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authorDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2006-12-02 01:19:48 +0000
committerDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2006-12-02 01:19:48 +0000
commit0ea721f7ce81357bc4ec6eea609cd50482c3d15b (patch)
tree25a0871cb3c06f9716acf9c204192d548f214048 /src/libffmpeg/libavcodec/alpha/mpegvideo_alpha.c
parentd8ec380876e7f697ba609546d61757ab3f2d8715 (diff)
downloadxine-lib-0ea721f7ce81357bc4ec6eea609cd50482c3d15b.tar.gz
xine-lib-0ea721f7ce81357bc4ec6eea609cd50482c3d15b.tar.bz2
Start working on a branch where FFmpeg is not copied, patched and carved to be built with automake but instead imported inline and built using its own build system. This is an import of a slightly modified FFmpeg current tree. xine-lib builds, install and run fine with it, but there are of course plenty of things that needs to be fixed before it can even be considered for a 1.2.x series. Work will continue in the next days of course.
CVS patchset: 8397 CVS date: 2006/12/02 01:19:48
Diffstat (limited to 'src/libffmpeg/libavcodec/alpha/mpegvideo_alpha.c')
-rw-r--r--src/libffmpeg/libavcodec/alpha/mpegvideo_alpha.c145
1 files changed, 0 insertions, 145 deletions
diff --git a/src/libffmpeg/libavcodec/alpha/mpegvideo_alpha.c b/src/libffmpeg/libavcodec/alpha/mpegvideo_alpha.c
deleted file mode 100644
index 4c512451e..000000000
--- a/src/libffmpeg/libavcodec/alpha/mpegvideo_alpha.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * Alpha optimized DSP utils
- * Copyright (c) 2002 Falk Hueffner <falk@debian.org>
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "asm.h"
-#include "../dsputil.h"
-#include "../mpegvideo.h"
-
-static void dct_unquantize_h263_intra_axp(MpegEncContext *s, DCTELEM *block,
- int n, int qscale)
-{
- int i, n_coeffs;
- uint64_t qmul, qadd;
- uint64_t correction;
- DCTELEM *orig_block = block;
- DCTELEM block0; /* might not be used uninitialized */
-
- qadd = WORD_VEC((qscale - 1) | 1);
- qmul = qscale << 1;
- /* This mask kills spill from negative subwords to the next subword. */
- correction = WORD_VEC((qmul - 1) + 1); /* multiplication / addition */
-
- if (!s->h263_aic) {
- if (n < 4)
- block0 = block[0] * s->y_dc_scale;
- else
- block0 = block[0] * s->c_dc_scale;
- } else {
- qadd = 0;
- }
- n_coeffs = 63; // does not always use zigzag table
-
- for(i = 0; i <= n_coeffs; block += 4, i += 4) {
- uint64_t levels, negmask, zeros, add;
-
- 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);
-
- /* Negate qadd for negative levels. */
- add = qadd ^ negmask;
- add += WORD_VEC(0x0001) & negmask;
- /* Set qadd to 0 for levels == 0. */
- add = zap(add, zeros);
-
- levels += add;
-
- stq(levels, block);
- }
-
- if (s->mb_intra && !s->h263_aic)
- orig_block[0] = block0;
-}
-
-static void dct_unquantize_h263_inter_axp(MpegEncContext *s, DCTELEM *block,
- int n, int qscale)
-{
- int i, n_coeffs;
- uint64_t qmul, qadd;
- uint64_t correction;
-
- qadd = WORD_VEC((qscale - 1) | 1);
- qmul = qscale << 1;
- /* This mask kills spill from negative subwords to the next subword. */
- correction = WORD_VEC((qmul - 1) + 1); /* multiplication / addition */
-
- n_coeffs = s->intra_scantable.raster_end[s->block_last_index[n]];
-
- for(i = 0; i <= n_coeffs; block += 4, i += 4) {
- uint64_t levels, negmask, zeros, add;
-
- 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);
-
- /* Negate qadd for negative levels. */
- add = qadd ^ negmask;
- add += WORD_VEC(0x0001) & negmask;
- /* Set qadd to 0 for levels == 0. */
- add = zap(add, zeros);
-
- levels += add;
-
- stq(levels, block);
- }
-}
-
-void 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;
-}