libgoatvr

annotate src/vr.h @ 16:b2d902fff68d

renamed VR_EYE_RES_SCALE to VR_RENDER_RES_SCALE added convenience options: VR_RENDER_XRES & VR_RENDER_YRES, which are derived from VR_LEYE_XRES, VR_REYE_XRES, etc.
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 25 Sep 2014 09:06:57 +0300
parents 27fcd4c2969d
children 3de7339841d0
rev   line source
nuclear@0 1 #ifndef VR_H_
nuclear@0 2 #define VR_H_
nuclear@0 3
nuclear@8 4 /* unit: pixels */
nuclear@11 5 #define VR_DISPLAY_WIDTH "display-xres"
nuclear@11 6 #define VR_DISPLAY_HEIGHT "display-yres"
nuclear@11 7 #define VR_LEYE_XRES "left-eye-xres"
nuclear@11 8 #define VR_LEYE_YRES "left-eye-yres"
nuclear@11 9 #define VR_REYE_XRES "right-eye-xres"
nuclear@11 10 #define VR_REYE_YRES "right-eye-yres"
nuclear@16 11 #define VR_RENDER_XRES "render-xres" /* VR_LEYE_XRES + VR_REYE_XRES */
nuclear@16 12 #define VR_RENDER_YRES "render-yres" /* max(VR_LEYE_YRES, VR_REYE_YRES) */
nuclear@11 13 #define VR_WIN_XOFFS "win-xoffset"
nuclear@11 14 #define VR_WIN_YOFFS "win-yoffset"
nuclear@16 15 #define VR_RENDER_RES_SCALE "render-res-scale" /* default 1 */
nuclear@8 16 /* unit: meters */
nuclear@11 17 #define VR_EYE_HEIGHT "eye-height"
nuclear@11 18 #define VR_IPD "ipd"
nuclear@0 19
nuclear@0 20 enum {
nuclear@0 21 VR_EYE_LEFT,
nuclear@0 22 VR_EYE_RIGHT
nuclear@0 23 };
nuclear@0 24
nuclear@0 25 #ifdef __cplusplus
nuclear@0 26 extern "C" {
nuclear@0 27 #endif
nuclear@0 28
nuclear@0 29 int vr_init(void);
nuclear@0 30 void vr_shutdown(void);
nuclear@0 31
nuclear@0 32 int vr_module_count(void);
nuclear@0 33 const char *vr_module_name(int idx);
nuclear@0 34
nuclear@0 35 int vr_use_module(int idx);
nuclear@0 36 int vr_use_module_named(const char *name);
nuclear@0 37
nuclear@11 38 void vr_seti(const char *optname, int val);
nuclear@11 39 void vr_setf(const char *optname, float val);
nuclear@11 40 int vr_geti(const char *optname);
nuclear@11 41 float vr_getf(const char *optname);
nuclear@12 42 /* variants of the get functions, with an additional "default value"
nuclear@12 43 * argument, which is returned if the requested option is missing
nuclear@12 44 */
nuclear@12 45 int vr_geti_def(const char *optname, int def_val);
nuclear@12 46 float vr_getf_def(const char *optname, float def_val);
nuclear@0 47
nuclear@0 48 int vr_view_translation(int eye, float *vec);
nuclear@0 49 int vr_view_rotation(int eye, float *quat);
nuclear@0 50
nuclear@0 51 /* returns non-zero if the active vr module provides this kind of matrix
nuclear@0 52 * information, otherwise it returns zero, and sets mat to identity
nuclear@0 53 */
nuclear@0 54 int vr_view_matrix(int eye, float *mat);
nuclear@0 55 int vr_proj_matrix(int eye, float znear, float zfar, float *mat);
nuclear@0 56
nuclear@0 57 void vr_begin(int eye);
nuclear@0 58 void vr_end(void);
nuclear@0 59 int vr_swap_buffers(void);
nuclear@0 60
nuclear@0 61 /* set the output texture or separate textures for each eye */
nuclear@0 62 void vr_output_texture(unsigned int tex, float umin, float vmin, float umax, float vmax);
nuclear@0 63 void vr_output_texture_eye(int eye, unsigned int tex, float umin, float vmin, float umax, float vmax);
nuclear@0 64
nuclear@0 65 void vr_recenter(void);
nuclear@0 66
nuclear@0 67 #ifdef __cplusplus
nuclear@0 68 }
nuclear@0 69 #endif
nuclear@0 70
nuclear@0 71 #endif /* VR_H_ */