Begin font parsing and packing for terminal

.gitmodules

@@ -86,3 +86,9 @@
 [submodule "tools/adabot"]
 	path = tools/adabot
 	url = https://github.com/adafruit/adabot.git
+[submodule "tools/bitmap_font"]
+	path = tools/bitmap_font
+	url = https://github.com/adafruit/Adafruit_CircuitPython_BitmapFont.git
+[submodule "tools/Tecate-bitmap-fonts"]
+	path = tools/Tecate-bitmap-fonts
+	url = https://github.com/Tecate/bitmap-fonts.git

shared-module/displayio/__init__.c

@@ -2,11 +2,13 @@
 #include <string.h>
 #include "shared-module/displayio/__init__.h"
 
+
 #include "shared-bindings/displayio/Bitmap.h"
 #include "shared-bindings/displayio/Display.h"
 #include "shared-bindings/displayio/Group.h"
 #include "shared-bindings/displayio/Palette.h"
 #include "shared-bindings/displayio/Sprite.h"
+#include "supervisor/shared/display.h"
 #include "supervisor/usb.h"
 
 primary_display_t displays[CIRCUITPY_DISPLAY_LIMIT];

supervisor/shared/display.h

@@ -0,0 +1,35 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Scott Shawcroft for 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.
+ */
+
+#ifndef MICROPY_INCLUDED_SUPERVISOR_SHARED_DISPLAY_H
+#define MICROPY_INCLUDED_SUPERVISOR_SHARED_DISPLAY_H
+
+#include "shared-bindings/displayio/Bitmap.h"
+// These are autogenerated resources.
+
+const displayio_bitmap_t terminal_font;
+
+#endif  // MICROPY_INCLUDED_SUPERVISOR_SHARED_DISPLAY_H

supervisor/supervisor.mk

@@ -71,7 +71,7 @@ else
 	CFLAGS += -DUSB_AVAILABLE
 endif
 
-SUPERVISOR_O = $(addprefix $(BUILD)/, $(SRC_SUPERVISOR:.c=.o))
+SUPERVISOR_O = $(addprefix $(BUILD)/, $(SRC_SUPERVISOR:.c=.o)) $(BUILD)/autogen_display_resources.o
 
 $(BUILD)/supervisor/shared/translate.o: $(HEADER_BUILD)/qstrdefs.generated.h
 
@@ -90,3 +90,12 @@ autogen_usb_descriptor.intermediate: ../../tools/gen_usb_descriptor.py Makefile
 		--serial_number_length $(USB_SERIAL_NUMBER_LENGTH)\
 		--output_c_file $(BUILD)/autogen_usb_descriptor.c\
 		--output_h_file $(BUILD)/genhdr/autogen_usb_descriptor.h
+
+CIRCUITPY_DISPLAY_FONT = "fonts/test.bdf"
+
+$(BUILD)/autogen_display_resources.c: ../../tools/gen_display_resources.py $(HEADER_BUILD)/qstrdefs.generated.h Makefile | $(HEADER_BUILD)
+	$(STEPECHO) "GEN $@"
+	$(Q)install -d $(BUILD)/genhdr
+	$(Q)$(PYTHON3) ../../tools/gen_display_resources.py \
+		--font $(CIRCUITPY_DISPLAY_FONT) \
+		--output_c_file $(BUILD)/autogen_display_resources.c

tools/Tecate-bitmap-fonts

@@ -0,0 +1 @@
+Subproject commit 6f52a7ca0838967cc57e9a44d76c6e1f60e62842

tools/bitmap_font

@@ -0,0 +1 @@
+Subproject commit 7320e8ff94312c791aeed1a6956f8640e1dddc66

tools/gen_display_resources.py

@@ -0,0 +1,68 @@
+import argparse
+
+import os
+import sys
+
+sys.path.append("bitmap_font")
+
+from adafruit_bitmap_font import bitmap_font
+
+parser = argparse.ArgumentParser(description='Generate USB descriptors.')
+parser.add_argument('--font', type=str,
+                    help='manufacturer of the device', required=True)
+parser.add_argument('--output_c_file', type=argparse.FileType('w'), required=True)
+
+args = parser.parse_args()
+
+args.font
+
+c_file = args.output_c_file
+
+c_file.write("""\
+
+#include "supervisor/shared/display.h"
+
+""")
+
+class BitmapStub:
+    def __init__(self, width, height, color_depth):
+        self.width = width
+        self.rows = [b''] * height
+
+    def _load_row(self, y, row):
+        self.rows[y] = bytes(row)
+
+f = bitmap_font.load_font(args.font, BitmapStub)
+f.load_glyphs(range(0x20, 0x7f))
+
+print(f.get_bounding_box())
+real_bb = [0, 0]
+
+visible_ascii = bytes(range(0x20, 0x7f)).decode("utf-8")
+all_characters = visible_ascii
+for c in all_characters:
+    g = f.get_glyph(ord(c))
+    x, y, dx, dy = g["bounds"]
+    print(c, g["bounds"], g["shift"])
+    if g["shift"][1] != 0:
+        raise RuntimeError("y shift")
+    real_bb[0] = max(max(real_bb[0], x - dx), g["shift"][0])
+    real_bb[1] = max(real_bb[1], y - dy)
+
+real_bb[1] += 1
+print(real_bb)
+
+tile_x, tile_y = real_bb
+
+for c in all_characters:
+    g = f.get_glyph(ord(c))
+    #print(c, g["bounds"], g["shift"])
+    for row in g["bitmap"].rows:
+        for i in range(g["bounds"][0]):
+            byte = i // 8
+            bit = i % 8
+            # if row[byte] & (1 << (7-bit)) != 0:
+            #     print("*",end="")
+            # else:
+            #     print("_",end="")
+        #print()