/*************************************************************
* *
* file : NV_register_combiners.h *
* author: Jens Schneider *
* date : 12.Mar.2001-04.Jul.2001 *
* e-mail: jens@glHint.de *
* *
* version 2.0� *
* *
*************************************************************/
#ifndef __NV_register_combiners_H_
#define __NV_register_combiners_H_
/*
* GLOBAL SWITCHES - enable/disable advanced features of this header
*
*/
#define NV_REGISTER_COMBINERS_INITIALIZE 1 // enable generic init-routines
#ifndef _WIN32
#define GL_GLEXT_PROTOTYPES 1
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__)
#define WIN32_LEAN_AND_MEAN 1
#include <windows.h>
#endif
#ifndef APIENTRY
#define APIENTRY
#endif
// Header file version number, required by OpenGL ABI for Linux
//#define GL_GLEXT_VERSION 7
/*
* NEW TOKENS TO OPENGL 1.2.1
*
*/
#ifndef GL_NV_register_combiners
#define GL_REGISTER_COMBINERS_NV 0x8522
#define GL_COMBINER0_NV 0x8550
#define GL_COMBINER1_NV 0x8551
#define GL_COMBINER2_NV 0x8552
#define GL_COMBINER3_NV 0x8553
#define GL_COMBINER4_NV 0x8554
#define GL_COMBINER5_NV 0x8555
#define GL_COMBINER6_NV 0x8556
#define GL_COMBINER7_NV 0x8557
#define GL_VARIABLE_A_NV 0x8523
#define GL_VARIABLE_B_NV 0x8524
#define GL_VARIABLE_C_NV 0x8525
#define GL_VARIABLE_D_NV 0x8526
#define GL_VARIABLE_E_NV 0x8527
#define GL_VARIABLE_F_NV 0x8528
#define GL_VARIABLE_G_NV 0x8529
#define GL_CONSTANT_COLOR0_NV 0x852A
#define GL_CONSTANT_COLOR1_NV 0x852B
#define GL_PRIMARY_COLOR_NV 0x852C
#define GL_SECONDARY_COLOR_NV 0x852D
#define GL_SPARE0_NV 0x852E
#define GL_SPARE1_NV 0x852F
#define GL_UNSIGNED_IDENTITY_NV 0x8536
#define GL_UNSIGNED_INVERT_NV 0x8537
#define GL_EXPAND_NORMAL_NV 0x8538
#define GL_EXPAND_NEGATE_NV 0x8539
#define GL_HALF_BIAS_NORMAL_NV 0x853A
#define GL_HALF_BIAS_NEGATE_NV 0x853B
#define GL_SIGNED_IDENTITY_NV 0x853C
#define GL_SIGNED_NEGATE_NV 0x853D
#define GL_E_TIMES_F_NV 0x8531
#define GL_SPARE0_PLUS_SECONDARY_COLOR_NV 0x8532
#define GL_SCALE_BY_TWO_NV 0x853E
#define GL_SCALE_BY_FOUR_NV 0x853F
#define GL_SCALE_BY_ONE_HALF_NV 0x8540
#define GL_BIAS_BY_NEGATIVE_ONE_HALF_NV 0x8541
#define GL_DISCARD_NV 0x8530
#define GL_COMBINER_INPUT_NV 0x8542
#define GL_COMBINER_MAPPING_NV 0x8543
#define GL_COMBINER_COMPONENT_USAGE_NV 0x8544
#define GL_COMBINER_AB_DOT_PRODUCT_NV 0x8545
#define GL_COMBINER_CD_DOT_PRODUCT_NV 0x8546
#define GL_COMBINER_MUX_SUM_NV 0x8547
#define GL_COMBINER_SCALE_NV 0x8548
#define GL_COMBINER_BIAS_NV 0x8549
#define GL_COMBINER_AB_OUTPUT_NV 0x854A
#define GL_COMBINER_CD_OUTPUT_NV 0x854B
#define GL_COMBINER_SUM_OUTPUT_NV 0x854C
#define GL_NUM_GENERAL_COMBINERS_NV 0x854E
#define GL_COLOR_SUM_CLAMP_NV 0x854F
#define GL_MAX_GENERAL_COMBINERS_NV 0x854D
#define GL_NV_register_combiners 1
#endif
#ifndef _WIN32
#ifdef GL_GLEXT_PROTOTYPES
extern void APIENTRY glCombinerParameterfvNV(GLenum, const GLfloat *);
extern void APIENTRY glCombinerParameterivNV(GLenum, const GLint *);
extern void APIENTRY glCombinerParameterfNV (GLenum, GLfloat);
extern void APIENTRY glCombinerParameteriNV (GLenum, GLint);
extern void APIENTRY glCombinerInputNV (GLenum, GLenum, GLenum, GLenum, GLenum, GLenum);
extern void APIENTRY glCombinerOutputNV (GLenum, GLenum, GLenum, GLenum, GLenum, GLenum, GLenum, GLboolean, GLboolean, GLboolean);
extern void APIENTRY glFinalCombinerInputNV (GLenum, GLenum, GLenum, GLenum);
extern void APIENTRY glGetCombinerInputParameterfvNV (GLenum, GLenum, GLenum, GLenum, GLfloat *);
extern void APIENTRY glGetCombinerInputParameterivNV (GLenum, GLenum, GLenum, GLenum, GLint *);
extern void APIENTRY glGetCombinerOutputParameterfvNV(GLenum, GLenum, GLenum, GLfloat *);
extern void APIENTRY glGetCombinerOutputParameterivNV(GLenum, GLenum, GLenum, GLint *);
extern void APIENTRY glGetFinalCombinerInputParameterfvNV(GLenum, GLenum, GLfloat *);
extern void APIENTRY glGetFinalCombinerInputParameterivNV(GLenum, GLenum, GLint *);
#endif // GL_GLEXT_PROTOTYPES
#else // _WIN32
typedef void (APIENTRY * PFNGLCOMBINERPARAMETERFVNVPROC) (GLenum pname, const GLfloat *params);
typedef void (APIENTRY * PFNGLCOMBINERPARAMETERIVNVPROC) (GLenum pname, const GLint *params);
typedef void (APIENTRY * PFNGLCOMBINERPARAMETERFNVPROC) (GLenum pname, GLfloat param);
typedef void (APIENTRY * PFNGLCOMBINERPARAMETERINVPROC) (GLenum pname, GLint param);
typedef void (APIENTRY * PFNGLCOMBINERINPUTNVPROC) (GLenum stage, GLenum portion, GLenum variable, GLenum input, GLenum mapping, GLenum componentUsage);
typedef void (APIENTRY * PFNGLCOMBINEROUTPUTNVPROC) (GLenum stage, GLenum portion, GLenum abOutput, GLenum cdOutput, GLenum sumOutput, GLenum scale, GLenum bias, GLboolean abDotProduct, GLboolean cdDotProduct, GLboolean muxSum);
typedef void (APIENTRY * PFNGLFINALCOMBINERINPUTNVPROC) (GLenum variable, GLenum input, GLenum mapping, GLenum componentUsage);
typedef void (APIENTRY * PFNGLGETCOMBINERINPUTPARAMETERFVNVPROC) (GLenum stage, GLenum portion, GLenum variable, GLenum pname, GLfloat *params);
typedef void (APIENTRY * PFNGLGETCOMBINERINPUTPARAMETERIVNVPROC) (GLenum stage, GLenum portion, GLenum variable, GLenum pname, GLint *params);
typedef void (APIENTRY * PFNGLGETCOMBINEROUTPUTPARAMETERFVNVPROC)(GLenum stage, GLenum portion, GLenum pname, GLfloat *params);
typedef void (APIENTRY * PFNGLGETCOMBINEROUTPUTPARAMETERIVNVPROC)(GLenum stage, GLenum portion, GLenum pname, GLint *params);
typedef void (APIENTRY * PFNGLGETFINALCOMBINERINPUTPARAMETERFVNVPROC)(GLenum variable, GLenum pname, GLfloat *params);
typedef void (APIENTRY * PFNGLGETFINALCOMBINERINPUTPARAMETERIVNVPROC)(GLenum variable, GLenum pname, GLint *params);
#endif // not _WIN32
#ifdef NV_REGISTER_COMBINERS_INITIALIZE
#include<string.h> // string manipulation for runtime-check
#ifdef _WIN32
PFNGLCOMBINERPARAMETERFVNVPROC glCombinerParameterfvNV = NULL;
PFNGLCOMBINERPARAMETERIVNVPROC glCombinerParameterivNV = NULL;
PFNGLCOMBINERPARAMETERFNVPROC glCombinerParameterfNV = NULL;
PFNGLCOMBINERPARAMETERINVPROC glCombinerParameteriNV = NULL;
PFNGLCOMBINERINPUTNVPROC glCombinerInputNV = NULL;
PFNGLCOMBINEROUTPUTNVPROC glCombinerOutputNV = NULL;
PFNGLFINALCOMBINERINPUTNVPROC glFinalCombinerInputNV = NULL;
PFNGLGETCOMBINERINPUTPARAMETERFVNVPROC glGetCombinerInputParameterfvNV = NULL;
PFNGLGETCOMBINERINPUTPARAMETERIVNVPROC glGetCombinerInputParameterivNV = NULL;
PFNGLGETCOMBINEROUTPUTPARAMETERFVNVPROC glGetCombinerOutputParameterfvNV = NULL;
PFNGLGETCOMBINEROUTPUTPARAMETERIVNVPROC glGetCombinerOutputParameterivNV = NULL;
PFNGLGETFINALCOMBINERINPUTPARAMETERFVNVPROC glGetFinalCombinerInputParameterfvNV = NULL;
PFNGLGETFINALCOMBINERINPUTPARAMETERIVNVPROC glGetFinalCombinerInputParameterivNV = NULL;
#endif // _WIN32
int CheckForNVRegisterCombinersSupport(void) {
const char search[]="GL_NV_register_combiners";
int i, pos=0;
int maxpos=strlen(search)-1;
char extensions[10000];
strcpy(extensions,(const char *)glGetString(GL_EXTENSIONS));
int len=strlen(extensions);
for (i=0; i<len; i++) {
if ((i==0) || ((i>1) && extensions[i-1]==' ')) {
pos=0;
while(extensions[i]!=' ') {
if (extensions[i]==search[pos]) pos++;
if ((pos>maxpos) && extensions[i+1]==' ') {
//printf(search);
// printf(" supported.\n");
return 1;
}
i++;
}
}
}
//printf(search);
//printf(" not supported.\n");
return 0;
}
int GL_NV_register_combiners_Init(void) {
if (!CheckForNVRegisterCombinersSupport()) return 0;
#ifdef _WIN32
glCombinerParameterfvNV=(PFNGLCOMBINERPARAMETERFVNVPROC) wglGetProcAddress("glCombinerParameterfvNV");
if (glCombinerParameterfvNV==NULL) {fprintf(stderr,"glCombinerParameterfvNV not found.\n"); return 0;}
glCombinerParameterivNV=(PFNGLCOMBINERPARAMETERIVNVPROC) wglGetProcAddress("glCombinerParameterivNV");
if (glCombinerParameterivNV==NULL) {fprintf(stderr,"glCombinerParameterivNV not found.\n"); return 0;}
glCombinerParameterfNV=(PFNGLCOMBINERPARAMETERFNVPROC) wglGetProcAddress("glCombinerParameterfNV");
if (glCombinerParameterfvNV==NULL) {fprintf(stderr,"glCombinerParameterfNV not found.\n"); return 0;}
glCombinerParameteriNV=(PFNGLCOMBINERPARAMETERINVPROC) wglGetProcAddress("glCombinerParameteriNV");
if (glCombinerParameterivNV==NULL) {fprintf(stderr,"glCombinerParameteriNV not found.\n"); return 0;}
glCombinerInputNV=(PFNGLCOMBINERINPUTNVPROC) wglGetProcAddress("glCombinerInputNV");
if (glCombinerInputNV==NULL) {fprintf(stderr,"glCombinerInputNV not found.\n"); return 0;}
glCombinerOutputNV=(PFNGLCOMBINEROUTPUTNVPROC) wglGetProcAddress("glCombinerOutputNV");
if (glCombinerOutputNV==NULL) {fprintf(stderr,"glCombinerOutputNV not found.\n"); return 0;}
glFinalCombinerInputNV=(PFNGLFINALCOMBINERINPUTNVPROC) wglGetProcAddress("glFinalCombinerInputNV");
if (glFinalCombinerInputNV==NULL) {fprintf(stderr,"glFinalCombinerInputNV not found.\n"); return 0;}
glGetCombinerInputParameterfvNV=(PFNGLGETCOMBINERINPUTPARAMETERFVNVPROC) wglGetProcAddress("glGetCombinerInputParameterfvNV");
if (glGetCombinerInputParameterfvNV==NULL) {fprintf(stderr,"glGetCombinerInputParameterfvNV not found.\n"); return 0;}
glGetCombinerInputParameterivNV=(PFNGLGETCOMBINERINPUTPARAMETERIVNVPROC) wglGetProcAddress("glGetCombinerInputParameterivNV");
if (glGetCombinerInputParameterivNV==NULL) {fprintf(stderr,"glGetCombinerInputParameterivNV not found.\n"); return 0;}
glGetCombinerOutputParameterfvNV=(PFNGLGETCOMBINEROUTPUTPARAMETERFVNVPROC) wglGetProcAddress("glGetCombinerOutputParameterfvNV");
if (glGetCombinerOutputParameterfvNV==NULL) {fprintf(stderr,"glGetCombinerOutputParameterfvNV not found.\n"); return 0;}
glGetCombinerOutputParameterivNV=(PFNGLGETCOMBINEROUTPUTPARAMETERIVNVPROC) wglGetProcAddress("glGetCombinerOutputParameterivNV");
if (glGetCombinerOutputParameterivNV==NULL) {fprintf(stderr,"glGetCombinerOutputParameterivNV not found.\n"); return 0;}
glGetFinalCombinerInputParameterfvNV=(PFNGLGETFINALCOMBINERINPUTPARAMETERFVNVPROC) wglGetProcAddress("glGetFinalCombinerInputParameterfvNV");
if (glGetFinalCombinerInputParameterfvNV==NULL) {fprintf(stderr,"glGetFinalCombinerInputParameterfvNV not found.\n"); return 0;}
glGetFinalCombinerInputParameterivNV=(PFNGLGETFINALCOMBINERINPUTPARAMETERIVNVPROC) wglGetProcAddress("glGetFinalCombinerInputParameterivNV");
if (glGetFinalCombinerInputParameterivNV==NULL) {fprintf(stderr,"glGetFinalCombinerInputParameterivNV not found.\n"); return 0;}
#endif // _WIN32
return 1;
}
#endif // NV_REGISTER_COMBINERS_INITIALIZE
#ifdef __cplusplus
}
#endif
#endif // not __NV_REGISTER_COMBINERS_H_