ffmpeg/libavcodec/ppc/dsputil_ppc.c

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/*
* Copyright (c) 2002 Brian Foley
* Copyright (c) 2002 Dieter Shirley
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "../dsputil.h"
#ifdef HAVE_ALTIVEC
#include "dsputil_altivec.h"
#endif
int mm_flags = 0;
int mm_support(void)
{
int result = 0;
#if HAVE_ALTIVEC
if (has_altivec()) {
result |= MM_ALTIVEC;
}
#endif /* result */
return result;
}
void dsputil_init_ppc(DSPContext* c, unsigned mask)
{
// Common optimisations whether Altivec or not
// ... pending ...
#if HAVE_ALTIVEC
if (has_altivec()) {
mm_flags |= MM_ALTIVEC;
// Altivec specific optimisations
c->pix_abs16x16_x2 = pix_abs16x16_x2_altivec;
c->pix_abs16x16_y2 = pix_abs16x16_y2_altivec;
c->pix_abs16x16_xy2 = pix_abs16x16_xy2_altivec;
c->pix_abs16x16 = pix_abs16x16_altivec;
c->pix_abs8x8 = pix_abs8x8_altivec;
c->sad[0]= sad16x16_altivec;
c->sad[1]= sad8x8_altivec;
c->pix_norm1 = pix_norm1_altivec;
c->sse[1]= sse8_altivec;
c->sse[0]= sse16_altivec;
c->pix_sum = pix_sum_altivec;
c->diff_pixels = diff_pixels_altivec;
c->get_pixels = get_pixels_altivec;
// next one disabled as it it untested.
#if 0
c->add_bytes= add_bytes_altivec;
#endif
c->gmc1 = gmc1_altivec;
} else
#endif
{
// Non-AltiVec PPC optimisations
// ... pending ...
}
}