ARBShaderImageLoadStore (LWJGL 3.2.4 SNAPSHOT

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

```
public class ARBShaderImageLoadStore
extends java.lang.Object
```
Native bindings to the ARB_shader_image_load_store extension.
This extension provides GLSL built-in functions allowing shaders to load from, store to, and perform atomic read-modify-write operations to a single level of a texture object from any shader stage. These built-in functions are named imageLoad(), imageStore(), and imageAtomic*(), respectively, and accept integer texel coordinates to identify the texel accessed. The extension adds the notion of "image units" to the OpenGL API, to which texture levels are bound for access by the GLSL built-in functions. To allow shaders to specify the image unit to access, GLSL provides a new set of data types ("image*") similar to samplers. Each image variable is assigned an integer value to identify an image unit to access, which is specified using Uniform*() APIs in a manner similar to samplers.

This extension also provides the capability to explicitly enable "early" per-fragment tests, where operations like depth and stencil testing are performed prior to fragment shader execution. In unextended OpenGL, fragment shaders never have any side effects and implementations can sometimes perform per-fragment tests and discard some fragments prior to executing the fragment shader. Since this extension allows fragment shaders to write to texture and buffer object memory using the built-in image functions, such optimizations could lead to non-deterministic results. To avoid this, implementations supporting this extension may not perform such optimizations on shaders having such side effects. However, enabling early per-fragment tests guarantees that such tests will be performed prior to fragment shader execution, and ensures that image stores and atomics will not be performed by fragment shader invocations where these per-fragment tests fail.

Finally, this extension provides both a GLSL built-in function and an OpenGL API function allowing applications some control over the ordering of image loads, stores, and atomics relative to other OpenGL pipeline operations accessing the same memory. Because the extension provides the ability to perform random accesses to texture or buffer object memory, such accesses are not easily tracked by the OpenGL driver. To avoid the need for heavy-handed synchronization at the driver level, this extension requires manual synchronization. The MemoryBarrier() OpenGL API function allows applications to specify a bitfield indicating the set of OpenGL API operations to synchronize relative to shader memory access. The memoryBarrier() GLSL built-in function provides a synchronization point within a given shader invocation to ensure that all memory accesses performed prior to the synchronization point complete prior to any started after the synchronization point.

Requires OpenGL 3.0 and GLSL 1.30. Promoted to core in OpenGL 4.2.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`GL_ALL_BARRIER_BITS` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_ATOMIC_COUNTER_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_BUFFER_UPDATE_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_COMMAND_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_ELEMENT_ARRAY_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_FRAMEBUFFER_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_IMAGE_1D` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_1D_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_2D` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_2D_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_2D_MULTISAMPLE` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_2D_MULTISAMPLE_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_2D_RECT` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_3D` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_BINDING_ACCESS` Accepted by the `target` parameter of GetIntegeri_v and GetBooleani_v.
`static int`	`GL_IMAGE_BINDING_FORMAT` Accepted by the `target` parameter of GetIntegeri_v and GetBooleani_v.
`static int`	`GL_IMAGE_BINDING_LAYER` Accepted by the `target` parameter of GetIntegeri_v and GetBooleani_v.
`static int`	`GL_IMAGE_BINDING_LAYERED` Accepted by the `target` parameter of GetIntegeri_v and GetBooleani_v.
`static int`	`GL_IMAGE_BINDING_LEVEL` Accepted by the `target` parameter of GetIntegeri_v and GetBooleani_v.
`static int`	`GL_IMAGE_BINDING_NAME` Accepted by the `target` parameter of GetIntegeri_v and GetBooleani_v.
`static int`	`GL_IMAGE_BUFFER` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_CUBE` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_CUBE_MAP_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS` Returned in the `data` parameter of GetTexParameteriv, GetTexParameterfv, GetTexParameterIiv, and GetTexParameterIuiv when `value` is IMAGE_FORMAT_COMPATIBILITY_TYPE.
`static int`	`GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE` Returned in the `data` parameter of GetTexParameteriv, GetTexParameterfv, GetTexParameterIiv, and GetTexParameterIuiv when `value` is IMAGE_FORMAT_COMPATIBILITY_TYPE.
`static int`	`GL_IMAGE_FORMAT_COMPATIBILITY_TYPE` Accepted by the `value` parameter of GetTexParameteriv, GetTexParameterfv, GetTexParameterIiv, and GetTexParameterIuiv.
`static int`	`GL_INT_IMAGE_1D` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_1D_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_2D` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_2D_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_2D_MULTISAMPLE` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_2D_RECT` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_3D` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_BUFFER` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_CUBE` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_INT_IMAGE_CUBE_MAP_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_MAX_COMBINED_IMAGE_UNIFORMS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
`static int`	`GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
`static int`	`GL_MAX_FRAGMENT_IMAGE_UNIFORMS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
`static int`	`GL_MAX_GEOMETRY_IMAGE_UNIFORMS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
`static int`	`GL_MAX_IMAGE_SAMPLES` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
`static int`	`GL_MAX_IMAGE_UNITS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
`static int`	`GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
`static int`	`GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
`static int`	`GL_MAX_VERTEX_IMAGE_UNIFORMS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
`static int`	`GL_PIXEL_BUFFER_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_SHADER_IMAGE_ACCESS_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_TEXTURE_FETCH_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_TEXTURE_UPDATE_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_TRANSFORM_FEEDBACK_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_UNIFORM_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.
`static int`	`GL_UNSIGNED_INT_IMAGE_1D` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_1D_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_2D` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_2D_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_2D_RECT` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_3D` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_BUFFER` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_CUBE` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY` Returned by the `type` parameter of GetActiveUniform.
`static int`	`GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT` Accepted by the `barriers` parameter of MemoryBarrier.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`glBindImageTexture(int unit, int texture, int level, boolean layered, int layer, int access, int format)` Binds a level of a texture to an image unit.
`static void`	`glMemoryBarrier(int barriers)` Defines a barrier ordering memory transactions.

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

Field Detail
- GL_MAX_IMAGE_UNITS
```
public static final int GL_MAX_IMAGE_UNITS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
  
  See Also:
  
  Constant Field Values
- GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS
```
public static final int GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
  
  See Also:
  
  Constant Field Values
- GL_MAX_IMAGE_SAMPLES
```
public static final int GL_MAX_IMAGE_SAMPLES
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
  
  See Also:
  
  Constant Field Values
- GL_MAX_VERTEX_IMAGE_UNIFORMS
```
public static final int GL_MAX_VERTEX_IMAGE_UNIFORMS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
  
  See Also:
  
  Constant Field Values
- GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS
```
public static final int GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
  
  See Also:
  
  Constant Field Values
- GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS
```
public static final int GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
  
  See Also:
  
  Constant Field Values
- GL_MAX_GEOMETRY_IMAGE_UNIFORMS
```
public static final int GL_MAX_GEOMETRY_IMAGE_UNIFORMS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
  
  See Also:
  
  Constant Field Values
- GL_MAX_FRAGMENT_IMAGE_UNIFORMS
```
public static final int GL_MAX_FRAGMENT_IMAGE_UNIFORMS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
  
  See Also:
  
  Constant Field Values
- GL_MAX_COMBINED_IMAGE_UNIFORMS
```
public static final int GL_MAX_COMBINED_IMAGE_UNIFORMS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, GetDoublev, and GetInteger64v.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_BINDING_NAME
```
public static final int GL_IMAGE_BINDING_NAME
```
  Accepted by the target parameter of GetIntegeri_v and GetBooleani_v.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_BINDING_LEVEL
```
public static final int GL_IMAGE_BINDING_LEVEL
```
  Accepted by the target parameter of GetIntegeri_v and GetBooleani_v.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_BINDING_LAYERED
```
public static final int GL_IMAGE_BINDING_LAYERED
```
  Accepted by the target parameter of GetIntegeri_v and GetBooleani_v.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_BINDING_LAYER
```
public static final int GL_IMAGE_BINDING_LAYER
```
  Accepted by the target parameter of GetIntegeri_v and GetBooleani_v.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_BINDING_ACCESS
```
public static final int GL_IMAGE_BINDING_ACCESS
```
  Accepted by the target parameter of GetIntegeri_v and GetBooleani_v.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_BINDING_FORMAT
```
public static final int GL_IMAGE_BINDING_FORMAT
```
  Accepted by the target parameter of GetIntegeri_v and GetBooleani_v.
  
  See Also:
  
  Constant Field Values
- GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT
```
public static final int GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_ELEMENT_ARRAY_BARRIER_BIT
```
public static final int GL_ELEMENT_ARRAY_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BARRIER_BIT
```
public static final int GL_UNIFORM_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_TEXTURE_FETCH_BARRIER_BIT
```
public static final int GL_TEXTURE_FETCH_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_SHADER_IMAGE_ACCESS_BARRIER_BIT
```
public static final int GL_SHADER_IMAGE_ACCESS_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_COMMAND_BARRIER_BIT
```
public static final int GL_COMMAND_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_PIXEL_BUFFER_BARRIER_BIT
```
public static final int GL_PIXEL_BUFFER_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_TEXTURE_UPDATE_BARRIER_BIT
```
public static final int GL_TEXTURE_UPDATE_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_BUFFER_UPDATE_BARRIER_BIT
```
public static final int GL_BUFFER_UPDATE_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_FRAMEBUFFER_BARRIER_BIT
```
public static final int GL_FRAMEBUFFER_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_TRANSFORM_FEEDBACK_BARRIER_BIT
```
public static final int GL_TRANSFORM_FEEDBACK_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_ATOMIC_COUNTER_BARRIER_BIT
```
public static final int GL_ATOMIC_COUNTER_BARRIER_BIT
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_ALL_BARRIER_BITS
```
public static final int GL_ALL_BARRIER_BITS
```
  Accepted by the barriers parameter of MemoryBarrier.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_1D
```
public static final int GL_IMAGE_1D
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_2D
```
public static final int GL_IMAGE_2D
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_3D
```
public static final int GL_IMAGE_3D
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_2D_RECT
```
public static final int GL_IMAGE_2D_RECT
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_CUBE
```
public static final int GL_IMAGE_CUBE
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_BUFFER
```
public static final int GL_IMAGE_BUFFER
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_1D_ARRAY
```
public static final int GL_IMAGE_1D_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_2D_ARRAY
```
public static final int GL_IMAGE_2D_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_CUBE_MAP_ARRAY
```
public static final int GL_IMAGE_CUBE_MAP_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_2D_MULTISAMPLE
```
public static final int GL_IMAGE_2D_MULTISAMPLE
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_2D_MULTISAMPLE_ARRAY
```
public static final int GL_IMAGE_2D_MULTISAMPLE_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_1D
```
public static final int GL_INT_IMAGE_1D
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_2D
```
public static final int GL_INT_IMAGE_2D
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_3D
```
public static final int GL_INT_IMAGE_3D
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_2D_RECT
```
public static final int GL_INT_IMAGE_2D_RECT
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_CUBE
```
public static final int GL_INT_IMAGE_CUBE
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_BUFFER
```
public static final int GL_INT_IMAGE_BUFFER
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_1D_ARRAY
```
public static final int GL_INT_IMAGE_1D_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_2D_ARRAY
```
public static final int GL_INT_IMAGE_2D_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_CUBE_MAP_ARRAY
```
public static final int GL_INT_IMAGE_CUBE_MAP_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_2D_MULTISAMPLE
```
public static final int GL_INT_IMAGE_2D_MULTISAMPLE
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY
```
public static final int GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_1D
```
public static final int GL_UNSIGNED_INT_IMAGE_1D
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_2D
```
public static final int GL_UNSIGNED_INT_IMAGE_2D
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_3D
```
public static final int GL_UNSIGNED_INT_IMAGE_3D
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_2D_RECT
```
public static final int GL_UNSIGNED_INT_IMAGE_2D_RECT
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_CUBE
```
public static final int GL_UNSIGNED_INT_IMAGE_CUBE
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_BUFFER
```
public static final int GL_UNSIGNED_INT_IMAGE_BUFFER
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_1D_ARRAY
```
public static final int GL_UNSIGNED_INT_IMAGE_1D_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_2D_ARRAY
```
public static final int GL_UNSIGNED_INT_IMAGE_2D_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY
```
public static final int GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE
```
public static final int GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY
```
public static final int GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY
```
  Returned by the type parameter of GetActiveUniform.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
```
public static final int GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
```
  Accepted by the value parameter of GetTexParameteriv, GetTexParameterfv, GetTexParameterIiv, and GetTexParameterIuiv.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE
```
public static final int GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE
```
  Returned in the data parameter of GetTexParameteriv, GetTexParameterfv, GetTexParameterIiv, and GetTexParameterIuiv when value is IMAGE_FORMAT_COMPATIBILITY_TYPE.
  
  See Also:
  
  Constant Field Values
- GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS
```
public static final int GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS
```
  Returned in the data parameter of GetTexParameteriv, GetTexParameterfv, GetTexParameterIiv, and GetTexParameterIuiv when value is IMAGE_FORMAT_COMPATIBILITY_TYPE.
  
  See Also:
  
  Constant Field Values

Method Detail

glBindImageTexture
```
public static void glBindImageTexture(int unit,
                                      int texture,
                                      int level,
                                      boolean layered,
                                      int layer,
                                      int access,
                                      int format)
```
Binds a level of a texture to an image unit.

Parameters:

unit - the index of the image unit to which to bind the texture

texture - the name of the texture to bind to the image unit

level - the level of the texture that is to be bound

layered - whether a layered texture binding is to be established

layer - if layered is false, specifies the layer of texture to be bound to the image unit. Ignored otherwise.

access - a token indicating the type of access that will be performed on the image

format - the format that the elements of the image will be treated as for the purposes of formatted stores

glMemoryBarrier

public static void glMemoryBarrier(int barriers)

Defines a barrier ordering memory transactions.

Parameters:

barriers - the barriers to insert (bitwise combination). One or more of:

`VERTEX_ATTRIB_ARRAY_BARRIER_BIT`	`ELEMENT_ARRAY_BARRIER_BIT`	`UNIFORM_BARRIER_BIT`
`TEXTURE_FETCH_BARRIER_BIT`	`SHADER_IMAGE_ACCESS_BARRIER_BIT`	`COMMAND_BARRIER_BIT`
`PIXEL_BUFFER_BARRIER_BIT`	`TEXTURE_UPDATE_BARRIER_BIT`	`BUFFER_UPDATE_BARRIER_BIT`
`FRAMEBUFFER_BARRIER_BIT`	`TRANSFORM_FEEDBACK_BARRIER_BIT`	`ATOMIC_COUNTER_BARRIER_BIT`
`ALL_BARRIER_BITS`	`SHADER_STORAGE_BARRIER_BIT`

Class ARBShaderImageLoadStore

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GL_MAX_IMAGE_UNITS

GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS

GL_MAX_IMAGE_SAMPLES

GL_MAX_VERTEX_IMAGE_UNIFORMS

GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS

GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS

GL_MAX_GEOMETRY_IMAGE_UNIFORMS

GL_MAX_FRAGMENT_IMAGE_UNIFORMS

GL_MAX_COMBINED_IMAGE_UNIFORMS

GL_IMAGE_BINDING_NAME

GL_IMAGE_BINDING_LEVEL

GL_IMAGE_BINDING_LAYERED

GL_IMAGE_BINDING_LAYER

GL_IMAGE_BINDING_ACCESS

GL_IMAGE_BINDING_FORMAT

GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT

GL_ELEMENT_ARRAY_BARRIER_BIT

GL_UNIFORM_BARRIER_BIT

GL_TEXTURE_FETCH_BARRIER_BIT

GL_SHADER_IMAGE_ACCESS_BARRIER_BIT

GL_COMMAND_BARRIER_BIT

GL_PIXEL_BUFFER_BARRIER_BIT

GL_TEXTURE_UPDATE_BARRIER_BIT

GL_BUFFER_UPDATE_BARRIER_BIT

GL_FRAMEBUFFER_BARRIER_BIT

GL_TRANSFORM_FEEDBACK_BARRIER_BIT

GL_ATOMIC_COUNTER_BARRIER_BIT

GL_ALL_BARRIER_BITS

GL_IMAGE_1D

GL_IMAGE_2D

GL_IMAGE_3D

GL_IMAGE_2D_RECT

GL_IMAGE_CUBE

GL_IMAGE_BUFFER

GL_IMAGE_1D_ARRAY

GL_IMAGE_2D_ARRAY

GL_IMAGE_CUBE_MAP_ARRAY

GL_IMAGE_2D_MULTISAMPLE

GL_IMAGE_2D_MULTISAMPLE_ARRAY

GL_INT_IMAGE_1D

GL_INT_IMAGE_2D

GL_INT_IMAGE_3D

GL_INT_IMAGE_2D_RECT

GL_INT_IMAGE_CUBE

GL_INT_IMAGE_BUFFER

GL_INT_IMAGE_1D_ARRAY

GL_INT_IMAGE_2D_ARRAY

GL_INT_IMAGE_CUBE_MAP_ARRAY

GL_INT_IMAGE_2D_MULTISAMPLE

GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY

GL_UNSIGNED_INT_IMAGE_1D

GL_UNSIGNED_INT_IMAGE_2D

GL_UNSIGNED_INT_IMAGE_3D

GL_UNSIGNED_INT_IMAGE_2D_RECT

GL_UNSIGNED_INT_IMAGE_CUBE

GL_UNSIGNED_INT_IMAGE_BUFFER

GL_UNSIGNED_INT_IMAGE_1D_ARRAY

GL_UNSIGNED_INT_IMAGE_2D_ARRAY

GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY

GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE

GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY

GL_IMAGE_FORMAT_COMPATIBILITY_TYPE

GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE

GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS

Method Detail

glBindImageTexture

glMemoryBarrier