GLAPI/glInvalidateBufferSubData

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glInvalidateBufferSubData
Core in version 4.4
Core since version 4.3
Core ARB extension ARB_invalidate_subdata

glInvalidateBufferSubData: invalidate a region of a buffer object's data store

Function Definition

 void glInvalidateBufferSubData(GLuint buffer​, GLintptr offset​, GLsizeiptr length​);
buffer
The name of a buffer object, a subrange of whose data store to invalidate.
offset
The offset within the buffer's data store of the start of the range to be invalidated.
length
The length of the range within the buffer's data store to be invalidated.

Description

glInvalidateBufferSubData invalidates all or part of the content of the data store of a buffer object. After invalidation, the content of the specified range of the buffer's data store becomes undefined. The start of the range is given by offset​ and its size is given by length​, both measured in basic machine units.

Errors

GL_INVALID_VALUE​ is generated if offset​ or length​ is negative, or if offset​ + length​ is greater than the value of GL_BUFFER_SIZE​ for buffer​.

GL_INVALID_VALUE​ is generated if buffer​ is not the name of an existing buffer object.

GL_INVALID_OPERATION​ is generated if any part of buffer​ is currently mapped.

Associated Gets

glGetBufferParameter with argument GL_BUFFER_SIZE​

See Also

glBufferData, glInvalidateBufferData, glMapBufferRange, glUnmapBuffer

Copyright

Copyright © 2012 Khronos Group. 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/.