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GLGETBUFFERPARAMETER(3G) [FIXME: manual] GLGETBUFFERPARAMETER(3G)

NAME

glGetBufferParameteriv - return parameters of a buffer object

C SPECIFICATION

void glGetBufferParameteriv(GLenum target, GLenum value, GLint * data);

PARAMETERS

target
Specifies the target buffer object. The symbolic constant must be GL_ARRAY_BUFFER, GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, GL_ELEMENT_ARRAY_BUFFER, GL_PIXEL_PACK_BUFFER, GL_PIXEL_UNPACK_BUFFER, GL_TEXTURE_BUFFER, GL_TRANSFORM_FEEDBACK_BUFFER, or GL_UNIFORM_BUFFER.
value
Specifies the symbolic name of a buffer object parameter. Accepted values are GL_BUFFER_ACCESS, GL_BUFFER_MAPPED, GL_BUFFER_SIZE, or GL_BUFFER_USAGE.
data
Returns the requested parameter.

DESCRIPTION

 
glGetBufferParameteriv returns in data a selected parameter of the buffer object specified by target.
 
value names a specific buffer object parameter, as follows:
GL_BUFFER_ACCESS
 
params returns the access policy set while mapping the buffer object. The initial value is GL_READ_WRITE.
GL_BUFFER_MAPPED
 
params returns a flag indicating whether the buffer object is currently mapped. The initial value is GL_FALSE.
GL_BUFFER_SIZE
 
params returns the size of the buffer object, measured in bytes. The initial value is 0.
GL_BUFFER_USAGE
 
params returns the buffer object's usage pattern. The initial value is GL_STATIC_DRAW.

NOTES

If an error is generated, no change is made to the contents of data.

ERRORS

 
GL_INVALID_ENUM is generated if target or value is not an accepted value.
 
GL_INVALID_OPERATION is generated if the reserved buffer object name 0 is bound to target.

SEE ALSO

 
glBindBuffer(), glBufferData(), glMapBuffer(), glUnmapBuffer()

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/.
05/30/2012 [FIXME: source]