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PaperMC/patches/server/0360-Make-the-GUI-graph-fancier.patch
Spottedleaf 01a13871de
Rewrite chunk system (#8177) 
Patch documentation to come

Issues with the old system that are fixed now:
- World generation does not scale with cpu cores effectively.
- Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps.
- Unreliable prioritisation of chunk gen/load calls that block the main thread.
- Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved.
- Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal.
- Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles.

The above list is not complete. The patch documentation will complete it.

New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil.

Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft.

The old legacy chunk system patches have been moved to the removed folder in case we need them again.
2022-09-26 01:02:51 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sun, 2 Feb 2020 04:00:40 -0600
Subject: [PATCH] Make the GUI graph fancier
diff --git a/src/main/java/com/destroystokyo/paper/gui/GraphColor.java b/src/main/java/com/destroystokyo/paper/gui/GraphColor.java
new file mode 100644
index 0000000000000000000000000000000000000000..a4e641fdcccd3efcd1a2865dc6dc28d50671b995
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/gui/GraphColor.java
@@ -0,0 +1,44 @@
+package com.destroystokyo.paper.gui;
+
+import java.awt.Color;
+
+public class GraphColor {
+ private static final Color[] colorLine = new Color[101];
+ private static final Color[] colorFill = new Color[101];
+
+ static {
+ for (int i = 0; i < 101; i++) {
+ Color color = createColor(i);
+ colorLine[i] = new Color(color.getRed() / 2, color.getGreen() / 2, color.getBlue() / 2, 255);
+ colorFill[i] = new Color(colorLine[i].getRed(), colorLine[i].getGreen(), colorLine[i].getBlue(), 125);
+ }
+ }
+
+ public static Color getLineColor(int percent) {
+ return colorLine[percent];
+ }
+
+ public static Color getFillColor(int percent) {
+ return colorFill[percent];
+ }
+
+ private static Color createColor(int percent) {
+ if (percent <= 50) {
+ return new Color(0X00FF00);
+ }
+
+ int value = 510 - (int) (Math.min(Math.max(0, ((percent - 50) / 50F)), 1) * 510);
+
+ int red, green;
+ if (value < 255) {
+ red = 255;
+ green = (int) (Math.sqrt(value) * 16);
+ } else {
+ green = 255;
+ value = value - 255;
+ red = 255 - (value * value / 255);
+ }
+
+ return new Color(red, green, 0);
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/gui/GraphData.java b/src/main/java/com/destroystokyo/paper/gui/GraphData.java
new file mode 100644
index 0000000000000000000000000000000000000000..186fc722965e403f76b1480e1c2381fc34e29049
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/gui/GraphData.java
@@ -0,0 +1,47 @@
+package com.destroystokyo.paper.gui;
+
+import java.awt.Color;
+
+public class GraphData {
+ private long total;
+ private long free;
+ private long max;
+ private long usedMem;
+ private int usedPercent;
+
+ public GraphData(long total, long free, long max) {
+ this.total = total;
+ this.free = free;
+ this.max = max;
+ this.usedMem = total - free;
+ this.usedPercent = usedMem == 0 ? 0 : (int) (usedMem * 100L / max);
+ }
+
+ public long getTotal() {
+ return total;
+ }
+
+ public long getFree() {
+ return free;
+ }
+
+ public long getMax() {
+ return max;
+ }
+
+ public long getUsedMem() {
+ return usedMem;
+ }
+
+ public int getUsedPercent() {
+ return usedPercent;
+ }
+
+ public Color getFillColor() {
+ return GraphColor.getFillColor(usedPercent);
+ }
+
+ public Color getLineColor() {
+ return GraphColor.getLineColor(usedPercent);
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/gui/GuiStatsComponent.java b/src/main/java/com/destroystokyo/paper/gui/GuiStatsComponent.java
new file mode 100644
index 0000000000000000000000000000000000000000..537bc6213545e8ff1b7b51bc4b27fd5b2a740883
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/gui/GuiStatsComponent.java
@@ -0,0 +1,41 @@
+package com.destroystokyo.paper.gui;
+
+import net.minecraft.server.MinecraftServer;
+
+import javax.swing.JPanel;
+import javax.swing.Timer;
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+
+public class GuiStatsComponent extends JPanel {
+ private final Timer timer;
+ private final RAMGraph ramGraph;
+
+ public GuiStatsComponent(MinecraftServer server) {
+ super(new BorderLayout());
+
+ setOpaque(false);
+
+ ramGraph = new RAMGraph();
+ RAMDetails ramDetails = new RAMDetails(server);
+
+ add(ramGraph, "North");
+ add(ramDetails, "Center");
+
+ timer = new Timer(500, (event) -> {
+ ramGraph.update();
+ ramDetails.update();
+ });
+ timer.start();
+ }
+
+ @Override
+ public Dimension getPreferredSize() {
+ return new Dimension(350, 200);
+ }
+
+ public void close() {
+ timer.stop();
+ ramGraph.stop();
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/gui/RAMDetails.java b/src/main/java/com/destroystokyo/paper/gui/RAMDetails.java
new file mode 100644
index 0000000000000000000000000000000000000000..23239679d6584f1088b2b94c46eb9a5c1f9ad91d
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/gui/RAMDetails.java
@@ -0,0 +1,73 @@
+package com.destroystokyo.paper.gui;
+
+import net.minecraft.Util;
+import net.minecraft.server.MinecraftServer;
+
+import javax.swing.DefaultListCellRenderer;
+import javax.swing.DefaultListSelectionModel;
+import javax.swing.JList;
+import javax.swing.border.EmptyBorder;
+import java.awt.Dimension;
+import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
+import java.util.Locale;
+import java.util.Vector;
+
+public class RAMDetails extends JList<String> {
+ public static final DecimalFormat DECIMAL_FORMAT = Util.make(new DecimalFormat("########0.000"), (format)
+ -> format.setDecimalFormatSymbols(DecimalFormatSymbols.getInstance(Locale.ROOT)));
+
+ private final MinecraftServer server;
+
+ public RAMDetails(MinecraftServer server) {
+ this.server = server;
+
+ setBorder(new EmptyBorder(0, 10, 0, 0));
+ setFixedCellHeight(20);
+ setOpaque(false);
+
+ DefaultListCellRenderer renderer = new DefaultListCellRenderer();
+ renderer.setOpaque(false);
+ setCellRenderer(renderer);
+
+ setSelectionModel(new DefaultListSelectionModel() {
+ @Override
+ public void setAnchorSelectionIndex(final int anchorIndex) {
+ }
+
+ @Override
+ public void setLeadAnchorNotificationEnabled(final boolean flag) {
+ }
+
+ @Override
+ public void setLeadSelectionIndex(final int leadIndex) {
+ }
+
+ @Override
+ public void setSelectionInterval(final int index0, final int index1) {
+ }
+ });
+ }
+
+ @Override
+ public Dimension getPreferredSize() {
+ return new Dimension(350, 100);
+ }
+
+ public void update() {
+ GraphData data = RAMGraph.DATA.peekLast();
+ Vector<String> vector = new Vector<>();
+ vector.add("Memory use: " + (data.getUsedMem() / 1024L / 1024L) + " mb (" + (data.getFree() * 100L / data.getMax()) + "% free)");
+ vector.add("Heap: " + (data.getTotal() / 1024L / 1024L) + " / " + (data.getMax() / 1024L / 1024L) + " mb");
+ vector.add("Avg tick: " + DECIMAL_FORMAT.format(getAverage(server.tickTimes)) + " ms");
+ setListData(vector);
+ }
+
+ public double getAverage(long[] tickTimes) {
+ long total = 0L;
+ for (long value : tickTimes) {
+ total += value;
+ }
+ return ((double) total / (double) tickTimes.length) * 1.0E-6D;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/gui/RAMGraph.java b/src/main/java/com/destroystokyo/paper/gui/RAMGraph.java
new file mode 100644
index 0000000000000000000000000000000000000000..c3e54da4ab6440811aab2f9dd1e218802ac13285
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/gui/RAMGraph.java
@@ -0,0 +1,144 @@
+package com.destroystokyo.paper.gui;
+
+import javax.swing.JComponent;
+import javax.swing.SwingUtilities;
+import javax.swing.Timer;
+import javax.swing.ToolTipManager;
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.MouseInfo;
+import java.awt.Point;
+import java.awt.PointerInfo;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.concurrent.TimeUnit;
+
+public class RAMGraph extends JComponent {
+ public static final LinkedList<GraphData> DATA = new LinkedList<GraphData>() {
+ @Override
+ public boolean add(GraphData data) {
+ if (size() >= 348) {
+ remove();
+ }
+ return super.add(data);
+ }
+ };
+
+ static {
+ GraphData empty = new GraphData(0, 0, 0);
+ for (int i = 0; i < 350; i++) {
+ DATA.add(empty);
+ }
+ }
+
+ private final Timer timer;
+ private final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm:ss");
+
+ private int currentTick;
+
+ public RAMGraph() {
+ ToolTipManager.sharedInstance().setInitialDelay(0);
+
+ addMouseListener(new MouseAdapter() {
+ final int defaultDismissTimeout = ToolTipManager.sharedInstance().getDismissDelay();
+ final int dismissDelayMinutes = (int) TimeUnit.MINUTES.toMillis(10);
+
+ @Override
+ public void mouseEntered(MouseEvent me) {
+ ToolTipManager.sharedInstance().setDismissDelay(dismissDelayMinutes);
+ }
+
+ @Override
+ public void mouseExited(MouseEvent me) {
+ ToolTipManager.sharedInstance().setDismissDelay(defaultDismissTimeout);
+ }
+ });
+
+ timer = new Timer(50, (event) -> repaint());
+ timer.start();
+ }
+
+ @Override
+ public Dimension getPreferredSize() {
+ return new Dimension(350, 110);
+ }
+
+ public void update() {
+ Runtime jvm = Runtime.getRuntime();
+ DATA.add(new GraphData(jvm.totalMemory(), jvm.freeMemory(), jvm.maxMemory()));
+
+ PointerInfo pointerInfo = MouseInfo.getPointerInfo();
+ if (pointerInfo != null) {
+ Point point = pointerInfo.getLocation();
+ if (point != null) {
+ Point loc = new Point(point);
+ SwingUtilities.convertPointFromScreen(loc, this);
+ if (this.contains(loc)) {
+ ToolTipManager.sharedInstance().mouseMoved(
+ new MouseEvent(this, -1, System.currentTimeMillis(), 0, loc.x, loc.y,
+ point.x, point.y, 0, false, 0));
+ }
+ }
+ }
+
+ currentTick++;
+ }
+
+ @Override
+ public void paint(Graphics graphics) {
+ graphics.setColor(new Color(0xFFFFFFFF));
+ graphics.fillRect(0, 0, 350, 100);
+
+ graphics.setColor(new Color(0x888888));
+ graphics.drawLine(1, 25, 348, 25);
+ graphics.drawLine(1, 50, 348, 50);
+ graphics.drawLine(1, 75, 348, 75);
+
+ int i = 0;
+ for (GraphData data : DATA) {
+ i++;
+ if ((i + currentTick) % 120 == 0) {
+ graphics.setColor(new Color(0x888888));
+ graphics.drawLine(i, 1, i, 99);
+ }
+ int used = data.getUsedPercent();
+ if (used > 0) {
+ Color color = data.getLineColor();
+ graphics.setColor(data.getFillColor());
+ graphics.fillRect(i, 100 - used, 1, used);
+ graphics.setColor(color);
+ graphics.fillRect(i, 100 - used, 1, 1);
+ }
+ }
+
+ graphics.setColor(new Color(0xFF000000));
+ graphics.drawRect(0, 0, 348, 100);
+
+ Point m = getMousePosition();
+ if (m != null && m.x > 0 && m.x < 348 && m.y > 0 && m.y < 100) {
+ GraphData data = DATA.get(m.x);
+ int used = data.getUsedPercent();
+ graphics.setColor(new Color(0x000000));
+ graphics.drawLine(m.x, 1, m.x, 99);
+ graphics.drawOval(m.x - 2, 100 - used - 2, 5, 5);
+ graphics.setColor(data.getLineColor());
+ graphics.fillOval(m.x - 2, 100 - used - 2, 5, 5);
+ setToolTipText(String.format("<html><body>Used: %s mb (%s%%)<br/>%s</body></html>",
+ Math.round(data.getUsedMem() / 1024F / 1024F),
+ used, getTime(m.x)));
+ }
+ }
+
+ public String getTime(int halfSeconds) {
+ int millis = (348 - halfSeconds) / 2 * 1000;
+ return TIME_FORMAT.format(new Date((System.currentTimeMillis() - millis)));
+ }
+
+ public void stop() {
+ timer.stop();
+ }
+}
diff --git a/src/main/java/net/minecraft/server/gui/MinecraftServerGui.java b/src/main/java/net/minecraft/server/gui/MinecraftServerGui.java
index 75083eeb9b413e6dd5375007360dce6857a08fff..66464c10a6b33414c6d1b67b926a66c343d5f887 100644
--- a/src/main/java/net/minecraft/server/gui/MinecraftServerGui.java
+++ b/src/main/java/net/minecraft/server/gui/MinecraftServerGui.java
@@ -95,7 +95,7 @@ public class MinecraftServerGui extends JComponent {
private JComponent buildInfoPanel() {
JPanel jpanel = new JPanel(new BorderLayout());
- StatsComponent guistatscomponent = new StatsComponent(this.server);
+ com.destroystokyo.paper.gui.GuiStatsComponent guistatscomponent = new com.destroystokyo.paper.gui.GuiStatsComponent(this.server); // Paper
Collection<Runnable> collection = this.finalizers; // CraftBukkit - decompile error
Objects.requireNonNull(guistatscomponent);
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