GLAPI/glGetQuery: Difference between revisions
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; 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}}. | ||
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== 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 08:28, 13 August 2012
| Core in version | 4.6 | |
|---|---|---|
| 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
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/.