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Diffstat (limited to 'libavcodec/bfin/dsputil.S')
| -rw-r--r-- | libavcodec/bfin/dsputil.S | 382 |
1 files changed, 382 insertions, 0 deletions
diff --git a/libavcodec/bfin/dsputil.S b/libavcodec/bfin/dsputil.S new file mode 100644 index 0000000..e19455b --- /dev/null +++ b/libavcodec/bfin/dsputil.S @@ -0,0 +1,382 @@ +/* + * Blackfin Pixel Operations + * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com> + * + * 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/bfin/asm.h" + +DEFUN(put_pixels_clamped,mL1, + (int16_t *block, uint8_t *dest, int line_size)): + [--SP] = (R7:4); + R4 = 0; + R5.l = 0x00ff; + R5.h = 0x00ff; + I0 = R0; // block + I1 = R1; // dest + R2 += -4; // line_size + M1 = R2; + P0 = 8; + R0 = [I0++]; + R1 = [I0++]; + R2 = MAX(R0, R4) (V); + LSETUP (ppc$0,ppc$1) LC0=P0; +ppc$0: R2 = MIN(R2, R5) (V); + R3 = MAX(R1, R4) (V); + R3 = MIN(R3, R5) (V) || R0 = [I0++]; + R6 = BYTEPACK (R2,R3) || R1 = [I0++]; + R2 = MAX(R0, R4) (V) || [I1++] = R6; + R2 = MIN(R2, R5) (V); + R3 = MAX(R1, R4) (V); + R3 = MIN(R3, R5) (V) || R0 = [I0++]; + R6 = BYTEPACK (R2,R3) || R1 = [I0++]; +ppc$1: R2 = Max(R0, R4) (V) || [I1++M1] = R6; + + (R7:4) = [SP++]; + RTS; +DEFUN_END(put_pixels_clamped) + +DEFUN(add_pixels_clamped,mL1, + (int16_t *block, uint8_t *dest, int line_size)): + [-- SP] = (R7:4); + R4 = 0; + I0 = 0; + R2 += -4; // line_size + M0 = R2; + I1 = R1; // dest + I3 = R0; // block + I2 = R1; // dest + P0 = 8; + M3 = 2; + R0 = [I3++] || R2 = [I1]; + R2 = R2 << 8 || R0.H = W[I3--] || R3 = [I1++]; + R3 = R3 >> 8 || R1.L = W[I3] || I3 += 4; + R6 = BYTEOP3P(R1:0, R3:2) (LO) || R1.H = W[I3++] || R2 = [I1]; + + LSETUP(apc$2,apc$3) LC1 = P0; +apc$2: R7 = BYTEOP3P(R1:0, R3:2) (HI, R) || R0 = [I3++] || R3 = [I1++M0]; + R2 = R2 << 8 || R0.H = W[I3--]; + R3 = R3 >> 8 || R1.L = W[I3] || I3 += 4; + R6 = R6 + R7 (S) || R1.H = W[I3]; + R6 = BYTEOP3P(R1:0, R3:2) (LO) || I3+=M3 || [I2++]=R6; + R7 = BYTEOP3P(R1:0, R3:2) (HI, R) || R0 = [I3++] || R2 = [I1]; + R2 = R2 << 8 || R0.H = W[I3--] || R3 = [I1++]; + R3 = R3 >> 8 || R1.L = W[I3] || I3 += 4; + R6 = R6 + R7 (S) || R1.H = W[I3++]; +apc$3: R6 = BYTEOP3P(R1:0, R3:2) (LO) || [I2++M0] = R6 || R2 = [I1]; + + (R7:4) = [SP++]; + RTS; +DEFUN_END(add_pixels_clamped) + +DEFUN(diff_pixels,mL1, + (int16_t *block, uint8_t *s1, uint8_t *s2, int stride)): + link 0; + [--sp] = (r7:4); + p0=8; + i3=r0; // block + i0=r1; // s1 + i1=r2; // s2 + r2=[fp+20]; // stride + r2+=-8; + m0=r2; + + + LSETUP(.LS0,.LE0) LC0=P0; + DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; + +.LS0: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++]; + (R5,R4) = BYTEOP16M (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M0]; + (R7,R6) = BYTEOP16M (R1:0,R3:2) (R)|| R0 = [I0++] || [I3++] = R4; + DISALGNEXCPT || R2 = [I1++] || [I3++] = R5; + [i3++]=r6; +.LE0: [i3++]=r7; + + (r7:4) = [sp++]; + unlink; + rts; +DEFUN_END(diff_pixels) + +/* + for (i = 0; i < 16; i++) { + for (j = 0; j < 16; j++) { + sum += pix[j]; + } + pix += line_size; + } +*/ +DEFUN(pix_sum,mL1, + (uint8_t *p, int stride)): + link 0; + [--sp] = (r7:4); + p0=8; + i0=r0; // s1 + i1=r0; + m1=r1; + r1=r1+r1; + r1+=-16; // stride + m0=r1; + i1+=m1; + + r6=0; + + LSETUP(LS$PS,LE$PS) LC0=P0; + DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; + +LS$PS: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++]; + (R5,R4) = BYTEOP16P (R3:2,R1:0) || R0 = [I0++] || R2 = [I1++]; + r6=r6+|+r5; + r6=r6+|+r4; + (R5,R4) = BYTEOP16P (R3:2,R1:0) (R)|| R1 = [I0++] || R3 = [I1++]; + r6=r6+|+r5; + r6=r6+|+r4; + (R5,R4) = BYTEOP16P (R3:2,R1:0) || R0 = [I0++m0] || R2 = [I1++m0]; + r6=r6+|+r5; + r6=r6+|+r4; + (R5,R4) = BYTEOP16P (R3:2,R1:0) (R)|| R0 = [I0++] || R2 = [I1++]; + r6=r6+|+r5; +LE$PS: r6=r6+|+r4; + r0.l=r6.l+r6.h; + r0.h=0; + + (r7:4) = [sp++]; + unlink; + rts; +DEFUN_END(pix_sum) + + +DEFUN(get_pixels,mL1, + (int16_t *restrict block, const uint8_t *pixels, int line_size)): + [--sp] = (r7:4); + i3=r0; // dest + i0=r1; // src0 + p0=8; + r2+=-8; + m0=r2; + LSETUP(gp8$0,gp8$1) LC0=P0; + + DISALGNEXCPT || R0 = [I0++]; + DISALGNEXCPT || R1 = [I0++]; + +gp8$0: (R7,R6) = byteunpack R1:0 || R0 = [I0++M0]; + (R5,R4) = byteunpack R1:0 (R) || R0 = [I0++] || [I3++]=R6; + DISALGNEXCPT || R1 = [I0++] || [I3++]=R7; + [I3++]=R4; +gp8$1: [I3++]=R5 + + + (r7:4) = [sp++]; + RTS; +DEFUN_END(get_pixels) + + +/* sad = sad16x16 (ubyte *mb, ubyte *refwin, srcwidth, refwinwidth, h) */ +/* 91 cycles */ +DEFUN(z_sad16x16,mL1, + (uint8_t *blk1, uint8_t *blk2, int dsz, int line_size, int h)): + link 0; + I0 = R0; + I1 = R1; + + A1 = A0 = 0; + R0 = [sp+20]; // rwidth + P2 = [sp+24]; // height + R3 = 16; + R0 = R0 - R3; + R3 = R2 - R3; + M1 = R0; + M0 = R3; + + DISALGNEXCPT || R0 = [I0++] || R2 = [I1++]; + LSETUP (s$16, e$16) LC0=P2; +s$16: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++]; + SAA (R1:0,R3:2) || R0 = [I0++] || R2 = [I1++]; + SAA (R1:0,R3:2) (R) || R1 = [I0++] || R3 = [I1++]; + SAA (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M1]; +e$16: SAA (R1:0,R3:2) (R) || R0 = [I0++] || R2 = [I1++]; + + R3=A1.L+A1.H, R2=A0.L+A0.H ; + R0 = R2 + R3 ; + unlink; + RTS; +DEFUN_END(z_sad16x16) + +/* sad = sad8x8 (ubyte *mb, ubyte *refwin, int srcwidth, int refwinwidth, int h) */ +/* 36 cycles */ +DEFUN(z_sad8x8,mL1, + (uint8_t *blk1, uint8_t *blk2, int dsz, int line_size, int h)): + I0 = R0; + I1 = R1; + + A1 = A0 = 0; + r0 = [sp+12]; // rwidth + P2 = [sp+16]; //height + R3 = 8; + R0 = R0 - R3; + R3 = R2 - R3; + M0 = R3; + M1 = R0; + + LSETUP (s$8, e$8) LC0=P2; + DISALGNEXCPT || R0 = [I0++] || R2 = [I1++]; + DISALGNEXCPT || R1 = [I0++] || R3 = [I1++]; +s$8: SAA (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M1]; + SAA (R1:0,R3:2) (R) || R0 = [I0++] || R2 = [I1++]; +e$8: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++]; + + R3=A1.L+A1.H, R2=A0.L+A0.H ; + R0 = R2 + R3 ; + RTS; +DEFUN_END(z_sad8x8) + +DEFUN(pix_norm1,mL1, + (uint8_t * pix, int line_size)): + [--SP]=(R7:4,P5:3); + + // Fetch the input arguments. + P1 = R0; // pix + P0 = R1; // line_size + P5 = 16; // loop ctr. + P0 -= P5; + M0 = P0; // M0 = line_size-16; + // Now for the real work. + A1 = A0 = 0; + lsetup(_pix_norm1_blkfn_loopStart, _pix_norm1_blkfn_loopEnd) LC1 = P5; + I0 = P1; + DISALGNEXCPT || r0 = [i0++]; + +_pix_norm1_blkfn_loopStart: + // following unpacks pix1[0..15] pix1+line_size[0..15] + DISALGNEXCPT || r1 = [i0++]; + + (r5, r4) = byteunpack r1:0 || r0 = [i0++]; + a1 += r5.h * r5.h, a0 += r5.l * r5.l (is); + a1 += r4.h * r4.h, a0 += r4.l * r4.l (is); + (r5, r4) = byteunpack r1:0(r) || r1 = [i0++]; + a1 += r5.h * r5.h, a0 += r5.l * r5.l (is); + a1 += r4.h * r4.h, a0 += r4.l * r4.l (is); + (r5, r4) = byteunpack r1:0 || r0 = [i0++M0]; + a1 += r5.h * r5.h, a0 += r5.l * r5.l (is); + a1 += r4.h * r4.h, a0 += r4.l * r4.l (is); + (r5, r4) = byteunpack r1:0(r) || r0 = [i0++]; + a1 += r5.h * r5.h, a0 += r5.l * r5.l (is); +_pix_norm1_blkfn_loopEnd: + a1 += r4.h * r4.h, a0 += r4.l * r4.l (is); + + +// Clean up at the end: + R2 = A0, R3 = A1; + R0 = R2 + R3 (S); + + (R7:4,P5:3)=[SP++]; + + RTS; +DEFUN_END(pix_norm1) + +DEFUN(sse4,mL1, + (void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)): + link 0; + [--sp] = (r7:6); + p0=[fp+24]; // h + i0=r1; // pix1 + i1=r2; // pix2 + r2=[fp+20]; // line_size + r2+=-4; + m0=r2; + + a0=a1=0; + LSETUP(.S40,.E40) LC0=P0; + DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; + +.S40: DISALGNEXCPT || R1 = [I0++M0] || R3 = [I1++M0]; + (R7,R6) = BYTEOP16M (R1:0,R3:2); + a0 += r7.l * r7.l, a1 += r7.h * r7.h (is); +.E40: a0 += r6.l * r6.l, a1 += r6.h * r6.h (is); + a0 += a1; + r0 = a0; + + (r7:6) = [sp++]; + unlink; + rts; +DEFUN_END(sse4) + +DEFUN(sse8,mL1, + (void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)): + link 0; + [--sp] = (r7:6); + p0=[fp+24]; // h + i0=r1; // pix1 + i1=r2; // pix2 + r2=[fp+20]; // line_size + r2+=-8; + m0=r2; + + a0=a1=0; + LSETUP(.S80,.E80) LC0=P0; + DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; + +.S80: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++]; + (R7,R6) = BYTEOP16M (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M0]; + a0 += r7.l * r7.l, a1 += r7.h * r7.h (is); + a0 += r6.l * r6.l, a1 += r6.h * r6.h (is); + (R7,R6) = BYTEOP16M (R1:0,R3:2) (R)|| R0 = [I0++] || R2 = [I1++]; + a0 += r7.l * r7.l, a1 += r7.h * r7.h (is); +.E80: a0 += r6.l * r6.l, a1 += r6.h * r6.h (is); + a0 += a1; + r0 = a0; + + (r7:6) = [sp++]; + unlink; + rts; +DEFUN_END(sse8) + +DEFUN(sse16,mL1, + (void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)): + link 0; + [--sp] = (r7:6); + p0=[fp+24]; // h + i0=r1; // pix1 + i1=r2; // pix2 + r2=[fp+20]; // line_size + r2+=-16; + m0=r2; + + a0=a1=0; + DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; + LSETUP(.S160,.E160) LC0=P0; + +.S160: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++]; + (R7,R6) = BYTEOP16M (R1:0,R3:2) || R0 = [I0++] || R2 = [I1++]; + a0 += r7.l * r7.l, a1 += r7.h * r7.h (is); + a0 += r6.l * r6.l, a1 += r6.h * r6.h (is); + (R7,R6) = BYTEOP16M (R1:0,R3:2) (R)|| R1 = [I0++] || R3 = [I1++]; + a0 += r7.l * r7.l, a1 += r7.h * r7.h (is); + a0 += r6.l * r6.l, a1 += r6.h * r6.h (is); + (R7,R6) = BYTEOP16M (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M0]; + a0 += r7.l * r7.l, a1 += r7.h * r7.h (is); + a0 += r6.l * r6.l, a1 += r6.h * r6.h (is); + (R7,R6) = BYTEOP16M (R1:0,R3:2) (R)|| R0 = [I0++] || R2 = [I1++]; + a0 += r7.l * r7.l, a1 += r7.h * r7.h (is); +.E160: a0 += r6.l * r6.l, a1 += r6.h * r6.h (is); + a0 += a1; + r0 = a0; + + (r7:6) = [sp++]; + unlink; + rts; +DEFUN_END(sse16) |
