FTDI EVE: Cyrillic font, some minor fixes (#20517)

Marlin/Configuration_adv.h

@@ -1563,6 +1563,9 @@
       //#define TOUCH_UI_UTF8_FRACTIONS     // ¼ ½ ¾
       //#define TOUCH_UI_UTF8_SYMBOLS       // µ ¶ ¦ § ¬
     #endif
+
+    // Cyrillic character set, costs about 27KiB of flash
+    //#define TOUCH_UI_UTF8_CYRILLIC_CHARSET
   #endif
 
   // Use a smaller font when labels don't fit buttons

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/basic/commands.cpp

@@ -211,6 +211,14 @@ void CLCD::mem_write_32(uint32_t reg_address, uint32_t data) {
   spi_ftdi_deselect();
 }
 
+// Fill area of len size with repeated data bytes
+void CLCD::mem_write_fill(uint32_t reg_address, uint8_t data, uint16_t len) {
+  spi_ftdi_select();
+  spi_write_addr(reg_address);
+  while (len--) spi_write_8(data);
+  spi_ftdi_deselect();
+}
+
 /******************* FT800/810 Co-processor Commands *********************************/
 
 #if FTDI_API_LEVEL == 800

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/basic/commands.h

@@ -115,6 +115,7 @@ class CLCD {
     static void     mem_write_8    (uint32_t reg_address, uint8_t w_data);
     static void     mem_write_16   (uint32_t reg_address, uint16_t w_data);
     static void     mem_write_32   (uint32_t reg_address, uint32_t w_data);
+    static void     mem_write_fill (uint32_t reg_address, uint8_t w_data, uint16_t len);
     static void     mem_write_bulk (uint32_t reg_address, const void *data, uint16_t len, uint8_t padding = 0);
     static void     mem_write_pgm  (uint32_t reg_address, const void *data, uint16_t len, uint8_t padding = 0);
     static void     mem_write_bulk (uint32_t reg_address, progmem_str str, uint16_t len, uint8_t padding = 0);

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/ftdi_extended.h

@@ -34,6 +34,7 @@
   #include "unicode/unicode.h"
   #include "unicode/standard_char_set.h"
   #include "unicode/western_char_set.h"
+  #include "unicode/cyrillic_char_set.h"
   #include "unicode/font_bitmaps.h"
   #include "rgb_t.h"
   #include "bitmap_info.h"

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/text_ellipsis.cpp

@@ -37,11 +37,22 @@ namespace FTDI {
     // split and still allow the ellipsis to fit.
     int16_t lineWidth = 0;
     char *breakPoint   = str;
-    for (char* c = str; *c; c++) {
-      lineWidth += fm.get_char_width(*c);
-      if (lineWidth + ellipsisWidth < w)
-        breakPoint = c;
-    }
+    #ifdef TOUCH_UI_USE_UTF8
+      char *tstr = str;
+      while (*tstr) {
+        breakPoint = tstr;
+        const utf8_char_t c = get_utf8_char_and_inc(tstr);
+        lineWidth += fm.get_char_width(c);
+        if (lineWidth + ellipsisWidth < w)
+          break;
+      }
+    #else
+      for (char* c = str; *c; c++) {
+        lineWidth += fm.get_char_width(*c);
+        if (lineWidth + ellipsisWidth < w)
+          breakPoint = c;
+      }
+    #endif
 
     if (lineWidth > w) {
       *breakPoint = '\0';

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/cyrillic_char_set.cpp

@@ -0,0 +1,139 @@
+/************************
+ * cyrillic_char_set.cpp *
+ ************************/
+
+/****************************************************************************
+ *   Written By Kirill Shashlov 2020                                        *
+ *              Marcio Teixeira 2019 - Aleph Objects, Inc.                  *
+ *                                                                          *
+ *   This program is free software: you can redistribute it and/or modify   *
+ *   it under the terms of the GNU General Public License as published by   *
+ *   the Free Software Foundation, either version 3 of the License, or      *
+ *   (at your option) any later version.                                    *
+ *                                                                          *
+ *   This program is distributed in the hope that it will be useful,        *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
+ *   GNU General Public License for more details.                           *
+ *                                                                          *
+ *   To view a copy of the GNU General Public License, go to the following  *
+ *   location: <https://www.gnu.org/licenses/>.                             *
+ ****************************************************************************/
+
+#include "../ftdi_extended.h"
+
+#if ALL(FTDI_EXTENDED, TOUCH_UI_USE_UTF8, TOUCH_UI_UTF8_CYRILLIC_CHARSET)
+
+  #include "cyrillic_char_set_bitmap_31.h"
+
+  #define NUM_ELEMENTS(a) (sizeof(a)/sizeof(a[0]))
+
+  #define UTF8(A) uint16_t(utf8(U##A))
+
+  using namespace FTDI;
+
+  constexpr static uint8_t cyrillic_font_handle = 6;
+
+  uint32_t FTDI::CyrillicCharSet::bitmap_addr;
+
+  /**
+   * Load bitmap data into RAMG. This function is called once at the start
+   * of the program.
+   *
+   * Parameters:
+   *
+   *   addr  - Address in RAMG where the font data is written
+   *
+   * Returns: Last wrote address
+   */
+
+  uint32_t FTDI::CyrillicCharSet::load_data(uint32_t addr) {
+    if (addr % 4 != 0)
+      addr += 4 - (addr % 4);
+
+    // Load the alternative font metrics
+    CLCD::FontMetrics cyrillic_fm;
+    cyrillic_fm.ptr    = addr + 148;
+    cyrillic_fm.format = L4;
+    cyrillic_fm.stride = 20;
+    cyrillic_fm.width  = 40;
+    cyrillic_fm.height = 49;
+    LOOP_L_N(i, 127)
+      cyrillic_fm.char_widths[i] = 0;
+
+    // For cyrillic characters, copy the character widths from the widths tables
+    LOOP_L_N(i, NUM_ELEMENTS(cyrillic_font_widths)) {
+      cyrillic_fm.char_widths[i] = cyrillic_font_widths[i];
+    }
+    CLCD::mem_write_bulk(addr, &cyrillic_fm,  148);
+
+    // Decode the RLE data and load it into RAMG as a bitmap
+    uint32_t lastaddr = write_rle_data(addr + 148, cyrillic_font, sizeof(cyrillic_font));
+
+    bitmap_addr = addr;
+
+    return lastaddr;
+  }
+
+  /**
+   * Populates the bitmap handles for the custom into the display list.
+   * This function is called once at the start of each display list.
+   *
+   * Parameters:
+   *
+   *   cmd  - Object used for writing to the FTDI chip command queue.
+   */
+
+  void FTDI::CyrillicCharSet::load_bitmaps(CommandProcessor& cmd) {
+    CLCD::FontMetrics cyrillic_fm;
+    cyrillic_fm.ptr    = bitmap_addr + 148;
+    cyrillic_fm.format = L4;
+    cyrillic_fm.stride = 20;
+    cyrillic_fm.width  = 40;
+    cyrillic_fm.height = 49;
+    set_font_bitmap(cmd, cyrillic_fm, cyrillic_font_handle);
+  }
+
+  /**
+   * Renders a character at location x and y. The x position is incremented
+   * by the width of the character.
+   *
+   * Parameters:
+   *
+   *   cmd  - If non-NULL the symbol is drawn to the screen.
+   *          If NULL, only increment position for text measurement.
+   *
+   *   x, y - The location at which to draw the character. On output,
+   *          incremented to the location of the next character.
+   *
+   *   fs   - A scaling object used to scale the font. The display will
+   *          already be configured to scale bitmaps, but positions
+   *          must be scaled using fs.scale()
+   *
+   *   c    - The unicode code point to draw. If the renderer does not
+   *          support the character, it should return false.
+   *
+   * Returns: Whether the character was supported.
+   */
+
+  bool FTDI::CyrillicCharSet::render_glyph(CommandProcessor* cmd, int &x, int &y, font_size_t fs, utf8_char_t c) {
+    // A supported character?
+    if ((c < UTF8('А') || c > UTF8('я')) && (c != UTF8('Ё')) && (c != UTF8('ё'))) return false;
+
+    uint8_t idx = (c == UTF8('Ё')) ? 64 :
+                  (c == UTF8('ё')) ? 65 :
+                  (c < UTF8('р'))  ? c - UTF8('А') :
+                                     c - UTF8('р') + 48
+                  ;
+
+    uint8_t width = cyrillic_font_widths[idx];
+
+    // Draw the character
+    if (cmd) ext_vertex2ii(*cmd, x, y, cyrillic_font_handle, idx);
+
+    // Increment X to the next character position
+    x += fs.scale(width);
+    return true;
+  }
+
+#endif // FTDI_EXTENDED && TOUCH_UI_USE_UTF8 && TOUCH_UI_UTF8_WESTERN_CHARSET

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/cyrillic_char_set.h

@@ -0,0 +1,32 @@
+/**********************
+ * cyrillic_char_set.h *
+ **********************/
+
+/****************************************************************************
+ *   Written By Kirill Shashlov 2020                                        *
+ *              Marcio Teixeira 2019 - Aleph Objects, Inc.                  *
+ *                                                                          *
+ *   This program is free software: you can redistribute it and/or modify   *
+ *   it under the terms of the GNU General Public License as published by   *
+ *   the Free Software Foundation, either version 3 of the License, or      *
+ *   (at your option) any later version.                                    *
+ *                                                                          *
+ *   This program is distributed in the hope that it will be useful,        *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
+ *   GNU General Public License for more details.                           *
+ *                                                                          *
+ *   To view a copy of the GNU General Public License, go to the following  *
+ *   location: <https://www.gnu.org/licenses/>.                             *
+ ****************************************************************************/
+
+namespace FTDI {
+  class CyrillicCharSet {
+    private:
+      static uint32_t bitmap_addr;
+    public:
+      static uint32_t load_data(uint32_t addr);
+      static void load_bitmaps(CommandProcessor&);
+      static bool render_glyph(CommandProcessor*, int &x, int &y, font_size_t, utf8_char_t);
+  };
+}

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/font_bitmaps.cpp

@@ -25,12 +25,14 @@
 
 namespace FTDI {
 
-  void write_rle_data(uint16_t addr, const uint8_t *data, size_t n) {
+  uint32_t write_rle_data(uint32_t addr, const uint8_t *data, size_t n) {
     for (; n >= 2; n -= 2) {
       uint8_t count = pgm_read_byte(data++);
       uint8_t value = pgm_read_byte(data++);
-      while (count--) CLCD::mem_write_8(addr++, value);
+      CLCD::mem_write_fill(addr, value, count);
+      addr += count;
     }
+    return addr;
   }
 
   void set_font_bitmap(CommandProcessor& cmd, CLCD::FontMetrics &fm, uint8_t handle) {

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/font_bitmaps.h

@@ -24,7 +24,7 @@
 class CommandProcessor;
 
 namespace FTDI {
-  void write_rle_data(uint16_t addr, const uint8_t *data, size_t n);
+  uint32_t write_rle_data(uint32_t addr, const uint8_t *data, size_t n);
   void set_font_bitmap(CommandProcessor& cmd, CLCD::FontMetrics &fm, uint8_t handle);
   void ext_vertex2ii(CommandProcessor &cmd, int x, int y, uint8_t handle, uint8_t cell);
 }

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/standard_char_set.cpp

@@ -48,7 +48,8 @@
    *   addr  - Address in RAMG where the font data is written
    */
 
-  void FTDI::StandardCharSet::load_data(uint32_t) {
+  uint32_t FTDI::StandardCharSet::load_data(uint32_t addr) {
+    return addr;
   }
 
   /**

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/standard_char_set.h

@@ -23,7 +23,7 @@ namespace FTDI {
   class StandardCharSet {
     public:
       static uint8_t std_char_width(char);
-      static void load_data(uint32_t addr);
+      static uint32_t load_data(uint32_t addr);
       static void load_bitmaps(CommandProcessor&);
       static bool render_glyph(CommandProcessor*, int &x, int &y, font_size_t, utf8_char_t);
   };

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/unicode.cpp

@@ -73,6 +73,13 @@
     return val;
   }
 
+  utf8_char_t FTDI::get_utf8_char_and_inc(char *&c) {
+    utf8_char_t val = *(uint8_t*)c++;
+    while ((*c & 0xC0) == 0x80)
+      val = (val << 8) | *(uint8_t*)c++;
+    return val;
+  }
+
   /**
    * Helper function to draw and/or measure a UTF8 string
    *
@@ -92,6 +99,9 @@
     const int start_x = x;
     while (*str) {
       const utf8_char_t c = get_utf8_char_and_inc(str);
+      #ifdef TOUCH_UI_UTF8_CYRILLIC_CHARSET
+        CyrillicCharSet::render_glyph(cmd, x, y, fs, c) ||
+      #endif
       #ifdef TOUCH_UI_UTF8_WESTERN_CHARSET
         WesternCharSet::render_glyph(cmd, x, y, fs, c) ||
       #endif
@@ -108,11 +118,14 @@
    *   addr  - Address in RAMG where the font data is written
    */
 
-  void FTDI::load_utf8_data(uint16_t addr) {
+  void FTDI::load_utf8_data(uint32_t addr) {
+    #ifdef TOUCH_UI_UTF8_CYRILLIC_CHARSET
+      addr = CyrillicCharSet::load_data(addr);
+    #endif
     #ifdef TOUCH_UI_UTF8_WESTERN_CHARSET
-      WesternCharSet::load_data(addr);
+      addr = WesternCharSet::load_data(addr);
     #endif
-    StandardCharSet::load_data(addr);
+    addr = StandardCharSet::load_data(addr);
   }
 
   /**
@@ -125,6 +138,9 @@
    */
 
   void FTDI::load_utf8_bitmaps(CommandProcessor &cmd) {
+    #ifdef TOUCH_UI_UTF8_CYRILLIC_CHARSET
+      CyrillicCharSet::load_bitmaps(cmd);
+    #endif
     #ifdef TOUCH_UI_UTF8_WESTERN_CHARSET
       WesternCharSet::load_bitmaps(cmd);
     #endif
@@ -145,6 +161,9 @@
 
   uint16_t FTDI::get_utf8_char_width(utf8_char_t c, font_size_t fs) {
     int x = 0, y = 0;
+    #ifdef TOUCH_UI_UTF8_CYRILLIC_CHARSET
+      CyrillicCharSet::render_glyph(nullptr, x, y, fs, c) ||
+    #endif
     #ifdef TOUCH_UI_UTF8_WESTERN_CHARSET
       WesternCharSet::render_glyph(nullptr, x, y, fs, c) ||
     #endif

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/unicode.h

@@ -47,19 +47,20 @@ namespace FTDI {
      * pointer to the next character */
 
     utf8_char_t get_utf8_char_and_inc(const char *&c);
+    utf8_char_t get_utf8_char_and_inc(char *&c);
 
     /* Returns the next character in a UTF8 string, without incrementing */
 
     inline utf8_char_t get_utf8_char(const char *c) {return get_utf8_char_and_inc(c);}
 
-    void load_utf8_data(uint16_t addr);
+    void load_utf8_data(uint32_t addr);
   #else
     typedef char utf8_char_t;
 
     inline utf8_char_t get_utf8_char_and_inc(const char *&c) {return *c++;}
     inline utf8_char_t get_utf8_char(const char *c) {return *c;}
 
-    inline void load_utf8_data(uint16_t) {}
+    inline void load_utf8_data(uint32_t) {}
   #endif
 
   void load_utf8_bitmaps(CommandProcessor& cmd);

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/western_char_set.cpp

@@ -32,7 +32,7 @@
   constexpr static uint8_t std_font = 31;
   constexpr static uint8_t alt_font = 1;
 
-  static uint32_t bitmap_addr;
+  uint32_t FTDI::WesternCharSet::bitmap_addr;
 
   /* Glyphs in the WesternCharSet bitmap */
 
@@ -286,7 +286,7 @@
     #if ENABLED(TOUCH_UI_UTF8_SCANDINAVIAN)
       {UTF8('þ'),  0 , SML_THORN,          25   },
     #endif
-    {UTF8('ÿ'), 'y', DIAERESIS,          mid_y}
+    {UTF8('ÿ'), 'y', DIAERESIS,          mid_y},
   };
 
   static_assert(UTF8('¡') == 0xC2A1, "Incorrect encoding for character");
@@ -331,7 +331,10 @@
    *   addr  - Address in RAMG where the font data is written
    */
 
-  void FTDI::WesternCharSet::load_data(uint32_t addr) {
+  uint32_t FTDI::WesternCharSet::load_data(uint32_t addr) {
+    if (addr % 4 != 0)
+      addr += 4 - (addr % 4);
+
     // Load the alternative font metrics
     CLCD::FontMetrics alt_fm;
     alt_fm.ptr    = addr + 148;
@@ -352,9 +355,11 @@
     CLCD::mem_write_bulk(addr, &alt_fm,  148);
 
     // Decode the RLE data and load it into RAMG as a bitmap
-    write_rle_data(addr + 148, font, sizeof(font));
+    uint32_t lastaddr = write_rle_data(addr + 148, font, sizeof(font));
 
     bitmap_addr = addr;
+
+    return lastaddr;
   }
 
   /**
@@ -394,7 +399,7 @@
    *
    *   c    - The unicode code point to draw. If the renderer does not
    *          support the character, it should return false.
-
+   *
    * Returns: Whether the character was supported.
    */
 

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extended/unicode/western_char_set.h

@@ -21,8 +21,10 @@
 
 namespace FTDI {
   class WesternCharSet {
+    private:
+      static uint32_t bitmap_addr;
     public:
-      static void load_data(uint32_t addr);
+      static uint32_t load_data(uint32_t addr);
       static void load_bitmaps(CommandProcessor&);
       static bool render_glyph(CommandProcessor*, int &x, int &y, font_size_t, utf8_char_t);
   };

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/ftdi_eve_lib/extras/bitmap2cpp.py

@@ -49,19 +49,19 @@ class WriteSource:
 
   def convert_to_4bpp(self, data, chunk_size = 0):
     # Invert the image
-    data = map(lambda i: 255 - i, data)
+    data = list(map(lambda i: 255 - i, data))
     # Quanitize 8-bit values into 4-bits
-    data = map(lambda i: i >> 4, data)
+    data = list(map(lambda i: i >> 4, data))
     # Make sure there is an even number of elements
     if (len(data) & 1) == 1:
-      result.append(0)
+      data.append(0)
     # Combine each two adjacent values into one
     i = iter(data)
-    data = map(lambda a, b: a << 4 | b, i ,i)
+    data = list(map(lambda a, b: a << 4 | b, i ,i))
     # Pack the data
     data = pack_rle(data)
     # Convert values into hex strings
-    return map(lambda a: "0x" + format(a, '02x'), data)
+    return list(map(lambda a: "0x" + format(a, '02x'), data))
 
   def end_row(self, y):
     # Pad each row into even number of values

Marlin/src/lcd/extui/ui_api.cpp

@@ -1016,7 +1016,7 @@ namespace ExtUI {
   }
 
   const char* FileList::filename() {
-    return IFSD(card.longFilename[0] ? card.longFilename : card.filename, "");
+    return IFSD(card.longest_filename(), "");
   }
 
   const char* FileList::shortFilename() {

Marlin/src/sd/SdBaseFile.cpp

@@ -1077,7 +1077,7 @@ int8_t SdBaseFile::readDir(dir_t* dir, char* longFilename) {
 
   // If we have a longFilename buffer, mark it as invalid.
   // If a long filename is found it will be filled automatically.
-  if (longFilename) longFilename[0] = '\0';
+  if (longFilename) { longFilename[0] = '\0'; longFilename[1] = '\0'; }
 
   while (1) {
 
@@ -1089,7 +1089,7 @@ int8_t SdBaseFile::readDir(dir_t* dir, char* longFilename) {
 
     // skip deleted entry and entry for .  and ..
     if (dir->name[0] == DIR_NAME_DELETED || dir->name[0] == '.') {
-      if (longFilename) longFilename[0] = '\0';     // Invalidate erased file long name, if any
+      if (longFilename) { longFilename[0] = '\0'; longFilename[1] = '\0'; } // Invalidate erased file long name, if any
       continue;
     }