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This reverts commit 93dae6761bc90bbd43b450d2673620ec189b2c7a.
This change was completely broken when the parser uses multiple
strings in a single production. It would be nice if bug fixes could
initially land somewhere other than the stable branch.
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Anything that matched IDENTIFIER was strdup'ed and returned to the
parser. However, almost every case of IDENTIFIER in the parser just
dropped the returned string on the floor. Every swizzle string, every
option string, every use of a variable, etc. leaked memory.
Create a temporary buffer in the parser state (string_dumpster and
dumpster_size). Return strings from the lexer to the parser in the
buffer. Grow the buffer as needed. When the parser needs to keep a
string (i.e., delcaring a new variable), let it make a copy then.
The only leak that valgrind now detects is /occasionally/ the copy of
the program string in gl_program::String is leaked. I'm not seeing
how. :(
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This isn't really tested yet as no drivers actually support this extension.
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Require that GL_{ARB,EXT,NV}_texture_rectangle be supported before
allowing use of RECT texture target.
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As far as I am able to determine via code inspection and using
Valgrind, that should be all of the leaks in the parser.
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This gets basic texturing working. w00t!
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This still needs quite a bit of work, but a bunch of the programs in progs/vp
produce correct results.
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