();
};
#endif // SPUENCODER_H
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