/* * Pure Data Packet module. * Copyright (c) by Tom Schouten * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include #include "pdp_opengl.h" #include "pdp_3dp_base.h" /* PD OBJECT */ typedef struct _pdp_3d_view { t_pdp_3dp_base x_base; t_pdp_dpd_commandfactory x_clist; float x_p0; float x_p1; float x_p2; float x_p3; t_pdp_method x_method; int x_inlets; } t_pdp_3d_view; /* COMMAND OBJECT */ typedef struct _viewcommand { t_pdp_dpd_command x_head; // viewcommand base t_pdp_3d_view *x_x; // command owner int x_context_packet; float x_p0; float x_p1; float x_p2; float x_p3; } t_viewcommand; /* COMMAND OBJECT METHODS */ /* rotate about the negative z axis */ static void view_rot2d(t_viewcommand *x) {glRotatef(x->x_p0, 0, 0, -1);} /* rotate about the positive x,y,z axis */ static void view_rotx(t_viewcommand *x) {glRotatef(x->x_p0, 1, 0, 0);} static void view_roty(t_viewcommand *x) {glRotatef(x->x_p0, 0, 1, 0);} static void view_rotz(t_viewcommand *x) {glRotatef(x->x_p0, 0, 0, 1);} static void view_rota(t_viewcommand *x) {glRotatef(x->x_p3, x->x_p0, x->x_p1, x->x_p2);} /* translate along an axis */ static void view_transx(t_viewcommand *x) {glTranslatef(x->x_p0, 0, 0);} static void view_transy(t_viewcommand *x) {glTranslatef(0, x->x_p0, 0);} static void view_transz(t_viewcommand *x) {glTranslatef(0, 0, x->x_p0);} static void view_transxyz(t_viewcommand *x) {glTranslatef(x->x_p0, x->x_p1, x->x_p2);} /* rotate about the positive x,y,z axis */ static void view_scalex(t_viewcommand *x) {glScalef(x->x_p0, 1, 1);} static void view_scaley(t_viewcommand *x) {glScalef(1, x->x_p0, 1);} static void view_scalez(t_viewcommand *x) {glScalef(1, 1, x->x_p0);} static void view_scale(t_viewcommand *x) {glScalef(x->x_p0, x->x_p0, x->x_p0);} /* specials */ static void view_reset_3d(t_viewcommand *x) {pdp_packet_3Dcontext_setup_3d_context(x->x_context_packet);} static void view_scale_aspect(t_viewcommand *x) {glScalef(pdp_packet_3Dcontext_subaspect(x->x_context_packet),1,1);} /* process command */ static void view_process(t_viewcommand *x) { int p = x->x_context_packet; /* check if it's a valid context buffer we can draw in */ if (pdp_packet_3Dcontext_isvalid(p)){ /* setup rendering context */ pdp_packet_3Dcontext_set_rendering_context(p); /* call the generating method */ if (x->x_x->x_method) (*x->x_x->x_method)(x); } /* suicide */ pdp_dpd_command_suicide(x); } /* command object factory method */ void *pdp_3d_view_get_command_object(t_pdp_3d_view *x) { t_viewcommand *c = (t_viewcommand *)pdp_dpd_commandfactory_get_new_command(&x->x_clist); c->x_p0 = x->x_p0; c->x_p1 = x->x_p1; c->x_p2 = x->x_p2; c->x_p3 = x->x_p3; c->x_context_packet = pdp_3dp_base_get_context_packet(x); c->x_x = x; return c; } /* PD OBJECT METHODS */ static void pdp_3d_view_p0(t_pdp_3d_view *x, t_floatarg f){x->x_p0 = f;} static void pdp_3d_view_p1(t_pdp_3d_view *x, t_floatarg f){x->x_p1 = f;} static void pdp_3d_view_p2(t_pdp_3d_view *x, t_floatarg f){x->x_p2 = f;} static void pdp_3d_view_p3(t_pdp_3d_view *x, t_floatarg f){x->x_p3 = f;} t_class *pdp_3d_view_class; void pdp_3d_view_free(t_pdp_3d_view *x) { pdp_dpd_commandfactory_free(&x->x_clist); pdp_3dp_base_free(x); } void *pdp_3d_view_new(t_symbol *s, t_floatarg p0, t_floatarg p1, t_floatarg p2, t_floatarg p3) { t_pdp_3d_view *x = (t_pdp_3d_view *)pd_new(pdp_3d_view_class); char param[] = "p0"; int i; /* super init */ pdp_3dp_base_init(x); x->x_p0 = p0; x->x_p1 = p1; x->x_p2 = p2; x->x_p3 = p3; /* find out which transform we need to apply */ if (s == gensym("rot2d")) {x->x_method = (t_pdp_method)view_rot2d; x->x_inlets = 1;} else if (s == gensym("rotx")) {x->x_method = (t_pdp_method)view_rotx; x->x_inlets = 1;} else if (s == gensym("roty")) {x->x_method = (t_pdp_method)view_roty; x->x_inlets = 1;} else if (s == gensym("rotz")) {x->x_method = (t_pdp_method)view_rotz; x->x_inlets = 1;} else if (s == gensym("rota")) {x->x_method = (t_pdp_method)view_rota; x->x_inlets = 4;} else if (s == gensym("transx")) {x->x_method = (t_pdp_method)view_transx; x->x_inlets = 1;} else if (s == gensym("transy")) {x->x_method = (t_pdp_method)view_transy; x->x_inlets = 1;} else if (s == gensym("transz")) {x->x_method = (t_pdp_method)view_transz; x->x_inlets = 1;} else if (s == gensym("transxyz")) {x->x_method = (t_pdp_method)view_transxyz; x->x_inlets = 3;} else if (s == gensym("scalex")) {x->x_method = (t_pdp_method)view_scalex; x->x_inlets = 1;} else if (s == gensym("scaley")) {x->x_method = (t_pdp_method)view_scaley; x->x_inlets = 1;} else if (s == gensym("scalez")) {x->x_method = (t_pdp_method)view_scalez; x->x_inlets = 1;} else if (s == gensym("scale")) {x->x_method = (t_pdp_method)view_scale; x->x_inlets = 1;} else if (s == gensym("scale_aspect")) {x->x_method = (t_pdp_method)view_scale_aspect; x->x_inlets = 0;} else if (s == gensym("reset")) {x->x_method = (t_pdp_method)view_reset_3d; x->x_inlets = 0;} else { post("pdp_view: view transformation %s not found", s->s_name); x->x_method = 0; x->x_inlets = 0; } /* create additional inlets */ for(i=0; ix_inlets; i++){ pdp_base_add_gen_inlet(x, gensym("float"), gensym(param)); param[1]++; } /* create dpd outlet */ pdp_3dp_base_add_outlet(x, (t_pdp_method)view_process, 0); /* init command factory */ pdp_dpd_commandfactory_init(&x->x_clist, sizeof(t_viewcommand)); /* register command factory method */ pdp_dpd_base_register_command_factory_method(x, (t_pdp_newmethod)pdp_3d_view_get_command_object); return (void *)x; } #ifdef __cplusplus extern "C" { #endif void pdp_3d_view_setup(void) { pdp_3d_view_class = class_new(gensym("3dp_view"), (t_newmethod)pdp_3d_view_new, (t_method)pdp_3d_view_free, sizeof(t_pdp_3d_view), 0, A_SYMBOL, A_DEFFLOAT,A_DEFFLOAT,A_DEFFLOAT,A_DEFFLOAT, A_NULL); pdp_3dp_base_setup(pdp_3d_view_class); class_addmethod(pdp_3d_view_class, (t_method)pdp_3d_view_p0, gensym("p0"), A_DEFFLOAT, A_NULL); class_addmethod(pdp_3d_view_class, (t_method)pdp_3d_view_p1, gensym("p1"), A_DEFFLOAT, A_NULL); class_addmethod(pdp_3d_view_class, (t_method)pdp_3d_view_p2, gensym("p2"), A_DEFFLOAT, A_NULL); class_addmethod(pdp_3d_view_class, (t_method)pdp_3d_view_p3, gensym("p3"), A_DEFFLOAT, A_NULL); } #ifdef __cplusplus } #endif