dlls/glu32/glu.c

   1 /*
   2  * Copyright 2001 Marcus Meissner
   3  * Copyright 2017 Alexandre Julliard
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include "config.h"
  21 #include "wine/port.h"
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27
  28 #include "wine/wgl.h"
  29 #include "wine/glu.h"
  30 #include "wine/library.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(glu);
  34
  35 static const struct { GLuint err; const char *str; } errors[] =
  36 {
  37     { GL_NO_ERROR, "no error" },
  38     { GL_INVALID_ENUM, "invalid enumerant" },
  39     { GL_INVALID_VALUE, "invalid value" },
  40     { GL_INVALID_OPERATION, "invalid operation" },
  41     { GL_STACK_OVERFLOW, "stack overflow" },
  42     { GL_STACK_UNDERFLOW, "stack underflow" },
  43     { GL_OUT_OF_MEMORY, "out of memory" },
  44     { GL_TABLE_TOO_LARGE, "table too large" },
  45     { GL_INVALID_FRAMEBUFFER_OPERATION_EXT, "invalid framebuffer operation" },
  46     { GLU_INVALID_ENUM, "invalid enumerant" },
  47     { GLU_INVALID_VALUE, "invalid value" },
  48     { GLU_OUT_OF_MEMORY, "out of memory" },
  49     { GLU_INCOMPATIBLE_GL_VERSION, "incompatible gl version" },
  50     { GLU_TESS_ERROR1, "gluTessBeginPolygon() must precede a gluTessEndPolygon()" },
  51     { GLU_TESS_ERROR2, "gluTessBeginContour() must precede a gluTessEndContour()" },
  52     { GLU_TESS_ERROR3, "gluTessEndPolygon() must follow a gluTessBeginPolygon()" },
  53     { GLU_TESS_ERROR4, "gluTessEndContour() must follow a gluTessBeginContour()" },
  54     { GLU_TESS_ERROR5, "a coordinate is too large" },
  55     { GLU_TESS_ERROR6, "need combine callback" },
  56     { GLU_NURBS_ERROR1, "spline order un-supported" },
  57     { GLU_NURBS_ERROR2, "too few knots" },
  58     { GLU_NURBS_ERROR3, "valid knot range is empty" },
  59     { GLU_NURBS_ERROR4, "decreasing knot sequence knot" },
  60     { GLU_NURBS_ERROR5, "knot multiplicity greater than order of spline" },
  61     { GLU_NURBS_ERROR6, "gluEndCurve() must follow gluBeginCurve()" },
  62     { GLU_NURBS_ERROR7, "gluBeginCurve() must precede gluEndCurve()" },
  63     { GLU_NURBS_ERROR8, "missing or extra geometric data" },
  64     { GLU_NURBS_ERROR9, "can't draw piecewise linear trimming curves" },
  65     { GLU_NURBS_ERROR10, "missing or extra domain data" },
  66     { GLU_NURBS_ERROR11, "missing or extra domain data" },
  67     { GLU_NURBS_ERROR12, "gluEndTrim() must precede gluEndSurface()" },
  68     { GLU_NURBS_ERROR13, "gluBeginSurface() must precede gluEndSurface()" },
  69     { GLU_NURBS_ERROR14, "curve of improper type passed as trim curve" },
  70     { GLU_NURBS_ERROR15, "gluBeginSurface() must precede gluBeginTrim()" },
  71     { GLU_NURBS_ERROR16, "gluEndTrim() must follow gluBeginTrim()" },
  72     { GLU_NURBS_ERROR17, "gluBeginTrim() must precede gluEndTrim()" },
  73     { GLU_NURBS_ERROR18, "invalid or missing trim curve" },
  74     { GLU_NURBS_ERROR19, "gluBeginTrim() must precede gluPwlCurve()" },
  75     { GLU_NURBS_ERROR20, "piecewise linear trimming curve referenced twice" },
  76     { GLU_NURBS_ERROR21, "piecewise linear trimming curve and nurbs curve mixed" },
  77     { GLU_NURBS_ERROR22, "improper usage of trim data type" },
  78     { GLU_NURBS_ERROR23, "nurbs curve referenced twice" },
  79     { GLU_NURBS_ERROR24, "nurbs curve and piecewise linear trimming curve mixed" },
  80     { GLU_NURBS_ERROR25, "nurbs surface referenced twice" },
  81     { GLU_NURBS_ERROR26, "invalid property" },
  82     { GLU_NURBS_ERROR27, "gluEndSurface() must follow gluBeginSurface()" },
  83     { GLU_NURBS_ERROR28, "intersecting or misoriented trim curves" },
  84     { GLU_NURBS_ERROR29, "intersecting trim curves" },
  85     { GLU_NURBS_ERROR30, "UNUSED" },
  86     { GLU_NURBS_ERROR31, "unconnected trim curves" },
  87     { GLU_NURBS_ERROR32, "unknown knot error" },
  88     { GLU_NURBS_ERROR33, "negative vertex count encountered" },
  89     { GLU_NURBS_ERROR34, "negative byte-stride encountered" },
  90     { GLU_NURBS_ERROR35, "unknown type descriptor" },
  91     { GLU_NURBS_ERROR36, "null control point reference" },
  92     { GLU_NURBS_ERROR37, "duplicate point on piecewise linear trimming curve" },
  93 };
  94
  95 typedef void (*_GLUfuncptr)(void);
  96
  97 static void  (*p_gluBeginCurve)( GLUnurbs* nurb );
  98 static void  (*p_gluBeginSurface)( GLUnurbs* nurb );
  99 static void  (*p_gluBeginTrim)( GLUnurbs* nurb );
 100 static void  (*p_gluDeleteNurbsRenderer)( GLUnurbs* nurb );
 101 static void  (*p_gluEndCurve)( GLUnurbs* nurb );
 102 static void  (*p_gluEndSurface)( GLUnurbs* nurb );
 103 static void  (*p_gluEndTrim)( GLUnurbs* nurb );
 104 static void  (*p_gluGetNurbsProperty)( GLUnurbs* nurb, GLenum property, GLfloat* data );
 105 static void  (*p_gluLoadSamplingMatrices)( GLUnurbs* nurb, const GLfloat *model, const GLfloat *perspective, const GLint *view );
 106 static GLUnurbs* (*p_gluNewNurbsRenderer)(void);
 107 static void  (*p_gluNurbsCallback)( GLUnurbs* nurb, GLenum which, _GLUfuncptr CallBackFunc );
 108 static void  (*p_gluNurbsCurve)( GLUnurbs* nurb, GLint knotCount, GLfloat *knots, GLint stride, GLfloat *control, GLint order, GLenum type );
 109 static void  (*p_gluNurbsProperty)( GLUnurbs* nurb, GLenum property, GLfloat value );
 110 static void  (*p_gluNurbsSurface)( GLUnurbs* nurb, GLint sKnotCount, GLfloat* sKnots, GLint tKnotCount, GLfloat* tKnots, GLint sStride, GLint tStride, GLfloat* control, GLint sOrder, GLint tOrder, GLenum type );
 111 static void  (*p_gluPwlCurve)( GLUnurbs* nurb, GLint count, GLfloat* data, GLint stride, GLenum type );
 112
 113 static void *libglu_handle;
 114 static INIT_ONCE init_once = INIT_ONCE_STATIC_INIT;
 115
 116 static BOOL WINAPI load_libglu( INIT_ONCE *once, void *param, void **context )
 117 {
 118 #ifdef SONAME_LIBGLU
 119     char error[256];
 120
 121     if ((libglu_handle = wine_dlopen( SONAME_LIBGLU, RTLD_NOW, error, sizeof(error) )))
 122         TRACE( "loaded %s\n", SONAME_LIBGLU );
 123     else
 124         ERR( "Failed to load %s: %s\n", SONAME_LIBGLU, error );
 125 #else
 126     ERR( "libGLU is needed but support was not included at build time\n" );
 127 #endif
 128     return libglu_handle != NULL;
 129 }
 130
 131 static void *load_glufunc( const char *name )
 132 {
 133     void *ret;
 134
 135     if (!InitOnceExecuteOnce( &init_once, load_libglu, NULL, NULL )) return NULL;
 136     if (!(ret = wine_dlsym( libglu_handle, name, NULL, 0 ))) ERR( "Can't find %s\n", name );
 137     return ret;
 138 }
 139
 140 #define LOAD_FUNCPTR(f) (p_##f || (p_##f = load_glufunc( #f )))
 141
 142
 143 /***********************************************************************
 144  *              gluErrorString (GLU32.@)
 145  */
 146 const GLubyte * WINAPI wine_gluErrorString( GLenum errCode )
 147 {
 148     unsigned int i;
 149
 150     for (i = 0; i < ARRAY_SIZE(errors); i++)
 151         if (errors[i].err == errCode) return (const GLubyte *)errors[i].str;
 152
 153     return NULL;
 154 }
 155
 156 /***********************************************************************
 157  *              gluErrorUnicodeStringEXT (GLU32.@)
 158  */
 159 const WCHAR * WINAPI wine_gluErrorUnicodeStringEXT( GLenum errCode )
 160 {
 161     static WCHAR errorsW[ARRAY_SIZE(errors)][64];
 162     unsigned int i, j;
 163
 164     for (i = 0; i < ARRAY_SIZE(errors); i++)
 165     {
 166         if (errors[i].err != errCode) continue;
 167         if (!errorsW[i][0])  /* errors use only ASCII, do a simple mapping */
 168             for (j = 0; errors[i].str[j]; j++) errorsW[i][j] = (WCHAR)errors[i].str[j];
 169         return errorsW[i];
 170     }
 171     return NULL;
 172 }
 173
 174 /***********************************************************************
 175  *              gluNewNurbsRenderer (GLU32.@)
 176  */
 177 GLUnurbs * WINAPI wine_gluNewNurbsRenderer(void)
 178 {
 179     if (!LOAD_FUNCPTR( gluNewNurbsRenderer )) return NULL;
 180     return p_gluNewNurbsRenderer();
 181 }
 182
 183 /***********************************************************************
 184  *              gluDeleteNurbsRenderer (GLU32.@)
 185  */
 186 void WINAPI wine_gluDeleteNurbsRenderer( GLUnurbs *nobj )
 187 {
 188     if (!LOAD_FUNCPTR( gluDeleteNurbsRenderer )) return;
 189     p_gluDeleteNurbsRenderer( nobj );
 190 }
 191
 192 /***********************************************************************
 193  *              gluLoadSamplingMatrices (GLU32.@)
 194  */
 195 void WINAPI wine_gluLoadSamplingMatrices( GLUnurbs *nobj, const GLfloat modelMatrix[16],
 196                                           const GLfloat projMatrix[16], const GLint viewport[4] )
 197 {
 198     if (!LOAD_FUNCPTR( gluLoadSamplingMatrices )) return;
 199     p_gluLoadSamplingMatrices( nobj, modelMatrix, projMatrix, viewport );
 200 }
 201
 202 /***********************************************************************
 203  *              gluNurbsProperty (GLU32.@)
 204  */
 205 void WINAPI wine_gluNurbsProperty( GLUnurbs *nobj, GLenum property, GLfloat value )
 206 {
 207     if (!LOAD_FUNCPTR( gluNurbsProperty )) return;
 208     p_gluNurbsProperty( nobj, property, value );
 209 }
 210
 211 /***********************************************************************
 212  *              gluGetNurbsProperty (GLU32.@)
 213  */
 214 void WINAPI wine_gluGetNurbsProperty( GLUnurbs *nobj, GLenum property, GLfloat *value )
 215 {
 216     if (!LOAD_FUNCPTR( gluGetNurbsProperty )) return;
 217     p_gluGetNurbsProperty( nobj, property, value );
 218 }
 219
 220 /***********************************************************************
 221  *              gluBeginCurve (GLU32.@)
 222  */
 223 void WINAPI wine_gluBeginCurve( GLUnurbs *nobj )
 224 {
 225     if (!LOAD_FUNCPTR( gluBeginCurve )) return;
 226     p_gluBeginCurve( nobj );
 227 }
 228
 229 /***********************************************************************
 230  *              gluEndCurve (GLU32.@)
 231  */
 232 void WINAPI wine_gluEndCurve( GLUnurbs *nobj )
 233 {
 234     if (!LOAD_FUNCPTR( gluEndCurve )) return;
 235     p_gluEndCurve( nobj );
 236 }
 237
 238 /***********************************************************************
 239  *              gluNurbsCurve (GLU32.@)
 240  */
 241 void WINAPI wine_gluNurbsCurve( GLUnurbs *nobj, GLint nknots, GLfloat *knot,
 242                                 GLint stride, GLfloat *ctlarray, GLint order, GLenum type )
 243 {
 244     if (!LOAD_FUNCPTR( gluNurbsCurve )) return;
 245     p_gluNurbsCurve( nobj, nknots, knot, stride, ctlarray, order, type );
 246 }
 247
 248 /***********************************************************************
 249  *              gluBeginSurface (GLU32.@)
 250  */
 251 void WINAPI wine_gluBeginSurface( GLUnurbs *nobj )
 252 {
 253     if (!LOAD_FUNCPTR( gluBeginSurface )) return;
 254     p_gluBeginSurface( nobj );
 255 }
 256
 257 /***********************************************************************
 258  *              gluEndSurface (GLU32.@)
 259  */
 260 void WINAPI wine_gluEndSurface( GLUnurbs *nobj )
 261 {
 262     if (!LOAD_FUNCPTR( gluEndSurface )) return;
 263     p_gluEndSurface( nobj );
 264 }
 265
 266 /***********************************************************************
 267  *              gluNurbsSurface (GLU32.@)
 268  */
 269 void WINAPI wine_gluNurbsSurface( GLUnurbs *nobj, GLint sknot_count, float *sknot, GLint tknot_count,
 270                                   GLfloat *tknot, GLint s_stride, GLint t_stride, GLfloat *ctlarray,
 271                                   GLint sorder, GLint torder, GLenum type )
 272 {
 273     if (!LOAD_FUNCPTR( gluNurbsSurface )) return;
 274     p_gluNurbsSurface( nobj, sknot_count, sknot, tknot_count, tknot,
 275                        s_stride, t_stride, ctlarray, sorder, torder, type );
 276 }
 277
 278 /***********************************************************************
 279  *              gluBeginTrim (GLU32.@)
 280  */
 281 void WINAPI wine_gluBeginTrim( GLUnurbs *nobj )
 282 {
 283     if (!LOAD_FUNCPTR( gluBeginTrim )) return;
 284     p_gluBeginTrim( nobj );
 285 }
 286
 287 /***********************************************************************
 288  *              gluEndTrim (GLU32.@)
 289  */
 290 void WINAPI wine_gluEndTrim( GLUnurbs *nobj )
 291 {
 292     if (!LOAD_FUNCPTR( gluEndTrim )) return;
 293     p_gluEndTrim( nobj );
 294 }
 295
 296 /***********************************************************************
 297  *              gluPwlCurve (GLU32.@)
 298  */
 299 void WINAPI wine_gluPwlCurve( GLUnurbs *nobj, GLint count, GLfloat *array, GLint stride, GLenum type )
 300 {
 301     if (!LOAD_FUNCPTR( gluPwlCurve )) return;
 302     p_gluPwlCurve( nobj, count, array, stride, type );
 303 }
 304
 305 /***********************************************************************
 306  *              gluNurbsCallback (GLU32.@)
 307  */
 308 void WINAPI wine_gluNurbsCallback( GLUnurbs *nobj, GLenum which, void (CALLBACK *fn)(void) )
 309 {
 310     if (!LOAD_FUNCPTR( gluNurbsCallback )) return;
 311     /* FIXME: callback calling convention */
 312     p_gluNurbsCallback( nobj, which, (_GLUfuncptr)fn );
 313 }
 314
 315 /***********************************************************************
 316  *              gluGetString (GLU32.@)
 317  */
 318 const GLubyte * WINAPI wine_gluGetString( GLenum name )
 319 {
 320     switch (name)
 321     {
 322     case GLU_VERSION: return (const GLubyte *)"1.2.2.0 Microsoft Corporation"; /* sic */
 323     case GLU_EXTENSIONS: return (const GLubyte *)"";
 324     }
 325     return NULL;
 326 }
 327
 328 /***********************************************************************
 329  *              gluCheckExtension (GLU32.@)
 330  */
 331 GLboolean WINAPI wine_gluCheckExtension( const GLubyte *extName, const GLubyte *extString )
 332 {
 333     const char *list = (const char *)extString;
 334     const char *ext = (const char *)extName;
 335     size_t len = strlen( ext );
 336
 337     while (list)
 338     {
 339         while (*list == ' ') list++;
 340         if (!strncmp( list, ext, len ) && (!list[len] || list[len] == ' ')) return GLU_TRUE;
 341         list = strchr( list, ' ' );
 342     }
 343     return GLU_FALSE;
 344 }