I want to add an error check to glTexImage2D(), but I don't know where
to put it.
Basically, what I want to do is check that the given width and height
dimensions are of the form:
2^k +2(border) : for some positive integer k
and throw an GL_INVALID_VALUE error if one of them fails the check, as
per the description in the OpenGL Reference Manual (4th ed, p.546).
I want to make the check in one place, before dispatching to the driver
specific function, which I think is done by CALL_TexImage2D() (is this
right?).
The file dlist.c has two functions that call CALL_TexImage2D():
save_TexImage2D()
execute_list()
Do I have to put my check before each of these calls, or is there
somewhere higher up the function call stack that would be more
appropriate?
James
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