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Dependencies:   mbed

Fork of LEDMatrix_Master by en 129

15x16fontsLib.cpp@7:a0cf625479c9, 2013-11-30 (annotated)

Committer:
MACRUM
Date:
Sat Nov 30 14:40:18 2013 +0000
Revision:
7:a0cf625479c9
Parent:
6:bfd5c9d80f48 
Fixed text length issue.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nameless129 4:70a1803901d1 1 #include "mbed.h"
nameless129 4:70a1803901d1 2 #include "displayCom.h"
nameless129 4:70a1803901d1 3 #include "15x16fontsLib.h"
nameless129 4:70a1803901d1 4
nameless129 4:70a1803901d1 5 SPI FontROM(p11, p12, p13); // mosi, miso, sclk
nameless129 4:70a1803901d1 6 DigitalOut FontROM_CS(p14);
nameless129 4:70a1803901d1 7
nameless129 4:70a1803901d1 8
nameless129 4:70a1803901d1 9 unsigned char matrixdata[32];
nameless129 4:70a1803901d1 10
nameless129 4:70a1803901d1 11 void read_font(unsigned short code) {
nameless129 4:70a1803901d1 12 unsigned char c1, c2, MSB,LSB;
nameless129 4:70a1803901d1 13 uint32_t Address, seq;
nameless129 4:70a1803901d1 14
nameless129 4:70a1803901d1 15 // SJIS to kuten code conversion
nameless129 4:70a1803901d1 16 c1 = (code>>8);
nameless129 4:70a1803901d1 17 c2 = (code & 0xFF);
nameless129 4:70a1803901d1 18 seq = (c1<=159 ? c1-129 : c1-193)*188 + (c2<=126 ? c2-64 : c2-65);
nameless129 4:70a1803901d1 19 MSB = seq / 94 + 1;
nameless129 4:70a1803901d1 20 LSB = seq % 94 + 1;
nameless129 4:70a1803901d1 21 Address = 0;
MACRUM 6:bfd5c9d80f48 22
nameless129 4:70a1803901d1 23 if( MSB >= 1 && MSB <= 15 && LSB >= 1 && LSB <= 94)
nameless129 4:70a1803901d1 24 Address =( (MSB - 1) * 94 + (LSB - 1))*32;
nameless129 4:70a1803901d1 25 else if(MSB >= 16 && MSB <= 47 && LSB >= 1 && LSB <= 94)
nameless129 4:70a1803901d1 26 Address =( (MSB - 16) * 94 + (LSB - 1))*32 + 0x0AA40L;
nameless129 4:70a1803901d1 27 else if(MSB >= 48 && MSB <= 84 && LSB >= 1 && LSB <= 94)
nameless129 4:70a1803901d1 28 Address = ((MSB - 48) * 94 + (LSB - 1))*32 + 0x21CDFL;
nameless129 4:70a1803901d1 29 else if(MSB == 85 && LSB >= 1 && LSB <= 94)
nameless129 4:70a1803901d1 30 Address = ((MSB - 85) * 94 + (LSB - 1))*32 + 0x3C4A0L;
nameless129 4:70a1803901d1 31 else if(MSB >= 88 && MSB <= 89 && LSB >= 1 && LSB <= 94)
nameless129 4:70a1803901d1 32 Address = ((MSB - 88) * 94 + (LSB - 1))*32 + 0x3D060L;
nameless129 4:70a1803901d1 33
MACRUM 6:bfd5c9d80f48 34 // if ASCII code
MACRUM 6:bfd5c9d80f48 35 int font_width;
MACRUM 6:bfd5c9d80f48 36 if(code >= 0x20 && code <= 0x7F) {
MACRUM 6:bfd5c9d80f48 37 Address = (code - 0x20)*16 + 255968;
MACRUM 6:bfd5c9d80f48 38 font_width = 8;
MACRUM 6:bfd5c9d80f48 39 }
MACRUM 6:bfd5c9d80f48 40 else {
MACRUM 6:bfd5c9d80f48 41 font_width = 16;
MACRUM 6:bfd5c9d80f48 42 }
MACRUM 6:bfd5c9d80f48 43
nameless129 4:70a1803901d1 44 // Deselect the device
nameless129 4:70a1803901d1 45 FontROM_CS = 1;
nameless129 4:70a1803901d1 46
nameless129 4:70a1803901d1 47 // Setup the spi for 8 bit data, high steady state clock
nameless129 4:70a1803901d1 48 FontROM.format(8,3);
nameless129 4:70a1803901d1 49 FontROM.frequency(1000000);
nameless129 4:70a1803901d1 50
nameless129 4:70a1803901d1 51 // Select the device by seting chip select low
nameless129 4:70a1803901d1 52 FontROM_CS = 0;
nameless129 4:70a1803901d1 53 FontROM.write(0x03); // Read data byte
nameless129 4:70a1803901d1 54 FontROM.write(Address>>16 & 0xff);
nameless129 4:70a1803901d1 55 FontROM.write(Address>>8 & 0xff);
nameless129 4:70a1803901d1 56 FontROM.write(Address & 0xff);
nameless129 4:70a1803901d1 57
nameless129 4:70a1803901d1 58 // Send a dummy byte to receive the contents of the WHOAMI register
MACRUM 6:bfd5c9d80f48 59 for(int i=0; i<(font_width*2); i++)
nameless129 4:70a1803901d1 60 {
MACRUM 6:bfd5c9d80f48 61 matrixdata[i]=FontROM.write(0x00);
nameless129 4:70a1803901d1 62 }
nameless129 4:70a1803901d1 63
nameless129 4:70a1803901d1 64 // Deselect the device
nameless129 4:70a1803901d1 65 FontROM_CS = 1;
nameless129 4:70a1803901d1 66 }
nameless129 4:70a1803901d1 67
MACRUM 6:bfd5c9d80f48 68 void draw_kanji_15x16(int pos_x,unsigned char color, int font_width)
nameless129 4:70a1803901d1 69 {
MACRUM 6:bfd5c9d80f48 70 for(int i=0; i<font_width; i++)
nameless129 4:70a1803901d1 71 {
nameless129 4:70a1803901d1 72 if( ((signed int)(15-i+pos_x) >= 0) && ((15-i+pos_x) <= (DISPLAY_XSIZE-1)) )
nameless129 4:70a1803901d1 73 {
nameless129 4:70a1803901d1 74 if(color == COLOR_G || color == COLOR_C || color == COLOR_Y || color == COLOR_W)
nameless129 4:70a1803901d1 75 {
nameless129 4:70a1803901d1 76 ImageBuf[0][15-i+pos_x] = matrixdata[i];
MACRUM 6:bfd5c9d80f48 77 ImageBuf[0][15-i+pos_x] |= matrixdata[i+font_width]<<8;
nameless129 4:70a1803901d1 78 }
nameless129 4:70a1803901d1 79 if(color == COLOR_R || color == COLOR_Y || color == COLOR_M || color == COLOR_W)
nameless129 4:70a1803901d1 80 {
nameless129 4:70a1803901d1 81 ImageBuf[1][15-i+pos_x] = matrixdata[i];
MACRUM 6:bfd5c9d80f48 82 ImageBuf[1][15-i+pos_x] |= matrixdata[i+font_width]<<8;
nameless129 4:70a1803901d1 83 }
nameless129 4:70a1803901d1 84 if(color == COLOR_B || color == COLOR_C || color == COLOR_M || color == COLOR_W)
nameless129 4:70a1803901d1 85 {
nameless129 4:70a1803901d1 86 ImageBuf[2][15-i+pos_x] = matrixdata[i];
MACRUM 6:bfd5c9d80f48 87 ImageBuf[2][15-i+pos_x] |= matrixdata[i+font_width]<<8;
nameless129 4:70a1803901d1 88 }
nameless129 4:70a1803901d1 89 }
nameless129 4:70a1803901d1 90 }
nameless129 4:70a1803901d1 91 }
nameless129 4:70a1803901d1 92
nameless129 4:70a1803901d1 93 void drawStr15x16(char *str ,int pos_x,unsigned char color)
nameless129 4:70a1803901d1 94 {
nameless129 4:70a1803901d1 95 unsigned char f_SJISChar = 0;
nameless129 4:70a1803901d1 96 unsigned char c = 0;
nameless129 4:70a1803901d1 97 unsigned int SJISChar = 0;
nameless129 4:70a1803901d1 98 unsigned int CountChar = 0;
nameless129 4:70a1803901d1 99
nameless129 4:70a1803901d1 100 c = *str;
nameless129 4:70a1803901d1 101 while(c != '\0')
nameless129 4:70a1803901d1 102 {
nameless129 4:70a1803901d1 103 //2バイト文字の判定
nameless129 4:70a1803901d1 104 if( ((0x81 <= c && c <= 0x9f) || (0xe0 <= c && c <= 0xfc)) && f_SJISChar != 1 )
nameless129 4:70a1803901d1 105 {
nameless129 4:70a1803901d1 106 SJISChar = c;
nameless129 4:70a1803901d1 107 f_SJISChar = 1;
nameless129 4:70a1803901d1 108 }
nameless129 4:70a1803901d1 109 else if(f_SJISChar == 1)
nameless129 4:70a1803901d1 110 {
nameless129 4:70a1803901d1 111 SJISChar = (SJISChar<<8) | c;
nameless129 4:70a1803901d1 112 f_SJISChar = 0;
nameless129 4:70a1803901d1 113 read_font(SJISChar);
MACRUM 6:bfd5c9d80f48 114 draw_kanji_15x16(pos_x-CountChar*8, color, 16);
MACRUM 6:bfd5c9d80f48 115 CountChar+=2;
nameless129 4:70a1803901d1 116 }
nameless129 4:70a1803901d1 117 else //ASCII文字
nameless129 4:70a1803901d1 118 {
nameless129 4:70a1803901d1 119 SJISChar = c;
nameless129 4:70a1803901d1 120 f_SJISChar = 0;
nameless129 4:70a1803901d1 121 read_font(SJISChar);
MACRUM 6:bfd5c9d80f48 122 draw_kanji_15x16(pos_x-CountChar*8, color, 8);
nameless129 4:70a1803901d1 123 CountChar++;
nameless129 4:70a1803901d1 124 }
nameless129 4:70a1803901d1 125 str++;
nameless129 4:70a1803901d1 126 c = *str;
nameless129 4:70a1803901d1 127 }
MACRUM 6:bfd5c9d80f48 128 }