/* File: QD3DCamera.h Contains: Generic camera routines Version: Technology: Quickdraw 3D 1.6 Release: QuickTime 4.0 Copyright: (c) 1995-1998 by Apple Computer, Inc., all rights reserved. Bugs?: For bug reports, consult the following page on the World Wide Web: http://developer.apple.com/bugreporter/ */ #ifndef __QD3DCAMERA__ #define __QD3DCAMERA__ #ifndef __QD3D__ #include #endif #if PRAGMA_ONCE #pragma once #endif #ifdef __cplusplus extern "C" { #endif #if PRAGMA_IMPORT #pragma import on #endif #if PRAGMA_STRUCT_ALIGN #pragma options align=power #elif PRAGMA_STRUCT_PACKPUSH #pragma pack(push, 2) #elif PRAGMA_STRUCT_PACK #pragma pack(2) #endif #if PRAGMA_ENUM_ALWAYSINT #pragma enumsalwaysint on #elif PRAGMA_ENUM_OPTIONS #pragma option enum=int #elif PRAGMA_ENUM_PACK #if __option(pack_enums) #define PRAGMA_ENUM_PACK__QD3DCAMERA__ #endif #pragma options(!pack_enums) #endif /****************************************************************************** ** ** ** Data Structure Definitions ** ** ** *****************************************************************************/ /* * The placement of the camera. */ struct TQ3CameraPlacement { TQ3Point3D cameraLocation; /* Location point of the camera */ TQ3Point3D pointOfInterest; /* Point of interest */ TQ3Vector3D upVector; /* "up" vector */ }; typedef struct TQ3CameraPlacement TQ3CameraPlacement; /* * The range of the camera. */ struct TQ3CameraRange { float hither; /* Hither plane, measured from "from" towards "to" */ float yon; /* Yon plane, measured from "from" towards "to" */ }; typedef struct TQ3CameraRange TQ3CameraRange; /* * Viewport specification. Origin is (-1, 1), and corresponds to the * upper left-hand corner; width and height maximum is (2.0, 2.0), * corresponding to the lower left-hand corner of the window. The * TQ3Viewport specifies a part of the viewPlane that gets displayed * on the window that is to be drawn. * Normally, it is set with an origin of (-1.0, 1.0), and a width and * height of both 2.0, specifying that the entire window is to be * drawn. If, for example, an exposure event of the window exposed * the right half of the window, you would set the origin to (0, 1), * and the width and height to (1.0) and (2.0), respectively. * */ struct TQ3CameraViewPort { TQ3Point2D origin; float width; float height; }; typedef struct TQ3CameraViewPort TQ3CameraViewPort; struct TQ3CameraData { TQ3CameraPlacement placement; TQ3CameraRange range; TQ3CameraViewPort viewPort; }; typedef struct TQ3CameraData TQ3CameraData; /* * An orthographic camera. * * The lens characteristics are set with the dimensions of a * rectangular viewPort in the frame of the camera. */ struct TQ3OrthographicCameraData { TQ3CameraData cameraData; float left; float top; float right; float bottom; }; typedef struct TQ3OrthographicCameraData TQ3OrthographicCameraData; /* * A perspective camera specified in terms of an arbitrary view plane. * * This is most useful when setting the camera to look at a particular * object. The viewPlane is set to distance from the camera to the object. * The halfWidth is set to half the width of the cross section of the object, * and the halfHeight equal to the halfWidth divided by the aspect ratio * of the viewPort. * * This is the only perspective camera with specifications for off-axis * viewing, which is desirable for scrolling. */ struct TQ3ViewPlaneCameraData { TQ3CameraData cameraData; float viewPlane; float halfWidthAtViewPlane; float halfHeightAtViewPlane; float centerXOnViewPlane; float centerYOnViewPlane; }; typedef struct TQ3ViewPlaneCameraData TQ3ViewPlaneCameraData; /* * A view angle aspect camera is a perspective camera specified in * terms of the minimum view angle and the aspect ratio of X to Y. * */ struct TQ3ViewAngleAspectCameraData { TQ3CameraData cameraData; float fov; float aspectRatioXToY; }; typedef struct TQ3ViewAngleAspectCameraData TQ3ViewAngleAspectCameraData; /****************************************************************************** ** ** ** Generic Camera routines ** ** ** *****************************************************************************/ EXTERN_API_C( TQ3ObjectType ) Q3Camera_GetType (TQ3CameraObject camera); EXTERN_API_C( TQ3Status ) Q3Camera_SetData (TQ3CameraObject camera, const TQ3CameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3Camera_GetData (TQ3CameraObject camera, TQ3CameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3Camera_SetPlacement (TQ3CameraObject camera, const TQ3CameraPlacement * placement); EXTERN_API_C( TQ3Status ) Q3Camera_GetPlacement (TQ3CameraObject camera, TQ3CameraPlacement * placement); EXTERN_API_C( TQ3Status ) Q3Camera_SetRange (TQ3CameraObject camera, const TQ3CameraRange * range); EXTERN_API_C( TQ3Status ) Q3Camera_GetRange (TQ3CameraObject camera, TQ3CameraRange * range); EXTERN_API_C( TQ3Status ) Q3Camera_SetViewPort (TQ3CameraObject camera, const TQ3CameraViewPort * viewPort); EXTERN_API_C( TQ3Status ) Q3Camera_GetViewPort (TQ3CameraObject camera, TQ3CameraViewPort * viewPort); EXTERN_API_C( TQ3Status ) Q3Camera_GetWorldToView (TQ3CameraObject camera, TQ3Matrix4x4 * worldToView); EXTERN_API_C( TQ3Status ) Q3Camera_GetWorldToFrustum (TQ3CameraObject camera, TQ3Matrix4x4 * worldToFrustum); EXTERN_API_C( TQ3Status ) Q3Camera_GetViewToFrustum (TQ3CameraObject camera, TQ3Matrix4x4 * viewToFrustum); /****************************************************************************** ** ** ** Specific Camera Routines ** ** ** *****************************************************************************/ /****************************************************************************** ** ** ** Orthographic Camera ** ** ** *****************************************************************************/ EXTERN_API_C( TQ3CameraObject ) Q3OrthographicCamera_New (const TQ3OrthographicCameraData * orthographicData); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_GetData (TQ3CameraObject camera, TQ3OrthographicCameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_SetData (TQ3CameraObject camera, const TQ3OrthographicCameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_SetLeft (TQ3CameraObject camera, float left); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_GetLeft (TQ3CameraObject camera, float * left); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_SetTop (TQ3CameraObject camera, float top); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_GetTop (TQ3CameraObject camera, float * top); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_SetRight (TQ3CameraObject camera, float right); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_GetRight (TQ3CameraObject camera, float * right); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_SetBottom (TQ3CameraObject camera, float bottom); EXTERN_API_C( TQ3Status ) Q3OrthographicCamera_GetBottom (TQ3CameraObject camera, float * bottom); /****************************************************************************** ** ** ** ViewPlane Camera ** ** ** *****************************************************************************/ EXTERN_API_C( TQ3CameraObject ) Q3ViewPlaneCamera_New (const TQ3ViewPlaneCameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_GetData (TQ3CameraObject camera, TQ3ViewPlaneCameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_SetData (TQ3CameraObject camera, const TQ3ViewPlaneCameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_SetViewPlane (TQ3CameraObject camera, float viewPlane); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_GetViewPlane (TQ3CameraObject camera, float * viewPlane); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_SetHalfWidth (TQ3CameraObject camera, float halfWidthAtViewPlane); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_GetHalfWidth (TQ3CameraObject camera, float * halfWidthAtViewPlane); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_SetHalfHeight (TQ3CameraObject camera, float halfHeightAtViewPlane); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_GetHalfHeight (TQ3CameraObject camera, float * halfHeightAtViewPlane); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_SetCenterX (TQ3CameraObject camera, float centerXOnViewPlane); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_GetCenterX (TQ3CameraObject camera, float * centerXOnViewPlane); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_SetCenterY (TQ3CameraObject camera, float centerYOnViewPlane); EXTERN_API_C( TQ3Status ) Q3ViewPlaneCamera_GetCenterY (TQ3CameraObject camera, float * centerYOnViewPlane); /****************************************************************************** ** ** ** View Angle Aspect Camera ** ** ** *****************************************************************************/ EXTERN_API_C( TQ3CameraObject ) Q3ViewAngleAspectCamera_New (const TQ3ViewAngleAspectCameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3ViewAngleAspectCamera_SetData (TQ3CameraObject camera, const TQ3ViewAngleAspectCameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3ViewAngleAspectCamera_GetData (TQ3CameraObject camera, TQ3ViewAngleAspectCameraData * cameraData); EXTERN_API_C( TQ3Status ) Q3ViewAngleAspectCamera_SetFOV (TQ3CameraObject camera, float fov); EXTERN_API_C( TQ3Status ) Q3ViewAngleAspectCamera_GetFOV (TQ3CameraObject camera, float * fov); EXTERN_API_C( TQ3Status ) Q3ViewAngleAspectCamera_SetAspectRatio (TQ3CameraObject camera, float aspectRatioXToY); EXTERN_API_C( TQ3Status ) Q3ViewAngleAspectCamera_GetAspectRatio (TQ3CameraObject camera, float * aspectRatioXToY); #if PRAGMA_ENUM_ALWAYSINT #pragma enumsalwaysint reset #elif PRAGMA_ENUM_OPTIONS #pragma option enum=reset #elif defined(PRAGMA_ENUM_PACK__QD3DCAMERA__) #pragma options(pack_enums) #endif #if PRAGMA_STRUCT_ALIGN #pragma options align=reset #elif PRAGMA_STRUCT_PACKPUSH #pragma pack(pop) #elif PRAGMA_STRUCT_PACK #pragma pack() #endif #ifdef PRAGMA_IMPORT_OFF #pragma import off #elif PRAGMA_IMPORT #pragma import reset #endif #ifdef __cplusplus } #endif #endif /* __QD3DCAMERA__ */