02-11-2009
Could you put some debug printf statements in your code so that we can see the values of lsize and buffer.
I thought malloc because if buffer is not allocated you cannot store anything there yet if (buffer == NULL) is never executed.
That is somewhat weird but I will try to reproduce it on my system running AIX ver 5.3
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LEARN ABOUT CENTOS
glinvalidatebuffersubdata
GLINVALIDATEBUFFERSU(3G) OpenGL Manual GLINVALIDATEBUFFERSU(3G)
NAME
glInvalidateBufferSubData - invalidate a region of a buffer object's data store
C SPECIFICATION
void glInvalidateBufferSubData(GLuint buffer, GLintptr offset, GLsizeiptr length);
PARAMETERS
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
glInvalidateTexSubImage(),, glInvalidateTexImage(), glInvalidateBufferData(), glInvalidateFramebuffer(), glInvalidateSubFramebuffer().
COPYRIGHT
Copyright (C) 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/.
AUTHORS
opengl.org
opengl.org 06/10/2014 GLINVALIDATEBUFFERSU(3G)