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A library that provides algorithms to help optimize meshes.
/*
* Copyright LWJGL. All rights reserved.
* License terms: https://www.lwjgl.org/license
* MACHINE GENERATED FILE, DO NOT EDIT
*/
package org.lwjgl.util.meshoptimizer;
import org.jspecify.annotations.*;
import java.nio.*;
import org.lwjgl.*;
import org.lwjgl.system.*;
import static org.lwjgl.system.Checks.*;
import static org.lwjgl.system.MemoryUtil.*;
import static org.lwjgl.system.MemoryStack.*;
/**
* Vertex attribute stream.
*
* Each element takes size bytes, beginning at data, with stride controlling the spacing between successive elements ({@code stride} ≥ {@code size}).
*
* Layout
*
*
* struct meshopt_Stream {
* void const * data;
* size_t size;
* size_t stride;
* }
*/
@NativeType("struct meshopt_Stream")
public class MeshoptStream extends Struct implements NativeResource {
/** The struct size in bytes. */
public static final int SIZEOF;
/** The struct alignment in bytes. */
public static final int ALIGNOF;
/** The struct member offsets. */
public static final int
DATA,
SIZE,
STRIDE;
static {
Layout layout = __struct(
__member(POINTER_SIZE),
__member(POINTER_SIZE),
__member(POINTER_SIZE)
);
SIZEOF = layout.getSize();
ALIGNOF = layout.getAlignment();
DATA = layout.offsetof(0);
SIZE = layout.offsetof(1);
STRIDE = layout.offsetof(2);
}
protected MeshoptStream(long address, @Nullable ByteBuffer container) {
super(address, container);
}
@Override
protected MeshoptStream create(long address, @Nullable ByteBuffer container) {
return new MeshoptStream(address, container);
}
/**
* Creates a {@code MeshoptStream} instance at the current position of the specified {@link ByteBuffer} container. Changes to the buffer's content will be
* visible to the struct instance and vice versa.
*
* The created instance holds a strong reference to the container object.
*/
public MeshoptStream(ByteBuffer container) {
super(memAddress(container), __checkContainer(container, SIZEOF));
}
@Override
public int sizeof() { return SIZEOF; }
/**
* @return a {@link ByteBuffer} view of the data pointed to by the {@code data} field.
*
* @param capacity the number of elements in the returned buffer
*/
@NativeType("void const *")
public ByteBuffer data(int capacity) { return ndata(address(), capacity); }
/** @return the value of the {@code size} field. */
@NativeType("size_t")
public long size() { return nsize(address()); }
/** @return the value of the {@code stride} field. */
@NativeType("size_t")
public long stride() { return nstride(address()); }
/** Sets the address of the specified {@link ByteBuffer} to the {@code data} field. */
public MeshoptStream data(@NativeType("void const *") ByteBuffer value) { ndata(address(), value); return this; }
/** Sets the specified value to the {@code size} field. */
public MeshoptStream size(@NativeType("size_t") long value) { nsize(address(), value); return this; }
/** Sets the specified value to the {@code stride} field. */
public MeshoptStream stride(@NativeType("size_t") long value) { nstride(address(), value); return this; }
/** Initializes this struct with the specified values. */
public MeshoptStream set(
ByteBuffer data,
long size,
long stride
) {
data(data);
size(size);
stride(stride);
return this;
}
/**
* Copies the specified struct data to this struct.
*
* @param src the source struct
*
* @return this struct
*/
public MeshoptStream set(MeshoptStream src) {
memCopy(src.address(), address(), SIZEOF);
return this;
}
// -----------------------------------
/** Returns a new {@code MeshoptStream} instance allocated with {@link MemoryUtil#memAlloc memAlloc}. The instance must be explicitly freed. */
public static MeshoptStream malloc() {
return new MeshoptStream(nmemAllocChecked(SIZEOF), null);
}
/** Returns a new {@code MeshoptStream} instance allocated with {@link MemoryUtil#memCalloc memCalloc}. The instance must be explicitly freed. */
public static MeshoptStream calloc() {
return new MeshoptStream(nmemCallocChecked(1, SIZEOF), null);
}
/** Returns a new {@code MeshoptStream} instance allocated with {@link BufferUtils}. */
public static MeshoptStream create() {
ByteBuffer container = BufferUtils.createByteBuffer(SIZEOF);
return new MeshoptStream(memAddress(container), container);
}
/** Returns a new {@code MeshoptStream} instance for the specified memory address. */
public static MeshoptStream create(long address) {
return new MeshoptStream(address, null);
}
/** Like {@link #create(long) create}, but returns {@code null} if {@code address} is {@code NULL}. */
public static @Nullable MeshoptStream createSafe(long address) {
return address == NULL ? null : new MeshoptStream(address, null);
}
/**
* Returns a new {@link MeshoptStream.Buffer} instance allocated with {@link MemoryUtil#memAlloc memAlloc}. The instance must be explicitly freed.
*
* @param capacity the buffer capacity
*/
public static MeshoptStream.Buffer malloc(int capacity) {
return new Buffer(nmemAllocChecked(__checkMalloc(capacity, SIZEOF)), capacity);
}
/**
* Returns a new {@link MeshoptStream.Buffer} instance allocated with {@link MemoryUtil#memCalloc memCalloc}. The instance must be explicitly freed.
*
* @param capacity the buffer capacity
*/
public static MeshoptStream.Buffer calloc(int capacity) {
return new Buffer(nmemCallocChecked(capacity, SIZEOF), capacity);
}
/**
* Returns a new {@link MeshoptStream.Buffer} instance allocated with {@link BufferUtils}.
*
* @param capacity the buffer capacity
*/
public static MeshoptStream.Buffer create(int capacity) {
ByteBuffer container = __create(capacity, SIZEOF);
return new Buffer(memAddress(container), container, -1, 0, capacity, capacity);
}
/**
* Create a {@link MeshoptStream.Buffer} instance at the specified memory.
*
* @param address the memory address
* @param capacity the buffer capacity
*/
public static MeshoptStream.Buffer create(long address, int capacity) {
return new Buffer(address, capacity);
}
/** Like {@link #create(long, int) create}, but returns {@code null} if {@code address} is {@code NULL}. */
public static MeshoptStream.@Nullable Buffer createSafe(long address, int capacity) {
return address == NULL ? null : new Buffer(address, capacity);
}
/**
* Returns a new {@code MeshoptStream} instance allocated on the specified {@link MemoryStack}.
*
* @param stack the stack from which to allocate
*/
public static MeshoptStream malloc(MemoryStack stack) {
return new MeshoptStream(stack.nmalloc(ALIGNOF, SIZEOF), null);
}
/**
* Returns a new {@code MeshoptStream} instance allocated on the specified {@link MemoryStack} and initializes all its bits to zero.
*
* @param stack the stack from which to allocate
*/
public static MeshoptStream calloc(MemoryStack stack) {
return new MeshoptStream(stack.ncalloc(ALIGNOF, 1, SIZEOF), null);
}
/**
* Returns a new {@link MeshoptStream.Buffer} instance allocated on the specified {@link MemoryStack}.
*
* @param stack the stack from which to allocate
* @param capacity the buffer capacity
*/
public static MeshoptStream.Buffer malloc(int capacity, MemoryStack stack) {
return new Buffer(stack.nmalloc(ALIGNOF, capacity * SIZEOF), capacity);
}
/**
* Returns a new {@link MeshoptStream.Buffer} instance allocated on the specified {@link MemoryStack} and initializes all its bits to zero.
*
* @param stack the stack from which to allocate
* @param capacity the buffer capacity
*/
public static MeshoptStream.Buffer calloc(int capacity, MemoryStack stack) {
return new Buffer(stack.ncalloc(ALIGNOF, capacity, SIZEOF), capacity);
}
// -----------------------------------
/** Unsafe version of {@link #data(int) data}. */
public static ByteBuffer ndata(long struct, int capacity) { return memByteBuffer(memGetAddress(struct + MeshoptStream.DATA), capacity); }
/** Unsafe version of {@link #size}. */
public static long nsize(long struct) { return memGetAddress(struct + MeshoptStream.SIZE); }
/** Unsafe version of {@link #stride}. */
public static long nstride(long struct) { return memGetAddress(struct + MeshoptStream.STRIDE); }
/** Unsafe version of {@link #data(ByteBuffer) data}. */
public static void ndata(long struct, ByteBuffer value) { memPutAddress(struct + MeshoptStream.DATA, memAddress(value)); }
/** Unsafe version of {@link #size(long) size}. */
public static void nsize(long struct, long value) { memPutAddress(struct + MeshoptStream.SIZE, value); }
/** Unsafe version of {@link #stride(long) stride}. */
public static void nstride(long struct, long value) { memPutAddress(struct + MeshoptStream.STRIDE, value); }
/**
* Validates pointer members that should not be {@code NULL}.
*
* @param struct the struct to validate
*/
public static void validate(long struct) {
check(memGetAddress(struct + MeshoptStream.DATA));
}
// -----------------------------------
/** An array of {@link MeshoptStream} structs. */
public static class Buffer extends StructBuffer implements NativeResource {
private static final MeshoptStream ELEMENT_FACTORY = MeshoptStream.create(-1L);
/**
* Creates a new {@code MeshoptStream.Buffer} instance backed by the specified container.
*
* Changes to the container's content will be visible to the struct buffer instance and vice versa. The two buffers' position, limit, and mark values
* will be independent. The new buffer's position will be zero, its capacity and its limit will be the number of bytes remaining in this buffer divided
* by {@link MeshoptStream#SIZEOF}, and its mark will be undefined.
*
* The created buffer instance holds a strong reference to the container object.
*/
public Buffer(ByteBuffer container) {
super(container, container.remaining() / SIZEOF);
}
public Buffer(long address, int cap) {
super(address, null, -1, 0, cap, cap);
}
Buffer(long address, @Nullable ByteBuffer container, int mark, int pos, int lim, int cap) {
super(address, container, mark, pos, lim, cap);
}
@Override
protected Buffer self() {
return this;
}
@Override
protected Buffer create(long address, @Nullable ByteBuffer container, int mark, int position, int limit, int capacity) {
return new Buffer(address, container, mark, position, limit, capacity);
}
@Override
protected MeshoptStream getElementFactory() {
return ELEMENT_FACTORY;
}
/**
* @return a {@link ByteBuffer} view of the data pointed to by the {@code data} field.
*
* @param capacity the number of elements in the returned buffer
*/
@NativeType("void const *")
public ByteBuffer data(int capacity) { return MeshoptStream.ndata(address(), capacity); }
/** @return the value of the {@code size} field. */
@NativeType("size_t")
public long size() { return MeshoptStream.nsize(address()); }
/** @return the value of the {@code stride} field. */
@NativeType("size_t")
public long stride() { return MeshoptStream.nstride(address()); }
/** Sets the address of the specified {@link ByteBuffer} to the {@code data} field. */
public MeshoptStream.Buffer data(@NativeType("void const *") ByteBuffer value) { MeshoptStream.ndata(address(), value); return this; }
/** Sets the specified value to the {@code size} field. */
public MeshoptStream.Buffer size(@NativeType("size_t") long value) { MeshoptStream.nsize(address(), value); return this; }
/** Sets the specified value to the {@code stride} field. */
public MeshoptStream.Buffer stride(@NativeType("size_t") long value) { MeshoptStream.nstride(address(), value); return this; }
}
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