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670 lines
16 KiB
670 lines
16 KiB
/*
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* Copyright © 2008 Kristian Høgsberg
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <math.h>
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#include <time.h>
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#include <pty.h>
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#include <ctype.h>
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#include <cairo.h>
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#include <glib.h>
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#include <linux/input.h>
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#include <GL/gl.h>
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#include <eagle.h>
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#include "wayland-client.h"
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#include "wayland-glib.h"
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#include "cairo-util.h"
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#include "window.h"
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static int option_fullscreen;
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static const char gem_device[] = "/dev/dri/card0";
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static const char socket_name[] = "\0wayland";
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#define MOD_SHIFT 0x01
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#define MOD_ALT 0x02
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#define MOD_CTRL 0x04
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struct terminal {
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struct window *window;
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struct wl_display *display;
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struct wl_compositor *compositor;
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int redraw_scheduled, redraw_pending;
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char *data;
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int width, height, start, row, column;
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int fd, master;
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struct buffer *buffer;
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GIOChannel *channel;
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uint32_t modifiers;
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char escape[64];
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int escape_length;
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int state;
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int margin;
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int fullscreen;
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};
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static char *
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terminal_get_row(struct terminal *terminal, int row)
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{
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int index;
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index = (row + terminal->start) % terminal->height;
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return &terminal->data[index * (terminal->width + 1)];
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}
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static void
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terminal_resize(struct terminal *terminal, int width, int height)
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{
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size_t size;
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char *data;
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int i, l, total_rows, start;
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if (terminal->width == width && terminal->height == height)
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return;
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size = (width + 1) * height;
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data = malloc(size);
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memset(data, 0, size);
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if (terminal->data) {
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if (width > terminal->width)
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l = terminal->width;
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else
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l = width;
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if (terminal->height > height) {
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total_rows = height;
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start = terminal->height - height;
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} else {
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total_rows = terminal->height;
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start = 0;
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}
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for (i = 0; i < total_rows; i++)
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memcpy(data + (width + 1) * i,
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terminal_get_row(terminal, i), l);
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free(terminal->data);
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}
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terminal->width = width;
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terminal->height = height;
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terminal->data = data;
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if (terminal->row >= terminal->height)
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terminal->row = terminal->height - 1;
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if (terminal->column >= terminal->width)
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terminal->column = terminal->width - 1;
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terminal->start = 0;
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}
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static void
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terminal_draw_contents(struct terminal *terminal)
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{
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struct rectangle rectangle;
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cairo_surface_t *surface;
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cairo_t *cr;
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cairo_font_extents_t extents;
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int i, top_margin, side_margin;
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window_get_child_rectangle(terminal->window, &rectangle);
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surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
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rectangle.width, rectangle.height);
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cr = cairo_create(surface);
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
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cairo_set_source_rgba(cr, 0, 0, 0, 0.9);
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cairo_paint(cr);
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
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cairo_set_source_rgba(cr, 0, 0.7, 0, 1);
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cairo_select_font_face (cr, "mono",
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CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_NORMAL);
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cairo_set_font_size(cr, 14);
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cairo_font_extents(cr, &extents);
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side_margin = (rectangle.width - terminal->width * extents.max_x_advance) / 2;
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top_margin = (rectangle.height - terminal->height * extents.height) / 2;
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for (i = 0; i < terminal->height; i++) {
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cairo_move_to(cr, side_margin,
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top_margin + extents.ascent + extents.height * i);
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cairo_show_text(cr, terminal_get_row(terminal, i));
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}
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cairo_destroy(cr);
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terminal->buffer = buffer_create_from_cairo_surface(terminal->fd, surface);
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cairo_surface_destroy(surface);
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window_copy(terminal->window,
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&rectangle,
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terminal->buffer->name, terminal->buffer->stride);
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}
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static void
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terminal_draw(struct terminal *terminal)
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{
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struct rectangle rectangle;
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cairo_surface_t *surface;
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cairo_font_extents_t extents;
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cairo_t *cr;
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int32_t width, height;
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window_get_child_rectangle(terminal->window, &rectangle);
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surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 0, 0);
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cr = cairo_create(surface);
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cairo_select_font_face (cr, "mono",
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CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_NORMAL);
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cairo_set_font_size(cr, 14);
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cairo_font_extents(cr, &extents);
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cairo_destroy(cr);
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cairo_surface_destroy(surface);
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width = (rectangle.width - 2 * terminal->margin) / (int32_t) extents.max_x_advance;
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height = (rectangle.height - 2 * terminal->margin) / (int32_t) extents.height;
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terminal_resize(terminal, width, height);
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if (!terminal->fullscreen) {
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rectangle.width = terminal->width * extents.max_x_advance + 2 * terminal->margin;
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rectangle.height = terminal->height * extents.height + 2 * terminal->margin;
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window_set_child_size(terminal->window, &rectangle);
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}
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window_draw(terminal->window);
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terminal_draw_contents(terminal);
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wl_compositor_commit(terminal->compositor, 0);
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}
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static gboolean
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idle_redraw(void *data)
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{
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struct terminal *terminal = data;
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terminal_draw(terminal);
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return FALSE;
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}
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#define STATE_NORMAL 0
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#define STATE_ESCAPE 1
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static void
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terminal_data(struct terminal *terminal, const char *data, size_t length);
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static void
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terminal_schedule_redraw(struct terminal *terminal)
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{
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if (!terminal->redraw_scheduled) {
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g_idle_add(idle_redraw, terminal);
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terminal->redraw_scheduled = 1;
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} else {
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terminal->redraw_pending = 1;
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}
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}
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static void
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terminal_data(struct terminal *terminal, const char *data, size_t length);
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static void
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handle_escape(struct terminal *terminal)
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{
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char *row, *p;
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int i, count;
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int args[10], set[10] = { 0, };
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terminal->escape[terminal->escape_length++] = '\0';
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i = 0;
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p = &terminal->escape[2];
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while ((isdigit(*p) || *p == ';') && i < 10) {
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if (*p == ';') {
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p++;
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i++;
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} else {
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args[i] = strtol(p, &p, 10);
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set[i] = 1;
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}
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}
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switch (*p) {
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case 'A':
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count = set[0] ? args[0] : 1;
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if (terminal->row - count >= 0)
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terminal->row -= count;
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else
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terminal->row = 0;
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break;
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case 'B':
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count = set[0] ? args[0] : 1;
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if (terminal->row + count < terminal->height)
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terminal->row += count;
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else
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terminal->row = terminal->height;
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break;
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case 'C':
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count = set[0] ? args[0] : 1;
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if (terminal->column + count < terminal->width)
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terminal->column += count;
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else
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terminal->column = terminal->width;
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break;
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case 'D':
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count = set[0] ? args[0] : 1;
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if (terminal->column - count >= 0)
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terminal->column -= count;
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else
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terminal->column = 0;
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break;
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case 'J':
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row = terminal_get_row(terminal, terminal->row);
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memset(&row[terminal->column], 0, terminal->width - terminal->column);
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for (i = terminal->row + 1; i < terminal->height; i++)
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memset(terminal_get_row(terminal, i), 0, terminal->width);
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break;
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case 'G':
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if (set[0])
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terminal->column = args[0] - 1;
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break;
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case 'H':
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case 'f':
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terminal->row = set[0] ? args[0] - 1 : 0;
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terminal->column = set[1] ? args[1] - 1 : 0;
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break;
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case 'K':
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row = terminal_get_row(terminal, terminal->row);
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memset(&row[terminal->column], 0, terminal->width - terminal->column);
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break;
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case 'm':
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/* color, blink, bold etc*/
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break;
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case '?':
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if (strcmp(p, "?25l") == 0) {
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/* hide cursor */
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} else if (strcmp(p, "?25h") == 0) {
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/* show cursor */
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}
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break;
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default:
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terminal_data(terminal,
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terminal->escape + 1,
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terminal->escape_length - 2);
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break;
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}
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}
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static void
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terminal_data(struct terminal *terminal, const char *data, size_t length)
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{
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int i;
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char *row;
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for (i = 0; i < length; i++) {
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row = terminal_get_row(terminal, terminal->row);
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if (terminal->state == STATE_ESCAPE) {
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terminal->escape[terminal->escape_length++] = data[i];
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if (terminal->escape_length == 2 && data[i] != '[') {
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/* Bad escape sequence. */
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terminal->state = STATE_NORMAL;
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goto cancel_escape;
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}
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if (isalpha(data[i])) {
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terminal->state = STATE_NORMAL;
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handle_escape(terminal);
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}
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continue;
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}
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cancel_escape:
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switch (data[i]) {
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case '\r':
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terminal->column = 0;
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break;
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case '\n':
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terminal->column = 0;
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if (terminal->row + 1 < terminal->height) {
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terminal->row++;
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} else {
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terminal->start++;
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if (terminal->start == terminal->height)
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terminal->start = 0;
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memset(terminal_get_row(terminal, terminal->row),
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0, terminal->width);
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}
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break;
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case '\t':
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memset(&row[terminal->column], ' ', -terminal->column & 7);
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terminal->column = (terminal->column + 7) & ~7;
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break;
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case '\e':
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terminal->state = STATE_ESCAPE;
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terminal->escape[0] = '\e';
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terminal->escape_length = 1;
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break;
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case '\b':
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if (terminal->column > 0)
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terminal->column--;
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break;
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case '\a':
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/* Bell */
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break;
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default:
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if (terminal->column < terminal->width)
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row[terminal->column++] = data[i] < 32 ? data[i] + 64 : data[i];
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break;
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}
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}
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terminal_schedule_redraw(terminal);
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}
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static void
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resize_handler(struct window *window, void *data)
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{
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struct terminal *terminal = data;
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terminal_schedule_redraw(terminal);
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}
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static void
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handle_acknowledge(void *data,
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struct wl_compositor *compositor,
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uint32_t key, uint32_t frame)
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{
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struct terminal *terminal = data;
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terminal->redraw_scheduled = 0;
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if (key == 0)
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buffer_destroy(terminal->buffer, terminal->fd);
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if (terminal->redraw_pending) {
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terminal->redraw_pending = 0;
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terminal_schedule_redraw(terminal);
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}
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}
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static void
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handle_frame(void *data,
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struct wl_compositor *compositor,
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uint32_t frame, uint32_t timestamp)
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{
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}
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static const struct wl_compositor_listener compositor_listener = {
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handle_acknowledge,
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handle_frame,
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};
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struct key {
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int code[4];
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} evdev_keymap[] = {
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{ { 0, 0 } }, /* 0 */
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{ { 0x1b, 0x1b } },
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{ { '1', '!' } },
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{ { '2', '@' } },
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{ { '3', '#' } },
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{ { '4', '$' } },
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{ { '5', '%' } },
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{ { '6', '^' } },
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{ { '7', '&' } },
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{ { '8', '*' } },
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{ { '9', '(' } },
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{ { '0', ')' } },
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{ { '-', '_' } },
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{ { '=', '+' } },
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{ { '\b', '\b' } },
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{ { '\t', '\t' } },
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{ { 'q', 'Q', 0x11 } }, /* 16 */
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{ { 'w', 'W', 0x17 } },
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{ { 'e', 'E', 0x05 } },
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{ { 'r', 'R', 0x12 } },
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{ { 't', 'T', 0x14 } },
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{ { 'y', 'Y', 0x19 } },
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{ { 'u', 'U', 0x15 } },
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{ { 'i', 'I', 0x09 } },
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{ { 'o', 'O', 0x0f } },
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{ { 'p', 'P', 0x10 } },
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{ { '[', '{', 0x1b } },
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{ { ']', '}', 0x1d } },
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{ { '\n', '\n' } },
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{ { 0, 0 } },
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{ { 'a', 'A', 0x01} },
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{ { 's', 'S', 0x13 } },
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{ { 'd', 'D', 0x04 } }, /* 32 */
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{ { 'f', 'F', 0x06 } },
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{ { 'g', 'G', 0x07 } },
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{ { 'h', 'H', 0x08 } },
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{ { 'j', 'J', 0x0a } },
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{ { 'k', 'K', 0x0b } },
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{ { 'l', 'L', 0x0c } },
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{ { ';', ':' } },
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{ { '\'', '"' } },
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{ { '`', '~' } },
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{ { 0, 0 } },
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{ { '\\', '|', 0x1c } },
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{ { 'z', 'Z', 0x1a } },
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{ { 'x', 'X', 0x18 } },
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{ { 'c', 'C', 0x03 } },
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{ { 'v', 'V', 0x16 } },
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{ { 'b', 'B', 0x02 } }, /* 48 */
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{ { 'n', 'N', 0x0e } },
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{ { 'm', 'M', 0x0d } },
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{ { ',', '<' } },
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{ { '.', '>' } },
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{ { '/', '?' } },
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{ { 0, 0 } },
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{ { '*', '*' } },
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{ { 0, 0 } },
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{ { ' ', ' ' } },
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{ { 0, 0 } }
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/* 59 */
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};
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#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
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static void
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key_handler(struct window *window, uint32_t key, uint32_t state, void *data)
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{
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struct terminal *terminal = data;
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uint32_t mod = 0;
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char c;
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switch (key) {
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case KEY_LEFTSHIFT:
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case KEY_RIGHTSHIFT:
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mod = MOD_SHIFT;
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break;
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case KEY_LEFTCTRL:
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case KEY_RIGHTCTRL:
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mod = MOD_CTRL;
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break;
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case KEY_LEFTALT:
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case KEY_RIGHTALT:
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mod = MOD_ALT;
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break;
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case KEY_F11:
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if (!state)
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break;
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terminal->fullscreen ^= 1;
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window_set_fullscreen(window, terminal->fullscreen);
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terminal_schedule_redraw(terminal);
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break;
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default:
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if (key < ARRAY_LENGTH(evdev_keymap)) {
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if (terminal->modifiers & MOD_CTRL)
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c = evdev_keymap[key].code[2];
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else if (terminal->modifiers & MOD_SHIFT)
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c = evdev_keymap[key].code[1];
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else
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c = evdev_keymap[key].code[0];
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if (state && c)
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write(terminal->master, &c, 1);
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}
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break;
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}
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|
|
if (state)
|
|
terminal->modifiers |= mod;
|
|
else
|
|
terminal->modifiers &= ~mod;
|
|
}
|
|
|
|
static struct terminal *
|
|
terminal_create(struct wl_display *display, int fd, int fullscreen)
|
|
{
|
|
struct terminal *terminal;
|
|
|
|
terminal = malloc(sizeof *terminal);
|
|
if (terminal == NULL)
|
|
return terminal;
|
|
|
|
memset(terminal, 0, sizeof *terminal);
|
|
terminal->fd = fd;
|
|
terminal->fullscreen = fullscreen;
|
|
terminal->window = window_create(display, fd, "Wayland Terminal",
|
|
500, 100, 500, 400);
|
|
terminal->display = display;
|
|
terminal->redraw_scheduled = 1;
|
|
terminal->margin = 5;
|
|
|
|
terminal->compositor = wl_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);
|
|
|
|
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) {
|
|
close(master);
|
|
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 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;
|
|
}
|
|
|
|
loop = g_main_loop_new(NULL, FALSE);
|
|
source = wl_glib_source_new(display);
|
|
g_source_attach(source, NULL);
|
|
|
|
terminal = terminal_create(display, fd, option_fullscreen);
|
|
if (terminal_run(terminal, "/bin/bash"))
|
|
exit(EXIT_FAILURE);
|
|
|
|
g_main_loop_run(loop);
|
|
|
|
return 0;
|
|
}
|
|
|