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207 lines
7.3 KiB
207 lines
7.3 KiB
/* |
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* Blackfin Pixel Operations |
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* Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/bfin/asm.h" |
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/* |
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motion compensation |
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primitives |
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* Halfpel motion compensation with rounding (a+b+1)>>1. |
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* This is an array[4][4] of motion compensation funcions for 4 |
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* horizontal blocksizes (8,16) and the 4 halfpel positions<br> |
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* *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ] |
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* @param block destination where the result is stored |
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* @param pixels source |
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* @param line_size number of bytes in a horizontal line of block |
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* @param h height |
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*/ |
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DEFUN(put_pixels8uc,mL1, |
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(uint8_t *block, const uint8_t *s0, const uint8_t *s1, |
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int dest_size, int line_size, int h)): |
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i3=r0; // dest |
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i0=r1; // src0 |
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i1=r2; // src1 |
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r0=[sp+12]; // dest_size |
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r2=[sp+16]; // line_size |
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p0=[sp+20]; // h |
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[--sp] = (r7:6); |
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r0+=-4; |
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m3=r0; |
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r2+=-8; |
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m0=r2; |
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LSETUP(pp8$0,pp8$1) LC0=P0; |
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DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
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pp8$0: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
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R6 = BYTEOP1P(R1:0,R3:2) || R0 = [I0++M0]|| R2 =[I1++M0]; |
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R7 = BYTEOP1P(R1:0,R3:2)(R) || R0 = [I0++] || [I3++] = R6 ; |
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pp8$1: DISALGNEXCPT || R2 = [I1++] || [I3++M3] = R7; |
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(r7:6) = [sp++]; |
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RTS; |
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DEFUN_END(put_pixels8uc) |
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DEFUN(put_pixels16uc,mL1, |
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(uint8_t *block, const uint8_t *s0, const uint8_t *s1, |
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int dest_size, int line_size, int h)): |
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link 0; |
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[--sp] = (r7:6); |
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i3=r0; // dest |
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i0=r1; // src0 |
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i1=r2; // src1 |
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r0=[fp+20]; // dest_size |
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r2=[fp+24]; // line_size |
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p0=[fp+28]; // h |
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r0+=-12; |
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m3=r0; // line_size |
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r2+=-16; |
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m0=r2; |
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LSETUP(pp16$0,pp16$1) LC0=P0; |
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DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
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pp16$0: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
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R6 = BYTEOP1P(R1:0,R3:2) || R0 = [I0++] || R2 =[I1++]; |
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R7 = BYTEOP1P(R1:0,R3:2)(R) || R1 = [I0++] || R3 =[I1++]; |
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[I3++] = R6; |
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R6 = BYTEOP1P(R1:0,R3:2) || R0 = [I0++M0] || R2 =[I1++M0]; |
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R7 = BYTEOP1P(R1:0,R3:2)(R) || R0 = [I0++] || [I3++] = R7 ; |
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[I3++] = R6; |
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pp16$1: DISALGNEXCPT || R2 = [I1++] || [I3++M3] = R7; |
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(r7:6) = [sp++]; |
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unlink; |
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RTS; |
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DEFUN_END(put_pixels16uc) |
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DEFUN(z_put_pixels16_xy2,mL1, |
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(uint8_t *block, const uint8_t *s0, |
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int dest_size, int line_size, int h)): |
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link 0; |
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[--sp] = (r7:4); |
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i3=r0; // dest |
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i0=r1; // src0--> pixels |
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i1=r1; // src1--> pixels + line_size |
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r2+=-12; |
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m2=r2; // m2=dest_width-4 |
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r2=[fp+20]; |
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m3=r2; // line_size |
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p0=[fp+24]; // h |
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r2+=-16; |
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i1+=m3; /* src1 + line_size */ |
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m0=r2; /* line-size - 20 */ |
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B0 = I0; |
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B1 = I1; |
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B3 = I3; |
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DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
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LSETUP(LS$16E,LE$16E) LC0=P0; |
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LS$16E: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
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R4 = BYTEOP2P (R3:2,R1:0) (RNDL) || R0 = [I0++] || R2 =[I1++]; |
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R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R1 = [I0++] || [I3++] = R4 ; |
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DISALGNEXCPT || R3 = [I1++] || [I3++] = R5; |
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R4 = BYTEOP2P (R3:2,R1:0) (RNDL) || R0 = [I0++M0]|| R2 = [I1++M0]; |
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R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R0 = [I0++] || [I3++] = R4 ; |
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LE$16E: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5; |
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M1 = 1; |
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I3 = B3; |
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I1 = B1; |
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I0 = B0; |
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I0 += M1; |
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I1 += M1; |
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DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
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LSETUP(LS$16O,LE$16O) LC0=P0; |
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LS$16O: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
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R4 = BYTEOP2P (R3:2,R1:0) (RNDH) || R0 = [I0++] || R2 =[I1++]; |
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R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R1 = [I0++] || R6 =[I3++]; |
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R4 = R4 +|+ R6 || R7 = [I3--]; |
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R5 = R5 +|+ R7 || [I3++] = R4; |
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DISALGNEXCPT || R3 =[I1++] || [I3++] = R5; |
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R4 = BYTEOP2P (R3:2,R1:0) (RNDH) || R0 = [I0++M0]|| R2 = [I1++M0]; |
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R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R0 = [I0++] || R6 = [I3++]; |
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R4 = R4 +|+ R6 || R7 = [I3--]; |
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R5 = R5 +|+ R7 || [I3++] = R4; |
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LE$16O: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5; |
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(r7:4) = [sp++]; |
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unlink; |
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rts; |
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DEFUN_END(z_put_pixels16_xy2) |
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DEFUN(z_put_pixels8_xy2,mL1, |
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(uint8_t *block, const uint8_t *s0, |
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int dest_size, int line_size, int h)): |
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link 0; |
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[--sp] = (r7:4); |
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i3=r0; // dest |
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i0=r1; // src0--> pixels |
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i1=r1; // src1--> pixels + line_size |
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r2+=-4; |
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m2=r2; // m2=dest_width-4 |
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r2=[fp+20]; |
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m3=r2; // line_size |
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p0=[fp+24]; // h |
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r2+=-8; |
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i1+=m3; /* src1 + line_size */ |
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m0=r2; /* line-size - 20 */ |
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b0 = I0; |
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b1 = I1; |
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b3 = I3; |
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LSETUP(LS$8E,LE$8E) LC0=P0; |
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DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
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LS$8E: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
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R4 = BYTEOP2P (R3:2,R1:0) (RNDL) || R0 = [I0++M0] || R2 =[I1++M0]; |
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R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R0 = [I0++] || [I3++] = R4 ; |
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LE$8E: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5; |
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M1 = 1; |
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I3 = b3; |
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I1 = b1; |
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I0 = b0; |
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I0 += M1; |
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I1 += M1; |
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LSETUP(LS$8O,LE$8O) LC0=P0; |
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DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
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LS$8O: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
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R4 = BYTEOP2P (R3:2,R1:0) (RNDH) || R0 = [I0++M0] || R2 =[I1++M0]; |
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R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R0 = [I0++] || R6 =[I3++]; |
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R4 = R4 +|+ R6 || R7 = [I3--]; |
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R5 = R5 +|+ R7 || [I3++] = R4; |
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LE$8O: DISALGNEXCPT || R2 =[I1++] || [I3++M2] = R5; |
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(r7:4) = [sp++]; |
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unlink; |
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rts; |
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DEFUN_END(z_put_pixels8_xy2)
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