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* rational: add av_inv_q() returning the inverse of an AVRationalMans Rullgard2012-08-05
| | | | | | This allows simplifying a few expressions. Signed-off-by: Mans Rullgard <mans@mansr.com>
* x86: build: replace mmx2 by mmxextDiego Biurrun2012-08-03
| | | | | | | Refactoring mmx2/mmxext YASM code with cpuflags will force renames. So switching to a consistent naming scheme beforehand is sensible. The name "mmxext" is more official and widespread and also the name of the CPU flag, as reported e.g. by the Linux kernel.
* x86: Use consistent 3dnowext function and macro name suffixesDiego Biurrun2012-08-03
| | | | | | Currently there is a wild mix of 3dn2/3dnow2/3dnowext. Switching to "3dnowext", which is a more common name of the CPU flag, as reported e.g. by the Linux kernel, unifies this.
* x86inc: clip num_args to 7 on x86-32.Loren Merritt2012-07-28
| | | | | | | | This allows us to unconditionally set the cglobal num_args parameter to a bigger value, thus making writing yasm code even easier than before. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* x86inc: sync to latest version from x264.Ronald S. Bultje2012-07-28
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* x86: add support for fmaddps fma4 instruction with abstraction to avx/sseJustin Ruggles2012-07-27
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* eval: fix printing of NaN in eval fate test.Ronald S. Bultje2012-07-26
| | | | | This fixes "make fate-eval" on MSVC builds. Without this, the test outputs "-1.#NaN" instead of "nan" on MSVS 2010.
* x86inc: automatically insert vzeroupper for YMM functions.Ronald S. Bultje2012-07-26
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* dsputil: x86: add SHUFFLE_MASK_W macroJason Garrett-Glaser2012-07-22
| | | | Simplifies pshufb masks that operate on words.
* mem: introduce av_malloc_array and av_mallocz_arrayLuca Barbato2012-07-14
| | | | | Both function ease allocating large arrays implementing the overflow check inside it.
* eval: add gt(), gte(), lt() and lte() fate testsJanne Grunau2012-07-14
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* eval: fix swapping of lt() and lte()Max Lazarov2012-07-14
| | | | CC: libav-stable@libav.org
* configure: Check for the math function rintRonald S. Bultje2012-07-11
| | | | | | Add a fallback implementation if it doesn't exist. Signed-off-by: Martin Storsjö <martin@martin.st>
* x86/cpu: implement get/set_eflags using intrinsicsRonald S. Bultje2012-07-10
| | | | | Signed-off-by: Diego Biurrun <diego@biurrun.de> Signed-off-by: Martin Storsjö <martin@martin.st>
* x86/cpu: implement support for cpuid through intrinsicsRonald S. Bultje2012-07-10
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* x86/cpu: implement support for xgetbv through intrinsicsRonald S. Bultje2012-07-10
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* lavu: use intrinsics for emms on systems lacking inline asm supportRonald S. Bultje2012-07-10
| | | | | Signed-off-by: Diego Biurrun <diego@biurrun.de> Signed-off-by: Martin Storsjö <martin@martin.st>
* mem: Don't abort on av_malloc(0) in debug modeMartin Storsjö2012-07-10
| | | | | | This makes the behaviour consistent between debug and release mode. Signed-off-by: Martin Storsjö <martin@martin.st>
* x86/timer: implement an intrinsic-based version for rdtsc (AV_READ_TIME).Ronald S. Bultje2012-07-07
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* x86inc: add SPLATB_LOAD, SPLATB_REG, PSHUFLW macrosLoren Merritt2012-07-05
| | | | Signed-off-by: Diego Biurrun <diego@biurrun.de>
* x86inc: modify ALIGN to not generate long nops on i586Loren Merritt2012-07-05
| | | | Signed-off-by: Diego Biurrun <diego@biurrun.de>
* xtea: Make the count parameter match the documentationSamuel Pitoiset2012-07-05
| | | | | | | | 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>
* blowfish: Make the count parameter match the documentationSamuel Pitoiset2012-07-05
| | | | | | | | 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>
* xtea: invert branch and loop precedenceLuca Barbato2012-07-05
| | | | Should slightly improve performance depending on the compiler used.
* blowfish: invert branch and loop precedenceLuca Barbato2012-07-05
| | | | Should slightly improve performance depending on the compiler used.
* Clarify Doxygen comment for FF_API_* #defines.Diego Biurrun2012-07-04
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* Create version.h headers for libraries that lack themDiego Biurrun2012-07-04
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* Add XTEA encryption support in libavutilSamuel Pitoiset2012-07-04
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* Add Blowfish encryption support in libavutilSamuel Pitoiset2012-07-04
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* eval: Add the isinf() function and tests for itMartin Storsjö2012-07-04
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* cosmetics: Consistently use C-style comments with multiple inclusion guardsDiego Biurrun2012-07-03
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* attributes: add av_noreturnReinhard Tartler2012-07-03
| | | | | | | Also use it in the declaration of the various exit_program implementations in avtools. inspired by a clang-scan report.
* attributes: drop pointless define guardsReinhard Tartler2012-07-03
| | | | the av_-prefixed attributes must not be defined outside of this file
* intfloat: Don't use designated initializers in the public headersRonald S. Bultje2012-07-02
| | | | | | | | | | | 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>
* opt/eval: Include mathematics.h for NAN/INFINITYMartin Storsjö2012-07-01
| | | | | | | 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>
* mathematics: Don't use division by zero in NAN/INFINITY macrosRonald S. Bultje2012-07-01
| | | | | | | | | | 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>
* x86: cpu: clean up check for cpuid instruction supportMans Rullgard2012-07-01
| | | | | | | 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>
* ARM: generate position independent code to access data symbolsMans Rullgard2012-07-01
| | | | | | | | | | | 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>
* attributes: Add a definition of av_always_inline for MSVCRonald S. Bultje2012-06-30
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* random_seed: Only read /dev/*random if we have unistd.hRonald S. Bultje2012-06-29
| | | | | | | | 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>
* libm: Provide fallback definitions for isnan() and isinf()Martin Storsjö2012-06-27
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* libm: provide fallback definition for cbrtf() using powf()Mans Rullgard2012-06-26
| | | | | | | | 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>
* log: Include io.h on windowsRonald S. Bultje2012-06-25
| | | | | | | 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>
* x86: cpu: whitespace (mostly) cosmeticsMans Rullgard2012-06-25
| | | | | | | | | 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>
* x86: place some inline asm under #if HAVE_INLINE_ASMRonald S. Bultje2012-06-25
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* log: Only include unistd.h if configure found itMartin Storsjö2012-06-24
| | | | | | | 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>
* x86: Add CPU flag for the i686 cmov instructionDiego Biurrun2012-06-23
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* lavu: add av_usleep() functionMans Rullgard2012-06-22
| | | | | | | | | | | | | | | 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>
* cosmetics: do not use full path for local headersDiego Biurrun2012-06-22
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* lavu/file: include unistd.h only when availableMans Rullgard2012-06-21
| | | | | | | | 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>
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