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

```
public class ARBClearBufferObject
extends java.lang.Object
```
Native bindings to the ARB_clear_buffer_object extension.
Buffer objects are fundamental to the operation of OpenGL. Buffers are used as a source of data for vertices and indices, read through buffer textures in shaders, used to transfer texture and image data into and out of textures and framebuffers, and may be written to by operations such as transform feedback. OpenGL contains mechanisms to copy sections of buffers from one to another, but it has no mechanism to initialize the content of a buffer to a known value. In effect, it has memcpy, but not memset.

This extension adds such a mechanism and has several use cases. Examples include clearing a pixel unpack buffer before transferring data to a texture or resetting buffer data to a known value before sparse updates through shader image stores or transform feedback.

Requires OpenGL 1.5. Promoted to core in OpenGL 4.3.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`glClearBufferData(int target, int internalformat, int format, int type, java.nio.ByteBuffer data)` Fills a buffer object's data store with a fixed value.
`static void`	`glClearBufferData(int target, int internalformat, int format, int type, float[] data)` Array version of: `ClearBufferData`
`static void`	`glClearBufferData(int target, int internalformat, int format, int type, java.nio.FloatBuffer data)` Fills a buffer object's data store with a fixed value.
`static void`	`glClearBufferData(int target, int internalformat, int format, int type, int[] data)` Array version of: `ClearBufferData`
`static void`	`glClearBufferData(int target, int internalformat, int format, int type, java.nio.IntBuffer data)` Fills a buffer object's data store with a fixed value.
`static void`	`glClearBufferData(int target, int internalformat, int format, int type, short[] data)` Array version of: `ClearBufferData`
`static void`	`glClearBufferData(int target, int internalformat, int format, int type, java.nio.ShortBuffer data)` Fills a buffer object's data store with a fixed value.
`static void`	`glClearBufferSubData(int target, int internalformat, long offset, long size, int format, int type, java.nio.ByteBuffer data)` Fills all or part of buffer object's data store with a fixed value.
`static void`	`glClearBufferSubData(int target, int internalformat, long offset, long size, int format, int type, float[] data)` Array version of: `ClearBufferSubData`
`static void`	`glClearBufferSubData(int target, int internalformat, long offset, long size, int format, int type, java.nio.FloatBuffer data)` Fills all or part of buffer object's data store with a fixed value.
`static void`	`glClearBufferSubData(int target, int internalformat, long offset, long size, int format, int type, int[] data)` Array version of: `ClearBufferSubData`
`static void`	`glClearBufferSubData(int target, int internalformat, long offset, long size, int format, int type, java.nio.IntBuffer data)` Fills all or part of buffer object's data store with a fixed value.
`static void`	`glClearBufferSubData(int target, int internalformat, long offset, long size, int format, int type, short[] data)` Array version of: `ClearBufferSubData`
`static void`	`glClearBufferSubData(int target, int internalformat, long offset, long size, int format, int type, java.nio.ShortBuffer data)` Fills all or part of buffer object's data store with a fixed value.
`static void`	`glClearNamedBufferDataEXT(int buffer, int internalformat, int format, int type, java.nio.ByteBuffer data)` DSA version of `ClearBufferData`.
`static void`	`glClearNamedBufferDataEXT(int buffer, int internalformat, int format, int type, float[] data)` Array version of: `ClearNamedBufferDataEXT`
`static void`	`glClearNamedBufferDataEXT(int buffer, int internalformat, int format, int type, java.nio.FloatBuffer data)` DSA version of `ClearBufferData`.
`static void`	`glClearNamedBufferDataEXT(int buffer, int internalformat, int format, int type, int[] data)` Array version of: `ClearNamedBufferDataEXT`
`static void`	`glClearNamedBufferDataEXT(int buffer, int internalformat, int format, int type, java.nio.IntBuffer data)` DSA version of `ClearBufferData`.
`static void`	`glClearNamedBufferDataEXT(int buffer, int internalformat, int format, int type, short[] data)` Array version of: `ClearNamedBufferDataEXT`
`static void`	`glClearNamedBufferDataEXT(int buffer, int internalformat, int format, int type, java.nio.ShortBuffer data)` DSA version of `ClearBufferData`.
`static void`	`glClearNamedBufferSubDataEXT(int buffer, int internalformat, long offset, long size, int format, int type, java.nio.ByteBuffer data)` DSA version of `ClearBufferSubData`.
`static void`	`glClearNamedBufferSubDataEXT(int buffer, int internalformat, long offset, long size, int format, int type, float[] data)` Array version of: `ClearNamedBufferSubDataEXT`
`static void`	`glClearNamedBufferSubDataEXT(int buffer, int internalformat, long offset, long size, int format, int type, java.nio.FloatBuffer data)` DSA version of `ClearBufferSubData`.
`static void`	`glClearNamedBufferSubDataEXT(int buffer, int internalformat, long offset, long size, int format, int type, int[] data)` Array version of: `ClearNamedBufferSubDataEXT`
`static void`	`glClearNamedBufferSubDataEXT(int buffer, int internalformat, long offset, long size, int format, int type, java.nio.IntBuffer data)` DSA version of `ClearBufferSubData`.
`static void`	`glClearNamedBufferSubDataEXT(int buffer, int internalformat, long offset, long size, int format, int type, short[] data)` Array version of: `ClearNamedBufferSubDataEXT`
`static void`	`glClearNamedBufferSubDataEXT(int buffer, int internalformat, long offset, long size, int format, int type, java.nio.ShortBuffer data)` DSA version of `ClearBufferSubData`.

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

Method Detail

glClearBufferData

public static void glClearBufferData(int target,
                                     int internalformat,
                                     int format,
                                     int type,
                                     java.nio.ByteBuffer data)

public static void glClearBufferData(int target,
                                     int internalformat,
                                     int format,
                                     int type,
                                     java.nio.ShortBuffer data)

public static void glClearBufferData(int target,
                                     int internalformat,
                                     int format,
                                     int type,
                                     java.nio.IntBuffer data)

public static void glClearBufferData(int target,
                                     int internalformat,
                                     int format,
                                     int type,
                                     java.nio.FloatBuffer data)

Fills a buffer object's data store with a fixed value.

Parameters:

target - the target of the operation. One of:

`ARRAY_BUFFER`	`ELEMENT_ARRAY_BUFFER`	`PIXEL_PACK_BUFFER`	`PIXEL_UNPACK_BUFFER`
`TRANSFORM_FEEDBACK_BUFFER`	`UNIFORM_BUFFER`	`TEXTURE_BUFFER`	`COPY_READ_BUFFER`
`COPY_WRITE_BUFFER`	`DRAW_INDIRECT_BUFFER`	`ATOMIC_COUNTER_BUFFER`	`DISPATCH_INDIRECT_BUFFER`
`SHADER_STORAGE_BUFFER`	`PARAMETER_BUFFER_ARB`

internalformat - the internal format with which the data will be stored in the buffer object

format - the format of the data in memory addressed by data. One of:

`STENCIL_INDEX`	`DEPTH_COMPONENT`	`DEPTH_STENCIL`	`RED`	`GREEN`	`BLUE`	`ALPHA`	`RG`
`RGB`	`RGBA`	`BGR`	`BGRA`	`LUMINANCE`	`LUMINANCE_ALPHA`	`RED_INTEGER`	`GREEN_INTEGER`
`BLUE_INTEGER`	`ALPHA_INTEGER`	`RG_INTEGER`	`RGB_INTEGER`	`RGBA_INTEGER`	`BGR_INTEGER`	`BGRA_INTEGER`

type - the type of the data in memory addressed by data. One of:

`UNSIGNED_BYTE`	`BYTE`	`UNSIGNED_SHORT`	`SHORT`
`UNSIGNED_INT`	`INT`	`HALF_FLOAT`	`FLOAT`
`UNSIGNED_BYTE_3_3_2`	`UNSIGNED_BYTE_2_3_3_REV`	`UNSIGNED_SHORT_5_6_5`	`UNSIGNED_SHORT_5_6_5_REV`
`UNSIGNED_SHORT_4_4_4_4`	`UNSIGNED_SHORT_4_4_4_4_REV`	`UNSIGNED_SHORT_5_5_5_1`	`UNSIGNED_SHORT_1_5_5_5_REV`
`UNSIGNED_INT_8_8_8_8`	`UNSIGNED_INT_8_8_8_8_REV`	`UNSIGNED_INT_10_10_10_2`	`UNSIGNED_INT_2_10_10_10_REV`
`UNSIGNED_INT_24_8`	`UNSIGNED_INT_10F_11F_11F_REV`	`UNSIGNED_INT_5_9_9_9_REV`	`FLOAT_32_UNSIGNED_INT_24_8_REV`
`BITMAP`

data - the buffer containing the data to be used as the source of the constant fill value. The elements of data are converted by the GL into the format specified by internalformat, and then used to fill the specified range of the destination buffer. If data is NULL, then it is ignored and the sub-range of the buffer is filled with zeros.

glClearBufferSubData

public static void glClearBufferSubData(int target,
                                        int internalformat,
                                        long offset,
                                        long size,
                                        int format,
                                        int type,
                                        java.nio.ByteBuffer data)

public static void glClearBufferSubData(int target,
                                        int internalformat,
                                        long offset,
                                        long size,
                                        int format,
                                        int type,
                                        java.nio.ShortBuffer data)

public static void glClearBufferSubData(int target,
                                        int internalformat,
                                        long offset,
                                        long size,
                                        int format,
                                        int type,
                                        java.nio.IntBuffer data)

public static void glClearBufferSubData(int target,
                                        int internalformat,
                                        long offset,
                                        long size,
                                        int format,
                                        int type,
                                        java.nio.FloatBuffer data)

Fills all or part of buffer object's data store with a fixed value.

Parameters:

target - the target of the operation. One of:

`ARRAY_BUFFER`	`ELEMENT_ARRAY_BUFFER`	`PIXEL_PACK_BUFFER`	`PIXEL_UNPACK_BUFFER`
`TRANSFORM_FEEDBACK_BUFFER`	`UNIFORM_BUFFER`	`TEXTURE_BUFFER`	`COPY_READ_BUFFER`
`COPY_WRITE_BUFFER`	`DRAW_INDIRECT_BUFFER`	`ATOMIC_COUNTER_BUFFER`	`DISPATCH_INDIRECT_BUFFER`
`SHADER_STORAGE_BUFFER`	`PARAMETER_BUFFER_ARB`

internalformat - the internal format with which the data will be stored in the buffer object

offset - the offset, in basic machine units into the buffer object's data store at which to start filling

size - the size, in basic machine units of the range of the data store to fill

format - the format of the data in memory addressed by data. One of:

`STENCIL_INDEX`	`DEPTH_COMPONENT`	`DEPTH_STENCIL`	`RED`	`GREEN`	`BLUE`	`ALPHA`	`RG`
`RGB`	`RGBA`	`BGR`	`BGRA`	`LUMINANCE`	`LUMINANCE_ALPHA`	`RED_INTEGER`	`GREEN_INTEGER`
`BLUE_INTEGER`	`ALPHA_INTEGER`	`RG_INTEGER`	`RGB_INTEGER`	`RGBA_INTEGER`	`BGR_INTEGER`	`BGRA_INTEGER`

type - the type of the data in memory addressed by data. One of:

`UNSIGNED_BYTE`	`BYTE`	`UNSIGNED_SHORT`	`SHORT`
`UNSIGNED_INT`	`INT`	`HALF_FLOAT`	`FLOAT`
`UNSIGNED_BYTE_3_3_2`	`UNSIGNED_BYTE_2_3_3_REV`	`UNSIGNED_SHORT_5_6_5`	`UNSIGNED_SHORT_5_6_5_REV`
`UNSIGNED_SHORT_4_4_4_4`	`UNSIGNED_SHORT_4_4_4_4_REV`	`UNSIGNED_SHORT_5_5_5_1`	`UNSIGNED_SHORT_1_5_5_5_REV`
`UNSIGNED_INT_8_8_8_8`	`UNSIGNED_INT_8_8_8_8_REV`	`UNSIGNED_INT_10_10_10_2`	`UNSIGNED_INT_2_10_10_10_REV`
`UNSIGNED_INT_24_8`	`UNSIGNED_INT_10F_11F_11F_REV`	`UNSIGNED_INT_5_9_9_9_REV`	`FLOAT_32_UNSIGNED_INT_24_8_REV`
`BITMAP`

data - the buffer containing the data to be used as the source of the constant fill value. The elements of data are converted by the GL into the format specified by internalformat, and then used to fill the specified range of the destination buffer. If data is NULL, then it is ignored and the sub-range of the buffer is filled with zeros.

glClearNamedBufferDataEXT

public static void glClearNamedBufferDataEXT(int buffer,
                                             int internalformat,
                                             int format,
                                             int type,
                                             java.nio.ByteBuffer data)

public static void glClearNamedBufferDataEXT(int buffer,
                                             int internalformat,
                                             int format,
                                             int type,
                                             java.nio.ShortBuffer data)

public static void glClearNamedBufferDataEXT(int buffer,
                                             int internalformat,
                                             int format,
                                             int type,
                                             java.nio.IntBuffer data)

public static void glClearNamedBufferDataEXT(int buffer,
                                             int internalformat,
                                             int format,
                                             int type,
                                             java.nio.FloatBuffer data)

DSA version of ClearBufferData.

Parameters:

buffer - the buffer object to clear

internalformat - the internal format with which the data will be stored in the buffer object

format - the format of the data in memory addressed by data. One of:

`STENCIL_INDEX`	`DEPTH_COMPONENT`	`DEPTH_STENCIL`	`RED`	`GREEN`	`BLUE`	`ALPHA`	`RG`
`RGB`	`RGBA`	`BGR`	`BGRA`	`LUMINANCE`	`LUMINANCE_ALPHA`	`RED_INTEGER`	`GREEN_INTEGER`
`BLUE_INTEGER`	`ALPHA_INTEGER`	`RG_INTEGER`	`RGB_INTEGER`	`RGBA_INTEGER`	`BGR_INTEGER`	`BGRA_INTEGER`

type - the type of the data in memory addressed by data. One of:

`UNSIGNED_BYTE`	`BYTE`	`UNSIGNED_SHORT`	`SHORT`
`UNSIGNED_INT`	`INT`	`HALF_FLOAT`	`FLOAT`
`UNSIGNED_BYTE_3_3_2`	`UNSIGNED_BYTE_2_3_3_REV`	`UNSIGNED_SHORT_5_6_5`	`UNSIGNED_SHORT_5_6_5_REV`
`UNSIGNED_SHORT_4_4_4_4`	`UNSIGNED_SHORT_4_4_4_4_REV`	`UNSIGNED_SHORT_5_5_5_1`	`UNSIGNED_SHORT_1_5_5_5_REV`
`UNSIGNED_INT_8_8_8_8`	`UNSIGNED_INT_8_8_8_8_REV`	`UNSIGNED_INT_10_10_10_2`	`UNSIGNED_INT_2_10_10_10_REV`
`UNSIGNED_INT_24_8`	`UNSIGNED_INT_10F_11F_11F_REV`	`UNSIGNED_INT_5_9_9_9_REV`	`FLOAT_32_UNSIGNED_INT_24_8_REV`
`BITMAP`

data - the buffer containing the data to be used as the source of the constant fill value. The elements of data are converted by the GL into the format specified by internalformat, and then used to fill the specified range of the destination buffer. If data is NULL, then it is ignored and the sub-range of the buffer is filled with zeros.

glClearNamedBufferSubDataEXT

public static void glClearNamedBufferSubDataEXT(int buffer,
                                                int internalformat,
                                                long offset,
                                                long size,
                                                int format,
                                                int type,
                                                java.nio.ByteBuffer data)

public static void glClearNamedBufferSubDataEXT(int buffer,
                                                int internalformat,
                                                long offset,
                                                long size,
                                                int format,
                                                int type,
                                                java.nio.ShortBuffer data)

public static void glClearNamedBufferSubDataEXT(int buffer,
                                                int internalformat,
                                                long offset,
                                                long size,
                                                int format,
                                                int type,
                                                java.nio.IntBuffer data)

public static void glClearNamedBufferSubDataEXT(int buffer,
                                                int internalformat,
                                                long offset,
                                                long size,
                                                int format,
                                                int type,
                                                java.nio.FloatBuffer data)

DSA version of ClearBufferSubData.

Parameters:

buffer - the buffer object to clear

internalformat - the internal format with which the data will be stored in the buffer object

offset - the offset, in basic machine units into the buffer object's data store at which to start filling

size - the size, in basic machine units of the range of the data store to fill

format - the format of the data in memory addressed by data. One of:

`STENCIL_INDEX`	`DEPTH_COMPONENT`	`DEPTH_STENCIL`	`RED`	`GREEN`	`BLUE`	`ALPHA`	`RG`
`RGB`	`RGBA`	`BGR`	`BGRA`	`LUMINANCE`	`LUMINANCE_ALPHA`	`RED_INTEGER`	`GREEN_INTEGER`
`BLUE_INTEGER`	`ALPHA_INTEGER`	`RG_INTEGER`	`RGB_INTEGER`	`RGBA_INTEGER`	`BGR_INTEGER`	`BGRA_INTEGER`

type - the type of the data in memory addressed by data. One of:

`UNSIGNED_BYTE`	`BYTE`	`UNSIGNED_SHORT`	`SHORT`
`UNSIGNED_INT`	`INT`	`HALF_FLOAT`	`FLOAT`
`UNSIGNED_BYTE_3_3_2`	`UNSIGNED_BYTE_2_3_3_REV`	`UNSIGNED_SHORT_5_6_5`	`UNSIGNED_SHORT_5_6_5_REV`
`UNSIGNED_SHORT_4_4_4_4`	`UNSIGNED_SHORT_4_4_4_4_REV`	`UNSIGNED_SHORT_5_5_5_1`	`UNSIGNED_SHORT_1_5_5_5_REV`
`UNSIGNED_INT_8_8_8_8`	`UNSIGNED_INT_8_8_8_8_REV`	`UNSIGNED_INT_10_10_10_2`	`UNSIGNED_INT_2_10_10_10_REV`
`UNSIGNED_INT_24_8`	`UNSIGNED_INT_10F_11F_11F_REV`	`UNSIGNED_INT_5_9_9_9_REV`	`FLOAT_32_UNSIGNED_INT_24_8_REV`
`BITMAP`

data - the buffer containing the data to be used as the source of the constant fill value. The elements of data are converted by the GL into the format specified by internalformat, and then used to fill the specified range of the destination buffer. If data is NULL, then it is ignored and the sub-range of the buffer is filled with zeros.

glClearBufferData

public static void glClearBufferData(int target,
                                     int internalformat,
                                     int format,
                                     int type,
                                     short[] data)

public static void glClearBufferData(int target,
                                     int internalformat,
                                     int format,
                                     int type,
                                     int[] data)

public static void glClearBufferData(int target,
                                     int internalformat,
                                     int format,
                                     int type,
                                     float[] data)

Array version of: ClearBufferData

glClearBufferSubData

public static void glClearBufferSubData(int target,
                                        int internalformat,
                                        long offset,
                                        long size,
                                        int format,
                                        int type,
                                        short[] data)

public static void glClearBufferSubData(int target,
                                        int internalformat,
                                        long offset,
                                        long size,
                                        int format,
                                        int type,
                                        int[] data)

public static void glClearBufferSubData(int target,
                                        int internalformat,
                                        long offset,
                                        long size,
                                        int format,
                                        int type,
                                        float[] data)

Array version of: ClearBufferSubData

glClearNamedBufferDataEXT

public static void glClearNamedBufferDataEXT(int buffer,
                                             int internalformat,
                                             int format,
                                             int type,
                                             short[] data)

public static void glClearNamedBufferDataEXT(int buffer,
                                             int internalformat,
                                             int format,
                                             int type,
                                             int[] data)

public static void glClearNamedBufferDataEXT(int buffer,
                                             int internalformat,
                                             int format,
                                             int type,
                                             float[] data)

Array version of: ClearNamedBufferDataEXT

glClearNamedBufferSubDataEXT

public static void glClearNamedBufferSubDataEXT(int buffer,
                                                int internalformat,
                                                long offset,
                                                long size,
                                                int format,
                                                int type,
                                                short[] data)

public static void glClearNamedBufferSubDataEXT(int buffer,
                                                int internalformat,
                                                long offset,
                                                long size,
                                                int format,
                                                int type,
                                                int[] data)

public static void glClearNamedBufferSubDataEXT(int buffer,
                                                int internalformat,
                                                long offset,
                                                long size,
                                                int format,
                                                int type,
                                                float[] data)

Array version of: ClearNamedBufferSubDataEXT

Class ARBClearBufferObject

Method Summary

Methods inherited from class java.lang.Object

Method Detail

glClearBufferData

glClearBufferSubData

glClearNamedBufferDataEXT

glClearNamedBufferSubDataEXT

glClearBufferData

glClearBufferSubData

glClearNamedBufferDataEXT

glClearNamedBufferSubDataEXT