mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
207 lines
7.3 KiB
207 lines
7.3 KiB
/* |
|
* 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" |
|
|
|
/* |
|
motion compensation |
|
primitives |
|
|
|
* Halfpel motion compensation with rounding (a+b+1)>>1. |
|
* This is an array[4][4] of motion compensation funcions for 4 |
|
* horizontal blocksizes (8,16) and the 4 halfpel positions<br> |
|
* *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ] |
|
* @param block destination where the result is stored |
|
* @param pixels source |
|
* @param line_size number of bytes in a horizontal line of block |
|
* @param h height |
|
|
|
*/ |
|
|
|
DEFUN(put_pixels8uc,mL1, |
|
(uint8_t *block, const uint8_t *s0, const uint8_t *s1, |
|
int dest_size, int line_size, int h)): |
|
i3=r0; // dest |
|
i0=r1; // src0 |
|
i1=r2; // src1 |
|
r0=[sp+12]; // dest_size |
|
r2=[sp+16]; // line_size |
|
p0=[sp+20]; // h |
|
[--sp] = (r7:6); |
|
r0+=-4; |
|
m3=r0; |
|
r2+=-8; |
|
m0=r2; |
|
LSETUP(pp8$0,pp8$1) LC0=P0; |
|
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
|
|
|
pp8$0: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
|
R6 = BYTEOP1P(R1:0,R3:2) || R0 = [I0++M0]|| R2 =[I1++M0]; |
|
R7 = BYTEOP1P(R1:0,R3:2)(R) || R0 = [I0++] || [I3++] = R6 ; |
|
pp8$1: DISALGNEXCPT || R2 = [I1++] || [I3++M3] = R7; |
|
|
|
(r7:6) = [sp++]; |
|
RTS; |
|
DEFUN_END(put_pixels8uc) |
|
|
|
DEFUN(put_pixels16uc,mL1, |
|
(uint8_t *block, const uint8_t *s0, const uint8_t *s1, |
|
int dest_size, int line_size, int h)): |
|
link 0; |
|
[--sp] = (r7:6); |
|
i3=r0; // dest |
|
i0=r1; // src0 |
|
i1=r2; // src1 |
|
r0=[fp+20]; // dest_size |
|
r2=[fp+24]; // line_size |
|
p0=[fp+28]; // h |
|
|
|
|
|
r0+=-12; |
|
m3=r0; // line_size |
|
r2+=-16; |
|
m0=r2; |
|
|
|
LSETUP(pp16$0,pp16$1) LC0=P0; |
|
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
|
|
|
pp16$0: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
|
R6 = BYTEOP1P(R1:0,R3:2) || R0 = [I0++] || R2 =[I1++]; |
|
R7 = BYTEOP1P(R1:0,R3:2)(R) || R1 = [I0++] || R3 =[I1++]; |
|
[I3++] = R6; |
|
R6 = BYTEOP1P(R1:0,R3:2) || R0 = [I0++M0] || R2 =[I1++M0]; |
|
R7 = BYTEOP1P(R1:0,R3:2)(R) || R0 = [I0++] || [I3++] = R7 ; |
|
[I3++] = R6; |
|
pp16$1: DISALGNEXCPT || R2 = [I1++] || [I3++M3] = R7; |
|
|
|
(r7:6) = [sp++]; |
|
unlink; |
|
RTS; |
|
DEFUN_END(put_pixels16uc) |
|
|
|
DEFUN(z_put_pixels16_xy2,mL1, |
|
(uint8_t *block, const uint8_t *s0, |
|
int dest_size, int line_size, int h)): |
|
link 0; |
|
[--sp] = (r7:4); |
|
i3=r0; // dest |
|
i0=r1; // src0--> pixels |
|
i1=r1; // src1--> pixels + line_size |
|
r2+=-12; |
|
m2=r2; // m2=dest_width-4 |
|
r2=[fp+20]; |
|
m3=r2; // line_size |
|
p0=[fp+24]; // h |
|
r2+=-16; |
|
i1+=m3; /* src1 + line_size */ |
|
m0=r2; /* line-size - 20 */ |
|
|
|
B0 = I0; |
|
B1 = I1; |
|
B3 = I3; |
|
|
|
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
|
|
|
LSETUP(LS$16E,LE$16E) LC0=P0; |
|
LS$16E: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
|
R4 = BYTEOP2P (R3:2,R1:0) (RNDL) || R0 = [I0++] || R2 =[I1++]; |
|
R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R1 = [I0++] || [I3++] = R4 ; |
|
DISALGNEXCPT || R3 = [I1++] || [I3++] = R5; |
|
R4 = BYTEOP2P (R3:2,R1:0) (RNDL) || R0 = [I0++M0]|| R2 = [I1++M0]; |
|
R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R0 = [I0++] || [I3++] = R4 ; |
|
LE$16E: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5; |
|
|
|
M1 = 1; |
|
I3 = B3; |
|
I1 = B1; |
|
I0 = B0; |
|
|
|
I0 += M1; |
|
I1 += M1; |
|
|
|
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
|
LSETUP(LS$16O,LE$16O) LC0=P0; |
|
LS$16O: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
|
R4 = BYTEOP2P (R3:2,R1:0) (RNDH) || R0 = [I0++] || R2 =[I1++]; |
|
R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R1 = [I0++] || R6 =[I3++]; |
|
R4 = R4 +|+ R6 || R7 = [I3--]; |
|
R5 = R5 +|+ R7 || [I3++] = R4; |
|
DISALGNEXCPT || R3 =[I1++] || [I3++] = R5; |
|
R4 = BYTEOP2P (R3:2,R1:0) (RNDH) || R0 = [I0++M0]|| R2 = [I1++M0]; |
|
R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R0 = [I0++] || R6 = [I3++]; |
|
R4 = R4 +|+ R6 || R7 = [I3--]; |
|
R5 = R5 +|+ R7 || [I3++] = R4; |
|
LE$16O: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5; |
|
|
|
(r7:4) = [sp++]; |
|
unlink; |
|
rts; |
|
DEFUN_END(z_put_pixels16_xy2) |
|
|
|
DEFUN(z_put_pixels8_xy2,mL1, |
|
(uint8_t *block, const uint8_t *s0, |
|
int dest_size, int line_size, int h)): |
|
link 0; |
|
[--sp] = (r7:4); |
|
i3=r0; // dest |
|
i0=r1; // src0--> pixels |
|
i1=r1; // src1--> pixels + line_size |
|
r2+=-4; |
|
m2=r2; // m2=dest_width-4 |
|
r2=[fp+20]; |
|
m3=r2; // line_size |
|
p0=[fp+24]; // h |
|
r2+=-8; |
|
i1+=m3; /* src1 + line_size */ |
|
m0=r2; /* line-size - 20 */ |
|
|
|
b0 = I0; |
|
b1 = I1; |
|
b3 = I3; |
|
|
|
LSETUP(LS$8E,LE$8E) LC0=P0; |
|
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
|
LS$8E: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
|
R4 = BYTEOP2P (R3:2,R1:0) (RNDL) || R0 = [I0++M0] || R2 =[I1++M0]; |
|
R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R0 = [I0++] || [I3++] = R4 ; |
|
LE$8E: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5; |
|
|
|
M1 = 1; |
|
I3 = b3; |
|
I1 = b1; |
|
I0 = b0; |
|
|
|
I0 += M1; |
|
I1 += M1; |
|
|
|
LSETUP(LS$8O,LE$8O) LC0=P0; |
|
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++]; |
|
LS$8O: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++]; |
|
R4 = BYTEOP2P (R3:2,R1:0) (RNDH) || R0 = [I0++M0] || R2 =[I1++M0]; |
|
R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R0 = [I0++] || R6 =[I3++]; |
|
R4 = R4 +|+ R6 || R7 = [I3--]; |
|
R5 = R5 +|+ R7 || [I3++] = R4; |
|
LE$8O: DISALGNEXCPT || R2 =[I1++] || [I3++M2] = R5; |
|
|
|
(r7:4) = [sp++]; |
|
unlink; |
|
rts; |
|
DEFUN_END(z_put_pixels8_xy2)
|
|
|