refactor(core): change fonts organization

core/SConscript.boardloader

@@ -50,7 +50,8 @@ CPPPATH_MOD += [
 ]
 SOURCE_MOD += [
     'embed/extmod/modtrezorui/display.c',
-    'embed/extmod/modtrezorui/font_bitmap.c',
+    'embed/extmod/modtrezorui/fonts/fonts.c',
+    'embed/extmod/modtrezorui/fonts/font_bitmap.c',
 ]
 
 SOURCE_STMHAL = [

core/SConscript.bootloader

@@ -1,6 +1,7 @@
 # pylint: disable=E0602
 
 import os
+import tools
 
 TREZOR_MODEL = ARGUMENTS.get('TREZOR_MODEL', 'T')
 
@@ -21,6 +22,17 @@ CPPPATH_MOD = []
 CPPDEFINES_MOD = []
 SOURCE_MOD = []
 
+if TREZOR_MODEL in ('1', 'R'):
+    FONT_NORMAL='Font_PixelOperator_Regular_8'
+    FONT_MEDIUM=None
+    FONT_BOLD=None
+    FONT_MONO='Font_PixelOperatorMono_Regular_8'
+if TREZOR_MODEL in ('T', ):
+    FONT_NORMAL='Font_Roboto_Regular_20'
+    FONT_MEDIUM=None
+    FONT_BOLD=None
+    FONT_MONO='Font_RobotoMono_Regular_20'
+
 # modtrezorcrypto
 CCFLAGS_MOD += '-Wno-sequence-point '
 CPPPATH_MOD += [
@@ -51,18 +63,11 @@ SOURCE_MOD += [
 CPPPATH_MOD += [
         'vendor/micropython/lib/uzlib',
 ]
-CPPDEFINES_MOD += [
-    'TREZOR_FONT_NORMAL_ENABLE',
-    'TREZOR_FONT_MONO_ENABLE',
-]
+
 SOURCE_MOD += [
     'embed/extmod/modtrezorui/display.c',
-    'embed/extmod/modtrezorui/font_bitmap.c',
-    'embed/extmod/modtrezorui/font_roboto_regular_20.c',
-    'embed/extmod/modtrezorui/font_robotomono_regular_20.c',
-    'embed/extmod/modtrezorui/font_pixeloperator_bold_8.c',
-    'embed/extmod/modtrezorui/font_pixeloperator_regular_8.c',
-    'embed/extmod/modtrezorui/font_pixeloperatormono_regular_8.c',
+    'embed/extmod/modtrezorui/fonts/fonts.c',
+    'embed/extmod/modtrezorui/fonts/font_bitmap.c',
     'vendor/micropython/lib/uzlib/adler32.c',
     'vendor/micropython/lib/uzlib/crc32.c',
     'vendor/micropython/lib/uzlib/tinflate.c',
@@ -131,6 +136,13 @@ if TREZOR_MODEL in ('T',):
     SOURCE_TREZORHAL.append('embed/trezorhal/touch.c')
 
 
+# fonts
+tools.add_font('NORMAL', FONT_NORMAL, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('BOLD', FONT_BOLD, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MEDIUM', FONT_MEDIUM, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MONO', FONT_MONO, CPPDEFINES_MOD, SOURCE_MOD)
+
+
 env = Environment(ENV=os.environ, CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')))
 
 env.Replace(

core/SConscript.bootloader_ci

@@ -1,6 +1,7 @@
 # pylint: disable=E0602
 
 import os
+import tools
 
 TREZOR_MODEL = ARGUMENTS.get('TREZOR_MODEL', 'T')
 
@@ -21,6 +22,17 @@ CPPPATH_MOD = []
 CPPDEFINES_MOD = []
 SOURCE_MOD = []
 
+if TREZOR_MODEL in ('1', 'R'):
+    FONT_NORMAL='Font_PixelOperator_Regular_8'
+    FONT_MEDIUM=None
+    FONT_BOLD=None
+    FONT_MONO='Font_PixelOperatorMono_Regular_8'
+if TREZOR_MODEL in ('T', ):
+    FONT_NORMAL='Font_Roboto_Regular_20'
+    FONT_MEDIUM=None
+    FONT_BOLD=None
+    FONT_MONO='Font_RobotoMono_Regular_20'
+
 # modtrezorcrypto
 CCFLAGS_MOD += '-Wno-sequence-point '
 CPPPATH_MOD += [
@@ -51,15 +63,10 @@ SOURCE_MOD += [
 CPPPATH_MOD += [
         'vendor/micropython/lib/uzlib',
 ]
-CPPDEFINES_MOD += [
-    'TREZOR_FONT_NORMAL_ENABLE',
-    'TREZOR_FONT_MONO_ENABLE',
-]
 SOURCE_MOD += [
     'embed/extmod/modtrezorui/display.c',
-    'embed/extmod/modtrezorui/font_bitmap.c',
-    'embed/extmod/modtrezorui/font_roboto_regular_20.c',
-    'embed/extmod/modtrezorui/font_robotomono_regular_20.c',
+    'embed/extmod/modtrezorui/fonts/fonts.c',
+    'embed/extmod/modtrezorui/fonts/font_bitmap.c',
     'vendor/micropython/lib/uzlib/adler32.c',
     'vendor/micropython/lib/uzlib/crc32.c',
     'vendor/micropython/lib/uzlib/tinflate.c',
@@ -121,6 +128,12 @@ SOURCE_TREZORHAL = [
     'embed/trezorhal/vectortable.s',
 ]
 
+# fonts
+tools.add_font('NORMAL', FONT_NORMAL, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('BOLD', FONT_BOLD, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MEDIUM', FONT_MEDIUM, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MONO', FONT_MONO, CPPDEFINES_MOD, SOURCE_MOD)
+
 env = Environment(ENV=os.environ, CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')))
 
 env.Replace(

core/SConscript.firmware

@@ -2,6 +2,7 @@
 # fmt: off
 
 import os
+import tools
 
 BITCOIN_ONLY = ARGUMENTS.get('BITCOIN_ONLY', '0')
 EVERYTHING = BITCOIN_ONLY != '1'
@@ -22,6 +23,23 @@ SOURCE_MOD = []
 PYOPT = ARGUMENTS.get('PYOPT', '1')
 FROZEN = True
 
+if TREZOR_MODEL in ('1', 'R'):
+    FONT_NORMAL='Font_PixelOperator_Regular_8'
+    FONT_MEDIUM='Font_PixelOperator_Regular_8'
+    FONT_BOLD='Font_PixelOperator_Bold_8'
+    FONT_MONO='Font_PixelOperatorMono_Regular_8'
+if TREZOR_MODEL in ('T', ):
+    if UI2:
+        FONT_NORMAL='Font_TTHoves_Regular_18'
+        FONT_MEDIUM='Font_TTHoves_Medium_20'
+        FONT_BOLD='Font_TTHoves_Bold_16'
+        FONT_MONO='Font_RobotoMono_Regular_20'
+    else:
+        FONT_NORMAL='Font_Roboto_Regular_20'
+        FONT_MEDIUM=None
+        FONT_BOLD='Font_Roboto_Bold_20'
+        FONT_MONO='Font_RobotoMono_Regular_20'
+
 # modtrezorconfig
 CPPPATH_MOD += [
     'embed/extmod/modtrezorconfig',
@@ -158,20 +176,10 @@ if TREZOR_MODEL in ('T',):
 CPPPATH_MOD += [
         'vendor/micropython/lib/uzlib',
 ]
-CPPDEFINES_MOD += [
-    'TREZOR_FONT_BOLD_ENABLE',
-    'TREZOR_FONT_NORMAL_ENABLE',
-    'TREZOR_FONT_MONO_ENABLE',
-]
 SOURCE_MOD += [
     'embed/extmod/modtrezorui/display.c',
-    'embed/extmod/modtrezorui/font_bitmap.c',
-    'embed/extmod/modtrezorui/font_roboto_bold_20.c',
-    'embed/extmod/modtrezorui/font_roboto_regular_20.c',
-    'embed/extmod/modtrezorui/font_robotomono_regular_20.c',
-    'embed/extmod/modtrezorui/font_pixeloperator_bold_8.c',
-    'embed/extmod/modtrezorui/font_pixeloperator_regular_8.c',
-    'embed/extmod/modtrezorui/font_pixeloperatormono_regular_8.c',
+    'embed/extmod/modtrezorui/fonts/fonts.c',
+    'embed/extmod/modtrezorui/fonts/font_bitmap.c',
     'embed/extmod/modtrezorui/modtrezorui.c',
     'embed/extmod/modtrezorui/qr-code-generator/qrcodegen.c',
     'vendor/micropython/lib/uzlib/adler32.c',
@@ -180,14 +188,8 @@ SOURCE_MOD += [
 ]
 if UI2:
     CPPDEFINES_MOD += [
-        'TREZOR_FONT_MEDIUM_ENABLE',
         'TREZOR_UI2',
     ]
-    SOURCE_MOD += [
-        'embed/extmod/modtrezorui/font_tthoves_bold_16.c',
-        'embed/extmod/modtrezorui/font_tthoves_medium_20.c',
-        'embed/extmod/modtrezorui/font_tthoves_regular_18.c',
-    ]
 
 # modtrezorutils
 SOURCE_MOD += [
@@ -415,6 +417,12 @@ if FEATURE_FLAGS["SYSTEM_VIEW"]:
     CPPDEFINES_MOD += ['SYSTEM_VIEW']
     CCFLAGS_MOD += '-DSYSTEM_VIEW '
 
+# fonts
+tools.add_font('NORMAL', FONT_NORMAL, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('BOLD', FONT_BOLD, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MEDIUM', FONT_MEDIUM, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MONO', FONT_MONO, CPPDEFINES_MOD, SOURCE_MOD)
+
 SOURCE_QSTR = SOURCE_MOD + SOURCE_MICROPYTHON + SOURCE_MICROPYTHON_SPEED
 
 env = Environment(ENV=os.environ, CFLAGS='%s -DPRODUCTION=%s -DPYOPT=%s -DBITCOIN_ONLY=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0'), PYOPT, BITCOIN_ONLY))

core/SConscript.prodtest

@@ -1,6 +1,7 @@
 # pylint: disable=E0602
 
 import os
+import tools
 
 TREZOR_MODEL = ARGUMENTS.get('TREZOR_MODEL', 'T')
 
@@ -9,6 +10,17 @@ CPPPATH_MOD = []
 CPPDEFINES_MOD = []
 SOURCE_MOD = []
 
+if TREZOR_MODEL in ('1', 'R'):
+    FONT_NORMAL=None
+    FONT_MEDIUM=None
+    FONT_BOLD='Font_PixelOperator_Bold_8'
+    FONT_MONO=None
+if TREZOR_MODEL in ('T', ):
+    FONT_NORMAL=None
+    FONT_MEDIUM=None
+    FONT_BOLD='Font_Roboto_Bold_20'
+    FONT_MONO=None
+
 # modtrezorcrypto
 CPPPATH_MOD += [
     'vendor/trezor-crypto',
@@ -25,14 +37,11 @@ SOURCE_MOD += [
 CPPPATH_MOD += [
         'vendor/micropython/lib/uzlib',
 ]
-CPPDEFINES_MOD += [
-    'TREZOR_FONT_BOLD_ENABLE',
-]
+
 SOURCE_MOD += [
     'embed/extmod/modtrezorui/display.c',
-    'embed/extmod/modtrezorui/font_bitmap.c',
-    'embed/extmod/modtrezorui/font_roboto_bold_20.c',
-    'embed/extmod/modtrezorui/font_pixeloperator_bold_8.c',
+    'embed/extmod/modtrezorui/fonts/fonts.c',
+    'embed/extmod/modtrezorui/fonts/font_bitmap.c',
     'embed/extmod/modtrezorui/qr-code-generator/qrcodegen.c',
     'vendor/micropython/lib/uzlib/adler32.c',
     'vendor/micropython/lib/uzlib/crc32.c',
@@ -88,6 +97,12 @@ SOURCE_TREZORHAL = [
     'embed/trezorhal/vectortable.s',
 ]
 
+# fonts
+tools.add_font('NORMAL', FONT_NORMAL, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('BOLD', FONT_BOLD, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MEDIUM', FONT_MEDIUM, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MONO', FONT_MONO, CPPDEFINES_MOD, SOURCE_MOD)
+
 env = Environment(ENV=os.environ, CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')))
 
 env.Replace(

core/SConscript.reflash

@@ -1,6 +1,7 @@
 # pylint: disable=E0602
 
 import os
+import tools
 
 TREZOR_MODEL = ARGUMENTS.get('TREZOR_MODEL', 'T')
 
@@ -9,6 +10,17 @@ CPPPATH_MOD = []
 CPPDEFINES_MOD = []
 SOURCE_MOD = []
 
+if TREZOR_MODEL in ('1', 'R'):
+    FONT_NORMAL=None
+    FONT_MEDIUM=None
+    FONT_BOLD='Font_PixelOperator_Bold_8'
+    FONT_MONO=None
+if TREZOR_MODEL in ('T', ):
+    FONT_NORMAL=None
+    FONT_MEDIUM=None
+    FONT_BOLD='Font_Roboto_Bold_20'
+    FONT_MONO=None
+
 # modtrezorcrypto
 CPPPATH_MOD += [
     'vendor/trezor-crypto',
@@ -21,13 +33,10 @@ SOURCE_MOD += [
 CPPPATH_MOD += [
         'vendor/micropython/lib/uzlib',
 ]
-CPPDEFINES_MOD += [
-    'TREZOR_FONT_BOLD_ENABLE',
-]
 SOURCE_MOD += [
     'embed/extmod/modtrezorui/display.c',
+    'embed/extmod/modtrezorui/fonts/fonts.c',
     'embed/extmod/modtrezorui/font_bitmap.c',
-    'embed/extmod/modtrezorui/font_roboto_bold_20.c',
     'vendor/micropython/lib/uzlib/adler32.c',
     'vendor/micropython/lib/uzlib/crc32.c',
     'vendor/micropython/lib/uzlib/tinflate.c',
@@ -81,6 +90,12 @@ SOURCE_TREZORHAL = [
     'embed/trezorhal/vectortable.s',
 ]
 
+# fonts
+tools.add_font('NORMAL', FONT_NORMAL, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('BOLD', FONT_BOLD, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MEDIUM', FONT_MEDIUM, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MONO', FONT_MONO, CPPDEFINES_MOD, SOURCE_MOD)
+
 env = Environment(ENV=os.environ, CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')))
 
 env.Replace(

core/SConscript.unix

@@ -2,6 +2,7 @@
 # fmt: off
 
 import os
+import tools
 
 BITCOIN_ONLY = ARGUMENTS.get('BITCOIN_ONLY', '0')
 EVERYTHING = BITCOIN_ONLY != '1'
@@ -23,6 +24,23 @@ PYOPT = ARGUMENTS.get('PYOPT', '1')
 FROZEN = ARGUMENTS.get('TREZOR_EMULATOR_FROZEN', 0)
 RASPI = os.getenv('TREZOR_EMULATOR_RASPI') == '1'
 
+if TREZOR_MODEL in ('1', 'R'):
+    FONT_NORMAL='Font_PixelOperator_Regular_8'
+    FONT_MEDIUM='Font_PixelOperator_Regular_8'
+    FONT_BOLD='Font_PixelOperator_Bold_8'
+    FONT_MONO='Font_PixelOperatorMono_Regular_8'
+if TREZOR_MODEL in ('T', ):
+    if UI2:
+        FONT_NORMAL='Font_TTHoves_Regular_18'
+        FONT_MEDIUM='Font_TTHoves_Medium_20'
+        FONT_BOLD='Font_TTHoves_Bold_16'
+        FONT_MONO='Font_RobotoMono_Regular_20'
+    else:
+        FONT_NORMAL='Font_Roboto_Regular_20'
+        FONT_MEDIUM=None
+        FONT_BOLD='Font_Roboto_Bold_20'
+        FONT_MONO='Font_RobotoMono_Regular_20'
+
 # modtrezorconfig
 CPPPATH_MOD += [
     'embed/extmod/modtrezorconfig',
@@ -154,20 +172,10 @@ if TREZOR_MODEL in ('T',):
 CPPPATH_MOD += [
         'vendor/micropython/lib/uzlib',
 ]
-CPPDEFINES_MOD += [
-    'TREZOR_FONT_BOLD_ENABLE',
-    'TREZOR_FONT_NORMAL_ENABLE',
-    'TREZOR_FONT_MONO_ENABLE',
-]
 SOURCE_MOD += [
     'embed/extmod/modtrezorui/display.c',
-    'embed/extmod/modtrezorui/font_bitmap.c',
-    'embed/extmod/modtrezorui/font_roboto_bold_20.c',
-    'embed/extmod/modtrezorui/font_roboto_regular_20.c',
-    'embed/extmod/modtrezorui/font_robotomono_regular_20.c',
-    'embed/extmod/modtrezorui/font_pixeloperator_bold_8.c',
-    'embed/extmod/modtrezorui/font_pixeloperator_regular_8.c',
-    'embed/extmod/modtrezorui/font_pixeloperatormono_regular_8.c',
+    'embed/extmod/modtrezorui/fonts/fonts.c',
+    'embed/extmod/modtrezorui/fonts/font_bitmap.c',
     'embed/extmod/modtrezorui/modtrezorui.c',
     'embed/extmod/modtrezorui/qr-code-generator/qrcodegen.c',
     'vendor/micropython/lib/uzlib/adler32.c',
@@ -176,14 +184,8 @@ SOURCE_MOD += [
 ]
 if UI2:
     CPPDEFINES_MOD += [
-        'TREZOR_FONT_MEDIUM_ENABLE',
         'TREZOR_UI2',
     ]
-    SOURCE_MOD += [
-        'embed/extmod/modtrezorui/font_tthoves_bold_16.c',
-        'embed/extmod/modtrezorui/font_tthoves_medium_20.c',
-        'embed/extmod/modtrezorui/font_tthoves_regular_18.c',
-    ]
 if FROZEN:
     CPPDEFINES_MOD += ['TREZOR_EMULATOR_FROZEN']
 if RASPI:
@@ -356,6 +358,13 @@ if TREZOR_MODEL in ('T',):
         'embed/unix/sdcard.c',
     ]
 
+# fonts
+tools.add_font('NORMAL', FONT_NORMAL, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('BOLD', FONT_BOLD, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MEDIUM', FONT_MEDIUM, CPPDEFINES_MOD, SOURCE_MOD)
+tools.add_font('MONO', FONT_MONO, CPPDEFINES_MOD, SOURCE_MOD)
+
+
 SOURCE_QSTR = SOURCE_MOD + SOURCE_MICROPYTHON + SOURCE_UNIX
 
 if PYOPT == '0' or not FROZEN:

core/embed/extmod/modtrezorui/display.c

@@ -26,81 +26,7 @@
 #include "common.h"
 #include "display.h"
 
-#include "font_bitmap.h"
-
-#if defined TREZOR_MODEL_T
-
-// TT new rust UI
-#if TREZOR_UI2
-
-#ifdef TREZOR_FONT_NORMAL_ENABLE
-#include "font_tthoves_regular_18.h"
-#define FONT_NORMAL_DATA Font_TTHoves_Regular_18
-#define FONT_NORMAL_HEIGHT 18
-#endif
-#ifdef TREZOR_FONT_MEDIUM_ENABLE
-#include "font_tthoves_medium_20.h"
-#define FONT_MEDIUM_DATA Font_TTHoves_Medium_20
-#define FONT_MEDIUM_HEIGHT 20
-#endif
-#ifdef TREZOR_FONT_BOLD_ENABLE
-#include "font_tthoves_bold_16.h"
-#define FONT_BOLD_DATA Font_TTHoves_Bold_16
-#define FONT_BOLD_HEIGHT 16
-#endif
-#ifdef TREZOR_FONT_MONO_ENABLE
-#include "font_robotomono_regular_20.h"
-#define FONT_MONO_DATA Font_RobotoMono_Regular_20
-#define FONT_MONO_HEIGHT 20
-#endif
-
-// TT old python UI
-#else
-
-#ifdef TREZOR_FONT_NORMAL_ENABLE
-#include "font_roboto_regular_20.h"
-#define FONT_NORMAL_DATA Font_Roboto_Regular_20
-#define FONT_NORMAL_HEIGHT 20
-#endif
-#ifdef TREZOR_FONT_BOLD_ENABLE
-#include "font_roboto_bold_20.h"
-#define FONT_BOLD_DATA Font_Roboto_Bold_20
-#define FONT_BOLD_HEIGHT 20
-#endif
-#ifdef TREZOR_FONT_MONO_ENABLE
-#include "font_robotomono_regular_20.h"
-#define FONT_MONO_DATA Font_RobotoMono_Regular_20
-#define FONT_MONO_HEIGHT 20
-#endif
-
-#endif
-
-#elif defined TREZOR_MODEL_1 || defined TREZOR_MODEL_R
-
-#ifdef TREZOR_FONT_NORMAL_ENABLE
-#include "font_pixeloperator_regular_8.h"
-#define FONT_NORMAL_DATA Font_PixelOperator_Regular_8
-#define FONT_NORMAL_HEIGHT 8
-#endif
-#ifdef TREZOR_FONT_MEDIUM_ENABLE
-#include "font_pixeloperator_regular_8.h"
-#define FONT_MEDIUM_DATA Font_PixelOperator_Regular_8
-#define FONT_MEDIUM_HEIGHT 8
-#endif
-#ifdef TREZOR_FONT_BOLD_ENABLE
-#include "font_pixeloperator_bold_8.h"
-#define FONT_BOLD_DATA Font_PixelOperator_Bold_8
-#define FONT_BOLD_HEIGHT 8
-#endif
-#ifdef TREZOR_FONT_MONO_ENABLE
-#include "font_pixeloperatormono_regular_8.h"
-#define FONT_MONO_DATA Font_PixelOperatorMono_Regular_8
-#define FONT_MONO_HEIGHT 8
-#endif
-
-#else
-#error Unknown Trezor model
-#endif
+#include "fonts/fonts.h"
 
 #include <stdarg.h>
 #include <string.h>
@@ -634,91 +560,6 @@ void display_printf(const char *fmt, ...) {
 
 #endif  // TREZOR_PRINT_DISABLE
 
-static uint8_t convert_char(const uint8_t c) {
-  static char last_was_utf8 = 0;
-
-  // non-printable ASCII character
-  if (c < ' ') {
-    last_was_utf8 = 0;
-    return 0x7F;
-  }
-
-  // regular ASCII character
-  if (c < 0x80) {
-    last_was_utf8 = 0;
-    return c;
-  }
-
-  // UTF-8 handling: https://en.wikipedia.org/wiki/UTF-8#Encoding
-
-  // bytes 11xxxxxx are first bytes of UTF-8 characters
-  if (c >= 0xC0) {
-    last_was_utf8 = 1;
-    return 0x7F;
-  }
-
-  if (last_was_utf8) {
-    // bytes 10xxxxxx can be successive UTF-8 characters ...
-    return 0;  // skip glyph
-  } else {
-    // ... or they are just non-printable ASCII characters
-    return 0x7F;
-  }
-
-  return 0;
-}
-
-const uint8_t *display_get_glyph(int font, uint8_t c) {
-  c = convert_char(c);
-  if (!c) return 0;
-
-  // printable ASCII character
-  if (c >= ' ' && c < 0x7F) {
-    switch (font) {
-#ifdef TREZOR_FONT_NORMAL_ENABLE
-      case FONT_NORMAL:
-        return FONT_NORMAL_DATA[c - ' '];
-#endif
-#ifdef TREZOR_FONT_MEDIUM_ENABLE
-      case FONT_MEDIUM:
-        return FONT_MEDIUM_DATA[c - ' '];
-#endif
-#ifdef TREZOR_FONT_BOLD_ENABLE
-      case FONT_BOLD:
-        return FONT_BOLD_DATA[c - ' '];
-#endif
-#ifdef TREZOR_FONT_MONO_ENABLE
-      case FONT_MONO:
-        return FONT_MONO_DATA[c - ' '];
-#endif
-    }
-    return 0;
-  }
-
-// non-printable character
-#define PASTER(s) s##_glyph_nonprintable
-#define NONPRINTABLE_GLYPH(s) PASTER(s)
-
-  switch (font) {
-#ifdef TREZOR_FONT_NORMAL_ENABLE
-    case FONT_NORMAL:
-      return NONPRINTABLE_GLYPH(FONT_NORMAL_DATA);
-#endif
-#ifdef TREZOR_FONT_MEDIUM_ENABLE
-    case FONT_MEDIUM:
-      return NONPRINTABLE_GLYPH(FONT_MEDIUM_DATA);
-#endif
-#ifdef TREZOR_FONT_BOLD_ENABLE
-    case FONT_BOLD:
-      return NONPRINTABLE_GLYPH(FONT_BOLD_DATA);
-#endif
-#ifdef TREZOR_FONT_MONO_ENABLE
-    case FONT_MONO:
-      return NONPRINTABLE_GLYPH(FONT_MONO_DATA);
-#endif
-  }
-  return 0;
-}
 
 static void display_text_render(int x, int y, const char *text, int textlen,
                                 int font, uint16_t fgcolor, uint16_t bgcolor) {
@@ -732,7 +573,7 @@ static void display_text_render(int x, int y, const char *text, int textlen,
 
   // render glyphs
   for (int i = 0; i < textlen; i++) {
-    const uint8_t *g = display_get_glyph(font, (uint8_t)text[i]);
+    const uint8_t *g = font_get_glyph(font, (uint8_t)text[i]);
     if (!g) continue;
     const uint8_t w = g[0];      // width
     const uint8_t h = g[1];      // height
@@ -801,7 +642,7 @@ int display_text_width(const char *text, int textlen, int font) {
     textlen = strlen(text);
   }
   for (int i = 0; i < textlen; i++) {
-    const uint8_t *g = display_get_glyph(font, (uint8_t)text[i]);
+    const uint8_t *g = font_get_glyph(font, (uint8_t)text[i]);
     if (!g) continue;
     const uint8_t adv = g[2];  // advance
     width += adv;
@@ -833,7 +674,7 @@ int display_text_split(const char *text, int textlen, int font,
     if (text[i] == ' ') {
       lastspace = i;
     }
-    const uint8_t *g = display_get_glyph(font, (uint8_t)text[i]);
+    const uint8_t *g = font_get_glyph(font, (uint8_t)text[i]);
     if (!g) continue;
     const uint8_t adv = g[2];  // advance
     width += adv;
@@ -848,28 +689,6 @@ int display_text_split(const char *text, int textlen, int font,
   return textlen;
 }
 
-int display_text_height(int font) {
-  switch (font) {
-#ifdef TREZOR_FONT_NORMAL_ENABLE
-    case FONT_NORMAL:
-      return FONT_NORMAL_HEIGHT;
-#endif
-#ifdef TREZOR_FONT_MEDIUM_ENABLE
-    case FONT_MEDIUM:
-      return FONT_MEDIUM_HEIGHT;
-#endif
-#ifdef TREZOR_FONT_BOLD_ENABLE
-    case FONT_BOLD:
-      return FONT_BOLD_HEIGHT;
-#endif
-#ifdef TREZOR_FONT_MONO_ENABLE
-    case FONT_MONO:
-      return FONT_MONO_HEIGHT;
-#endif
-  }
-  return 0;
-}
-
 #define QR_MAX_VERSION 9
 
 void display_qrcode(int x, int y, const char *data, uint8_t scale) {

core/embed/extmod/modtrezorui/display.h

@@ -24,6 +24,7 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include "fonts/fonts.h"
 #if defined TREZOR_MODEL_T
 
 // ILI9341V, GC9307 and ST7789V drivers support 240px x 320px display resolution
@@ -69,19 +70,6 @@
 #define COLOR_WHITE 0xFFFF
 #define COLOR_BLACK 0x0000
 
-#ifdef TREZOR_FONT_NORMAL_ENABLE
-#define FONT_NORMAL (-1)
-#endif
-#ifdef TREZOR_FONT_MEDIUM_ENABLE
-#define FONT_MEDIUM (-5)
-#endif
-#ifdef TREZOR_FONT_BOLD_ENABLE
-#define FONT_BOLD (-2)
-#endif
-#ifdef TREZOR_FONT_MONO_ENABLE
-#define FONT_MONO (-3)
-#endif
-
 // provided by port
 
 void display_init(void);
@@ -126,7 +114,6 @@ void display_text_right(int x, int y, const char *text, int textlen, int font,
 int display_text_width(const char *text, int textlen, int font);
 int display_text_split(const char *text, int textlen, int font,
                        int requested_width);
-int display_text_height(int font);
 
 void display_qrcode(int x, int y, const char *data, uint8_t scale);
 
@@ -144,8 +131,6 @@ void display_set_window(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1);
 void display_pixeldata(uint16_t c);
 void display_pixeldata_dirty();
 
-const uint8_t *display_get_glyph(int font, uint8_t c);
-
 #if !(defined EMULATOR) && (defined TREZOR_MODEL_T)
 extern volatile uint8_t *const DISPLAY_CMD_ADDRESS;
 extern volatile uint8_t *const DISPLAY_DATA_ADDRESS;

core/embed/extmod/modtrezorui/fonts/font_pixeloperator_bold_8.h

@@ -3,5 +3,8 @@
 #if TREZOR_FONT_BPP != 1
 #error Wrong TREZOR_FONT_BPP (expected 1)
 #endif
+#define Font_PixelOperator_Bold_8_HEIGHT 8
+#define Font_PixelOperator_Bold_8_MAX_HEIGHT 8
+#define Font_PixelOperator_Bold_8_BASELINE 1
 extern const uint8_t* const Font_PixelOperator_Bold_8[126 + 1 - 32];
 extern const uint8_t Font_PixelOperator_Bold_8_glyph_nonprintable[];

core/embed/extmod/modtrezorui/fonts/font_pixeloperator_regular_8.h

@@ -3,5 +3,8 @@
 #if TREZOR_FONT_BPP != 1
 #error Wrong TREZOR_FONT_BPP (expected 1)
 #endif
+#define Font_PixelOperator_Regular_8_HEIGHT 8
+#define Font_PixelOperator_Regular_8_MAX_HEIGHT 8
+#define Font_PixelOperator_Regular_8_BASELINE 1
 extern const uint8_t* const Font_PixelOperator_Regular_8[126 + 1 - 32];
 extern const uint8_t Font_PixelOperator_Regular_8_glyph_nonprintable[];

core/embed/extmod/modtrezorui/fonts/font_pixeloperatormono_regular_8.h

@@ -3,5 +3,8 @@
 #if TREZOR_FONT_BPP != 1
 #error Wrong TREZOR_FONT_BPP (expected 1)
 #endif
+#define Font_PixelOperatorMono_Regular_8_HEIGHT 8
+#define Font_PixelOperatorMono_Regular_8_MAX_HEIGHT 8
+#define Font_PixelOperatorMono_Regular_8_BASELINE 1
 extern const uint8_t* const Font_PixelOperatorMono_Regular_8[126 + 1 - 32];
 extern const uint8_t Font_PixelOperatorMono_Regular_8_glyph_nonprintable[];

core/embed/extmod/modtrezorui/fonts/font_roboto_bold_20.h

@@ -3,5 +3,8 @@
 #if TREZOR_FONT_BPP != 4
 #error Wrong TREZOR_FONT_BPP (expected 4)
 #endif
+#define Font_Roboto_Bold_20_HEIGHT 20
+#define Font_Roboto_Bold_20_MAX_HEIGHT 22
+#define Font_Roboto_Bold_20_BASELINE 5
 extern const uint8_t* const Font_Roboto_Bold_20[126 + 1 - 32];
 extern const uint8_t Font_Roboto_Bold_20_glyph_nonprintable[];

core/embed/extmod/modtrezorui/fonts/font_roboto_regular_20.h

@@ -3,5 +3,8 @@
 #if TREZOR_FONT_BPP != 4
 #error Wrong TREZOR_FONT_BPP (expected 4)
 #endif
+#define Font_Roboto_Regular_20_HEIGHT 20
+#define Font_Roboto_Regular_20_MAX_HEIGHT 22
+#define Font_Roboto_Regular_20_BASELINE 5
 extern const uint8_t* const Font_Roboto_Regular_20[126 + 1 - 32];
 extern const uint8_t Font_Roboto_Regular_20_glyph_nonprintable[];

core/embed/extmod/modtrezorui/fonts/font_robotomono_regular_20.h

@@ -3,5 +3,8 @@
 #if TREZOR_FONT_BPP != 4
 #error Wrong TREZOR_FONT_BPP (expected 4)
 #endif
+#define Font_RobotoMono_Regular_20_HEIGHT 20
+#define Font_RobotoMono_Regular_20_MAX_HEIGHT 22
+#define Font_RobotoMono_Regular_20_BASELINE 5
 extern const uint8_t* const Font_RobotoMono_Regular_20[126 + 1 - 32];
 extern const uint8_t Font_RobotoMono_Regular_20_glyph_nonprintable[];

core/embed/extmod/modtrezorui/fonts/font_tthoves_bold_16.h

@@ -3,5 +3,8 @@
 #if TREZOR_FONT_BPP != 4
 #error Wrong TREZOR_FONT_BPP (expected 4)
 #endif
+#define Font_TTHoves_Bold_16_HEIGHT 16
+#define Font_TTHoves_Bold_16_MAX_HEIGHT 17
+#define Font_TTHoves_Bold_16_BASELINE 4
 extern const uint8_t* const Font_TTHoves_Bold_16[126 + 1 - 32];
 extern const uint8_t Font_TTHoves_Bold_16_glyph_nonprintable[];

core/embed/extmod/modtrezorui/fonts/font_tthoves_medium_20.h

@@ -3,5 +3,8 @@
 #if TREZOR_FONT_BPP != 4
 #error Wrong TREZOR_FONT_BPP (expected 4)
 #endif
+#define Font_TTHoves_Medium_20_HEIGHT 20
+#define Font_TTHoves_Medium_20_MAX_HEIGHT 20
+#define Font_TTHoves_Medium_20_BASELINE 4
 extern const uint8_t* const Font_TTHoves_Medium_20[126 + 1 - 32];
 extern const uint8_t Font_TTHoves_Medium_20_glyph_nonprintable[];

core/embed/extmod/modtrezorui/fonts/font_tthoves_regular_18.h

@@ -3,5 +3,8 @@
 #if TREZOR_FONT_BPP != 4
 #error Wrong TREZOR_FONT_BPP (expected 4)
 #endif
+#define Font_TTHoves_Regular_18_HEIGHT 18
+#define Font_TTHoves_Regular_18_MAX_HEIGHT 19
+#define Font_TTHoves_Regular_18_BASELINE 4
 extern const uint8_t* const Font_TTHoves_Regular_18[126 + 1 - 32];
 extern const uint8_t Font_TTHoves_Regular_18_glyph_nonprintable[];

core/embed/extmod/modtrezorui/fonts/fonts.c

@@ -0,0 +1,170 @@
+/*
+ * This file is part of the Trezor project, https://trezor.io/
+ *
+ * Copyright (c) SatoshiLabs
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "fonts.h"
+
+static uint8_t convert_char(const uint8_t c) {
+  static char last_was_utf8 = 0;
+
+  // non-printable ASCII character
+  if (c < ' ') {
+    last_was_utf8 = 0;
+    return 0x7F;
+  }
+
+  // regular ASCII character
+  if (c < 0x80) {
+    last_was_utf8 = 0;
+    return c;
+  }
+
+  // UTF-8 handling: https://en.wikipedia.org/wiki/UTF-8#Encoding
+
+  // bytes 11xxxxxx are first bytes of UTF-8 characters
+  if (c >= 0xC0) {
+    last_was_utf8 = 1;
+    return 0x7F;
+  }
+
+  if (last_was_utf8) {
+    // bytes 10xxxxxx can be successive UTF-8 characters ...
+    return 0;  // skip glyph
+  } else {
+    // ... or they are just non-printable ASCII characters
+    return 0x7F;
+  }
+}
+
+int font_height(int font) {
+  switch (font) {
+#ifdef TREZOR_FONT_NORMAL_ENABLE
+    case FONT_NORMAL:
+      return FONT_NORMAL_HEIGHT;
+#endif
+#ifdef TREZOR_FONT_MEDIUM_ENABLE
+    case FONT_MEDIUM:
+      return FONT_MEDIUM_HEIGHT;
+#endif
+#ifdef TREZOR_FONT_BOLD_ENABLE
+    case FONT_BOLD:
+      return FONT_BOLD_HEIGHT;
+#endif
+#ifdef TREZOR_FONT_MONO_ENABLE
+    case FONT_MONO:
+      return FONT_MONO_HEIGHT;
+#endif
+  }
+  return 0;
+}
+
+int font_max_height(int font) {
+  switch (font) {
+#ifdef TREZOR_FONT_NORMAL_ENABLE
+    case FONT_NORMAL:
+      return FONT_NORMAL_MAX_HEIGHT;
+#endif
+#ifdef TREZOR_FONT_MEDIUM_ENABLE
+    case FONT_MEDIUM:
+      return FONT_MEDIUM_MAX_HEIGHT;
+#endif
+#ifdef TREZOR_FONT_BOLD_ENABLE
+    case FONT_BOLD:
+      return FONT_BOLD_MAX_HEIGHT;
+#endif
+#ifdef TREZOR_FONT_MONO_ENABLE
+    case FONT_MONO:
+      return FONT_MONO_MAX_HEIGHT;
+#endif
+  }
+  return 0;
+}
+
+int font_baseline(int font) {
+  switch (font) {
+#ifdef TREZOR_FONT_NORMAL_ENABLE
+    case FONT_NORMAL:
+      return FONT_NORMAL_BASELINE;
+#endif
+#ifdef TREZOR_FONT_MEDIUM_ENABLE
+    case FONT_MEDIUM:
+      return FONT_MEDIUM_BASELINE;
+#endif
+#ifdef TREZOR_FONT_BOLD_ENABLE
+    case FONT_BOLD:
+      return FONT_BOLD_BASELINE;
+#endif
+#ifdef TREZOR_FONT_MONO_ENABLE
+    case FONT_MONO:
+      return FONT_MONO_BASELINE;
+#endif
+  }
+  return 0;
+}
+
+const uint8_t *font_get_glyph(int font, uint8_t c) {
+  c = convert_char(c);
+  if (!c) return 0;
+
+  // printable ASCII character
+  if (c >= ' ' && c < 0x7F) {
+    switch (font) {
+#ifdef TREZOR_FONT_NORMAL_ENABLE
+      case FONT_NORMAL:
+        return FONT_NORMAL_DATA[c - ' '];
+#endif
+#ifdef TREZOR_FONT_MEDIUM_ENABLE
+      case FONT_MEDIUM:
+        return FONT_MEDIUM_DATA[c - ' '];
+#endif
+#ifdef TREZOR_FONT_BOLD_ENABLE
+      case FONT_BOLD:
+        return FONT_BOLD_DATA[c - ' '];
+#endif
+#ifdef TREZOR_FONT_MONO_ENABLE
+      case FONT_MONO:
+        return FONT_MONO_DATA[c - ' '];
+#endif
+    }
+    return 0;
+  }
+
+// non-printable character
+#define PASTER(s) s##_glyph_nonprintable
+#define NONPRINTABLE_GLYPH(s) PASTER(s)
+
+  switch (font) {
+#ifdef TREZOR_FONT_NORMAL_ENABLE
+    case FONT_NORMAL:
+      return NONPRINTABLE_GLYPH(FONT_NORMAL_DATA);
+#endif
+#ifdef TREZOR_FONT_MEDIUM_ENABLE
+    case FONT_MEDIUM:
+      return NONPRINTABLE_GLYPH(FONT_MEDIUM_DATA);
+#endif
+#ifdef TREZOR_FONT_BOLD_ENABLE
+    case FONT_BOLD:
+      return NONPRINTABLE_GLYPH(FONT_BOLD_DATA);
+#endif
+#ifdef TREZOR_FONT_MONO_ENABLE
+    case FONT_MONO:
+      return NONPRINTABLE_GLYPH(FONT_MONO_DATA);
+#endif
+  }
+  return 0;
+}

core/embed/extmod/modtrezorui/fonts/fonts.h

@@ -0,0 +1,108 @@
+/*
+ * This file is part of the Trezor project, https://trezor.io/
+ *
+ * Copyright (c) SatoshiLabs
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _FONTS_H
+#define _FONTS_H
+
+#include "fonts/font_bitmap.h"
+
+#if defined TREZOR_MODEL_T
+#define TREZOR_FONT_BPP 4
+#elif defined TREZOR_MODEL_1
+#define TREZOR_FONT_BPP 1
+#elif defined TREZOR_MODEL_R
+#define TREZOR_FONT_BPP 1
+#else
+#error Unknown Trezor model
+#endif
+
+#define COMPOSE(font_name, suffix) font_name##suffix
+#define FONT_DEFINE(s, suffix) COMPOSE(s, suffix)
+
+#ifdef TREZOR_FONT_NORMAL_ENABLE
+#define FONT_NORMAL (-1)
+#include TREZOR_FONT_NORMAL_INCLUDE
+#define FONT_NORMAL_DATA TREZOR_FONT_NORMAL_ENABLE
+#define FONT_NORMAL_HEIGHT FONT_DEFINE(TREZOR_FONT_NORMAL_ENABLE, _HEIGHT)
+#define FONT_NORMAL_MAX_HEIGHT \
+  FONT_DEFINE(TREZOR_FONT_NORMAL_ENABLE, _MAX_HEIGHT)
+#define FONT_NORMAL_BASELINE FONT_DEFINE(TREZOR_FONT_NORMAL_ENABLE, _BASELINE)
+#endif
+
+#ifdef TREZOR_FONT_MEDIUM_ENABLE
+#include TREZOR_FONT_MEDIUM_INCLUDE
+#define FONT_MEDIUM (-5)
+#define FONT_MEDIUM_DATA TREZOR_FONT_MEDIUM_ENABLE
+#define FONT_MEDIUM_HEIGHT FONT_DEFINE(TREZOR_FONT_MEDIUM_ENABLE, _HEIGHT)
+#define FONT_MEDIUM_MAX_HEIGHT \
+  FONT_DEFINE(TREZOR_FONT_MEDIUM_ENABLE, _MAX_HEIGHT)
+#define FONT_MEDIUM_BASELINE FONT_DEFINE(TREZOR_FONT_MEDIUM_ENABLE, _BASELINE)
+#endif
+
+#ifdef TREZOR_FONT_MONO_ENABLE
+#include TREZOR_FONT_MONO_INCLUDE
+#define FONT_MONO (-3)
+#define FONT_MONO_DATA TREZOR_FONT_MONO_ENABLE
+#define FONT_MONO_HEIGHT FONT_DEFINE(TREZOR_FONT_MONO_ENABLE, _HEIGHT)
+#define FONT_MONO_MAX_HEIGHT FONT_DEFINE(TREZOR_FONT_MONO_ENABLE, _MAX_HEIGHT)
+#define FONT_MONO_BASELINE FONT_DEFINE(TREZOR_FONT_MONO_ENABLE, _BASELINE)
+#endif
+
+#ifdef TREZOR_FONT_BOLD_ENABLE
+#include TREZOR_FONT_BOLD_INCLUDE
+#define FONT_BOLD (-2)
+#define FONT_BOLD_DATA TREZOR_FONT_BOLD_ENABLE
+#define FONT_BOLD_HEIGHT FONT_DEFINE(TREZOR_FONT_BOLD_ENABLE, _HEIGHT)
+#define FONT_BOLD_MAX_HEIGHT FONT_DEFINE(TREZOR_FONT_BOLD_ENABLE, _MAX_HEIGHT)
+#define FONT_BOLD_BASELINE FONT_DEFINE(TREZOR_FONT_BOLD_ENABLE, _BASELINE)
+#endif
+
+#define MAX_FONT_H(A, B) ((A) > (B) ? (A) : (B))
+
+#define FONT_MAX_HEIGHT_1 0
+#ifdef TREZOR_FONT_NORMAL_ENABLE
+#define FONT_MAX_HEIGHT_2 MAX_FONT_H(FONT_NORMAL_MAX_HEIGHT, FONT_MAX_HEIGHT_1)
+#else
+#define FONT_MAX_HEIGHT_2 FONT_MAX_HEIGHT_1
+#endif
+
+#ifdef TREZOR_FONT_BOLD_ENABLE
+#define FONT_MAX_HEIGHT_3 MAX_FONT_H(FONT_BOLD_MAX_HEIGHT, FONT_MAX_HEIGHT_2)
+#else
+#define FONT_MAX_HEIGHT_3 FONT_MAX_HEIGHT_2
+#endif
+
+#ifdef TREZOR_FONT_MEDIUM_ENABLE
+#define FONT_MAX_HEIGHT_4 MAX_FONT_H(FONT_MEDIUM_MAX_HEIGHT, FONT_MAX_HEIGHT_3)
+#else
+#define FONT_MAX_HEIGHT_4 FONT_MAX_HEIGHT_3
+#endif
+
+#ifdef TREZOR_FONT_MONO_ENABLE
+#define FONT_MAX_HEIGHT MAX_FONT_H(FONT_MONO_MAX_HEIGHT, FONT_MAX_HEIGHT_4)
+#else
+#define FONT_MAX_HEIGHT FONT_MAX_HEIGHT_4
+#endif
+
+int font_height(int font);
+int font_max_height(int font);
+int font_baseline(int font);
+const uint8_t *font_get_glyph(int font, uint8_t c);
+
+#endif  //_FONTS_H

core/embed/rust/build.rs

@@ -259,7 +259,6 @@ fn generate_trezorhal_bindings() {
         .allowlist_function("display_backlight")
         .allowlist_function("display_text")
         .allowlist_function("display_text_width")
-        .allowlist_function("display_text_height")
         .allowlist_function("display_bar")
         .allowlist_function("display_bar_radius")
         .allowlist_function("display_icon")
@@ -269,9 +268,11 @@ fn generate_trezorhal_bindings() {
         .allowlist_function("display_pixeldata")
         .allowlist_function("display_pixeldata_dirty")
         .allowlist_function("display_set_window")
-        .allowlist_function("display_get_glyph")
         .allowlist_var("DISPLAY_CMD_ADDRESS")
         .allowlist_var("DISPLAY_DATA_ADDRESS")
+        // fonts
+        .allowlist_function("font_height")
+        .allowlist_function("font_get_glyph")
         // uzlib
         .allowlist_function("uzlib_uncompress_init")
         .allowlist_function("uzlib_uncompress")

core/embed/rust/src/trezorhal/display.rs

@@ -41,12 +41,12 @@ pub fn char_width(ch: char, font: i32) -> i16 {
 }
 
 pub fn get_char_glyph(ch: u8, font: i32) -> *const u8 {
-    unsafe { ffi::display_get_glyph(font, ch) }
+    unsafe { ffi::font_get_glyph(font, ch) }
 }
 
 pub fn text_height(font: i32) -> i16 {
     unsafe {
-        ffi::display_text_height(font)
+        ffi::font_height(font)
             .try_into()
             .unwrap_or(i16::MAX)
     }

core/embed/rust/trezorhal.h

@@ -1,5 +1,6 @@
 #include "common.h"
 #include "display.h"
+#include "fonts/fonts.h"
 #include "rgb_led.h"
 #include "secbool.h"
 #include "storage.h"

core/site_scons/tools.py

@@ -0,0 +1,11 @@
+
+def add_font(font_name, font, defines, sources):
+    if font is not None:
+        defines += [
+            'TREZOR_FONT_' + font_name + '_ENABLE=' + font,
+            'TREZOR_FONT_' + font_name + '_INCLUDE=\\"' + font.lower() + '.h\\"',
+            ]
+        sourcefile = 'embed/extmod/modtrezorui/fonts/' + font.lower() + '.c'
+        if sourcefile not in sources:
+            sources.append(sourcefile)
+

core/tools/codegen/gen_font.py

@@ -57,19 +57,9 @@ def process_face(name, style, size, bpp=4, shave_bearingX=0, ext="ttf"):
     face = freetype.Face("fonts/%s-%s.%s" % (name, style, ext))
     face.set_pixel_sizes(0, size)
     fontname = "%s_%s_%d" % (name.lower(), style.lower(), size)
-    with open("font_%s.h" % fontname, "wt") as f:
-        f.write("#include <stdint.h>\n\n")
-        f.write("#if TREZOR_FONT_BPP != %d\n" % bpp)
-        f.write("#error Wrong TREZOR_FONT_BPP (expected %d)\n" % bpp)
-        f.write("#endif\n")
-        f.write(
-            "extern const uint8_t* const Font_%s_%s_%d[%d + 1 - %d];\n"
-            % (name, style, size, MAX_GLYPH, MIN_GLYPH)
-        )
-        f.write(
-            "extern const uint8_t Font_%s_%s_%d_glyph_nonprintable[];\n"
-            % (name, style, size)
-        )
+    font_ymin = 0
+    font_ymax = 0
+
     with open("font_%s.c" % fontname, "wt") as f:
         f.write("#include <stdint.h>\n\n")
         f.write("// clang-format off\n\n")
@@ -94,6 +84,7 @@ def process_face(name, style, size, bpp=4, shave_bearingX=0, ext="ttf"):
             rows = bitmap.rows
             advance = metrics.horiAdvance // 64
             bearingX = metrics.horiBearingX // 64
+
             # discard space on the left side
             if shave_bearingX > 0:
                 advance -= min(advance, bearingX, shave_bearingX)
@@ -148,6 +139,12 @@ def process_face(name, style, size, bpp=4, shave_bearingX=0, ext="ttf"):
                 )
                 nonprintable += " };\n"
 
+
+            yMin = bearingY - rows
+            yMax = yMin + rows
+            font_ymin = min(font_ymin, yMin)
+            font_ymax = max(font_ymax, yMax)
+
         f.write(nonprintable)
 
         f.write(
@@ -158,6 +155,24 @@ def process_face(name, style, size, bpp=4, shave_bearingX=0, ext="ttf"):
             f.write("    Font_%s_%s_%d_glyph_%d,\n" % (name, style, size, i))
         f.write("};\n")
 
+    with open("font_%s.h" % fontname, "wt") as f:
+        f.write("#include <stdint.h>\n\n")
+        f.write("#if TREZOR_FONT_BPP != %d\n" % bpp)
+        f.write("#error Wrong TREZOR_FONT_BPP (expected %d)\n" % bpp)
+        f.write("#endif\n")
+
+        f.write("#define Font_%s_%s_%d_HEIGHT %d\n" % (name, style, size, size))
+        f.write("#define Font_%s_%s_%d_MAX_HEIGHT %d\n" % (name, style, size, font_ymax - font_ymin))
+        f.write("#define Font_%s_%s_%d_BASELINE %d\n" % (name, style, size, -font_ymin))
+        f.write(
+            "extern const uint8_t* const Font_%s_%s_%d[%d + 1 - %d];\n"
+            % (name, style, size, MAX_GLYPH, MIN_GLYPH)
+        )
+        f.write(
+            "extern const uint8_t Font_%s_%s_%d_glyph_nonprintable[];\n"
+            % (name, style, size)
+        )
+
 
 process_face("Roboto", "Regular", 20)
 process_face("Roboto", "Bold", 20)