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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef AGS_SHARED_UTIL_COMPRESS_H
#define AGS_SHARED_UTIL_COMPRESS_H
#include "ags/shared/core/types.h"
#include "ags/shared/util/wgt2_allg.h"
namespace AGS3 {
namespace AGS {
namespace Shared {
class Stream;
class Bitmap;
} // namespace Shared
} // namespace AGS
using namespace AGS; // FIXME later
bool rle_compress(const uint8_t *data, size_t data_sz, int image_bpp, Shared::Stream *out);
bool rle_decompress(uint8_t *data, size_t data_sz, int image_bpp, Shared::Stream *in);
// Packs a 8-bit bitmap using RLE compression, and writes into stream along with the palette
void save_rle_bitmap8(Shared::Stream *out, const Shared::Bitmap *bmp, const RGB(*pal)[256] = nullptr);
// Reads a 8-bit bitmap with palette from the stream and unpacks from RLE
Shared::Bitmap *load_rle_bitmap8(Shared::Stream *in, RGB(*pal)[256] = nullptr);
// Skips the 8-bit RLE bitmap
void skip_rle_bitmap8(Shared::Stream *in);
// LZW compression
bool lzw_compress(const uint8_t *data, size_t data_sz, int image_bpp, Shared::Stream *out);
bool lzw_decompress(uint8_t *data, size_t data_sz, int image_bpp, Shared::Stream *in, size_t in_sz);
// Saves bitmap with an optional palette compressed by LZW
void save_lzw(Shared::Stream *out, const Shared::Bitmap *bmpp, const RGB(*pal)[256] = nullptr);
// Loads bitmap decompressing
Shared::Bitmap *load_lzw(Shared::Stream *in, int dst_bpp, RGB (*pal)[256] = nullptr);
// Deflate compression
bool deflate_compress(const uint8_t *data, size_t data_sz, int image_bpp, Shared::Stream *out);
bool inflate_decompress(uint8_t *data, size_t data_sz, int image_bpp, Shared::Stream *in, size_t in_sz);
} // namespace AGS3
#endif
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