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/*
* $RCSfile$
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision$
* $Date$
* $State$
*/
#ifndef _Java3D_CgWrapper_h_
#define _Java3D_CgWrapper_h_
#include "gldefs.h"
#ifdef COMPILE_CG_SHADERS
#include <Cg/cgGL.h>
#endif /* COMPILE_CG_SHADERS */
/* Forward references for structure typedefs */
typedef struct CgWrapperInfoRec CgWrapperInfo;
typedef struct CgShaderInfoRec CgShaderInfo;
typedef struct CgShaderProgramInfoRec CgShaderProgramInfo;
typedef struct CgParameterInfoRec CgParameterInfo;
/* Typedef for function pointer to entry point in CgWrapper library */
typedef void (*PFNJ3DLOADCGFUNCTIONPOINTERS)(CgWrapperInfo *);
#ifdef COMPILE_CG_SHADERS
typedef CGcontext (*PFNCGCREATECONTEXT)(void);
typedef CGbool (*PFNCGGLISPROFILESUPPORTED)(CGprofile);
typedef CGerror (*PFNCGGETERROR)(void);
typedef const char * (*PFNCGGETERRORSTRING)(CGerror);
typedef const char * (*PFNCGGETLASTLISTING)(CGcontext);
typedef CGprogram (*PFNCGCREATEPROGRAM)(CGcontext, CGenum, const char *,
CGprofile, const char *, const char **);
typedef void (*PFNCGDESTROYPROGRAM)(CGprogram program);
typedef void (*PFNCGGLLOADPROGRAM)(CGprogram);
typedef void (*PFNCGGLBINDPROGRAM)(CGprogram);
typedef void (*PFNCGGLUNBINDPROGRAM)(CGprofile);
typedef void (*PFNCGGLENABLEPROFILE)(CGprofile);
typedef void (*PFNCGGLDISABLEPROFILE)(CGprofile);
typedef CGparameter (*PFNCGGETNAMEDPARAMETER)(CGprogram, const char *);
typedef CGtype (*PFNCGGETPARAMETERTYPE)(CGparameter);
typedef int (*PFNCGGETARRAYDIMENSION)(CGparameter);
typedef CGtype (*PFNCGGETARRAYTYPE)(CGparameter);
typedef int (*PFNCGGETARRAYSIZE)(CGparameter, int);
typedef CGparameter (*PFNCGGETARRAYPARAMETER)(CGparameter, int);
typedef void (*PFNCGSETPARAMETER1F)(CGparameter, float);
#endif /* COMPILE_CG_SHADERS */
/*
* Global struct that contains the reference to the CG wrapper library
* and the function pointers to each wrapper function. This is a
* singleton (only one instance exists), and is initialized by a
* static MasterControl method. For performance, we will cache the
* pointer to this global struct in each context.
*/
struct CgWrapperInfoRec {
/*
* Flag indicating whether the library and all function pointers
* were successfully loaded.
*/
jboolean loaded;
/*
* Pointer to library, returned by dlopen (UNIX) or LoadLibrary (Windows)
*/
void *cgLibraryHandle;
/* Function pointer to entry point in CgWrapper library */
PFNJ3DLOADCGFUNCTIONPOINTERS j3dLoadCgFunctionPointers;
/* Function pointers for warapper functions */
#ifdef COMPILE_CG_SHADERS
/* CG function pointers */
PFNCGCREATECONTEXT cgCreateContext;
PFNCGGLISPROFILESUPPORTED cgGLIsProfileSupported;
PFNCGGETERROR cgGetError;
PFNCGGETERRORSTRING cgGetErrorString;
PFNCGGETLASTLISTING cgGetLastListing;
PFNCGCREATEPROGRAM cgCreateProgram;
PFNCGDESTROYPROGRAM cgDestroyProgram;
PFNCGGLLOADPROGRAM cgGLLoadProgram;
PFNCGGLBINDPROGRAM cgGLBindProgram;
PFNCGGLUNBINDPROGRAM cgGLUnbindProgram;
PFNCGGLENABLEPROFILE cgGLEnableProfile;
PFNCGGLDISABLEPROFILE cgGLDisableProfile;
PFNCGGETNAMEDPARAMETER cgGetNamedParameter;
PFNCGGETPARAMETERTYPE cgGetParameterType;
PFNCGGETARRAYDIMENSION cgGetArrayDimension;
PFNCGGETARRAYTYPE cgGetArrayType;
PFNCGGETARRAYSIZE cgGetArraySize;
PFNCGGETARRAYPARAMETER cgGetArrayParameter;
PFNCGSETPARAMETER1F cgSetParameter1f;
#endif /* COMPILE_CG_SHADERS */
};
/* Structure used to hold CG context information; stored in ctxInfo */
struct CgCtxInfoRec {
CgWrapperInfo *cgWrapperInfo; /* Pointer to static wrapper info */
#ifdef COMPILE_CG_SHADERS
CGcontext cgCtx;
CGprofile vProfile;
CGprofile fProfile;
#endif /* COMPILE_CG_SHADERS */
};
/* Structure used to hold CG shader information; passed back to Java as cgShaderId */
struct CgShaderInfoRec {
#ifdef COMPILE_CG_SHADERS
CGprogram cgShader;
jint shaderType;
CGprofile shaderProfile;
#else /* COMPILE_CG_SHADERS */
int dummy;
#endif /* COMPILE_CG_SHADERS */
};
/*
* Structure used to hold CG shader program information; passed back
* to Java as cgShaderProgramId
*/
struct CgShaderProgramInfoRec {
#ifdef COMPILE_CG_SHADERS
/*
* Vertex and fragment shader -- may be null to indicate that one
* or the other is not present
*/
CgShaderInfo *vShader; /* Vertex shader */
CgShaderInfo *fShader; /* Fragment shader */
/* Array of parameters for (varying) vertex attributes */
int numVtxAttrs;
CGparameter *vtxAttrs;
#else /* COMPILE_CG_SHADERS */
int dummy;
#endif /* COMPILE_CG_SHADERS */
};
/*
* Structure used to hold CG shader parameter information for uniform
* shader attributes; passed back to Java in the locArr array
*/
struct CgParameterInfoRec {
#ifdef COMPILE_CG_SHADERS
CGparameter vParam; /* Parameter handle for vertex shader */
CGparameter fParam; /* Parameter handle for fragment shader */
#else /* COMPILE_CG_SHADERS */
int dummy;
#endif /* COMPILE_CG_SHADERS */
};
#endif /* _Java3D_CgWrapper_h_ */
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