2 * QEMU VNC display driver
4 * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
5 * Copyright (C) 2006 Fabrice Bellard
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 #include "qemu_socket.h"
29 #define VNC_REFRESH_INTERVAL (1000 / 30)
31 #include "vnc_keysym.h"
41 typedef struct VncState VncState;
43 typedef int VncReadEvent(VncState *vs, char *data, size_t len);
45 typedef void VncWritePixels(VncState *vs, void *data, int size);
47 typedef void VncSendHextileTile(VncState *vs,
48 int x, int y, int w, int h,
51 int *has_bg, int *has_fg);
53 #define VNC_MAX_WIDTH 2048
54 #define VNC_MAX_HEIGHT 2048
55 #define VNC_DIRTY_WORDS (VNC_MAX_WIDTH / (16 * 32))
66 uint32_t dirty_row[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS];
68 int depth; /* internal VNC frame buffer byte per pixel */
73 kbd_layout_t *kbd_layout;
74 /* current output mode information */
75 VncWritePixels *write_pixels;
76 VncSendHextileTile *send_hextile_tile;
77 int pix_bpp, pix_big_endian;
78 int red_shift, red_max, red_shift1;
79 int green_shift, green_max, green_shift1;
80 int blue_shift, blue_max, blue_shift1;
82 VncReadEvent *read_handler;
83 size_t read_handler_expect;
85 uint8_t modifiers_state[256];
89 1) Get the queue working for IO.
90 2) there is some weirdness when using the -S option (the screen is grey
91 and not totally invalidated
95 static void vnc_write(VncState *vs, const void *data, size_t len);
96 static void vnc_write_u32(VncState *vs, uint32_t value);
97 static void vnc_write_s32(VncState *vs, int32_t value);
98 static void vnc_write_u16(VncState *vs, uint16_t value);
99 static void vnc_write_u8(VncState *vs, uint8_t value);
100 static void vnc_flush(VncState *vs);
101 static void vnc_update_client(void *opaque);
102 static void vnc_client_read(void *opaque);
104 static inline void vnc_set_bit(uint32_t *d, int k)
106 d[k >> 5] |= 1 << (k & 0x1f);
109 static inline void vnc_clear_bit(uint32_t *d, int k)
111 d[k >> 5] &= ~(1 << (k & 0x1f));
114 static inline void vnc_set_bits(uint32_t *d, int n, int nb_words)
124 d[j++] = (1 << n) - 1;
129 static inline int vnc_get_bit(const uint32_t *d, int k)
131 return (d[k >> 5] >> (k & 0x1f)) & 1;
134 static inline int vnc_and_bits(const uint32_t *d1, const uint32_t *d2,
138 for(i = 0; i < nb_words; i++) {
139 if ((d1[i] & d2[i]) != 0)
145 static void vnc_dpy_update(DisplayState *ds, int x, int y, int w, int h)
147 VncState *vs = ds->opaque;
153 for (i = 0; i < w; i += 16)
154 vnc_set_bit(vs->dirty_row[y], (x + i) / 16);
157 static void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
160 vnc_write_u16(vs, x);
161 vnc_write_u16(vs, y);
162 vnc_write_u16(vs, w);
163 vnc_write_u16(vs, h);
165 vnc_write_s32(vs, encoding);
168 static void vnc_dpy_resize(DisplayState *ds, int w, int h)
170 VncState *vs = ds->opaque;
172 ds->data = realloc(ds->data, w * h * vs->depth);
173 vs->old_data = realloc(vs->old_data, w * h * vs->depth);
175 if (ds->data == NULL || vs->old_data == NULL) {
176 fprintf(stderr, "vnc: memory allocation failed\n");
180 ds->depth = vs->depth * 8;
183 ds->linesize = w * vs->depth;
184 if (vs->csock != -1 && vs->has_resize) {
185 vnc_write_u8(vs, 0); /* msg id */
187 vnc_write_u16(vs, 1); /* number of rects */
188 vnc_framebuffer_update(vs, 0, 0, ds->width, ds->height, -223);
190 vs->width = ds->width;
191 vs->height = ds->height;
196 static void vnc_write_pixels_copy(VncState *vs, void *pixels, int size)
198 vnc_write(vs, pixels, size);
201 /* slowest but generic code. */
202 static void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v)
204 unsigned int r, g, b;
206 r = (v >> vs->red_shift1) & vs->red_max;
207 g = (v >> vs->green_shift1) & vs->green_max;
208 b = (v >> vs->blue_shift1) & vs->blue_max;
209 v = (r << vs->red_shift) |
210 (g << vs->green_shift) |
211 (b << vs->blue_shift);
212 switch(vs->pix_bpp) {
217 if (vs->pix_big_endian) {
227 if (vs->pix_big_endian) {
242 static void vnc_write_pixels_generic(VncState *vs, void *pixels1, int size)
244 uint32_t *pixels = pixels1;
249 for(i = 0; i < n; i++) {
250 vnc_convert_pixel(vs, buf, pixels[i]);
251 vnc_write(vs, buf, vs->pix_bpp);
255 static void send_framebuffer_update_raw(VncState *vs, int x, int y, int w, int h)
260 vnc_framebuffer_update(vs, x, y, w, h, 0);
262 row = vs->ds->data + y * vs->ds->linesize + x * vs->depth;
263 for (i = 0; i < h; i++) {
264 vs->write_pixels(vs, row, w * vs->depth);
265 row += vs->ds->linesize;
269 static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h)
271 ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F);
272 ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F);
276 #include "vnchextile.h"
280 #include "vnchextile.h"
284 #include "vnchextile.h"
289 #include "vnchextile.h"
293 static void send_framebuffer_update_hextile(VncState *vs, int x, int y, int w, int h)
297 uint32_t last_fg32, last_bg32;
299 vnc_framebuffer_update(vs, x, y, w, h, 5);
302 for (j = y; j < (y + h); j += 16) {
303 for (i = x; i < (x + w); i += 16) {
304 vs->send_hextile_tile(vs, i, j,
305 MIN(16, x + w - i), MIN(16, y + h - j),
306 &last_bg32, &last_fg32, &has_bg, &has_fg);
311 static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
314 send_framebuffer_update_hextile(vs, x, y, w, h);
316 send_framebuffer_update_raw(vs, x, y, w, h);
319 static void vnc_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
326 int pitch = ds->linesize;
327 VncState *vs = ds->opaque;
329 vnc_update_client(vs);
336 src = (ds->linesize * (src_y + y) + vs->depth * src_x);
337 dst = (ds->linesize * (dst_y + y) + vs->depth * dst_x);
339 src_row = ds->data + src;
340 dst_row = ds->data + dst;
341 old_row = vs->old_data + dst;
343 for (y = 0; y < h; y++) {
344 memmove(old_row, src_row, w * vs->depth);
345 memmove(dst_row, src_row, w * vs->depth);
351 vnc_write_u8(vs, 0); /* msg id */
353 vnc_write_u16(vs, 1); /* number of rects */
354 vnc_framebuffer_update(vs, dst_x, dst_y, w, h, 1);
355 vnc_write_u16(vs, src_x);
356 vnc_write_u16(vs, src_y);
360 static int find_dirty_height(VncState *vs, int y, int last_x, int x)
364 for (h = 1; h < (vs->height - y); h++) {
366 if (!vnc_get_bit(vs->dirty_row[y + h], last_x))
368 for (tmp_x = last_x; tmp_x < x; tmp_x++)
369 vnc_clear_bit(vs->dirty_row[y + h], tmp_x);
375 static void vnc_update_client(void *opaque)
377 VncState *vs = opaque;
379 if (vs->need_update && vs->csock != -1) {
383 uint32_t width_mask[VNC_DIRTY_WORDS];
388 vnc_set_bits(width_mask, (vs->width / 16), VNC_DIRTY_WORDS);
390 /* Walk through the dirty map and eliminate tiles that
391 really aren't dirty */
393 old_row = vs->old_data;
395 for (y = 0; y < vs->height; y++) {
396 if (vnc_and_bits(vs->dirty_row[y], width_mask, VNC_DIRTY_WORDS)) {
403 for (x = 0; x < vs->ds->width; x += 16) {
404 if (memcmp(old_ptr, ptr, 16 * vs->depth) == 0) {
405 vnc_clear_bit(vs->dirty_row[y], (x / 16));
408 memcpy(old_ptr, ptr, 16 * vs->depth);
411 ptr += 16 * vs->depth;
412 old_ptr += 16 * vs->depth;
416 row += vs->ds->linesize;
417 old_row += vs->ds->linesize;
421 qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL);
425 /* Count rectangles */
427 vnc_write_u8(vs, 0); /* msg id */
429 saved_offset = vs->output.offset;
430 vnc_write_u16(vs, 0);
432 for (y = 0; y < vs->height; y++) {
435 for (x = 0; x < vs->width / 16; x++) {
436 if (vnc_get_bit(vs->dirty_row[y], x)) {
440 vnc_clear_bit(vs->dirty_row[y], x);
443 int h = find_dirty_height(vs, y, last_x, x);
444 send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h);
451 int h = find_dirty_height(vs, y, last_x, x);
452 send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h);
456 vs->output.buffer[saved_offset] = (n_rectangles >> 8) & 0xFF;
457 vs->output.buffer[saved_offset + 1] = n_rectangles & 0xFF;
461 qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL);
464 static void vnc_timer_init(VncState *vs)
466 if (vs->timer == NULL) {
467 vs->timer = qemu_new_timer(rt_clock, vnc_update_client, vs);
468 qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock));
472 static void vnc_dpy_refresh(DisplayState *ds)
474 VncState *vs = ds->opaque;
479 static int vnc_listen_poll(void *opaque)
481 VncState *vs = opaque;
487 static void buffer_reserve(Buffer *buffer, size_t len)
489 if ((buffer->capacity - buffer->offset) < len) {
490 buffer->capacity += (len + 1024);
491 buffer->buffer = realloc(buffer->buffer, buffer->capacity);
492 if (buffer->buffer == NULL) {
493 fprintf(stderr, "vnc: out of memory\n");
499 static int buffer_empty(Buffer *buffer)
501 return buffer->offset == 0;
504 static char *buffer_end(Buffer *buffer)
506 return buffer->buffer + buffer->offset;
509 static void buffer_reset(Buffer *buffer)
514 static void buffer_append(Buffer *buffer, const void *data, size_t len)
516 memcpy(buffer->buffer + buffer->offset, data, len);
517 buffer->offset += len;
520 static int vnc_client_io_error(VncState *vs, int ret, int last_errno)
522 if (ret == 0 || ret == -1) {
523 if (ret == -1 && (last_errno == EINTR || last_errno == EAGAIN))
526 qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL);
527 closesocket(vs->csock);
529 buffer_reset(&vs->input);
530 buffer_reset(&vs->output);
537 static void vnc_client_error(VncState *vs)
539 vnc_client_io_error(vs, -1, EINVAL);
542 static void vnc_client_write(void *opaque)
545 VncState *vs = opaque;
547 ret = send(vs->csock, vs->output.buffer, vs->output.offset, 0);
548 ret = vnc_client_io_error(vs, ret, socket_error());
552 memmove(vs->output.buffer, vs->output.buffer + ret, (vs->output.offset - ret));
553 vs->output.offset -= ret;
555 if (vs->output.offset == 0) {
556 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
560 static void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting)
562 vs->read_handler = func;
563 vs->read_handler_expect = expecting;
566 static void vnc_client_read(void *opaque)
568 VncState *vs = opaque;
571 buffer_reserve(&vs->input, 4096);
573 ret = recv(vs->csock, buffer_end(&vs->input), 4096, 0);
574 ret = vnc_client_io_error(vs, ret, socket_error());
578 vs->input.offset += ret;
580 while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) {
581 size_t len = vs->read_handler_expect;
584 ret = vs->read_handler(vs, vs->input.buffer, len);
589 memmove(vs->input.buffer, vs->input.buffer + len, (vs->input.offset - len));
590 vs->input.offset -= len;
592 vs->read_handler_expect = ret;
597 static void vnc_write(VncState *vs, const void *data, size_t len)
599 buffer_reserve(&vs->output, len);
601 if (buffer_empty(&vs->output)) {
602 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs);
605 buffer_append(&vs->output, data, len);
608 static void vnc_write_s32(VncState *vs, int32_t value)
610 vnc_write_u32(vs, *(uint32_t *)&value);
613 static void vnc_write_u32(VncState *vs, uint32_t value)
617 buf[0] = (value >> 24) & 0xFF;
618 buf[1] = (value >> 16) & 0xFF;
619 buf[2] = (value >> 8) & 0xFF;
620 buf[3] = value & 0xFF;
622 vnc_write(vs, buf, 4);
625 static void vnc_write_u16(VncState *vs, uint16_t value)
629 buf[0] = (value >> 8) & 0xFF;
630 buf[1] = value & 0xFF;
632 vnc_write(vs, buf, 2);
635 static void vnc_write_u8(VncState *vs, uint8_t value)
637 vnc_write(vs, (char *)&value, 1);
640 static void vnc_flush(VncState *vs)
642 if (vs->output.offset)
643 vnc_client_write(vs);
646 static uint8_t read_u8(uint8_t *data, size_t offset)
651 static uint16_t read_u16(uint8_t *data, size_t offset)
653 return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF);
656 static int32_t read_s32(uint8_t *data, size_t offset)
658 return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) |
659 (data[offset + 2] << 8) | data[offset + 3]);
662 static uint32_t read_u32(uint8_t *data, size_t offset)
664 return ((data[offset] << 24) | (data[offset + 1] << 16) |
665 (data[offset + 2] << 8) | data[offset + 3]);
668 static void client_cut_text(VncState *vs, size_t len, char *text)
672 static void pointer_event(VncState *vs, int button_mask, int x, int y)
677 if (button_mask & 0x01)
678 buttons |= MOUSE_EVENT_LBUTTON;
679 if (button_mask & 0x02)
680 buttons |= MOUSE_EVENT_MBUTTON;
681 if (button_mask & 0x04)
682 buttons |= MOUSE_EVENT_RBUTTON;
683 if (button_mask & 0x08)
685 if (button_mask & 0x10)
688 if (kbd_mouse_is_absolute()) {
689 kbd_mouse_event(x * 0x7FFF / vs->ds->width,
690 y * 0x7FFF / vs->ds->height,
693 static int last_x = -1;
694 static int last_y = -1;
697 kbd_mouse_event(x - last_x, y - last_y, dz, buttons);
704 static void reset_keys(VncState *vs)
707 for(i = 0; i < 256; i++) {
708 if (vs->modifiers_state[i]) {
710 kbd_put_keycode(0xe0);
711 kbd_put_keycode(i | 0x80);
712 vs->modifiers_state[i] = 0;
717 static void do_key_event(VncState *vs, int down, uint32_t sym)
721 keycode = keysym2scancode(vs->kbd_layout, sym & 0xFFFF);
723 /* QEMU console switch */
725 case 0x2a: /* Left Shift */
726 case 0x36: /* Right Shift */
727 case 0x1d: /* Left CTRL */
728 case 0x9d: /* Right CTRL */
729 case 0x38: /* Left ALT */
730 case 0xb8: /* Right ALT */
732 vs->modifiers_state[keycode] = 1;
734 vs->modifiers_state[keycode] = 0;
736 case 0x02 ... 0x0a: /* '1' to '9' keys */
737 if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) {
738 /* Reset the modifiers sent to the current console */
740 console_select(keycode - 0x02);
746 if (is_graphic_console()) {
748 kbd_put_keycode(0xe0);
750 kbd_put_keycode(keycode & 0x7f);
752 kbd_put_keycode(keycode | 0x80);
754 /* QEMU console emulation */
757 case 0x2a: /* Left Shift */
758 case 0x36: /* Right Shift */
759 case 0x1d: /* Left CTRL */
760 case 0x9d: /* Right CTRL */
761 case 0x38: /* Left ALT */
762 case 0xb8: /* Right ALT */
765 kbd_put_keysym(QEMU_KEY_UP);
768 kbd_put_keysym(QEMU_KEY_DOWN);
771 kbd_put_keysym(QEMU_KEY_LEFT);
774 kbd_put_keysym(QEMU_KEY_RIGHT);
777 kbd_put_keysym(QEMU_KEY_DELETE);
780 kbd_put_keysym(QEMU_KEY_HOME);
783 kbd_put_keysym(QEMU_KEY_END);
786 kbd_put_keysym(QEMU_KEY_PAGEUP);
789 kbd_put_keysym(QEMU_KEY_PAGEDOWN);
799 static void key_event(VncState *vs, int down, uint32_t sym)
801 if (sym >= 'A' && sym <= 'Z')
802 sym = sym - 'A' + 'a';
803 do_key_event(vs, down, sym);
806 static void framebuffer_update_request(VncState *vs, int incremental,
807 int x_position, int y_position,
813 char *old_row = vs->old_data + y_position * vs->ds->linesize;
815 for (i = 0; i < h; i++) {
816 vnc_set_bits(vs->dirty_row[y_position + i],
817 (vs->ds->width / 16), VNC_DIRTY_WORDS);
818 memset(old_row, 42, vs->ds->width * vs->depth);
819 old_row += vs->ds->linesize;
824 static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
830 vs->ds->dpy_copy = NULL;
832 for (i = n_encodings - 1; i >= 0; i--) {
833 switch (encodings[i]) {
837 case 1: /* CopyRect */
838 vs->ds->dpy_copy = vnc_copy;
840 case 5: /* Hextile */
843 case -223: /* DesktopResize */
852 static int compute_nbits(unsigned int val)
863 static void set_pixel_format(VncState *vs,
864 int bits_per_pixel, int depth,
865 int big_endian_flag, int true_color_flag,
866 int red_max, int green_max, int blue_max,
867 int red_shift, int green_shift, int blue_shift)
869 int host_big_endian_flag;
871 #ifdef WORDS_BIGENDIAN
872 host_big_endian_flag = 1;
874 host_big_endian_flag = 0;
876 if (!true_color_flag) {
878 vnc_client_error(vs);
881 if (bits_per_pixel == 32 &&
882 host_big_endian_flag == big_endian_flag &&
883 red_max == 0xff && green_max == 0xff && blue_max == 0xff &&
884 red_shift == 16 && green_shift == 8 && blue_shift == 0) {
886 vs->write_pixels = vnc_write_pixels_copy;
887 vs->send_hextile_tile = send_hextile_tile_32;
889 if (bits_per_pixel == 16 &&
890 host_big_endian_flag == big_endian_flag &&
891 red_max == 31 && green_max == 63 && blue_max == 31 &&
892 red_shift == 11 && green_shift == 5 && blue_shift == 0) {
894 vs->write_pixels = vnc_write_pixels_copy;
895 vs->send_hextile_tile = send_hextile_tile_16;
897 if (bits_per_pixel == 8 &&
898 red_max == 7 && green_max == 7 && blue_max == 3 &&
899 red_shift == 5 && green_shift == 2 && blue_shift == 0) {
901 vs->write_pixels = vnc_write_pixels_copy;
902 vs->send_hextile_tile = send_hextile_tile_8;
905 /* generic and slower case */
906 if (bits_per_pixel != 8 &&
907 bits_per_pixel != 16 &&
908 bits_per_pixel != 32)
911 vs->red_shift = red_shift;
912 vs->red_max = red_max;
913 vs->red_shift1 = 24 - compute_nbits(red_max);
914 vs->green_shift = green_shift;
915 vs->green_max = green_max;
916 vs->green_shift1 = 16 - compute_nbits(green_max);
917 vs->blue_shift = blue_shift;
918 vs->blue_max = blue_max;
919 vs->blue_shift1 = 8 - compute_nbits(blue_max);
920 vs->pix_bpp = bits_per_pixel / 8;
921 vs->pix_big_endian = big_endian_flag;
922 vs->write_pixels = vnc_write_pixels_generic;
923 vs->send_hextile_tile = send_hextile_tile_generic;
926 vnc_dpy_resize(vs->ds, vs->ds->width, vs->ds->height);
927 memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
928 memset(vs->old_data, 42, vs->ds->linesize * vs->ds->height);
934 static int protocol_client_msg(VncState *vs, char *data, size_t len)
944 set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5),
945 read_u8(data, 6), read_u8(data, 7),
946 read_u16(data, 8), read_u16(data, 10),
947 read_u16(data, 12), read_u8(data, 14),
948 read_u8(data, 15), read_u8(data, 16));
955 return 4 + (read_u16(data, 2) * 4);
957 limit = read_u16(data, 2);
958 for (i = 0; i < limit; i++) {
959 int32_t val = read_s32(data, 4 + (i * 4));
960 memcpy(data + 4 + (i * 4), &val, sizeof(val));
963 set_encodings(vs, (int32_t *)(data + 4), limit);
969 framebuffer_update_request(vs,
970 read_u8(data, 1), read_u16(data, 2), read_u16(data, 4),
971 read_u16(data, 6), read_u16(data, 8));
977 key_event(vs, read_u8(data, 1), read_u32(data, 4));
983 pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4));
990 return 8 + read_u32(data, 4);
992 client_cut_text(vs, read_u32(data, 4), data + 8);
995 printf("Msg: %d\n", data[0]);
996 vnc_client_error(vs);
1000 vnc_read_when(vs, protocol_client_msg, 1);
1004 static int protocol_client_init(VncState *vs, char *data, size_t len)
1006 char pad[3] = { 0, 0, 0 };
1008 vs->width = vs->ds->width;
1009 vs->height = vs->ds->height;
1010 vnc_write_u16(vs, vs->ds->width);
1011 vnc_write_u16(vs, vs->ds->height);
1013 vnc_write_u8(vs, vs->depth * 8); /* bits-per-pixel */
1014 vnc_write_u8(vs, vs->depth * 8); /* depth */
1015 #ifdef WORDS_BIGENDIAN
1016 vnc_write_u8(vs, 1); /* big-endian-flag */
1018 vnc_write_u8(vs, 0); /* big-endian-flag */
1020 vnc_write_u8(vs, 1); /* true-color-flag */
1021 if (vs->depth == 4) {
1022 vnc_write_u16(vs, 0xFF); /* red-max */
1023 vnc_write_u16(vs, 0xFF); /* green-max */
1024 vnc_write_u16(vs, 0xFF); /* blue-max */
1025 vnc_write_u8(vs, 16); /* red-shift */
1026 vnc_write_u8(vs, 8); /* green-shift */
1027 vnc_write_u8(vs, 0); /* blue-shift */
1028 vs->send_hextile_tile = send_hextile_tile_32;
1029 } else if (vs->depth == 2) {
1030 vnc_write_u16(vs, 31); /* red-max */
1031 vnc_write_u16(vs, 63); /* green-max */
1032 vnc_write_u16(vs, 31); /* blue-max */
1033 vnc_write_u8(vs, 11); /* red-shift */
1034 vnc_write_u8(vs, 5); /* green-shift */
1035 vnc_write_u8(vs, 0); /* blue-shift */
1036 vs->send_hextile_tile = send_hextile_tile_16;
1037 } else if (vs->depth == 1) {
1038 /* XXX: change QEMU pixel 8 bit pixel format to match the VNC one ? */
1039 vnc_write_u16(vs, 7); /* red-max */
1040 vnc_write_u16(vs, 7); /* green-max */
1041 vnc_write_u16(vs, 3); /* blue-max */
1042 vnc_write_u8(vs, 5); /* red-shift */
1043 vnc_write_u8(vs, 2); /* green-shift */
1044 vnc_write_u8(vs, 0); /* blue-shift */
1045 vs->send_hextile_tile = send_hextile_tile_8;
1047 vs->write_pixels = vnc_write_pixels_copy;
1049 vnc_write(vs, pad, 3); /* padding */
1051 vnc_write_u32(vs, 4);
1052 vnc_write(vs, "QEMU", 4);
1055 vnc_read_when(vs, protocol_client_msg, 1);
1060 static int protocol_version(VncState *vs, char *version, size_t len)
1065 memcpy(local, version, 12);
1068 if (sscanf(local, "RFB %03d.%03d\n", &maj, &min) != 2) {
1069 vnc_client_error(vs);
1073 vnc_write_u32(vs, 1); /* None */
1076 vnc_read_when(vs, protocol_client_init, 1);
1081 static void vnc_listen_read(void *opaque)
1083 VncState *vs = opaque;
1084 struct sockaddr_in addr;
1085 socklen_t addrlen = sizeof(addr);
1087 vs->csock = accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
1088 if (vs->csock != -1) {
1089 socket_set_nonblock(vs->csock);
1090 qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, opaque);
1091 vnc_write(vs, "RFB 003.003\n", 12);
1093 vnc_read_when(vs, protocol_version, 12);
1094 memset(vs->old_data, 0, vs->ds->linesize * vs->ds->height);
1095 memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
1097 vs->has_hextile = 0;
1098 vs->ds->dpy_copy = NULL;
1102 void vnc_display_init(DisplayState *ds, int display)
1104 struct sockaddr_in addr;
1105 int reuse_addr, ret;
1108 vs = qemu_mallocz(sizeof(VncState));
1120 if (!keyboard_layout)
1121 keyboard_layout = "en-us";
1123 vs->kbd_layout = init_keyboard_layout(keyboard_layout);
1124 if (!vs->kbd_layout)
1127 vs->lsock = socket(PF_INET, SOCK_STREAM, 0);
1128 if (vs->lsock == -1) {
1129 fprintf(stderr, "Could not create socket\n");
1133 addr.sin_family = AF_INET;
1134 addr.sin_port = htons(5900 + display);
1135 memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
1138 ret = setsockopt(vs->lsock, SOL_SOCKET, SO_REUSEADDR,
1139 (const char *)&reuse_addr, sizeof(reuse_addr));
1141 fprintf(stderr, "setsockopt() failed\n");
1145 if (bind(vs->lsock, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
1146 fprintf(stderr, "bind() failed\n");
1150 if (listen(vs->lsock, 1) == -1) {
1151 fprintf(stderr, "listen() failed\n");
1155 ret = qemu_set_fd_handler2(vs->lsock, vnc_listen_poll, vnc_listen_read, NULL, vs);
1160 vs->ds->data = NULL;
1161 vs->ds->dpy_update = vnc_dpy_update;
1162 vs->ds->dpy_resize = vnc_dpy_resize;
1163 vs->ds->dpy_refresh = vnc_dpy_refresh;
1165 memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
1167 vnc_dpy_resize(vs->ds, 640, 400);