LWJGL 3.3.3 · org.lwjgl.opengles.OESTextureBuffer

Native bindings to the OES_texture_buffer extension.

This extension provides a new texture type, called a buffer texture. Buffer textures are one-dimensional arrays of texels whose storage comes from an attached buffer object. When a buffer object is bound to a buffer texture, a format is specified, and the data in the buffer object is treated as an array of texels of the specified format.

The use of a buffer object to provide storage allows the texture data to be specified in a number of different ways: via buffer object loads (BufferData), direct CPU writes (MapBuffer), or framebuffer readbacks to pixel buffer objects (ReadPixels). A buffer object can also be loaded by transform feedback, which captures selected transformed attributes of vertices processed by the GL. Several of these mechanisms do not require an extra data copy, which would be required when using conventional TexImage-like entry points.

Buffer textures do not support mipmapping, texture lookups with normalized floating-point texture coordinates, and texture filtering of any sort. They can be accessed via single texel fetch operations in programmable shaders, using a new sampler type and texel fetch function, and access can be controlled using the same memory barrier operations as for other texture types.

Buffer textures are treated as (potentially large) one-dimensional textures; the maximum texture size supported for buffer textures in the initial implementation of this extension is 2²⁷ texels (note that this extension only guarantees support for buffer textures with 2¹⁶ texels, but we expect most implementations to exceed that substantially). When a buffer object is attached to a buffer texture, a size is not specified; rather, the number of texels in the texture is taken by dividing the size of the buffer object by the size of each texel.

This extension also allows a sub-range of the buffer's data store to be attached to a texture. This can be used, for example, to allow multiple buffer textures to be backed by independent sub-ranges of the same buffer object, or for different sub-ranges of a single buffer object to be used for different purposes.

Requires GLES 3.1.

Field Summary

Modifier and Type	Field and Description
public static final int	GL_IMAGE_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points).
public static final int	GL_INT_IMAGE_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points).
public static final int	GL_INT_SAMPLER_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points).
public static final int	GL_SAMPLER_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points).
public static final int	GL_TEXTURE_BUFFER_BINDING_OES Accepted by the `pname` parameters of GetBooleanv, GetFloatv, and GetIntegerv.
public static final int	GL_TEXTURE_BUFFER_DATA_STORE_BINDING_OES Accepted by the `pname` parameter of GetTexLevelParameter.
public static final int	GL_TEXTURE_BUFFER_OES Accepted by the `target` parameter of BindBuffer, BufferData, BufferSubData, MapBufferRange, BindTexture, UnmapBuffer, GetBufferParameteriv, GetBufferPointerv, TexBufferOES, and TexBufferRangeOES.
public static final int	GL_TEXTURE_BUFFER_OFFSET_OES Accepted by the `pname` parameter of GetTexLevelParameter.
public static final int	GL_TEXTURE_BUFFER_SIZE_OES Accepted by the `pname` parameter of GetTexLevelParameter.
public static final int	GL_UNSIGNED_INT_IMAGE_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points).
public static final int	GL_UNSIGNED_INT_SAMPLER_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points).

Access	Constructor and Description
protected	OESTextureBuffer()

Method Summary

Modifier and Type	Method and Description
public static native void	glTexBufferOES(int target, int internalformat, int buffer)
public static native void	glTexBufferRangeOES(int target, int internalformat, int buffer, long offset, long size)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

GL_IMAGE_BUFFER_OES back to summary

GL_IMAGE_BUFFER_OES	back to summary
public static final int GL_IMAGE_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points). MAX_TEXTURE_BUFFER_SIZE_OES 0x8C2B TEXTURE_BINDING_BUFFER_OES 0x8C2C TEXTURE_BUFFER_OFFSET_ALIGNMENT_OES 0x919F Returned in the `type` parameter of GetActiveUniform, the `params` parameter of GetActiveUniformsiv, and the `params` parameter of GetProgramResourceiv when the TYPE property is queried on the UNIFORM interface.

public static final int GL_IMAGE_BUFFER_OES

(note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points). MAX_TEXTURE_BUFFER_SIZE_OES 0x8C2B TEXTURE_BINDING_BUFFER_OES 0x8C2C TEXTURE_BUFFER_OFFSET_ALIGNMENT_OES 0x919F Returned in the type parameter of GetActiveUniform, the params parameter of GetActiveUniformsiv, and the params parameter of GetProgramResourceiv when the TYPE property is queried on the UNIFORM interface.

GL_INT_IMAGE_BUFFER_OES back to summary

GL_INT_IMAGE_BUFFER_OES	back to summary
public static final int GL_INT_IMAGE_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points). MAX_TEXTURE_BUFFER_SIZE_OES 0x8C2B TEXTURE_BINDING_BUFFER_OES 0x8C2C TEXTURE_BUFFER_OFFSET_ALIGNMENT_OES 0x919F Returned in the `type` parameter of GetActiveUniform, the `params` parameter of GetActiveUniformsiv, and the `params` parameter of GetProgramResourceiv when the TYPE property is queried on the UNIFORM interface.

public static final int GL_INT_IMAGE_BUFFER_OES

GL_INT_SAMPLER_BUFFER_OES back to summary

GL_INT_SAMPLER_BUFFER_OES	back to summary
public static final int GL_INT_SAMPLER_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points). MAX_TEXTURE_BUFFER_SIZE_OES 0x8C2B TEXTURE_BINDING_BUFFER_OES 0x8C2C TEXTURE_BUFFER_OFFSET_ALIGNMENT_OES 0x919F Returned in the `type` parameter of GetActiveUniform, the `params` parameter of GetActiveUniformsiv, and the `params` parameter of GetProgramResourceiv when the TYPE property is queried on the UNIFORM interface.

public static final int GL_INT_SAMPLER_BUFFER_OES

GL_SAMPLER_BUFFER_OES back to summary

GL_SAMPLER_BUFFER_OES	back to summary
public static final int GL_SAMPLER_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points). MAX_TEXTURE_BUFFER_SIZE_OES 0x8C2B TEXTURE_BINDING_BUFFER_OES 0x8C2C TEXTURE_BUFFER_OFFSET_ALIGNMENT_OES 0x919F Returned in the `type` parameter of GetActiveUniform, the `params` parameter of GetActiveUniformsiv, and the `params` parameter of GetProgramResourceiv when the TYPE property is queried on the UNIFORM interface.

public static final int GL_SAMPLER_BUFFER_OES

GL_TEXTURE_BUFFER_BINDING_OES	back to summary
public static final int GL_TEXTURE_BUFFER_BINDING_OES Accepted by the `pname` parameters of GetBooleanv, GetFloatv, and GetIntegerv.

GL_TEXTURE_BUFFER_DATA_STORE_BINDING_OES	back to summary
public static final int GL_TEXTURE_BUFFER_DATA_STORE_BINDING_OES Accepted by the `pname` parameter of GetTexLevelParameter.

GL_TEXTURE_BUFFER_OES	back to summary
public static final int GL_TEXTURE_BUFFER_OES Accepted by the `target` parameter of BindBuffer, BufferData, BufferSubData, MapBufferRange, BindTexture, UnmapBuffer, GetBufferParameteriv, GetBufferPointerv, TexBufferOES, and TexBufferRangeOES.

GL_TEXTURE_BUFFER_OFFSET_OES	back to summary
public static final int GL_TEXTURE_BUFFER_OFFSET_OES Accepted by the `pname` parameter of GetTexLevelParameter.

GL_TEXTURE_BUFFER_SIZE_OES	back to summary
public static final int GL_TEXTURE_BUFFER_SIZE_OES Accepted by the `pname` parameter of GetTexLevelParameter.

GL_UNSIGNED_INT_IMAGE_BUFFER_OES back to summary

GL_UNSIGNED_INT_IMAGE_BUFFER_OES	back to summary
public static final int GL_UNSIGNED_INT_IMAGE_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points). MAX_TEXTURE_BUFFER_SIZE_OES 0x8C2B TEXTURE_BINDING_BUFFER_OES 0x8C2C TEXTURE_BUFFER_OFFSET_ALIGNMENT_OES 0x919F Returned in the `type` parameter of GetActiveUniform, the `params` parameter of GetActiveUniformsiv, and the `params` parameter of GetProgramResourceiv when the TYPE property is queried on the UNIFORM interface.

public static final int GL_UNSIGNED_INT_IMAGE_BUFFER_OES

GL_UNSIGNED_INT_SAMPLER_BUFFER_OES back to summary

GL_UNSIGNED_INT_SAMPLER_BUFFER_OES	back to summary
public static final int GL_UNSIGNED_INT_SAMPLER_BUFFER_OES (note that this token name is an alias for TEXTURE_BUFFER_OES, and is used for naming consistency with queries for the buffers bound to other buffer binding points). MAX_TEXTURE_BUFFER_SIZE_OES 0x8C2B TEXTURE_BINDING_BUFFER_OES 0x8C2C TEXTURE_BUFFER_OFFSET_ALIGNMENT_OES 0x919F Returned in the `type` parameter of GetActiveUniform, the `params` parameter of GetActiveUniformsiv, and the `params` parameter of GetProgramResourceiv when the TYPE property is queried on the UNIFORM interface.

public static final int GL_UNSIGNED_INT_SAMPLER_BUFFER_OES

public Class OESTextureBuffer

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail