glgetqueryiv(3g) [osx man page]
GLGETQUERYIV(3G) OpenGL 3.3 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_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
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/. OpenGL 3.3 03/08/2011 GLGETQUERYIV(3G)
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GLGETQUERYOBJECT(3G) OpenGL 3.3 GLGETQUERYOBJECT(3G) NAME
glGetQueryObject - return parameters of a query object C SPECIFICATION
void glGetQueryObjectiv(GLuint id, GLenum pname, GLint * params); void glGetQueryObjectuiv(GLuint id, GLenum pname, GLuint * params); void glGetQueryObjecti64v(GLuint id, GLenum pname, GLint64 * params); void glGetQueryObjectui64v(GLuint id, GLenum pname, GLuint64 * params); PARAMETERS
id Specifies the name of a query object. pname Specifies the symbolic name of a query object parameter. Accepted values are GL_QUERY_RESULT or GL_QUERY_RESULT_AVAILABLE. params Returns the requested data. DESCRIPTION
glGetQueryObject returns in params a selected parameter of the query object specified by id. pname names a specific query object parameter. pname can be as follows: GL_QUERY_RESULT params returns the value of the query object's passed samples counter. The initial value is 0. GL_QUERY_RESULT_AVAILABLE params returns whether the passed samples counter is immediately available. If a delay would occur waiting for the query result, GL_FALSE is returned. Otherwise, GL_TRUE is returned, which also indicates that the results of all previous queries are available as well. NOTES
If an error is generated, no change is made to the contents of params. glGetQueryObject implicitly flushes the GL pipeline so that any incomplete rendering delimited by the occlusion query completes in finite time. If multiple queries are issued using the same query object id before calling glGetQueryObject, the results of the most recent query will be returned. In this case, when issuing a new query, the results of the previous query are discarded. glGetQueryObjecti64v and glGetQueryObjectui64v are available only if the GL version is 3.3 or greater. ERRORS
GL_INVALID_ENUM is generated if pname is not an accepted value. GL_INVALID_OPERATION is generated if id is not the name of a query object. GL_INVALID_OPERATION is generated if id is the name of a currently active query object. SEE ALSO
glBeginQuery(), glEndQuery(), glGetQueryiv(), glIsQuery(), glQueryCounter() 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/. OpenGL 3.3 03/08/2011 GLGETQUERYOBJECT(3G)