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Added remote desktop WebP support.

This commit is contained in:
Ylian Saint-Hilaire 2021-08-10 21:50:11 -07:00
parent 9d03981bfc
commit dea1df33b6
5 changed files with 53 additions and 13 deletions

View file

@ -41,6 +41,7 @@ var CreateAgentRemoteDesktop = function (canvasid, scrolldiv) {
obj.sessionid = 0;
obj.username;
obj.oldie = false;
obj.ImageType = 1; // 1 = JPEG, 2 = PNG, 3 = TIFF, 4 = WebP
obj.CompressionLevel = 50;
obj.ScalingLevel = 1024;
obj.FrameRateTimer = 100;
@ -174,11 +175,11 @@ var CreateAgentRemoteDesktop = function (canvasid, scrolldiv) {
obj.send(String.fromCharCode(0x00, 0x08, 0x00, 0x05, 0x01));
}
obj.SendCompressionLevel = function (type, level, scaling, frametimer) {
obj.SendCompressionLevel = function (type, level, scaling, frametimer) { // Type: 1 = JPEG, 2 = PNG, 3 = TIFF, 4 = WebP
obj.ImageType = type;
if (level) { obj.CompressionLevel = level; }
if (scaling) { obj.ScalingLevel = scaling; }
if (frametimer) { obj.FrameRateTimer = frametimer; }
//console.log('SendCompressionLevel', obj.CompressionLevel, obj.ScalingLevel, obj.FrameRateTimer);
obj.send(String.fromCharCode(0x00, 0x05, 0x00, 0x0A, type, obj.CompressionLevel) + obj.shortToStr(obj.ScalingLevel) + obj.shortToStr(obj.FrameRateTimer));
}
@ -196,7 +197,7 @@ var CreateAgentRemoteDesktop = function (canvasid, scrolldiv) {
obj.ScreenHeight = obj.height = height;
obj.KillDraw = obj.tilesReceived;
while (obj.PendingOperations.length > 0) { obj.PendingOperations.shift(); }
obj.SendCompressionLevel(1);
obj.SendCompressionLevel(obj.ImageType);
obj.SendUnPause();
obj.SendRemoteInputLock(2); // Query input lock state
// No need to event the display size change now, it will be evented on first draw.
@ -739,7 +740,7 @@ var CreateAgentRemoteDesktop = function (canvasid, scrolldiv) {
if (obj.xxKeyInputGrab == true) return;
document.onkeyup = obj.xxKeyUp;
document.onkeydown = obj.xxKeyDown;
document.onkeypress = obj.xxKeyPress;
document.onkeypress = obj.xxKeyPress;c
obj.xxKeyInputGrab = true;
}

View file

@ -127,4 +127,26 @@ function parseUriArgs() {
if (!isSafeString(r[name])) { delete r[name]; } else { var x = parseInt(r[name]); if (x == r[name]) { r[name] = x; } }
}
return r;
}
// check_webp_feature:
// 'feature' can be one of 'lossy', 'lossless', 'alpha' or 'animation'.
// 'callback(feature, isSupported)' will be passed back the detection result (in an asynchronous way!)
// From: https://stackoverflow.com/questions/5573096/detecting-webp-support
function check_webp_feature(feature, callback) {
var kTestImages = {
lossy: "UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA"//,
//lossless: "UklGRhoAAABXRUJQVlA4TA0AAAAvAAAAEAcQERGIiP4HAA==",
//alpha: "UklGRkoAAABXRUJQVlA4WAoAAAAQAAAAAAAAAAAAQUxQSAwAAAARBxAR/Q9ERP8DAABWUDggGAAAABQBAJ0BKgEAAQAAAP4AAA3AAP7mtQAAAA==",
//animation: "UklGRlIAAABXRUJQVlA4WAoAAAASAAAAAAAAAAAAQU5JTQYAAAD/////AABBTk1GJgAAAAAAAAAAAAAAAAAAAGQAAABWUDhMDQAAAC8AAAAQBxAREYiI/gcA"
};
var img = new Image();
img.onload = function () {
var result = (img.width > 0) && (img.height > 0);
callback(feature, result);
};
img.onerror = function () {
callback(feature, false);
};
img.src = "data:image/webp;base64," + kTestImages[feature];
}