mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
2f60f6297c
Originally committed as revision 27564 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
3090 lines
104 KiB
C
3090 lines
104 KiB
C
/*
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* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
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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 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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*
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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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* 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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* the C code (not assembly, mmx, ...) of this file can be used
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* under the LGPL license too
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*/
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/*
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supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR32_1, BGR24, BGR16, BGR15, RGB32, RGB32_1, RGB24, Y8/Y800, YVU9/IF09, PAL8
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supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
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{BGR,RGB}{1,4,8,15,16} support dithering
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unscaled special converters (YV12=I420=IYUV, Y800=Y8)
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YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
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x -> x
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YUV9 -> YV12
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YUV9/YV12 -> Y800
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Y800 -> YUV9/YV12
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BGR24 -> BGR32 & RGB24 -> RGB32
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BGR32 -> BGR24 & RGB32 -> RGB24
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BGR15 -> BGR16
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*/
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/*
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tested special converters (most are tested actually, but I did not write it down ...)
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YV12 -> BGR16
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YV12 -> YV12
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BGR15 -> BGR16
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BGR16 -> BGR16
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YVU9 -> YV12
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untested special converters
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YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be ok)
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YV12/I420 -> YV12/I420
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YUY2/BGR15/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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BGR24 -> YV12
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*/
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#define _SVID_SOURCE //needed for MAP_ANONYMOUS
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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 <unistd.h>
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#include "config.h"
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#include <assert.h>
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
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#define MAP_ANONYMOUS MAP_ANON
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#endif
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#endif
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#include "swscale.h"
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#include "swscale_internal.h"
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#include "rgb2rgb.h"
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#include "libavutil/x86_cpu.h"
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#include "libavutil/bswap.h"
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unsigned swscale_version(void)
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{
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return LIBSWSCALE_VERSION_INT;
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}
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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 WORDS_BIGENDIAN
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#define DITHER1XBPP
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#define FAST_BGR2YV12 // use 7 bit coeffs instead of 15bit
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#define RET 0xC3 //near return opcode for X86
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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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#define isSupportedIn(x) ( \
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(x)==PIX_FMT_YUV420P \
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|| (x)==PIX_FMT_YUVA420P \
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|| (x)==PIX_FMT_YUYV422 \
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|| (x)==PIX_FMT_UYVY422 \
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|| (x)==PIX_FMT_RGB32 \
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|| (x)==PIX_FMT_RGB32_1 \
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|| (x)==PIX_FMT_BGR24 \
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|| (x)==PIX_FMT_BGR565 \
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|| (x)==PIX_FMT_BGR555 \
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|| (x)==PIX_FMT_BGR32 \
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|| (x)==PIX_FMT_BGR32_1 \
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|| (x)==PIX_FMT_RGB24 \
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|| (x)==PIX_FMT_RGB565 \
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|| (x)==PIX_FMT_RGB555 \
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|| (x)==PIX_FMT_GRAY8 \
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|| (x)==PIX_FMT_YUV410P \
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|| (x)==PIX_FMT_GRAY16BE \
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|| (x)==PIX_FMT_GRAY16LE \
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|| (x)==PIX_FMT_YUV444P \
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|| (x)==PIX_FMT_YUV422P \
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|| (x)==PIX_FMT_YUV411P \
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|| (x)==PIX_FMT_PAL8 \
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|| (x)==PIX_FMT_BGR8 \
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|| (x)==PIX_FMT_RGB8 \
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|| (x)==PIX_FMT_BGR4_BYTE \
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|| (x)==PIX_FMT_RGB4_BYTE \
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|| (x)==PIX_FMT_YUV440P \
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)
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#define isSupportedOut(x) ( \
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(x)==PIX_FMT_YUV420P \
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|| (x)==PIX_FMT_YUYV422 \
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|| (x)==PIX_FMT_UYVY422 \
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|| (x)==PIX_FMT_YUV444P \
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|| (x)==PIX_FMT_YUV422P \
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|| (x)==PIX_FMT_YUV411P \
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|| isRGB(x) \
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|| isBGR(x) \
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|| (x)==PIX_FMT_NV12 \
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|| (x)==PIX_FMT_NV21 \
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|| (x)==PIX_FMT_GRAY16BE \
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|| (x)==PIX_FMT_GRAY16LE \
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|| (x)==PIX_FMT_GRAY8 \
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|| (x)==PIX_FMT_YUV410P \
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)
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#define isPacked(x) ( \
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(x)==PIX_FMT_PAL8 \
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|| (x)==PIX_FMT_YUYV422 \
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|| (x)==PIX_FMT_UYVY422 \
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|| isRGB(x) \
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|| isBGR(x) \
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)
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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 const int32_t Inverse_Table_6_9[8][4];
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static const double rgb2yuv_table[8][9]={
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{0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
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{0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
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{0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
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{0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
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{0.59 , 0.11 , 0.30 , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC
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{0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
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{0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //SMPTE 170M
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{0.701 , 0.087 , 0.212 , -0.384, 0.5 -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M
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};
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/*
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NOTES
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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 misalignment 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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*/
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#if defined(ARCH_X86) && defined (CONFIG_GPL)
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DECLARE_ASM_CONST(8, uint64_t, bF8)= 0xF8F8F8F8F8F8F8F8LL;
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DECLARE_ASM_CONST(8, uint64_t, bFC)= 0xFCFCFCFCFCFCFCFCLL;
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DECLARE_ASM_CONST(8, uint64_t, w10)= 0x0010001000100010LL;
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DECLARE_ASM_CONST(8, uint64_t, w02)= 0x0002000200020002LL;
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DECLARE_ASM_CONST(8, uint64_t, bm00001111)=0x00000000FFFFFFFFLL;
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DECLARE_ASM_CONST(8, uint64_t, bm00000111)=0x0000000000FFFFFFLL;
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DECLARE_ASM_CONST(8, uint64_t, bm11111000)=0xFFFFFFFFFF000000LL;
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DECLARE_ASM_CONST(8, uint64_t, bm01010101)=0x00FF00FF00FF00FFLL;
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static volatile uint64_t attribute_used __attribute__((aligned(8))) b5Dither;
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static volatile uint64_t attribute_used __attribute__((aligned(8))) g5Dither;
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static volatile uint64_t attribute_used __attribute__((aligned(8))) g6Dither;
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static volatile uint64_t attribute_used __attribute__((aligned(8))) r5Dither;
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const DECLARE_ALIGNED(8, uint64_t, ff_dither4[2]) = {
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0x0103010301030103LL,
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0x0200020002000200LL,};
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const DECLARE_ALIGNED(8, uint64_t, ff_dither8[2]) = {
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0x0602060206020602LL,
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0x0004000400040004LL,};
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DECLARE_ASM_CONST(8, uint64_t, b16Mask)= 0x001F001F001F001FLL;
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DECLARE_ASM_CONST(8, uint64_t, g16Mask)= 0x07E007E007E007E0LL;
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DECLARE_ASM_CONST(8, uint64_t, r16Mask)= 0xF800F800F800F800LL;
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DECLARE_ASM_CONST(8, uint64_t, b15Mask)= 0x001F001F001F001FLL;
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DECLARE_ASM_CONST(8, uint64_t, g15Mask)= 0x03E003E003E003E0LL;
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DECLARE_ASM_CONST(8, uint64_t, r15Mask)= 0x7C007C007C007C00LL;
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DECLARE_ALIGNED(8, const uint64_t, ff_M24A) = 0x00FF0000FF0000FFLL;
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DECLARE_ALIGNED(8, const uint64_t, ff_M24B) = 0xFF0000FF0000FF00LL;
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DECLARE_ALIGNED(8, const uint64_t, ff_M24C) = 0x0000FF0000FF0000LL;
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#ifdef FAST_BGR2YV12
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000000210041000DULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000FFEEFFDC0038ULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00000038FFD2FFF8ULL;
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#else
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000020E540830C8BULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000ED0FDAC23831ULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00003831D0E6F6EAULL;
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#endif /* FAST_BGR2YV12 */
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YOffset) = 0x1010101010101010ULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UVOffset) = 0x8080808080808080ULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_w1111) = 0x0001000100010001ULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toY1Coeff) = 0x0C88000040870C88ULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toY2Coeff) = 0x20DE4087000020DEULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_rgb24toY1Coeff) = 0x20DE0000408720DEULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_rgb24toY2Coeff) = 0x0C88408700000C88ULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toYOffset) = 0x0008400000084000ULL;
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toUV[2][4]) = {
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{0x38380000DAC83838ULL, 0xECFFDAC80000ECFFULL, 0xF6E40000D0E3F6E4ULL, 0x3838D0E300003838ULL},
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{0xECFF0000DAC8ECFFULL, 0x3838DAC800003838ULL, 0x38380000D0E33838ULL, 0xF6E4D0E30000F6E4ULL},
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};
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DECLARE_ALIGNED(8, const uint64_t, ff_bgr24toUVOffset)= 0x0040400000404000ULL;
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#endif /* defined(ARCH_X86) */
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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 SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
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extern const uint8_t dither_2x2_4[2][8];
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extern const uint8_t dither_2x2_8[2][8];
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extern const uint8_t dither_8x8_32[8][8];
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extern const uint8_t dither_8x8_73[8][8];
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extern const uint8_t dither_8x8_220[8][8];
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const char *sws_format_name(enum PixelFormat format)
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{
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switch (format) {
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case PIX_FMT_YUV420P:
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return "yuv420p";
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case PIX_FMT_YUVA420P:
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return "yuva420p";
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case PIX_FMT_YUYV422:
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return "yuyv422";
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case PIX_FMT_RGB24:
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return "rgb24";
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case PIX_FMT_BGR24:
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return "bgr24";
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case PIX_FMT_YUV422P:
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return "yuv422p";
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case PIX_FMT_YUV444P:
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return "yuv444p";
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case PIX_FMT_RGB32:
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return "rgb32";
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case PIX_FMT_YUV410P:
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return "yuv410p";
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case PIX_FMT_YUV411P:
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return "yuv411p";
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case PIX_FMT_RGB565:
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return "rgb565";
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case PIX_FMT_RGB555:
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return "rgb555";
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case PIX_FMT_GRAY16BE:
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return "gray16be";
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case PIX_FMT_GRAY16LE:
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return "gray16le";
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case PIX_FMT_GRAY8:
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return "gray8";
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case PIX_FMT_MONOWHITE:
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return "mono white";
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case PIX_FMT_MONOBLACK:
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return "mono black";
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case PIX_FMT_PAL8:
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return "Palette";
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case PIX_FMT_YUVJ420P:
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return "yuvj420p";
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case PIX_FMT_YUVJ422P:
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return "yuvj422p";
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case PIX_FMT_YUVJ444P:
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return "yuvj444p";
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case PIX_FMT_XVMC_MPEG2_MC:
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return "xvmc_mpeg2_mc";
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case PIX_FMT_XVMC_MPEG2_IDCT:
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return "xvmc_mpeg2_idct";
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case PIX_FMT_UYVY422:
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return "uyvy422";
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case PIX_FMT_UYYVYY411:
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return "uyyvyy411";
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case PIX_FMT_RGB32_1:
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return "rgb32x";
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case PIX_FMT_BGR32_1:
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return "bgr32x";
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case PIX_FMT_BGR32:
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return "bgr32";
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case PIX_FMT_BGR565:
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return "bgr565";
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case PIX_FMT_BGR555:
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return "bgr555";
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case PIX_FMT_BGR8:
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return "bgr8";
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case PIX_FMT_BGR4:
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return "bgr4";
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case PIX_FMT_BGR4_BYTE:
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return "bgr4 byte";
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case PIX_FMT_RGB8:
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return "rgb8";
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case PIX_FMT_RGB4:
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return "rgb4";
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case PIX_FMT_RGB4_BYTE:
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return "rgb4 byte";
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case PIX_FMT_NV12:
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return "nv12";
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case PIX_FMT_NV21:
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return "nv21";
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case PIX_FMT_YUV440P:
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return "yuv440p";
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default:
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return "Unknown format";
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}
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}
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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, int chrDstW)
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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=1<<18;
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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]= av_clip_uint8(val>>19);
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}
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if (uDest)
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for (i=0; i<chrDstW; i++)
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{
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int u=1<<18;
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int v=1<<18;
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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 + VOFW] * chrFilter[j];
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}
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uDest[i]= av_clip_uint8(u>>19);
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vDest[i]= av_clip_uint8(v>>19);
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}
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}
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static inline void yuv2nv12XinC(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, int dstW, int chrDstW, int dstFormat)
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{
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//FIXME Optimize (just quickly writen not opti..)
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int i;
|
|
for (i=0; i<dstW; i++)
|
|
{
|
|
int val=1<<18;
|
|
int j;
|
|
for (j=0; j<lumFilterSize; j++)
|
|
val += lumSrc[j][i] * lumFilter[j];
|
|
|
|
dest[i]= av_clip_uint8(val>>19);
|
|
}
|
|
|
|
if (!uDest)
|
|
return;
|
|
|
|
if (dstFormat == PIX_FMT_NV12)
|
|
for (i=0; i<chrDstW; i++)
|
|
{
|
|
int u=1<<18;
|
|
int v=1<<18;
|
|
int j;
|
|
for (j=0; j<chrFilterSize; j++)
|
|
{
|
|
u += chrSrc[j][i] * chrFilter[j];
|
|
v += chrSrc[j][i + VOFW] * chrFilter[j];
|
|
}
|
|
|
|
uDest[2*i]= av_clip_uint8(u>>19);
|
|
uDest[2*i+1]= av_clip_uint8(v>>19);
|
|
}
|
|
else
|
|
for (i=0; i<chrDstW; i++)
|
|
{
|
|
int u=1<<18;
|
|
int v=1<<18;
|
|
int j;
|
|
for (j=0; j<chrFilterSize; j++)
|
|
{
|
|
u += chrSrc[j][i] * chrFilter[j];
|
|
v += chrSrc[j][i + VOFW] * chrFilter[j];
|
|
}
|
|
|
|
uDest[2*i]= av_clip_uint8(v>>19);
|
|
uDest[2*i+1]= av_clip_uint8(u>>19);
|
|
}
|
|
}
|
|
|
|
#define YSCALE_YUV_2_PACKEDX_C(type) \
|
|
for (i=0; i<(dstW>>1); i++){\
|
|
int j;\
|
|
int Y1 = 1<<18;\
|
|
int Y2 = 1<<18;\
|
|
int U = 1<<18;\
|
|
int V = 1<<18;\
|
|
type av_unused *r, *b, *g;\
|
|
const int i2= 2*i;\
|
|
\
|
|
for (j=0; j<lumFilterSize; j++)\
|
|
{\
|
|
Y1 += lumSrc[j][i2] * lumFilter[j];\
|
|
Y2 += lumSrc[j][i2+1] * lumFilter[j];\
|
|
}\
|
|
for (j=0; j<chrFilterSize; j++)\
|
|
{\
|
|
U += chrSrc[j][i] * chrFilter[j];\
|
|
V += chrSrc[j][i+VOFW] * chrFilter[j];\
|
|
}\
|
|
Y1>>=19;\
|
|
Y2>>=19;\
|
|
U >>=19;\
|
|
V >>=19;\
|
|
if ((Y1|Y2|U|V)&256)\
|
|
{\
|
|
if (Y1>255) Y1=255; \
|
|
else if (Y1<0)Y1=0; \
|
|
if (Y2>255) Y2=255; \
|
|
else if (Y2<0)Y2=0; \
|
|
if (U>255) U=255; \
|
|
else if (U<0) U=0; \
|
|
if (V>255) V=255; \
|
|
else if (V<0) V=0; \
|
|
}
|
|
|
|
#define YSCALE_YUV_2_GRAY16_C(type) \
|
|
for (i=0; i<(dstW>>1); i++){\
|
|
int j;\
|
|
int Y1 = 1<<18;\
|
|
int Y2 = 1<<18;\
|
|
int U = 1<<18;\
|
|
int V = 1<<18;\
|
|
type av_unused *r, *b, *g;\
|
|
const int i2= 2*i;\
|
|
\
|
|
for (j=0; j<lumFilterSize; j++)\
|
|
{\
|
|
Y1 += lumSrc[j][i2] * lumFilter[j];\
|
|
Y2 += lumSrc[j][i2+1] * lumFilter[j];\
|
|
}\
|
|
Y1>>=11;\
|
|
Y2>>=11;\
|
|
if ((Y1|Y2|U|V)&65536)\
|
|
{\
|
|
if (Y1>65535) Y1=65535; \
|
|
else if (Y1<0)Y1=0; \
|
|
if (Y2>65535) Y2=65535; \
|
|
else if (Y2<0)Y2=0; \
|
|
}
|
|
|
|
#define YSCALE_YUV_2_RGBX_C(type) \
|
|
YSCALE_YUV_2_PACKEDX_C(type) \
|
|
r = (type *)c->table_rV[V]; \
|
|
g = (type *)(c->table_gU[U] + c->table_gV[V]); \
|
|
b = (type *)c->table_bU[U]; \
|
|
|
|
#define YSCALE_YUV_2_PACKED2_C \
|
|
for (i=0; i<(dstW>>1); i++){ \
|
|
const int i2= 2*i; \
|
|
int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19; \
|
|
int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19; \
|
|
int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19; \
|
|
int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19; \
|
|
|
|
#define YSCALE_YUV_2_GRAY16_2_C \
|
|
for (i=0; i<(dstW>>1); i++){ \
|
|
const int i2= 2*i; \
|
|
int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>11; \
|
|
int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11; \
|
|
|
|
#define YSCALE_YUV_2_RGB2_C(type) \
|
|
YSCALE_YUV_2_PACKED2_C\
|
|
type *r, *b, *g;\
|
|
r = (type *)c->table_rV[V];\
|
|
g = (type *)(c->table_gU[U] + c->table_gV[V]);\
|
|
b = (type *)c->table_bU[U];\
|
|
|
|
#define YSCALE_YUV_2_PACKED1_C \
|
|
for (i=0; i<(dstW>>1); i++){\
|
|
const int i2= 2*i;\
|
|
int Y1= buf0[i2 ]>>7;\
|
|
int Y2= buf0[i2+1]>>7;\
|
|
int U= (uvbuf1[i ])>>7;\
|
|
int V= (uvbuf1[i+VOFW])>>7;\
|
|
|
|
#define YSCALE_YUV_2_GRAY16_1_C \
|
|
for (i=0; i<(dstW>>1); i++){\
|
|
const int i2= 2*i;\
|
|
int Y1= buf0[i2 ]<<1;\
|
|
int Y2= buf0[i2+1]<<1;\
|
|
|
|
#define YSCALE_YUV_2_RGB1_C(type) \
|
|
YSCALE_YUV_2_PACKED1_C\
|
|
type *r, *b, *g;\
|
|
r = (type *)c->table_rV[V];\
|
|
g = (type *)(c->table_gU[U] + c->table_gV[V]);\
|
|
b = (type *)c->table_bU[U];\
|
|
|
|
#define YSCALE_YUV_2_PACKED1B_C \
|
|
for (i=0; i<(dstW>>1); i++){\
|
|
const int i2= 2*i;\
|
|
int Y1= buf0[i2 ]>>7;\
|
|
int Y2= buf0[i2+1]>>7;\
|
|
int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
|
|
int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\
|
|
|
|
#define YSCALE_YUV_2_RGB1B_C(type) \
|
|
YSCALE_YUV_2_PACKED1B_C\
|
|
type *r, *b, *g;\
|
|
r = (type *)c->table_rV[V];\
|
|
g = (type *)(c->table_gU[U] + c->table_gV[V]);\
|
|
b = (type *)c->table_bU[U];\
|
|
|
|
#define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16)\
|
|
switch(c->dstFormat)\
|
|
{\
|
|
case PIX_FMT_RGB32:\
|
|
case PIX_FMT_BGR32:\
|
|
case PIX_FMT_RGB32_1:\
|
|
case PIX_FMT_BGR32_1:\
|
|
func(uint32_t)\
|
|
((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
|
|
((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
|
|
} \
|
|
break;\
|
|
case PIX_FMT_RGB24:\
|
|
func(uint8_t)\
|
|
((uint8_t*)dest)[0]= r[Y1];\
|
|
((uint8_t*)dest)[1]= g[Y1];\
|
|
((uint8_t*)dest)[2]= b[Y1];\
|
|
((uint8_t*)dest)[3]= r[Y2];\
|
|
((uint8_t*)dest)[4]= g[Y2];\
|
|
((uint8_t*)dest)[5]= b[Y2];\
|
|
dest+=6;\
|
|
}\
|
|
break;\
|
|
case PIX_FMT_BGR24:\
|
|
func(uint8_t)\
|
|
((uint8_t*)dest)[0]= b[Y1];\
|
|
((uint8_t*)dest)[1]= g[Y1];\
|
|
((uint8_t*)dest)[2]= r[Y1];\
|
|
((uint8_t*)dest)[3]= b[Y2];\
|
|
((uint8_t*)dest)[4]= g[Y2];\
|
|
((uint8_t*)dest)[5]= r[Y2];\
|
|
dest+=6;\
|
|
}\
|
|
break;\
|
|
case PIX_FMT_RGB565:\
|
|
case PIX_FMT_BGR565:\
|
|
{\
|
|
const int dr1= dither_2x2_8[y&1 ][0];\
|
|
const int dg1= dither_2x2_4[y&1 ][0];\
|
|
const int db1= dither_2x2_8[(y&1)^1][0];\
|
|
const int dr2= dither_2x2_8[y&1 ][1];\
|
|
const int dg2= dither_2x2_4[y&1 ][1];\
|
|
const int db2= dither_2x2_8[(y&1)^1][1];\
|
|
func(uint16_t)\
|
|
((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
|
|
((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
|
|
}\
|
|
}\
|
|
break;\
|
|
case PIX_FMT_RGB555:\
|
|
case PIX_FMT_BGR555:\
|
|
{\
|
|
const int dr1= dither_2x2_8[y&1 ][0];\
|
|
const int dg1= dither_2x2_8[y&1 ][1];\
|
|
const int db1= dither_2x2_8[(y&1)^1][0];\
|
|
const int dr2= dither_2x2_8[y&1 ][1];\
|
|
const int dg2= dither_2x2_8[y&1 ][0];\
|
|
const int db2= dither_2x2_8[(y&1)^1][1];\
|
|
func(uint16_t)\
|
|
((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
|
|
((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
|
|
}\
|
|
}\
|
|
break;\
|
|
case PIX_FMT_RGB8:\
|
|
case PIX_FMT_BGR8:\
|
|
{\
|
|
const uint8_t * const d64= dither_8x8_73[y&7];\
|
|
const uint8_t * const d32= dither_8x8_32[y&7];\
|
|
func(uint8_t)\
|
|
((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
|
|
((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
|
|
}\
|
|
}\
|
|
break;\
|
|
case PIX_FMT_RGB4:\
|
|
case PIX_FMT_BGR4:\
|
|
{\
|
|
const uint8_t * const d64= dither_8x8_73 [y&7];\
|
|
const uint8_t * const d128=dither_8x8_220[y&7];\
|
|
func(uint8_t)\
|
|
((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
|
|
+ ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
|
|
}\
|
|
}\
|
|
break;\
|
|
case PIX_FMT_RGB4_BYTE:\
|
|
case PIX_FMT_BGR4_BYTE:\
|
|
{\
|
|
const uint8_t * const d64= dither_8x8_73 [y&7];\
|
|
const uint8_t * const d128=dither_8x8_220[y&7];\
|
|
func(uint8_t)\
|
|
((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
|
|
((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
|
|
}\
|
|
}\
|
|
break;\
|
|
case PIX_FMT_MONOBLACK:\
|
|
{\
|
|
const uint8_t * const d128=dither_8x8_220[y&7];\
|
|
uint8_t *g= c->table_gU[128] + c->table_gV[128];\
|
|
for (i=0; i<dstW-7; i+=8){\
|
|
int acc;\
|
|
acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
|
|
acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
|
|
acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
|
|
acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
|
|
acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
|
|
acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
|
|
acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
|
|
acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
|
|
((uint8_t*)dest)[0]= acc;\
|
|
dest++;\
|
|
}\
|
|
\
|
|
/*\
|
|
((uint8_t*)dest)-= dstW>>4;\
|
|
{\
|
|
int acc=0;\
|
|
int left=0;\
|
|
static int top[1024];\
|
|
static int last_new[1024][1024];\
|
|
static int last_in3[1024][1024];\
|
|
static int drift[1024][1024];\
|
|
int topLeft=0;\
|
|
int shift=0;\
|
|
int count=0;\
|
|
const uint8_t * const d128=dither_8x8_220[y&7];\
|
|
int error_new=0;\
|
|
int error_in3=0;\
|
|
int f=0;\
|
|
\
|
|
for (i=dstW>>1; i<dstW; i++){\
|
|
int in= ((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19);\
|
|
int in2 = (76309 * (in - 16) + 32768) >> 16;\
|
|
int in3 = (in2 < 0) ? 0 : ((in2 > 255) ? 255 : in2);\
|
|
int old= (left*7 + topLeft + top[i]*5 + top[i+1]*3)/20 + in3\
|
|
+ (last_new[y][i] - in3)*f/256;\
|
|
int new= old> 128 ? 255 : 0;\
|
|
\
|
|
error_new+= FFABS(last_new[y][i] - new);\
|
|
error_in3+= FFABS(last_in3[y][i] - in3);\
|
|
f= error_new - error_in3*4;\
|
|
if (f<0) f=0;\
|
|
if (f>256) f=256;\
|
|
\
|
|
topLeft= top[i];\
|
|
left= top[i]= old - new;\
|
|
last_new[y][i]= new;\
|
|
last_in3[y][i]= in3;\
|
|
\
|
|
acc+= acc + (new&1);\
|
|
if ((i&7)==6){\
|
|
((uint8_t*)dest)[0]= acc;\
|
|
((uint8_t*)dest)++;\
|
|
}\
|
|
}\
|
|
}\
|
|
*/\
|
|
}\
|
|
break;\
|
|
case PIX_FMT_YUYV422:\
|
|
func2\
|
|
((uint8_t*)dest)[2*i2+0]= Y1;\
|
|
((uint8_t*)dest)[2*i2+1]= U;\
|
|
((uint8_t*)dest)[2*i2+2]= Y2;\
|
|
((uint8_t*)dest)[2*i2+3]= V;\
|
|
} \
|
|
break;\
|
|
case PIX_FMT_UYVY422:\
|
|
func2\
|
|
((uint8_t*)dest)[2*i2+0]= U;\
|
|
((uint8_t*)dest)[2*i2+1]= Y1;\
|
|
((uint8_t*)dest)[2*i2+2]= V;\
|
|
((uint8_t*)dest)[2*i2+3]= Y2;\
|
|
} \
|
|
break;\
|
|
case PIX_FMT_GRAY16BE:\
|
|
func_g16\
|
|
((uint8_t*)dest)[2*i2+0]= Y1>>8;\
|
|
((uint8_t*)dest)[2*i2+1]= Y1;\
|
|
((uint8_t*)dest)[2*i2+2]= Y2>>8;\
|
|
((uint8_t*)dest)[2*i2+3]= Y2;\
|
|
} \
|
|
break;\
|
|
case PIX_FMT_GRAY16LE:\
|
|
func_g16\
|
|
((uint8_t*)dest)[2*i2+0]= Y1;\
|
|
((uint8_t*)dest)[2*i2+1]= Y1>>8;\
|
|
((uint8_t*)dest)[2*i2+2]= Y2;\
|
|
((uint8_t*)dest)[2*i2+3]= Y2>>8;\
|
|
} \
|
|
break;\
|
|
}\
|
|
|
|
|
|
static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
|
|
int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
|
|
uint8_t *dest, int dstW, int y)
|
|
{
|
|
int i;
|
|
switch(c->dstFormat)
|
|
{
|
|
case PIX_FMT_BGR32:
|
|
case PIX_FMT_RGB32:
|
|
case PIX_FMT_BGR32_1:
|
|
case PIX_FMT_RGB32_1:
|
|
YSCALE_YUV_2_RGBX_C(uint32_t)
|
|
((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];
|
|
((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];
|
|
}
|
|
break;
|
|
case PIX_FMT_RGB24:
|
|
YSCALE_YUV_2_RGBX_C(uint8_t)
|
|
((uint8_t*)dest)[0]= r[Y1];
|
|
((uint8_t*)dest)[1]= g[Y1];
|
|
((uint8_t*)dest)[2]= b[Y1];
|
|
((uint8_t*)dest)[3]= r[Y2];
|
|
((uint8_t*)dest)[4]= g[Y2];
|
|
((uint8_t*)dest)[5]= b[Y2];
|
|
dest+=6;
|
|
}
|
|
break;
|
|
case PIX_FMT_BGR24:
|
|
YSCALE_YUV_2_RGBX_C(uint8_t)
|
|
((uint8_t*)dest)[0]= b[Y1];
|
|
((uint8_t*)dest)[1]= g[Y1];
|
|
((uint8_t*)dest)[2]= r[Y1];
|
|
((uint8_t*)dest)[3]= b[Y2];
|
|
((uint8_t*)dest)[4]= g[Y2];
|
|
((uint8_t*)dest)[5]= r[Y2];
|
|
dest+=6;
|
|
}
|
|
break;
|
|
case PIX_FMT_RGB565:
|
|
case PIX_FMT_BGR565:
|
|
{
|
|
const int dr1= dither_2x2_8[y&1 ][0];
|
|
const int dg1= dither_2x2_4[y&1 ][0];
|
|
const int db1= dither_2x2_8[(y&1)^1][0];
|
|
const int dr2= dither_2x2_8[y&1 ][1];
|
|
const int dg2= dither_2x2_4[y&1 ][1];
|
|
const int db2= dither_2x2_8[(y&1)^1][1];
|
|
YSCALE_YUV_2_RGBX_C(uint16_t)
|
|
((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
|
|
((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
|
|
}
|
|
}
|
|
break;
|
|
case PIX_FMT_RGB555:
|
|
case PIX_FMT_BGR555:
|
|
{
|
|
const int dr1= dither_2x2_8[y&1 ][0];
|
|
const int dg1= dither_2x2_8[y&1 ][1];
|
|
const int db1= dither_2x2_8[(y&1)^1][0];
|
|
const int dr2= dither_2x2_8[y&1 ][1];
|
|
const int dg2= dither_2x2_8[y&1 ][0];
|
|
const int db2= dither_2x2_8[(y&1)^1][1];
|
|
YSCALE_YUV_2_RGBX_C(uint16_t)
|
|
((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
|
|
((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
|
|
}
|
|
}
|
|
break;
|
|
case PIX_FMT_RGB8:
|
|
case PIX_FMT_BGR8:
|
|
{
|
|
const uint8_t * const d64= dither_8x8_73[y&7];
|
|
const uint8_t * const d32= dither_8x8_32[y&7];
|
|
YSCALE_YUV_2_RGBX_C(uint8_t)
|
|
((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];
|
|
((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];
|
|
}
|
|
}
|
|
break;
|
|
case PIX_FMT_RGB4:
|
|
case PIX_FMT_BGR4:
|
|
{
|
|
const uint8_t * const d64= dither_8x8_73 [y&7];
|
|
const uint8_t * const d128=dither_8x8_220[y&7];
|
|
YSCALE_YUV_2_RGBX_C(uint8_t)
|
|
((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]
|
|
+((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);
|
|
}
|
|
}
|
|
break;
|
|
case PIX_FMT_RGB4_BYTE:
|
|
case PIX_FMT_BGR4_BYTE:
|
|
{
|
|
const uint8_t * const d64= dither_8x8_73 [y&7];
|
|
const uint8_t * const d128=dither_8x8_220[y&7];
|
|
YSCALE_YUV_2_RGBX_C(uint8_t)
|
|
((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];
|
|
((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];
|
|
}
|
|
}
|
|
break;
|
|
case PIX_FMT_MONOBLACK:
|
|
{
|
|
const uint8_t * const d128=dither_8x8_220[y&7];
|
|
uint8_t *g= c->table_gU[128] + c->table_gV[128];
|
|
int acc=0;
|
|
for (i=0; i<dstW-1; i+=2){
|
|
int j;
|
|
int Y1=1<<18;
|
|
int Y2=1<<18;
|
|
|
|
for (j=0; j<lumFilterSize; j++)
|
|
{
|
|
Y1 += lumSrc[j][i] * lumFilter[j];
|
|
Y2 += lumSrc[j][i+1] * lumFilter[j];
|
|
}
|
|
Y1>>=19;
|
|
Y2>>=19;
|
|
if ((Y1|Y2)&256)
|
|
{
|
|
if (Y1>255) Y1=255;
|
|
else if (Y1<0)Y1=0;
|
|
if (Y2>255) Y2=255;
|
|
else if (Y2<0)Y2=0;
|
|
}
|
|
acc+= acc + g[Y1+d128[(i+0)&7]];
|
|
acc+= acc + g[Y2+d128[(i+1)&7]];
|
|
if ((i&7)==6){
|
|
((uint8_t*)dest)[0]= acc;
|
|
dest++;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case PIX_FMT_YUYV422:
|
|
YSCALE_YUV_2_PACKEDX_C(void)
|
|
((uint8_t*)dest)[2*i2+0]= Y1;
|
|
((uint8_t*)dest)[2*i2+1]= U;
|
|
((uint8_t*)dest)[2*i2+2]= Y2;
|
|
((uint8_t*)dest)[2*i2+3]= V;
|
|
}
|
|
break;
|
|
case PIX_FMT_UYVY422:
|
|
YSCALE_YUV_2_PACKEDX_C(void)
|
|
((uint8_t*)dest)[2*i2+0]= U;
|
|
((uint8_t*)dest)[2*i2+1]= Y1;
|
|
((uint8_t*)dest)[2*i2+2]= V;
|
|
((uint8_t*)dest)[2*i2+3]= Y2;
|
|
}
|
|
break;
|
|
case PIX_FMT_GRAY16BE:
|
|
YSCALE_YUV_2_GRAY16_C(void)
|
|
((uint8_t*)dest)[2*i2+0]= Y1>>8;
|
|
((uint8_t*)dest)[2*i2+1]= Y1;
|
|
((uint8_t*)dest)[2*i2+2]= Y2>>8;
|
|
((uint8_t*)dest)[2*i2+3]= Y2;
|
|
}
|
|
break;
|
|
case PIX_FMT_GRAY16LE:
|
|
YSCALE_YUV_2_GRAY16_C(void)
|
|
((uint8_t*)dest)[2*i2+0]= Y1;
|
|
((uint8_t*)dest)[2*i2+1]= Y1>>8;
|
|
((uint8_t*)dest)[2*i2+2]= Y2;
|
|
((uint8_t*)dest)[2*i2+3]= Y2>>8;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
//Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
|
|
//Plain C versions
|
|
#if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT) || !defined(CONFIG_GPL)
|
|
#define COMPILE_C
|
|
#endif
|
|
|
|
#ifdef ARCH_POWERPC
|
|
#if (defined (HAVE_ALTIVEC) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
|
|
#define COMPILE_ALTIVEC
|
|
#endif //HAVE_ALTIVEC
|
|
#endif //ARCH_POWERPC
|
|
|
|
#if defined(ARCH_X86)
|
|
|
|
#if ((defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
|
|
#define COMPILE_MMX
|
|
#endif
|
|
|
|
#if (defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
|
|
#define COMPILE_MMX2
|
|
#endif
|
|
|
|
#if ((defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
|
|
#define COMPILE_3DNOW
|
|
#endif
|
|
#endif //ARCH_X86 || ARCH_X86_64
|
|
|
|
#undef HAVE_MMX
|
|
#undef HAVE_MMX2
|
|
#undef HAVE_3DNOW
|
|
|
|
#ifdef COMPILE_C
|
|
#undef HAVE_MMX
|
|
#undef HAVE_MMX2
|
|
#undef HAVE_3DNOW
|
|
#undef HAVE_ALTIVEC
|
|
#define RENAME(a) a ## _C
|
|
#include "swscale_template.c"
|
|
#endif
|
|
|
|
#ifdef COMPILE_ALTIVEC
|
|
#undef RENAME
|
|
#define HAVE_ALTIVEC
|
|
#define RENAME(a) a ## _altivec
|
|
#include "swscale_template.c"
|
|
#endif
|
|
|
|
#if defined(ARCH_X86)
|
|
|
|
//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 //ARCH_X86 || ARCH_X86_64
|
|
|
|
// minor note: the HAVE_xyz is messed up after that line so don't use it
|
|
|
|
static double getSplineCoeff(double a, double b, double c, double d, double dist)
|
|
{
|
|
// printf("%f %f %f %f %f\n", a,b,c,d,dist);
|
|
if (dist<=1.0) return ((d*dist + c)*dist + b)*dist +a;
|
|
else return getSplineCoeff( 0.0,
|
|
b+ 2.0*c + 3.0*d,
|
|
c + 3.0*d,
|
|
-b- 3.0*c - 6.0*d,
|
|
dist-1.0);
|
|
}
|
|
|
|
static inline int 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, double param[2])
|
|
{
|
|
int i;
|
|
int filterSize;
|
|
int filter2Size;
|
|
int minFilterSize;
|
|
double *filter=NULL;
|
|
double *filter2=NULL;
|
|
int ret= -1;
|
|
#if defined(ARCH_X86)
|
|
if (flags & SWS_CPU_CAPS_MMX)
|
|
asm volatile("emms\n\t"::: "memory"); //FIXME this should not be required but it IS (even for non-MMX versions)
|
|
#endif
|
|
|
|
// Note the +1 is for the MMXscaler which reads over the end
|
|
*filterPos = av_malloc((dstW+1)*sizeof(int16_t));
|
|
|
|
if (FFABS(xInc - 0x10000) <10) // unscaled
|
|
{
|
|
int i;
|
|
filterSize= 1;
|
|
filter= av_malloc(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= av_malloc(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_AREA)) || (flags&SWS_FAST_BILINEAR)) // 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
|
|
filter= av_malloc(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;
|
|
//Bilinear upscale / linear interpolate / Area averaging
|
|
for (j=0; j<filterSize; j++)
|
|
{
|
|
double d= FFABS((xx<<16) - xDstInSrc)/(double)(1<<16);
|
|
double coeff= 1.0 - d;
|
|
if (coeff<0) coeff=0;
|
|
filter[i*filterSize + j]= coeff;
|
|
xx++;
|
|
}
|
|
xDstInSrc+= xInc;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
double xDstInSrc;
|
|
double sizeFactor, filterSizeInSrc;
|
|
const double xInc1= (double)xInc / (double)(1<<16);
|
|
|
|
if (flags&SWS_BICUBIC) sizeFactor= 4.0;
|
|
else if (flags&SWS_X) sizeFactor= 8.0;
|
|
else if (flags&SWS_AREA) sizeFactor= 1.0; //downscale only, for upscale it is bilinear
|
|
else if (flags&SWS_GAUSS) sizeFactor= 8.0; // infinite ;)
|
|
else if (flags&SWS_LANCZOS) sizeFactor= param[0] != SWS_PARAM_DEFAULT ? 2.0*param[0] : 6.0;
|
|
else if (flags&SWS_SINC) sizeFactor= 20.0; // infinite ;)
|
|
else if (flags&SWS_SPLINE) sizeFactor= 20.0; // infinite ;)
|
|
else if (flags&SWS_BILINEAR) sizeFactor= 2.0;
|
|
else {
|
|
sizeFactor= 0.0; //GCC warning killer
|
|
assert(0);
|
|
}
|
|
|
|
if (xInc1 <= 1.0) filterSizeInSrc= sizeFactor; // upscale
|
|
else filterSizeInSrc= sizeFactor*srcW / (double)dstW;
|
|
|
|
filterSize= (int)ceil(1 + filterSizeInSrc); // will be reduced later if possible
|
|
if (filterSize > srcW-2) filterSize=srcW-2;
|
|
|
|
filter= av_malloc(dstW*sizeof(double)*filterSize);
|
|
|
|
xDstInSrc= xInc1 / 2.0 - 0.5;
|
|
for (i=0; i<dstW; i++)
|
|
{
|
|
int xx= (int)(xDstInSrc - (filterSize-1)*0.5 + 0.5);
|
|
int j;
|
|
(*filterPos)[i]= xx;
|
|
for (j=0; j<filterSize; j++)
|
|
{
|
|
double d= FFABS(xx - xDstInSrc)/filterSizeInSrc*sizeFactor;
|
|
double coeff;
|
|
if (flags & SWS_BICUBIC)
|
|
{
|
|
double B= param[0] != SWS_PARAM_DEFAULT ? param[0] : 0.0;
|
|
double C= param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6;
|
|
|
|
if (d<1.0)
|
|
coeff = (12-9*B-6*C)*d*d*d + (-18+12*B+6*C)*d*d + 6-2*B;
|
|
else if (d<2.0)
|
|
coeff = (-B-6*C)*d*d*d + (6*B+30*C)*d*d + (-12*B-48*C)*d +8*B+24*C;
|
|
else
|
|
coeff=0.0;
|
|
}
|
|
/* else if (flags & SWS_X)
|
|
{
|
|
double p= param ? param*0.01 : 0.3;
|
|
coeff = d ? sin(d*PI)/(d*PI) : 1.0;
|
|
coeff*= pow(2.0, - p*d*d);
|
|
}*/
|
|
else if (flags & SWS_X)
|
|
{
|
|
double A= param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
|
|
|
|
if (d<1.0)
|
|
coeff = cos(d*PI);
|
|
else
|
|
coeff=-1.0;
|
|
if (coeff<0.0) coeff= -pow(-coeff, A);
|
|
else coeff= pow( coeff, A);
|
|
coeff= coeff*0.5 + 0.5;
|
|
}
|
|
else if (flags & SWS_AREA)
|
|
{
|
|
double srcPixelSize= 1.0/xInc1;
|
|
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 if (flags & SWS_GAUSS)
|
|
{
|
|
double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
|
|
coeff = pow(2.0, - p*d*d);
|
|
}
|
|
else if (flags & SWS_SINC)
|
|
{
|
|
coeff = d ? sin(d*PI)/(d*PI) : 1.0;
|
|
}
|
|
else if (flags & SWS_LANCZOS)
|
|
{
|
|
double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
|
|
coeff = d ? sin(d*PI)*sin(d*PI/p)/(d*d*PI*PI/p) : 1.0;
|
|
if (d>p) coeff=0;
|
|
}
|
|
else if (flags & SWS_BILINEAR)
|
|
{
|
|
coeff= 1.0 - d;
|
|
if (coeff<0) coeff=0;
|
|
}
|
|
else if (flags & SWS_SPLINE)
|
|
{
|
|
double p=-2.196152422706632;
|
|
coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, d);
|
|
}
|
|
else {
|
|
coeff= 0.0; //GCC warning killer
|
|
assert(0);
|
|
}
|
|
|
|
filter[i*filterSize + j]= coeff;
|
|
xx++;
|
|
}
|
|
xDstInSrc+= xInc1;
|
|
}
|
|
}
|
|
|
|
/* apply src & dst Filter to filter -> filter2
|
|
av_free(filter);
|
|
*/
|
|
assert(filterSize>0);
|
|
filter2Size= filterSize;
|
|
if (srcFilter) filter2Size+= srcFilter->length - 1;
|
|
if (dstFilter) filter2Size+= dstFilter->length - 1;
|
|
assert(filter2Size>0);
|
|
filter2= av_malloc(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= sws_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) sws_freeVec(outVec);
|
|
}
|
|
av_freep(&filter);
|
|
|
|
/* try to reduce the filter-size (step1 find size and shift left) */
|
|
// Assume it is 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 += FFABS(filter2[i*filter2Size]);
|
|
|
|
if (cutOff > SWS_MAX_REDUCE_CUTOFF) break;
|
|
|
|
/* preserve monotonicity because the core can't 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 += FFABS(filter2[i*filter2Size + j]);
|
|
|
|
if (cutOff > SWS_MAX_REDUCE_CUTOFF) break;
|
|
min--;
|
|
}
|
|
|
|
if (min>minFilterSize) minFilterSize= min;
|
|
}
|
|
|
|
if (flags & SWS_CPU_CAPS_ALTIVEC) {
|
|
// we can handle the special case 4,
|
|
// so we don't want to go to the full 8
|
|
if (minFilterSize < 5)
|
|
filterAlign = 4;
|
|
|
|
// we really don't want to waste our time
|
|
// doing useless computation, so fall-back on
|
|
// the scalar C code for very small filter.
|
|
// vectorizing is worth it only if you have
|
|
// decent-sized vector.
|
|
if (minFilterSize < 3)
|
|
filterAlign = 1;
|
|
}
|
|
|
|
if (flags & SWS_CPU_CAPS_MMX) {
|
|
// special case for unscaled vertical filtering
|
|
if (minFilterSize == 1 && filterAlign == 2)
|
|
filterAlign= 1;
|
|
}
|
|
|
|
assert(minFilterSize > 0);
|
|
filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
|
|
assert(filterSize > 0);
|
|
filter= av_malloc(filterSize*dstW*sizeof(double));
|
|
if (filterSize >= MAX_FILTER_SIZE*16/((flags&SWS_ACCURATE_RND) ? APCK_SIZE : 16) || !filter)
|
|
goto error;
|
|
*outFilterSize= filterSize;
|
|
|
|
if (flags&SWS_PRINT_INFO)
|
|
av_log(NULL, AV_LOG_VERBOSE, "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];
|
|
}
|
|
}
|
|
|
|
|
|
//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= FFMAX(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= FFMIN(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
|
|
/* align at 16 for AltiVec (needed by hScale_altivec_real) */
|
|
*outFilter= av_mallocz(*outFilterSize*(dstW+1)*sizeof(int16_t));
|
|
|
|
/* Normalize & Store in outFilter */
|
|
for (i=0; i<dstW; i++)
|
|
{
|
|
int j;
|
|
double error=0;
|
|
double sum=0;
|
|
double scale= one;
|
|
|
|
for (j=0; j<filterSize; j++)
|
|
{
|
|
sum+= filter[i*filterSize + j];
|
|
}
|
|
scale/= sum;
|
|
for (j=0; j<*outFilterSize; j++)
|
|
{
|
|
double v= filter[i*filterSize + j]*scale + error;
|
|
int intV= floor(v + 0.5);
|
|
(*outFilter)[i*(*outFilterSize) + j]= intV;
|
|
error = v - intV;
|
|
}
|
|
}
|
|
|
|
(*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)];
|
|
}
|
|
|
|
ret=0;
|
|
error:
|
|
av_free(filter);
|
|
av_free(filter2);
|
|
return ret;
|
|
}
|
|
|
|
#ifdef COMPILE_MMX2
|
|
static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode, int16_t *filter, int32_t *filterPos, int numSplits)
|
|
{
|
|
uint8_t *fragmentA;
|
|
long imm8OfPShufW1A;
|
|
long imm8OfPShufW2A;
|
|
long fragmentLengthA;
|
|
uint8_t *fragmentB;
|
|
long imm8OfPShufW1B;
|
|
long imm8OfPShufW2B;
|
|
long fragmentLengthB;
|
|
int fragmentPos;
|
|
|
|
int xpos, i;
|
|
|
|
// create an optimized horizontal scaling routine
|
|
|
|
//code fragment
|
|
|
|
asm volatile(
|
|
"jmp 9f \n\t"
|
|
// Begin
|
|
"0: \n\t"
|
|
"movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
|
|
"movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
|
|
"movd 1(%%"REG_c", %%"REG_S"), %%mm1 \n\t"
|
|
"punpcklbw %%mm7, %%mm1 \n\t"
|
|
"punpcklbw %%mm7, %%mm0 \n\t"
|
|
"pshufw $0xFF, %%mm1, %%mm1 \n\t"
|
|
"1: \n\t"
|
|
"pshufw $0xFF, %%mm0, %%mm0 \n\t"
|
|
"2: \n\t"
|
|
"psubw %%mm1, %%mm0 \n\t"
|
|
"movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
|
|
"pmullw %%mm3, %%mm0 \n\t"
|
|
"psllw $7, %%mm1 \n\t"
|
|
"paddw %%mm1, %%mm0 \n\t"
|
|
|
|
"movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
|
|
|
|
"add $8, %%"REG_a" \n\t"
|
|
// End
|
|
"9: \n\t"
|
|
// "int $3 \n\t"
|
|
"lea " LOCAL_MANGLE(0b) ", %0 \n\t"
|
|
"lea " LOCAL_MANGLE(1b) ", %1 \n\t"
|
|
"lea " LOCAL_MANGLE(2b) ", %2 \n\t"
|
|
"dec %1 \n\t"
|
|
"dec %2 \n\t"
|
|
"sub %0, %1 \n\t"
|
|
"sub %0, %2 \n\t"
|
|
"lea " LOCAL_MANGLE(9b) ", %3 \n\t"
|
|
"sub %0, %3 \n\t"
|
|
|
|
|
|
:"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
|
|
"=r" (fragmentLengthA)
|
|
);
|
|
|
|
asm volatile(
|
|
"jmp 9f \n\t"
|
|
// Begin
|
|
"0: \n\t"
|
|
"movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
|
|
"movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
|
|
"punpcklbw %%mm7, %%mm0 \n\t"
|
|
"pshufw $0xFF, %%mm0, %%mm1 \n\t"
|
|
"1: \n\t"
|
|
"pshufw $0xFF, %%mm0, %%mm0 \n\t"
|
|
"2: \n\t"
|
|
"psubw %%mm1, %%mm0 \n\t"
|
|
"movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
|
|
"pmullw %%mm3, %%mm0 \n\t"
|
|
"psllw $7, %%mm1 \n\t"
|
|
"paddw %%mm1, %%mm0 \n\t"
|
|
|
|
"movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
|
|
|
|
"add $8, %%"REG_a" \n\t"
|
|
// End
|
|
"9: \n\t"
|
|
// "int $3 \n\t"
|
|
"lea " LOCAL_MANGLE(0b) ", %0 \n\t"
|
|
"lea " LOCAL_MANGLE(1b) ", %1 \n\t"
|
|
"lea " LOCAL_MANGLE(2b) ", %2 \n\t"
|
|
"dec %1 \n\t"
|
|
"dec %2 \n\t"
|
|
"sub %0, %1 \n\t"
|
|
"sub %0, %2 \n\t"
|
|
"lea " LOCAL_MANGLE(9b) ", %3 \n\t"
|
|
"sub %0, %3 \n\t"
|
|
|
|
|
|
:"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
|
|
"=r" (fragmentLengthB)
|
|
);
|
|
|
|
xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
|
|
fragmentPos=0;
|
|
|
|
for (i=0; i<dstW/numSplits; 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;
|
|
|
|
filter[i ] = (( xpos & 0xFFFF) ^ 0xFFFF)>>9;
|
|
filter[i+1] = (((xpos+xInc ) & 0xFFFF) ^ 0xFFFF)>>9;
|
|
filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
|
|
filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
|
|
filterPos[i/2]= xx;
|
|
|
|
if (d+1<4)
|
|
{
|
|
int maxShift= 3-(d+1);
|
|
int shift=0;
|
|
|
|
memcpy(funnyCode + fragmentPos, fragmentB, fragmentLengthB);
|
|
|
|
funnyCode[fragmentPos + imm8OfPShufW1B]=
|
|
(a+1) | ((b+1)<<2) | ((c+1)<<4) | ((d+1)<<6);
|
|
funnyCode[fragmentPos + imm8OfPShufW2B]=
|
|
a | (b<<2) | (c<<4) | (d<<6);
|
|
|
|
if (i+3>=dstW) shift=maxShift; //avoid overread
|
|
else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
|
|
|
|
if (shift && i>=shift)
|
|
{
|
|
funnyCode[fragmentPos + imm8OfPShufW1B]+= 0x55*shift;
|
|
funnyCode[fragmentPos + imm8OfPShufW2B]+= 0x55*shift;
|
|
filterPos[i/2]-=shift;
|
|
}
|
|
|
|
fragmentPos+= fragmentLengthB;
|
|
}
|
|
else
|
|
{
|
|
int maxShift= 3-d;
|
|
int shift=0;
|
|
|
|
memcpy(funnyCode + fragmentPos, fragmentA, fragmentLengthA);
|
|
|
|
funnyCode[fragmentPos + imm8OfPShufW1A]=
|
|
funnyCode[fragmentPos + imm8OfPShufW2A]=
|
|
a | (b<<2) | (c<<4) | (d<<6);
|
|
|
|
if (i+4>=dstW) shift=maxShift; //avoid overread
|
|
else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //partial align
|
|
|
|
if (shift && i>=shift)
|
|
{
|
|
funnyCode[fragmentPos + imm8OfPShufW1A]+= 0x55*shift;
|
|
funnyCode[fragmentPos + imm8OfPShufW2A]+= 0x55*shift;
|
|
filterPos[i/2]-=shift;
|
|
}
|
|
|
|
fragmentPos+= fragmentLengthA;
|
|
}
|
|
|
|
funnyCode[fragmentPos]= RET;
|
|
}
|
|
xpos+=xInc;
|
|
}
|
|
filterPos[i/2]= xpos>>16; // needed to jump to the next part
|
|
}
|
|
#endif /* COMPILE_MMX2 */
|
|
|
|
static void globalInit(void){
|
|
// generating tables:
|
|
int i;
|
|
for (i=0; i<768; i++){
|
|
int c= av_clip_uint8(i-256);
|
|
clip_table[i]=c;
|
|
}
|
|
}
|
|
|
|
static SwsFunc getSwsFunc(int flags){
|
|
|
|
#if defined(RUNTIME_CPUDETECT) && defined (CONFIG_GPL)
|
|
#if defined(ARCH_X86)
|
|
// ordered per speed fastest first
|
|
if (flags & SWS_CPU_CAPS_MMX2)
|
|
return swScale_MMX2;
|
|
else if (flags & SWS_CPU_CAPS_3DNOW)
|
|
return swScale_3DNow;
|
|
else if (flags & SWS_CPU_CAPS_MMX)
|
|
return swScale_MMX;
|
|
else
|
|
return swScale_C;
|
|
|
|
#else
|
|
#ifdef ARCH_POWERPC
|
|
if (flags & SWS_CPU_CAPS_ALTIVEC)
|
|
return swScale_altivec;
|
|
else
|
|
return swScale_C;
|
|
#endif
|
|
return swScale_C;
|
|
#endif /* defined(ARCH_X86) */
|
|
#else //RUNTIME_CPUDETECT
|
|
#ifdef HAVE_MMX2
|
|
return swScale_MMX2;
|
|
#elif defined (HAVE_3DNOW)
|
|
return swScale_3DNow;
|
|
#elif defined (HAVE_MMX)
|
|
return swScale_MMX;
|
|
#elif defined (HAVE_ALTIVEC)
|
|
return swScale_altivec;
|
|
#else
|
|
return swScale_C;
|
|
#endif
|
|
#endif //!RUNTIME_CPUDETECT
|
|
}
|
|
|
|
static int PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
|
|
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
|
|
/* Copy Y plane */
|
|
if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
|
|
memcpy(dst, src[0], srcSliceH*dstStride[0]);
|
|
else
|
|
{
|
|
int i;
|
|
uint8_t *srcPtr= src[0];
|
|
uint8_t *dstPtr= dst;
|
|
for (i=0; i<srcSliceH; i++)
|
|
{
|
|
memcpy(dstPtr, srcPtr, c->srcW);
|
|
srcPtr+= srcStride[0];
|
|
dstPtr+= dstStride[0];
|
|
}
|
|
}
|
|
dst = dstParam[1] + dstStride[1]*srcSliceY/2;
|
|
if (c->dstFormat == PIX_FMT_NV12)
|
|
interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);
|
|
else
|
|
interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);
|
|
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int PlanarToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
|
|
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
|
|
|
|
yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
|
|
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int PlanarToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
|
|
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
|
|
|
|
yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
|
|
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int YUV422PToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
|
|
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
|
|
|
|
yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
|
|
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int YUV422PToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
|
|
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
|
|
|
|
yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
|
|
|
|
return srcSliceH;
|
|
}
|
|
|
|
/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
|
|
static int rgb2rgbWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
const int srcFormat= c->srcFormat;
|
|
const int dstFormat= c->dstFormat;
|
|
const int srcBpp= (fmt_depth(srcFormat) + 7) >> 3;
|
|
const int dstBpp= (fmt_depth(dstFormat) + 7) >> 3;
|
|
const int srcId= fmt_depth(srcFormat) >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
|
|
const int dstId= fmt_depth(dstFormat) >> 2;
|
|
void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
|
|
|
|
/* BGR -> BGR */
|
|
if ( (isBGR(srcFormat) && isBGR(dstFormat))
|
|
|| (isRGB(srcFormat) && isRGB(dstFormat))){
|
|
switch(srcId | (dstId<<4)){
|
|
case 0x34: conv= rgb16to15; break;
|
|
case 0x36: conv= rgb24to15; break;
|
|
case 0x38: conv= rgb32to15; break;
|
|
case 0x43: conv= rgb15to16; break;
|
|
case 0x46: conv= rgb24to16; break;
|
|
case 0x48: conv= rgb32to16; break;
|
|
case 0x63: conv= rgb15to24; break;
|
|
case 0x64: conv= rgb16to24; break;
|
|
case 0x68: conv= rgb32to24; break;
|
|
case 0x83: conv= rgb15to32; break;
|
|
case 0x84: conv= rgb16to32; break;
|
|
case 0x86: conv= rgb24to32; break;
|
|
default: av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
|
|
sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
|
|
}
|
|
}else if ( (isBGR(srcFormat) && isRGB(dstFormat))
|
|
|| (isRGB(srcFormat) && isBGR(dstFormat))){
|
|
switch(srcId | (dstId<<4)){
|
|
case 0x33: conv= rgb15tobgr15; break;
|
|
case 0x34: conv= rgb16tobgr15; break;
|
|
case 0x36: conv= rgb24tobgr15; break;
|
|
case 0x38: conv= rgb32tobgr15; break;
|
|
case 0x43: conv= rgb15tobgr16; break;
|
|
case 0x44: conv= rgb16tobgr16; break;
|
|
case 0x46: conv= rgb24tobgr16; break;
|
|
case 0x48: conv= rgb32tobgr16; break;
|
|
case 0x63: conv= rgb15tobgr24; break;
|
|
case 0x64: conv= rgb16tobgr24; break;
|
|
case 0x66: conv= rgb24tobgr24; break;
|
|
case 0x68: conv= rgb32tobgr24; break;
|
|
case 0x83: conv= rgb15tobgr32; break;
|
|
case 0x84: conv= rgb16tobgr32; break;
|
|
case 0x86: conv= rgb24tobgr32; break;
|
|
case 0x88: conv= rgb32tobgr32; break;
|
|
default: av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
|
|
sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
|
|
}
|
|
}else{
|
|
av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
|
|
sws_format_name(srcFormat), sws_format_name(dstFormat));
|
|
}
|
|
|
|
if(conv)
|
|
{
|
|
uint8_t *srcPtr= src[0];
|
|
if(srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1)
|
|
srcPtr += ALT32_CORR;
|
|
|
|
if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0)
|
|
conv(srcPtr, dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
|
|
else
|
|
{
|
|
int i;
|
|
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
|
|
|
|
for (i=0; i<srcSliceH; i++)
|
|
{
|
|
conv(srcPtr, dstPtr, c->srcW*srcBpp);
|
|
srcPtr+= srcStride[0];
|
|
dstPtr+= dstStride[0];
|
|
}
|
|
}
|
|
}
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
|
|
rgb24toyv12(
|
|
src[0],
|
|
dst[0]+ srcSliceY *dstStride[0],
|
|
dst[1]+(srcSliceY>>1)*dstStride[1],
|
|
dst[2]+(srcSliceY>>1)*dstStride[2],
|
|
c->srcW, srcSliceH,
|
|
dstStride[0], dstStride[1], srcStride[0]);
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int yvu9toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
int i;
|
|
|
|
/* copy Y */
|
|
if (srcStride[0]==dstStride[0] && srcStride[0] > 0)
|
|
memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
|
|
else{
|
|
uint8_t *srcPtr= src[0];
|
|
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
|
|
|
|
for (i=0; i<srcSliceH; i++)
|
|
{
|
|
memcpy(dstPtr, srcPtr, c->srcW);
|
|
srcPtr+= srcStride[0];
|
|
dstPtr+= dstStride[0];
|
|
}
|
|
}
|
|
|
|
if (c->dstFormat==PIX_FMT_YUV420P){
|
|
planar2x(src[1], dst[1], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[1]);
|
|
planar2x(src[2], dst[2], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[2]);
|
|
}else{
|
|
planar2x(src[1], dst[2], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[2]);
|
|
planar2x(src[2], dst[1], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[1]);
|
|
}
|
|
return srcSliceH;
|
|
}
|
|
|
|
/* unscaled copy like stuff (assumes nearly identical formats) */
|
|
static int packedCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[])
|
|
{
|
|
if (dstStride[0]==srcStride[0] && srcStride[0] > 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 <= FFABS(dstStride[0])
|
|
&& length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
|
|
assert(length!=0);
|
|
|
|
for (i=0; i<srcSliceH; i++)
|
|
{
|
|
memcpy(dstPtr, srcPtr, length);
|
|
srcPtr+= srcStride[0];
|
|
dstPtr+= dstStride[0];
|
|
}
|
|
}
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int planarCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[])
|
|
{
|
|
int plane;
|
|
for (plane=0; plane<3; plane++)
|
|
{
|
|
int length= plane==0 ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
|
|
int y= plane==0 ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
|
|
int height= plane==0 ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
|
|
|
|
if ((isGray(c->srcFormat) || isGray(c->dstFormat)) && plane>0)
|
|
{
|
|
if (!isGray(c->dstFormat))
|
|
memset(dst[plane], 128, dstStride[plane]*height);
|
|
}
|
|
else
|
|
{
|
|
if (dstStride[plane]==srcStride[plane] && srcStride[plane] > 0)
|
|
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];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int gray16togray(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
|
|
int length= c->srcW;
|
|
int y= srcSliceY;
|
|
int height= srcSliceH;
|
|
int i, j;
|
|
uint8_t *srcPtr= src[0];
|
|
uint8_t *dstPtr= dst[0] + dstStride[0]*y;
|
|
|
|
if (!isGray(c->dstFormat)){
|
|
int height= -((-srcSliceH)>>c->chrDstVSubSample);
|
|
memset(dst[1], 128, dstStride[1]*height);
|
|
memset(dst[2], 128, dstStride[2]*height);
|
|
}
|
|
if (c->srcFormat == PIX_FMT_GRAY16LE) srcPtr++;
|
|
for (i=0; i<height; i++)
|
|
{
|
|
for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
|
|
srcPtr+= srcStride[0];
|
|
dstPtr+= dstStride[0];
|
|
}
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int graytogray16(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
|
|
int length= c->srcW;
|
|
int y= srcSliceY;
|
|
int height= srcSliceH;
|
|
int i, j;
|
|
uint8_t *srcPtr= src[0];
|
|
uint8_t *dstPtr= dst[0] + dstStride[0]*y;
|
|
for (i=0; i<height; i++)
|
|
{
|
|
for (j=0; j<length; j++)
|
|
{
|
|
dstPtr[j<<1] = srcPtr[j];
|
|
dstPtr[(j<<1)+1] = srcPtr[j];
|
|
}
|
|
srcPtr+= srcStride[0];
|
|
dstPtr+= dstStride[0];
|
|
}
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int gray16swap(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
|
|
int length= c->srcW;
|
|
int y= srcSliceY;
|
|
int height= srcSliceH;
|
|
int i, j;
|
|
uint16_t *srcPtr= (uint16_t*)src[0];
|
|
uint16_t *dstPtr= (uint16_t*)(dst[0] + dstStride[0]*y/2);
|
|
for (i=0; i<height; i++)
|
|
{
|
|
for (j=0; j<length; j++) dstPtr[j] = bswap_16(srcPtr[j]);
|
|
srcPtr+= srcStride[0]/2;
|
|
dstPtr+= dstStride[0]/2;
|
|
}
|
|
return srcSliceH;
|
|
}
|
|
|
|
|
|
static void getSubSampleFactors(int *h, int *v, int format){
|
|
switch(format){
|
|
case PIX_FMT_UYVY422:
|
|
case PIX_FMT_YUYV422:
|
|
*h=1;
|
|
*v=0;
|
|
break;
|
|
case PIX_FMT_YUV420P:
|
|
case PIX_FMT_YUVA420P:
|
|
case PIX_FMT_GRAY16BE:
|
|
case PIX_FMT_GRAY16LE:
|
|
case PIX_FMT_GRAY8: //FIXME remove after different subsamplings are fully implemented
|
|
case PIX_FMT_NV12:
|
|
case PIX_FMT_NV21:
|
|
*h=1;
|
|
*v=1;
|
|
break;
|
|
case PIX_FMT_YUV440P:
|
|
*h=0;
|
|
*v=1;
|
|
break;
|
|
case PIX_FMT_YUV410P:
|
|
*h=2;
|
|
*v=2;
|
|
break;
|
|
case PIX_FMT_YUV444P:
|
|
*h=0;
|
|
*v=0;
|
|
break;
|
|
case PIX_FMT_YUV422P:
|
|
*h=1;
|
|
*v=0;
|
|
break;
|
|
case PIX_FMT_YUV411P:
|
|
*h=2;
|
|
*v=0;
|
|
break;
|
|
default:
|
|
*h=0;
|
|
*v=0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static uint16_t roundToInt16(int64_t f){
|
|
int r= (f + (1<<15))>>16;
|
|
if (r<-0x7FFF) return 0x8000;
|
|
else if (r> 0x7FFF) return 0x7FFF;
|
|
else return r;
|
|
}
|
|
|
|
/**
|
|
* @param inv_table the yuv2rgb coeffs, normally Inverse_Table_6_9[x]
|
|
* @param fullRange if 1 then the luma range is 0..255 if 0 it is 16..235
|
|
* @return -1 if not supported
|
|
*/
|
|
int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation){
|
|
int64_t crv = inv_table[0];
|
|
int64_t cbu = inv_table[1];
|
|
int64_t cgu = -inv_table[2];
|
|
int64_t cgv = -inv_table[3];
|
|
int64_t cy = 1<<16;
|
|
int64_t oy = 0;
|
|
|
|
memcpy(c->srcColorspaceTable, inv_table, sizeof(int)*4);
|
|
memcpy(c->dstColorspaceTable, table, sizeof(int)*4);
|
|
|
|
c->brightness= brightness;
|
|
c->contrast = contrast;
|
|
c->saturation= saturation;
|
|
c->srcRange = srcRange;
|
|
c->dstRange = dstRange;
|
|
if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return 0;
|
|
|
|
c->uOffset= 0x0400040004000400LL;
|
|
c->vOffset= 0x0400040004000400LL;
|
|
|
|
if (!srcRange){
|
|
cy= (cy*255) / 219;
|
|
oy= 16<<16;
|
|
}else{
|
|
crv= (crv*224) / 255;
|
|
cbu= (cbu*224) / 255;
|
|
cgu= (cgu*224) / 255;
|
|
cgv= (cgv*224) / 255;
|
|
}
|
|
|
|
cy = (cy *contrast )>>16;
|
|
crv= (crv*contrast * saturation)>>32;
|
|
cbu= (cbu*contrast * saturation)>>32;
|
|
cgu= (cgu*contrast * saturation)>>32;
|
|
cgv= (cgv*contrast * saturation)>>32;
|
|
|
|
oy -= 256*brightness;
|
|
|
|
c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
|
|
c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
|
|
c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
|
|
c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
|
|
c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
|
|
c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
|
|
|
|
yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
|
|
//FIXME factorize
|
|
|
|
#ifdef COMPILE_ALTIVEC
|
|
if (c->flags & SWS_CPU_CAPS_ALTIVEC)
|
|
yuv2rgb_altivec_init_tables (c, inv_table, brightness, contrast, saturation);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @return -1 if not supported
|
|
*/
|
|
int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation){
|
|
if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
|
|
|
|
*inv_table = c->srcColorspaceTable;
|
|
*table = c->dstColorspaceTable;
|
|
*srcRange = c->srcRange;
|
|
*dstRange = c->dstRange;
|
|
*brightness= c->brightness;
|
|
*contrast = c->contrast;
|
|
*saturation= c->saturation;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int handle_jpeg(int *format)
|
|
{
|
|
switch (*format) {
|
|
case PIX_FMT_YUVJ420P:
|
|
*format = PIX_FMT_YUV420P;
|
|
return 1;
|
|
case PIX_FMT_YUVJ422P:
|
|
*format = PIX_FMT_YUV422P;
|
|
return 1;
|
|
case PIX_FMT_YUVJ444P:
|
|
*format = PIX_FMT_YUV444P;
|
|
return 1;
|
|
case PIX_FMT_YUVJ440P:
|
|
*format = PIX_FMT_YUV440P;
|
|
return 1;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
SwsContext *sws_getContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
|
|
SwsFilter *srcFilter, SwsFilter *dstFilter, double *param){
|
|
|
|
SwsContext *c;
|
|
int i;
|
|
int usesVFilter, usesHFilter;
|
|
int unscaled, needsDither;
|
|
int srcRange, dstRange;
|
|
SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
|
|
#if defined(ARCH_X86)
|
|
if (flags & SWS_CPU_CAPS_MMX)
|
|
asm volatile("emms\n\t"::: "memory");
|
|
#endif
|
|
|
|
#if !defined(RUNTIME_CPUDETECT) || !defined (CONFIG_GPL) //ensure that the flags match the compiled variant if cpudetect is off
|
|
flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC|SWS_CPU_CAPS_BFIN);
|
|
#ifdef HAVE_MMX2
|
|
flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
|
|
#elif defined (HAVE_3DNOW)
|
|
flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
|
|
#elif defined (HAVE_MMX)
|
|
flags |= SWS_CPU_CAPS_MMX;
|
|
#elif defined (HAVE_ALTIVEC)
|
|
flags |= SWS_CPU_CAPS_ALTIVEC;
|
|
#elif defined (ARCH_BFIN)
|
|
flags |= SWS_CPU_CAPS_BFIN;
|
|
#endif
|
|
#endif /* RUNTIME_CPUDETECT */
|
|
if (clip_table[512] != 255) globalInit();
|
|
if (!rgb15to16) sws_rgb2rgb_init(flags);
|
|
|
|
unscaled = (srcW == dstW && srcH == dstH);
|
|
needsDither= (isBGR(dstFormat) || isRGB(dstFormat))
|
|
&& (fmt_depth(dstFormat))<24
|
|
&& ((fmt_depth(dstFormat))<(fmt_depth(srcFormat)) || (!(isRGB(srcFormat) || isBGR(srcFormat))));
|
|
|
|
srcRange = handle_jpeg(&srcFormat);
|
|
dstRange = handle_jpeg(&dstFormat);
|
|
|
|
if (!isSupportedIn(srcFormat))
|
|
{
|
|
av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as input pixel format\n", sws_format_name(srcFormat));
|
|
return NULL;
|
|
}
|
|
if (!isSupportedOut(dstFormat))
|
|
{
|
|
av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as output pixel format\n", sws_format_name(dstFormat));
|
|
return NULL;
|
|
}
|
|
|
|
i= flags & ( SWS_POINT
|
|
|SWS_AREA
|
|
|SWS_BILINEAR
|
|
|SWS_FAST_BILINEAR
|
|
|SWS_BICUBIC
|
|
|SWS_X
|
|
|SWS_GAUSS
|
|
|SWS_LANCZOS
|
|
|SWS_SINC
|
|
|SWS_SPLINE
|
|
|SWS_BICUBLIN);
|
|
if(!i || (i & (i-1)))
|
|
{
|
|
av_log(NULL, AV_LOG_ERROR, "swScaler: Exactly one scaler algorithm must be choosen\n");
|
|
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
|
|
{
|
|
av_log(NULL, AV_LOG_ERROR, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
|
|
srcW, srcH, dstW, dstH);
|
|
return NULL;
|
|
}
|
|
if(srcW > VOFW || dstW > VOFW){
|
|
av_log(NULL, AV_LOG_ERROR, "swScaler: Compile time max width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n");
|
|
return NULL;
|
|
}
|
|
|
|
if (!dstFilter) dstFilter= &dummyFilter;
|
|
if (!srcFilter) srcFilter= &dummyFilter;
|
|
|
|
c= av_mallocz(sizeof(SwsContext));
|
|
|
|
c->av_class = &sws_context_class;
|
|
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;
|
|
c->vRounder= 4* 0x0001000100010001ULL;
|
|
|
|
usesHFilter= usesVFilter= 0;
|
|
if (dstFilter->lumV && dstFilter->lumV->length>1) usesVFilter=1;
|
|
if (dstFilter->lumH && dstFilter->lumH->length>1) usesHFilter=1;
|
|
if (dstFilter->chrV && dstFilter->chrV->length>1) usesVFilter=1;
|
|
if (dstFilter->chrH && dstFilter->chrH->length>1) usesHFilter=1;
|
|
if (srcFilter->lumV && srcFilter->lumV->length>1) usesVFilter=1;
|
|
if (srcFilter->lumH && srcFilter->lumH->length>1) usesHFilter=1;
|
|
if (srcFilter->chrV && srcFilter->chrV->length>1) usesVFilter=1;
|
|
if (srcFilter->chrH && srcFilter->chrH->length>1) usesHFilter=1;
|
|
|
|
getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
|
|
getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
|
|
|
|
// reuse chroma for 2 pixles rgb/bgr unless user wants full chroma interpolation
|
|
if ((isBGR(dstFormat) || isRGB(dstFormat)) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
|
|
|
|
// drop some chroma lines if the user wants it
|
|
c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
|
|
c->chrSrcVSubSample+= c->vChrDrop;
|
|
|
|
// drop every 2. pixel for chroma calculation unless user wants full chroma
|
|
if ((isBGR(srcFormat) || isRGB(srcFormat)) && !(flags&SWS_FULL_CHR_H_INP)
|
|
&& srcFormat!=PIX_FMT_RGB8 && srcFormat!=PIX_FMT_BGR8
|
|
&& srcFormat!=PIX_FMT_RGB4 && srcFormat!=PIX_FMT_BGR4
|
|
&& srcFormat!=PIX_FMT_RGB4_BYTE && srcFormat!=PIX_FMT_BGR4_BYTE
|
|
&& ((dstW>>c->chrDstHSubSample) <= (srcW>>1) || (flags&(SWS_FAST_BILINEAR|SWS_POINT))))
|
|
c->chrSrcHSubSample=1;
|
|
|
|
if (param){
|
|
c->param[0] = param[0];
|
|
c->param[1] = param[1];
|
|
}else{
|
|
c->param[0] =
|
|
c->param[1] = SWS_PARAM_DEFAULT;
|
|
}
|
|
|
|
c->chrIntHSubSample= c->chrDstHSubSample;
|
|
c->chrIntVSubSample= c->chrSrcVSubSample;
|
|
|
|
// Note the -((-x)>>y) is so that we always round toward +inf.
|
|
c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
|
|
c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
|
|
c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
|
|
c->chrDstH= -((-dstH) >> c->chrDstVSubSample);
|
|
|
|
sws_setColorspaceDetails(c, Inverse_Table_6_9[SWS_CS_DEFAULT], srcRange, Inverse_Table_6_9[SWS_CS_DEFAULT] /* FIXME*/, dstRange, 0, 1<<16, 1<<16);
|
|
|
|
/* unscaled special Cases */
|
|
if (unscaled && !usesHFilter && !usesVFilter && (srcRange == dstRange || isBGR(dstFormat) || isRGB(dstFormat)))
|
|
{
|
|
/* yv12_to_nv12 */
|
|
if (srcFormat == PIX_FMT_YUV420P && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21))
|
|
{
|
|
c->swScale= PlanarToNV12Wrapper;
|
|
}
|
|
#ifdef CONFIG_GPL
|
|
/* yuv2bgr */
|
|
if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P) && (isBGR(dstFormat) || isRGB(dstFormat)))
|
|
{
|
|
c->swScale= yuv2rgb_get_func_ptr(c);
|
|
}
|
|
#endif
|
|
|
|
if (srcFormat==PIX_FMT_YUV410P && dstFormat==PIX_FMT_YUV420P)
|
|
{
|
|
c->swScale= yvu9toyv12Wrapper;
|
|
}
|
|
|
|
/* bgr24toYV12 */
|
|
if (srcFormat==PIX_FMT_BGR24 && dstFormat==PIX_FMT_YUV420P)
|
|
c->swScale= bgr24toyv12Wrapper;
|
|
|
|
/* rgb/bgr -> rgb/bgr (no dither needed forms) */
|
|
if ( (isBGR(srcFormat) || isRGB(srcFormat))
|
|
&& (isBGR(dstFormat) || isRGB(dstFormat))
|
|
&& srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
|
|
&& srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
|
|
&& srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
|
|
&& srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
|
|
&& srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
|
|
&& srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
|
|
&& srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
|
|
&& dstFormat != PIX_FMT_RGB32_1
|
|
&& dstFormat != PIX_FMT_BGR32_1
|
|
&& (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
|
|
c->swScale= rgb2rgbWrapper;
|
|
|
|
if (srcFormat == PIX_FMT_YUV422P)
|
|
{
|
|
if (dstFormat == PIX_FMT_YUYV422)
|
|
c->swScale= YUV422PToYuy2Wrapper;
|
|
else if (dstFormat == PIX_FMT_UYVY422)
|
|
c->swScale= YUV422PToUyvyWrapper;
|
|
}
|
|
|
|
/* LQ converters if -sws 0 or -sws 4*/
|
|
if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)){
|
|
/* yv12_to_yuy2 */
|
|
if (srcFormat == PIX_FMT_YUV420P)
|
|
{
|
|
if (dstFormat == PIX_FMT_YUYV422)
|
|
c->swScale= PlanarToYuy2Wrapper;
|
|
else if (dstFormat == PIX_FMT_UYVY422)
|
|
c->swScale= PlanarToUyvyWrapper;
|
|
}
|
|
}
|
|
|
|
#ifdef COMPILE_ALTIVEC
|
|
if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
|
|
srcFormat == PIX_FMT_YUV420P) {
|
|
// unscaled YV12 -> packed YUV, we want speed
|
|
if (dstFormat == PIX_FMT_YUYV422)
|
|
c->swScale= yv12toyuy2_unscaled_altivec;
|
|
else if (dstFormat == PIX_FMT_UYVY422)
|
|
c->swScale= yv12touyvy_unscaled_altivec;
|
|
}
|
|
#endif
|
|
|
|
/* simple copy */
|
|
if ( srcFormat == dstFormat
|
|
|| (isPlanarYUV(srcFormat) && isGray(dstFormat))
|
|
|| (isPlanarYUV(dstFormat) && isGray(srcFormat)))
|
|
{
|
|
if (isPacked(c->srcFormat))
|
|
c->swScale= packedCopy;
|
|
else /* Planar YUV or gray */
|
|
c->swScale= planarCopy;
|
|
}
|
|
|
|
/* gray16{le,be} conversions */
|
|
if (isGray16(srcFormat) && (isPlanarYUV(dstFormat) || (dstFormat == PIX_FMT_GRAY8)))
|
|
{
|
|
c->swScale= gray16togray;
|
|
}
|
|
if ((isPlanarYUV(srcFormat) || (srcFormat == PIX_FMT_GRAY8)) && isGray16(dstFormat))
|
|
{
|
|
c->swScale= graytogray16;
|
|
}
|
|
if (srcFormat != dstFormat && isGray16(srcFormat) && isGray16(dstFormat))
|
|
{
|
|
c->swScale= gray16swap;
|
|
}
|
|
|
|
#ifdef ARCH_BFIN
|
|
if (flags & SWS_CPU_CAPS_BFIN)
|
|
ff_bfin_get_unscaled_swscale (c);
|
|
#endif
|
|
|
|
if (c->swScale){
|
|
if (flags&SWS_PRINT_INFO)
|
|
av_log(c, AV_LOG_INFO, "using unscaled %s -> %s special converter\n",
|
|
sws_format_name(srcFormat), sws_format_name(dstFormat));
|
|
return c;
|
|
}
|
|
}
|
|
|
|
if (flags & SWS_CPU_CAPS_MMX2)
|
|
{
|
|
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)
|
|
av_log(c, AV_LOG_INFO, "output Width is not a multiple of 32 -> no MMX2 scaler\n");
|
|
}
|
|
if (usesHFilter) c->canMMX2BeUsed=0;
|
|
}
|
|
else
|
|
c->canMMX2BeUsed=0;
|
|
|
|
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 no one should 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 don't use the x86asm scaler if mmx is available
|
|
else if (flags & SWS_CPU_CAPS_MMX)
|
|
{
|
|
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=
|
|
(flags & SWS_CPU_CAPS_MMX) ? 4 :
|
|
(flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
|
|
1;
|
|
|
|
initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
|
|
srcW , dstW, filterAlign, 1<<14,
|
|
(flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
|
|
srcFilter->lumH, dstFilter->lumH, c->param);
|
|
initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
|
|
c->chrSrcW, c->chrDstW, filterAlign, 1<<14,
|
|
(flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
|
|
srcFilter->chrH, dstFilter->chrH, c->param);
|
|
|
|
#define MAX_FUNNY_CODE_SIZE 10000
|
|
#if defined(COMPILE_MMX2)
|
|
// can't downscale !!!
|
|
if (c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
|
|
{
|
|
#ifdef MAP_ANONYMOUS
|
|
c->funnyYCode = (uint8_t*)mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
|
|
c->funnyUVCode = (uint8_t*)mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
|
|
#else
|
|
c->funnyYCode = av_malloc(MAX_FUNNY_CODE_SIZE);
|
|
c->funnyUVCode = av_malloc(MAX_FUNNY_CODE_SIZE);
|
|
#endif
|
|
|
|
c->lumMmx2Filter = av_malloc((dstW /8+8)*sizeof(int16_t));
|
|
c->chrMmx2Filter = av_malloc((c->chrDstW /4+8)*sizeof(int16_t));
|
|
c->lumMmx2FilterPos= av_malloc((dstW /2/8+8)*sizeof(int32_t));
|
|
c->chrMmx2FilterPos= av_malloc((c->chrDstW/2/4+8)*sizeof(int32_t));
|
|
|
|
initMMX2HScaler( dstW, c->lumXInc, c->funnyYCode , c->lumMmx2Filter, c->lumMmx2FilterPos, 8);
|
|
initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode, c->chrMmx2Filter, c->chrMmx2FilterPos, 4);
|
|
}
|
|
#endif /* defined(COMPILE_MMX2) */
|
|
} // Init Horizontal stuff
|
|
|
|
|
|
|
|
/* precalculate vertical scaler filter coefficients */
|
|
{
|
|
const int filterAlign=
|
|
(flags & SWS_CPU_CAPS_MMX) && (flags & SWS_ACCURATE_RND) ? 2 :
|
|
(flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
|
|
1;
|
|
|
|
initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
|
|
srcH , dstH, filterAlign, (1<<12)-4,
|
|
(flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
|
|
srcFilter->lumV, dstFilter->lumV, c->param);
|
|
initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
|
|
c->chrSrcH, c->chrDstH, filterAlign, (1<<12)-4,
|
|
(flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
|
|
srcFilter->chrV, dstFilter->chrV, c->param);
|
|
|
|
#ifdef HAVE_ALTIVEC
|
|
c->vYCoeffsBank = av_malloc(sizeof (vector signed short)*c->vLumFilterSize*c->dstH);
|
|
c->vCCoeffsBank = av_malloc(sizeof (vector signed short)*c->vChrFilterSize*c->chrDstH);
|
|
|
|
for (i=0;i<c->vLumFilterSize*c->dstH;i++) {
|
|
int j;
|
|
short *p = (short *)&c->vYCoeffsBank[i];
|
|
for (j=0;j<8;j++)
|
|
p[j] = c->vLumFilter[i];
|
|
}
|
|
|
|
for (i=0;i<c->vChrFilterSize*c->chrDstH;i++) {
|
|
int j;
|
|
short *p = (short *)&c->vCCoeffsBank[i];
|
|
for (j=0;j<8;j++)
|
|
p[j] = c->vChrFilter[i];
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// Calculate Buffer Sizes so that they won't 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= FFMAX(c->vLumFilterPos[i ] + c->vLumFilterSize - 1,
|
|
((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
|
|
|
|
nextSlice>>= c->chrSrcVSubSample;
|
|
nextSlice<<= c->chrSrcVSubSample;
|
|
if (c->vLumFilterPos[i ] + c->vLumBufSize < nextSlice)
|
|
c->vLumBufSize= nextSlice - c->vLumFilterPos[i];
|
|
if (c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
|
|
c->vChrBufSize= (nextSlice>>c->chrSrcVSubSample) - c->vChrFilterPos[chrI];
|
|
}
|
|
|
|
// allocate pixbufs (we use dynamic allocation because otherwise we would need to
|
|
c->lumPixBuf= av_malloc(c->vLumBufSize*2*sizeof(int16_t*));
|
|
c->chrPixBuf= av_malloc(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)
|
|
/* align at 16 bytes for AltiVec */
|
|
for (i=0; i<c->vLumBufSize; i++)
|
|
c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= av_mallocz(VOF+1);
|
|
for (i=0; i<c->vChrBufSize; i++)
|
|
c->chrPixBuf[i]= c->chrPixBuf[i+c->vChrBufSize]= av_malloc((VOF+1)*2);
|
|
|
|
//try to avoid drawing green stuff between the right end and the stride end
|
|
for (i=0; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, (VOF+1)*2);
|
|
|
|
assert(2*VOFW == VOF);
|
|
|
|
assert(c->chrDstH <= dstH);
|
|
|
|
if (flags&SWS_PRINT_INFO)
|
|
{
|
|
#ifdef DITHER1XBPP
|
|
const char *dither= " dithered";
|
|
#else
|
|
const char *dither= "";
|
|
#endif
|
|
if (flags&SWS_FAST_BILINEAR)
|
|
av_log(c, AV_LOG_INFO, "FAST_BILINEAR scaler, ");
|
|
else if (flags&SWS_BILINEAR)
|
|
av_log(c, AV_LOG_INFO, "BILINEAR scaler, ");
|
|
else if (flags&SWS_BICUBIC)
|
|
av_log(c, AV_LOG_INFO, "BICUBIC scaler, ");
|
|
else if (flags&SWS_X)
|
|
av_log(c, AV_LOG_INFO, "Experimental scaler, ");
|
|
else if (flags&SWS_POINT)
|
|
av_log(c, AV_LOG_INFO, "Nearest Neighbor / POINT scaler, ");
|
|
else if (flags&SWS_AREA)
|
|
av_log(c, AV_LOG_INFO, "Area Averageing scaler, ");
|
|
else if (flags&SWS_BICUBLIN)
|
|
av_log(c, AV_LOG_INFO, "luma BICUBIC / chroma BILINEAR scaler, ");
|
|
else if (flags&SWS_GAUSS)
|
|
av_log(c, AV_LOG_INFO, "Gaussian scaler, ");
|
|
else if (flags&SWS_SINC)
|
|
av_log(c, AV_LOG_INFO, "Sinc scaler, ");
|
|
else if (flags&SWS_LANCZOS)
|
|
av_log(c, AV_LOG_INFO, "Lanczos scaler, ");
|
|
else if (flags&SWS_SPLINE)
|
|
av_log(c, AV_LOG_INFO, "Bicubic spline scaler, ");
|
|
else
|
|
av_log(c, AV_LOG_INFO, "ehh flags invalid?! ");
|
|
|
|
if (dstFormat==PIX_FMT_BGR555 || dstFormat==PIX_FMT_BGR565)
|
|
av_log(c, AV_LOG_INFO, "from %s to%s %s ",
|
|
sws_format_name(srcFormat), dither, sws_format_name(dstFormat));
|
|
else
|
|
av_log(c, AV_LOG_INFO, "from %s to %s ",
|
|
sws_format_name(srcFormat), sws_format_name(dstFormat));
|
|
|
|
if (flags & SWS_CPU_CAPS_MMX2)
|
|
av_log(c, AV_LOG_INFO, "using MMX2\n");
|
|
else if (flags & SWS_CPU_CAPS_3DNOW)
|
|
av_log(c, AV_LOG_INFO, "using 3DNOW\n");
|
|
else if (flags & SWS_CPU_CAPS_MMX)
|
|
av_log(c, AV_LOG_INFO, "using MMX\n");
|
|
else if (flags & SWS_CPU_CAPS_ALTIVEC)
|
|
av_log(c, AV_LOG_INFO, "using AltiVec\n");
|
|
else
|
|
av_log(c, AV_LOG_INFO, "using C\n");
|
|
}
|
|
|
|
if (flags & SWS_PRINT_INFO)
|
|
{
|
|
if (flags & SWS_CPU_CAPS_MMX)
|
|
{
|
|
if (c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
|
|
av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
|
|
else
|
|
{
|
|
if (c->hLumFilterSize==4)
|
|
av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal luminance scaling\n");
|
|
else if (c->hLumFilterSize==8)
|
|
av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal luminance scaling\n");
|
|
else
|
|
av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal luminance scaling\n");
|
|
|
|
if (c->hChrFilterSize==4)
|
|
av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal chrominance scaling\n");
|
|
else if (c->hChrFilterSize==8)
|
|
av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal chrominance scaling\n");
|
|
else
|
|
av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal chrominance scaling\n");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#if defined(ARCH_X86)
|
|
av_log(c, AV_LOG_VERBOSE, "using X86-Asm scaler for horizontal scaling\n");
|
|
#else
|
|
if (flags & SWS_FAST_BILINEAR)
|
|
av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR C scaler for horizontal scaling\n");
|
|
else
|
|
av_log(c, AV_LOG_VERBOSE, "using C scaler for horizontal scaling\n");
|
|
#endif
|
|
}
|
|
if (isPlanarYUV(dstFormat))
|
|
{
|
|
if (c->vLumFilterSize==1)
|
|
av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
|
|
else
|
|
av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
|
|
}
|
|
else
|
|
{
|
|
if (c->vLumFilterSize==1 && c->vChrFilterSize==2)
|
|
av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
|
|
" 2-tap scaler for vertical chrominance scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
|
|
else if (c->vLumFilterSize==2 && c->vChrFilterSize==2)
|
|
av_log(c, AV_LOG_VERBOSE, "using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
|
|
else
|
|
av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
|
|
}
|
|
|
|
if (dstFormat==PIX_FMT_BGR24)
|
|
av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR24 Converter\n",
|
|
(flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"));
|
|
else if (dstFormat==PIX_FMT_RGB32)
|
|
av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR32 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
|
|
else if (dstFormat==PIX_FMT_BGR565)
|
|
av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR16 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
|
|
else if (dstFormat==PIX_FMT_BGR555)
|
|
av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR15 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
|
|
|
|
av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
|
|
}
|
|
if (flags & SWS_PRINT_INFO)
|
|
{
|
|
av_log(c, AV_LOG_DEBUG, "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);
|
|
av_log(c, AV_LOG_DEBUG, "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= getSwsFunc(flags);
|
|
return c;
|
|
}
|
|
|
|
/**
|
|
* swscale wrapper, so we don't need to export the SwsContext.
|
|
* assumes planar YUV to be in YUV order instead of YVU
|
|
*/
|
|
int sws_scale(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
int i;
|
|
uint8_t* src2[4]= {src[0], src[1], src[2]};
|
|
uint32_t pal[256];
|
|
int use_pal= c->srcFormat == PIX_FMT_PAL8
|
|
|| c->srcFormat == PIX_FMT_BGR4_BYTE
|
|
|| c->srcFormat == PIX_FMT_RGB4_BYTE
|
|
|| c->srcFormat == PIX_FMT_BGR8
|
|
|| c->srcFormat == PIX_FMT_RGB8;
|
|
|
|
if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
|
|
av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");
|
|
return 0;
|
|
}
|
|
if (c->sliceDir == 0) {
|
|
if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
|
|
}
|
|
|
|
if (use_pal){
|
|
for (i=0; i<256; i++){
|
|
int p, r, g, b,y,u,v;
|
|
if(c->srcFormat == PIX_FMT_PAL8){
|
|
p=((uint32_t*)(src[1]))[i];
|
|
r= (p>>16)&0xFF;
|
|
g= (p>> 8)&0xFF;
|
|
b= p &0xFF;
|
|
}else if(c->srcFormat == PIX_FMT_RGB8){
|
|
r= (i>>5 )*36;
|
|
g= ((i>>2)&7)*36;
|
|
b= (i&3 )*85;
|
|
}else if(c->srcFormat == PIX_FMT_BGR8){
|
|
b= (i>>6 )*85;
|
|
g= ((i>>3)&7)*36;
|
|
r= (i&7 )*36;
|
|
}else if(c->srcFormat == PIX_FMT_RGB4_BYTE){
|
|
r= (i>>3 )*255;
|
|
g= ((i>>1)&3)*85;
|
|
b= (i&1 )*255;
|
|
}else if(c->srcFormat == PIX_FMT_BGR4_BYTE){
|
|
b= (i>>3 )*255;
|
|
g= ((i>>1)&3)*85;
|
|
r= (i&1 )*255;
|
|
}
|
|
y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
|
|
u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
|
|
v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
|
|
pal[i]= y + (u<<8) + (v<<16);
|
|
}
|
|
src2[1]= (uint8_t*)pal;
|
|
}
|
|
|
|
// copy strides, so they can safely be modified
|
|
if (c->sliceDir == 1) {
|
|
// slices go from top to bottom
|
|
int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2]};
|
|
int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2]};
|
|
return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst, dstStride2);
|
|
} else {
|
|
// slices go from bottom to top => we flip the image internally
|
|
uint8_t* dst2[4]= {dst[0] + (c->dstH-1)*dstStride[0],
|
|
dst[1] + ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1],
|
|
dst[2] + ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2]};
|
|
int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2]};
|
|
int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2]};
|
|
|
|
src2[0] += (srcSliceH-1)*srcStride[0];
|
|
if (!use_pal)
|
|
src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
|
|
src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
|
|
|
|
return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* swscale wrapper, so we don't need to export the SwsContext
|
|
*/
|
|
int sws_scale_ordered(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
|
|
}
|
|
|
|
SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
|
|
float lumaSharpen, float chromaSharpen,
|
|
float chromaHShift, float chromaVShift,
|
|
int verbose)
|
|
{
|
|
SwsFilter *filter= av_malloc(sizeof(SwsFilter));
|
|
|
|
if (lumaGBlur!=0.0){
|
|
filter->lumH= sws_getGaussianVec(lumaGBlur, 3.0);
|
|
filter->lumV= sws_getGaussianVec(lumaGBlur, 3.0);
|
|
}else{
|
|
filter->lumH= sws_getIdentityVec();
|
|
filter->lumV= sws_getIdentityVec();
|
|
}
|
|
|
|
if (chromaGBlur!=0.0){
|
|
filter->chrH= sws_getGaussianVec(chromaGBlur, 3.0);
|
|
filter->chrV= sws_getGaussianVec(chromaGBlur, 3.0);
|
|
}else{
|
|
filter->chrH= sws_getIdentityVec();
|
|
filter->chrV= sws_getIdentityVec();
|
|
}
|
|
|
|
if (chromaSharpen!=0.0){
|
|
SwsVector *id= sws_getIdentityVec();
|
|
sws_scaleVec(filter->chrH, -chromaSharpen);
|
|
sws_scaleVec(filter->chrV, -chromaSharpen);
|
|
sws_addVec(filter->chrH, id);
|
|
sws_addVec(filter->chrV, id);
|
|
sws_freeVec(id);
|
|
}
|
|
|
|
if (lumaSharpen!=0.0){
|
|
SwsVector *id= sws_getIdentityVec();
|
|
sws_scaleVec(filter->lumH, -lumaSharpen);
|
|
sws_scaleVec(filter->lumV, -lumaSharpen);
|
|
sws_addVec(filter->lumH, id);
|
|
sws_addVec(filter->lumV, id);
|
|
sws_freeVec(id);
|
|
}
|
|
|
|
if (chromaHShift != 0.0)
|
|
sws_shiftVec(filter->chrH, (int)(chromaHShift+0.5));
|
|
|
|
if (chromaVShift != 0.0)
|
|
sws_shiftVec(filter->chrV, (int)(chromaVShift+0.5));
|
|
|
|
sws_normalizeVec(filter->chrH, 1.0);
|
|
sws_normalizeVec(filter->chrV, 1.0);
|
|
sws_normalizeVec(filter->lumH, 1.0);
|
|
sws_normalizeVec(filter->lumV, 1.0);
|
|
|
|
if (verbose) sws_printVec(filter->chrH);
|
|
if (verbose) sws_printVec(filter->lumH);
|
|
|
|
return filter;
|
|
}
|
|
|
|
/**
|
|
* returns a normalized gaussian curve used to filter stuff
|
|
* quality=3 is high quality, lowwer is lowwer quality
|
|
*/
|
|
SwsVector *sws_getGaussianVec(double variance, double quality){
|
|
const int length= (int)(variance*quality + 0.5) | 1;
|
|
int i;
|
|
double *coeff= av_malloc(length*sizeof(double));
|
|
double middle= (length-1)*0.5;
|
|
SwsVector *vec= av_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);
|
|
}
|
|
|
|
sws_normalizeVec(vec, 1.0);
|
|
|
|
return vec;
|
|
}
|
|
|
|
SwsVector *sws_getConstVec(double c, int length){
|
|
int i;
|
|
double *coeff= av_malloc(length*sizeof(double));
|
|
SwsVector *vec= av_malloc(sizeof(SwsVector));
|
|
|
|
vec->coeff= coeff;
|
|
vec->length= length;
|
|
|
|
for (i=0; i<length; i++)
|
|
coeff[i]= c;
|
|
|
|
return vec;
|
|
}
|
|
|
|
|
|
SwsVector *sws_getIdentityVec(void){
|
|
return sws_getConstVec(1.0, 1);
|
|
}
|
|
|
|
double sws_dcVec(SwsVector *a){
|
|
int i;
|
|
double sum=0;
|
|
|
|
for (i=0; i<a->length; i++)
|
|
sum+= a->coeff[i];
|
|
|
|
return sum;
|
|
}
|
|
|
|
void sws_scaleVec(SwsVector *a, double scalar){
|
|
int i;
|
|
|
|
for (i=0; i<a->length; i++)
|
|
a->coeff[i]*= scalar;
|
|
}
|
|
|
|
void sws_normalizeVec(SwsVector *a, double height){
|
|
sws_scaleVec(a, height/sws_dcVec(a));
|
|
}
|
|
|
|
static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b){
|
|
int length= a->length + b->length - 1;
|
|
double *coeff= av_malloc(length*sizeof(double));
|
|
int i, j;
|
|
SwsVector *vec= av_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 *sws_sumVec(SwsVector *a, SwsVector *b){
|
|
int length= FFMAX(a->length, b->length);
|
|
double *coeff= av_malloc(length*sizeof(double));
|
|
int i;
|
|
SwsVector *vec= av_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 *sws_diffVec(SwsVector *a, SwsVector *b){
|
|
int length= FFMAX(a->length, b->length);
|
|
double *coeff= av_malloc(length*sizeof(double));
|
|
int i;
|
|
SwsVector *vec= av_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 *sws_getShiftedVec(SwsVector *a, int shift){
|
|
int length= a->length + FFABS(shift)*2;
|
|
double *coeff= av_malloc(length*sizeof(double));
|
|
int i;
|
|
SwsVector *vec= av_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 sws_shiftVec(SwsVector *a, int shift){
|
|
SwsVector *shifted= sws_getShiftedVec(a, shift);
|
|
av_free(a->coeff);
|
|
a->coeff= shifted->coeff;
|
|
a->length= shifted->length;
|
|
av_free(shifted);
|
|
}
|
|
|
|
void sws_addVec(SwsVector *a, SwsVector *b){
|
|
SwsVector *sum= sws_sumVec(a, b);
|
|
av_free(a->coeff);
|
|
a->coeff= sum->coeff;
|
|
a->length= sum->length;
|
|
av_free(sum);
|
|
}
|
|
|
|
void sws_subVec(SwsVector *a, SwsVector *b){
|
|
SwsVector *diff= sws_diffVec(a, b);
|
|
av_free(a->coeff);
|
|
a->coeff= diff->coeff;
|
|
a->length= diff->length;
|
|
av_free(diff);
|
|
}
|
|
|
|
void sws_convVec(SwsVector *a, SwsVector *b){
|
|
SwsVector *conv= sws_getConvVec(a, b);
|
|
av_free(a->coeff);
|
|
a->coeff= conv->coeff;
|
|
a->length= conv->length;
|
|
av_free(conv);
|
|
}
|
|
|
|
SwsVector *sws_cloneVec(SwsVector *a){
|
|
double *coeff= av_malloc(a->length*sizeof(double));
|
|
int i;
|
|
SwsVector *vec= av_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 sws_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);
|
|
av_log(NULL, AV_LOG_DEBUG, "%1.3f ", a->coeff[i]);
|
|
for (;x>0; x--) av_log(NULL, AV_LOG_DEBUG, " ");
|
|
av_log(NULL, AV_LOG_DEBUG, "|\n");
|
|
}
|
|
}
|
|
|
|
void sws_freeVec(SwsVector *a){
|
|
if (!a) return;
|
|
av_freep(&a->coeff);
|
|
a->length=0;
|
|
av_free(a);
|
|
}
|
|
|
|
void sws_freeFilter(SwsFilter *filter){
|
|
if (!filter) return;
|
|
|
|
if (filter->lumH) sws_freeVec(filter->lumH);
|
|
if (filter->lumV) sws_freeVec(filter->lumV);
|
|
if (filter->chrH) sws_freeVec(filter->chrH);
|
|
if (filter->chrV) sws_freeVec(filter->chrV);
|
|
av_free(filter);
|
|
}
|
|
|
|
|
|
void sws_freeContext(SwsContext *c){
|
|
int i;
|
|
if (!c) return;
|
|
|
|
if (c->lumPixBuf)
|
|
{
|
|
for (i=0; i<c->vLumBufSize; i++)
|
|
av_freep(&c->lumPixBuf[i]);
|
|
av_freep(&c->lumPixBuf);
|
|
}
|
|
|
|
if (c->chrPixBuf)
|
|
{
|
|
for (i=0; i<c->vChrBufSize; i++)
|
|
av_freep(&c->chrPixBuf[i]);
|
|
av_freep(&c->chrPixBuf);
|
|
}
|
|
|
|
av_freep(&c->vLumFilter);
|
|
av_freep(&c->vChrFilter);
|
|
av_freep(&c->hLumFilter);
|
|
av_freep(&c->hChrFilter);
|
|
#ifdef HAVE_ALTIVEC
|
|
av_freep(&c->vYCoeffsBank);
|
|
av_freep(&c->vCCoeffsBank);
|
|
#endif
|
|
|
|
av_freep(&c->vLumFilterPos);
|
|
av_freep(&c->vChrFilterPos);
|
|
av_freep(&c->hLumFilterPos);
|
|
av_freep(&c->hChrFilterPos);
|
|
|
|
#if defined(ARCH_X86) && defined(CONFIG_GPL)
|
|
#ifdef MAP_ANONYMOUS
|
|
if (c->funnyYCode) munmap(c->funnyYCode, MAX_FUNNY_CODE_SIZE);
|
|
if (c->funnyUVCode) munmap(c->funnyUVCode, MAX_FUNNY_CODE_SIZE);
|
|
#else
|
|
av_free(c->funnyYCode);
|
|
av_free(c->funnyUVCode);
|
|
#endif
|
|
c->funnyYCode=NULL;
|
|
c->funnyUVCode=NULL;
|
|
#endif /* defined(ARCH_X86) */
|
|
|
|
av_freep(&c->lumMmx2Filter);
|
|
av_freep(&c->chrMmx2Filter);
|
|
av_freep(&c->lumMmx2FilterPos);
|
|
av_freep(&c->chrMmx2FilterPos);
|
|
av_freep(&c->yuvTable);
|
|
|
|
av_free(c);
|
|
}
|
|
|
|
/**
|
|
* Checks if context is valid or reallocs a new one instead.
|
|
* If context is NULL, just calls sws_getContext() to get a new one.
|
|
* Otherwise, checks if the parameters are the same already saved in context.
|
|
* If that is the case, returns the current context.
|
|
* Otherwise, frees context and gets a new one.
|
|
*
|
|
* Be warned that srcFilter, dstFilter are not checked, they are
|
|
* asumed to remain valid.
|
|
*/
|
|
struct SwsContext *sws_getCachedContext(struct SwsContext *context,
|
|
int srcW, int srcH, int srcFormat,
|
|
int dstW, int dstH, int dstFormat, int flags,
|
|
SwsFilter *srcFilter, SwsFilter *dstFilter, double *param)
|
|
{
|
|
static const double default_param[2] = {SWS_PARAM_DEFAULT, SWS_PARAM_DEFAULT};
|
|
|
|
if (!param)
|
|
param = default_param;
|
|
|
|
if (context) {
|
|
if (context->srcW != srcW || context->srcH != srcH ||
|
|
context->srcFormat != srcFormat ||
|
|
context->dstW != dstW || context->dstH != dstH ||
|
|
context->dstFormat != dstFormat || context->flags != flags ||
|
|
context->param[0] != param[0] || context->param[1] != param[1])
|
|
{
|
|
sws_freeContext(context);
|
|
context = NULL;
|
|
}
|
|
}
|
|
if (!context) {
|
|
return sws_getContext(srcW, srcH, srcFormat,
|
|
dstW, dstH, dstFormat, flags,
|
|
srcFilter, dstFilter, param);
|
|
}
|
|
return context;
|
|
}
|
|
|