Diff: u8glibARM/u8g_circle.c

Revision:

2:6cd3b0947188

Parent:

1:0e75de2a5d21

Child:

3:4cd9171ba989

--- a/u8glibARM/u8g_circle.c	Mon Jun 13 02:21:11 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,383 +0,0 @@
-/*
-
-  u8g_circle.c
-
-  Utility to draw empty and filled circles.
-  
-  Universal 8bit Graphics Library
-  
-  Copyright (c) 2011, bjthom@gmail.com
-  u8g_DrawCircle & u8g_DrawDisc by olikraus@gmail.com
-  
-  All rights reserved.
-
-  Redistribution and use in source and binary forms, with or without modification, 
-  are permitted provided that the following conditions are met:
-
-  * Redistributions of source code must retain the above copyright notice, this list 
-    of conditions and the following disclaimer.
-    
-  * 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.
-
-  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 HOLDER 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.  
-  
-  Addition to the U8G Library 02/25/12
-  
-  
-*/
-
-#include "u8g.h"
-
-#ifdef OLD_CODE
-
-void circ_upperRight(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t x0, u8g_uint_t y0) {
-  u8g_DrawPixel(u8g, x0 + x, y0 - y);
-  u8g_DrawPixel(u8g, x0 + y, y0 - x);
-}
-		
-void circ_upperLeft(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t x0, u8g_uint_t y0) {
-  u8g_DrawPixel(u8g, x0 - x, y0 - y);
-  u8g_DrawPixel(u8g, x0 - y, y0 - x);
-}
-		
-void circ_lowerRight(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t x0, u8g_uint_t y0) {
-  u8g_DrawPixel(u8g, x0 + x, y0 + y);
-  u8g_DrawPixel(u8g, x0 + y, y0 + x);
-}
-		
-void circ_lowerLeft(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t x0, u8g_uint_t y0) {
-  u8g_DrawPixel(u8g, x0 - x, y0 + y);
-  u8g_DrawPixel(u8g, x0 - y, y0 + x);
-}
-			
-void circ_all(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t x0, u8g_uint_t y0) {
-  circ_upperRight(u8g, x, y, x0, y0);
-  circ_upperLeft(u8g, x, y, x0, y0);
-  circ_lowerRight(u8g, x, y, x0, y0);
-  circ_lowerLeft(u8g, x, y, x0, y0);
-}
-
-void u8g_DrawEmpCirc(u8g_t *u8g, u8g_uint_t x0, u8g_uint_t y0, u8g_uint_t rad, uint8_t option)
-{
-  if ( u8g_IsBBXIntersection(u8g, x0-rad-1, y0-rad-1, 2*rad+1, 2*rad+1) == 0)
-    return;
-
-  int f = 1 - rad;
-  int ddF_x = 1;
-  int ddF_y = -2*rad;
-  uint8_t x = 0;
-  uint8_t y = rad;
-
-  void ( *circ_util )(u8g_t *, u8g_uint_t, u8g_uint_t, u8g_uint_t, u8g_uint_t);
-  
-  switch (option)
-  {
-	case U8G_CIRC_UPPER_RIGHT:
-		u8g_DrawPixel(u8g, x0, y0 - rad);
-		u8g_DrawPixel(u8g, x0 + rad, y0);
-		circ_util = circ_upperRight;
-		break;
-	case U8G_CIRC_UPPER_LEFT:
-		u8g_DrawPixel(u8g, x0, y0 - rad);
-		u8g_DrawPixel(u8g, x0 - rad, y0);
-		circ_util = circ_upperLeft;
-		break;
-	case U8G_CIRC_LOWER_RIGHT:
-		u8g_DrawPixel(u8g, x0, y0 + rad);
-		u8g_DrawPixel(u8g, x0 + rad, y0);
-		circ_util = circ_lowerRight;
-		break;
-	case U8G_CIRC_LOWER_LEFT:
-		u8g_DrawPixel(u8g, x0, y0 + rad);
-		u8g_DrawPixel(u8g, x0 - rad, y0);
-		circ_util = circ_lowerLeft;
-		break;
-        default:
-	case U8G_CIRC_ALL:
-		u8g_DrawPixel(u8g, x0, y0 + rad);
-		u8g_DrawPixel(u8g, x0, y0 - rad);
-		u8g_DrawPixel(u8g, x0 + rad, y0);
-		u8g_DrawPixel(u8g, x0 - rad, y0);
-		circ_util = circ_all;
-		break;
-  }
-  
-  while( x < y )
-  {
-    if(f >= 0) 
-    {
-      y--;
-      ddF_y += 2;
-      f += ddF_y;
-    }
-    x++;
-    ddF_x += 2;
-    f += ddF_x;
-    
-    circ_util(u8g, x, y, x0, y0);
-  }
-}
-
-
-void u8g_DrawFillCirc(u8g_t *u8g, u8g_uint_t x0, u8g_uint_t y0, u8g_uint_t rad, uint8_t option)
-{
-  if ( u8g_IsBBXIntersection(u8g, x0-rad-1, y0-rad-1, 2*rad+1, 2*rad+1) == 0)
-    return;
-
-  int f = 1 - rad;
-  int ddF_x = 1;
-  int ddF_y = -2*rad;
-  uint8_t x = 0;
-  uint8_t y = rad;
-  
-  // Draw vertical diameter at the horiz. center
-  // u8g_DrawVLine(u8g, x0, y0 - rad, 2*rad+1);
-
-  if (option == U8G_CIRC_UPPER_LEFT || option == U8G_CIRC_UPPER_RIGHT) {
-	u8g_DrawVLine(u8g, x0, y0 - rad, rad+1);
-  }
-  else if (option == U8G_CIRC_LOWER_LEFT || option == U8G_CIRC_LOWER_RIGHT) {
-	u8g_DrawVLine(u8g, x0, y0, rad+1);
-  }
-  else {
-	u8g_DrawVLine(u8g, x0, y0 - rad, 2*rad+1);
-  }
-  
-  while( x < y )
-  {
-    if(f >= 0) 
-    {
-      y--;
-      ddF_y += 2;
-      f += ddF_y;
-    }
-    x++;
-    ddF_x += 2;
-    f += ddF_x;
-    
-	//Draw vertical lines from one point to another
-	
-	switch (option)
-	{
-		case U8G_CIRC_UPPER_RIGHT:
-			u8g_DrawVLine(u8g, x0+x, y0-y, y+1);
-			u8g_DrawVLine(u8g, x0+y, y0-x, x+1);
-			break;
-		case U8G_CIRC_UPPER_LEFT:
-			u8g_DrawVLine(u8g, x0-x, y0-y, y+1);
-			u8g_DrawVLine(u8g, x0-y, y0-x, x+1);
-			break;
-		case U8G_CIRC_LOWER_RIGHT:
-			u8g_DrawVLine(u8g, x0+x, y0, y+1);
-			u8g_DrawVLine(u8g, x0+y, y0, x+1);
-			break;
-		case U8G_CIRC_LOWER_LEFT:
-			u8g_DrawVLine(u8g, x0-x, y0, y+1);
-			u8g_DrawVLine(u8g, x0-y, y0, x+1);
-			break;
-		case U8G_CIRC_ALL:
-			u8g_DrawVLine(u8g, x0+x, y0-y, 2*y+1);
-			u8g_DrawVLine(u8g, x0-x, y0-y, 2*y+1);
-			u8g_DrawVLine(u8g, x0+y, y0-x, 2*x+1);
-			u8g_DrawVLine(u8g, x0-y, y0-x, 2*x+1);
-			break;
-	}
-  }
-}
-
-#endif 
-
-/*=========================================================================*/
-
-static void u8g_draw_circle_section(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t x0, u8g_uint_t y0, uint8_t option) U8G_NOINLINE;
-
-static void u8g_draw_circle_section(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t x0, u8g_uint_t y0, uint8_t option)
-{
-    /* upper right */
-    if ( option & U8G_DRAW_UPPER_RIGHT )
-    {
-      u8g_DrawPixel(u8g, x0 + x, y0 - y);
-      u8g_DrawPixel(u8g, x0 + y, y0 - x);
-    }
-    
-    /* upper left */
-    if ( option & U8G_DRAW_UPPER_LEFT )
-    {
-      u8g_DrawPixel(u8g, x0 - x, y0 - y);
-      u8g_DrawPixel(u8g, x0 - y, y0 - x);
-    }
-    
-    /* lower right */
-    if ( option & U8G_DRAW_LOWER_RIGHT )
-    {
-      u8g_DrawPixel(u8g, x0 + x, y0 + y);
-      u8g_DrawPixel(u8g, x0 + y, y0 + x);
-    }
-    
-    /* lower left */
-    if ( option & U8G_DRAW_LOWER_LEFT )
-    {
-      u8g_DrawPixel(u8g, x0 - x, y0 + y);
-      u8g_DrawPixel(u8g, x0 - y, y0 + x);
-    }
-}
-
-void u8g_draw_circle(u8g_t *u8g, u8g_uint_t x0, u8g_uint_t y0, u8g_uint_t rad, uint8_t option)
-{
-    u8g_int_t f;
-    u8g_int_t ddF_x;
-    u8g_int_t ddF_y;
-    u8g_uint_t x;
-    u8g_uint_t y;
-
-    f = 1;
-    f -= rad;
-    ddF_x = 1;
-    ddF_y = 0;
-    ddF_y -= rad;
-    ddF_y *= 2;
-    x = 0;
-    y = rad;
-
-    u8g_draw_circle_section(u8g, x, y, x0, y0, option);
-    
-    while ( x < y )
-    {
-      if (f >= 0) 
-      {
-        y--;
-        ddF_y += 2;
-        f += ddF_y;
-      }
-      x++;
-      ddF_x += 2;
-      f += ddF_x;
-
-      u8g_draw_circle_section(u8g, x, y, x0, y0, option);    
-    }
-}
-
-void u8g_DrawCircle(u8g_t *u8g, u8g_uint_t x0, u8g_uint_t y0, u8g_uint_t rad, uint8_t option)
-{
-  /* check for bounding box */
-  {
-    u8g_uint_t radp, radp2;
-    
-    radp = rad;
-    radp++;
-    radp2 = radp;
-    radp2 *= 2;
-    
-    if ( u8g_IsBBXIntersection(u8g, x0-radp, y0-radp, radp2, radp2) == 0)
-      return;    
-  }
-  
-  /* draw circle */
-  u8g_draw_circle(u8g, x0, y0, rad, option);
-}
-
-static void u8g_draw_disc_section(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t x0, u8g_uint_t y0, uint8_t option) U8G_NOINLINE;
-
-static void u8g_draw_disc_section(u8g_t *u8g, u8g_uint_t x, u8g_uint_t y, u8g_uint_t x0, u8g_uint_t y0, uint8_t option)
-{
-    /* upper right */
-    if ( option & U8G_DRAW_UPPER_RIGHT )
-    {
-      u8g_DrawVLine(u8g, x0+x, y0-y, y+1);
-      u8g_DrawVLine(u8g, x0+y, y0-x, x+1);
-    }
-    
-    /* upper left */
-    if ( option & U8G_DRAW_UPPER_LEFT )
-    {
-      u8g_DrawVLine(u8g, x0-x, y0-y, y+1);
-      u8g_DrawVLine(u8g, x0-y, y0-x, x+1);
-    }
-    
-    /* lower right */
-    if ( option & U8G_DRAW_LOWER_RIGHT )
-    {
-      u8g_DrawVLine(u8g, x0+x, y0, y+1);
-      u8g_DrawVLine(u8g, x0+y, y0, x+1);
-    }
-    
-    /* lower left */
-    if ( option & U8G_DRAW_LOWER_LEFT )
-    {
-      u8g_DrawVLine(u8g, x0-x, y0, y+1);
-      u8g_DrawVLine(u8g, x0-y, y0, x+1);
-    }
-}
-
-void u8g_draw_disc(u8g_t *u8g, u8g_uint_t x0, u8g_uint_t y0, u8g_uint_t rad, uint8_t option)
-{
-  u8g_int_t f;
-  u8g_int_t ddF_x;
-  u8g_int_t ddF_y;
-  u8g_uint_t x;
-  u8g_uint_t y;
-
-  f = 1;
-  f -= rad;
-  ddF_x = 1;
-  ddF_y = 0;
-  ddF_y -= rad;
-  ddF_y *= 2;
-  x = 0;
-  y = rad;
-
-  u8g_draw_disc_section(u8g, x, y, x0, y0, option);
-  
-  while ( x < y )
-  {
-    if (f >= 0) 
-    {
-      y--;
-      ddF_y += 2;
-      f += ddF_y;
-    }
-    x++;
-    ddF_x += 2;
-    f += ddF_x;
-
-    u8g_draw_disc_section(u8g, x, y, x0, y0, option);    
-  }
-}
-
-void u8g_DrawDisc(u8g_t *u8g, u8g_uint_t x0, u8g_uint_t y0, u8g_uint_t rad, uint8_t option)
-{
-  /* check for bounding box */
-  {
-    u8g_uint_t radp, radp2;
-    
-    radp = rad;
-    radp++;
-    radp2 = radp;
-    radp2 *= 2;
-    
-    if ( u8g_IsBBXIntersection(u8g, x0-radp, y0-radp, radp2, radp2) == 0)
-      return;    
-  }
-  
-  /* draw disc */
-  u8g_draw_disc(u8g, x0, y0, rad, option);
-}
-
-
-
-
-