GLGETBUFFERPOINTERV(3G) OpenGL Manual GLGETBUFFERPOINTERV(3G)NAME
glGetBufferPointerv - return the pointer to a mapped buffer object's data store
C SPECIFICATION
void glGetBufferPointerv(GLenum target, GLenum pname, GLvoid ** params);
PARAMETERS
target
Specifies the target buffer object. The symbolic constant must be GL_ARRAY_BUFFER, GL_ATOMIC_COUNTER_BUFFER, GL_COPY_READ_BUFFER,
GL_COPY_WRITE_BUFFER, GL_DRAW_INDIRECT_BUFFER, GL_DISPATCH_INDIRECT_BUFFER, GL_ELEMENT_ARRAY_BUFFER, GL_PIXEL_PACK_BUFFER,
GL_PIXEL_UNPACK_BUFFER, GL_SHADER_STORAGE_BUFFER, GL_TEXTURE_BUFFER, GL_TRANSFORM_FEEDBACK_BUFFER, or GL_UNIFORM_BUFFER.
pname
Specifies the pointer to be returned. The symbolic constant must be GL_BUFFER_MAP_POINTER.
params
Returns the pointer value specified by pname.
DESCRIPTION
glGetBufferPointerv returns pointer information. pname is a symbolic constant indicating the pointer to be returned, which must be
GL_BUFFER_MAP_POINTER, the pointer to which the buffer object's data store is mapped. If the data store is not currently mapped, NULL is
returned. params is a pointer to a location in which to place the returned pointer value.
NOTES
If an error is generated, no change is made to the contents of params.
The initial value for the pointer is NULL.
The GL_ATOMIC_COUNTER_BUFER target is available only if the GL version is 4.2 or greater.
The GL_DISPATCH_INDIRECT_BUFFER and GL_SHADER_STORAGE_BUFFER targets are available only if the GL version is 4.3 or greater.
ERRORS
GL_INVALID_ENUM is generated if target or pname is not an accepted value.
GL_INVALID_OPERATION is generated if the reserved buffer object name 0 is bound to target.
SEE ALSO
glBindBuffer(), glMapBuffer()
COPYRIGHT
Copyright (C) 2005 Addison-Wesley. 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/.
AUTHORS
opengl.org
opengl.org 06/10/2014 GLGETBUFFERPOINTERV(3G)
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GLGETQUERYIV(3G) OpenGL Manual GLGETQUERYIV(3G)NAME
glGetQueryiv - return parameters of a query object target
C SPECIFICATION
void glGetQueryiv(GLenum target, GLenum pname, GLint * params);
PARAMETERS
target
Specifies a query object target. Must be GL_SAMPLES_PASSED, GL_ANY_SAMPLES_PASSED,
GL_ANY_SAMPLES_PASSED_CONSERVATIVEGL_PRIMITIVES_GENERATED, GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN, GL_TIME_ELAPSED, or GL_TIMESTAMP.
pname
Specifies the symbolic name of a query object target parameter. Accepted values are GL_CURRENT_QUERY or GL_QUERY_COUNTER_BITS.
params
Returns the requested data.
DESCRIPTION
glGetQueryiv returns in params a selected parameter of the query object target specified by target.
pname names a specific query object target parameter. When pname is GL_CURRENT_QUERY, the name of the currently active query for target, or
zero if no query is active, will be placed in params. If pname is GL_QUERY_COUNTER_BITS, the implementation-dependent number of bits used
to hold the result of queries for target is returned in params.
NOTES
The target GL_ANY_SAMPLES_PASSED_CONSERVATIVE is available only if the GL version is 4.3 or greater.
If an error is generated, no change is made to the contents of params.
ERRORS
GL_INVALID_ENUM is generated if target or pname is not an accepted value.
SEE ALSO
glGetQueryObject(), glIsQuery()
COPYRIGHT
Copyright (C) 2005 Addison-Wesley. 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/.
AUTHORS
opengl.org
opengl.org 06/10/2014 GLGETQUERYIV(3G)
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