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Diffstat (limited to 'nx-X11/extras/freetype2/include/freetype/fttrigon.h')
| -rw-r--r-- | nx-X11/extras/freetype2/include/freetype/fttrigon.h | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/nx-X11/extras/freetype2/include/freetype/fttrigon.h b/nx-X11/extras/freetype2/include/freetype/fttrigon.h deleted file mode 100644 index 0462265e3..000000000 --- a/nx-X11/extras/freetype2/include/freetype/fttrigon.h +++ /dev/null @@ -1,315 +0,0 @@ -/***************************************************************************/ -/* */ -/* fttrigon.h */ -/* */ -/* FreeType trigonometric functions (specification). */ -/* */ -/* Copyright 2001, 2003 by */ -/* David Turner, Robert Wilhelm, and Werner Lemberg. */ -/* */ -/* This file is part of the FreeType project, and may only be used, */ -/* modified, and distributed under the terms of the FreeType project */ -/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ -/* this file you indicate that you have read the license and */ -/* understand and accept it fully. */ -/* */ -/***************************************************************************/ - - -#ifndef __FTTRIGON_H__ -#define __FTTRIGON_H__ - -#include FT_FREETYPE_H - -#ifdef FREETYPE_H -#error "freetype.h of FreeType 1 has been loaded!" -#error "Please fix the directory search order for header files" -#error "so that freetype.h of FreeType 2 is found first." -#endif - - -FT_BEGIN_HEADER - - - /*************************************************************************/ - /* */ - /* @section: */ - /* computations */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* @type: */ - /* FT_Angle */ - /* */ - /* @description: */ - /* This type is used to model angle values in FreeType. Note that */ - /* the angle is a 16.16 fixed float value expressed in degrees. */ - /* */ - typedef FT_Fixed FT_Angle; - - - /*************************************************************************/ - /* */ - /* @macro: */ - /* FT_ANGLE_PI */ - /* */ - /* @description: */ - /* The angle pi expressed in @FT_Angle units. */ - /* */ -#define FT_ANGLE_PI ( 180L << 16 ) - - - /*************************************************************************/ - /* */ - /* @macro: */ - /* FT_ANGLE_2PI */ - /* */ - /* @description: */ - /* The angle 2*pi expressed in @FT_Angle units. */ - /* */ -#define FT_ANGLE_2PI ( FT_ANGLE_PI * 2 ) - - - /*************************************************************************/ - /* */ - /* @macro: */ - /* FT_ANGLE_PI2 */ - /* */ - /* @description: */ - /* The angle pi/2 expressed in @FT_Angle units. */ - /* */ -#define FT_ANGLE_PI2 ( FT_ANGLE_PI / 2 ) - - - /*************************************************************************/ - /* */ - /* @macro: */ - /* FT_ANGLE_PI4 */ - /* */ - /* @description: */ - /* The angle pi/4 expressed in @FT_Angle units. */ - /* */ -#define FT_ANGLE_PI4 ( FT_ANGLE_PI / 4 ) - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Sin */ - /* */ - /* @description: */ - /* Return the sinus of a given angle in fixed point format. */ - /* */ - /* @input: */ - /* angle :: The input angle. */ - /* */ - /* @return: */ - /* The sinus value. */ - /* */ - /* @note: */ - /* If you need both the sinus and cosinus for a given angle, use the */ - /* function @FT_Vector_Unit. */ - /* */ - FT_EXPORT( FT_Fixed ) - FT_Sin( FT_Angle angle ); - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Cos */ - /* */ - /* @description: */ - /* Return the cosinus of a given angle in fixed point format. */ - /* */ - /* @input: */ - /* angle :: The input angle. */ - /* */ - /* @return: */ - /* The cosinus value. */ - /* */ - /* @note: */ - /* If you need both the sinus and cosinus for a given angle, use the */ - /* function @FT_Vector_Unit. */ - /* */ - FT_EXPORT( FT_Fixed ) - FT_Cos( FT_Angle angle ); - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Tan */ - /* */ - /* @description: */ - /* Return the tangent of a given angle in fixed point format. */ - /* */ - /* @input: */ - /* angle :: The input angle. */ - /* */ - /* @return: */ - /* The tangent value. */ - /* */ - FT_EXPORT( FT_Fixed ) - FT_Tan( FT_Angle angle ); - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Atan2 */ - /* */ - /* @description: */ - /* Return the arc-tangent corresponding to a given vector (x,y) in */ - /* the 2d plane. */ - /* */ - /* @input: */ - /* x :: The horizontal vector coordinate. */ - /* */ - /* y :: The vertical vector coordinate. */ - /* */ - /* @return: */ - /* The arc-tangent value (i.e. angle). */ - /* */ - FT_EXPORT( FT_Angle ) - FT_Atan2( FT_Fixed x, - FT_Fixed y ); - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Angle_Diff */ - /* */ - /* @description: */ - /* Return the difference between two angles. The result is always */ - /* constrained to the ]-PI..PI] interval. */ - /* */ - /* @input: */ - /* angle1 :: First angle. */ - /* */ - /* angle2 :: Second angle. */ - /* */ - /* @return: */ - /* Contrainted value of `value2-value1'. */ - /* */ - FT_EXPORT( FT_Angle ) - FT_Angle_Diff( FT_Angle angle1, - FT_Angle angle2 ); - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Vector_Unit */ - /* */ - /* @description: */ - /* Return the unit vector corresponding to a given angle. After the */ - /* call, the value of `vec.x' will be `sin(angle)', and the value of */ - /* `vec.y' will be `cos(angle)'. */ - /* */ - /* This function is useful to retrieve both the sinus and cosinus of */ - /* a given angle quickly. */ - /* */ - /* @output: */ - /* vec :: The address of target vector. */ - /* */ - /* @input: */ - /* angle :: The address of angle. */ - /* */ - FT_EXPORT( void ) - FT_Vector_Unit( FT_Vector* vec, - FT_Angle angle ); - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Vector_Rotate */ - /* */ - /* @description: */ - /* Rotate a vector by a given angle. */ - /* */ - /* @inout: */ - /* vec :: The address of target vector. */ - /* */ - /* @input: */ - /* angle :: The address of angle. */ - /* */ - FT_EXPORT( void ) - FT_Vector_Rotate( FT_Vector* vec, - FT_Angle angle ); - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Vector_Length */ - /* */ - /* @description: */ - /* Return the length of a given vector. */ - /* */ - /* @input: */ - /* vec :: The address of target vector. */ - /* */ - /* @return: */ - /* The vector length, expressed in the same units that the original */ - /* vector coordinates. */ - /* */ - FT_EXPORT( FT_Fixed ) - FT_Vector_Length( FT_Vector* vec ); - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Vector_Polarize */ - /* */ - /* @description: */ - /* Compute both the length and angle of a given vector. */ - /* */ - /* @input: */ - /* vec :: The address of source vector. */ - /* */ - /* @output: */ - /* length :: The vector length. */ - /* angle :: The vector angle. */ - /* */ - FT_EXPORT( void ) - FT_Vector_Polarize( FT_Vector* vec, - FT_Fixed *length, - FT_Angle *angle ); - - - /*************************************************************************/ - /* */ - /* @function: */ - /* FT_Vector_From_Polar */ - /* */ - /* @description: */ - /* Compute vector coordinates from a length and angle. */ - /* */ - /* @output: */ - /* vec :: The address of source vector. */ - /* */ - /* @input: */ - /* length :: The vector length. */ - /* angle :: The vector angle. */ - /* */ - FT_EXPORT( void ) - FT_Vector_From_Polar( FT_Vector* vec, - FT_Fixed length, - FT_Angle angle ); - - /* */ - - -FT_END_HEADER - -#endif /* __FTTRIGON_H__ */ - - -/* END */ |