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significantly speeds up file generation.
the goal of this change is to convert rtcd.sh to perl as directly as
possible to allow for simple comparison. future changes can make it more
perl-like.
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Linux
[CREATE] vpx_scale_rtcd.h
real 0m0.485s -> 0m0.022s
[CREATE] vp8_rtcd.h
real 0m4.619s -> 0m0.060s
[CREATE] vp9_rtcd.h
real 0m10.102s -> 0m0.087s
Windows
[CREATE] vpx_scale_rtcd.h
real 0m8.360s -> 0m0.080s
[CREATE] vp8_rtcd.h
real 1m8.083s -> 0m0.160s
[CREATE] vp9_rtcd.h
real 2m6.489s -> 0m0.233s
Change-Id: Idfb71188206c91237d6a3c3a81dfe00d103f11ee
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this will aid in output comparison with other generation systems
Change-Id: Ifb66321e45ab9fdd9eaeb5e0ea8b3d0632efe7ce
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Change-Id: Ifb30518555402eb473c3fde81bc860fbe17851dd
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Change-Id: Idc03f3fca4bf2d0afd33631ea1d3caf8fc34ec29
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Change-Id: I401536778e3c68ba2b3ae3955c689d005e1f1d59
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Adopted again to shepherd through system.
Change-Id: If1b742618a95a2198ae2e30eec4b53ad1f7353e5
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prior numbers were removed resulting in the same include guard for
vp[89]_rtcd
Change-Id: If2741e5b0cbdda7390c20e865e9f05992caff93e
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These aren't required to be supported by sh.
Change-Id: I54d641a2377531e0b320676d29d4ecdeee82288a
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Change-Id: I816d903e36605db2af691ccea9e68d7390942baa
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Signed-off-by: Raghu Gandham <raghu@mips.com>
Change-Id: I3a8bca425cd3dab746a6328c8fc8843c8e87aea6
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Avoid a pthreads dependency via pthread_once() when compiled with
--disable-multithread.
In addition, this synchronization is disabled for Win32 as well, even
though we can be sure that the required primatives exist, so that the
requirements on the application when built with --disable-multithread
are consistent across platforms.
Users using libvpx built with --disable-multithread in a multithreaded
context should provide their own synchronization. Updated the
documentation to vpx_codec_enc_init_ver() and vpx_codec_dec_init_ver()
to note this requirement. Moved the RTCD initialization call to match
this description, as previously it didn't happen until the first
frame.
Change-Id: Id576f6bce2758362188278d3085051c218a56d4a
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Built in echo in 'sh' on OS X does not support -n (exclude trailing
newline). It's not necessary so just leave it off. Fixes issue 390.
Build include guard using 'symbol' so that it is more likely to be
unique.
Change-Id: I4bc6aa1fc5e02228f71c200214b5ee4a16d56b83
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This is a proof of concept RTCD implementation to replace the current
system of nested includes, prototypes, INVOKE macros, etc. Currently
only the decoder specific functions are implemented in the new system.
Additional functions will be added in subsequent commits.
Overview:
RTCD "functions" are implemented as either a global function pointer
or a macro (when only one eligible specialization available).
Functions which have RTCD specializations are listed using a simple
DSL identifying the function's base name, its prototype, and the
architecture extensions that specializations are available for.
Advantages over the old system:
- No INVOKE macros. A call to an RTCD function looks like an ordinary
function call.
- No need to pass vtables around.
- If there is only one eligible function to call, the function is
called directly, rather than indirecting through a function pointer.
- Supports the notion of "required" extensions, so in combination with
the above, on x86_64 if the best function available is sse2 or lower
it will be called directly, since all x86_64 platforms implement
sse2.
- Elides all references to functions which will never be called, which
could reduce binary size. For example if sse2 is required and there
are both mmx and sse2 implementations of a certain function, the
code will have no link time references to the mmx code.
- Significantly easier to add a new function, just one file to edit.
Disadvantages:
- Requires global writable data (though this is not a new requirement)
- 1 new generated source file.
Change-Id: Iae6edab65315f79c168485c96872641c5aa09d55
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