Diff: u8glibARM/u8g_scale.c

Revision:

2:6cd3b0947188

Parent:

1:0e75de2a5d21

Child:

3:4cd9171ba989

--- a/u8glibARM/u8g_scale.c	Mon Jun 13 02:21:11 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,189 +0,0 @@
-/*
-
-  u8g_scale.c
-
-  Universal 8bit Graphics Library
-  
-  Copyright (c) 2012, 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.  
-
-  Scale screen by some constant factors. Usefull for making bigger fonts wiht less
-  memory consumption
-    
-*/
-
-#include "u8g.h"
-
-uint8_t u8g_dev_scale_2x2_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg);
-
-
-u8g_dev_t u8g_dev_scale = { u8g_dev_scale_2x2_fn, NULL, NULL };
-
-void u8g_UndoScale(u8g_t *u8g)
-{
-  if ( u8g->dev != &u8g_dev_scale )
-    return;
-  u8g->dev = u8g_dev_scale.dev_mem;
-  u8g_UpdateDimension(u8g);
-}
-
-void u8g_SetScale2x2(u8g_t *u8g)
-{
-  if ( u8g->dev != &u8g_dev_scale )
-  {
-    u8g_dev_scale.dev_mem = u8g->dev;
-    u8g->dev = &u8g_dev_scale;
-  }
-  u8g_dev_scale.dev_fn = u8g_dev_scale_2x2_fn;
-  u8g_UpdateDimension(u8g);
-}
-
-
-uint8_t u8g_dev_scale_2x2_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
-{
-  u8g_dev_t *chain = (u8g_dev_t *)(dev->dev_mem);
-  uint8_t pixel;
-  uint16_t scaled_pixel;
-  uint8_t i;
-  uint8_t dir;
-  u8g_uint_t x, y, xx,yy;
-  
-  switch(msg)
-  {
-    default:
-      return u8g_call_dev_fn(u8g, chain, msg, arg);
-    case U8G_DEV_MSG_GET_WIDTH:
-      *((u8g_uint_t *)arg) = u8g_GetWidthLL(u8g, chain) / 2;
-      break;
-    case U8G_DEV_MSG_GET_HEIGHT:
-      *((u8g_uint_t *)arg) = u8g_GetHeightLL(u8g, chain) / 2;
-      break;
-    case U8G_DEV_MSG_GET_PAGE_BOX:
-      /* get page size from next device in the chain */
-      u8g_call_dev_fn(u8g, chain, msg, arg);
-      ((u8g_box_t *)arg)->x0 /= 2;
-      ((u8g_box_t *)arg)->x1 /= 2;
-      ((u8g_box_t *)arg)->y0 /= 2;
-      ((u8g_box_t *)arg)->y1 /= 2;
-      return 1;
-    case U8G_DEV_MSG_SET_PIXEL:
-      x = ((u8g_dev_arg_pixel_t *)arg)->x;
-      x *= 2;
-      y = ((u8g_dev_arg_pixel_t *)arg)->y;
-      y *= 2;
-      ((u8g_dev_arg_pixel_t *)arg)->x = x;
-      ((u8g_dev_arg_pixel_t *)arg)->y = y;
-      u8g_call_dev_fn(u8g, chain, msg, arg);
-      x++;
-      ((u8g_dev_arg_pixel_t *)arg)->x = x;
-      ((u8g_dev_arg_pixel_t *)arg)->y = y;
-      u8g_call_dev_fn(u8g, chain, msg, arg);
-      y++;
-      ((u8g_dev_arg_pixel_t *)arg)->x = x;
-      ((u8g_dev_arg_pixel_t *)arg)->y = y;
-      u8g_call_dev_fn(u8g, chain, msg, arg);
-      x--;
-      ((u8g_dev_arg_pixel_t *)arg)->x = x;
-      ((u8g_dev_arg_pixel_t *)arg)->y = y;
-      u8g_call_dev_fn(u8g, chain, msg, arg);    
-      break;
-    case U8G_DEV_MSG_SET_8PIXEL:
-      pixel = ((u8g_dev_arg_pixel_t *)arg)->pixel;
-      dir = ((u8g_dev_arg_pixel_t *)arg)->dir;
-      scaled_pixel = 0;
-      for( i = 0; i < 8; i++ )
-      {
-	scaled_pixel<<=2;
-	if ( pixel & 128 )
-	{
-	  scaled_pixel |= 3;
-	}
-	pixel<<=1;
-      }
-      x = ((u8g_dev_arg_pixel_t *)arg)->x;
-      x *= 2;
-      xx = x;
-      y = ((u8g_dev_arg_pixel_t *)arg)->y;
-      y *= 2;
-      yy = y;
-      if ( ((u8g_dev_arg_pixel_t *)arg)->dir & 1 )
-      {
-	xx++;
-      }
-      else
-      {
-	yy++;
-      }
-      
-      ((u8g_dev_arg_pixel_t *)arg)->pixel = scaled_pixel>>8;      
-      ((u8g_dev_arg_pixel_t *)arg)->x = x;
-      ((u8g_dev_arg_pixel_t *)arg)->y = y;
-      ((u8g_dev_arg_pixel_t *)arg)->dir = dir;
-      u8g_call_dev_fn(u8g, chain, msg, arg);    
-
-      
-      ((u8g_dev_arg_pixel_t *)arg)->x = xx;
-      ((u8g_dev_arg_pixel_t *)arg)->y = yy;
-      ((u8g_dev_arg_pixel_t *)arg)->dir = dir;
-      u8g_call_dev_fn(u8g, chain, msg, arg);    
-      
-      ((u8g_dev_arg_pixel_t *)arg)->pixel = scaled_pixel&255;
-      //((u8g_dev_arg_pixel_t *)arg)->pixel = 0x00;
-      switch(dir)
-      {
-	case 0:
- 	  x+=8;
-	  xx+=8;
-	  break;
-	case 1:
-	  y+=8;
-	  yy+=8;
-	  break;
-	case 2:
-	  x-=8;
-	  xx-=8;
-	  break;
-	case 3:
-	  y-=8;
-	  yy-=8;
-	  break;
-      }
-      ((u8g_dev_arg_pixel_t *)arg)->x = x;
-      ((u8g_dev_arg_pixel_t *)arg)->y = y;
-      ((u8g_dev_arg_pixel_t *)arg)->dir = dir;
-      u8g_call_dev_fn(u8g, chain, msg, arg);    
-      
-      ((u8g_dev_arg_pixel_t *)arg)->x = xx;
-      ((u8g_dev_arg_pixel_t *)arg)->y = yy;
-      ((u8g_dev_arg_pixel_t *)arg)->dir = dir;
-      u8g_call_dev_fn(u8g, chain, msg, arg);    
-      break;
-  }
-  return 1;
-}
-
-