mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-11-25 06:47:19 +00:00
66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/*
|
|
Looking Glass - KVM FrameRelay (KVMFR) Client
|
|
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
|
|
https://looking-glass.hostfission.com
|
|
|
|
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., 59 Temple
|
|
Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "draw.h"
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
|
|
void egl_draw_torus(EGL_Model * model, unsigned int pts, float x, float y, float inner, float outer)
|
|
{
|
|
GLfloat * v = (GLfloat *)malloc(sizeof(GLfloat) * (pts + 1) * 6);
|
|
GLfloat * dst = v;
|
|
|
|
for(unsigned int i = 0; i <= pts; ++i)
|
|
{
|
|
const float angle = (i / (float)pts) * M_PI * 2.0f;
|
|
const float c = cos(angle);
|
|
const float s = sin(angle);
|
|
*dst = x + (inner * c); ++dst;
|
|
*dst = y + (inner * s); ++dst;
|
|
*dst = 0.0f; ++dst;
|
|
*dst = x + (outer * c); ++dst;
|
|
*dst = y + (outer * s); ++dst;
|
|
*dst = 0.0f; ++dst;
|
|
}
|
|
|
|
egl_model_add_verticies(model, v, NULL, (pts + 1) * 2);
|
|
free(v);
|
|
}
|
|
|
|
void egl_draw_torus_arc(EGL_Model * model, unsigned int pts, float x, float y, float inner, float outer, float s, float e)
|
|
{
|
|
GLfloat * v = (GLfloat *)malloc(sizeof(GLfloat) * (pts + 1) * 6);
|
|
GLfloat * dst = v;
|
|
|
|
for(unsigned int i = 0; i <= pts; ++i)
|
|
{
|
|
const float angle = s + ((i / (float)pts) * e);
|
|
const float c = cos(angle);
|
|
const float s = sin(angle);
|
|
*dst = x + (inner * c); ++dst;
|
|
*dst = y + (inner * s); ++dst;
|
|
*dst = 0.0f; ++dst;
|
|
*dst = x + (outer * c); ++dst;
|
|
*dst = y + (outer * s); ++dst;
|
|
*dst = 0.0f; ++dst;
|
|
}
|
|
|
|
egl_model_add_verticies(model, v, NULL, (pts + 1) * 2);
|
|
free(v);
|
|
} |