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third_party_ffmpeg/libswscale/yuv2rgb_vis.c
Diego Pettenò 7ad6469eae Convert asm keyword into __asm__. 
Neither the asm() nor the __asm__() keyword is not part of the C99
standard, but while GCC accepts the former in C89 syntax, it is not
accepted in C99 unless GNU extensions are turned on (with -fasm). The
latter form is accepted in any syntax as an extension (without
requiring further command-line options).

Sun Studio C99 compiler also does not accept asm() while accepting
__asm__(), albeit reporting warnings that it's not valid C99 synta.

Originally committed as revision 27778 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
2008-10-16 13:34:30 +00:00

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/*
* VIS optimized software YUV to RGB converter
* Copyright (c) 2007 Denes Balatoni <dbalatoni@programozo.hu>
*
* 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 <inttypes.h>
#include <stdlib.h>
#include "swscale.h"
#include "swscale_internal.h"
#define YUV2RGB_INIT \
"wr %%g0, 0x10, %%gsr \n\t" \
"ldd [%5], %%f32 \n\t" \
"ldd [%5+8], %%f34 \n\t" \
"ldd [%5+16], %%f36 \n\t" \
"ldd [%5+24], %%f38 \n\t" \
"ldd [%5+32], %%f40 \n\t" \
"ldd [%5+40], %%f42 \n\t" \
"ldd [%5+48], %%f44 \n\t" \
"ldd [%5+56], %%f46 \n\t" \
"ldd [%5+64], %%f48 \n\t" \
"ldd [%5+72], %%f50 \n\t"
#define YUV2RGB_KERNEL \
/* ^^^^ f0=Y f3=u f5=v */ \
"fmul8x16 %%f3, %%f48, %%f6 \n\t" \
"fmul8x16 %%f19, %%f48, %%f22 \n\t" \
"fmul8x16 %%f5, %%f44, %%f8 \n\t" \
"fmul8x16 %%f21, %%f44, %%f24 \n\t" \
"fmul8x16 %%f0, %%f42, %%f0 \n\t" \
"fmul8x16 %%f16, %%f42, %%f16 \n\t" \
"fmul8x16 %%f3, %%f50, %%f2 \n\t" \
"fmul8x16 %%f19, %%f50, %%f18 \n\t" \
"fmul8x16 %%f5, %%f46, %%f4 \n\t" \
"fmul8x16 %%f21, %%f46, %%f20 \n\t" \
\
"fpsub16 %%f6, %%f34, %%f6 \n\t" /* 1 */ \
"fpsub16 %%f22, %%f34, %%f22 \n\t" /* 1 */ \
"fpsub16 %%f8, %%f38, %%f8 \n\t" /* 3 */ \
"fpsub16 %%f24, %%f38, %%f24 \n\t" /* 3 */ \
"fpsub16 %%f0, %%f32, %%f0 \n\t" /* 0 */ \
"fpsub16 %%f16, %%f32, %%f16 \n\t" /* 0 */ \
"fpsub16 %%f2, %%f36, %%f2 \n\t" /* 2 */ \
"fpsub16 %%f18, %%f36, %%f18 \n\t" /* 2 */ \
"fpsub16 %%f4, %%f40, %%f4 \n\t" /* 4 */ \
"fpsub16 %%f20, %%f40, %%f20 \n\t" /* 4 */ \
\
"fpadd16 %%f0, %%f8, %%f8 \n\t" /* Gt */ \
"fpadd16 %%f16, %%f24, %%f24 \n\t" /* Gt */ \
"fpadd16 %%f0, %%f4, %%f4 \n\t" /* R */ \
"fpadd16 %%f16, %%f20, %%f20 \n\t" /* R */ \
"fpadd16 %%f0, %%f6, %%f6 \n\t" /* B */ \
"fpadd16 %%f16, %%f22, %%f22 \n\t" /* B */ \
"fpadd16 %%f8, %%f2, %%f2 \n\t" /* G */ \
"fpadd16 %%f24, %%f18, %%f18 \n\t" /* G */ \
\
"fpack16 %%f4, %%f4 \n\t" \
"fpack16 %%f20, %%f20 \n\t" \
"fpack16 %%f6, %%f6 \n\t" \
"fpack16 %%f22, %%f22 \n\t" \
"fpack16 %%f2, %%f2 \n\t" \
"fpack16 %%f18, %%f18 \n\t"
static int vis_420P_ARGB32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[]){
int y, out1, out2, out3, out4, out5, out6;
for(y=0;y < srcSliceH;++y) {
__asm__ volatile (
YUV2RGB_INIT
"wr %%g0, 0xd2, %%asi \n\t" /* ASI_FL16_P */
"1: \n\t"
"ldda [%1] %%asi, %%f2 \n\t"
"ldda [%1+2] %%asi, %%f18 \n\t"
"ldda [%2] %%asi, %%f4 \n\t"
"ldda [%2+2] %%asi, %%f20 \n\t"
"ld [%0], %%f0 \n\t"
"ld [%0+4], %%f16 \n\t"
"fpmerge %%f3, %%f3, %%f2 \n\t"
"fpmerge %%f19, %%f19, %%f18 \n\t"
"fpmerge %%f5, %%f5, %%f4 \n\t"
"fpmerge %%f21, %%f21, %%f20 \n\t"
YUV2RGB_KERNEL
"fzero %%f0 \n\t"
"fpmerge %%f4, %%f6, %%f8 \n\t" // r,b,t1
"fpmerge %%f20, %%f22, %%f24 \n\t" // r,b,t1
"fpmerge %%f0, %%f2, %%f10 \n\t" // 0,g,t2
"fpmerge %%f0, %%f18, %%f26 \n\t" // 0,g,t2
"fpmerge %%f10, %%f8, %%f4 \n\t" // t2,t1,msb
"fpmerge %%f26, %%f24, %%f20 \n\t" // t2,t1,msb
"fpmerge %%f11, %%f9, %%f6 \n\t" // t2,t1,lsb
"fpmerge %%f27, %%f25, %%f22 \n\t" // t2,t1,lsb
"std %%f4, [%3] \n\t"
"std %%f20, [%3+16] \n\t"
"std %%f6, [%3+8] \n\t"
"std %%f22, [%3+24] \n\t"
"add %0, 8, %0 \n\t"
"add %1, 4, %1 \n\t"
"add %2, 4, %2 \n\t"
"subcc %4, 8, %4 \n\t"
"bne 1b \n\t"
"add %3, 32, %3 \n\t" //delay slot
: "=r" (out1), "=r" (out2), "=r" (out3), "=r" (out4), "=r" (out5), "=r" (out6)
: "0" (src[0]+(y+srcSliceY)*srcStride[0]), "1" (src[1]+((y+srcSliceY)>>1)*srcStride[1]),
"2" (src[2]+((y+srcSliceY)>>1)*srcStride[2]), "3" (dst[0]+(y+srcSliceY)*dstStride[0]),
"4" (c->dstW),
"5" (c->sparc_coeffs)
);
}
return srcSliceH;
}
static int vis_422P_ARGB32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[]){
int y, out1, out2, out3, out4, out5, out6;
for(y=0;y < srcSliceH;++y) {
__asm__ volatile (
YUV2RGB_INIT
"wr %%g0, 0xd2, %%asi \n\t" /* ASI_FL16_P */
"1: \n\t"
"ldda [%1] %%asi, %%f2 \n\t"
"ldda [%1+2] %%asi, %%f18 \n\t"
"ldda [%2] %%asi, %%f4 \n\t"
"ldda [%2+2] %%asi, %%f20 \n\t"
"ld [%0], %%f0 \n\t"
"ld [%0+4], %%f16 \n\t"
"fpmerge %%f3, %%f3, %%f2 \n\t"
"fpmerge %%f19, %%f19, %%f18 \n\t"
"fpmerge %%f5, %%f5, %%f4 \n\t"
"fpmerge %%f21, %%f21, %%f20 \n\t"
YUV2RGB_KERNEL
"fzero %%f0 \n\t"
"fpmerge %%f4, %%f6, %%f8 \n\t" // r,b,t1
"fpmerge %%f20, %%f22, %%f24 \n\t" // r,b,t1
"fpmerge %%f0, %%f2, %%f10 \n\t" // 0,g,t2
"fpmerge %%f0, %%f18, %%f26 \n\t" // 0,g,t2
"fpmerge %%f10, %%f8, %%f4 \n\t" // t2,t1,msb
"fpmerge %%f26, %%f24, %%f20 \n\t" // t2,t1,msb
"fpmerge %%f11, %%f9, %%f6 \n\t" // t2,t1,lsb
"fpmerge %%f27, %%f25, %%f22 \n\t" // t2,t1,lsb
"std %%f4, [%3] \n\t"
"std %%f20, [%3+16] \n\t"
"std %%f6, [%3+8] \n\t"
"std %%f22, [%3+24] \n\t"
"add %0, 8, %0 \n\t"
"add %1, 4, %1 \n\t"
"add %2, 4, %2 \n\t"
"subcc %4, 8, %4 \n\t"
"bne 1b \n\t"
"add %3, 32, %3 \n\t" //delay slot
: "=r" (out1), "=r" (out2), "=r" (out3), "=r" (out4), "=r" (out5), "=r" (out6)
: "0" (src[0]+(y+srcSliceY)*srcStride[0]), "1" (src[1]+(y+srcSliceY)*srcStride[1]),
"2" (src[2]+(y+srcSliceY)*srcStride[2]), "3" (dst[0]+(y+srcSliceY)*dstStride[0]),
"4" (c->dstW),
"5" (c->sparc_coeffs)
);
}
return srcSliceH;
}
SwsFunc yuv2rgb_init_vis(SwsContext *c) {
c->sparc_coeffs[5]=c->yCoeff;
c->sparc_coeffs[6]=c->vgCoeff;
c->sparc_coeffs[7]=c->vrCoeff;
c->sparc_coeffs[8]=c->ubCoeff;
c->sparc_coeffs[9]=c->ugCoeff;
c->sparc_coeffs[0]=(((int16_t)c->yOffset*(int16_t)c->yCoeff >>11) & 0xffff) * 0x0001000100010001ULL;
c->sparc_coeffs[1]=(((int16_t)c->uOffset*(int16_t)c->ubCoeff>>11) & 0xffff) * 0x0001000100010001ULL;
c->sparc_coeffs[2]=(((int16_t)c->uOffset*(int16_t)c->ugCoeff>>11) & 0xffff) * 0x0001000100010001ULL;
c->sparc_coeffs[3]=(((int16_t)c->vOffset*(int16_t)c->vgCoeff>>11) & 0xffff) * 0x0001000100010001ULL;
c->sparc_coeffs[4]=(((int16_t)c->vOffset*(int16_t)c->vrCoeff>>11) & 0xffff) * 0x0001000100010001ULL;
if (c->dstFormat == PIX_FMT_RGB32 && c->srcFormat == PIX_FMT_YUV422P && (c->dstW & 7)==0) {
av_log(c, AV_LOG_INFO, "SPARC VIS accelerated YUV422P -> RGB32\n");
return vis_422P_ARGB32;
}
else if (c->dstFormat == PIX_FMT_RGB32 && c->srcFormat == PIX_FMT_YUV420P && (c->dstW & 7)==0) {
av_log(c, AV_LOG_INFO, "SPARC VIS accelerated YUV420P -> RGB32\n");
return vis_420P_ARGB32;
}
return NULL;
}
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