1 use crate::{ 2 driver::{ 3 serial::serial8250::send_to_default_serial8250_port, 4 tty::{tty_port::tty_port, virtual_terminal::virtual_console::CURRENT_VCNUM}, 5 video::video_refresh_manager, 6 }, 7 libs::{ 8 lib_ui::font::FONT_8x16, 9 rwlock::RwLock, 10 spinlock::{SpinLock, SpinLockGuard}, 11 }, 12 }; 13 use alloc::{boxed::Box, collections::LinkedList, string::ToString}; 14 use alloc::{sync::Arc, vec::Vec}; 15 use core::{ 16 fmt::Debug, 17 intrinsics::unlikely, 18 ops::{Add, AddAssign, Sub}, 19 ptr::copy_nonoverlapping, 20 sync::atomic::{AtomicBool, AtomicI32, AtomicU32, Ordering}, 21 }; 22 use log::{debug, info}; 23 use system_error::SystemError; 24 25 use super::{ 26 screen_manager::{ 27 scm_register, ScmBuffer, ScmBufferInfo, ScmFramworkType, ScmUiFramework, 28 ScmUiFrameworkMetadata, 29 }, 30 textui_no_alloc::no_init_textui_putchar_window, 31 }; 32 33 /// 声明全局的TEXTUI_FRAMEWORK 34 static mut __TEXTUI_FRAMEWORK: Option<Arc<TextUiFramework>> = None; 35 36 /// 每个字符的宽度和高度（像素） 37 pub const TEXTUI_CHAR_WIDTH: u32 = 8; 38 39 pub const TEXTUI_CHAR_HEIGHT: u32 = 16; 40 41 pub static mut TEXTUI_IS_INIT: bool = false; 42 43 static ENABLE_PUT_TO_WINDOW: AtomicBool = AtomicBool::new(false); 44 45 /// 启用将文本输出到窗口的功能。 46 pub fn textui_enable_put_to_window() { 47 ENABLE_PUT_TO_WINDOW.store(true, Ordering::SeqCst); 48 } 49 50 /// 禁用将文本输出到窗口的功能。 51 pub fn textui_disable_put_to_window() { 52 ENABLE_PUT_TO_WINDOW.store(false, Ordering::SeqCst); 53 } 54 55 /// 检查是否启用了将文本输出到窗口的功能。 56 /// 57 /// # 返回 58 /// 如果启用了将文本输出到窗口的功能，则返回 `true`，否则返回 `false`。 59 pub fn textui_is_enable_put_to_window() -> bool { 60 ENABLE_PUT_TO_WINDOW.load(Ordering::SeqCst) 61 } 62 63 /// 获取TEXTUI_FRAMEWORK的可变实例 64 pub fn textui_framework() -> Arc<TextUiFramework> { 65 unsafe { 66 return __TEXTUI_FRAMEWORK 67 .as_ref() 68 .expect("Textui framework has not been initialized yet!") 69 .clone(); 70 } 71 } 72 73 /// 初始化TEXTUI_FRAMEWORK 74 fn textui_framwork_init() { 75 if unsafe { __TEXTUI_FRAMEWORK.is_none() } { 76 info!("textuiframework init"); 77 let metadata = ScmUiFrameworkMetadata::new("TextUI".to_string(), ScmFramworkType::Text); 78 debug!("textui metadata: {:?}", metadata); 79 // 为textui框架生成第一个窗口 80 let vlines_num = (metadata.buf_info().height() / TEXTUI_CHAR_HEIGHT) as usize; 81 82 let chars_num = (metadata.buf_info().width() / TEXTUI_CHAR_WIDTH) as usize; 83 84 let initial_window = TextuiWindow::new( 85 WindowFlag::TEXTUI_CHROMATIC, 86 vlines_num as i32, 87 chars_num as i32, 88 ); 89 90 let current_window: Arc<SpinLock<TextuiWindow>> = Arc::new(SpinLock::new(initial_window)); 91 92 let default_window = current_window.clone(); 93 94 // 生成窗口链表，并把上面窗口添加进textui框架的窗口链表中 95 let window_list: Arc<SpinLock<LinkedList<Arc<SpinLock<TextuiWindow>>>>> = 96 Arc::new(SpinLock::new(LinkedList::new())); 97 window_list.lock().push_back(current_window.clone()); 98 99 unsafe { 100 __TEXTUI_FRAMEWORK = Some(Arc::new(TextUiFramework::new( 101 metadata, 102 window_list, 103 current_window, 104 default_window, 105 ))) 106 }; 107 108 scm_register(textui_framework()).expect("register textui framework failed"); 109 debug!("textui framework init success"); 110 111 send_to_default_serial8250_port("\ntext ui initialized\n\0".as_bytes()); 112 unsafe { TEXTUI_IS_INIT = true }; 113 } else { 114 panic!("Try to init TEXTUI_FRAMEWORK twice!"); 115 } 116 } 117 // window标志位 118 bitflags! { 119 pub struct WindowFlag: u8 { 120 // 采用彩色字符 121 const TEXTUI_CHROMATIC = 1 << 0; 122 } 123 } 124 125 /** 126 * @brief 黑白字符对象 127 * 128 */ 129 #[derive(Clone, Debug)] 130 struct TextuiCharNormal { 131 _data: u8, 132 } 133 134 #[derive(Debug, Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Hash, Default)] 135 pub struct LineId(i32); 136 impl LineId { 137 pub fn new(num: i32) -> Self { 138 LineId(num) 139 } 140 141 pub fn check(&self, max: i32) -> bool { 142 self.0 < max && self.0 >= 0 143 } 144 145 pub fn data(&self) -> i32 { 146 self.0 147 } 148 } 149 impl Add<i32> for LineId { 150 type Output = LineId; 151 fn add(self, rhs: i32) -> Self::Output { 152 LineId::new(self.0 + rhs) 153 } 154 } 155 impl Sub<i32> for LineId { 156 type Output = LineId; 157 158 fn sub(self, rhs: i32) -> Self::Output { 159 LineId::new(self.0 - rhs) 160 } 161 } 162 impl From<LineId> for i32 { 163 fn from(value: LineId) -> Self { 164 value.0 165 } 166 } 167 impl From<LineId> for u32 { 168 fn from(value: LineId) -> Self { 169 value.0 as u32 170 } 171 } 172 impl From<LineId> for usize { 173 fn from(value: LineId) -> Self { 174 value.0 as usize 175 } 176 } 177 impl Sub<LineId> for LineId { 178 type Output = LineId; 179 180 fn sub(mut self, rhs: LineId) -> Self::Output { 181 self.0 -= rhs.0; 182 return self; 183 } 184 } 185 impl AddAssign<LineId> for LineId { 186 fn add_assign(&mut self, rhs: LineId) { 187 self.0 += rhs.0; 188 } 189 } 190 #[derive(Debug, Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Hash, Default)] 191 pub struct LineIndex(i32); 192 impl LineIndex { 193 pub fn new(num: i32) -> Self { 194 LineIndex(num) 195 } 196 pub fn check(&self, chars_per_line: i32) -> bool { 197 self.0 < chars_per_line && self.0 >= 0 198 } 199 } 200 impl Add<LineIndex> for LineIndex { 201 type Output = LineIndex; 202 203 fn add(self, rhs: LineIndex) -> Self::Output { 204 LineIndex::new(self.0 + rhs.0) 205 } 206 } 207 impl Add<i32> for LineIndex { 208 // type Output = Self; 209 type Output = LineIndex; 210 211 fn add(self, rhs: i32) -> Self::Output { 212 LineIndex::new(self.0 + rhs) 213 } 214 } 215 impl Sub<i32> for LineIndex { 216 type Output = LineIndex; 217 218 fn sub(self, rhs: i32) -> Self::Output { 219 LineIndex::new(self.0 - rhs) 220 } 221 } 222 223 impl From<LineIndex> for i32 { 224 fn from(val: LineIndex) -> Self { 225 val.0 226 } 227 } 228 impl From<LineIndex> for u32 { 229 fn from(value: LineIndex) -> Self { 230 value.0 as u32 231 } 232 } 233 impl From<LineIndex> for usize { 234 fn from(value: LineIndex) -> Self { 235 value.0 as usize 236 } 237 } 238 #[derive(Copy, Clone, Debug)] 239 pub struct FontColor(u32); 240 #[allow(dead_code)] 241 impl FontColor { 242 pub const BLUE: FontColor = FontColor::new(0, 0, 0xff); 243 pub const RED: FontColor = FontColor::new(0xff, 0, 0); 244 pub const GREEN: FontColor = FontColor::new(0, 0xff, 0); 245 pub const WHITE: FontColor = FontColor::new(0xff, 0xff, 0xff); 246 pub const BLACK: FontColor = FontColor::new(0, 0, 0); 247 pub const YELLOW: FontColor = FontColor::new(0xff, 0xff, 0); 248 pub const ORANGE: FontColor = FontColor::new(0xff, 0x80, 0); 249 pub const INDIGO: FontColor = FontColor::new(0x00, 0xff, 0xff); 250 pub const PURPLE: FontColor = FontColor::new(0x80, 0x00, 0xff); 251 252 pub const fn new(r: u8, g: u8, b: u8) -> Self { 253 let val = ((r as u32) << 16) | ((g as u32) << 8) | (b as u32); 254 return FontColor(val & 0x00ffffff); 255 } 256 } 257 258 impl From<u32> for FontColor { 259 fn from(value: u32) -> Self { 260 return Self(value & 0x00ffffff); 261 } 262 } 263 impl From<FontColor> for usize { 264 fn from(value: FontColor) -> Self { 265 value.0 as usize 266 } 267 } 268 impl From<FontColor> for u32 { 269 fn from(value: FontColor) -> Self { 270 value.0 271 } 272 } 273 impl From<FontColor> for u16 { 274 fn from(value: FontColor) -> Self { 275 value.0 as u16 276 } 277 } 278 impl From<FontColor> for u64 { 279 fn from(value: FontColor) -> Self { 280 value.0 as u64 281 } 282 } 283 284 /// 彩色字符对象 285 286 #[derive(Clone, Debug, Copy)] 287 pub struct TextuiCharChromatic { 288 c: Option<char>, 289 290 // 前景色 291 frcolor: FontColor, // rgb 292 293 // 背景色 294 bkcolor: FontColor, // rgb 295 } 296 297 #[derive(Debug)] 298 pub struct TextuiBuf<'a> { 299 buf: Option<&'a mut [u8]>, 300 301 guard: Option<SpinLockGuard<'a, Box<[u8]>>>, 302 303 bit_depth: u32, 304 } 305 306 impl TextuiBuf<'_> { 307 pub fn new(buf: &mut ScmBufferInfo) -> TextuiBuf { 308 let len = buf.buf_size() / 4; 309 let depth = video_refresh_manager().device_buffer().bit_depth(); 310 match &buf.buf { 311 ScmBuffer::DeviceBuffer(vaddr) => { 312 return TextuiBuf { 313 buf: Some(unsafe { 314 core::slice::from_raw_parts_mut(vaddr.data() as *mut u8, len) 315 }), 316 guard: None, 317 bit_depth: depth, 318 }; 319 } 320 321 ScmBuffer::DoubleBuffer(double_buffer) => { 322 let guard: SpinLockGuard<'_, Box<[u8]>> = double_buffer.lock(); 323 324 return TextuiBuf { 325 buf: None, 326 guard: Some(guard), 327 bit_depth: depth, 328 }; 329 } 330 } 331 } 332 333 pub fn buf_mut(&mut self) -> &mut [u8] { 334 if let Some(buf) = &mut self.buf { 335 return buf; 336 } else { 337 return self.guard.as_mut().unwrap().as_mut(); 338 } 339 } 340 341 pub fn put_color_in_pixel(&mut self, color: u32, index: usize) { 342 let index = index as isize; 343 match self.bit_depth { 344 32 => { 345 let buf = self.buf_mut().as_mut_ptr() as *mut u32; 346 unsafe { 347 *buf.offset(index) = color; 348 } 349 } 350 24 => { 351 let buf = self.buf_mut().as_mut_ptr(); 352 unsafe { 353 copy_nonoverlapping(&color as *const u32 as *const u8, buf.offset(index * 3), 3) 354 }; 355 } 356 16 => { 357 let buf = self.buf_mut().as_mut_ptr(); 358 unsafe { 359 copy_nonoverlapping( 360 &color as *const u32 as *const u8, 361 buf.offset(index * 2), 362 2, 363 ); 364 }; 365 } 366 _ => { 367 panic!("bidepth unsupported!") 368 } 369 } 370 } 371 pub fn get_index_of_next_line(now_index: usize) -> usize { 372 textui_framework().metadata.read().buf_info().width() as usize + now_index 373 } 374 pub fn get_index_by_x_y(x: usize, y: usize) -> usize { 375 textui_framework().metadata.read().buf_info().width() as usize * y + x 376 } 377 378 pub fn get_start_index_by_lineid_lineindex(lineid: LineId, lineindex: LineIndex) -> usize { 379 // x 左上角列像素点位置 380 // y 左上角行像素点位置 381 let index_x: u32 = lineindex.into(); 382 let x: u32 = index_x * TEXTUI_CHAR_WIDTH; 383 384 let id_y: u32 = lineid.into(); 385 let y: u32 = id_y * TEXTUI_CHAR_HEIGHT; 386 387 TextuiBuf::get_index_by_x_y(x as usize, y as usize) 388 } 389 } 390 391 #[derive(Debug, Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Hash)] 392 pub struct Font([u8; 16]); 393 impl Font { 394 #[inline] 395 pub fn get_font(character: char) -> Font { 396 let x = FONT_8x16.char_map(character); 397 398 let mut data = [0u8; 16]; 399 data.copy_from_slice(x); 400 return Font(data); 401 } 402 pub fn is_frcolor(&self, height: usize, width: usize) -> bool { 403 let w = self.0[height]; 404 let testbit = 1 << (8 - width); 405 w & testbit != 0 406 } 407 } 408 409 impl TextuiCharChromatic { 410 pub fn new(c: Option<char>, frcolor: FontColor, bkcolor: FontColor) -> Self { 411 TextuiCharChromatic { 412 c, 413 frcolor, 414 bkcolor, 415 } 416 } 417 418 /// 将该字符对象输出到缓冲区 419 /// ## 参数 420 /// -line_id 要放入的真实行号 421 /// -index 要放入的真实列号 422 pub fn textui_refresh_character( 423 &self, 424 lineid: LineId, 425 lineindex: LineIndex, 426 ) -> Result<i32, SystemError> { 427 // 找到要渲染的字符的像素点数据 428 429 let font: Font = Font::get_font(self.c.unwrap_or(' ')); 430 431 let mut count = TextuiBuf::get_start_index_by_lineid_lineindex(lineid, lineindex); 432 433 let mut _binding = textui_framework().metadata.read().buf_info(); 434 435 let mut buf = TextuiBuf::new(&mut _binding); 436 437 // 在缓冲区画出一个字体，每个字体有TEXTUI_CHAR_HEIGHT行，TEXTUI_CHAR_WIDTH列个像素点 438 for i in 0..TEXTUI_CHAR_HEIGHT { 439 let start = count; 440 for j in 0..TEXTUI_CHAR_WIDTH { 441 if font.is_frcolor(i as usize, j as usize) { 442 // 字，显示前景色 443 buf.put_color_in_pixel(self.frcolor.into(), count); 444 } else { 445 // 背景色 446 buf.put_color_in_pixel(self.bkcolor.into(), count); 447 } 448 count += 1; 449 } 450 count = TextuiBuf::get_index_of_next_line(start); 451 } 452 453 return Ok(0); 454 } 455 456 pub fn no_init_textui_render_chromatic(&self, lineid: LineId, lineindex: LineIndex) { 457 // 找到要渲染的字符的像素点数据 458 let font = Font::get_font(self.c.unwrap_or(' ')); 459 460 // x 左上角列像素点位置 461 // y 左上角行像素点位置 462 let index_x: u32 = lineindex.into(); 463 let x: u32 = index_x * TEXTUI_CHAR_WIDTH; 464 465 let id_y: u32 = lineid.into(); 466 let y: u32 = id_y * TEXTUI_CHAR_HEIGHT; 467 let buf_depth = video_refresh_manager().device_buffer().bit_depth(); 468 let buf_width = video_refresh_manager().device_buffer().width(); 469 let byte_num_of_depth = (buf_depth / 8) as usize; 470 471 // 找到输入缓冲区的起始地址位置 472 let buf_start = 473 if let ScmBuffer::DeviceBuffer(vaddr) = video_refresh_manager().device_buffer().buf { 474 vaddr 475 } else { 476 panic!("device buffer is not init"); 477 }; 478 479 let mut testbit: u32; // 用来测试特定行的某列是背景还是字体本身 480 481 // 在缓冲区画出一个字体，每个字体有TEXTUI_CHAR_HEIGHT行，TEXTUI_CHAR_WIDTH列个像素点 482 for i in 0..TEXTUI_CHAR_HEIGHT { 483 // 计算出帧缓冲区每一行打印的起始位置的地址（起始位置+（y+i）*缓冲区的宽度+x） 484 485 let mut addr: *mut u8 = (buf_start 486 + buf_width as usize * byte_num_of_depth * (y as usize + i as usize) 487 + byte_num_of_depth * x as usize) 488 .data() as *mut u8; 489 490 testbit = 1 << (TEXTUI_CHAR_WIDTH + 1); 491 492 for _j in 0..TEXTUI_CHAR_WIDTH { 493 //该循环是渲染一行像素 494 //从左往右逐个测试相应位 495 testbit >>= 1; 496 if (font.0[i as usize] & testbit as u8) != 0 { 497 let color: u32 = self.frcolor.into(); 498 unsafe { 499 copy_nonoverlapping( 500 &color as *const u32 as *const u8, 501 addr, 502 byte_num_of_depth, 503 ) 504 }; // 字，显示前景色 505 } else { 506 let color: u32 = self.bkcolor.into(); 507 unsafe { 508 copy_nonoverlapping( 509 &color as *const u32 as *const u8, 510 addr, 511 byte_num_of_depth, 512 ) 513 }; 514 } 515 unsafe { 516 addr = addr.add(byte_num_of_depth); 517 } 518 } 519 } 520 } 521 } 522 523 /// 单色显示的虚拟行结构体 524 525 #[derive(Clone, Debug, Default)] 526 pub struct TextuiVlineNormal { 527 _characters: Vec<TextuiCharNormal>, // 字符对象数组 528 _index: i16, // 当前操作的位置 529 } 530 /// 彩色显示的虚拟行结构体 531 532 #[derive(Clone, Debug, Default)] 533 pub struct TextuiVlineChromatic { 534 chars: Vec<TextuiCharChromatic>, // 字符对象数组 535 index: LineIndex, // 当前操作的位置 536 } 537 impl TextuiVlineChromatic { 538 pub fn new(char_num: usize) -> Self { 539 let mut r = TextuiVlineChromatic { 540 chars: Vec::with_capacity(char_num), 541 index: LineIndex::new(0), 542 }; 543 544 for _ in 0..char_num { 545 r.chars.push(TextuiCharChromatic::new( 546 None, 547 FontColor::BLACK, 548 FontColor::BLACK, 549 )); 550 } 551 552 return r; 553 } 554 } 555 556 #[derive(Clone, Debug)] 557 pub enum TextuiVline { 558 Chromatic(TextuiVlineChromatic), 559 _Normal(TextuiVlineNormal), 560 } 561 562 #[derive(Debug, Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Hash)] 563 pub struct WindowId(u32); 564 565 impl WindowId { 566 pub fn new() -> Self { 567 static MAX_ID: AtomicU32 = AtomicU32::new(0); 568 return WindowId(MAX_ID.fetch_add(1, Ordering::SeqCst)); 569 } 570 } 571 #[allow(dead_code)] 572 #[derive(Clone, Debug)] 573 pub struct TextuiWindow { 574 // 虚拟行是个循环表，头和尾相接 575 id: WindowId, 576 // 虚拟行总数 577 vline_sum: i32, 578 // 当前已经使用了的虚拟行总数（即在已经输入到缓冲区（之后显示在屏幕上）的虚拟行数量） 579 vlines_used: i32, 580 // 位于最顶上的那一个虚拟行的行号 581 top_vline: LineId, 582 // 储存虚拟行的数组 583 vlines: Vec<TextuiVline>, 584 // 正在操作的vline 585 vline_operating: LineId, 586 // 每行最大容纳的字符数 587 chars_per_line: i32, 588 // 窗口flag 589 flags: WindowFlag, 590 } 591 592 impl TextuiWindow { 593 /// 使用参数初始化window对象 594 /// ## 参数 595 /// 596 /// -flags 标志位 597 /// -vlines_num 虚拟行的总数 598 /// -chars_num 每行最大的字符数 599 600 pub fn new(flags: WindowFlag, vlines_num: i32, chars_num: i32) -> Self { 601 let mut initial_vlines = Vec::new(); 602 603 for _ in 0..vlines_num { 604 let vline = TextuiVlineChromatic::new(chars_num as usize); 605 606 initial_vlines.push(TextuiVline::Chromatic(vline)); 607 } 608 TextuiWindow { 609 id: WindowId::new(), 610 flags, 611 vline_sum: vlines_num, 612 vlines_used: 1, 613 top_vline: LineId::new(0), 614 vlines: initial_vlines, 615 vline_operating: LineId::new(0), 616 chars_per_line: chars_num, 617 } 618 } 619 620 /// 刷新某个窗口的缓冲区的某个虚拟行的连续n个字符对象 621 /// ## 参数 622 /// - window 窗口结构体 623 /// - vline_id 要刷新的虚拟行号 624 /// - start 起始字符号 625 /// - count 要刷新的字符数量 626 fn textui_refresh_characters( 627 &mut self, 628 vline_id: LineId, 629 start: LineIndex, 630 count: i32, 631 ) -> Result<(), SystemError> { 632 let actual_line_sum = textui_framework().actual_line.load(Ordering::SeqCst); 633 634 // 判断虚拟行参数是否合法 635 if unlikely( 636 !vline_id.check(self.vline_sum) 637 || (<LineIndex as Into<i32>>::into(start) + count) > self.chars_per_line, 638 ) { 639 return Err(SystemError::EINVAL); 640 } 641 // 计算虚拟行对应的真实行（即要渲染的行） 642 let mut actual_line_id = vline_id - self.top_vline; //为正说明虚拟行不在真实行显示的区域上面 643 644 if <LineId as Into<i32>>::into(actual_line_id) < 0 { 645 //真实行数小于虚拟行数，则需要加上真实行数的位置，以便正确计算真实行 646 actual_line_id = actual_line_id + actual_line_sum; 647 } 648 649 // 将此窗口的某个虚拟行的连续n个字符对象往缓存区写入 650 if self.flags.contains(WindowFlag::TEXTUI_CHROMATIC) { 651 let vline = &mut self.vlines[<LineId as Into<usize>>::into(vline_id)]; 652 let mut i = 0; 653 let mut index = start; 654 655 while i < count { 656 if let TextuiVline::Chromatic(vline) = vline { 657 vline.chars[<LineIndex as Into<usize>>::into(index)] 658 .textui_refresh_character(actual_line_id, index)?; 659 660 index = index + 1; 661 } 662 i += 1; 663 } 664 } 665 666 return Ok(()); 667 } 668 669 /// 重新渲染某个窗口的某个虚拟行 670 /// ## 参数 671 672 /// - window 窗口结构体 673 /// - vline_id 虚拟行号 674 675 fn textui_refresh_vline(&mut self, vline_id: LineId) -> Result<(), SystemError> { 676 if self.flags.contains(WindowFlag::TEXTUI_CHROMATIC) { 677 return self.textui_refresh_characters( 678 vline_id, 679 LineIndex::new(0), 680 self.chars_per_line, 681 ); 682 } else { 683 //todo支持纯文本字符() 684 todo!(); 685 } 686 } 687 688 // 刷新某个窗口的start 到start + count行（即将这些行输入到缓冲区） 689 fn textui_refresh_vlines(&mut self, start: LineId, count: i32) -> Result<i32, SystemError> { 690 let mut refresh_count = count; 691 for i in <LineId as Into<i32>>::into(start) 692 ..(self.vline_sum).min(<LineId as Into<i32>>::into(start) + count) 693 { 694 self.textui_refresh_vline(LineId::new(i))?; 695 refresh_count -= 1; 696 } 697 //因为虚拟行是循环表 698 let mut refresh_start = 0; 699 while refresh_count > 0 { 700 self.textui_refresh_vline(LineId::new(refresh_start))?; 701 refresh_start += 1; 702 refresh_count -= 1; 703 } 704 return Ok(0); 705 } 706 707 /// 往某个窗口的缓冲区的某个虚拟行插入换行 708 /// ## 参数 709 /// - window 窗口结构体 710 /// - vline_id 虚拟行号 711 fn textui_new_line(&mut self) -> Result<i32, SystemError> { 712 // todo: 支持在两个虚拟行之间插入一个新行 713 let actual_line_sum = textui_framework().actual_line.load(Ordering::SeqCst); 714 self.vline_operating = self.vline_operating + 1; 715 //如果已经到了最大行数，则重新从0开始 716 if !self.vline_operating.check(self.vline_sum) { 717 self.vline_operating = LineId::new(0); 718 } 719 720 if let TextuiVline::Chromatic(vline) = 721 &mut (self.vlines[<LineId as Into<usize>>::into(self.vline_operating)]) 722 { 723 for i in 0..self.chars_per_line { 724 if let Some(v_char) = vline.chars.get_mut(i as usize) { 725 v_char.c = None; 726 v_char.frcolor = FontColor::BLACK; 727 v_char.bkcolor = FontColor::BLACK; 728 } 729 } 730 vline.index = LineIndex::new(0); 731 } 732 // 当已经使用的虚拟行总数等于真实行总数时，说明窗口中已经显示的文本行数已经达到了窗口的最大容量。这时，如果继续在窗口中添加新的文本，就会导致文本溢出窗口而无法显示。因此，需要往下滚动屏幕来显示更多的文本。 733 734 if self.vlines_used == actual_line_sum { 735 self.top_vline = self.top_vline + 1; 736 737 if !self.top_vline.check(self.vline_sum) { 738 self.top_vline = LineId::new(0); 739 } 740 741 // 刷新所有行 742 self.textui_refresh_vlines(self.top_vline, actual_line_sum)?; 743 } else { 744 //换行说明上一行已经在缓冲区中，所以已经使用的虚拟行总数+1 745 self.vlines_used += 1; 746 } 747 748 return Ok(0); 749 } 750 751 /// 真正向窗口的缓冲区上输入字符的函数(位置为window.vline_operating，window.vline_operating.index) 752 /// ## 参数 753 /// - window 754 /// - character 755 fn true_textui_putchar_window( 756 &mut self, 757 character: char, 758 frcolor: FontColor, 759 bkcolor: FontColor, 760 ) -> Result<(), SystemError> { 761 // 启用彩色字符 762 if self.flags.contains(WindowFlag::TEXTUI_CHROMATIC) { 763 let mut line_index = LineIndex::new(0); //操作的列号 764 if let TextuiVline::Chromatic(vline) = 765 &mut (self.vlines[<LineId as Into<usize>>::into(self.vline_operating)]) 766 { 767 let index = <LineIndex as Into<usize>>::into(vline.index); 768 769 if let Some(v_char) = vline.chars.get_mut(index) { 770 v_char.c = Some(character); 771 v_char.frcolor = frcolor; 772 v_char.bkcolor = bkcolor; 773 } 774 line_index = vline.index; 775 vline.index = vline.index + 1; 776 } 777 778 self.textui_refresh_characters(self.vline_operating, line_index, 1)?; 779 780 // 加入光标后，因为会识别光标，所以需超过该行最大字符数才能创建新行 781 if !line_index.check(self.chars_per_line - 1) { 782 self.textui_new_line()?; 783 } 784 } else { 785 // todo: 支持纯文本字符 786 todo!(); 787 } 788 return Ok(()); 789 } 790 /// 根据输入的一个字符在窗口上输出 791 /// ## 参数 792 793 /// - window 窗口 794 /// - character 字符 795 /// - FRcolor 前景色（RGB） 796 /// - BKcolor 背景色（RGB） 797 798 fn textui_putchar_window( 799 &mut self, 800 character: char, 801 frcolor: FontColor, 802 bkcolor: FontColor, 803 is_enable_window: bool, 804 ) -> Result<(), SystemError> { 805 let actual_line_sum = textui_framework().actual_line.load(Ordering::SeqCst); 806 807 //字符'\0'代表ASCII码表中的空字符,表示字符串的结尾 808 if unlikely(character == '\0') { 809 return Ok(()); 810 } 811 812 if unlikely(character == '\r') { 813 return Ok(()); 814 } 815 816 // 暂不支持纯文本窗口 817 if !self.flags.contains(WindowFlag::TEXTUI_CHROMATIC) { 818 return Ok(()); 819 } 820 send_to_default_serial8250_port(&[character as u8]); 821 822 //进行换行操作 823 if character == '\n' { 824 // 换行时还需要输出\r 825 send_to_default_serial8250_port(b"\r"); 826 if is_enable_window { 827 self.textui_new_line()?; 828 } 829 return Ok(()); 830 } 831 // 输出制表符 832 else if character == '\t' { 833 if is_enable_window { 834 if let TextuiVline::Chromatic(vline) = 835 &self.vlines[<LineId as Into<usize>>::into(self.vline_operating)] 836 { 837 //打印的空格数（注意将每行分成一个个表格，每个表格为8个字符） 838 let mut space_to_print = 8 - <LineIndex as Into<usize>>::into(vline.index) % 8; 839 while space_to_print > 0 { 840 self.true_textui_putchar_window(' ', frcolor, bkcolor)?; 841 space_to_print -= 1; 842 } 843 } 844 } 845 } 846 // 字符 '\x08' 代表 ASCII 码中的退格字符。它在输出中的作用是将光标向左移动一个位置，并在该位置上输出后续的字符，从而实现字符的删除或替换。 847 else if character == '\x08' { 848 if is_enable_window { 849 let mut tmp = LineIndex(0); 850 if let TextuiVline::Chromatic(vline) = 851 &mut self.vlines[<LineId as Into<usize>>::into(self.vline_operating)] 852 { 853 vline.index = vline.index - 1; 854 tmp = vline.index; 855 } 856 if <LineIndex as Into<i32>>::into(tmp) >= 0 { 857 if let TextuiVline::Chromatic(vline) = 858 &mut self.vlines[<LineId as Into<usize>>::into(self.vline_operating)] 859 { 860 if let Some(v_char) = 861 vline.chars.get_mut(<LineIndex as Into<usize>>::into(tmp)) 862 { 863 v_char.c = Some(' '); 864 865 v_char.bkcolor = bkcolor; 866 } 867 } 868 return self.textui_refresh_characters(self.vline_operating, tmp, 1); 869 } 870 // 需要向上缩一行 871 if <LineIndex as Into<i32>>::into(tmp) < 0 { 872 // 当前行为空,需要重新刷新 873 if let TextuiVline::Chromatic(vline) = 874 &mut self.vlines[<LineId as Into<usize>>::into(self.vline_operating)] 875 { 876 vline.index = LineIndex::new(0); 877 for i in 0..self.chars_per_line { 878 if let Some(v_char) = vline.chars.get_mut(i as usize) { 879 v_char.c = None; 880 v_char.frcolor = FontColor::BLACK; 881 v_char.bkcolor = FontColor::BLACK; 882 } 883 } 884 } 885 // 上缩一行 886 self.vline_operating = self.vline_operating - 1; 887 if self.vline_operating.data() < 0 { 888 self.vline_operating = LineId(self.vline_sum - 1); 889 } 890 891 // 考虑是否向上滚动（在top_vline上退格） 892 if self.vlines_used > actual_line_sum { 893 self.top_vline = self.top_vline - 1; 894 if <LineId as Into<i32>>::into(self.top_vline) < 0 { 895 self.top_vline = LineId(self.vline_sum - 1); 896 } 897 } 898 //因为上缩一行所以显示在屏幕中的虚拟行少一 899 self.vlines_used -= 1; 900 self.textui_refresh_vlines(self.top_vline, actual_line_sum)?; 901 } 902 } 903 } else if is_enable_window { 904 if let TextuiVline::Chromatic(vline) = 905 &self.vlines[<LineId as Into<usize>>::into(self.vline_operating)] 906 { 907 if !vline.index.check(self.chars_per_line) { 908 self.textui_new_line()?; 909 } 910 911 return self.true_textui_putchar_window(character, frcolor, bkcolor); 912 } 913 } 914 915 return Ok(()); 916 } 917 } 918 impl Default for TextuiWindow { 919 fn default() -> Self { 920 TextuiWindow { 921 id: WindowId(0), 922 flags: WindowFlag::TEXTUI_CHROMATIC, 923 vline_sum: 0, 924 vlines_used: 1, 925 top_vline: LineId::new(0), 926 vlines: Vec::new(), 927 vline_operating: LineId::new(0), 928 chars_per_line: 0, 929 } 930 } 931 } 932 #[allow(dead_code)] 933 #[derive(Debug)] 934 pub struct TextUiFramework { 935 metadata: RwLock<ScmUiFrameworkMetadata>, 936 window_list: Arc<SpinLock<LinkedList<Arc<SpinLock<TextuiWindow>>>>>, 937 actual_line: AtomicI32, // 真实行的数量（textui的帧缓冲区能容纳的内容的行数） 938 current_window: Arc<SpinLock<TextuiWindow>>, // 当前的主窗口 939 default_window: Arc<SpinLock<TextuiWindow>>, // 默认print到的窗口 940 } 941 942 impl TextUiFramework { 943 pub fn new( 944 metadata: ScmUiFrameworkMetadata, 945 window_list: Arc<SpinLock<LinkedList<Arc<SpinLock<TextuiWindow>>>>>, 946 current_window: Arc<SpinLock<TextuiWindow>>, 947 default_window: Arc<SpinLock<TextuiWindow>>, 948 ) -> Self { 949 let actual_line = 950 AtomicI32::new((metadata.buf_info().height() / TEXTUI_CHAR_HEIGHT) as i32); 951 let inner = TextUiFramework { 952 metadata: RwLock::new(metadata), 953 window_list, 954 actual_line, 955 current_window, 956 default_window, 957 }; 958 return inner; 959 } 960 } 961 962 impl ScmUiFramework for TextUiFramework { 963 // 安装ui框架的回调函数 964 fn install(&self) -> Result<i32, SystemError> { 965 send_to_default_serial8250_port("\ntextui_install_handler\n\0".as_bytes()); 966 return Ok(0); 967 } 968 // 卸载ui框架的回调函数 969 fn uninstall(&self) -> Result<i32, SystemError> { 970 return Ok(0); 971 } 972 // 启用ui框架的回调函数 973 fn enable(&self) -> Result<i32, SystemError> { 974 textui_enable_put_to_window(); 975 return Ok(0); 976 } 977 // 禁用ui框架的回调函数 978 fn disable(&self) -> Result<i32, SystemError> { 979 textui_disable_put_to_window(); 980 981 return Ok(0); 982 } 983 // 改变ui框架的帧缓冲区的回调函数 984 fn change(&self, buf_info: ScmBufferInfo) -> Result<i32, SystemError> { 985 let old_buf = textui_framework().metadata.read().buf_info(); 986 987 textui_framework().metadata.write().set_buf_info(buf_info); 988 989 let mut new_buf = textui_framework().metadata.read().buf_info(); 990 991 new_buf.copy_from_nonoverlapping(&old_buf); 992 debug!("textui change buf_info: old: {:?}", old_buf); 993 debug!("textui change buf_info: new: {:?}", new_buf); 994 995 return Ok(0); 996 } 997 /// 获取ScmUiFramework的元数据 998 /// ## 返回值 999 /// 1000 /// -成功：Ok(ScmUiFramework的元数据) 1001 /// -失败：Err(错误码) 1002 fn metadata(&self) -> Result<ScmUiFrameworkMetadata, SystemError> { 1003 let metadata = self.metadata.read().clone(); 1004 1005 return Ok(metadata); 1006 } 1007 } 1008 1009 /// Mapping from characters to glyph indices. 1010 pub trait GlyphMapping: Sync { 1011 /// Maps a character to a glyph index. 1012 /// 1013 /// If `c` isn't included in the font the index of a suitable replacement glyph is returned. 1014 fn index(&self, c: char) -> usize; 1015 } 1016 1017 impl<F> GlyphMapping for F 1018 where 1019 F: Sync + Fn(char) -> usize, 1020 { 1021 fn index(&self, c: char) -> usize { 1022 self(c) 1023 } 1024 } 1025 1026 /// 在默认窗口上输出一个字符 1027 /// ## 参数 1028 /// - character 字符 1029 /// - FRcolor 前景色（RGB） 1030 /// - BKcolor 背景色（RGB） 1031 1032 #[no_mangle] 1033 pub extern "C" fn rs_textui_putchar(character: u8, fr_color: u32, bk_color: u32) -> i32 { 1034 let current_vcnum = CURRENT_VCNUM.load(Ordering::SeqCst); 1035 if current_vcnum != -1 { 1036 // tty已经初始化了之后才输出到屏幕 1037 let fr = (fr_color & 0x00ff0000) >> 16; 1038 let fg = (fr_color & 0x0000ff00) >> 8; 1039 let fb = fr_color & 0x000000ff; 1040 let br = (bk_color & 0x00ff0000) >> 16; 1041 let bg = (bk_color & 0x0000ff00) >> 8; 1042 let bb = bk_color & 0x000000ff; 1043 let buf = format!( 1044 "\x1B[38;2;{fr};{fg};{fb};48;2;{br};{bg};{bb}m{}\x1B[0m", 1045 character as char 1046 ); 1047 let port = tty_port(current_vcnum as usize); 1048 let tty = port.port_data().internal_tty(); 1049 if let Some(tty) = tty { 1050 send_to_default_serial8250_port(&[character]); 1051 return tty 1052 .write_without_serial(buf.as_bytes(), buf.len()) 1053 .map(|_| 0) 1054 .unwrap_or_else(|e| e.to_posix_errno()); 1055 } 1056 } 1057 return textui_putchar( 1058 character as char, 1059 FontColor::from(fr_color), 1060 FontColor::from(bk_color), 1061 ) 1062 .map(|_| 0) 1063 .unwrap_or_else(|e| e.to_posix_errno()); 1064 } 1065 1066 pub fn textui_putchar( 1067 character: char, 1068 fr_color: FontColor, 1069 bk_color: FontColor, 1070 ) -> Result<(), SystemError> { 1071 if unsafe { TEXTUI_IS_INIT } { 1072 return textui_framework() 1073 .current_window 1074 .lock_irqsave() 1075 .textui_putchar_window( 1076 character, 1077 fr_color, 1078 bk_color, 1079 textui_is_enable_put_to_window(), 1080 ); 1081 } else { 1082 //未初始化暴力输出 1083 return no_init_textui_putchar_window( 1084 character, 1085 fr_color, 1086 bk_color, 1087 textui_is_enable_put_to_window(), 1088 ); 1089 } 1090 } 1091 1092 /// 向默认窗口输出一个字符串 1093 pub fn textui_putstr( 1094 string: &str, 1095 fr_color: FontColor, 1096 bk_color: FontColor, 1097 ) -> Result<(), SystemError> { 1098 let window = if unsafe { TEXTUI_IS_INIT } { 1099 let fw = textui_framework(); 1100 let w = fw.current_window.clone(); 1101 Some(w) 1102 } else { 1103 None 1104 }; 1105 1106 let mut guard = window.as_ref().map(|w| w.lock_irqsave()); 1107 1108 for character in string.chars() { 1109 if unsafe { TEXTUI_IS_INIT } { 1110 guard.as_mut().unwrap().textui_putchar_window( 1111 character, 1112 fr_color, 1113 bk_color, 1114 textui_is_enable_put_to_window(), 1115 )?; 1116 } else { 1117 no_init_textui_putchar_window( 1118 character, 1119 fr_color, 1120 bk_color, 1121 textui_is_enable_put_to_window(), 1122 )?; 1123 } 1124 } 1125 1126 return Ok(()); 1127 } 1128 1129 /// 初始化text ui框架 1130 #[inline(never)] 1131 pub fn textui_init() -> Result<i32, SystemError> { 1132 #[cfg(target_arch = "x86_64")] 1133 textui_framwork_init(); 1134 1135 return Ok(0); 1136 } 1137