diff options
Diffstat (limited to 'src/glu/mesa/glu.c')
| -rw-r--r-- | src/glu/mesa/glu.c | 294 |
1 files changed, 111 insertions, 183 deletions
diff --git a/src/glu/mesa/glu.c b/src/glu/mesa/glu.c index 8ccacf5f7f1..11d1cd8675d 100644 --- a/src/glu/mesa/glu.c +++ b/src/glu/mesa/glu.c @@ -1,9 +1,9 @@ -/* $Id: glu.c,v 1.19 2000/01/07 07:22:48 brianp Exp $ */ +/* $Id: glu.c,v 1.20 2000/07/11 14:11:04 brianp Exp $ */ /* * Mesa 3-D graphics library * Version: 3.3 - * Copyright (C) 1999-2000 Brian Paul + * Copyright (C) 1995-2000 Brian Paul * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public @@ -21,108 +21,6 @@ */ -/* - * $Log: glu.c,v $ - * Revision 1.19 2000/01/07 07:22:48 brianp - * updated version string - * - * Revision 1.18 1999/11/22 22:15:50 brianp - * removed GLU_EXT_get_proc_address from ext strings - * - * Revision 1.17 1999/11/19 21:23:37 brianp - * replace encounteed with encountered - * - * Revision 1.16 1999/10/27 09:47:41 brianp - * disabled gluGetProcAddressEXT - * - * Revision 1.15 1999/09/19 02:03:19 tjump - * More Win32 build compliance fixups - * - * Revision 1.14 1999/09/17 12:21:53 brianp - * glGetProcAddressEXT changes to accomodate Win32 and non-Win32 - * - * Revision 1.13 1999/09/17 03:17:18 tjump - * Patch error fixup - * - * Revision 1.12 1999/09/17 03:07:28 tjump - * Win32 build req't updates - * - * Revision 1.11 1999/09/17 01:00:38 brianp - * fixed typo - * - * Revision 1.10 1999/09/17 00:06:14 brianp - * gluGetProcAddressEXT change for C++ / BeOS - * - * Revision 1.9 1999/09/16 22:37:56 brianp - * added some casts in gluGetProcAddressEXT() - * - * Revision 1.8 1999/09/16 16:53:28 brianp - * clean-up of GLU_EXT_get_proc_address - * - * Revision 1.7 1999/09/14 00:11:40 brianp - * added gluCheckExtension() - * - * Revision 1.6 1999/09/13 14:31:32 joukj - * - * strcmp needs the string.h - * - * Revision 1.5 1999/09/11 12:04:54 brianp - * added 1.2 function to gluGetProcAddressEXT() - * - * Revision 1.4 1999/09/11 11:36:26 brianp - * added GLU_EXT_get_proc_address - * - * Revision 1.3 1999/09/10 04:32:10 gareth - * Fixed triangle output, recovery process termination. - * - * Revision 1.2 1999/09/10 02:03:31 gareth - * Added GLU 1.3 tessellation (except winding rule code). - * - * Revision 1.1.1.1 1999/08/19 00:55:42 jtg - * Imported sources - * - * Revision 1.13 1999/03/31 19:07:28 brianp - * added GL_EXT_abgr to extensions - * - * Revision 1.12 1999/02/06 06:12:41 brianp - * updated version string to 3.1 - * - * Revision 1.11 1999/01/03 03:23:15 brianp - * now using GLAPIENTRY and GLCALLBACK keywords (Ted Jump) - * - * Revision 1.10 1998/04/22 00:35:50 brianp - * changed version to 3.0 - * - * Revision 1.9 1997/12/09 03:03:32 brianp - * changed version to 2.6 - * - * Revision 1.8 1997/10/04 01:30:20 brianp - * changed version to 2.5 - * - * Revision 1.7 1997/08/13 01:25:21 brianp - * changed version string to 2.4 - * - * Revision 1.6 1997/07/24 01:28:44 brianp - * changed precompiled header symbol from PCH to PC_HEADER - * - * Revision 1.5 1997/07/13 22:59:11 brianp - * added const to viewport parameter of gluPickMatrix() - * - * Revision 1.4 1997/05/28 02:29:38 brianp - * added support for precompiled headers (PCH), inserted APIENTRY keyword - * - * Revision 1.3 1997/04/12 16:19:02 brianp - * changed version to 2.3 - * - * Revision 1.2 1997/03/11 00:58:34 brianp - * changed version to 2.2 - * - * Revision 1.1 1996/09/27 01:19:39 brianp - * Initial revision - * - */ - - #ifdef PC_HEADER #include "all.h" #else @@ -148,9 +46,10 @@ -void GLAPIENTRY gluLookAt( GLdouble eyex, GLdouble eyey, GLdouble eyez, - GLdouble centerx, GLdouble centery, GLdouble centerz, - GLdouble upx, GLdouble upy, GLdouble upz ) +void GLAPIENTRY +gluLookAt(GLdouble eyex, GLdouble eyey, GLdouble eyez, + GLdouble centerx, GLdouble centery, GLdouble centerz, + GLdouble upx, GLdouble upy, GLdouble upz) { GLdouble m[16]; GLdouble x[3], y[3], z[3]; @@ -162,8 +61,8 @@ void GLAPIENTRY gluLookAt( GLdouble eyex, GLdouble eyey, GLdouble eyez, z[0] = eyex - centerx; z[1] = eyey - centery; z[2] = eyez - centerz; - mag = sqrt( z[0]*z[0] + z[1]*z[1] + z[2]*z[2] ); - if (mag) { /* mpichler, 19950515 */ + mag = sqrt(z[0] * z[0] + z[1] * z[1] + z[2] * z[2]); + if (mag) { /* mpichler, 19950515 */ z[0] /= mag; z[1] /= mag; z[2] /= mag; @@ -175,28 +74,28 @@ void GLAPIENTRY gluLookAt( GLdouble eyex, GLdouble eyey, GLdouble eyez, y[2] = upz; /* X vector = Y cross Z */ - x[0] = y[1]*z[2] - y[2]*z[1]; - x[1] = -y[0]*z[2] + y[2]*z[0]; - x[2] = y[0]*z[1] - y[1]*z[0]; + x[0] = y[1] * z[2] - y[2] * z[1]; + x[1] = -y[0] * z[2] + y[2] * z[0]; + x[2] = y[0] * z[1] - y[1] * z[0]; /* Recompute Y = Z cross X */ - y[0] = z[1]*x[2] - z[2]*x[1]; - y[1] = -z[0]*x[2] + z[2]*x[0]; - y[2] = z[0]*x[1] - z[1]*x[0]; + y[0] = z[1] * x[2] - z[2] * x[1]; + y[1] = -z[0] * x[2] + z[2] * x[0]; + y[2] = z[0] * x[1] - z[1] * x[0]; /* mpichler, 19950515 */ /* cross product gives area of parallelogram, which is < 1.0 for * non-perpendicular unit-length vectors; so normalize x, y here */ - mag = sqrt( x[0]*x[0] + x[1]*x[1] + x[2]*x[2] ); + mag = sqrt(x[0] * x[0] + x[1] * x[1] + x[2] * x[2]); if (mag) { x[0] /= mag; x[1] /= mag; x[2] /= mag; } - mag = sqrt( y[0]*y[0] + y[1]*y[1] + y[2]*y[2] ); + mag = sqrt(y[0] * y[0] + y[1] * y[1] + y[2] * y[2]); if (mag) { y[0] /= mag; y[1] /= mag; @@ -204,47 +103,59 @@ void GLAPIENTRY gluLookAt( GLdouble eyex, GLdouble eyey, GLdouble eyez, } #define M(row,col) m[col*4+row] - M(0,0) = x[0]; M(0,1) = x[1]; M(0,2) = x[2]; M(0,3) = 0.0; - M(1,0) = y[0]; M(1,1) = y[1]; M(1,2) = y[2]; M(1,3) = 0.0; - M(2,0) = z[0]; M(2,1) = z[1]; M(2,2) = z[2]; M(2,3) = 0.0; - M(3,0) = 0.0; M(3,1) = 0.0; M(3,2) = 0.0; M(3,3) = 1.0; + M(0, 0) = x[0]; + M(0, 1) = x[1]; + M(0, 2) = x[2]; + M(0, 3) = 0.0; + M(1, 0) = y[0]; + M(1, 1) = y[1]; + M(1, 2) = y[2]; + M(1, 3) = 0.0; + M(2, 0) = z[0]; + M(2, 1) = z[1]; + M(2, 2) = z[2]; + M(2, 3) = 0.0; + M(3, 0) = 0.0; + M(3, 1) = 0.0; + M(3, 2) = 0.0; + M(3, 3) = 1.0; #undef M - glMultMatrixd( m ); + glMultMatrixd(m); /* Translate Eye to Origin */ - glTranslated( -eyex, -eyey, -eyez ); + glTranslated(-eyex, -eyey, -eyez); } -void GLAPIENTRY gluOrtho2D( GLdouble left, GLdouble right, - GLdouble bottom, GLdouble top ) +void GLAPIENTRY +gluOrtho2D(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top) { - glOrtho( left, right, bottom, top, -1.0, 1.0 ); + glOrtho(left, right, bottom, top, -1.0, 1.0); } -void GLAPIENTRY gluPerspective( GLdouble fovy, GLdouble aspect, - GLdouble zNear, GLdouble zFar ) +void GLAPIENTRY +gluPerspective(GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar) { GLdouble xmin, xmax, ymin, ymax; - ymax = zNear * tan( fovy * M_PI / 360.0 ); + ymax = zNear * tan(fovy * M_PI / 360.0); ymin = -ymax; xmin = ymin * aspect; xmax = ymax * aspect; - glFrustum( xmin, xmax, ymin, ymax, zNear, zFar ); + glFrustum(xmin, xmax, ymin, ymax, zNear, zFar); } -void GLAPIENTRY gluPickMatrix( GLdouble x, GLdouble y, - GLdouble width, GLdouble height, - const GLint viewport[4] ) +void GLAPIENTRY +gluPickMatrix(GLdouble x, GLdouble y, + GLdouble width, GLdouble height, const GLint viewport[4]) { GLfloat m[16]; GLfloat sx, sy; @@ -256,18 +167,31 @@ void GLAPIENTRY gluPickMatrix( GLdouble x, GLdouble y, ty = (viewport[3] + 2.0 * (viewport[1] - y)) / height; #define M(row,col) m[col*4+row] - M(0,0) = sx; M(0,1) = 0.0; M(0,2) = 0.0; M(0,3) = tx; - M(1,0) = 0.0; M(1,1) = sy; M(1,2) = 0.0; M(1,3) = ty; - M(2,0) = 0.0; M(2,1) = 0.0; M(2,2) = 1.0; M(2,3) = 0.0; - M(3,0) = 0.0; M(3,1) = 0.0; M(3,2) = 0.0; M(3,3) = 1.0; + M(0, 0) = sx; + M(0, 1) = 0.0; + M(0, 2) = 0.0; + M(0, 3) = tx; + M(1, 0) = 0.0; + M(1, 1) = sy; + M(1, 2) = 0.0; + M(1, 3) = ty; + M(2, 0) = 0.0; + M(2, 1) = 0.0; + M(2, 2) = 1.0; + M(2, 3) = 0.0; + M(3, 0) = 0.0; + M(3, 1) = 0.0; + M(3, 2) = 0.0; + M(3, 3) = 1.0; #undef M - glMultMatrixf( m ); + glMultMatrixf(m); } -const GLubyte* GLAPIENTRY gluErrorString( GLenum errorCode ) +const GLubyte *GLAPIENTRY +gluErrorString(GLenum errorCode) { static char *tess_error[] = { "missing gluBeginPolygon", @@ -320,48 +244,48 @@ const GLubyte* GLAPIENTRY gluErrorString( GLenum errorCode ) }; /* GL Errors */ - if (errorCode==GL_NO_ERROR) { + if (errorCode == GL_NO_ERROR) { return (GLubyte *) "no error"; } - else if (errorCode==GL_INVALID_VALUE) { + else if (errorCode == GL_INVALID_VALUE) { return (GLubyte *) "invalid value"; } - else if (errorCode==GL_INVALID_ENUM) { + else if (errorCode == GL_INVALID_ENUM) { return (GLubyte *) "invalid enum"; } - else if (errorCode==GL_INVALID_OPERATION) { + else if (errorCode == GL_INVALID_OPERATION) { return (GLubyte *) "invalid operation"; } - else if (errorCode==GL_STACK_OVERFLOW) { + else if (errorCode == GL_STACK_OVERFLOW) { return (GLubyte *) "stack overflow"; } - else if (errorCode==GL_STACK_UNDERFLOW) { + else if (errorCode == GL_STACK_UNDERFLOW) { return (GLubyte *) "stack underflow"; } - else if (errorCode==GL_OUT_OF_MEMORY) { + else if (errorCode == GL_OUT_OF_MEMORY) { return (GLubyte *) "out of memory"; } /* GLU Errors */ - else if (errorCode==GLU_NO_ERROR) { + else if (errorCode == GLU_NO_ERROR) { return (GLubyte *) "no error"; } - else if (errorCode==GLU_INVALID_ENUM) { + else if (errorCode == GLU_INVALID_ENUM) { return (GLubyte *) "invalid enum"; } - else if (errorCode==GLU_INVALID_VALUE) { + else if (errorCode == GLU_INVALID_VALUE) { return (GLubyte *) "invalid value"; } - else if (errorCode==GLU_OUT_OF_MEMORY) { + else if (errorCode == GLU_OUT_OF_MEMORY) { return (GLubyte *) "out of memory"; } - else if (errorCode==GLU_INCOMPATIBLE_GL_VERSION) { + else if (errorCode == GLU_INCOMPATIBLE_GL_VERSION) { return (GLubyte *) "incompatible GL version"; } - else if (errorCode>=GLU_TESS_ERROR1 && errorCode<=GLU_TESS_ERROR8) { - return (GLubyte *) tess_error[errorCode-GLU_TESS_ERROR1]; + else if (errorCode >= GLU_TESS_ERROR1 && errorCode <= GLU_TESS_ERROR8) { + return (GLubyte *) tess_error[errorCode - GLU_TESS_ERROR1]; } - else if (errorCode>=GLU_NURBS_ERROR1 && errorCode<=GLU_NURBS_ERROR37) { - return (GLubyte *) nurbs_error[errorCode-GLU_NURBS_ERROR1]; + else if (errorCode >= GLU_NURBS_ERROR1 && errorCode <= GLU_NURBS_ERROR37) { + return (GLubyte *) nurbs_error[errorCode - GLU_NURBS_ERROR1]; } else { return NULL; @@ -374,58 +298,60 @@ const GLubyte* GLAPIENTRY gluErrorString( GLenum errorCode ) * New in GLU 1.1 */ -const GLubyte* GLAPIENTRY gluGetString( GLenum name ) +const GLubyte *GLAPIENTRY +gluGetString(GLenum name) { static char *extensions = "GL_EXT_abgr"; - static char *version = "1.2 Mesa 3.3 beta"; + static char *version = "1.1 Mesa 3.2.1"; switch (name) { - case GLU_EXTENSIONS: - return (GLubyte *) extensions; - case GLU_VERSION: - return (GLubyte *) version; - default: - return NULL; + case GLU_EXTENSIONS: + return (GLubyte *) extensions; + case GLU_VERSION: + return (GLubyte *) version; + default: + return NULL; } } -#if 0 /* gluGetProcAddressEXT not finalized yet! */ +#if 0 /* gluGetProcAddressEXT not finalized yet! */ #ifdef __cplusplus /* for BeOS R4.5 */ - void GLAPIENTRY (*gluGetProcAddressEXT(const GLubyte *procName))(...) +void GLAPIENTRY(*gluGetProcAddressEXT(const GLubyte * procName)) (...) #else - void (GLAPIENTRY *gluGetProcAddressEXT(const GLubyte *procName))() +void (GLAPIENTRY * gluGetProcAddressEXT(const GLubyte * procName)) () #endif { - struct proc { + struct proc + { const char *name; void *address; }; static struct proc procTable[] = { - { "gluGetProcAddressEXT", (void *) gluGetProcAddressEXT }, /* me! */ + {"gluGetProcAddressEXT", (void *) gluGetProcAddressEXT}, /* me! */ /* new 1.1 functions */ - { "gluGetString", (void *) gluGetString }, + {"gluGetString", (void *) gluGetString}, /* new 1.2 functions */ - { "gluTessBeginPolygon", (void *) gluTessBeginPolygon }, - { "gluTessBeginContour", (void *) gluTessBeginContour }, - { "gluTessEndContour", (void *) gluTessEndContour }, - { "gluTessEndPolygon", (void *) gluTessEndPolygon }, - { "gluGetTessProperty", (void *) gluGetTessProperty }, + {"gluTessBeginPolygon", (void *) gluTessBeginPolygon}, + {"gluTessBeginContour", (void *) gluTessBeginContour}, + {"gluTessEndContour", (void *) gluTessEndContour}, + {"gluTessEndPolygon", (void *) gluTessEndPolygon}, + {"gluGetTessProperty", (void *) gluGetTessProperty}, /* new 1.3 functions */ - { NULL, NULL } + {NULL, NULL} }; GLuint i; for (i = 0; procTable[i].address; i++) { if (strcmp((const char *) procName, procTable[i].name) == 0) - return (void (GLAPIENTRY *)()) procTable[i].address; + return (void (GLAPIENTRY *) ()) procTable[i].address; } return NULL; @@ -438,8 +364,9 @@ const GLubyte* GLAPIENTRY gluGetString( GLenum name ) /* * New in GLU 1.3 */ +#ifdef GLU_VERSION_1_3 GLboolean GLAPIENTRY -gluCheckExtension( const char *extName, const GLubyte *extString ) +gluCheckExtension(const char *extName, const GLubyte * extString) { assert(extName); assert(extString); @@ -448,14 +375,15 @@ gluCheckExtension( const char *extName, const GLubyte *extString ) const char *start = (const char *) extString; while (1) { - const char *c = strstr( start, extName ); - if (!c) - return GL_FALSE; + const char *c = strstr(start, extName); + if (!c) + return GL_FALSE; - if ((c == start || c[-1] == ' ') && (c[len] == ' ' || c[len] == 0)) - return GL_TRUE; + if ((c == start || c[-1] == ' ') && (c[len] == ' ' || c[len] == 0)) + return GL_TRUE; - start = c + len; + start = c + len; } } } +#endif |