On Wed, Oct 01, 2014 at 05:14:38PM -0300, James Almer wrote:
> This makes the addition of arch optimized functions easier.
>
> Signed-off-by: James Almer <jamr...@gmail.com>
> ---
> libavcodec/Makefile | 2 +-
> libavcodec/jpeg2000dec.c | 71 +++++++++--------------------------
> libavcodec/jpeg2000dsp.c | 98
> ++++++++++++++++++++++++++++++++++++++++++++++++
> libavcodec/jpeg2000dsp.h | 35 +++++++++++++++++
> libavcodec/jpeg2000dwt.h | 3 +-
> 5 files changed, 153 insertions(+), 56 deletions(-)
> create mode 100644 libavcodec/jpeg2000dsp.c
> create mode 100644 libavcodec/jpeg2000dsp.h
[...]
> +static void mct_decode97_float(void *_src0, void *_src1, void *_src2, int
> csize)
> +{
> + float *src0 = _src0, *src1 = _src1, *src2 = _src2;
> + float i0f, i1f, i2f;
> + int i;
> +
> + for (i = 0; i < csize; i++) {
> + i0f = *src0 + (f_ict_params[0] * *src2);
> + i1f = *src0 - (f_ict_params[1] * *src1)
> + - (f_ict_params[2] * *src2);
> + i2f = *src0 + (f_ict_params[3] * *src1);
> + *src0++ = i0f;
> + *src1++ = i1f;
> + *src2++ = i2f;
> + }
> +}
> +
> +static void mct_decode97_int(void *_src0, void *_src1, void *_src2, int
> csize)
> +{
> + int32_t *src0 = _src0, *src1 = _src1, *src2 = _src2;
> + int32_t i0, i1, i2;
> + int i;
> +
> + for (i = 0; i < csize; i++) {
> + i0 = *src0 + (((i_ict_params[0] * *src2) + (1 << 15)) >> 16);
> + i1 = *src0 - (((i_ict_params[1] * *src1) + (1 << 15)) >> 16)
> + - (((i_ict_params[2] * *src2) + (1 << 15)) >> 16);
> + i2 = *src0 + (((i_ict_params[3] * *src1) + (1 << 15)) >> 16);
> + *src0++ = i0;
> + *src1++ = i1;
> + *src2++ = i2;
> + }
> +}
> +
> +static void mct_decode53(void *_src0, void *_src1, void *_src2, int csize)the function names are not good the code is not related to the 5/3 and 9/7 wavelets [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB it is not once nor twice but times without number that the same ideas make their appearance in the world. -- Aristotle
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