diff options
Diffstat (limited to 'engines/access/video.cpp')
| -rw-r--r-- | engines/access/video.cpp | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/engines/access/video.cpp b/engines/access/video.cpp new file mode 100644 index 0000000000..63d0aa5c89 --- /dev/null +++ b/engines/access/video.cpp @@ -0,0 +1,187 @@ +/* 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 "access/video.h" +#include "access/access.h" + +namespace Access { + +VideoPlayer::VideoPlayer(AccessEngine *vm) : Manager(vm) { + _vidSurface = nullptr; + _videoData = nullptr; + _startCoord = nullptr; + + _frameCount = 0; + _xCount = 0; + _scanCount = 0; + _frameSize = 0; + _videoFrame = 0; + _soundFlag = false; + _soundFrame = 0; + _videoEnd = false; + + _header._frameCount = 0; + _header._width = _header._height = 0; + _header._flags = VIDEOFLAG_NONE; +} + +VideoPlayer::~VideoPlayer() { + closeVideo(); +} + + +void VideoPlayer::setVideo(ASurface *vidSurface, const Common::Point &pt, const FileIdent &videoFile, int rate) { + _vidSurface = vidSurface; + vidSurface->_orgX1 = pt.x; + vidSurface->_orgY1 = pt.y; + _vm->_timers[31]._timer = rate; + _vm->_timers[31]._initTm = rate; + + // Open up video stream + _videoData = _vm->_files->loadFile(videoFile); + + // Load in header + _header._frameCount = _videoData->_stream->readUint16LE(); + _header._width = _videoData->_stream->readUint16LE(); + _header._height = _videoData->_stream->readUint16LE(); + _videoData->_stream->skip(1); + _header._flags = (VideoFlags)_videoData->_stream->readByte(); + + _startCoord = (byte *)vidSurface->getBasePtr(pt.x, pt.y); + _frameCount = _header._frameCount - 2; + _xCount = _header._width; + _scanCount = _header._height; + _videoFrame = 0; + _videoBounds = Common::Rect(pt.x, pt.y, pt.x + _header._width, pt.y + _header._height); + + getFrame(); + + if (_header._flags == VIDEOFLAG_BG) { + // Draw the background + for (int y = 0; y < _scanCount; ++y) { + byte *pDest = (byte *)vidSurface->getBasePtr(pt.x, pt.y + y); + _videoData->_stream->read(pDest, _xCount); + } + + if (vidSurface == _vm->_screen) + _vm->_newRects.push_back(Common::Rect(pt.x, pt.y, pt.x + _xCount, pt.y + _scanCount)); + + getFrame(); + } + + _videoEnd = false; +} + +void VideoPlayer::closeVideo() { + delete _videoData; + _videoData = nullptr; +} + +void VideoPlayer::getFrame() { + _frameSize = _videoData->_stream->readUint16LE(); +} + +void VideoPlayer::playVideo() { + if (_vm->_timers[31]._flag) + return; + ++_vm->_timers[31]._flag; + + byte *pDest = _startCoord; + byte *pLine = _startCoord; + uint32 frameEnd = _videoData->_stream->pos() + _frameSize; + + while ((uint32)_videoData->_stream->pos() < frameEnd) { + int count = _videoData->_stream->readByte(); + + if (count & 0x80) { + count &= 0x7f; + + // Skip count number of pixels + // Loop across lines if necessary + while (count >= (pLine + _xCount - pDest)) { + count -= (pLine + _xCount - pDest); + pLine += _vidSurface->pitch; + pDest = pLine; + } + + // Skip any remaining pixels in the new line + pDest += count; + } else { + // Read count number of pixels + + // Load across lines if necessary + while (count >= (pLine + _xCount - pDest)) { + int lineCount = (pLine + _xCount - pDest); + _videoData->_stream->read(pDest, lineCount); + count -= lineCount; + pLine += _vidSurface->pitch; + pDest = pLine; + } + + // Load remainder of pixels on line + if (count > 0) { + _videoData->_stream->read(pDest, count); + pDest += count; + } + } + } + + // If the video is playing on the screen surface, add a dirty rect + if (_vidSurface == _vm->_screen) + _vm->_screen->addDirtyRect(_videoBounds); + + getFrame(); + if (++_videoFrame == _frameCount) { + closeVideo(); + _videoEnd = true; + } +} + +void VideoPlayer::copyVideo() { + _vm->_player->calcPlayer(); + + // Figure out the dirty rect area for the video frame + Common::Rect r = Common::Rect(_vm->_vidX - _vm->_screen->_bufferStart.x, + _vm->_vidY - _vm->_screen->_bufferStart.y, + _vm->_vidX - _vm->_screen->_bufferStart.x + _header._width, + _vm->_vidY - _vm->_screen->_bufferStart.y + _header._height); + if (!_vm->_screen->clip(r)) + return; + _vm->_newRects.push_back(r); + + int vh = _header._height; + int vw = _header._width; + int destIdx = _vm->_vidX - _vm->_screen->_bufferStart.x; + int srcIdx = _vm->_screen->_leftSkip; + for (int i = 0; i < _vm->_screen->_topSkip; i++) + destIdx += 160; + + const byte *srcP = (const byte *)_vm->_vidBuf.getPixels() + srcIdx; + byte *destP = (byte *)_vm->_buffer2.getPixels() + destIdx; + for (int i = 0; i < vh; i++) { + Common::copy(srcP, srcP + vw, destP); + srcP += _vm->_vidBuf.pitch; + destP += _vm->_buffer2.pitch; + } +} + +} // End of namespace Access |