Update of /cvsroot/pure-data/externals/pdp/opengl/include In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv6756/opengl/include
Added Files: Makefile pdp_3Dcontext.h pdp_3dp_base.h pdp_mesh.h pdp_opengl.h pdp_texture.h Log Message: checking in pdp 0.12.4 from http://zwizwa.fartit.com/pd/pdp/pdp-0.12.4.tar.gz
--- NEW FILE: pdp_mesh.h --- /* * Pure Data Packet module. mesh object specification * Copyright (c) by Tom Schouten pdp@zzz.kotnet.org * * 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. * */
/* a very naive approach to triangular meshes */
#ifndef PDP_MESH_H #define PDP_MESH_H #include "pdp_list.h"
/* VERTEX type a vertex has a coordinate and normal vector a list of triangles it is connected to and a list of vertexes it is connected to (these count as links) */
typedef struct _vertex { float c[3]; // coordinates float n[3]; // normal (or force vector) t_pdp_list *trilist; t_pdp_list *vertlist; } t_vertex;
/* TRIANGLE type: a triangle consist of - 3 vertices - 3 optional median vertices (subdivision intermediates) */ typedef struct _triangle { t_vertex *v[3]; // vertices t_vertex *m[3]; // median vertices float n[3]; //triangle normal } t_triangle;
/* MESH type: a mesh is a list of vertices and a list of triangles (connections) */ typedef struct _mesh { t_pdp_list *triangles; t_pdp_list *vertices; int normal_type; int refine_type; } t_mesh;
/* object configuratie */ #define MESH_NORMAL_SPHERE 1 // normal = origin -> vertex #define MESH_NORMAL_PRISM 2 // normal = center of gravity of prism base -> vertex #define MESH_NORMAL_RANDOM 3 // normal = random vector #define MESH_NORMAL_AVERAGE 4 // normal = average of surrounding triangles
/* refinement method */ #define MESH_REFINE_THREE 1 // triangle -> 3 triangles connecting center of gravity #define MESH_REFINE_FOUR 2 // triangle -> 4 triangles connecting link medians
// vector utility stuff
// fixed size iterators for the lazy #define I3(i) for(i=0; i<3; i++) #define I4(i) for(i=0; i<4; i++)
static inline float _vector3_dot(float *v0, float *v1) { float d; d = v0[0] * v1[0]; d += v0[1] * v1[1]; d += v0[2] * v1[2]; return d; }
static inline void _vector3_scale(float *v, float s) { int k; I3(k) v[k] *= s; }
static inline float _vector3_normalize(float *v) { float length = 0; float scale = 0; int k; length = sqrt(_vector3_dot(v,v)); scale = 1.0f / length; _vector3_scale(v, scale); return length; }
static inline void _vector3_cross(float *a, float *b, float *r) { r[0] = a[1]*b[2] - a[2]*b[1]; r[1] = a[2]*b[0] - a[0]*b[2]; r[2] = a[0]*b[1] - a[1]*b[0]; }
static inline float _rand(void) { long int r = random(); float f; r -= (RAND_MAX >> 1); f = (float)r; f *= (2.0f / (float)RAND_MAX); return f; }
/* VERTEX methods */ void vertex_add_triangle(t_vertex *v, t_triangle *t); void vertex_remove_triangle(t_vertex *v, t_triangle *t); void vertex_add_neighbour(t_vertex *v, t_vertex *neighbour);
/* constructor/destructors are "private" they may only be called by the mesh object to ensure the vector list stays sound (i.e. without duplicates) */ void _vertex_free(t_vertex *v); t_vertex *_vertex_new(float *c, float *n);
void vertex_compute_normal_random(t_vertex *v); void vertex_compute_normal_sphere(t_vertex *v); void vertex_compute_normal_prism(t_vertex *v); float vertex_normalize(t_vertex *v);
/* TRIANGLE methods */
/* create triangle (a connection between 3 vertices): counterclockwize with facing front this method is "private" you can only create triangles as part of a mesh */ t_triangle *_triangle_new(t_vertex *v0, t_vertex *v1, t_vertex *v2);
/* delete a triangle, disconnecting the vertices */ void _triangle_free(t_triangle *t);
/* get triangle that shares the link between v0 and v1 */ t_triangle *triangle_neighbour(t_triangle *t, t_vertex *v0, t_vertex *v1);
/* add a median vector to a link in a triangle note: vertices must be in triangle, or behaviour is undefined */ void triangle_add_median(t_triangle *t, t_vertex *v0, t_vertex *v1, t_vertex *median);
/* MESH methods */
/* add and remove methods for vertices and triangles */ t_vertex *mesh_vertex_add(t_mesh *m, float *c, float *n); void mesh_vertex_remove(t_mesh *m, t_vertex *v); t_triangle *mesh_triangle_add(t_mesh *m, t_vertex *v0, t_vertex *v1, t_vertex *v2); void mesh_triangle_remove(t_mesh *m, t_triangle *t);
/* calculate normals */ void mesh_calculate_normals(t_mesh *m);
/* split a triangle in 4, using the intermedia median vertex storage */ void mesh_split_four(t_mesh *m, t_triangle *old_t);
/* split a triangle in 3 */ void mesh_split_three(t_mesh *m, t_triangle *old_t);
void mesh_split_all_four(t_mesh *m);
void mesh_split_all_three(t_mesh *m);
void mesh_split_random_three(t_mesh *m);
void mesh_free(t_mesh *m);
t_mesh *_mesh_new(void);
/* new tetra */ t_mesh *mesh_new_tetra(void);
void _mesh_relax_compute_resultant_spring(t_mesh *m, float *center, float d0, float r0); void _mesh_relax_apply_force(t_mesh *m, float k); void mesh_compute_center(t_mesh *m, float *c); void mesh_translate(t_mesh *m, float *c);
/* relax a mesh (move toward equal link length) */ void mesh_relax(t_mesh *m, float step, float d0, float r0);
/* print some debug information */ void mesh_debug(t_mesh *m);
#endif
--- NEW FILE: Makefile --- all:
clean: rm -rf *~
--- NEW FILE: pdp_3dp_base.h --- #include "pdp_opengl.h" #include "pdp_dpd_base.h"
typedef struct _pdp_3dp_base { t_pdp_dpd_base b_base;
} t_pdp_3dp_base;
/* destructor */ void pdp_3dp_base_free(void *x);
/* init method */ void pdp_3dp_base_init(void *x);
/* class setup method */ void pdp_3dp_base_setup(t_class *class);
/* base class methods */ #define pdp_3dp_base_get_context_packet pdp_dpd_base_get_context_packet #define pdp_3dp_base_set_context_packet pdp_dpd_base_set_context_packet #define pdp_3dp_base_add_outlet pdp_dpd_base_add_outlet #define pdp_3dp_base_add_cleanup pdp_dpd_base_add_cleanup #define pdp_3dp_base_add_inspect pdp_dpd_base_add_inspect #define pdp_3dp_base_disable_active_inlet pdp_dpd_base_disable_active_inlet #define pdp_3dp_base_move_context_packet pdp_dpd_base_move_context_packet #define pdp_3dp_base_bang pdp_dpd_base_bang #define pdp_3dp_base_get_queue pdp_dpd_base_get_queue #define pdp_3dp_base_enable_outlet pdp_dpd_base_enable_outlet #define pdp_3dp_base_register_complete_notify pdp_dpd_base_register_complete_notify #define pdp_3dp_base_register_get_command_object pdp_dpd_base_register_get_command_object #define pdp_3dp_base_queue_wait pdp_dpd_base_queue_wait #define pdp_3dp_base_queue_command pdp_dpd_base_queue_command
--- NEW FILE: pdp_opengl.h --- /* * OpenGL Extension Module for pdp - Main header file * Copyright (c) by Tom Schouten pdp@zzz.kotnet.org * * 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. * */
#ifndef PDP_OPENGL_H #define PDP_OPENGL_H
#include "pdp.h" #include "pdp_texture.h" #include "pdp_3Dcontext.h"
t_pdp_procqueue* pdp_opengl_get_queue(void);
#endif
--- NEW FILE: pdp_3Dcontext.h --- /* * pdp system module - 3d render context packet type * Copyright (c) by Tom Schouten pdp@zzz.kotnet.org * * 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. * */
/* the 3d render context packet: platform independent data structure and method prototypes */
#ifndef PDP_3DCONTEXT_H #define PDP_3DCONTEXT_H
#include "pdp.h"
typedef struct _3dcontext { u32 encoding; /* the kind of render context */ u32 width; /* context width */ u32 height; /* context height */ u32 sub_width; /* portion that is currently used */ u32 sub_height; void *drawable; /* context's drawable (i.e. Window, GLXPbuffer, ...) */ void *context; /* context's context object */
} t_3Dcontext;
#define PDP_3DCONTEXT 5 /* 3d context packet id */ #define PDP_3DCONTEXT_WINDOW 1 /* window context packet id */ #define PDP_3DCONTEXT_PBUFFER 2 /* pbuf context packet id */
/* all symbols are C-style */ #ifdef __cplusplus extern "C" { #endif
/* info methods */ u32 pdp_packet_3Dcontext_width(int packet); u32 pdp_packet_3Dcontext_subwidth(int packet); u32 pdp_packet_3Dcontext_height(int packet); u32 pdp_packet_3Dcontext_subheight(int packet); float pdp_packet_3Dcontext_subaspect(int packet); int pdp_packet_3Dcontext_isvalid(int packet); t_3Dcontext *pdp_packet_3Dcontext_info(int packet);
/* setters */ void pdp_packet_3Dcontext_set_subwidth(int packet, u32 w); void pdp_packet_3Dcontext_set_subheight(int packet, u32 h);
/* render context activation and initialization */ void pdp_packet_3Dcontext_set_rendering_context(int packet); void pdp_packet_3Dcontext_unset_rendering_context(int packet); void pdp_packet_3Dcontext_setup_3d_context(int p); void pdp_packet_3Dcontext_setup_2d_context(int p);
/* constructors */ int pdp_packet_new_3Dcontext_pbuf(u32 width, u32 height, u32 depth); int pdp_packet_new_3Dcontext_win(void);
/* window specific methods */ void pdp_packet_3Dcontext_win_resize(int packet, int width, int height); t_pdp_list *pdp_packet_3Dcontext_win_get_eventlist(int packet); void pdp_packet_3Dcontext_win_cursor(int packet, bool toggle); void pdp_packet_3Dcontext_win_swapbuffers(int packet);
/* converters */ int pdp_packet_3Dcontext_snap_to_bitmap(int packet, int w, int h);
#ifdef __cplusplus } #endif
#endif
--- NEW FILE: pdp_texture.h --- /* * pdp system module - texture packet type * Copyright (c) by Tom Schouten pdp@zzz.kotnet.org * * 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. * */
#ifndef PDP_TEXTURE_H #define PDP_TEXTURE_H
//#include <GL/gl.h> //#include <GL/glu.h> //#include <GL/glx.h> //#include <GL/glut.h> #include "pdp.h"
/* TEXTURE PACKET */
typedef struct { u32 tex_obj; /* gl texture object */ s32 format; /* texture format */ u32 width; /* dims */ u32 height;
u32 sub_width; /* portion of texture used */ u32 sub_height;
} t_texture;
#define PDP_TEXTURE 4 /* opengl texture object */
/* all symbols are C-style */ #ifdef __cplusplus extern "C" { #endif
/* check if valid texture packet. all other methods assume packet is valid */ bool pdp_packet_texture_isvalid(int packet);
/* returns a pointer to the packet subheader whem the packet contains a texture */ /* try not to use the header directly, use clone and copy methods instead */ t_texture *pdp_packet_texture_info(int packet);
/* texture constructors */ int pdp_packet_new_texture(u32 width, u32 height, s32 format); /* create a texture packet */
/* texture operators */ void pdp_packet_texture_make_current(int packet); /* make a texture the current texture context */ u32 pdp_packet_texture_total_width(int packet); /* width of texture */ u32 pdp_packet_texture_total_height(int packet); /* get heigth of texture */ u32 pdp_packet_texture_sub_width(int packet); /* width of subtexture */ u32 pdp_packet_texture_sub_height(int packet); /* heigth of subtexture */ float pdp_packet_texture_fracx(int packet); /* x fraction */ float pdp_packet_texture_fracy(int packet); /* y fraction */ float pdp_packet_texture_sub_aspect(int packet);
/* some utility methods */ void pdp_packet_texture_make_current_enable(int packet); /* make current & enable with default texture settings (for the lazy)*/ void pdp_packet_texture_setup_2d_context(int packet); /* set up 2d context (viewport, projection, modelview) from texture dims */
#ifdef __cplusplus } #endif
#endif //PDP_TEXTURE_H