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-rw-r--r--nuttx/graphics/nxglib/nxglib_circletraps.c176
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diff --git a/nuttx/graphics/nxglib/nxglib_circletraps.c b/nuttx/graphics/nxglib/nxglib_circletraps.c
deleted file mode 100644
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--- a/nuttx/graphics/nxglib/nxglib_circletraps.c
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-/****************************************************************************
- * graphics/nxglib/nxglib_circletraps.c
- *
- * Copyright (C) 2011 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <string.h>
-#include <errno.h>
-#include <fixedmath.h>
-
-#include <nuttx/nx/nxglib.h>
-
-/****************************************************************************
- * Pre-Processor Definitions
- ****************************************************************************/
-/* Trigonometry */
-
-#define SIN_0p0 0 /* sin(0) = 0 */
-#define COS_0p0 1 /* cos(0) = 1 */
-#define SIN_22p5 25080 /* sin(22.5) = 25080 / 65536 */
-#define COS_22p5 60547 /* cos(22.5) = 60547 / 65536 */
-#define SIN_45p0 46341 /* sin(45) = 46341 / 65536 */
-#define COS_45p0 SIN_45p0 /* cos(45) = sin(45) */
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: nxgl_circletraps
- *
- * Description:
- * Given a description of a a circle, return 8 trapezoids that can be
- * used to fill the circle by nx_fillcircle() and other interfaces.
- *
- * Input parameters:
- * center - A pointer to the point that is the center of the circle
- * radius - The radius of the circle in pixels.
- * circle - A pointer the first entry in an array of 8 trapezoids where
- * the circle description will be returned.
- *
- * Returned value:
- * None
- *
- ****************************************************************************/
-
-void nxgl_circletraps(FAR const struct nxgl_point_s *center, nxgl_coord_t radius,
- FAR struct nxgl_trapezoid_s *circle)
-{
- nxgl_coord_t xoffs;
- nxgl_coord_t yoffs;
-
- circle[0].top.x1 = itob16(center->x);
- circle[0].top.x2 = circle[0].top.x1;
- circle[0].top.y = center->y - radius;
-
- circle[7].bot.x1 = circle[0].top.x1;
- circle[7].bot.x2 = circle[0].top.x1;
- circle[7].bot.y = center->y + radius;
-
- circle[3].bot.x1 = itob16(center->x - radius);
- circle[3].bot.x2 = itob16(center->x + radius);
- circle[3].bot.y = center->y;
-
- circle[4].top.x1 = circle[3].bot.x1;
- circle[4].top.x2 = circle[3].bot.x2;
- circle[4].top.y = circle[3].bot.y;
-
- /* Now 22.5, 67.5, 112.5, 157.5, 202.5, 247.5, 292.5, and 337.5 */
-
- xoffs = b16toi(b16muli(COS_22p5, radius) + b16HALF);
- yoffs = b16toi(b16muli(SIN_22p5, radius) + b16HALF);
-
- circle[2].bot.x1 = itob16(center->x - xoffs);
- circle[2].bot.x2 = itob16(center->x + xoffs);
- circle[2].bot.y = center->y - yoffs;
-
- circle[3].top.x1 = circle[2].bot.x1;
- circle[3].top.x2 = circle[2].bot.x2;
- circle[3].top.y = circle[2].bot.y;
-
- circle[4].bot.x1 = circle[2].bot.x1;
- circle[4].bot.x2 = circle[2].bot.x2;
- circle[4].bot.y = center->y + yoffs;
-
- circle[5].top.x1 = circle[4].bot.x1;
- circle[5].top.x2 = circle[4].bot.x2;
- circle[5].top.y = circle[4].bot.y;
-
- circle[0].bot.x1 = itob16(center->x - yoffs);
- circle[0].bot.x2 = itob16(center->x + yoffs);
- circle[0].bot.y = center->y - xoffs;
-
- circle[1].top.x1 = circle[0].bot.x1;
- circle[1].top.x2 = circle[0].bot.x2;
- circle[1].top.y = circle[0].bot.y;
-
- circle[6].bot.x1 = circle[1].top.x1;
- circle[6].bot.x2 = circle[1].top.x2;
- circle[6].bot.y = center->y + xoffs;
-
- circle[7].top.x1 = circle[6].bot.x1;
- circle[7].top.x2 = circle[6].bot.x2;
- circle[7].top.y = circle[6].bot.y;
-
- /* Finally, 45.0, 135.0, 225.0, 315.0 */
-
- xoffs = b16toi(b16muli(COS_45p0, radius) + b16HALF);
-
- circle[1].bot.x1 = itob16(center->x - xoffs);
- circle[1].bot.x2 = itob16(center->x + xoffs);
- circle[1].bot.y = center->y - xoffs;
-
- circle[2].top.x1 = circle[1].bot.x1;
- circle[2].top.x2 = circle[1].bot.x2;
- circle[2].top.y = circle[1].bot.y;
-
- circle[5].bot.x1 = circle[1].bot.x1;
- circle[5].bot.x2 = circle[1].bot.x2;
- circle[5].bot.y = center->y + xoffs;
-
- circle[6].top.x1 = circle[5].bot.x1;
- circle[6].top.x2 = circle[5].bot.x2;
- circle[6].top.y = circle[5].bot.y;
-}
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