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vgui2/vgui_perftest/amalg_texture.h

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+//====== Copyright <20> 1996-2005, Valve Corporation, All rights reserved. =======
+//
+// Purpose: 
+//
+//=============================================================================
+
+#ifndef AMALGAMATEDTEXTURE_H
+#define AMALGAMATEDTEXTURE_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "amalg_texture_vars.h"
+#include "bitmap/floatbitmap.h"
+#include "tier1/utlmap.h"
+#include "tier1/utlstringmap.h"
+#include "tier2/tier2.h"
+
+
+struct Sequence;
+struct SequenceFrame
+{
+	SequenceFrame() : m_mapSequences( DefLessFunc( Sequence * ) ) {}
+
+	FloatBitMap_t *m_pImage;
+	int m_XCoord, m_YCoord;									// where it ended up packed
+	CUtlMap< Sequence *, int > m_mapSequences;
+};
+
+struct SequenceEntry
+{
+	SequenceFrame *m_pSeqFrame[MAX_IMAGES_PER_FRAME];
+	float m_fDisplayTime;
+};
+
+struct Sequence
+{
+	int m_nSequenceNumber;
+	bool m_Clamp;											// as opposed to loop
+	int m_eMode;
+	CUtlVector<SequenceEntry> m_Frames;
+
+	Sequence( void )
+	{
+		m_Clamp = true;
+		m_eMode = SQM_RGBA;
+	}
+
+};
+
+
+// The texture itself.
+class CAmalgamatedTexture
+{
+public:
+	CAmalgamatedTexture();
+	void Init( const char *pShtFileName = NULL );
+	void WriteFile();
+
+	void DetermineBestPacking();
+	bool PackImages( char const *pFilename, int nWidth );
+
+	int GetWidth() { return m_nWidth; }
+
+	void SetCurrentSequenceClamp( bool bState );
+	void SetPackingMode( int mode );
+
+	void CreateNewSequence( int sequenceNumber, int mode );
+	void ValidateSequenceType( int eMode, char *word );
+	void SetSequenceType( int eMode );
+	bool CurrentSequenceExists();
+
+	void CreateFrame( float ftime, CUtlVector<char *> &frameNames );	
+	void LoadFrame( SequenceEntry &newSequenceEntry, char *fnamebuf, int frameNumber );
+
+private:
+
+	int GetPackingMode();	
+	int GetSequenceType();
+	
+	void ValidateFramePacking( SequenceFrame *pBitmap, char *fileName );
+	
+	bool PackImages_Flat( char const *pFilename, int nWidth );
+	bool PackImages_Rgb_A( char const *pFilename, int nWidth );
+
+
+	float UCoord( int u )
+	{
+		float uc = u + 0.5;
+		return uc / (float) m_nWidth;
+	}
+	float VCoord( int v )
+	{
+		float vc = v + 0.5;
+		return vc / (float) m_nHeight;
+	}
+
+	const char *m_pShtFile;
+
+	CUtlStringMap<SequenceFrame *> m_ImageList;
+	int m_ePackingMode;
+
+	CUtlVector<Sequence *> m_Sequences;
+	Sequence *m_pCurSequence;
+
+	int m_nWidth;
+	int m_nHeight;
+
+};
+
+
+#endif // AMALGAMATEDTEXTURE_H