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fcdec09eaf
toaruos/userspace/gui/terminal/terminal.c
Kevin Lange fcdec09eaf Unfocused terminal cursor box
2013-05-04 23:22:54 -07:00

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/* vim: tabstop=4 shiftwidth=4 noexpandtab
*
* Terminal Emulator
*
* Graphical terminal emulator.
*
* Provides a number of features:
* - Windowed and full screen modes
* - Antialiased fonts
* - Built-in fallback bitmap font
* - ANSI escape support
* - 256 colors
* - [mouse support; incomplete]
*/
#include <stdio.h>
#include <stdint.h>
#include <syscall.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <getopt.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_CACHE_H
#include <wchar.h>
#include "lib/wcwidth.h"
#include "lib/utf8decode.h"
#include "../kernel/include/mouse.h"
#include "lib/graphics.h"
#include "lib/window.h"
#include "lib/decorations.h"
#include "lib/pthread.h"
#include "lib/kbd.h"
#include "terminal-palette.h"
#include "terminal-font.h"
/*
* If you're working on updating the terminal's handling of escapes,
* switch this option to 1 to have it print an escaped bit of output
* to the serial line, so you can examine exactly which codes were
* processed.
*/
#define DEBUG_TERMINAL_WITH_SERIAL 0
#define USE_BELL 0
static int volatile lock = 0;
static void spin_lock(int volatile * lock) {
while(__sync_lock_test_and_set(lock, 0x01)) {
syscall_yield();
}
}
static void spin_unlock(int volatile * lock) {
__sync_lock_release(lock);
}
/* A terminal cell represents a single character on screen */
typedef struct _terminal_cell {
uint16_t c; /* codepoint */
uint32_t fg; /* background indexed color */
uint32_t bg; /* foreground indexed color */
uint8_t flags; /* other flags */
} __attribute__((packed)) t_cell;
/* master and slave pty descriptors */
static int fd_master, fd_slave;
static FILE * terminal;
int scale_fonts = 0; /* Whether fonts should be scaled */
float font_scaling = 1.0; /* How much they should be scaled by */
uint16_t term_width = 0; /* Width of the terminal (in cells) */
uint16_t term_height = 0; /* Height of the terminal (in cells) */
uint16_t font_size = 13; /* Font size according to Freetype */
uint16_t char_width = 8; /* Width of a cell in pixels */
uint16_t char_height = 12; /* Height of a cell in pixels */
uint16_t char_offset = 0; /* Offset of the font within the cell */
uint16_t csr_x = 0; /* Cursor X */
uint16_t csr_y = 0; /* Cursor Y */
t_cell * term_buffer = NULL; /* The terminal cell buffer */
uint32_t current_fg = 7; /* Current foreground color */
uint32_t current_bg = 0; /* Current background color */
uint8_t cursor_on = 1; /* Whether or not the cursor should be rendered */
window_t * window = NULL; /* GUI window */
uint8_t _windowed = 0; /* Whether or not we are running in the GUI enviornment */
uint8_t _vga_mode = 0; /* Whether or not we are in VGA mode XXX should be combined ^ */
uint8_t _login_shell = 0; /* Whether we're going to display a login shell or not */
uint8_t _use_freetype = 0; /* Whether we should use freetype or not XXX seriously, how about some flags */
uint8_t _unbuffered = 0;
uint8_t _force_kernel = 0;
uint8_t _hold_out = 0; /* state indicator on last cell ignore \n */
void reinit(); /* Defined way further down */
/* Cursor bink timer */
static unsigned int timer_tick = 0;
#define TIMER_TICK 40
/* Mouse control */
#define MOUSE_SCALE 6
int32_t mouse_x;
int32_t mouse_y;
/* Some GUI-only options */
uint16_t window_width = 640;
uint16_t window_height = 408;
#define TERMINAL_TITLE_SIZE 512
char terminal_title[TERMINAL_TITLE_SIZE];
size_t terminal_title_length = 0;
gfx_context_t * ctx;
volatile int needs_redraw = 1;
static void render_decors();
void term_clear();
void resize_callback(window_t * window);
void dump_buffer();
/* Trigger to exit the terminal when the child process dies or
* we otherwise receive an exit signal */
volatile int exit_application = 0;
/* Triggers escape mode. */
#define ANSI_ESCAPE 27
/* Escape verify */
#define ANSI_BRACKET '['
#define ANSI_BRACKET_RIGHT ']'
/* Anything in this range (should) exit escape mode. */
#define ANSI_LOW 'A'
#define ANSI_HIGH 'z'
/* Escape commands */
#define ANSI_CUU 'A' /* CUrsor Up */
#define ANSI_CUD 'B' /* CUrsor Down */
#define ANSI_CUF 'C' /* CUrsor Forward */
#define ANSI_CUB 'D' /* CUrsor Back */
#define ANSI_CNL 'E' /* Cursor Next Line */
#define ANSI_CPL 'F' /* Cursor Previous Line */
#define ANSI_CHA 'G' /* Cursor Horizontal Absolute */
#define ANSI_CUP 'H' /* CUrsor Position */
#define ANSI_ED 'J' /* Erase Data */
#define ANSI_EL 'K' /* Erase in Line */
#define ANSI_SU 'S' /* Scroll Up */
#define ANSI_SD 'T' /* Scroll Down */
#define ANSI_HVP 'f' /* Horizontal & Vertical Pos. XXX: SAME AS CUP */
#define ANSI_SGR 'm' /* Select Graphic Rendition */
#define ANSI_DSR 'n' /* Device Status Report XXX: Push to kgets() buffer? */
#define ANSI_SCP 's' /* Save Cursor Position */
#define ANSI_RCP 'u' /* Restore Cursor Position */
#define ANSI_HIDE 'l' /* DECTCEM - Hide Cursor */
#define ANSI_SHOW 'h' /* DECTCEM - Show Cursor */
/* Display flags */
#define ANSI_BOLD 0x01
#define ANSI_UNDERLINE 0x02
#define ANSI_ITALIC 0x04
#define ANSI_EXTRA 0x08 /* Character should use "extra" font (Japanese) */
#define ANSI_SPECBG 0x10
#define ANSI_BORDER 0x20
#define ANSI_WIDE 0x40 /* Character is double width */
#define ANSI_CROSS 0x80 /* And that's all I'm going to support */
/* Default color settings */
#define DEFAULT_FG 0x07 /* Index of default foreground */
#define DEFAULT_BG 0x10 /* Index of default background */
#define DEFAULT_FLAGS 0x00 /* Default flags for a cell */
#define DEFAULT_OPAC 0xF2 /* For background, default transparency */
#define ANSI_EXT_IOCTL 'z' /* These are special escapes only we support */
#define MAX_ARGS 1024
/* Returns the lower of two shorts */
uint16_t min(uint16_t a, uint16_t b) {
return (a < b) ? a : b;
}
/* Returns the higher of two shorts */
uint16_t max(uint16_t a, uint16_t b) {
return (a > b) ? a : b;
}
/* Performs low-level port I/O; used for VGA initialization */
void outb(unsigned char _data, unsigned short _port) {
__asm__ __volatile__ ("outb %1, %0" : : "dN" (_port), "a" (_data));
}
/* State machine status */
static struct _ansi_state {
uint16_t x ; /* Current cursor location */
uint16_t y ; /* " " " */
uint16_t save_x;
uint16_t save_y;
uint32_t width ;
uint32_t height;
uint32_t fg ; /* Current foreground color */
uint32_t bg ; /* Current background color */
uint8_t flags ; /* Bright, etc. */
uint8_t escape; /* Escape status */
uint8_t local_echo;
uint8_t buflen; /* Buffer Length */
char buffer[100]; /* Previous buffer */
} state;
void (*ansi_writer)(char) = NULL;
void (*ansi_set_color)(uint32_t, uint32_t) = NULL;
void (*ansi_set_csr)(int,int) = NULL;
int (*ansi_get_csr_x)(void) = NULL;
int (*ansi_get_csr_y)(void) = NULL;
void (*ansi_set_cell)(int,int,uint16_t) = NULL;
void (*ansi_cls)(int) = NULL;
void (*ansi_scroll)(int) = NULL;
void (*redraw_cursor)(void) = NULL;
/* Stuffs a string into the stdin of the terminal's child process
* Useful for things like the ANSI DSR command. */
void input_buffer_stuff(char * str) {
size_t s = strlen(str) + 1;
write(fd_master, str, s);
}
/* Write the contents of the buffer, as they were all non-escaped data. */
void ansi_dump_buffer() {
for (int i = 0; i < state.buflen; ++i) {
ansi_writer(state.buffer[i]);
}
}
/* Add to the internal buffer for the ANSI parser */
void ansi_buf_add(char c) {
state.buffer[state.buflen] = c;
state.buflen++;
state.buffer[state.buflen] = '\0';
}
static void _ansi_put(char c);
static void ansi_put(char c) {
spin_lock(&lock);
_ansi_put(c);
spin_unlock(&lock);
}
static void _ansi_put(char c) {
switch (state.escape) {
case 0:
/* We are not escaped, check for escape character */
if (c == ANSI_ESCAPE) {
/*
* Enable escape mode, setup a buffer,
* fill the buffer, get out of here.
*/
state.escape = 1;
state.buflen = 0;
ansi_buf_add(c);
return;
} else if (c == 0) {
return;
} else {
ansi_writer(c);
}
break;
case 1:
/* We're ready for [ */
if (c == ANSI_BRACKET) {
state.escape = 2;
ansi_buf_add(c);
} else if (c == ANSI_BRACKET_RIGHT) {
state.escape = 3;
ansi_buf_add(c);
} else {
/* This isn't a bracket, we're not actually escaped!
* Get out of here! */
ansi_dump_buffer();
ansi_writer(c);
state.escape = 0;
state.buflen = 0;
return;
}
break;
case 2:
if (c >= ANSI_LOW && c <= ANSI_HIGH) {
/* Woah, woah, let's see here. */
char * pch; /* tokenizer pointer */
char * save; /* strtok_r pointer */
char * argv[MAX_ARGS]; /* escape arguments */
/* Get rid of the front of the buffer */
strtok_r(state.buffer,"[",&save);
pch = strtok_r(NULL,";",&save);
/* argc = Number of arguments, obviously */
int argc = 0;
while (pch != NULL) {
argv[argc] = (char *)pch;
++argc;
if (argc > MAX_ARGS)
break;
pch = strtok_r(NULL,";",&save);
}
/* Alright, let's do this */
switch (c) {
case ANSI_EXT_IOCTL:
{
if (argc > 0) {
int arg = atoi(argv[0]);
switch (arg) {
case 1:
redraw_cursor();
break;
case 1001:
/* Local Echo Off */
state.local_echo = 0;
break;
case 1002:
/* Local Echo On */
state.local_echo = 1;
break;
case 1555:
if (argc > 1) {
scale_fonts = 1;
font_scaling = atof(argv[1]);
reinit();
}
break;
case 1560:
_unbuffered = 1;
dump_buffer();
break;
case 1561:
_unbuffered = 0;
break;
case 2000:
if (_windowed) {
window_disable_alpha(window);
}
break;
case 2001:
if (_windowed) {
window_enable_alpha(window);
}
break;
case 3000:
if (_windowed) {
if (argc > 2) {
uint16_t win_id = window->bufid;
int width = atoi(argv[1]) * char_width + decor_left_width + decor_right_width;
int height = atoi(argv[2]) * char_height + decor_top_height + decor_bottom_height;
window_resize(window, window->x, window->y, width, height);
resize_callback(window);
}
}
default:
break;
}
}
}
break;
case ANSI_SCP:
{
state.save_x = ansi_get_csr_x();
state.save_y = ansi_get_csr_y();
}
break;
case ANSI_RCP:
{
ansi_set_csr(state.save_x, state.save_y);
}
break;
case ANSI_SGR:
/* Set Graphics Rendition */
if (argc == 0) {
/* Default = 0 */
argv[0] = "0";
argc = 1;
}
for (int i = 0; i < argc; ++i) {
int arg = atoi(argv[i]);
if (arg >= 100 && arg < 110) {
/* Bright background */
state.bg = 8 + (arg - 100);
state.flags |= ANSI_SPECBG;
} else if (arg >= 90 && arg < 100) {
/* Bright foreground */
state.fg = 8 + (arg - 90);
} else if (arg >= 40 && arg < 49) {
/* Set background */
state.bg = arg - 40;
state.flags |= ANSI_SPECBG;
} else if (arg == 49) {
state.bg = DEFAULT_BG;
state.flags &= ~ANSI_SPECBG;
} else if (arg >= 30 && arg < 39) {
/* Set Foreground */
state.fg = arg - 30;
} else if (arg == 39) {
/* Default Foreground */
state.fg = 7;
} else if (arg == 9) {
/* X-OUT */
state.flags |= ANSI_CROSS;
} else if (arg == 7) {
/* INVERT: Swap foreground / background */
uint32_t temp = state.fg;
state.fg = state.bg;
state.bg = temp;
} else if (arg == 6) {
/* proprietary RGBA color support */
if (i == 0) { break; }
if (i < argc) {
int r = atoi(argv[i+1]);
int g = atoi(argv[i+2]);
int b = atoi(argv[i+3]);
int a = atoi(argv[i+4]);
if (a == 0) a = 1; /* Override a = 0 */
uint32_t c = rgba(r,g,b,a);
if (atoi(argv[i-1]) == 48) {
state.bg = c;
state.flags |= ANSI_SPECBG;
} else if (atoi(argv[i-1]) == 38) {
state.fg = c;
}
i += 4;
}
} else if (arg == 5) {
/* Supposed to be blink; instead, support X-term 256 colors */
if (i == 0) { break; }
if (i < argc) {
if (atoi(argv[i-1]) == 48) {
/* Background to i+1 */
state.bg = atoi(argv[i+1]);
state.flags |= ANSI_SPECBG;
} else if (atoi(argv[i-1]) == 38) {
/* Foreground to i+1 */
state.fg = atoi(argv[i+1]);
}
++i;
}
} else if (arg == 4) {
/* UNDERLINE */
state.flags |= ANSI_UNDERLINE;
} else if (arg == 3) {
/* ITALIC: Oblique */
state.flags |= ANSI_ITALIC;
} else if (arg == 2) {
/* Konsole RGB color support */
if (i == 0) { break; }
if (i < argc - 2) {
int r = atoi(argv[i+1]);
int g = atoi(argv[i+2]);
int b = atoi(argv[i+3]);
uint32_t c = rgb(r,g,b);
if (atoi(argv[i-1]) == 48) {
/* Background to i+1 */
state.bg = c;
state.flags |= ANSI_SPECBG;
} else if (atoi(argv[i-1]) == 38) {
/* Foreground to i+1 */
state.fg = c;
}
i += 3;
}
} else if (arg == 1) {
/* BOLD/BRIGHT: Brighten the output color */
state.flags |= ANSI_BOLD;
} else if (arg == 0) {
/* Reset everything */
state.fg = DEFAULT_FG;
state.bg = DEFAULT_BG;
state.flags = DEFAULT_FLAGS;
}
}
break;
case ANSI_SHOW:
if (argc > 0) {
if (!strcmp(argv[0], "?1049")) {
ansi_cls(2);
ansi_set_csr(0,0);
}
}
break;
case ANSI_CUF:
{
int i = 1;
if (argc) {
i = atoi(argv[0]);
}
ansi_set_csr(min(ansi_get_csr_x() + i, state.width - 1), ansi_get_csr_y());
}
break;
case ANSI_CUU:
{
int i = 1;
if (argc) {
i = atoi(argv[0]);
}
ansi_set_csr(ansi_get_csr_x(), max(ansi_get_csr_y() - i, 0));
}
break;
case ANSI_CUD:
{
int i = 1;
if (argc) {
i = atoi(argv[0]);
}
ansi_set_csr(ansi_get_csr_x(), min(ansi_get_csr_y() + i, state.height - 1));
}
break;
case ANSI_CUB:
{
int i = 1;
if (argc) {
i = atoi(argv[0]);
}
ansi_set_csr(max(ansi_get_csr_x() - i,0), ansi_get_csr_y());
}
break;
case ANSI_CHA:
if (argc < 1) {
ansi_set_csr(0,ansi_get_csr_y());
} else {
ansi_set_csr(min(max(atoi(argv[0]), 1), state.width) - 1, ansi_get_csr_y());
}
break;
case ANSI_CUP:
if (argc < 2) {
ansi_set_csr(0,0);
} else {
ansi_set_csr(min(max(atoi(argv[1]), 1), state.width) - 1, min(max(atoi(argv[0]), 1), state.height) - 1);
}
break;
case ANSI_ED:
if (argc < 1) {
ansi_cls(0);
} else {
ansi_cls(atoi(argv[0]));
}
break;
case ANSI_EL:
{
int what = 0, x = 0, y = 0;
if (argc >= 1) {
what = atoi(argv[0]);
}
if (what == 0) {
x = ansi_get_csr_x();
y = state.width;
} else if (what == 1) {
x = 0;
y = ansi_get_csr_x();
} else if (what == 2) {
x = 0;
y = state.width;
}
for (int i = x; i < y; ++i) {
ansi_set_cell(i, ansi_get_csr_y(), ' ');
}
}
break;
case ANSI_DSR:
{
char out[24];
sprintf(out, "\033[%d;%dR", csr_y + 1, csr_x + 1);
input_buffer_stuff(out);
}
break;
case ANSI_SU:
{
int how_many = 1;
if (argc > 0) {
how_many = atoi(argv[0]);
}
ansi_scroll(how_many);
}
break;
case ANSI_SD:
{
int how_many = 1;
if (argc > 0) {
how_many = atoi(argv[0]);
}
ansi_scroll(-how_many);
}
break;
case 'X':
{
int how_many = 1;
if (argc > 0) {
how_many = atoi(argv[0]);
}
for (int i = 0; i < how_many; ++i) {
ansi_writer(' ');
}
}
break;
case 'd':
if (argc < 1) {
ansi_set_csr(ansi_get_csr_x(), 0);
} else {
ansi_set_csr(ansi_get_csr_x(), atoi(argv[0]) - 1);
}
break;
default:
/* Meh */
break;
}
/* Set the states */
if (state.flags & ANSI_BOLD && state.fg < 9) {
ansi_set_color(state.fg % 8 + 8, state.bg);
} else {
ansi_set_color(state.fg, state.bg);
}
/* Clear out the buffer */
state.buflen = 0;
state.escape = 0;
return;
} else {
/* Still escaped */
ansi_buf_add(c);
}
break;
case 3:
if (c == '\007') {
/* Tokenize on semicolons, like we always do */
char * pch; /* tokenizer pointer */
char * save; /* strtok_r pointer */
char * argv[MAX_ARGS]; /* escape arguments */
/* Get rid of the front of the buffer */
strtok_r(state.buffer,"]",&save);
pch = strtok_r(NULL,";",&save);
/* argc = Number of arguments, obviously */
int argc = 0;
while (pch != NULL) {
argv[argc] = (char *)pch;
++argc;
if (argc > MAX_ARGS) break;
pch = strtok_r(NULL,";",&save);
}
/* Start testing the first argument for what command to use */
if (argv[0]) {
if (!strcmp(argv[0], "1")) {
if (argc > 1) {
int len = min(TERMINAL_TITLE_SIZE, strlen(argv[1])+1);
memcpy(terminal_title, argv[1], len);
terminal_title[len-1] = '\0';
terminal_title_length = len - 1;
render_decors();
}
} /* Currently, no other options */
}
/* Clear out the buffer */
state.buflen = 0;
state.escape = 0;
return;
} else {
/* Still escaped */
ansi_buf_add(c);
}
break;
}
}
void ansi_init(void (*writer)(char), int w, int y, void (*setcolor)(uint32_t, uint32_t),
void (*setcsr)(int,int), int (*getcsrx)(void), int (*getcsry)(void), void (*setcell)(int,int,uint16_t),
void (*cls)(int), void (*redraw_csr)(void), void (*scroll_term)(int)) {
ansi_writer = writer;
ansi_set_color = setcolor;
ansi_set_csr = setcsr;
ansi_get_csr_x = getcsrx;
ansi_get_csr_y = getcsry;
ansi_set_cell = setcell;
ansi_cls = cls;
redraw_cursor = redraw_csr;
ansi_scroll = scroll_term;
/* Terminal Defaults */
state.fg = DEFAULT_FG; /* Light grey */
state.bg = DEFAULT_BG; /* Black */
state.flags = DEFAULT_FLAGS; /* Nothing fancy*/
state.width = w;
state.height = y;
state.local_echo = 1;
ansi_set_color(state.fg, state.bg);
}
static void render_decors() {
if (_windowed) {
if (terminal_title_length) {
render_decorations(window, ctx, terminal_title);
} else {
render_decorations(window, ctx, "Terminal");
}
}
}
static inline void term_set_point(uint16_t x, uint16_t y, uint32_t color ) {
if (_windowed) {
GFX(ctx, (x+decor_left_width),(y+decor_top_height)) = color;
} else {
if (ctx->depth == 32) {
GFX(ctx, x,y) = color;
} else if (ctx->depth == 24) {
ctx->backbuffer[((y) * ctx->width + x) * 3 + 2] = _RED(color);
ctx->backbuffer[((y) * ctx->width + x) * 3 + 1] = _GRE(color);
ctx->backbuffer[((y) * ctx->width + x) * 3 + 0] = _BLU(color);
}
}
}
/* FreeType text rendering */
FT_Library library;
FT_Face face;
FT_Face face_bold;
FT_Face face_italic;
FT_Face face_bold_italic;
FT_Face face_extra;
FT_GlyphSlot slot;
FT_UInt glyph_index;
void drawChar(FT_Bitmap * bitmap, int x, int y, uint32_t fg, uint32_t bg) {
int i, j, p, q;
int x_max = x + bitmap->width;
int y_max = y + bitmap->rows;
for (j = y, q = 0; j < y_max; j++, q++) {
for ( i = x, p = 0; i < x_max; i++, p++) {
uint32_t a = _ALP(fg);
a = (a * bitmap->buffer[q * bitmap->width + p]) / 255;
uint32_t tmp = rgba(_RED(fg),_GRE(fg),_BLU(fg),a);
term_set_point(i,j, alpha_blend_rgba(premultiply(bg), premultiply(tmp)));
}
}
}
unsigned short * textmemptr = (unsigned short *)0xB8000;
void placech(unsigned char c, int x, int y, int attr) {
unsigned short *where;
unsigned att = attr << 8;
where = textmemptr + (y * 80 + x);
*where = c | att;
}
/* ANSI-to-VGA */
char vga_to_ansi[] = {
0, 4, 2, 6, 1, 5, 3, 7,
8,12,10,14, 9,13,11,15
};
void resize_callback(window_t * window) {
window_width = window->width - decor_left_width - decor_right_width;
window_height = window->height - decor_top_height - decor_bottom_height;
reinit_graphics_window(ctx, window);
reinit();
}
void focus_callback(window_t * window) {
render_decors();
}
void
term_write_char(
uint32_t val,
uint16_t x,
uint16_t y,
uint32_t fg,
uint32_t bg,
uint8_t flags
) {
uint32_t _fg, _bg;
if (_vga_mode) {
if (fg > 15) fg = 7;
if (bg > 15) bg = 0;
placech(val, x, y, (vga_to_ansi[fg] & 0xF) | (vga_to_ansi[bg] << 4));
/* Disable / update cursor? We have our own cursor... */
} else {
if (fg < PALETTE_COLORS) {
_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 |= DEFAULT_OPAC << 24;
}
} else {
_bg = bg;
}
if (_use_freetype) {
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;
}
int pen_x = x;
int pen_y = y + char_offset;
int error;
FT_Face * _font = NULL;
if (flags & ANSI_EXTRA) {
_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 == 0) {
glyph_index = FT_Get_Char_Index(face_extra, val);
_font = &face_extra;
}
error = FT_Load_Glyph(*_font, glyph_index, FT_LOAD_DEFAULT);
if (error) {
fprintf(terminal, "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) {
goto _extra_stuff;
}
}
drawChar(&slot->bitmap, pen_x + slot->bitmap_left, pen_y - slot->bitmap_top, _fg, _bg);
} else {
if (val > 128) {
val = 4;
}
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);
}
}
}
}
_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);
}
}
}
needs_redraw = 1;
}
static void cell_set(uint16_t x, uint16_t y, uint16_t c, uint32_t fg, uint32_t bg, uint8_t flags) {
if (x >= term_width || y >= term_height) return;
t_cell * cell = (t_cell *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(t_cell));
cell->c = c;
cell->fg = fg;
cell->bg = bg;
cell->flags = flags;
}
static void cell_redraw(uint16_t x, uint16_t y) {
if (x >= term_width || y >= term_height) return;
t_cell * cell = (t_cell *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(t_cell));
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, DEFAULT_FG, DEFAULT_BG, 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;
t_cell * cell = (t_cell *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(t_cell));
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, DEFAULT_BG, DEFAULT_FG, 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;
t_cell * cell = (t_cell *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(t_cell));
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, DEFAULT_FG, DEFAULT_BG, 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 (_windowed && !window->focused) {
cell_redraw_box(csr_x, csr_y);
} else {
cell_redraw_inverted(csr_x, csr_y);
}
}
void draw_cursor() {
if (!cursor_on) return;
timer_tick = 0;
render_cursor();
}
void term_redraw_all() {
for (uint16_t y = 0; y < term_height; ++y) {
for (uint16_t x = 0; x < term_width; ++x) {
cell_redraw(x,y);
}
}
}
void term_scroll(int how_much) {
if (how_much >= term_height || -how_much >= term_height) {
term_clear();
return;
}
if (how_much == 0) {
return;
}
if (how_much > 0) {
/* Shift terminal cells one row up */
memmove(term_buffer, (void *)((uintptr_t)term_buffer + sizeof(t_cell) * term_width), sizeof(t_cell) * term_width * (term_height - how_much));
/* Reset the "new" row to clean cells */
memset((void *)((uintptr_t)term_buffer + sizeof(t_cell) * term_width * (term_height - how_much)), 0x0, sizeof(t_cell) * term_width * how_much);
if (_vga_mode) {
/* In VGA mode, we can very quickly just redraw everything */
term_redraw_all();
} else {
/* 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 (_windowed) {
/* Windowed mode must take borders into account */
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 {
/* While fullscreen mode does not */
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_redraw(x, term_height - how_much);
}
}
}
} else {
how_much = -how_much;
/* Shift terminal cells one row up */
memmove((void *)((uintptr_t)term_buffer + sizeof(t_cell) * term_width), term_buffer, sizeof(t_cell) * term_width * (term_height - how_much));
/* Reset the "new" row to clean cells */
memset(term_buffer, 0x0, sizeof(t_cell) * term_width * how_much);
if (_vga_mode) {
/* In VGA mode, we can very quickly just redraw everything */
term_redraw_all();
} else {
uintptr_t dst, src;
size_t siz = char_height * (term_height - how_much) * GFX_W(ctx) * GFX_B(ctx);
if (_windowed) {
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 {
/* While fullscreen mode does not */
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);
}
}
}
}
}
uint32_t codepoint;
uint32_t unicode_state = 0;
int is_wide(uint32_t codepoint) {
if (codepoint < 256) return 0;
return mk_wcwidth_cjk(codepoint) == 2;
}
struct scrollback_row {
unsigned short width;
t_cell cells[];
};
#define MAX_SCROLLBACK 10240
list_t * scrollback_list = NULL;
uint32_t scrollback_offset = 0;
void save_scrollback() {
/* Save the current top row for scrollback */
return;
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(t_cell) * term_width + 20);
row->width = term_width;
for (int i = 0; i < term_width; ++i) {
t_cell * cell = (t_cell *)((uintptr_t)term_buffer + (i) * sizeof(t_cell));
memcpy(&row->cells[i], cell, sizeof(t_cell));
}
list_insert(scrollback_list, row);
}
void redraw_scrollback() {
return;
if (!scrollback_offset) {
term_redraw_all();
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) {
t_cell * cell = (t_cell *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(t_cell));
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, i * char_height, DEFAULT_FG, DEFAULT_BG, 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, DEFAULT_FG, DEFAULT_BG, DEFAULT_FLAGS);
}
}
for (int x = 0; x < width; ++x) {
t_cell * cell = &row->cells[x];
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, DEFAULT_FG, DEFAULT_BG, 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, DEFAULT_FG, DEFAULT_BG, DEFAULT_FLAGS);
}
}
for (int x = 0; x < width; ++x) {
t_cell * cell = &row->cells[x];
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, DEFAULT_FG, DEFAULT_BG, DEFAULT_FLAGS);
} else {
term_write_char(cell->c, x * char_width, y * char_height, cell->fg, cell->bg, cell->flags);
}
}
node = node->prev;
}
}
}
void term_write(char c) {
cell_redraw(csr_x, csr_y);
if (!decode(&unicode_state, &codepoint, (uint8_t)c)) {
if (codepoint > 0xFFFF) {
codepoint = '?';
c = '?';
}
if (c == '\n') {
if (csr_x == 0 && _hold_out) {
_hold_out = 0;
return;
}
csr_x = 0;
++csr_y;
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 == '\r') {
cell_redraw(csr_x,csr_y);
csr_x = 0;
} 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(codepoint);
uint8_t flags = 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, codepoint, 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, state.flags);
cell_redraw(csr_x,csr_y);
cell_redraw(csr_x-1,csr_y);
csr_x++;
}
}
_hold_out = 0;
if (csr_x == term_width) {
_hold_out = 1;
csr_x = 0;
++csr_y;
}
if (csr_y == term_height) {
save_scrollback();
term_scroll(1);
csr_y = term_height - 1;
}
} else if (unicode_state == UTF8_REJECT) {
unicode_state = 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() {
return csr_x;
}
int
term_get_csr_y() {
return csr_y;
}
void
term_set_csr_show(uint8_t 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 (cursor_flipped) {
cell_redraw(csr_x, csr_y);
} else {
render_cursor();
}
cursor_flipped = 1 - cursor_flipped;
}
void
term_set_cell(int x, int y, uint16_t c) {
cell_set(x, y, c, current_fg, current_bg, 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(t_cell));
if (_windowed) {
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, ' ');
}
}
}
char * loadMemFont(char * name, char * ident, size_t * size) {
if (!_windowed) {
FILE * f = fopen(name, "r");
size_t s = 0;
fseek(f, 0, SEEK_END);
s = ftell(f);
fseek(f, 0, SEEK_SET);
char * font = malloc(s);
fread(font, s, 1, f);
fclose(f);
*size = s;
return font;
} else {
size_t s = 0;
int error;
char * font = (char *)syscall_shm_obtain(ident, &s);
*size = s;
return font;
}
}
void setLoaded(int i, int yes) {
uint32_t color = rgb(255,0,0);
if (yes == 1) {
color = rgb(0,255,0);
}
if (yes == 2) {
color = rgb(0,0,255);
}
for (uint32_t j = 0; j < 8; ++j) {
for (uint32_t k = 0; k < 8; ++k) {
term_set_point(i * 8 + j, k, color);
}
}
}
#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;
}
uint32_t child_pid = 0;
int buffer_put(char c) {
if (c == 8) {
/* Backspace */
if (input_collected > 0) {
input_collected--;
input_buffer[input_collected] = '\0';
if (state.local_echo) {
fprintf(terminal, "\010 \010");
fflush(terminal);
}
}
return 0;
}
if (c == 3) {
syscall_send_signal(child_pid, 2);
return 1;
}
if (c < 10 || (c > 10 && c < 32) || c > 126) {
return 0;
}
input_buffer[input_collected] = c;
if (state.local_echo) {
fprintf(terminal, "%c", c);
fflush(terminal);
}
if (input_buffer[input_collected] == '\n') {
input_collected++;
return 1;
}
input_collected++;
if (input_collected == INPUT_SIZE) {
return 1;
}
return 0;
}
void handle_input(char c) {
if (_unbuffered) {
write(fd_master, &c, 1);
} else {
if (buffer_put(c)) {
dump_buffer();
}
}
}
void dump_buffer() {
write(fd_master, input_buffer, input_collected);
clear_input();
}
void handle_input_s(char * c) {
if (_unbuffered) {
write(fd_master, c, strlen(c));
} else {
while (*c) {
handle_input(*c);
c++;
}
}
}
void key_event(int ret, key_event_t * event) {
if (ret) {
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:
handle_input_s("\033[24~");
break;
case KEY_ARROW_UP:
handle_input_s("\033[A");
break;
case KEY_ARROW_DOWN:
handle_input_s("\033[B");
break;
case KEY_ARROW_RIGHT:
handle_input_s("\033[C");
break;
case KEY_ARROW_LEFT:
handle_input_s("\033[D");
break;
case KEY_PAGE_UP:
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
int i = 0;
while (i < 5 && scrollback_list && scrollback_offset < scrollback_list->length) {
scrollback_offset ++;
i++;
}
redraw_scrollback();
} else {
handle_input_s("\033[5~");
}
break;
case KEY_PAGE_DOWN:
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
int i = 0;
while (i < 5 && scrollback_list && scrollback_offset != 0) {
scrollback_offset -= 1;
i++;
}
redraw_scrollback();
} else {
handle_input_s("\033[6~");
}
break;
}
}
}
void * wait_for_exit(void * garbage) {
syscall_wait(child_pid);
/* Clean up */
exit_application = 1;
/* Exit */
}
void usage(char * argv[]) {
printf(
"Terminal Emulator\n"
"\n"
"usage: %s [-b] [-F] [-h]\n"
"\n"
" -F --fullscreen \033[3mRun in legacy fullscreen 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"
"\n"
" This terminal emulator provides basic support for VT220 escapes and\n"
" XTerm extensions, including 256 color support and font effects.\n",
argv[0]);
}
void reinit() {
if (_use_freetype) {
/* 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);
}
int old_width = term_width;
int old_height = term_height;
if (_windowed) {
term_width = window_width / char_width;
term_height = window_height / char_height;
} else if (_vga_mode) {
if (!ctx) {
/* This is only set so that the mouse scaling has only one code-path
* so reallocating this for resizes is pointless as VGA mode will never
* change its sizes. */
ctx = malloc(sizeof(gfx_context_t));
ctx->width = 800;
ctx->height = 250;
}
/* Set the actual terminal size */
term_width = 80;
term_height = 25;
/* Set these to fake values, primarily for the mouse again */
char_width = 1;
char_height = 1;
} else {
/* Non-windowed graphical mode */
term_width = ctx->width / char_width;
term_height = ctx->height / char_height;
}
if (term_buffer) {
t_cell * new_term_buffer = malloc(sizeof(t_cell) * term_width * term_height);
memset(new_term_buffer, 0x0, sizeof(t_cell) * term_width * term_height);
for (int row = 0; row < min(old_height, term_height); ++row) {
for (int col = 0; col < min(old_width, term_width); ++col) {
t_cell * old_cell = (t_cell *)((uintptr_t)term_buffer + (row * old_width + col) * sizeof(t_cell));
t_cell * new_cell = (t_cell *)((uintptr_t)new_term_buffer + (row * term_width + col) * sizeof(t_cell));
*new_cell = *old_cell;
}
}
free(term_buffer);
term_buffer = new_term_buffer;
} else {
term_buffer = malloc(sizeof(t_cell) * term_width * term_height);
memset(term_buffer, 0x0, sizeof(t_cell) * term_width * term_height);
}
ansi_init(&term_write, term_width, term_height, &term_set_colors, &term_set_csr, &term_get_csr_x, &term_get_csr_y, &term_set_cell, &term_clear, &term_redraw_cursor, &term_scroll);
mouse_x = ctx->width / 2;
mouse_y = ctx->height / 2;
if (!_vga_mode) {
draw_fill(ctx, rgba(0,0,0, DEFAULT_OPAC));
render_decors();
term_redraw_all();
}
struct winsize w;
w.ws_row = term_height;
w.ws_col = term_width;
ioctl(fd_master, TIOCSWINSZ, &w);
}
#if DEBUG_TERMINAL_WITH_SERIAL
DEFN_SYSCALL1(serial, 44, int);
int serial_fd;
void serial_put(uint8_t c) {
if (c == '\033') {
char out[3] = {'\\', 'E', 0};
write(serial_fd, out, 2);
} else if (c < 32) {
char out[5] = {'\\', '0' + ((c / 8) / 8) % 8, '0' + (c / 8) % 8, '0' + c % 8, 0};
write(serial_fd, out, 4);
} else {
char out[2] = {c, 0};
write(serial_fd, out, 1);
}
}
#endif
void * handle_incoming(void * garbage) {
int mfd = syscall_mousedevice();
unsigned char buf[1024];
while (!exit_application) {
struct stat _stat;
fstat(mfd, &_stat);
if (exit_application) {
break;
}
if (_windowed) {
w_keyboard_t * kbd = poll_keyboard();
if (kbd != NULL) {
key_event(kbd->ret, &kbd->event);
free(kbd);
}
} else {
while (_stat.st_size >= sizeof(mouse_device_packet_t)) {
mouse_device_packet_t * packet = (mouse_device_packet_t *)&buf;
int r = read(mfd, buf, sizeof(mouse_device_packet_t));
if (packet->magic != MOUSE_MAGIC) {
int r = read(mfd, buf, 1);
goto fail_mouse;
}
cell_redraw(((mouse_x / MOUSE_SCALE) * term_width) / ctx->width, ((mouse_y / MOUSE_SCALE) * term_height) / ctx->height);
/* Apply mouse movement */
int c, l;
c = abs(packet->x_difference);
l = 0;
while (c >>= 1) {
l++;
}
mouse_x += packet->x_difference * l;
c = abs(packet->y_difference);
l = 0;
while (c >>= 1) {
l++;
}
mouse_y -= packet->y_difference * l;
if (mouse_x < 0) mouse_x = 0;
if (mouse_y < 0) mouse_y = 0;
if (mouse_x >= ctx->width * MOUSE_SCALE) mouse_x = (ctx->width - char_width) * MOUSE_SCALE;
if (mouse_y >= ctx->height * MOUSE_SCALE) mouse_y = (ctx->height - char_height) * MOUSE_SCALE;
cell_redraw_box(((mouse_x / MOUSE_SCALE) * term_width) / ctx->width, ((mouse_y / MOUSE_SCALE) * term_height) / ctx->height);
fstat(mfd, &_stat);
}
fail_mouse:
fstat(0, &_stat);
if (_stat.st_size) {
size_t r = read(0, buf, min(_stat.st_size, 1024));
key_event_t event;
for (size_t i = 0; i < r; ++i) {
int ret = kbd_scancode(buf[i], &event);
key_event(ret, &event);
}
}
}
}
pthread_exit(0);
}
int main(int argc, char ** argv) {
_windowed = 1;
_use_freetype = 1;
_login_shell = 0;
static struct option long_opts[] = {
{"fullscreen", no_argument, 0, 'F'},
{"bitmap", no_argument, 0, 'b'},
{"vga", no_argument, 0, 'V'},
{"login", no_argument, 0, 'l'},
{"help", no_argument, 0, 'h'},
{"kernel", no_argument, 0, 'k'},
{"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, "bhFVlks: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 'l':
_login_shell = 1;
break;
case 'V':
_use_freetype = 0;
_vga_mode = 1;
_windowed = 0;
break;
case 'F':
_windowed = 0;
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;
}
}
#if DEBUG_TERMINAL_WITH_SERIAL
serial_fd = syscall_serial(0x3F8);
#endif
putenv("TERM=toaru");
if (_windowed) {
/* Initialize the windowing library */
setup_windowing();
int x = 20, y = 20;
/* Create the window */
window = window_create(x,y, window_width + decor_left_width + decor_right_width, window_height + decor_top_height + decor_bottom_height);
resize_window_callback = resize_callback;
focus_changed_callback = focus_callback;
window_enable_alpha(window);
/* Initialize the decoration library */
init_decorations();
/* Initialize the graphics context */
ctx = init_graphics_window(window);
/* Clear to black */
draw_fill(ctx, rgb(0,0,0));
} else if (_vga_mode) {
/* Set some important VGA options */
int temp = 0xFFFF;
outb(14, 0x3D4);
outb(temp >> 8, 0x3D5);
outb(15, 0x3D4);
outb(temp, 0x3D5);
} else {
ctx = init_graphics_fullscreen();
}
if (_use_freetype) {
int error;
error = FT_Init_FreeType(&library);
if (error) return 1;
char * font = NULL;
size_t s;
setLoaded(0,0);
setLoaded(1,0);
setLoaded(2,0);
setLoaded(3,0);
setLoaded(4,0);
setLoaded(0,2);
font = loadMemFont("/usr/share/fonts/DejaVuSansMono.ttf", WINS_SERVER_IDENTIFIER ".fonts.monospace", &s);
error = FT_New_Memory_Face(library, font, s, 0, &face); if (error) return 1;
setLoaded(0,1);
setLoaded(1,2);
font = loadMemFont("/usr/share/fonts/DejaVuSansMono-Bold.ttf", WINS_SERVER_IDENTIFIER ".fonts.monospace.bold", &s);
error = FT_New_Memory_Face(library, font, s, 0, &face_bold); if (error) return 1;
setLoaded(1,1);
setLoaded(2,2);
font = loadMemFont("/usr/share/fonts/DejaVuSansMono-Oblique.ttf", WINS_SERVER_IDENTIFIER ".fonts.monospace.italic", &s);
error = FT_New_Memory_Face(library, font, s, 0, &face_italic); if (error) return 1;
setLoaded(2,1);
setLoaded(3,2);
font = loadMemFont("/usr/share/fonts/DejaVuSansMono-BoldOblique.ttf", WINS_SERVER_IDENTIFIER ".fonts.monospace.bolditalic", &s);
error = FT_New_Memory_Face(library, font, s, 0, &face_bold_italic); if (error) return 1;
setLoaded(3,1);
setLoaded(4,2);
error = FT_New_Face(library, "/usr/share/fonts/VLGothic.ttf", 0, &face_extra);
setLoaded(4,1);
}
syscall_openpty(&fd_master, &fd_slave, NULL, NULL, NULL);
terminal = fdopen(fd_slave, "w");
reinit();
fflush(stdin);
int pid = getpid();
uint32_t f = fork();
if (getpid() != pid) {
syscall_dup2(fd_slave, 0);
syscall_dup2(fd_slave, 1);
syscall_dup2(fd_slave, 2);
if (argv[optind] != NULL) {
char * tokens[] = {argv[optind], NULL};
int i = execvp(tokens[0], tokens);
printf("Failed to execute requested startup application `%s`!\n", argv[optind]);
printf("Your system is now unusable, and a restart will not be attempted.\n");
syscall_print("core-tests : FATAL : Failed to execute requested startup binary.\n");
} else {
/*
* TODO: Check the public-readable passwd file to select which shell to run
*/
if (_login_shell) {
char * tokens[] = {"/bin/login",NULL};
int i = execvp(tokens[0], tokens);
} else {
char * tokens[] = {"/bin/sh",NULL};
int i = execvp(tokens[0], tokens);
}
}
exit_application = 1;
return 1;
} else {
if (!_windowed || _force_kernel) {
/* Request kernel output to this terminal */
//syscall_system_function(4, (char **)fd_slave);
}
child_pid = f;
pthread_t wait_for_exit_thread;
pthread_create(&wait_for_exit_thread, NULL, wait_for_exit, NULL);
pthread_t handle_incoming_thread;
pthread_create(&handle_incoming_thread, NULL, handle_incoming, NULL);
unsigned char buf[1024];
struct stat _stat;
while (!exit_application) {
timer_tick++;
if (timer_tick == (_windowed ? TIMER_TICK * 10 : TIMER_TICK)) {
timer_tick = 0;
flip_cursor();
}
fstat(fd_master, &_stat);
if (_stat.st_size) {
int r = read(fd_master, buf, min(_stat.st_size, 1024));
for (uint32_t i = 0; i < r; ++i) {
ansi_put(buf[i]);
#if DEBUG_TERMINAL_WITH_SERIAL
serial_put(buf[i]);
#endif
}
}
syscall_yield();
}
}
if (_windowed) {
teardown_windowing();
}
return 0;
}
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