From f984754b2a653c5effe6b92bba727df8b9e539ad Mon Sep 17 00:00:00 2001 From: Graeme Winter Date: Thu, 15 Apr 2021 06:10:09 +0100 Subject: [PATCH] WIP: 5x7 font Derived from https://github.com/graeme-winter/rpi-pico/blob/main/font5x7/generate.py which in turn derives the character set from http://sdf.org/~kt8216/font5x7/unknown-small-5x7.txt which I will properly document in a follow-up README --- .../modules/pico_scroll/pico_scroll_font.c | 146 ++++++++++++++++++ .../modules/pico_scroll/pico_scroll_font.h | 4 + 2 files changed, 150 insertions(+) create mode 100644 micropython/modules/pico_scroll/pico_scroll_font.c create mode 100644 micropython/modules/pico_scroll/pico_scroll_font.h diff --git a/micropython/modules/pico_scroll/pico_scroll_font.c b/micropython/modules/pico_scroll/pico_scroll_font.c new file mode 100644 index 00000000..0ec7ea45 --- /dev/null +++ b/micropython/modules/pico_scroll/pico_scroll_font.c @@ -0,0 +1,146 @@ +#include "pico_scroll_font.h" + +/* static font data */ +static unsigned char __bitmap[256][5] = { + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x0, 0x0}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x0, 0x0}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x0, 0x0}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x0, 0x0}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x0, 0x0}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x0, 0x0}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x0, 0x0}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x0, 0x0, 0x0, 0x0, 0x0}, + {0x7f, 0x0, 0x0, 0x0, 0x0}, {0x7f, 0x7f, 0x0, 0x0, 0x0}, + {0x7f, 0x7f, 0x7f, 0x0, 0x0}, {0x7f, 0x7f, 0x7f, 0x7f, 0x0}, + {0x7f, 0x7f, 0x7f, 0x7f, 0x7f}, {0x0, 0x7f, 0x7f, 0x7f, 0x7f}, + {0x0, 0x0, 0x7f, 0x7f, 0x7f}, {0x0, 0x0, 0x0, 0x7f, 0x7f}, + {0x0, 0x0, 0x0, 0x0, 0x7f}, {0x60, 0x70, 0x3f, 0x2, 0x3c}, + {0x3, 0x3, 0x30, 0x48, 0x48}, {0x3, 0x7b, 0x28, 0x28, 0x8}, + {0x4, 0xc, 0x1c, 0xc, 0x4}, {0x0, 0x3e, 0x1c, 0x8, 0x0}, + {0x0, 0x8, 0x1c, 0x3e, 0x0}, {0x10, 0x18, 0x1c, 0x18, 0x10}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x0, 0x0, 0x5f, 0x0, 0x0}, + {0x0, 0x7, 0x0, 0x7, 0x0}, {0x14, 0x7f, 0x14, 0x7f, 0x14}, + {0x24, 0x2a, 0x7f, 0x2a, 0x12}, {0x23, 0x13, 0x8, 0x64, 0x62}, + {0x36, 0x49, 0x55, 0x22, 0x50}, {0x0, 0x5, 0x3, 0x0, 0x0}, + {0x0, 0x1c, 0x22, 0x41, 0x0}, {0x0, 0x41, 0x22, 0x1c, 0x0}, + {0x8, 0x2a, 0x1c, 0x2a, 0x8}, {0x8, 0x8, 0x3e, 0x8, 0x8}, + {0x0, 0x50, 0x30, 0x0, 0x0}, {0x8, 0x8, 0x8, 0x8, 0x8}, + {0x0, 0x60, 0x60, 0x0, 0x0}, {0x20, 0x10, 0x8, 0x4, 0x2}, + {0x3e, 0x51, 0x49, 0x45, 0x3e}, {0x0, 0x42, 0x7f, 0x40, 0x0}, + {0x42, 0x61, 0x51, 0x49, 0x46}, {0x21, 0x41, 0x45, 0x4b, 0x31}, + {0x18, 0x14, 0x12, 0x7f, 0x10}, {0x27, 0x45, 0x45, 0x45, 0x39}, + {0x3c, 0x4a, 0x49, 0x49, 0x30}, {0x1, 0x71, 0x9, 0x5, 0x3}, + {0x36, 0x49, 0x49, 0x49, 0x36}, {0x6, 0x49, 0x49, 0x29, 0x1e}, + {0x0, 0x36, 0x36, 0x0, 0x0}, {0x0, 0x56, 0x36, 0x0, 0x0}, + {0x0, 0x8, 0x14, 0x22, 0x41}, {0x14, 0x14, 0x14, 0x14, 0x14}, + {0x41, 0x22, 0x14, 0x8, 0x0}, {0x2, 0x1, 0x51, 0x9, 0x6}, + {0x32, 0x49, 0x79, 0x41, 0x3e}, {0x7e, 0x11, 0x11, 0x11, 0x7e}, + {0x7f, 0x49, 0x49, 0x49, 0x36}, {0x3e, 0x41, 0x41, 0x41, 0x22}, + {0x7f, 0x41, 0x41, 0x22, 0x1c}, {0x7f, 0x49, 0x49, 0x49, 0x41}, + {0x7f, 0x9, 0x9, 0x1, 0x1}, {0x3e, 0x41, 0x41, 0x51, 0x32}, + {0x7f, 0x8, 0x8, 0x8, 0x7f}, {0x0, 0x41, 0x7f, 0x41, 0x0}, + {0x20, 0x40, 0x41, 0x3f, 0x1}, {0x7f, 0x8, 0x14, 0x22, 0x41}, + {0x7f, 0x40, 0x40, 0x40, 0x40}, {0x7f, 0x2, 0x4, 0x2, 0x7f}, + {0x7f, 0x4, 0x8, 0x10, 0x7f}, {0x3e, 0x41, 0x41, 0x41, 0x3e}, + {0x7f, 0x9, 0x9, 0x9, 0x6}, {0x3e, 0x41, 0x51, 0x21, 0x5e}, + {0x7f, 0x9, 0x19, 0x29, 0x46}, {0x46, 0x49, 0x49, 0x49, 0x31}, + {0x1, 0x1, 0x7f, 0x1, 0x1}, {0x3f, 0x40, 0x40, 0x40, 0x3f}, + {0x1f, 0x20, 0x40, 0x20, 0x1f}, {0x7f, 0x20, 0x18, 0x20, 0x7f}, + {0x63, 0x14, 0x8, 0x14, 0x63}, {0x3, 0x4, 0x78, 0x4, 0x3}, + {0x61, 0x51, 0x49, 0x45, 0x43}, {0x0, 0x0, 0x7f, 0x41, 0x41}, + {0x2, 0x4, 0x8, 0x10, 0x20}, {0x41, 0x41, 0x7f, 0x0, 0x0}, + {0x4, 0x2, 0x1, 0x2, 0x4}, {0x40, 0x40, 0x40, 0x40, 0x40}, + {0x0, 0x1, 0x2, 0x4, 0x0}, {0x20, 0x54, 0x54, 0x54, 0x78}, + {0x7f, 0x48, 0x44, 0x44, 0x38}, {0x38, 0x44, 0x44, 0x44, 0x20}, + {0x38, 0x44, 0x44, 0x48, 0x7f}, {0x38, 0x54, 0x54, 0x54, 0x18}, + {0x8, 0x7e, 0x9, 0x1, 0x2}, {0x8, 0x14, 0x54, 0x54, 0x3c}, + {0x7f, 0x8, 0x4, 0x4, 0x78}, {0x0, 0x44, 0x7d, 0x40, 0x0}, + {0x20, 0x40, 0x44, 0x3d, 0x0}, {0x0, 0x7f, 0x10, 0x28, 0x44}, + {0x0, 0x41, 0x7f, 0x40, 0x0}, {0x7c, 0x4, 0x18, 0x4, 0x78}, + {0x7c, 0x8, 0x4, 0x4, 0x78}, {0x38, 0x44, 0x44, 0x44, 0x38}, + {0x7c, 0x14, 0x14, 0x14, 0x8}, {0x8, 0x14, 0x14, 0x18, 0x7c}, + {0x7c, 0x8, 0x4, 0x4, 0x8}, {0x48, 0x54, 0x54, 0x54, 0x20}, + {0x4, 0x3f, 0x44, 0x40, 0x20}, {0x3c, 0x40, 0x40, 0x20, 0x7c}, + {0x1c, 0x20, 0x40, 0x20, 0x1c}, {0x3c, 0x40, 0x30, 0x40, 0x3c}, + {0x44, 0x28, 0x10, 0x28, 0x44}, {0xc, 0x50, 0x50, 0x50, 0x3c}, + {0x44, 0x64, 0x54, 0x4c, 0x44}, {0x0, 0x8, 0x36, 0x41, 0x0}, + {0x0, 0x0, 0x7f, 0x0, 0x0}, {0x0, 0x41, 0x36, 0x8, 0x0}, + {0x8, 0x8, 0x2a, 0x1c, 0x8}, {0x8, 0x1c, 0x2a, 0x8, 0x8}, + {0x70, 0x29, 0x24, 0x29, 0x70}, {0x70, 0x28, 0x25, 0x28, 0x70}, + {0x70, 0x2a, 0x25, 0x2a, 0x70}, {0x20, 0x54, 0x56, 0x55, 0x78}, + {0x20, 0x54, 0x55, 0x54, 0x78}, {0x7f, 0x7f, 0x49, 0x49, 0x49}, + {0x3d, 0x42, 0x42, 0x42, 0x3d}, {0x30, 0x4a, 0x48, 0x4a, 0x30}, + {0x5c, 0x32, 0x2a, 0x26, 0x1d}, {0x18, 0x64, 0x3c, 0x26, 0x18}, + {0x3d, 0x40, 0x40, 0x40, 0x3d}, {0x38, 0x42, 0x40, 0x22, 0x78}, + {0x15, 0x16, 0x7c, 0x16, 0x15}, {0x54, 0x34, 0x1c, 0x16, 0x15}, + {0x18, 0x4, 0x18, 0x20, 0x18}, {0x4a, 0x55, 0x55, 0x55, 0x29}, + {0x7e, 0x9, 0x7f, 0x9, 0x9}, {0x34, 0x54, 0x38, 0x54, 0x58}, + {0x48, 0x7e, 0x49, 0x49, 0x42}, {0x7f, 0x5, 0x15, 0x7a, 0x50}, + {0x1c, 0x3e, 0x3e, 0x3e, 0x1c}, {0x1c, 0x22, 0x22, 0x22, 0x1c}, + {0x8, 0x1c, 0x3e, 0x1c, 0x8}, {0x8, 0x14, 0x22, 0x14, 0x8}, + {0x0, 0x0, 0x77, 0x0, 0x0}, {0xe, 0x51, 0x31, 0x11, 0x11}, + {0x60, 0x50, 0x48, 0x44, 0x7e}, {0x40, 0x44, 0x4a, 0x51, 0x40}, + {0x40, 0x51, 0x4a, 0x44, 0x40}, {0x10, 0x38, 0x54, 0x10, 0x1f}, + {0x4, 0x2, 0x7f, 0x2, 0x4}, {0x10, 0x20, 0x7f, 0x20, 0x10}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x70, 0x50, 0x70, 0x0, 0x0}, + {0x0, 0x0, 0xf, 0x1, 0x1}, {0x40, 0x40, 0x78, 0x0, 0x0}, + {0x10, 0x20, 0x40, 0x0, 0x0}, {0x0, 0x30, 0x30, 0x0, 0x0}, + {0x5, 0x5, 0x45, 0x25, 0x1f}, {0x0, 0x0, 0x0, 0x0, 0x0}, + {0x4, 0x44, 0x34, 0x14, 0xc}, {0x20, 0x10, 0x78, 0x4, 0x0}, + {0x18, 0x8, 0x4c, 0x38, 0x0}, {0x48, 0x28, 0x18, 0x7c, 0x8}, + {0x8, 0x7c, 0x8, 0x28, 0x18}, {0x40, 0x48, 0x48, 0x78, 0x40}, + {0x54, 0x54, 0x54, 0x7c, 0x0}, {0x18, 0x0, 0x58, 0x40, 0x38}, + {0x8, 0x8, 0x8, 0x8, 0x8}, {0x1, 0x41, 0x3d, 0x9, 0x7}, + {0x20, 0x10, 0x78, 0x4, 0x2}, {0xe, 0x2, 0x43, 0x22, 0x1e}, + {0x42, 0x42, 0x7e, 0x42, 0x42}, {0x22, 0x12, 0xa, 0x7f, 0x2}, + {0x42, 0x3f, 0x2, 0x42, 0x3e}, {0xa, 0xa, 0x7f, 0xa, 0xa}, + {0x4, 0x43, 0x41, 0x21, 0x1f}, {0x4, 0x3, 0x42, 0x3e, 0x2}, + {0x41, 0x41, 0x41, 0x41, 0x7f}, {0x2, 0x4f, 0x22, 0x1f, 0x2}, + {0x4a, 0x4a, 0x40, 0x20, 0x1c}, {0x42, 0x22, 0x12, 0x2a, 0x46}, + {0x2, 0x3f, 0x42, 0x4a, 0x46}, {0x3, 0x44, 0x40, 0x20, 0x1e}, + {0x8, 0x46, 0x4a, 0x32, 0x1e}, {0xa, 0x4a, 0x3e, 0x9, 0x8}, + {0xe, 0x0, 0x4e, 0x20, 0x1e}, {0x4, 0x45, 0x3d, 0x5, 0x4}, + {0x0, 0x7f, 0x8, 0x10, 0x0}, {0x44, 0x24, 0x1f, 0x4, 0x4}, + {0x40, 0x42, 0x42, 0x42, 0x40}, {0x42, 0x2a, 0x12, 0x2a, 0x6}, + {0x22, 0x12, 0x7b, 0x16, 0x22}, {0x0, 0x40, 0x20, 0x1f, 0x0}, + {0x78, 0x0, 0x2, 0x4, 0x78}, {0x3f, 0x44, 0x44, 0x44, 0x44}, + {0x2, 0x42, 0x42, 0x22, 0x1e}, {0x4, 0x2, 0x4, 0x8, 0x30}, + {0x32, 0x2, 0x7f, 0x2, 0x32}, {0x2, 0x12, 0x22, 0x52, 0xe}, + {0x0, 0x2a, 0x2a, 0x2a, 0x40}, {0x38, 0x24, 0x22, 0x20, 0x70}, + {0x40, 0x28, 0x10, 0x28, 0x6}, {0x2, 0x3e, 0x4a, 0x4a, 0x4a}, + {0x4, 0x7f, 0x4, 0x14, 0xc}, {0x40, 0x42, 0x42, 0x7e, 0x40}, + {0x4a, 0x4a, 0x4a, 0x4a, 0x7e}, {0x4, 0x5, 0x45, 0x25, 0x1c}, + {0xf, 0x40, 0x20, 0x1f, 0x0}, {0x7c, 0x0, 0x7e, 0x40, 0x30}, + {0x7e, 0x40, 0x20, 0x10, 0x8}, {0x7e, 0x42, 0x42, 0x42, 0x7e}, + {0xe, 0x2, 0x42, 0x22, 0x1e}, {0x42, 0x42, 0x40, 0x20, 0x18}, + {0x2, 0x4, 0x1, 0x2, 0x0}, {0x7, 0x5, 0x7, 0x0, 0x0}, + {0x38, 0x44, 0x48, 0x30, 0x40}, {0x20, 0x55, 0x54, 0x55, 0x78}, + {0x7c, 0x2a, 0x2a, 0x2a, 0x14}, {0x28, 0x54, 0x54, 0x44, 0x20}, + {0x7e, 0x10, 0x10, 0x8, 0x1e}, {0x38, 0x44, 0x4c, 0x54, 0x24}, + {0x78, 0x14, 0x12, 0x12, 0xc}, {0x8, 0x54, 0x54, 0x54, 0x3c}, + {0x20, 0x40, 0x3c, 0x4, 0x4}, {0x2, 0x2, 0x0, 0x7, 0x0}, + {0x20, 0x40, 0x44, 0x3d, 0x0}, {0x5, 0x2, 0x5, 0x0, 0x0}, + {0x18, 0x24, 0x7e, 0x24, 0x10}, {0x14, 0x7f, 0x54, 0x40, 0x40}, + {0x7c, 0x9, 0x5, 0x5, 0x78}, {0x38, 0x45, 0x44, 0x45, 0x38}, + {0x7e, 0x14, 0x12, 0x12, 0xc}, {0xc, 0x12, 0x12, 0x14, 0x7e}, + {0x3c, 0x4a, 0x4a, 0x4a, 0x3c}, {0x30, 0x28, 0x10, 0x28, 0x18}, + {0x58, 0x64, 0x4, 0x64, 0x58}, {0x3c, 0x41, 0x40, 0x21, 0x7c}, + {0x63, 0x55, 0x49, 0x41, 0x41}, {0x44, 0x3c, 0x4, 0x7c, 0x44}, + {0x45, 0x29, 0x11, 0x29, 0x45}, {0xc, 0x50, 0x50, 0x50, 0x3c}, + {0xa, 0xa, 0x7e, 0xa, 0x9}, {0x44, 0x3c, 0x14, 0x14, 0x74}, + {0x7c, 0x14, 0x1c, 0x14, 0x7c}, {0x8, 0x8, 0x2a, 0x8, 0x8}, + {0x0, 0x0, 0x0, 0x0, 0x0}, {0x7f, 0x7f, 0x7f, 0x7f, 0x7f}, +}; + +/* render a text string to a pre-allocated buffer - strlen(text) * 6 bytes */ +int render(unsigned char *text, int nchr, unsigned char *buffer, int nbfr) { + // TODO check nbfr >= 6 * nchr + + for (int i = 0; i < nchr; i++) { + unsigned char *symbol = __bitmap[text[i]]; + for (int j = 0; j < 5; j++) { + buffer[i * 6 + j] = symbol[j]; + } + buffer[i * 6 + 6] = 0x0; + } +} diff --git a/micropython/modules/pico_scroll/pico_scroll_font.h b/micropython/modules/pico_scroll/pico_scroll_font.h new file mode 100644 index 00000000..0490dc68 --- /dev/null +++ b/micropython/modules/pico_scroll/pico_scroll_font.h @@ -0,0 +1,4 @@ +#pragma once + +// external font API +int render(unsigned char *text, int nchr, unsigned char *buffer, int nbfr);