155 lines
5.1 KiB
C++
155 lines
5.1 KiB
C++
#ifndef RAGE_MOVIE_TEXTURE_GENERIC_H
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#define RAGE_MOVIE_TEXTURE_GENERIC_H
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#include "MovieTexture.h"
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#include "RageThreads.h"
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class FFMpeg_Helper;
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struct RageSurface;
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class MovieDecoder
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{
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public:
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virtual ~MovieDecoder() { }
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virtual RString Open( RString sFile ) = 0;
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virtual void Close() = 0;
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/*
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* Decode a frame. Return 1 on success, 0 on EOF, -1 on fatal error.
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*
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* If we're lagging behind the video, fTargetTime will be the target
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* timestamp. The decoder may skip frames to catch up. On return,
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* the current timestamp must be <= fTargetTime.
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*
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* Otherwise, fTargetTime will be -1, and the next frame should be
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* decoded; skip frames only if necessary to recover from errors.
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*/
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virtual int GetFrame( RageSurface *pOut, float fTargetTime ) = 0;
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/* Return the dimensions of the image, in pixels (before aspect ratio
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* adjustments). */
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virtual int GetWidth() const = 0;
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virtual int GetHeight() const = 0;
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/* Return the aspect ratio of a pixel in the image. Usually 1. */
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virtual float GetSourceAspectRatio() const { return 1.0f; }
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/* Create a surface acceptable to pass to GetFrame. This should be
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* a surface which is realtime-compatible with DISPLAY, and should
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* attempt to obey bPreferHighColor. The given size will usually be
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* the next power of two higher than GetWidth/GetHeight, but on systems
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* with limited texture resolution, may be smaller. */
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virtual RageSurface *CreateCompatibleSurface( int iTextureWidth, int iTextureHeight, bool bPreferHighColor ) = 0;
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/* The following functions return information about the current frame,
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* decoded by the last successful call to GetFrame, and will never be
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* called before that. */
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/* Get the timestamp, in seconds, when the current frame should be
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* displayed. The first frame will always be 0. */
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virtual float GetTimestamp() const = 0;
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/* Get the duration, in seconds, to display the current frame. */
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virtual float GetFrameDuration() const = 0;
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};
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class MovieTexture_Generic: public RageMovieTexture
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{
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public:
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MovieTexture_Generic( RageTextureID ID, MovieDecoder *pDecoder );
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virtual ~MovieTexture_Generic();
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RString Init();
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/* only called by RageTextureManager::InvalidateTextures */
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void Invalidate() { m_uTexHandle = 0; }
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void Update( float fDeltaTime );
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virtual void Reload();
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virtual void SetPosition( float fSeconds );
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virtual void DecodeSeconds( float fSeconds );
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virtual void SetPlaybackRate( float fRate ) { m_fRate = fRate; }
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void SetLooping( bool bLooping=true ) { m_bLoop = bLooping; }
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unsigned GetTexHandle() const { return m_uTexHandle; }
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private:
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MovieDecoder *m_pDecoder;
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float m_fRate;
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enum {
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FRAME_NONE, /* no frame available; call GetFrame to get one */
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FRAME_DECODED, /* frame decoded; waiting until it's time to display it */
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FRAME_WAITING /* frame waiting to be uploaded */
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} m_ImageWaiting;
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bool m_bLoop;
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bool m_bWantRewind;
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bool m_bThreaded;
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/*
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* Only the main thread can change m_State.
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*
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* DECODER_QUIT: The decoder thread is not running. We should only
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* be in this state internally; when we return after a call, we should
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* never be in this state. Start the thread before returning.
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*
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* PAUSE_DECODER: The decoder thread is idle.
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*
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* PLAYING: The decoder thread is running.
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*/
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enum State { DECODER_QUIT, DECODER_RUNNING } m_State;
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unsigned m_uTexHandle;
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RageSurface *m_pSurface;
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RageSemaphore m_BufferFinished;
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/* The time the movie is actually at: */
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float m_fClock;
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bool m_bFrameSkipMode;
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static int DecoderThread_start(void *p) { ((MovieTexture_Generic *)(p))->DecoderThread(); return 0; }
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void DecoderThread();
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RageThread m_DecoderThread;
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void UpdateFrame();
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void CreateTexture();
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void DestroyTexture();
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void StartThread();
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void StopThread();
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bool DecodeFrame();
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float CheckFrameTime();
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void DiscardFrame();
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};
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#endif
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/*
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* (c) 2003-2005 Glenn Maynard
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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