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Commit Graph

8 Commits

Author SHA1 Message Date
James Cowgill
157d6f0d5b mips: port optimizations to mips n64
This mainly consists of replacing all the pointer arithmatic 'addiu'
instructions with PTR_ADDIU which will handle the differences in pointer
sizes when compiled on 64 bit mips systems.

The header asmdefs.h contains the PTR_ macros which expend to the correct mips
instructions to manipulate registers containing pointers.

Signed-off-by: James Cowgill <james410@cowgill.org.uk>
Reviewed-by: Nedeljko Babic <Nedeljko.Babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-06 14:37:44 +01:00
James Cowgill
d6f66aec50 mips/fft: remove some useless assembly
Remove some assembly that the compiler can easily handle optimally on its own.
GCC produces almost identical assembly.

Signed-off-by: James Cowgill <james410@cowgill.org.uk>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-02-26 15:46:46 +01:00
Reimar Döffinger
1654514ab0 fft: add ff_ prefix to some global arrays.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2014-08-31 10:25:36 +02:00
Nedeljko Babic
18d7074b4e libavcodec: Implementation of 32 bit fixed point FFT
Iterative implementation of 32 bit fixed point split-radix FFT.
Max FFT that can be calculated currently is 2^12.

Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-04 14:01:41 +02:00
Nedeljko Babic
271f95940b libavcodec/mips: fix for mips optimized fp fft with hard coded tables disabled
Floating point FFT (nips optimized) breaks when hard coded tables are
not enabled because MIPS optimization of floating point FFT uses only
ff_init_ff_cos_tabs(16) which is not enabled by default in that case.

This patch is fixing it.

Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 13:48:05 +01:00
Nedeljko Babic
d23aefa498 mips: inline assembly clobber list polishing
List of clobbered registers fixed and added where it is lacking.

Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-19 16:51:35 +01:00
Nedeljko Babic
304a1ed1e8 mips: Add dependencies on HAVE_INLINE_ASM
Add dependencies on HAVE_INLINE_ASM for files and parts of code
 where it is necessary.

Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Reviewed-by: Vitor Sessak <vitor1001@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-10 19:55:54 +01:00
Nedeljko Babic
b3fdfc8c4e Optimization of AC3 floating point decoder for MIPS
FFT in MIPS implementation is working iteratively instead
 of "recursively" calling functions for smaller FFT sizes.
Some of DSP and format convert utils functions are also optimized.

Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Reviewed-by: Vitor Sessak <vitor1001@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 20:09:56 +02:00