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Commit 28a5f293 authored by Joel Martin's avatar Joel Martin
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Re-order routines, no functional changes.

parent fb99d81c
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Showing with 113 additions and 107 deletions
vnc.js
View file @ 28a5f293
......@@ -223,7 +223,119 @@ init_msg: function () {
console.log("<< init_msg (" + RFB.state + ")");
},
/* Framebuffer update display functions */
/* Normal RFB/VNC server messages */
normal_msg: function () {
//console.log(">> normal_msg");
if ((FBU.rects > 0) || (FBU.bytes > 0)) {
var msg_type = 0;
} else {
var msg_type = RFB.d.shift8();
}
switch (msg_type) {
case 0: // FramebufferUpdate
if (FBU.rects == 0) {
if (RFB.d.length < 3) {
console.log(" waiting for FBU header bytes");
return;
}
RFB.d.shift8();
FBU.rects = RFB.d.shift16();
//console.log("FramebufferUpdate, rects:" + FBU.rects);
FBU.bytes = 0;
}
while ((FBU.rects > 0) && (RFB.d.length > 0)) {
if (FBU.bytes == 0) {
if (RFB.d.length < 12) {
console.log(" waiting for rect header bytes");
return;
}
/* New FramebufferUpdate */
FBU.x = RFB.d.shift16();
FBU.y = RFB.d.shift16();
FBU.width = RFB.d.shift16();
FBU.height = RFB.d.shift16();
FBU.encoding = parseInt(RFB.d.shift32(), 10);
//var msg = "FramebufferUpdate rects:" + FBU.rects + " encoding:" + FBU.encoding
switch (FBU.encoding) {
case 0: // Raw
FBU.bytes = FBU.width * FBU.height * RFB.fb_Bpp;
//msg += "(RAW)"
break;
case 1: // Copy-Rect
FBU.bytes = 4;
//msg += "(COPY-RECT)"
break;
case 2: // RRE
FBU.bytes = 4 + RFB.fb_Bpp;
//msg += "(RRE)"
break;
case 5: // hextile
FBU.bytes = 2; // No header; get it started
FBU.tiles_x = Math.ceil(FBU.width/16);
FBU.tiles_y = Math.ceil(FBU.height/16);
FBU.total_tiles = FBU.tiles_x * FBU.tiles_y;
FBU.tiles = FBU.total_tiles;
//msg += "(HEXTILE " + FBU.tiles + " tiles)"
break;
default:
console.log("Unsupported encoding " + FBU.encoding);
RFB.state = "failed";
return;
}
//msg += ", RFB.d.length: " + RFB.d.length + ", FBU.bytes: " + FBU.bytes
//console.log(msg);
}
if (RFB.d.length >= FBU.bytes) {
FBU.bytes = 0;
switch (FBU.encoding) {
case 0: RFB.display_raw(); break; // Raw
case 1: RFB.display_copy_rect(); break; // Copy-Rect
case 2: RFB.display_rre(); break; // RRE
case 5: RFB.display_hextile(); break; // hextile
}
} else {
/* We don't have enough yet */
FBU.bytes = FBU.bytes - RFB.d.length;
break;
}
if (RFB.state != "normal") return;
}
//console.log("Finished frame buffer update");
break;
case 1: // SetColourMapEntries
console.log("SetColourMapEntries (unsupported)");
RFB.d.shift8(); // Padding
RFB.d.shift16(); // First colour
var num_colours = RFB.d.shift16();
RFB.d.shiftBytes(num_colours * 6);
break;
case 2: // Bell
console.log("Bell (unsupported)");
break;
case 3: // ServerCutText
console.log("ServerCutText");
RFB.d.shiftBytes(3); // Padding
var length = RFB.d.shift32();
RFB.d.shiftBytes(length);
break;
default:
console.log("Unknown server message type: " + msg_type);
RFB.state = "failed";
break;
}
//console.log("<< normal_msg");
},
/*
* FramebufferUpdate encodings
*/
display_raw: function () {
console.log(">> display_raw");
Canvas.rfbImage(FBU.x, FBU.y, FBU.width, FBU.height, RFB.d);
......@@ -401,112 +513,6 @@ display_hextile: function() {
},
/* Normal RFB/VNC messages */
normal_msg: function () {
//console.log(">> normal_msg");
if ((FBU.rects > 0) || (FBU.bytes > 0)) {
var msg_type = 0;
} else {
var msg_type = RFB.d.shift8();
}
switch (msg_type) {
case 0: // FramebufferUpdate
if (FBU.rects == 0) {
if (RFB.d.length < 3) {
console.log(" waiting for FBU header bytes");
return;
}
RFB.d.shift8();
FBU.rects = RFB.d.shift16();
//console.log("FramebufferUpdate, rects:" + FBU.rects);
FBU.bytes = 0;
}
while ((FBU.rects > 0) && (RFB.d.length > 0)) {
if (FBU.bytes == 0) {
if (RFB.d.length < 12) {
console.log(" waiting for rect header bytes");
return;
}
/* New FramebufferUpdate */
FBU.x = RFB.d.shift16();
FBU.y = RFB.d.shift16();
FBU.width = RFB.d.shift16();
FBU.height = RFB.d.shift16();
FBU.encoding = parseInt(RFB.d.shift32(), 10);
//var msg = "FramebufferUpdate rects:" + FBU.rects + " encoding:" + FBU.encoding
switch (FBU.encoding) {
case 0: // Raw
FBU.bytes = FBU.width * FBU.height * RFB.fb_Bpp;
//msg += "(RAW)"
break;
case 1: // Copy-Rect
FBU.bytes = 4;
//msg += "(COPY-RECT)"
break;
case 2: // RRE
FBU.bytes = 4 + RFB.fb_Bpp;
//msg += "(RRE)"
break;
case 5: // hextile
FBU.bytes = 2; // No header; get it started
FBU.tiles_x = Math.ceil(FBU.width/16);
FBU.tiles_y = Math.ceil(FBU.height/16);
FBU.total_tiles = FBU.tiles_x * FBU.tiles_y;
FBU.tiles = FBU.total_tiles;
//msg += "(HEXTILE " + FBU.tiles + " tiles)"
break;
default:
console.log("Unsupported encoding " + FBU.encoding);
RFB.state = "failed";
return;
}
//msg += ", RFB.d.length: " + RFB.d.length + ", FBU.bytes: " + FBU.bytes
//console.log(msg);
}
if (RFB.d.length >= FBU.bytes) {
FBU.bytes = 0;
switch (FBU.encoding) {
case 0: RFB.display_raw(); break; // Raw
case 1: RFB.display_copy_rect(); break; // Copy-Rect
case 2: RFB.display_rre(); break; // RRE
case 5: RFB.display_hextile(); break; // hextile
}
} else {
/* We don't have enough yet */
FBU.bytes = FBU.bytes - RFB.d.length;
break;
}
if (RFB.state != "normal") return;
}
//console.log("Finished frame buffer update");
break;
case 1: // SetColourMapEntries
console.log("SetColourMapEntries (unsupported)");
RFB.d.shift8(); // Padding
RFB.d.shift16(); // First colour
var num_colours = RFB.d.shift16();
RFB.d.shiftBytes(num_colours * 6);
break;
case 2: // Bell
console.log("Bell (unsupported)");
break;
case 3: // ServerCutText
console.log("ServerCutText");
RFB.d.shiftBytes(3); // Padding
var length = RFB.d.shift32();
RFB.d.shiftBytes(length);
break;
default:
console.log("Unknown server message type: " + msg_type);
RFB.state = "failed";
break;
}
//console.log("<< normal_msg");
},
/*
* Client message routines
......
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