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Initial commit of Command & Conquer Red Alert source code.
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LFeenanEA
329
WIN32LIB/MOVIE/MOVIE.CPP
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329
WIN32LIB/MOVIE/MOVIE.CPP
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/*
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** Command & Conquer Red Alert(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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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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**
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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, see <http://www.gnu.org/licenses/>.
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*/
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/****************************************************************************
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*
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* FILE
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* Movie.cpp
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*
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* DESCRIPTION
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* Movie playback using DirectShow Multimedia streaming and DirectDraw
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*
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* PROGRAMMER
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* Denzil E. Long, Jr.
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*
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* DATE
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* May 27, 1998
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*
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****************************************************************************/
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#include "movie.h"
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#include <mmstream.h>
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#include <streams.h>
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#include <amstream.h>
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#include <ddstream.h>
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#include <stdio.h>
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// We declare these variables global because RA doesn't like the DirectXMedia
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// header files.
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IDirectDraw* gDDraw = NULL;
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IGraphBuilder* gGB = NULL;
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IMultiMediaStream* gMMStream = NULL;
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IMediaStream* gVideoStream = NULL;
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IDirectDrawMediaStream* gDDStream = NULL;
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IDirectDrawStreamSample* gDDSample = NULL;
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/****************************************************************************
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*
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* NAME
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* Movie - Constructor
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*
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* DESCRIPTION
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*
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* INPUTS
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*
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* RESULT
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*
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****************************************************************************/
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Movie::Movie(IDirectDraw* dd)
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{
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mPlaying = false;
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Close();
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gDDraw = dd;
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// Initialize COM library
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CoInitialize(NULL);
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}
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/****************************************************************************
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*
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* NAME
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* ~Movie - Destructor
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*
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* DESCRIPTION
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*
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* INPUTS
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*
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* RESULT
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*
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****************************************************************************/
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Movie::~Movie()
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{
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// Release all
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Close();
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// Release COM library
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CoUninitialize();
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}
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/****************************************************************************
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*
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* NAME
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* Open
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*
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* DESCRIPTION
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*
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* INPUTS
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* Name - Name of movie
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*
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* RESULT
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*
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****************************************************************************/
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bool Movie::Open(const char* name)
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{
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WCHAR wFile[MAX_PATH];
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IAMMultiMediaStream* amStream;
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DDSURFACEDESC ddsd;
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Close();
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//-------------------------------------------------------------------------
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// CREATE FILTER GRAPH FOR FILE TYPE
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//-------------------------------------------------------------------------
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if (FAILED(CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
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IID_IGraphBuilder, (void **)&gGB)))
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{
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MessageBox(GetDesktopWindow(), "Couldn't create a CLSID_FilterGraph object.\n",
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"DirectMedia", MB_ICONSTOP|MB_OK);
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return false;
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}
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//-------------------------------------------------------------------------
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// CREATE MULTIMEDIA STREAM
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//-------------------------------------------------------------------------
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if (FAILED(CoCreateInstance(CLSID_AMMultiMediaStream, NULL,
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CLSCTX_INPROC_SERVER, IID_IAMMultiMediaStream, (void**)&amStream)))
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{
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Close();
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MessageBox(GetDesktopWindow(), "Couldn't create a CLSID_MultiMediaStream object.\n",
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"DirectMedia", MB_ICONSTOP|MB_OK);
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return false;
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}
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// Initialize stream for reading
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if (FAILED(amStream->Initialize(STREAMTYPE_READ, 0, gGB)))
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{
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amStream->Release();
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Close();
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MessageBox(GetDesktopWindow(), "Couldn't initialize MultiMediaStream object.\n",
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"DirectMedia", MB_ICONSTOP|MB_OK);
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return false;
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}
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// We want video
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if (FAILED(amStream->AddMediaStream(gDDraw, &MSPID_PrimaryVideo, 0, NULL)))
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{
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amStream->Release();
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Close();
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MessageBox(GetDesktopWindow(), "Couldn't add primary video stream.\n",
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"DirectMedia", MB_ICONSTOP|MB_OK);
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return false;
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}
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// We want audio
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if (FAILED(amStream->AddMediaStream(NULL, &MSPID_PrimaryAudio,
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AMMSF_ADDDEFAULTRENDERER, NULL)))
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{
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amStream->Release();
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Close();
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MessageBox(GetDesktopWindow(), "Couldn't add primary audio stream.\n",
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"DirectMedia", MB_ICONSTOP|MB_OK);
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return false;
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}
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gMMStream = amStream;
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// Convert the filename
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MultiByteToWideChar(CP_ACP,0,name,-1,wFile,sizeof(wFile)/sizeof(wFile[0]));
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if (FAILED(gGB->RenderFile(wFile, NULL)))
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{
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Close();
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MessageBox(GetDesktopWindow(), "Couldn't build filter graph.\n",
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"DirectMedia", MB_ICONSTOP|MB_OK);
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return false;
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}
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// Get video stream
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if (FAILED(gMMStream->GetMediaStream(MSPID_PrimaryVideo, &gVideoStream)))
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{
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Close();
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MessageBox(GetDesktopWindow(), "Couldn't obtain video stream.\n",
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"DirectMedia", MB_ICONSTOP|MB_OK);
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return false;
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}
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if (FAILED(gVideoStream->QueryInterface(IID_IDirectDrawMediaStream,
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(void **)&gDDStream)))
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{
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Close();
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MessageBox(GetDesktopWindow(), "Couldn't obtain video stream interface.\n",
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"DirectMedia", MB_ICONSTOP|MB_OK);
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return false;
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}
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ddsd.dwSize = sizeof(ddsd);
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gDDStream->GetFormat(&ddsd, NULL, NULL, NULL);
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mHeight = ddsd.dwHeight;
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mWidth = ddsd.dwWidth;
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return true;
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}
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/****************************************************************************
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*
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* NAME
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*
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* DESCRIPTION
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*
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* INPUTS
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*
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* RESULT
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*
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****************************************************************************/
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void Movie::Close(void)
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{
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// Stop currently playing movie
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if ((gMMStream != NULL) && (mPlaying == true))
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{
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gMMStream->SetState(STREAMSTATE_STOP);
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mPlaying = false;
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}
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// Release video sample
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if (gDDSample)
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{
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gDDSample->Release();
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gDDSample = NULL;
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}
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// Release DirectDrawMediaStream interface
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if (gDDStream)
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{
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gDDStream->Release();
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gDDStream = NULL;
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}
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// Release video stream
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if (gVideoStream)
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{
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gVideoStream->Release();
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gVideoStream = NULL;
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}
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// Release multimedia stream
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if (gMMStream)
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{
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gMMStream->Release();
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gMMStream = NULL;
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}
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// Release filter graph
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if (gGB)
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{
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gGB->Release();
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gGB = NULL;
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}
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}
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/****************************************************************************
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*
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* NAME
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* Play
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*
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* DESCRIPTION
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*
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* INPUTS
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*
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* RESULT
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*
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****************************************************************************/
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bool Movie::Play(IDirectDrawSurface* surface)
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{
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RECT rect;
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rect.top = rect.left = 0;
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rect.bottom = mHeight;
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rect.right = mWidth;
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if (FAILED(gDDStream->CreateSample(surface, &rect, 0, &gDDSample)))
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{
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return false;
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}
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gMMStream->SetState(STREAMSTATE_RUN);
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mPlaying = true;
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return true;
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}
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/****************************************************************************
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*
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* NAME
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* Update
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*
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* DESCRIPTION
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*
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* INPUTS
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*
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* RESULT
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*
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****************************************************************************/
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bool Movie::Update(void)
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{
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// Update each frame
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if (gDDSample->Update(0, NULL, NULL, 0) != S_OK)
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{
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gMMStream->SetState(STREAMSTATE_STOP);
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return false;
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}
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return true;
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}
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