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/**************************************************************************
*
* Copyright 2009 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef ARC_H
#define ARC_H
#include "VG/openvg.h"
struct polygon;
struct matrix;
struct stroker;
struct path;
struct arc {
VGPathSegment type;
VGfloat cx, cy;
VGfloat a, b;
VGfloat theta;
VGfloat cos_theta, sin_theta;
VGfloat eta1;
VGfloat eta2;
VGfloat x1, y1, x2, y2;
VGboolean is_valid;
};
void arc_init(struct arc *arc,
VGPathSegment type,
VGfloat x1, VGfloat y1,
VGfloat x2, VGfloat y2,
VGfloat rh, VGfloat rv,
VGfloat rot);
void arc_add_to_polygon(struct arc *arc,
struct polygon *poly,
struct matrix *matrix);
void arc_to_path(struct arc *arc,
struct path *p,
struct matrix *matrix);
void arc_stroke_cb(struct arc *arc,
struct stroker *stroke,
struct matrix *matrix);
void arc_stroker_emit(struct arc *arc,
struct stroker *stroke,
struct matrix *matrix);
#endif
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