328 lines
11 KiB
JavaScript
328 lines
11 KiB
JavaScript
"use strict";
|
|
/*
|
|
Copyright (C) 2012 by Jeremy P. White <jwhite@codeweavers.com>
|
|
|
|
This file is part of spice-html5.
|
|
|
|
spice-html5 is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
spice-html5 is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with spice-html5. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/*----------------------------------------------------------------------------
|
|
** Utility settings and functions for Spice
|
|
**--------------------------------------------------------------------------*/
|
|
var DEBUG = 0;
|
|
var PLAYBACK_DEBUG = 0;
|
|
var STREAM_DEBUG = 0;
|
|
var DUMP_DRAWS = false;
|
|
var DUMP_CANVASES = false;
|
|
|
|
|
|
/*----------------------------------------------------------------------------
|
|
** combine_array_buffers
|
|
** Combine two array buffers.
|
|
** FIXME - this can't be optimal. See wire.js about eliminating the need.
|
|
**--------------------------------------------------------------------------*/
|
|
function combine_array_buffers(a1, a2)
|
|
{
|
|
var in1 = new Uint8Array(a1);
|
|
var in2 = new Uint8Array(a2);
|
|
var ret = new ArrayBuffer(a1.byteLength + a2.byteLength);
|
|
var out = new Uint8Array(ret);
|
|
var o = 0;
|
|
var i;
|
|
for (i = 0; i < in1.length; i++)
|
|
out[o++] = in1[i];
|
|
for (i = 0; i < in2.length; i++)
|
|
out[o++] = in2[i];
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------------
|
|
** hexdump_buffer
|
|
**--------------------------------------------------------------------------*/
|
|
function hexdump_buffer(a)
|
|
{
|
|
var mg = new Uint8Array(a);
|
|
var hex = "";
|
|
var str = "";
|
|
var last_zeros = 0;
|
|
for (var i = 0; i < mg.length; i++)
|
|
{
|
|
var h = Number(mg[i]).toString(16);
|
|
if (h.length == 1)
|
|
hex += "0";
|
|
hex += h + " ";
|
|
|
|
if (mg[i] == 10 || mg[i] == 13 || mg[i] == 8)
|
|
str += ".";
|
|
else
|
|
str += String.fromCharCode(mg[i]);
|
|
|
|
if ((i % 16 == 15) || (i == (mg.length - 1)))
|
|
{
|
|
while (i % 16 != 15)
|
|
{
|
|
hex += " ";
|
|
i++;
|
|
}
|
|
|
|
if (last_zeros == 0)
|
|
console.log(hex + " | " + str);
|
|
|
|
if (hex == "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ")
|
|
{
|
|
if (last_zeros == 1)
|
|
{
|
|
console.log(".");
|
|
last_zeros++;
|
|
}
|
|
else if (last_zeros == 0)
|
|
last_zeros++;
|
|
}
|
|
else
|
|
last_zeros = 0;
|
|
|
|
hex = str = "";
|
|
}
|
|
}
|
|
}
|
|
|
|
/*----------------------------------------------------------------------------
|
|
** Convert arraybuffer to string
|
|
**--------------------------------------------------------------------------*/
|
|
function arraybuffer_to_str(buf) {
|
|
return String.fromCharCode.apply(null, new Uint16Array(buf));
|
|
}
|
|
|
|
/*----------------------------------------------------------------------------
|
|
** Converting keycodes to AT scancodes is very hard.
|
|
** luckly there are some resources on the web and in the Xorg driver that help
|
|
** us figure out what browser dependent keycodes match to what scancodes.
|
|
**
|
|
** This will most likely not work for non US keyboard and browsers other than
|
|
** modern Chrome and FireFox.
|
|
**--------------------------------------------------------------------------*/
|
|
var common_scanmap = [];
|
|
common_scanmap['Q'.charCodeAt(0)] = KEY_Q;
|
|
common_scanmap['W'.charCodeAt(0)] = KEY_W;
|
|
common_scanmap['E'.charCodeAt(0)] = KEY_E;
|
|
common_scanmap['R'.charCodeAt(0)] = KEY_R;
|
|
common_scanmap['T'.charCodeAt(0)] = KEY_T;
|
|
common_scanmap['Y'.charCodeAt(0)] = KEY_Y;
|
|
common_scanmap['U'.charCodeAt(0)] = KEY_U;
|
|
common_scanmap['I'.charCodeAt(0)] = KEY_I;
|
|
common_scanmap['O'.charCodeAt(0)] = KEY_O;
|
|
common_scanmap['P'.charCodeAt(0)] = KEY_P;
|
|
common_scanmap['A'.charCodeAt(0)] = KEY_A;
|
|
common_scanmap['S'.charCodeAt(0)] = KEY_S;
|
|
common_scanmap['D'.charCodeAt(0)] = KEY_D;
|
|
common_scanmap['F'.charCodeAt(0)] = KEY_F;
|
|
common_scanmap['G'.charCodeAt(0)] = KEY_G;
|
|
common_scanmap['H'.charCodeAt(0)] = KEY_H;
|
|
common_scanmap['J'.charCodeAt(0)] = KEY_J;
|
|
common_scanmap['K'.charCodeAt(0)] = KEY_K;
|
|
common_scanmap['L'.charCodeAt(0)] = KEY_L;
|
|
common_scanmap['Z'.charCodeAt(0)] = KEY_Z;
|
|
common_scanmap['X'.charCodeAt(0)] = KEY_X;
|
|
common_scanmap['C'.charCodeAt(0)] = KEY_C;
|
|
common_scanmap['V'.charCodeAt(0)] = KEY_V;
|
|
common_scanmap['B'.charCodeAt(0)] = KEY_B;
|
|
common_scanmap['N'.charCodeAt(0)] = KEY_N;
|
|
common_scanmap['M'.charCodeAt(0)] = KEY_M;
|
|
common_scanmap[' '.charCodeAt(0)] = KEY_Space;
|
|
common_scanmap[13] = KEY_Enter;
|
|
common_scanmap[27] = KEY_Escape;
|
|
common_scanmap[8] = KEY_BackSpace;
|
|
common_scanmap[9] = KEY_Tab;
|
|
common_scanmap[16] = KEY_ShiftL;
|
|
common_scanmap[17] = KEY_LCtrl;
|
|
common_scanmap[18] = KEY_Alt;
|
|
common_scanmap[20] = KEY_CapsLock;
|
|
common_scanmap[144] = KEY_NumLock;
|
|
common_scanmap[112] = KEY_F1;
|
|
common_scanmap[113] = KEY_F2;
|
|
common_scanmap[114] = KEY_F3;
|
|
common_scanmap[115] = KEY_F4;
|
|
common_scanmap[116] = KEY_F5;
|
|
common_scanmap[117] = KEY_F6;
|
|
common_scanmap[118] = KEY_F7;
|
|
common_scanmap[119] = KEY_F8;
|
|
common_scanmap[120] = KEY_F9;
|
|
common_scanmap[121] = KEY_F10;
|
|
common_scanmap[122] = KEY_F11;
|
|
common_scanmap[123] = KEY_F12;
|
|
|
|
/* These extended scancodes do not line up with values from atKeynames */
|
|
common_scanmap[42] = 99;
|
|
common_scanmap[19] = 101; // Break
|
|
common_scanmap[111] = 0xE035; // KP_Divide
|
|
common_scanmap[106] = 0xE037; // KP_Multiply
|
|
common_scanmap[36] = 0xE047; // Home
|
|
common_scanmap[38] = 0xE048; // Up
|
|
common_scanmap[33] = 0xE049; // PgUp
|
|
common_scanmap[37] = 0xE04B; // Left
|
|
common_scanmap[39] = 0xE04D; // Right
|
|
common_scanmap[35] = 0xE04F; // End
|
|
common_scanmap[40] = 0xE050; // Down
|
|
common_scanmap[34] = 0xE051; // PgDown
|
|
common_scanmap[45] = 0xE052; // Insert
|
|
common_scanmap[46] = 0xE053; // Delete
|
|
common_scanmap[44] = 0x2A37; // Print
|
|
|
|
/* These are not common between ALL browsers but are between Firefox and DOM3 */
|
|
common_scanmap['1'.charCodeAt(0)] = KEY_1;
|
|
common_scanmap['2'.charCodeAt(0)] = KEY_2;
|
|
common_scanmap['3'.charCodeAt(0)] = KEY_3;
|
|
common_scanmap['4'.charCodeAt(0)] = KEY_4;
|
|
common_scanmap['5'.charCodeAt(0)] = KEY_5;
|
|
common_scanmap['6'.charCodeAt(0)] = KEY_6;
|
|
common_scanmap['7'.charCodeAt(0)] = KEY_7;
|
|
common_scanmap['8'.charCodeAt(0)] = KEY_8;
|
|
common_scanmap['9'.charCodeAt(0)] = KEY_9;
|
|
common_scanmap['0'.charCodeAt(0)] = KEY_0;
|
|
common_scanmap[145] = KEY_ScrollLock;
|
|
common_scanmap[103] = KEY_KP_7;
|
|
common_scanmap[104] = KEY_KP_8;
|
|
common_scanmap[105] = KEY_KP_9;
|
|
common_scanmap[100] = KEY_KP_4;
|
|
common_scanmap[101] = KEY_KP_5;
|
|
common_scanmap[102] = KEY_KP_6;
|
|
common_scanmap[107] = KEY_KP_Plus;
|
|
common_scanmap[97] = KEY_KP_1;
|
|
common_scanmap[98] = KEY_KP_2;
|
|
common_scanmap[99] = KEY_KP_3;
|
|
common_scanmap[96] = KEY_KP_0;
|
|
common_scanmap[110] = KEY_KP_Decimal;
|
|
common_scanmap[191] = KEY_Slash;
|
|
common_scanmap[190] = KEY_Period;
|
|
common_scanmap[188] = KEY_Comma;
|
|
common_scanmap[220] = KEY_BSlash;
|
|
common_scanmap[192] = KEY_Tilde;
|
|
common_scanmap[222] = KEY_Quote;
|
|
common_scanmap[219] = KEY_LBrace;
|
|
common_scanmap[221] = KEY_RBrace;
|
|
|
|
common_scanmap[91] = 0xE05B; //KEY_LMeta
|
|
common_scanmap[92] = 0xE05C; //KEY_RMeta
|
|
common_scanmap[93] = 0xE05D; //KEY_Menu
|
|
|
|
/* Firefox/Mozilla codes */
|
|
var firefox_scanmap = [];
|
|
firefox_scanmap[173] = KEY_Minus;
|
|
firefox_scanmap[109] = KEY_Minus;
|
|
firefox_scanmap[61] = KEY_Equal;
|
|
firefox_scanmap[59] = KEY_SemiColon;
|
|
|
|
/* DOM3 codes */
|
|
var DOM_scanmap = [];
|
|
DOM_scanmap[189] = KEY_Minus;
|
|
DOM_scanmap[187] = KEY_Equal;
|
|
DOM_scanmap[186] = KEY_SemiColon;
|
|
|
|
function get_scancode(code)
|
|
{
|
|
if (common_scanmap[code] === undefined)
|
|
{
|
|
if (navigator.userAgent.indexOf("Firefox") != -1)
|
|
return firefox_scanmap[code];
|
|
else
|
|
return DOM_scanmap[code];
|
|
}
|
|
else
|
|
return common_scanmap[code];
|
|
}
|
|
|
|
function keycode_to_start_scan(code)
|
|
{
|
|
var scancode = get_scancode(code);
|
|
if (scancode === undefined)
|
|
{
|
|
alert('no map for ' + code);
|
|
return 0;
|
|
}
|
|
|
|
if (scancode < 0x100) {
|
|
return scancode;
|
|
} else {
|
|
return 0xe0 | ((scancode - 0x100) << 8);
|
|
}
|
|
}
|
|
|
|
function keycode_to_end_scan(code)
|
|
{
|
|
var scancode = get_scancode(code);
|
|
if (scancode === undefined)
|
|
return 0;
|
|
|
|
if (scancode < 0x100) {
|
|
return scancode | 0x80;
|
|
} else {
|
|
return 0x80e0 | ((scancode - 0x100) << 8);
|
|
}
|
|
}
|
|
|
|
function dump_media_element(m)
|
|
{
|
|
var ret =
|
|
"[networkState " + m.networkState +
|
|
"|readyState " + m.readyState +
|
|
"|error " + m.error +
|
|
"|seeking " + m.seeking +
|
|
"|duration " + m.duration +
|
|
"|paused " + m.paused +
|
|
"|ended " + m.error +
|
|
"|buffered " + dump_timerange(m.buffered) +
|
|
"]";
|
|
return ret;
|
|
}
|
|
|
|
function dump_media_source(ms)
|
|
{
|
|
var ret =
|
|
"[duration " + ms.duration +
|
|
"|readyState " + ms.readyState + "]";
|
|
return ret;
|
|
}
|
|
|
|
function dump_source_buffer(sb)
|
|
{
|
|
var ret =
|
|
"[appendWindowStart " + sb.appendWindowStart +
|
|
"|appendWindowEnd " + sb.appendWindowEnd +
|
|
"|buffered " + dump_timerange(sb.buffered) +
|
|
"|timeStampOffset " + sb.timeStampOffset +
|
|
"|updating " + sb.updating +
|
|
"]";
|
|
return ret;
|
|
}
|
|
|
|
function dump_timerange(tr)
|
|
{
|
|
var ret;
|
|
|
|
if (tr)
|
|
{
|
|
var i = tr.length;
|
|
ret = "{len " + i;
|
|
if (i > 0)
|
|
ret += "; start " + tr.start(0) + "; end " + tr.end(i - 1);
|
|
ret += "}";
|
|
}
|
|
else
|
|
ret = "N/A";
|
|
|
|
return ret;
|
|
}
|