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Dependencies:   mbed Blynk

u8glibARM/u8g_pb16h2.c@1:0e75de2a5d21, 2016-06-13 (annotated)

Committer:
lixianyu
Date:
Mon Jun 13 02:21:11 2016 +0000
Revision:
1:0e75de2a5d21
Parent:
0:d8f4c441e032 
u8glib???????????????????????????Adafruit_GFX????OLED????????bitmap??????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lixianyu 0:d8f4c441e032 1 /*
lixianyu 0:d8f4c441e032 2
lixianyu 0:d8f4c441e032 3 u8g_pb16h2.c
lixianyu 0:d8f4c441e032 4
lixianyu 0:d8f4c441e032 5 2 bit per pixel page buffer
lixianyu 0:d8f4c441e032 6 byte has horizontal orientation
lixianyu 0:d8f4c441e032 7
lixianyu 0:d8f4c441e032 8 Universal 8bit Graphics Library
lixianyu 0:d8f4c441e032 9
lixianyu 0:d8f4c441e032 10 Copyright (c) 2011, olikraus@gmail.com
lixianyu 0:d8f4c441e032 11 All rights reserved.
lixianyu 0:d8f4c441e032 12
lixianyu 0:d8f4c441e032 13 Redistribution and use in source and binary forms, with or without modification,
lixianyu 0:d8f4c441e032 14 are permitted provided that the following conditions are met:
lixianyu 0:d8f4c441e032 15
lixianyu 0:d8f4c441e032 16 * Redistributions of source code must retain the above copyright notice, this list
lixianyu 0:d8f4c441e032 17 of conditions and the following disclaimer.
lixianyu 0:d8f4c441e032 18
lixianyu 0:d8f4c441e032 19 * Redistributions in binary form must reproduce the above copyright notice, this
lixianyu 0:d8f4c441e032 20 list of conditions and the following disclaimer in the documentation and/or other
lixianyu 0:d8f4c441e032 21 materials provided with the distribution.
lixianyu 0:d8f4c441e032 22
lixianyu 0:d8f4c441e032 23 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
lixianyu 0:d8f4c441e032 24 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
lixianyu 0:d8f4c441e032 25 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
lixianyu 0:d8f4c441e032 26 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
lixianyu 0:d8f4c441e032 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
lixianyu 0:d8f4c441e032 28 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
lixianyu 0:d8f4c441e032 29 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
lixianyu 0:d8f4c441e032 30 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
lixianyu 0:d8f4c441e032 31 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
lixianyu 0:d8f4c441e032 32 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
lixianyu 0:d8f4c441e032 33 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
lixianyu 0:d8f4c441e032 34 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
lixianyu 0:d8f4c441e032 35 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
lixianyu 0:d8f4c441e032 36
lixianyu 0:d8f4c441e032 37
lixianyu 0:d8f4c441e032 38 */
lixianyu 0:d8f4c441e032 39
lixianyu 0:d8f4c441e032 40 #include "u8g.h"
lixianyu 0:d8f4c441e032 41 #include <string.h>
lixianyu 0:d8f4c441e032 42
lixianyu 0:d8f4c441e032 43 void u8g_pb16h2_Clear(u8g_pb_t *b)
lixianyu 0:d8f4c441e032 44 {
lixianyu 0:d8f4c441e032 45 uint8_t *ptr = (uint8_t *)b->buf;
lixianyu 0:d8f4c441e032 46 uint8_t *end_ptr = ptr;
lixianyu 0:d8f4c441e032 47
lixianyu 0:d8f4c441e032 48 /* two bits per pixel, 16 bits height --> 8 pixel --> 4 pixel per byte */
lixianyu 0:d8f4c441e032 49 end_ptr += b->width;
lixianyu 0:d8f4c441e032 50 end_ptr += b->width;
lixianyu 0:d8f4c441e032 51
lixianyu 0:d8f4c441e032 52 do
lixianyu 0:d8f4c441e032 53 {
lixianyu 0:d8f4c441e032 54 *ptr++ = 0;
lixianyu 0:d8f4c441e032 55 } while( ptr != end_ptr );
lixianyu 0:d8f4c441e032 56 }
lixianyu 0:d8f4c441e032 57
lixianyu 0:d8f4c441e032 58 void u8g_pb16h2_Init(u8g_pb_t *b, void *buf, u8g_uint_t width)
lixianyu 0:d8f4c441e032 59 {
lixianyu 0:d8f4c441e032 60 b->buf = buf;
lixianyu 0:d8f4c441e032 61 b->width = width;
lixianyu 0:d8f4c441e032 62 u8g_pb16h2_Clear(b);
lixianyu 0:d8f4c441e032 63 }
lixianyu 0:d8f4c441e032 64
lixianyu 0:d8f4c441e032 65 static void u8g_pb16h2_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index, uint8_t is_or) U8G_NOINLINE;
lixianyu 0:d8f4c441e032 66 static void u8g_pb16h2_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index, uint8_t is_or)
lixianyu 0:d8f4c441e032 67 {
lixianyu 0:d8f4c441e032 68 register uint8_t mask;
lixianyu 0:d8f4c441e032 69 register uint16_t tmp;
lixianyu 0:d8f4c441e032 70
lixianyu 0:d8f4c441e032 71 uint8_t *ptr = b->buf;
lixianyu 0:d8f4c441e032 72
lixianyu 0:d8f4c441e032 73 y -= b->p.page_y0;
lixianyu 0:d8f4c441e032 74
lixianyu 0:d8f4c441e032 75 tmp = b->width;
lixianyu 0:d8f4c441e032 76 tmp >>= 2;
lixianyu 0:d8f4c441e032 77 tmp *= (uint8_t)y;
lixianyu 0:d8f4c441e032 78 ptr += tmp;
lixianyu 0:d8f4c441e032 79
lixianyu 0:d8f4c441e032 80 tmp = x;
lixianyu 0:d8f4c441e032 81 tmp >>= 2;
lixianyu 0:d8f4c441e032 82 ptr += tmp;
lixianyu 0:d8f4c441e032 83
lixianyu 0:d8f4c441e032 84 tmp = x;
lixianyu 0:d8f4c441e032 85 tmp &= 3;
lixianyu 0:d8f4c441e032 86 tmp <<= 1;
lixianyu 0:d8f4c441e032 87 if ( is_or == 0 )
lixianyu 0:d8f4c441e032 88 {
lixianyu 0:d8f4c441e032 89 mask = 3;
lixianyu 0:d8f4c441e032 90 mask <<= tmp;
lixianyu 0:d8f4c441e032 91 mask = ~mask;
lixianyu 0:d8f4c441e032 92 *ptr &= mask;
lixianyu 0:d8f4c441e032 93 }
lixianyu 0:d8f4c441e032 94 color_index &= 3;
lixianyu 0:d8f4c441e032 95 color_index <<= tmp;
lixianyu 0:d8f4c441e032 96 *ptr |= color_index;
lixianyu 0:d8f4c441e032 97 }
lixianyu 0:d8f4c441e032 98
lixianyu 0:d8f4c441e032 99
lixianyu 0:d8f4c441e032 100 void u8g_pb16h2_SetPixel(u8g_pb_t *b, const u8g_dev_arg_pixel_t * const arg_pixel, uint8_t is_or)
lixianyu 0:d8f4c441e032 101 {
lixianyu 0:d8f4c441e032 102 if ( arg_pixel->y < b->p.page_y0 )
lixianyu 0:d8f4c441e032 103 return;
lixianyu 0:d8f4c441e032 104 if ( arg_pixel->y > b->p.page_y1 )
lixianyu 0:d8f4c441e032 105 return;
lixianyu 0:d8f4c441e032 106 if ( arg_pixel->x >= b->width )
lixianyu 0:d8f4c441e032 107 return;
lixianyu 0:d8f4c441e032 108 u8g_pb16h2_set_pixel(b, arg_pixel->x, arg_pixel->y, arg_pixel->color, is_or);
lixianyu 0:d8f4c441e032 109 }
lixianyu 0:d8f4c441e032 110
lixianyu 0:d8f4c441e032 111
lixianyu 0:d8f4c441e032 112 void u8g_pb16h2_Set8PixelStd(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
lixianyu 0:d8f4c441e032 113 {
lixianyu 0:d8f4c441e032 114 register uint8_t pixel = arg_pixel->pixel;
lixianyu 0:d8f4c441e032 115 do
lixianyu 0:d8f4c441e032 116 {
lixianyu 0:d8f4c441e032 117 if ( pixel & 128 )
lixianyu 0:d8f4c441e032 118 {
lixianyu 0:d8f4c441e032 119 u8g_pb16h2_SetPixel(b, arg_pixel, 0);
lixianyu 0:d8f4c441e032 120 }
lixianyu 0:d8f4c441e032 121 switch( arg_pixel->dir )
lixianyu 0:d8f4c441e032 122 {
lixianyu 0:d8f4c441e032 123 case 0: arg_pixel->x++; break;
lixianyu 0:d8f4c441e032 124 case 1: arg_pixel->y++; break;
lixianyu 0:d8f4c441e032 125 case 2: arg_pixel->x--; break;
lixianyu 0:d8f4c441e032 126 case 3: arg_pixel->y--; break;
lixianyu 0:d8f4c441e032 127 }
lixianyu 0:d8f4c441e032 128 pixel <<= 1;
lixianyu 0:d8f4c441e032 129 } while( pixel != 0 );
lixianyu 0:d8f4c441e032 130 }
lixianyu 0:d8f4c441e032 131
lixianyu 0:d8f4c441e032 132 void u8g_pb16h2_Or4PixelStd(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
lixianyu 0:d8f4c441e032 133 {
lixianyu 0:d8f4c441e032 134 register uint8_t pixel = arg_pixel->pixel;
lixianyu 0:d8f4c441e032 135 do
lixianyu 0:d8f4c441e032 136 {
lixianyu 0:d8f4c441e032 137 arg_pixel->color = pixel & 0x0c0;
lixianyu 0:d8f4c441e032 138 arg_pixel->color >>= 6;
lixianyu 0:d8f4c441e032 139 u8g_pb16h2_SetPixel(b, arg_pixel, 1);
lixianyu 0:d8f4c441e032 140 switch( arg_pixel->dir )
lixianyu 0:d8f4c441e032 141 {
lixianyu 0:d8f4c441e032 142 case 0: arg_pixel->x++; break;
lixianyu 0:d8f4c441e032 143 case 1: arg_pixel->y++; break;
lixianyu 0:d8f4c441e032 144 case 2: arg_pixel->x--; break;
lixianyu 0:d8f4c441e032 145 case 3: arg_pixel->y--; break;
lixianyu 0:d8f4c441e032 146 }
lixianyu 0:d8f4c441e032 147 pixel <<= 2;
lixianyu 0:d8f4c441e032 148 } while( pixel != 0 );
lixianyu 0:d8f4c441e032 149 }
lixianyu 0:d8f4c441e032 150
lixianyu 0:d8f4c441e032 151
lixianyu 0:d8f4c441e032 152 uint8_t u8g_dev_pb16h2_base_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
lixianyu 0:d8f4c441e032 153 {
lixianyu 0:d8f4c441e032 154 u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
lixianyu 0:d8f4c441e032 155 switch(msg)
lixianyu 0:d8f4c441e032 156 {
lixianyu 0:d8f4c441e032 157 case U8G_DEV_MSG_SET_8PIXEL:
lixianyu 0:d8f4c441e032 158 if ( u8g_pb_Is8PixelVisible(pb, (u8g_dev_arg_pixel_t *)arg) )
lixianyu 0:d8f4c441e032 159 {
lixianyu 0:d8f4c441e032 160 u8g_pb16h2_Set8PixelStd(pb, (u8g_dev_arg_pixel_t *)arg);
lixianyu 0:d8f4c441e032 161 }
lixianyu 0:d8f4c441e032 162 break;
lixianyu 0:d8f4c441e032 163 case U8G_DEV_MSG_SET_PIXEL:
lixianyu 0:d8f4c441e032 164 u8g_pb16h2_SetPixel(pb, (u8g_dev_arg_pixel_t *)arg, 0);
lixianyu 0:d8f4c441e032 165 break;
lixianyu 0:d8f4c441e032 166 case U8G_DEV_MSG_SET_4TPIXEL:
lixianyu 0:d8f4c441e032 167 u8g_pb16h2_Or4PixelStd(pb, (u8g_dev_arg_pixel_t *)arg);
lixianyu 0:d8f4c441e032 168 break;
lixianyu 0:d8f4c441e032 169 case U8G_DEV_MSG_SET_TPIXEL:
lixianyu 0:d8f4c441e032 170 u8g_pb16h2_SetPixel(pb, (u8g_dev_arg_pixel_t *)arg, 1);
lixianyu 0:d8f4c441e032 171 break;
lixianyu 0:d8f4c441e032 172 case U8G_DEV_MSG_INIT:
lixianyu 0:d8f4c441e032 173 break;
lixianyu 0:d8f4c441e032 174 case U8G_DEV_MSG_STOP:
lixianyu 0:d8f4c441e032 175 break;
lixianyu 0:d8f4c441e032 176 case U8G_DEV_MSG_PAGE_FIRST:
lixianyu 0:d8f4c441e032 177 u8g_page_First(&(pb->p));
lixianyu 0:d8f4c441e032 178 u8g_pb16h2_Clear(pb);
lixianyu 0:d8f4c441e032 179 break;
lixianyu 0:d8f4c441e032 180 case U8G_DEV_MSG_PAGE_NEXT:
lixianyu 0:d8f4c441e032 181 if ( u8g_page_Next(&(pb->p)) == 0 )
lixianyu 0:d8f4c441e032 182 return 0;
lixianyu 0:d8f4c441e032 183 u8g_pb16h2_Clear(pb);
lixianyu 0:d8f4c441e032 184 break;
lixianyu 0:d8f4c441e032 185 #ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
lixianyu 0:d8f4c441e032 186 case U8G_DEV_MSG_IS_BBX_INTERSECTION:
lixianyu 0:d8f4c441e032 187 return u8g_pb_IsIntersection(pb, (u8g_dev_arg_bbx_t *)arg);
lixianyu 0:d8f4c441e032 188 #endif
lixianyu 0:d8f4c441e032 189 case U8G_DEV_MSG_GET_PAGE_BOX:
lixianyu 0:d8f4c441e032 190 u8g_pb_GetPageBox(pb, (u8g_box_t *)arg);
lixianyu 0:d8f4c441e032 191 break;
lixianyu 0:d8f4c441e032 192 case U8G_DEV_MSG_GET_WIDTH:
lixianyu 0:d8f4c441e032 193 *((u8g_uint_t *)arg) = pb->width;
lixianyu 0:d8f4c441e032 194 break;
lixianyu 0:d8f4c441e032 195 case U8G_DEV_MSG_GET_HEIGHT:
lixianyu 0:d8f4c441e032 196 *((u8g_uint_t *)arg) = pb->p.total_height;
lixianyu 0:d8f4c441e032 197 break;
lixianyu 0:d8f4c441e032 198 case U8G_DEV_MSG_SET_COLOR_ENTRY:
lixianyu 0:d8f4c441e032 199 break;
lixianyu 0:d8f4c441e032 200 case U8G_DEV_MSG_SET_XY_CB:
lixianyu 0:d8f4c441e032 201 break;
lixianyu 0:d8f4c441e032 202 case U8G_DEV_MSG_GET_MODE:
lixianyu 0:d8f4c441e032 203 return U8G_MODE_GRAY2BIT;
lixianyu 0:d8f4c441e032 204 }
lixianyu 0:d8f4c441e032 205 return 1;
lixianyu 0:d8f4c441e032 206 }
lixianyu 0:d8f4c441e032 207
lixianyu 0:d8f4c441e032 208
lixianyu 0:d8f4c441e032 209