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memory savings

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This commit is contained in:
Gregor Lohaus
2026-06-02 11:11:33 +02:00
parent 81b26516fe
commit f6b7669798
1 changed files with 6 additions and 4 deletions
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10
src/main/java/com/gregor/jprototerm/GhosttyTerminalRenderer.java
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@@ -817,18 +817,20 @@ final class GhosttyTerminalRenderer extends TerminalRenderer {
int blue = rgb & 0xff;
// Clamp the glyph rectangle to the buffer once, so the inner loops carry no
// per-pixel bounds check (this is the hottest pixel loop on a text repaint).
int glyphWidth = glyph.width();
byte[] glyphAlpha = glyph.alpha();
int gyStart = Math.max(0, -y);
int gyEnd = Math.min(glyph.height, height - y);
int gyEnd = Math.min(glyph.height(), height - y);
int gxStart = Math.max(0, -x);
int gxEnd = Math.min(glyph.width, width - x);
int gxEnd = Math.min(glyphWidth, width - x);
if (gyStart >= gyEnd || gxStart >= gxEnd) {
return;
}
for (int gy = gyStart; gy < gyEnd; gy++) {
int rowOffset = (y + gy) * width;
int glyphOffset = gy * glyph.width;
int glyphOffset = gy * glyphWidth;
for (int gx = gxStart; gx < gxEnd; gx++) {
int alpha = glyph.alpha[glyphOffset + gx] & 0xff;
int alpha = glyphAlpha[glyphOffset + gx] & 0xff;
if (alpha == 0) {
continue;
}