Merging upstream version 125.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 78 deletions

diff --git a/media/kiss_fft/README.simd b/media/kiss_fft/README.simd
deleted file mode 100644
index b0fdac5506..0000000000
--- a/media/kiss_fft/README.simd
+++ /dev/null
@@ -1,78 +0,0 @@
-If you are reading this, it means you think you may be interested in using the SIMD extensions in kissfft 
-to do 4 *separate* FFTs at once.
-
-Beware! Beyond here there be dragons!
-
-This API is not easy to use, is not well documented, and breaks the KISS principle.  
-
-
-Still reading? Okay, you may get rewarded for your patience with a considerable speedup 
-(2-3x) on intel x86 machines with SSE if you are willing to jump through some hoops.
-
-The basic idea is to use the packed 4 float __m128 data type as a scalar element.  
-This means that the format is pretty convoluted. It performs 4 FFTs per fft call on signals A,B,C,D.
-
-For complex data, the data is interlaced as follows:
-rA0,rB0,rC0,rD0,      iA0,iB0,iC0,iD0,   rA1,rB1,rC1,rD1, iA1,iB1,iC1,iD1 ...
-where "rA0" is the real part of the zeroth sample for signal A
-
-Real-only data is laid out:
-rA0,rB0,rC0,rD0,     rA1,rB1,rC1,rD1,      ... 
-
-Compile with gcc flags something like
--O3 -mpreferred-stack-boundary=4  -DUSE_SIMD=1 -msse 
-
-Be aware of SIMD alignment.  This is the most likely cause of segfaults.  
-The code within kissfft uses scratch variables on the stack.  
-With SIMD, these must have addresses on 16 byte boundaries.  
-Search on "SIMD alignment" for more info.
-
-
-
-Robin at Divide Concept was kind enough to share his code for formatting to/from the SIMD kissfft.  
-I have not run it -- use it at your own risk.  It appears to do 4xN and Nx4 transpositions 
-(out of place).
-
-void SSETools::pack128(float* target, float* source, unsigned long size128)
-{
-   __m128* pDest = (__m128*)target;
-   __m128* pDestEnd = pDest+size128;
-   float* source0=source;
-   float* source1=source0+size128;
-   float* source2=source1+size128;
-   float* source3=source2+size128;
-
-   while(pDest<pDestEnd)
-   {
-       *pDest=_mm_set_ps(*source3,*source2,*source1,*source0);
-       source0++;
-       source1++;
-       source2++;
-       source3++;
-       pDest++;
-   }
-}
-
-void SSETools::unpack128(float* target, float* source, unsigned long size128)
-{
-
-   float* pSrc = source;
-   float* pSrcEnd = pSrc+size128*4;
-   float* target0=target;
-   float* target1=target0+size128;
-   float* target2=target1+size128;
-   float* target3=target2+size128;
-
-   while(pSrc<pSrcEnd)
-   {
-       *target0=pSrc[0];
-       *target1=pSrc[1];
-       *target2=pSrc[2];
-       *target3=pSrc[3];
-       target0++;
-       target1++;
-       target2++;
-       target3++;
-       pSrc+=4;
-   }
-}