Difference between revisions of "GLAPI/glGetQuery"

From OpenGL.org
Jump to: navigation, search
m (Bot: Adding better formatting.)
m (Bot: Adding better formatting.)
Line 11: Line 11:
  
 
; target
 
; target
: Specifies a query object target. Must be {{enum|GL_SAMPLES_PASSED}}, {{enum|GL_ANY_SAMPLES_PASSED}}, {{enum|GL_PRIMITIVES_GENERATED}}, {{enum|GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN}}, {{enum|GL_TIME_ELAPSED}}, or {{enum|GL_TIMESTAMP}}.
+
: Specifies a query object target. Must be {{enum|GL_SAMPLES_PASSED}}, {{enum|GL_ANY_SAMPLES_PASSED}}, {{enum|GL_ANY_SAMPLES_PASSED_CONSERVATIVE}}{{enum|GL_PRIMITIVES_GENERATED}}, {{enum|GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN}}, {{enum|GL_TIME_ELAPSED}}, or {{enum|GL_TIMESTAMP}}.
 
; pname
 
; pname
 
: Specifies the symbolic name of a query object target parameter. Accepted values are {{enum|GL_CURRENT_QUERY}} or {{enum|GL_QUERY_COUNTER_BITS}}.
 
: Specifies the symbolic name of a query object target parameter. Accepted values are {{enum|GL_CURRENT_QUERY}} or {{enum|GL_QUERY_COUNTER_BITS}}.
Line 24: Line 24:
  
 
== Notes ==
 
== Notes ==
 +
 +
The target {{enum|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 {{param|params}}.
 
If an error is generated, no change is made to the contents of {{param|params}}.

Revision as of 04:28, 13 August 2012

glGetQueryiv
Core in version 4.5
Core since version 1.5

glGetQueryiv: return parameters of a query object target

Function Definition

 void glGetQueryiv(GLenum target​, GLenum pname​, GLint * params​);
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 © 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/.