diff options
Diffstat (limited to 'src/glu/mesa/nurbs.c')
| -rw-r--r-- | src/glu/mesa/nurbs.c | 986 |
1 files changed, 477 insertions, 509 deletions
diff --git a/src/glu/mesa/nurbs.c b/src/glu/mesa/nurbs.c index fdf0991651..c93dc3cae6 100644 --- a/src/glu/mesa/nurbs.c +++ b/src/glu/mesa/nurbs.c @@ -1,4 +1,4 @@ -/* $Id: nurbs.c,v 1.3 2000/02/10 17:45:52 brianp Exp $ */ +/* $Id: nurbs.c,v 1.4 2000/07/11 14:11:04 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -26,6 +26,7 @@ * See README2 for more info. */ + #ifdef PC_HEADER #include "all.h" #else @@ -37,414 +38,398 @@ void -call_user_error( GLUnurbsObj *nobj, GLenum error ) +call_user_error(GLUnurbsObj * nobj, GLenum error) { - nobj->error=error; - if(nobj->error_callback != NULL) { - (*(nobj->error_callback))(error); - } - else { - printf("NURBS error %d %s\n", error, (char *) gluErrorString(error) ); - } + nobj->error = error; + if (nobj->error_callback != NULL) { + (*(nobj->error_callback)) (error); + } + else { + printf("NURBS error %d %s\n", error, (char *) gluErrorString(error)); + } } -GLUnurbsObj * GLAPIENTRY gluNewNurbsRenderer( void ) +GLUnurbsObj *GLAPIENTRY +gluNewNurbsRenderer(void) { GLUnurbsObj *n; GLfloat tmp_viewport[4]; - GLint i,j; + GLint i, j; - n = (GLUnurbsObj *) malloc( sizeof(GLUnurbsObj) ); + n = (GLUnurbsObj *) malloc(sizeof(GLUnurbsObj)); if (n) { /* init */ - n->culling=GL_FALSE; - n->nurbs_type=GLU_NURBS_NONE; - n->error=GLU_NO_ERROR; - n->error_callback=NULL; - n->auto_load_matrix=GL_TRUE; - n->sampling_tolerance=50.0; - n->parametric_tolerance=0.5; + n->culling = GL_FALSE; + n->nurbs_type = GLU_NURBS_NONE; + n->error = GLU_NO_ERROR; + n->error_callback = NULL; + n->auto_load_matrix = GL_TRUE; + n->sampling_tolerance = 50.0; + n->parametric_tolerance = 0.5; n->u_step = n->v_step = 100; n->sampling_method = GLU_PATH_LENGTH; - n->display_mode=GLU_FILL; + n->display_mode = GLU_FILL; /* in case the user doesn't supply the sampling matrices */ /* set projection and modelview to identity */ - for(i=0;i<4;i++) - for(j=0;j<4;j++) - if(i==j) - { - n->sampling_matrices.model[i*4+j]=1.0; - n->sampling_matrices.proj[i*4+j]=1.0; - } - else - { - n->sampling_matrices.model[i*4+j]=0.0; - n->sampling_matrices.proj[i*4+j]=0.0; - } + for (i = 0; i < 4; i++) + for (j = 0; j < 4; j++) + if (i == j) { + n->sampling_matrices.model[i * 4 + j] = 1.0; + n->sampling_matrices.proj[i * 4 + j] = 1.0; + } + else { + n->sampling_matrices.model[i * 4 + j] = 0.0; + n->sampling_matrices.proj[i * 4 + j] = 0.0; + } /* and set the viewport sampling matrix to current ciewport */ - glGetFloatv(GL_VIEWPORT,tmp_viewport); - for(i=0;i<4;i++) - n->sampling_matrices.viewport[i]=tmp_viewport[i]; - n->trim=NULL; + glGetFloatv(GL_VIEWPORT, tmp_viewport); + for (i = 0; i < 4; i++) + n->sampling_matrices.viewport[i] = tmp_viewport[i]; + n->trim = NULL; } return n; } -void GLAPIENTRY gluDeleteNurbsRenderer( GLUnurbsObj *nobj ) +void GLAPIENTRY +gluDeleteNurbsRenderer(GLUnurbsObj * nobj) { if (nobj) { - free( nobj ); + free(nobj); } } -void GLAPIENTRY gluLoadSamplingMatrices( GLUnurbsObj *nobj, - const GLfloat modelMatrix[16], - const GLfloat projMatrix[16], - const GLint viewport[4] ) +void GLAPIENTRY +gluLoadSamplingMatrices(GLUnurbsObj * nobj, + const GLfloat modelMatrix[16], + const GLfloat projMatrix[16], const GLint viewport[4]) { - GLint i; - - for(i=0;i<16;i++) - { - nobj->sampling_matrices.model[i]=modelMatrix[i]; - nobj->sampling_matrices.proj[i]=projMatrix[i]; - } - for(i=0;i<4;i++) - nobj->sampling_matrices.viewport[i]=viewport[i]; + GLint i; + + for (i = 0; i < 16; i++) { + nobj->sampling_matrices.model[i] = modelMatrix[i]; + nobj->sampling_matrices.proj[i] = projMatrix[i]; + } + for (i = 0; i < 4; i++) + nobj->sampling_matrices.viewport[i] = viewport[i]; } -void GLAPIENTRY gluNurbsProperty( GLUnurbsObj *nobj, GLenum property, GLfloat value ) +void GLAPIENTRY +gluNurbsProperty(GLUnurbsObj * nobj, GLenum property, GLfloat value) { GLenum val; switch (property) { - case GLU_SAMPLING_TOLERANCE: - if(value <= 0.0) - { - call_user_error(nobj,GLU_INVALID_VALUE); - return; - } - nobj->sampling_tolerance=value; - break; - case GLU_PARAMETRIC_TOLERANCE: - if(value <= 0.0) - { - call_user_error(nobj,GLU_INVALID_VALUE); - return; - } - nobj->parametric_tolerance=value; - break; - case GLU_U_STEP: - if(value <= 0.0) - { - call_user_error(nobj,GLU_INVALID_VALUE); - return; - } - nobj->u_step=(GLint)value; - break; - case GLU_V_STEP: - if(value <= 0.0) - { - call_user_error(nobj,GLU_INVALID_VALUE); - return; - } - nobj->v_step=(GLint)value; - break; - case GLU_SAMPLING_METHOD: - val = (GLenum)value; - if(val!=GLU_PATH_LENGTH && val!=GLU_PARAMETRIC_ERROR && val!=GLU_DOMAIN_DISTANCE) - { - call_user_error(nobj,GLU_INVALID_ENUM); - return; - } - nobj->sampling_method=val; - break; - case GLU_DISPLAY_MODE: - val=(GLenum)value; - if(val!=GLU_FILL && val!=GLU_OUTLINE_POLYGON && val!=GLU_OUTLINE_PATCH) - { - call_user_error(nobj,GLU_INVALID_ENUM); - return; - } - if(nobj->nurbs_type==GLU_NURBS_CURVE) - { - call_user_error(nobj,GLU_NURBS_ERROR26); - return; - } - nobj->display_mode=val; -if(val==GLU_OUTLINE_PATCH) - fprintf(stderr,"NURBS, for the moment, can display only in POLYGON mode\n"); - break; - case GLU_CULLING: - val=(GLenum)value; - if(val!=GL_TRUE && val!=GL_FALSE) - { - call_user_error(nobj,GLU_INVALID_ENUM); - return; - } - nobj->culling = (GLboolean) value; - break; - case GLU_AUTO_LOAD_MATRIX: - val=(GLenum)value; - if(val!=GL_TRUE && val!=GL_FALSE) - { - call_user_error(nobj,GLU_INVALID_ENUM); - return; - } - nobj->auto_load_matrix = (GLboolean) value; - break; - default: - call_user_error(nobj,GLU_NURBS_ERROR26); + case GLU_SAMPLING_TOLERANCE: + if (value <= 0.0) { + call_user_error(nobj, GLU_INVALID_VALUE); + return; + } + nobj->sampling_tolerance = value; + break; + case GLU_PARAMETRIC_TOLERANCE: + if (value <= 0.0) { + call_user_error(nobj, GLU_INVALID_VALUE); + return; + } + nobj->parametric_tolerance = value; + break; + case GLU_U_STEP: + if (value <= 0.0) { + call_user_error(nobj, GLU_INVALID_VALUE); + return; + } + nobj->u_step = (GLint) value; + break; + case GLU_V_STEP: + if (value <= 0.0) { + call_user_error(nobj, GLU_INVALID_VALUE); + return; + } + nobj->v_step = (GLint) value; + break; + case GLU_SAMPLING_METHOD: + val = (GLenum) value; + if (val != GLU_PATH_LENGTH && val != GLU_PARAMETRIC_ERROR + && val != GLU_DOMAIN_DISTANCE) { + call_user_error(nobj, GLU_INVALID_ENUM); + return; + } + nobj->sampling_method = val; + break; + case GLU_DISPLAY_MODE: + val = (GLenum) value; + if (val != GLU_FILL && val != GLU_OUTLINE_POLYGON + && val != GLU_OUTLINE_PATCH) { + call_user_error(nobj, GLU_INVALID_ENUM); + return; + } + if (nobj->nurbs_type == GLU_NURBS_CURVE) { + call_user_error(nobj, GLU_NURBS_ERROR26); + return; + } + nobj->display_mode = val; + if (val == GLU_OUTLINE_PATCH) + fprintf(stderr, + "NURBS, for the moment, can display only in POLYGON mode\n"); + break; + case GLU_CULLING: + val = (GLenum) value; + if (val != GL_TRUE && val != GL_FALSE) { + call_user_error(nobj, GLU_INVALID_ENUM); + return; + } + nobj->culling = (GLboolean) value; + break; + case GLU_AUTO_LOAD_MATRIX: + val = (GLenum) value; + if (val != GL_TRUE && val != GL_FALSE) { + call_user_error(nobj, GLU_INVALID_ENUM); + return; + } + nobj->auto_load_matrix = (GLboolean) value; + break; + default: + call_user_error(nobj, GLU_NURBS_ERROR26); } } -void GLAPIENTRY gluGetNurbsProperty( GLUnurbsObj *nobj, GLenum property, GLfloat *value ) +void GLAPIENTRY +gluGetNurbsProperty(GLUnurbsObj * nobj, GLenum property, GLfloat * value) { switch (property) { - case GLU_SAMPLING_TOLERANCE: - *value = nobj->sampling_tolerance; - break; - case GLU_DISPLAY_MODE: - *value = (GLfloat) (GLint) nobj->display_mode; - break; - case GLU_CULLING: - *value = nobj->culling ? 1.0 : 0.0; - break; - case GLU_AUTO_LOAD_MATRIX: - *value = nobj->auto_load_matrix ? 1.0 : 0.0; - break; - default: - call_user_error(nobj,GLU_INVALID_ENUM); + case GLU_SAMPLING_TOLERANCE: + *value = nobj->sampling_tolerance; + break; + case GLU_DISPLAY_MODE: + *value = (GLfloat) (GLint) nobj->display_mode; + break; + case GLU_CULLING: + *value = nobj->culling ? 1.0 : 0.0; + break; + case GLU_AUTO_LOAD_MATRIX: + *value = nobj->auto_load_matrix ? 1.0 : 0.0; + break; + default: + call_user_error(nobj, GLU_INVALID_ENUM); } } -void GLAPIENTRY gluBeginCurve( GLUnurbsObj *nobj ) +void GLAPIENTRY +gluBeginCurve(GLUnurbsObj * nobj) { - if(nobj->nurbs_type==GLU_NURBS_CURVE) - { - call_user_error(nobj,GLU_NURBS_ERROR6); - return; - } - nobj->nurbs_type=GLU_NURBS_CURVE; - nobj->curve.geom.type=GLU_INVALID_ENUM; - nobj->curve.color.type=GLU_INVALID_ENUM; - nobj->curve.texture.type=GLU_INVALID_ENUM; - nobj->curve.normal.type=GLU_INVALID_ENUM; + if (nobj->nurbs_type == GLU_NURBS_CURVE) { + call_user_error(nobj, GLU_NURBS_ERROR6); + return; + } + nobj->nurbs_type = GLU_NURBS_CURVE; + nobj->curve.geom.type = GLU_INVALID_ENUM; + nobj->curve.color.type = GLU_INVALID_ENUM; + nobj->curve.texture.type = GLU_INVALID_ENUM; + nobj->curve.normal.type = GLU_INVALID_ENUM; } -void GLAPIENTRY gluEndCurve( GLUnurbsObj * nobj ) +void GLAPIENTRY +gluEndCurve(GLUnurbsObj * nobj) { - if(nobj->nurbs_type==GLU_NURBS_NONE) - { - call_user_error(nobj,GLU_NURBS_ERROR7); - return; - } - if(nobj->curve.geom.type==GLU_INVALID_ENUM) - { - call_user_error(nobj,GLU_NURBS_ERROR8); - nobj->nurbs_type=GLU_NURBS_NONE; - return; - } - glPushAttrib( (GLbitfield) (GL_EVAL_BIT | GL_ENABLE_BIT) ); - glDisable(GL_MAP1_VERTEX_3); - glDisable(GL_MAP1_VERTEX_4); - glDisable(GL_MAP1_INDEX); - glDisable(GL_MAP1_COLOR_4); - glDisable(GL_MAP1_NORMAL); - glDisable(GL_MAP1_TEXTURE_COORD_1); - glDisable(GL_MAP1_TEXTURE_COORD_2); - glDisable(GL_MAP1_TEXTURE_COORD_3); - glDisable(GL_MAP1_TEXTURE_COORD_4); - glDisable(GL_MAP2_VERTEX_3); - glDisable(GL_MAP2_VERTEX_4); - glDisable(GL_MAP2_INDEX); - glDisable(GL_MAP2_COLOR_4); - glDisable(GL_MAP2_NORMAL); - glDisable(GL_MAP2_TEXTURE_COORD_1); - glDisable(GL_MAP2_TEXTURE_COORD_2); - glDisable(GL_MAP2_TEXTURE_COORD_3); - glDisable(GL_MAP2_TEXTURE_COORD_4); - do_nurbs_curve(nobj); - glPopAttrib(); - nobj->nurbs_type=GLU_NURBS_NONE; + if (nobj->nurbs_type == GLU_NURBS_NONE) { + call_user_error(nobj, GLU_NURBS_ERROR7); + return; + } + if (nobj->curve.geom.type == GLU_INVALID_ENUM) { + call_user_error(nobj, GLU_NURBS_ERROR8); + nobj->nurbs_type = GLU_NURBS_NONE; + return; + } + glPushAttrib((GLbitfield) (GL_EVAL_BIT | GL_ENABLE_BIT)); + glDisable(GL_MAP1_VERTEX_3); + glDisable(GL_MAP1_VERTEX_4); + glDisable(GL_MAP1_INDEX); + glDisable(GL_MAP1_COLOR_4); + glDisable(GL_MAP1_NORMAL); + glDisable(GL_MAP1_TEXTURE_COORD_1); + glDisable(GL_MAP1_TEXTURE_COORD_2); + glDisable(GL_MAP1_TEXTURE_COORD_3); + glDisable(GL_MAP1_TEXTURE_COORD_4); + glDisable(GL_MAP2_VERTEX_3); + glDisable(GL_MAP2_VERTEX_4); + glDisable(GL_MAP2_INDEX); + glDisable(GL_MAP2_COLOR_4); + glDisable(GL_MAP2_NORMAL); + glDisable(GL_MAP2_TEXTURE_COORD_1); + glDisable(GL_MAP2_TEXTURE_COORD_2); + glDisable(GL_MAP2_TEXTURE_COORD_3); + glDisable(GL_MAP2_TEXTURE_COORD_4); + do_nurbs_curve(nobj); + glPopAttrib(); + nobj->nurbs_type = GLU_NURBS_NONE; } -void GLAPIENTRY gluNurbsCurve( GLUnurbsObj *nobj, GLint nknots, GLfloat *knot, - GLint stride, GLfloat *ctlarray, GLint order, GLenum type ) +void GLAPIENTRY +gluNurbsCurve(GLUnurbsObj * nobj, GLint nknots, GLfloat * knot, + GLint stride, GLfloat * ctlarray, GLint order, GLenum type) { - if(nobj->nurbs_type==GLU_NURBS_TRIM) - { + if (nobj->nurbs_type == GLU_NURBS_TRIM) { #if 0 /* TODO: NOT IMPLEMENTED YET */ - nurbs_trim *ptr1; - trim_list *ptr2; - - if(type!=GLU_MAP1_TRIM_2 && type!=GLU_MAP1_TRIM_3) - { - call_user_error(nobj,GLU_NURBS_ERROR14); - return; - } - for(ptr1=nobj->trim;ptr1->next;ptr1=ptr1->next); - if(ptr1->trim_loop) - { - for(ptr2=ptr1->trim_loop;ptr2->next;ptr2=ptr2->next); - if((ptr2->next=(trim_list *)malloc(sizeof(trim_list)))==NULL) - { - call_user_error(nobj,GLU_OUT_OF_MEMORY); - return; - } - ptr2=ptr2->next; - } - else - { - if((ptr2=(trim_list *)malloc(sizeof(trim_list)))==NULL) - { - call_user_error(nobj,GLU_OUT_OF_MEMORY); - return; - } - ptr1->trim_loop=ptr2; - } - ptr2->trim_type=GLU_TRIM_NURBS; - ptr2->curve.nurbs_curve.knot_count=nknots; - ptr2->curve.nurbs_curve.knot=knot; - ptr2->curve.nurbs_curve.stride=stride; - ptr2->curve.nurbs_curve.ctrlarray=ctlarray; - ptr2->curve.nurbs_curve.order=order; - ptr2->curve.nurbs_curve.dim= (type==GLU_MAP1_TRIM_2 ? 2 : 3 ); - ptr2->curve.nurbs_curve.type=type; - ptr2->next=NULL; + nurbs_trim *ptr1; + trim_list *ptr2; + + if (type != GLU_MAP1_TRIM_2 && type != GLU_MAP1_TRIM_3) { + call_user_error(nobj, GLU_NURBS_ERROR14); + return; + } + for (ptr1 = nobj->trim; ptr1->next; ptr1 = ptr1->next); + if (ptr1->trim_loop) { + for (ptr2 = ptr1->trim_loop; ptr2->next; ptr2 = ptr2->next); + if ((ptr2->next = (trim_list *) malloc(sizeof(trim_list))) == NULL) { + call_user_error(nobj, GLU_OUT_OF_MEMORY); + return; + } + ptr2 = ptr2->next; + } + else { + if ((ptr2 = (trim_list *) malloc(sizeof(trim_list))) == NULL) { + call_user_error(nobj, GLU_OUT_OF_MEMORY); + return; + } + ptr1->trim_loop = ptr2; + } + ptr2->trim_type = GLU_TRIM_NURBS; + ptr2->curve.nurbs_curve.knot_count = nknots; + ptr2->curve.nurbs_curve.knot = knot; + ptr2->curve.nurbs_curve.stride = stride; + ptr2->curve.nurbs_curve.ctrlarray = ctlarray; + ptr2->curve.nurbs_curve.order = order; + ptr2->curve.nurbs_curve.dim = (type == GLU_MAP1_TRIM_2 ? 2 : 3); + ptr2->curve.nurbs_curve.type = type; + ptr2->next = NULL; #endif - } - else - { - if(type==GLU_MAP1_TRIM_2 || type==GLU_MAP1_TRIM_3) - { - call_user_error(nobj,GLU_NURBS_ERROR22); - return; - } - if(nobj->nurbs_type!=GLU_NURBS_CURVE) - { - call_user_error(nobj,GLU_NURBS_ERROR10); - return; - } - switch(type) - { - case GL_MAP1_VERTEX_3: - case GL_MAP1_VERTEX_4: - if(nobj->curve.geom.type!=GLU_INVALID_ENUM) - { - call_user_error(nobj,GLU_NURBS_ERROR8); - return; - } - nobj->curve.geom.type=type; - nobj->curve.geom.knot_count=nknots; - nobj->curve.geom.knot=knot; - nobj->curve.geom.stride=stride; - nobj->curve.geom.ctrlarray=ctlarray; - nobj->curve.geom.order=order; - break; - case GL_MAP1_INDEX: - case GL_MAP1_COLOR_4: - nobj->curve.color.type=type; - nobj->curve.color.knot_count=nknots; - nobj->curve.color.knot=knot; - nobj->curve.color.stride=stride; - nobj->curve.color.ctrlarray=ctlarray; - nobj->curve.color.order=order; - break; - case GL_MAP1_NORMAL: - nobj->curve.normal.type=type; - nobj->curve.normal.knot_count=nknots; - nobj->curve.normal.knot=knot; - nobj->curve.normal.stride=stride; - nobj->curve.normal.ctrlarray=ctlarray; - nobj->curve.normal.order=order; - break; - case GL_MAP1_TEXTURE_COORD_1: - case GL_MAP1_TEXTURE_COORD_2: - case GL_MAP1_TEXTURE_COORD_3: - case GL_MAP1_TEXTURE_COORD_4: - nobj->curve.texture.type=type; - nobj->curve.texture.knot_count=nknots; - nobj->curve.texture.knot=knot; - nobj->curve.texture.stride=stride; - nobj->curve.texture.ctrlarray=ctlarray; - nobj->curve.texture.order=order; - break; - default: - call_user_error(nobj,GLU_INVALID_ENUM); - } - } + } + else { + if (type == GLU_MAP1_TRIM_2 || type == GLU_MAP1_TRIM_3) { + call_user_error(nobj, GLU_NURBS_ERROR22); + return; + } + if (nobj->nurbs_type != GLU_NURBS_CURVE) { + call_user_error(nobj, GLU_NURBS_ERROR10); + return; + } + switch (type) { + case GL_MAP1_VERTEX_3: + case GL_MAP1_VERTEX_4: + if (nobj->curve.geom.type != GLU_INVALID_ENUM) { + call_user_error(nobj, GLU_NURBS_ERROR8); + return; + } + nobj->curve.geom.type = type; + nobj->curve.geom.knot_count = nknots; + nobj->curve.geom.knot = knot; + nobj->curve.geom.stride = stride; + nobj->curve.geom.ctrlarray = ctlarray; + nobj->curve.geom.order = order; + break; + case GL_MAP1_INDEX: + case GL_MAP1_COLOR_4: + nobj->curve.color.type = type; + nobj->curve.color.knot_count = nknots; + nobj->curve.color.knot = knot; + nobj->curve.color.stride = stride; + nobj->curve.color.ctrlarray = ctlarray; + nobj->curve.color.order = order; + break; + case GL_MAP1_NORMAL: + nobj->curve.normal.type = type; + nobj->curve.normal.knot_count = nknots; + nobj->curve.normal.knot = knot; + nobj->curve.normal.stride = stride; + nobj->curve.normal.ctrlarray = ctlarray; + nobj->curve.normal.order = order; + break; + case GL_MAP1_TEXTURE_COORD_1: + case GL_MAP1_TEXTURE_COORD_2: + case GL_MAP1_TEXTURE_COORD_3: + case GL_MAP1_TEXTURE_COORD_4: + nobj->curve.texture.type = type; + nobj->curve.texture.knot_count = nknots; + nobj->curve.texture.knot = knot; + nobj->curve.texture.stride = stride; + nobj->curve.texture.ctrlarray = ctlarray; + nobj->curve.texture.order = order; + break; + default: + call_user_error(nobj, GLU_INVALID_ENUM); + } + } } -void GLAPIENTRY gluBeginSurface( GLUnurbsObj *nobj ) +void GLAPIENTRY +gluBeginSurface(GLUnurbsObj * nobj) { - switch(nobj->nurbs_type) - { - case GLU_NURBS_NONE: - nobj->nurbs_type=GLU_NURBS_SURFACE; - nobj->surface.geom.type=GLU_INVALID_ENUM; - nobj->surface.color.type=GLU_INVALID_ENUM; - nobj->surface.texture.type=GLU_INVALID_ENUM; - nobj->surface.normal.type=GLU_INVALID_ENUM; - break; - case GLU_NURBS_TRIM: - call_user_error(nobj,GLU_NURBS_ERROR16); - break; - case GLU_NURBS_SURFACE: - case GLU_NURBS_NO_TRIM: - case GLU_NURBS_TRIM_DONE: - call_user_error(nobj,GLU_NURBS_ERROR27); - break; - case GLU_NURBS_CURVE: - call_user_error(nobj,GLU_NURBS_ERROR6); - break; - } + switch (nobj->nurbs_type) { + case GLU_NURBS_NONE: + nobj->nurbs_type = GLU_NURBS_SURFACE; + nobj->surface.geom.type = GLU_INVALID_ENUM; + nobj->surface.color.type = GLU_INVALID_ENUM; + nobj->surface.texture.type = GLU_INVALID_ENUM; + nobj->surface.normal.type = GLU_INVALID_ENUM; + break; + case GLU_NURBS_TRIM: + call_user_error(nobj, GLU_NURBS_ERROR16); + break; + case GLU_NURBS_SURFACE: + case GLU_NURBS_NO_TRIM: + case GLU_NURBS_TRIM_DONE: + call_user_error(nobj, GLU_NURBS_ERROR27); + break; + case GLU_NURBS_CURVE: + call_user_error(nobj, GLU_NURBS_ERROR6); + break; + } } -void GLAPIENTRY gluEndSurface( GLUnurbsObj * nobj ) +void GLAPIENTRY +gluEndSurface(GLUnurbsObj * nobj) { - switch(nobj->nurbs_type) - { - case GLU_NURBS_NONE: - call_user_error(nobj,GLU_NURBS_ERROR13); - break; - case GLU_NURBS_TRIM: - call_user_error(nobj,GLU_NURBS_ERROR12); - break; - case GLU_NURBS_TRIM_DONE: + switch (nobj->nurbs_type) { + case GLU_NURBS_NONE: + call_user_error(nobj, GLU_NURBS_ERROR13); + break; + case GLU_NURBS_TRIM: + call_user_error(nobj, GLU_NURBS_ERROR12); + break; + case GLU_NURBS_TRIM_DONE: /* if(nobj->trim->trim_loop==NULL) { call_user_error(nobj,GLU_NURBS_ERROR18); return; }*/ - /* no break - fallthrough */ - case GLU_NURBS_NO_TRIM: - glPushAttrib( (GLbitfield) - (GL_EVAL_BIT | GL_ENABLE_BIT | GL_POLYGON_BIT) ); - glDisable(GL_MAP2_VERTEX_3); - glDisable(GL_MAP2_VERTEX_4); - glDisable(GL_MAP2_INDEX); - glDisable(GL_MAP2_COLOR_4); - glDisable(GL_MAP2_NORMAL); - glDisable(GL_MAP2_TEXTURE_COORD_1); - glDisable(GL_MAP2_TEXTURE_COORD_2); - glDisable(GL_MAP2_TEXTURE_COORD_3); - glDisable(GL_MAP2_TEXTURE_COORD_4); + /* no break - fallthrough */ + case GLU_NURBS_NO_TRIM: + glPushAttrib((GLbitfield) + (GL_EVAL_BIT | GL_ENABLE_BIT | GL_POLYGON_BIT)); + glDisable(GL_MAP2_VERTEX_3); + glDisable(GL_MAP2_VERTEX_4); + glDisable(GL_MAP2_INDEX); + glDisable(GL_MAP2_COLOR_4); + glDisable(GL_MAP2_NORMAL); + glDisable(GL_MAP2_TEXTURE_COORD_1); + glDisable(GL_MAP2_TEXTURE_COORD_2); + glDisable(GL_MAP2_TEXTURE_COORD_3); + glDisable(GL_MAP2_TEXTURE_COORD_4); /* glDisable(GL_MAP1_VERTEX_3); glDisable(GL_MAP1_VERTEX_4); glDisable(GL_MAP1_INDEX); @@ -454,208 +439,191 @@ void GLAPIENTRY gluEndSurface( GLUnurbsObj * nobj ) glDisable(GL_MAP1_TEXTURE_COORD_2); glDisable(GL_MAP1_TEXTURE_COORD_3); glDisable(GL_MAP1_TEXTURE_COORD_4);*/ - do_nurbs_surface(nobj); - glPopAttrib(); - break; - default: - call_user_error(nobj,GLU_NURBS_ERROR8); - } - nobj->nurbs_type=GLU_NURBS_NONE; + do_nurbs_surface(nobj); + glPopAttrib(); + break; + default: + call_user_error(nobj, GLU_NURBS_ERROR8); + } + nobj->nurbs_type = GLU_NURBS_NONE; } -void GLAPIENTRY gluNurbsSurface( GLUnurbsObj *nobj, - GLint sknot_count, GLfloat *sknot, - GLint tknot_count, GLfloat *tknot, - GLint s_stride, GLint t_stride, - GLfloat *ctrlarray, - GLint sorder, GLint torder, - GLenum type ) +void GLAPIENTRY +gluNurbsSurface(GLUnurbsObj * nobj, + GLint sknot_count, GLfloat * sknot, + GLint tknot_count, GLfloat * tknot, + GLint s_stride, GLint t_stride, + GLfloat * ctrlarray, GLint sorder, GLint torder, GLenum type) { - if(nobj->nurbs_type==GLU_NURBS_NO_TRIM || nobj->nurbs_type==GLU_NURBS_TRIM || - nobj->nurbs_type==GLU_NURBS_TRIM_DONE) - { - if(type==GL_MAP2_VERTEX_3 || type==GL_MAP2_VERTEX_4) - { - call_user_error(nobj,GLU_NURBS_ERROR8); - return; - } - } - else - if(nobj->nurbs_type!=GLU_NURBS_SURFACE) - { - call_user_error(nobj,GLU_NURBS_ERROR11); - return; - } - switch(type) - { - case GL_MAP2_VERTEX_3: - case GL_MAP2_VERTEX_4: - nobj->surface.geom.sknot_count=sknot_count; - nobj->surface.geom.sknot=sknot; - nobj->surface.geom.tknot_count=tknot_count; - nobj->surface.geom.tknot=tknot; - nobj->surface.geom.s_stride=s_stride; - nobj->surface.geom.t_stride=t_stride; - nobj->surface.geom.ctrlarray=ctrlarray; - nobj->surface.geom.sorder=sorder; - nobj->surface.geom.torder=torder; - nobj->surface.geom.type=type; - nobj->nurbs_type=GLU_NURBS_NO_TRIM; - break; - case GL_MAP2_INDEX: - case GL_MAP2_COLOR_4: - nobj->surface.color.sknot_count=sknot_count; - nobj->surface.color.sknot=sknot; - nobj->surface.color.tknot_count=tknot_count; - nobj->surface.color.tknot=tknot; - nobj->surface.color.s_stride=s_stride; - nobj->surface.color.t_stride=t_stride; - nobj->surface.color.ctrlarray=ctrlarray; - nobj->surface.color.sorder=sorder; - nobj->surface.color.torder=torder; - nobj->surface.color.type=type; - break; - case GL_MAP2_NORMAL: - nobj->surface.normal.sknot_count=sknot_count; - nobj->surface.normal.sknot=sknot; - nobj->surface.normal.tknot_count=tknot_count; - nobj->surface.normal.tknot=tknot; - nobj->surface.normal.s_stride=s_stride; - nobj->surface.normal.t_stride=t_stride; - nobj->surface.normal.ctrlarray=ctrlarray; - nobj->surface.normal.sorder=sorder; - nobj->surface.normal.torder=torder; - nobj->surface.normal.type=type; - break; - case GL_MAP2_TEXTURE_COORD_1: - case GL_MAP2_TEXTURE_COORD_2: - case GL_MAP2_TEXTURE_COORD_3: - case GL_MAP2_TEXTURE_COORD_4: - nobj->surface.texture.sknot_count=sknot_count; - nobj->surface.texture.sknot=sknot; - nobj->surface.texture.tknot_count=tknot_count; - nobj->surface.texture.tknot=tknot; - nobj->surface.texture.s_stride=s_stride; - nobj->surface.texture.t_stride=t_stride; - nobj->surface.texture.ctrlarray=ctrlarray; - nobj->surface.texture.sorder=sorder; - nobj->surface.texture.torder=torder; - nobj->surface.texture.type=type; - break; - default: - call_user_error(nobj,GLU_INVALID_ENUM); - } + if (nobj->nurbs_type == GLU_NURBS_NO_TRIM + || nobj->nurbs_type == GLU_NURBS_TRIM + || nobj->nurbs_type == GLU_NURBS_TRIM_DONE) { + if (type == GL_MAP2_VERTEX_3 || type == GL_MAP2_VERTEX_4) { + call_user_error(nobj, GLU_NURBS_ERROR8); + return; + } + } + else if (nobj->nurbs_type != GLU_NURBS_SURFACE) { + call_user_error(nobj, GLU_NURBS_ERROR11); + return; + } + switch (type) { + case GL_MAP2_VERTEX_3: + case GL_MAP2_VERTEX_4: + nobj->surface.geom.sknot_count = sknot_count; + nobj->surface.geom.sknot = sknot; + nobj->surface.geom.tknot_count = tknot_count; + nobj->surface.geom.tknot = tknot; + nobj->surface.geom.s_stride = s_stride; + nobj->surface.geom.t_stride = t_stride; + nobj->surface.geom.ctrlarray = ctrlarray; + nobj->surface.geom.sorder = sorder; + nobj->surface.geom.torder = torder; + nobj->surface.geom.type = type; + nobj->nurbs_type = GLU_NURBS_NO_TRIM; + break; + case GL_MAP2_INDEX: + case GL_MAP2_COLOR_4: + nobj->surface.color.sknot_count = sknot_count; + nobj->surface.color.sknot = sknot; + nobj->surface.color.tknot_count = tknot_count; + nobj->surface.color.tknot = tknot; + nobj->surface.color.s_stride = s_stride; + nobj->surface.color.t_stride = t_stride; + nobj->surface.color.ctrlarray = ctrlarray; + nobj->surface.color.sorder = sorder; + nobj->surface.color.torder = torder; + nobj->surface.color.type = type; + break; + case GL_MAP2_NORMAL: + nobj->surface.normal.sknot_count = sknot_count; + nobj->surface.normal.sknot = sknot; + nobj->surface.normal.tknot_count = tknot_count; + nobj->surface.normal.tknot = tknot; + nobj->surface.normal.s_stride = s_stride; + nobj->surface.normal.t_stride = t_stride; + nobj->surface.normal.ctrlarray = ctrlarray; + nobj->surface.normal.sorder = sorder; + nobj->surface.normal.torder = torder; + nobj->surface.normal.type = type; + break; + case GL_MAP2_TEXTURE_COORD_1: + case GL_MAP2_TEXTURE_COORD_2: + case GL_MAP2_TEXTURE_COORD_3: + case GL_MAP2_TEXTURE_COORD_4: + nobj->surface.texture.sknot_count = sknot_count; + nobj->surface.texture.sknot = sknot; + nobj->surface.texture.tknot_count = tknot_count; + nobj->surface.texture.tknot = tknot; + nobj->surface.texture.s_stride = s_stride; + nobj->surface.texture.t_stride = t_stride; + nobj->surface.texture.ctrlarray = ctrlarray; + nobj->surface.texture.sorder = sorder; + nobj->surface.texture.torder = torder; + nobj->surface.texture.type = type; + break; + default: + call_user_error(nobj, GLU_INVALID_ENUM); + } } void GLAPIENTRY -gluNurbsCallback( GLUnurbsObj *nobj, GLenum which, void (GLCALLBACKP fn)()) +gluNurbsCallback(GLUnurbsObj * nobj, GLenum which, void (GLCALLBACK * fn) ()) { - nobj->error_callback = (void(GLCALLBACKPCAST)(GLenum))fn; + nobj->error_callback = (void (GLCALLBACKPCAST) (GLenum)) fn; - if(which!=GLU_ERROR) - call_user_error(nobj,GLU_INVALID_ENUM); + if (which != GLU_ERROR) + call_user_error(nobj, GLU_INVALID_ENUM); } void GLAPIENTRY -gluBeginTrim( GLUnurbsObj *nobj ) +gluBeginTrim(GLUnurbsObj * nobj) { #if 0 - nurbs_trim *ptr; + nurbs_trim *ptr; #endif - if(nobj->nurbs_type!=GLU_NURBS_TRIM_DONE) - if(nobj->nurbs_type!=GLU_NURBS_NO_TRIM) - { - call_user_error(nobj,GLU_NURBS_ERROR15); - return; - } - nobj->nurbs_type=GLU_NURBS_TRIM; -fprintf(stderr,"NURBS - trimming not supported yet\n"); + if (nobj->nurbs_type != GLU_NURBS_TRIM_DONE) + if (nobj->nurbs_type != GLU_NURBS_NO_TRIM) { + call_user_error(nobj, GLU_NURBS_ERROR15); + return; + } + nobj->nurbs_type = GLU_NURBS_TRIM; + fprintf(stderr, "NURBS - trimming not supported yet\n"); #if 0 - if((ptr=(nurbs_trim *)malloc(sizeof(nurbs_trim)))==NULL) - { - call_user_error(nobj,GLU_OUT_OF_MEMORY); - return; - } - if(nobj->trim) - { - nurbs_trim *tmp_ptr; - - for(tmp_ptr=nobj->trim;tmp_ptr->next;tmp_ptr=tmp_ptr->next); - tmp_ptr->next=ptr; - } - else - nobj->trim=ptr; - ptr->trim_loop=NULL; - ptr->segments=NULL; - ptr->next=NULL; + if ((ptr = (nurbs_trim *) malloc(sizeof(nurbs_trim))) == NULL) { + call_user_error(nobj, GLU_OUT_OF_MEMORY); + return; + } + if (nobj->trim) { + nurbs_trim *tmp_ptr; + + for (tmp_ptr = nobj->trim; tmp_ptr->next; tmp_ptr = tmp_ptr->next); + tmp_ptr->next = ptr; + } + else + nobj->trim = ptr; + ptr->trim_loop = NULL; + ptr->segments = NULL; + ptr->next = NULL; #endif } void GLAPIENTRY -gluPwlCurve( GLUnurbsObj *nobj, GLint count, GLfloat *array, GLint stride, - GLenum type) +gluPwlCurve(GLUnurbsObj * nobj, GLint count, GLfloat * array, GLint stride, + GLenum type) { #if 0 - nurbs_trim *ptr1; - trim_list *ptr2; + nurbs_trim *ptr1; + trim_list *ptr2; #endif - if(nobj->nurbs_type==GLU_NURBS_CURVE) - { - call_user_error(nobj,GLU_NURBS_ERROR9); - return; - } - if(nobj->nurbs_type==GLU_NURBS_NONE) - { - call_user_error(nobj,GLU_NURBS_ERROR19); - return; - } - if(type!=GLU_MAP1_TRIM_2 && type!=GLU_MAP1_TRIM_3) - { - call_user_error(nobj,GLU_NURBS_ERROR14); - return; - } + if (nobj->nurbs_type == GLU_NURBS_CURVE) { + call_user_error(nobj, GLU_NURBS_ERROR9); + return; + } + if (nobj->nurbs_type == GLU_NURBS_NONE) { + call_user_error(nobj, GLU_NURBS_ERROR19); + return; + } + if (type != GLU_MAP1_TRIM_2 && type != GLU_MAP1_TRIM_3) { + call_user_error(nobj, GLU_NURBS_ERROR14); + return; + } #if 0 - for(ptr1=nobj->trim;ptr1->next;ptr1=ptr1->next); - if(ptr1->trim_loop) - { - for(ptr2=ptr1->trim_loop;ptr2->next;ptr2=ptr2->next); - if((ptr2->next=(trim_list *)malloc(sizeof(trim_list)))==NULL) - { - call_user_error(nobj,GLU_OUT_OF_MEMORY); - return; - } - ptr2=ptr2->next; - } - else - { - if((ptr2=(trim_list *)malloc(sizeof(trim_list)))==NULL) - { - call_user_error(nobj,GLU_OUT_OF_MEMORY); - return; - } - ptr1->trim_loop=ptr2; - } - ptr2->trim_type=GLU_TRIM_PWL; - ptr2->curve.pwl_curve.pt_count=count; - ptr2->curve.pwl_curve.ctrlarray=array; - ptr2->curve.pwl_curve.stride=stride; - ptr2->curve.pwl_curve.dim= (type==GLU_MAP1_TRIM_2 ? 2 : 3 ); - ptr2->curve.pwl_curve.type=type; - ptr2->next=NULL; + for (ptr1 = nobj->trim; ptr1->next; ptr1 = ptr1->next); + if (ptr1->trim_loop) { + for (ptr2 = ptr1->trim_loop; ptr2->next; ptr2 = ptr2->next); + if ((ptr2->next = (trim_list *) malloc(sizeof(trim_list))) == NULL) { + call_user_error(nobj, GLU_OUT_OF_MEMORY); + return; + } + ptr2 = ptr2->next; + } + else { + if ((ptr2 = (trim_list *) malloc(sizeof(trim_list))) == NULL) { + call_user_error(nobj, GLU_OUT_OF_MEMORY); + return; + } + ptr1->trim_loop = ptr2; + } + ptr2->trim_type = GLU_TRIM_PWL; + ptr2->curve.pwl_curve.pt_count = count; + ptr2->curve.pwl_curve.ctrlarray = array; + ptr2->curve.pwl_curve.stride = stride; + ptr2->curve.pwl_curve.dim = (type == GLU_MAP1_TRIM_2 ? 2 : 3); + ptr2->curve.pwl_curve.type = type; + ptr2->next = NULL; #endif } void GLAPIENTRY -gluEndTrim( GLUnurbsObj *nobj ) +gluEndTrim(GLUnurbsObj * nobj) { - if(nobj->nurbs_type!=GLU_NURBS_TRIM) - { - call_user_error(nobj,GLU_NURBS_ERROR17); - return; - } - nobj->nurbs_type=GLU_NURBS_TRIM_DONE; + if (nobj->nurbs_type != GLU_NURBS_TRIM) { + call_user_error(nobj, GLU_NURBS_ERROR17); + return; + } + nobj->nurbs_type = GLU_NURBS_TRIM_DONE; } - |