diff options
Diffstat (limited to 'opengl/include')
| -rw-r--r-- | opengl/include/Makefile | 5 | ||||
| -rw-r--r-- | opengl/include/pdp_3Dcontext.h | 94 | ||||
| -rw-r--r-- | opengl/include/pdp_3dp_base.h | 35 | ||||
| -rw-r--r-- | opengl/include/pdp_mesh.h | 210 | ||||
| -rw-r--r-- | opengl/include/pdp_opengl.h | 33 | ||||
| -rw-r--r-- | opengl/include/pdp_texture.h | 93 |
6 files changed, 470 insertions, 0 deletions
diff --git a/opengl/include/Makefile b/opengl/include/Makefile new file mode 100644 index 0000000..f2075ee --- /dev/null +++ b/opengl/include/Makefile @@ -0,0 +1,5 @@ +all: + +clean: + rm -rf *~ + diff --git a/opengl/include/pdp_3Dcontext.h b/opengl/include/pdp_3Dcontext.h new file mode 100644 index 0000000..2af1dcf --- /dev/null +++ b/opengl/include/pdp_3Dcontext.h @@ -0,0 +1,94 @@ +/* + * 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); + void pdp_packet_3Dcontext_win_send_events(int packet, t_outlet *outlet); + 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 diff --git a/opengl/include/pdp_3dp_base.h b/opengl/include/pdp_3dp_base.h new file mode 100644 index 0000000..5c53f51 --- /dev/null +++ b/opengl/include/pdp_3dp_base.h @@ -0,0 +1,35 @@ +#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 + diff --git a/opengl/include/pdp_mesh.h b/opengl/include/pdp_mesh.h new file mode 100644 index 0000000..8fd6dff --- /dev/null +++ b/opengl/include/pdp_mesh.h @@ -0,0 +1,210 @@ +/* + * 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 diff --git a/opengl/include/pdp_opengl.h b/opengl/include/pdp_opengl.h new file mode 100644 index 0000000..c32735d --- /dev/null +++ b/opengl/include/pdp_opengl.h @@ -0,0 +1,33 @@ +/* + * 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 diff --git a/opengl/include/pdp_texture.h b/opengl/include/pdp_texture.h new file mode 100644 index 0000000..7a40cdd --- /dev/null +++ b/opengl/include/pdp_texture.h @@ -0,0 +1,93 @@ +/* + * 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 |