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minor perf improvements

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This commit is contained in:
dfsek
2021-01-13 14:03:52 -07:00
parent 54f732176d
commit d1c018690d
7 changed files with 40 additions and 52 deletions
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27
common/src/main/java/com/dfsek/terra/api/math/noise/samplers/FastNoiseLite.java
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@@ -1616,30 +1616,29 @@ public class FastNoiseLite implements NoiseSampler {
return lerp(xf0, xf1, ys) * 1.4247691104677813f;
}
private static long hash(long in) {
in = (in + 0x7ed55d16) + (in << 12);
in = (in ^ 0xc761c23c) ^ (in >> 19);
in = (in + 0x165667b1) + (in << 5);
in = (in + 0xd3a2646c) ^ (in << 9);
in = (in + 0xfd7046c5) + (in << 3);
in = (in ^ 0xb55a4f09) ^ (in >> 16);
return in;
long murmur64(long h) {
h ^= h >>> 33;
h *= 0xff51afd7ed558ccdL;
h ^= h >>> 33;
h *= 0xc4ceb9fe1a85ec53L;
h ^= h >>> 33;
return h;
}
private double singleWhiteNoise(int seed, double x, double y, double z) {
long hashX = hash(Double.doubleToRawLongBits(x) ^ seed);
long hashZ = hash(Double.doubleToRawLongBits(y) ^ seed);
long hashX = murmur64(Double.doubleToRawLongBits(x) ^ seed);
long hashZ = murmur64(Double.doubleToRawLongBits(y) ^ seed);
long hash = (((hashX ^ (hashX >>> 32)) + ((hashZ ^ (hashZ >>> 32)) << 32)) ^ seed) + Double.doubleToRawLongBits(z);
long base = ((hash(hash)) & 0x000fffffffffffffL)
long base = ((murmur64(hash)) & 0x000fffffffffffffL)
+ POSITIVE_POW1; // Sign and exponent
return (Double.longBitsToDouble(base) - 1.5) * 2;
}
private double singleWhiteNoise(int seed, double x, double y) {
long hashX = hash(Double.doubleToRawLongBits(x) ^ seed);
long hashZ = hash(Double.doubleToRawLongBits(y) ^ seed);
long hashX = murmur64(Double.doubleToRawLongBits(x) ^ seed);
long hashZ = murmur64(Double.doubleToRawLongBits(y) ^ seed);
long hash = ((hashX ^ (hashX >>> 32)) + ((hashZ ^ (hashZ >>> 32)) << 32)) ^ seed;
long base = (hash(hash) & 0x000fffffffffffffL)
long base = (murmur64(hash) & 0x000fffffffffffffL)
+ POSITIVE_POW1; // Sign and exponent
return (Double.longBitsToDouble(base) - 1.5) * 2;
}

2
common/src/main/java/com/dfsek/terra/biome/StandardBiomeProvider.java
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@@ -41,7 +41,7 @@ public class StandardBiomeProvider implements BiomeProvider {
}
}
);
private int resolution = 4;
private int resolution = 1;
protected StandardBiomeProvider(BiomePipeline pipeline) {
this.pipeline = pipeline;

2
common/src/main/java/com/dfsek/terra/biome/pipeline/BiomePipeline.java
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@@ -21,7 +21,7 @@ public class BiomePipeline {
}
public BiomeHolder getBiomes(int x, int z) {
BiomeHolder holder = new TerraBiomeHolder(25, new Vector2(x * (init - 1), z * (init - 1)));
BiomeHolder holder = new TerraBiomeHolder(init, new Vector2(x * (init - 1), z * (init - 1)));
holder.fill(source);
for(Stage stage : stages) holder = stage.apply(holder);
return holder;

12
common/src/main/java/com/dfsek/terra/biome/pipeline/TerraBiomeHolder.java
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@@ -12,6 +12,7 @@ public class TerraBiomeHolder implements BiomeHolder {
private TerraBiome[][] biomes;
public TerraBiomeHolder(int width, Vector2 origin) {
if(width % 2 == 0) throw new IllegalArgumentException();
this.width = width;
biomes = new TerraBiome[width][width];
this.origin = origin;
@@ -48,11 +49,7 @@ public class TerraBiomeHolder implements BiomeHolder {
public void mutate(BiomeMutator mutator) {
for(int x = 0; x < width; x++) {
for(int z = 0; z < width; z++) {
BiomeMutator.ViewPoint viewPoint = new BiomeMutator.ViewPoint(new TerraBiome[][] {
{getBiomeRaw(x - 1, z + 1), getBiomeRaw(x, z + 1), getBiomeRaw(x + 1, z + 1)},
{getBiomeRaw(x - 1, z), getBiomeRaw(x, z), getBiomeRaw(x + 1, z)},
{getBiomeRaw(x - 1, z - 1), getBiomeRaw(x, z - 1), getBiomeRaw(x + 1, z - 1)}
});
BiomeMutator.ViewPoint viewPoint = new BiomeMutator.ViewPoint(this, x, z);
biomes[x][z] = mutator.mutate(viewPoint, x + origin.getX(), z + origin.getZ());
}
}
@@ -67,11 +64,6 @@ public class TerraBiomeHolder implements BiomeHolder {
}
}
private TerraBiome getBiomeRaw(int x, int z) {
if(x >= width || z >= width || x < 0 || z < 0) return null;
return biomes[x][z];
}
@Override
public TerraBiome getBiome(int x, int z) {
if(x >= width || z >= width || x < 0 || z < 0) return null;

12
common/src/main/java/com/dfsek/terra/biome/pipeline/mutator/BiomeMutator.java
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@@ -1,19 +1,25 @@
package com.dfsek.terra.biome.pipeline.mutator;
import com.dfsek.terra.api.world.biome.TerraBiome;
import com.dfsek.terra.biome.pipeline.BiomeHolder;
public interface BiomeMutator {
TerraBiome mutate(ViewPoint viewPoint, double x, double z);
class ViewPoint {
private final TerraBiome[][] biomes;
private final BiomeHolder biomes;
private final int offX;
private final int offZ;
public ViewPoint(TerraBiome[][] biomes) {
public ViewPoint(BiomeHolder biomes, int offX, int offZ) {
this.biomes = biomes;
this.offX = offX;
this.offZ = offZ;
}
public TerraBiome getBiome(int x, int z) {
return biomes[x + 1][z + 1];
return biomes.getBiome(x + offX, z + offZ);
}
}
}

2
common/src/main/java/com/dfsek/terra/config/base/ConfigPack.java
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@@ -146,6 +146,8 @@ public class ConfigPack implements LoaderRegistrar {
selfLoader.load(template, stream);
load(new ZIPLoader(file), l, main);
template.getProviderBuilder().build(0); // Build dummy provider to catch errors at load time.
}
private void load(Loader loader, long start, TerraPlugin main) throws ConfigException {

35
common/src/test/java/biome/BiomeTest.java
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@@ -6,7 +6,8 @@ import com.dfsek.terra.api.math.noise.samplers.NoiseSampler;
import com.dfsek.terra.api.platform.world.World;
import com.dfsek.terra.api.world.biome.Generator;
import com.dfsek.terra.api.world.biome.TerraBiome;
import com.dfsek.terra.biome.pipeline.BiomeHolder;
import com.dfsek.terra.biome.BiomeProvider;
import com.dfsek.terra.biome.StandardBiomeProvider;
import com.dfsek.terra.biome.pipeline.BiomePipeline;
import com.dfsek.terra.biome.pipeline.expand.FractalExpander;
import com.dfsek.terra.biome.pipeline.mutator.BorderMutator;
@@ -60,9 +61,8 @@ public class BiomeTest {
BiomeSource source = new RandomSource(climate, sourceSampler);
long s = System.nanoTime();
BiomePipeline pipeline = new BiomePipeline.BiomePipelineBuilder(20)
BiomeProvider provider = new StandardBiomeProvider.StandardBiomeProviderBuilder((seed) -> new BiomePipeline.BiomePipelineBuilder(3)
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(1))))
.addStage(new MutatorStage(new ReplaceMutator("OCEAN_TEMP", oceanBiomes, whiteNoise(243))))
.addStage(new MutatorStage(new ReplaceMutator("LAND_TEMP", landBiomes, whiteNoise(243))))
@@ -73,21 +73,10 @@ public class BiomeTest {
.addStage(new MutatorStage(new BorderMutator(Sets.newHashSet("OCEAN"), "LAND", whiteNoise(1234), beachBiomes)))
.addStage(new ExpanderStage(new FractalExpander(whiteNoise(5))))
.addStage(new MutatorStage(new SmoothMutator(whiteNoise(6))))
.build(source);
.build(source)).build(0);
BiomeHolder holder = pipeline.getBiomes(0, 0);
BiomeHolder holder2 = pipeline.getBiomes(1, 0);
BiomeHolder holder3 = pipeline.getBiomes(0, 1);
BiomeHolder holder4 = pipeline.getBiomes(1, 1);
long e = System.nanoTime();
int size = pipeline.getSize();
int og = size;
size *= 2;
double time = e - s;
time /= 1000000;
System.out.println(time + "ms for " + size + "x" + size);
int size = 1000;
BufferedImage image = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
@@ -95,17 +84,17 @@ public class BiomeTest {
System.out.println(size);
long s = System.nanoTime();
for(int x = 0; x < size; x++) {
for(int z = 0; z < size; z++) {
if(x < og) {
if(z < og) image.setRGB(x, z, holder.getBiome(x, z).getColor());
else image.setRGB(x, z, holder3.getBiome(x, z - og).getColor());
} else {
if(z < og) image.setRGB(x, z, holder2.getBiome(x - og, z).getColor());
else image.setRGB(x, z, holder4.getBiome(x - og, z - og).getColor());
}
image.setRGB(x, z, provider.getBiome(x, z).getColor());
}
}
long e = System.nanoTime();
double time = e - s;
time /= 1000000;
System.out.println(time + "ms for " + size + "x" + size);
JFrame frame = new JFrame("TerraBiome Viewer");