include/ui/console.h: Delete is_surface_bgr()
[qemu/ar7.git] / ui / vnc.h
blobd4f3e1555809bca5eebe7477a56ba2855ebd738a
1 /*
2 * QEMU VNC display driver
4 * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
5 * Copyright (C) 2006 Fabrice Bellard
6 * Copyright (C) 2009 Red Hat, Inc
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
27 #ifndef QEMU_VNC_H
28 #define QEMU_VNC_H
30 #include "qemu/queue.h"
31 #include "qemu/thread.h"
32 #include "ui/console.h"
33 #include "audio/audio.h"
34 #include "qemu/bitmap.h"
35 #include "crypto/tlssession.h"
36 #include "qemu/buffer.h"
37 #include "io/channel-socket.h"
38 #include "io/channel-tls.h"
39 #include "io/net-listener.h"
40 #include "authz/base.h"
41 #include <zlib.h>
43 #include "keymaps.h"
44 #include "vnc-palette.h"
45 #include "vnc-enc-zrle.h"
46 #include "ui/kbd-state.h"
48 // #define _VNC_DEBUG 1
50 #ifdef _VNC_DEBUG
51 #define VNC_DEBUG(fmt, ...) do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
52 #else
53 #define VNC_DEBUG(fmt, ...) do { } while (0)
54 #endif
56 /*****************************************************************************
58 * Core data structures
60 *****************************************************************************/
62 typedef struct VncState VncState;
63 typedef struct VncJob VncJob;
64 typedef struct VncRect VncRect;
65 typedef struct VncRectEntry VncRectEntry;
67 typedef int VncReadEvent(VncState *vs, uint8_t *data, size_t len);
69 typedef void VncWritePixels(VncState *vs, void *data, int size);
71 typedef void VncSendHextileTile(VncState *vs,
72 int x, int y, int w, int h,
73 void *last_bg,
74 void *last_fg,
75 int *has_bg, int *has_fg);
77 /* VNC_DIRTY_PIXELS_PER_BIT is the number of dirty pixels represented
78 * by one bit in the dirty bitmap, should be a power of 2 */
79 #define VNC_DIRTY_PIXELS_PER_BIT 16
81 /* VNC_MAX_WIDTH must be a multiple of VNC_DIRTY_PIXELS_PER_BIT. */
83 #define VNC_MAX_WIDTH ROUND_UP(2560, VNC_DIRTY_PIXELS_PER_BIT)
84 #define VNC_MAX_HEIGHT 2048
86 /* VNC_DIRTY_BITS is the number of bits in the dirty bitmap. */
87 #define VNC_DIRTY_BITS (VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT)
89 /* VNC_DIRTY_BPL (BPL = bits per line) might be greater than
90 * VNC_DIRTY_BITS due to alignment */
91 #define VNC_DIRTY_BPL(x) (sizeof((x)->dirty) / VNC_MAX_HEIGHT * BITS_PER_BYTE)
93 #define VNC_STAT_RECT 64
94 #define VNC_STAT_COLS (VNC_MAX_WIDTH / VNC_STAT_RECT)
95 #define VNC_STAT_ROWS (VNC_MAX_HEIGHT / VNC_STAT_RECT)
97 #define VNC_AUTH_CHALLENGE_SIZE 16
99 typedef struct VncDisplay VncDisplay;
101 #include "vnc-auth-vencrypt.h"
102 #ifdef CONFIG_VNC_SASL
103 #include "vnc-auth-sasl.h"
104 #endif
105 #include "vnc-ws.h"
107 struct VncRectStat
109 /* time of last 10 updates, to find update frequency */
110 struct timeval times[10];
111 int idx;
113 double freq; /* Update frequency (in Hz) */
114 bool updated; /* Already updated during this refresh */
117 typedef struct VncRectStat VncRectStat;
119 struct VncSurface
121 struct timeval last_freq_check;
122 DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT],
123 VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT);
124 VncRectStat stats[VNC_STAT_ROWS][VNC_STAT_COLS];
125 pixman_image_t *fb;
126 pixman_format_code_t format;
129 typedef enum VncShareMode {
130 VNC_SHARE_MODE_CONNECTING = 1,
131 VNC_SHARE_MODE_SHARED,
132 VNC_SHARE_MODE_EXCLUSIVE,
133 VNC_SHARE_MODE_DISCONNECTED,
134 } VncShareMode;
136 typedef enum VncSharePolicy {
137 VNC_SHARE_POLICY_IGNORE = 1,
138 VNC_SHARE_POLICY_ALLOW_EXCLUSIVE,
139 VNC_SHARE_POLICY_FORCE_SHARED,
140 } VncSharePolicy;
142 struct VncDisplay
144 QTAILQ_HEAD(, VncState) clients;
145 int num_connecting;
146 int num_shared;
147 int num_exclusive;
148 int connections_limit;
149 VncSharePolicy share_policy;
150 QIONetListener *listener;
151 QIONetListener *wslistener;
152 DisplaySurface *ds;
153 DisplayChangeListener dcl;
154 kbd_layout_t *kbd_layout;
155 int lock_key_sync;
156 QEMUPutLEDEntry *led;
157 int ledstate;
158 QKbdState *kbd;
159 QemuMutex mutex;
161 QEMUCursor *cursor;
162 int cursor_msize;
163 uint8_t *cursor_mask;
165 struct VncSurface guest; /* guest visible surface (aka ds->surface) */
166 pixman_image_t *server; /* vnc server surface */
167 int true_width; /* server surface width before rounding up */
169 const char *id;
170 QTAILQ_ENTRY(VncDisplay) next;
171 bool is_unix;
172 char *password;
173 time_t expires;
174 int auth;
175 int subauth; /* Used by VeNCrypt */
176 int ws_auth; /* Used by websockets */
177 int ws_subauth; /* Used by websockets */
178 bool lossy;
179 bool non_adaptive;
180 bool power_control;
181 QCryptoTLSCreds *tlscreds;
182 QAuthZ *tlsauthz;
183 char *tlsauthzid;
184 #ifdef CONFIG_VNC_SASL
185 VncDisplaySASL sasl;
186 #endif
188 AudioState *audio_state;
191 typedef struct VncTight {
192 int type;
193 uint8_t quality;
194 uint8_t compression;
195 uint8_t pixel24;
196 Buffer tight;
197 Buffer tmp;
198 Buffer zlib;
199 Buffer gradient;
200 #ifdef CONFIG_VNC_JPEG
201 Buffer jpeg;
202 #endif
203 #ifdef CONFIG_VNC_PNG
204 Buffer png;
205 #endif
206 int levels[4];
207 z_stream stream[4];
208 } VncTight;
210 typedef struct VncHextile {
211 VncSendHextileTile *send_tile;
212 } VncHextile;
214 typedef struct VncZlib {
215 Buffer zlib;
216 Buffer tmp;
217 z_stream stream;
218 int level;
219 } VncZlib;
221 typedef struct VncZrle {
222 int type;
223 Buffer fb;
224 Buffer zrle;
225 Buffer tmp;
226 Buffer zlib;
227 z_stream stream;
228 VncPalette palette;
229 } VncZrle;
231 typedef struct VncZywrle {
232 int buf[VNC_ZRLE_TILE_WIDTH * VNC_ZRLE_TILE_HEIGHT];
233 } VncZywrle;
235 struct VncRect
237 int x;
238 int y;
239 int w;
240 int h;
243 struct VncRectEntry
245 struct VncRect rect;
246 QLIST_ENTRY(VncRectEntry) next;
249 struct VncJob
251 VncState *vs;
253 QLIST_HEAD(, VncRectEntry) rectangles;
254 QTAILQ_ENTRY(VncJob) next;
257 typedef enum {
258 VNC_STATE_UPDATE_NONE,
259 VNC_STATE_UPDATE_INCREMENTAL,
260 VNC_STATE_UPDATE_FORCE,
261 } VncStateUpdate;
263 #define VNC_MAGIC ((uint64_t)0x05b3f069b3d204bb)
265 struct VncState
267 uint64_t magic;
268 QIOChannelSocket *sioc; /* The underlying socket */
269 QIOChannel *ioc; /* The channel currently used for I/O */
270 guint ioc_tag;
271 gboolean disconnecting;
273 DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT], VNC_DIRTY_BITS);
274 uint8_t **lossy_rect; /* Not an Array to avoid costly memcpy in
275 * vnc-jobs-async.c */
277 VncDisplay *vd;
278 VncStateUpdate update; /* Most recent pending request from client */
279 VncStateUpdate job_update; /* Currently processed by job thread */
280 int has_dirty;
281 uint32_t features;
282 int absolute;
283 int last_x;
284 int last_y;
285 uint32_t last_bmask;
286 size_t client_width; /* limited to u16 by RFB proto */
287 size_t client_height; /* limited to u16 by RFB proto */
288 VncShareMode share_mode;
290 uint32_t vnc_encoding;
292 int major;
293 int minor;
295 int auth;
296 int subauth; /* Used by VeNCrypt */
297 char challenge[VNC_AUTH_CHALLENGE_SIZE];
298 QCryptoTLSSession *tls; /* Borrowed pointer from channel, don't free */
299 #ifdef CONFIG_VNC_SASL
300 VncStateSASL sasl;
301 #endif
302 bool encode_ws;
303 bool websocket;
305 #ifdef CONFIG_VNC
306 VncClientInfo *info;
307 #endif
309 /* Job thread bottom half has put data for a forced update
310 * into the output buffer. This offset points to the end of
311 * the update data in the output buffer. This lets us determine
312 * when a force update is fully sent to the client, allowing
313 * us to process further forced updates. */
314 size_t force_update_offset;
315 /* We allow multiple incremental updates or audio capture
316 * samples to be queued in output buffer, provided the
317 * buffer size doesn't exceed this threshold. The value
318 * is calculating dynamically based on framebuffer size
319 * and audio sample settings in vnc_update_throttle_offset() */
320 size_t throttle_output_offset;
321 Buffer output;
322 Buffer input;
323 /* current output mode information */
324 VncWritePixels *write_pixels;
325 PixelFormat client_pf;
326 pixman_format_code_t client_format;
327 bool client_be;
329 CaptureVoiceOut *audio_cap;
330 struct audsettings as;
332 VncReadEvent *read_handler;
333 size_t read_handler_expect;
335 bool abort;
336 QemuMutex output_mutex;
337 QEMUBH *bh;
338 Buffer jobs_buffer;
340 /* Encoding specific, if you add something here, don't forget to
341 * update vnc_async_encoding_start()
343 VncTight *tight;
344 VncZlib zlib;
345 VncHextile hextile;
346 VncZrle *zrle;
347 VncZywrle zywrle;
349 Notifier mouse_mode_notifier;
351 QTAILQ_ENTRY(VncState) next;
355 /*****************************************************************************
357 * Authentication modes
359 *****************************************************************************/
361 enum {
362 VNC_AUTH_INVALID = 0,
363 VNC_AUTH_NONE = 1,
364 VNC_AUTH_VNC = 2,
365 VNC_AUTH_RA2 = 5,
366 VNC_AUTH_RA2NE = 6,
367 VNC_AUTH_TIGHT = 16,
368 VNC_AUTH_ULTRA = 17,
369 VNC_AUTH_TLS = 18, /* Supported in GTK-VNC & VINO */
370 VNC_AUTH_VENCRYPT = 19, /* Supported in GTK-VNC & VeNCrypt */
371 VNC_AUTH_SASL = 20, /* Supported in GTK-VNC & VINO */
374 enum {
375 VNC_AUTH_VENCRYPT_PLAIN = 256,
376 VNC_AUTH_VENCRYPT_TLSNONE = 257,
377 VNC_AUTH_VENCRYPT_TLSVNC = 258,
378 VNC_AUTH_VENCRYPT_TLSPLAIN = 259,
379 VNC_AUTH_VENCRYPT_X509NONE = 260,
380 VNC_AUTH_VENCRYPT_X509VNC = 261,
381 VNC_AUTH_VENCRYPT_X509PLAIN = 262,
382 VNC_AUTH_VENCRYPT_X509SASL = 263,
383 VNC_AUTH_VENCRYPT_TLSSASL = 264,
387 /*****************************************************************************
389 * Encoding types
391 *****************************************************************************/
393 #define VNC_ENCODING_RAW 0x00000000
394 #define VNC_ENCODING_COPYRECT 0x00000001
395 #define VNC_ENCODING_RRE 0x00000002
396 #define VNC_ENCODING_CORRE 0x00000004
397 #define VNC_ENCODING_HEXTILE 0x00000005
398 #define VNC_ENCODING_ZLIB 0x00000006
399 #define VNC_ENCODING_TIGHT 0x00000007
400 #define VNC_ENCODING_ZLIBHEX 0x00000008
401 #define VNC_ENCODING_TRLE 0x0000000f
402 #define VNC_ENCODING_ZRLE 0x00000010
403 #define VNC_ENCODING_ZYWRLE 0x00000011
404 #define VNC_ENCODING_COMPRESSLEVEL0 0xFFFFFF00 /* -256 */
405 #define VNC_ENCODING_QUALITYLEVEL0 0xFFFFFFE0 /* -32 */
406 #define VNC_ENCODING_XCURSOR 0xFFFFFF10 /* -240 */
407 #define VNC_ENCODING_RICH_CURSOR 0xFFFFFF11 /* -239 */
408 #define VNC_ENCODING_POINTER_POS 0xFFFFFF18 /* -232 */
409 #define VNC_ENCODING_LASTRECT 0xFFFFFF20 /* -224 */
410 #define VNC_ENCODING_DESKTOPRESIZE 0xFFFFFF21 /* -223 */
411 #define VNC_ENCODING_POINTER_TYPE_CHANGE 0XFFFFFEFF /* -257 */
412 #define VNC_ENCODING_EXT_KEY_EVENT 0XFFFFFEFE /* -258 */
413 #define VNC_ENCODING_AUDIO 0XFFFFFEFD /* -259 */
414 #define VNC_ENCODING_TIGHT_PNG 0xFFFFFEFC /* -260 */
415 #define VNC_ENCODING_LED_STATE 0XFFFFFEFB /* -261 */
416 #define VNC_ENCODING_DESKTOP_RESIZE_EXT 0XFFFFFECC /* -308 */
417 #define VNC_ENCODING_XVP 0XFFFFFECB /* -309 */
418 #define VNC_ENCODING_ALPHA_CURSOR 0XFFFFFEC6 /* -314 */
419 #define VNC_ENCODING_WMVi 0x574D5669
421 /*****************************************************************************
423 * Other tight constants
425 *****************************************************************************/
428 * Vendors known by TightVNC: standard VNC/RealVNC, TridiaVNC, and TightVNC.
431 #define VNC_TIGHT_CCB_RESET_MASK (0x0f)
432 #define VNC_TIGHT_CCB_TYPE_MASK (0x0f << 4)
433 #define VNC_TIGHT_CCB_TYPE_FILL (0x08 << 4)
434 #define VNC_TIGHT_CCB_TYPE_JPEG (0x09 << 4)
435 #define VNC_TIGHT_CCB_TYPE_PNG (0x0A << 4)
436 #define VNC_TIGHT_CCB_BASIC_MAX (0x07 << 4)
437 #define VNC_TIGHT_CCB_BASIC_ZLIB (0x03 << 4)
438 #define VNC_TIGHT_CCB_BASIC_FILTER (0x04 << 4)
440 /*****************************************************************************
442 * Features
444 *****************************************************************************/
446 enum VncFeatures {
447 VNC_FEATURE_RESIZE,
448 VNC_FEATURE_RESIZE_EXT,
449 VNC_FEATURE_HEXTILE,
450 VNC_FEATURE_POINTER_TYPE_CHANGE,
451 VNC_FEATURE_WMVI,
452 VNC_FEATURE_TIGHT,
453 VNC_FEATURE_ZLIB,
454 VNC_FEATURE_RICH_CURSOR,
455 VNC_FEATURE_ALPHA_CURSOR,
456 VNC_FEATURE_TIGHT_PNG,
457 VNC_FEATURE_ZRLE,
458 VNC_FEATURE_ZYWRLE,
459 VNC_FEATURE_LED_STATE,
460 VNC_FEATURE_XVP,
463 #define VNC_FEATURE_RESIZE_MASK (1 << VNC_FEATURE_RESIZE)
464 #define VNC_FEATURE_RESIZE_EXT_MASK (1 << VNC_FEATURE_RESIZE_EXT)
465 #define VNC_FEATURE_HEXTILE_MASK (1 << VNC_FEATURE_HEXTILE)
466 #define VNC_FEATURE_POINTER_TYPE_CHANGE_MASK (1 << VNC_FEATURE_POINTER_TYPE_CHANGE)
467 #define VNC_FEATURE_WMVI_MASK (1 << VNC_FEATURE_WMVI)
468 #define VNC_FEATURE_TIGHT_MASK (1 << VNC_FEATURE_TIGHT)
469 #define VNC_FEATURE_ZLIB_MASK (1 << VNC_FEATURE_ZLIB)
470 #define VNC_FEATURE_RICH_CURSOR_MASK (1 << VNC_FEATURE_RICH_CURSOR)
471 #define VNC_FEATURE_ALPHA_CURSOR_MASK (1 << VNC_FEATURE_ALPHA_CURSOR)
472 #define VNC_FEATURE_TIGHT_PNG_MASK (1 << VNC_FEATURE_TIGHT_PNG)
473 #define VNC_FEATURE_ZRLE_MASK (1 << VNC_FEATURE_ZRLE)
474 #define VNC_FEATURE_ZYWRLE_MASK (1 << VNC_FEATURE_ZYWRLE)
475 #define VNC_FEATURE_LED_STATE_MASK (1 << VNC_FEATURE_LED_STATE)
476 #define VNC_FEATURE_XVP_MASK (1 << VNC_FEATURE_XVP)
479 /* Client -> Server message IDs */
480 #define VNC_MSG_CLIENT_SET_PIXEL_FORMAT 0
481 #define VNC_MSG_CLIENT_SET_ENCODINGS 2
482 #define VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST 3
483 #define VNC_MSG_CLIENT_KEY_EVENT 4
484 #define VNC_MSG_CLIENT_POINTER_EVENT 5
485 #define VNC_MSG_CLIENT_CUT_TEXT 6
486 #define VNC_MSG_CLIENT_VMWARE_0 127
487 #define VNC_MSG_CLIENT_CALL_CONTROL 249
488 #define VNC_MSG_CLIENT_XVP 250
489 #define VNC_MSG_CLIENT_SET_DESKTOP_SIZE 251
490 #define VNC_MSG_CLIENT_TIGHT 252
491 #define VNC_MSG_CLIENT_GII 253
492 #define VNC_MSG_CLIENT_VMWARE_1 254
493 #define VNC_MSG_CLIENT_QEMU 255
495 /* Server -> Client message IDs */
496 #define VNC_MSG_SERVER_FRAMEBUFFER_UPDATE 0
497 #define VNC_MSG_SERVER_SET_COLOUR_MAP_ENTRIES 1
498 #define VNC_MSG_SERVER_BELL 2
499 #define VNC_MSG_SERVER_CUT_TEXT 3
500 #define VNC_MSG_SERVER_VMWARE_0 127
501 #define VNC_MSG_SERVER_CALL_CONTROL 249
502 #define VNC_MSG_SERVER_XVP 250
503 #define VNC_MSG_SERVER_TIGHT 252
504 #define VNC_MSG_SERVER_GII 253
505 #define VNC_MSG_SERVER_VMWARE_1 254
506 #define VNC_MSG_SERVER_QEMU 255
510 /* QEMU client -> server message IDs */
511 #define VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT 0
512 #define VNC_MSG_CLIENT_QEMU_AUDIO 1
514 /* QEMU server -> client message IDs */
515 #define VNC_MSG_SERVER_QEMU_AUDIO 1
519 /* QEMU client -> server audio message IDs */
520 #define VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE 0
521 #define VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE 1
522 #define VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT 2
524 /* QEMU server -> client audio message IDs */
525 #define VNC_MSG_SERVER_QEMU_AUDIO_END 0
526 #define VNC_MSG_SERVER_QEMU_AUDIO_BEGIN 1
527 #define VNC_MSG_SERVER_QEMU_AUDIO_DATA 2
529 /* XVP server -> client status code */
530 #define VNC_XVP_CODE_FAIL 0
531 #define VNC_XVP_CODE_INIT 1
533 /* XVP client -> server action request */
534 #define VNC_XVP_ACTION_SHUTDOWN 2
535 #define VNC_XVP_ACTION_REBOOT 3
536 #define VNC_XVP_ACTION_RESET 4
539 /*****************************************************************************
541 * Internal APIs
543 *****************************************************************************/
545 /* Event loop functions */
546 gboolean vnc_client_io(QIOChannel *ioc,
547 GIOCondition condition,
548 void *opaque);
550 size_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen);
551 size_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen);
553 /* Protocol I/O functions */
554 void vnc_write(VncState *vs, const void *data, size_t len);
555 void vnc_write_u32(VncState *vs, uint32_t value);
556 void vnc_write_s32(VncState *vs, int32_t value);
557 void vnc_write_u16(VncState *vs, uint16_t value);
558 void vnc_write_u8(VncState *vs, uint8_t value);
559 void vnc_flush(VncState *vs);
560 void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting);
561 void vnc_disconnect_finish(VncState *vs);
562 void vnc_start_protocol(VncState *vs);
565 /* Buffer I/O functions */
566 uint32_t read_u32(uint8_t *data, size_t offset);
568 /* Protocol stage functions */
569 void vnc_client_error(VncState *vs);
570 size_t vnc_client_io_error(VncState *vs, ssize_t ret, Error *err);
572 void start_client_init(VncState *vs);
573 void start_auth_vnc(VncState *vs);
576 /* Misc helpers */
578 static inline uint32_t vnc_has_feature(VncState *vs, int feature) {
579 return (vs->features & (1 << feature));
582 /* Framebuffer */
583 void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
584 int32_t encoding);
586 /* server fb is in PIXMAN_x8r8g8b8 */
587 #define VNC_SERVER_FB_FORMAT PIXMAN_FORMAT(32, PIXMAN_TYPE_ARGB, 0, 8, 8, 8)
588 #define VNC_SERVER_FB_BITS (PIXMAN_FORMAT_BPP(VNC_SERVER_FB_FORMAT))
589 #define VNC_SERVER_FB_BYTES ((VNC_SERVER_FB_BITS+7)/8)
591 void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y);
592 int vnc_server_fb_stride(VncDisplay *vd);
594 void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v);
595 double vnc_update_freq(VncState *vs, int x, int y, int w, int h);
596 void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h);
598 /* Encodings */
599 int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
601 int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
603 int vnc_hextile_send_framebuffer_update(VncState *vs, int x,
604 int y, int w, int h);
605 void vnc_hextile_set_pixel_conversion(VncState *vs, int generic);
607 void *vnc_zlib_zalloc(void *x, unsigned items, unsigned size);
608 void vnc_zlib_zfree(void *x, void *addr);
609 int vnc_zlib_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
610 void vnc_zlib_clear(VncState *vs);
612 int vnc_tight_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
613 int vnc_tight_png_send_framebuffer_update(VncState *vs, int x, int y,
614 int w, int h);
615 void vnc_tight_clear(VncState *vs);
617 int vnc_zrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
618 int vnc_zywrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
619 void vnc_zrle_clear(VncState *vs);
621 #endif /* QEMU_VNC_H */