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Remove some AdaptivePalette fields

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This commit is contained in:
themode 2022-02-25 22:36:39 +01:00
parent 58b103afd6
commit 8839503767
5 changed files with 29 additions and 30 deletions
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2
jmh-benchmarks/src/jmh/java/net/minestom/jmh/palette/PaletteGetBenchmark.java
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@ -22,7 +22,7 @@ public class PaletteGetBenchmark {
@Setup @Setup
public void setup() { public void setup() {
palette = Palette.newPalette(dimension, 15, 4, 1); palette = Palette.newPalette(dimension, 15, 4);
AtomicInteger value = new AtomicInteger(); AtomicInteger value = new AtomicInteger();
palette.setAll((x, y, z) -> value.getAndIncrement()); palette.setAll((x, y, z) -> value.getAndIncrement());
} }

13
src/main/java/net/minestom/server/instance/palette/AdaptivePalette.java
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@ -13,20 +13,16 @@ import java.util.function.IntUnaryOperator;
*/ */
final class AdaptivePalette implements Palette { final class AdaptivePalette implements Palette {
final int dimension; final int dimension;
final int dimensionBitCount;
final int maxBitsPerEntry; final int maxBitsPerEntry;
final int defaultBitsPerEntry; final int defaultBitsPerEntry;
final int bitsIncrement;
SpecializedPalette palette; SpecializedPalette palette;
AdaptivePalette(int dimension, int maxBitsPerEntry, int bitsPerEntry, int bitsIncrement) { AdaptivePalette(int dimension, int maxBitsPerEntry, int bitsPerEntry) {
this.dimensionBitCount = validateDimension(dimension); validateDimension(dimension);
this.dimension = dimension; this.dimension = dimension;
this.maxBitsPerEntry = maxBitsPerEntry; this.maxBitsPerEntry = maxBitsPerEntry;
this.defaultBitsPerEntry = bitsPerEntry; this.defaultBitsPerEntry = bitsPerEntry;
this.bitsIncrement = bitsIncrement;
this.palette = new FilledPalette(dimension, 0); this.palette = new FilledPalette(dimension, 0);
} }
@ -132,8 +128,9 @@ final class AdaptivePalette implements Palette {
flexiblePalette.getAll((x, y, z, value) -> entries.add(value)); flexiblePalette.getAll((x, y, z, value) -> entries.add(value));
if (entries.size() == 1) { if (entries.size() == 1) {
return new FilledPalette(dimension, entries.iterator().nextInt()); return new FilledPalette(dimension, entries.iterator().nextInt());
} else { } else if (flexiblePalette.bitsPerEntry() > defaultBitsPerEntry) {
final int bitsPerEntry = Math.max(4, MathUtils.bitsToRepresent(entries.size() - 1)); final int bitsPerEntry = MathUtils.bitsToRepresent(entries.size() - 1);
assert bitsPerEntry < flexiblePalette.bitsPerEntry();
flexiblePalette.resize(bitsPerEntry); flexiblePalette.resize(bitsPerEntry);
return flexiblePalette; return flexiblePalette;
} }

8
src/main/java/net/minestom/server/instance/palette/FlexiblePalette.java
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@ -30,6 +30,7 @@ final class FlexiblePalette implements SpecializedPalette, Cloneable {
// Specific to this palette type // Specific to this palette type
private final AdaptivePalette adaptivePalette; private final AdaptivePalette adaptivePalette;
private final int dimensionBitCount;
private int bitsPerEntry; private int bitsPerEntry;
private boolean hasPalette; private boolean hasPalette;
@ -44,6 +45,7 @@ final class FlexiblePalette implements SpecializedPalette, Cloneable {
FlexiblePalette(AdaptivePalette adaptivePalette, int bitsPerEntry) { FlexiblePalette(AdaptivePalette adaptivePalette, int bitsPerEntry) {
this.adaptivePalette = adaptivePalette; this.adaptivePalette = adaptivePalette;
this.dimensionBitCount = (int) (Math.log(adaptivePalette.dimension()) / Math.log(2));
this.bitsPerEntry = bitsPerEntry; this.bitsPerEntry = bitsPerEntry;
this.hasPalette = bitsPerEntry <= maxBitsPerEntry(); this.hasPalette = bitsPerEntry <= maxBitsPerEntry();
@ -257,7 +259,7 @@ final class FlexiblePalette implements SpecializedPalette, Cloneable {
final int size = maxSize(); final int size = maxSize();
final int dimensionMinus = dimension - 1; final int dimensionMinus = dimension - 1;
final int[] ids = hasPalette ? paletteToValueList.elements() : null; final int[] ids = hasPalette ? paletteToValueList.elements() : null;
final int dimensionBitCount = adaptivePalette.dimensionBitCount; final int dimensionBitCount = this.dimensionBitCount;
final int shiftedDimensionBitCount = dimensionBitCount << 1; final int shiftedDimensionBitCount = dimensionBitCount << 1;
for (int i = 0; i < values.length; i++) { for (int i = 0; i < values.length; i++) {
final long value = values[i]; final long value = values[i];
@ -329,7 +331,7 @@ final class FlexiblePalette implements SpecializedPalette, Cloneable {
final int lastPaletteIndex = this.lastPaletteIndex; final int lastPaletteIndex = this.lastPaletteIndex;
if (lastPaletteIndex >= maxPaletteSize(bitsPerEntry)) { if (lastPaletteIndex >= maxPaletteSize(bitsPerEntry)) {
// Palette is full, must resize // Palette is full, must resize
resize(bitsPerEntry + adaptivePalette.bitsIncrement); resize(bitsPerEntry + 1);
return getPaletteIndex(value); return getPaletteIndex(value);
} }
final int lookup = valueToPaletteMap.putIfAbsent(value, lastPaletteIndex); final int lookup = valueToPaletteMap.putIfAbsent(value, lastPaletteIndex);
@ -340,7 +342,7 @@ final class FlexiblePalette implements SpecializedPalette, Cloneable {
} }
int getSectionIndex(int x, int y, int z) { int getSectionIndex(int x, int y, int z) {
final int dimensionBitCount = adaptivePalette.dimensionBitCount; final int dimensionBitCount = this.dimensionBitCount;
return y << (dimensionBitCount << 1) | z << dimensionBitCount | x; return y << (dimensionBitCount << 1) | z << dimensionBitCount | x;
} }

8
src/main/java/net/minestom/server/instance/palette/Palette.java
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@ -12,15 +12,15 @@ import java.util.function.IntUnaryOperator;
*/ */
public interface Palette extends Writeable { public interface Palette extends Writeable {
static Palette blocks() { static Palette blocks() {
return newPalette(16, 8, 6, 1); return newPalette(16, 8, 4);
} }
static Palette biomes() { static Palette biomes() {
return newPalette(4, 2, 1, 1); return newPalette(4, 3, 1);
} }
static Palette newPalette(int dimension, int maxBitsPerEntry, int bitsPerEntry, int bitIncrement) { static Palette newPalette(int dimension, int maxBitsPerEntry, int bitsPerEntry) {
return new AdaptivePalette(dimension, maxBitsPerEntry, bitsPerEntry, bitIncrement); return new AdaptivePalette(dimension, maxBitsPerEntry, bitsPerEntry);
} }
int get(int x, int y, int z); int get(int x, int y, int z);

28
src/test/java/net/minestom/server/instance/palette/PaletteTest.java
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@ -71,7 +71,7 @@ public class PaletteTest {
@Test @Test
public void resize() { public void resize() {
Palette palette = Palette.newPalette(16, 5, 2, 1); Palette palette = Palette.newPalette(16, 5, 2);
palette.set(0, 0, 0, 1); palette.set(0, 0, 0, 1);
assertEquals(2, palette.bitsPerEntry()); assertEquals(2, palette.bitsPerEntry());
palette.set(0, 0, 1, 2); palette.set(0, 0, 1, 2);
@ -252,7 +252,7 @@ public class PaletteTest {
@Test @Test
public void replaceLoop() { public void replaceLoop() {
var palette = Palette.newPalette(2, 15, 4, 1); var palette = Palette.newPalette(2, 15, 4);
palette.setAll((x, y, z) -> x + y + z); palette.setAll((x, y, z) -> x + y + z);
final int dimension = palette.dimension(); final int dimension = palette.dimension();
for (int x = 0; x < dimension; x++) { for (int x = 0; x < dimension; x++) {
@ -266,21 +266,21 @@ public class PaletteTest {
@Test @Test
public void dimension() { public void dimension() {
assertThrows(Exception.class, () -> Palette.newPalette(-4, 5, 3, 1)); assertThrows(Exception.class, () -> Palette.newPalette(-4, 5, 3));
assertThrows(Exception.class, () -> Palette.newPalette(0, 5, 3, 1)); assertThrows(Exception.class, () -> Palette.newPalette(0, 5, 3));
assertThrows(Exception.class, () -> Palette.newPalette(1, 5, 3, 1)); assertThrows(Exception.class, () -> Palette.newPalette(1, 5, 3));
assertDoesNotThrow(() -> Palette.newPalette(2, 5, 3, 1)); assertDoesNotThrow(() -> Palette.newPalette(2, 5, 3));
assertThrows(Exception.class, () -> Palette.newPalette(3, 5, 3, 1)); assertThrows(Exception.class, () -> Palette.newPalette(3, 5, 3));
assertDoesNotThrow(() -> Palette.newPalette(4, 5, 3, 1)); assertDoesNotThrow(() -> Palette.newPalette(4, 5, 3));
assertThrows(Exception.class, () -> Palette.newPalette(6, 5, 3, 1)); assertThrows(Exception.class, () -> Palette.newPalette(6, 5, 3));
assertDoesNotThrow(() -> Palette.newPalette(16, 5, 3, 1)); assertDoesNotThrow(() -> Palette.newPalette(16, 5, 3));
} }
private static List<Palette> testPalettes() { private static List<Palette> testPalettes() {
return List.of( return List.of(
Palette.newPalette(2, 5, 3, 1), Palette.newPalette(2, 5, 3),
Palette.newPalette(4, 5, 3, 1), Palette.newPalette(4, 5, 3),
Palette.newPalette(8, 5, 3, 1), Palette.newPalette(8, 5, 3),
Palette.newPalette(16, 5, 3, 1)); Palette.newPalette(16, 5, 3));
} }
} }