1811 lines
48 KiB
C
1811 lines
48 KiB
C
/* vim: tabstop=4 shiftwidth=4 noexpandtab
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* This file is part of ToaruOS and is released under the terms
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* of the NCSA / University of Illinois License - see LICENSE.md
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* Copyright (C) 2013-2014 Kevin Lange
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*
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* Terminal Emulator
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*
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* Graphical terminal emulator.
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*
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* Provides a number of features:
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* - Windowed and full screen modes
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* - Antialiased fonts
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* - Built-in fallback bitmap font
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* - ANSI escape support
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* - 256 colors
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <syscall.h>
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#include <string.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <time.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/wait.h>
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#include <sys/time.h>
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#include <getopt.h>
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#include <errno.h>
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#include <wchar.h>
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#define TRACE_APP_NAME "terminal"
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#include <toaru/trace.h>
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#include <toaru/utf8decode.h>
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#include <toaru/yutani.h>
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#include <toaru/decorations.h>
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#include <toaru/graphics.h>
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#include <toaru/kbd.h>
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#include <toaru/termemu.h>
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#include <toaru/spinlock.h>
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#include <toaru/list.h>
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#include "terminal-palette.h"
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#include "terminal-font.h"
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#define USE_BELL 0
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/* master and slave pty descriptors */
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static int fd_master, fd_slave;
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static FILE * terminal;
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int scale_fonts = 0; /* Whether fonts should be scaled */
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float font_scaling = 1.0; /* How much they should be scaled by */
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uint16_t term_width = 0; /* Width of the terminal (in cells) */
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uint16_t term_height = 0; /* Height of the terminal (in cells) */
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uint16_t font_size = 13; /* Font size according to Freetype */
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uint16_t char_width = 9; /* Width of a cell in pixels */
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uint16_t char_height = 20; /* Height of a cell in pixels */
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uint16_t char_offset = 0; /* Offset of the font within the cell */
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int csr_x = 0; /* Cursor X */
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int csr_y = 0; /* Cursor Y */
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term_cell_t * term_buffer = NULL; /* The terminal cell buffer */
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uint32_t current_fg = 7; /* Current foreground color */
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uint32_t current_bg = 0; /* Current background color */
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uint8_t cursor_on = 1; /* Whether or not the cursor should be rendered */
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uint8_t _fullscreen = 0; /* Whether or not we are running in fullscreen mode (GUI only) */
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uint8_t _no_frame = 0; /* Whether to disable decorations or not */
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uint8_t _login_shell = 0; /* Whether we're going to display a login shell or not */
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uint8_t _use_freetype = 0; /* Whether we should use freetype or not XXX seriously, how about some flags */
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uint8_t _force_kernel = 0;
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uint8_t _hold_out = 0; /* state indicator on last cell ignore \n */
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uint8_t _free_size = 1; /* Disable rounding when resized */
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int last_mouse_x = -1;
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int last_mouse_y = -1;
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int button_state = 0;
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uint64_t mouse_ticks = 0;
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yutani_window_t * window = NULL; /* GUI window */
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yutani_t * yctx = NULL;
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term_state_t * ansi_state = NULL;
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int32_t l_x = INT32_MAX;
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int32_t l_y = INT32_MAX;
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int32_t r_x = -1;
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int32_t r_y = -1;
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void reinit(); /* Defined way further down */
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void term_redraw_cursor();
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/* Some GUI-only options */
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uint32_t window_width = 640;
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uint32_t window_height = 480;
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#define TERMINAL_TITLE_SIZE 512
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char terminal_title[TERMINAL_TITLE_SIZE];
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size_t terminal_title_length = 0;
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gfx_context_t * ctx;
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static void render_decors();
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void term_clear();
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void flush_unused_images(void);
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void dump_buffer();
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/* Trigger to exit the terminal when the child process dies or
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* we otherwise receive an exit signal */
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volatile int exit_application = 0;
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static uint64_t get_ticks(void) {
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struct timeval now;
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gettimeofday(&now, NULL);
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return (uint64_t)now.tv_sec * 1000000LL + (uint64_t)now.tv_usec;
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}
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static void display_flip(void) {
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if (l_x != INT32_MAX && l_y != INT32_MAX) {
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yutani_flip_region(yctx, window, l_x, l_y, r_x - l_x, r_y - l_y);
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l_x = INT32_MAX;
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l_y = INT32_MAX;
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r_x = -1;
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r_y = -1;
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}
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}
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static void set_term_font_size(float s) {
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scale_fonts = 1;
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font_scaling = s;
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reinit(1);
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}
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/* Returns the lower of two shorts */
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int32_t min(int32_t a, int32_t b) {
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return (a < b) ? a : b;
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}
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/* Returns the higher of two shorts */
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int32_t max(int32_t a, int32_t b) {
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return (a > b) ? a : b;
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}
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void set_title(char * c) {
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int len = min(TERMINAL_TITLE_SIZE, strlen(c)+1);
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memcpy(terminal_title, c, len);
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terminal_title[len-1] = '\0';
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terminal_title_length = len - 1;
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render_decors();
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}
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/* Stuffs a string into the stdin of the terminal's child process
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* Useful for things like the ANSI DSR command. */
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void input_buffer_stuff(char * str) {
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size_t s = strlen(str) + 1;
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write(fd_master, str, s);
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}
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static void render_decors() {
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/* XXX Make the decorations library support Yutani windows */
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if (_fullscreen) return;
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if (!_no_frame) {
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render_decorations(window, ctx, terminal_title_length ? terminal_title : "Terminal");
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}
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yutani_window_advertise_icon(yctx, window, terminal_title_length ? terminal_title : "Terminal", "utilities-terminal");
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l_x = 0; l_y = 0;
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r_x = window->width;
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r_y = window->height;
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display_flip();
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}
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static inline void term_set_point(uint16_t x, uint16_t y, uint32_t color ) {
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if (_fullscreen) {
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color = alpha_blend_rgba(premultiply(rgba(0,0,0,0xFF)), color);
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}
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if (!_no_frame) {
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GFX(ctx, (x+decor_left_width),(y+decor_top_height)) = color;
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} else {
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GFX(ctx, x,y) = color;
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}
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}
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/* FreeType text rendering */
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#if 0
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FT_Library library;
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FT_Face face;
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FT_Face face_bold;
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FT_Face face_italic;
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FT_Face face_bold_italic;
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FT_Face face_extra;
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FT_Face face_symbol;
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FT_Face face_variable;
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FT_Face * fallbacks[] = {&face_variable, &face_symbol, &face_extra, &face_symbol, NULL};
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void drawChar(FT_Bitmap * bitmap, int x, int y, uint32_t fg, uint32_t bg) {
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int i, j, p, q;
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int x_max = x + bitmap->width;
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int y_max = y + bitmap->rows;
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for (j = y, q = 0; j < y_max; j++, q++) {
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for ( i = x, p = 0; i < x_max; i++, p++) {
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uint32_t a = _ALP(fg);
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a = (a * bitmap->buffer[q * bitmap->width + p]) / 255;
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uint32_t tmp = rgba(_RED(fg),_GRE(fg),_BLU(fg),a);
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term_set_point(i,j, alpha_blend_rgba(premultiply(bg), premultiply(tmp)));
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}
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}
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}
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#endif
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void draw_semi_block(int c, int x, int y, uint32_t fg, uint32_t bg) {
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int height;
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bg = premultiply(bg);
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fg = premultiply(fg);
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if (c == 0x2580) {
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uint32_t t = bg;
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bg = fg;
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fg = t;
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c = 0x2584;
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for (uint8_t i = 0; i < char_height; ++i) {
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for (uint8_t j = 0; j < char_width; ++j) {
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term_set_point(x+j,y+i,bg);
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}
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}
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}
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c -= 0x2580;
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height = char_height - ((c * char_height) / 8);
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for (uint8_t i = height; i < char_height; ++i) {
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for (uint8_t j = 0; j < char_width; ++j) {
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term_set_point(x+j, y+i,fg);
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}
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}
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}
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uint32_t ununicode(uint32_t c) {
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switch (c) {
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case L'☺': return 1;
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case L'☻': return 2;
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case L'♥': return 3;
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case L'♦': return 4;
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case L'♣': return 5;
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case L'♠': return 6;
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case L'•': return 7;
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case L'◘': return 8;
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case L'○': return 9;
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case L'◙': return 10;
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case L'♂': return 11;
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case L'♀': return 12;
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case L'♪': return 13;
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case L'♫': return 14;
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case L'☼': return 15;
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case L'►': return 16;
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case L'◄': return 17;
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case L'↕': return 18;
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case L'‼': return 19;
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case L'¶': return 20;
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case L'§': return 21;
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case L'▬': return 22;
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case L'↨': return 23;
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case L'↑': return 24;
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case L'↓': return 25;
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case L'→': return 26;
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case L'←': return 27;
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case L'∟': return 28;
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case L'↔': return 29;
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case L'▲': return 30;
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case L'▼': return 31;
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/* ASCII text */
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case L'⌂': return 127;
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case L'Ç': return 128;
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case L'ü': return 129;
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case L'é': return 130;
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case L'â': return 131;
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case L'ä': return 132;
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case L'à': return 133;
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case L'å': return 134;
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case L'ç': return 135;
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case L'ê': return 136;
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case L'ë': return 137;
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case L'è': return 138;
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case L'ï': return 139;
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case L'î': return 140;
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case L'ì': return 141;
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case L'Ä': return 142;
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case L'Å': return 143;
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case L'É': return 144;
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case L'æ': return 145;
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case L'Æ': return 146;
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case L'ô': return 147;
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case L'ö': return 148;
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case L'ò': return 149;
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case L'û': return 150;
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case L'ù': return 151;
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case L'ÿ': return 152;
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case L'Ö': return 153;
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case L'Ü': return 154;
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case L'¢': return 155;
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case L'£': return 156;
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case L'¥': return 157;
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case L'₧': return 158;
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case L'ƒ': return 159;
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case L'á': return 160;
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case L'í': return 161;
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case L'ó': return 162;
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case L'ú': return 163;
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case L'ñ': return 164;
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case L'Ñ': return 165;
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case L'ª': return 166;
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case L'º': return 167;
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case L'¿': return 168;
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case L'⌐': return 169;
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case L'¬': return 170;
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case L'½': return 171;
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case L'¼': return 172;
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case L'¡': return 173;
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case L'«': return 174;
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case L'»': return 175;
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case L'░': return 176;
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case L'▒': return 177;
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case L'▓': return 178;
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case L'│': return 179;
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case L'┤': return 180;
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case L'╡': return 181;
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case L'╢': return 182;
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case L'╖': return 183;
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case L'╕': return 184;
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case L'╣': return 185;
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case L'║': return 186;
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case L'╗': return 187;
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case L'╝': return 188;
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case L'╜': return 189;
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case L'╛': return 190;
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case L'┐': return 191;
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case L'└': return 192;
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case L'┴': return 193;
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case L'┬': return 194;
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case L'├': return 195;
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case L'─': return 196;
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case L'┼': return 197;
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case L'╞': return 198;
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case L'╟': return 199;
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case L'╚': return 200;
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case L'╔': return 201;
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case L'╩': return 202;
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case L'╦': return 203;
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case L'╠': return 204;
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case L'═': return 205;
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case L'╬': return 206;
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case L'╧': return 207;
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case L'╨': return 208;
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case L'╤': return 209;
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case L'╥': return 210;
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case L'╙': return 211;
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case L'╘': return 212;
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case L'╒': return 213;
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case L'╓': return 214;
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case L'╫': return 215;
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case L'╪': return 216;
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case L'┘': return 217;
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case L'┌': return 218;
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case L'█': return 219;
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case L'▄': return 220;
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case L'▌': return 221;
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case L'▐': return 222;
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case L'▀': return 223;
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case L'α': return 224;
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case L'ß': return 225;
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case L'Γ': return 226;
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case L'π': return 227;
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case L'Σ': return 228;
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case L'σ': return 229;
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case L'µ': return 230;
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case L'τ': return 231;
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case L'Φ': return 232;
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case L'Θ': return 233;
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case L'Ω': return 234;
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case L'δ': return 235;
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case L'∞': return 236;
|
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case L'φ': return 237;
|
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case L'ε': return 238;
|
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case L'∩': return 239;
|
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case L'≡': return 240;
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case L'±': return 241;
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case L'≥': return 242;
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case L'≤': return 243;
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case L'⌠': return 244;
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case L'⌡': return 245;
|
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case L'÷': return 246;
|
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case L'≈': return 247;
|
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case L'°': return 248;
|
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case L'∙': return 249;
|
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case L'·': return 250;
|
||
case L'√': return 251;
|
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case L'ⁿ': return 252;
|
||
case L'²': return 253;
|
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case L'■': return 254;
|
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}
|
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return 4;
|
||
}
|
||
|
||
void
|
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term_write_char(
|
||
uint32_t val,
|
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uint16_t x,
|
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uint16_t y,
|
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uint32_t fg,
|
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uint32_t bg,
|
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uint8_t flags
|
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) {
|
||
|
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uint32_t _fg, _bg;
|
||
|
||
if (fg < PALETTE_COLORS) {
|
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_fg = term_colors[fg];
|
||
_fg |= 0xFF << 24;
|
||
} else {
|
||
_fg = fg;
|
||
}
|
||
if (bg < PALETTE_COLORS) {
|
||
_bg = term_colors[bg];
|
||
if (flags & ANSI_SPECBG) {
|
||
_bg |= 0xFF << 24;
|
||
} else {
|
||
_bg |= TERM_DEFAULT_OPAC << 24;
|
||
}
|
||
} else {
|
||
_bg = bg;
|
||
}
|
||
if (_use_freetype) {
|
||
#if 0
|
||
if (val == 0xFFFF) { return; } /* Unicode, do not redraw here */
|
||
for (uint8_t i = 0; i < char_height; ++i) {
|
||
for (uint8_t j = 0; j < char_width; ++j) {
|
||
term_set_point(x+j,y+i,premultiply(_bg));
|
||
}
|
||
}
|
||
if (flags & ANSI_WIDE) {
|
||
for (uint8_t i = 0; i < char_height; ++i) {
|
||
for (uint8_t j = char_width; j < 2 * char_width; ++j) {
|
||
term_set_point(x+j,y+i,premultiply(_bg));
|
||
}
|
||
}
|
||
}
|
||
if (val < 32 || val == ' ') {
|
||
goto _extra_stuff;
|
||
}
|
||
if (val >= 0x2580 && val <= 0x2588) {
|
||
draw_semi_block(val, x, y, _fg, _bg);
|
||
goto _extra_stuff;
|
||
}
|
||
|
||
int pen_x = x;
|
||
int pen_y = y + char_offset;
|
||
int error;
|
||
|
||
FT_Face * _font = NULL;
|
||
FT_GlyphSlot slot;
|
||
FT_UInt glyph_index;
|
||
|
||
if (flags & ANSI_ALTFONT) {
|
||
_font = &face_extra;
|
||
} else if (flags & ANSI_BOLD && flags & ANSI_ITALIC) {
|
||
_font = &face_bold_italic;
|
||
} else if (flags & ANSI_ITALIC) {
|
||
_font = &face_italic;
|
||
} else if (flags & ANSI_BOLD) {
|
||
_font = &face_bold;
|
||
} else {
|
||
_font = &face;
|
||
}
|
||
glyph_index = FT_Get_Char_Index(*_font, val);
|
||
|
||
if (!glyph_index) {
|
||
int i = 0;
|
||
while (!glyph_index && fallbacks[i]) {
|
||
_font = fallbacks[i];
|
||
glyph_index = FT_Get_Char_Index(*_font, val);
|
||
i++;
|
||
}
|
||
}
|
||
error = FT_Load_Glyph(*_font, glyph_index, FT_LOAD_DEFAULT);
|
||
if (error) {
|
||
fprintf(terminal, "Error loading glyph: %d\n", val);
|
||
fprintf(stderr, "Error loading glyph: %d\n", val);
|
||
};
|
||
slot = (*_font)->glyph;
|
||
if (slot->format == FT_GLYPH_FORMAT_OUTLINE) {
|
||
error = FT_Render_Glyph((*_font)->glyph, FT_RENDER_MODE_NORMAL);
|
||
if (error) {
|
||
fprintf(stderr, "Error rendering glyph: %d\n", val);
|
||
goto _extra_stuff;
|
||
}
|
||
}
|
||
drawChar(&slot->bitmap, pen_x + slot->bitmap_left, pen_y - slot->bitmap_top, _fg, _bg);
|
||
|
||
#endif
|
||
} else {
|
||
if (val >= 0x2580 && val <= 0x2588) {
|
||
for (uint8_t i = 0; i < char_height; ++i) {
|
||
for (uint8_t j = 0; j < char_width; ++j) {
|
||
term_set_point(x+j,y+i,premultiply(_bg));
|
||
}
|
||
}
|
||
draw_semi_block(val, x, y, _fg, _bg);
|
||
goto _extra_stuff;
|
||
}
|
||
if (val > 128) {
|
||
val = ununicode(val);
|
||
}
|
||
#ifdef number_font
|
||
uint8_t * c = number_font[val];
|
||
for (uint8_t i = 0; i < char_height; ++i) {
|
||
for (uint8_t j = 0; j < char_width; ++j) {
|
||
if (c[i] & (1 << (8-j))) {
|
||
term_set_point(x+j,y+i,_fg);
|
||
} else {
|
||
term_set_point(x+j,y+i,_bg);
|
||
}
|
||
}
|
||
}
|
||
#else
|
||
uint16_t * c = large_font[val];
|
||
for (uint8_t i = 0; i < char_height; ++i) {
|
||
for (uint8_t j = 0; j < char_width; ++j) {
|
||
if (c[i] & (1 << (15-j))) {
|
||
term_set_point(x+j,y+i,_fg);
|
||
} else {
|
||
term_set_point(x+j,y+i,_bg);
|
||
}
|
||
}
|
||
}
|
||
#endif
|
||
}
|
||
_extra_stuff:
|
||
if (flags & ANSI_UNDERLINE) {
|
||
for (uint8_t i = 0; i < char_width; ++i) {
|
||
term_set_point(x + i, y + char_offset + 2, _fg);
|
||
}
|
||
}
|
||
if (flags & ANSI_CROSS) {
|
||
for (uint8_t i = 0; i < char_width; ++i) {
|
||
term_set_point(x + i, y + char_offset - 5, _fg);
|
||
}
|
||
}
|
||
if (flags & ANSI_BORDER) {
|
||
for (uint8_t i = 0; i < char_height; ++i) {
|
||
term_set_point(x , y + i, _fg);
|
||
term_set_point(x + (char_width - 1), y + i, _fg);
|
||
}
|
||
for (uint8_t j = 0; j < char_width; ++j) {
|
||
term_set_point(x + j, y, _fg);
|
||
term_set_point(x + j, y + (char_height - 1), _fg);
|
||
}
|
||
}
|
||
|
||
if (!_no_frame) {
|
||
l_x = min(l_x, decor_left_width + x);
|
||
l_y = min(l_y, decor_top_height + y);
|
||
|
||
if (flags & ANSI_WIDE) {
|
||
r_x = max(r_x, decor_left_width + x + char_width * 2);
|
||
r_y = max(r_y, decor_top_height + y + char_height * 2);
|
||
} else {
|
||
r_x = max(r_x, decor_left_width + x + char_width);
|
||
r_y = max(r_y, decor_top_height + y + char_height);
|
||
}
|
||
} else {
|
||
l_x = min(l_x, x);
|
||
l_y = min(l_y, y);
|
||
|
||
if (flags & ANSI_WIDE) {
|
||
r_x = max(r_x, x + char_width * 2);
|
||
r_y = max(r_y, y + char_height * 2);
|
||
} else {
|
||
r_x = max(r_x, x + char_width);
|
||
r_y = max(r_y, y + char_height);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void cell_set(uint16_t x, uint16_t y, uint32_t c, uint32_t fg, uint32_t bg, uint32_t flags) {
|
||
if (x >= term_width || y >= term_height) return;
|
||
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
|
||
cell->c = c;
|
||
cell->fg = fg;
|
||
cell->bg = bg;
|
||
cell->flags = flags;
|
||
}
|
||
|
||
static void redraw_cell_image(uint16_t x, uint16_t y, term_cell_t * cell) {
|
||
if (x >= term_width || y >= term_height) return;
|
||
uint32_t * data = (uint32_t *)cell->fg;
|
||
for (uint32_t yy = 0; yy < char_height; ++yy) {
|
||
for (uint32_t xx = 0; xx < char_width; ++xx) {
|
||
term_set_point(x * char_width + xx, y * char_height + yy, *data);
|
||
data++;
|
||
}
|
||
}
|
||
if (!_no_frame) {
|
||
l_x = min(l_x, decor_left_width + x * char_width);
|
||
l_y = min(l_y, decor_top_height + y * char_height);
|
||
r_x = max(r_x, decor_left_width + x * char_width + char_width);
|
||
r_y = max(r_y, decor_top_height + y * char_height + char_height);
|
||
} else {
|
||
l_x = min(l_x, x * char_width);
|
||
l_y = min(l_y, y * char_height);
|
||
r_x = max(r_x, x * char_width + char_width);
|
||
r_y = max(r_y, y * char_height + char_height);
|
||
}
|
||
}
|
||
|
||
static void cell_redraw(uint16_t x, uint16_t y) {
|
||
if (x >= term_width || y >= term_height) return;
|
||
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
|
||
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,y,cell); return; }
|
||
if (((uint32_t *)cell)[0] == 0x00000000) {
|
||
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
|
||
} else {
|
||
term_write_char(cell->c, x * char_width, y * char_height, cell->fg, cell->bg, cell->flags);
|
||
}
|
||
}
|
||
|
||
static void cell_redraw_inverted(uint16_t x, uint16_t y) {
|
||
if (x >= term_width || y >= term_height) return;
|
||
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
|
||
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,y,cell); return; }
|
||
if (((uint32_t *)cell)[0] == 0x00000000) {
|
||
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_BG, TERM_DEFAULT_FG, TERM_DEFAULT_FLAGS | ANSI_SPECBG);
|
||
} else {
|
||
term_write_char(cell->c, x * char_width, y * char_height, cell->bg, cell->fg, cell->flags | ANSI_SPECBG);
|
||
}
|
||
}
|
||
|
||
static void cell_redraw_box(uint16_t x, uint16_t y) {
|
||
if (x >= term_width || y >= term_height) return;
|
||
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
|
||
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,y,cell); return; }
|
||
if (((uint32_t *)cell)[0] == 0x00000000) {
|
||
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS | ANSI_BORDER);
|
||
} else {
|
||
term_write_char(cell->c, x * char_width, y * char_height, cell->fg, cell->bg, cell->flags | ANSI_BORDER);
|
||
}
|
||
}
|
||
|
||
void render_cursor() {
|
||
if (!window->focused) {
|
||
cell_redraw_box(csr_x, csr_y);
|
||
} else {
|
||
cell_redraw_inverted(csr_x, csr_y);
|
||
}
|
||
}
|
||
|
||
void draw_cursor() {
|
||
if (!cursor_on) return;
|
||
mouse_ticks = get_ticks();
|
||
render_cursor();
|
||
}
|
||
|
||
void term_redraw_all() {
|
||
for (int i = 0; i < term_height; i++) {
|
||
for (int x = 0; x < term_width; ++x) {
|
||
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (i * term_width + x) * sizeof(term_cell_t));
|
||
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,i,cell); continue; }
|
||
if (((uint32_t *)cell)[0] == 0x00000000) {
|
||
term_write_char(' ', x * char_width, i * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
|
||
} else {
|
||
term_write_char(cell->c, x * char_width, i * char_height, cell->fg, cell->bg, cell->flags);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
void term_scroll(int how_much) {
|
||
if (how_much >= term_height || -how_much >= term_height) {
|
||
term_clear();
|
||
return;
|
||
}
|
||
if (how_much == 0) {
|
||
return;
|
||
}
|
||
|
||
cell_redraw(csr_x, csr_y);
|
||
if (how_much > 0) {
|
||
/* Shift terminal cells one row up */
|
||
memmove(term_buffer, (void *)((uintptr_t)term_buffer + sizeof(term_cell_t) * term_width), sizeof(term_cell_t) * term_width * (term_height - how_much));
|
||
/* Reset the "new" row to clean cells */
|
||
memset((void *)((uintptr_t)term_buffer + sizeof(term_cell_t) * term_width * (term_height - how_much)), 0x0, sizeof(term_cell_t) * term_width * how_much);
|
||
/* In graphical modes, we will shift the graphics buffer up as necessary */
|
||
uintptr_t dst, src;
|
||
size_t siz = char_height * (term_height - how_much) * GFX_W(ctx) * GFX_B(ctx);
|
||
if (!_no_frame) {
|
||
/* Must include decorations */
|
||
dst = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * decor_top_height) * GFX_B(ctx);
|
||
src = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * (decor_top_height + char_height * how_much)) * GFX_B(ctx);
|
||
} else {
|
||
/* Can skip decorations */
|
||
dst = (uintptr_t)ctx->backbuffer;
|
||
src = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * char_height * how_much) * GFX_B(ctx);
|
||
}
|
||
/* Perform the shift */
|
||
memmove((void *)dst, (void *)src, siz);
|
||
/* And redraw the new rows */
|
||
for (int i = 0; i < how_much; ++i) {
|
||
for (uint16_t x = 0; x < term_width; ++x) {
|
||
cell_set(x,term_height - how_much,' ', current_fg, current_bg, ansi_state->flags);
|
||
cell_redraw(x, term_height - how_much);
|
||
}
|
||
}
|
||
} else {
|
||
how_much = -how_much;
|
||
/* Shift terminal cells one row up */
|
||
memmove((void *)((uintptr_t)term_buffer + sizeof(term_cell_t) * term_width), term_buffer, sizeof(term_cell_t) * term_width * (term_height - how_much));
|
||
/* Reset the "new" row to clean cells */
|
||
memset(term_buffer, 0x0, sizeof(term_cell_t) * term_width * how_much);
|
||
uintptr_t dst, src;
|
||
size_t siz = char_height * (term_height - how_much) * GFX_W(ctx) * GFX_B(ctx);
|
||
if (!_no_frame) {
|
||
src = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * decor_top_height) * GFX_B(ctx);
|
||
dst = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * (decor_top_height + char_height * how_much)) * GFX_B(ctx);
|
||
} else {
|
||
src = (uintptr_t)ctx->backbuffer;
|
||
dst = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * char_height * how_much) * GFX_B(ctx);
|
||
}
|
||
/* Perform the shift */
|
||
memmove((void *)dst, (void *)src, siz);
|
||
/* And redraw the new rows */
|
||
for (int i = 0; i < how_much; ++i) {
|
||
for (uint16_t x = 0; x < term_width; ++x) {
|
||
cell_redraw(x, i);
|
||
}
|
||
}
|
||
}
|
||
flush_unused_images();
|
||
yutani_flip(yctx, window);
|
||
}
|
||
|
||
int is_wide(uint32_t codepoint) {
|
||
if (codepoint < 256) return 0;
|
||
return wcwidth(codepoint) == 2;
|
||
}
|
||
|
||
struct scrollback_row {
|
||
unsigned short width;
|
||
term_cell_t cells[];
|
||
};
|
||
|
||
#define MAX_SCROLLBACK 10240
|
||
|
||
list_t * scrollback_list = NULL;
|
||
|
||
int scrollback_offset = 0;
|
||
|
||
void save_scrollback() {
|
||
/* Save the current top row for scrollback */
|
||
if (!scrollback_list) {
|
||
scrollback_list = list_create();
|
||
}
|
||
if (scrollback_list->length == MAX_SCROLLBACK) {
|
||
free(list_dequeue(scrollback_list));
|
||
}
|
||
|
||
struct scrollback_row * row = malloc(sizeof(struct scrollback_row) + sizeof(term_cell_t) * term_width + 20);
|
||
row->width = term_width;
|
||
for (int i = 0; i < term_width; ++i) {
|
||
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (i) * sizeof(term_cell_t));
|
||
memcpy(&row->cells[i], cell, sizeof(term_cell_t));
|
||
}
|
||
|
||
list_insert(scrollback_list, row);
|
||
}
|
||
|
||
void redraw_scrollback() {
|
||
if (!scrollback_offset) {
|
||
term_redraw_all();
|
||
display_flip();
|
||
return;
|
||
}
|
||
if (scrollback_offset < term_height) {
|
||
for (int i = scrollback_offset; i < term_height; i++) {
|
||
int y = i - scrollback_offset;
|
||
for (int x = 0; x < term_width; ++x) {
|
||
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
|
||
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,i,cell); continue; }
|
||
if (((uint32_t *)cell)[0] == 0x00000000) {
|
||
term_write_char(' ', x * char_width, i * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
|
||
} else {
|
||
term_write_char(cell->c, x * char_width, i * char_height, cell->fg, cell->bg, cell->flags);
|
||
}
|
||
}
|
||
}
|
||
|
||
node_t * node = scrollback_list->tail;
|
||
for (int i = 0; i < scrollback_offset; ++i) {
|
||
struct scrollback_row * row = (struct scrollback_row *)node->value;
|
||
|
||
int y = scrollback_offset - 1 - i;
|
||
int width = row->width;
|
||
if (width > term_width) {
|
||
width = term_width;
|
||
} else {
|
||
for (int x = row->width; x < term_width; ++x) {
|
||
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
|
||
}
|
||
}
|
||
for (int x = 0; x < width; ++x) {
|
||
term_cell_t * cell = &row->cells[x];
|
||
if (((uint32_t *)cell)[0] == 0x00000000) {
|
||
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
|
||
} else {
|
||
term_write_char(cell->c, x * char_width, y * char_height, cell->fg, cell->bg, cell->flags);
|
||
}
|
||
}
|
||
|
||
node = node->prev;
|
||
}
|
||
} else {
|
||
node_t * node = scrollback_list->tail;
|
||
for (int i = 0; i < scrollback_offset - term_height; ++i) {
|
||
node = node->prev;
|
||
}
|
||
for (int i = scrollback_offset - term_height; i < scrollback_offset; ++i) {
|
||
struct scrollback_row * row = (struct scrollback_row *)node->value;
|
||
|
||
int y = scrollback_offset - 1 - i;
|
||
int width = row->width;
|
||
if (width > term_width) {
|
||
width = term_width;
|
||
} else {
|
||
for (int x = row->width; x < term_width; ++x) {
|
||
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
|
||
}
|
||
}
|
||
for (int x = 0; x < width; ++x) {
|
||
term_cell_t * cell = &row->cells[x];
|
||
if (((uint32_t *)cell)[0] == 0x00000000) {
|
||
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
|
||
} else {
|
||
term_write_char(cell->c, x * char_width, y * char_height, cell->fg, cell->bg, cell->flags);
|
||
}
|
||
}
|
||
|
||
node = node->prev;
|
||
}
|
||
}
|
||
display_flip();
|
||
}
|
||
|
||
void term_write(char c) {
|
||
static uint32_t unicode_state = 0;
|
||
static uint32_t codepoint = 0;
|
||
|
||
cell_redraw(csr_x, csr_y);
|
||
|
||
if (!decode(&unicode_state, &codepoint, (uint8_t)c)) {
|
||
uint32_t o = codepoint;
|
||
codepoint = 0;
|
||
if (c == '\r') {
|
||
csr_x = 0;
|
||
return;
|
||
}
|
||
if (csr_x < 0) csr_x = 0;
|
||
if (csr_y < 0) csr_y = 0;
|
||
if (csr_x == term_width) {
|
||
csr_x = 0;
|
||
++csr_y;
|
||
}
|
||
if (csr_y == term_height) {
|
||
save_scrollback();
|
||
term_scroll(1);
|
||
csr_y = term_height - 1;
|
||
}
|
||
if (c == '\n') {
|
||
if (csr_x == 0 && _hold_out) {
|
||
_hold_out = 0;
|
||
return;
|
||
}
|
||
++csr_y;
|
||
if (csr_y == term_height) {
|
||
save_scrollback();
|
||
term_scroll(1);
|
||
csr_y = term_height - 1;
|
||
}
|
||
draw_cursor();
|
||
} else if (c == '\007') {
|
||
/* bell */
|
||
#if USE_BELL
|
||
for (int i = 0; i < term_height; ++i) {
|
||
for (int j = 0; j < term_width; ++j) {
|
||
cell_redraw_inverted(j, i);
|
||
}
|
||
}
|
||
syscall_nanosleep(0,10);
|
||
term_redraw_all();
|
||
#endif
|
||
} else if (c == '\b') {
|
||
if (csr_x > 0) {
|
||
--csr_x;
|
||
}
|
||
cell_redraw(csr_x, csr_y);
|
||
draw_cursor();
|
||
} else if (c == '\t') {
|
||
csr_x += (8 - csr_x % 8);
|
||
draw_cursor();
|
||
} else {
|
||
int wide = is_wide(o);
|
||
uint8_t flags = ansi_state->flags;
|
||
if (wide && csr_x == term_width - 1) {
|
||
csr_x = 0;
|
||
++csr_y;
|
||
}
|
||
if (wide) {
|
||
flags = flags | ANSI_WIDE;
|
||
}
|
||
cell_set(csr_x,csr_y, o, current_fg, current_bg, flags);
|
||
cell_redraw(csr_x,csr_y);
|
||
csr_x++;
|
||
if (wide && csr_x != term_width) {
|
||
cell_set(csr_x, csr_y, 0xFFFF, current_fg, current_bg, ansi_state->flags);
|
||
cell_redraw(csr_x,csr_y);
|
||
cell_redraw(csr_x-1,csr_y);
|
||
csr_x++;
|
||
}
|
||
}
|
||
} else if (unicode_state == UTF8_REJECT) {
|
||
unicode_state = 0;
|
||
codepoint = 0;
|
||
}
|
||
draw_cursor();
|
||
}
|
||
|
||
void term_set_csr(int x, int y) {
|
||
cell_redraw(csr_x,csr_y);
|
||
csr_x = x;
|
||
csr_y = y;
|
||
draw_cursor();
|
||
}
|
||
|
||
int term_get_csr_x(void) {
|
||
return csr_x;
|
||
}
|
||
|
||
int term_get_csr_y(void) {
|
||
return csr_y;
|
||
}
|
||
|
||
static list_t * images_list = NULL;
|
||
|
||
void term_set_cell_contents(int x, int y, char * data) {
|
||
if (!images_list) {
|
||
images_list = list_create();
|
||
}
|
||
char * cell_data = malloc(char_width * char_height * sizeof(uint32_t));
|
||
memcpy(cell_data, data, char_width * char_height * sizeof(uint32_t));
|
||
list_insert(images_list, cell_data);
|
||
cell_set(x, y, ' ', (uint32_t)cell_data, 0, ANSI_EXT_IMG);
|
||
return;
|
||
}
|
||
|
||
void flush_unused_images(void) {
|
||
if (!images_list) return;
|
||
|
||
list_t * tmp = list_create();
|
||
for (int y = 0; y < term_height; ++y) {
|
||
for (int x = 0; x < term_width; ++x) {
|
||
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
|
||
if (cell->flags & ANSI_EXT_IMG) {
|
||
list_insert(tmp, (void *)cell->fg);
|
||
}
|
||
}
|
||
}
|
||
foreach(node, images_list) {
|
||
if (!list_find(tmp, node->value)) {
|
||
free(node->value);
|
||
}
|
||
}
|
||
|
||
list_free(images_list);
|
||
images_list = tmp;
|
||
}
|
||
|
||
int term_get_cell_width(void) {
|
||
return char_width;
|
||
}
|
||
|
||
int term_get_cell_height(void) {
|
||
return char_height;
|
||
}
|
||
|
||
void term_set_csr_show(int on) {
|
||
cursor_on = on;
|
||
}
|
||
|
||
void term_set_colors(uint32_t fg, uint32_t bg) {
|
||
current_fg = fg;
|
||
current_bg = bg;
|
||
}
|
||
|
||
void term_redraw_cursor() {
|
||
if (term_buffer) {
|
||
draw_cursor();
|
||
}
|
||
}
|
||
|
||
void flip_cursor() {
|
||
static uint8_t cursor_flipped = 0;
|
||
if (scrollback_offset != 0) {
|
||
return; /* Don't flip cursor while drawing scrollback */
|
||
}
|
||
if (window->focused && cursor_flipped) {
|
||
cell_redraw(csr_x, csr_y);
|
||
} else {
|
||
render_cursor();
|
||
}
|
||
display_flip();
|
||
cursor_flipped = 1 - cursor_flipped;
|
||
}
|
||
|
||
void term_set_cell(int x, int y, uint32_t c) {
|
||
cell_set(x, y, c, current_fg, current_bg, ansi_state->flags);
|
||
cell_redraw(x, y);
|
||
}
|
||
|
||
void term_redraw_cell(int x, int y) {
|
||
if (x < 0 || y < 0 || x >= term_width || y >= term_height) return;
|
||
cell_redraw(x,y);
|
||
}
|
||
|
||
void term_clear(int i) {
|
||
if (i == 2) {
|
||
/* Oh dear */
|
||
csr_x = 0;
|
||
csr_y = 0;
|
||
memset((void *)term_buffer, 0x00, term_width * term_height * sizeof(term_cell_t));
|
||
if (!_no_frame) {
|
||
render_decors();
|
||
}
|
||
term_redraw_all();
|
||
} else if (i == 0) {
|
||
for (int x = csr_x; x < term_width; ++x) {
|
||
term_set_cell(x, csr_y, ' ');
|
||
}
|
||
for (int y = csr_y + 1; y < term_height; ++y) {
|
||
for (int x = 0; x < term_width; ++x) {
|
||
term_set_cell(x, y, ' ');
|
||
}
|
||
}
|
||
} else if (i == 1) {
|
||
for (int y = 0; y < csr_y; ++y) {
|
||
for (int x = 0; x < term_width; ++x) {
|
||
term_set_cell(x, y, ' ');
|
||
}
|
||
}
|
||
for (int x = 0; x < csr_x; ++x) {
|
||
term_set_cell(x, csr_y, ' ');
|
||
}
|
||
}
|
||
flush_unused_images();
|
||
}
|
||
|
||
#if 0
|
||
char * loadMemFont(char * name, char * ident, size_t * size) {
|
||
size_t s = 0;
|
||
int error;
|
||
char tmp[100];
|
||
snprintf(tmp, 100, "sys.%s.fonts.%s", yctx->server_ident, ident);
|
||
|
||
char * font = (char *)syscall_shm_obtain(tmp, &s);
|
||
*size = s;
|
||
return font;
|
||
}
|
||
#endif
|
||
|
||
#define INPUT_SIZE 1024
|
||
char input_buffer[INPUT_SIZE];
|
||
int input_collected = 0;
|
||
|
||
void clear_input() {
|
||
memset(input_buffer, 0x0, INPUT_SIZE);
|
||
input_collected = 0;
|
||
}
|
||
|
||
pid_t child_pid = 0;
|
||
|
||
void handle_input(char c) {
|
||
write(fd_master, &c, 1);
|
||
display_flip();
|
||
}
|
||
|
||
void handle_input_s(char * c) {
|
||
write(fd_master, c, strlen(c));
|
||
display_flip();
|
||
}
|
||
|
||
void scroll_up(int amount) {
|
||
int i = 0;
|
||
while (i < amount && scrollback_list && scrollback_offset < (int)scrollback_list->length) {
|
||
scrollback_offset ++;
|
||
i++;
|
||
}
|
||
redraw_scrollback();
|
||
}
|
||
|
||
void scroll_down(int amount) {
|
||
int i = 0;
|
||
while (i < amount && scrollback_list && scrollback_offset != 0) {
|
||
scrollback_offset -= 1;
|
||
i++;
|
||
}
|
||
redraw_scrollback();
|
||
}
|
||
|
||
void key_event(int ret, key_event_t * event) {
|
||
if (ret) {
|
||
if (event->modifiers & KEY_MOD_LEFT_ALT || event->modifiers & KEY_MOD_RIGHT_ALT) {
|
||
handle_input('\033');
|
||
}
|
||
if ((event->modifiers & KEY_MOD_LEFT_SHIFT || event->modifiers & KEY_MOD_RIGHT_SHIFT) &&
|
||
event->key == '\t') {
|
||
handle_input_s("\033[Z");
|
||
return;
|
||
}
|
||
handle_input(event->key);
|
||
} else {
|
||
if (event->action == KEY_ACTION_UP) return;
|
||
switch (event->keycode) {
|
||
case KEY_F1:
|
||
handle_input_s("\033OP");
|
||
break;
|
||
case KEY_F2:
|
||
handle_input_s("\033OQ");
|
||
break;
|
||
case KEY_F3:
|
||
handle_input_s("\033OR");
|
||
break;
|
||
case KEY_F4:
|
||
handle_input_s("\033OS");
|
||
break;
|
||
case KEY_F5:
|
||
handle_input_s("\033[15~");
|
||
break;
|
||
case KEY_F6:
|
||
handle_input_s("\033[17~");
|
||
break;
|
||
case KEY_F7:
|
||
handle_input_s("\033[18~");
|
||
break;
|
||
case KEY_F8:
|
||
handle_input_s("\033[19~");
|
||
break;
|
||
case KEY_F9:
|
||
handle_input_s("\033[20~");
|
||
break;
|
||
case KEY_F10:
|
||
handle_input_s("\033[21~");
|
||
break;
|
||
case KEY_F11:
|
||
handle_input_s("\033[23~");
|
||
break;
|
||
case KEY_F12:
|
||
/* Toggle decorations */
|
||
if (!_fullscreen) {
|
||
_no_frame = !_no_frame;
|
||
window_width = window->width - decor_width() * (!_no_frame);
|
||
window_height = window->height - decor_height() * (!_no_frame);
|
||
reinit(1);
|
||
}
|
||
break;
|
||
case KEY_ARROW_UP:
|
||
if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_CTRL) {
|
||
handle_input_s("\033[6A");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_CTRL) {
|
||
handle_input_s("\033[5A");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_ALT) {
|
||
handle_input_s("\033[4A");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_ALT) {
|
||
handle_input_s("\033[3A");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
|
||
handle_input_s("\033[2A");
|
||
} else {
|
||
handle_input_s("\033[A");
|
||
}
|
||
break;
|
||
case KEY_ARROW_DOWN:
|
||
if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_CTRL) {
|
||
handle_input_s("\033[6B");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_CTRL) {
|
||
handle_input_s("\033[5B");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_ALT) {
|
||
handle_input_s("\033[4B");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_ALT) {
|
||
handle_input_s("\033[3B");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
|
||
handle_input_s("\033[2B");
|
||
} else {
|
||
handle_input_s("\033[B");
|
||
}
|
||
break;
|
||
case KEY_ARROW_RIGHT:
|
||
if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_CTRL) {
|
||
handle_input_s("\033[6C");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_CTRL) {
|
||
handle_input_s("\033[5C");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_ALT) {
|
||
handle_input_s("\033[4C");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_ALT) {
|
||
handle_input_s("\033[3C");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
|
||
handle_input_s("\033[2C");
|
||
} else {
|
||
handle_input_s("\033[C");
|
||
}
|
||
break;
|
||
case KEY_ARROW_LEFT:
|
||
if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_CTRL) {
|
||
handle_input_s("\033[6D");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_CTRL) {
|
||
handle_input_s("\033[5D");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_ALT) {
|
||
handle_input_s("\033[4D");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_ALT) {
|
||
handle_input_s("\033[3D");
|
||
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
|
||
handle_input_s("\033[2D");
|
||
} else {
|
||
handle_input_s("\033[D");
|
||
}
|
||
break;
|
||
case KEY_PAGE_UP:
|
||
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
|
||
scroll_up(term_height/2);
|
||
} else {
|
||
handle_input_s("\033[5~");
|
||
}
|
||
break;
|
||
case KEY_PAGE_DOWN:
|
||
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
|
||
scroll_down(term_height/2);
|
||
} else {
|
||
handle_input_s("\033[6~");
|
||
}
|
||
break;
|
||
case KEY_HOME:
|
||
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
|
||
scrollback_offset = scrollback_list->length;
|
||
redraw_scrollback();
|
||
} else {
|
||
handle_input_s("\033OH");
|
||
}
|
||
break;
|
||
case KEY_END:
|
||
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
|
||
scrollback_offset = 0;
|
||
redraw_scrollback();
|
||
} else {
|
||
handle_input_s("\033OF");
|
||
}
|
||
break;
|
||
case KEY_DEL:
|
||
handle_input_s("\033[3~");
|
||
break;
|
||
case KEY_INSERT:
|
||
handle_input_s("\033[2~");
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
void check_for_exit(void) {
|
||
if (exit_application) return;
|
||
|
||
pid_t pid = waitpid(-1, NULL, WNOHANG);
|
||
|
||
if (pid != child_pid) return;
|
||
|
||
/* Clean up */
|
||
exit_application = 1;
|
||
/* Exit */
|
||
char exit_message[] = "[Process terminated]\n";
|
||
write(fd_slave, exit_message, sizeof(exit_message));
|
||
}
|
||
|
||
void usage(char * argv[]) {
|
||
printf(
|
||
"Terminal Emulator\n"
|
||
"\n"
|
||
"usage: %s [-b] [-F] [-h]\n"
|
||
"\n"
|
||
" -F --fullscreen \033[3mRun in fullscreen (background) mode.\033[0m\n"
|
||
" -b --bitmap \033[3mUse the integrated bitmap font.\033[0m\n"
|
||
" -h --help \033[3mShow this help message.\033[0m\n"
|
||
" -s --scale \033[3mScale the font in FreeType mode by a given amount.\033[0m\n"
|
||
" -x --grid \033[3mMake resizes round to nearest match for character cell size.\033[0m\n"
|
||
" -n --no-frame \033[3mDisable decorations.\033[0m\n"
|
||
"\n"
|
||
" This terminal emulator provides basic support for VT220 escapes and\n"
|
||
" XTerm extensions, including 256 color support and font effects.\n",
|
||
argv[0]);
|
||
}
|
||
|
||
term_callbacks_t term_callbacks = {
|
||
&term_write,
|
||
term_set_colors,
|
||
term_set_csr,
|
||
term_get_csr_x,
|
||
term_get_csr_y,
|
||
term_set_cell,
|
||
term_clear,
|
||
term_scroll,
|
||
term_redraw_cursor,
|
||
input_buffer_stuff,
|
||
set_term_font_size,
|
||
set_title,
|
||
term_set_cell_contents,
|
||
term_get_cell_width,
|
||
term_get_cell_height,
|
||
term_set_csr_show,
|
||
};
|
||
|
||
void reinit(int send_sig) {
|
||
if (_use_freetype) {
|
||
#if 0
|
||
/* Reset font sizes */
|
||
|
||
font_size = 13;
|
||
char_height = 17;
|
||
char_width = 8;
|
||
char_offset = 13;
|
||
|
||
if (scale_fonts) {
|
||
/* Recalculate scaling */
|
||
font_size *= font_scaling;
|
||
char_height *= font_scaling;
|
||
char_width *= font_scaling;
|
||
char_offset *= font_scaling;
|
||
}
|
||
|
||
/* Initialize the freetype font pixel sizes */
|
||
FT_Set_Pixel_Sizes(face, font_size, font_size);
|
||
FT_Set_Pixel_Sizes(face_bold, font_size, font_size);
|
||
FT_Set_Pixel_Sizes(face_italic, font_size, font_size);
|
||
FT_Set_Pixel_Sizes(face_bold_italic, font_size, font_size);
|
||
FT_Set_Pixel_Sizes(face_extra, font_size, font_size);
|
||
FT_Set_Pixel_Sizes(face_symbol, font_size, font_size);
|
||
FT_Set_Pixel_Sizes(face_variable, font_size, font_size);
|
||
#endif
|
||
}
|
||
|
||
int old_width = term_width;
|
||
int old_height = term_height;
|
||
|
||
term_width = window_width / char_width;
|
||
term_height = window_height / char_height;
|
||
if (term_buffer) {
|
||
term_cell_t * new_term_buffer = malloc(sizeof(term_cell_t) * term_width * term_height);
|
||
|
||
memset(new_term_buffer, 0x0, sizeof(term_cell_t) * term_width * term_height);
|
||
|
||
int offset = 0;
|
||
if (term_height < old_height) {
|
||
offset = old_height - term_height;
|
||
}
|
||
for (int row = 0; row < min(old_height, term_height); ++row) {
|
||
for (int col = 0; col < min(old_width, term_width); ++col) {
|
||
term_cell_t * old_cell = (term_cell_t *)((uintptr_t)term_buffer + ((row + offset) * old_width + col) * sizeof(term_cell_t));
|
||
term_cell_t * new_cell = (term_cell_t *)((uintptr_t)new_term_buffer + (row * term_width + col) * sizeof(term_cell_t));
|
||
*new_cell = *old_cell;
|
||
}
|
||
}
|
||
csr_y -= offset;
|
||
free(term_buffer);
|
||
|
||
term_buffer = new_term_buffer;
|
||
} else {
|
||
term_buffer = malloc(sizeof(term_cell_t) * term_width * term_height);
|
||
memset(term_buffer, 0x0, sizeof(term_cell_t) * term_width * term_height);
|
||
}
|
||
|
||
int old_mouse_state = 0;
|
||
if (ansi_state) old_mouse_state = ansi_state->mouse_on;
|
||
ansi_state = ansi_init(ansi_state, term_width, term_height, &term_callbacks);
|
||
ansi_state->mouse_on = old_mouse_state;
|
||
|
||
draw_fill(ctx, rgba(0,0,0, TERM_DEFAULT_OPAC));
|
||
render_decors();
|
||
term_redraw_all();
|
||
|
||
struct winsize w;
|
||
w.ws_row = term_height;
|
||
w.ws_col = term_width;
|
||
w.ws_xpixel = term_width * char_width;
|
||
w.ws_ypixel = term_height * char_height;
|
||
ioctl(fd_master, TIOCSWINSZ, &w);
|
||
|
||
if (send_sig) {
|
||
kill(child_pid, SIGWINCH);
|
||
}
|
||
}
|
||
|
||
static void resize_finish(int width, int height) {
|
||
static int resize_attempts = 0;
|
||
|
||
int extra_x = 0;
|
||
int extra_y = 0;
|
||
|
||
if (!_no_frame) {
|
||
extra_x = decor_width();
|
||
extra_y = decor_height();
|
||
}
|
||
|
||
int t_window_width = width - extra_x;
|
||
int t_window_height = height - extra_y;
|
||
|
||
if (t_window_width < char_width * 20 || t_window_height < char_height * 10) {
|
||
resize_attempts++;
|
||
int n_width = extra_x + max(char_width * 20, t_window_width);
|
||
int n_height = extra_y + max(char_height * 10, t_window_height);
|
||
yutani_window_resize_offer(yctx, window, n_width, n_height);
|
||
return;
|
||
}
|
||
|
||
if (!_free_size && ((t_window_width % char_width != 0 || t_window_height % char_height != 0) && resize_attempts < 3)) {
|
||
resize_attempts++;
|
||
int n_width = extra_x + t_window_width - (t_window_width % char_width);
|
||
int n_height = extra_y + t_window_height - (t_window_height % char_height);
|
||
yutani_window_resize_offer(yctx, window, n_width, n_height);
|
||
return;
|
||
}
|
||
|
||
resize_attempts = 0;
|
||
|
||
yutani_window_resize_accept(yctx, window, width, height);
|
||
window_width = window->width - extra_x;
|
||
window_height = window->height - extra_y;
|
||
|
||
reinit_graphics_yutani(ctx, window);
|
||
reinit(1);
|
||
|
||
yutani_window_resize_done(yctx, window);
|
||
yutani_flip(yctx, window);
|
||
}
|
||
|
||
void mouse_event(int button, int x, int y) {
|
||
char buf[7];
|
||
sprintf(buf, "\033[M%c%c%c", button + 32, x + 33, y + 33);
|
||
handle_input_s(buf);
|
||
}
|
||
|
||
void * handle_incoming(void) {
|
||
|
||
yutani_msg_t * m = yutani_poll(yctx);
|
||
if (m) {
|
||
switch (m->type) {
|
||
case YUTANI_MSG_KEY_EVENT:
|
||
{
|
||
struct yutani_msg_key_event * ke = (void*)m->data;
|
||
int ret = (ke->event.action == KEY_ACTION_DOWN) && (ke->event.key);
|
||
key_event(ret, &ke->event);
|
||
}
|
||
break;
|
||
case YUTANI_MSG_WINDOW_FOCUS_CHANGE:
|
||
{
|
||
struct yutani_msg_window_focus_change * wf = (void*)m->data;
|
||
yutani_window_t * win = hashmap_get(yctx->windows, (void*)wf->wid);
|
||
if (win) {
|
||
win->focused = wf->focused;
|
||
render_decors();
|
||
}
|
||
}
|
||
break;
|
||
case YUTANI_MSG_SESSION_END:
|
||
{
|
||
kill(child_pid, SIGKILL);
|
||
exit_application = 1;
|
||
}
|
||
break;
|
||
case YUTANI_MSG_RESIZE_OFFER:
|
||
{
|
||
struct yutani_msg_window_resize * wr = (void*)m->data;
|
||
resize_finish(wr->width, wr->height);
|
||
}
|
||
break;
|
||
case YUTANI_MSG_WINDOW_MOUSE_EVENT:
|
||
{
|
||
struct yutani_msg_window_mouse_event * me = (void*)m->data;
|
||
if (!_no_frame) {
|
||
if (decor_handle_event(yctx, m) == DECOR_CLOSE) {
|
||
kill(child_pid, SIGKILL);
|
||
exit_application = 1;
|
||
break;
|
||
}
|
||
}
|
||
if (me->new_x < 0 || me->new_x >= (int)window_width || me->new_y < 0 || me->new_y >= (int)window_height) {
|
||
break;
|
||
}
|
||
/* Map Cursor Action */
|
||
if (ansi_state->mouse_on) {
|
||
int new_x = me->new_x;
|
||
int new_y = me->new_y;
|
||
if (!_no_frame) {
|
||
new_x -= decor_left_width;
|
||
new_y -= decor_top_height;
|
||
}
|
||
/* Convert from coordinate to cell positon */
|
||
new_x /= char_width;
|
||
new_y /= char_height;
|
||
|
||
if (me->buttons & YUTANI_MOUSE_SCROLL_UP) {
|
||
mouse_event(32+32, new_x, new_y);
|
||
} else if (me->buttons & YUTANI_MOUSE_SCROLL_DOWN) {
|
||
mouse_event(32+32+1, new_x, new_y);
|
||
}
|
||
|
||
if (me->buttons != button_state) {
|
||
/* Figure out what changed */
|
||
if (me->buttons & YUTANI_MOUSE_BUTTON_LEFT && !(button_state & YUTANI_MOUSE_BUTTON_LEFT)) mouse_event(0, new_x, new_y);
|
||
if (me->buttons & YUTANI_MOUSE_BUTTON_MIDDLE && !(button_state & YUTANI_MOUSE_BUTTON_MIDDLE)) mouse_event(1, new_x, new_y);
|
||
if (me->buttons & YUTANI_MOUSE_BUTTON_RIGHT && !(button_state & YUTANI_MOUSE_BUTTON_RIGHT)) mouse_event(2, new_x, new_y);
|
||
if (!(me->buttons & YUTANI_MOUSE_BUTTON_LEFT) && button_state & YUTANI_MOUSE_BUTTON_LEFT) mouse_event(3, new_x, new_y);
|
||
if (!(me->buttons & YUTANI_MOUSE_BUTTON_MIDDLE) && button_state & YUTANI_MOUSE_BUTTON_MIDDLE) mouse_event(3, new_x, new_y);
|
||
if (!(me->buttons & YUTANI_MOUSE_BUTTON_RIGHT) && button_state & YUTANI_MOUSE_BUTTON_RIGHT) mouse_event(3, new_x, new_y);
|
||
last_mouse_x = new_x;
|
||
last_mouse_y = new_y;
|
||
button_state = me->buttons;
|
||
} else if (ansi_state->mouse_on == 2) {
|
||
/* Report motion for pressed buttons */
|
||
if (last_mouse_x == new_x && last_mouse_y == new_y) break;
|
||
if (button_state & YUTANI_MOUSE_BUTTON_LEFT) mouse_event(32, new_x, new_y);
|
||
if (button_state & YUTANI_MOUSE_BUTTON_MIDDLE) mouse_event(33, new_x, new_y);
|
||
if (button_state & YUTANI_MOUSE_BUTTON_RIGHT) mouse_event(34, new_x, new_y);
|
||
last_mouse_x = new_x;
|
||
last_mouse_y = new_y;
|
||
}
|
||
} else {
|
||
if (me->buttons & YUTANI_MOUSE_SCROLL_UP) {
|
||
scroll_up(5);
|
||
} else if (me->buttons & YUTANI_MOUSE_SCROLL_DOWN) {
|
||
scroll_down(5);
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
free(m);
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
void maybe_flip_cursor(void) {
|
||
uint64_t ticks = get_ticks();
|
||
if (ticks > mouse_ticks + 600000LL) {
|
||
mouse_ticks = ticks;
|
||
flip_cursor();
|
||
}
|
||
}
|
||
|
||
int main(int argc, char ** argv) {
|
||
|
||
_use_freetype = 0;
|
||
_login_shell = 0;
|
||
_fullscreen = 0;
|
||
_no_frame = 0;
|
||
|
||
window_width = char_width * 80;
|
||
window_height = char_height * 24;
|
||
|
||
#if 0
|
||
static struct option long_opts[] = {
|
||
{"fullscreen", no_argument, 0, 'F'},
|
||
{"bitmap", no_argument, 0, 'b'},
|
||
{"login", no_argument, 0, 'l'},
|
||
{"help", no_argument, 0, 'h'},
|
||
{"kernel", no_argument, 0, 'k'},
|
||
{"grid", no_argument, 0, 'x'},
|
||
{"no-frame", no_argument, 0, 'n'},
|
||
{"scale", required_argument, 0, 's'},
|
||
{"geometry", required_argument, 0, 'g'},
|
||
{0,0,0,0}
|
||
};
|
||
|
||
/* Read some arguments */
|
||
int index, c;
|
||
while ((c = getopt_long(argc, argv, "bhxnFlks:g:", long_opts, &index)) != -1) {
|
||
if (!c) {
|
||
if (long_opts[index].flag == 0) {
|
||
c = long_opts[index].val;
|
||
}
|
||
}
|
||
switch (c) {
|
||
case 'k':
|
||
_force_kernel = 1;
|
||
break;
|
||
case 'x':
|
||
_free_size = 0;
|
||
break;
|
||
case 'l':
|
||
_login_shell = 1;
|
||
break;
|
||
case 'n':
|
||
_no_frame = 1;
|
||
break;
|
||
case 'F':
|
||
_fullscreen = 1;
|
||
_no_frame = 1;
|
||
break;
|
||
case 'b':
|
||
_use_freetype = 0;
|
||
break;
|
||
case 'h':
|
||
usage(argv);
|
||
return 0;
|
||
break;
|
||
case 's':
|
||
scale_fonts = 1;
|
||
font_scaling = atof(optarg);
|
||
break;
|
||
case 'g':
|
||
{
|
||
char * c = strstr(optarg, "x");
|
||
if (c) {
|
||
*c = '\0';
|
||
c++;
|
||
window_width = atoi(optarg);
|
||
window_height = atoi(c);
|
||
}
|
||
}
|
||
break;
|
||
case '?':
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
// XXX
|
||
//putenv("TERM=toaru");
|
||
#if 1
|
||
char * _env = malloc(strlen("TERM=toaru"));
|
||
sprintf(_env, "TERM=toaru");
|
||
size_t env_c = 0;
|
||
for (char ** env = environ; *env; env++, env_c++);
|
||
char ** env_new = malloc(sizeof(char *) * (env_c + 2));
|
||
int set_env = 0;
|
||
for (size_t i = 0; i < env_c; ++i) {
|
||
if (strstr(environ[i], "TERM=") == environ[i]) {
|
||
env_new[i] = _env;
|
||
set_env = 1;
|
||
} else {
|
||
env_new[i] = environ[i];
|
||
}
|
||
}
|
||
if (!set_env) {
|
||
env_new[env_c] = _env;
|
||
env_c++;
|
||
}
|
||
env_new[env_c] = NULL;
|
||
environ = env_new;
|
||
#endif
|
||
|
||
/* Initialize the windowing library */
|
||
yctx = yutani_init();
|
||
|
||
if (_fullscreen) {
|
||
window_width = yctx->display_width;
|
||
window_height = yctx->display_height;
|
||
}
|
||
|
||
if (_no_frame) {
|
||
window = yutani_window_create(yctx, window_width, window_height);
|
||
} else {
|
||
init_decorations();
|
||
window = yutani_window_create(yctx, window_width + decor_left_width + decor_right_width, window_height + decor_top_height + decor_bottom_height);
|
||
}
|
||
|
||
if (_fullscreen) {
|
||
yutani_set_stack(yctx, window, YUTANI_ZORDER_BOTTOM);
|
||
window->focused = 1;
|
||
} else {
|
||
window->focused = 0;
|
||
}
|
||
|
||
/* Initialize the graphics context */
|
||
ctx = init_graphics_yutani(window);
|
||
|
||
/* Clear to black */
|
||
draw_fill(ctx, rgba(0,0,0,0));
|
||
|
||
yutani_window_move(yctx, window, yctx->display_width / 2 - window->width / 2, yctx->display_height / 2 - window->height / 2);
|
||
|
||
if (_use_freetype) {
|
||
#if 0
|
||
int error;
|
||
error = FT_Init_FreeType(&library);
|
||
if (error) return 1;
|
||
|
||
char * font = NULL;
|
||
size_t s;
|
||
|
||
/* XXX Use shmemfont library */
|
||
|
||
font = loadMemFont("/usr/share/fonts/DejaVuSansMono.ttf", "monospace", &s);
|
||
error = FT_New_Memory_Face(library, font, s, 0, &face); if (error) return 1;
|
||
|
||
font = loadMemFont("/usr/share/fonts/DejaVuSansMono-Bold.ttf", "monospace.bold", &s);
|
||
error = FT_New_Memory_Face(library, font, s, 0, &face_bold); if (error) return 1;
|
||
|
||
font = loadMemFont("/usr/share/fonts/DejaVuSansMono-Oblique.ttf", "monospace.italic", &s);
|
||
error = FT_New_Memory_Face(library, font, s, 0, &face_italic); if (error) return 1;
|
||
|
||
font = loadMemFont("/usr/share/fonts/DejaVuSansMono-BoldOblique.ttf", "monospace.bolditalic", &s);
|
||
error = FT_New_Memory_Face(library, font, s, 0, &face_bold_italic); if (error) return 1;
|
||
|
||
error = FT_New_Face(library, "/usr/share/fonts/VLGothic.ttf", 0, &face_extra);
|
||
|
||
error = FT_New_Face(library, "/usr/share/fonts/Symbola.ttf", 0, &face_symbol);
|
||
|
||
font = loadMemFont("/usr/share/fonts/DejaVuSans.ttf", "sans-serif", &s);
|
||
error = FT_New_Memory_Face(library, font, s, 0, &face_variable); if (error) return 1;
|
||
|
||
#endif
|
||
}
|
||
|
||
syscall_openpty(&fd_master, &fd_slave, NULL, NULL, NULL);
|
||
|
||
terminal = fdopen(fd_slave, "w");
|
||
|
||
reinit(0);
|
||
|
||
fflush(stdin);
|
||
|
||
pid_t pid = getpid();
|
||
pid_t f = fork();
|
||
|
||
if (getpid() != pid) {
|
||
dup2(fd_slave, 0);
|
||
dup2(fd_slave, 1);
|
||
dup2(fd_slave, 2);
|
||
|
||
#if 0
|
||
if (argv[optind] != NULL) {
|
||
char * tokens[] = {argv[optind], NULL};
|
||
int i = execvp(tokens[0], tokens);
|
||
fprintf(stderr, "Failed to launch requested startup application.\n");
|
||
} else {
|
||
#endif
|
||
if (_login_shell) {
|
||
char * tokens[] = {"/bin/login",NULL};
|
||
execvp(tokens[0], tokens);
|
||
exit(1);
|
||
} else {
|
||
char * shell = getenv("SHELL");
|
||
if (!shell) shell = "/bin/sh"; /* fallback */
|
||
char * tokens[] = {shell,NULL};
|
||
execvp(tokens[0], tokens);
|
||
exit(1);
|
||
}
|
||
#if 0
|
||
}
|
||
#endif
|
||
|
||
exit_application = 1;
|
||
|
||
return 1;
|
||
} else {
|
||
|
||
if (_force_kernel) {
|
||
/* Request kernel output to this terminal */
|
||
//syscall_system_function(4, (char **)fd_slave);
|
||
}
|
||
|
||
child_pid = f;
|
||
|
||
int fds[2] = {fileno(yctx->sock), fd_master};
|
||
|
||
unsigned char buf[1024];
|
||
while (!exit_application) {
|
||
|
||
int index = syscall_fswait2(2,fds,200);
|
||
|
||
check_for_exit();
|
||
|
||
if (index == 1) {
|
||
maybe_flip_cursor();
|
||
int r = read(fd_master, buf, 1024);
|
||
for (int i = 0; i < r; ++i) {
|
||
ansi_put(ansi_state, buf[i]);
|
||
}
|
||
display_flip();
|
||
} else if (index == 0) {
|
||
maybe_flip_cursor();
|
||
handle_incoming();
|
||
} else if (index == 2) {
|
||
maybe_flip_cursor();
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
//yutani_close(yctx, window);
|
||
|
||
return 0;
|
||
}
|