iforce2d Chris / Mbed 2 deprecated ubxDistanceMeter

Displays distance to start location on OLED screen.

Dependencies:   mbed

u8g_pb8h2.c@0:972874f31c98, 2018-03-07 (annotated)

Committer:
iforce2d
Date:
Wed Mar 07 12:49:14 2018 +0000
Revision:
0:972874f31c98
First commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
iforce2d 0:972874f31c98 1 /*
iforce2d 0:972874f31c98 2
iforce2d 0:972874f31c98 3 u8g_pb8h2.c
iforce2d 0:972874f31c98 4
iforce2d 0:972874f31c98 5 8bit height 2 bit per pixel page buffer
iforce2d 0:972874f31c98 6 byte has horizontal orientation
iforce2d 0:972874f31c98 7
iforce2d 0:972874f31c98 8 Universal 8bit Graphics Library
iforce2d 0:972874f31c98 9
iforce2d 0:972874f31c98 10 Copyright (c) 2011, olikraus@gmail.com
iforce2d 0:972874f31c98 11 All rights reserved.
iforce2d 0:972874f31c98 12
iforce2d 0:972874f31c98 13 Redistribution and use in source and binary forms, with or without modification,
iforce2d 0:972874f31c98 14 are permitted provided that the following conditions are met:
iforce2d 0:972874f31c98 15
iforce2d 0:972874f31c98 16 * Redistributions of source code must retain the above copyright notice, this list
iforce2d 0:972874f31c98 17 of conditions and the following disclaimer.
iforce2d 0:972874f31c98 18
iforce2d 0:972874f31c98 19 * Redistributions in binary form must reproduce the above copyright notice, this
iforce2d 0:972874f31c98 20 list of conditions and the following disclaimer in the documentation and/or other
iforce2d 0:972874f31c98 21 materials provided with the distribution.
iforce2d 0:972874f31c98 22
iforce2d 0:972874f31c98 23 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
iforce2d 0:972874f31c98 24 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
iforce2d 0:972874f31c98 25 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
iforce2d 0:972874f31c98 26 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
iforce2d 0:972874f31c98 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
iforce2d 0:972874f31c98 28 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
iforce2d 0:972874f31c98 29 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
iforce2d 0:972874f31c98 30 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
iforce2d 0:972874f31c98 31 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
iforce2d 0:972874f31c98 32 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
iforce2d 0:972874f31c98 33 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
iforce2d 0:972874f31c98 34 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
iforce2d 0:972874f31c98 35 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
iforce2d 0:972874f31c98 36
iforce2d 0:972874f31c98 37
iforce2d 0:972874f31c98 38 */
iforce2d 0:972874f31c98 39
iforce2d 0:972874f31c98 40 #include "u8g.h"
iforce2d 0:972874f31c98 41 #include <string.h>
iforce2d 0:972874f31c98 42
iforce2d 0:972874f31c98 43 void u8g_pb8h2_Init(u8g_pb_t *b, void *buf, u8g_uint_t width)
iforce2d 0:972874f31c98 44 {
iforce2d 0:972874f31c98 45 b->buf = buf;
iforce2d 0:972874f31c98 46 b->width = width;
iforce2d 0:972874f31c98 47 u8g_pb_Clear(b);
iforce2d 0:972874f31c98 48 }
iforce2d 0:972874f31c98 49
iforce2d 0:972874f31c98 50 static void u8g_pb8h2_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index) U8G_NOINLINE;
iforce2d 0:972874f31c98 51 static void u8g_pb8h2_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index)
iforce2d 0:972874f31c98 52 {
iforce2d 0:972874f31c98 53 register uint8_t mask;
iforce2d 0:972874f31c98 54 register uint16_t tmp;
iforce2d 0:972874f31c98 55
iforce2d 0:972874f31c98 56 uint8_t *ptr = b->buf;
iforce2d 0:972874f31c98 57
iforce2d 0:972874f31c98 58 y -= b->p.page_y0;
iforce2d 0:972874f31c98 59
iforce2d 0:972874f31c98 60 tmp = b->width;
iforce2d 0:972874f31c98 61 tmp >>= 2;
iforce2d 0:972874f31c98 62 tmp *= (uint8_t)y;
iforce2d 0:972874f31c98 63 ptr += tmp;
iforce2d 0:972874f31c98 64
iforce2d 0:972874f31c98 65 tmp = x;
iforce2d 0:972874f31c98 66 tmp >>= 2;
iforce2d 0:972874f31c98 67 ptr += tmp;
iforce2d 0:972874f31c98 68
iforce2d 0:972874f31c98 69 tmp = x;
iforce2d 0:972874f31c98 70 tmp &= 3;
iforce2d 0:972874f31c98 71 tmp <<= 1;
iforce2d 0:972874f31c98 72 mask = 3;
iforce2d 0:972874f31c98 73 mask <<= tmp;
iforce2d 0:972874f31c98 74 mask = ~mask;
iforce2d 0:972874f31c98 75 color_index &= 3;
iforce2d 0:972874f31c98 76 color_index <<= tmp;
iforce2d 0:972874f31c98 77
iforce2d 0:972874f31c98 78 *ptr &= mask;
iforce2d 0:972874f31c98 79 *ptr |= color_index;
iforce2d 0:972874f31c98 80 }
iforce2d 0:972874f31c98 81
iforce2d 0:972874f31c98 82
iforce2d 0:972874f31c98 83 void u8g_pb8h2_SetPixel(u8g_pb_t *b, const u8g_dev_arg_pixel_t * const arg_pixel)
iforce2d 0:972874f31c98 84 {
iforce2d 0:972874f31c98 85 if ( arg_pixel->y < b->p.page_y0 )
iforce2d 0:972874f31c98 86 return;
iforce2d 0:972874f31c98 87 if ( arg_pixel->y > b->p.page_y1 )
iforce2d 0:972874f31c98 88 return;
iforce2d 0:972874f31c98 89 if ( arg_pixel->x >= b->width )
iforce2d 0:972874f31c98 90 return;
iforce2d 0:972874f31c98 91 u8g_pb8h2_set_pixel(b, arg_pixel->x, arg_pixel->y, arg_pixel->color);
iforce2d 0:972874f31c98 92 }
iforce2d 0:972874f31c98 93
iforce2d 0:972874f31c98 94
iforce2d 0:972874f31c98 95 void u8g_pb8h2_Set8PixelStd(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
iforce2d 0:972874f31c98 96 {
iforce2d 0:972874f31c98 97 register uint8_t pixel = arg_pixel->pixel;
iforce2d 0:972874f31c98 98 do
iforce2d 0:972874f31c98 99 {
iforce2d 0:972874f31c98 100 if ( pixel & 128 )
iforce2d 0:972874f31c98 101 {
iforce2d 0:972874f31c98 102 u8g_pb8h2_SetPixel(b, arg_pixel);
iforce2d 0:972874f31c98 103 }
iforce2d 0:972874f31c98 104 switch( arg_pixel->dir )
iforce2d 0:972874f31c98 105 {
iforce2d 0:972874f31c98 106 case 0: arg_pixel->x++; break;
iforce2d 0:972874f31c98 107 case 1: arg_pixel->y++; break;
iforce2d 0:972874f31c98 108 case 2: arg_pixel->x--; break;
iforce2d 0:972874f31c98 109 case 3: arg_pixel->y--; break;
iforce2d 0:972874f31c98 110 }
iforce2d 0:972874f31c98 111 pixel <<= 1;
iforce2d 0:972874f31c98 112 } while( pixel != 0 );
iforce2d 0:972874f31c98 113 }
iforce2d 0:972874f31c98 114
iforce2d 0:972874f31c98 115
iforce2d 0:972874f31c98 116
iforce2d 0:972874f31c98 117 uint8_t u8g_dev_pb8h2_base_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
iforce2d 0:972874f31c98 118 {
iforce2d 0:972874f31c98 119 u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
iforce2d 0:972874f31c98 120 switch(msg)
iforce2d 0:972874f31c98 121 {
iforce2d 0:972874f31c98 122 case U8G_DEV_MSG_SET_8PIXEL:
iforce2d 0:972874f31c98 123 if ( u8g_pb_Is8PixelVisible(pb, (u8g_dev_arg_pixel_t *)arg) )
iforce2d 0:972874f31c98 124 {
iforce2d 0:972874f31c98 125 u8g_pb8h2_Set8PixelStd(pb, (u8g_dev_arg_pixel_t *)arg);
iforce2d 0:972874f31c98 126 }
iforce2d 0:972874f31c98 127 break;
iforce2d 0:972874f31c98 128 case U8G_DEV_MSG_SET_PIXEL:
iforce2d 0:972874f31c98 129 u8g_pb8h2_SetPixel(pb, (u8g_dev_arg_pixel_t *)arg);
iforce2d 0:972874f31c98 130 break;
iforce2d 0:972874f31c98 131 case U8G_DEV_MSG_INIT:
iforce2d 0:972874f31c98 132 break;
iforce2d 0:972874f31c98 133 case U8G_DEV_MSG_STOP:
iforce2d 0:972874f31c98 134 break;
iforce2d 0:972874f31c98 135 case U8G_DEV_MSG_PAGE_FIRST:
iforce2d 0:972874f31c98 136 u8g_pb_Clear(pb);
iforce2d 0:972874f31c98 137 u8g_page_First(&(pb->p));
iforce2d 0:972874f31c98 138 break;
iforce2d 0:972874f31c98 139 case U8G_DEV_MSG_PAGE_NEXT:
iforce2d 0:972874f31c98 140 if ( u8g_page_Next(&(pb->p)) == 0 )
iforce2d 0:972874f31c98 141 return 0;
iforce2d 0:972874f31c98 142 u8g_pb_Clear(pb);
iforce2d 0:972874f31c98 143 break;
iforce2d 0:972874f31c98 144 #ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
iforce2d 0:972874f31c98 145 case U8G_DEV_MSG_IS_BBX_INTERSECTION:
iforce2d 0:972874f31c98 146 return u8g_pb_IsIntersection(pb, (u8g_dev_arg_bbx_t *)arg);
iforce2d 0:972874f31c98 147 #endif
iforce2d 0:972874f31c98 148 case U8G_DEV_MSG_GET_PAGE_BOX:
iforce2d 0:972874f31c98 149 u8g_pb_GetPageBox(pb, (u8g_box_t *)arg);
iforce2d 0:972874f31c98 150 break;
iforce2d 0:972874f31c98 151 case U8G_DEV_MSG_GET_WIDTH:
iforce2d 0:972874f31c98 152 *((u8g_uint_t *)arg) = pb->width;
iforce2d 0:972874f31c98 153 break;
iforce2d 0:972874f31c98 154 case U8G_DEV_MSG_GET_HEIGHT:
iforce2d 0:972874f31c98 155 *((u8g_uint_t *)arg) = pb->p.total_height;
iforce2d 0:972874f31c98 156 break;
iforce2d 0:972874f31c98 157 case U8G_DEV_MSG_SET_COLOR_ENTRY:
iforce2d 0:972874f31c98 158 break;
iforce2d 0:972874f31c98 159 case U8G_DEV_MSG_SET_XY_CB:
iforce2d 0:972874f31c98 160 break;
iforce2d 0:972874f31c98 161 case U8G_DEV_MSG_GET_MODE:
iforce2d 0:972874f31c98 162 return U8G_MODE_GRAY2BIT;
iforce2d 0:972874f31c98 163 }
iforce2d 0:972874f31c98 164 return 1;
iforce2d 0:972874f31c98 165 }
iforce2d 0:972874f31c98 166
iforce2d 0:972874f31c98 167
iforce2d 0:972874f31c98 168