diff options
Diffstat (limited to 'libdimension/dimension/camera.h')
| -rw-r--r-- | libdimension/dimension/camera.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/libdimension/dimension/camera.h b/libdimension/dimension/camera.h index b1c4ebe..4ea1cbe 100644 --- a/libdimension/dimension/camera.h +++ b/libdimension/dimension/camera.h @@ -25,23 +25,29 @@ * A camera. */ -typedef dmnsn_line dmnsn_camera_ray_fn(const dmnsn_canvas *canvas, +/* Forward-declare dmnsn_camera */ +typedef struct dmnsn_camera dmnsn_camera; + +/* Camera callback types */ +typedef dmnsn_line dmnsn_camera_ray_fn(const dmnsn_camera *camera, + const dmnsn_canvas *canvas, unsigned int x, unsigned int y); -typedef struct { +struct dmnsn_camera { /* Generic pointer for camera info */ void *ptr; /* Callback function */ dmnsn_camera_ray_fn *ray_fn; -} dmnsn_camera; +}; dmnsn_camera *dmnsn_new_camera(); void dmnsn_delete_camera(dmnsn_camera *camera); -/* A perspective camera, at the origin, looking at (0, 0, 1) */ +/* A perspective camera, at the origin, looking at (0, 0, 1). Rays are + transformed by the transformation matrix `trans'. */ -dmnsn_camera *dmnsn_new_perspective_camera(); +dmnsn_camera *dmnsn_new_perspective_camera(dmnsn_matrix trans); void dmnsn_delete_perspective_camera(dmnsn_camera *camera); #endif /* DIMENSION_CAMERA_H */ |