libgoatvr
annotate src/vr_null.c @ 0:ded3d0a74e19
initial commit
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Fri, 29 Aug 2014 03:45:25 +0300 |
| parents | |
| children | e63cb28fc644 |
| rev | line source |
|---|---|
| nuclear@0 | 1 #ifdef WIN32 |
| nuclear@0 | 2 #define WIN32_LEAN_AND_MEAN |
| nuclear@0 | 3 #include <windows.h> |
| nuclear@0 | 4 #endif |
| nuclear@0 | 5 #ifdef __APPLE__ |
| nuclear@0 | 6 #include <OpenGL/gl.h> |
| nuclear@0 | 7 #else |
| nuclear@0 | 8 #include <GL/gl.h> |
| nuclear@0 | 9 #endif |
| nuclear@0 | 10 #include "vr_impl.h" |
| nuclear@0 | 11 |
| nuclear@0 | 12 static unsigned int eye_tex[2]; |
| nuclear@0 | 13 static float tex_umin[2], tex_umax[2]; |
| nuclear@0 | 14 static float tex_vmin[2], tex_vmax[2]; |
| nuclear@0 | 15 |
| nuclear@0 | 16 static int init(void) |
| nuclear@0 | 17 { |
| nuclear@0 | 18 return 0; |
| nuclear@0 | 19 } |
| nuclear@0 | 20 |
| nuclear@0 | 21 static int present(void) |
| nuclear@0 | 22 { |
| nuclear@0 | 23 int i; |
| nuclear@0 | 24 |
| nuclear@0 | 25 glPushAttrib(GL_ENABLE_BIT | GL_TRANSFORM_BIT); |
| nuclear@0 | 26 |
| nuclear@0 | 27 glDisable(GL_LIGHTING); |
| nuclear@0 | 28 glDisable(GL_DEPTH_TEST); |
| nuclear@0 | 29 glDisable(GL_FOG); |
| nuclear@0 | 30 glDisable(GL_CULL_FACE); |
| nuclear@0 | 31 |
| nuclear@0 | 32 glEnable(GL_TEXTURE_2D); |
| nuclear@0 | 33 |
| nuclear@0 | 34 glMatrixMode(GL_MODELVIEW); |
| nuclear@0 | 35 glLoadIdentity(); |
| nuclear@0 | 36 glMatrixMode(GL_PROJECTION); |
| nuclear@0 | 37 glLoadIdentity(); |
| nuclear@0 | 38 |
| nuclear@0 | 39 for(i=0; i<2; i++) { |
| nuclear@0 | 40 float x0 = i == 0 ? -1 : 0; |
| nuclear@0 | 41 float x1 = i == 0 ? 0 : 1; |
| nuclear@0 | 42 |
| nuclear@0 | 43 glBindTexture(GL_TEXTURE_2D, eye_tex[i]); |
| nuclear@0 | 44 |
| nuclear@0 | 45 glBegin(GL_QUADS); |
| nuclear@0 | 46 glTexCoord2f(tex_umin[i], tex_vmin[i]); |
| nuclear@0 | 47 glVertex2f(x0, -1); |
| nuclear@0 | 48 glTexCoord2f(tex_umax[i], tex_vmin[i]); |
| nuclear@0 | 49 glVertex2f(x1, -1); |
| nuclear@0 | 50 glTexCoord2f(tex_umax[i], tex_vmax[i]); |
| nuclear@0 | 51 glVertex2f(x1, 1); |
| nuclear@0 | 52 glTexCoord2f(tex_umin[i], tex_vmax[i]); |
| nuclear@0 | 53 glVertex2f(x0, 1); |
| nuclear@0 | 54 glEnd(); |
| nuclear@0 | 55 } |
| nuclear@0 | 56 |
| nuclear@0 | 57 glPopMatrix(); |
| nuclear@0 | 58 glMatrixMode(GL_MODELVIEW); |
| nuclear@0 | 59 glPopMatrix(); |
| nuclear@0 | 60 |
| nuclear@0 | 61 glPopAttrib(); |
| nuclear@0 | 62 return 0; |
| nuclear@0 | 63 } |
| nuclear@0 | 64 |
| nuclear@0 | 65 static void set_eye_texture(int eye, unsigned int tex, float umin, float vmin, float umax, float vmax) |
| nuclear@0 | 66 { |
| nuclear@0 | 67 eye_tex[eye] = tex; |
| nuclear@0 | 68 tex_umin[eye] = umin; |
| nuclear@0 | 69 tex_umax[eye] = umax; |
| nuclear@0 | 70 tex_vmin[eye] = vmin; |
| nuclear@0 | 71 tex_vmax[eye] = vmax; |
| nuclear@0 | 72 } |
| nuclear@0 | 73 |
| nuclear@0 | 74 struct vr_module *vr_module_null(void) |
| nuclear@0 | 75 { |
| nuclear@0 | 76 static struct vr_module m; |
| nuclear@0 | 77 |
| nuclear@0 | 78 if(!m.init) { |
| nuclear@0 | 79 m.name = "null"; |
| nuclear@0 | 80 m.init = init; |
| nuclear@0 | 81 m.set_eye_texture = set_eye_texture; |
| nuclear@0 | 82 m.present = present; |
| nuclear@0 | 83 } |
| nuclear@0 | 84 return &m; |
| nuclear@0 | 85 } |