Provided by: opengl-4-man-doc_1.0~svn33624-1_all 
NAME
glGetActiveAtomicCounterBufferiv - retrieve information about the set of active atomic counter buffers
for a program
C SPECIFICATION
void glGetActiveAtomicCounterBufferiv(Gluint program, GLuint bufferIndex, GLenum pname, GLint *params);
PARAMETERS
program
The name of a program object from which to retrieve information.
bufferIndex
Specifies index of an active atomic counter buffer.
pname
Specifies which parameter of the atomic counter buffer to retrieve.
params
Specifies the address of a variable into which to write the retrieved information.
DESCRIPTION
glGetActiveAtomicCounterBufferiv retrieves information about the set of active atomic counter buffers for
a program object. program is the name of a program object for which the command glLinkProgram() has been
issued in the past. It is not necessary for program to have been linked successfully. The link may have
failed because the number of active atomic counters exceeded the limits.
bufferIndex specifies the index of an active atomic counter buffer and must be in the range zero to the
value of GL_ACTIVE_ATOMIC_COUNTER_BUFFERS minus one. The value of GL_ACTIVE_ATOMIC_COUNTER_BUFFERS for
program indicates the number of active atomic counter buffer and can be queried with glGetProgram().
If no error occurs, the parameter(s) specified by pname are returned in params. If an error is generated,
the contents of params are not modified.
If pname is GL_ATOMIC_COUNTER_BUFFER_BINDING, then the index of the counter buffer binding point
associated with the active atomic counter buffer bufferIndex for program is returned.
If pname is GL_ATOMIC_COUNTER_BUFFER_DATA_SIZE, then the implementation-dependent minimum total buffer
object size, in baseic machine units, required to hold all active atomic counters in the atomic counter
binding point identified by bufferIndex is returned.
If pname is GL_ATOMIC_COUNTER_BUFFER_ACTIVE_ATOMIC_COUNTERS, then the number of active atomic counters
for the atomic counter buffer identified by bufferIndex is returned.
If pname is GL_ATOMIC_COUNTER_BUFFER_ACTIVE_ATOMIC_COUNTER_INDICES, then a list of the active atomic
counter indices for the atomic counter buffer identified by bufferIndex is returned. The number of
elements that will be written into params is the value of GL_ATOMIC_COUNTER_BUFFER_ACTIVE_ATOMIC_COUNTERS
for bufferIndex.
If pname is GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_VERTEX_SHADER,
GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TESS_CONTROL_SHADER,
GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TESS_EVALUATION_SHADER,
GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_GEOMETRY_SHADER,
GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_FRAGMENT_SHADER,
GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_COMPUTE_SHADER then a boolean value indicating whether the atomic
counter buffer identified by bufferIndex is referenced by the vertex, tessellation control, tessellation
evaluation, geometry, fragment or compute processing stages of program, respectively, is returned.
NOTES
glGetActiveAtomicCounterBufferiv is available only if the GL version is 4.2 or higher.
GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_COMPUTE_SHADER is available only of the GL version is 4.3 or
higher.
ERRORS
GL_INVALID_VALUE is generated if program is not the name of a program object for which glLinkProgram()
has been called in the past.
GL_INVALID_VALUE is generated if bufferIndex is greater than or equal to the value of
GL_ACTIVE_ATOMIC_COUNTER_BUFFERS for program.
GL_INVALID_ENUM is generated if pname is not one of the accepted tokens.
VERSION SUPPORT
┌─────────────────────────────────┬───────────────────────────────────────────────────────────────────────┐
│ │ OpenGL Version │
├─────────────────────────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
│Function │ 2.0 │ 2.1 │ 3.0 │ 3.1 │ 3.2 │ 3.3 │ 4.0 │ 4.1 │ 4.2 │ 4.3 │ 4.4 │ 4.5 │
│/ │ │ │ │ │ │ │ │ │ │ │ │ │
│Feature │ │ │ │ │ │ │ │ │ │ │ │ │
│Name │ │ │ │ │ │ │ │ │ │ │ │ │
├─────────────────────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
│glGetActiveAtomicCounterBufferiv │ - │ - │ - │ - │ - │ - │ - │ - │ ✔ │ ✔ │ ✔ │ ✔ │
└─────────────────────────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘
SEE ALSO
glGetProgram(), glGetActiveSubroutineUniform(), glGetActiveSubroutineUniformName(),
glGetUniformLocation()
COPYRIGHT
Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions
set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.
COPYRIGHT
Copyright © 2011-2014 Khronos Group.
[FIXME: source] 01/03/2018 GLGETACTIVEATOMICCOU(3G)