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finalize

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This commit is contained in:
Gregor Lohaus
2026-05-29 19:40:30 +02:00
parent a534914a9b
commit 5bbba354ab
1 changed files with 16 additions and 8 deletions
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24
src/main/java/dev/jlibghostty/RenderState.java
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@@ -22,24 +22,32 @@ public final class RenderState implements AutoCloseable {
library.renderStateUpdate(handle, terminal.handleForPackage());
}
/** Snapshot with every row's cells fully populated. */
public RenderStateSnapshot snapshot() {
return buildSnapshot(false);
}
/**
* Snapshot in which cells are marshalled only for rows ghostty flagged dirty; clean
* rows get an empty cell list. Intended for a render state reused across frames (paired
* with {@link #resetDirty}) so unchanged rows skip the per-cell marshalling cost. The
* global {@link RenderStateSnapshot#dirty()} still reports FALSE / PARTIAL / FULL.
*/
public RenderStateSnapshot snapshotIncremental() {
return buildSnapshot(true);
}
private RenderStateSnapshot buildSnapshot(boolean dirtyRowsOnly) {
ensureOpen();
boolean cursorViewportHasValue = library.renderStateGetBoolean(
handle,
GhosttyLibrary.RENDER_STATE_DATA_CURSOR_VIEWPORT_HAS_VALUE
);
// When only some rows changed (PARTIAL), skip marshalling cells for clean rows;
// FULL means the whole frame must be redrawn, so every row's cells are needed. A
// throwaway render state (a single update) always reports FULL, so callers that do
// not keep the state around keep getting fully-populated rows exactly as before.
int dirty = library.renderStateGetI32(handle, GhosttyLibrary.RENDER_STATE_DATA_DIRTY);
boolean dirtyRowsOnly = dirty != GhosttyLibrary.RENDER_STATE_DIRTY_FULL;
return new RenderStateSnapshot(
library.renderStateGetU16(handle, GhosttyLibrary.RENDER_STATE_DATA_COLS),
library.renderStateGetU16(handle, GhosttyLibrary.RENDER_STATE_DATA_ROWS),
dirty,
library.renderStateGetI32(handle, GhosttyLibrary.RENDER_STATE_DATA_DIRTY),
RenderCursorStyle.fromNative(
library.renderStateGetI32(handle, GhosttyLibrary.RENDER_STATE_DATA_CURSOR_VISUAL_STYLE)
),