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Diffstat (limited to 'contrib/ffmpeg/libavcodec/sh4/idct_sh4.c')
-rw-r--r--contrib/ffmpeg/libavcodec/sh4/idct_sh4.c366
1 files changed, 0 insertions, 366 deletions
diff --git a/contrib/ffmpeg/libavcodec/sh4/idct_sh4.c b/contrib/ffmpeg/libavcodec/sh4/idct_sh4.c
deleted file mode 100644
index 3b8428c3c..000000000
--- a/contrib/ffmpeg/libavcodec/sh4/idct_sh4.c
+++ /dev/null
@@ -1,366 +0,0 @@
-/*
- * idct for sh4
- *
- * Copyright (c) 2001-2003 BERO <bero@geocities.co.jp>
- *
- * 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 "../dsputil.h"
-#define c1 1.38703984532214752434 /* sqrt(2)*cos(1*pi/16) */
-#define c2 1.30656296487637657577 /* sqrt(2)*cos(2*pi/16) */
-#define c3 1.17587560241935884520 /* sqrt(2)*cos(3*pi/16) */
-#define c4 1.00000000000000000000 /* sqrt(2)*cos(4*pi/16) */
-#define c5 0.78569495838710234903 /* sqrt(2)*cos(5*pi/16) */
-#define c6 0.54119610014619712324 /* sqrt(2)*cos(6*pi/16) */
-#define c7 0.27589937928294311353 /* sqrt(2)*cos(7*pi/16) */
-
-static const float even_table[] __attribute__ ((aligned(8))) = {
- c4, c4, c4, c4,
- c2, c6,-c6,-c2,
- c4,-c4,-c4, c4,
- c6,-c2, c2,-c6
-};
-
-static const float odd_table[] __attribute__ ((aligned(8))) = {
- c1, c3, c5, c7,
- c3,-c7,-c1,-c5,
- c5,-c1, c7, c3,
- c7,-c5, c3,-c1
-};
-
-#undef c1
-#undef c2
-#undef c3
-#undef c4
-#undef c5
-#undef c6
-#undef c7
-
-#if defined(__SH4_SINGLE__) || defined(__SH4_SINGLE_ONLY__)
-
-#define load_matrix(table) \
- __asm__ volatile( \
- " fschg\n" \
- " fmov @%0+,xd0\n" \
- " fmov @%0+,xd2\n" \
- " fmov @%0+,xd4\n" \
- " fmov @%0+,xd6\n" \
- " fmov @%0+,xd8\n" \
- " fmov @%0+,xd10\n" \
- " fmov @%0+,xd12\n" \
- " fmov @%0+,xd14\n" \
- " fschg\n" \
- :\
- : "r"(table)\
- : "0" \
- )
-
-#define ftrv() \
- __asm__ volatile("ftrv xmtrx,fv0" \
- : "=f"(fr0),"=f"(fr1),"=f"(fr2),"=f"(fr3) \
- : "0"(fr0), "1"(fr1), "2"(fr2), "3"(fr3) );
-
-#define DEFREG \
- register float fr0 __asm__("fr0"); \
- register float fr1 __asm__("fr1"); \
- register float fr2 __asm__("fr2"); \
- register float fr3 __asm__("fr3")
-
-#else
-
-/* generic C code for check */
-
-static void ftrv_(const float xf[],float fv[])
-{
- float f0,f1,f2,f3;
- f0 = fv[0];
- f1 = fv[1];
- f2 = fv[2];
- f3 = fv[3];
- fv[0] = xf[0]*f0 + xf[4]*f1 + xf[ 8]*f2 + xf[12]*f3;
- fv[1] = xf[1]*f0 + xf[5]*f1 + xf[ 9]*f2 + xf[13]*f3;
- fv[2] = xf[2]*f0 + xf[6]*f1 + xf[10]*f2 + xf[14]*f3;
- fv[3] = xf[3]*f0 + xf[7]*f1 + xf[11]*f2 + xf[15]*f3;
-}
-
-static void load_matrix_(float xf[],const float table[])
-{
- int i;
- for(i=0;i<16;i++) xf[i]=table[i];
-}
-
-#define ftrv() ftrv_(xf,fv)
-#define load_matrix(table) load_matrix_(xf,table)
-
-#define DEFREG \
- float fv[4],xf[16]
-
-#define fr0 fv[0]
-#define fr1 fv[1]
-#define fr2 fv[2]
-#define fr3 fv[3]
-
-#endif
-
-#if 1
-#define DESCALE(x,n) (x)*(1.0f/(1<<(n)))
-#else
-#define DESCALE(x,n) (((int)(x)+(1<<(n-1)))>>(n))
-#endif
-
-/* this code work worse on gcc cvs. 3.2.3 work fine */
-
-
-#if 1
-//optimized
-
-void idct_sh4(DCTELEM *block)
-{
- DEFREG;
-
- int i;
- float tblock[8*8],*fblock;
- int ofs1,ofs2,ofs3;
-
-#if defined(__SH4__)
-#error "FIXME!! change to single float"
-#endif
-
- /* row */
-
- /* even part */
- load_matrix(even_table);
-
- fblock = tblock+4;
- i = 8;
- do {
- fr0 = block[0];
- fr1 = block[2];
- fr2 = block[4];
- fr3 = block[6];
- block+=8;
- ftrv();
- *--fblock = fr3;
- *--fblock = fr2;
- *--fblock = fr1;
- *--fblock = fr0;
- fblock+=8+4;
- } while(--i);
- block-=8*8;
- fblock-=8*8+4;
-
- load_matrix(odd_table);
-
- i = 8;
-
-// ofs1 = sizeof(float)*1;
-// ofs2 = sizeof(float)*2;
-// ofs3 = sizeof(float)*3;
-
- do {
- float t0,t1,t2,t3;
- fr0 = block[1];
- fr1 = block[3];
- fr2 = block[5];
- fr3 = block[7];
- block+=8;
- ftrv();
- t0 = *fblock++;
- t1 = *fblock++;
- t2 = *fblock++;
- t3 = *fblock++;
- fblock+=4;
- *--fblock = t0 - fr0;
- *--fblock = t1 - fr1;
- *--fblock = t2 - fr2;
- *--fblock = t3 - fr3;
- *--fblock = t3 + fr3;
- *--fblock = t2 + fr2;
- *--fblock = t1 + fr1;
- *--fblock = t0 + fr0;
- fblock+=8;
- } while(--i);
- block-=8*8;
- fblock-=8*8;
-
- /* col */
-
- /* even part */
- load_matrix(even_table);
-
- ofs1 = sizeof(float)*2*8;
- ofs2 = sizeof(float)*4*8;
- ofs3 = sizeof(float)*6*8;
-
- i = 8;
-
-#define OA(fblock,ofs) *(float*)((char*)fblock + ofs)
-
- do {
- fr0 = OA(fblock, 0);
- fr1 = OA(fblock,ofs1);
- fr2 = OA(fblock,ofs2);
- fr3 = OA(fblock,ofs3);
- ftrv();
- OA(fblock,0 ) = fr0;
- OA(fblock,ofs1) = fr1;
- OA(fblock,ofs2) = fr2;
- OA(fblock,ofs3) = fr3;
- fblock++;
- } while(--i);
- fblock-=8;
-
- load_matrix(odd_table);
-
- i=8;
- do {
- float t0,t1,t2,t3;
- t0 = OA(fblock, 0); /* [8*0] */
- t1 = OA(fblock,ofs1); /* [8*2] */
- t2 = OA(fblock,ofs2); /* [8*4] */
- t3 = OA(fblock,ofs3); /* [8*6] */
- fblock+=8;
- fr0 = OA(fblock, 0); /* [8*1] */
- fr1 = OA(fblock,ofs1); /* [8*3] */
- fr2 = OA(fblock,ofs2); /* [8*5] */
- fr3 = OA(fblock,ofs3); /* [8*7] */
- fblock+=-8+1;
- ftrv();
- block[8*0] = DESCALE(t0 + fr0,3);
- block[8*7] = DESCALE(t0 - fr0,3);
- block[8*1] = DESCALE(t1 + fr1,3);
- block[8*6] = DESCALE(t1 - fr1,3);
- block[8*2] = DESCALE(t2 + fr2,3);
- block[8*5] = DESCALE(t2 - fr2,3);
- block[8*3] = DESCALE(t3 + fr3,3);
- block[8*4] = DESCALE(t3 - fr3,3);
- block++;
- } while(--i);
-
-#if defined(__SH4__)
-#error "FIXME!! change to double"
-#endif
-}
-#else
-void idct_sh4(DCTELEM *block)
-{
- DEFREG;
-
- int i;
- float tblock[8*8],*fblock;
-
- /* row */
-
- /* even part */
- load_matrix(even_table);
-
- fblock = tblock;
- i = 8;
- do {
- fr0 = block[0];
- fr1 = block[2];
- fr2 = block[4];
- fr3 = block[6];
- block+=8;
- ftrv();
- fblock[0] = fr0;
- fblock[2] = fr1;
- fblock[4] = fr2;
- fblock[6] = fr3;
- fblock+=8;
- } while(--i);
- block-=8*8;
- fblock-=8*8;
-
- load_matrix(odd_table);
-
- i = 8;
-
- do {
- float t0,t1,t2,t3;
- fr0 = block[1];
- fr1 = block[3];
- fr2 = block[5];
- fr3 = block[7];
- block+=8;
- ftrv();
- t0 = fblock[0];
- t1 = fblock[2];
- t2 = fblock[4];
- t3 = fblock[6];
- fblock[0] = t0 + fr0;
- fblock[7] = t0 - fr0;
- fblock[1] = t1 + fr1;
- fblock[6] = t1 - fr1;
- fblock[2] = t2 + fr2;
- fblock[5] = t2 - fr2;
- fblock[3] = t3 + fr3;
- fblock[4] = t3 - fr3;
- fblock+=8;
- } while(--i);
- block-=8*8;
- fblock-=8*8;
-
- /* col */
-
- /* even part */
- load_matrix(even_table);
-
- i = 8;
-
- do {
- fr0 = fblock[8*0];
- fr1 = fblock[8*2];
- fr2 = fblock[8*4];
- fr3 = fblock[8*6];
- ftrv();
- fblock[8*0] = fr0;
- fblock[8*2] = fr1;
- fblock[8*4] = fr2;
- fblock[8*6] = fr3;
- fblock++;
- } while(--i);
- fblock-=8;
-
- load_matrix(odd_table);
-
- i=8;
- do {
- float t0,t1,t2,t3;
- fr0 = fblock[8*1];
- fr1 = fblock[8*3];
- fr2 = fblock[8*5];
- fr3 = fblock[8*7];
- ftrv();
- t0 = fblock[8*0];
- t1 = fblock[8*2];
- t2 = fblock[8*4];
- t3 = fblock[8*6];
- fblock++;
- block[8*0] = DESCALE(t0 + fr0,3);
- block[8*7] = DESCALE(t0 - fr0,3);
- block[8*1] = DESCALE(t1 + fr1,3);
- block[8*6] = DESCALE(t1 - fr1,3);
- block[8*2] = DESCALE(t2 + fr2,3);
- block[8*5] = DESCALE(t2 - fr2,3);
- block[8*3] = DESCALE(t3 + fr3,3);
- block[8*4] = DESCALE(t3 - fr3,3);
- block++;
- } while(--i);
-}
-#endif
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