Fail the connection on unexpected tightPNG cmode.
This related to https://github.com/kanaka/noVNC/issues/145 The real fix is to QEMU so that this doesn't happen which was submitted as a patch to the mailinglist right before this.
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@ -1464,10 +1464,10 @@ function display_tight(isTightPNG) {
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else if (ctl === 0x0A) cmode = "png";
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else if (ctl === 0x0A) cmode = "png";
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else if (ctl & 0x04) cmode = "filter";
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else if (ctl & 0x04) cmode = "filter";
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else if (ctl < 0x04) cmode = "copy";
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else if (ctl < 0x04) cmode = "copy";
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else throw("Illegal tight compression received, ctl: " + ctl);
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else return fail("Illegal tight compression received, ctl: " + ctl);
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if (isTightPNG && (cmode === "filter" || cmode === "copy")) {
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if (isTightPNG && (cmode === "filter" || cmode === "copy")) {
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throw("filter/copy received in tightPNG mode");
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return fail("filter/copy received in tightPNG mode");
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}
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}
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switch (cmode) {
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switch (cmode) {
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