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utils/hlmv/studio_flex.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+#include <string.h>
+#include <assert.h>
+
+#include "ViewerSettings.h"
+#include "StudioModel.h"
+#include "bitmap/TGALoader.h"
+#include "materialsystem/imaterial.h"
+#include "materialsystem/imaterialvar.h"
+#include "materialsystem/itexture.h"
+#include "matsyswin.h"
+#include "istudiorender.h"
+
+#include "studio_render.h"
+
+Vector	g_viewtarget( 0, 0, 0 );
+float g_flexdescweight[MAXSTUDIOFLEXDESC];
+float g_flexdescweight2[MAXSTUDIOFLEXDESC];
+Vector vright( 1, 0, 0 );
+Vector vup( 0, 1, 0 );
+Vector r_origin( 0, 0, 0 );
+
+
+// hack!  Should probably use the gamma stuff in mathlib since we already linking it.
+int LocalLinearToTexture( float v )
+{
+	return pow( v, 1.0f / 2.2f ) * 255;
+}
+
+// hack!  Should probably use the gamma stuff in mathlib since we already linking it.
+float LocalTextureToLinear( int c )
+{
+	return pow( c / 255.0, 2.2 );
+}
+
+
+
+#define sign( a ) (((a) < 0) ? -1 : (((a) > 0) ? 1 : 0 ))
+
+
+void StudioModel::RunFlexRules( )
+{
+	StudioModel *pSrcModel = g_pStudioModel;
+
+	// only the root model has control over flex rules
+	CStudioHdr *pSrcStudioHdr = pSrcModel->GetStudioHdr();
+	CStudioHdr *pDstStudioHdr = GetStudioHdr();
+
+	if ( !pSrcStudioHdr )
+	{
+		pSrcModel = this;
+		pSrcStudioHdr = GetStudioHdr();
+	}
+	
+	float src[MAXSTUDIOFLEXCTRL*4];
+
+	for (LocalFlexController_t i = LocalFlexController_t(0); i < pSrcStudioHdr->numflexcontrollers(); i++)
+	{
+		mstudioflexcontroller_t *pflex = pSrcStudioHdr->pFlexcontroller( i );
+		int j = pSrcStudioHdr->pFlexcontroller( i )->localToGlobal;
+		// remap m_flexweights to full dynamic range, global flexcontroller indexes
+		if (j >= 0 && j < MAXSTUDIOFLEXCTRL*4)
+		{
+			src[j] = pSrcModel->m_flexweight[i] * (pflex->max - pflex->min) + pflex->min; 
+		}
+	}
+	
+	pDstStudioHdr->RunFlexRules( src, g_flexdescweight );
+}
+