upm/src/ili9341/ili9341_gfx.cxx

/**
 * Author: Shawn Hymel
 * Copyright (c) 2016 SparkFun Electronics
 *
 * Based on GFX interface by Yevgeniy Kiveisha and Adafruit Industries.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include "ili9341_gfx.hpp"
#include "mraa.hpp"

using namespace upm;

GFX::GFX(int16_t w, int16_t h) : WIDTH(w), HEIGHT(h) {
    _width = WIDTH;
    _height = HEIGHT;
    rotation = 0;
    
    cursor_x = 0;
    cursor_y = 0;
    textsize = 1;
    textcolor = 0xFFFF;
    textbgcolor = 0xFFFF;
    wrap = true;
    _cp437 = false;
}

void GFX::drawLine(int16_t x0, 
                   int16_t y0, 
                   int16_t x1, 
                   int16_t y1, 
                   uint16_t color) {
                   
    int16_t steep = abs(y1 - y0) > abs(x1 - x0);
    if (steep) {
        adagfxswap(x0, y0);
        adagfxswap(x1, y1);
    }

    if (x0 > x1) {
        adagfxswap(x0, x1);
        adagfxswap(y0, y1);
    }

    int16_t dx, dy;
    dx = x1 - x0;
    dy = abs(y1 - y0);

    int16_t err = dx / 2;
    int16_t ystep;

    if (y0 < y1) {
        ystep = 1;
    } else {
        ystep = -1;
    }

    for (; x0<=x1; x0++) {
        if (steep) {
            drawPixel(y0, x0, color);
        } else {
            drawPixel(x0, y0, color);
        }
        err -= dy;
        if (err < 0) {
            y0 += ystep;
          err += dx;
        }
    }
}

void GFX::drawFastVLine(int16_t x, 
                        int16_t y, 
                        int16_t h, 
                        uint16_t color) {
    drawLine(x, y, x, y+h-1, color);
}

void GFX::drawFastHLine(int16_t x, 
                        int16_t y, 
                        int16_t w, 
                        uint16_t color) {
    drawLine(x, y, x+w-1, y, color);
}

void GFX::drawRect(int16_t x, 
                   int16_t y, 
                   int16_t w, 
                   int16_t h, 
                   uint16_t color) {
    drawFastHLine(x, y, w, color);
    drawFastHLine(x, y+h-1, w, color);
    drawFastVLine(x, y, h, color);
    drawFastVLine(x+w-1, y, h, color);
}

void GFX::fillRect(int16_t x, 
                   int16_t y, 
                   int16_t w, 
                   int16_t h, 
                   uint16_t color) {
    for (int16_t i=x; i<x+w; i++) {
        drawFastVLine(i, y, h, color);
    }
}

void GFX::fillScreen(uint16_t color) {
    fillRect(0, 0, _width, _height, color);
}

void GFX::invertDisplay(bool i) {
    // Do nothing, must be subclassed if supported by hardware
}

void GFX::drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color) {
    int16_t f = 1 - r;
    int16_t ddF_x = 1;
    int16_t ddF_y = -2 * r;
    int16_t x = 0;
    int16_t y = r;

    drawPixel(x0  , y0+r, color);
    drawPixel(x0  , y0-r, color);
    drawPixel(x0+r, y0  , color);
    drawPixel(x0-r, y0  , color);

    while (x<y) {
        if (f >= 0) {
            y--;
            ddF_y += 2;
            f += ddF_y;
        }
        x++;
        ddF_x += 2;
        f += ddF_x;

        drawPixel(x0 + x, y0 + y, color);
        drawPixel(x0 - x, y0 + y, color);
        drawPixel(x0 + x, y0 - y, color);
        drawPixel(x0 - x, y0 - y, color);
        drawPixel(x0 + y, y0 + x, color);
        drawPixel(x0 - y, y0 + x, color);
        drawPixel(x0 + y, y0 - x, color);
        drawPixel(x0 - y, y0 - x, color);
    }
}

void GFX::drawCircleHelper(int16_t x0, 
                           int16_t y0, 
                           int16_t r, 
                           uint8_t cornername,
                           uint16_t color) {
    int16_t f     = 1 - r;
    int16_t ddF_x = 1;
    int16_t ddF_y = -2 * r;
    int16_t x     = 0;
    int16_t y     = r;

    while (x<y) {
        if (f >= 0) {
            y--;
            ddF_y += 2;
            f     += ddF_y;
        }
        x++;
        ddF_x += 2;
        f     += ddF_x;
        if (cornername & 0x4) {
            drawPixel(x0 + x, y0 + y, color);
            drawPixel(x0 + y, y0 + x, color);
        }
        if (cornername & 0x2) {
            drawPixel(x0 + x, y0 - y, color);
            drawPixel(x0 + y, y0 - x, color);
        }
        if (cornername & 0x8) {
            drawPixel(x0 - y, y0 + x, color);
            drawPixel(x0 - x, y0 + y, color);
        }
        if (cornername & 0x1) {
            drawPixel(x0 - y, y0 - x, color);
            drawPixel(x0 - x, y0 - y, color);
        }
    }
}

void GFX::fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color) {
    drawFastVLine(x0, y0-r, 2*r+1, color);
    fillCircleHelper(x0, y0, r, 3, 0, color);
}

void GFX::fillCircleHelper(int16_t x0, 
                           int16_t y0, 
                           int16_t r, 
                           uint8_t cornername,
                           int16_t delta,
                           uint16_t color) {
    int16_t f     = 1 - r;
    int16_t ddF_x = 1;
    int16_t ddF_y = -2 * r;
    int16_t x     = 0;
    int16_t y     = r;

    while (x<y) {
        if (f >= 0) {
            y--;
            ddF_y += 2;
            f     += ddF_y;
        }
        x++;
        ddF_x += 2;
        f     += ddF_x;

        if (cornername & 0x1) {
            drawFastVLine(x0+x, y0-y, 2*y+1+delta, color);
            drawFastVLine(x0+y, y0-x, 2*x+1+delta, color);
        }
        if (cornername & 0x2) {
            drawFastVLine(x0-x, y0-y, 2*y+1+delta, color);
            drawFastVLine(x0-y, y0-x, 2*x+1+delta, color);
        }
    }
}

void GFX::drawTriangle(int16_t x0, 
                       int16_t y0,
                       int16_t x1, 
                       int16_t y1, 
                       int16_t x2, 
                       int16_t y2, 
                       uint16_t color) {
  drawLine(x0, y0, x1, y1, color);
  drawLine(x1, y1, x2, y2, color);
  drawLine(x2, y2, x0, y0, color);
}

void GFX::fillTriangle(int16_t x0, 
                       int16_t y0,
                       int16_t x1, 
                       int16_t y1,
                       int16_t x2, 
                       int16_t y2, 
                       uint16_t color) {

  int16_t a, b, y, last;

  // Sort coordinates by Y order (y2 >= y1 >= y0)
  if (y0 > y1) {
    adagfxswap(y0, y1); adagfxswap(x0, x1);
  }
  if (y1 > y2) {
    adagfxswap(y2, y1); adagfxswap(x2, x1);
  }
  if (y0 > y1) {
    adagfxswap(y0, y1); adagfxswap(x0, x1);
  }

  if(y0 == y2) { // Handle awkward all-on-same-line case as its own thing
    a = b = x0;
    if(x1 < a)      a = x1;
    else if(x1 > b) b = x1;
    if(x2 < a)      a = x2;
    else if(x2 > b) b = x2;
    drawFastHLine(a, y0, b-a+1, color);
    return;
  }

  int16_t
    dx01 = x1 - x0,
    dy01 = y1 - y0,
    dx02 = x2 - x0,
    dy02 = y2 - y0,
    dx12 = x2 - x1,
    dy12 = y2 - y1;
  int32_t
    sa   = 0,
    sb   = 0;

  // For upper part of triangle, find scanline crossings for segments
  // 0-1 and 0-2.  If y1=y2 (flat-bottomed triangle), the scanline y1
  // is included here (and second loop will be skipped, avoiding a /0
  // error there), otherwise scanline y1 is skipped here and handled
  // in the second loop...which also avoids a /0 error here if y0=y1
  // (flat-topped triangle).
  if(y1 == y2) last = y1;   // Include y1 scanline
  else         last = y1-1; // Skip it

  for(y=y0; y<=last; y++) {
    a   = x0 + sa / dy01;
    b   = x0 + sb / dy02;
    sa += dx01;
    sb += dx02;
    /* longhand:
    a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
    b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
    */
    if(a > b) adagfxswap(a,b);
    drawFastHLine(a, y, b-a+1, color);
  }

  // For lower part of triangle, find scanline crossings for segments
  // 0-2 and 1-2.  This loop is skipped if y1=y2.
  sa = dx12 * (y - y1);
  sb = dx02 * (y - y0);
  for(; y<=y2; y++) {
    a   = x1 + sa / dy12;
    b   = x0 + sb / dy02;
    sa += dx12;
    sb += dx02;
    /* longhand:
    a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
    b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
    */
    if(a > b) adagfxswap(a,b);
    drawFastHLine(a, y, b-a+1, color);
  }
}

// Draw a rounded rectangle
void GFX::drawRoundRect(int16_t x, 
                        int16_t y, 
                        int16_t w,
                        int16_t h, 
                        int16_t r, 
                        uint16_t color) {
                        
  // smarter version
  drawFastHLine(x+r  , y    , w-2*r, color); // Top
  drawFastHLine(x+r  , y+h-1, w-2*r, color); // Bottom
  drawFastVLine(x    , y+r  , h-2*r, color); // Left
  drawFastVLine(x+w-1, y+r  , h-2*r, color); // Right
  // draw four corners
  drawCircleHelper(x+r    , y+r    , r, 1, color);
  drawCircleHelper(x+w-r-1, y+r    , r, 2, color);
  drawCircleHelper(x+w-r-1, y+h-r-1, r, 4, color);
  drawCircleHelper(x+r    , y+h-r-1, r, 8, color);
}

void GFX::fillRoundRect(int16_t x, 
                        int16_t y, 
                        int16_t w,
                        int16_t h, 
                        int16_t r, 
                        uint16_t color) {
                        
  // smarter version
  fillRect(x+r, y, w-2*r, h, color);

  // draw four corners
  fillCircleHelper(x+w-r-1, y+r, r, 1, h-2*r-1, color);
  fillCircleHelper(x+r    , y+r, r, 2, h-2*r-1, color);
}

void GFX::drawChar(int16_t x, 
                  int16_t y, 
                  unsigned char c,
                  uint16_t color, 
                  uint16_t bg, 
                  uint8_t size) {

    if((x >= _width)            || // Clip right
       (y >= _height)           || // Clip bottom
       ((x + 6 * size - 1) < 0) || // Clip left
       ((y + 8 * size - 1) < 0))   // Clip top
        return;

    if(!_cp437 && (c >= 176)) c++; // Handle 'classic' charset behavior

    for(int8_t i=0; i<6; i++ ) {
        uint8_t line;
        if(i < 5) line = font[(c * 5) + i];
        else      line = 0x0;
        for(int8_t j=0; j<8; j++, line >>= 1) {
            if(line & 0x1) {
                if(size == 1) drawPixel(x+i, y+j, color);
                else          fillRect(x+(i*size), y+(j*size), size, size, color);
            } else if(bg != color) {
                if(size == 1) drawPixel(x+i, y+j, bg);
                else          fillRect(x+i*size, y+j*size, size, size, bg);
            }
        }
    }
}

int16_t GFX::getCursorX(void) const {
    return cursor_x;
}

int16_t GFX::getCursorY(void) const {
    return cursor_y;
}

void GFX::setCursor(int16_t x, int16_t y) {
    cursor_x = x;
    cursor_y = y;
}

void GFX::setTextColor(uint16_t c) {
    // For 'transparent' background, we'll set the bg
    // to the same as fg instead of using a flag
    textcolor = textbgcolor = c;
}

void GFX::setTextColor(uint16_t c, uint16_t bg) {
    textcolor = c;
    textbgcolor = bg;
}

void GFX::setTextSize(uint8_t s) {
    textsize = (s > 0) ? s : 1;
}

void GFX::setTextWrap(bool w) {
    wrap = w;
}

uint8_t GFX::getRotation(void) const {
    return rotation;
}

void GFX::setRotation(uint8_t r) {
    rotation = (r & 3);
    switch(rotation) {
        case 0:
        case 2:
            _width  = WIDTH;
            _height = HEIGHT;
            break;
        case 1:
        case 3:
            _width  = HEIGHT;
            _height = WIDTH;
            break;
    }
}

void GFX::cp437(bool x) {
    _cp437 = x;
}

void GFX::write(uint8_t c) {
    
    if(c == '\n') {
        cursor_y += textsize*8;
        cursor_x  = 0;
    } else if(c == '\r') {
        // skip em
    } else {
    
        // Heading off edge?
        if(wrap && ((cursor_x + textsize * 6) >= _width)) {
            cursor_x  = 0;            // Reset x to zero
            cursor_y += textsize * 8; // Advance y one line
        }
        drawChar(cursor_x, cursor_y, c, textcolor, textbgcolor, textsize);
        cursor_x += textsize * 6;
    }
}

void GFX::print(std::string msg) {
    int len = msg.length();
    for (int idx = 0; idx < len; idx++) {
        write(msg[idx]);
    }
}

int16_t GFX::width(void) const {
    return _width;
}

int16_t GFX::height(void) const {
    return _height;
}

const unsigned char GFX::font[] = {    
    0x00, 0x00, 0x00, 0x00, 0x00,
    0x3E, 0x5B, 0x4F, 0x5B, 0x3E,
    0x3E, 0x6B, 0x4F, 0x6B, 0x3E,
    0x1C, 0x3E, 0x7C, 0x3E, 0x1C,
    0x18, 0x3C, 0x7E, 0x3C, 0x18,
    0x1C, 0x57, 0x7D, 0x57, 0x1C,
    0x1C, 0x5E, 0x7F, 0x5E, 0x1C,
    0x00, 0x18, 0x3C, 0x18, 0x00,
    0xFF, 0xE7, 0xC3, 0xE7, 0xFF,
    0x00, 0x18, 0x24, 0x18, 0x00,
    0xFF, 0xE7, 0xDB, 0xE7, 0xFF,
    0x30, 0x48, 0x3A, 0x06, 0x0E,
    0x26, 0x29, 0x79, 0x29, 0x26,
    0x40, 0x7F, 0x05, 0x05, 0x07,
    0x40, 0x7F, 0x05, 0x25, 0x3F,
    0x5A, 0x3C, 0xE7, 0x3C, 0x5A,
    0x7F, 0x3E, 0x1C, 0x1C, 0x08,
    0x08, 0x1C, 0x1C, 0x3E, 0x7F,
    0x14, 0x22, 0x7F, 0x22, 0x14,
    0x5F, 0x5F, 0x00, 0x5F, 0x5F,
    0x06, 0x09, 0x7F, 0x01, 0x7F,
    0x00, 0x66, 0x89, 0x95, 0x6A,
    0x60, 0x60, 0x60, 0x60, 0x60,
    0x94, 0xA2, 0xFF, 0xA2, 0x94,
    0x08, 0x04, 0x7E, 0x04, 0x08,
    0x10, 0x20, 0x7E, 0x20, 0x10,
    0x08, 0x08, 0x2A, 0x1C, 0x08,
    0x08, 0x1C, 0x2A, 0x08, 0x08,
    0x1E, 0x10, 0x10, 0x10, 0x10,
    0x0C, 0x1E, 0x0C, 0x1E, 0x0C,
    0x30, 0x38, 0x3E, 0x38, 0x30,
    0x06, 0x0E, 0x3E, 0x0E, 0x06,
    0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x5F, 0x00, 0x00,
    0x00, 0x07, 0x00, 0x07, 0x00,
    0x14, 0x7F, 0x14, 0x7F, 0x14,
    0x24, 0x2A, 0x7F, 0x2A, 0x12,
    0x23, 0x13, 0x08, 0x64, 0x62,
    0x36, 0x49, 0x56, 0x20, 0x50,
    0x00, 0x08, 0x07, 0x03, 0x00,
    0x00, 0x1C, 0x22, 0x41, 0x00,
    0x00, 0x41, 0x22, 0x1C, 0x00,
    0x2A, 0x1C, 0x7F, 0x1C, 0x2A,
    0x08, 0x08, 0x3E, 0x08, 0x08,
    0x00, 0x80, 0x70, 0x30, 0x00,
    0x08, 0x08, 0x08, 0x08, 0x08,
    0x00, 0x00, 0x60, 0x60, 0x00,
    0x20, 0x10, 0x08, 0x04, 0x02,
    0x3E, 0x51, 0x49, 0x45, 0x3E,
    0x00, 0x42, 0x7F, 0x40, 0x00,
    0x72, 0x49, 0x49, 0x49, 0x46,
    0x21, 0x41, 0x49, 0x4D, 0x33,
    0x18, 0x14, 0x12, 0x7F, 0x10,
    0x27, 0x45, 0x45, 0x45, 0x39,
    0x3C, 0x4A, 0x49, 0x49, 0x31,
    0x41, 0x21, 0x11, 0x09, 0x07,
    0x36, 0x49, 0x49, 0x49, 0x36,
    0x46, 0x49, 0x49, 0x29, 0x1E,
    0x00, 0x00, 0x14, 0x00, 0x00,
    0x00, 0x40, 0x34, 0x00, 0x00,
    0x00, 0x08, 0x14, 0x22, 0x41,
    0x14, 0x14, 0x14, 0x14, 0x14,
    0x00, 0x41, 0x22, 0x14, 0x08,
    0x02, 0x01, 0x59, 0x09, 0x06,
    0x3E, 0x41, 0x5D, 0x59, 0x4E,
    0x7C, 0x12, 0x11, 0x12, 0x7C,
    0x7F, 0x49, 0x49, 0x49, 0x36,
    0x3E, 0x41, 0x41, 0x41, 0x22,
    0x7F, 0x41, 0x41, 0x41, 0x3E,
    0x7F, 0x49, 0x49, 0x49, 0x41,
    0x7F, 0x09, 0x09, 0x09, 0x01,
    0x3E, 0x41, 0x41, 0x51, 0x73,
    0x7F, 0x08, 0x08, 0x08, 0x7F,
    0x00, 0x41, 0x7F, 0x41, 0x00,
    0x20, 0x40, 0x41, 0x3F, 0x01,
    0x7F, 0x08, 0x14, 0x22, 0x41,
    0x7F, 0x40, 0x40, 0x40, 0x40,
    0x7F, 0x02, 0x1C, 0x02, 0x7F,
    0x7F, 0x04, 0x08, 0x10, 0x7F,
    0x3E, 0x41, 0x41, 0x41, 0x3E,
    0x7F, 0x09, 0x09, 0x09, 0x06,
    0x3E, 0x41, 0x51, 0x21, 0x5E,
    0x7F, 0x09, 0x19, 0x29, 0x46,
    0x26, 0x49, 0x49, 0x49, 0x32,
    0x03, 0x01, 0x7F, 0x01, 0x03,
    0x3F, 0x40, 0x40, 0x40, 0x3F,
    0x1F, 0x20, 0x40, 0x20, 0x1F,
    0x3F, 0x40, 0x38, 0x40, 0x3F,
    0x63, 0x14, 0x08, 0x14, 0x63,
    0x03, 0x04, 0x78, 0x04, 0x03,
    0x61, 0x59, 0x49, 0x4D, 0x43,
    0x00, 0x7F, 0x41, 0x41, 0x41,
    0x02, 0x04, 0x08, 0x10, 0x20,
    0x00, 0x41, 0x41, 0x41, 0x7F,
    0x04, 0x02, 0x01, 0x02, 0x04,
    0x40, 0x40, 0x40, 0x40, 0x40,
    0x00, 0x03, 0x07, 0x08, 0x00,
    0x20, 0x54, 0x54, 0x78, 0x40,
    0x7F, 0x28, 0x44, 0x44, 0x38,
    0x38, 0x44, 0x44, 0x44, 0x28,
    0x38, 0x44, 0x44, 0x28, 0x7F,
    0x38, 0x54, 0x54, 0x54, 0x18,
    0x00, 0x08, 0x7E, 0x09, 0x02,
    0x18, 0xA4, 0xA4, 0x9C, 0x78,
    0x7F, 0x08, 0x04, 0x04, 0x78,
    0x00, 0x44, 0x7D, 0x40, 0x00,
    0x20, 0x40, 0x40, 0x3D, 0x00,
    0x7F, 0x10, 0x28, 0x44, 0x00,
    0x00, 0x41, 0x7F, 0x40, 0x00,
    0x7C, 0x04, 0x78, 0x04, 0x78,
    0x7C, 0x08, 0x04, 0x04, 0x78,
    0x38, 0x44, 0x44, 0x44, 0x38,
    0xFC, 0x18, 0x24, 0x24, 0x18,
    0x18, 0x24, 0x24, 0x18, 0xFC,
    0x7C, 0x08, 0x04, 0x04, 0x08,
    0x48, 0x54, 0x54, 0x54, 0x24,
    0x04, 0x04, 0x3F, 0x44, 0x24,
    0x3C, 0x40, 0x40, 0x20, 0x7C,
    0x1C, 0x20, 0x40, 0x20, 0x1C,
    0x3C, 0x40, 0x30, 0x40, 0x3C,
    0x44, 0x28, 0x10, 0x28, 0x44,
    0x4C, 0x90, 0x90, 0x90, 0x7C,
    0x44, 0x64, 0x54, 0x4C, 0x44,
    0x00, 0x08, 0x36, 0x41, 0x00,
    0x00, 0x00, 0x77, 0x00, 0x00,
    0x00, 0x41, 0x36, 0x08, 0x00,
    0x02, 0x01, 0x02, 0x04, 0x02,
    0x3C, 0x26, 0x23, 0x26, 0x3C,
    0x1E, 0xA1, 0xA1, 0x61, 0x12,
    0x3A, 0x40, 0x40, 0x20, 0x7A,
    0x38, 0x54, 0x54, 0x55, 0x59,
    0x21, 0x55, 0x55, 0x79, 0x41,
    0x22, 0x54, 0x54, 0x78, 0x42, // a-umlaut
    0x21, 0x55, 0x54, 0x78, 0x40,
    0x20, 0x54, 0x55, 0x79, 0x40,
    0x0C, 0x1E, 0x52, 0x72, 0x12,
    0x39, 0x55, 0x55, 0x55, 0x59,
    0x39, 0x54, 0x54, 0x54, 0x59,
    0x39, 0x55, 0x54, 0x54, 0x58,
    0x00, 0x00, 0x45, 0x7C, 0x41,
    0x00, 0x02, 0x45, 0x7D, 0x42,
    0x00, 0x01, 0x45, 0x7C, 0x40,
    0x7D, 0x12, 0x11, 0x12, 0x7D, // A-umlaut
    0xF0, 0x28, 0x25, 0x28, 0xF0,
    0x7C, 0x54, 0x55, 0x45, 0x00,
    0x20, 0x54, 0x54, 0x7C, 0x54,
    0x7C, 0x0A, 0x09, 0x7F, 0x49,
    0x32, 0x49, 0x49, 0x49, 0x32,
    0x3A, 0x44, 0x44, 0x44, 0x3A, // o-umlaut
    0x32, 0x4A, 0x48, 0x48, 0x30,
    0x3A, 0x41, 0x41, 0x21, 0x7A,
    0x3A, 0x42, 0x40, 0x20, 0x78,
    0x00, 0x9D, 0xA0, 0xA0, 0x7D,
    0x3D, 0x42, 0x42, 0x42, 0x3D, // O-umlaut
    0x3D, 0x40, 0x40, 0x40, 0x3D,
    0x3C, 0x24, 0xFF, 0x24, 0x24,
    0x48, 0x7E, 0x49, 0x43, 0x66,
    0x2B, 0x2F, 0xFC, 0x2F, 0x2B,
    0xFF, 0x09, 0x29, 0xF6, 0x20,
    0xC0, 0x88, 0x7E, 0x09, 0x03,
    0x20, 0x54, 0x54, 0x79, 0x41,
    0x00, 0x00, 0x44, 0x7D, 0x41,
    0x30, 0x48, 0x48, 0x4A, 0x32,
    0x38, 0x40, 0x40, 0x22, 0x7A,
    0x00, 0x7A, 0x0A, 0x0A, 0x72,
    0x7D, 0x0D, 0x19, 0x31, 0x7D,
    0x26, 0x29, 0x29, 0x2F, 0x28,
    0x26, 0x29, 0x29, 0x29, 0x26,
    0x30, 0x48, 0x4D, 0x40, 0x20,
    0x38, 0x08, 0x08, 0x08, 0x08,
    0x08, 0x08, 0x08, 0x08, 0x38,
    0x2F, 0x10, 0xC8, 0xAC, 0xBA,
    0x2F, 0x10, 0x28, 0x34, 0xFA,
    0x00, 0x00, 0x7B, 0x00, 0x00,
    0x08, 0x14, 0x2A, 0x14, 0x22,
    0x22, 0x14, 0x2A, 0x14, 0x08,
    0x55, 0x00, 0x55, 0x00, 0x55, // #176 (25% block) missing in old code
    0xAA, 0x55, 0xAA, 0x55, 0xAA, // 50% block
    0xFF, 0x55, 0xFF, 0x55, 0xFF, // 75% block
    0x00, 0x00, 0x00, 0xFF, 0x00,
    0x10, 0x10, 0x10, 0xFF, 0x00,
    0x14, 0x14, 0x14, 0xFF, 0x00,
    0x10, 0x10, 0xFF, 0x00, 0xFF,
    0x10, 0x10, 0xF0, 0x10, 0xF0,
    0x14, 0x14, 0x14, 0xFC, 0x00,
    0x14, 0x14, 0xF7, 0x00, 0xFF,
    0x00, 0x00, 0xFF, 0x00, 0xFF,
    0x14, 0x14, 0xF4, 0x04, 0xFC,
    0x14, 0x14, 0x17, 0x10, 0x1F,
    0x10, 0x10, 0x1F, 0x10, 0x1F,
    0x14, 0x14, 0x14, 0x1F, 0x00,
    0x10, 0x10, 0x10, 0xF0, 0x00,
    0x00, 0x00, 0x00, 0x1F, 0x10,
    0x10, 0x10, 0x10, 0x1F, 0x10,
    0x10, 0x10, 0x10, 0xF0, 0x10,
    0x00, 0x00, 0x00, 0xFF, 0x10,
    0x10, 0x10, 0x10, 0x10, 0x10,
    0x10, 0x10, 0x10, 0xFF, 0x10,
    0x00, 0x00, 0x00, 0xFF, 0x14,
    0x00, 0x00, 0xFF, 0x00, 0xFF,
    0x00, 0x00, 0x1F, 0x10, 0x17,
    0x00, 0x00, 0xFC, 0x04, 0xF4,
    0x14, 0x14, 0x17, 0x10, 0x17,
    0x14, 0x14, 0xF4, 0x04, 0xF4,
    0x00, 0x00, 0xFF, 0x00, 0xF7,
    0x14, 0x14, 0x14, 0x14, 0x14,
    0x14, 0x14, 0xF7, 0x00, 0xF7,
    0x14, 0x14, 0x14, 0x17, 0x14,
    0x10, 0x10, 0x1F, 0x10, 0x1F,
    0x14, 0x14, 0x14, 0xF4, 0x14,
    0x10, 0x10, 0xF0, 0x10, 0xF0,
    0x00, 0x00, 0x1F, 0x10, 0x1F,
    0x00, 0x00, 0x00, 0x1F, 0x14,
    0x00, 0x00, 0x00, 0xFC, 0x14,
    0x00, 0x00, 0xF0, 0x10, 0xF0,
    0x10, 0x10, 0xFF, 0x10, 0xFF,
    0x14, 0x14, 0x14, 0xFF, 0x14,
    0x10, 0x10, 0x10, 0x1F, 0x00,
    0x00, 0x00, 0x00, 0xF0, 0x10,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0xF0, 0xF0, 0xF0, 0xF0, 0xF0,
    0xFF, 0xFF, 0xFF, 0x00, 0x00,
    0x00, 0x00, 0x00, 0xFF, 0xFF,
    0x0F, 0x0F, 0x0F, 0x0F, 0x0F,
    0x38, 0x44, 0x44, 0x38, 0x44,
    0xFC, 0x4A, 0x4A, 0x4A, 0x34, // sharp-s or beta
    0x7E, 0x02, 0x02, 0x06, 0x06,
    0x02, 0x7E, 0x02, 0x7E, 0x02,
    0x63, 0x55, 0x49, 0x41, 0x63,
    0x38, 0x44, 0x44, 0x3C, 0x04,
    0x40, 0x7E, 0x20, 0x1E, 0x20,
    0x06, 0x02, 0x7E, 0x02, 0x02,
    0x99, 0xA5, 0xE7, 0xA5, 0x99,
    0x1C, 0x2A, 0x49, 0x2A, 0x1C,
    0x4C, 0x72, 0x01, 0x72, 0x4C,
    0x30, 0x4A, 0x4D, 0x4D, 0x30,
    0x30, 0x48, 0x78, 0x48, 0x30,
    0xBC, 0x62, 0x5A, 0x46, 0x3D,
    0x3E, 0x49, 0x49, 0x49, 0x00,
    0x7E, 0x01, 0x01, 0x01, 0x7E,
    0x2A, 0x2A, 0x2A, 0x2A, 0x2A,
    0x44, 0x44, 0x5F, 0x44, 0x44,
    0x40, 0x51, 0x4A, 0x44, 0x40,
    0x40, 0x44, 0x4A, 0x51, 0x40,
    0x00, 0x00, 0xFF, 0x01, 0x03,
    0xE0, 0x80, 0xFF, 0x00, 0x00,
    0x08, 0x08, 0x6B, 0x6B, 0x08,
    0x36, 0x12, 0x36, 0x24, 0x36,
    0x06, 0x0F, 0x09, 0x0F, 0x06,
    0x00, 0x00, 0x18, 0x18, 0x00,
    0x00, 0x00, 0x10, 0x10, 0x00,
    0x30, 0x40, 0xFF, 0x01, 0x01,
    0x00, 0x1F, 0x01, 0x01, 0x1E,
    0x00, 0x19, 0x1D, 0x17, 0x12,
    0x00, 0x3C, 0x3C, 0x3C, 0x3C,
    0x00, 0x00, 0x00, 0x00, 0x00  // #255 NBSP
};