Glenn Maynard
8fd300ac6f
this will cause Sprite to turn off blending if it can may speed up bg's on slower hardware
313 lines
8.5 KiB
C++
313 lines
8.5 KiB
C++
#include "stdafx.h"
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/*
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-----------------------------------------------------------------------------
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Class: RageMovieTexture
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Desc: See header.
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Copyright (c) 2001-2002 by the person(s) listed below. All rights reserved.
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Chris Danford
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Glenn Maynard
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-----------------------------------------------------------------------------
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*/
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#pragma comment(lib, "winmm.lib")
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// Link with the DirectShow base class libraries
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#if defined(DEBUG) | defined(_DEBUG)
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#pragma comment(lib, "baseclasses/debug/strmbasd.lib")
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#else
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#pragma comment(lib, "baseclasses/release/strmbase.lib")
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#endif
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#include "RageMovieTextureHelper.h"
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#include "RageMovieTexture.h"
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#include "RageUtil.h"
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#include "RageLog.h"
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#include "RageException.h"
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#include <stdio.h>
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#define NO_SDL_GLEXT
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#define __glext_h_ /* try harder to stop glext.h from being forced on us by someone else */
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#include "SDL_opengl.h"
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#include "glext.h"
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//-----------------------------------------------------------------------------
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// RageMovieTexture constructor
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//-----------------------------------------------------------------------------
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RageMovieTexture::RageMovieTexture( RageTextureID ID ) :
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RageTexture( ID )
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{
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LOG->Trace( "RageBitmapTexture::RageBitmapTexture()" );
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buffer_changed = false;
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m_uGLTextureID = 0;
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buffer = NULL;
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Create();
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CreateFrameRects();
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// flip all frame rects because movies are upside down
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for( unsigned i=0; i<m_TextureCoordRects.size(); i++ )
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{
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float fTemp = m_TextureCoordRects[i].top;
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m_TextureCoordRects[i].top = m_TextureCoordRects[i].bottom;
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m_TextureCoordRects[i].bottom = fTemp;
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}
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m_bLoop = true;
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m_bPlaying = false;
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}
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RageMovieTexture::~RageMovieTexture()
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{
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LOG->Trace("RageMovieTexture::~RageMovieTexture");
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// Shut down the graph
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if (m_pGB) {
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Stop();
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m_pGB.Release ();
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}
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delete [] buffer;
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if(m_uGLTextureID)
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glDeleteTextures(1, &m_uGLTextureID);
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}
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void RageMovieTexture::Reload()
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{
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// do nothing
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}
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unsigned int RageMovieTexture::GetGLTextureID()
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{
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CheckMovieStatus(); // restart the movie if we reach the end
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return m_uGLTextureID;
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}
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void RageMovieTexture::Update(float fDeltaTime)
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{
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LockMutex L(buffer_mutex);
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if(!buffer_changed)
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return;
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buffer_changed = false;
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DISPLAY->SetTexture(this);
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glPixelStorei(GL_UNPACK_SWAP_BYTES, 1);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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/* XXX: We should use m_lVidPitch; we might be padded. However, I can't
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* find any codec that don't force the width to a multiple of at least
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* 4 anyway, so I can't test it, so I'll leave it like this for now. */
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glPixelStorei(GL_UNPACK_ROW_LENGTH, m_iSourceWidth);
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glTexSubImage2D(GL_TEXTURE_2D, 0,
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0, 0,
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min(m_iSourceWidth, m_iTextureWidth),
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min(m_iSourceHeight, m_iTextureHeight),
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GL_BGR, GL_UNSIGNED_BYTE, buffer);
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/* Must unset PixelStore when we're done! */
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glPixelStorei(GL_UNPACK_SWAP_BYTES, 0);
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glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
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glFlush();
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}
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void HandleDivXError(HRESULT hr, CString s)
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{
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/* Actually, we might need XviD; we might want to look
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* at the file and try to figure out if it's something
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* common: DIV3, DIV4, DIV5, XVID, or maybe even MPEG2. */
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CString err = hr_ssprintf(hr, "%s", s.GetString());
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RageException::Throw(
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ssprintf(
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"There was an error initializing a movie: %s.\n"
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"Could not locate the DivX video codec.\n"
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"DivX is required to movie textures and must\n"
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"be installed before running the application.\n\n"
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"Please visit http://www.divx.com to download the latest version.",
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err.GetString())
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);
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}
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void RageMovieTexture::Create()
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{
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HRESULT hr;
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m_ActualID.iAlphaBits = 0;
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if( FAILED( hr=CoInitialize(NULL) ) )
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RageException::Throw( hr_ssprintf(hr, "Could not CoInitialize") );
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// Create the filter graph
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if( FAILED( hr=m_pGB.CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC) ) )
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RageException::Throw( hr_ssprintf(hr, "Could not create CLSID_FilterGraph!") );
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// Create the Texture Renderer object
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CTextureRenderer *pCTR = new CTextureRenderer;
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/* Get a pointer to the IBaseFilter on the TextureRenderer, and add it to the
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* graph. When m_pGB is released, it will free pFTR. */
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CComPtr<IBaseFilter> pFTR = pCTR;
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if( FAILED( hr = m_pGB->AddFilter(pFTR, L"TEXTURERENDERER" ) ) )
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RageException::Throw( hr_ssprintf(hr, "Could not add renderer filter to graph!") );
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// Add the source filter
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CComPtr<IBaseFilter> pFSrc; // Source Filter
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WCHAR wFileName[MAX_PATH];
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MultiByteToWideChar(CP_ACP, 0, m_ActualID.filename.GetString(), -1, wFileName, MAX_PATH);
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// if this fails, it's probably because the user doesn't have DivX installed
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if( FAILED( hr = m_pGB->AddSourceFilter( wFileName, L"SOURCE", &pFSrc ) ) )
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{
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HandleDivXError(hr, "Could not create source filter to graph!");
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}
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// Find the source's output and the renderer's input
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CComPtr<IPin> pFTRPinIn; // Texture Renderer Input Pin
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if( FAILED( hr = pFTR->FindPin( L"In", &pFTRPinIn ) ) )
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RageException::Throw( hr_ssprintf(hr, "Could not find input pin!") );
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CComPtr<IPin> pFSrcPinOut; // Source Filter Output Pin
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if( FAILED( hr = pFSrc->FindPin( L"Output", &pFSrcPinOut ) ) )
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RageException::Throw( hr_ssprintf(hr, "Could not find output pin!") );
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// Connect these two filters
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if( FAILED( hr = m_pGB->Connect( pFSrcPinOut, pFTRPinIn ) ) )
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{
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HandleDivXError(hr, "Could not connect pins!");
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}
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// Pass us to our TextureRenderer.
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pCTR->SetRenderTarget(this);
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// The graph is built, now get the set the output video width and height.
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// The source and image width will always be the same since we can't scale the video
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m_iSourceWidth = pCTR->GetVidWidth();
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m_iSourceHeight = pCTR->GetVidHeight();
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/* We've set up the movie, so we know the dimensions we need. Set
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* up the texture. */
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CreateTexture();
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// Start the graph running
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if( !PlayMovie() )
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RageException::Throw( "Could not run the DirectShow graph." );
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}
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void RageMovieTexture::NewData(char *data)
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{
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LockMutex L(buffer_mutex);
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buffer_changed = true;
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memcpy(buffer, data, m_iSourceWidth * m_iSourceHeight * 3);
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}
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bool RageMovieTexture::CreateTexture()
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{
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/* image size cannot exceed max size */
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m_iImageWidth = min( m_iSourceWidth, m_ActualID.iMaxSize );
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m_iImageHeight = min( m_iSourceHeight, m_ActualID.iMaxSize );
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/* Texture dimensions need to be a power of two; jump to the next. */
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m_iTextureWidth = power_of_two(m_iImageWidth);
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m_iTextureHeight = power_of_two(m_iImageHeight);
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buffer = new char[m_iSourceWidth * m_iSourceHeight * 3];
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if(!m_uGLTextureID)
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glGenTextures(1, &m_uGLTextureID);
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DISPLAY->SetTexture(this);
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/* Initialize the texture and set it to black. */
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string buf(m_iTextureWidth*m_iTextureHeight*3, 0);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8,
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m_iTextureWidth, m_iTextureHeight, 0, GL_BGR, GL_UNSIGNED_BYTE, buf.data());
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return true;
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}
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bool RageMovieTexture::PlayMovie()
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{
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LOG->Trace("RageMovieTexture::PlayMovie()");
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CComPtr<IMediaControl> pMC;
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m_pGB.QueryInterface(&pMC);
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// Start the graph running;
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HRESULT hr;
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if( FAILED( hr = pMC->Run() ) )
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RageException::Throw( hr_ssprintf(hr, "Could not run the DirectShow graph.") );
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m_bPlaying = true;
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return true;
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}
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//-----------------------------------------------------------------------------
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// CheckMovieStatus: If the movie has ended, rewind to beginning
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//-----------------------------------------------------------------------------
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void RageMovieTexture::CheckMovieStatus()
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{
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if(!m_bLoop) return;
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// Check for completion events
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CComPtr<IMediaEvent> pME;
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m_pGB.QueryInterface(&pME);
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long lEventCode, lParam1, lParam2;
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pME->GetEvent( &lEventCode, &lParam1, &lParam2, 0 );
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if( EC_COMPLETE == lEventCode )
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SetPosition(0);
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}
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void RageMovieTexture::Play()
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{
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PlayMovie();
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}
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void RageMovieTexture::Pause()
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{
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CComPtr<IMediaControl> pMC;
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m_pGB.QueryInterface(&pMC);
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HRESULT hr;
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if( FAILED( hr = pMC->Pause() ) )
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RageException::Throw( hr_ssprintf(hr, "Could not pause the DirectShow graph.") );
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}
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void RageMovieTexture::Stop()
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{
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CComPtr<IMediaControl> pMC;
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m_pGB.QueryInterface(&pMC);
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HRESULT hr;
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if( FAILED( hr = pMC->Stop() ) )
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RageException::Throw( hr_ssprintf(hr, "Could not stop the DirectShow graph.") );
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m_bPlaying = false;
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}
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void RageMovieTexture::SetPosition( float fSeconds )
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{
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CComPtr<IMediaPosition> pMP;
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m_pGB.QueryInterface(&pMP);
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pMP->put_CurrentPosition(0);
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}
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bool RageMovieTexture::IsPlaying() const
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{
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return m_bPlaying;
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}
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