From 9f3fdb830f61cd8c8c1f1db9d03cba1c546c1a7e Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sun, 24 Jul 2022 15:07:57 +0200
Subject: user: change the directory structure to prepare for multiple binaries

---
 src/user/driver/ansiterm.c | 99 ----------------------------------------------
 1 file changed, 99 deletions(-)
 delete mode 100644 src/user/driver/ansiterm.c

(limited to 'src/user/driver/ansiterm.c')

diff --git a/src/user/driver/ansiterm.c b/src/user/driver/ansiterm.c
deleted file mode 100644
index 4b9f0d0..0000000
--- a/src/user/driver/ansiterm.c
+++ /dev/null
@@ -1,99 +0,0 @@
-#include <user/driver/driver.h>
-#include <shared/syscalls.h>
-#include <stdbool.h>
-
-struct vga_cell {
-	unsigned char c;
-	unsigned char style;
-} __attribute__((__packed__));
-static struct vga_cell vga[80 * 25];
-
-static handle_t vga_fd;
-
-static struct {int x, y;} cursor = {0};
-static bool dirty = false;
-static bool pendingFlush = false;
-
-static void flush(void) {
-	size_t off = 0;
-	/* we have to do multiple write() calls if we're behind a shitty passthrough fs
-	 * i don't like this either */
-	while (off < sizeof(vga))
-		off += _syscall_write(vga_fd, (void*)vga + off, sizeof(vga) - off, off);
-	dirty = false;
-	pendingFlush = false;
-}
-
-static void scroll(void) {
-	for (size_t i = 0; i < 80 * 24; i++)
-		vga[i] = vga[i + 80];
-	for (size_t i = 80 * 24; i < 80 * 25; i++)
-		vga[i].c = ' ';
-	cursor.y--;
-	pendingFlush = true;
-}
-
-static void in_char(char c) {
-	switch (c) {
-		case '\n':
-			cursor.x = 0;
-			cursor.y++;
-			pendingFlush = true;
-			break;
-		case '\b':
-			if (--cursor.x < 0) cursor.x = 0;
-			break;
-		default:
-			vga[cursor.y * 80 + cursor.x++].c = c;
-	}
-
-	if (cursor.x >= 80) {
-		cursor.x = 0;
-		cursor.y++;
-	}
-	while (cursor.y >= 25) scroll();
-	dirty = true;
-}
-
-void ansiterm_drv(void) {
-	vga_fd = _syscall_open("/kdev/vga", 9, 0);
-	_syscall_read(vga_fd, vga, sizeof vga, 0);
-
-	// find first empty line
-	for (cursor.y = 0; cursor.y < 25; cursor.y++) {
-		for (cursor.x = 0; cursor.x < 80; cursor.x++) {
-			char c = vga[cursor.y * 80 + cursor.x].c;
-			if (c != ' ' && c != '\0') break;
-		}
-		if (cursor.x == 80) break;
-	}
-	cursor.x = 0;
-
-	for (int i = 0; i < 80 * 25; i++)
-		vga[i].style = 0x70;
-	flush();
-
-	static char buf[512];
-	struct fs_wait_response res;
-	while (!_syscall_fs_wait(buf, sizeof buf, &res)) {
-		switch (res.op) {
-			case VFSOP_OPEN:
-				// TODO check path
-				_syscall_fs_respond(NULL, 0, 0);
-				break;
-
-			case VFSOP_WRITE:
-				for (size_t i = 0; i < res.len; i++)
-					in_char(buf[i]);
-				/* if (pendingFlush) */ flush();
-				_syscall_fs_respond(NULL, res.len, 0);
-				break;
-
-			default:
-				_syscall_fs_respond(NULL, -1, 0);
-				break;
-		}
-	}
-
-	_syscall_exit(1);
-}
-- 
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