| /* |
| * QEMU VNC display driver |
| * |
| * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws> |
| * Copyright (C) 2006 Fabrice Bellard |
| * Copyright (C) 2009 Red Hat, Inc |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #ifndef QEMU_VNC_H |
| #define QEMU_VNC_H |
| |
| #include "qemu/queue.h" |
| #include "qemu/thread.h" |
| #include "ui/console.h" |
| #include "audio/audio.h" |
| #include "qemu/bitmap.h" |
| #include "crypto/tlssession.h" |
| #include "qemu/buffer.h" |
| #include "io/channel-socket.h" |
| #include "io/channel-tls.h" |
| #include "io/net-listener.h" |
| #include "authz/base.h" |
| #include <zlib.h> |
| |
| #include "keymaps.h" |
| #include "vnc-palette.h" |
| #include "vnc-enc-zrle.h" |
| #include "ui/kbd-state.h" |
| |
| // #define _VNC_DEBUG 1 |
| |
| #ifdef _VNC_DEBUG |
| #define VNC_DEBUG(fmt, ...) do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
| #else |
| #define VNC_DEBUG(fmt, ...) do { } while (0) |
| #endif |
| |
| /***************************************************************************** |
| * |
| * Core data structures |
| * |
| *****************************************************************************/ |
| |
| typedef struct VncState VncState; |
| typedef struct VncJob VncJob; |
| typedef struct VncRect VncRect; |
| typedef struct VncRectEntry VncRectEntry; |
| |
| typedef int VncReadEvent(VncState *vs, uint8_t *data, size_t len); |
| |
| typedef void VncWritePixels(VncState *vs, void *data, int size); |
| |
| typedef void VncSendHextileTile(VncState *vs, |
| int x, int y, int w, int h, |
| void *last_bg, |
| void *last_fg, |
| int *has_bg, int *has_fg); |
| |
| /* VNC_DIRTY_PIXELS_PER_BIT is the number of dirty pixels represented |
| * by one bit in the dirty bitmap, should be a power of 2 */ |
| #define VNC_DIRTY_PIXELS_PER_BIT 16 |
| |
| /* VNC_MAX_WIDTH must be a multiple of VNC_DIRTY_PIXELS_PER_BIT. */ |
| |
| #define VNC_MAX_WIDTH ROUND_UP(2560, VNC_DIRTY_PIXELS_PER_BIT) |
| #define VNC_MAX_HEIGHT 2048 |
| |
| /* VNC_DIRTY_BITS is the number of bits in the dirty bitmap. */ |
| #define VNC_DIRTY_BITS (VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT) |
| |
| /* VNC_DIRTY_BPL (BPL = bits per line) might be greater than |
| * VNC_DIRTY_BITS due to alignment */ |
| #define VNC_DIRTY_BPL(x) (sizeof((x)->dirty) / VNC_MAX_HEIGHT * BITS_PER_BYTE) |
| |
| #define VNC_STAT_RECT 64 |
| #define VNC_STAT_COLS (VNC_MAX_WIDTH / VNC_STAT_RECT) |
| #define VNC_STAT_ROWS (VNC_MAX_HEIGHT / VNC_STAT_RECT) |
| |
| #define VNC_AUTH_CHALLENGE_SIZE 16 |
| |
| typedef struct VncDisplay VncDisplay; |
| |
| #include "vnc-auth-vencrypt.h" |
| #ifdef CONFIG_VNC_SASL |
| #include "vnc-auth-sasl.h" |
| #endif |
| #include "vnc-ws.h" |
| |
| struct VncRectStat |
| { |
| /* time of last 10 updates, to find update frequency */ |
| struct timeval times[10]; |
| int idx; |
| |
| double freq; /* Update frequency (in Hz) */ |
| bool updated; /* Already updated during this refresh */ |
| }; |
| |
| typedef struct VncRectStat VncRectStat; |
| |
| struct VncSurface |
| { |
| struct timeval last_freq_check; |
| DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT], |
| VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT); |
| VncRectStat stats[VNC_STAT_ROWS][VNC_STAT_COLS]; |
| pixman_image_t *fb; |
| pixman_format_code_t format; |
| }; |
| |
| typedef enum VncShareMode { |
| VNC_SHARE_MODE_CONNECTING = 1, |
| VNC_SHARE_MODE_SHARED, |
| VNC_SHARE_MODE_EXCLUSIVE, |
| VNC_SHARE_MODE_DISCONNECTED, |
| } VncShareMode; |
| |
| typedef enum VncSharePolicy { |
| VNC_SHARE_POLICY_IGNORE = 1, |
| VNC_SHARE_POLICY_ALLOW_EXCLUSIVE, |
| VNC_SHARE_POLICY_FORCE_SHARED, |
| } VncSharePolicy; |
| |
| struct VncDisplay |
| { |
| QTAILQ_HEAD(, VncState) clients; |
| int num_connecting; |
| int num_shared; |
| int num_exclusive; |
| int connections_limit; |
| VncSharePolicy share_policy; |
| QIONetListener *listener; |
| QIONetListener *wslistener; |
| DisplaySurface *ds; |
| DisplayChangeListener dcl; |
| kbd_layout_t *kbd_layout; |
| int lock_key_sync; |
| QEMUPutLEDEntry *led; |
| int ledstate; |
| QKbdState *kbd; |
| QemuMutex mutex; |
| |
| QEMUCursor *cursor; |
| int cursor_msize; |
| uint8_t *cursor_mask; |
| |
| struct VncSurface guest; /* guest visible surface (aka ds->surface) */ |
| pixman_image_t *server; /* vnc server surface */ |
| |
| const char *id; |
| QTAILQ_ENTRY(VncDisplay) next; |
| bool is_unix; |
| char *password; |
| time_t expires; |
| int auth; |
| int subauth; /* Used by VeNCrypt */ |
| int ws_auth; /* Used by websockets */ |
| int ws_subauth; /* Used by websockets */ |
| bool lossy; |
| bool non_adaptive; |
| QCryptoTLSCreds *tlscreds; |
| QAuthZ *tlsauthz; |
| char *tlsauthzid; |
| #ifdef CONFIG_VNC_SASL |
| VncDisplaySASL sasl; |
| #endif |
| |
| AudioState *audio_state; |
| }; |
| |
| typedef struct VncTight { |
| int type; |
| uint8_t quality; |
| uint8_t compression; |
| uint8_t pixel24; |
| Buffer tight; |
| Buffer tmp; |
| Buffer zlib; |
| Buffer gradient; |
| #ifdef CONFIG_VNC_JPEG |
| Buffer jpeg; |
| #endif |
| #ifdef CONFIG_VNC_PNG |
| Buffer png; |
| #endif |
| int levels[4]; |
| z_stream stream[4]; |
| } VncTight; |
| |
| typedef struct VncHextile { |
| VncSendHextileTile *send_tile; |
| } VncHextile; |
| |
| typedef struct VncZlib { |
| Buffer zlib; |
| Buffer tmp; |
| z_stream stream; |
| int level; |
| } VncZlib; |
| |
| typedef struct VncZrle { |
| int type; |
| Buffer fb; |
| Buffer zrle; |
| Buffer tmp; |
| Buffer zlib; |
| z_stream stream; |
| VncPalette palette; |
| } VncZrle; |
| |
| typedef struct VncZywrle { |
| int buf[VNC_ZRLE_TILE_WIDTH * VNC_ZRLE_TILE_HEIGHT]; |
| } VncZywrle; |
| |
| struct VncRect |
| { |
| int x; |
| int y; |
| int w; |
| int h; |
| }; |
| |
| struct VncRectEntry |
| { |
| struct VncRect rect; |
| QLIST_ENTRY(VncRectEntry) next; |
| }; |
| |
| struct VncJob |
| { |
| VncState *vs; |
| |
| QLIST_HEAD(, VncRectEntry) rectangles; |
| QTAILQ_ENTRY(VncJob) next; |
| }; |
| |
| typedef enum { |
| VNC_STATE_UPDATE_NONE, |
| VNC_STATE_UPDATE_INCREMENTAL, |
| VNC_STATE_UPDATE_FORCE, |
| } VncStateUpdate; |
| |
| #define VNC_MAGIC ((uint64_t)0x05b3f069b3d204bb) |
| |
| struct VncState |
| { |
| uint64_t magic; |
| QIOChannelSocket *sioc; /* The underlying socket */ |
| QIOChannel *ioc; /* The channel currently used for I/O */ |
| guint ioc_tag; |
| gboolean disconnecting; |
| |
| DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT], VNC_DIRTY_BITS); |
| uint8_t **lossy_rect; /* Not an Array to avoid costly memcpy in |
| * vnc-jobs-async.c */ |
| |
| VncDisplay *vd; |
| VncStateUpdate update; /* Most recent pending request from client */ |
| VncStateUpdate job_update; /* Currently processed by job thread */ |
| int has_dirty; |
| uint32_t features; |
| int absolute; |
| int last_x; |
| int last_y; |
| uint32_t last_bmask; |
| size_t client_width; /* limited to u16 by RFB proto */ |
| size_t client_height; /* limited to u16 by RFB proto */ |
| VncShareMode share_mode; |
| |
| uint32_t vnc_encoding; |
| |
| int major; |
| int minor; |
| |
| int auth; |
| int subauth; /* Used by VeNCrypt */ |
| char challenge[VNC_AUTH_CHALLENGE_SIZE]; |
| QCryptoTLSSession *tls; /* Borrowed pointer from channel, don't free */ |
| #ifdef CONFIG_VNC_SASL |
| VncStateSASL sasl; |
| #endif |
| bool encode_ws; |
| bool websocket; |
| |
| #ifdef CONFIG_VNC |
| VncClientInfo *info; |
| #endif |
| |
| /* Job thread bottom half has put data for a forced update |
| * into the output buffer. This offset points to the end of |
| * the update data in the output buffer. This lets us determine |
| * when a force update is fully sent to the client, allowing |
| * us to process further forced updates. */ |
| size_t force_update_offset; |
| /* We allow multiple incremental updates or audio capture |
| * samples to be queued in output buffer, provided the |
| * buffer size doesn't exceed this threshold. The value |
| * is calculating dynamically based on framebuffer size |
| * and audio sample settings in vnc_update_throttle_offset() */ |
| size_t throttle_output_offset; |
| Buffer output; |
| Buffer input; |
| /* current output mode information */ |
| VncWritePixels *write_pixels; |
| PixelFormat client_pf; |
| pixman_format_code_t client_format; |
| bool client_be; |
| |
| CaptureVoiceOut *audio_cap; |
| struct audsettings as; |
| |
| VncReadEvent *read_handler; |
| size_t read_handler_expect; |
| |
| bool abort; |
| QemuMutex output_mutex; |
| QEMUBH *bh; |
| Buffer jobs_buffer; |
| |
| /* Encoding specific, if you add something here, don't forget to |
| * update vnc_async_encoding_start() |
| */ |
| VncTight tight; |
| VncZlib zlib; |
| VncHextile hextile; |
| VncZrle zrle; |
| VncZywrle zywrle; |
| |
| Notifier mouse_mode_notifier; |
| |
| QTAILQ_ENTRY(VncState) next; |
| }; |
| |
| |
| /***************************************************************************** |
| * |
| * Authentication modes |
| * |
| *****************************************************************************/ |
| |
| enum { |
| VNC_AUTH_INVALID = 0, |
| VNC_AUTH_NONE = 1, |
| VNC_AUTH_VNC = 2, |
| VNC_AUTH_RA2 = 5, |
| VNC_AUTH_RA2NE = 6, |
| VNC_AUTH_TIGHT = 16, |
| VNC_AUTH_ULTRA = 17, |
| VNC_AUTH_TLS = 18, /* Supported in GTK-VNC & VINO */ |
| VNC_AUTH_VENCRYPT = 19, /* Supported in GTK-VNC & VeNCrypt */ |
| VNC_AUTH_SASL = 20, /* Supported in GTK-VNC & VINO */ |
| }; |
| |
| enum { |
| VNC_AUTH_VENCRYPT_PLAIN = 256, |
| VNC_AUTH_VENCRYPT_TLSNONE = 257, |
| VNC_AUTH_VENCRYPT_TLSVNC = 258, |
| VNC_AUTH_VENCRYPT_TLSPLAIN = 259, |
| VNC_AUTH_VENCRYPT_X509NONE = 260, |
| VNC_AUTH_VENCRYPT_X509VNC = 261, |
| VNC_AUTH_VENCRYPT_X509PLAIN = 262, |
| VNC_AUTH_VENCRYPT_X509SASL = 263, |
| VNC_AUTH_VENCRYPT_TLSSASL = 264, |
| }; |
| |
| |
| /***************************************************************************** |
| * |
| * Encoding types |
| * |
| *****************************************************************************/ |
| |
| #define VNC_ENCODING_RAW 0x00000000 |
| #define VNC_ENCODING_COPYRECT 0x00000001 |
| #define VNC_ENCODING_RRE 0x00000002 |
| #define VNC_ENCODING_CORRE 0x00000004 |
| #define VNC_ENCODING_HEXTILE 0x00000005 |
| #define VNC_ENCODING_ZLIB 0x00000006 |
| #define VNC_ENCODING_TIGHT 0x00000007 |
| #define VNC_ENCODING_ZLIBHEX 0x00000008 |
| #define VNC_ENCODING_TRLE 0x0000000f |
| #define VNC_ENCODING_ZRLE 0x00000010 |
| #define VNC_ENCODING_ZYWRLE 0x00000011 |
| #define VNC_ENCODING_COMPRESSLEVEL0 0xFFFFFF00 /* -256 */ |
| #define VNC_ENCODING_QUALITYLEVEL0 0xFFFFFFE0 /* -32 */ |
| #define VNC_ENCODING_XCURSOR 0xFFFFFF10 /* -240 */ |
| #define VNC_ENCODING_RICH_CURSOR 0xFFFFFF11 /* -239 */ |
| #define VNC_ENCODING_POINTER_POS 0xFFFFFF18 /* -232 */ |
| #define VNC_ENCODING_LASTRECT 0xFFFFFF20 /* -224 */ |
| #define VNC_ENCODING_DESKTOPRESIZE 0xFFFFFF21 /* -223 */ |
| #define VNC_ENCODING_POINTER_TYPE_CHANGE 0XFFFFFEFF /* -257 */ |
| #define VNC_ENCODING_EXT_KEY_EVENT 0XFFFFFEFE /* -258 */ |
| #define VNC_ENCODING_AUDIO 0XFFFFFEFD /* -259 */ |
| #define VNC_ENCODING_TIGHT_PNG 0xFFFFFEFC /* -260 */ |
| #define VNC_ENCODING_LED_STATE 0XFFFFFEFB /* -261 */ |
| #define VNC_ENCODING_WMVi 0x574D5669 |
| |
| /***************************************************************************** |
| * |
| * Other tight constants |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Vendors known by TightVNC: standard VNC/RealVNC, TridiaVNC, and TightVNC. |
| */ |
| |
| #define VNC_TIGHT_CCB_RESET_MASK (0x0f) |
| #define VNC_TIGHT_CCB_TYPE_MASK (0x0f << 4) |
| #define VNC_TIGHT_CCB_TYPE_FILL (0x08 << 4) |
| #define VNC_TIGHT_CCB_TYPE_JPEG (0x09 << 4) |
| #define VNC_TIGHT_CCB_TYPE_PNG (0x0A << 4) |
| #define VNC_TIGHT_CCB_BASIC_MAX (0x07 << 4) |
| #define VNC_TIGHT_CCB_BASIC_ZLIB (0x03 << 4) |
| #define VNC_TIGHT_CCB_BASIC_FILTER (0x04 << 4) |
| |
| /***************************************************************************** |
| * |
| * Features |
| * |
| *****************************************************************************/ |
| |
| #define VNC_FEATURE_RESIZE 0 |
| #define VNC_FEATURE_HEXTILE 1 |
| #define VNC_FEATURE_POINTER_TYPE_CHANGE 2 |
| #define VNC_FEATURE_WMVI 3 |
| #define VNC_FEATURE_TIGHT 4 |
| #define VNC_FEATURE_ZLIB 5 |
| #define VNC_FEATURE_COPYRECT 6 |
| #define VNC_FEATURE_RICH_CURSOR 7 |
| #define VNC_FEATURE_TIGHT_PNG 8 |
| #define VNC_FEATURE_ZRLE 9 |
| #define VNC_FEATURE_ZYWRLE 10 |
| #define VNC_FEATURE_LED_STATE 11 |
| |
| #define VNC_FEATURE_RESIZE_MASK (1 << VNC_FEATURE_RESIZE) |
| #define VNC_FEATURE_HEXTILE_MASK (1 << VNC_FEATURE_HEXTILE) |
| #define VNC_FEATURE_POINTER_TYPE_CHANGE_MASK (1 << VNC_FEATURE_POINTER_TYPE_CHANGE) |
| #define VNC_FEATURE_WMVI_MASK (1 << VNC_FEATURE_WMVI) |
| #define VNC_FEATURE_TIGHT_MASK (1 << VNC_FEATURE_TIGHT) |
| #define VNC_FEATURE_ZLIB_MASK (1 << VNC_FEATURE_ZLIB) |
| #define VNC_FEATURE_COPYRECT_MASK (1 << VNC_FEATURE_COPYRECT) |
| #define VNC_FEATURE_RICH_CURSOR_MASK (1 << VNC_FEATURE_RICH_CURSOR) |
| #define VNC_FEATURE_TIGHT_PNG_MASK (1 << VNC_FEATURE_TIGHT_PNG) |
| #define VNC_FEATURE_ZRLE_MASK (1 << VNC_FEATURE_ZRLE) |
| #define VNC_FEATURE_ZYWRLE_MASK (1 << VNC_FEATURE_ZYWRLE) |
| #define VNC_FEATURE_LED_STATE_MASK (1 << VNC_FEATURE_LED_STATE) |
| |
| |
| /* Client -> Server message IDs */ |
| #define VNC_MSG_CLIENT_SET_PIXEL_FORMAT 0 |
| #define VNC_MSG_CLIENT_SET_ENCODINGS 2 |
| #define VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST 3 |
| #define VNC_MSG_CLIENT_KEY_EVENT 4 |
| #define VNC_MSG_CLIENT_POINTER_EVENT 5 |
| #define VNC_MSG_CLIENT_CUT_TEXT 6 |
| #define VNC_MSG_CLIENT_VMWARE_0 127 |
| #define VNC_MSG_CLIENT_CALL_CONTROL 249 |
| #define VNC_MSG_CLIENT_XVP 250 |
| #define VNC_MSG_CLIENT_SET_DESKTOP_SIZE 251 |
| #define VNC_MSG_CLIENT_TIGHT 252 |
| #define VNC_MSG_CLIENT_GII 253 |
| #define VNC_MSG_CLIENT_VMWARE_1 254 |
| #define VNC_MSG_CLIENT_QEMU 255 |
| |
| /* Server -> Client message IDs */ |
| #define VNC_MSG_SERVER_FRAMEBUFFER_UPDATE 0 |
| #define VNC_MSG_SERVER_SET_COLOUR_MAP_ENTRIES 1 |
| #define VNC_MSG_SERVER_BELL 2 |
| #define VNC_MSG_SERVER_CUT_TEXT 3 |
| #define VNC_MSG_SERVER_VMWARE_0 127 |
| #define VNC_MSG_SERVER_CALL_CONTROL 249 |
| #define VNC_MSG_SERVER_XVP 250 |
| #define VNC_MSG_SERVER_TIGHT 252 |
| #define VNC_MSG_SERVER_GII 253 |
| #define VNC_MSG_SERVER_VMWARE_1 254 |
| #define VNC_MSG_SERVER_QEMU 255 |
| |
| |
| |
| /* QEMU client -> server message IDs */ |
| #define VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT 0 |
| #define VNC_MSG_CLIENT_QEMU_AUDIO 1 |
| |
| /* QEMU server -> client message IDs */ |
| #define VNC_MSG_SERVER_QEMU_AUDIO 1 |
| |
| |
| |
| /* QEMU client -> server audio message IDs */ |
| #define VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE 0 |
| #define VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE 1 |
| #define VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT 2 |
| |
| /* QEMU server -> client audio message IDs */ |
| #define VNC_MSG_SERVER_QEMU_AUDIO_END 0 |
| #define VNC_MSG_SERVER_QEMU_AUDIO_BEGIN 1 |
| #define VNC_MSG_SERVER_QEMU_AUDIO_DATA 2 |
| |
| |
| /***************************************************************************** |
| * |
| * Internal APIs |
| * |
| *****************************************************************************/ |
| |
| /* Event loop functions */ |
| gboolean vnc_client_io(QIOChannel *ioc, |
| GIOCondition condition, |
| void *opaque); |
| |
| size_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen); |
| size_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen); |
| |
| /* Protocol I/O functions */ |
| void vnc_write(VncState *vs, const void *data, size_t len); |
| void vnc_write_u32(VncState *vs, uint32_t value); |
| void vnc_write_s32(VncState *vs, int32_t value); |
| void vnc_write_u16(VncState *vs, uint16_t value); |
| void vnc_write_u8(VncState *vs, uint8_t value); |
| void vnc_flush(VncState *vs); |
| void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting); |
| void vnc_disconnect_finish(VncState *vs); |
| void vnc_start_protocol(VncState *vs); |
| |
| |
| /* Buffer I/O functions */ |
| uint32_t read_u32(uint8_t *data, size_t offset); |
| |
| /* Protocol stage functions */ |
| void vnc_client_error(VncState *vs); |
| size_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp); |
| |
| void start_client_init(VncState *vs); |
| void start_auth_vnc(VncState *vs); |
| |
| |
| /* Misc helpers */ |
| |
| static inline uint32_t vnc_has_feature(VncState *vs, int feature) { |
| return (vs->features & (1 << feature)); |
| } |
| |
| /* Framebuffer */ |
| void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h, |
| int32_t encoding); |
| |
| /* server fb is in PIXMAN_x8r8g8b8 */ |
| #define VNC_SERVER_FB_FORMAT PIXMAN_FORMAT(32, PIXMAN_TYPE_ARGB, 0, 8, 8, 8) |
| #define VNC_SERVER_FB_BITS (PIXMAN_FORMAT_BPP(VNC_SERVER_FB_FORMAT)) |
| #define VNC_SERVER_FB_BYTES ((VNC_SERVER_FB_BITS+7)/8) |
| |
| void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y); |
| int vnc_server_fb_stride(VncDisplay *vd); |
| |
| void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v); |
| double vnc_update_freq(VncState *vs, int x, int y, int w, int h); |
| void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h); |
| |
| /* Encodings */ |
| int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
| |
| int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
| |
| int vnc_hextile_send_framebuffer_update(VncState *vs, int x, |
| int y, int w, int h); |
| void vnc_hextile_set_pixel_conversion(VncState *vs, int generic); |
| |
| void *vnc_zlib_zalloc(void *x, unsigned items, unsigned size); |
| void vnc_zlib_zfree(void *x, void *addr); |
| int vnc_zlib_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
| void vnc_zlib_clear(VncState *vs); |
| |
| int vnc_tight_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
| int vnc_tight_png_send_framebuffer_update(VncState *vs, int x, int y, |
| int w, int h); |
| void vnc_tight_clear(VncState *vs); |
| |
| int vnc_zrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
| int vnc_zywrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h); |
| void vnc_zrle_clear(VncState *vs); |
| |
| #endif /* QEMU_VNC_H */ |