Had to add UTF-8 functions utf8_length, utf8_next, utf8_advance.

Changed an odd strcpy to a more appropriate strcat.

Check to for overruns before they happen instead of afterwards.

code = 1, sym = 0xFF1B (Escape) scancode = 41 (Escape)
code = 2, sym = 0x31 (1) scancode = 30 (1)
code = 3, sym = 0x32 (2) scancode = 31 (2)
code = 4, sym = 0x33 (3) scancode = 32 (3)
code = 5, sym = 0x34 (4) scancode = 33 (4)
code = 6, sym = 0x35 (5) scancode = 34 (5)
code = 7, sym = 0x36 (6) scancode = 35 (6)
code = 8, sym = 0x37 (7) scancode = 36 (7)
code = 9, sym = 0x38 (8) scancode = 37 (8)
code = 10, sym = 0x39 (9) scancode = 38 (9)
code = 11, sym = 0x30 (0) scancode = 39 (0)
code = 12, sym = 0x2D (minus) scancode = 45 (-)
code = 13, sym = 0x3D (equal) scancode = 46 (=)
code = 14, sym = 0xFF08 (BackSpace) scancode = 42 (Backspace)
code = 15, sym = 0xFF09 (Tab) scancode = 43 (Tab)
code = 16, sym = 0x71 (q) scancode = 20 (Q)
code = 17, sym = 0x77 (w) scancode = 26 (W)
code = 18, sym = 0x65 (e) scancode = 8 (E)
code = 19, sym = 0x72 (r) scancode = 21 (R)
code = 20, sym = 0x74 (t) scancode = 23 (T)
code = 21, sym = 0x79 (y) scancode = 28 (Y)
code = 22, sym = 0x75 (u) scancode = 24 (U)
code = 23, sym = 0x69 (i) scancode = 12 (I)
code = 24, sym = 0x6F (o) scancode = 18 (O)
code = 25, sym = 0x70 (p) scancode = 19 (P)
code = 26, sym = 0x5B (bracketleft) scancode = 47 ([)
code = 27, sym = 0x5D (bracketright) scancode = 48 (])
code = 28, sym = 0xFF0D (Return) scancode = 40 (Return)
code = 29, sym = 0xFFE3 (Control_L) scancode = 224 (Left Ctrl)
code = 30, sym = 0x61 (a) scancode = 4 (A)
code = 31, sym = 0x73 (s) scancode = 22 (S)
code = 32, sym = 0x64 (d) scancode = 7 (D)
code = 33, sym = 0x66 (f) scancode = 9 (F)
code = 34, sym = 0x67 (g) scancode = 10 (G)
code = 35, sym = 0x68 (h) scancode = 11 (H)
code = 36, sym = 0x6A (j) scancode = 13 (J)
code = 37, sym = 0x6B (k) scancode = 14 (K)
code = 38, sym = 0x6C (l) scancode = 15 (L)
code = 39, sym = 0x3B (semicolon) scancode = 51 (;)
code = 40, sym = 0x27 (apostrophe) scancode = 52 (')
code = 41, sym = 0x60 (grave) scancode = 53 (`)
code = 42, sym = 0xFFE1 (Shift_L) scancode = 225 (Left Shift)
code = 43, sym = 0x5C (backslash) scancode = 49 (\)
code = 44, sym = 0x7A (z) scancode = 29 (Z)
code = 45, sym = 0x78 (x) scancode = 27 (X)
code = 46, sym = 0x63 (c) scancode = 6 (C)
code = 47, sym = 0x76 (v) scancode = 25 (V)
code = 48, sym = 0x62 (b) scancode = 5 (B)
code = 49, sym = 0x6E (n) scancode = 17 (N)
code = 50, sym = 0x6D (m) scancode = 16 (M)
code = 51, sym = 0x2C (comma) scancode = 54 (,)
code = 52, sym = 0x2E (period) scancode = 55 (.)
code = 53, sym = 0x2F (slash) scancode = 56 (/)
code = 54, sym = 0xFFE2 (Shift_R) scancode = 229 (Right Shift)
code = 55, sym = 0xFFAA (KP_Multiply) scancode = 85 (Keypad *)
code = 56, sym = 0xFFE9 (Alt_L) scancode = 226 (Left Alt)
code = 57, sym = 0x20 (space) scancode = 44 (Space)
code = 58, sym = 0xFFE5 (Caps_Lock) scancode = 57 (CapsLock)
code = 59, sym = 0xFFBE (F1) scancode = 58 (F1)
code = 60, sym = 0xFFBF (F2) scancode = 59 (F2)
code = 61, sym = 0xFFC0 (F3) scancode = 60 (F3)
code = 62, sym = 0xFFC1 (F4) scancode = 61 (F4)
code = 63, sym = 0xFFC2 (F5) scancode = 62 (F5)
code = 64, sym = 0xFFC3 (F6) scancode = 63 (F6)
code = 65, sym = 0xFFC4 (F7) scancode = 64 (F7)
code = 66, sym = 0xFFC5 (F8) scancode = 65 (F8)
code = 67, sym = 0xFFC6 (F9) scancode = 66 (F9)
code = 68, sym = 0xFFC7 (F10) scancode = 67 (F10)
code = 69, sym = 0xFF7F (Num_Lock) scancode = 83 (Numlock)
code = 70, sym = 0xFF14 (Scroll_Lock) scancode = 71 (ScrollLock)
code = 71, sym = 0xFF95 (KP_Home) scancode = 95 (Keypad 7)
code = 72, sym = 0xFF97 (KP_Up) scancode = 96 (Keypad 8)
code = 73, sym = 0xFF9A (KP_Prior) scancode = 97 (Keypad 9)
code = 74, sym = 0xFFAD (KP_Subtract) scancode = 86 (Keypad -)
code = 75, sym = 0xFF96 (KP_Left) scancode = 92 (Keypad 4)
code = 76, sym = 0xFF9D (KP_Begin) scancode = 93 (Keypad 5)
code = 77, sym = 0xFF98 (KP_Right) scancode = 94 (Keypad 6)
code = 78, sym = 0xFFAB (KP_Add) scancode = 87 (Keypad +)
code = 79, sym = 0xFF9C (KP_End) scancode = 89 (Keypad 1)
code = 80, sym = 0xFF99 (KP_Down) scancode = 90 (Keypad 2)
code = 81, sym = 0xFF9B (KP_Next) scancode = 91 (Keypad 3)
code = 82, sym = 0xFF9E (KP_Insert) scancode = 98 (Keypad 0)
code = 83, sym = 0xFF9F (KP_Delete) scancode = 99 (Keypad .)
code = 84, sym = 0xFE03 (ISO_Level3_Shift) scancode = 0 ()
code = 86, sym = 0x3C (less) scancode not found
code = 87, sym = 0xFFC8 (F11) scancode = 68 (F11)
code = 88, sym = 0xFFC9 (F12) scancode = 69 (F12)
code = 90, sym = 0xFF26 (Katakana) scancode = 0 ()
code = 91, sym = 0xFF25 (Hiragana) scancode = 0 ()
code = 92, sym = 0xFF23 (Henkan_Mode) scancode = 0 ()
code = 93, sym = 0xFF27 (Hiragana_Katakana) scancode = 0 ()
code = 94, sym = 0xFF22 (Muhenkan) scancode = 0 ()
code = 96, sym = 0xFF8D (KP_Enter) scancode = 88 (Keypad Enter)
code = 97, sym = 0xFFE4 (Control_R) scancode = 228 (Right Ctrl)
code = 98, sym = 0xFFAF (KP_Divide) scancode = 84 (Keypad /)
code = 99, sym = 0xFF61 (Print) scancode = 70 (PrintScreen)
code = 100, sym = 0xFFEA (Alt_R) scancode = 230 (Right Alt)
code = 101, sym = 0xFF0A (Linefeed) scancode = 0 ()
code = 102, sym = 0xFF50 (Home) scancode = 74 (Home)
code = 103, sym = 0xFF52 (Up) scancode = 82 (Up)
code = 104, sym = 0xFF55 (Prior) scancode = 75 (PageUp)
code = 105, sym = 0xFF51 (Left) scancode = 80 (Left)
code = 106, sym = 0xFF53 (Right) scancode = 79 (Right)
code = 107, sym = 0xFF57 (End) scancode = 77 (End)
code = 108, sym = 0xFF54 (Down) scancode = 81 (Down)
code = 109, sym = 0xFF56 (Next) scancode = 78 (PageDown)
code = 110, sym = 0xFF63 (Insert) scancode = 73 (Insert)
code = 111, sym = 0xFFFF (Delete) scancode = 76 (Delete)
code = 113, sym = 0x1008FF12 (XF86AudioMute) scancode = 0 ()
code = 114, sym = 0x1008FF11 (XF86AudioLowerVolume) scancode = 0 ()
code = 115, sym = 0x1008FF13 (XF86AudioRaiseVolume) scancode = 0 ()
code = 116, sym = 0x1008FF2A (XF86PowerOff) scancode = 0 ()
code = 117, sym = 0xFFBD (KP_Equal) scancode = 103 (Keypad =)
code = 118, sym = 0xB1 (plusminus) scancode not found
code = 119, sym = 0xFF13 (Pause) scancode = 72 (Pause)
code = 120, sym = 0x1008FF4A (XF86LaunchA) scancode = 0 ()
code = 121, sym = 0xFFAE (KP_Decimal) scancode = 99 (Keypad .)
code = 122, sym = 0xFF31 (Hangul) scancode = 0 ()
code = 123, sym = 0xFF34 (Hangul_Hanja) scancode = 0 ()
code = 125, sym = 0xFFEB (Super_L) scancode = 227 (Left GUI)
code = 126, sym = 0xFFEC (Super_R) scancode = 231 (Right GUI)
code = 127, sym = 0xFF67 (Menu) scancode = 118 (Menu)
code = 128, sym = 0xFF69 (Cancel) scancode = 120 (Stop)
code = 129, sym = 0xFF66 (Redo) scancode = 121 (Again)
code = 130, sym = 0x1005FF70 (SunProps) scancode = 0 ()
code = 131, sym = 0xFF65 (Undo) scancode = 122 (Undo)
code = 132, sym = 0x1005FF71 (SunFront) scancode = 0 ()
code = 133, sym = 0x1008FF57 (XF86Copy) scancode = 0 ()
code = 134, sym = 0x1005FF73 (SunOpen) scancode = 0 ()
code = 135, sym = 0x1008FF6D (XF86Paste) scancode = 0 ()
code = 136, sym = 0xFF68 (Find) scancode = 126 (Find)
code = 137, sym = 0x1008FF58 (XF86Cut) scancode = 0 ()
code = 138, sym = 0xFF6A (Help) scancode = 117 (Help)
code = 139, sym = 0x1008FF65 (XF86MenuKB) scancode = 0 ()
code = 140, sym = 0x1008FF1D (XF86Calculator) scancode = 0 ()
code = 142, sym = 0x1008FF2F (XF86Sleep) scancode = 0 ()
code = 143, sym = 0x1008FF2B (XF86WakeUp) scancode = 0 ()
code = 144, sym = 0x1008FF5D (XF86Explorer) scancode = 0 ()
code = 145, sym = 0x1008FF7B (XF86Send) scancode = 0 ()
code = 147, sym = 0x1008FF8A (XF86Xfer) scancode = 0 ()
code = 148, sym = 0x1008FF41 (XF86Launch1) scancode = 0 ()
code = 149, sym = 0x1008FF42 (XF86Launch2) scancode = 0 ()
code = 150, sym = 0x1008FF2E (XF86WWW) scancode = 0 ()
code = 151, sym = 0x1008FF5A (XF86DOS) scancode = 0 ()
code = 152, sym = 0x1008FF2D (XF86ScreenSaver) scancode = 0 ()
code = 154, sym = 0x1008FF74 (XF86RotateWindows) scancode = 0 ()
code = 155, sym = 0x1008FF19 (XF86Mail) scancode = 0 ()
code = 156, sym = 0x1008FF30 (XF86Favorites) scancode = 0 ()
code = 157, sym = 0x1008FF33 (XF86MyComputer) scancode = 0 ()
code = 158, sym = 0x1008FF26 (XF86Back) scancode = 0 ()
code = 159, sym = 0x1008FF27 (XF86Forward) scancode = 0 ()
code = 161, sym = 0x1008FF2C (XF86Eject) scancode = 0 ()
code = 162, sym = 0x1008FF2C (XF86Eject) scancode = 0 ()
code = 163, sym = 0x1008FF17 (XF86AudioNext) scancode = 0 ()
code = 164, sym = 0x1008FF14 (XF86AudioPlay) scancode = 0 ()
code = 165, sym = 0x1008FF16 (XF86AudioPrev) scancode = 0 ()
code = 166, sym = 0x1008FF15 (XF86AudioStop) scancode = 0 ()
code = 167, sym = 0x1008FF1C (XF86AudioRecord) scancode = 0 ()
code = 168, sym = 0x1008FF3E (XF86AudioRewind) scancode = 0 ()
code = 169, sym = 0x1008FF6E (XF86Phone) scancode = 0 ()
code = 171, sym = 0x1008FF81 (XF86Tools) scancode = 0 ()
code = 172, sym = 0x1008FF18 (XF86HomePage) scancode = 0 ()
code = 173, sym = 0x1008FF73 (XF86Reload) scancode = 0 ()
code = 174, sym = 0x1008FF56 (XF86Close) scancode = 0 ()
code = 177, sym = 0x1008FF78 (XF86ScrollUp) scancode = 0 ()
code = 178, sym = 0x1008FF79 (XF86ScrollDown) scancode = 0 ()
code = 179, sym = 0x28 (parenleft) scancode not found
code = 180, sym = 0x29 (parenright) scancode not found
code = 181, sym = 0x1008FF68 (XF86New) scancode = 0 ()
code = 182, sym = 0xFF66 (Redo) scancode = 121 (Again)
code = 183, sym = 0x1008FF81 (XF86Tools) scancode = 0 ()
code = 184, sym = 0x1008FF45 (XF86Launch5) scancode = 0 ()
code = 185, sym = 0x1008FF65 (XF86MenuKB) scancode = 0 ()
code = 192, sym = 0x1008FFA9 (XF86TouchpadToggle) scancode = 0 ()
code = 195, sym = 0xFF7E (Mode_switch) scancode = 257 (ModeSwitch)
code = 200, sym = 0x1008FF14 (XF86AudioPlay) scancode = 0 ()
code = 201, sym = 0x1008FF31 (XF86AudioPause) scancode = 0 ()
code = 202, sym = 0x1008FF43 (XF86Launch3) scancode = 0 ()
code = 203, sym = 0x1008FF44 (XF86Launch4) scancode = 0 ()
code = 204, sym = 0x1008FF4B (XF86LaunchB) scancode = 0 ()
code = 205, sym = 0x1008FFA7 (XF86Suspend) scancode = 0 ()
code = 206, sym = 0x1008FF56 (XF86Close) scancode = 0 ()
code = 207, sym = 0x1008FF14 (XF86AudioPlay) scancode = 0 ()
code = 208, sym = 0x1008FF97 (XF86AudioForward) scancode = 0 ()
code = 210, sym = 0xFF61 (Print) scancode = 70 (PrintScreen)
code = 212, sym = 0x1008FF8F (XF86WebCam) scancode = 0 ()
code = 215, sym = 0x1008FF19 (XF86Mail) scancode = 0 ()
code = 217, sym = 0x1008FF1B (XF86Search) scancode = 0 ()
code = 219, sym = 0x1008FF3C (XF86Finance) scancode = 0 ()
code = 221, sym = 0x1008FF36 (XF86Shop) scancode = 0 ()
code = 223, sym = 0xFF69 (Cancel) scancode = 120 (Stop)
code = 224, sym = 0x1008FF03 (XF86MonBrightnessDown) scancode = 0 ()
code = 225, sym = 0x1008FF02 (XF86MonBrightnessUp) scancode = 0 ()
code = 226, sym = 0x1008FF32 (XF86AudioMedia) scancode = 0 ()
code = 227, sym = 0x1008FF59 (XF86Display) scancode = 0 ()
code = 228, sym = 0x1008FF04 (XF86KbdLightOnOff) scancode = 0 ()
code = 229, sym = 0x1008FF06 (XF86KbdBrightnessDown) scancode = 0 ()
code = 230, sym = 0x1008FF05 (XF86KbdBrightnessUp) scancode = 0 ()
code = 231, sym = 0x1008FF7B (XF86Send) scancode = 0 ()
code = 232, sym = 0x1008FF72 (XF86Reply) scancode = 0 ()
code = 233, sym = 0x1008FF90 (XF86MailForward) scancode = 0 ()
code = 234, sym = 0x1008FF77 (XF86Save) scancode = 0 ()
code = 235, sym = 0x1008FF5B (XF86Documents) scancode = 0 ()
code = 236, sym = 0x1008FF93 (XF86Battery) scancode = 0 ()
code = 237, sym = 0x1008FF94 (XF86Bluetooth) scancode = 0 ()
code = 238, sym = 0x1008FF95 (XF86WLAN) scancode = 0 ()

Don't send events for unprintable characters

Fixed the X11 icon on 64-bit systems

Don't crash if someone tries to delete a context after we've unloaded the library.  In this case it's SDL_compat that doesn't know SDL_VideoQuit() has been called.  Hmm...

In function GLES_RenderCopy() in SDL_renderer_gles.c:819 there is one memcpy()
that can be avoided if we're updating whole texture.
Because of that the SDL 1.3 in compatibility mode is working even slower than
software rendering in SDL 1.2.

Unfortunately, this doesn't work.  I also noticed that maximizing doesn't work as well.  Also xprop hangs when trying to list properties of SDL windows.... ???

Changed SDL_SendKeyboardText and SDL_SendEditingText to use SDL_utf8strlcpy.

If a non-console Windows SDL program has a non-quoted 0th argument followed
optionally by more non-quoted arguments and then by an empty quoted argument,
it will crash (attempts to dereference a NULL pointer).

In other words, something like this:
test.exe [non-quoted args] "" [...]

The fix is a one-liner in ParseCommandLine() of
src/main/win32/SDL_win32_main.c.

You can test this with any non-console SDL program on windows like this:
1) Open a console (cmd.exe)
2) Launch the program in one of the following ways:
program ""
program arg1 ""
program arg1 "" arg3

These will not cause a crash:
"program" [...]
program "arg1" ""

When a Windows program is launched from Explorer, its 0th argument seems to
always be quoted, so it won't be a problem in that case.

I've tested this on Windows XP SP3 and Windows 7.

We call SDL_GetKeyboardFocus internally now.

IME input should now work fairly well.

As far as I know there isn't any real way to tell when the clipboard contents have changed without polling them, so I didn't implement the clipboard update event on X11.