ARBUniformBufferObject (LWJGL 3.2.4 SNAPSHOT

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

```
public class ARBUniformBufferObject
extends java.lang.Object
```
Native bindings to the ARB_uniform_buffer_object extension.
This extension introduces the concept of a group of GLSL uniforms known as a "uniform block", and the API mechanisms to store "uniform blocks" in GL buffer objects.

The extension also defines both a standard cross-platform layout in memory for uniform block data, as well as mechanisms to allow the GL to optimize the data layout in an implementation-defined manner.

Prior to this extension, the existing interface for modification of uniform values allowed modification of large numbers of values using glUniform* calls, but only for a single uniform name (or a uniform array) at a time. However, updating uniforms in this manner may not map well to heterogenous uniform data structures defined for a GL application and in these cases, the application is forced to either:
1. restructure their uniform data definitions into arrays or
2. make an excessive number of calls through the GL interface to one of the Uniform* variants.
These solutions have their disadvantages. Solution A imposes considerable development overhead on the application developer. Solution B may impose considerable run-time overhead on the application if the number of uniforms modified in a given frame of rendering is sufficiently large.

This extension provides a better alternative to either (A) or (B) by allowing buffer object backing for the storage associated with all uniforms of a given GLSL program.

Storing uniform blocks in buffer objects enables several key use cases:
- sharing of uniform data storage between program objects and between program stages
- rapid swapping of sets of previously defined uniforms by storing sets of uniform data on the GL server
- rapid updates of uniform data from both the client and the server
The data storage for a uniform block can be declared to use one of three layouts in memory: packed, shared, or std140.
- "packed" uniform blocks have an implementation-dependent data layout for efficiency, and unused uniforms may be eliminated by the compiler to save space.
- "shared" uniform blocks, the default layout, have an implementation-dependent data layout for efficiency, but the layout will be uniquely determined by the structure of the block, allowing data storage to be shared across programs.
- "std140" uniform blocks have a standard cross-platform cross-vendor layout (see below). Unused uniforms will not be eliminated.
Any uniforms not declared in a named uniform block are said to be part of the "default uniform block".

While uniforms in the default uniform block are updated with glUniform* entry points and can have static initializers, uniforms in named uniform blocks are not. Instead, uniform block data is updated using the routines that update buffer objects and can not use static initializers.

Rules and Concepts Guiding this Specification:

For reference, a uniform has a "uniform index" (subsequently referred to as "u_index) and also a "uniform location" to efficiently identify it in the uniform data store of the implementation. We subsequently refer to this uniform data store of the implementation as the "uniform database".

A "uniform block" only has a "uniform block index" used for queries and connecting the "uniform block" to a buffer object. A "uniform block" has no "location" because "uniform blocks" are not updated directly. The buffer object APIs are used instead.

Properties of Uniforms and uniform blocks:
1. A uniform is "active" if it exists in the database and has a valid u_index.
2. A "uniform block" is "active" if it exists in the database and has a valid ub_index.
3. Uniforms and "uniform blocks" can be inactive because they don't exist in the source, or because they have been removed by dead code elimination.
4. An inactive uniform has u_index == INVALID_INDEX.
5. An inactive uniform block has ub_index == INVALID_INDEX.
6. A u_index or ub_index of INVALID_INDEX generates the INVALID_VALUE error if given as a function argument.
7. The default uniform block, which is not assigned any ub_index, uses a private, internal data storage, and does not have any buffer object associated with it.
8. An active uniform that is a member of the default uniform block has location ≥ 0 and it has offset == stride == -1.
9. An active uniform that is a member of a named uniform block has location == -1.
10. A uniform location of -1 is silently ignored if given as a function argument.
11. Uniform block declarations may not be nested
Requires OpenGL 2.0 or ARB_shader_objects and OpenGL 1.5 or ARB_vertex_buffer_object. Promoted to core in OpenGL 3.1.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH` Accepted by the `pname` parameter of GetProgramiv.
`static int`	`GL_ACTIVE_UNIFORM_BLOCKS` Accepted by the `pname` parameter of GetProgramiv.
`static int`	`GL_INVALID_INDEX` Returned by GetActiveUniformsiv and GetUniformBlockIndex.
`static int`	`GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_MAX_COMBINED_UNIFORM_BLOCKS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_MAX_FRAGMENT_UNIFORM_BLOCKS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_MAX_GEOMETRY_UNIFORM_BLOCKS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_MAX_UNIFORM_BLOCK_SIZE` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_MAX_UNIFORM_BUFFER_BINDINGS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_MAX_VERTEX_UNIFORM_BLOCKS` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_UNIFORM_ARRAY_STRIDE` Accepted by the `pname` parameter of GetActiveUniformsiv.
`static int`	`GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES` Accepted by the `pname` parameter of GetActiveUniformBlockiv.
`static int`	`GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS` Accepted by the `pname` parameter of GetActiveUniformBlockiv.
`static int`	`GL_UNIFORM_BLOCK_BINDING` Accepted by the `pname` parameter of GetActiveUniformBlockiv.
`static int`	`GL_UNIFORM_BLOCK_DATA_SIZE` Accepted by the `pname` parameter of GetActiveUniformBlockiv.
`static int`	`GL_UNIFORM_BLOCK_INDEX` Accepted by the `pname` parameter of GetActiveUniformsiv.
`static int`	`GL_UNIFORM_BLOCK_NAME_LENGTH` Accepted by the `pname` parameter of GetActiveUniformBlockiv.
`static int`	`GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER` Accepted by the `pname` parameter of GetActiveUniformBlockiv.
`static int`	`GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER` Accepted by the `pname` parameter of GetActiveUniformBlockiv.
`static int`	`GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER` Accepted by the `pname` parameter of GetActiveUniformBlockiv.
`static int`	`GL_UNIFORM_BUFFER` Accepted by the `target` parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, and GetBufferPointerv.
`static int`	`GL_UNIFORM_BUFFER_BINDING` Accepted by the `pname` parameter of GetIntegeri_v, GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT` Accepted by the `pname` parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
`static int`	`GL_UNIFORM_BUFFER_SIZE` Accepted by the `pname` parameter of GetIntegeri_v.
`static int`	`GL_UNIFORM_BUFFER_START` Accepted by the `pname` parameter of GetIntegeri_v.
`static int`	`GL_UNIFORM_IS_ROW_MAJOR` Accepted by the `pname` parameter of GetActiveUniformsiv.
`static int`	`GL_UNIFORM_MATRIX_STRIDE` Accepted by the `pname` parameter of GetActiveUniformsiv.
`static int`	`GL_UNIFORM_NAME_LENGTH` Accepted by the `pname` parameter of GetActiveUniformsiv.
`static int`	`GL_UNIFORM_OFFSET` Accepted by the `pname` parameter of GetActiveUniformsiv.
`static int`	`GL_UNIFORM_SIZE` Accepted by the `pname` parameter of GetActiveUniformsiv.
`static int`	`GL_UNIFORM_TYPE` Accepted by the `pname` parameter of GetActiveUniformsiv.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`glBindBufferBase(int target, int index, int buffer)` Binds a buffer object to an indexed buffer target.
`static void`	`glBindBufferRange(int target, int index, int buffer, long offset, long size)` Binds a range within a buffer object to an indexed buffer target.
`static int`	`glGetActiveUniformBlocki(int program, int uniformBlockIndex, int pname)` Queries information about an active uniform block.
`static void`	`glGetActiveUniformBlockiv(int program, int uniformBlockIndex, int pname, int[] params)` Array version of: `GetActiveUniformBlockiv`
`static void`	`glGetActiveUniformBlockiv(int program, int uniformBlockIndex, int pname, java.nio.IntBuffer params)` Queries information about an active uniform block.
`static java.lang.String`	`glGetActiveUniformBlockName(int program, int uniformBlockIndex)` Retrieves the name of an active uniform block.
`static java.lang.String`	`glGetActiveUniformBlockName(int program, int uniformBlockIndex, int bufSize)` Retrieves the name of an active uniform block.
`static void`	`glGetActiveUniformBlockName(int program, int uniformBlockIndex, int[] length, java.nio.ByteBuffer uniformBlockName)` Array version of: `GetActiveUniformBlockName`
`static void`	`glGetActiveUniformBlockName(int program, int uniformBlockIndex, java.nio.IntBuffer length, java.nio.ByteBuffer uniformBlockName)` Retrieves the name of an active uniform block.
`static java.lang.String`	`glGetActiveUniformName(int program, int uniformIndex)` Queries the name of an active uniform.
`static java.lang.String`	`glGetActiveUniformName(int program, int uniformIndex, int bufSize)` Queries the name of an active uniform.
`static void`	`glGetActiveUniformName(int program, int uniformIndex, int[] length, java.nio.ByteBuffer uniformName)` Array version of: `GetActiveUniformName`
`static void`	`glGetActiveUniformName(int program, int uniformIndex, java.nio.IntBuffer length, java.nio.ByteBuffer uniformName)` Queries the name of an active uniform.
`static int`	`glGetActiveUniformsi(int program, int uniformIndex, int pname)` Returns information about several active uniform variables for the specified program object.
`static void`	`glGetActiveUniformsiv(int program, int[] uniformIndices, int pname, int[] params)` Array version of: `GetActiveUniformsiv`
`static void`	`glGetActiveUniformsiv(int program, java.nio.IntBuffer uniformIndices, int pname, java.nio.IntBuffer params)` Returns information about several active uniform variables for the specified program object.
`static void`	`glGetIntegeri_v(int target, int index, int[] data)` Array version of: `GetIntegeri_v`
`static void`	`glGetIntegeri_v(int target, int index, java.nio.IntBuffer data)` Queries the integer value of an indexed state variable.
`static int`	`glGetIntegeri(int target, int index)` Queries the integer value of an indexed state variable.
`static int`	`glGetUniformBlockIndex(int program, java.nio.ByteBuffer uniformBlockName)` Retrieves the index of a named uniform block.
`static int`	`glGetUniformBlockIndex(int program, java.lang.CharSequence uniformBlockName)` Retrieves the index of a named uniform block.
`static int`	`glGetUniformIndices(int program, java.lang.CharSequence uniformName)` Retrieves the indices of a number of uniforms within a program object
`static void`	`glGetUniformIndices(int program, java.lang.CharSequence[] uniformNames, java.nio.IntBuffer uniformIndices)` Retrieves the indices of a number of uniforms within a program object
`static void`	`glGetUniformIndices(int program, org.lwjgl.PointerBuffer uniformNames, int[] uniformIndices)` Array version of: `GetUniformIndices`
`static void`	`glGetUniformIndices(int program, org.lwjgl.PointerBuffer uniformNames, java.nio.IntBuffer uniformIndices)` Retrieves the indices of a number of uniforms within a program object
`static void`	`glUniformBlockBinding(int program, int uniformBlockIndex, int uniformBlockBinding)` Assigns a binding point to an active uniform block.
`static void`	`nglGetActiveUniformBlockiv(int program, int uniformBlockIndex, int pname, long params)` Unsafe version of: `GetActiveUniformBlockiv`
`static void`	`nglGetActiveUniformBlockName(int program, int uniformBlockIndex, int bufSize, long length, long uniformBlockName)` Unsafe version of: `GetActiveUniformBlockName`
`static void`	`nglGetActiveUniformName(int program, int uniformIndex, int bufSize, long length, long uniformName)` Unsafe version of: `GetActiveUniformName`
`static void`	`nglGetActiveUniformsiv(int program, int uniformCount, long uniformIndices, int pname, long params)` Unsafe version of: `GetActiveUniformsiv`
`static void`	`nglGetIntegeri_v(int target, int index, long data)` Unsafe version of: `GetIntegeri_v`
`static int`	`nglGetUniformBlockIndex(int program, long uniformBlockName)` Unsafe version of: `GetUniformBlockIndex`
`static void`	`nglGetUniformIndices(int program, int uniformCount, long uniformNames, long uniformIndices)` Unsafe version of: `GetUniformIndices`

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

Field Detail
- GL_UNIFORM_BUFFER
```
public static final int GL_UNIFORM_BUFFER
```
  Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, and GetBufferPointerv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BUFFER_BINDING
```
public static final int GL_UNIFORM_BUFFER_BINDING
```
  Accepted by the pname parameter of GetIntegeri_v, GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BUFFER_START
```
public static final int GL_UNIFORM_BUFFER_START
```
  Accepted by the pname parameter of GetIntegeri_v.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BUFFER_SIZE
```
public static final int GL_UNIFORM_BUFFER_SIZE
```
  Accepted by the pname parameter of GetIntegeri_v.
  
  See Also:
  
  Constant Field Values
- GL_MAX_VERTEX_UNIFORM_BLOCKS
```
public static final int GL_MAX_VERTEX_UNIFORM_BLOCKS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_MAX_GEOMETRY_UNIFORM_BLOCKS
```
public static final int GL_MAX_GEOMETRY_UNIFORM_BLOCKS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_MAX_FRAGMENT_UNIFORM_BLOCKS
```
public static final int GL_MAX_FRAGMENT_UNIFORM_BLOCKS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_MAX_COMBINED_UNIFORM_BLOCKS
```
public static final int GL_MAX_COMBINED_UNIFORM_BLOCKS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_MAX_UNIFORM_BUFFER_BINDINGS
```
public static final int GL_MAX_UNIFORM_BUFFER_BINDINGS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_MAX_UNIFORM_BLOCK_SIZE
```
public static final int GL_MAX_UNIFORM_BLOCK_SIZE
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS
```
public static final int GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS
```
public static final int GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS
```
public static final int GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT
```
public static final int GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT
```
  Accepted by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev.
  
  See Also:
  
  Constant Field Values
- GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH
```
public static final int GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH
```
  Accepted by the pname parameter of GetProgramiv.
  
  See Also:
  
  Constant Field Values
- GL_ACTIVE_UNIFORM_BLOCKS
```
public static final int GL_ACTIVE_UNIFORM_BLOCKS
```
  Accepted by the pname parameter of GetProgramiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_TYPE
```
public static final int GL_UNIFORM_TYPE
```
  Accepted by the pname parameter of GetActiveUniformsiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_SIZE
```
public static final int GL_UNIFORM_SIZE
```
  Accepted by the pname parameter of GetActiveUniformsiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_NAME_LENGTH
```
public static final int GL_UNIFORM_NAME_LENGTH
```
  Accepted by the pname parameter of GetActiveUniformsiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BLOCK_INDEX
```
public static final int GL_UNIFORM_BLOCK_INDEX
```
  Accepted by the pname parameter of GetActiveUniformsiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_OFFSET
```
public static final int GL_UNIFORM_OFFSET
```
  Accepted by the pname parameter of GetActiveUniformsiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_ARRAY_STRIDE
```
public static final int GL_UNIFORM_ARRAY_STRIDE
```
  Accepted by the pname parameter of GetActiveUniformsiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_MATRIX_STRIDE
```
public static final int GL_UNIFORM_MATRIX_STRIDE
```
  Accepted by the pname parameter of GetActiveUniformsiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_IS_ROW_MAJOR
```
public static final int GL_UNIFORM_IS_ROW_MAJOR
```
  Accepted by the pname parameter of GetActiveUniformsiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BLOCK_BINDING
```
public static final int GL_UNIFORM_BLOCK_BINDING
```
  Accepted by the pname parameter of GetActiveUniformBlockiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BLOCK_DATA_SIZE
```
public static final int GL_UNIFORM_BLOCK_DATA_SIZE
```
  Accepted by the pname parameter of GetActiveUniformBlockiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BLOCK_NAME_LENGTH
```
public static final int GL_UNIFORM_BLOCK_NAME_LENGTH
```
  Accepted by the pname parameter of GetActiveUniformBlockiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS
```
public static final int GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS
```
  Accepted by the pname parameter of GetActiveUniformBlockiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES
```
public static final int GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES
```
  Accepted by the pname parameter of GetActiveUniformBlockiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER
```
public static final int GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER
```
  Accepted by the pname parameter of GetActiveUniformBlockiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER
```
public static final int GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER
```
  Accepted by the pname parameter of GetActiveUniformBlockiv.
  
  See Also:
  
  Constant Field Values
- GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER
```
public static final int GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER
```
  Accepted by the pname parameter of GetActiveUniformBlockiv.
  
  See Also:
  
  Constant Field Values
- GL_INVALID_INDEX
```
public static final int GL_INVALID_INDEX
```
  Returned by GetActiveUniformsiv and GetUniformBlockIndex.
  
  See Also:
  
  Constant Field Values

Method Detail

nglGetUniformIndices

public static void nglGetUniformIndices(int program,
                                        int uniformCount,
                                        long uniformNames,
                                        long uniformIndices)

Unsafe version of: GetUniformIndices

Parameters:: uniformCount - the number of uniforms whose indices to query

glGetUniformIndices
```
public static void glGetUniformIndices(int program,
                                       org.lwjgl.PointerBuffer uniformNames,
                                       java.nio.IntBuffer uniformIndices)
```
Retrieves the indices of a number of uniforms within a program object

Parameters:

program - the name of a program containing uniforms whose indices to query

uniformNames - an array of pointers to buffers containing the names of the queried uniforms

uniformIndices - an array that will receive the indices of the uniforms

glGetUniformIndices
```
public static void glGetUniformIndices(int program,
                                       java.lang.CharSequence[] uniformNames,
                                       java.nio.IntBuffer uniformIndices)
```
Retrieves the indices of a number of uniforms within a program object

Parameters:

program - the name of a program containing uniforms whose indices to query

uniformNames - an array of pointers to buffers containing the names of the queried uniforms

uniformIndices - an array that will receive the indices of the uniforms

glGetUniformIndices
```
public static int glGetUniformIndices(int program,
                                      java.lang.CharSequence uniformName)
```
Retrieves the indices of a number of uniforms within a program object

Parameters:

program - the name of a program containing uniforms whose indices to query

nglGetActiveUniformsiv

public static void nglGetActiveUniformsiv(int program,
                                          int uniformCount,
                                          long uniformIndices,
                                          int pname,
                                          long params)

Unsafe version of: GetActiveUniformsiv

Parameters:: uniformCount - the number of elements in the array of indices uniformIndices and the number of parameters written to params upon successful return

glGetActiveUniformsiv
```
public static void glGetActiveUniformsiv(int program,
                                         java.nio.IntBuffer uniformIndices,
                                         int pname,
                                         java.nio.IntBuffer params)
```
Returns information about several active uniform variables for the specified program object.

Parameters:

program - the program object to be queried

uniformIndices - an array of uniformCount integers containing the indices of uniforms within program

pname - the property of the each uniform in uniformIndices that should be written into the corresponding element of params

params - an array of uniformCount integers which are to receive the value of pname for each uniform in uniformIndices

glGetActiveUniformsi
```
public static int glGetActiveUniformsi(int program,
                                       int uniformIndex,
                                       int pname)
```
Returns information about several active uniform variables for the specified program object.

Parameters:

program - the program object to be queried

pname - the property of the each uniform in uniformIndices that should be written into the corresponding element of params

nglGetActiveUniformName

public static void nglGetActiveUniformName(int program,
                                           int uniformIndex,
                                           int bufSize,
                                           long length,
                                           long uniformName)

Unsafe version of: GetActiveUniformName

Parameters:: bufSize - the size of the buffer, in units of GLchar, of the buffer whose address is specified in uniformName

glGetActiveUniformName
```
public static void glGetActiveUniformName(int program,
                                          int uniformIndex,
                                          @Nullable
                                          java.nio.IntBuffer length,
                                          java.nio.ByteBuffer uniformName)
```
Queries the name of an active uniform.

Parameters:

program - the program containing the active uniform index uniformIndex

uniformIndex - the index of the active uniform whose name to query

length - the address of a variable that will receive the number of characters that were or would have been written to the buffer addressed by uniformName

uniformName - the address of a buffer into which the GL will place the name of the active uniform at uniformIndex within program

glGetActiveUniformName
```
public static java.lang.String glGetActiveUniformName(int program,
                                                      int uniformIndex,
                                                      int bufSize)
```
Queries the name of an active uniform.

Parameters:

program - the program containing the active uniform index uniformIndex

uniformIndex - the index of the active uniform whose name to query

bufSize - the size of the buffer, in units of GLchar, of the buffer whose address is specified in uniformName

glGetActiveUniformName
```
public static java.lang.String glGetActiveUniformName(int program,
                                                      int uniformIndex)
```
Queries the name of an active uniform.

Parameters:

program - the program containing the active uniform index uniformIndex

uniformIndex - the index of the active uniform whose name to query

nglGetUniformBlockIndex

public static int nglGetUniformBlockIndex(int program,
                                          long uniformBlockName)

Unsafe version of: GetUniformBlockIndex

glGetUniformBlockIndex
```
public static int glGetUniformBlockIndex(int program,
                                         java.nio.ByteBuffer uniformBlockName)
```
Retrieves the index of a named uniform block.

Parameters:

program - the name of a program containing the uniform block

uniformBlockName - an array of characters to containing the name of the uniform block whose index to retrieve

glGetUniformBlockIndex
```
public static int glGetUniformBlockIndex(int program,
                                         java.lang.CharSequence uniformBlockName)
```
Retrieves the index of a named uniform block.

Parameters:

program - the name of a program containing the uniform block

uniformBlockName - an array of characters to containing the name of the uniform block whose index to retrieve

nglGetActiveUniformBlockiv

public static void nglGetActiveUniformBlockiv(int program,
                                              int uniformBlockIndex,
                                              int pname,
                                              long params)

Unsafe version of: GetActiveUniformBlockiv

glGetActiveUniformBlockiv

public static void glGetActiveUniformBlockiv(int program,
                                             int uniformBlockIndex,
                                             int pname,
                                             java.nio.IntBuffer params)

Queries information about an active uniform block.

Parameters:

program - the name of a program containing the uniform block

uniformBlockIndex - the index of the uniform block within program

pname - the name of the parameter to query. One of:

`UNIFORM_BLOCK_BINDING`	`UNIFORM_BLOCK_DATA_SIZE`
`UNIFORM_BLOCK_NAME_LENGTH`	`UNIFORM_BLOCK_ACTIVE_UNIFORMS`
`UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES`	`UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER`
`UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER`	`UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER`

params - the address of a variable to receive the result of the query

glGetActiveUniformBlocki

public static int glGetActiveUniformBlocki(int program,
                                           int uniformBlockIndex,
                                           int pname)

Queries information about an active uniform block.

Parameters:

program - the name of a program containing the uniform block

uniformBlockIndex - the index of the uniform block within program

pname - the name of the parameter to query. One of:

`UNIFORM_BLOCK_BINDING`	`UNIFORM_BLOCK_DATA_SIZE`
`UNIFORM_BLOCK_NAME_LENGTH`	`UNIFORM_BLOCK_ACTIVE_UNIFORMS`
`UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES`	`UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER`
`UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER`	`UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER`

nglGetActiveUniformBlockName

public static void nglGetActiveUniformBlockName(int program,
                                                int uniformBlockIndex,
                                                int bufSize,
                                                long length,
                                                long uniformBlockName)

Unsafe version of: GetActiveUniformBlockName

Parameters:: bufSize - the size of the buffer addressed by uniformBlockName

glGetActiveUniformBlockName
```
public static void glGetActiveUniformBlockName(int program,
                                               int uniformBlockIndex,
                                               @Nullable
                                               java.nio.IntBuffer length,
                                               java.nio.ByteBuffer uniformBlockName)
```
Retrieves the name of an active uniform block.

Parameters:

program - the name of a program containing the uniform block

uniformBlockIndex - the index of the uniform block within program

length - the address of a variable to receive the number of characters that were written to uniformBlockName

uniformBlockName - an array of characters to receive the name of the uniform block at uniformBlockIndex

glGetActiveUniformBlockName
```
public static java.lang.String glGetActiveUniformBlockName(int program,
                                                           int uniformBlockIndex,
                                                           int bufSize)
```
Retrieves the name of an active uniform block.

Parameters:

program - the name of a program containing the uniform block

uniformBlockIndex - the index of the uniform block within program

bufSize - the size of the buffer addressed by uniformBlockName

glGetActiveUniformBlockName
```
public static java.lang.String glGetActiveUniformBlockName(int program,
                                                           int uniformBlockIndex)
```
Retrieves the name of an active uniform block.

Parameters:

program - the name of a program containing the uniform block

uniformBlockIndex - the index of the uniform block within program

glBindBufferRange
```
public static void glBindBufferRange(int target,
                                     int index,
                                     int buffer,
                                     long offset,
                                     long size)
```
Binds a range within a buffer object to an indexed buffer target.

Parameters:

target - the target of the bind operation. One of:
TRANSFORM_FEEDBACK_BUFFER UNIFORM_BUFFER ATOMIC_COUNTER_BUFFER SHADER_STORAGE_BUFFER

index - the index of the binding point within the array specified by target

buffer - a buffer object to bind to the specified binding point

offset - the starting offset in basic machine units into the buffer object buffer

size - the amount of data in machine units that can be read from the buffer object while used as an indexed target

glBindBufferBase
```
public static void glBindBufferBase(int target,
                                    int index,
                                    int buffer)
```
Binds a buffer object to an indexed buffer target.

Parameters:

target - the target of the bind operation. One of:
TRANSFORM_FEEDBACK_BUFFER UNIFORM_BUFFER ATOMIC_COUNTER_BUFFER SHADER_STORAGE_BUFFER

index - the index of the binding point within the array specified by target

buffer - a buffer object to bind to the specified binding point

nglGetIntegeri_v

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

Unsafe version of: GetIntegeri_v

glGetIntegeri_v
```
public static void glGetIntegeri_v(int target,
                                   int index,
                                   java.nio.IntBuffer data)
```
Queries the integer value of an indexed state variable.

Parameters:

target - the indexed state to query

index - the index of the element being queried

data - a scalar or buffer in which to place the returned data

glGetIntegeri
```
public static int glGetIntegeri(int target,
                                int index)
```
Queries the integer value of an indexed state variable.

Parameters:

target - the indexed state to query

index - the index of the element being queried

glUniformBlockBinding
```
public static void glUniformBlockBinding(int program,
                                         int uniformBlockIndex,
                                         int uniformBlockBinding)
```
Assigns a binding point to an active uniform block.

Parameters:

program - the name of a program object containing the active uniform block whose binding to assign

uniformBlockIndex - the index of the active uniform block within program whose binding to assign

uniformBlockBinding - the binding point to which to bind the uniform block with index uniformBlockIndex within program

glGetUniformIndices

public static void glGetUniformIndices(int program,
                                       org.lwjgl.PointerBuffer uniformNames,
                                       int[] uniformIndices)

Array version of: GetUniformIndices

glGetActiveUniformsiv

public static void glGetActiveUniformsiv(int program,
                                         int[] uniformIndices,
                                         int pname,
                                         int[] params)

Array version of: GetActiveUniformsiv

glGetActiveUniformName

public static void glGetActiveUniformName(int program,
                                          int uniformIndex,
                                          @Nullable
                                          int[] length,
                                          java.nio.ByteBuffer uniformName)

Array version of: GetActiveUniformName

glGetActiveUniformBlockiv

public static void glGetActiveUniformBlockiv(int program,
                                             int uniformBlockIndex,
                                             int pname,
                                             int[] params)

Array version of: GetActiveUniformBlockiv

glGetActiveUniformBlockName

public static void glGetActiveUniformBlockName(int program,
                                               int uniformBlockIndex,
                                               @Nullable
                                               int[] length,
                                               java.nio.ByteBuffer uniformBlockName)

Array version of: GetActiveUniformBlockName

glGetIntegeri_v

public static void glGetIntegeri_v(int target,
                                   int index,
                                   int[] data)

Array version of: GetIntegeri_v

Class ARBUniformBufferObject

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GL_UNIFORM_BUFFER

GL_UNIFORM_BUFFER_BINDING

GL_UNIFORM_BUFFER_START

GL_UNIFORM_BUFFER_SIZE

GL_MAX_VERTEX_UNIFORM_BLOCKS

GL_MAX_GEOMETRY_UNIFORM_BLOCKS

GL_MAX_FRAGMENT_UNIFORM_BLOCKS

GL_MAX_COMBINED_UNIFORM_BLOCKS

GL_MAX_UNIFORM_BUFFER_BINDINGS

GL_MAX_UNIFORM_BLOCK_SIZE

GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS

GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS

GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS

GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT

GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH

GL_ACTIVE_UNIFORM_BLOCKS

GL_UNIFORM_TYPE

GL_UNIFORM_SIZE

GL_UNIFORM_NAME_LENGTH

GL_UNIFORM_BLOCK_INDEX

GL_UNIFORM_OFFSET

GL_UNIFORM_ARRAY_STRIDE

GL_UNIFORM_MATRIX_STRIDE

GL_UNIFORM_IS_ROW_MAJOR

GL_UNIFORM_BLOCK_BINDING

GL_UNIFORM_BLOCK_DATA_SIZE

GL_UNIFORM_BLOCK_NAME_LENGTH

GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS

GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES

GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER

GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER

GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER

GL_INVALID_INDEX

Method Detail

nglGetUniformIndices

glGetUniformIndices

glGetUniformIndices

glGetUniformIndices

nglGetActiveUniformsiv

glGetActiveUniformsiv

glGetActiveUniformsi

nglGetActiveUniformName

glGetActiveUniformName

glGetActiveUniformName

glGetActiveUniformName

nglGetUniformBlockIndex

glGetUniformBlockIndex

glGetUniformBlockIndex

nglGetActiveUniformBlockiv

glGetActiveUniformBlockiv

glGetActiveUniformBlocki

nglGetActiveUniformBlockName

glGetActiveUniformBlockName

glGetActiveUniformBlockName

glGetActiveUniformBlockName

glBindBufferRange

glBindBufferBase

nglGetIntegeri_v

glGetIntegeri_v

glGetIntegeri

glUniformBlockBinding

glGetUniformIndices

glGetActiveUniformsiv

glGetActiveUniformName

glGetActiveUniformBlockiv

glGetActiveUniformBlockName

glGetIntegeri_v