mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-11-24 13:33:06 +00:00
389ff92cc1
* Makefile, Scripts: new linter * About: remove ID from IC * Firmware: remove double define for DIVC/DIVR * Scripts: check folder names too. Docker: replace syntax check with make lint. * Reformat Sources and Migrate to new file naming convention * Docker: symlink clang-format-12 to clang-format * Add coding style guide
417 lines
12 KiB
C
417 lines
12 KiB
C
/*
|
|
|
|
u8x8_8x8.c
|
|
|
|
font procedures, directly interfaces display procedures
|
|
|
|
Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
|
|
|
|
Copyright (c) 2016, olikraus@gmail.com
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without modification,
|
|
are permitted provided that the following conditions are met:
|
|
|
|
* Redistributions of source code must retain the above copyright notice, this list
|
|
of conditions and the following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above copyright notice, this
|
|
list of conditions and the following disclaimer in the documentation and/or other
|
|
materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
|
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
#include "u8x8.h"
|
|
|
|
#if defined(ESP8266)
|
|
uint8_t u8x8_pgm_read_esp(const uint8_t* addr) {
|
|
uint32_t bytes;
|
|
bytes = *(uint32_t*)((uint32_t)addr & ~3);
|
|
return ((uint8_t*)&bytes)[(uint32_t)addr & 3];
|
|
}
|
|
#endif
|
|
|
|
void u8x8_SetFont(u8x8_t* u8x8, const uint8_t* font_8x8) {
|
|
u8x8->font = font_8x8;
|
|
}
|
|
|
|
/*
|
|
Args:
|
|
u8x8: ptr to u8x8 structure
|
|
encoding: glyph for which the data is requested (must be between 0 and 255)
|
|
buf: pointer to 8 bytes
|
|
*/
|
|
static void u8x8_get_glyph_data(u8x8_t* u8x8, uint8_t encoding, uint8_t* buf, uint8_t tile_offset)
|
|
U8X8_NOINLINE;
|
|
static void
|
|
u8x8_get_glyph_data(u8x8_t* u8x8, uint8_t encoding, uint8_t* buf, uint8_t tile_offset) {
|
|
uint8_t first, last, tiles, i;
|
|
uint16_t offset;
|
|
first = u8x8_pgm_read(u8x8->font + 0);
|
|
last = u8x8_pgm_read(u8x8->font + 1);
|
|
tiles = u8x8_pgm_read(u8x8->font + 2); /* new 2019 format */
|
|
tiles *= u8x8_pgm_read(u8x8->font + 3); /* new 2019 format */
|
|
|
|
/* get the glyph bitmap from the font */
|
|
if(first <= encoding && encoding <= last) {
|
|
offset = encoding;
|
|
offset -= first;
|
|
offset *= tiles; /* new 2019 format */
|
|
offset += tile_offset; /* new 2019 format */
|
|
offset *= 8;
|
|
offset += 4; /* changed from 2 to 4, new 2019 format */
|
|
for(i = 0; i < 8; i++) {
|
|
buf[i] = u8x8_pgm_read(u8x8->font + offset);
|
|
offset++;
|
|
}
|
|
} else {
|
|
for(i = 0; i < 8; i++) {
|
|
buf[i] = 0;
|
|
}
|
|
}
|
|
|
|
/* invert the bitmap if required */
|
|
if(u8x8->is_font_inverse_mode) {
|
|
for(i = 0; i < 8; i++) {
|
|
buf[i] ^= 255;
|
|
}
|
|
}
|
|
}
|
|
|
|
void u8x8_DrawGlyph(u8x8_t* u8x8, uint8_t x, uint8_t y, uint8_t encoding) {
|
|
uint8_t th = u8x8_pgm_read(u8x8->font + 2); /* new 2019 format */
|
|
uint8_t tv = u8x8_pgm_read(u8x8->font + 3); /* new 2019 format */
|
|
uint8_t xx, tile;
|
|
uint8_t buf[8];
|
|
th += x;
|
|
tv += y;
|
|
tile = 0;
|
|
do {
|
|
xx = x;
|
|
do {
|
|
u8x8_get_glyph_data(u8x8, encoding, buf, tile);
|
|
u8x8_DrawTile(u8x8, xx, y, 1, buf);
|
|
tile++;
|
|
xx++;
|
|
} while(xx < th);
|
|
y++;
|
|
} while(y < tv);
|
|
}
|
|
|
|
/*
|
|
Source: http://graphics.stanford.edu/~seander/bithacks.html
|
|
Section: Interleave bits by Binary Magic Numbers
|
|
Original codes is here:
|
|
static const unsigned int B[] = {0x55555555, 0x33333333, 0x0F0F0F0F, 0x00FF00FF};
|
|
static const unsigned int S[] = {1, 2, 4, 8};
|
|
|
|
unsigned int x; // Interleave lower 16 bits of x and y, so the bits of x
|
|
unsigned int y; // are in the even positions and bits from y in the odd;
|
|
unsigned int z; // z gets the resulting 32-bit Morton Number.
|
|
// x and y must initially be less than 65536.
|
|
|
|
x = (x | (x << S[3])) & B[3];
|
|
x = (x | (x << S[2])) & B[2];
|
|
x = (x | (x << S[1])) & B[1];
|
|
x = (x | (x << S[0])) & B[0];
|
|
|
|
y = (y | (y << S[3])) & B[3];
|
|
y = (y | (y << S[2])) & B[2];
|
|
y = (y | (y << S[1])) & B[1];
|
|
y = (y | (y << S[0])) & B[0];
|
|
|
|
z = x | (y << 1);
|
|
*/
|
|
uint16_t u8x8_upscale_byte(uint8_t x) {
|
|
uint16_t y = x;
|
|
y |= (y << 4); // x = (x | (x << S[2])) & B[2];
|
|
y &= 0x0f0f;
|
|
y |= (y << 2); // x = (x | (x << S[1])) & B[1];
|
|
y &= 0x3333;
|
|
y |= (y << 1); // x = (x | (x << S[0])) & B[0];
|
|
y &= 0x5555;
|
|
|
|
y |= (y << 1); // z = x | (y << 1);
|
|
return y;
|
|
}
|
|
|
|
static void u8x8_upscale_buf(uint8_t* src, uint8_t* dest) U8X8_NOINLINE;
|
|
static void u8x8_upscale_buf(uint8_t* src, uint8_t* dest) {
|
|
uint8_t i = 4;
|
|
do {
|
|
*dest++ = *src;
|
|
*dest++ = *src++;
|
|
i--;
|
|
} while(i > 0);
|
|
}
|
|
|
|
static void
|
|
u8x8_draw_2x2_subglyph(u8x8_t* u8x8, uint8_t x, uint8_t y, uint8_t encoding, uint8_t tile) {
|
|
uint8_t i;
|
|
uint16_t t;
|
|
uint8_t buf[8];
|
|
uint8_t buf1[8];
|
|
uint8_t buf2[8];
|
|
u8x8_get_glyph_data(u8x8, encoding, buf, tile);
|
|
for(i = 0; i < 8; i++) {
|
|
t = u8x8_upscale_byte(buf[i]);
|
|
buf1[i] = t >> 8;
|
|
buf2[i] = t & 255;
|
|
}
|
|
u8x8_upscale_buf(buf2, buf);
|
|
u8x8_DrawTile(u8x8, x, y, 1, buf);
|
|
|
|
u8x8_upscale_buf(buf2 + 4, buf);
|
|
u8x8_DrawTile(u8x8, x + 1, y, 1, buf);
|
|
|
|
u8x8_upscale_buf(buf1, buf);
|
|
u8x8_DrawTile(u8x8, x, y + 1, 1, buf);
|
|
|
|
u8x8_upscale_buf(buf1 + 4, buf);
|
|
u8x8_DrawTile(u8x8, x + 1, y + 1, 1, buf);
|
|
}
|
|
|
|
void u8x8_Draw2x2Glyph(u8x8_t* u8x8, uint8_t x, uint8_t y, uint8_t encoding) {
|
|
uint8_t th = u8x8_pgm_read(u8x8->font + 2); /* new 2019 format */
|
|
uint8_t tv = u8x8_pgm_read(u8x8->font + 3); /* new 2019 format */
|
|
uint8_t xx, tile;
|
|
th *= 2;
|
|
th += x;
|
|
tv *= 2;
|
|
tv += y;
|
|
tile = 0;
|
|
do {
|
|
xx = x;
|
|
do {
|
|
u8x8_draw_2x2_subglyph(u8x8, xx, y, encoding, tile);
|
|
tile++;
|
|
xx += 2;
|
|
} while(xx < th);
|
|
y += 2;
|
|
} while(y < tv);
|
|
}
|
|
|
|
/* https://github.com/olikraus/u8g2/issues/474 */
|
|
static void
|
|
u8x8_draw_1x2_subglyph(u8x8_t* u8x8, uint8_t x, uint8_t y, uint8_t encoding, uint8_t tile) {
|
|
uint8_t i;
|
|
uint16_t t;
|
|
uint8_t buf[8];
|
|
uint8_t buf1[8];
|
|
uint8_t buf2[8];
|
|
u8x8_get_glyph_data(u8x8, encoding, buf, tile);
|
|
for(i = 0; i < 8; i++) {
|
|
t = u8x8_upscale_byte(buf[i]);
|
|
buf1[i] = t >> 8;
|
|
buf2[i] = t & 255;
|
|
}
|
|
u8x8_DrawTile(u8x8, x, y, 1, buf2);
|
|
u8x8_DrawTile(u8x8, x, y + 1, 1, buf1);
|
|
}
|
|
|
|
void u8x8_Draw1x2Glyph(u8x8_t* u8x8, uint8_t x, uint8_t y, uint8_t encoding) {
|
|
uint8_t th = u8x8_pgm_read(u8x8->font + 2); /* new 2019 format */
|
|
uint8_t tv = u8x8_pgm_read(u8x8->font + 3); /* new 2019 format */
|
|
uint8_t xx, tile;
|
|
th += x;
|
|
tv *= 2;
|
|
tv += y;
|
|
tile = 0;
|
|
do {
|
|
xx = x;
|
|
do {
|
|
u8x8_draw_1x2_subglyph(u8x8, xx, y, encoding, tile);
|
|
tile++;
|
|
xx++;
|
|
} while(xx < th);
|
|
y += 2;
|
|
} while(y < tv);
|
|
}
|
|
|
|
/*
|
|
source: https://en.wikipedia.org/wiki/UTF-8
|
|
Bits from to bytes Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6
|
|
7 U+0000 U+007F 1 0xxxxxxx
|
|
11 U+0080 U+07FF 2 110xxxxx 10xxxxxx
|
|
16 U+0800 U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx
|
|
21 U+10000 U+1FFFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
|
|
26 U+200000 U+3FFFFFF 5 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
|
|
31 U+4000000 U+7FFFFFFF 6 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
|
|
|
|
|
|
*/
|
|
|
|
/* reset the internal state machine */
|
|
void u8x8_utf8_init(u8x8_t* u8x8) {
|
|
u8x8->utf8_state = 0; /* also reset during u8x8_SetupDefaults() */
|
|
}
|
|
|
|
uint16_t u8x8_ascii_next(U8X8_UNUSED u8x8_t* u8x8, uint8_t b) {
|
|
if(b == 0 || b == '\n') /* '\n' terminates the string to support the string list procedures */
|
|
return 0x0ffff; /* end of string detected*/
|
|
return b;
|
|
}
|
|
|
|
/*
|
|
pass a byte from an utf8 encoded string to the utf8 decoder state machine
|
|
returns
|
|
0x0fffe: no glyph, just continue
|
|
0x0ffff: end of string
|
|
anything else: The decoded encoding
|
|
*/
|
|
uint16_t u8x8_utf8_next(u8x8_t* u8x8, uint8_t b) {
|
|
if(b == 0 || b == '\n') /* '\n' terminates the string to support the string list procedures */
|
|
return 0x0ffff; /* end of string detected, pending UTF8 is discarded */
|
|
if(u8x8->utf8_state == 0) {
|
|
if(b >= 0xfc) /* 6 byte sequence */
|
|
{
|
|
u8x8->utf8_state = 5;
|
|
b &= 1;
|
|
} else if(b >= 0xf8) {
|
|
u8x8->utf8_state = 4;
|
|
b &= 3;
|
|
} else if(b >= 0xf0) {
|
|
u8x8->utf8_state = 3;
|
|
b &= 7;
|
|
} else if(b >= 0xe0) {
|
|
u8x8->utf8_state = 2;
|
|
b &= 15;
|
|
} else if(b >= 0xc0) {
|
|
u8x8->utf8_state = 1;
|
|
b &= 0x01f;
|
|
} else {
|
|
/* do nothing, just use the value as encoding */
|
|
return b;
|
|
}
|
|
u8x8->encoding = b;
|
|
return 0x0fffe;
|
|
} else {
|
|
u8x8->utf8_state--;
|
|
/* The case b < 0x080 (an illegal UTF8 encoding) is not checked here. */
|
|
u8x8->encoding <<= 6;
|
|
b &= 0x03f;
|
|
u8x8->encoding |= b;
|
|
if(u8x8->utf8_state != 0) return 0x0fffe; /* nothing to do yet */
|
|
}
|
|
return u8x8->encoding;
|
|
}
|
|
|
|
static uint8_t u8x8_draw_string(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) U8X8_NOINLINE;
|
|
static uint8_t u8x8_draw_string(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) {
|
|
uint16_t e;
|
|
uint8_t cnt = 0;
|
|
uint8_t th = u8x8_pgm_read(u8x8->font + 2); /* new 2019 format */
|
|
|
|
u8x8_utf8_init(u8x8);
|
|
for(;;) {
|
|
e = u8x8->next_cb(u8x8, (uint8_t)*s);
|
|
if(e == 0x0ffff) break;
|
|
s++;
|
|
if(e != 0x0fffe) {
|
|
u8x8_DrawGlyph(u8x8, x, y, e);
|
|
x += th;
|
|
cnt++;
|
|
}
|
|
}
|
|
return cnt;
|
|
}
|
|
|
|
uint8_t u8x8_DrawString(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) {
|
|
u8x8->next_cb = u8x8_ascii_next;
|
|
return u8x8_draw_string(u8x8, x, y, s);
|
|
}
|
|
|
|
uint8_t u8x8_DrawUTF8(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) {
|
|
u8x8->next_cb = u8x8_utf8_next;
|
|
return u8x8_draw_string(u8x8, x, y, s);
|
|
}
|
|
|
|
static uint8_t
|
|
u8x8_draw_2x2_string(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) U8X8_NOINLINE;
|
|
static uint8_t u8x8_draw_2x2_string(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) {
|
|
uint16_t e;
|
|
uint8_t cnt = 0;
|
|
uint8_t th = u8x8_pgm_read(u8x8->font + 2); /* new 2019 format */
|
|
|
|
th <<= 1;
|
|
|
|
u8x8_utf8_init(u8x8);
|
|
for(;;) {
|
|
e = u8x8->next_cb(u8x8, (uint8_t)*s);
|
|
if(e == 0x0ffff) break;
|
|
s++;
|
|
if(e != 0x0fffe) {
|
|
u8x8_Draw2x2Glyph(u8x8, x, y, e);
|
|
x += th;
|
|
cnt++;
|
|
}
|
|
}
|
|
return cnt;
|
|
}
|
|
|
|
uint8_t u8x8_Draw2x2String(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) {
|
|
u8x8->next_cb = u8x8_ascii_next;
|
|
return u8x8_draw_2x2_string(u8x8, x, y, s);
|
|
}
|
|
|
|
uint8_t u8x8_Draw2x2UTF8(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) {
|
|
u8x8->next_cb = u8x8_utf8_next;
|
|
return u8x8_draw_2x2_string(u8x8, x, y, s);
|
|
}
|
|
|
|
static uint8_t
|
|
u8x8_draw_1x2_string(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) U8X8_NOINLINE;
|
|
static uint8_t u8x8_draw_1x2_string(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) {
|
|
uint16_t e;
|
|
uint8_t cnt = 0;
|
|
uint8_t th = u8x8_pgm_read(u8x8->font + 2); /* new 2019 format */
|
|
u8x8_utf8_init(u8x8);
|
|
for(;;) {
|
|
e = u8x8->next_cb(u8x8, (uint8_t)*s);
|
|
if(e == 0x0ffff) break;
|
|
s++;
|
|
if(e != 0x0fffe) {
|
|
u8x8_Draw1x2Glyph(u8x8, x, y, e);
|
|
x += th;
|
|
cnt++;
|
|
}
|
|
}
|
|
return cnt;
|
|
}
|
|
|
|
uint8_t u8x8_Draw1x2String(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) {
|
|
u8x8->next_cb = u8x8_ascii_next;
|
|
return u8x8_draw_1x2_string(u8x8, x, y, s);
|
|
}
|
|
|
|
uint8_t u8x8_Draw1x2UTF8(u8x8_t* u8x8, uint8_t x, uint8_t y, const char* s) {
|
|
u8x8->next_cb = u8x8_utf8_next;
|
|
return u8x8_draw_1x2_string(u8x8, x, y, s);
|
|
}
|
|
|
|
uint8_t u8x8_GetUTF8Len(u8x8_t* u8x8, const char* s) {
|
|
uint16_t e;
|
|
uint8_t cnt = 0;
|
|
u8x8_utf8_init(u8x8);
|
|
for(;;) {
|
|
e = u8x8_utf8_next(u8x8, *s);
|
|
if(e == 0x0ffff) break;
|
|
s++;
|
|
if(e != 0x0fffe) cnt++;
|
|
}
|
|
return cnt;
|
|
}
|