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authorDiego Biurrun <diego@biurrun.de>2013-11-13 23:39:56 +0400
committerDiego Biurrun <diego@biurrun.de>2013-11-13 23:45:49 +0400
commitc7f7bfc9e3a3150ba72bc34366c13fb2210c66ac (patch)
tree4857540a20b55136121e14403a9cb86d4369955d /libavcodec/alpha/mpegvideo_alpha.c
parent16381923fb7b9087ce559fb1cd3594469ac6788b (diff)
Remove all Alpha architecture optimizations
Alpha has been end-of-lifed and no more test machines are available.
Diffstat (limited to 'libavcodec/alpha/mpegvideo_alpha.c')
-rw-r--r--libavcodec/alpha/mpegvideo_alpha.c110
1 files changed, 0 insertions, 110 deletions
diff --git a/libavcodec/alpha/mpegvideo_alpha.c b/libavcodec/alpha/mpegvideo_alpha.c
deleted file mode 100644
index 5557159379..0000000000
--- a/libavcodec/alpha/mpegvideo_alpha.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Alpha optimized DSP utils
- * Copyright (c) 2002 Falk Hueffner <falk@debian.org>
- *
- * This file is part of Libav.
- *
- * Libav 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 2.1 of the License, or (at your option) any later version.
- *
- * Libav 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 Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "libavutil/attributes.h"
-#include "libavcodec/mpegvideo.h"
-#include "asm.h"
-
-static void dct_unquantize_h263_axp(int16_t *block, int n_coeffs,
- uint64_t qscale, uint64_t qadd)
-{
- uint64_t qmul = qscale << 1;
- uint64_t correction = WORD_VEC(qmul * 255 >> 8);
- int i;
-
- qadd = WORD_VEC(qadd);
-
- for(i = 0; i <= n_coeffs; block += 4, i += 4) {
- uint64_t levels, negmask, zeros, add, sub;
-
- levels = ldq(block);
- if (levels == 0)
- continue;
-
-#ifdef __alpha_max__
- /* I don't think the speed difference justifies runtime
- detection. */
- negmask = maxsw4(levels, -1); /* negative -> ffff (-1) */
- negmask = minsw4(negmask, 0); /* positive -> 0000 (0) */
-#else
- negmask = cmpbge(WORD_VEC(0x7fff), levels);
- negmask &= (negmask >> 1) | (1 << 7);
- negmask = zap(-1, negmask);
-#endif
-
- zeros = cmpbge(0, levels);
- zeros &= zeros >> 1;
- /* zeros |= zeros << 1 is not needed since qadd <= 255, so
- zapping the lower byte suffices. */
-
- levels *= qmul;
- levels -= correction & (negmask << 16);
-
- add = qadd & ~negmask;
- sub = qadd & negmask;
- /* Set qadd to 0 for levels == 0. */
- add = zap(add, zeros);
- levels += add;
- levels -= sub;
-
- stq(levels, block);
- }
-}
-
-static void dct_unquantize_h263_intra_axp(MpegEncContext *s, int16_t *block,
- int n, int qscale)
-{
- int n_coeffs;
- uint64_t qadd;
- int16_t block0 = block[0];
-
- if (!s->h263_aic) {
- if (n < 4)
- block0 *= s->y_dc_scale;
- else
- block0 *= s->c_dc_scale;
- qadd = (qscale - 1) | 1;
- } else {
- qadd = 0;
- }
-
- if(s->ac_pred)
- n_coeffs = 63;
- else
- n_coeffs = s->inter_scantable.raster_end[s->block_last_index[n]];
-
- dct_unquantize_h263_axp(block, n_coeffs, qscale, qadd);
-
- block[0] = block0;
-}
-
-static void dct_unquantize_h263_inter_axp(MpegEncContext *s, int16_t *block,
- int n, int qscale)
-{
- int n_coeffs = s->inter_scantable.raster_end[s->block_last_index[n]];
- dct_unquantize_h263_axp(block, n_coeffs, qscale, (qscale - 1) | 1);
-}
-
-av_cold void ff_MPV_common_init_axp(MpegEncContext *s)
-{
- s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_axp;
- s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_axp;
-}