mirror of
https://github.com/libretro/scummvm.git
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441 lines
12 KiB
C++
441 lines
12 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2004-2005 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#include "stdafx.h"
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#include "wsamovie.h"
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#include "codecs.h"
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#include "common/stream.h"
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#ifdef DUMP_FILES
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#include <stdio.h>
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#endif
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namespace Kyra {
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WSAMovieV1::WSAMovieV1(uint8* data, uint32 size, uint8 gameid) {
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if (!data) {
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error("resource created without data");
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}
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_background = 0;
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_currentFrame = 0;
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_ownPalette = 0;
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_offsetTable = 0;
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_prefetchedFrame = 0xFFFE;
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_buffer = data;
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// I like these Streams .... =)
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Common::MemoryReadStream datastream(data, size);
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_wsaHeader._numFrames = datastream.readUint16LE();
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_wsaHeader._width = datastream.readUint16LE();
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_wsaHeader._height = datastream.readUint16LE();
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_wsaHeader._xPos = datastream.readByte();
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_wsaHeader._yPos = datastream.readByte();
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_wsaHeader._delta = datastream.readUint16LE();
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_wsaHeader._type = datastream.readUint16LE();
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#ifdef DUMP_FILES
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// TODO: make Linux/BSD conform
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FILE* wsaheader = fopen("dumps/wsaheader.txt", "w+");
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if (wsaheader) {
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for (uint32 pos = 0; pos < sizeof(_wsaHeader); ++pos)
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fprintf(wsaheader, "%d pos. byte: %d\n", pos + 1, ((uint8*)&_wsaHeader)[pos]);
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fprintf(wsaheader, "\n");
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for (uint32 pos = 0; pos < sizeof(_wsaHeader) / 2; ++pos)
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fprintf(wsaheader, "%d pos. word: %d\n", pos + 1, ((uint16*)&_wsaHeader)[pos]);
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fprintf(wsaheader, "\n");
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for (uint32 pos = 0; pos < sizeof(_wsaHeader) / 4; ++pos)
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fprintf(wsaheader, "%d pos. dword: %d\n", pos + 1, ((uint32*)&_wsaHeader)[pos]);
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}
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fclose(wsaheader);
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#endif
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if (gameid == KYRA1CD) {
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uint16 tmp = _wsaHeader._delta;
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_wsaHeader._delta = _wsaHeader._type;
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_wsaHeader._type = tmp;
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// skip 2 bytes
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datastream.readUint16LE();
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}
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debug("_wsaHeader._numFrames = %d", _wsaHeader._numFrames);
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debug("_wsaHeader._width = %d", _wsaHeader._width);
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debug("_wsaHeader._height = %d", _wsaHeader._height);
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debug("_wsaHeader._xPos = %d", _wsaHeader._xPos);
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debug("_wsaHeader._yPos = %d", _wsaHeader._yPos);
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debug("_wsaHeader._delta = %d", _wsaHeader._delta);
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debug("_wsaHeader._type = %d", _wsaHeader._type);
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// check for version
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if (_wsaHeader._type) {
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error("loading a WSA version 2 with the WSA version 1 loader");
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}
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uint16 offsetAdd = 0;
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// checks now for own palette
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if (_wsaHeader._type % 2) {
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// don't now if this will work right, because a few lines before we use
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// _wsaHeader._type for detect the version of the WSA movie,
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// but this code was from FreeKyra Tools so I think it will work
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// if this is a packed palette we have a problem :)
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offsetAdd = 768 /* 0x300 */;
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}
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// last frame seems every time to be a empty one
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_frameCount = _wsaHeader._numFrames - 1;
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_offsetTable = new uint32[_wsaHeader._numFrames + 2];
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assert(_offsetTable);
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// loads the offset table
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for (uint32 tmp = 0; tmp < (uint32)_wsaHeader._numFrames + 2; ++tmp) {
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_offsetTable[tmp] = datastream.readUint32LE() + offsetAdd;
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}
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if (offsetAdd) {
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uint8* palbuffer = new uint8[offsetAdd];
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assert(palbuffer);
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datastream.read(palbuffer, offsetAdd);
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_ownPalette = new Palette(palbuffer, offsetAdd);
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assert(_ownPalette);
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}
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// FIXME: Confirm the default value here?
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// LordHoto: What is the 'default' value? 0?
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_transparency = -1;
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}
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WSAMovieV1::~WSAMovieV1() {
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delete [] _buffer;
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delete [] _offsetTable;
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delete [] _currentFrame;
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delete _ownPalette;
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}
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const uint8* WSAMovieV1::loadFrame(uint16 frame, uint16* width, uint16* height) {
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if (width) *width = _wsaHeader._width;
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if (height) *height = _wsaHeader._height;
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if (frame == _prefetchedFrame) {
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return _currentFrame;
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} else {
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if (!_currentFrame) {
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_currentFrame = new uint8[_wsaHeader._width * _wsaHeader._height];
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assert(_currentFrame);
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memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
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}
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if (frame >= _wsaHeader._numFrames)
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return 0;
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uint8* frameData = 0;
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static uint8 image40[64000]; // I think this will crash on Plam OS :)
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memset(image40, 0, ARRAYSIZE(image40));
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if (frame == _prefetchedFrame + 1) {
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frameData = _buffer + _offsetTable[frame];
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Compression::decode80(frameData, image40);
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Compression::decode40(image40, _currentFrame);
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} else {
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if (_background) {
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setImageBackground(_background, _backWidth, _backHeight);
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} else {
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memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
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}
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for (uint32 i = 0; i <= frame; ++i)
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{
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frameData = _buffer + _offsetTable[i];
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Compression::decode80(frameData, image40);
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Compression::decode40(image40, _currentFrame);
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}
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}
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_prefetchedFrame = frame;
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return _currentFrame;
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}
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return 0;
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}
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void WSAMovieV1::renderFrame(uint8* plane, uint16 planepitch, uint16 planeheight, uint16 frame) {
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if (!loadFrame(frame, 0, 0))
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return;
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uint8* src = _currentFrame;
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uint8* dst = &plane[_wsaHeader._yPos * planepitch + _wsaHeader._xPos];
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uint32 copysize = planepitch - _wsaHeader._xPos;
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if (copysize > _wsaHeader._width)
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copysize = _wsaHeader._width;
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if (_transparency == -1) {
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for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < planeheight; ++y_) {
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memcpy(dst, src, copysize * sizeof(uint8));
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dst += planepitch;
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src += _wsaHeader._width;
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}
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} else {
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for (uint16 yadd = 0; yadd < _wsaHeader._height; ++yadd) {
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for (uint16 xadd = 0; xadd < copysize; ++xadd) {
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if (*src == _transparency) {
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++dst;
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++src;
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} else {
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*dst++ = *src++;
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}
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}
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src += _wsaHeader._width - copysize;
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dst += planepitch - copysize;
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}
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}
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}
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void WSAMovieV1::setImageBackground(uint8* plane, uint16 planepitch, uint16 height) {
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assert(plane);
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_background = plane;
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_backWidth = planepitch; _backHeight = height;
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if (!_currentFrame) {
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_currentFrame = new uint8[_wsaHeader._width * _wsaHeader._height];
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assert(_currentFrame);
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}
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memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
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uint8* src = &plane[_wsaHeader._yPos * planepitch + _wsaHeader._xPos];
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uint8* dst = _currentFrame;
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uint32 copysize = planepitch - _wsaHeader._xPos;
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if (copysize > _wsaHeader._width)
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copysize = _wsaHeader._width;
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// now copy the rect of the plane
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for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < height; ++y_) {
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memcpy(dst, src, copysize * sizeof(uint8));
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dst += _wsaHeader._width;
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src += planepitch;
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}
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for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < height; ++y_) {
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for (uint16 x = 0; x < _wsaHeader._width; ++x) {
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_currentFrame[y_ * _wsaHeader._width + x] ^= 0;
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}
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}
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_prefetchedFrame = 0xFFFE;
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}
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// Kyrandia 2+ Movies
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WSAMovieV2::WSAMovieV2(uint8* data, uint32 size) {
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if (!data) {
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error("resource created without data");
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}
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_background = 0;
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_currentFrame = 0;
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_ownPalette = 0;
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_offsetTable = 0;
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_prefetchedFrame = 0xFFFE;
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_looping = false;
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_buffer = data;
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// I like these Streams .... =)
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Common::MemoryReadStream datastream(data, size);
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datastream.read(&_wsaHeader, sizeof(_wsaHeader));
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// check for version
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if (!_wsaHeader._type) {
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error("loading a WSA version 1 with the WSA version 2 loader");
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}
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uint16 offsetAdd = 0;
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// checks now for own palette
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if (_wsaHeader._type % 2) {
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// don't now if this will work right, because a few lines before we use
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// _wsaHeader._type for detect the version of the WSA movie,
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// but this code was from FreeKyra Tools so I think it will work
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// if this is a packed palette we have a problem :)
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offsetAdd = 768 /* 0x300 */;
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}
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_offsetTable = new uint32[_wsaHeader._numFrames + 2];
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assert(_offsetTable);
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// loads the offset table
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for (uint32 tmp = 0; tmp < (uint32)_wsaHeader._numFrames + 2; ++tmp) {
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_offsetTable[tmp] = datastream.readUint32LE() + offsetAdd;
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}
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if (offsetAdd) {
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uint8* palbuffer = new uint8[offsetAdd];
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assert(palbuffer);
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datastream.read(palbuffer, offsetAdd);
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_ownPalette = new Palette(palbuffer, offsetAdd);
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assert(_ownPalette);
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}
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if (_offsetTable[_wsaHeader._numFrames + 1] - offsetAdd) {
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++_wsaHeader._numFrames;
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_looping = true;
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}
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_frameCount = _wsaHeader._numFrames;
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}
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WSAMovieV2::~WSAMovieV2() {
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delete [] _buffer;
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delete [] _offsetTable;
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delete [] _currentFrame;
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delete _ownPalette;
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}
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const uint8* WSAMovieV2::loadFrame(uint16 frame, uint16* width, uint16* height) {
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if (width) *width = _wsaHeader._width;
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if (height) *height = _wsaHeader._height;
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if (frame == _prefetchedFrame) {
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return _currentFrame;
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} else {
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if (!_currentFrame) {
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_currentFrame = new uint8[_wsaHeader._width * _wsaHeader._height];
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assert(_currentFrame);
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memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
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}
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if (frame >= _wsaHeader._numFrames)
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return 0;
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uint8* frameData = 0;
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static uint8 image40[64000]; // I think this will crash on Plam OS :)
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memset(image40, 0, ARRAYSIZE(image40));
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if (frame == _prefetchedFrame + 1) {
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frameData = _buffer + _offsetTable[frame];
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Compression::decode80(frameData, image40);
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Compression::decode40(image40, _currentFrame);
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} else {
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if (_background) {
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setImageBackground(_background, _backWidth, _backHeight);
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} else {
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memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
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}
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for (uint32 i = 0; i <= frame; ++i)
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{
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frameData = _buffer + _offsetTable[i];
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Compression::decode80(frameData, image40);
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Compression::decode40(image40, _currentFrame);
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}
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}
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_prefetchedFrame = frame;
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return _currentFrame;
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}
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return 0;
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}
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void WSAMovieV2::renderFrame(uint8* plane, uint16 planepitch, uint16 planeheight, uint16 frame) {
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if (!loadFrame(frame, 0, 0))
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return;
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uint8* src = _currentFrame;
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uint8* dst = &plane[_wsaHeader._yPos * planepitch + _wsaHeader._xPos];
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uint32 copysize = planepitch - _wsaHeader._xPos;
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if (copysize > _wsaHeader._width)
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copysize = _wsaHeader._width;
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if (_transparency == -1) {
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for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < planeheight; ++y_) {
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memcpy(dst, src, copysize * sizeof(uint8));
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dst += planepitch;
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src += _wsaHeader._width;
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}
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} else {
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for (uint16 yadd = 0; yadd < _wsaHeader._height; ++yadd) {
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for (uint16 xadd = 0; xadd < copysize; ++xadd) {
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if (*src == _transparency) {
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++dst;
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++src;
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} else {
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*dst++ = *src++;
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}
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}
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src += _wsaHeader._width - copysize;
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dst += planepitch - copysize;
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}
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}
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}
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void WSAMovieV2::setImageBackground(uint8* plane, uint16 planepitch, uint16 height) {
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assert(plane);
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_background = plane;
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_backWidth = planepitch; _backHeight = height;
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if (!_currentFrame) {
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_currentFrame = new uint8[_wsaHeader._width * _wsaHeader._height];
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assert(_currentFrame);
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}
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memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
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uint8* src = &plane[_wsaHeader._yPos * planepitch + _wsaHeader._xPos];
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uint8* dst = _currentFrame;
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uint32 copysize = planepitch - _wsaHeader._xPos;
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if (copysize > _wsaHeader._width)
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copysize = _wsaHeader._width;
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// now copy the rect of the plane
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for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < height; ++y_) {
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memcpy(dst, src, copysize * sizeof(uint8));
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dst += _wsaHeader._width;
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src += planepitch;
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}
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for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < height; ++y_) {
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for (uint16 x = 0; x < _wsaHeader._width; ++x) {
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_currentFrame[y_ * _wsaHeader._width + x] ^= 0;
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}
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}
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_prefetchedFrame = 0xFFFE;
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}
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} // end of namespace Kyra
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