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Added font renderer and terminal emulator

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This commit is contained in:
Jozef Nagy 2025-05-15 00:55:59 +02:00
parent bc4ec556e2
commit dd4fda27bb
Signed by untrusted user who does not match committer: crz
GPG key ID: 459A4811CEAC7068
22 changed files with 1921 additions and 5151 deletions
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boot/common/ui/terminal.c Normal file
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/*********************************************************************************/
/* Module Name: terminal.c */
/* Project: AurixOS */
/* */
/* Copyright (c) 2024-2025 Jozef Nagy */
/* */
/* This source is subject to the MIT License. */
/* See License.txt in the root of this repository. */
/* All other rights reserved. */
/* */
/* 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. */
/*********************************************************************************/
#include <ui/ui.h>
#include <ui/terminal.h>
#include <axboot.h>
#include <print.h>
#include <stdarg.h>
#define HORIZONTAL_TAB_WIDTH 8
void terminal_print(struct ui_context *ctx, char *fmt, ...)
{
va_list args;
char buf[4096] = {0};
char *s = (char *)&buf;
va_start(args, fmt);
snprintf((char *)&buf, sizeof(buf), fmt, args);
va_end(args);
while (*s) {
switch (*s) {
case '\t': {
// horizontal tab - 4 spaces
int w, h;
ssfn_bbox(&(ctx->font), " ", &w, &h, NULL, NULL);
if (ctx->terminal.cx >= ctx->fb_modes[ctx->current_mode].width - (w * HORIZONTAL_TAB_WIDTH)) {
for (int i = 1; i <= HORIZONTAL_TAB_WIDTH; i++) {
if (ctx->terminal.cx >= ctx->fb_modes[ctx->current_mode].width - (w * i)) {
ctx->terminal.cx = ((HORIZONTAL_TAB_WIDTH * (w + 1)) - (w * i));
ctx->terminal.cy += h;
break;
}
}
} else {
ctx->terminal.cx += w * HORIZONTAL_TAB_WIDTH;
}
break;
}
case '\n': {
// newline
ctx->terminal.cx = 0;
ctx->terminal.cy += ctx->terminal.font_size;
break;
}
default: {
// printable character
const char str[2] = {*s, 0};
int w, h;
ssfn_bbox(&(ctx->font), (char *)&str, &w, &h, NULL, NULL);
if (ctx->terminal.cx + w >= ctx->fb_modes[ctx->current_mode].width) {
ctx->terminal.cx = 0;
ctx->terminal.cy += h;
}
font_write(ctx, (char *)&str, ctx->terminal.cx, ctx->terminal.cy);
ctx->terminal.cx += w;
break;
}
}
s++;
}
}
void terminal_setcur(struct ui_context *ui, uint32_t x, uint32_t y)
{
ui->terminal.cx = x;
ui->terminal.cy = y;
}