ReactOS 0.4.15-dev-7712-gbbbcd8e
render.h File Reference
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Functions

void __gl_renderMesh (GLUtesselator *tess, GLUmesh *mesh)
 
void __gl_renderBoundary (GLUtesselator *tess, GLUmesh *mesh)
 
GLboolean __gl_renderCache (GLUtesselator *tess)
 

Function Documentation

◆ __gl_renderBoundary()

void __gl_renderBoundary ( GLUtesselator tess,
GLUmesh mesh 
)

Definition at line 339 of file render.c.

340{
341 GLUface *f;
342 GLUhalfEdge *e;
343
344 for( f = mesh->fHead.next; f != &mesh->fHead; f = f->next ) {
345 if( f->inside ) {
347 e = f->anEdge;
348 do {
349 CALL_VERTEX_OR_VERTEX_DATA( e->Org->data );
350 e = e->Lnext;
351 } while( e != f->anEdge );
353 }
354 }
355}
#define GL_LINE_LOOP
Definition: gl.h:192
GLfloat f
Definition: glext.h:7540
#define e
Definition: ke_i.h:82
#define f
Definition: ke_i.h:83
Definition: mesh.h:126
Definition: mesh.c:198
#define CALL_BEGIN_OR_BEGIN_DATA(a)
Definition: tess.h:135
#define CALL_VERTEX_OR_VERTEX_DATA(a)
Definition: tess.h:140
#define CALL_END_OR_END_DATA()
Definition: tess.h:150

Referenced by gluTessEndPolygon().

◆ __gl_renderCache()

GLboolean __gl_renderCache ( GLUtesselator tess)

Definition at line 441 of file render.c.

442{
443 CachedVertex *v0 = tess->cache;
444 CachedVertex *vn = v0 + tess->cacheCount;
445 CachedVertex *vc;
446 GLdouble norm[3];
447 int sign;
448
449 if( tess->cacheCount < 3 ) {
450 /* Degenerate contour -- no output */
451 return TRUE;
452 }
453
454 norm[0] = tess->normal[0];
455 norm[1] = tess->normal[1];
456 norm[2] = tess->normal[2];
457 if( norm[0] == 0 && norm[1] == 0 && norm[2] == 0 ) {
458 ComputeNormal( tess, norm, FALSE );
459 }
460
461 sign = ComputeNormal( tess, norm, TRUE );
462 if( sign == SIGN_INCONSISTENT ) {
463 /* Fan triangles did not have a consistent orientation */
464 return FALSE;
465 }
466 if( sign == 0 ) {
467 /* All triangles were degenerate */
468 return TRUE;
469 }
470
471 /* Make sure we do the right thing for each winding rule */
472 switch( tess->windingRule ) {
475 break;
477 if( sign < 0 ) return TRUE;
478 break;
480 if( sign > 0 ) return TRUE;
481 break;
483 return TRUE;
484 }
485
487 : (tess->cacheCount > 3) ? GL_TRIANGLE_FAN
488 : GL_TRIANGLES );
489
491 if( sign > 0 ) {
492 for( vc = v0+1; vc < vn; ++vc ) {
494 }
495 } else {
496 for( vc = vn-1; vc > v0; --vc ) {
498 }
499 }
501 return TRUE;
502}
_Tp _STLP_CALL norm(const complex< _Tp > &__z)
Definition: _complex.h:741
#define GLU_TESS_WINDING_NONZERO
Definition: glu.h:261
#define GLU_TESS_WINDING_POSITIVE
Definition: glu.h:262
#define GLU_TESS_WINDING_NEGATIVE
Definition: glu.h:263
#define GLU_TESS_WINDING_ODD
Definition: glu.h:260
#define GLU_TESS_WINDING_ABS_GEQ_TWO
Definition: glu.h:264
#define SIGN_INCONSISTENT
Definition: render.c:360
#define TRUE
Definition: render.c:43
#define FALSE
Definition: render.c:46
static int ComputeNormal(GLUtesselator *tess, GLdouble norm[3], int check)
Definition: render.c:362
#define GL_TRIANGLE_FAN
Definition: gl.h:196
double GLdouble
Definition: gl.h:163
#define GL_TRIANGLES
Definition: gl.h:194
GLfloat v0
Definition: glext.h:6061
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint vn
Definition: glfuncs.h:238
#define sign(x)
Definition: mapdesc.cc:613
void * data
Definition: tess.h:56
int cacheCount
Definition: tess.h:107
GLdouble normal[3]
Definition: tess.h:73
GLboolean boundaryOnly
Definition: tess.h:93
GLenum windingRule
Definition: tess.h:80
CachedVertex cache[TESS_MAX_CACHE]
Definition: tess.h:108

Referenced by gluTessEndPolygon().

◆ __gl_renderMesh()

void __gl_renderMesh ( GLUtesselator tess,
GLUmesh mesh 
)

Definition at line 82 of file render.c.

83{
84 GLUface *f;
85
86 /* Make a list of separate triangles so we can render them all at once */
87 tess->lonelyTriList = NULL;
88
89 for( f = mesh->fHead.next; f != &mesh->fHead; f = f->next ) {
90 f->marked = FALSE;
91 }
92 for( f = mesh->fHead.next; f != &mesh->fHead; f = f->next ) {
93
94 /* We examine all faces in an arbitrary order. Whenever we find
95 * an unprocessed face F, we output a group of faces including F
96 * whose size is maximum.
97 */
98 if( f->inside && ! f->marked ) {
100 assert( f->marked );
101 }
102 }
103 if( tess->lonelyTriList != NULL ) {
105 tess->lonelyTriList = NULL;
106 }
107}
#define NULL
Definition: types.h:112
static void RenderMaximumFaceGroup(GLUtesselator *tess, GLUface *fOrig)
Definition: render.c:110
static void RenderLonelyTriangles(GLUtesselator *tess, GLUface *head)
Definition: render.c:248
#define assert(x)
Definition: debug.h:53
GLUface * lonelyTriList
Definition: tess.h:94

Referenced by gluTessEndPolygon().