Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This way, the special IDCT permutations are no longer needed. Bfin code
is disabled until someone updates it. This is similar to how H264 does
it, and removes the dsputil dependency imposed by the scantable code.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The non-intra-pcm branch in hl_decode_mb (simple, 8bpp) goes from 700
to 672 cycles, and the complete loop of decode_mb_cabac and hl_decode_mb
(in the decode_slice loop) goes from 1759 to 1733 cycles on the clip
tested (cathedral), i.e. almost 30 cycles per mb faster.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This avoids SIMD-optimized functions having to sign-extend their
line size argument manually to be able to do pointer arithmetic.

The sh4 optimizations are removed, because the code is
100% identical to the C code, so it is unlikely to
provide any real practical benefit.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

It does not help as an abstraction and adds dsputil dependencies.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Now, nellymoserenc and aacenc no longer depends on dsputil. Independent
of this patch, wmaprodec also does not depend on dsputil, so I removed
it from there also.

This saves one instruction in the x86-64 assembly.

Also fixes compilation with AltiVec disabled.

This fixes build failures on ppc machines with a compiler that
supports -Werror=implicit-function-declaration.
Signed-off-by: Martin Storsjö <martin@martin.st>

Conveniently (together with Justin's earlier patches), this makes
our vorbis decoder entirely independent of dsputil.

This is identical to what e.g. vp8 does, and prevents the function call
overhead (plus dependency on dsputil for this particular function).

Arm asm updated by Janne Grunau <janne-libav@jannau.net>.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

These are all part of splited out dsp utils from FFmpeg
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Move some functions from dsputil. The idea is that videodsp contains
functions that are useful for a large and varied set of video decoders.
Currently, it contains emulated_edge_mc() and prefetch().
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This removes warnings about strict aliasing violations.
Signed-off-by: Mans Rullgard <mans@mansr.com>

The third argument of OP_U8_ALTIVEC is evaluated at most once so
there is no need for a potentially unused temporary variable.
Signed-off-by: Mans Rullgard <mans@mansr.com>

The vec_splat() intrinsic requires a constant argument for the
element number, and the code relies on the compiler unrolling
the loop to provide this.  Manually unrolling the loop avoids
this reliance and works with all compilers.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Second parameter to vec_splat must be a literal, not a variable
value.  Therefore the second nested for-loop in
float_to_int16_stride_altivec had to be unrolled.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Mans Rullgard <mans@mansr.com>

This moves all VP3-specific function pointers from dsputil to a
new vp3dsp context.  There is no reason to ever use the VP3 IDCT
where an MPEG2 IDCT is expected or vice versa.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Move vector_fmul() from DSPContext to AVFloatDSPContext.

This will allow for easier implementation of Altivec functions in libraries
other than libavcodec.