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author | Eugene Sandulenko | 2011-01-23 17:14:43 +0000 |
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committer | Eugene Sandulenko | 2011-01-23 17:14:43 +0000 |
commit | 806ccf5d25ebe337103942cdb6b5cf8800de115a (patch) | |
tree | ead210f06163f97521b2ae26b06b450be8bf10a3 /graphics/video/codecs/msrle.cpp | |
parent | 36ed9be335217ef6fcf8e07b257fb6a1ee1ed8f2 (diff) | |
download | scummvm-rg350-806ccf5d25ebe337103942cdb6b5cf8800de115a.tar.gz scummvm-rg350-806ccf5d25ebe337103942cdb6b5cf8800de115a.tar.bz2 scummvm-rg350-806ccf5d25ebe337103942cdb6b5cf8800de115a.zip |
GRAPHICS: Move graphics/video/ to video/. Step 1/2
svn-id: r55473
Diffstat (limited to 'graphics/video/codecs/msrle.cpp')
-rw-r--r-- | graphics/video/codecs/msrle.cpp | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/graphics/video/codecs/msrle.cpp b/graphics/video/codecs/msrle.cpp deleted file mode 100644 index a3929fc1fd..0000000000 --- a/graphics/video/codecs/msrle.cpp +++ /dev/null @@ -1,134 +0,0 @@ -/* 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 2 - * 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, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * $URL$ - * $Id$ - * - */ - -// Based off ffmpeg's msrledec.c - -#include "graphics/video/codecs/msrle.h" -#include "common/stream.h" - -namespace Graphics { - -MSRLEDecoder::MSRLEDecoder(uint16 width, uint16 height, byte bitsPerPixel) { - _surface = new Graphics::Surface(); - _surface->create(width, height, 1); - _bitsPerPixel = bitsPerPixel; -} - -MSRLEDecoder::~MSRLEDecoder() { - _surface->free(); - delete _surface; -} - -const Surface *MSRLEDecoder::decodeImage(Common::SeekableReadStream *stream) { - if (_bitsPerPixel == 8) { - decode8(stream); - } else - error("Unhandled %d bit Microsoft RLE encoding", _bitsPerPixel); - - return _surface; -} - -void MSRLEDecoder::decode8(Common::SeekableReadStream *stream) { - - int x = 0; - int y = _surface->h - 1; - - byte *data = (byte *) _surface->pixels; - uint16 width = _surface->w; - uint16 height = _surface->h; - - byte *output = data + ((height - 1) * width); - byte *output_end = data + ((height) * width); - - while (!stream->eos()) { - byte count = stream->readByte(); - byte value = stream->readByte(); - - if (count == 0) { - if (value == 0) { - // End of line - - x = 0; - y--; - output = data + (y * width); - - if (y < 0) { - warning("Next line is beyond picture bounds"); - return; - } - - } else if (value == 1) { - // End of image - - return; - } else if (value == 2) { - // Skip - - count = stream->readByte(); - value = stream->readByte(); - - y -= value; - x += count; - - if (y < 0) { - warning("Skip beyond picture bounds"); - return; - } - - output = data + ((y * width) + x); - - } else { - // Copy data - - if (output + value > output_end) { - stream->skip(value); - continue; - } - - for (int i = 0; i < value; i++) - *output++ = stream->readByte(); - - if (value & 1) - stream->skip(1); - - x += value; - } - - } else { - // Run data - - if (output + count > output_end) - continue; - - for (int i = 0; i < count; i++, x++) - *output++ = value; - } - - } - - warning("No end-of-picture code"); -} - -} // End of namespace Graphics |