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Diffstat (limited to 'engines/toltecs/animation.cpp')
| -rw-r--r-- | engines/toltecs/animation.cpp | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/engines/toltecs/animation.cpp b/engines/toltecs/animation.cpp new file mode 100644 index 0000000000..eef9cef9ed --- /dev/null +++ b/engines/toltecs/animation.cpp @@ -0,0 +1,164 @@ +/* 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. + * + * + */ + +#include "toltecs/toltecs.h" +#include "toltecs/animation.h" +#include "toltecs/palette.h" +#include "toltecs/screen.h" + +namespace Toltecs { + +AnimationPlayer::AnimationPlayer(ToltecsEngine *vm) : _vm(vm) { + _animBuffer = new byte[262144]; +} + +AnimationPlayer::~AnimationPlayer() { + delete[] _animBuffer; +} + +void AnimationPlayer::start(uint resIndex) { + debug(1, "AnimationPlayer::start(%d)", resIndex); + + _resIndex = resIndex; + + _vm->_arc->openResource(_resIndex); + _height = _vm->_arc->readUint16LE(); + _width = _vm->_arc->readUint16LE(); + _frameCount = _vm->_arc->readUint16LE(); + _vm->_arc->read(_vm->_palette->getAnimPalette(), 768); + _curFrameSize = _vm->_arc->readUint32LE(); + _nextFrameOffset = _curFrameSize + 782; + _vm->_arc->read(_animBuffer, _curFrameSize); + _nextFrameSize = _vm->_arc->readUint32LE(); + _vm->_arc->closeResource(); + + debug(1, "AnimationPlayer::start() width = %d; height = %d; frameCount = %d", _width, _height, _frameCount); + + _vm->_sceneWidth = _width; + _vm->_sceneHeight = _height; + + unpackFrame(); + + _keepFrameCounter = 0; + _frameNumber = 0; + // TODO mov screenFlag01, 0FFFFh + // TODO mov animDrawFrameFlag, 0FFFFh + + _firstNextFrameOffset = _nextFrameOffset; + _firstCurFrameSize = _curFrameSize; + _firstNextFrameSize = _nextFrameSize; + +} + +void AnimationPlayer::nextFrame() { + debug(1, "AnimationPlayer::nextFrame()"); + + if (_frameNumber == _frameCount) { + _nextFrameOffset = _firstNextFrameOffset; + _curFrameSize = _firstCurFrameSize; + _nextFrameSize = _firstNextFrameSize; + _frameNumber = 1; + } else { + _frameNumber++; + } + + debug(1, "AnimationPlayer::nextFrame() frameNumber = %d", _frameNumber); + + if (_keepFrameCounter > 0) { + _keepFrameCounter--; + return; + } + + _vm->_arc->openResource(_resIndex); + _vm->_arc->seek(_nextFrameOffset, SEEK_CUR); + _curFrameSize = _nextFrameSize; + + if (_curFrameSize == 0) + _curFrameSize = 1; + + _vm->_arc->read(_animBuffer, _curFrameSize); + _nextFrameSize = _vm->_arc->readUint32LE(); + _nextFrameOffset += _curFrameSize + 4; + + if (_curFrameSize > 1) { + unpackFrame(); + // TODO mov animDrawFrameFlag, 0FFFFh + } else { + _keepFrameCounter = _animBuffer[0] - 1; + // TODO mov animDrawFrameFlag, 0 + } + + _vm->_arc->closeResource(); + + +} + +int16 AnimationPlayer::getStatus() { + debug(1, "AnimationPlayer::getStatus()"); + int16 status = -1; + if (_frameNumber == _frameCount) + status = 0; + else if (_frameNumber == _frameCount - 1) + status = 1; + debug(1, "AnimationPlayer::getStatus() status = %d", status); + return status; +} + +void AnimationPlayer::unpackFrame() { + _vm->_screen->unpackRle(_animBuffer, _vm->_screen->_frontScreen, _width, _height); + _vm->_screen->unpackRle(_animBuffer, _vm->_screen->_backScreen, _width, _height); + _vm->_screen->_fullRefresh = true; +} + +void AnimationPlayer::saveState(Common::WriteStream *out) { + out->writeUint16LE(_resIndex); + // NOTE: The original engine doesn't save width/height, but we do + out->writeUint16LE(_width); + out->writeUint16LE(_height); + out->writeUint16LE(_frameCount); + out->writeUint16LE(_frameNumber); + out->writeUint32LE(_keepFrameCounter); + out->writeUint32LE(_curFrameSize); + out->writeUint32LE(_nextFrameSize); + out->writeUint32LE(_nextFrameOffset); + out->writeUint32LE(_firstCurFrameSize); + out->writeUint32LE(_firstNextFrameSize); + out->writeUint32LE(_firstNextFrameOffset); +} + +void AnimationPlayer::loadState(Common::ReadStream *in) { + _resIndex = in->readUint16LE(); + _width = in->readUint16LE(); + _height = in->readUint16LE(); + _frameCount = in->readUint16LE(); + _frameNumber = in->readUint16LE(); + _keepFrameCounter = in->readUint32LE(); + _curFrameSize = in->readUint32LE(); + _nextFrameSize = in->readUint32LE(); + _nextFrameOffset = in->readUint32LE(); + _firstCurFrameSize = in->readUint32LE(); + _firstNextFrameSize = in->readUint32LE(); + _firstNextFrameOffset = in->readUint32LE(); +} + +} // End of namespace Toltecs |