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Diffstat (limited to 'src/libffmpeg/libavcodec/ppc/fdct_altivec.c')
-rw-r--r--src/libffmpeg/libavcodec/ppc/fdct_altivec.c493
1 files changed, 0 insertions, 493 deletions
diff --git a/src/libffmpeg/libavcodec/ppc/fdct_altivec.c b/src/libffmpeg/libavcodec/ppc/fdct_altivec.c
deleted file mode 100644
index 2418c32bb..000000000
--- a/src/libffmpeg/libavcodec/ppc/fdct_altivec.c
+++ /dev/null
@@ -1,493 +0,0 @@
-/* ffmpeg/libavcodec/ppc/fdct_altivec.c, this file is part of the
- * AltiVec optimized library for the FFMPEG Multimedia System
- * Copyright (C) 2003 James Klicman <james@klicman.org>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-
-#include "common.h"
-#include "../dsputil.h"
-#include "dsputil_altivec.h"
-#include "gcc_fixes.h"
-
-
-#define vs16(v) ((vector signed short)(v))
-#define vs32(v) ((vector signed int)(v))
-#define vu8(v) ((vector unsigned char)(v))
-#define vu16(v) ((vector unsigned short)(v))
-#define vu32(v) ((vector unsigned int)(v))
-
-
-#define C1 0.98078525066375732421875000 /* cos(1*PI/16) */
-#define C2 0.92387950420379638671875000 /* cos(2*PI/16) */
-#define C3 0.83146959543228149414062500 /* cos(3*PI/16) */
-#define C4 0.70710676908493041992187500 /* cos(4*PI/16) */
-#define C5 0.55557024478912353515625000 /* cos(5*PI/16) */
-#define C6 0.38268342614173889160156250 /* cos(6*PI/16) */
-#define C7 0.19509032368659973144531250 /* cos(7*PI/16) */
-#define SQRT_2 1.41421353816986083984375000 /* sqrt(2) */
-
-
-#define W0 -(2 * C2)
-#define W1 (2 * C6)
-#define W2 (SQRT_2 * C6)
-#define W3 (SQRT_2 * C3)
-#define W4 (SQRT_2 * (-C1 + C3 + C5 - C7))
-#define W5 (SQRT_2 * ( C1 + C3 - C5 + C7))
-#define W6 (SQRT_2 * ( C1 + C3 + C5 - C7))
-#define W7 (SQRT_2 * ( C1 + C3 - C5 - C7))
-#define W8 (SQRT_2 * ( C7 - C3))
-#define W9 (SQRT_2 * (-C1 - C3))
-#define WA (SQRT_2 * (-C3 - C5))
-#define WB (SQRT_2 * ( C5 - C3))
-
-
-static vector float fdctconsts[3] = {
- (vector float)AVV( W0, W1, W2, W3 ),
- (vector float)AVV( W4, W5, W6, W7 ),
- (vector float)AVV( W8, W9, WA, WB )
-};
-
-#define LD_W0 vec_splat(cnsts0, 0)
-#define LD_W1 vec_splat(cnsts0, 1)
-#define LD_W2 vec_splat(cnsts0, 2)
-#define LD_W3 vec_splat(cnsts0, 3)
-#define LD_W4 vec_splat(cnsts1, 0)
-#define LD_W5 vec_splat(cnsts1, 1)
-#define LD_W6 vec_splat(cnsts1, 2)
-#define LD_W7 vec_splat(cnsts1, 3)
-#define LD_W8 vec_splat(cnsts2, 0)
-#define LD_W9 vec_splat(cnsts2, 1)
-#define LD_WA vec_splat(cnsts2, 2)
-#define LD_WB vec_splat(cnsts2, 3)
-
-
-#define FDCTROW(b0,b1,b2,b3,b4,b5,b6,b7) /* {{{ */ \
- x0 = vec_add(b0, b7); /* x0 = b0 + b7; */ \
- x7 = vec_sub(b0, b7); /* x7 = b0 - b7; */ \
- x1 = vec_add(b1, b6); /* x1 = b1 + b6; */ \
- x6 = vec_sub(b1, b6); /* x6 = b1 - b6; */ \
- x2 = vec_add(b2, b5); /* x2 = b2 + b5; */ \
- x5 = vec_sub(b2, b5); /* x5 = b2 - b5; */ \
- x3 = vec_add(b3, b4); /* x3 = b3 + b4; */ \
- x4 = vec_sub(b3, b4); /* x4 = b3 - b4; */ \
- \
- b7 = vec_add(x0, x3); /* b7 = x0 + x3; */ \
- b1 = vec_add(x1, x2); /* b1 = x1 + x2; */ \
- b0 = vec_add(b7, b1); /* b0 = b7 + b1; */ \
- b4 = vec_sub(b7, b1); /* b4 = b7 - b1; */ \
- \
- b2 = vec_sub(x0, x3); /* b2 = x0 - x3; */ \
- b6 = vec_sub(x1, x2); /* b6 = x1 - x2; */ \
- b5 = vec_add(b6, b2); /* b5 = b6 + b2; */ \
- cnst = LD_W2; \
- b5 = vec_madd(cnst, b5, mzero); /* b5 = b5 * W2; */ \
- cnst = LD_W1; \
- b2 = vec_madd(cnst, b2, b5); /* b2 = b5 + b2 * W1; */ \
- cnst = LD_W0; \
- b6 = vec_madd(cnst, b6, b5); /* b6 = b5 + b6 * W0; */ \
- \
- x0 = vec_add(x4, x7); /* x0 = x4 + x7; */ \
- x1 = vec_add(x5, x6); /* x1 = x5 + x6; */ \
- x2 = vec_add(x4, x6); /* x2 = x4 + x6; */ \
- x3 = vec_add(x5, x7); /* x3 = x5 + x7; */ \
- x8 = vec_add(x2, x3); /* x8 = x2 + x3; */ \
- cnst = LD_W3; \
- x8 = vec_madd(cnst, x8, mzero); /* x8 = x8 * W3; */ \
- \
- cnst = LD_W8; \
- x0 = vec_madd(cnst, x0, mzero); /* x0 *= W8; */ \
- cnst = LD_W9; \
- x1 = vec_madd(cnst, x1, mzero); /* x1 *= W9; */ \
- cnst = LD_WA; \
- x2 = vec_madd(cnst, x2, x8); /* x2 = x2 * WA + x8; */ \
- cnst = LD_WB; \
- x3 = vec_madd(cnst, x3, x8); /* x3 = x3 * WB + x8; */ \
- \
- cnst = LD_W4; \
- b7 = vec_madd(cnst, x4, x0); /* b7 = x4 * W4 + x0; */ \
- cnst = LD_W5; \
- b5 = vec_madd(cnst, x5, x1); /* b5 = x5 * W5 + x1; */ \
- cnst = LD_W6; \
- b3 = vec_madd(cnst, x6, x1); /* b3 = x6 * W6 + x1; */ \
- cnst = LD_W7; \
- b1 = vec_madd(cnst, x7, x0); /* b1 = x7 * W7 + x0; */ \
- \
- b7 = vec_add(b7, x2); /* b7 = b7 + x2; */ \
- b5 = vec_add(b5, x3); /* b5 = b5 + x3; */ \
- b3 = vec_add(b3, x2); /* b3 = b3 + x2; */ \
- b1 = vec_add(b1, x3); /* b1 = b1 + x3; */ \
- /* }}} */
-
-#define FDCTCOL(b0,b1,b2,b3,b4,b5,b6,b7) /* {{{ */ \
- x0 = vec_add(b0, b7); /* x0 = b0 + b7; */ \
- x7 = vec_sub(b0, b7); /* x7 = b0 - b7; */ \
- x1 = vec_add(b1, b6); /* x1 = b1 + b6; */ \
- x6 = vec_sub(b1, b6); /* x6 = b1 - b6; */ \
- x2 = vec_add(b2, b5); /* x2 = b2 + b5; */ \
- x5 = vec_sub(b2, b5); /* x5 = b2 - b5; */ \
- x3 = vec_add(b3, b4); /* x3 = b3 + b4; */ \
- x4 = vec_sub(b3, b4); /* x4 = b3 - b4; */ \
- \
- b7 = vec_add(x0, x3); /* b7 = x0 + x3; */ \
- b1 = vec_add(x1, x2); /* b1 = x1 + x2; */ \
- b0 = vec_add(b7, b1); /* b0 = b7 + b1; */ \
- b4 = vec_sub(b7, b1); /* b4 = b7 - b1; */ \
- \
- b2 = vec_sub(x0, x3); /* b2 = x0 - x3; */ \
- b6 = vec_sub(x1, x2); /* b6 = x1 - x2; */ \
- b5 = vec_add(b6, b2); /* b5 = b6 + b2; */ \
- cnst = LD_W2; \
- b5 = vec_madd(cnst, b5, mzero); /* b5 = b5 * W2; */ \
- cnst = LD_W1; \
- b2 = vec_madd(cnst, b2, b5); /* b2 = b5 + b2 * W1; */ \
- cnst = LD_W0; \
- b6 = vec_madd(cnst, b6, b5); /* b6 = b5 + b6 * W0; */ \
- \
- x0 = vec_add(x4, x7); /* x0 = x4 + x7; */ \
- x1 = vec_add(x5, x6); /* x1 = x5 + x6; */ \
- x2 = vec_add(x4, x6); /* x2 = x4 + x6; */ \
- x3 = vec_add(x5, x7); /* x3 = x5 + x7; */ \
- x8 = vec_add(x2, x3); /* x8 = x2 + x3; */ \
- cnst = LD_W3; \
- x8 = vec_madd(cnst, x8, mzero); /* x8 = x8 * W3; */ \
- \
- cnst = LD_W8; \
- x0 = vec_madd(cnst, x0, mzero); /* x0 *= W8; */ \
- cnst = LD_W9; \
- x1 = vec_madd(cnst, x1, mzero); /* x1 *= W9; */ \
- cnst = LD_WA; \
- x2 = vec_madd(cnst, x2, x8); /* x2 = x2 * WA + x8; */ \
- cnst = LD_WB; \
- x3 = vec_madd(cnst, x3, x8); /* x3 = x3 * WB + x8; */ \
- \
- cnst = LD_W4; \
- b7 = vec_madd(cnst, x4, x0); /* b7 = x4 * W4 + x0; */ \
- cnst = LD_W5; \
- b5 = vec_madd(cnst, x5, x1); /* b5 = x5 * W5 + x1; */ \
- cnst = LD_W6; \
- b3 = vec_madd(cnst, x6, x1); /* b3 = x6 * W6 + x1; */ \
- cnst = LD_W7; \
- b1 = vec_madd(cnst, x7, x0); /* b1 = x7 * W7 + x0; */ \
- \
- b7 = vec_add(b7, x2); /* b7 += x2; */ \
- b5 = vec_add(b5, x3); /* b5 += x3; */ \
- b3 = vec_add(b3, x2); /* b3 += x2; */ \
- b1 = vec_add(b1, x3); /* b1 += x3; */ \
- /* }}} */
-
-
-
-/* two dimensional discrete cosine transform */
-
-void fdct_altivec(int16_t *block)
-{
-POWERPC_PERF_DECLARE(altivec_fdct, 1);
- vector signed short *bp;
- vector float *cp;
- vector float b00, b10, b20, b30, b40, b50, b60, b70;
- vector float b01, b11, b21, b31, b41, b51, b61, b71;
- vector float mzero, cnst, cnsts0, cnsts1, cnsts2;
- vector float x0, x1, x2, x3, x4, x5, x6, x7, x8;
-
- POWERPC_PERF_START_COUNT(altivec_fdct, 1);
-
-
- /* setup constants {{{ */
- /* mzero = -0.0 */
- mzero = ((vector float)vec_splat_u32(-1));
- mzero = ((vector float)vec_sl(vu32(mzero), vu32(mzero)));
- cp = fdctconsts;
- cnsts0 = vec_ld(0, cp); cp++;
- cnsts1 = vec_ld(0, cp); cp++;
- cnsts2 = vec_ld(0, cp);
- /* }}} */
-
-
- /* 8x8 matrix transpose (vector short[8]) {{{ */
-#define MERGE_S16(hl,a,b) vec_merge##hl(vs16(a), vs16(b))
-
- bp = (vector signed short*)block;
- b00 = ((vector float)vec_ld(0, bp));
- b40 = ((vector float)vec_ld(16*4, bp));
- b01 = ((vector float)MERGE_S16(h, b00, b40));
- b11 = ((vector float)MERGE_S16(l, b00, b40));
- bp++;
- b10 = ((vector float)vec_ld(0, bp));
- b50 = ((vector float)vec_ld(16*4, bp));
- b21 = ((vector float)MERGE_S16(h, b10, b50));
- b31 = ((vector float)MERGE_S16(l, b10, b50));
- bp++;
- b20 = ((vector float)vec_ld(0, bp));
- b60 = ((vector float)vec_ld(16*4, bp));
- b41 = ((vector float)MERGE_S16(h, b20, b60));
- b51 = ((vector float)MERGE_S16(l, b20, b60));
- bp++;
- b30 = ((vector float)vec_ld(0, bp));
- b70 = ((vector float)vec_ld(16*4, bp));
- b61 = ((vector float)MERGE_S16(h, b30, b70));
- b71 = ((vector float)MERGE_S16(l, b30, b70));
-
- x0 = ((vector float)MERGE_S16(h, b01, b41));
- x1 = ((vector float)MERGE_S16(l, b01, b41));
- x2 = ((vector float)MERGE_S16(h, b11, b51));
- x3 = ((vector float)MERGE_S16(l, b11, b51));
- x4 = ((vector float)MERGE_S16(h, b21, b61));
- x5 = ((vector float)MERGE_S16(l, b21, b61));
- x6 = ((vector float)MERGE_S16(h, b31, b71));
- x7 = ((vector float)MERGE_S16(l, b31, b71));
-
- b00 = ((vector float)MERGE_S16(h, x0, x4));
- b10 = ((vector float)MERGE_S16(l, x0, x4));
- b20 = ((vector float)MERGE_S16(h, x1, x5));
- b30 = ((vector float)MERGE_S16(l, x1, x5));
- b40 = ((vector float)MERGE_S16(h, x2, x6));
- b50 = ((vector float)MERGE_S16(l, x2, x6));
- b60 = ((vector float)MERGE_S16(h, x3, x7));
- b70 = ((vector float)MERGE_S16(l, x3, x7));
-
-#undef MERGE_S16
- /* }}} */
-
-
-/* Some of the initial calculations can be done as vector short before
- * conversion to vector float. The following code section takes advantage
- * of this.
- */
-#if 1
- /* fdct rows {{{ */
- x0 = ((vector float)vec_add(vs16(b00), vs16(b70)));
- x7 = ((vector float)vec_sub(vs16(b00), vs16(b70)));
- x1 = ((vector float)vec_add(vs16(b10), vs16(b60)));
- x6 = ((vector float)vec_sub(vs16(b10), vs16(b60)));
- x2 = ((vector float)vec_add(vs16(b20), vs16(b50)));
- x5 = ((vector float)vec_sub(vs16(b20), vs16(b50)));
- x3 = ((vector float)vec_add(vs16(b30), vs16(b40)));
- x4 = ((vector float)vec_sub(vs16(b30), vs16(b40)));
-
- b70 = ((vector float)vec_add(vs16(x0), vs16(x3)));
- b10 = ((vector float)vec_add(vs16(x1), vs16(x2)));
-
- b00 = ((vector float)vec_add(vs16(b70), vs16(b10)));
- b40 = ((vector float)vec_sub(vs16(b70), vs16(b10)));
-
-#define CTF0(n) \
- b##n##1 = ((vector float)vec_unpackl(vs16(b##n##0))); \
- b##n##0 = ((vector float)vec_unpackh(vs16(b##n##0))); \
- b##n##1 = vec_ctf(vs32(b##n##1), 0); \
- b##n##0 = vec_ctf(vs32(b##n##0), 0);
-
- CTF0(0);
- CTF0(4);
-
- b20 = ((vector float)vec_sub(vs16(x0), vs16(x3)));
- b60 = ((vector float)vec_sub(vs16(x1), vs16(x2)));
-
- CTF0(2);
- CTF0(6);
-
-#undef CTF0
-
- x0 = vec_add(b60, b20);
- x1 = vec_add(b61, b21);
-
- cnst = LD_W2;
- x0 = vec_madd(cnst, x0, mzero);
- x1 = vec_madd(cnst, x1, mzero);
- cnst = LD_W1;
- b20 = vec_madd(cnst, b20, x0);
- b21 = vec_madd(cnst, b21, x1);
- cnst = LD_W0;
- b60 = vec_madd(cnst, b60, x0);
- b61 = vec_madd(cnst, b61, x1);
-
-#define CTFX(x,b) \
- b##0 = ((vector float)vec_unpackh(vs16(x))); \
- b##1 = ((vector float)vec_unpackl(vs16(x))); \
- b##0 = vec_ctf(vs32(b##0), 0); \
- b##1 = vec_ctf(vs32(b##1), 0); \
-
- CTFX(x4, b7);
- CTFX(x5, b5);
- CTFX(x6, b3);
- CTFX(x7, b1);
-
-#undef CTFX
-
-
- x0 = vec_add(b70, b10);
- x1 = vec_add(b50, b30);
- x2 = vec_add(b70, b30);
- x3 = vec_add(b50, b10);
- x8 = vec_add(x2, x3);
- cnst = LD_W3;
- x8 = vec_madd(cnst, x8, mzero);
-
- cnst = LD_W8;
- x0 = vec_madd(cnst, x0, mzero);
- cnst = LD_W9;
- x1 = vec_madd(cnst, x1, mzero);
- cnst = LD_WA;
- x2 = vec_madd(cnst, x2, x8);
- cnst = LD_WB;
- x3 = vec_madd(cnst, x3, x8);
-
- cnst = LD_W4;
- b70 = vec_madd(cnst, b70, x0);
- cnst = LD_W5;
- b50 = vec_madd(cnst, b50, x1);
- cnst = LD_W6;
- b30 = vec_madd(cnst, b30, x1);
- cnst = LD_W7;
- b10 = vec_madd(cnst, b10, x0);
-
- b70 = vec_add(b70, x2);
- b50 = vec_add(b50, x3);
- b30 = vec_add(b30, x2);
- b10 = vec_add(b10, x3);
-
-
- x0 = vec_add(b71, b11);
- x1 = vec_add(b51, b31);
- x2 = vec_add(b71, b31);
- x3 = vec_add(b51, b11);
- x8 = vec_add(x2, x3);
- cnst = LD_W3;
- x8 = vec_madd(cnst, x8, mzero);
-
- cnst = LD_W8;
- x0 = vec_madd(cnst, x0, mzero);
- cnst = LD_W9;
- x1 = vec_madd(cnst, x1, mzero);
- cnst = LD_WA;
- x2 = vec_madd(cnst, x2, x8);
- cnst = LD_WB;
- x3 = vec_madd(cnst, x3, x8);
-
- cnst = LD_W4;
- b71 = vec_madd(cnst, b71, x0);
- cnst = LD_W5;
- b51 = vec_madd(cnst, b51, x1);
- cnst = LD_W6;
- b31 = vec_madd(cnst, b31, x1);
- cnst = LD_W7;
- b11 = vec_madd(cnst, b11, x0);
-
- b71 = vec_add(b71, x2);
- b51 = vec_add(b51, x3);
- b31 = vec_add(b31, x2);
- b11 = vec_add(b11, x3);
- /* }}} */
-#else
- /* convert to float {{{ */
-#define CTF(n) \
- vs32(b##n##1) = vec_unpackl(vs16(b##n##0)); \
- vs32(b##n##0) = vec_unpackh(vs16(b##n##0)); \
- b##n##1 = vec_ctf(vs32(b##n##1), 0); \
- b##n##0 = vec_ctf(vs32(b##n##0), 0); \
-
- CTF(0);
- CTF(1);
- CTF(2);
- CTF(3);
- CTF(4);
- CTF(5);
- CTF(6);
- CTF(7);
-
-#undef CTF
- /* }}} */
-
- FDCTROW(b00, b10, b20, b30, b40, b50, b60, b70);
- FDCTROW(b01, b11, b21, b31, b41, b51, b61, b71);
-#endif
-
-
- /* 8x8 matrix transpose (vector float[8][2]) {{{ */
- x0 = vec_mergel(b00, b20);
- x1 = vec_mergeh(b00, b20);
- x2 = vec_mergel(b10, b30);
- x3 = vec_mergeh(b10, b30);
-
- b00 = vec_mergeh(x1, x3);
- b10 = vec_mergel(x1, x3);
- b20 = vec_mergeh(x0, x2);
- b30 = vec_mergel(x0, x2);
-
- x4 = vec_mergel(b41, b61);
- x5 = vec_mergeh(b41, b61);
- x6 = vec_mergel(b51, b71);
- x7 = vec_mergeh(b51, b71);
-
- b41 = vec_mergeh(x5, x7);
- b51 = vec_mergel(x5, x7);
- b61 = vec_mergeh(x4, x6);
- b71 = vec_mergel(x4, x6);
-
- x0 = vec_mergel(b01, b21);
- x1 = vec_mergeh(b01, b21);
- x2 = vec_mergel(b11, b31);
- x3 = vec_mergeh(b11, b31);
-
- x4 = vec_mergel(b40, b60);
- x5 = vec_mergeh(b40, b60);
- x6 = vec_mergel(b50, b70);
- x7 = vec_mergeh(b50, b70);
-
- b40 = vec_mergeh(x1, x3);
- b50 = vec_mergel(x1, x3);
- b60 = vec_mergeh(x0, x2);
- b70 = vec_mergel(x0, x2);
-
- b01 = vec_mergeh(x5, x7);
- b11 = vec_mergel(x5, x7);
- b21 = vec_mergeh(x4, x6);
- b31 = vec_mergel(x4, x6);
- /* }}} */
-
-
- FDCTCOL(b00, b10, b20, b30, b40, b50, b60, b70);
- FDCTCOL(b01, b11, b21, b31, b41, b51, b61, b71);
-
-
- /* round, convert back to short {{{ */
-#define CTS(n) \
- b##n##0 = vec_round(b##n##0); \
- b##n##1 = vec_round(b##n##1); \
- b##n##0 = ((vector float)vec_cts(b##n##0, 0)); \
- b##n##1 = ((vector float)vec_cts(b##n##1, 0)); \
- b##n##0 = ((vector float)vec_pack(vs32(b##n##0), vs32(b##n##1))); \
- vec_st(vs16(b##n##0), 0, bp);
-
- bp = (vector signed short*)block;
- CTS(0); bp++;
- CTS(1); bp++;
- CTS(2); bp++;
- CTS(3); bp++;
- CTS(4); bp++;
- CTS(5); bp++;
- CTS(6); bp++;
- CTS(7);
-
-#undef CTS
- /* }}} */
-
-POWERPC_PERF_STOP_COUNT(altivec_fdct, 1);
-}
-
-/* vim:set foldmethod=marker foldlevel=0: */
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 18:15:38 +0000