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Commit Graph

1405 Commits

Author SHA1 Message Date
Ronald S. Bultje
183b1c2268 configure: Check for the math function rint
Add a fallback implementation if it doesn't exist.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-11 10:40:11 +03:00
Ronald S. Bultje
358d854df8 x86/cpu: implement get/set_eflags using intrinsics
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-10 14:33:32 +03:00
Ronald S. Bultje
c0ee695bd7 x86/cpu: implement support for cpuid through intrinsics
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-10 14:33:24 +03:00
Ronald S. Bultje
3f150ffba3 x86/cpu: implement support for xgetbv through intrinsics
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-10 14:33:17 +03:00
Ronald S. Bultje
f80ddd5bf7 lavu: use intrinsics for emms on systems lacking inline asm support
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-10 14:33:09 +03:00
Martin Storsjö
620b1e7e98 mem: Don't abort on av_malloc(0) in debug mode
This makes the behaviour consistent between debug and release mode.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-10 11:37:03 +03:00
Ronald S. Bultje
07b287020c x86/timer: implement an intrinsic-based version for rdtsc (AV_READ_TIME). 2012-07-07 13:35:07 -07:00
Loren Merritt
4d4752366f x86inc: add SPLATB_LOAD, SPLATB_REG, PSHUFLW macros
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-07-05 17:37:11 +02:00
Loren Merritt
2cd1f5cadc x86inc: modify ALIGN to not generate long nops on i586
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-07-05 17:37:11 +02:00
Samuel Pitoiset
983db9b2b4 xtea: Make the count parameter match the documentation
Previously it was interpreted as number of bytes, while the
documentation stated that it was the number of 8 byte blocks.
This makes it behave similarly to the existing AES code.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-05 12:45:18 +03:00
Samuel Pitoiset
e4a7fb3da3 blowfish: Make the count parameter match the documentation
Previously it was interpreted as number of bytes, while the
documentation stated that it was the number of 8 byte blocks.
This makes it behave similarly to the existing AES code.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-05 12:41:57 +03:00
Luca Barbato
f6687bf5f8 xtea: invert branch and loop precedence
Should slightly improve performance depending on the compiler used.
2012-07-05 10:42:00 +02:00
Luca Barbato
669bbedfa8 blowfish: invert branch and loop precedence
Should slightly improve performance depending on the compiler used.
2012-07-05 10:40:13 +02:00
Diego Biurrun
2047e40e6e Clarify Doxygen comment for FF_API_* #defines. 2012-07-04 15:10:10 +02:00
Diego Biurrun
86ab7b0f2f Create version.h headers for libraries that lack them 2012-07-04 15:10:06 +02:00
Samuel Pitoiset
8c14f7a593 Add XTEA encryption support in libavutil
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-04 15:10:57 +03:00
Samuel Pitoiset
bc3dbcc8e5 Add Blowfish encryption support in libavutil
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-04 15:10:57 +03:00
Martin Storsjö
143f1e9203 eval: Add the isinf() function and tests for it
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-04 15:10:56 +03:00
Diego Biurrun
1a068bfefd cosmetics: Consistently use C-style comments with multiple inclusion guards 2012-07-03 17:35:12 +02:00
Reinhard Tartler
22662ca560 attributes: add av_noreturn
Also use it in the declaration of the various exit_program
implementations in avtools.

inspired by a clang-scan report.
2012-07-03 17:26:51 +02:00
Reinhard Tartler
a1641e9540 attributes: drop pointless define guards
the av_-prefixed attributes must not be defined outside of this file
2012-07-03 17:26:51 +02:00
Ronald S. Bultje
ff8f8dfb79 intfloat: Don't use designated initializers in the public headers
intfloat.h is a public header, and is now (since a1245d5ca) included
by mathematics.h, which many external callers include.

This fixes building third party applications that include
mathematics.h in a language that doesn't support designated
initalizers.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-02 14:05:40 +03:00
Martin Storsjö
3893feeccd opt/eval: Include mathematics.h for NAN/INFINITY
These files use NAN/INFINITY but didn't include mathematics.h to get
the fallback definitions if the system lacks the macros.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-01 19:20:11 +03:00
Ronald S. Bultje
a1245d5ca1 mathematics: Don't use division by zero in NAN/INFINITY macros
Some compilers, MSVC among them, don't recognize the divisions by
zero as meaning infinity/nan.

These macros should, according to the standard, expand to constant
expressions, but this shouldn't matter for our usage.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-01 19:06:13 +03:00
Mans Rullgard
889c1ec4cc x86: cpu: clean up check for cpuid instruction support
This adds macros for accessing the EFLAGS register and uses
these instead of coding the entire check in inline asm.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-07-01 12:25:33 +01:00
Mans Rullgard
62634158b7 ARM: generate position independent code to access data symbols
This creates proper position independent code when accessing
data symbols if CONFIG_PIC is set.

References to external symbols should now use the movrelx macro.
Some additional code changes are required since this macro may
need a register to hold the GOT pointer.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-07-01 11:25:06 +01:00
Ronald S. Bultje
4f2c846d96 attributes: Add a definition of av_always_inline for MSVC
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-06-30 16:03:45 +03:00
Ronald S. Bultje
f985113075 random_seed: Only read /dev/*random if we have unistd.h
unistd.h is used for open/read/close, but if this header does not
exist, there's probably no use in trying to open /dev/*random
at all.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-06-29 15:52:07 +03:00
Martin Storsjö
46df708b45 libm: Provide fallback definitions for isnan() and isinf()
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-06-27 14:04:02 +03:00
Mans Rullgard
153335625c libm: provide fallback definition for cbrtf() using powf()
This adds a fallback for cbrtf() using powf(x, 1/3).  Since
powf() with a non-integer exponent requires a non-negative
base, special handling of negative inputs is needed.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-26 15:56:38 +01:00
Ronald S. Bultje
246154a9af log: Include io.h on windows
This is required for isatty, which exists on MSVC and is found by
configure, but is provided by io.h instead of unistd.h.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-06-25 23:28:36 +03:00
Mans Rullgard
963cdf39b4 x86: cpu: whitespace (mostly) cosmetics
This adds whitespace around operators, aligns line continuation
backslashes, and breaks long lines.  Also fixes an ifdef halfway
through a statement.  The one line of duplication this saved is
not worth the ugliness.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-25 16:24:31 +01:00
Ronald S. Bultje
8123e0901f x86: place some inline asm under #if HAVE_INLINE_ASM
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-25 13:23:12 +01:00
Martin Storsjö
145a8096d5 log: Only include unistd.h if configure found it
MSVC has isatty (in io.h), but not unistd.h. (isatty isn't called
at all for windows, since there's a special case block for that.)

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-06-24 12:36:22 +03:00
Diego Biurrun
65345a5a30 x86: Add CPU flag for the i686 cmov instruction 2012-06-23 16:21:50 +02:00
Mans Rullgard
d3d3a32c9d lavu: add av_usleep() function
This function implements a delay using the first available
of the following functions:

- nanosleep()
- usleep()
- Sleep() (Windows)

The conditional #includes in time.c are simplified by including
unistd.h and windows.h whenever they are available rather than
having these lines triggered by specific functions.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-22 17:15:18 +01:00
Diego Biurrun
a5a93fa8f5 cosmetics: do not use full path for local headers 2012-06-22 10:49:40 +02:00
Mans Rullgard
d11baad055 lavu/file: include unistd.h only when available
The unistd.h header is only needed for the close() declaration.
If this header is not available, the close() declaration may be
provided by another header, e.g. io.h.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-21 22:54:31 +01:00
Mans Rullgard
539df61193 log: include unistd.h only when needed
The only symbol this file uses from unistd.h is isatty().  By
including the header only when this function is used, the file
can be built on systems without unistd.h (which presumably also
lack isatty).

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-21 22:53:35 +01:00
Mans Rullgard
dc7e336cae lavf, lavu: version bumps and APIchanges for av_gettime() move
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-21 11:45:28 +01:00
Mans Rullgard
61183b5ab4 av_gettime: support Win32 without gettimeofday()
Based on patch by Ronald S. Bultje.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-20 17:09:03 +01:00
Mans Rullgard
980f81d961 Use av_gettime() in various places
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-20 17:09:03 +01:00
Mans Rullgard
ae0a301668 Move av_gettime() to libavutil
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-20 17:09:03 +01:00
Janne Grunau
a2b186a188 mathematics.h: remove a couple of math defines
While these defines are not defined by the C standard they are
standardized as X/Open System Interfaces Extension. We use the
appropiate _XOPEN_SOURCE define to make them available. They
seem to be available on all FATE configs since the constants
are used in files where mathematics.h is not included.
2012-06-20 15:45:21 +02:00
Mans Rullgard
6501dcfb5e Remove unnecessary inclusions of [sys/]time.h
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-20 11:46:46 +01:00
Ronald S. Bultje
be1a839ca6 mem: add support for _aligned_malloc() as found on Windows
The check uses check_func_header, since this function is
conditionally available depending on the targeted MSVCRT
version.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-06-19 10:08:00 +03:00
Justin Ruggles
82b2df9790 float_dsp: add x86-optimized functions for vector_fmac_scalar() 2012-06-18 18:01:14 -04:00
Justin Ruggles
cb5042d02c float_dsp: Move vector_fmac_scalar() from libavcodec to libavutil 2012-06-18 18:01:14 -04:00
John Stebbins
3971be0eb5 Add Dolby/DPLII downmix support to libavresample
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-06-18 10:55:00 -04:00
Anton Khirnov
b0f0dfc485 Bump lavu minor and add an APIChanges entry for audioconvert functions. 2012-06-10 08:04:01 +02:00