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Merge pull request #51 from plewka/patch-1

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Support ESP+u8g2 with optional bitswap
This commit is contained in:
Jasper van Loenen
2023-03-14 08:09:24 +01:00
committed by GitHub
parent f16fa3c5ae a30a5c4c6b
commit 12c6bae46f
1 changed files with 21 additions and 5 deletions
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index.html
+21 -5
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@@ -342,6 +342,13 @@
<label for="flipVertically">vertically</label>
</div>
</div>
<div class="table-row">
<div class="table-cell"><label for="bitswap">Swap Bits in Byte</label></div>
<div class="table-cell">
<input id="bitswap" type="checkbox" onchange="updateBoolean('bitswap')">
</div>
</div>
</div>
<div class="note">
<i>Note: centering the image only works when using a canvas larger than the original image.</i>
@@ -477,7 +484,7 @@
// When we have the complete 8 bits, combine them into a hex value
if(byteIndex < 0){
var byteSet = number.toString(16);
var byteSet = bitswap(number).toString(16);
if(byteSet.length == 1){ byteSet = "0"+byteSet; }
var b = "0x"+byteSet;
output_string += b + ", ";
@@ -512,7 +519,7 @@
}
byteIndex--;
}
var byteSet = number.toString(16);
var byteSet = bitswap(number).toString(16);
if (byteSet.length == 1){ byteSet = "0"+byteSet; }
var b = "0x"+byteSet.toString(16);
output_string += b + ", ";
@@ -543,7 +550,7 @@
var firstByte = (rgb >> 8) & 0xff;
var secondByte = rgb & 0xff;
var byteSet = rgb.toString(16);
var byteSet = bitswap(rgb).toString(16);
while(byteSet.length < 4){ byteSet = "0" + byteSet; }
output_string += "0x" + byteSet + ", ";
@@ -573,7 +580,7 @@
var firstByte = (rgb >> 8) & 0xff;
var secondByte = rgb & 0xff;
var byteSet = rgb.toString(16);
var byteSet = bitswap(rgb).toString(16);
while(byteSet.length < 8){ byteSet = "0" + byteSet; }
output_string += "0x" + byteSet + ", ";
@@ -611,7 +618,7 @@
// When we have the complete 8 bits, combine them into a hex value
if(byteIndex < 0){
var byteSet = number.toString(16);
var byteSet = bitswap(number).toString(16);
if(byteSet.length == 1){ byteSet = "0"+byteSet; }
var b = "0x"+byteSet;
output_string += b + ", ";
@@ -1389,6 +1396,15 @@
return "unsigned char";
}
}
function bitswap(b) {
if(settings["bitswap"])
{
b = (b & 0xF0) >> 4 | (b & 0x0F) << 4;
b = (b & 0xCC) >> 2 | (b & 0x33) << 2;
b = (b & 0xAA) >> 1 | (b & 0x55) << 1;
}
return b;
}
// --
document.getElementById("outputFormat").value = "arduino";