add support for texture coordinate animation in AnimatedTexture

stepmania/src/Actor.h

@@ -305,9 +305,13 @@ public:
 	virtual void HandleCommand( const ParsedCommand &command );	// derivable
 	static float GetCommandLength( CString command );
 
-	virtual void SetState( int iNewState ) {};
+	//
-	virtual void SetSecondsIntoAnimation( float fSeconds ) {};
+	// Animation
-	virtual int GetNumStates() { return 1; };
+	//
+	virtual int GetNumStates() const { return 1; }
+	virtual void SetState( int iNewState ) {}
+	virtual float GetAnimationLengthSeconds() const { return 0; }
+	virtual void SetSecondsIntoAnimation( float fSeconds ) {}
 
 	//
 	// BGAnimation stuff

stepmania/src/Model.cpp

@@ -11,6 +11,7 @@
 #include "ActorUtil.h"
 #include <cerrno>
 #include "ModelManager.h"
+#include "Foreach.h"
 
 const float FRAMES_PER_SECOND = 30;
 const CString DEFAULT_ANIMATION_NAME = "default";
@@ -467,6 +468,8 @@ void Model::DrawPrimitives()
 				DISPLAY->PreMultMatrix( mat );
 			}
 		
+			DISPLAY->TexturePushMatrix();
+
 			if( pMesh->nMaterialIndex != -1 )	// has a material
 			{
 			// apply material
@@ -482,15 +485,25 @@ void Model::DrawPrimitives()
 
 				DISPLAY->SetMaterial( Emissive, Ambient, Diffuse, mat.Specular, mat.fShininess );
 
+				float fScrollX = 0;
+				float fScrollY = 0;
+				if( mat.diffuse.m_fTexVelocityX != 0  ||  mat.diffuse.m_fTexVelocityY != 0 )
+				{
+					fScrollX = mat.diffuse.m_fTexVelocityX * mat.diffuse.GetSecondsIntoAnimation() / mat.diffuse.GetAnimationLengthSeconds();
+					fScrollY = mat.diffuse.m_fTexVelocityY * mat.diffuse.GetSecondsIntoAnimation() / mat.diffuse.GetAnimationLengthSeconds();
+					DISPLAY->SetTextureWrapping( true );
+				}
+				DISPLAY->TextureTranslate( fScrollX, fScrollY, 0 );
+
 				// render the first pass with texture 1
-				DISPLAY->SetTexture( 0, mat.diffuse.ani.GetCurrentTexture() );
+				DISPLAY->SetTexture( 0, mat.diffuse.GetCurrentTexture() );
-				DISPLAY->SetSphereEnironmentMapping( mat.diffuse.bSphereMapped );
+				DISPLAY->SetSphereEnironmentMapping( mat.diffuse.m_bSphereMapped );
 				
 				// render the second pass with texture 2
-				if( mat.alpha.ani.GetCurrentTexture() )
+				if( mat.alpha.GetCurrentTexture() )
 				{
-					DISPLAY->SetTexture( 1, mat.alpha.ani.GetCurrentTexture() );
+					DISPLAY->SetTexture( 1, mat.alpha.GetCurrentTexture() );
-					DISPLAY->SetSphereEnironmentMapping( mat.alpha.bSphereMapped );
+					DISPLAY->SetSphereEnironmentMapping( mat.alpha.m_bSphereMapped );
 					// UGLY:  This overrides the Actor's BlendMode
 					DISPLAY->SetTextureModeAdd();
 					DISPLAY->SetTextureFiltering( true );
@@ -512,6 +525,8 @@ void Model::DrawPrimitives()
 			DISPLAY->DrawCompiledGeometry( TempGeometry, i, m_pGeometry->m_Meshes );
 			DISPLAY->SetSphereEnironmentMapping( false );
 
+			DISPLAY->TexturePopMatrix();
+
 			if( pMesh->nBoneIndex != -1 )
 			{
 				DISPLAY->PopMatrix();
@@ -549,7 +564,7 @@ void Model::DrawPrimitives()
 			if( pMesh->nMaterialIndex != -1 )
 			{
 				msMaterial& mat = m_Materials[ pMesh->nMaterialIndex ];
-				DISPLAY->SetTexture( 0, mat.diffuse.ani.GetCurrentTexture() );
+				DISPLAY->SetTexture( 0, mat.diffuse.GetCurrentTexture() );
 			}
 			else
 			{
@@ -661,13 +676,6 @@ void Model::PlayAnimation( CString sAniName, float fPlayRate )
 	AdvanceFrame( 0.0f );
 }
 
-float Model::GetCurFrame() { return m_fCurrFrame; };
-
-void Model::SetFrame( float fNewFrame )
-{
-	m_fCurrFrame = fNewFrame;
-}
-
 void Model::AdvanceFrame (float dt)
 {
 	if( m_pGeometry == NULL || 
@@ -807,8 +815,8 @@ void Model::Update( float fDelta )
 
 	for( int i=0; i<(int)m_Materials.size(); i++ )
 	{
-		m_Materials[i].diffuse.ani.Update( fDelta );
+		m_Materials[i].diffuse.Update( fDelta );
-		m_Materials[i].alpha.ani.Update( fDelta );
+		m_Materials[i].alpha.Update( fDelta );
 	}
 
 	//
@@ -853,21 +861,38 @@ void Model::Update( float fDelta )
 	}
 }
 
+int Model::GetNumStates() const
+{
+	int iMaxStates = 0;
+	FOREACH_CONST( msMaterial, m_Materials, m )
+		iMaxStates = max( iMaxStates, m->diffuse.GetNumStates() );
+	return iMaxStates;
+}
+
 void Model::SetState( int iNewState )
 {
-	for( int i=0; i<(int)m_Materials.size(); i++ )
+	FOREACH( msMaterial, m_Materials, m )
 	{
-		m_Materials[i].diffuse.ani.SetState( iNewState );
+		m->diffuse.SetState( iNewState );
-		m_Materials[i].alpha.ani.SetState( iNewState );
+		m->alpha.SetState( iNewState );
 	}
 }
 
-int Model::GetNumStates()
+float Model::GetAnimationLengthSeconds() const
 {
-	int iMaxStates = 0;
+	float fSeconds = 0;
-	for( int i=0; i<(int)m_Materials.size(); i++ )
+	FOREACH_CONST( msMaterial, m_Materials, m )
-		iMaxStates = max( iMaxStates, m_Materials[i].diffuse.ani.GetNumStates() );
+		fSeconds = max( fSeconds, m->diffuse.GetAnimationLengthSeconds() );
-	return iMaxStates;
+	return fSeconds;
+}
+
+void Model::SetSecondsIntoAnimation( float fSeconds )
+{
+	FOREACH( msMaterial, m_Materials, m )
+	{
+		m->diffuse.SetSecondsIntoAnimation( fSeconds );
+		m->alpha.SetSecondsIntoAnimation( fSeconds );
+	}
 }
 
 void Model::HandleCommand( const ParsedCommand &command )

stepmania/src/Model.h

@@ -37,10 +37,11 @@ public:
 	void	AdvanceFrame (float dt);
 	void	DrawCelShaded();
 
+	virtual int GetNumStates() const;
 	virtual void SetState( int iNewState );
-	float GetCurFrame();
+	virtual float GetAnimationLengthSeconds() const;
-	void SetFrame( float fNewFrame );
+	virtual void SetSecondsIntoAnimation( float fSeconds );
-	virtual int GetNumStates();
+
 	CString		GetDefaultAnimation() { return m_sDefaultAnimation; };
 	void		SetDefaultAnimation( CString sAnimation, float fPlayRate = 1 );
 	bool		m_bRevertToDefaultAnimation;

stepmania/src/ModelTypes.cpp

@@ -6,11 +6,16 @@
 #include "RageTextureManager.h"
 #include "RageLog.h"
 #include "RageDisplay.h"
+#include "Foreach.h"
 
 AnimatedTexture::AnimatedTexture()
 {
-	iCurState = 0;
+	m_iCurState = 0;
-	fSecsIntoFrame = 0;
+	m_fSecsIntoFrame = 0;
+	m_bSphereMapped = false;
+	m_fTexVelocityX = 0;
+	m_fTexVelocityY = 0;
+	m_BlendMode = BLEND_NORMAL;
 }
 
 AnimatedTexture::~AnimatedTexture()
@@ -22,6 +27,12 @@ void AnimatedTexture::Load( CString sTexOrIniPath )
 {
 	ASSERT( vFrames.empty() );	// don't load more than once
 
+	m_bSphereMapped = sTexOrIniPath.Find("sphere") != -1;
+	if( sTexOrIniPath.Find("add") != -1 )
+		m_BlendMode = BLEND_ADD;
+	else
+		m_BlendMode = BLEND_NORMAL;
+
 	if( GetExtension(sTexOrIniPath).CompareNoCase("ini")==0 )
 	{
 		IniFile ini;
@@ -30,6 +41,10 @@ void AnimatedTexture::Load( CString sTexOrIniPath )
 
 		if( !ini.GetKey("AnimatedTexture") )
 			RageException::Throw( "The animated texture file '%s' doesn't contain a section called 'AnimatedTexture'.", sTexOrIniPath.c_str() );
+		
+		ini.GetValue( "AnimatedTexture", "TexVelocityX", m_fTexVelocityX );
+		ini.GetValue( "AnimatedTexture", "TexVelocityY", m_fTexVelocityY );
+		
 		for( int i=0; i<1000; i++ )
 		{
 			CString sFileKey = ssprintf( "Frame%04d", i );
@@ -64,7 +79,7 @@ void AnimatedTexture::Load( CString sTexOrIniPath )
 		ID.bMipMaps = true;	// use mipmaps in Models
 		AnimatedTextureState state = { 
 			TEXTUREMAN->LoadTexture( ID ),
-			10
+			1
 		};
 		vFrames.push_back( state );
 	}
@@ -75,12 +90,12 @@ void AnimatedTexture::Update( float fDelta )
 {
 	if( vFrames.empty() )
 		return;
-	ASSERT( iCurState < (int)vFrames.size() );
+	ASSERT( m_iCurState < (int)vFrames.size() );
-	fSecsIntoFrame += fDelta;
+	m_fSecsIntoFrame += fDelta;
-	if( fSecsIntoFrame > vFrames[iCurState].fDelaySecs )
+	if( m_fSecsIntoFrame > vFrames[m_iCurState].fDelaySecs )
 	{
-		fSecsIntoFrame -= vFrames[iCurState].fDelaySecs;
+		m_fSecsIntoFrame -= vFrames[m_iCurState].fDelaySecs;
-		iCurState = (iCurState+1) % vFrames.size();
+		m_iCurState = (m_iCurState+1) % vFrames.size();
 	}
 }
 
@@ -88,19 +103,60 @@ RageTexture* AnimatedTexture::GetCurrentTexture()
 {
 	if( vFrames.empty() )
 		return NULL;
-	ASSERT( iCurState < (int)vFrames.size() );
+	ASSERT( m_iCurState < (int)vFrames.size() );
-	return vFrames[iCurState].pTexture;
+	return vFrames[m_iCurState].pTexture;
+}
+
+int AnimatedTexture::GetNumStates() const
+{
+	return vFrames.size();
 }
 
 void AnimatedTexture::SetState( int iState )
 {
 	CLAMP( iState, 0, GetNumStates()-1 );
-	iCurState = iState;
+	m_iCurState = iState;
 }
 
-int AnimatedTexture::GetNumStates()
+float AnimatedTexture::GetAnimationLengthSeconds() const
 {
-	return vFrames.size();
+	float fTotalSeconds = 0;
+	FOREACH_CONST( AnimatedTextureState, vFrames, ats )
+		fTotalSeconds += ats->fDelaySecs;
+	return fTotalSeconds;
+}
+
+void AnimatedTexture::SetSecondsIntoAnimation( float fSeconds )
+{
+	fSeconds = fmodf( fSeconds, GetAnimationLengthSeconds() );
+
+	m_iCurState = 0;
+	for( unsigned i=0; i<vFrames.size(); i++ )
+	{
+		AnimatedTextureState& ats = vFrames[i];
+		if( fSeconds > ats.fDelaySecs )
+		{
+			fSeconds -= ats.fDelaySecs;
+			m_iCurState = i+1;
+		}
+	}
+	m_fSecsIntoFrame = fSeconds;	// remainder
+}
+
+float AnimatedTexture::GetSecondsIntoAnimation() const
+{
+	float fSeconds = 0;
+
+	for( unsigned i=0; i<vFrames.size(); i++ )
+	{
+		const AnimatedTextureState& ats = vFrames[i];
+		if( i >= m_iCurState )
+			break;
+
+		fSeconds += ats.fDelaySecs;
+	}
+	fSeconds += m_fSecsIntoFrame;
+	return fSeconds;
 }
 
 void AnimatedTexture::Unload()
@@ -108,11 +164,10 @@ void AnimatedTexture::Unload()
 	for(unsigned i = 0; i < vFrames.size(); ++i)
 		TEXTUREMAN->UnloadTexture(vFrames[i].pTexture);
 	vFrames.clear();
-	iCurState = 0;
+	m_iCurState = 0;
-	fSecsIntoFrame = 0;
+	m_fSecsIntoFrame = 0;
 }
 
-
 msMesh::msMesh()
 {
 	ZERO( szName );

stepmania/src/ModelTypes.h

@@ -71,8 +71,9 @@ typedef struct msMesh
 class RageTexture;
 
 // merge this into Sprite?
-struct AnimatedTexture
+class AnimatedTexture
 {
+public:
 	AnimatedTexture();
 	~AnimatedTexture();
 	
@@ -82,11 +83,21 @@ struct AnimatedTexture
 	
 	RageTexture* GetCurrentTexture();
 	
-	void SetState( int iState );
+	int GetNumStates() const;
-	int GetNumStates();
+	void SetState( int iNewState );
+	float GetAnimationLengthSeconds() const;
+	void SetSecondsIntoAnimation( float fSeconds );
+	float GetSecondsIntoAnimation() const;
 
-	int iCurState;
+	bool		m_bSphereMapped;
-	float fSecsIntoFrame;
+	float		m_fTexVelocityX;
+	float		m_fTexVelocityY;
+	BlendMode	m_BlendMode;
+
+private:
+
+	int m_iCurState;
+	float m_fSecsIntoFrame;
 	struct AnimatedTextureState
 	{
 		RageTexture* pTexture;
@@ -109,27 +120,8 @@ typedef struct msMaterial
     char        szAlphaTexture[MS_MAX_PATH];	// not used in SM.  Use alpha in diffuse texture instead
     int         nName;	// not used in SM.  What is this for anyway?
 
-	struct Texture
+	AnimatedTexture diffuse;
-	{
+	AnimatedTexture alpha;
-		Texture()
-		{
-			bSphereMapped = false;
-			blendMode = BLEND_NORMAL;
-		}
-
-		void Load( CString sFile )
-		{
-			ani.Load( sFile );
-			bSphereMapped = sFile.Find("sphere") != -1;
-			if( sFile.Find("add") != -1 )
-				blendMode = BLEND_ADD;
-			else
-				blendMode = BLEND_NORMAL;
-		};
-		AnimatedTexture ani;
-		bool		bSphereMapped;	// true of "sphere" appears in the material name
-		BlendMode	blendMode;
-	} diffuse, alpha;
 } msMaterial;
 
 /* msPositionKey */

stepmania/src/NoteDisplay.cpp

@@ -251,31 +251,25 @@ void NoteDisplay::Update( float fDeltaTime )
 
 void NoteDisplay::SetActiveFrame( float fNoteBeat, Actor &actorToSet, float fAnimationLengthInBeats, bool bVivid, bool bNoteColor )
 {
-	const int iNumFrames = actorToSet.GetNumStates();
-	if( iNumFrames == 0 )	// Model with no textures
-		return;
 
 	float fSongBeat = GAMESTATE->m_fSongBeat;
-	float fPrecentIntoAnimation = fmodf(fSongBeat,fAnimationLengthInBeats) / fAnimationLengthInBeats;
+	float fPercentIntoAnimation = fmodf(fSongBeat,fAnimationLengthInBeats) / fAnimationLengthInBeats;
 	float fNoteBeatFraction = fmodf( fNoteBeat, 1.0f );
 
-	int iFrameNo = (int)(fPrecentIntoAnimation*iNumFrames);
 	if( bVivid )
 	{
 		// changed to deal with the minor complaint that the color cycling is
 		// one tick off in general
 		const float fFraction = fNoteBeatFraction - 0.25f/fAnimationLengthInBeats;
 		const float fInterval = 1.f / fAnimationLengthInBeats;
-		iFrameNo += int( froundf(fFraction,fInterval)*iNumFrames );
+		fPercentIntoAnimation += froundf(fFraction,fInterval);
 	}
 
 	// just in case somehow we're majorly negative with the subtraction
-	iFrameNo += (iNumFrames * 2);
+	wrap( fPercentIntoAnimation, 1.f );
-	iFrameNo %= iNumFrames;
 
-	ASSERT( iFrameNo>=0 && iFrameNo<iNumFrames );
+	float fLengthSeconds = actorToSet.GetAnimationLengthSeconds();
-
+	actorToSet.SetSecondsIntoAnimation( fPercentIntoAnimation*fLengthSeconds );
-	actorToSet.SetState( iFrameNo );
 }
 
 Actor * NoteDisplay::GetTapNoteActor( float fNoteBeat )

stepmania/src/RageDisplay.cpp

@@ -350,6 +350,7 @@ public:
 MatrixStack	g_ProjectionStack;
 MatrixStack	g_ViewStack;
 MatrixStack	g_WorldStack;
+MatrixStack	g_TextureStack;
 
 const RageMatrix* RageDisplay::GetProjectionTop()
 {
@@ -366,6 +367,11 @@ const RageMatrix* RageDisplay::GetWorldTop()
 	return g_WorldStack.GetTop();
 }
 
+const RageMatrix* RageDisplay::GetTextureTop()
+{
+	return g_TextureStack.GetTop();
+}
+
 void RageDisplay::PushMatrix() 
 { 
 	g_WorldStack.Push();
@@ -421,6 +427,23 @@ void RageDisplay::LoadIdentity()
 	g_WorldStack.LoadIdentity();
 }
 
+
+void RageDisplay::TexturePushMatrix() 
+{ 
+	g_TextureStack.Push();
+}
+
+void RageDisplay::TexturePopMatrix() 
+{ 
+	g_TextureStack.Pop();
+}
+
+void RageDisplay::TextureTranslate( float x, float y, float z )
+{
+	g_TextureStack.TranslateLocal(x, y, z);
+}
+
+
 void RageDisplay::LoadMenuPerspective( float fovDegrees, float fVanishPointX, float fVanishPointY )
 {
 	/* fovDegrees == 0 looks the same as an ortho projection.  However,

stepmania/src/RageDisplay.h

@@ -293,6 +293,11 @@ public:
 	void PreMultMatrix( const RageMatrix &f );
 	void LoadIdentity();
 
+	/* Texture matrix functions */
+	void TexturePushMatrix();
+	void TexturePopMatrix();
+	void TextureTranslate( float x, float y, float z );
+
 	/* Projection and View matrix stack functions. */
 	void CameraPushMatrix();
 	void CameraPopMatrix();
@@ -322,6 +327,7 @@ protected:
 	const RageMatrix* GetProjectionTop();
 	const RageMatrix* GetViewTop();
 	const RageMatrix* GetWorldTop();
+	const RageMatrix* GetTextureTop();
 };
 
 

stepmania/src/RageDisplay_D3D.cpp

@@ -737,15 +737,17 @@ RageSurface* RageDisplay_D3D::CreateScreenshot()
 
 RageDisplay::VideoModeParams RageDisplay_D3D::GetVideoModeParams() const { return g_CurrentParams; }
 
-#define SEND_CURRENT_MATRICES \
+void RageDisplay_D3D::SendCurrentMatrices()
-	g_pd3dDevice->SetTransform( D3DTS_PROJECTION, (D3DMATRIX*)GetProjectionTop() ); \
+{
-	g_pd3dDevice->SetTransform( D3DTS_VIEW, (D3DMATRIX*)GetViewTop() ); \
+	g_pd3dDevice->SetTransform( D3DTS_PROJECTION, (D3DMATRIX*)GetProjectionTop() );
-	RageMatrix m; \
+	g_pd3dDevice->SetTransform( D3DTS_VIEW, (D3DMATRIX*)GetViewTop() );
-	/* Convert to OpenGL-style "pixel-centered" coords */ \
+	RageMatrix m;
-	RageMatrixTranslation( &m, -0.5f, -0.5f, 0 ); \
+	/* Convert to OpenGL-style "pixel-centered" coords */
-	RageMatrixMultiply( &m, &m, GetWorldTop() ); \
+	RageMatrixTranslation( &m, -0.5f, -0.5f, 0 );
+	RageMatrixMultiply( &m, &m, GetWorldTop() );
 	g_pd3dDevice->SetTransform( D3DTS_WORLD, (D3DMATRIX*)&m );
-
+	g_pd3dDevice->SetTransform( D3DTS_TEXTURE0, (D3DMATRIX*)GetTextureTop() );
+}
 
 class RageCompiledGeometrySWD3D : public RageCompiledGeometry
 {
@@ -831,7 +833,7 @@ void RageDisplay_D3D::DrawQuadsInternal( const RageSpriteVertex v[], int iNumVer
 	}
 
 	g_pd3dDevice->SetVertexShader( D3DFVF_RageSpriteVertex );
-	SEND_CURRENT_MATRICES;
+	SendCurrentMatrices();
 	g_pd3dDevice->DrawIndexedPrimitiveUP(
 		D3DPT_TRIANGLELIST, // PrimitiveType
 		0, // MinIndex
@@ -867,7 +869,7 @@ void RageDisplay_D3D::DrawQuadStripInternal( const RageSpriteVertex v[], int iNu
 	}
 
 	g_pd3dDevice->SetVertexShader( D3DFVF_RageSpriteVertex );
-	SEND_CURRENT_MATRICES;
+	SendCurrentMatrices();
 	g_pd3dDevice->DrawIndexedPrimitiveUP(
 		D3DPT_TRIANGLELIST, // PrimitiveType
 		0, // MinIndex
@@ -883,7 +885,7 @@ void RageDisplay_D3D::DrawQuadStripInternal( const RageSpriteVertex v[], int iNu
 void RageDisplay_D3D::DrawFanInternal( const RageSpriteVertex v[], int iNumVerts )
 {
 	g_pd3dDevice->SetVertexShader( D3DFVF_RageSpriteVertex );
-	SEND_CURRENT_MATRICES;
+	SendCurrentMatrices();
 	g_pd3dDevice->DrawPrimitiveUP(
 		D3DPT_TRIANGLEFAN, // PrimitiveType
 		iNumVerts-2, // PrimitiveCount,
@@ -895,7 +897,7 @@ void RageDisplay_D3D::DrawFanInternal( const RageSpriteVertex v[], int iNumVerts
 void RageDisplay_D3D::DrawStripInternal( const RageSpriteVertex v[], int iNumVerts )
 {
 	g_pd3dDevice->SetVertexShader( D3DFVF_RageSpriteVertex );
-	SEND_CURRENT_MATRICES;
+	SendCurrentMatrices();
 	g_pd3dDevice->DrawPrimitiveUP(
 		D3DPT_TRIANGLESTRIP, // PrimitiveType
 		iNumVerts-2, // PrimitiveCount,
@@ -907,7 +909,7 @@ void RageDisplay_D3D::DrawStripInternal( const RageSpriteVertex v[], int iNumVer
 void RageDisplay_D3D::DrawTrianglesInternal( const RageSpriteVertex v[], int iNumVerts )
 {
 	g_pd3dDevice->SetVertexShader( D3DFVF_RageSpriteVertex );
-	SEND_CURRENT_MATRICES;
+	SendCurrentMatrices();
 	g_pd3dDevice->DrawPrimitiveUP(
 		D3DPT_TRIANGLELIST, // PrimitiveType
 		iNumVerts/3, // PrimitiveCount,
@@ -918,7 +920,7 @@ void RageDisplay_D3D::DrawTrianglesInternal( const RageSpriteVertex v[], int iNu
 
 void RageDisplay_D3D::DrawCompiledGeometryInternal( const RageCompiledGeometry *p, int iMeshIndex )
 {
-	SEND_CURRENT_MATRICES;
+	SendCurrentMatrices();
 
 	p->Draw( iMeshIndex );
 }
@@ -931,7 +933,7 @@ void RageDisplay_D3D::DrawLineStrip( const RageSpriteVertex v[], int iNumVerts,
 	ASSERT( iNumVerts >= 2 );
 	g_pd3dDevice->SetRenderState( D3DRS_POINTSIZE, *((DWORD*)&LineWidth) );	// funky cast.  See D3DRENDERSTATETYPE doc
 	g_pd3dDevice->SetVertexShader( D3DFVF_RageSpriteVertex );
-	SEND_CURRENT_MATRICES;
+	SendCurrentMatrices();
 	g_pd3dDevice->DrawPrimitiveUP(
 		D3DPT_LINESTRIP, // PrimitiveType
 		iNumVerts-1, // PrimitiveCount,

stepmania/src/RageDisplay_D3D.h

@@ -89,6 +89,8 @@ protected:
 	RageSurface* CreateScreenshot();
 	void SetViewport(int shift_left, int shift_down);
 	RageMatrix GetOrthoMatrix( float l, float r, float b, float t, float zn, float zf ); 
+
+	void SendCurrentMatrices();
 };
 
 #endif

stepmania/src/RageDisplay_OGL.cpp

@@ -899,6 +899,8 @@ void RageDisplay_OGL::SendCurrentMatrices()
 	RageMatrixMultiply( &modelView, &modelView, GetWorldTop() );
 	glMatrixMode( GL_MODELVIEW );
 	glLoadMatrixf( (const float*)&modelView );
+	glMatrixMode( GL_TEXTURE  );
+	glLoadMatrixf( (const float*)GetTextureTop() );
 }
 
 class RageCompiledGeometrySWOGL : public RageCompiledGeometry

stepmania/src/RageDisplay_OGL.h

@@ -86,6 +86,7 @@ protected:
 	RageMatrix GetOrthoMatrix( float l, float r, float b, float t, float zn, float zf ); 
 	PixelFormat GetImgPixelFormat( RageSurface* &img, bool &FreeImg, int width, int height );
 	bool SupportsSurfaceFormat( PixelFormat pixfmt );
+	
 	void SendCurrentMatrices();
 };
 

stepmania/src/Sprite.cpp

@@ -11,6 +11,7 @@
 #include "RageTexture.h"
 #include "ActorUtil.h"
 #include "arch/Dialog/Dialog.h"
+#include "Foreach.h"
 
 Sprite::Sprite()
 {
@@ -588,6 +589,11 @@ void Sprite::DrawPrimitives()
 }
 
 
+int Sprite::GetNumStates() const
+{
+	return m_States.size(); 
+}
+
 void Sprite::SetState( int iNewState )
 {
 	// This assert will likely trigger if the "missing" theme element graphic 
@@ -610,6 +616,14 @@ void Sprite::SetState( int iNewState )
 	m_fSecsIntoState = 0.0; 
 }
 
+float Sprite::GetAnimationLengthSeconds() const
+{
+	float fTotal = 0;
+	FOREACH_CONST( State, m_States, s )
+		fTotal += s->fDelay;
+	return fTotal;
+}
+
 void Sprite::SetSecondsIntoAnimation( float fSeconds )
 {
 	SetState( 0 );	// rewind to the first state

stepmania/src/Sprite.h

@@ -34,10 +34,12 @@ public:
 	RageTexture* GetTexture() { return m_pTexture; };
 
 	virtual void EnableAnimation( bool bEnable );
+	
+	virtual int GetNumStates() const;
 	virtual void SetState( int iNewState );
+	virtual float GetAnimationLengthSeconds() const;
 	virtual void SetSecondsIntoAnimation( float fSeconds );
 	
-	virtual int GetNumStates()		{ return m_States.size(); };
 	CString	GetTexturePath() const;
 
 	void SetCustomTextureRect( const RectF &new_texcoord_frect );