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Diffstat (limited to 'contrib/ffmpeg/libswscale/swscale.c')
-rw-r--r--contrib/ffmpeg/libswscale/swscale.c2868
1 files changed, 0 insertions, 2868 deletions
diff --git a/contrib/ffmpeg/libswscale/swscale.c b/contrib/ffmpeg/libswscale/swscale.c
deleted file mode 100644
index f6a23425b..000000000
--- a/contrib/ffmpeg/libswscale/swscale.c
+++ /dev/null
@@ -1,2868 +0,0 @@
-/*
- * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * the C code (not assembly, mmx, ...) of this file can be used
- * under the LGPL license too
- */
-
-/*
- supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8/Y800, YVU9/IF09, PAL8
- supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
- {BGR,RGB}{1,4,8,15,16} support dithering
-
- unscaled special converters (YV12=I420=IYUV, Y800=Y8)
- YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
- x -> x
- YUV9 -> YV12
- YUV9/YV12 -> Y800
- Y800 -> YUV9/YV12
- BGR24 -> BGR32 & RGB24 -> RGB32
- BGR32 -> BGR24 & RGB32 -> RGB24
- BGR15 -> BGR16
-*/
-
-/*
-tested special converters (most are tested actually but i didnt write it down ...)
- YV12 -> BGR16
- YV12 -> YV12
- BGR15 -> BGR16
- BGR16 -> BGR16
- YVU9 -> YV12
-
-untested special converters
- YV12/I420 -> BGR15/BGR24/BGR32 (its the yuv2rgb stuff, so it should be ok)
- YV12/I420 -> YV12/I420
- YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
- BGR24 -> BGR32 & RGB24 -> RGB32
- BGR32 -> BGR24 & RGB32 -> RGB24
- BGR24 -> YV12
-*/
-
-#include <inttypes.h>
-#include <string.h>
-#include <math.h>
-#include <stdio.h>
-#include <unistd.h>
-#include "config.h"
-#include <assert.h>
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-#endif
-#include "swscale.h"
-#include "swscale_internal.h"
-#include "x86_cpu.h"
-#include "bswap.h"
-#include "rgb2rgb.h"
-#ifdef USE_FASTMEMCPY
-#include "libvo/fastmemcpy.h"
-#endif
-
-#undef MOVNTQ
-#undef PAVGB
-
-//#undef HAVE_MMX2
-//#define HAVE_3DNOW
-//#undef HAVE_MMX
-//#undef ARCH_X86
-//#define WORDS_BIGENDIAN
-#define DITHER1XBPP
-
-#define FAST_BGR2YV12 // use 7 bit coeffs instead of 15bit
-
-#define RET 0xC3 //near return opcode for X86
-
-#ifdef MP_DEBUG
-#define ASSERT(x) assert(x);
-#else
-#define ASSERT(x) ;
-#endif
-
-#ifdef M_PI
-#define PI M_PI
-#else
-#define PI 3.14159265358979323846
-#endif
-
-#define isSupportedIn(x) ((x)==PIX_FMT_YUV420P || (x)==PIX_FMT_YUYV422 || (x)==PIX_FMT_UYVY422\
- || (x)==PIX_FMT_RGB32|| (x)==PIX_FMT_BGR24|| (x)==PIX_FMT_BGR565|| (x)==PIX_FMT_BGR555\
- || (x)==PIX_FMT_BGR32|| (x)==PIX_FMT_RGB24|| (x)==PIX_FMT_RGB565|| (x)==PIX_FMT_RGB555\
- || (x)==PIX_FMT_GRAY8 || (x)==PIX_FMT_YUV410P\
- || (x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE\
- || (x)==PIX_FMT_YUV444P || (x)==PIX_FMT_YUV422P || (x)==PIX_FMT_YUV411P\
- || (x)==PIX_FMT_PAL8 || (x)==PIX_FMT_BGR8 || (x)==PIX_FMT_RGB8\
- || (x)==PIX_FMT_BGR4_BYTE || (x)==PIX_FMT_RGB4_BYTE)
-#define isSupportedOut(x) ((x)==PIX_FMT_YUV420P || (x)==PIX_FMT_YUYV422 || (x)==PIX_FMT_UYVY422\
- || (x)==PIX_FMT_YUV444P || (x)==PIX_FMT_YUV422P || (x)==PIX_FMT_YUV411P\
- || isRGB(x) || isBGR(x)\
- || (x)==PIX_FMT_NV12 || (x)==PIX_FMT_NV21\
- || (x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE\
- || (x)==PIX_FMT_GRAY8 || (x)==PIX_FMT_YUV410P)
-#define isPacked(x) ((x)==PIX_FMT_PAL8 || (x)==PIX_FMT_YUYV422 ||\
- (x)==PIX_FMT_UYVY422 || isRGB(x) || isBGR(x))
-
-#define RGB2YUV_SHIFT 16
-#define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
-#define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
-#define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
-#define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
-#define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
-#define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
-#define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
-#define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
-#define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
-
-extern const int32_t Inverse_Table_6_9[8][4];
-
-/*
-NOTES
-Special versions: fast Y 1:1 scaling (no interpolation in y direction)
-
-TODO
-more intelligent missalignment avoidance for the horizontal scaler
-write special vertical cubic upscale version
-Optimize C code (yv12 / minmax)
-add support for packed pixel yuv input & output
-add support for Y8 output
-optimize bgr24 & bgr32
-add BGR4 output support
-write special BGR->BGR scaler
-*/
-
-#if defined(ARCH_X86) && defined (CONFIG_GPL)
-static uint64_t attribute_used __attribute__((aligned(8))) bF8= 0xF8F8F8F8F8F8F8F8LL;
-static uint64_t attribute_used __attribute__((aligned(8))) bFC= 0xFCFCFCFCFCFCFCFCLL;
-static uint64_t __attribute__((aligned(8))) w10= 0x0010001000100010LL;
-static uint64_t attribute_used __attribute__((aligned(8))) w02= 0x0002000200020002LL;
-static uint64_t attribute_used __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
-static uint64_t attribute_used __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
-static uint64_t attribute_used __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
-static uint64_t attribute_used __attribute__((aligned(8))) bm01010101=0x00FF00FF00FF00FFLL;
-
-static volatile uint64_t attribute_used __attribute__((aligned(8))) b5Dither;
-static volatile uint64_t attribute_used __attribute__((aligned(8))) g5Dither;
-static volatile uint64_t attribute_used __attribute__((aligned(8))) g6Dither;
-static volatile uint64_t attribute_used __attribute__((aligned(8))) r5Dither;
-
-static uint64_t __attribute__((aligned(8))) dither4[2]={
- 0x0103010301030103LL,
- 0x0200020002000200LL,};
-
-static uint64_t __attribute__((aligned(8))) dither8[2]={
- 0x0602060206020602LL,
- 0x0004000400040004LL,};
-
-static uint64_t __attribute__((aligned(8))) b16Mask= 0x001F001F001F001FLL;
-static uint64_t attribute_used __attribute__((aligned(8))) g16Mask= 0x07E007E007E007E0LL;
-static uint64_t attribute_used __attribute__((aligned(8))) r16Mask= 0xF800F800F800F800LL;
-static uint64_t __attribute__((aligned(8))) b15Mask= 0x001F001F001F001FLL;
-static uint64_t attribute_used __attribute__((aligned(8))) g15Mask= 0x03E003E003E003E0LL;
-static uint64_t attribute_used __attribute__((aligned(8))) r15Mask= 0x7C007C007C007C00LL;
-
-static uint64_t attribute_used __attribute__((aligned(8))) M24A= 0x00FF0000FF0000FFLL;
-static uint64_t attribute_used __attribute__((aligned(8))) M24B= 0xFF0000FF0000FF00LL;
-static uint64_t attribute_used __attribute__((aligned(8))) M24C= 0x0000FF0000FF0000LL;
-
-#ifdef FAST_BGR2YV12
-static const uint64_t bgr2YCoeff attribute_used __attribute__((aligned(8))) = 0x000000210041000DULL;
-static const uint64_t bgr2UCoeff attribute_used __attribute__((aligned(8))) = 0x0000FFEEFFDC0038ULL;
-static const uint64_t bgr2VCoeff attribute_used __attribute__((aligned(8))) = 0x00000038FFD2FFF8ULL;
-#else
-static const uint64_t bgr2YCoeff attribute_used __attribute__((aligned(8))) = 0x000020E540830C8BULL;
-static const uint64_t bgr2UCoeff attribute_used __attribute__((aligned(8))) = 0x0000ED0FDAC23831ULL;
-static const uint64_t bgr2VCoeff attribute_used __attribute__((aligned(8))) = 0x00003831D0E6F6EAULL;
-#endif /* FAST_BGR2YV12 */
-static const uint64_t bgr2YOffset attribute_used __attribute__((aligned(8))) = 0x1010101010101010ULL;
-static const uint64_t bgr2UVOffset attribute_used __attribute__((aligned(8)))= 0x8080808080808080ULL;
-static const uint64_t w1111 attribute_used __attribute__((aligned(8))) = 0x0001000100010001ULL;
-#endif /* defined(ARCH_X86) */
-
-// clipping helper table for C implementations:
-static unsigned char clip_table[768];
-
-static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
-
-extern const uint8_t dither_2x2_4[2][8];
-extern const uint8_t dither_2x2_8[2][8];
-extern const uint8_t dither_8x8_32[8][8];
-extern const uint8_t dither_8x8_73[8][8];
-extern const uint8_t dither_8x8_220[8][8];
-
-static const char * sws_context_to_name(void * ptr) {
- return "swscaler";
-}
-
-static AVClass sws_context_class = { "SWScaler", sws_context_to_name, NULL };
-
-char *sws_format_name(enum PixelFormat format)
-{
- switch (format) {
- case PIX_FMT_YUV420P:
- return "yuv420p";
- case PIX_FMT_YUYV422:
- return "yuyv422";
- case PIX_FMT_RGB24:
- return "rgb24";
- case PIX_FMT_BGR24:
- return "bgr24";
- case PIX_FMT_YUV422P:
- return "yuv422p";
- case PIX_FMT_YUV444P:
- return "yuv444p";
- case PIX_FMT_RGB32:
- return "rgb32";
- case PIX_FMT_YUV410P:
- return "yuv410p";
- case PIX_FMT_YUV411P:
- return "yuv411p";
- case PIX_FMT_RGB565:
- return "rgb565";
- case PIX_FMT_RGB555:
- return "rgb555";
- case PIX_FMT_GRAY16BE:
- return "gray16be";
- case PIX_FMT_GRAY16LE:
- return "gray16le";
- case PIX_FMT_GRAY8:
- return "gray8";
- case PIX_FMT_MONOWHITE:
- return "mono white";
- case PIX_FMT_MONOBLACK:
- return "mono black";
- case PIX_FMT_PAL8:
- return "Palette";
- case PIX_FMT_YUVJ420P:
- return "yuvj420p";
- case PIX_FMT_YUVJ422P:
- return "yuvj422p";
- case PIX_FMT_YUVJ444P:
- return "yuvj444p";
- case PIX_FMT_XVMC_MPEG2_MC:
- return "xvmc_mpeg2_mc";
- case PIX_FMT_XVMC_MPEG2_IDCT:
- return "xvmc_mpeg2_idct";
- case PIX_FMT_UYVY422:
- return "uyvy422";
- case PIX_FMT_UYYVYY411:
- return "uyyvyy411";
- case PIX_FMT_RGB32_1:
- return "rgb32x";
- case PIX_FMT_BGR32_1:
- return "bgr32x";
- case PIX_FMT_BGR32:
- return "bgr32";
- case PIX_FMT_BGR565:
- return "bgr565";
- case PIX_FMT_BGR555:
- return "bgr555";
- case PIX_FMT_BGR8:
- return "bgr8";
- case PIX_FMT_BGR4:
- return "bgr4";
- case PIX_FMT_BGR4_BYTE:
- return "bgr4 byte";
- case PIX_FMT_RGB8:
- return "rgb8";
- case PIX_FMT_RGB4:
- return "rgb4";
- case PIX_FMT_RGB4_BYTE:
- return "rgb4 byte";
- case PIX_FMT_NV12:
- return "nv12";
- case PIX_FMT_NV21:
- return "nv21";
- default:
- return "Unknown format";
- }
-}
-
-#if defined(ARCH_X86) && defined (CONFIG_GPL)
-void in_asm_used_var_warning_killer()
-{
- volatile int i= bF8+bFC+w10+
- bm00001111+bm00000111+bm11111000+b16Mask+g16Mask+r16Mask+b15Mask+g15Mask+r15Mask+
- M24A+M24B+M24C+w02 + b5Dither+g5Dither+r5Dither+g6Dither+dither4[0]+dither8[0]+bm01010101;
- if(i) i=0;
-}
-#endif
-
-static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
- int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
- uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW)
-{
- //FIXME Optimize (just quickly writen not opti..)
- 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 != NULL)
- 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 + 2048] * chrFilter[j];
- }
-
- uDest[i]= av_clip_uint8(u>>19);
- vDest[i]= av_clip_uint8(v>>19);
- }
-}
-
-static inline void yuv2nv12XinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
- int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
- uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
-{
- //FIXME Optimize (just quickly writen not opti..)
- 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 == NULL)
- 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 + 2048] * 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 + 2048] * 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 attribute_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+2048] * 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_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+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19;\
-
-#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+2048])>>7;\
-
-#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+2048] + uvbuf1[i+2048])>>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)\
- switch(c->dstFormat)\
- {\
- case PIX_FMT_RGB32:\
- case PIX_FMT_BGR32:\
- 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;\
- }\
-
-
-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:
- 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;
- }
-}
-
-
-//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 ARCH_POWERPC
-#ifdef COMPILE_ALTIVEC
-#undef RENAME
-#define HAVE_ALTIVEC
-#define RENAME(a) a ## _altivec
-#include "swscale_template.c"
-#endif
-#endif //ARCH_POWERPC
-
-#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;
-#if defined(ARCH_X86)
- if(flags & SWS_CPU_CAPS_MMX)
- asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
-#endif
-
- // Note the +1 is for the MMXscaler which reads over the end
- *filterPos = 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_free(filter); filter=NULL;
-
- /* try to reduce the filter-size (step1 find size and shift left) */
- // Assume its near normalized (*0.5 or *2.0 is ok but * 0.001 is not)
- minFilterSize= 0;
- for(i=dstW-1; i>=0; i--)
- {
- int min= filter2Size;
- int j;
- double cutOff=0.0;
-
- /* get rid off near zero elements on the left by shifting left */
- for(j=0; j<filter2Size; j++)
- {
- int k;
- cutOff += 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)
- return -1;
- *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];
- }
- }
- av_free(filter2); filter2=NULL;
-
-
- //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)];
- }
-
- av_free(filter);
- return 0;
-}
-
-#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 0b, %0 \n\t"
- "lea 1b, %1 \n\t"
- "lea 2b, %2 \n\t"
- "dec %1 \n\t"
- "dec %2 \n\t"
- "sub %0, %1 \n\t"
- "sub %0, %2 \n\t"
- "lea 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 0b, %0 \n\t"
- "lea 1b, %1 \n\t"
- "lea 2b, %2 \n\t"
- "dec %1 \n\t"
- "dec %2 \n\t"
- "sub %0, %1 \n\t"
- "sub %0, %2 \n\t"
- "lea 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 fasterst 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;
-}
-
-/* {RGB,BGR}{15,16,24,32} -> {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, "swScaler: 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, "swScaler: internal error %s -> %s converter\n",
- sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
- }
- }else{
- av_log(c, AV_LOG_ERROR, "swScaler: internal error %s -> %s converter\n",
- sws_format_name(srcFormat), sws_format_name(dstFormat));
- }
-
- if(dstStride[0]*srcBpp == srcStride[0]*dstBpp)
- conv(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
- else
- {
- int i;
- uint8_t *srcPtr= src[0];
- 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 simpleCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], int dstStride[]){
-
- if(isPacked(c->srcFormat))
- {
- 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];
- }
- }
- }
- else
- { /* Planar YUV or gray */
- 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= src[0];
- uint16_t *dstPtr= 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_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_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 its 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;
-
- if(isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
- 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;
-
- 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;
- 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);
-#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;
-#endif
-#endif /* RUNTIME_CPUDETECT */
- if(clip_table[512] != 255) globalInit();
- if(rgb15to16 == NULL) 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 format\n", sws_format_name(srcFormat));
- return NULL;
- }
- if(!isSupportedOut(dstFormat))
- {
- av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as output format\n", sws_format_name(dstFormat));
- return NULL;
- }
-
- /* sanity check */
- if(srcW<4 || srcH<1 || dstW<8 || dstH<1) //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code
- {
- av_log(NULL, AV_LOG_ERROR, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
- srcW, srcH, dstW, dstH);
- return NULL;
- }
-
- if(!dstFilter) dstFilter= &dummyFilter;
- if(!srcFilter) srcFilter= &dummyFilter;
-
- c= 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!=NULL && dstFilter->lumV->length>1) usesVFilter=1;
- if(dstFilter->lumH!=NULL && dstFilter->lumH->length>1) usesHFilter=1;
- if(dstFilter->chrV!=NULL && dstFilter->chrV->length>1) usesVFilter=1;
- if(dstFilter->chrH!=NULL && dstFilter->chrH->length>1) usesHFilter=1;
- if(srcFilter->lumV!=NULL && srcFilter->lumV->length>1) usesVFilter=1;
- if(srcFilter->lumH!=NULL && srcFilter->lumH->length>1) usesHFilter=1;
- if(srcFilter->chrV!=NULL && srcFilter->chrV->length>1) usesVFilter=1;
- if(srcFilter->chrH!=NULL && 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))
- 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 allways 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)
- {
- /* 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))
- && !needsDither)
- c->swScale= rgb2rgbWrapper;
-
- /* LQ converters if -sws 0 or -sws 4*/
- if(c->flags&(SWS_FAST_BILINEAR|SWS_POINT)){
- /* rgb/bgr -> rgb/bgr (dither needed forms) */
- if( (isBGR(srcFormat) || isRGB(srcFormat))
- && (isBGR(dstFormat) || isRGB(dstFormat))
- && needsDither)
- c->swScale= rgb2rgbWrapper;
-
- /* yv12_to_yuy2 */
- if(srcFormat == PIX_FMT_YUV420P &&
- (dstFormat == PIX_FMT_YUYV422 || dstFormat == PIX_FMT_UYVY422))
- {
- if (dstFormat == PIX_FMT_YUYV422)
- c->swScale= PlanarToYuy2Wrapper;
- else
- c->swScale= PlanarToUyvyWrapper;
- }
- }
-
-#ifdef COMPILE_ALTIVEC
- if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
- ((srcFormat == PIX_FMT_YUV420P &&
- (dstFormat == PIX_FMT_YUYV422 || dstFormat == PIX_FMT_UYVY422)))) {
- // unscaled YV12 -> packed YUV, we want speed
- if (dstFormat == PIX_FMT_YUYV422)
- c->swScale= yv12toyuy2_unscaled_altivec;
- else
- c->swScale= yv12touyvy_unscaled_altivec;
- }
-#endif
-
- /* simple copy */
- if( srcFormat == dstFormat
- || (isPlanarYUV(srcFormat) && isGray(dstFormat))
- || (isPlanarYUV(dstFormat) && isGray(srcFormat))
- )
- {
- c->swScale= simpleCopy;
- }
-
- /* 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;
- }
-
- if(c->swScale){
- if(flags&SWS_PRINT_INFO)
- av_log(c, AV_LOG_INFO, "SwScaler: 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, "SwScaler: 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 noone shuld notice the difference, the more correct variant
- // would be like the vertical one, but that would require some special code for the
- // first and last pixel
- if(flags&SWS_FAST_BILINEAR)
- {
- if(c->canMMX2BeUsed)
- {
- c->lumXInc+= 20;
- c->chrXInc+= 20;
- }
- //we 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(4000);
- for(i=0; i<c->vChrBufSize; i++)
- c->chrPixBuf[i]= c->chrPixBuf[i+c->vChrBufSize]= av_malloc(8000);
-
- //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, 8000);
-
- ASSERT(c->chrDstH <= dstH)
-
- if(flags&SWS_PRINT_INFO)
- {
-#ifdef DITHER1XBPP
- char *dither= " dithered";
-#else
- char *dither= "";
-#endif
- if(flags&SWS_FAST_BILINEAR)
- av_log(c, AV_LOG_INFO, "SwScaler: FAST_BILINEAR scaler, ");
- else if(flags&SWS_BILINEAR)
- av_log(c, AV_LOG_INFO, "SwScaler: BILINEAR scaler, ");
- else if(flags&SWS_BICUBIC)
- av_log(c, AV_LOG_INFO, "SwScaler: BICUBIC scaler, ");
- else if(flags&SWS_X)
- av_log(c, AV_LOG_INFO, "SwScaler: Experimental scaler, ");
- else if(flags&SWS_POINT)
- av_log(c, AV_LOG_INFO, "SwScaler: Nearest Neighbor / POINT scaler, ");
- else if(flags&SWS_AREA)
- av_log(c, AV_LOG_INFO, "SwScaler: Area Averageing scaler, ");
- else if(flags&SWS_BICUBLIN)
- av_log(c, AV_LOG_INFO, "SwScaler: luma BICUBIC / chroma BILINEAR scaler, ");
- else if(flags&SWS_GAUSS)
- av_log(c, AV_LOG_INFO, "SwScaler: Gaussian scaler, ");
- else if(flags&SWS_SINC)
- av_log(c, AV_LOG_INFO, "SwScaler: Sinc scaler, ");
- else if(flags&SWS_LANCZOS)
- av_log(c, AV_LOG_INFO, "SwScaler: Lanczos scaler, ");
- else if(flags&SWS_SPLINE)
- av_log(c, AV_LOG_INFO, "SwScaler: Bicubic spline scaler, ");
- else
- av_log(c, AV_LOG_INFO, "SwScaler: 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, "SwScaler: using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
- else
- {
- if(c->hLumFilterSize==4)
- av_log(c, AV_LOG_VERBOSE, "SwScaler: using 4-tap MMX scaler for horizontal luminance scaling\n");
- else if(c->hLumFilterSize==8)
- av_log(c, AV_LOG_VERBOSE, "SwScaler: using 8-tap MMX scaler for horizontal luminance scaling\n");
- else
- av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap MMX scaler for horizontal luminance scaling\n");
-
- if(c->hChrFilterSize==4)
- av_log(c, AV_LOG_VERBOSE, "SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling\n");
- else if(c->hChrFilterSize==8)
- av_log(c, AV_LOG_VERBOSE, "SwScaler: using 8-tap MMX scaler for horizontal chrominance scaling\n");
- else
- av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap MMX scaler for horizontal chrominance scaling\n");
- }
- }
- else
- {
-#if defined(ARCH_X86)
- av_log(c, AV_LOG_VERBOSE, "SwScaler: using X86-Asm scaler for horizontal scaling\n");
-#else
- if(flags & SWS_FAST_BILINEAR)
- av_log(c, AV_LOG_VERBOSE, "SwScaler: using FAST_BILINEAR C scaler for horizontal scaling\n");
- else
- av_log(c, AV_LOG_VERBOSE, "SwScaler: using C scaler for horizontal scaling\n");
-#endif
- }
- if(isPlanarYUV(dstFormat))
- {
- if(c->vLumFilterSize==1)
- av_log(c, AV_LOG_VERBOSE, "SwScaler: 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, "SwScaler: 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, "SwScaler: using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
- "SwScaler: 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, "SwScaler: 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, "SwScaler: 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, "SwScaler: 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, "SwScaler: 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, "SwScaler: 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, "SwScaler: using %s YV12->BGR15 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-
- av_log(c, AV_LOG_VERBOSE, "SwScaler: %dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
- }
- if(flags & SWS_PRINT_INFO)
- {
- av_log(c, AV_LOG_DEBUG, "SwScaler:Lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
- c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
- av_log(c, AV_LOG_DEBUG, "SwScaler:Chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
- c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
- }
-
- c->swScale= getSwsFunc(flags);
- return c;
-}
-
-/**
- * swscale warper, 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[]){
- if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
- av_log(c, AV_LOG_ERROR, "swScaler: slices start in the middle!\n");
- return 0;
- }
- if (c->sliceDir == 0) {
- if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
- }
-
- // copy strides, so they can safely be modified
- if (c->sliceDir == 1) {
- uint8_t* src2[4]= {src[0], src[1], src[2]};
- // 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* src2[4]= {src[0] + (srcSliceH-1)*srcStride[0],
- src[1] + ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1],
- src[2] + ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2]
- };
- 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]};
-
- return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
- }
-}
-
-/**
- * swscale warper, 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_free(a->coeff);
- a->coeff=NULL;
- 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_free(c->lumPixBuf[i]);
- c->lumPixBuf[i]=NULL;
- }
- av_free(c->lumPixBuf);
- c->lumPixBuf=NULL;
- }
-
- if(c->chrPixBuf)
- {
- for(i=0; i<c->vChrBufSize; i++)
- {
- av_free(c->chrPixBuf[i]);
- c->chrPixBuf[i]=NULL;
- }
- av_free(c->chrPixBuf);
- c->chrPixBuf=NULL;
- }
-
- av_free(c->vLumFilter);
- c->vLumFilter = NULL;
- av_free(c->vChrFilter);
- c->vChrFilter = NULL;
- av_free(c->hLumFilter);
- c->hLumFilter = NULL;
- av_free(c->hChrFilter);
- c->hChrFilter = NULL;
-#ifdef HAVE_ALTIVEC
- av_free(c->vYCoeffsBank);
- c->vYCoeffsBank = NULL;
- av_free(c->vCCoeffsBank);
- c->vCCoeffsBank = NULL;
-#endif
-
- av_free(c->vLumFilterPos);
- c->vLumFilterPos = NULL;
- av_free(c->vChrFilterPos);
- c->vChrFilterPos = NULL;
- av_free(c->hLumFilterPos);
- c->hLumFilterPos = NULL;
- av_free(c->hChrFilterPos);
- c->hChrFilterPos = NULL;
-
-#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_free(c->lumMmx2Filter);
- c->lumMmx2Filter=NULL;
- av_free(c->chrMmx2Filter);
- c->chrMmx2Filter=NULL;
- av_free(c->lumMmx2FilterPos);
- c->lumMmx2FilterPos=NULL;
- av_free(c->chrMmx2FilterPos);
- c->chrMmx2FilterPos=NULL;
- av_free(c->yuvTable);
- c->yuvTable=NULL;
-
- 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)
-{
- if (context != NULL) {
- if ((context->srcW != srcW) || (context->srcH != srcH) ||
- (context->srcFormat != srcFormat) ||
- (context->dstW != dstW) || (context->dstH != dstH) ||
- (context->dstFormat != dstFormat) || (context->flags != flags) ||
- (context->param != param))
- {
- sws_freeContext(context);
- context = NULL;
- }
- }
- if (context == NULL) {
- return sws_getContext(srcW, srcH, srcFormat,
- dstW, dstH, dstFormat, flags,
- srcFilter, dstFilter, param);
- }
- return context;
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 09:03:24 +0000