EXTSemaphore (LWJGL 3.2.4 SNAPSHOT

java.lang.Object
- org.lwjgl.opengl.EXTSemaphore

```
public class EXTSemaphore
extends java.lang.Object
```
Native bindings to the EXT_semaphore extension.
The Vulkan API introduces the concept of explicit memory objects and reusable synchronization objects. This extension brings those concepts to the OpenGL API via two new object types:
- Memory objects
- Semaphores
Rather than allocating memory as a response to object allocation, memory allocation and binding are two separate operations in Vulkan. This extension allows an OpenGL application to import a Vulkan memory object, and to bind textures and/or buffer objects to it.

No methods to import memory objects are defined here. Separate platform-specific extensions are defined for this purpose.

Semaphores are synchronization primitives that can be waited on and signaled only by the GPU, or in GL terms, in the GL server. They are similar in concept to GL's "sync" objects and EGL's "EGLSync" objects, but different enough that compatibilities between the two are difficult to derive.

Rather than attempt to map Vulkan semaphores on to GL/EGL sync objects to achieve interoperability, this extension introduces a new object, GL semaphores, that map directly to the semantics of Vulkan semaphores. To achieve full image and buffer memory coherence with a Vulkan driver, the commands that manipulate semaphores also allow external usage information to be imported and exported.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`GL_DEVICE_UUID_EXT` Accepted by the `pname` parameter of GetBooleanv, GetDoublev, GetFloatv, GetIntegerv, GetInteger64v, `GetUnsignedBytevEXT`, and the `target` parameter of GetBooleani_v, GetIntegeri_v,GetFloati_v, GetDoublei_v, GetInteger64i_v, and `GetUnsignedBytei_vEXT`.
`static int`	`GL_DRIVER_UUID_EXT` Accepted by the `pname` parameter of GetBooleanv, GetDoublev, GetFloatv, GetIntegerv, GetInteger64v, `GetUnsignedBytevEXT`, and the `target` parameter of GetBooleani_v, GetIntegeri_v,GetFloati_v, GetDoublei_v, GetInteger64i_v, and `GetUnsignedBytei_vEXT`.
`static int`	`GL_LAYOUT_COLOR_ATTACHMENT_EXT` Accepted by the `dstLayouts` parameter of `SignalSemaphoreEXT` and the `srcLayouts` parameter of `WaitSemaphoreEXT`.
`static int`	`GL_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_EXT` Accepted by the `dstLayouts` parameter of `SignalSemaphoreEXT` and the `srcLayouts` parameter of `WaitSemaphoreEXT`.
`static int`	`GL_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_EXT` Accepted by the `dstLayouts` parameter of `SignalSemaphoreEXT` and the `srcLayouts` parameter of `WaitSemaphoreEXT`.
`static int`	`GL_LAYOUT_DEPTH_STENCIL_ATTACHMENT_EXT` Accepted by the `dstLayouts` parameter of `SignalSemaphoreEXT` and the `srcLayouts` parameter of `WaitSemaphoreEXT`.
`static int`	`GL_LAYOUT_DEPTH_STENCIL_READ_ONLY_EXT` Accepted by the `dstLayouts` parameter of `SignalSemaphoreEXT` and the `srcLayouts` parameter of `WaitSemaphoreEXT`.
`static int`	`GL_LAYOUT_GENERAL_EXT` Accepted by the `dstLayouts` parameter of `SignalSemaphoreEXT` and the `srcLayouts` parameter of `WaitSemaphoreEXT`.
`static int`	`GL_LAYOUT_SHADER_READ_ONLY_EXT` Accepted by the `dstLayouts` parameter of `SignalSemaphoreEXT` and the `srcLayouts` parameter of `WaitSemaphoreEXT`.
`static int`	`GL_LAYOUT_TRANSFER_DST_EXT` Accepted by the `dstLayouts` parameter of `SignalSemaphoreEXT` and the `srcLayouts` parameter of `WaitSemaphoreEXT`.
`static int`	`GL_LAYOUT_TRANSFER_SRC_EXT` Accepted by the `dstLayouts` parameter of `SignalSemaphoreEXT` and the `srcLayouts` parameter of `WaitSemaphoreEXT`.
`static int`	`GL_NUM_DEVICE_UUIDS_EXT` Accepted by the `pname` parameter of GetBooleanv, GetDoublev, GetFloatv, GetIntegerv, GetInteger64v, `GetUnsignedBytevEXT`, and the `target` parameter of GetBooleani_v, GetIntegeri_v,GetFloati_v, GetDoublei_v, GetInteger64i_v, and `GetUnsignedBytei_vEXT`.
`static int`	`GL_UUID_SIZE_EXT` Constant values.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`glDeleteSemaphoresEXT(int semaphore)`
`static void`	`glDeleteSemaphoresEXT(int[] semaphores)` Array version of: `DeleteSemaphoresEXT`
`static void`	`glDeleteSemaphoresEXT(java.nio.IntBuffer semaphores)`
`static int`	`glGenSemaphoresEXT()`
`static void`	`glGenSemaphoresEXT(int[] semaphores)` Array version of: `GenSemaphoresEXT`
`static void`	`glGenSemaphoresEXT(java.nio.IntBuffer semaphores)`
`static long`	`glGetSemaphoreParameterui64EXT(int semaphore, int pname)`
`static void`	`glGetSemaphoreParameterui64vEXT(int semaphore, int pname, long[] params)` Array version of: `GetSemaphoreParameterui64vEXT`
`static void`	`glGetSemaphoreParameterui64vEXT(int semaphore, int pname, java.nio.LongBuffer params)`
`static void`	`glGetUnsignedBytei_vEXT(int target, int index, java.nio.ByteBuffer data)`
`static void`	`glGetUnsignedBytevEXT(int pname, java.nio.ByteBuffer data)`
`static boolean`	`glIsSemaphoreEXT(int semaphore)`
`static void`	`glSemaphoreParameterui64EXT(int semaphore, int pname, long param)`
`static void`	`glSemaphoreParameterui64vEXT(int semaphore, int pname, long[] params)` Array version of: `SemaphoreParameterui64vEXT`
`static void`	`glSemaphoreParameterui64vEXT(int semaphore, int pname, java.nio.LongBuffer params)`
`static void`	`glSignalSemaphoreEXT(int semaphore, int[] buffers, int[] textures, int[] dstLayouts)` Array version of: `SignalSemaphoreEXT`
`static void`	`glSignalSemaphoreEXT(int semaphore, java.nio.IntBuffer buffers, java.nio.IntBuffer textures, java.nio.IntBuffer dstLayouts)`
`static void`	`glWaitSemaphoreEXT(int semaphore, int[] buffers, int[] textures, int[] srcLayouts)` Array version of: `WaitSemaphoreEXT`
`static void`	`glWaitSemaphoreEXT(int semaphore, java.nio.IntBuffer buffers, java.nio.IntBuffer textures, java.nio.IntBuffer srcLayouts)`
`static void`	`nglDeleteSemaphoresEXT(int n, long semaphores)`
`static void`	`nglGenSemaphoresEXT(int n, long semaphores)`
`static void`	`nglGetSemaphoreParameterui64vEXT(int semaphore, int pname, long params)`
`static void`	`nglGetUnsignedBytei_vEXT(int target, int index, long data)`
`static void`	`nglGetUnsignedBytevEXT(int pname, long data)`
`static void`	`nglSemaphoreParameterui64vEXT(int semaphore, int pname, long params)`
`static void`	`nglSignalSemaphoreEXT(int semaphore, int numBufferBarriers, long buffers, int numTextureBarriers, long textures, long dstLayouts)`
`static void`	`nglWaitSemaphoreEXT(int semaphore, int numBufferBarriers, long buffers, int numTextureBarriers, long textures, long srcLayouts)`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- GL_NUM_DEVICE_UUIDS_EXT
```
public static final int GL_NUM_DEVICE_UUIDS_EXT
```
  Accepted by the pname parameter of GetBooleanv, GetDoublev, GetFloatv, GetIntegerv, GetInteger64v, GetUnsignedBytevEXT, and the target parameter of GetBooleani_v, GetIntegeri_v,GetFloati_v, GetDoublei_v, GetInteger64i_v, and GetUnsignedBytei_vEXT.
  
  See Also:
  
  Constant Field Values
- GL_DEVICE_UUID_EXT
```
public static final int GL_DEVICE_UUID_EXT
```
  Accepted by the pname parameter of GetBooleanv, GetDoublev, GetFloatv, GetIntegerv, GetInteger64v, GetUnsignedBytevEXT, and the target parameter of GetBooleani_v, GetIntegeri_v,GetFloati_v, GetDoublei_v, GetInteger64i_v, and GetUnsignedBytei_vEXT.
  
  See Also:
  
  Constant Field Values
- GL_DRIVER_UUID_EXT
```
public static final int GL_DRIVER_UUID_EXT
```
  Accepted by the pname parameter of GetBooleanv, GetDoublev, GetFloatv, GetIntegerv, GetInteger64v, GetUnsignedBytevEXT, and the target parameter of GetBooleani_v, GetIntegeri_v,GetFloati_v, GetDoublei_v, GetInteger64i_v, and GetUnsignedBytei_vEXT.
  
  See Also:
  
  Constant Field Values
- GL_UUID_SIZE_EXT
```
public static final int GL_UUID_SIZE_EXT
```
  Constant values.
  
  See Also:
  
  Constant Field Values
- GL_LAYOUT_GENERAL_EXT
```
public static final int GL_LAYOUT_GENERAL_EXT
```
  Accepted by the dstLayouts parameter of SignalSemaphoreEXT and the srcLayouts parameter of WaitSemaphoreEXT.
  
  See Also:
  
  Constant Field Values
- GL_LAYOUT_COLOR_ATTACHMENT_EXT
```
public static final int GL_LAYOUT_COLOR_ATTACHMENT_EXT
```
  Accepted by the dstLayouts parameter of SignalSemaphoreEXT and the srcLayouts parameter of WaitSemaphoreEXT.
  
  See Also:
  
  Constant Field Values
- GL_LAYOUT_DEPTH_STENCIL_ATTACHMENT_EXT
```
public static final int GL_LAYOUT_DEPTH_STENCIL_ATTACHMENT_EXT
```
  Accepted by the dstLayouts parameter of SignalSemaphoreEXT and the srcLayouts parameter of WaitSemaphoreEXT.
  
  See Also:
  
  Constant Field Values
- GL_LAYOUT_DEPTH_STENCIL_READ_ONLY_EXT
```
public static final int GL_LAYOUT_DEPTH_STENCIL_READ_ONLY_EXT
```
  Accepted by the dstLayouts parameter of SignalSemaphoreEXT and the srcLayouts parameter of WaitSemaphoreEXT.
  
  See Also:
  
  Constant Field Values
- GL_LAYOUT_SHADER_READ_ONLY_EXT
```
public static final int GL_LAYOUT_SHADER_READ_ONLY_EXT
```
  Accepted by the dstLayouts parameter of SignalSemaphoreEXT and the srcLayouts parameter of WaitSemaphoreEXT.
  
  See Also:
  
  Constant Field Values
- GL_LAYOUT_TRANSFER_SRC_EXT
```
public static final int GL_LAYOUT_TRANSFER_SRC_EXT
```
  Accepted by the dstLayouts parameter of SignalSemaphoreEXT and the srcLayouts parameter of WaitSemaphoreEXT.
  
  See Also:
  
  Constant Field Values
- GL_LAYOUT_TRANSFER_DST_EXT
```
public static final int GL_LAYOUT_TRANSFER_DST_EXT
```
  Accepted by the dstLayouts parameter of SignalSemaphoreEXT and the srcLayouts parameter of WaitSemaphoreEXT.
  
  See Also:
  
  Constant Field Values
- GL_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_EXT
```
public static final int GL_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_EXT
```
  Accepted by the dstLayouts parameter of SignalSemaphoreEXT and the srcLayouts parameter of WaitSemaphoreEXT.
  
  See Also:
  
  Constant Field Values
- GL_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_EXT
```
public static final int GL_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_EXT
```
  Accepted by the dstLayouts parameter of SignalSemaphoreEXT and the srcLayouts parameter of WaitSemaphoreEXT.
  
  See Also:
  
  Constant Field Values

Method Detail

nglGetUnsignedBytevEXT

public static void nglGetUnsignedBytevEXT(int pname,
                                          long data)

glGetUnsignedBytevEXT

public static void glGetUnsignedBytevEXT(int pname,
                                         java.nio.ByteBuffer data)

nglGetUnsignedBytei_vEXT

public static void nglGetUnsignedBytei_vEXT(int target,
                                            int index,
                                            long data)

glGetUnsignedBytei_vEXT

public static void glGetUnsignedBytei_vEXT(int target,
                                           int index,
                                           java.nio.ByteBuffer data)

nglGenSemaphoresEXT

public static void nglGenSemaphoresEXT(int n,
                                       long semaphores)

glGenSemaphoresEXT

public static void glGenSemaphoresEXT(java.nio.IntBuffer semaphores)

glGenSemaphoresEXT

public static int glGenSemaphoresEXT()

nglDeleteSemaphoresEXT

public static void nglDeleteSemaphoresEXT(int n,
                                          long semaphores)

glDeleteSemaphoresEXT

public static void glDeleteSemaphoresEXT(java.nio.IntBuffer semaphores)

glDeleteSemaphoresEXT

public static void glDeleteSemaphoresEXT(int semaphore)

glIsSemaphoreEXT

public static boolean glIsSemaphoreEXT(int semaphore)

nglSemaphoreParameterui64vEXT

public static void nglSemaphoreParameterui64vEXT(int semaphore,
                                                 int pname,
                                                 long params)

glSemaphoreParameterui64vEXT

public static void glSemaphoreParameterui64vEXT(int semaphore,
                                                int pname,
                                                java.nio.LongBuffer params)

glSemaphoreParameterui64EXT

public static void glSemaphoreParameterui64EXT(int semaphore,
                                               int pname,
                                               long param)

nglGetSemaphoreParameterui64vEXT

public static void nglGetSemaphoreParameterui64vEXT(int semaphore,
                                                    int pname,
                                                    long params)

glGetSemaphoreParameterui64vEXT

public static void glGetSemaphoreParameterui64vEXT(int semaphore,
                                                   int pname,
                                                   java.nio.LongBuffer params)

glGetSemaphoreParameterui64EXT

public static long glGetSemaphoreParameterui64EXT(int semaphore,
                                                  int pname)

nglWaitSemaphoreEXT

public static void nglWaitSemaphoreEXT(int semaphore,
                                       int numBufferBarriers,
                                       long buffers,
                                       int numTextureBarriers,
                                       long textures,
                                       long srcLayouts)

glWaitSemaphoreEXT

public static void glWaitSemaphoreEXT(int semaphore,
                                      java.nio.IntBuffer buffers,
                                      java.nio.IntBuffer textures,
                                      java.nio.IntBuffer srcLayouts)

nglSignalSemaphoreEXT

public static void nglSignalSemaphoreEXT(int semaphore,
                                         int numBufferBarriers,
                                         long buffers,
                                         int numTextureBarriers,
                                         long textures,
                                         long dstLayouts)

glSignalSemaphoreEXT

public static void glSignalSemaphoreEXT(int semaphore,
                                        java.nio.IntBuffer buffers,
                                        java.nio.IntBuffer textures,
                                        java.nio.IntBuffer dstLayouts)

glGenSemaphoresEXT

public static void glGenSemaphoresEXT(int[] semaphores)

Array version of: GenSemaphoresEXT

glDeleteSemaphoresEXT

public static void glDeleteSemaphoresEXT(int[] semaphores)

Array version of: DeleteSemaphoresEXT

glSemaphoreParameterui64vEXT

public static void glSemaphoreParameterui64vEXT(int semaphore,
                                                int pname,
                                                long[] params)

Array version of: SemaphoreParameterui64vEXT

glGetSemaphoreParameterui64vEXT

public static void glGetSemaphoreParameterui64vEXT(int semaphore,
                                                   int pname,
                                                   long[] params)

Array version of: GetSemaphoreParameterui64vEXT

glWaitSemaphoreEXT

public static void glWaitSemaphoreEXT(int semaphore,
                                      int[] buffers,
                                      int[] textures,
                                      int[] srcLayouts)

Array version of: WaitSemaphoreEXT

glSignalSemaphoreEXT

public static void glSignalSemaphoreEXT(int semaphore,
                                        int[] buffers,
                                        int[] textures,
                                        int[] dstLayouts)

Array version of: SignalSemaphoreEXT

Class EXTSemaphore

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GL_NUM_DEVICE_UUIDS_EXT

GL_DEVICE_UUID_EXT

GL_DRIVER_UUID_EXT

GL_UUID_SIZE_EXT

GL_LAYOUT_GENERAL_EXT

GL_LAYOUT_COLOR_ATTACHMENT_EXT

GL_LAYOUT_DEPTH_STENCIL_ATTACHMENT_EXT

GL_LAYOUT_DEPTH_STENCIL_READ_ONLY_EXT

GL_LAYOUT_SHADER_READ_ONLY_EXT

GL_LAYOUT_TRANSFER_SRC_EXT

GL_LAYOUT_TRANSFER_DST_EXT

GL_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_EXT

GL_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_EXT

Method Detail

nglGetUnsignedBytevEXT

glGetUnsignedBytevEXT

nglGetUnsignedBytei_vEXT

glGetUnsignedBytei_vEXT

nglGenSemaphoresEXT

glGenSemaphoresEXT

glGenSemaphoresEXT

nglDeleteSemaphoresEXT

glDeleteSemaphoresEXT

glDeleteSemaphoresEXT

glIsSemaphoreEXT

nglSemaphoreParameterui64vEXT

glSemaphoreParameterui64vEXT

glSemaphoreParameterui64EXT

nglGetSemaphoreParameterui64vEXT

glGetSemaphoreParameterui64vEXT

glGetSemaphoreParameterui64EXT

nglWaitSemaphoreEXT

glWaitSemaphoreEXT

nglSignalSemaphoreEXT

glSignalSemaphoreEXT

glGenSemaphoresEXT

glDeleteSemaphoresEXT

glSemaphoreParameterui64vEXT

glGetSemaphoreParameterui64vEXT

glWaitSemaphoreEXT

glSignalSemaphoreEXT