glsmap.h 5.03 KB
Newer Older
Dat Nguyen's avatar
Dat Nguyen committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137
#ifndef __glsmap_h__
#define __glsmap_h__

/* Copyright (c) Mark J. Kilgard, 1998.  */

/* This program is freely distributable without licensing fees
   and is provided without guarantee or warrantee expressed or
   implied. This program is -not- in the public domain. */

#if defined(_WIN32)

/* Try hard to avoid including <windows.h> to avoid name space pollution,
   but Win32's <GL/gl.h> needs APIENTRY and WINGDIAPI defined properly. */
# if 0
#  define  WIN32_LEAN_AND_MEAN
#  include <windows.h>
# else
   /* XXX This is from Win32's <windef.h> */
#  ifndef APIENTRY
#   if (_MSC_VER >= 800) || defined(_STDCALL_SUPPORTED)
#    define APIENTRY    __stdcall
#   else
#    define APIENTRY
#   endif
#  endif
#  ifndef CALLBACK
    /* XXX This is from Win32's <winnt.h> */
#   if (defined(_M_MRX000) || defined(_M_IX86) || defined(_M_ALPHA) || defined(_M_PPC)) && !defined(MIDL_PASS)
#    define CALLBACK __stdcall
#   else
#    define CALLBACK
#   endif
#  endif
   /* XXX This is from Win32's <wingdi.h> and <winnt.h> */
#  ifndef WINGDIAPI
#   define WINGDIAPI __declspec(dllimport)
#  endif
   /* XXX This is from Win32's <ctype.h> */
#  ifndef _WCHAR_T_DEFINED
typedef unsigned short wchar_t;
#   define _WCHAR_T_DEFINED
#  endif
# endif

#pragma warning (disable:4244)	/* Disable bogus conversion warnings. */
#pragma warning (disable:4305)  /* VC++ 5.0 version of above warning. */

#endif /* _WIN32 */

#include <OpenGL/gl.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
        SMAP_CLEAR_SMAP_TEXTURE = 0x1,
        SMAP_GENERATE_VIEW_MIPMAPS = 0x2,
        SMAP_GENERATE_SMAP_MIPMAPS = 0x4,
        SMAP_GENERATE_MIPMAPS = 0x6  /* both of above */
} SphereMapFlags;

/* Cube view enumerants. */
enum {
	SMAP_FRONT = 0,
	SMAP_TOP = 1,
	SMAP_BOTTOM = 2,
	SMAP_LEFT = 3,
	SMAP_RIGHT = 4,
	SMAP_BACK = 5
};

typedef struct _SphereMap SphereMap;

extern SphereMap *smapCreateSphereMap(SphereMap *shareSmap);
extern void smapDestroySphereMap(SphereMap *smap);

extern void smapConfigureSphereMapMesh(SphereMap *smap, int steps, int rings, int edgeExtend);

extern void smapSetSphereMapTexObj(SphereMap *smap, GLuint texobj);
extern void smapSetViewTexObj(SphereMap *smap, GLuint texobj);
extern void smapSetViewTexObjs(SphereMap *smap, GLuint texobjs[6]);
extern void smapGetSphereMapTexObj(SphereMap *smap, GLuint *texobj);
extern void smapGetViewTexObj(SphereMap *smap, GLuint *texobj);
extern void smapGetViewTexObjs(SphereMap *smap, GLuint texobjs[6]);

extern void smapSetFlags(SphereMap *smap, SphereMapFlags flags);
extern void smapGetFlags(SphereMap *smap, SphereMapFlags *flags);

extern void smapSetViewOrigin(SphereMap *smap, GLint x, GLint y);
extern void smapSetSphereMapOrigin(SphereMap *smap, GLint x, GLint y);
extern void smapGetViewOrigin(SphereMap *smap, GLint *x, GLint *y);
extern void smapGetSphereMapOrigin(SphereMap *smap, GLint *x, GLint *y);

extern void smapSetEye(SphereMap *smap, GLfloat eyex, GLfloat eyey,	GLfloat eyez);
extern void smapSetEyeVector(SphereMap *smap, GLfloat *eye);
extern void smapSetUp(SphereMap *smap, GLfloat upx, GLfloat upy, GLfloat upz);
extern void smapSetUpVector(SphereMap *smap, GLfloat *up);
extern void smapSetObject(SphereMap *smap, GLfloat objx, GLfloat objy, GLfloat objz);
extern void smapSetObjectVector(SphereMap *smap, GLfloat *obj);
extern void smapGetEye(SphereMap *smap, GLfloat *eyex, GLfloat *eyey, GLfloat *eyez);
extern void smapGetEyeVector(SphereMap *smap, GLfloat *eye);
extern void smapGetUp(SphereMap *smap, GLfloat *upx, GLfloat *upy, GLfloat *upz);
extern void smapGetUpVector(SphereMap *smap, GLfloat *up);
extern void smapGetObject(SphereMap *smap, GLfloat *objx, GLfloat *objy, GLfloat *objz);
extern void smapGetObjectVector(SphereMap *smap, GLfloat *obj);

extern void smapSetNearFar(SphereMap *smap, GLfloat viewNear, GLfloat viewFar);
extern void smapGetNearFar(SphereMap *smap, GLfloat *viewNear, GLfloat *viewFar);

extern void smapSetSphereMapTexDim(SphereMap *smap, GLsizei texdim);
extern void smapSetViewTexDim(SphereMap *smap, GLsizei texdim);
extern void smapGetSphereMapTexDim(SphereMap *smap, GLsizei *texdim);
extern void smapGetViewTexDim(SphereMap *smap, GLsizei *texdim);

extern void smapSetContextData(SphereMap *smap, void *context);
extern void smapGetContextData(SphereMap *smap, void **context);

extern void smapSetPositionLightsFunc(SphereMap *smap, void (*positionLights)(int view, void *context));
extern void smapSetDrawViewFunc(SphereMap *smap, void (*drawView)(int view, void *context));
extern void smapGetPositionLightsFunc(SphereMap *smap, void (**positionLights)(int view, void *context));
extern void smapGetDrawViewFunc(SphereMap *smap, void (**drawView)(int view, void *context));

extern void smapGenViewTex(SphereMap *smap, int view);
extern void smapGenViewTexs(SphereMap *smap);
extern void smapGenSphereMapFromViewTexs(SphereMap *smap);
extern void smapGenSphereMap(SphereMap *smap);
extern void smapGenSphereMapWithOneViewTex(SphereMap *smap);

extern int smapRvecToSt(float rvec[3], float st[2]);
extern void smapStToRvec(float *st, float *rvec);

#ifdef __cplusplus
}

#endif
#endif /* __glsmap_h__ */