mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-18 21:48:13 +00:00
132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "terminal.h"
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#include <stdarg.h>
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#include <stdint.h>
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#include <string.h>
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#include "display.h"
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#include TREZOR_BOARD
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#ifndef TREZOR_PRINT_DISABLE
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#define TERMINAL_COLS (DISPLAY_RESX / 6)
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#define TERMINAL_ROWS (DISPLAY_RESY / 8)
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static char terminal_fb[TERMINAL_ROWS][TERMINAL_COLS];
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static uint16_t terminal_fgcolor = COLOR_WHITE;
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static uint16_t terminal_bgcolor = COLOR_BLACK;
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// set colors for display_print function
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void term_set_color(uint16_t fgcolor, uint16_t bgcolor) {
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terminal_fgcolor = fgcolor;
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terminal_bgcolor = bgcolor;
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}
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// display text using bitmap font
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void term_print(const char *text, int textlen) {
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static uint8_t row = 0, col = 0;
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// determine text length if not provided
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if (textlen < 0) {
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textlen = strlen(text);
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}
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// print characters to internal buffer (terminal_fb)
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for (int i = 0; i < textlen; i++) {
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switch (text[i]) {
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case '\r':
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break;
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case '\n':
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row++;
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col = 0;
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break;
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default:
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terminal_fb[row][col] = text[i];
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col++;
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break;
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}
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if (col >= TERMINAL_COLS) {
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col = 0;
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row++;
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}
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if (row >= TERMINAL_ROWS) {
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for (int j = 0; j < TERMINAL_ROWS - 1; j++) {
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memcpy(terminal_fb[j], terminal_fb[j + 1], TERMINAL_COLS);
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}
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memset(terminal_fb[TERMINAL_ROWS - 1], 0, TERMINAL_COLS);
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row = TERMINAL_ROWS - 1;
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}
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}
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// render buffer to display
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display_set_window(0, 0, DISPLAY_RESX - 1, DISPLAY_RESY - 1);
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for (int i = 0; i < DISPLAY_RESX * DISPLAY_RESY; i++) {
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int x = (i % DISPLAY_RESX);
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int y = (i / DISPLAY_RESX);
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const int j = y % 8;
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y /= 8;
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const int k = x % 6;
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x /= 6;
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char c = 0;
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if (x < TERMINAL_COLS && y < TERMINAL_ROWS) {
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c = terminal_fb[y][x] & 0x7F;
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// char invert = terminal_fb[y][x] & 0x80;
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} else {
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c = ' ';
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}
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if (c < ' ') {
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c = ' ';
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}
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const uint8_t *g = Font_Bitmap + (5 * (c - ' '));
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if (k < 5 && (g[k] & (1 << j))) {
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PIXELDATA(terminal_fgcolor);
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} else {
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PIXELDATA(terminal_bgcolor);
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}
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}
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display_pixeldata_dirty();
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display_refresh();
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}
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#ifdef TREZOR_EMULATOR
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#define mini_vsnprintf vsnprintf
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#include <stdio.h>
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#else
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#include "mini_printf.h"
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#endif
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// variadic term_print
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void term_printf(const char *fmt, ...) {
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if (!strchr(fmt, '%')) {
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term_print(fmt, strlen(fmt));
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} else {
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va_list va;
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va_start(va, fmt);
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char buf[256] = {0};
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int len = mini_vsnprintf(buf, sizeof(buf), fmt, va);
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term_print(buf, len);
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va_end(va);
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}
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}
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#endif // TREZOR_PRINT_DISABLE
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