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pascal@17518
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1 text data bss dec hex filename
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pascal@17518
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2 3118 0 0 3118 c2e util-linux/fbvnc.o
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pascal@17518
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3 --- /dev/null
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pascal@17518
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4 +++ busybox/util-linux/fbvnc.c
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pascal@17518
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5 @@ -0,0 +1,551 @@
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pascal@17518
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6 +/* vi: set sw=4 ts=4: */
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pascal@17518
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7 +/*
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pascal@17518
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8 + * A small linux framebuffer VNC viewer
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pascal@17518
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9 + *
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pascal@17518
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10 + * pascal.bellard@ads-lu.com
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pascal@17518
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11 + *
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pascal@17518
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12 + * Based on Ali Gholami Rudi's fbvnc.c
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pascal@17518
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13 + * http://repo.or.cz/w/fbvnc.git
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pascal@17518
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14 + *
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pascal@17518
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15 + * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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pascal@17518
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16 + */
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pascal@17518
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17 +
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pascal@17518
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18 +//applet:IF_FBVNC(APPLET(fbvnc, BB_DIR_BIN, BB_SUID_DROP))
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pascal@17518
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19 +
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pascal@17518
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20 +//kbuild:lib-$(CONFIG_FBVNC) += fbvnc.o
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pascal@17518
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21 +
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pascal@17518
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22 +//config:config FBVNC
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pascal@17518
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23 +//config: bool "fbvnc"
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pascal@17518
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24 +//config: default n
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pascal@17518
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25 +//config: depends on PLATFORM_LINUX
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pascal@17518
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26 +//config: help
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pascal@17518
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27 +//config: A linux framebuffer VNC viewer.
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pascal@17518
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28 +
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pascal@17518
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29 +//usage:#define fbvnc_trivial_usage
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pascal@17518
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30 +//usage: "[VNC_SERVER] [PORT]"
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pascal@17518
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31 +//usage:#define fbvnc_full_usage "\n\n"
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pascal@17518
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32 +//usage: "A linux framebuffer VNC viewer."
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pascal@17518
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33 +//usage: "\nTo exit, move mouse to upper left corner and press ESC."
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pascal@17518
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34 +
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pascal@17518
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35 +#include "libbb.h"
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pascal@17518
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36 +#include "vnc.h"
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pascal@17518
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37 +
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pascal@17518
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38 +/* Stuff stolen from the kernel's fb.h */
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pascal@17518
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39 +#define FB_ACTIVATE_ALL 64
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pascal@17518
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40 +enum {
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pascal@17518
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41 + FBIOGET_VSCREENINFO = 0x4600,
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pascal@17518
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42 + FBIOPUT_VSCREENINFO = 0x4601,
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pascal@17518
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43 + FBIOGET_FSCREENINFO = 0x4602,
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pascal@17518
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44 + FBIOGETCMAP = 0x4604,
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pascal@17518
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45 + FBIOPUTCMAP = 0x4605
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pascal@17518
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46 +};
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pascal@17518
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47 +
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pascal@17518
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48 +struct fb_bitfield {
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pascal@17518
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49 + uint32_t offset; /* beginning of bitfield */
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pascal@17518
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50 + uint32_t length; /* length of bitfield */
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pascal@17518
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51 + uint32_t msb_right; /* !=0: Most significant bit is right */
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pascal@17518
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52 +};
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pascal@17518
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53 +struct fb_var_screeninfo {
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pascal@17518
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54 + uint32_t xres; /* visible resolution */
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pascal@17518
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55 + uint32_t yres;
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pascal@17518
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56 + uint32_t xres_virtual; /* virtual resolution */
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pascal@17518
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57 + uint32_t yres_virtual;
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pascal@17518
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58 + uint32_t xoffset; /* offset from virtual to visible */
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pascal@17518
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59 + uint32_t yoffset; /* resolution */
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pascal@17518
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60 +
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pascal@17518
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61 + uint32_t bits_per_pixel;
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pascal@17518
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62 + uint32_t grayscale; /* !=0 Graylevels instead of colors */
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pascal@17518
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63 +
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pascal@17518
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64 + struct fb_bitfield red; /* bitfield in fb mem if true color, */
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pascal@17518
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65 + struct fb_bitfield green; /* else only length is significant */
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pascal@17518
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66 + struct fb_bitfield blue;
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pascal@17518
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67 + struct fb_bitfield transp; /* transparency */
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pascal@17518
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68 +
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pascal@17518
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69 + uint32_t nonstd; /* !=0 Non standard pixel format */
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pascal@17518
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70 +
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pascal@17518
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71 + uint32_t activate; /* see FB_ACTIVATE_x */
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pascal@17518
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72 +
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pascal@17518
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73 + uint32_t height; /* height of picture in mm */
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pascal@17518
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74 + uint32_t width; /* width of picture in mm */
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pascal@17518
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75 +
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pascal@17518
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76 + uint32_t accel_flags; /* acceleration flags (hints) */
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pascal@17518
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77 +
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pascal@17518
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78 + /* Timing: All values in pixclocks, except pixclock (of course) */
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pascal@17518
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79 + uint32_t pixclock; /* pixel clock in ps (pico seconds) */
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pascal@17518
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80 + uint32_t left_margin; /* time from sync to picture */
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pascal@17518
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81 + uint32_t right_margin; /* time from picture to sync */
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pascal@17518
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82 + uint32_t upper_margin; /* time from sync to picture */
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pascal@17518
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83 + uint32_t lower_margin;
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pascal@17518
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84 + uint32_t hsync_len; /* length of horizontal sync */
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pascal@17518
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85 + uint32_t vsync_len; /* length of vertical sync */
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pascal@17518
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86 + uint32_t sync; /* see FB_SYNC_x */
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pascal@17518
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87 + uint32_t vmode; /* see FB_VMODE_x */
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pascal@17518
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88 + uint32_t reserved[6]; /* Reserved for future compatibility */
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pascal@17518
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89 +};
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pascal@17518
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90 +
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pascal@17518
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91 +#define DEFAULTFBDEV FB_0
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pascal@17518
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92 +
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pascal@17518
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93 +struct fb_fix_screeninfo {
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pascal@17518
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94 + char id[16]; /* identification string eg "TT Builtin" */
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pascal@17518
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95 + unsigned long smem_start; /* Start of frame buffer mem */
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pascal@17518
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96 + /* (physical address) */
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pascal@17518
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97 + uint32_t smem_len; /* Length of frame buffer mem */
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pascal@17518
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98 + uint32_t type; /* see FB_TYPE_* */
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pascal@17518
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99 + uint32_t type_aux; /* Interleave for interleaved Planes */
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pascal@17518
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100 + uint32_t visual; /* see FB_VISUAL_* */
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pascal@17518
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101 + uint16_t xpanstep; /* zero if no hardware panning */
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pascal@17518
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102 + uint16_t ypanstep; /* zero if no hardware panning */
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pascal@17518
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103 + uint16_t ywrapstep; /* zero if no hardware ywrap */
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pascal@17518
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104 + uint32_t line_length; /* length of a line in bytes */
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pascal@17518
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105 + unsigned long mmio_start; /* Start of Memory Mapped I/O */
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pascal@17518
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106 + /* (physical address) */
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pascal@17518
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107 + uint32_t mmio_len; /* Length of Memory Mapped I/O */
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pascal@17518
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108 + uint32_t accel; /* Indicate to driver which */
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pascal@17518
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109 + /* specific chip/card we have */
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pascal@17518
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110 + uint16_t reserved[3]; /* Reserved for future compatibility */
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pascal@17518
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111 +};
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pascal@17518
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112 +
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pascal@17518
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113 +struct fb_cmap {
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pascal@17518
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114 + uint32_t start; /* First entry */
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pascal@17518
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115 + uint32_t len; /* Number of entries */
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pascal@17518
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116 + uint16_t *red; /* Red values */
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pascal@17518
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117 + uint16_t *green;
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pascal@17518
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118 + uint16_t *blue;
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pascal@17518
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119 + uint16_t *transp; /* transparency, can be NULL */
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pascal@17518
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120 +};
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pascal@17518
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121 +
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pascal@17518
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122 +#define FB_VISUAL_TRUECOLOR 2 /* True color */
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pascal@17518
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123 +
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pascal@17518
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124 +#define COLORLEVELS (1 << 8)
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pascal@17518
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125 +
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pascal@17518
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126 +struct scroll_data {
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pascal@17518
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127 + int size;
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pascal@17518
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128 + int srv_size;
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pascal@17518
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129 + int offset;
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pascal@17518
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130 + int pos;
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pascal@17518
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131 +};
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pascal@17518
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132 +
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pascal@17518
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133 +struct globals {
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pascal@17518
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134 + struct termios term_orig;
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pascal@17518
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135 + struct pollfd ufds[3];
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pascal@17518
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136 +#define kbd_fd ufds[0].fd
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pascal@17518
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137 +#define vnc_fd ufds[1].fd
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pascal@17518
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138 +#define rat_fd ufds[2].fd
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pascal@17518
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139 + struct scroll_data scroll[2];
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pascal@17518
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140 +#define cols scroll[0].size
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pascal@17518
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141 +#define srv_cols scroll[0].srv_size
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pascal@17518
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142 +#define oc scroll[0].offset
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pascal@17518
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143 +#define mc scroll[0].pos
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pascal@17518
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144 +#define rows scroll[1].size
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pascal@17518
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145 +#define srv_rows scroll[1].srv_size
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pascal@17518
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146 +#define or scroll[1].offset
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pascal@17518
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147 +#define mr scroll[1].pos
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pascal@17518
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148 + int fb_fd;
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pascal@17518
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149 + void *fb_ptr;
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pascal@17518
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150 + int bpp;
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pascal@17518
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151 + int nr, ng, nb;
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pascal@17518
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152 + struct fb_var_screeninfo vinfo;
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pascal@17518
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153 + struct fb_fix_screeninfo finfo;
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pascal@17518
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154 + unsigned short red[COLORLEVELS], green[COLORLEVELS], blue[COLORLEVELS];
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pascal@17518
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155 +};
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pascal@17518
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156 +
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pascal@17518
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157 +#define G (*ptr_to_globals)
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pascal@17518
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158 +#define INIT_G() do { \
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pascal@17518
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159 + SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
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pascal@17518
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160 +} while (0)
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pascal@17518
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161 +
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pascal@17518
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162 +static int fb_len(void)
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pascal@17518
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163 +{
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pascal@17518
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164 + return G.finfo.line_length * G.vinfo.yres_virtual;
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pascal@17518
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165 +}
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pascal@17518
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166 +
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pascal@17518
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167 +static void fb_ioctl_cmap(int fct, struct fb_cmap *cmap)
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pascal@17518
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168 +{
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pascal@17518
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169 + if (G.finfo.visual == FB_VISUAL_TRUECOLOR)
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pascal@17518
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170 + return;
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pascal@17518
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171 + cmap->start = 0;
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pascal@17518
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172 + cmap->len = MAX(G.nr, MAX(G.ng, G.nb));
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pascal@17518
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173 + cmap->transp = NULL;
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pascal@17518
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174 + xioctl(G.fb_fd, fct, cmap);
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pascal@17518
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175 +}
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pascal@17518
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176 +
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pascal@17518
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177 +static void fb_cmap_save(int save)
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pascal@17518
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178 +{
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pascal@17518
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179 + struct fb_cmap cmap;
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pascal@17518
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180 +
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pascal@17518
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181 + cmap.red = G.red;
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pascal@17518
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182 + cmap.green = G.green;
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pascal@17518
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183 + cmap.blue = G.blue;
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pascal@17518
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184 + fb_ioctl_cmap(save ? FBIOGETCMAP : FBIOPUTCMAP, &cmap);
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pascal@17518
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185 +}
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pascal@17518
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186 +
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pascal@17518
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187 +static void fb_build_cmap(unsigned short *color, int n)
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pascal@17518
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188 +{
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pascal@17518
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189 + int i, inc = 65535 / (n - 1);
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pascal@17518
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190 +
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pascal@17518
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191 + for (i = 0; n--; i += inc)
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pascal@17518
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192 + *color++ = i;
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pascal@17518
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193 +}
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pascal@17518
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194 +
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pascal@17518
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195 +static void fb_cmap(void)
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pascal@17518
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196 +{
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pascal@17518
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197 + unsigned short red[COLORLEVELS], green[COLORLEVELS], blue[COLORLEVELS];
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pascal@17518
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198 + struct fb_cmap cmap;
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pascal@17518
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199 +
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pascal@17518
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200 + fb_build_cmap(cmap.red = red, G.nr);
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pascal@17518
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201 + fb_build_cmap(cmap.green = green, G.ng);
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pascal@17518
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202 + fb_build_cmap(cmap.blue = blue, G.nb);
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pascal@17518
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203 + fb_ioctl_cmap(FBIOPUTCMAP, &cmap);
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pascal@17518
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204 +}
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pascal@17518
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205 +
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pascal@17518
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206 +static void fb_init(void)
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pascal@17518
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207 +{
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pascal@17518
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208 + G.fb_fd = xopen(DEFAULTFBDEV, O_RDWR);
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pascal@17518
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209 + xioctl(G.fb_fd, FBIOGET_VSCREENINFO, &G.vinfo);
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pascal@17518
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210 + xioctl(G.fb_fd, FBIOGET_FSCREENINFO, &G.finfo);
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pascal@17518
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211 + close_on_exec_on(G.fb_fd);
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pascal@17518
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212 + G.fb_ptr = mmap(NULL, fb_len(), PROT_READ | PROT_WRITE, MAP_SHARED, G.fb_fd, 0);
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pascal@17518
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213 + if (G.fb_ptr == MAP_FAILED)
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pascal@17518
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214 + bb_perror_msg_and_die("mmap");
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pascal@17518
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215 + G.bpp = (G.vinfo.bits_per_pixel + 7) >> 3;
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pascal@17518
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216 + G.nr = 1 << G.vinfo.red.length;
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pascal@17518
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217 + G.nb = 1 << G.vinfo.blue.length;
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pascal@17518
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218 + G.ng = 1 << G.vinfo.green.length;
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pascal@17518
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219 + fb_cmap_save(1);
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pascal@17518
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220 + fb_cmap();
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pascal@17518
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221 +}
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pascal@17518
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222 +
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pascal@17518
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223 +static void fb_free(void)
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pascal@17518
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224 +{
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pascal@17518
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225 + fb_cmap_save(0);
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pascal@17518
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226 + munmap(G.fb_ptr, fb_len());
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pascal@17518
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227 + close(G.fb_fd);
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pascal@17518
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228 +}
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pascal@17518
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229 +
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pascal@17518
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230 +#define fb_rows vinfo.yres
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pascal@17518
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231 +#define fb_cols vinfo.xres
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pascal@17518
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232 +
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pascal@17518
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233 +static void fb_set(int r, int c, void *mem, int len)
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pascal@17518
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234 +{
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pascal@17518
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235 + memcpy(G.fb_ptr + (r + G.vinfo.yoffset) * G.finfo.line_length +
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pascal@17518
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236 + (c + G.vinfo.xoffset) * G.bpp, mem, len * G.bpp);
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pascal@17518
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237 +}
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pascal@17518
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238 +
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pascal@17518
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239 +#define line_buffer bb_common_bufsiz1
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pascal@17518
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240 +#define MAXPIX (sizeof(line_buffer)/sizeof(uint32_t))
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pascal@17518
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241 +
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pascal@17518
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242 +static void skip(int len)
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pascal@17518
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243 +{
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pascal@17518
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244 + int n;
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pascal@17518
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245 + while (len > 0 && (n = read(G.vnc_fd, line_buffer,
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pascal@17518
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246 + MIN(len, sizeof(line_buffer)))) > 0)
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pascal@17518
|
247 + len -= n;
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pascal@17518
|
248 +}
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pascal@17518
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249 +
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pascal@17518
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250 +static void vnc_init(void)
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pascal@17518
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251 +{
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pascal@17518
|
252 + struct vnc_client_init clientinit;
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pascal@17518
|
253 + struct vnc_server_init serverinit;
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pascal@17518
|
254 + struct vnc_client_pixelfmt pixfmt_cmd;
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pascal@17518
|
255 + int connstat = VNC_CONN_FAILED;
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pascal@17518
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256 +
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pascal@17518
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257 + write(G.vnc_fd, "RFB 003.003\n", 12);
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pascal@17518
|
258 + skip(12);
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pascal@17518
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259 +
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pascal@17518
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260 + xread(G.vnc_fd, &connstat, sizeof(connstat));
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pascal@17518
|
261 +
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pascal@17518
|
262 + if (ntohl(connstat) != VNC_CONN_NOAUTH)
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pascal@17518
|
263 + bb_perror_msg_and_die("vnc auth");
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pascal@17518
|
264 +
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pascal@17518
|
265 + clientinit.shared = 1;
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pascal@17518
|
266 + write(G.vnc_fd, &clientinit, sizeof(clientinit));
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pascal@17518
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267 + read(G.vnc_fd, &serverinit, sizeof(serverinit));
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pascal@17518
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268 +
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pascal@17518
|
269 + fb_init();
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pascal@17518
|
270 + G.srv_cols = ntohs(serverinit.w);
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pascal@17518
|
271 + G.srv_rows = ntohs(serverinit.h);
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pascal@17518
|
272 + G.cols = MIN(G.srv_cols, G.fb_cols);
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pascal@17518
|
273 + G.rows = MIN(G.srv_rows, G.fb_rows);
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pascal@17518
|
274 + G.mr = G.rows / 2;
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pascal@17518
|
275 + G.mc = G.cols / 2;
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pascal@17518
|
276 +
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pascal@17518
|
277 + skip(ntohl(serverinit.len));
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pascal@17518
|
278 + pixfmt_cmd.type = VNC_CLIENT_PIXFMT;
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pascal@17518
|
279 + pixfmt_cmd.format.bigendian = 0;
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pascal@17518
|
280 + pixfmt_cmd.format.truecolor = 1;
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pascal@17518
|
281 + pixfmt_cmd.format.bpp =
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pascal@17518
|
282 + pixfmt_cmd.format.depth = G.bpp << 3;
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pascal@17518
|
283 + pixfmt_cmd.format.rmax = htons(G.nr - 1);
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pascal@17518
|
284 + pixfmt_cmd.format.gmax = htons(G.ng - 1);
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pascal@17518
|
285 + pixfmt_cmd.format.bmax = htons(G.nb - 1);
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pascal@17518
|
286 + pixfmt_cmd.format.rshl = G.vinfo.red.offset;
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pascal@17518
|
287 + pixfmt_cmd.format.gshl = G.vinfo.green.offset;
|
pascal@17518
|
288 + pixfmt_cmd.format.bshl = G.vinfo.blue.offset;
|
pascal@17518
|
289 + write(G.vnc_fd, &pixfmt_cmd, sizeof(pixfmt_cmd));
|
pascal@17518
|
290 +}
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pascal@17518
|
291 +
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pascal@17518
|
292 +static void vnc_refresh(int inc)
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pascal@17518
|
293 +{
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pascal@17518
|
294 + struct vnc_client_fbup fbup_req;
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pascal@17518
|
295 + fbup_req.type = VNC_CLIENT_FBUP;
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pascal@17518
|
296 + fbup_req.inc = inc;
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pascal@17518
|
297 + fbup_req.x = htons(G.oc);
|
pascal@17518
|
298 + fbup_req.y = htons(G.or);
|
pascal@17518
|
299 + fbup_req.w = htons(G.oc + G.cols);
|
pascal@17518
|
300 + fbup_req.h = htons(G.or + G.rows);
|
pascal@17518
|
301 + write(G.vnc_fd, &fbup_req, sizeof(fbup_req));
|
pascal@17518
|
302 +}
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pascal@17518
|
303 +
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pascal@17518
|
304 +static void cleanup(void)
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pascal@17518
|
305 +{
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pascal@17518
|
306 + const char *reset = "\x1b[?25h" "\x1b[2J\x1b[H";
|
pascal@17518
|
307 + fb_free();
|
pascal@17518
|
308 + tcsetattr_stdin_TCSANOW(&G.term_orig);
|
pascal@17518
|
309 + write(STDOUT_FILENO, reset, strlen(reset));
|
pascal@17518
|
310 + if (ENABLE_FEATURE_CLEAN_UP) {
|
pascal@17518
|
311 + close(G.vnc_fd);
|
pascal@17518
|
312 + close(G.rat_fd);
|
pascal@17518
|
313 + }
|
pascal@17518
|
314 +}
|
pascal@17518
|
315 +
|
pascal@17518
|
316 +static void killed(int code) NORETURN;
|
pascal@17518
|
317 +static void killed(int code)
|
pascal@17518
|
318 +{
|
pascal@17518
|
319 + cleanup();
|
pascal@17518
|
320 + if (code > EXIT_FAILURE)
|
pascal@17518
|
321 + kill_myself_with_sig(code);
|
pascal@17518
|
322 + exit(code);
|
pascal@17518
|
323 +}
|
pascal@17518
|
324 +
|
pascal@17518
|
325 +static void vnc_event(void)
|
pascal@17518
|
326 +{
|
pascal@17518
|
327 + struct vnc_rect uprect;
|
pascal@17518
|
328 + union {
|
pascal@17518
|
329 + struct vnc_server_fbup fbup;
|
pascal@17518
|
330 + struct vnc_server_cuttext cuttext;
|
pascal@17518
|
331 + struct vnc_server_colormap colormap;
|
pascal@17518
|
332 + } msg;
|
pascal@17518
|
333 + int n;
|
pascal@17518
|
334 +
|
pascal@17518
|
335 + switch (xread_char(G.vnc_fd)) {
|
pascal@17518
|
336 + case VNC_SERVER_FBUP:
|
pascal@17518
|
337 + xread(G.vnc_fd, &msg.fbup.pad, sizeof(msg.fbup) - 1);
|
pascal@17518
|
338 + n = ntohs(msg.fbup.n);
|
pascal@17518
|
339 + while (n--) {
|
pascal@17518
|
340 + int x, y, w, h, l, i;
|
pascal@17518
|
341 + xread(G.vnc_fd, &uprect, sizeof(uprect));
|
pascal@17518
|
342 + if (uprect.enc != 0)
|
pascal@17518
|
343 + killed(1);
|
pascal@17518
|
344 + i = 0;
|
pascal@17518
|
345 + x = ntohs(uprect.x) - G.oc;
|
pascal@17518
|
346 + y = ntohs(uprect.y) - G.or;
|
pascal@17518
|
347 + w = ntohs(uprect.w);
|
pascal@17518
|
348 + h = ntohs(uprect.h);
|
pascal@17518
|
349 + l = MIN(w, G.cols - x);
|
pascal@17518
|
350 + if (x < 0) {
|
pascal@17518
|
351 + l = MIN(w + x, G.cols);
|
pascal@17518
|
352 + i = -x;
|
pascal@17518
|
353 + x = 0;
|
pascal@17518
|
354 + }
|
pascal@17518
|
355 + for (; h--; y++) {
|
pascal@17518
|
356 + int a, b, c = i;
|
pascal@17518
|
357 + for (a = b = 0; w > b; b += a, c = 0) {
|
pascal@17518
|
358 + int len;
|
pascal@17518
|
359 + a = MIN(w - b, MAXPIX);
|
pascal@17518
|
360 + len = MIN(a, l - b) - c;
|
pascal@17518
|
361 + xread(G.vnc_fd, line_buffer, a * G.bpp);
|
pascal@17518
|
362 + if (y >= 0 && y < G.rows && len > 0)
|
pascal@17518
|
363 + fb_set(y, x + b,
|
pascal@17518
|
364 + line_buffer + (c * G.bpp),
|
pascal@17518
|
365 + len);
|
pascal@17518
|
366 + }
|
pascal@17518
|
367 + }
|
pascal@17518
|
368 + }
|
pascal@17518
|
369 + break;
|
pascal@17518
|
370 + case VNC_SERVER_BELL:
|
pascal@17518
|
371 + break;
|
pascal@17518
|
372 + case VNC_SERVER_CUTTEXT:
|
pascal@17518
|
373 + xread(G.vnc_fd, &msg.cuttext.pad1, sizeof(msg.cuttext) - 1);
|
pascal@17518
|
374 + skip(ntohl(msg.cuttext.len));
|
pascal@17518
|
375 + break;
|
pascal@17518
|
376 + case VNC_SERVER_COLORMAP:
|
pascal@17518
|
377 + xread(G.vnc_fd, &msg.colormap.pad, sizeof(msg.colormap) - 1);
|
pascal@17518
|
378 + skip(ntohs(msg.colormap.n) * 3 * 2);
|
pascal@17518
|
379 + break;
|
pascal@17518
|
380 + default:
|
pascal@17518
|
381 + killed(1);
|
pascal@17518
|
382 + }
|
pascal@17518
|
383 +}
|
pascal@17518
|
384 +
|
pascal@17518
|
385 +static int update_scroll(struct scroll_data *s)
|
pascal@17518
|
386 +{
|
pascal@17518
|
387 + int shift = s->size / 5;
|
pascal@17518
|
388 + int max = s->srv_size - s->size;
|
pascal@17518
|
389 + int status = 0;
|
pascal@17518
|
390 + if (s->pos < s->offset) {
|
pascal@17518
|
391 + if ((s->offset -= shift) < 0)
|
pascal@17518
|
392 + s->offset = 0;
|
pascal@17518
|
393 + }
|
pascal@17518
|
394 + else if (s->pos >= s->offset + s->size && s->offset < max) {
|
pascal@17518
|
395 + if ((s->offset += shift) > max)
|
pascal@17518
|
396 + s->offset = max;
|
pascal@17518
|
397 + }
|
pascal@17518
|
398 + else status++;
|
pascal@17518
|
399 + s->pos = MAX(s->offset, MIN(s->offset + s->size - 1, s->pos));
|
pascal@17518
|
400 + return status;
|
pascal@17518
|
401 +}
|
pascal@17518
|
402 +
|
pascal@17518
|
403 +static void rat_event(void)
|
pascal@17518
|
404 +{
|
pascal@17518
|
405 + signed char ie[3];
|
pascal@17518
|
406 + struct vnc_client_ratevent me = {VNC_CLIENT_RATEVENT};
|
pascal@17518
|
407 + int mask = 0;
|
pascal@17518
|
408 + int refresh;
|
pascal@17518
|
409 +
|
pascal@17518
|
410 + xread(G.rat_fd, &ie, sizeof(ie));
|
pascal@17518
|
411 + G.mc += ie[1];
|
pascal@17518
|
412 + G.mr -= ie[2];
|
pascal@17518
|
413 + refresh = 2 - update_scroll(&G.scroll[0]) - update_scroll(&G.scroll[1]);
|
pascal@17518
|
414 + if (ie[0] & 0x01)
|
pascal@17518
|
415 + mask |= VNC_BUTTON1_MASK;
|
pascal@17518
|
416 + if (ie[0] & 0x04)
|
pascal@17518
|
417 + mask |= VNC_BUTTON2_MASK;
|
pascal@17518
|
418 + if (ie[0] & 0x02)
|
pascal@17518
|
419 + mask |= VNC_BUTTON3_MASK;
|
pascal@17518
|
420 + me.y = htons(G.mr);
|
pascal@17518
|
421 + me.x = htons(G.mc);
|
pascal@17518
|
422 + me.mask = mask;
|
pascal@17518
|
423 + write(G.vnc_fd, &me, sizeof(me));
|
pascal@17518
|
424 + if (refresh)
|
pascal@17518
|
425 + vnc_refresh(0);
|
pascal@17518
|
426 +}
|
pascal@17518
|
427 +
|
pascal@17518
|
428 +static int press(int key, int down)
|
pascal@17518
|
429 +{
|
pascal@17518
|
430 + struct vnc_client_keyevent ke = {VNC_CLIENT_KEYEVENT};
|
pascal@17518
|
431 + ke.key = htonl(key);
|
pascal@17518
|
432 + ke.down = down;
|
pascal@17518
|
433 + return write(G.vnc_fd, &ke, sizeof(ke));
|
pascal@17518
|
434 +}
|
pascal@17518
|
435 +
|
pascal@17518
|
436 +static void kbd_event(void)
|
pascal@17518
|
437 +{
|
pascal@17518
|
438 + char key[1024];
|
pascal@17518
|
439 + int i, nr;
|
pascal@17518
|
440 +
|
pascal@17518
|
441 + if ((nr = read(0, key, sizeof(key))) <= 0 )
|
pascal@17518
|
442 + killed(1);
|
pascal@17518
|
443 + for (i = 0; i < nr; i++) {
|
pascal@17518
|
444 + int k = -1;
|
pascal@17518
|
445 + int mod[4];
|
pascal@17518
|
446 + int nmod = 0;
|
pascal@17518
|
447 + switch (key[i]) {
|
pascal@17518
|
448 + case 0x08:
|
pascal@17518
|
449 + case 0x7f:
|
pascal@17518
|
450 + k = 0xff08;
|
pascal@17518
|
451 + break;
|
pascal@17518
|
452 + case 0x09:
|
pascal@17518
|
453 + k = 0xff09;
|
pascal@17518
|
454 + break;
|
pascal@17518
|
455 + case 0x1b:
|
pascal@17518
|
456 + if (G.oc + G.mc + G.or + G.mr == 0)
|
pascal@17518
|
457 + killed(0);
|
pascal@17518
|
458 + if (i + 2 < nr && key[i + 1] == '[') {
|
pascal@17518
|
459 + if (key[i + 2] == 'A')
|
pascal@17518
|
460 + k = 0xff52;
|
pascal@17518
|
461 + if (key[i + 2] == 'B')
|
pascal@17518
|
462 + k = 0xff54;
|
pascal@17518
|
463 + if (key[i + 2] == 'C')
|
pascal@17518
|
464 + k = 0xff53;
|
pascal@17518
|
465 + if (key[i + 2] == 'D')
|
pascal@17518
|
466 + k = 0xff51;
|
pascal@17518
|
467 + if (key[i + 2] == 'H')
|
pascal@17518
|
468 + k = 0xff50;
|
pascal@17518
|
469 + if (k > 0) {
|
pascal@17518
|
470 + i += 2;
|
pascal@17518
|
471 + break;
|
pascal@17518
|
472 + }
|
pascal@17518
|
473 + }
|
pascal@17518
|
474 + k = 0xff1b;
|
pascal@17518
|
475 + if (i + 1 < nr) {
|
pascal@17518
|
476 + mod[nmod++] = 0xffe9;
|
pascal@17518
|
477 + k = key[++i];
|
pascal@17518
|
478 + }
|
pascal@17518
|
479 + break;
|
pascal@17518
|
480 + case 0x0d:
|
pascal@17518
|
481 + k = 0xff0d;
|
pascal@17518
|
482 + break;
|
pascal@17518
|
483 + case 0x0c: /* ^L: redraw */
|
pascal@17518
|
484 + vnc_refresh(0);
|
pascal@17518
|
485 + default:
|
pascal@17518
|
486 + k = (unsigned char) key[i];
|
pascal@17518
|
487 + }
|
pascal@17518
|
488 + if ((k >= 'A' && k <= 'Z') || strchr(":\"<>?{}|+_()*&^%$#@!~", k))
|
pascal@17518
|
489 + mod[nmod++] = 0xffe1;
|
pascal@17518
|
490 + if (k >= 1 && k <= 26) {
|
pascal@17518
|
491 + k += 'a' - 1;
|
pascal@17518
|
492 + mod[nmod++] = 0xffe3;
|
pascal@17518
|
493 + }
|
pascal@17518
|
494 + if (k > 0) {
|
pascal@17518
|
495 + int j;
|
pascal@17518
|
496 + mod[nmod] = k;
|
pascal@17518
|
497 + for (j = 0; j <= nmod; j++)
|
pascal@17518
|
498 + press(mod[j], 1);
|
pascal@17518
|
499 + press(k, 0);
|
pascal@17518
|
500 + for (j = 0; j < nmod; j++)
|
pascal@17518
|
501 + press(mod[j], 0);
|
pascal@17518
|
502 + }
|
pascal@17518
|
503 + }
|
pascal@17518
|
504 +}
|
pascal@17518
|
505 +
|
pascal@17518
|
506 +static void term_setup(void)
|
pascal@17518
|
507 +{
|
pascal@17518
|
508 + struct termios termios;
|
pascal@17518
|
509 + const char *init = "\x1b[?25l" "\x1b[2J\x1b[H" "** fbvnc **";
|
pascal@17518
|
510 +
|
pascal@17518
|
511 + write(STDOUT_FILENO, init, strlen(init));
|
pascal@17518
|
512 + tcgetattr (STDIN_FILENO, &termios);
|
pascal@17518
|
513 + G.term_orig = termios;
|
pascal@17518
|
514 + cfmakeraw(&termios);
|
pascal@17518
|
515 + tcsetattr_stdin_TCSANOW(&termios);
|
pascal@17518
|
516 +}
|
pascal@17518
|
517 +
|
pascal@17518
|
518 +int fbvnc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
pascal@17518
|
519 +int fbvnc_main(int argc, char **argv)
|
pascal@17518
|
520 +{
|
pascal@17518
|
521 + char *host = (char *) "127.0.0.1";
|
pascal@17518
|
522 + int port, pending = 0;
|
pascal@17518
|
523 +
|
pascal@17518
|
524 + INIT_G();
|
pascal@17518
|
525 + if (argc >= 2)
|
pascal@17518
|
526 + host = argv[1];
|
pascal@17518
|
527 + port = bb_lookup_port((argc >= 3) ? argv[2] : "vnc", "tcp", 5900);
|
pascal@17518
|
528 + G.vnc_fd = create_and_connect_stream_or_die(host, port);
|
pascal@17518
|
529 + vnc_init();
|
pascal@17518
|
530 + G.rat_fd = open("/dev/input/mice", O_RDONLY);
|
pascal@17518
|
531 + term_setup();
|
pascal@17518
|
532 + atexit(cleanup);
|
pascal@17518
|
533 + bb_signals(BB_FATAL_SIGS, killed);
|
pascal@17518
|
534 +
|
pascal@17518
|
535 + G.ufds[0].events =
|
pascal@17518
|
536 + G.ufds[1].events =
|
pascal@17518
|
537 + G.ufds[2].events = POLLIN;
|
pascal@17518
|
538 + vnc_refresh(0);
|
pascal@17518
|
539 + while (1) {
|
pascal@17518
|
540 + int status = poll(G.ufds, 3, 500);
|
pascal@17518
|
541 + if (status == -1 && errno != EINTR)
|
pascal@17518
|
542 + killed(1);
|
pascal@17518
|
543 + if (!status)
|
pascal@17518
|
544 + continue;
|
pascal@17518
|
545 + if (G.ufds[0].revents & POLLIN)
|
pascal@17518
|
546 + kbd_event();
|
pascal@17518
|
547 + if (G.ufds[1].revents & POLLIN) {
|
pascal@17518
|
548 + vnc_event();
|
pascal@17518
|
549 + pending = 0;
|
pascal@17518
|
550 + }
|
pascal@17518
|
551 + if (G.ufds[2].revents & POLLIN)
|
pascal@17518
|
552 + rat_event();
|
pascal@17518
|
553 + if (!pending++)
|
pascal@17518
|
554 + vnc_refresh(1);
|
pascal@17518
|
555 + }
|
pascal@17518
|
556 +}
|
pascal@17518
|
557 --- /dev/null
|
pascal@17518
|
558 +++ busybox/util-linux/vnc.h
|
pascal@17518
|
559 @@ -0,0 +1,122 @@
|
pascal@17518
|
560 +#define VNC_CONN_FAILED 0
|
pascal@17518
|
561 +#define VNC_CONN_NOAUTH 1
|
pascal@17518
|
562 +#define VNC_CONN_AUTH 2
|
pascal@17518
|
563 +
|
pascal@17518
|
564 +#define VNC_AUTH_OK 0
|
pascal@17518
|
565 +#define VNC_AUTH_FAILED 1
|
pascal@17518
|
566 +#define VNC_AUTH_TOOMANY 2
|
pascal@17518
|
567 +
|
pascal@17518
|
568 +#define VNC_SERVER_FBUP 0
|
pascal@17518
|
569 +#define VNC_SERVER_COLORMAP 1
|
pascal@17518
|
570 +#define VNC_SERVER_BELL 2
|
pascal@17518
|
571 +#define VNC_SERVER_CUTTEXT 3
|
pascal@17518
|
572 +
|
pascal@17518
|
573 +#define VNC_CLIENT_PIXFMT 0
|
pascal@17518
|
574 +#define VNC_CLIENT_COLORMAP 1
|
pascal@17518
|
575 +#define VNC_CLIENT_SETENC 2
|
pascal@17518
|
576 +#define VNC_CLIENT_FBUP 3
|
pascal@17518
|
577 +#define VNC_CLIENT_KEYEVENT 4
|
pascal@17518
|
578 +#define VNC_CLIENT_RATEVENT 5
|
pascal@17518
|
579 +#define VNC_CLIENT_CUTTEXT 6
|
pascal@17518
|
580 +
|
pascal@17518
|
581 +#define VNC_ENC_RAW 0
|
pascal@17518
|
582 +#define VNC_ENC_COPYRECT 1
|
pascal@17518
|
583 +#define VNC_ENC_RRE 2
|
pascal@17518
|
584 +#define VNC_ENC_CORRE 4
|
pascal@17518
|
585 +#define VNC_ENC_HEXTILE 5
|
pascal@17518
|
586 +
|
pascal@17518
|
587 +#define VNC_BUTTON1_MASK 0x1
|
pascal@17518
|
588 +#define VNC_BUTTON2_MASK 0x2
|
pascal@17518
|
589 +#define VNC_BUTTON3_MASK 0x4
|
pascal@17518
|
590 +
|
pascal@17518
|
591 +typedef unsigned char u8;
|
pascal@17518
|
592 +typedef unsigned short u16;
|
pascal@17518
|
593 +typedef unsigned int u32;
|
pascal@17518
|
594 +
|
pascal@17518
|
595 +struct vnc_pixelfmt {
|
pascal@17518
|
596 + u8 bpp;
|
pascal@17518
|
597 + u8 depth;
|
pascal@17518
|
598 + u8 bigendian;
|
pascal@17518
|
599 + u8 truecolor;
|
pascal@17518
|
600 + u16 rmax;
|
pascal@17518
|
601 + u16 gmax;
|
pascal@17518
|
602 + u16 bmax;
|
pascal@17518
|
603 + u8 rshl;
|
pascal@17518
|
604 + u8 gshl;
|
pascal@17518
|
605 + u8 bshl;
|
pascal@17518
|
606 +
|
pascal@17518
|
607 + u8 pad1;
|
pascal@17518
|
608 + u16 pad2;
|
pascal@17518
|
609 +};
|
pascal@17518
|
610 +
|
pascal@17518
|
611 +struct vnc_client_init {
|
pascal@17518
|
612 + u8 shared;
|
pascal@17518
|
613 +};
|
pascal@17518
|
614 +
|
pascal@17518
|
615 +struct vnc_server_init {
|
pascal@17518
|
616 + u16 w;
|
pascal@17518
|
617 + u16 h;
|
pascal@17518
|
618 + struct vnc_pixelfmt fmt;
|
pascal@17518
|
619 + u32 len;
|
pascal@17518
|
620 + /* char name[len]; */
|
pascal@17518
|
621 +};
|
pascal@17518
|
622 +
|
pascal@17518
|
623 +struct vnc_rect {
|
pascal@17518
|
624 + u16 x, y;
|
pascal@17518
|
625 + u16 w, h;
|
pascal@17518
|
626 + u32 enc;
|
pascal@17518
|
627 + /* rect bytes */
|
pascal@17518
|
628 +};
|
pascal@17518
|
629 +
|
pascal@17518
|
630 +struct vnc_server_fbup {
|
pascal@17518
|
631 + u8 type;
|
pascal@17518
|
632 + u8 pad;
|
pascal@17518
|
633 + u16 n;
|
pascal@17518
|
634 + /* struct vnc_rect rects[n]; */
|
pascal@17518
|
635 +};
|
pascal@17518
|
636 +
|
pascal@17518
|
637 +struct vnc_server_cuttext {
|
pascal@17518
|
638 + u8 type;
|
pascal@17518
|
639 + u8 pad1;
|
pascal@17518
|
640 + u16 pad2;
|
pascal@17518
|
641 + u32 len;
|
pascal@17518
|
642 + /* char text[length] */
|
pascal@17518
|
643 +};
|
pascal@17518
|
644 +
|
pascal@17518
|
645 +struct vnc_server_colormap {
|
pascal@17518
|
646 + u8 type;
|
pascal@17518
|
647 + u8 pad;
|
pascal@17518
|
648 + u16 first;
|
pascal@17518
|
649 + u16 n;
|
pascal@17518
|
650 + /* u8 colors[n * 3 * 2]; */
|
pascal@17518
|
651 +};
|
pascal@17518
|
652 +
|
pascal@17518
|
653 +struct vnc_client_pixelfmt {
|
pascal@17518
|
654 + u8 type;
|
pascal@17518
|
655 + u8 pad1;
|
pascal@17518
|
656 + u16 pad2;
|
pascal@17518
|
657 + struct vnc_pixelfmt format;
|
pascal@17518
|
658 +};
|
pascal@17518
|
659 +
|
pascal@17518
|
660 +struct vnc_client_fbup {
|
pascal@17518
|
661 + u8 type;
|
pascal@17518
|
662 + u8 inc;
|
pascal@17518
|
663 + u16 x;
|
pascal@17518
|
664 + u16 y;
|
pascal@17518
|
665 + u16 w;
|
pascal@17518
|
666 + u16 h;
|
pascal@17518
|
667 +};
|
pascal@17518
|
668 +
|
pascal@17518
|
669 +struct vnc_client_keyevent {
|
pascal@17518
|
670 + u8 type;
|
pascal@17518
|
671 + u8 down;
|
pascal@17518
|
672 + u16 pad;
|
pascal@17518
|
673 + u32 key;
|
pascal@17518
|
674 +};
|
pascal@17518
|
675 +
|
pascal@17518
|
676 +struct vnc_client_ratevent {
|
pascal@17518
|
677 + u8 type;
|
pascal@17518
|
678 + u8 mask;
|
pascal@17518
|
679 + u16 x;
|
pascal@17518
|
680 + u16 y;
|
pascal@17518
|
681 +};
|