mirror of https://git.ffmpeg.org/ffmpeg.git
1930 lines
53 KiB
C
1930 lines
53 KiB
C
/*
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Copyright (C) 2001-2002 Michael Niedermayer <michaelni@gmx.at>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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supported Input formats: YV12, I420, IYUV, YUY2, BGR32, BGR24, BGR16, RGB32, RGB24, Y8, Y800
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supported output formats: YV12, I420, IYUV, BGR15, BGR16, BGR24, BGR32 (grayscale soon too)
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BGR15/16 support dithering
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unscaled special converters
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YV12/I420/IYUV -> BGR15/BGR16/BGR24/BGR32
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YV12/I420/IYUV -> YV12/I420/IYUV
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YUY2/BGR15/BGR16/BGR24/BGR32/RGB24/RGB32 -> same format
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BGR24 -> BGR32 & RGB24 -> RGB32
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BGR32 -> BGR24 & RGB32 -> RGB24
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*/
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/*
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tested special converters
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YV12/I420 -> BGR16
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YV12 -> YV12
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untested special converters
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YV12/I420/IYUV -> BGR15/BGR24/BGR32 (its the yuv2rgb stuff, so it should be ok)
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YV12/I420/IYUV -> YV12/I420/IYUV
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YUY2/BGR15/BGR16/BGR24/BGR32/RGB24/RGB32 -> same format
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BGR24 -> BGR32 & RGB24 -> RGB32
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BGR32 -> BGR24 & RGB32 -> RGB24
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*/
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#include <inttypes.h>
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#include <string.h>
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#include <math.h>
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#include <stdio.h>
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#include "../config.h"
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#include "../mangle.h"
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#ifdef HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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#include "swscale.h"
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#include "../cpudetect.h"
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#include "../bswap.h"
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#include "../libvo/img_format.h"
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#include "rgb2rgb.h"
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#undef MOVNTQ
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#undef PAVGB
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//#undef HAVE_MMX2
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//#define HAVE_3DNOW
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//#undef HAVE_MMX
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//#undef ARCH_X86
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#define DITHER1XBPP
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#define RET 0xC3 //near return opcode for X86
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#ifdef MP_DEBUG
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#define ASSERT(x) if(!(x)) { printf("ASSERT " #x " failed\n"); *((int*)0)=0; }
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#else
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#define ASSERT(x) ;
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#endif
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#ifdef M_PI
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#define PI M_PI
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#else
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#define PI 3.14159265358979323846
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#endif
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//FIXME replace this with something faster
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#define isPlanarYUV(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420)
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#define isYUV(x) ((x)==IMGFMT_YUY2 || isPlanarYUV(x))
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#define isHalfChrV(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420)
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#define isHalfChrH(x) ((x)==IMGFMT_YUY2 || (x)==IMGFMT_YV12 || (x)==IMGFMT_I420)
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#define isPacked(x) ((x)==IMGFMT_YUY2 || ((x)&IMGFMT_BGR_MASK)==IMGFMT_BGR || ((x)&IMGFMT_RGB_MASK)==IMGFMT_RGB)
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#define isGray(x) ((x)==IMGFMT_Y800)
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#define isSupportedIn(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 || (x)==IMGFMT_YUY2 \
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|| (x)==IMGFMT_BGR32|| (x)==IMGFMT_BGR24|| (x)==IMGFMT_BGR16\
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|| (x)==IMGFMT_RGB32|| (x)==IMGFMT_RGB24\
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|| (x)==IMGFMT_Y800)
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#define isSupportedOut(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 \
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|| (x)==IMGFMT_BGR32|| (x)==IMGFMT_BGR24|| (x)==IMGFMT_BGR16|| (x)==IMGFMT_BGR15)
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#define isBGR(x) ((x)==IMGFMT_BGR32|| (x)==IMGFMT_BGR24|| (x)==IMGFMT_BGR16|| (x)==IMGFMT_BGR15)
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#define RGB2YUV_SHIFT 16
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#define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
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#define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
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#define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
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#define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
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#define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
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#define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
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#define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
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#define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
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#define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
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extern int verbose; // defined in mplayer.c
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/*
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NOTES
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known BUGS with known cause (no bugreports please!, but patches are welcome :) )
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horizontal fast_bilinear MMX2 scaler reads 1-7 samples too much (might cause a sig11)
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Special versions: fast Y 1:1 scaling (no interpolation in y direction)
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TODO
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more intelligent missalignment avoidance for the horizontal scaler
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write special vertical cubic upscale version
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Optimize C code (yv12 / minmax)
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add support for packed pixel yuv input & output
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add support for Y8 output
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optimize bgr24 & bgr32
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add BGR4 output support
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write special BGR->BGR scaler
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deglobalize yuv2rgb*.c
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*/
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#define ABS(a) ((a) > 0 ? (a) : (-(a)))
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#define MIN(a,b) ((a) > (b) ? (b) : (a))
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#define MAX(a,b) ((a) < (b) ? (b) : (a))
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#ifdef ARCH_X86
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#define CAN_COMPILE_X86_ASM
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#endif
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#ifdef CAN_COMPILE_X86_ASM
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static uint64_t __attribute__((aligned(8))) yCoeff= 0x2568256825682568LL;
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static uint64_t __attribute__((aligned(8))) vrCoeff= 0x3343334333433343LL;
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static uint64_t __attribute__((aligned(8))) ubCoeff= 0x40cf40cf40cf40cfLL;
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static uint64_t __attribute__((aligned(8))) vgCoeff= 0xE5E2E5E2E5E2E5E2LL;
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static uint64_t __attribute__((aligned(8))) ugCoeff= 0xF36EF36EF36EF36ELL;
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static uint64_t __attribute__((aligned(8))) bF8= 0xF8F8F8F8F8F8F8F8LL;
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static uint64_t __attribute__((aligned(8))) bFC= 0xFCFCFCFCFCFCFCFCLL;
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static uint64_t __attribute__((aligned(8))) w400= 0x0400040004000400LL;
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static uint64_t __attribute__((aligned(8))) w80= 0x0080008000800080LL;
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static uint64_t __attribute__((aligned(8))) w10= 0x0010001000100010LL;
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static uint64_t __attribute__((aligned(8))) w02= 0x0002000200020002LL;
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static uint64_t __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
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static uint64_t __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
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static uint64_t __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
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static uint64_t __attribute__((aligned(8))) bm01010101=0x00FF00FF00FF00FFLL;
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static volatile uint64_t __attribute__((aligned(8))) b5Dither;
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static volatile uint64_t __attribute__((aligned(8))) g5Dither;
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static volatile uint64_t __attribute__((aligned(8))) g6Dither;
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static volatile uint64_t __attribute__((aligned(8))) r5Dither;
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static uint64_t __attribute__((aligned(8))) dither4[2]={
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0x0103010301030103LL,
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0x0200020002000200LL,};
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static uint64_t __attribute__((aligned(8))) dither8[2]={
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0x0602060206020602LL,
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0x0004000400040004LL,};
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static uint64_t __attribute__((aligned(8))) b16Mask= 0x001F001F001F001FLL;
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static uint64_t __attribute__((aligned(8))) g16Mask= 0x07E007E007E007E0LL;
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static uint64_t __attribute__((aligned(8))) r16Mask= 0xF800F800F800F800LL;
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static uint64_t __attribute__((aligned(8))) b15Mask= 0x001F001F001F001FLL;
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static uint64_t __attribute__((aligned(8))) g15Mask= 0x03E003E003E003E0LL;
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static uint64_t __attribute__((aligned(8))) r15Mask= 0x7C007C007C007C00LL;
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static uint64_t __attribute__((aligned(8))) M24A= 0x00FF0000FF0000FFLL;
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static uint64_t __attribute__((aligned(8))) M24B= 0xFF0000FF0000FF00LL;
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static uint64_t __attribute__((aligned(8))) M24C= 0x0000FF0000FF0000LL;
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// FIXME remove
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static uint64_t __attribute__((aligned(8))) asm_yalpha1;
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static uint64_t __attribute__((aligned(8))) asm_uvalpha1;
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#endif
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// clipping helper table for C implementations:
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static unsigned char clip_table[768];
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static unsigned short clip_table16b[768];
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static unsigned short clip_table16g[768];
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static unsigned short clip_table16r[768];
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static unsigned short clip_table15b[768];
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static unsigned short clip_table15g[768];
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static unsigned short clip_table15r[768];
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// yuv->rgb conversion tables:
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static int yuvtab_2568[256];
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static int yuvtab_3343[256];
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static int yuvtab_0c92[256];
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static int yuvtab_1a1e[256];
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static int yuvtab_40cf[256];
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// Needed for cubic scaler to catch overflows
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static int clip_yuvtab_2568[768];
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static int clip_yuvtab_3343[768];
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static int clip_yuvtab_0c92[768];
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static int clip_yuvtab_1a1e[768];
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static int clip_yuvtab_40cf[768];
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//global sws_flags from the command line
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int sws_flags=2;
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//global srcFilter
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SwsFilter src_filter= {NULL, NULL, NULL, NULL};
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float sws_lum_gblur= 0.0;
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float sws_chr_gblur= 0.0;
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int sws_chr_vshift= 0;
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int sws_chr_hshift= 0;
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float sws_chr_sharpen= 0.0;
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float sws_lum_sharpen= 0.0;
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/* cpuCaps combined from cpudetect and whats actually compiled in
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(if there is no support for something compiled in it wont appear here) */
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static CpuCaps cpuCaps;
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void (*swScale)(SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
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int srcSliceH, uint8_t* dst[], int dstStride[])=NULL;
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static SwsVector *getConvVec(SwsVector *a, SwsVector *b);
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#ifdef CAN_COMPILE_X86_ASM
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void in_asm_used_var_warning_killer()
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{
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volatile int i= yCoeff+vrCoeff+ubCoeff+vgCoeff+ugCoeff+bF8+bFC+w400+w80+w10+
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bm00001111+bm00000111+bm11111000+b16Mask+g16Mask+r16Mask+b15Mask+g15Mask+r15Mask+asm_yalpha1+ asm_uvalpha1+
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M24A+M24B+M24C+w02 + b5Dither+g5Dither+r5Dither+g6Dither+dither4[0]+dither8[0]+bm01010101;
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if(i) i=0;
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}
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#endif
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static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
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int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
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uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW)
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{
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//FIXME Optimize (just quickly writen not opti..)
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int i;
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for(i=0; i<dstW; i++)
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{
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int val=0;
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int j;
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for(j=0; j<lumFilterSize; j++)
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val += lumSrc[j][i] * lumFilter[j];
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dest[i]= MIN(MAX(val>>19, 0), 255);
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}
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if(uDest != NULL)
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for(i=0; i<(dstW>>1); i++)
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{
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int u=0;
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int v=0;
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int j;
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for(j=0; j<chrFilterSize; j++)
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{
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u += chrSrc[j][i] * chrFilter[j];
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v += chrSrc[j][i + 2048] * chrFilter[j];
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}
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uDest[i]= MIN(MAX(u>>19, 0), 255);
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vDest[i]= MIN(MAX(v>>19, 0), 255);
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}
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}
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static inline void yuv2rgbXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
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int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
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uint8_t *dest, int dstW, int dstFormat)
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{
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if(dstFormat==IMGFMT_BGR32)
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{
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int i;
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for(i=0; i<(dstW>>1); i++){
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int j;
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int Y1=0;
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int Y2=0;
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int U=0;
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int V=0;
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int Cb, Cr, Cg;
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for(j=0; j<lumFilterSize; j++)
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{
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Y1 += lumSrc[j][2*i] * lumFilter[j];
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Y2 += lumSrc[j][2*i+1] * lumFilter[j];
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}
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for(j=0; j<chrFilterSize; j++)
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{
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U += chrSrc[j][i] * chrFilter[j];
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V += chrSrc[j][i+2048] * chrFilter[j];
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}
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Y1= clip_yuvtab_2568[ (Y1>>19) + 256 ];
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Y2= clip_yuvtab_2568[ (Y2>>19) + 256 ];
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U >>= 19;
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V >>= 19;
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Cb= clip_yuvtab_40cf[U+ 256];
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Cg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];
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Cr= clip_yuvtab_3343[V+ 256];
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dest[8*i+0]=clip_table[((Y1 + Cb) >>13)];
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dest[8*i+1]=clip_table[((Y1 + Cg) >>13)];
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dest[8*i+2]=clip_table[((Y1 + Cr) >>13)];
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dest[8*i+4]=clip_table[((Y2 + Cb) >>13)];
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dest[8*i+5]=clip_table[((Y2 + Cg) >>13)];
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dest[8*i+6]=clip_table[((Y2 + Cr) >>13)];
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}
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}
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else if(dstFormat==IMGFMT_BGR24)
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{
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int i;
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for(i=0; i<(dstW>>1); i++){
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int j;
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int Y1=0;
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int Y2=0;
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int U=0;
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int V=0;
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int Cb, Cr, Cg;
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for(j=0; j<lumFilterSize; j++)
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{
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Y1 += lumSrc[j][2*i] * lumFilter[j];
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Y2 += lumSrc[j][2*i+1] * lumFilter[j];
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}
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for(j=0; j<chrFilterSize; j++)
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{
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U += chrSrc[j][i] * chrFilter[j];
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V += chrSrc[j][i+2048] * chrFilter[j];
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}
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Y1= clip_yuvtab_2568[ (Y1>>19) + 256 ];
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Y2= clip_yuvtab_2568[ (Y2>>19) + 256 ];
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U >>= 19;
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V >>= 19;
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Cb= clip_yuvtab_40cf[U+ 256];
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Cg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];
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Cr= clip_yuvtab_3343[V+ 256];
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dest[0]=clip_table[((Y1 + Cb) >>13)];
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dest[1]=clip_table[((Y1 + Cg) >>13)];
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dest[2]=clip_table[((Y1 + Cr) >>13)];
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dest[3]=clip_table[((Y2 + Cb) >>13)];
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dest[4]=clip_table[((Y2 + Cg) >>13)];
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dest[5]=clip_table[((Y2 + Cr) >>13)];
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dest+=6;
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}
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}
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else if(dstFormat==IMGFMT_BGR16)
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{
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int i;
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#ifdef DITHER1XBPP
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static int ditherb1=1<<14;
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static int ditherg1=1<<13;
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static int ditherr1=2<<14;
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static int ditherb2=3<<14;
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static int ditherg2=3<<13;
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static int ditherr2=0<<14;
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ditherb1 ^= (1^2)<<14;
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ditherg1 ^= (1^2)<<13;
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ditherr1 ^= (1^2)<<14;
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ditherb2 ^= (3^0)<<14;
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ditherg2 ^= (3^0)<<13;
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ditherr2 ^= (3^0)<<14;
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#else
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const int ditherb1=0;
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const int ditherg1=0;
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const int ditherr1=0;
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const int ditherb2=0;
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const int ditherg2=0;
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const int ditherr2=0;
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#endif
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for(i=0; i<(dstW>>1); i++){
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int j;
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int Y1=0;
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int Y2=0;
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int U=0;
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int V=0;
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int Cb, Cr, Cg;
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for(j=0; j<lumFilterSize; j++)
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{
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Y1 += lumSrc[j][2*i] * lumFilter[j];
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Y2 += lumSrc[j][2*i+1] * lumFilter[j];
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}
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for(j=0; j<chrFilterSize; j++)
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{
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U += chrSrc[j][i] * chrFilter[j];
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V += chrSrc[j][i+2048] * chrFilter[j];
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}
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Y1= clip_yuvtab_2568[ (Y1>>19) + 256 ];
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Y2= clip_yuvtab_2568[ (Y2>>19) + 256 ];
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U >>= 19;
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V >>= 19;
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Cb= clip_yuvtab_40cf[U+ 256];
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Cg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];
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Cr= clip_yuvtab_3343[V+ 256];
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((uint16_t*)dest)[2*i] =
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clip_table16b[(Y1 + Cb + ditherb1) >>13] |
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clip_table16g[(Y1 + Cg + ditherg1) >>13] |
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clip_table16r[(Y1 + Cr + ditherr1) >>13];
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((uint16_t*)dest)[2*i+1] =
|
|
clip_table16b[(Y2 + Cb + ditherb2) >>13] |
|
|
clip_table16g[(Y2 + Cg + ditherg2) >>13] |
|
|
clip_table16r[(Y2 + Cr + ditherr2) >>13];
|
|
}
|
|
}
|
|
else if(dstFormat==IMGFMT_BGR15)
|
|
{
|
|
int i;
|
|
#ifdef DITHER1XBPP
|
|
static int ditherb1=1<<14;
|
|
static int ditherg1=1<<14;
|
|
static int ditherr1=2<<14;
|
|
static int ditherb2=3<<14;
|
|
static int ditherg2=3<<14;
|
|
static int ditherr2=0<<14;
|
|
|
|
ditherb1 ^= (1^2)<<14;
|
|
ditherg1 ^= (1^2)<<14;
|
|
ditherr1 ^= (1^2)<<14;
|
|
ditherb2 ^= (3^0)<<14;
|
|
ditherg2 ^= (3^0)<<14;
|
|
ditherr2 ^= (3^0)<<14;
|
|
#else
|
|
const int ditherb1=0;
|
|
const int ditherg1=0;
|
|
const int ditherr1=0;
|
|
const int ditherb2=0;
|
|
const int ditherg2=0;
|
|
const int ditherr2=0;
|
|
#endif
|
|
for(i=0; i<(dstW>>1); i++){
|
|
int j;
|
|
int Y1=0;
|
|
int Y2=0;
|
|
int U=0;
|
|
int V=0;
|
|
int Cb, Cr, Cg;
|
|
for(j=0; j<lumFilterSize; j++)
|
|
{
|
|
Y1 += lumSrc[j][2*i] * lumFilter[j];
|
|
Y2 += lumSrc[j][2*i+1] * lumFilter[j];
|
|
}
|
|
for(j=0; j<chrFilterSize; j++)
|
|
{
|
|
U += chrSrc[j][i] * chrFilter[j];
|
|
V += chrSrc[j][i+2048] * chrFilter[j];
|
|
}
|
|
Y1= clip_yuvtab_2568[ (Y1>>19) + 256 ];
|
|
Y2= clip_yuvtab_2568[ (Y2>>19) + 256 ];
|
|
U >>= 19;
|
|
V >>= 19;
|
|
|
|
Cb= clip_yuvtab_40cf[U+ 256];
|
|
Cg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];
|
|
Cr= clip_yuvtab_3343[V+ 256];
|
|
|
|
((uint16_t*)dest)[2*i] =
|
|
clip_table15b[(Y1 + Cb + ditherb1) >>13] |
|
|
clip_table15g[(Y1 + Cg + ditherg1) >>13] |
|
|
clip_table15r[(Y1 + Cr + ditherr1) >>13];
|
|
|
|
((uint16_t*)dest)[2*i+1] =
|
|
clip_table15b[(Y2 + Cb + ditherb2) >>13] |
|
|
clip_table15g[(Y2 + Cg + ditherg2) >>13] |
|
|
clip_table15r[(Y2 + Cr + ditherr2) >>13];
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
|
|
//Plain C versions
|
|
#if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT)
|
|
#define COMPILE_C
|
|
#endif
|
|
|
|
#ifdef CAN_COMPILE_X86_ASM
|
|
|
|
#if (defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
|
|
#define COMPILE_MMX
|
|
#endif
|
|
|
|
#if defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)
|
|
#define COMPILE_MMX2
|
|
#endif
|
|
|
|
#if (defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
|
|
#define COMPILE_3DNOW
|
|
#endif
|
|
#endif //CAN_COMPILE_X86_ASM
|
|
|
|
#undef HAVE_MMX
|
|
#undef HAVE_MMX2
|
|
#undef HAVE_3DNOW
|
|
|
|
#ifdef COMPILE_C
|
|
#undef HAVE_MMX
|
|
#undef HAVE_MMX2
|
|
#undef HAVE_3DNOW
|
|
#define RENAME(a) a ## _C
|
|
#include "swscale_template.c"
|
|
#endif
|
|
|
|
#ifdef CAN_COMPILE_X86_ASM
|
|
|
|
//X86 versions
|
|
/*
|
|
#undef RENAME
|
|
#undef HAVE_MMX
|
|
#undef HAVE_MMX2
|
|
#undef HAVE_3DNOW
|
|
#define ARCH_X86
|
|
#define RENAME(a) a ## _X86
|
|
#include "swscale_template.c"
|
|
*/
|
|
//MMX versions
|
|
#ifdef COMPILE_MMX
|
|
#undef RENAME
|
|
#define HAVE_MMX
|
|
#undef HAVE_MMX2
|
|
#undef HAVE_3DNOW
|
|
#define RENAME(a) a ## _MMX
|
|
#include "swscale_template.c"
|
|
#endif
|
|
|
|
//MMX2 versions
|
|
#ifdef COMPILE_MMX2
|
|
#undef RENAME
|
|
#define HAVE_MMX
|
|
#define HAVE_MMX2
|
|
#undef HAVE_3DNOW
|
|
#define RENAME(a) a ## _MMX2
|
|
#include "swscale_template.c"
|
|
#endif
|
|
|
|
//3DNOW versions
|
|
#ifdef COMPILE_3DNOW
|
|
#undef RENAME
|
|
#define HAVE_MMX
|
|
#undef HAVE_MMX2
|
|
#define HAVE_3DNOW
|
|
#define RENAME(a) a ## _3DNow
|
|
#include "swscale_template.c"
|
|
#endif
|
|
|
|
#endif //CAN_COMPILE_X86_ASM
|
|
|
|
// minor note: the HAVE_xyz is messed up after that line so dont use it
|
|
|
|
|
|
// old global scaler, dont use for new code
|
|
// will use sws_flags from the command line
|
|
void SwScale_YV12slice(unsigned char* src[], int srcStride[], int srcSliceY ,
|
|
int srcSliceH, uint8_t* dst[], int dstStride, int dstbpp,
|
|
int srcW, int srcH, int dstW, int dstH){
|
|
|
|
static SwsContext *context=NULL;
|
|
int dstFormat;
|
|
int dstStride3[3]= {dstStride, dstStride>>1, dstStride>>1};
|
|
|
|
switch(dstbpp)
|
|
{
|
|
case 8 : dstFormat= IMGFMT_Y8; break;
|
|
case 12: dstFormat= IMGFMT_YV12; break;
|
|
case 15: dstFormat= IMGFMT_BGR15; break;
|
|
case 16: dstFormat= IMGFMT_BGR16; break;
|
|
case 24: dstFormat= IMGFMT_BGR24; break;
|
|
case 32: dstFormat= IMGFMT_BGR32; break;
|
|
default: return;
|
|
}
|
|
|
|
if(!context) context=getSwsContextFromCmdLine(srcW, srcH, IMGFMT_YV12, dstW, dstH, dstFormat);
|
|
|
|
context->swScale(context, src, srcStride, srcSliceY, srcSliceH, dst, dstStride3);
|
|
}
|
|
|
|
// will use sws_flags & src_filter (from cmd line)
|
|
SwsContext *getSwsContextFromCmdLine(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat)
|
|
{
|
|
int flags=0;
|
|
static int firstTime=1;
|
|
|
|
#ifdef ARCH_X86
|
|
if(gCpuCaps.hasMMX)
|
|
asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
|
|
#endif
|
|
if(firstTime)
|
|
{
|
|
firstTime=0;
|
|
flags= SWS_PRINT_INFO;
|
|
}
|
|
else if(verbose>1) flags= SWS_PRINT_INFO;
|
|
|
|
if(src_filter.lumH) freeVec(src_filter.lumH);
|
|
if(src_filter.lumV) freeVec(src_filter.lumV);
|
|
if(src_filter.chrH) freeVec(src_filter.chrH);
|
|
if(src_filter.chrV) freeVec(src_filter.chrV);
|
|
|
|
if(sws_lum_gblur!=0.0){
|
|
src_filter.lumH= getGaussianVec(sws_lum_gblur, 3.0);
|
|
src_filter.lumV= getGaussianVec(sws_lum_gblur, 3.0);
|
|
}else{
|
|
src_filter.lumH= getIdentityVec();
|
|
src_filter.lumV= getIdentityVec();
|
|
}
|
|
|
|
if(sws_chr_gblur!=0.0){
|
|
src_filter.chrH= getGaussianVec(sws_chr_gblur, 3.0);
|
|
src_filter.chrV= getGaussianVec(sws_chr_gblur, 3.0);
|
|
}else{
|
|
src_filter.chrH= getIdentityVec();
|
|
src_filter.chrV= getIdentityVec();
|
|
}
|
|
|
|
if(sws_chr_sharpen!=0.0){
|
|
SwsVector *g= getConstVec(-1.0, 3);
|
|
SwsVector *id= getConstVec(10.0/sws_chr_sharpen, 1);
|
|
g->coeff[1]=2.0;
|
|
addVec(id, g);
|
|
convVec(src_filter.chrH, id);
|
|
convVec(src_filter.chrV, id);
|
|
freeVec(g);
|
|
freeVec(id);
|
|
}
|
|
|
|
if(sws_lum_sharpen!=0.0){
|
|
SwsVector *g= getConstVec(-1.0, 3);
|
|
SwsVector *id= getConstVec(10.0/sws_lum_sharpen, 1);
|
|
g->coeff[1]=2.0;
|
|
addVec(id, g);
|
|
convVec(src_filter.lumH, id);
|
|
convVec(src_filter.lumV, id);
|
|
freeVec(g);
|
|
freeVec(id);
|
|
}
|
|
|
|
if(sws_chr_hshift)
|
|
shiftVec(src_filter.chrH, sws_chr_hshift);
|
|
|
|
if(sws_chr_vshift)
|
|
shiftVec(src_filter.chrV, sws_chr_vshift);
|
|
|
|
normalizeVec(src_filter.chrH, 1.0);
|
|
normalizeVec(src_filter.chrV, 1.0);
|
|
normalizeVec(src_filter.lumH, 1.0);
|
|
normalizeVec(src_filter.lumV, 1.0);
|
|
|
|
if(verbose > 1) printVec(src_filter.chrH);
|
|
if(verbose > 1) printVec(src_filter.lumH);
|
|
|
|
switch(sws_flags)
|
|
{
|
|
case 0: flags|= SWS_FAST_BILINEAR; break;
|
|
case 1: flags|= SWS_BILINEAR; break;
|
|
case 2: flags|= SWS_BICUBIC; break;
|
|
case 3: flags|= SWS_X; break;
|
|
case 4: flags|= SWS_POINT; break;
|
|
case 5: flags|= SWS_AREA; break;
|
|
default:flags|= SWS_BILINEAR; break;
|
|
}
|
|
|
|
return getSwsContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, &src_filter, NULL);
|
|
}
|
|
|
|
|
|
static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
|
|
int srcW, int dstW, int filterAlign, int one, int flags,
|
|
SwsVector *srcFilter, SwsVector *dstFilter)
|
|
{
|
|
int i;
|
|
int filterSize;
|
|
int filter2Size;
|
|
int minFilterSize;
|
|
double *filter=NULL;
|
|
double *filter2=NULL;
|
|
#ifdef ARCH_X86
|
|
if(gCpuCaps.hasMMX)
|
|
asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
|
|
#endif
|
|
|
|
// Note the +1 is for the MMXscaler which reads over the end
|
|
*filterPos = (int16_t*)memalign(8, (dstW+1)*sizeof(int16_t));
|
|
|
|
if(ABS(xInc - 0x10000) <10) // unscaled
|
|
{
|
|
int i;
|
|
filterSize= 1;
|
|
filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
|
|
for(i=0; i<dstW*filterSize; i++) filter[i]=0;
|
|
|
|
for(i=0; i<dstW; i++)
|
|
{
|
|
filter[i*filterSize]=1;
|
|
(*filterPos)[i]=i;
|
|
}
|
|
|
|
}
|
|
else if(flags&SWS_POINT) // lame looking point sampling mode
|
|
{
|
|
int i;
|
|
int xDstInSrc;
|
|
filterSize= 1;
|
|
filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
|
|
|
|
xDstInSrc= xInc/2 - 0x8000;
|
|
for(i=0; i<dstW; i++)
|
|
{
|
|
int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
|
|
|
|
(*filterPos)[i]= xx;
|
|
filter[i]= 1.0;
|
|
xDstInSrc+= xInc;
|
|
}
|
|
}
|
|
else if(xInc <= (1<<16) || (flags&SWS_FAST_BILINEAR)) // upscale
|
|
{
|
|
int i;
|
|
int xDstInSrc;
|
|
if (flags&SWS_BICUBIC) filterSize= 4;
|
|
else if(flags&SWS_X ) filterSize= 4;
|
|
else filterSize= 2; // SWS_BILINEAR / SWS_AREA
|
|
// printf("%d %d %d\n", filterSize, srcW, dstW);
|
|
filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
|
|
|
|
xDstInSrc= xInc/2 - 0x8000;
|
|
for(i=0; i<dstW; i++)
|
|
{
|
|
int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
|
|
int j;
|
|
|
|
(*filterPos)[i]= xx;
|
|
if((flags & SWS_BICUBIC) || (flags & SWS_X))
|
|
{
|
|
double d= ABS(((xx+1)<<16) - xDstInSrc)/(double)(1<<16);
|
|
double y1,y2,y3,y4;
|
|
double A= -0.6;
|
|
if(flags & SWS_BICUBIC){
|
|
// Equation is from VirtualDub
|
|
y1 = ( + A*d - 2.0*A*d*d + A*d*d*d);
|
|
y2 = (+ 1.0 - (A+3.0)*d*d + (A+2.0)*d*d*d);
|
|
y3 = ( - A*d + (2.0*A+3.0)*d*d - (A+2.0)*d*d*d);
|
|
y4 = ( + A*d*d - A*d*d*d);
|
|
}else{
|
|
// cubic interpolation (derived it myself)
|
|
y1 = ( -2.0*d + 3.0*d*d - 1.0*d*d*d)/6.0;
|
|
y2 = (6.0 -3.0*d - 6.0*d*d + 3.0*d*d*d)/6.0;
|
|
y3 = ( +6.0*d + 3.0*d*d - 3.0*d*d*d)/6.0;
|
|
y4 = ( -1.0*d + 1.0*d*d*d)/6.0;
|
|
}
|
|
|
|
// printf("%d %d %d \n", coeff, (int)d, xDstInSrc);
|
|
filter[i*filterSize + 0]= y1;
|
|
filter[i*filterSize + 1]= y2;
|
|
filter[i*filterSize + 2]= y3;
|
|
filter[i*filterSize + 3]= y4;
|
|
// printf("%1.3f %1.3f %1.3f %1.3f %1.3f\n",d , y1, y2, y3, y4);
|
|
}
|
|
else
|
|
{
|
|
//Bilinear upscale / linear interpolate / Area averaging
|
|
for(j=0; j<filterSize; j++)
|
|
{
|
|
double d= ABS((xx<<16) - xDstInSrc)/(double)(1<<16);
|
|
double coeff= 1.0 - d;
|
|
if(coeff<0) coeff=0;
|
|
// printf("%d %d %d \n", coeff, (int)d, xDstInSrc);
|
|
filter[i*filterSize + j]= coeff;
|
|
xx++;
|
|
}
|
|
}
|
|
xDstInSrc+= xInc;
|
|
}
|
|
}
|
|
else // downscale
|
|
{
|
|
int xDstInSrc;
|
|
if(flags&SWS_BICUBIC) filterSize= (int)ceil(1 + 4.0*srcW / (double)dstW);
|
|
else if(flags&SWS_X) filterSize= (int)ceil(1 + 4.0*srcW / (double)dstW);
|
|
else if(flags&SWS_AREA) filterSize= (int)ceil(1 + 1.0*srcW / (double)dstW);
|
|
else /* BILINEAR */ filterSize= (int)ceil(1 + 2.0*srcW / (double)dstW);
|
|
// printf("%d %d %d\n", *filterSize, srcW, dstW);
|
|
filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
|
|
|
|
xDstInSrc= xInc/2 - 0x8000;
|
|
for(i=0; i<dstW; i++)
|
|
{
|
|
int xx= (int)((double)xDstInSrc/(double)(1<<16) - (filterSize-1)*0.5 + 0.5);
|
|
int j;
|
|
(*filterPos)[i]= xx;
|
|
for(j=0; j<filterSize; j++)
|
|
{
|
|
double d= ABS((xx<<16) - xDstInSrc)/(double)xInc;
|
|
double coeff;
|
|
if((flags & SWS_BICUBIC) || (flags & SWS_X))
|
|
{
|
|
double A= -0.75;
|
|
// d*=2;
|
|
// Equation is from VirtualDub
|
|
if(d<1.0)
|
|
coeff = (1.0 - (A+3.0)*d*d + (A+2.0)*d*d*d);
|
|
else if(d<2.0)
|
|
coeff = (-4.0*A + 8.0*A*d - 5.0*A*d*d + A*d*d*d);
|
|
else
|
|
coeff=0.0;
|
|
}
|
|
else if(flags & SWS_AREA)
|
|
{
|
|
double srcPixelSize= (1<<16)/(double)xInc;
|
|
if(d + srcPixelSize/2 < 0.5) coeff= 1.0;
|
|
else if(d - srcPixelSize/2 < 0.5) coeff= (0.5-d)/srcPixelSize + 0.5;
|
|
else coeff=0.0;
|
|
}
|
|
else
|
|
{
|
|
coeff= 1.0 - d;
|
|
if(coeff<0) coeff=0;
|
|
}
|
|
// printf("%1.3f %2.3f %d \n", coeff, d, xDstInSrc);
|
|
filter[i*filterSize + j]= coeff;
|
|
xx++;
|
|
}
|
|
xDstInSrc+= xInc;
|
|
}
|
|
}
|
|
|
|
/* apply src & dst Filter to filter -> filter2
|
|
free(filter);
|
|
*/
|
|
filter2Size= filterSize;
|
|
if(srcFilter) filter2Size+= srcFilter->length - 1;
|
|
if(dstFilter) filter2Size+= dstFilter->length - 1;
|
|
filter2= (double*)memalign(8, filter2Size*dstW*sizeof(double));
|
|
|
|
for(i=0; i<dstW; i++)
|
|
{
|
|
int j;
|
|
SwsVector scaleFilter;
|
|
SwsVector *outVec;
|
|
|
|
scaleFilter.coeff= filter + i*filterSize;
|
|
scaleFilter.length= filterSize;
|
|
|
|
if(srcFilter) outVec= getConvVec(srcFilter, &scaleFilter);
|
|
else outVec= &scaleFilter;
|
|
|
|
ASSERT(outVec->length == filter2Size)
|
|
//FIXME dstFilter
|
|
|
|
for(j=0; j<outVec->length; j++)
|
|
{
|
|
filter2[i*filter2Size + j]= outVec->coeff[j];
|
|
}
|
|
|
|
(*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
|
|
|
|
if(outVec != &scaleFilter) freeVec(outVec);
|
|
}
|
|
free(filter); filter=NULL;
|
|
|
|
/* try to reduce the filter-size (step1 find size and shift left) */
|
|
// Assume its near normalized (*0.5 or *2.0 is ok but * 0.001 is not)
|
|
minFilterSize= 0;
|
|
for(i=dstW-1; i>=0; i--)
|
|
{
|
|
int min= filter2Size;
|
|
int j;
|
|
double cutOff=0.0;
|
|
|
|
/* get rid off near zero elements on the left by shifting left */
|
|
for(j=0; j<filter2Size; j++)
|
|
{
|
|
int k;
|
|
cutOff += ABS(filter2[i*filter2Size]);
|
|
|
|
if(cutOff > SWS_MAX_REDUCE_CUTOFF) break;
|
|
|
|
/* preserve Monotonicity because the core cant handle the filter otherwise */
|
|
if(i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
|
|
|
|
// Move filter coeffs left
|
|
for(k=1; k<filter2Size; k++)
|
|
filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
|
|
filter2[i*filter2Size + k - 1]= 0.0;
|
|
(*filterPos)[i]++;
|
|
}
|
|
|
|
cutOff=0.0;
|
|
/* count near zeros on the right */
|
|
for(j=filter2Size-1; j>0; j--)
|
|
{
|
|
cutOff += ABS(filter2[i*filter2Size + j]);
|
|
|
|
if(cutOff > SWS_MAX_REDUCE_CUTOFF) break;
|
|
min--;
|
|
}
|
|
|
|
if(min>minFilterSize) minFilterSize= min;
|
|
}
|
|
|
|
filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
|
|
filter= (double*)memalign(8, filterSize*dstW*sizeof(double));
|
|
*outFilterSize= filterSize;
|
|
|
|
if((flags&SWS_PRINT_INFO) && verbose)
|
|
printf("SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
|
|
/* try to reduce the filter-size (step2 reduce it) */
|
|
for(i=0; i<dstW; i++)
|
|
{
|
|
int j;
|
|
|
|
for(j=0; j<filterSize; j++)
|
|
{
|
|
if(j>=filter2Size) filter[i*filterSize + j]= 0.0;
|
|
else filter[i*filterSize + j]= filter2[i*filter2Size + j];
|
|
}
|
|
}
|
|
free(filter2); filter2=NULL;
|
|
|
|
ASSERT(filterSize > 0)
|
|
|
|
//FIXME try to align filterpos if possible
|
|
|
|
//fix borders
|
|
for(i=0; i<dstW; i++)
|
|
{
|
|
int j;
|
|
if((*filterPos)[i] < 0)
|
|
{
|
|
// Move filter coeffs left to compensate for filterPos
|
|
for(j=1; j<filterSize; j++)
|
|
{
|
|
int left= MAX(j + (*filterPos)[i], 0);
|
|
filter[i*filterSize + left] += filter[i*filterSize + j];
|
|
filter[i*filterSize + j]=0;
|
|
}
|
|
(*filterPos)[i]= 0;
|
|
}
|
|
|
|
if((*filterPos)[i] + filterSize > srcW)
|
|
{
|
|
int shift= (*filterPos)[i] + filterSize - srcW;
|
|
// Move filter coeffs right to compensate for filterPos
|
|
for(j=filterSize-2; j>=0; j--)
|
|
{
|
|
int right= MIN(j + shift, filterSize-1);
|
|
filter[i*filterSize +right] += filter[i*filterSize +j];
|
|
filter[i*filterSize +j]=0;
|
|
}
|
|
(*filterPos)[i]= srcW - filterSize;
|
|
}
|
|
}
|
|
|
|
// Note the +1 is for the MMXscaler which reads over the end
|
|
*outFilter= (int16_t*)memalign(8, *outFilterSize*(dstW+1)*sizeof(int16_t));
|
|
memset(*outFilter, 0, *outFilterSize*(dstW+1)*sizeof(int16_t));
|
|
|
|
/* Normalize & Store in outFilter */
|
|
for(i=0; i<dstW; i++)
|
|
{
|
|
int j;
|
|
double sum=0;
|
|
double scale= one;
|
|
for(j=0; j<filterSize; j++)
|
|
{
|
|
sum+= filter[i*filterSize + j];
|
|
}
|
|
scale/= sum;
|
|
for(j=0; j<filterSize; j++)
|
|
{
|
|
(*outFilter)[i*(*outFilterSize) + j]= (int)(filter[i*filterSize + j]*scale);
|
|
}
|
|
}
|
|
|
|
(*filterPos)[dstW]= (*filterPos)[dstW-1]; // the MMX scaler will read over the end
|
|
for(i=0; i<*outFilterSize; i++)
|
|
{
|
|
int j= dstW*(*outFilterSize);
|
|
(*outFilter)[j + i]= (*outFilter)[j + i - (*outFilterSize)];
|
|
}
|
|
|
|
free(filter);
|
|
}
|
|
|
|
#ifdef ARCH_X86
|
|
static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode)
|
|
{
|
|
uint8_t *fragment;
|
|
int imm8OfPShufW1;
|
|
int imm8OfPShufW2;
|
|
int fragmentLength;
|
|
|
|
int xpos, i;
|
|
|
|
// create an optimized horizontal scaling routine
|
|
|
|
//code fragment
|
|
|
|
asm volatile(
|
|
"jmp 9f \n\t"
|
|
// Begin
|
|
"0: \n\t"
|
|
"movq (%%esi), %%mm0 \n\t" //FIXME Alignment
|
|
"movq %%mm0, %%mm1 \n\t"
|
|
"psrlq $8, %%mm0 \n\t"
|
|
"punpcklbw %%mm7, %%mm1 \n\t"
|
|
"movq %%mm2, %%mm3 \n\t"
|
|
"punpcklbw %%mm7, %%mm0 \n\t"
|
|
"addw %%bx, %%cx \n\t" //2*xalpha += (4*lumXInc)&0xFFFF
|
|
"pshufw $0xFF, %%mm1, %%mm1 \n\t"
|
|
"1: \n\t"
|
|
"adcl %%edx, %%esi \n\t" //xx+= (4*lumXInc)>>16 + carry
|
|
"pshufw $0xFF, %%mm0, %%mm0 \n\t"
|
|
"2: \n\t"
|
|
"psrlw $9, %%mm3 \n\t"
|
|
"psubw %%mm1, %%mm0 \n\t"
|
|
"pmullw %%mm3, %%mm0 \n\t"
|
|
"paddw %%mm6, %%mm2 \n\t" // 2*alpha += xpos&0xFFFF
|
|
"psllw $7, %%mm1 \n\t"
|
|
"paddw %%mm1, %%mm0 \n\t"
|
|
|
|
"movq %%mm0, (%%edi, %%eax) \n\t"
|
|
|
|
"addl $8, %%eax \n\t"
|
|
// End
|
|
"9: \n\t"
|
|
// "int $3\n\t"
|
|
"leal 0b, %0 \n\t"
|
|
"leal 1b, %1 \n\t"
|
|
"leal 2b, %2 \n\t"
|
|
"decl %1 \n\t"
|
|
"decl %2 \n\t"
|
|
"subl %0, %1 \n\t"
|
|
"subl %0, %2 \n\t"
|
|
"leal 9b, %3 \n\t"
|
|
"subl %0, %3 \n\t"
|
|
:"=r" (fragment), "=r" (imm8OfPShufW1), "=r" (imm8OfPShufW2),
|
|
"=r" (fragmentLength)
|
|
);
|
|
|
|
xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
|
|
|
|
for(i=0; i<dstW/8; i++)
|
|
{
|
|
int xx=xpos>>16;
|
|
|
|
if((i&3) == 0)
|
|
{
|
|
int a=0;
|
|
int b=((xpos+xInc)>>16) - xx;
|
|
int c=((xpos+xInc*2)>>16) - xx;
|
|
int d=((xpos+xInc*3)>>16) - xx;
|
|
|
|
memcpy(funnyCode + fragmentLength*i/4, fragment, fragmentLength);
|
|
|
|
funnyCode[fragmentLength*i/4 + imm8OfPShufW1]=
|
|
funnyCode[fragmentLength*i/4 + imm8OfPShufW2]=
|
|
a | (b<<2) | (c<<4) | (d<<6);
|
|
|
|
// if we dont need to read 8 bytes than dont :), reduces the chance of
|
|
// crossing a cache line
|
|
if(d<3) funnyCode[fragmentLength*i/4 + 1]= 0x6E;
|
|
|
|
funnyCode[fragmentLength*(i+4)/4]= RET;
|
|
}
|
|
xpos+=xInc;
|
|
}
|
|
}
|
|
#endif // ARCH_X86
|
|
|
|
//FIXME remove
|
|
void SwScale_Init(){
|
|
}
|
|
|
|
static void globalInit(){
|
|
// generating tables:
|
|
int i;
|
|
for(i=0; i<768; i++){
|
|
int c= MIN(MAX(i-256, 0), 255);
|
|
clip_table[i]=c;
|
|
yuvtab_2568[c]= clip_yuvtab_2568[i]=(0x2568*(c-16))+(256<<13);
|
|
yuvtab_3343[c]= clip_yuvtab_3343[i]=0x3343*(c-128);
|
|
yuvtab_0c92[c]= clip_yuvtab_0c92[i]=-0x0c92*(c-128);
|
|
yuvtab_1a1e[c]= clip_yuvtab_1a1e[i]=-0x1a1e*(c-128);
|
|
yuvtab_40cf[c]= clip_yuvtab_40cf[i]=0x40cf*(c-128);
|
|
}
|
|
|
|
for(i=0; i<768; i++)
|
|
{
|
|
int v= clip_table[i];
|
|
clip_table16b[i]= le2me_16( v>>3);
|
|
clip_table16g[i]= le2me_16((v<<3)&0x07E0);
|
|
clip_table16r[i]= le2me_16((v<<8)&0xF800);
|
|
clip_table15b[i]= le2me_16( v>>3);
|
|
clip_table15g[i]= le2me_16((v<<2)&0x03E0);
|
|
clip_table15r[i]= le2me_16((v<<7)&0x7C00);
|
|
}
|
|
|
|
cpuCaps= gCpuCaps;
|
|
|
|
#ifdef RUNTIME_CPUDETECT
|
|
#ifdef CAN_COMPILE_X86_ASM
|
|
// ordered per speed fasterst first
|
|
if(gCpuCaps.hasMMX2)
|
|
swScale= swScale_MMX2;
|
|
else if(gCpuCaps.has3DNow)
|
|
swScale= swScale_3DNow;
|
|
else if(gCpuCaps.hasMMX)
|
|
swScale= swScale_MMX;
|
|
else
|
|
swScale= swScale_C;
|
|
|
|
#else
|
|
swScale= swScale_C;
|
|
cpuCaps.hasMMX2 = cpuCaps.hasMMX = cpuCaps.has3DNow = 0;
|
|
#endif
|
|
#else //RUNTIME_CPUDETECT
|
|
#ifdef HAVE_MMX2
|
|
swScale= swScale_MMX2;
|
|
cpuCaps.has3DNow = 0;
|
|
#elif defined (HAVE_3DNOW)
|
|
swScale= swScale_3DNow;
|
|
cpuCaps.hasMMX2 = 0;
|
|
#elif defined (HAVE_MMX)
|
|
swScale= swScale_MMX;
|
|
cpuCaps.hasMMX2 = cpuCaps.has3DNow = 0;
|
|
#else
|
|
swScale= swScale_C;
|
|
cpuCaps.hasMMX2 = cpuCaps.hasMMX = cpuCaps.has3DNow = 0;
|
|
#endif
|
|
#endif //!RUNTIME_CPUDETECT
|
|
}
|
|
|
|
/* Warper functions for yuv2bgr */
|
|
static void planarYuvToBgr(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
|
|
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
|
|
|
|
if(c->srcFormat==IMGFMT_YV12)
|
|
yuv2rgb( dst,src[0],src[1],src[2],c->srcW,srcSliceH,dstStride[0],srcStride[0],srcStride[1] );
|
|
else /* I420 & IYUV */
|
|
yuv2rgb( dst,src[0],src[2],src[1],c->srcW,srcSliceH,dstStride[0],srcStride[0],srcStride[1] );
|
|
}
|
|
|
|
static void bgr24to32Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
|
|
if(dstStride[0]*3==srcStride[0]*4)
|
|
rgb24to32(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*dstStride[0]>>2);
|
|
else
|
|
{
|
|
int i;
|
|
uint8_t *srcPtr= src[0];
|
|
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
|
|
|
|
for(i=0; i<srcSliceH; i++)
|
|
{
|
|
rgb24to32(srcPtr, dstPtr, c->srcW);
|
|
srcPtr+= srcStride[0];
|
|
dstPtr+= dstStride[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
static void bgr32to24Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
|
|
if(dstStride[0]*4==srcStride[0]*3)
|
|
rgb32to24(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]>>2);
|
|
else
|
|
{
|
|
int i;
|
|
uint8_t *srcPtr= src[0];
|
|
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
|
|
|
|
for(i=0; i<srcSliceH; i++)
|
|
{
|
|
rgb32to24(srcPtr, dstPtr, c->srcW);
|
|
srcPtr+= srcStride[0];
|
|
dstPtr+= dstStride[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* unscaled copy like stuff (assumes nearly identical formats) */
|
|
static void simpleCopy(SwsContext *c, uint8_t* srcParam[], int srcStrideParam[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
|
|
|
|
int srcStride[3];
|
|
uint8_t *src[3];
|
|
uint8_t *dst[3];
|
|
|
|
if(c->srcFormat == IMGFMT_I420){
|
|
src[0]= srcParam[0];
|
|
src[1]= srcParam[2];
|
|
src[2]= srcParam[1];
|
|
srcStride[0]= srcStrideParam[0];
|
|
srcStride[1]= srcStrideParam[2];
|
|
srcStride[2]= srcStrideParam[1];
|
|
}
|
|
else if(c->srcFormat==IMGFMT_YV12){
|
|
src[0]= srcParam[0];
|
|
src[1]= srcParam[1];
|
|
src[2]= srcParam[2];
|
|
srcStride[0]= srcStrideParam[0];
|
|
srcStride[1]= srcStrideParam[1];
|
|
srcStride[2]= srcStrideParam[2];
|
|
}
|
|
else if(isPacked(c->srcFormat) || isGray(c->srcFormat)){
|
|
src[0]= srcParam[0];
|
|
src[1]=
|
|
src[2]= NULL;
|
|
srcStride[0]= srcStrideParam[0];
|
|
srcStride[1]=
|
|
srcStride[2]= 0;
|
|
}
|
|
|
|
if(c->dstFormat == IMGFMT_I420){
|
|
dst[0]= dstParam[0];
|
|
dst[1]= dstParam[2];
|
|
dst[2]= dstParam[1];
|
|
|
|
}else{
|
|
dst[0]= dstParam[0];
|
|
dst[1]= dstParam[1];
|
|
dst[2]= dstParam[2];
|
|
}
|
|
|
|
if(isPacked(c->srcFormat))
|
|
{
|
|
if(dstStride[0]==srcStride[0])
|
|
memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
|
|
else
|
|
{
|
|
int i;
|
|
uint8_t *srcPtr= src[0];
|
|
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
|
|
int length=0;
|
|
|
|
/* universal length finder */
|
|
while(length+c->srcW <= dstStride[0]
|
|
&& length+c->srcW <= srcStride[0]) length+= c->srcW;
|
|
ASSERT(length!=0);
|
|
|
|
for(i=0; i<srcSliceH; i++)
|
|
{
|
|
memcpy(dstPtr, srcPtr, length);
|
|
srcPtr+= srcStride[0];
|
|
dstPtr+= dstStride[0];
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{ /* Planar YUV */
|
|
int plane;
|
|
for(plane=0; plane<3; plane++)
|
|
{
|
|
int length= plane==0 ? c->srcW : ((c->srcW+1)>>1);
|
|
int y= plane==0 ? srcSliceY: ((srcSliceY+1)>>1);
|
|
int height= plane==0 ? srcSliceH: ((srcSliceH+1)>>1);
|
|
|
|
if(dstStride[plane]==srcStride[plane])
|
|
memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]);
|
|
else
|
|
{
|
|
int i;
|
|
uint8_t *srcPtr= src[plane];
|
|
uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
|
|
for(i=0; i<height; i++)
|
|
{
|
|
memcpy(dstPtr, srcPtr, length);
|
|
srcPtr+= srcStride[plane];
|
|
dstPtr+= dstStride[plane];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
|
|
SwsFilter *srcFilter, SwsFilter *dstFilter){
|
|
|
|
SwsContext *c;
|
|
int i;
|
|
int usesFilter;
|
|
SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
|
|
|
|
#ifdef ARCH_X86
|
|
if(gCpuCaps.hasMMX)
|
|
asm volatile("emms\n\t"::: "memory");
|
|
#endif
|
|
|
|
if(swScale==NULL) globalInit();
|
|
|
|
/* avoid dupplicate Formats, so we dont need to check to much */
|
|
if(srcFormat==IMGFMT_IYUV) srcFormat=IMGFMT_I420;
|
|
if(srcFormat==IMGFMT_Y8) srcFormat=IMGFMT_Y800;
|
|
if(dstFormat==IMGFMT_Y8) dstFormat=IMGFMT_Y800;
|
|
|
|
if(!isSupportedIn(srcFormat))
|
|
{
|
|
fprintf(stderr, "swScaler: %s is not supported as input format\n", vo_format_name(srcFormat));
|
|
return NULL;
|
|
}
|
|
if(!isSupportedOut(dstFormat))
|
|
{
|
|
fprintf(stderr, "swScaler: %s is not supported as output format\n", vo_format_name(dstFormat));
|
|
return NULL;
|
|
}
|
|
|
|
/* sanity check */
|
|
if(srcW<4 || srcH<1 || dstW<8 || dstH<1) //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code
|
|
{
|
|
fprintf(stderr, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
|
|
srcW, srcH, dstW, dstH);
|
|
return NULL;
|
|
}
|
|
|
|
if(!dstFilter) dstFilter= &dummyFilter;
|
|
if(!srcFilter) srcFilter= &dummyFilter;
|
|
|
|
c= memalign(64, sizeof(SwsContext));
|
|
memset(c, 0, sizeof(SwsContext));
|
|
|
|
c->srcW= srcW;
|
|
c->srcH= srcH;
|
|
c->dstW= dstW;
|
|
c->dstH= dstH;
|
|
c->lumXInc= ((srcW<<16) + (dstW>>1))/dstW;
|
|
c->lumYInc= ((srcH<<16) + (dstH>>1))/dstH;
|
|
c->flags= flags;
|
|
c->dstFormat= dstFormat;
|
|
c->srcFormat= srcFormat;
|
|
|
|
usesFilter=0;
|
|
if(dstFilter->lumV!=NULL && dstFilter->lumV->length>1) usesFilter=1;
|
|
if(dstFilter->lumH!=NULL && dstFilter->lumH->length>1) usesFilter=1;
|
|
if(dstFilter->chrV!=NULL && dstFilter->chrV->length>1) usesFilter=1;
|
|
if(dstFilter->chrH!=NULL && dstFilter->chrH->length>1) usesFilter=1;
|
|
if(srcFilter->lumV!=NULL && srcFilter->lumV->length>1) usesFilter=1;
|
|
if(srcFilter->lumH!=NULL && srcFilter->lumH->length>1) usesFilter=1;
|
|
if(srcFilter->chrV!=NULL && srcFilter->chrV->length>1) usesFilter=1;
|
|
if(srcFilter->chrH!=NULL && srcFilter->chrH->length>1) usesFilter=1;
|
|
|
|
/* unscaled special Cases */
|
|
if(srcW==dstW && srcH==dstH && !usesFilter)
|
|
{
|
|
/* yuv2bgr */
|
|
if(isPlanarYUV(srcFormat) && isBGR(dstFormat))
|
|
{
|
|
// FIXME multiple yuv2rgb converters wont work that way cuz that thing is full of globals&statics
|
|
yuv2rgb_init( dstFormat&0xFF /* =bpp */, MODE_RGB);
|
|
c->swScale= planarYuvToBgr;
|
|
|
|
if(flags&SWS_PRINT_INFO)
|
|
printf("SwScaler: using unscaled %s -> %s special converter\n",
|
|
vo_format_name(srcFormat), vo_format_name(dstFormat));
|
|
return c;
|
|
}
|
|
|
|
/* simple copy */
|
|
if(srcFormat == dstFormat || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)))
|
|
{
|
|
c->swScale= simpleCopy;
|
|
|
|
if(flags&SWS_PRINT_INFO)
|
|
printf("SwScaler: using unscaled %s -> %s special converter\n",
|
|
vo_format_name(srcFormat), vo_format_name(dstFormat));
|
|
return c;
|
|
}
|
|
|
|
/* bgr32to24 & rgb32to24*/
|
|
if((srcFormat==IMGFMT_BGR32 && dstFormat==IMGFMT_BGR24)
|
|
||(srcFormat==IMGFMT_RGB32 && dstFormat==IMGFMT_RGB24))
|
|
{
|
|
c->swScale= bgr32to24Wrapper;
|
|
|
|
if(flags&SWS_PRINT_INFO)
|
|
printf("SwScaler: using unscaled %s -> %s special converter\n",
|
|
vo_format_name(srcFormat), vo_format_name(dstFormat));
|
|
return c;
|
|
}
|
|
|
|
/* bgr24to32 & rgb24to32*/
|
|
if((srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_BGR32)
|
|
||(srcFormat==IMGFMT_RGB24 && dstFormat==IMGFMT_RGB32))
|
|
{
|
|
c->swScale= bgr24to32Wrapper;
|
|
|
|
if(flags&SWS_PRINT_INFO)
|
|
printf("SwScaler: using unscaled %s -> %s special converter\n",
|
|
vo_format_name(srcFormat), vo_format_name(dstFormat));
|
|
return c;
|
|
}
|
|
}
|
|
|
|
if(cpuCaps.hasMMX2)
|
|
{
|
|
c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
|
|
if(!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR))
|
|
{
|
|
if(flags&SWS_PRINT_INFO)
|
|
fprintf(stderr, "SwScaler: output Width is not a multiple of 32 -> no MMX2 scaler\n");
|
|
}
|
|
}
|
|
else
|
|
c->canMMX2BeUsed=0;
|
|
|
|
|
|
/* dont use full vertical UV input/internaly if the source doesnt even have it */
|
|
if(isHalfChrV(srcFormat)) c->flags= flags= flags&(~SWS_FULL_CHR_V);
|
|
/* dont use full horizontal UV input if the source doesnt even have it */
|
|
if(isHalfChrH(srcFormat)) c->flags= flags= flags&(~SWS_FULL_CHR_H_INP);
|
|
/* dont use full horizontal UV internally if the destination doesnt even have it */
|
|
if(isHalfChrH(dstFormat)) c->flags= flags= flags&(~SWS_FULL_CHR_H_INT);
|
|
|
|
if(flags&SWS_FULL_CHR_H_INP) c->chrSrcW= srcW;
|
|
else c->chrSrcW= (srcW+1)>>1;
|
|
|
|
if(flags&SWS_FULL_CHR_H_INT) c->chrDstW= dstW;
|
|
else c->chrDstW= (dstW+1)>>1;
|
|
|
|
if(flags&SWS_FULL_CHR_V) c->chrSrcH= srcH;
|
|
else c->chrSrcH= (srcH+1)>>1;
|
|
|
|
if(isHalfChrV(dstFormat)) c->chrDstH= (dstH+1)>>1;
|
|
else c->chrDstH= dstH;
|
|
|
|
c->chrXInc= ((c->chrSrcW<<16) + (c->chrDstW>>1))/c->chrDstW;
|
|
c->chrYInc= ((c->chrSrcH<<16) + (c->chrDstH>>1))/c->chrDstH;
|
|
|
|
|
|
// match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
|
|
// but only for the FAST_BILINEAR mode otherwise do correct scaling
|
|
// n-2 is the last chrominance sample available
|
|
// this is not perfect, but noone shuld notice the difference, the more correct variant
|
|
// would be like the vertical one, but that would require some special code for the
|
|
// first and last pixel
|
|
if(flags&SWS_FAST_BILINEAR)
|
|
{
|
|
if(c->canMMX2BeUsed)
|
|
{
|
|
c->lumXInc+= 20;
|
|
c->chrXInc+= 20;
|
|
}
|
|
//we dont use the x86asm scaler if mmx is available
|
|
else if(cpuCaps.hasMMX)
|
|
{
|
|
c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
|
|
c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
|
|
}
|
|
}
|
|
|
|
/* precalculate horizontal scaler filter coefficients */
|
|
{
|
|
const int filterAlign= cpuCaps.hasMMX ? 4 : 1;
|
|
|
|
initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
|
|
srcW , dstW, filterAlign, 1<<14, flags,
|
|
srcFilter->lumH, dstFilter->lumH);
|
|
initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
|
|
(srcW+1)>>1, c->chrDstW, filterAlign, 1<<14, flags,
|
|
srcFilter->chrH, dstFilter->chrH);
|
|
|
|
#ifdef ARCH_X86
|
|
// cant downscale !!!
|
|
if(c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
|
|
{
|
|
initMMX2HScaler( dstW, c->lumXInc, c->funnyYCode);
|
|
initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode);
|
|
}
|
|
#endif
|
|
} // Init Horizontal stuff
|
|
|
|
|
|
|
|
/* precalculate vertical scaler filter coefficients */
|
|
initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
|
|
srcH , dstH, 1, (1<<12)-4, flags,
|
|
srcFilter->lumV, dstFilter->lumV);
|
|
initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
|
|
(srcH+1)>>1, c->chrDstH, 1, (1<<12)-4, flags,
|
|
srcFilter->chrV, dstFilter->chrV);
|
|
|
|
// Calculate Buffer Sizes so that they wont run out while handling these damn slices
|
|
c->vLumBufSize= c->vLumFilterSize;
|
|
c->vChrBufSize= c->vChrFilterSize;
|
|
for(i=0; i<dstH; i++)
|
|
{
|
|
int chrI= i*c->chrDstH / dstH;
|
|
int nextSlice= MAX(c->vLumFilterPos[i ] + c->vLumFilterSize - 1,
|
|
((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<1));
|
|
nextSlice&= ~1; // Slices start at even boundaries
|
|
if(c->vLumFilterPos[i ] + c->vLumBufSize < nextSlice)
|
|
c->vLumBufSize= nextSlice - c->vLumFilterPos[i ];
|
|
if(c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>1))
|
|
c->vChrBufSize= (nextSlice>>1) - c->vChrFilterPos[chrI];
|
|
}
|
|
|
|
// allocate pixbufs (we use dynamic allocation because otherwise we would need to
|
|
c->lumPixBuf= (int16_t**)memalign(4, c->vLumBufSize*2*sizeof(int16_t*));
|
|
c->chrPixBuf= (int16_t**)memalign(4, c->vChrBufSize*2*sizeof(int16_t*));
|
|
//Note we need at least one pixel more at the end because of the mmx code (just in case someone wanna replace the 4000/8000)
|
|
for(i=0; i<c->vLumBufSize; i++)
|
|
c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= (uint16_t*)memalign(8, 4000);
|
|
for(i=0; i<c->vChrBufSize; i++)
|
|
c->chrPixBuf[i]= c->chrPixBuf[i+c->vChrBufSize]= (uint16_t*)memalign(8, 8000);
|
|
|
|
//try to avoid drawing green stuff between the right end and the stride end
|
|
for(i=0; i<c->vLumBufSize; i++) memset(c->lumPixBuf[i], 0, 4000);
|
|
for(i=0; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, 8000);
|
|
|
|
ASSERT(c->chrDstH <= dstH)
|
|
|
|
// pack filter data for mmx code
|
|
if(cpuCaps.hasMMX)
|
|
{
|
|
c->lumMmxFilter= (int16_t*)memalign(8, c->vLumFilterSize* dstH*4*sizeof(int16_t));
|
|
c->chrMmxFilter= (int16_t*)memalign(8, c->vChrFilterSize*c->chrDstH*4*sizeof(int16_t));
|
|
for(i=0; i<c->vLumFilterSize*dstH; i++)
|
|
c->lumMmxFilter[4*i]=c->lumMmxFilter[4*i+1]=c->lumMmxFilter[4*i+2]=c->lumMmxFilter[4*i+3]=
|
|
c->vLumFilter[i];
|
|
for(i=0; i<c->vChrFilterSize*c->chrDstH; i++)
|
|
c->chrMmxFilter[4*i]=c->chrMmxFilter[4*i+1]=c->chrMmxFilter[4*i+2]=c->chrMmxFilter[4*i+3]=
|
|
c->vChrFilter[i];
|
|
}
|
|
|
|
if(flags&SWS_PRINT_INFO)
|
|
{
|
|
#ifdef DITHER1XBPP
|
|
char *dither= " dithered";
|
|
#else
|
|
char *dither= "";
|
|
#endif
|
|
if(flags&SWS_FAST_BILINEAR)
|
|
fprintf(stderr, "\nSwScaler: FAST_BILINEAR scaler, ");
|
|
else if(flags&SWS_BILINEAR)
|
|
fprintf(stderr, "\nSwScaler: BILINEAR scaler, ");
|
|
else if(flags&SWS_BICUBIC)
|
|
fprintf(stderr, "\nSwScaler: BICUBIC scaler, ");
|
|
else if(flags&SWS_X)
|
|
fprintf(stderr, "\nSwScaler: Experimental scaler, ");
|
|
else if(flags&SWS_POINT)
|
|
fprintf(stderr, "\nSwScaler: Nearest Neighbor / POINT scaler, ");
|
|
else if(flags&SWS_AREA)
|
|
fprintf(stderr, "\nSwScaler: Area Averageing scaler, ");
|
|
else
|
|
fprintf(stderr, "\nSwScaler: ehh flags invalid?! ");
|
|
|
|
if(dstFormat==IMGFMT_BGR15 || dstFormat==IMGFMT_BGR16)
|
|
fprintf(stderr, "from %s to%s %s ",
|
|
vo_format_name(srcFormat), dither, vo_format_name(dstFormat));
|
|
else
|
|
fprintf(stderr, "from %s to %s ",
|
|
vo_format_name(srcFormat), vo_format_name(dstFormat));
|
|
|
|
if(cpuCaps.hasMMX2)
|
|
fprintf(stderr, "using MMX2\n");
|
|
else if(cpuCaps.has3DNow)
|
|
fprintf(stderr, "using 3DNOW\n");
|
|
else if(cpuCaps.hasMMX)
|
|
fprintf(stderr, "using MMX\n");
|
|
else
|
|
fprintf(stderr, "using C\n");
|
|
}
|
|
|
|
if((flags & SWS_PRINT_INFO) && verbose)
|
|
{
|
|
if(cpuCaps.hasMMX)
|
|
{
|
|
if(c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
|
|
printf("SwScaler: using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
|
|
else
|
|
{
|
|
if(c->hLumFilterSize==4)
|
|
printf("SwScaler: using 4-tap MMX scaler for horizontal luminance scaling\n");
|
|
else if(c->hLumFilterSize==8)
|
|
printf("SwScaler: using 8-tap MMX scaler for horizontal luminance scaling\n");
|
|
else
|
|
printf("SwScaler: using n-tap MMX scaler for horizontal luminance scaling\n");
|
|
|
|
if(c->hChrFilterSize==4)
|
|
printf("SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling\n");
|
|
else if(c->hChrFilterSize==8)
|
|
printf("SwScaler: using 8-tap MMX scaler for horizontal chrominance scaling\n");
|
|
else
|
|
printf("SwScaler: using n-tap MMX scaler for horizontal chrominance scaling\n");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#ifdef ARCH_X86
|
|
printf("SwScaler: using X86-Asm scaler for horizontal scaling\n");
|
|
#else
|
|
if(flags & SWS_FAST_BILINEAR)
|
|
printf("SwScaler: using FAST_BILINEAR C scaler for horizontal scaling\n");
|
|
else
|
|
printf("SwScaler: using C scaler for horizontal scaling\n");
|
|
#endif
|
|
}
|
|
if(isPlanarYUV(dstFormat))
|
|
{
|
|
if(c->vLumFilterSize==1)
|
|
printf("SwScaler: using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", cpuCaps.hasMMX ? "MMX" : "C");
|
|
else
|
|
printf("SwScaler: using n-tap %s scaler for vertical scaling (YV12 like)\n", cpuCaps.hasMMX ? "MMX" : "C");
|
|
}
|
|
else
|
|
{
|
|
if(c->vLumFilterSize==1 && c->vChrFilterSize==2)
|
|
printf("SwScaler: using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
|
|
"SwScaler: 2-tap scaler for vertical chrominance scaling (BGR)\n",cpuCaps.hasMMX ? "MMX" : "C");
|
|
else if(c->vLumFilterSize==2 && c->vChrFilterSize==2)
|
|
printf("SwScaler: using 2-tap linear %s scaler for vertical scaling (BGR)\n", cpuCaps.hasMMX ? "MMX" : "C");
|
|
else
|
|
printf("SwScaler: using n-tap %s scaler for vertical scaling (BGR)\n", cpuCaps.hasMMX ? "MMX" : "C");
|
|
}
|
|
|
|
if(dstFormat==IMGFMT_BGR24)
|
|
printf("SwScaler: using %s YV12->BGR24 Converter\n",
|
|
cpuCaps.hasMMX2 ? "MMX2" : (cpuCaps.hasMMX ? "MMX" : "C"));
|
|
else if(dstFormat==IMGFMT_BGR32)
|
|
printf("SwScaler: using %s YV12->BGR32 Converter\n", cpuCaps.hasMMX ? "MMX" : "C");
|
|
else if(dstFormat==IMGFMT_BGR16)
|
|
printf("SwScaler: using %s YV12->BGR16 Converter\n", cpuCaps.hasMMX ? "MMX" : "C");
|
|
else if(dstFormat==IMGFMT_BGR15)
|
|
printf("SwScaler: using %s YV12->BGR15 Converter\n", cpuCaps.hasMMX ? "MMX" : "C");
|
|
|
|
printf("SwScaler: %dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
|
|
}
|
|
if((flags & SWS_PRINT_INFO) && verbose>1)
|
|
{
|
|
printf("SwScaler:Lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
|
|
c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
|
|
printf("SwScaler:Chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
|
|
c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
|
|
}
|
|
|
|
c->swScale= swScale;
|
|
return c;
|
|
}
|
|
|
|
/**
|
|
* returns a normalized gaussian curve used to filter stuff
|
|
* quality=3 is high quality, lowwer is lowwer quality
|
|
*/
|
|
|
|
SwsVector *getGaussianVec(double variance, double quality){
|
|
const int length= (int)(variance*quality + 0.5) | 1;
|
|
int i;
|
|
double *coeff= memalign(sizeof(double), length*sizeof(double));
|
|
double middle= (length-1)*0.5;
|
|
SwsVector *vec= malloc(sizeof(SwsVector));
|
|
|
|
vec->coeff= coeff;
|
|
vec->length= length;
|
|
|
|
for(i=0; i<length; i++)
|
|
{
|
|
double dist= i-middle;
|
|
coeff[i]= exp( -dist*dist/(2*variance*variance) ) / sqrt(2*variance*PI);
|
|
}
|
|
|
|
normalizeVec(vec, 1.0);
|
|
|
|
return vec;
|
|
}
|
|
|
|
SwsVector *getConstVec(double c, int length){
|
|
int i;
|
|
double *coeff= memalign(sizeof(double), length*sizeof(double));
|
|
SwsVector *vec= malloc(sizeof(SwsVector));
|
|
|
|
vec->coeff= coeff;
|
|
vec->length= length;
|
|
|
|
for(i=0; i<length; i++)
|
|
coeff[i]= c;
|
|
|
|
return vec;
|
|
}
|
|
|
|
|
|
SwsVector *getIdentityVec(void){
|
|
double *coeff= memalign(sizeof(double), sizeof(double));
|
|
SwsVector *vec= malloc(sizeof(SwsVector));
|
|
coeff[0]= 1.0;
|
|
|
|
vec->coeff= coeff;
|
|
vec->length= 1;
|
|
|
|
return vec;
|
|
}
|
|
|
|
void normalizeVec(SwsVector *a, double height){
|
|
int i;
|
|
double sum=0;
|
|
double inv;
|
|
|
|
for(i=0; i<a->length; i++)
|
|
sum+= a->coeff[i];
|
|
|
|
inv= height/sum;
|
|
|
|
for(i=0; i<a->length; i++)
|
|
a->coeff[i]*= height;
|
|
}
|
|
|
|
void scaleVec(SwsVector *a, double scalar){
|
|
int i;
|
|
|
|
for(i=0; i<a->length; i++)
|
|
a->coeff[i]*= scalar;
|
|
}
|
|
|
|
static SwsVector *getConvVec(SwsVector *a, SwsVector *b){
|
|
int length= a->length + b->length - 1;
|
|
double *coeff= memalign(sizeof(double), length*sizeof(double));
|
|
int i, j;
|
|
SwsVector *vec= malloc(sizeof(SwsVector));
|
|
|
|
vec->coeff= coeff;
|
|
vec->length= length;
|
|
|
|
for(i=0; i<length; i++) coeff[i]= 0.0;
|
|
|
|
for(i=0; i<a->length; i++)
|
|
{
|
|
for(j=0; j<b->length; j++)
|
|
{
|
|
coeff[i+j]+= a->coeff[i]*b->coeff[j];
|
|
}
|
|
}
|
|
|
|
return vec;
|
|
}
|
|
|
|
static SwsVector *sumVec(SwsVector *a, SwsVector *b){
|
|
int length= MAX(a->length, b->length);
|
|
double *coeff= memalign(sizeof(double), length*sizeof(double));
|
|
int i;
|
|
SwsVector *vec= malloc(sizeof(SwsVector));
|
|
|
|
vec->coeff= coeff;
|
|
vec->length= length;
|
|
|
|
for(i=0; i<length; i++) coeff[i]= 0.0;
|
|
|
|
for(i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
|
|
for(i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
|
|
|
|
return vec;
|
|
}
|
|
|
|
static SwsVector *diffVec(SwsVector *a, SwsVector *b){
|
|
int length= MAX(a->length, b->length);
|
|
double *coeff= memalign(sizeof(double), length*sizeof(double));
|
|
int i;
|
|
SwsVector *vec= malloc(sizeof(SwsVector));
|
|
|
|
vec->coeff= coeff;
|
|
vec->length= length;
|
|
|
|
for(i=0; i<length; i++) coeff[i]= 0.0;
|
|
|
|
for(i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
|
|
for(i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]-= b->coeff[i];
|
|
|
|
return vec;
|
|
}
|
|
|
|
/* shift left / or right if "shift" is negative */
|
|
static SwsVector *getShiftedVec(SwsVector *a, int shift){
|
|
int length= a->length + ABS(shift)*2;
|
|
double *coeff= memalign(sizeof(double), length*sizeof(double));
|
|
int i;
|
|
SwsVector *vec= malloc(sizeof(SwsVector));
|
|
|
|
vec->coeff= coeff;
|
|
vec->length= length;
|
|
|
|
for(i=0; i<length; i++) coeff[i]= 0.0;
|
|
|
|
for(i=0; i<a->length; i++)
|
|
{
|
|
coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
|
|
}
|
|
|
|
return vec;
|
|
}
|
|
|
|
void shiftVec(SwsVector *a, int shift){
|
|
SwsVector *shifted= getShiftedVec(a, shift);
|
|
free(a->coeff);
|
|
a->coeff= shifted->coeff;
|
|
a->length= shifted->length;
|
|
free(shifted);
|
|
}
|
|
|
|
void addVec(SwsVector *a, SwsVector *b){
|
|
SwsVector *sum= sumVec(a, b);
|
|
free(a->coeff);
|
|
a->coeff= sum->coeff;
|
|
a->length= sum->length;
|
|
free(sum);
|
|
}
|
|
|
|
void subVec(SwsVector *a, SwsVector *b){
|
|
SwsVector *diff= diffVec(a, b);
|
|
free(a->coeff);
|
|
a->coeff= diff->coeff;
|
|
a->length= diff->length;
|
|
free(diff);
|
|
}
|
|
|
|
void convVec(SwsVector *a, SwsVector *b){
|
|
SwsVector *conv= getConvVec(a, b);
|
|
free(a->coeff);
|
|
a->coeff= conv->coeff;
|
|
a->length= conv->length;
|
|
free(conv);
|
|
}
|
|
|
|
SwsVector *cloneVec(SwsVector *a){
|
|
double *coeff= memalign(sizeof(double), a->length*sizeof(double));
|
|
int i;
|
|
SwsVector *vec= malloc(sizeof(SwsVector));
|
|
|
|
vec->coeff= coeff;
|
|
vec->length= a->length;
|
|
|
|
for(i=0; i<a->length; i++) coeff[i]= a->coeff[i];
|
|
|
|
return vec;
|
|
}
|
|
|
|
void printVec(SwsVector *a){
|
|
int i;
|
|
double max=0;
|
|
double min=0;
|
|
double range;
|
|
|
|
for(i=0; i<a->length; i++)
|
|
if(a->coeff[i]>max) max= a->coeff[i];
|
|
|
|
for(i=0; i<a->length; i++)
|
|
if(a->coeff[i]<min) min= a->coeff[i];
|
|
|
|
range= max - min;
|
|
|
|
for(i=0; i<a->length; i++)
|
|
{
|
|
int x= (int)((a->coeff[i]-min)*60.0/range +0.5);
|
|
printf("%1.3f ", a->coeff[i]);
|
|
for(;x>0; x--) printf(" ");
|
|
printf("|\n");
|
|
}
|
|
}
|
|
|
|
void freeVec(SwsVector *a){
|
|
if(!a) return;
|
|
if(a->coeff) free(a->coeff);
|
|
a->coeff=NULL;
|
|
a->length=0;
|
|
free(a);
|
|
}
|
|
|
|
void freeSwsContext(SwsContext *c){
|
|
int i;
|
|
|
|
if(!c) return;
|
|
|
|
if(c->lumPixBuf)
|
|
{
|
|
for(i=0; i<c->vLumBufSize; i++)
|
|
{
|
|
if(c->lumPixBuf[i]) free(c->lumPixBuf[i]);
|
|
c->lumPixBuf[i]=NULL;
|
|
}
|
|
free(c->lumPixBuf);
|
|
c->lumPixBuf=NULL;
|
|
}
|
|
|
|
if(c->chrPixBuf)
|
|
{
|
|
for(i=0; i<c->vChrBufSize; i++)
|
|
{
|
|
if(c->chrPixBuf[i]) free(c->chrPixBuf[i]);
|
|
c->chrPixBuf[i]=NULL;
|
|
}
|
|
free(c->chrPixBuf);
|
|
c->chrPixBuf=NULL;
|
|
}
|
|
|
|
if(c->vLumFilter) free(c->vLumFilter);
|
|
c->vLumFilter = NULL;
|
|
if(c->vChrFilter) free(c->vChrFilter);
|
|
c->vChrFilter = NULL;
|
|
if(c->hLumFilter) free(c->hLumFilter);
|
|
c->hLumFilter = NULL;
|
|
if(c->hChrFilter) free(c->hChrFilter);
|
|
c->hChrFilter = NULL;
|
|
|
|
if(c->vLumFilterPos) free(c->vLumFilterPos);
|
|
c->vLumFilterPos = NULL;
|
|
if(c->vChrFilterPos) free(c->vChrFilterPos);
|
|
c->vChrFilterPos = NULL;
|
|
if(c->hLumFilterPos) free(c->hLumFilterPos);
|
|
c->hLumFilterPos = NULL;
|
|
if(c->hChrFilterPos) free(c->hChrFilterPos);
|
|
c->hChrFilterPos = NULL;
|
|
|
|
if(c->lumMmxFilter) free(c->lumMmxFilter);
|
|
c->lumMmxFilter = NULL;
|
|
if(c->chrMmxFilter) free(c->chrMmxFilter);
|
|
c->chrMmxFilter = NULL;
|
|
|
|
free(c);
|
|
}
|
|
|
|
|