Diff: 15x16fontsLib.cpp

Revision:

4:70a1803901d1

Child:

6:bfd5c9d80f48

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/15x16fontsLib.cpp	Thu Nov 07 15:00:28 2013 +0000
@@ -0,0 +1,119 @@
+#include "mbed.h"
+#include "displayCom.h"
+#include "15x16fontsLib.h"
+
+SPI FontROM(p11, p12, p13); // mosi, miso, sclk
+DigitalOut FontROM_CS(p14);
+
+
+unsigned char matrixdata[32];
+
+void read_font(unsigned short code) {
+    unsigned char  c1, c2, MSB,LSB;
+    uint32_t Address, seq;
+
+    // SJIS to kuten code conversion
+    c1 = (code>>8);
+    c2 = (code & 0xFF);
+    seq = (c1<=159 ? c1-129 : c1-193)*188 + (c2<=126 ? c2-64 : c2-65);
+    MSB = seq / 94 + 1;
+    LSB = seq % 94 + 1;
+    Address = 0;
+        
+    if(     MSB >=  1 && MSB <= 15 && LSB >= 1 && LSB <= 94)
+        Address =( (MSB -  1) * 94 + (LSB - 1))*32;
+    else if(MSB >= 16 && MSB <= 47 && LSB >= 1 && LSB <= 94)
+        Address =( (MSB - 16) * 94 + (LSB - 1))*32 + 0x0AA40L;
+    else if(MSB >= 48 && MSB <= 84 && LSB >= 1 && LSB <= 94)
+        Address = ((MSB - 48) * 94 + (LSB - 1))*32 + 0x21CDFL;
+    else if(MSB == 85 &&                LSB >= 1 && LSB <= 94)
+        Address = ((MSB - 85) * 94 + (LSB - 1))*32 + 0x3C4A0L;
+    else if(MSB >= 88 && MSB <= 89 && LSB >= 1 && LSB <= 94)
+        Address = ((MSB - 88) * 94 + (LSB - 1))*32 + 0x3D060L;
+    
+    // Deselect the device
+    FontROM_CS = 1;
+
+    // Setup the spi for 8 bit data, high steady state clock
+    FontROM.format(8,3);
+    FontROM.frequency(1000000); 
+    
+    // Select the device by seting chip select low
+    FontROM_CS = 0;
+    FontROM.write(0x03);    // Read data byte
+    FontROM.write(Address>>16 & 0xff);
+    FontROM.write(Address>>8 & 0xff);
+    FontROM.write(Address & 0xff);
+    
+    // Send a dummy byte to receive the contents of the WHOAMI register
+    for(int i=0; i<32; i++)
+    {
+      matrixdata[i]=FontROM.write(0x00);
+    }
+
+    // Deselect the device
+    FontROM_CS = 1;
+}
+
+void draw_kanji_15x16(int pos_x,unsigned char color)
+{
+    int i = 0;
+    for(i=0;i<16;i++)
+    {
+        if( ((signed int)(15-i+pos_x) >= 0) && ((15-i+pos_x) <= (DISPLAY_XSIZE-1)) )
+        {
+            if(color == COLOR_G || color == COLOR_C || color == COLOR_Y || color == COLOR_W)
+            {
+                ImageBuf[0][15-i+pos_x] =  matrixdata[i];
+                ImageBuf[0][15-i+pos_x] |= matrixdata[i+16]<<8;
+            }
+            if(color == COLOR_R || color == COLOR_Y || color == COLOR_M || color == COLOR_W)
+            {
+                ImageBuf[1][15-i+pos_x] =  matrixdata[i];
+                ImageBuf[1][15-i+pos_x] |= matrixdata[i+16]<<8;
+            }
+            if(color == COLOR_B || color == COLOR_C || color == COLOR_M || color == COLOR_W)
+            {
+                ImageBuf[2][15-i+pos_x] =  matrixdata[i];
+                ImageBuf[2][15-i+pos_x] |= matrixdata[i+16]<<8;
+            }
+        }
+    }
+}
+
+void drawStr15x16(char *str ,int pos_x,unsigned char color)
+{
+    unsigned char   f_SJISChar = 0;
+    unsigned char   c = 0;
+    unsigned int    SJISChar = 0;
+    unsigned int    CountChar = 0;
+
+    c = *str;
+    while(c != '\0')
+    {
+        //2バイト文字の判定
+        if( ((0x81 <= c && c <= 0x9f) || (0xe0 <= c && c <= 0xfc)) && f_SJISChar != 1 )
+        {
+            SJISChar = c;
+            f_SJISChar = 1;
+        }
+        else if(f_SJISChar == 1)
+        {
+            SJISChar = (SJISChar<<8) | c;
+            f_SJISChar = 0;
+            read_font(SJISChar);
+            draw_kanji_15x16(pos_x-CountChar*16,color);
+            CountChar++;
+        }
+        else  //ASCII文字
+        {
+            SJISChar = c;
+            f_SJISChar = 0;
+            read_font(SJISChar);
+            draw_kanji_15x16(pos_x-CountChar*16,color);
+            CountChar++;
+        }
+        str++;
+        c = *str;
+    }
+}
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