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[SOLVED] -- display large characters ---

Ciuffoly www.audiodesignguide
Senior

‎2020-03-23 01:36 AM

I need to display large characters to show the dB of attenuation of my preampl.

I have found a good font but the BSP_LCD_DisplayStringAt and DrawChar are not able to use this font, only half of the left section of the character is print.

So I have develop a new function DrawCharNew().

Here there is also the debug program running on Cygwin64.

#include <stdio.h>
 
char Shruti_Bold_num_48x70[5044] ={
0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x7F,0xFC,0x00,0x00, 0x00,0x03,0xFF,0xFF,0x80,0x00, 0x00,0x0F,0xFF,0xFF,0xE0,0x00, 0x00,0x1F,0xFF,0xFF,0xF0,0x00, 0x00,0x3F,0xFF,0xFF,0xF8,0x00, 0x00,0x7F,0xFF,0xFF,0xFC,0x00, 0x00,0xFF,0xFF,0xFF,0xFE,0x00, 0x01,0xFF,0xFF,0xFF,0xFF,0x00, 0x03,0xFF,0xF8,0x1F,0xFF,0x80, 0x03,0xFF,0xC0,0x07,0xFF,0x80, 0x07,0xFF,0x80,0x03,0xFF,0xC0, 0x07,0xFF,0x00,0x01,0xFF,0xC0, 0x0F,0xFF,0x00,0x00,0xFF,0xE0, 0x0F,0xFE,0x00,0x00,0xFF,0xE0, 0x0F,0xFE,0x00,0x00,0x7F,0xF0, 0x1F,0xFC,0x00,0x00,0x7F,0xF0, 0x1F,0xFC,0x00,0x00,0x7F,0xF0,0x1F,0xFC,0x00,0x00,0x3F,0xF8,0x1F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x1F,0xFC,0x3F,0xF0,0x00,0x00,0x1F,0xFC,0x3F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x3F,0xF0,0x00,0x00,0x1F,0xFC,0x3F,0xF0,0x00,0x00,0x1F,0xFC,0x3F,0xF8,0x00,0x00,0x1F,0xFC,0x3F,0xF8,0x00,0x00,0x1F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x1F,0xF8,0x00,0x00,0x3F,0xF8,0x1F,0xFC,0x00,0x00,0x3F,0xF8,0x1F,0xFC,0x00,0x00,0x7F,0xF0,0x1F,0xFC,0x00,0x00,0x7F,0xF0,0x0F,0xFE,0x00,0x00,0x7F,0xF0,0x0F,0xFE,0x00,0x00,0xFF,0xE0,0x0F,0xFF,0x00,0x00,0xFF,0xE0,0x07,0xFF,0x00,0x01,0xFF,0xC0,0x07,0xFF,0x80,0x03,0xFF,0xC0,0x03,0xFF,0xC0,0x07,0xFF,0x80,0x01,0xFF,0xF8,0x3F,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,0xFF,0xFF,0xFE,0x00,0x00,0x7F,0xFF,0xFF,0xFC,0x00,0x00,0x3F,0xFF,0xFF,0xF8,0x00,0x00,0x1F,0xFF,0xFF,0xF0,0x00,0x00,0x07,0xFF,0xFF,0xE0,0x00,0x00,0x01,0xFF,0xFF,0x00,0x00,0x00,0x00,0x3F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00  // 0
};
 
char Font_17x24[] = {
        // @1152 '0' (17 pixels wide)
        0x00, 0x00, 0x00, //
        0x00, 0x00, 0x00, //
        0x03, 0xC0, 0x00, //       ####
        0x07, 0xE0, 0x00, //      ######
        0x0C, 0x30, 0x00, //     ##    ##
        0x0C, 0x30, 0x00, //     ##    ##
        0x18, 0x18, 0x00, //    ##      ##
        0x18, 0x18, 0x00, //    ##      ##
        0x18, 0x18, 0x00, //    ##      ##
        0x18, 0x18, 0x00, //    ##      ##
        0x18, 0x18, 0x00, //    ##      ##
        0x18, 0x18, 0x00, //    ##      ##
        0x18, 0x18, 0x00, //    ##      ##
        0x0C, 0x30, 0x00, //     ##    ##
        0x0C, 0x30, 0x00, //     ##    ##
        0x07, 0xE0, 0x00, //      ######
        0x03, 0xC0, 0x00, //       ####
        0x00, 0x00, 0x00, //
        0x00, 0x00, 0x00, //
        0x00, 0x00, 0x00, //
        0x00, 0x00, 0x00, //
        0x00, 0x00, 0x00, //
        0x00, 0x00, 0x00, //
        0x00, 0x00, 0x00, //
};
 
int main()
{
        int i, j;
        //int w = 17, h = 24;
        int w = 48, h = 70;
 
        int s = (w + 7) / 8;
 
        for (i = j = 0; i < (s * h); i++)
        {
             //print_bits(Font_17x24[i]);
             print_bits(Shruti_Bold_num_48x70[i]);
 
             if (j == (s - 1))
             {
                 printf("\n");
                 j=0;
             }
             else
             {
                 j++;
             }
        }
}
 
void print_bits(unsigned char x)
{
    int i;
    for(i=8*sizeof(x)-1; i>=0; i--) {
        (x & (1 << i)) ? putchar('X') : putchar(' ');
    }
    printf(" ");
}

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2 REPLIES 2
Ciuffoly www.audiodesignguide
Senior

‎2020-03-23 01:39 AM

Here the STM32 code to solve the problem.

void DrawCharNew(uint16_t Xpos, uint16_t Ypos, uint8_t ind, sFONT * font)

{

   uint32_t j = 0, k = 0;

   unsigned char x;

   int      i;

   int      s;

   uint16_t height;

   uint16_t width;

   uint8_t * c;

   height = font->Height;

   width = font->Width;

   s = (width + 7) / 8;

   c = (uint8_t *)&font->table[ind * height * ((width + 7) / 8)];

   for (k = j = 0; k < (s * height); k++)

   {

      x = *((unsigned char *)c + k);

      for(i = 7; i >= 0; i--)

      {

         if (x & (1 << i))

            BSP_LCD_DrawPixel((Xpos + (7 - i)) + (j * 8), Ypos, LCD_COLOR_BLACK);

         else

            BSP_LCD_DrawPixel((Xpos + (7 - i)) + (j * 8), Ypos, LCD_COLOR_WHITE);

      }

      if (j == (s - 1))

      {

         Ypos++;

          j=0;

      }

      else

      {

          j++;

      }

   }

}

0 Kudos
Ciuffoly www.audiodesignguide
Senior

‎2020-03-23 01:41 AM 

const uint8_t  Shruti_Bold_num_48x70[] ={
//0x30,0x46,0x30,0x0B,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0xFC,0x00,0x00,0x00,0x03,0xFF,0xFF,0x80,0x00,0x00,0x0F,0xFF,0xFF,0xE0,0x00,0x00,0x1F,0xFF,0xFF,0xF0,0x00,0x00,0x3F,0xFF,0xFF,0xF8,0x00,0x00,0x7F,0xFF,0xFF,0xFC,0x00,0x00,0xFF,0xFF,0xFF,0xFE,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0x00,0x03,0xFF,0xF8,0x1F,0xFF,0x80,0x03,0xFF,0xC0,0x07,0xFF,0x80,0x07,0xFF,0x80,0x03,0xFF,0xC0,0x07,0xFF,0x00,0x01,0xFF,0xC0,0x0F,0xFF,0x00,0x00,0xFF,0xE0,0x0F,0xFE,0x00,0x00,0xFF,0xE0,0x0F,0xFE,0x00,0x00,0x7F,0xF0,0x1F,0xFC,0x00,0x00,0x7F,0xF0,0x1F,0xFC,0x00,0x00,0x7F,0xF0,0x1F,0xFC,0x00,0x00,0x3F,0xF8,0x1F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x1F,0xFC,0x3F,0xF0,0x00,0x00,0x1F,0xFC,0x3F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x7F,0xF0,0x00,0x00,0x1F,0xFC,0x3F,0xF0,0x00,0x00,0x1F,0xFC,0x3F,0xF0,0x00,0x00,0x1F,0xFC,0x3F,0xF8,0x00,0x00,0x1F,0xFC,0x3F,0xF8,0x00,0x00,0x1F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x3F,0xF8,0x00,0x00,0x3F,0xF8,0x1F,0xF8,0x00,0x00,0x3F,0xF8,0x1F,0xFC,0x00,0x00,0x3F,0xF8,0x1F,0xFC,0x00,0x00,0x7F,0xF0,0x1F,0xFC,0x00,0x00,0x7F,0xF0,0x0F,0xFE,0x00,0x00,0x7F,0xF0,0x0F,0xFE,0x00,0x00,0xFF,0xE0,0x0F,0xFF,0x00,0x00,0xFF,0xE0,0x07,0xFF,0x00,0x01,0xFF,0xC0,0x07,0xFF,0x80,0x03,0xFF,0xC0,0x03,0xFF,0xC0,0x07,0xFF,0x80,0x01,0xFF,0xF8,0x3F,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF,0xFF,0xFF,0xFE,0x00,0x00,0x7F,0xFF,0xFF,0xFC,0x00,0x00,0x3F,0xFF,0xFF,0xF8,0x00,0x00,0x1F,0xFF,0xFF,0xF0,0x00,0x00,0x07,0xFF,0xFF,0xE0,0x00,0x00,0x01,0xFF,0xFF,0x00,0x00,0x00,0x00,0x3F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  // 0
.....
};
 
sFONT Font48 = {
  Shruti_Bold_num_48x70,
  48, /* Width */
  70, /* Height */
};
 
 

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