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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| before_install: | ||
| - sdk install java 21.0.1-tem | ||
| - sdk use java 21.0.1-tem | ||
| install: | ||
| - ./gradlew publishToMavenLocal | ||
| - echo -n > gradle.properties |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| package gltfrenzy.io; | ||
|
|
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| import java.io.*; | ||
|
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| /** | ||
| * A little-endian {@link DataInputStream}. | ||
| * @author GlennFolker | ||
| */ | ||
| public class LEDataInputStream extends InputStream implements DataInput{ | ||
| private final byte[] buffer = new byte[8]; | ||
| private final DataInputStream read; | ||
|
|
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| public LEDataInputStream(InputStream in){ | ||
| read = new DataInputStream(in); | ||
| } | ||
|
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| @Override | ||
| public int available() throws IOException{ | ||
| return read.available(); | ||
| } | ||
|
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| @Override | ||
| public final short readShort() throws IOException{ | ||
| read.readFully(buffer, 0, 2); | ||
| return (short)( | ||
| (buffer[1] & 0xff) << 8 | | ||
| (buffer[0] & 0xff) | ||
| ); | ||
| } | ||
|
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||
| @Override | ||
| public final int readUnsignedShort() throws IOException{ | ||
| read.readFully(buffer, 0, 2); | ||
| return ( | ||
| (buffer[1] & 0xff) << 8 | | ||
| (buffer[0] & 0xff) | ||
| ); | ||
| } | ||
|
|
||
| @Override | ||
| public final char readChar() throws IOException{ | ||
| read.readFully(buffer, 0, 2); | ||
| return (char)( | ||
| (buffer[1] & 0xff) << 8 | | ||
| (buffer[0] & 0xff) | ||
| ); | ||
| } | ||
|
|
||
| @Override | ||
| public final int readInt() throws IOException{ | ||
| read.readFully(buffer, 0, 4); | ||
| return | ||
| (buffer[3]) << 24 | | ||
| (buffer[2] & 0xff) << 16 | | ||
| (buffer[1] & 0xff) << 8 | | ||
| (buffer[0] & 0xff); | ||
| } | ||
|
|
||
| @Override | ||
| public final long readLong() throws IOException{ | ||
| read.readFully(buffer, 0, 8); | ||
| return | ||
| (long)(buffer[7]) << 56 | | ||
| (long)(buffer[6] & 0xff) << 48 | | ||
| (long)(buffer[5] & 0xff) << 40 | | ||
| (long)(buffer[4] & 0xff) << 32 | | ||
| (long)(buffer[3] & 0xff) << 24 | | ||
| (long)(buffer[2] & 0xff) << 16 | | ||
| (long)(buffer[1] & 0xff) << 8 | | ||
| (long)(buffer[0] & 0xff); | ||
| } | ||
|
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| @Override | ||
| public final float readFloat() throws IOException{ | ||
| return Float.intBitsToFloat(readInt()); | ||
| } | ||
|
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||
| @Override | ||
| public final double readDouble() throws IOException{ | ||
| return Double.longBitsToDouble(readLong()); | ||
| } | ||
|
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||
| @Override | ||
| public final int read(byte[] b, int off, int len) throws IOException{ | ||
| return read.read(b, off, len); | ||
| } | ||
|
|
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| @Override | ||
| public final void readFully(byte[] b) throws IOException{ | ||
| read.readFully(b, 0, b.length); | ||
| } | ||
|
|
||
| @Override | ||
| public final void readFully(byte[] b, int off, int len) throws IOException{ | ||
| read.readFully(b, off, len); | ||
| } | ||
|
|
||
| @Override | ||
| public final int skipBytes(int n) throws IOException{ | ||
| return read.skipBytes(n); | ||
| } | ||
|
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| @Override | ||
| public final boolean readBoolean() throws IOException{ | ||
| return read.readBoolean(); | ||
| } | ||
|
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||
| @Override | ||
| public final byte readByte() throws IOException{ | ||
| return read.readByte(); | ||
| } | ||
|
|
||
| @Override | ||
| public int read() throws IOException{ | ||
| return read.read(); | ||
| } | ||
|
|
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| @Override | ||
| public final int readUnsignedByte() throws IOException{ | ||
| return read.readUnsignedByte(); | ||
| } | ||
|
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| @Override | ||
| @Deprecated | ||
| public final String readLine() throws IOException{ | ||
| return read.readLine(); | ||
| } | ||
|
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| @Override | ||
| public final String readUTF() throws IOException{ | ||
| return read.readUTF(); | ||
| } | ||
|
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||
| @Override | ||
| public final void close() throws IOException{ | ||
| read.close(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| package gltfrenzy.loader; | ||
|
|
||
| import arc.files.*; | ||
| import arc.util.io.*; | ||
| import arc.util.serialization.*; | ||
| import gltfrenzy.data.*; | ||
| import gltfrenzy.io.*; | ||
|
|
||
| import java.io.*; | ||
| import java.nio.*; | ||
| import java.nio.charset.*; | ||
|
|
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| /** | ||
| * Reader implementation for {@code .glb} monolithic binary file. | ||
| * @author GlennFolker | ||
| */ | ||
| public class GlbReader implements Scenes3DReader{ | ||
| @Override | ||
| public Scenes3DData read(Fi file) throws IOException{ | ||
| try(var stream = new CounterInputStream(file.read()); | ||
| var read = new LEDataInputStream(stream); | ||
| ){ | ||
| int fileLen = readHeader(read); | ||
|
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| var data = new Scenes3DData(); | ||
| for(int i = 0; stream.count < fileLen; i++){ | ||
| byte[] chunk = new byte[read.readInt()]; | ||
| int chunkType = read.readInt(); | ||
|
|
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| read.readFully(chunk); | ||
| switch(chunkType){ | ||
| case 0x4e4f534a -> { | ||
| if(i != 0) throw new IOException("JSON chunk found at index " + i + "."); | ||
| data.spec = Gltf.create(Jval.read(new String(chunk, StandardCharsets.UTF_8))); | ||
| data.buffers = new ByteBuffer[data.spec.buffers.length]; | ||
| } | ||
| case 0x004e4942 -> { | ||
| if(i != 1) throw new IOException("BIN chunk found at index " + i); | ||
| var buffer = data.buffers[0] = ByteBuffer.wrap(chunk); | ||
| buffer.order(ByteOrder.LITTLE_ENDIAN); | ||
| } | ||
| default -> { | ||
| if(i == 0) throw new IOException("Custom chunk found at index 0."); | ||
| } | ||
| } | ||
| } | ||
|
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| return data; | ||
| } | ||
| } | ||
|
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| protected int readHeader(DataInput read) throws IOException{ | ||
| int magic = read.readInt(); | ||
| if(magic != 0x46546c67) throw new IOException("Invalid header 0x" + Integer.toHexString(magic) + "."); | ||
|
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| int version = read.readInt(); | ||
| if(version != 2) throw new IOException("Unsupported container version " + version + "."); | ||
|
|
||
| return read.readInt(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| package gltfrenzy.loader; | ||
|
|
||
| import arc.files.*; | ||
| import arc.util.serialization.*; | ||
| import gltfrenzy.data.*; | ||
|
|
||
| import java.io.*; | ||
| import java.nio.*; | ||
|
|
||
| /** | ||
| * Reader implementation for {@code .gltf} textual file. | ||
| * @author GlennFolker | ||
| */ | ||
| public class GltfReader implements Scenes3DReader{ | ||
| @Override | ||
| public Scenes3DData read(Fi file) throws IOException{ | ||
| try(var reader = file.reader("UTF-8")){ | ||
| int len = (int)file.length(); | ||
| len = len == 0 ? 4096 : len; | ||
|
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| var builder = new StringBuilder(len); | ||
| char[] buffer = new char[len]; | ||
| while(true){ | ||
| int read = reader.read(buffer); | ||
| if(read == -1) break; | ||
|
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| builder.append(buffer, 0, read); | ||
| } | ||
|
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| var data = new Scenes3DData(); | ||
| data.spec = Gltf.create(Jval.read(builder.toString())); | ||
| data.buffers = new ByteBuffer[data.spec.buffers.length]; | ||
| return data; | ||
| } | ||
| } | ||
| } |
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