You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
607 lines
15 KiB
607 lines
15 KiB
/*
|
|
* Copyright © 2008 Kristian Høgsberg
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that copyright
|
|
* notice and this permission notice appear in supporting documentation, and
|
|
* that the name of the copyright holders not be used in advertising or
|
|
* publicity pertaining to distribution of the software without specific,
|
|
* written prior permission. The copyright holders make no representations
|
|
* about the suitability of this software for any purpose. It is provided "as
|
|
* is" without express or implied warranty.
|
|
*
|
|
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
|
* OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <math.h>
|
|
#include <time.h>
|
|
#include <pty.h>
|
|
#include <ctype.h>
|
|
#include <cairo.h>
|
|
#include <glib.h>
|
|
#include <linux/input.h>
|
|
#include <cairo-drm.h>
|
|
|
|
#include "wayland-util.h"
|
|
#include "wayland-client.h"
|
|
#include "wayland-glib.h"
|
|
|
|
#include "window.h"
|
|
|
|
static int option_fullscreen;
|
|
static const char gem_device[] = "/dev/dri/card0";
|
|
static const char socket_name[] = "\0wayland";
|
|
|
|
#define MOD_SHIFT 0x01
|
|
#define MOD_ALT 0x02
|
|
#define MOD_CTRL 0x04
|
|
|
|
struct terminal {
|
|
struct window *window;
|
|
struct display *display;
|
|
struct wl_compositor *compositor;
|
|
int redraw_scheduled, redraw_pending;
|
|
char *data;
|
|
int width, height, start, row, column;
|
|
int fd, master;
|
|
GIOChannel *channel;
|
|
uint32_t modifiers;
|
|
char escape[64];
|
|
int escape_length;
|
|
int state;
|
|
int margin;
|
|
int fullscreen;
|
|
int focused;
|
|
struct color_scheme *color_scheme;
|
|
};
|
|
|
|
static char *
|
|
terminal_get_row(struct terminal *terminal, int row)
|
|
{
|
|
int index;
|
|
|
|
index = (row + terminal->start) % terminal->height;
|
|
|
|
return &terminal->data[index * (terminal->width + 1)];
|
|
}
|
|
|
|
static void
|
|
terminal_resize(struct terminal *terminal, int width, int height)
|
|
{
|
|
size_t size;
|
|
char *data;
|
|
int i, l, total_rows, start;
|
|
|
|
if (terminal->width == width && terminal->height == height)
|
|
return;
|
|
|
|
size = (width + 1) * height;
|
|
data = malloc(size);
|
|
memset(data, 0, size);
|
|
if (terminal->data) {
|
|
if (width > terminal->width)
|
|
l = terminal->width;
|
|
else
|
|
l = width;
|
|
|
|
if (terminal->height > height) {
|
|
total_rows = height;
|
|
start = terminal->height - height;
|
|
} else {
|
|
total_rows = terminal->height;
|
|
start = 0;
|
|
}
|
|
|
|
for (i = 0; i < total_rows; i++)
|
|
memcpy(data + (width + 1) * i,
|
|
terminal_get_row(terminal, i), l);
|
|
|
|
free(terminal->data);
|
|
}
|
|
|
|
terminal->width = width;
|
|
terminal->height = height;
|
|
terminal->data = data;
|
|
|
|
if (terminal->row >= terminal->height)
|
|
terminal->row = terminal->height - 1;
|
|
if (terminal->column >= terminal->width)
|
|
terminal->column = terminal->width - 1;
|
|
terminal->start = 0;
|
|
}
|
|
|
|
struct color_scheme { struct { double r, g, b, a; } fg, bg; }
|
|
matrix_colors = { { 0, 0.7, 0, 1 }, { 0, 0, 0, 0.9 } },
|
|
jbarnes_colors = { { 1, 1, 1, 1 }, { 0, 0, 0, 1 } };
|
|
|
|
static void
|
|
terminal_draw_contents(struct terminal *terminal)
|
|
{
|
|
struct rectangle rectangle;
|
|
cairo_t *cr;
|
|
cairo_font_extents_t extents;
|
|
int i, top_margin, side_margin;
|
|
cairo_surface_t *surface;
|
|
double d;
|
|
|
|
window_get_child_rectangle(terminal->window, &rectangle);
|
|
|
|
surface = window_create_surface(terminal->window, &rectangle);
|
|
cr = cairo_create(surface);
|
|
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
|
|
cairo_set_source_rgba(cr,
|
|
terminal->color_scheme->bg.r,
|
|
terminal->color_scheme->bg.g,
|
|
terminal->color_scheme->bg.b,
|
|
terminal->color_scheme->bg.a);
|
|
cairo_paint(cr);
|
|
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
|
|
cairo_set_source_rgba(cr,
|
|
terminal->color_scheme->fg.r,
|
|
terminal->color_scheme->fg.g,
|
|
terminal->color_scheme->fg.b,
|
|
terminal->color_scheme->fg.a);
|
|
|
|
cairo_select_font_face (cr, "mono",
|
|
CAIRO_FONT_SLANT_NORMAL,
|
|
CAIRO_FONT_WEIGHT_NORMAL);
|
|
cairo_set_font_size(cr, 14);
|
|
|
|
cairo_font_extents(cr, &extents);
|
|
side_margin = (rectangle.width - terminal->width * extents.max_x_advance) / 2;
|
|
top_margin = (rectangle.height - terminal->height * extents.height) / 2;
|
|
|
|
for (i = 0; i < terminal->height; i++) {
|
|
cairo_move_to(cr, side_margin,
|
|
top_margin + extents.ascent + extents.height * i);
|
|
cairo_show_text(cr, terminal_get_row(terminal, i));
|
|
}
|
|
|
|
d = terminal->focused ? 0 : 0.5;
|
|
|
|
cairo_set_line_width(cr, 1);
|
|
cairo_move_to(cr, side_margin + terminal->column * extents.max_x_advance + d,
|
|
top_margin + terminal->row * extents.height + d);
|
|
cairo_rel_line_to(cr, extents.max_x_advance - 2 * d, 0);
|
|
cairo_rel_line_to(cr, 0, extents.height - 2 * d);
|
|
cairo_rel_line_to(cr, -extents.max_x_advance + 2 * d, 0);
|
|
cairo_close_path(cr);
|
|
|
|
if (terminal->focused)
|
|
cairo_fill(cr);
|
|
else
|
|
cairo_stroke(cr);
|
|
|
|
cairo_destroy(cr);
|
|
|
|
window_copy_surface(terminal->window,
|
|
&rectangle,
|
|
surface);
|
|
|
|
cairo_surface_destroy(surface);
|
|
}
|
|
|
|
static void
|
|
terminal_draw(struct terminal *terminal)
|
|
{
|
|
struct rectangle rectangle;
|
|
cairo_surface_t *surface;
|
|
cairo_font_extents_t extents;
|
|
cairo_t *cr;
|
|
int32_t width, height;
|
|
|
|
window_get_child_rectangle(terminal->window, &rectangle);
|
|
|
|
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 0, 0);
|
|
cr = cairo_create(surface);
|
|
cairo_select_font_face (cr, "mono",
|
|
CAIRO_FONT_SLANT_NORMAL,
|
|
CAIRO_FONT_WEIGHT_NORMAL);
|
|
cairo_set_font_size(cr, 14);
|
|
cairo_font_extents(cr, &extents);
|
|
cairo_destroy(cr);
|
|
cairo_surface_destroy(surface);
|
|
|
|
width = (rectangle.width - 2 * terminal->margin) / (int32_t) extents.max_x_advance;
|
|
height = (rectangle.height - 2 * terminal->margin) / (int32_t) extents.height;
|
|
terminal_resize(terminal, width, height);
|
|
|
|
if (!terminal->fullscreen) {
|
|
rectangle.width = terminal->width * extents.max_x_advance + 2 * terminal->margin;
|
|
rectangle.height = terminal->height * extents.height + 2 * terminal->margin;
|
|
window_set_child_size(terminal->window, &rectangle);
|
|
}
|
|
|
|
window_draw(terminal->window);
|
|
terminal_draw_contents(terminal);
|
|
wl_compositor_commit(terminal->compositor, 0);
|
|
}
|
|
|
|
static gboolean
|
|
idle_redraw(void *data)
|
|
{
|
|
struct terminal *terminal = data;
|
|
|
|
terminal_draw(terminal);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
#define STATE_NORMAL 0
|
|
#define STATE_ESCAPE 1
|
|
|
|
static void
|
|
terminal_data(struct terminal *terminal, const char *data, size_t length);
|
|
|
|
static void
|
|
terminal_schedule_redraw(struct terminal *terminal)
|
|
{
|
|
if (!terminal->redraw_scheduled) {
|
|
g_idle_add(idle_redraw, terminal);
|
|
terminal->redraw_scheduled = 1;
|
|
} else {
|
|
terminal->redraw_pending = 1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
handle_escape(struct terminal *terminal)
|
|
{
|
|
char *row, *p;
|
|
int i, count;
|
|
int args[10], set[10] = { 0, };
|
|
|
|
terminal->escape[terminal->escape_length++] = '\0';
|
|
i = 0;
|
|
p = &terminal->escape[2];
|
|
while ((isdigit(*p) || *p == ';') && i < 10) {
|
|
if (*p == ';') {
|
|
p++;
|
|
i++;
|
|
} else {
|
|
args[i] = strtol(p, &p, 10);
|
|
set[i] = 1;
|
|
}
|
|
}
|
|
|
|
switch (*p) {
|
|
case 'A':
|
|
count = set[0] ? args[0] : 1;
|
|
if (terminal->row - count >= 0)
|
|
terminal->row -= count;
|
|
else
|
|
terminal->row = 0;
|
|
break;
|
|
case 'B':
|
|
count = set[0] ? args[0] : 1;
|
|
if (terminal->row + count < terminal->height)
|
|
terminal->row += count;
|
|
else
|
|
terminal->row = terminal->height;
|
|
break;
|
|
case 'C':
|
|
count = set[0] ? args[0] : 1;
|
|
if (terminal->column + count < terminal->width)
|
|
terminal->column += count;
|
|
else
|
|
terminal->column = terminal->width;
|
|
break;
|
|
case 'D':
|
|
count = set[0] ? args[0] : 1;
|
|
if (terminal->column - count >= 0)
|
|
terminal->column -= count;
|
|
else
|
|
terminal->column = 0;
|
|
break;
|
|
case 'J':
|
|
row = terminal_get_row(terminal, terminal->row);
|
|
memset(&row[terminal->column], 0, terminal->width - terminal->column);
|
|
for (i = terminal->row + 1; i < terminal->height; i++)
|
|
memset(terminal_get_row(terminal, i), 0, terminal->width);
|
|
break;
|
|
case 'G':
|
|
if (set[0])
|
|
terminal->column = args[0] - 1;
|
|
break;
|
|
case 'H':
|
|
case 'f':
|
|
terminal->row = set[0] ? args[0] - 1 : 0;
|
|
terminal->column = set[1] ? args[1] - 1 : 0;
|
|
break;
|
|
case 'K':
|
|
row = terminal_get_row(terminal, terminal->row);
|
|
memset(&row[terminal->column], 0, terminal->width - terminal->column);
|
|
break;
|
|
case 'm':
|
|
/* color, blink, bold etc*/
|
|
break;
|
|
case '?':
|
|
if (strcmp(p, "?25l") == 0) {
|
|
/* hide cursor */
|
|
} else if (strcmp(p, "?25h") == 0) {
|
|
/* show cursor */
|
|
}
|
|
break;
|
|
default:
|
|
terminal_data(terminal,
|
|
terminal->escape + 1,
|
|
terminal->escape_length - 2);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
terminal_data(struct terminal *terminal, const char *data, size_t length)
|
|
{
|
|
int i;
|
|
char *row;
|
|
|
|
for (i = 0; i < length; i++) {
|
|
row = terminal_get_row(terminal, terminal->row);
|
|
|
|
if (terminal->state == STATE_ESCAPE) {
|
|
terminal->escape[terminal->escape_length++] = data[i];
|
|
if (terminal->escape_length == 2 && data[i] != '[') {
|
|
/* Bad escape sequence. */
|
|
terminal->state = STATE_NORMAL;
|
|
goto cancel_escape;
|
|
}
|
|
|
|
if (isalpha(data[i])) {
|
|
terminal->state = STATE_NORMAL;
|
|
handle_escape(terminal);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
cancel_escape:
|
|
switch (data[i]) {
|
|
case '\r':
|
|
terminal->column = 0;
|
|
break;
|
|
case '\n':
|
|
terminal->column = 0;
|
|
if (terminal->row + 1 < terminal->height) {
|
|
terminal->row++;
|
|
} else {
|
|
terminal->start++;
|
|
if (terminal->start == terminal->height)
|
|
terminal->start = 0;
|
|
memset(terminal_get_row(terminal, terminal->row),
|
|
0, terminal->width);
|
|
}
|
|
|
|
break;
|
|
case '\t':
|
|
memset(&row[terminal->column], ' ', -terminal->column & 7);
|
|
terminal->column = (terminal->column + 7) & ~7;
|
|
break;
|
|
case '\e':
|
|
terminal->state = STATE_ESCAPE;
|
|
terminal->escape[0] = '\e';
|
|
terminal->escape_length = 1;
|
|
break;
|
|
case '\b':
|
|
if (terminal->column > 0)
|
|
terminal->column--;
|
|
break;
|
|
case '\a':
|
|
/* Bell */
|
|
break;
|
|
default:
|
|
if (terminal->column < terminal->width)
|
|
row[terminal->column++] = data[i] < 32 ? data[i] + 64 : data[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
terminal_schedule_redraw(terminal);
|
|
}
|
|
|
|
static void
|
|
resize_handler(struct window *window, void *data)
|
|
{
|
|
struct terminal *terminal = data;
|
|
|
|
terminal_schedule_redraw(terminal);
|
|
}
|
|
|
|
static void
|
|
handle_acknowledge(void *data,
|
|
struct wl_compositor *compositor,
|
|
uint32_t key, uint32_t frame)
|
|
{
|
|
struct terminal *terminal = data;
|
|
|
|
terminal->redraw_scheduled = 0;
|
|
if (terminal->redraw_pending) {
|
|
terminal->redraw_pending = 0;
|
|
terminal_schedule_redraw(terminal);
|
|
}
|
|
}
|
|
|
|
static void
|
|
handle_frame(void *data,
|
|
struct wl_compositor *compositor,
|
|
uint32_t frame, uint32_t timestamp)
|
|
{
|
|
}
|
|
|
|
static const struct wl_compositor_listener compositor_listener = {
|
|
handle_acknowledge,
|
|
handle_frame,
|
|
};
|
|
|
|
static void
|
|
key_handler(struct window *window, uint32_t key, uint32_t unicode,
|
|
uint32_t state, uint32_t modifiers, void *data)
|
|
{
|
|
struct terminal *terminal = data;
|
|
char ch = unicode;
|
|
|
|
switch (key) {
|
|
case KEY_F11:
|
|
if (!state)
|
|
break;
|
|
terminal->fullscreen ^= 1;
|
|
window_set_fullscreen(window, terminal->fullscreen);
|
|
terminal_schedule_redraw(terminal);
|
|
break;
|
|
default:
|
|
if (state && unicode)
|
|
write(terminal->master, &ch, 1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
keyboard_focus_handler(struct window *window,
|
|
struct wl_input_device *device, void *data)
|
|
{
|
|
struct terminal *terminal = data;
|
|
|
|
terminal->focused = (device != NULL);
|
|
terminal_schedule_redraw(terminal);
|
|
}
|
|
|
|
static struct terminal *
|
|
terminal_create(struct display *display, int fullscreen)
|
|
{
|
|
struct terminal *terminal;
|
|
|
|
terminal = malloc(sizeof *terminal);
|
|
if (terminal == NULL)
|
|
return terminal;
|
|
|
|
memset(terminal, 0, sizeof *terminal);
|
|
terminal->fullscreen = fullscreen;
|
|
terminal->color_scheme = &jbarnes_colors;
|
|
terminal->window = window_create(display, "Wayland Terminal",
|
|
500, 100, 500, 400);
|
|
terminal->display = display;
|
|
terminal->redraw_scheduled = 1;
|
|
terminal->margin = 5;
|
|
|
|
terminal->compositor = display_get_compositor(display);
|
|
window_set_fullscreen(terminal->window, terminal->fullscreen);
|
|
window_set_resize_handler(terminal->window, resize_handler, terminal);
|
|
|
|
wl_compositor_add_listener(terminal->compositor,
|
|
&compositor_listener, terminal);
|
|
|
|
window_set_key_handler(terminal->window, key_handler, terminal);
|
|
window_set_keyboard_focus_handler(terminal->window,
|
|
keyboard_focus_handler, terminal);
|
|
|
|
terminal_draw(terminal);
|
|
|
|
return terminal;
|
|
}
|
|
|
|
static gboolean
|
|
io_handler(GIOChannel *source,
|
|
GIOCondition condition,
|
|
gpointer data)
|
|
{
|
|
struct terminal *terminal = data;
|
|
gchar buffer[256];
|
|
gsize bytes_read;
|
|
GError *error = NULL;
|
|
|
|
g_io_channel_read_chars(source, buffer, sizeof buffer,
|
|
&bytes_read, &error);
|
|
|
|
terminal_data(terminal, buffer, bytes_read);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static int
|
|
terminal_run(struct terminal *terminal, const char *path)
|
|
{
|
|
int master;
|
|
pid_t pid;
|
|
|
|
pid = forkpty(&master, NULL, NULL, NULL);
|
|
if (pid == 0) {
|
|
setenv("TERM", "vt100", 1);
|
|
if (execl(path, path, NULL)) {
|
|
printf("exec failed: %m\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
} else if (pid < 0) {
|
|
fprintf(stderr, "failed to fork and create pty (%m).\n");
|
|
return -1;
|
|
}
|
|
|
|
terminal->master = master;
|
|
terminal->channel = g_io_channel_unix_new(master);
|
|
fcntl(master, F_SETFL, O_NONBLOCK);
|
|
g_io_add_watch(terminal->channel, G_IO_IN,
|
|
io_handler, terminal);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const GOptionEntry option_entries[] = {
|
|
{ "fullscreen", 'f', 0, G_OPTION_ARG_NONE,
|
|
&option_fullscreen, "Run in fullscreen mode" },
|
|
{ NULL }
|
|
};
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct wl_display *display;
|
|
int fd;
|
|
GMainLoop *loop;
|
|
GSource *source;
|
|
struct display *d;
|
|
struct terminal *terminal;
|
|
GOptionContext *context;
|
|
GError *error;
|
|
|
|
context = g_option_context_new(NULL);
|
|
g_option_context_add_main_entries(context, option_entries, "Wayland Terminal");
|
|
if (!g_option_context_parse(context, &argc, &argv, &error)) {
|
|
fprintf(stderr, "option parsing failed: %s\n", error->message);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
fd = open(gem_device, O_RDWR);
|
|
if (fd < 0) {
|
|
fprintf(stderr, "drm open failed: %m\n");
|
|
return -1;
|
|
}
|
|
|
|
display = wl_display_create(socket_name, sizeof socket_name);
|
|
if (display == NULL) {
|
|
fprintf(stderr, "failed to create display: %m\n");
|
|
return -1;
|
|
}
|
|
|
|
d = display_create(display, fd);
|
|
loop = g_main_loop_new(NULL, FALSE);
|
|
source = wl_glib_source_new(display);
|
|
g_source_attach(source, NULL);
|
|
|
|
terminal = terminal_create(d, option_fullscreen);
|
|
if (terminal_run(terminal, "/bin/bash"))
|
|
exit(EXIT_FAILURE);
|
|
|
|
g_main_loop_run(loop);
|
|
|
|
return 0;
|
|
}
|
|
|