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-rw-r--r--src/libmpeg2new/libmpeg2/idct_alpha.c379
1 files changed, 0 insertions, 379 deletions
diff --git a/src/libmpeg2new/libmpeg2/idct_alpha.c b/src/libmpeg2new/libmpeg2/idct_alpha.c
deleted file mode 100644
index 8f9beaf22..000000000
--- a/src/libmpeg2new/libmpeg2/idct_alpha.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
- * idct_alpha.c
- * Copyright (C) 2002-2003 Falk Hueffner <falk@debian.org>
- * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
- * See http://libmpeg2.sourceforge.net/ for updates.
- *
- * mpeg2dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * mpeg2dec 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "config.h"
-
-#ifdef ARCH_ALPHA
-
-#include <stdlib.h>
-#include <inttypes.h>
-
-#include "mpeg2.h"
-#include "attributes.h"
-#include "mpeg2_internal.h"
-#include "alpha_asm.h"
-
-#define W1 2841 /* 2048 * sqrt (2) * cos (1 * pi / 16) */
-#define W2 2676 /* 2048 * sqrt (2) * cos (2 * pi / 16) */
-#define W3 2408 /* 2048 * sqrt (2) * cos (3 * pi / 16) */
-#define W5 1609 /* 2048 * sqrt (2) * cos (5 * pi / 16) */
-#define W6 1108 /* 2048 * sqrt (2) * cos (6 * pi / 16) */
-#define W7 565 /* 2048 * sqrt (2) * cos (7 * pi / 16) */
-
-extern uint8_t mpeg2_clip[3840 * 2 + 256];
-#define CLIP(i) ((mpeg2_clip + 3840)[i])
-
-#if 0
-#define BUTTERFLY(t0,t1,W0,W1,d0,d1) \
-do { \
- t0 = W0 * d0 + W1 * d1; \
- t1 = W0 * d1 - W1 * d0; \
-} while (0)
-#else
-#define BUTTERFLY(t0,t1,W0,W1,d0,d1) \
-do { \
- int_fast32_t tmp = W0 * (d0 + d1); \
- t0 = tmp + (W1 - W0) * d1; \
- t1 = tmp - (W1 + W0) * d0; \
-} while (0)
-#endif
-
-static void inline idct_row (int16_t * const block)
-{
- uint64_t l, r;
- int_fast32_t d0, d1, d2, d3;
- int_fast32_t a0, a1, a2, a3, b0, b1, b2, b3;
- int_fast32_t t0, t1, t2, t3;
-
- l = ldq (block);
- r = ldq (block + 4);
-
- /* shortcut */
- if (likely (!((l & ~0xffffUL) | r))) {
- uint64_t tmp = (uint16_t) (l >> 1);
- tmp |= tmp << 16;
- tmp |= tmp << 32;
- ((int32_t *)block)[0] = tmp;
- ((int32_t *)block)[1] = tmp;
- ((int32_t *)block)[2] = tmp;
- ((int32_t *)block)[3] = tmp;
- return;
- }
-
- d0 = (sextw (l) << 11) + 2048;
- d1 = sextw (extwl (l, 2));
- d2 = sextw (extwl (l, 4)) << 11;
- d3 = sextw (extwl (l, 6));
- t0 = d0 + d2;
- t1 = d0 - d2;
- BUTTERFLY (t2, t3, W6, W2, d3, d1);
- a0 = t0 + t2;
- a1 = t1 + t3;
- a2 = t1 - t3;
- a3 = t0 - t2;
-
- d0 = sextw (r);
- d1 = sextw (extwl (r, 2));
- d2 = sextw (extwl (r, 4));
- d3 = sextw (extwl (r, 6));
- BUTTERFLY (t0, t1, W7, W1, d3, d0);
- BUTTERFLY (t2, t3, W3, W5, d1, d2);
- b0 = t0 + t2;
- b3 = t1 + t3;
- t0 -= t2;
- t1 -= t3;
- b1 = ((t0 + t1) >> 8) * 181;
- b2 = ((t0 - t1) >> 8) * 181;
-
- block[0] = (a0 + b0) >> 12;
- block[1] = (a1 + b1) >> 12;
- block[2] = (a2 + b2) >> 12;
- block[3] = (a3 + b3) >> 12;
- block[4] = (a3 - b3) >> 12;
- block[5] = (a2 - b2) >> 12;
- block[6] = (a1 - b1) >> 12;
- block[7] = (a0 - b0) >> 12;
-}
-
-static void inline idct_col (int16_t * const block)
-{
- int_fast32_t d0, d1, d2, d3;
- int_fast32_t a0, a1, a2, a3, b0, b1, b2, b3;
- int_fast32_t t0, t1, t2, t3;
-
- d0 = (block[8*0] << 11) + 65536;
- d1 = block[8*1];
- d2 = block[8*2] << 11;
- d3 = block[8*3];
- t0 = d0 + d2;
- t1 = d0 - d2;
- BUTTERFLY (t2, t3, W6, W2, d3, d1);
- a0 = t0 + t2;
- a1 = t1 + t3;
- a2 = t1 - t3;
- a3 = t0 - t2;
-
- d0 = block[8*4];
- d1 = block[8*5];
- d2 = block[8*6];
- d3 = block[8*7];
- BUTTERFLY (t0, t1, W7, W1, d3, d0);
- BUTTERFLY (t2, t3, W3, W5, d1, d2);
- b0 = t0 + t2;
- b3 = t1 + t3;
- t0 -= t2;
- t1 -= t3;
- b1 = ((t0 + t1) >> 8) * 181;
- b2 = ((t0 - t1) >> 8) * 181;
-
- block[8*0] = (a0 + b0) >> 17;
- block[8*1] = (a1 + b1) >> 17;
- block[8*2] = (a2 + b2) >> 17;
- block[8*3] = (a3 + b3) >> 17;
- block[8*4] = (a3 - b3) >> 17;
- block[8*5] = (a2 - b2) >> 17;
- block[8*6] = (a1 - b1) >> 17;
- block[8*7] = (a0 - b0) >> 17;
-}
-
-void mpeg2_idct_copy_mvi (int16_t * block, uint8_t * dest, const int stride)
-{
- uint64_t clampmask;
- int i;
-
- for (i = 0; i < 8; i++)
- idct_row (block + 8 * i);
-
- for (i = 0; i < 8; i++)
- idct_col (block + i);
-
- clampmask = zap (-1, 0xaa); /* 0x00ff00ff00ff00ff */
- do {
- uint64_t shorts0, shorts1;
-
- shorts0 = ldq (block);
- shorts0 = maxsw4 (shorts0, 0);
- shorts0 = minsw4 (shorts0, clampmask);
- stl (pkwb (shorts0), dest);
-
- shorts1 = ldq (block + 4);
- shorts1 = maxsw4 (shorts1, 0);
- shorts1 = minsw4 (shorts1, clampmask);
- stl (pkwb (shorts1), dest + 4);
-
- stq (0, block);
- stq (0, block + 4);
-
- dest += stride;
- block += 8;
- } while (--i);
-}
-
-void mpeg2_idct_add_mvi (const int last, int16_t * block,
- uint8_t * dest, const int stride)
-{
- uint64_t clampmask;
- uint64_t signmask;
- int i;
-
- if (last != 129 || (block[0] & (7 << 4)) == (4 << 4)) {
- for (i = 0; i < 8; i++)
- idct_row (block + 8 * i);
- for (i = 0; i < 8; i++)
- idct_col (block + i);
- clampmask = zap (-1, 0xaa); /* 0x00ff00ff00ff00ff */
- signmask = zap (-1, 0x33);
- signmask ^= signmask >> 1; /* 0x8000800080008000 */
-
- do {
- uint64_t shorts0, pix0, signs0;
- uint64_t shorts1, pix1, signs1;
-
- shorts0 = ldq (block);
- shorts1 = ldq (block + 4);
-
- pix0 = unpkbw (ldl (dest));
- /* signed subword add (MMX paddw). */
- signs0 = shorts0 & signmask;
- shorts0 &= ~signmask;
- shorts0 += pix0;
- shorts0 ^= signs0;
- /* clamp. */
- shorts0 = maxsw4 (shorts0, 0);
- shorts0 = minsw4 (shorts0, clampmask);
-
- /* next 4. */
- pix1 = unpkbw (ldl (dest + 4));
- signs1 = shorts1 & signmask;
- shorts1 &= ~signmask;
- shorts1 += pix1;
- shorts1 ^= signs1;
- shorts1 = maxsw4 (shorts1, 0);
- shorts1 = minsw4 (shorts1, clampmask);
-
- stl (pkwb (shorts0), dest);
- stl (pkwb (shorts1), dest + 4);
- stq (0, block);
- stq (0, block + 4);
-
- dest += stride;
- block += 8;
- } while (--i);
- } else {
- int DC;
- uint64_t p0, p1, p2, p3, p4, p5, p6, p7;
- uint64_t DCs;
-
- DC = (block[0] + 64) >> 7;
- block[0] = block[63] = 0;
-
- p0 = ldq (dest + 0 * stride);
- p1 = ldq (dest + 1 * stride);
- p2 = ldq (dest + 2 * stride);
- p3 = ldq (dest + 3 * stride);
- p4 = ldq (dest + 4 * stride);
- p5 = ldq (dest + 5 * stride);
- p6 = ldq (dest + 6 * stride);
- p7 = ldq (dest + 7 * stride);
-
- if (DC > 0) {
- DCs = BYTE_VEC (likely (DC <= 255) ? DC : 255);
- p0 += minub8 (DCs, ~p0);
- p1 += minub8 (DCs, ~p1);
- p2 += minub8 (DCs, ~p2);
- p3 += minub8 (DCs, ~p3);
- p4 += minub8 (DCs, ~p4);
- p5 += minub8 (DCs, ~p5);
- p6 += minub8 (DCs, ~p6);
- p7 += minub8 (DCs, ~p7);
- } else {
- DCs = BYTE_VEC (likely (-DC <= 255) ? -DC : 255);
- p0 -= minub8 (DCs, p0);
- p1 -= minub8 (DCs, p1);
- p2 -= minub8 (DCs, p2);
- p3 -= minub8 (DCs, p3);
- p4 -= minub8 (DCs, p4);
- p5 -= minub8 (DCs, p5);
- p6 -= minub8 (DCs, p6);
- p7 -= minub8 (DCs, p7);
- }
-
- stq (p0, dest + 0 * stride);
- stq (p1, dest + 1 * stride);
- stq (p2, dest + 2 * stride);
- stq (p3, dest + 3 * stride);
- stq (p4, dest + 4 * stride);
- stq (p5, dest + 5 * stride);
- stq (p6, dest + 6 * stride);
- stq (p7, dest + 7 * stride);
- }
-}
-
-void mpeg2_idct_copy_alpha (int16_t * block, uint8_t * dest, const int stride)
-{
- int i;
-
- for (i = 0; i < 8; i++)
- idct_row (block + 8 * i);
- for (i = 0; i < 8; i++)
- idct_col (block + i);
- do {
- dest[0] = CLIP (block[0]);
- dest[1] = CLIP (block[1]);
- dest[2] = CLIP (block[2]);
- dest[3] = CLIP (block[3]);
- dest[4] = CLIP (block[4]);
- dest[5] = CLIP (block[5]);
- dest[6] = CLIP (block[6]);
- dest[7] = CLIP (block[7]);
-
- stq(0, block);
- stq(0, block + 4);
-
- dest += stride;
- block += 8;
- } while (--i);
-}
-
-void mpeg2_idct_add_alpha (const int last, int16_t * block,
- uint8_t * dest, const int stride)
-{
- int i;
-
- if (last != 129 || (block[0] & (7 << 4)) == (4 << 4)) {
- for (i = 0; i < 8; i++)
- idct_row (block + 8 * i);
- for (i = 0; i < 8; i++)
- idct_col (block + i);
- do {
- dest[0] = CLIP (block[0] + dest[0]);
- dest[1] = CLIP (block[1] + dest[1]);
- dest[2] = CLIP (block[2] + dest[2]);
- dest[3] = CLIP (block[3] + dest[3]);
- dest[4] = CLIP (block[4] + dest[4]);
- dest[5] = CLIP (block[5] + dest[5]);
- dest[6] = CLIP (block[6] + dest[6]);
- dest[7] = CLIP (block[7] + dest[7]);
-
- stq(0, block);
- stq(0, block + 4);
-
- dest += stride;
- block += 8;
- } while (--i);
- } else {
- int DC;
-
- DC = (block[0] + 64) >> 7;
- block[0] = block[63] = 0;
- i = 8;
- do {
- dest[0] = CLIP (DC + dest[0]);
- dest[1] = CLIP (DC + dest[1]);
- dest[2] = CLIP (DC + dest[2]);
- dest[3] = CLIP (DC + dest[3]);
- dest[4] = CLIP (DC + dest[4]);
- dest[5] = CLIP (DC + dest[5]);
- dest[6] = CLIP (DC + dest[6]);
- dest[7] = CLIP (DC + dest[7]);
- dest += stride;
- } while (--i);
- }
-}
-
-void mpeg2_idct_alpha_init (void)
-{
- extern uint8_t mpeg2_scan_norm[64];
- extern uint8_t mpeg2_scan_alt[64];
- int i, j;
-
- for (i = 0; i < 64; i++) {
- j = mpeg2_scan_norm[i];
- mpeg2_scan_norm[i] = ((j & 0x36) >> 1) | ((j & 0x09) << 2);
- j = mpeg2_scan_alt[i];
- mpeg2_scan_alt[i] = ((j & 0x36) >> 1) | ((j & 0x09) << 2);
- }
-}
-
-#endif /* ARCH_ALPHA */
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