org.lwjgl.opengles.NVFence Maven / Gradle / Ivy
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/*
* Copyright LWJGL. All rights reserved.
* License terms: https://www.lwjgl.org/license
* MACHINE GENERATED FILE, DO NOT EDIT
*/
package org.lwjgl.opengles;
import java.nio.*;
import org.lwjgl.system.*;
import static org.lwjgl.system.Checks.*;
import static org.lwjgl.system.JNI.*;
import static org.lwjgl.system.MemoryStack.*;
import static org.lwjgl.system.MemoryUtil.*;
/**
* Native bindings to the NV_fence extension.
*
* The goal of this extension is provide a finer granularity of synchronizing GL command completion than offered by standard OpenGL, which offers only two
* mechanisms for synchronization: Flush and Finish. Since Flush merely assures the user that the commands complete in a finite (though undetermined)
* amount of time, it is, thus, of only modest utility. Finish, on the other hand, stalls CPU execution until all pending GL commands have completed. This
* extension offers a middle ground - the ability to "finish" a subset of the command stream, and the ability to determine whether a given command has
* completed or not.
*
* This extension introduces the concept of a "fence" to the OpenGL command stream. Once the fence is inserted into the command stream, it can be queried
* for a given condition - typically, its completion. Moreover, the application may also request a partial Finish -- that is, all commands prior to the
* fence will be forced to complete until control is returned to the calling process. These new mechanisms allow for synchronization between the host CPU
* and the GPU, which may be accessing the same resources (typically memory).
*
* This extension is useful in conjunction with NV_vertex_array_range to determine when vertex information has been pulled from the vertex array range.
* Once a fence has been tested TRUE or finished, all vertex indices issued before the fence must have been pulled. This ensures that the vertex data
* memory corresponding to the issued vertex indices can be safely modified (assuming no other outstanding vertex indices are issued subsequent to the
* fence).
*/
public class NVFence {
/** Accepted by the {@code condition} parameter of SetFenceNV. */
public static final int GL_ALL_COMPLETED_NV = 0x84F2;
/** Accepted by the {@code pname} parameter of GetFenceivNV. */
public static final int
GL_FENCE_STATUS_NV = 0x84F3,
GL_FENCE_CONDITION_NV = 0x84F4;
static { GLES.initialize(); }
protected NVFence() {
throw new UnsupportedOperationException();
}
static boolean isAvailable(GLESCapabilities caps) {
return checkFunctions(
caps.glDeleteFencesNV, caps.glGenFencesNV, caps.glIsFenceNV, caps.glTestFenceNV, caps.glGetFenceivNV, caps.glFinishFenceNV, caps.glSetFenceNV
);
}
// --- [ glDeleteFencesNV ] ---
public static native void nglDeleteFencesNV(int n, long fences);
public static void glDeleteFencesNV(@NativeType("const GLuint *") IntBuffer fences) {
nglDeleteFencesNV(fences.remaining(), memAddress(fences));
}
public static void glDeleteFencesNV(@NativeType("const GLuint *") int fence) {
MemoryStack stack = stackGet(); int stackPointer = stack.getPointer();
try {
IntBuffer fences = stack.ints(fence);
nglDeleteFencesNV(1, memAddress(fences));
} finally {
stack.setPointer(stackPointer);
}
}
// --- [ glGenFencesNV ] ---
public static native void nglGenFencesNV(int n, long fences);
public static void glGenFencesNV(@NativeType("GLuint *") IntBuffer fences) {
nglGenFencesNV(fences.remaining(), memAddress(fences));
}
@NativeType("void")
public static int glGenFencesNV() {
MemoryStack stack = stackGet(); int stackPointer = stack.getPointer();
try {
IntBuffer fences = stack.callocInt(1);
nglGenFencesNV(1, memAddress(fences));
return fences.get(0);
} finally {
stack.setPointer(stackPointer);
}
}
// --- [ glIsFenceNV ] ---
@NativeType("GLboolean")
public static native boolean glIsFenceNV(@NativeType("GLuint") int fence);
// --- [ glTestFenceNV ] ---
@NativeType("GLboolean")
public static native boolean glTestFenceNV(@NativeType("GLuint") int fence);
// --- [ glGetFenceivNV ] ---
public static native void nglGetFenceivNV(int fence, int pname, long params);
public static void glGetFenceivNV(@NativeType("GLuint") int fence, @NativeType("GLenum") int pname, @NativeType("GLint *") IntBuffer params) {
if (CHECKS) {
check(params, 1);
}
nglGetFenceivNV(fence, pname, memAddress(params));
}
@NativeType("void")
public static int glGetFenceiNV(@NativeType("GLuint") int fence, @NativeType("GLenum") int pname) {
MemoryStack stack = stackGet(); int stackPointer = stack.getPointer();
try {
IntBuffer params = stack.callocInt(1);
nglGetFenceivNV(fence, pname, memAddress(params));
return params.get(0);
} finally {
stack.setPointer(stackPointer);
}
}
// --- [ glFinishFenceNV ] ---
public static native void glFinishFenceNV(@NativeType("GLuint") int fence);
// --- [ glSetFenceNV ] ---
public static native void glSetFenceNV(@NativeType("GLuint") int fence, @NativeType("GLenum") int condition);
/** Array version of: {@link #glDeleteFencesNV DeleteFencesNV} */
public static void glDeleteFencesNV(@NativeType("const GLuint *") int[] fences) {
long __functionAddress = GLES.getICD().glDeleteFencesNV;
if (CHECKS) {
check(__functionAddress);
}
callPV(__functionAddress, fences.length, fences);
}
/** Array version of: {@link #glGenFencesNV GenFencesNV} */
public static void glGenFencesNV(@NativeType("GLuint *") int[] fences) {
long __functionAddress = GLES.getICD().glGenFencesNV;
if (CHECKS) {
check(__functionAddress);
}
callPV(__functionAddress, fences.length, fences);
}
/** Array version of: {@link #glGetFenceivNV GetFenceivNV} */
public static void glGetFenceivNV(@NativeType("GLuint") int fence, @NativeType("GLenum") int pname, @NativeType("GLint *") int[] params) {
long __functionAddress = GLES.getICD().glGetFenceivNV;
if (CHECKS) {
check(__functionAddress);
check(params, 1);
}
callPV(__functionAddress, fence, pname, params);
}
}