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cache kitty

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This commit is contained in:
Autumn Lamonte 2022-02-04 18:25:57 -06:00
parent 6412d28141
commit edc1303af1
1 changed files with 36 additions and 1 deletions
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37
src/jexer/backend/ECMA48Terminal.java
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@ -272,6 +272,11 @@ public class ECMA48Terminal extends LogicalScreen
*/
private boolean kittyImages = false;
/**
* The Kitty post-rendered string cache.
*/
private ImageCache kittyCache = null;
/**
* The number of threads for image rendering.
*/
@ -1873,6 +1878,10 @@ public class ECMA48Terminal extends LogicalScreen
if (jexerCache == null) {
jexerCache = new ImageCache(height * width * 10);
}
} else if (kittyImages) {
if (kittyCache == null) {
kittyCache = new ImageCache(height * width * 10);
}
} else {
if (sixelCache == null) {
sixelCache = new ImageCache(height * width * 10);
@ -4240,7 +4249,28 @@ public class ECMA48Terminal extends LogicalScreen
assert (cells.size() > 0);
assert (cells.get(0).getImage() != null);
// We don't cache Kitty images at this time.
// Save and get rows to/from the cache that do NOT have inverted
// cells.
boolean saveInCache = true;
for (Cell cell: cells) {
if (cell.isInvertedImage()) {
saveInCache = false;
break;
}
// Compute the hashcode so that the cell image hash is available
// for looking up in the image cache.
cell.hashCode();
}
if (saveInCache) {
String cachedResult = kittyCache.get(cells);
if (cachedResult != null) {
// System.err.println("CACHE HIT");
sb.append(gotoXY(x, y));
sb.append(cachedResult);
return sb.toString();
}
// System.err.println("CACHE MISS");
}
BufferedImage image = cellsToImage(cells);
int fullHeight = image.getHeight();
@ -4289,6 +4319,11 @@ public class ECMA48Terminal extends LogicalScreen
}
}
if (saveInCache) {
// This row is OK to save into the cache.
kittyCache.put(cells, sb.toString());
}
return (gotoXY(x, y) + sb.toString());
}