diff options
| -rw-r--r-- | libswscale/Makefile | 2 | ||||
| -rw-r--r-- | libswscale/swscale.c | 1551 | ||||
| -rw-r--r-- | libswscale/swscale_internal.h | 17 | ||||
| -rw-r--r-- | libswscale/utils.c | 1589 |
4 files changed, 1620 insertions, 1539 deletions
diff --git a/libswscale/Makefile b/libswscale/Makefile index 247ae8d239..085027789e 100644 --- a/libswscale/Makefile +++ b/libswscale/Makefile @@ -5,7 +5,7 @@ FFLIBS = avutil HEADERS = swscale.h -OBJS = options.o rgb2rgb.o swscale.o yuv2rgb.o +OBJS = options.o rgb2rgb.o swscale.o utils.o yuv2rgb.o OBJS-$(ARCH_BFIN) += bfin/internal_bfin.o \ bfin/swscale_bfin.o \ diff --git a/libswscale/swscale.c b/libswscale/swscale.c index 67a9364c97..fb46dcd5fe 100644 --- a/libswscale/swscale.c +++ b/libswscale/swscale.c @@ -54,23 +54,12 @@ untested special converters BGR24 -> YV12 */ -#define _SVID_SOURCE //needed for MAP_ANONYMOUS #include <inttypes.h> #include <string.h> #include <math.h> #include <stdio.h> #include "config.h" #include <assert.h> -#if HAVE_SYS_MMAN_H -#include <sys/mman.h> -#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS) -#define MAP_ANONYMOUS MAP_ANON -#endif -#endif -#if HAVE_VIRTUALALLOC -#define WIN32_LEAN_AND_MEAN -#include <windows.h> -#endif #include "swscale.h" #include "swscale_internal.h" #include "rgb2rgb.h" @@ -80,22 +69,6 @@ untested special converters #include "libavutil/bswap.h" #include "libavutil/pixdesc.h" -unsigned swscale_version(void) -{ - return LIBSWSCALE_VERSION_INT; -} - -const char *swscale_configuration(void) -{ - return FFMPEG_CONFIGURATION; -} - -const char *swscale_license(void) -{ -#define LICENSE_PREFIX "libswscale license: " - return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; -} - #undef MOVNTQ #undef PAVGB @@ -107,92 +80,12 @@ const char *swscale_license(void) #define FAST_BGR2YV12 // use 7 bit coefficients instead of 15 bit -#define RET 0xC3 //near return opcode for x86 - #ifdef M_PI #define PI M_PI #else #define PI 3.14159265358979323846 #endif -#define isSupportedIn(x) ( \ - (x)==PIX_FMT_YUV420P \ - || (x)==PIX_FMT_YUVA420P \ - || (x)==PIX_FMT_YUYV422 \ - || (x)==PIX_FMT_UYVY422 \ - || (x)==PIX_FMT_RGB48BE \ - || (x)==PIX_FMT_RGB48LE \ - || (x)==PIX_FMT_RGB32 \ - || (x)==PIX_FMT_RGB32_1 \ - || (x)==PIX_FMT_BGR24 \ - || (x)==PIX_FMT_BGR565 \ - || (x)==PIX_FMT_BGR555 \ - || (x)==PIX_FMT_BGR32 \ - || (x)==PIX_FMT_BGR32_1 \ - || (x)==PIX_FMT_RGB24 \ - || (x)==PIX_FMT_RGB565 \ - || (x)==PIX_FMT_RGB555 \ - || (x)==PIX_FMT_GRAY8 \ - || (x)==PIX_FMT_YUV410P \ - || (x)==PIX_FMT_YUV440P \ - || (x)==PIX_FMT_NV12 \ - || (x)==PIX_FMT_NV21 \ - || (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 \ - || (x)==PIX_FMT_YUV440P \ - || (x)==PIX_FMT_MONOWHITE \ - || (x)==PIX_FMT_MONOBLACK \ - || (x)==PIX_FMT_YUV420P16LE \ - || (x)==PIX_FMT_YUV422P16LE \ - || (x)==PIX_FMT_YUV444P16LE \ - || (x)==PIX_FMT_YUV420P16BE \ - || (x)==PIX_FMT_YUV422P16BE \ - || (x)==PIX_FMT_YUV444P16BE \ - ) - -int sws_isSupportedInput(enum PixelFormat pix_fmt) -{ - return isSupportedIn(pix_fmt); -} - -#define isSupportedOut(x) ( \ - (x)==PIX_FMT_YUV420P \ - || (x)==PIX_FMT_YUVA420P \ - || (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 \ - || (x)==PIX_FMT_YUV440P \ - || (x)==PIX_FMT_YUV420P16LE \ - || (x)==PIX_FMT_YUV422P16LE \ - || (x)==PIX_FMT_YUV444P16LE \ - || (x)==PIX_FMT_YUV420P16BE \ - || (x)==PIX_FMT_YUV422P16BE \ - || (x)==PIX_FMT_YUV444P16BE \ - ) - -int sws_isSupportedOutput(enum PixelFormat pix_fmt) -{ - return isSupportedOut(pix_fmt); -} - #define isPacked(x) ( \ (x)==PIX_FMT_PAL8 \ || (x)==PIX_FMT_YUYV422 \ @@ -213,8 +106,6 @@ int sws_isSupportedOutput(enum PixelFormat pix_fmt) #define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5)) #define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5)) -extern const int32_t ff_yuv2rgb_coeffs[8][4]; - static const double rgb2yuv_table[8][9]={ {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, @@ -379,14 +270,6 @@ DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={ }; #endif -const char *sws_format_name(enum PixelFormat format) -{ - if ((unsigned)format < PIX_FMT_NB && av_pix_fmt_descriptors[format].name) - return av_pix_fmt_descriptors[format].name; - else - return "Unknown format"; -} - static av_always_inline void yuv2yuvX16inC_template(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize, const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize, const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest, @@ -1331,515 +1214,7 @@ static inline void monoblack2Y(uint8_t *dst, const uint8_t *src, long width, uin #endif //ARCH_X86 -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 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; - int64_t *filter=NULL; - int64_t *filter2=NULL; - const int64_t fone= 1LL<<54; - int ret= -1; -#if 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 MMX scaler which reads over the end - FF_ALLOC_OR_GOTO(NULL, *filterPos, (dstW+1)*sizeof(int16_t), fail); - - if (FFABS(xInc - 0x10000) <10) { // unscaled - int i; - filterSize= 1; - FF_ALLOCZ_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail); - - for (i=0; i<dstW; i++) { - filter[i*filterSize]= fone; - (*filterPos)[i]=i; - } - - } else if (flags&SWS_POINT) { // lame looking point sampling mode - int i; - int xDstInSrc; - filterSize= 1; - FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail); - - xDstInSrc= xInc/2 - 0x8000; - for (i=0; i<dstW; i++) { - int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16; - - (*filterPos)[i]= xx; - filter[i]= fone; - xDstInSrc+= xInc; - } - } else if ((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) { // bilinear upscale - int i; - int xDstInSrc; - filterSize= 2; - FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail); - - 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++) { - int64_t coeff= fone - FFABS((xx<<16) - xDstInSrc)*(fone>>16); - if (coeff<0) coeff=0; - filter[i*filterSize + j]= coeff; - xx++; - } - xDstInSrc+= xInc; - } - } else { - int xDstInSrc; - int sizeFactor; - - if (flags&SWS_BICUBIC) sizeFactor= 4; - else if (flags&SWS_X) sizeFactor= 8; - else if (flags&SWS_AREA) sizeFactor= 1; //downscale only, for upscale it is bilinear - else if (flags&SWS_GAUSS) sizeFactor= 8; // infinite ;) - else if (flags&SWS_LANCZOS) sizeFactor= param[0] != SWS_PARAM_DEFAULT ? ceil(2*param[0]) : 6; - else if (flags&SWS_SINC) sizeFactor= 20; // infinite ;) - else if (flags&SWS_SPLINE) sizeFactor= 20; // infinite ;) - else if (flags&SWS_BILINEAR) sizeFactor= 2; - else { - sizeFactor= 0; //GCC warning killer - assert(0); - } - - if (xInc <= 1<<16) filterSize= 1 + sizeFactor; // upscale - else filterSize= 1 + (sizeFactor*srcW + dstW - 1)/ dstW; - - if (filterSize > srcW-2) filterSize=srcW-2; - - FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail); - - xDstInSrc= xInc - 0x10000; - for (i=0; i<dstW; i++) { - int xx= (xDstInSrc - ((filterSize-2)<<16)) / (1<<17); - int j; - (*filterPos)[i]= xx; - for (j=0; j<filterSize; j++) { - int64_t d= ((int64_t)FFABS((xx<<17) - xDstInSrc))<<13; - double floatd; - int64_t coeff; - - if (xInc > 1<<16) - d= d*dstW/srcW; - floatd= d * (1.0/(1<<30)); - - if (flags & SWS_BICUBIC) { - int64_t B= (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1<<24); - int64_t C= (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1<<24); - int64_t dd = ( d*d)>>30; - int64_t ddd= (dd*d)>>30; - - if (d < 1LL<<30) - coeff = (12*(1<<24)-9*B-6*C)*ddd + (-18*(1<<24)+12*B+6*C)*dd + (6*(1<<24)-2*B)*(1<<30); - else if (d < 1LL<<31) - coeff = (-B-6*C)*ddd + (6*B+30*C)*dd + (-12*B-48*C)*d + (8*B+24*C)*(1<<30); - else - coeff=0.0; - coeff *= fone>>(30+24); - } -/* 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; - double c; - - if (floatd<1.0) - c = cos(floatd*PI); - else - c=-1.0; - if (c<0.0) c= -pow(-c, A); - else c= pow( c, A); - coeff= (c*0.5 + 0.5)*fone; - } else if (flags & SWS_AREA) { - int64_t d2= d - (1<<29); - if (d2*xInc < -(1LL<<(29+16))) coeff= 1.0 * (1LL<<(30+16)); - else if (d2*xInc < (1LL<<(29+16))) coeff= -d2*xInc + (1LL<<(29+16)); - else coeff=0.0; - coeff *= fone>>(30+16); - } else if (flags & SWS_GAUSS) { - double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0; - coeff = (pow(2.0, - p*floatd*floatd))*fone; - } else if (flags & SWS_SINC) { - coeff = (d ? sin(floatd*PI)/(floatd*PI) : 1.0)*fone; - } else if (flags & SWS_LANCZOS) { - double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0; - coeff = (d ? sin(floatd*PI)*sin(floatd*PI/p)/(floatd*floatd*PI*PI/p) : 1.0)*fone; - if (floatd>p) coeff=0; - } else if (flags & SWS_BILINEAR) { - coeff= (1<<30) - d; - if (coeff<0) coeff=0; - coeff *= fone >> 30; - } else if (flags & SWS_SPLINE) { - double p=-2.196152422706632; - coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, floatd) * fone; - } else { - coeff= 0.0; //GCC warning killer - assert(0); - } - - filter[i*filterSize + j]= coeff; - xx++; - } - xDstInSrc+= 2*xInc; - } - } - - /* 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); - FF_ALLOCZ_OR_GOTO(NULL, filter2, filter2Size*dstW*sizeof(*filter2), fail); - - for (i=0; i<dstW; i++) { - int j, k; - - if(srcFilter) { - for (k=0; k<srcFilter->length; k++) { - for (j=0; j<filterSize; j++) - filter2[i*filter2Size + k + j] += srcFilter->coeff[k]*filter[i*filterSize + j]; - } - } else { - for (j=0; j<filterSize; j++) - filter2[i*filter2Size + j]= filter[i*filterSize + j]; - } - //FIXME dstFilter - - (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2; - } - 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; - int64_t cutOff=0.0; - - /* get rid of 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*fone) break; - - /* preserve monotonicity because the core can't handle the filter otherwise */ - if (i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break; - - // move filter coefficients left - for (k=1; k<filter2Size; k++) - filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k]; - filter2[i*filter2Size + k - 1]= 0; - (*filterPos)[i]++; - } - - cutOff=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*fone) 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 filters. - // Vectorizing is worth it only if you have a - // 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(*filter)); - if (filterSize >= MAX_FILTER_SIZE*16/((flags&SWS_ACCURATE_RND) ? APCK_SIZE : 16) || !filter) - goto fail; - *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; - else filter[i*filterSize + j]= filter2[i*filter2Size + j]; - if((flags & SWS_BITEXACT) && j>=minFilterSize) - filter[i*filterSize + j]= 0; - } - } - - //FIXME try to align filterPos if possible - - //fix borders - for (i=0; i<dstW; i++) { - int j; - if ((*filterPos)[i] < 0) { - // move filter coefficients 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 coefficients 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 MMX scaler which reads over the end - /* align at 16 for AltiVec (needed by hScale_altivec_real) */ - FF_ALLOCZ_OR_GOTO(NULL, *outFilter, *outFilterSize*(dstW+1)*sizeof(int16_t), fail); - - /* normalize & store in outFilter */ - for (i=0; i<dstW; i++) { - int j; - int64_t error=0; - int64_t sum=0; - - for (j=0; j<filterSize; j++) { - sum+= filter[i*filterSize + j]; - } - sum= (sum + one/2)/ one; - for (j=0; j<*outFilterSize; j++) { - int64_t v= filter[i*filterSize + j] + error; - int intV= ROUNDED_DIV(v, sum); - (*outFilter)[i*(*outFilterSize) + j]= intV; - error= v - intV*sum; - } - } - - (*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; -fail: - av_free(filter); - av_free(filter2); - return ret; -} - -#ifdef COMPILE_MMX2 -static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits) -{ - uint8_t *fragmentA; - x86_reg imm8OfPShufW1A; - x86_reg imm8OfPShufW2A; - x86_reg fragmentLengthA; - uint8_t *fragmentB; - x86_reg imm8OfPShufW1B; - x86_reg imm8OfPShufW2B; - x86_reg fragmentLengthB; - int fragmentPos; - - int xpos, i; - - // create an optimized horizontal scaling routine - /* This scaler is made of runtime-generated MMX2 code using specially - * tuned pshufw instructions. For every four output pixels, if four - * input pixels are enough for the fast bilinear scaling, then a chunk - * of fragmentB is used. If five input pixels are needed, then a chunk - * of fragmentA is used. - */ - - //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; - int inc = (d+1<4); - uint8_t *fragment = (d+1<4) ? fragmentB : fragmentA; - x86_reg imm8OfPShufW1 = (d+1<4) ? imm8OfPShufW1B : imm8OfPShufW1A; - x86_reg imm8OfPShufW2 = (d+1<4) ? imm8OfPShufW2B : imm8OfPShufW2A; - x86_reg fragmentLength = (d+1<4) ? fragmentLengthB : fragmentLengthA; - int maxShift= 3-(d+inc); - int shift=0; - - if (filterCode) { - 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; - - memcpy(filterCode + fragmentPos, fragment, fragmentLength); - - filterCode[fragmentPos + imm8OfPShufW1]= - (a+inc) | ((b+inc)<<2) | ((c+inc)<<4) | ((d+inc)<<6); - filterCode[fragmentPos + imm8OfPShufW2]= - a | (b<<2) | (c<<4) | (d<<6); - - if (i+4-inc>=dstW) shift=maxShift; //avoid overread - else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align - - if (shift && i>=shift) { - filterCode[fragmentPos + imm8OfPShufW1]+= 0x55*shift; - filterCode[fragmentPos + imm8OfPShufW2]+= 0x55*shift; - filterPos[i/2]-=shift; - } - } - - fragmentPos+= fragmentLength; - - if (filterCode) - filterCode[fragmentPos]= RET; - } - xpos+=xInc; - } - if (filterCode) - filterPos[((i/2)+1)&(~1)]= xpos>>16; // needed to jump to the next part - - return fragmentPos + 1; -} -#endif /* COMPILE_MMX2 */ - -static SwsFunc getSwsFunc(SwsContext *c) +SwsFunc ff_getSwsFunc(SwsContext *c) { #if CONFIG_RUNTIME_CPUDETECT int flags = c->flags; @@ -2260,137 +1635,9 @@ static int planarCopy(SwsContext *c, const uint8_t* src[], int srcStride[], int return srcSliceH; } -static void getSubSampleFactors(int *h, int *v, enum PixelFormat format) -{ - *h = av_pix_fmt_descriptors[format].log2_chroma_w; - *v = av_pix_fmt_descriptors[format].log2_chroma_h; -} - -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; -} - -int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation) +int ff_hardcodedcpuflags(void) { - 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 -1; - - 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; - - c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13); - c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9); - c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13); - c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13); - c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13); - c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13); - - ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation); - //FIXME factorize - -#ifdef COMPILE_ALTIVEC - if (c->flags & SWS_CPU_CAPS_ALTIVEC) - ff_yuv2rgb_init_tables_altivec(c, inv_table, brightness, contrast, saturation); -#endif - return 0; -} - -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(enum PixelFormat *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, enum PixelFormat srcFormat, - int dstW, int dstH, enum PixelFormat dstFormat, int flags, - SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param) -{ - - SwsContext *c; - int i; - int usesVFilter, usesHFilter; - int unscaled, needsDither; - int srcRange, dstRange; - SwsFilter dummyFilter= {NULL, NULL, NULL, NULL}; -#if ARCH_X86 - if (flags & SWS_CPU_CAPS_MMX) - __asm__ volatile("emms\n\t"::: "memory"); -#endif - -#if !CONFIG_RUNTIME_CPUDETECT //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); + int flags = 0; #if COMPILE_TEMPLATE_MMX2 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2; #elif COMPILE_TEMPLATE_AMD3DNOW @@ -2402,116 +1649,21 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, #elif ARCH_BFIN flags |= SWS_CPU_CAPS_BFIN; #endif -#endif /* CONFIG_RUNTIME_CPUDETECT */ - if (!rgb15to16) sws_rgb2rgb_init(flags); + return flags; +} + +void ff_get_unscaled_swscale(SwsContext *c) +{ + const enum PixelFormat srcFormat = c->srcFormat; + const enum PixelFormat dstFormat = c->dstFormat; + const int flags = c->flags; + const int dstH = c->dstH; + int needsDither; - 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 chosen\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 maximum width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n"); - return NULL; - } - - if (!dstFilter) dstFilter= &dummyFilter; - if (!srcFilter) srcFilter= &dummyFilter; - - FF_ALLOCZ_OR_GOTO(NULL, c, sizeof(SwsContext), fail); - - 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 pixels 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 other 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; - } - - // 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, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], srcRange, ff_yuv2rgb_coeffs[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 || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) { c->swScale= PlanarToNV12Wrapper; @@ -2617,298 +1769,6 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, 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 x86 asm 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 */ - { -#if defined(COMPILE_MMX2) -// can't downscale !!! - if (c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR)) { - c->lumMmx2FilterCodeSize = initMMX2HScaler( dstW, c->lumXInc, NULL, NULL, NULL, 8); - c->chrMmx2FilterCodeSize = initMMX2HScaler(c->chrDstW, c->chrXInc, NULL, NULL, NULL, 4); - -#ifdef MAP_ANONYMOUS - c->lumMmx2FilterCode = mmap(NULL, c->lumMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); - c->chrMmx2FilterCode = mmap(NULL, c->chrMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); -#elif HAVE_VIRTUALALLOC - c->lumMmx2FilterCode = VirtualAlloc(NULL, c->lumMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE); - c->chrMmx2FilterCode = VirtualAlloc(NULL, c->chrMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE); -#else - c->lumMmx2FilterCode = av_malloc(c->lumMmx2FilterCodeSize); - c->chrMmx2FilterCode = av_malloc(c->chrMmx2FilterCodeSize); -#endif - - FF_ALLOCZ_OR_GOTO(c, c->hLumFilter , (dstW /8+8)*sizeof(int16_t), fail); - FF_ALLOCZ_OR_GOTO(c, c->hChrFilter , (c->chrDstW /4+8)*sizeof(int16_t), fail); - FF_ALLOCZ_OR_GOTO(c, c->hLumFilterPos, (dstW /2/8+8)*sizeof(int32_t), fail); - FF_ALLOCZ_OR_GOTO(c, c->hChrFilterPos, (c->chrDstW/2/4+8)*sizeof(int32_t), fail); - - initMMX2HScaler( dstW, c->lumXInc, c->lumMmx2FilterCode, c->hLumFilter, c->hLumFilterPos, 8); - initMMX2HScaler(c->chrDstW, c->chrXInc, c->chrMmx2FilterCode, c->hChrFilter, c->hChrFilterPos, 4); - -#ifdef MAP_ANONYMOUS - mprotect(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, PROT_EXEC | PROT_READ); - mprotect(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, PROT_EXEC | PROT_READ); -#endif - } else -#endif /* defined(COMPILE_MMX2) */ - { - const int filterAlign= - (flags & SWS_CPU_CAPS_MMX) ? 4 : - (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 : - 1; - - if (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) < 0) - goto fail; - if (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) < 0) - goto fail; - } - } // initialize 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; - - if (initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc, - srcH , dstH, filterAlign, (1<<12), - (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags, - srcFilter->lumV, dstFilter->lumV, c->param) < 0) - goto fail; - if (initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc, - c->chrSrcH, c->chrDstH, filterAlign, (1<<12), - (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags, - srcFilter->chrV, dstFilter->chrV, c->param) < 0) - goto fail; - -#ifdef COMPILE_ALTIVEC - FF_ALLOC_OR_GOTO(c, c->vYCoeffsBank, sizeof (vector signed short)*c->vLumFilterSize*c->dstH, fail); - FF_ALLOC_OR_GOTO(c, c->vCCoeffsBank, sizeof (vector signed short)*c->vChrFilterSize*c->chrDstH, fail); - - 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 - // allocate several megabytes to handle all possible cases) - FF_ALLOC_OR_GOTO(c, c->lumPixBuf, c->vLumBufSize*2*sizeof(int16_t*), fail); - FF_ALLOC_OR_GOTO(c, c->chrPixBuf, c->vChrBufSize*2*sizeof(int16_t*), fail); - if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) - FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf, c->vLumBufSize*2*sizeof(int16_t*), fail); - //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++) { - FF_ALLOCZ_OR_GOTO(c, c->lumPixBuf[i+c->vLumBufSize], VOF+1, fail); - c->lumPixBuf[i] = c->lumPixBuf[i+c->vLumBufSize]; - } - for (i=0; i<c->vChrBufSize; i++) { - FF_ALLOC_OR_GOTO(c, c->chrPixBuf[i+c->vChrBufSize], (VOF+1)*2, fail); - c->chrPixBuf[i] = c->chrPixBuf[i+c->vChrBufSize]; - } - if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) - for (i=0; i<c->vLumBufSize; i++) { - FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf[i+c->vLumBufSize], VOF+1, fail); - c->alpPixBuf[i] = c->alpPixBuf[i+c->vLumBufSize]; - } - - //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) { - 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 Averaging 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?! "); - - av_log(c, AV_LOG_INFO, "from %s to %s%s ", - sws_format_name(srcFormat), -#ifdef DITHER1XBPP - dstFormat == PIX_FMT_BGR555 || dstFormat == PIX_FMT_BGR565 ? "dithered " : "", -#else - "", -#endif - 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 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(c); - return c; - -fail: - sws_freeContext(c); - return NULL; } static void reset_ptr(const uint8_t* src[], int format) @@ -3053,388 +1913,3 @@ int sws_scale_ordered(SwsContext *c, const uint8_t* const src[], int srcStride[] return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride); } #endif - -SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, - float lumaSharpen, float chromaSharpen, - float chromaHShift, float chromaVShift, - int verbose) -{ - SwsFilter *filter= av_malloc(sizeof(SwsFilter)); - if (!filter) - return NULL; - - 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_printVec2(filter->chrH, NULL, AV_LOG_DEBUG); - if (verbose) sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG); - - return filter; -} - -SwsVector *sws_allocVec(int length) -{ - SwsVector *vec = av_malloc(sizeof(SwsVector)); - if (!vec) - return NULL; - vec->length = length; - vec->coeff = av_malloc(sizeof(double) * length); - if (!vec->coeff) - av_freep(&vec); - return vec; -} - -SwsVector *sws_getGaussianVec(double variance, double quality) -{ - const int length= (int)(variance*quality + 0.5) | 1; - int i; - double middle= (length-1)*0.5; - SwsVector *vec= sws_allocVec(length); - - if (!vec) - return NULL; - - for (i=0; i<length; i++) { - double dist= i-middle; - vec->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; - SwsVector *vec= sws_allocVec(length); - - if (!vec) - return NULL; - - for (i=0; i<length; i++) - vec->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; - int i, j; - SwsVector *vec= sws_getConstVec(0.0, length); - - if (!vec) - return NULL; - - for (i=0; i<a->length; i++) { - for (j=0; j<b->length; j++) { - vec->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); - int i; - SwsVector *vec= sws_getConstVec(0.0, length); - - if (!vec) - return NULL; - - for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i]; - for (i=0; i<b->length; i++) vec->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); - int i; - SwsVector *vec= sws_getConstVec(0.0, length); - - if (!vec) - return NULL; - - for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i]; - for (i=0; i<b->length; i++) vec->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; - int i; - SwsVector *vec= sws_getConstVec(0.0, length); - - if (!vec) - return NULL; - - for (i=0; i<a->length; i++) { - vec->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) -{ - int i; - SwsVector *vec= sws_allocVec(a->length); - - if (!vec) - return NULL; - - for (i=0; i<a->length; i++) vec->coeff[i]= a->coeff[i]; - - return vec; -} - -void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level) -{ - 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(log_ctx, log_level, "%1.3f ", a->coeff[i]); - for (;x>0; x--) av_log(log_ctx, log_level, " "); - av_log(log_ctx, log_level, "|\n"); - } -} - -#if LIBSWSCALE_VERSION_MAJOR < 1 -void sws_printVec(SwsVector *a) -{ - sws_printVec2(a, NULL, AV_LOG_DEBUG); -} -#endif - -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); - } - - if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) { - for (i=0; i<c->vLumBufSize; i++) - av_freep(&c->alpPixBuf[i]); - av_freep(&c->alpPixBuf); - } - - av_freep(&c->vLumFilter); - av_freep(&c->vChrFilter); - av_freep(&c->hLumFilter); - av_freep(&c->hChrFilter); -#ifdef COMPILE_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 ARCH_X86 && CONFIG_GPL -#ifdef MAP_ANONYMOUS - if (c->lumMmx2FilterCode) munmap(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize); - if (c->chrMmx2FilterCode) munmap(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize); -#elif HAVE_VIRTUALALLOC - if (c->lumMmx2FilterCode) VirtualFree(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, MEM_RELEASE); - if (c->chrMmx2FilterCode) VirtualFree(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, MEM_RELEASE); -#else - av_free(c->lumMmx2FilterCode); - av_free(c->chrMmx2FilterCode); -#endif - c->lumMmx2FilterCode=NULL; - c->chrMmx2FilterCode=NULL; -#endif /* ARCH_X86 && CONFIG_GPL */ - - av_freep(&c->yuvTable); - - av_free(c); -} - -struct SwsContext *sws_getCachedContext(struct SwsContext *context, - int srcW, int srcH, enum PixelFormat srcFormat, - int dstW, int dstH, enum PixelFormat dstFormat, int flags, - SwsFilter *srcFilter, SwsFilter *dstFilter, const 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; -} - diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h index 0ae6dbc0f2..658c4aef72 100644 --- a/libswscale/swscale_internal.h +++ b/libswscale/swscale_internal.h @@ -460,4 +460,21 @@ extern const uint64_t ff_dither8[2]; extern const AVClass sws_context_class; +/** + * Sets c->swScale to an unscaled converter if one exists for the specific + * source and destination formats, bit depths, flags, etc. + */ +void ff_get_unscaled_swscale(SwsContext *c); + +/** + * Returns the SWS_CPU_CAPS for the optimized code compiled into swscale. + */ +int ff_hardcodedcpuflags(void); + +/** + * Returns function pointer to fastest main scaler path function depending + * on architecture and available optimizations. + */ +SwsFunc ff_getSwsFunc(SwsContext *c); + #endif /* SWSCALE_SWSCALE_INTERNAL_H */ diff --git a/libswscale/utils.c b/libswscale/utils.c new file mode 100644 index 0000000000..1a7a36454b --- /dev/null +++ b/libswscale/utils.c @@ -0,0 +1,1589 @@ +/* + * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * the C code (not assembly, mmx, ...) of this file can be used + * under the LGPL license too + */ + +#define _SVID_SOURCE //needed for MAP_ANONYMOUS +#include <inttypes.h> +#include <string.h> +#include <math.h> +#include <stdio.h> +#include "config.h" +#include <assert.h> +#if HAVE_SYS_MMAN_H +#include <sys/mman.h> +#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS) +#define MAP_ANONYMOUS MAP_ANON +#endif +#endif +#if HAVE_VIRTUALALLOC +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +#endif +#include "swscale.h" +#include "swscale_internal.h" +#include "rgb2rgb.h" +#include "libavutil/intreadwrite.h" +#include "libavutil/x86_cpu.h" +#include "libavutil/avutil.h" +#include "libavutil/bswap.h" +#include "libavutil/pixdesc.h" + +unsigned swscale_version(void) +{ + return LIBSWSCALE_VERSION_INT; +} + +const char *swscale_configuration(void) +{ + return FFMPEG_CONFIGURATION; +} + +const char *swscale_license(void) +{ +#define LICENSE_PREFIX "libswscale license: " + return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; +} + +#define RET 0xC3 //near return opcode for x86 + +#ifdef M_PI +#define PI M_PI +#else +#define PI 3.14159265358979323846 +#endif + +#define isSupportedIn(x) ( \ + (x)==PIX_FMT_YUV420P \ + || (x)==PIX_FMT_YUVA420P \ + || (x)==PIX_FMT_YUYV422 \ + || (x)==PIX_FMT_UYVY422 \ + || (x)==PIX_FMT_RGB48BE \ + || (x)==PIX_FMT_RGB48LE \ + || (x)==PIX_FMT_RGB32 \ + || (x)==PIX_FMT_RGB32_1 \ + || (x)==PIX_FMT_BGR24 \ + || (x)==PIX_FMT_BGR565 \ + || (x)==PIX_FMT_BGR555 \ + || (x)==PIX_FMT_BGR32 \ + || (x)==PIX_FMT_BGR32_1 \ + || (x)==PIX_FMT_RGB24 \ + || (x)==PIX_FMT_RGB565 \ + || (x)==PIX_FMT_RGB555 \ + || (x)==PIX_FMT_GRAY8 \ + || (x)==PIX_FMT_YUV410P \ + || (x)==PIX_FMT_YUV440P \ + || (x)==PIX_FMT_NV12 \ + || (x)==PIX_FMT_NV21 \ + || (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 \ + || (x)==PIX_FMT_YUV440P \ + || (x)==PIX_FMT_MONOWHITE \ + || (x)==PIX_FMT_MONOBLACK \ + || (x)==PIX_FMT_YUV420P16LE \ + || (x)==PIX_FMT_YUV422P16LE \ + || (x)==PIX_FMT_YUV444P16LE \ + || (x)==PIX_FMT_YUV420P16BE \ + || (x)==PIX_FMT_YUV422P16BE \ + || (x)==PIX_FMT_YUV444P16BE \ + ) + +int sws_isSupportedInput(enum PixelFormat pix_fmt) +{ + return isSupportedIn(pix_fmt); +} + +#define isSupportedOut(x) ( \ + (x)==PIX_FMT_YUV420P \ + || (x)==PIX_FMT_YUVA420P \ + || (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 \ + || (x)==PIX_FMT_YUV440P \ + || (x)==PIX_FMT_YUV420P16LE \ + || (x)==PIX_FMT_YUV422P16LE \ + || (x)==PIX_FMT_YUV444P16LE \ + || (x)==PIX_FMT_YUV420P16BE \ + || (x)==PIX_FMT_YUV422P16BE \ + || (x)==PIX_FMT_YUV444P16BE \ + ) + +int sws_isSupportedOutput(enum PixelFormat pix_fmt) +{ + return isSupportedOut(pix_fmt); +} + +#define usePal(x) (av_pix_fmt_descriptors[x].flags & PIX_FMT_PAL) + +extern const int32_t ff_yuv2rgb_coeffs[8][4]; + +const char *sws_format_name(enum PixelFormat format) +{ + if ((unsigned)format < PIX_FMT_NB && av_pix_fmt_descriptors[format].name) + return av_pix_fmt_descriptors[format].name; + else + return "Unknown format"; +} + +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 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; + int64_t *filter=NULL; + int64_t *filter2=NULL; + const int64_t fone= 1LL<<54; + int ret= -1; +#if 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 MMX scaler which reads over the end + FF_ALLOC_OR_GOTO(NULL, *filterPos, (dstW+1)*sizeof(int16_t), fail); + + if (FFABS(xInc - 0x10000) <10) { // unscaled + int i; + filterSize= 1; + FF_ALLOCZ_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail); + + for (i=0; i<dstW; i++) { + filter[i*filterSize]= fone; + (*filterPos)[i]=i; + } + + } else if (flags&SWS_POINT) { // lame looking point sampling mode + int i; + int xDstInSrc; + filterSize= 1; + FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail); + + xDstInSrc= xInc/2 - 0x8000; + for (i=0; i<dstW; i++) { + int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16; + + (*filterPos)[i]= xx; + filter[i]= fone; + xDstInSrc+= xInc; + } + } else if ((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) { // bilinear upscale + int i; + int xDstInSrc; + filterSize= 2; + FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail); + + 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++) { + int64_t coeff= fone - FFABS((xx<<16) - xDstInSrc)*(fone>>16); + if (coeff<0) coeff=0; + filter[i*filterSize + j]= coeff; + xx++; + } + xDstInSrc+= xInc; + } + } else { + int xDstInSrc; + int sizeFactor; + + if (flags&SWS_BICUBIC) sizeFactor= 4; + else if (flags&SWS_X) sizeFactor= 8; + else if (flags&SWS_AREA) sizeFactor= 1; //downscale only, for upscale it is bilinear + else if (flags&SWS_GAUSS) sizeFactor= 8; // infinite ;) + else if (flags&SWS_LANCZOS) sizeFactor= param[0] != SWS_PARAM_DEFAULT ? ceil(2*param[0]) : 6; + else if (flags&SWS_SINC) sizeFactor= 20; // infinite ;) + else if (flags&SWS_SPLINE) sizeFactor= 20; // infinite ;) + else if (flags&SWS_BILINEAR) sizeFactor= 2; + else { + sizeFactor= 0; //GCC warning killer + assert(0); + } + + if (xInc <= 1<<16) filterSize= 1 + sizeFactor; // upscale + else filterSize= 1 + (sizeFactor*srcW + dstW - 1)/ dstW; + + if (filterSize > srcW-2) filterSize=srcW-2; + + FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail); + + xDstInSrc= xInc - 0x10000; + for (i=0; i<dstW; i++) { + int xx= (xDstInSrc - ((filterSize-2)<<16)) / (1<<17); + int j; + (*filterPos)[i]= xx; + for (j=0; j<filterSize; j++) { + int64_t d= ((int64_t)FFABS((xx<<17) - xDstInSrc))<<13; + double floatd; + int64_t coeff; + + if (xInc > 1<<16) + d= d*dstW/srcW; + floatd= d * (1.0/(1<<30)); + + if (flags & SWS_BICUBIC) { + int64_t B= (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1<<24); + int64_t C= (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1<<24); + int64_t dd = ( d*d)>>30; + int64_t ddd= (dd*d)>>30; + + if (d < 1LL<<30) + coeff = (12*(1<<24)-9*B-6*C)*ddd + (-18*(1<<24)+12*B+6*C)*dd + (6*(1<<24)-2*B)*(1<<30); + else if (d < 1LL<<31) + coeff = (-B-6*C)*ddd + (6*B+30*C)*dd + (-12*B-48*C)*d + (8*B+24*C)*(1<<30); + else + coeff=0.0; + coeff *= fone>>(30+24); + } +/* 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; + double c; + + if (floatd<1.0) + c = cos(floatd*PI); + else + c=-1.0; + if (c<0.0) c= -pow(-c, A); + else c= pow( c, A); + coeff= (c*0.5 + 0.5)*fone; + } else if (flags & SWS_AREA) { + int64_t d2= d - (1<<29); + if (d2*xInc < -(1LL<<(29+16))) coeff= 1.0 * (1LL<<(30+16)); + else if (d2*xInc < (1LL<<(29+16))) coeff= -d2*xInc + (1LL<<(29+16)); + else coeff=0.0; + coeff *= fone>>(30+16); + } else if (flags & SWS_GAUSS) { + double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0; + coeff = (pow(2.0, - p*floatd*floatd))*fone; + } else if (flags & SWS_SINC) { + coeff = (d ? sin(floatd*PI)/(floatd*PI) : 1.0)*fone; + } else if (flags & SWS_LANCZOS) { + double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0; + coeff = (d ? sin(floatd*PI)*sin(floatd*PI/p)/(floatd*floatd*PI*PI/p) : 1.0)*fone; + if (floatd>p) coeff=0; + } else if (flags & SWS_BILINEAR) { + coeff= (1<<30) - d; + if (coeff<0) coeff=0; + coeff *= fone >> 30; + } else if (flags & SWS_SPLINE) { + double p=-2.196152422706632; + coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, floatd) * fone; + } else { + coeff= 0.0; //GCC warning killer + assert(0); + } + + filter[i*filterSize + j]= coeff; + xx++; + } + xDstInSrc+= 2*xInc; + } + } + + /* 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); + FF_ALLOCZ_OR_GOTO(NULL, filter2, filter2Size*dstW*sizeof(*filter2), fail); + + for (i=0; i<dstW; i++) { + int j, k; + + if(srcFilter) { + for (k=0; k<srcFilter->length; k++) { + for (j=0; j<filterSize; j++) + filter2[i*filter2Size + k + j] += srcFilter->coeff[k]*filter[i*filterSize + j]; + } + } else { + for (j=0; j<filterSize; j++) + filter2[i*filter2Size + j]= filter[i*filterSize + j]; + } + //FIXME dstFilter + + (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2; + } + 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; + int64_t cutOff=0.0; + + /* get rid of 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*fone) break; + + /* preserve monotonicity because the core can't handle the filter otherwise */ + if (i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break; + + // move filter coefficients left + for (k=1; k<filter2Size; k++) + filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k]; + filter2[i*filter2Size + k - 1]= 0; + (*filterPos)[i]++; + } + + cutOff=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*fone) 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 filters. + // Vectorizing is worth it only if you have a + // 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(*filter)); + if (filterSize >= MAX_FILTER_SIZE*16/((flags&SWS_ACCURATE_RND) ? APCK_SIZE : 16) || !filter) + goto fail; + *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; + else filter[i*filterSize + j]= filter2[i*filter2Size + j]; + if((flags & SWS_BITEXACT) && j>=minFilterSize) + filter[i*filterSize + j]= 0; + } + } + + //FIXME try to align filterPos if possible + + //fix borders + for (i=0; i<dstW; i++) { + int j; + if ((*filterPos)[i] < 0) { + // move filter coefficients 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 coefficients 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 MMX scaler which reads over the end + /* align at 16 for AltiVec (needed by hScale_altivec_real) */ + FF_ALLOCZ_OR_GOTO(NULL, *outFilter, *outFilterSize*(dstW+1)*sizeof(int16_t), fail); + + /* normalize & store in outFilter */ + for (i=0; i<dstW; i++) { + int j; + int64_t error=0; + int64_t sum=0; + + for (j=0; j<filterSize; j++) { + sum+= filter[i*filterSize + j]; + } + sum= (sum + one/2)/ one; + for (j=0; j<*outFilterSize; j++) { + int64_t v= filter[i*filterSize + j] + error; + int intV= ROUNDED_DIV(v, sum); + (*outFilter)[i*(*outFilterSize) + j]= intV; + error= v - intV*sum; + } + } + + (*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; +fail: + av_free(filter); + av_free(filter2); + return ret; +} + +#if ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL +static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits) +{ + uint8_t *fragmentA; + x86_reg imm8OfPShufW1A; + x86_reg imm8OfPShufW2A; + x86_reg fragmentLengthA; + uint8_t *fragmentB; + x86_reg imm8OfPShufW1B; + x86_reg imm8OfPShufW2B; + x86_reg fragmentLengthB; + int fragmentPos; + + int xpos, i; + + // create an optimized horizontal scaling routine + /* This scaler is made of runtime-generated MMX2 code using specially + * tuned pshufw instructions. For every four output pixels, if four + * input pixels are enough for the fast bilinear scaling, then a chunk + * of fragmentB is used. If five input pixels are needed, then a chunk + * of fragmentA is used. + */ + + //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; + int inc = (d+1<4); + uint8_t *fragment = (d+1<4) ? fragmentB : fragmentA; + x86_reg imm8OfPShufW1 = (d+1<4) ? imm8OfPShufW1B : imm8OfPShufW1A; + x86_reg imm8OfPShufW2 = (d+1<4) ? imm8OfPShufW2B : imm8OfPShufW2A; + x86_reg fragmentLength = (d+1<4) ? fragmentLengthB : fragmentLengthA; + int maxShift= 3-(d+inc); + int shift=0; + + if (filterCode) { + 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; + + memcpy(filterCode + fragmentPos, fragment, fragmentLength); + + filterCode[fragmentPos + imm8OfPShufW1]= + (a+inc) | ((b+inc)<<2) | ((c+inc)<<4) | ((d+inc)<<6); + filterCode[fragmentPos + imm8OfPShufW2]= + a | (b<<2) | (c<<4) | (d<<6); + + if (i+4-inc>=dstW) shift=maxShift; //avoid overread + else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align + + if (shift && i>=shift) { + filterCode[fragmentPos + imm8OfPShufW1]+= 0x55*shift; + filterCode[fragmentPos + imm8OfPShufW2]+= 0x55*shift; + filterPos[i/2]-=shift; + } + } + + fragmentPos+= fragmentLength; + + if (filterCode) + filterCode[fragmentPos]= RET; + } + xpos+=xInc; + } + if (filterCode) + filterPos[((i/2)+1)&(~1)]= xpos>>16; // needed to jump to the next part + + return fragmentPos + 1; +} +#endif /* ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL */ + +static void getSubSampleFactors(int *h, int *v, enum PixelFormat format) +{ + *h = av_pix_fmt_descriptors[format].log2_chroma_w; + *v = av_pix_fmt_descriptors[format].log2_chroma_h; +} + +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; +} + +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 -1; + + 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; + + c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13); + c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9); + c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13); + c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13); + c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13); + c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13); + + ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation); + //FIXME factorize + +#if ARCH_PPC && (HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT) + if (c->flags & SWS_CPU_CAPS_ALTIVEC) + ff_yuv2rgb_init_tables_altivec(c, inv_table, brightness, contrast, saturation); +#endif + return 0; +} + +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(enum PixelFormat *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, enum PixelFormat srcFormat, + int dstW, int dstH, enum PixelFormat dstFormat, int flags, + SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param) +{ + + SwsContext *c; + int i; + int usesVFilter, usesHFilter; + int unscaled; + int srcRange, dstRange; + SwsFilter dummyFilter= {NULL, NULL, NULL, NULL}; +#if ARCH_X86 + if (flags & SWS_CPU_CAPS_MMX) + __asm__ volatile("emms\n\t"::: "memory"); +#endif + +#if !CONFIG_RUNTIME_CPUDETECT //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); + flags |= ff_hardcodedcpuflags(); +#endif /* CONFIG_RUNTIME_CPUDETECT */ + if (!rgb15to16) sws_rgb2rgb_init(flags); + + unscaled = (srcW == dstW && srcH == dstH); + + 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 chosen\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 maximum width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n"); + return NULL; + } + + if (!dstFilter) dstFilter= &dummyFilter; + if (!srcFilter) srcFilter= &dummyFilter; + + FF_ALLOCZ_OR_GOTO(NULL, c, sizeof(SwsContext), fail); + + 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 pixels 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 other 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; + } + + // 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, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], srcRange, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT] /* FIXME*/, dstRange, 0, 1<<16, 1<<16); + + /* unscaled special cases */ + if (unscaled && !usesHFilter && !usesVFilter && (srcRange == dstRange || isBGR(dstFormat) || isRGB(dstFormat))) { + ff_get_unscaled_swscale(c); + + 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 x86 asm 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 */ + { +#if ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL +// can't downscale !!! + if (c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR)) { + c->lumMmx2FilterCodeSize = initMMX2HScaler( dstW, c->lumXInc, NULL, NULL, NULL, 8); + c->chrMmx2FilterCodeSize = initMMX2HScaler(c->chrDstW, c->chrXInc, NULL, NULL, NULL, 4); + +#ifdef MAP_ANONYMOUS + c->lumMmx2FilterCode = mmap(NULL, c->lumMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); + c->chrMmx2FilterCode = mmap(NULL, c->chrMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); +#elif HAVE_VIRTUALALLOC + c->lumMmx2FilterCode = VirtualAlloc(NULL, c->lumMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE); + c->chrMmx2FilterCode = VirtualAlloc(NULL, c->chrMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE); +#else + c->lumMmx2FilterCode = av_malloc(c->lumMmx2FilterCodeSize); + c->chrMmx2FilterCode = av_malloc(c->chrMmx2FilterCodeSize); +#endif + + FF_ALLOCZ_OR_GOTO(c, c->hLumFilter , (dstW /8+8)*sizeof(int16_t), fail); + FF_ALLOCZ_OR_GOTO(c, c->hChrFilter , (c->chrDstW /4+8)*sizeof(int16_t), fail); + FF_ALLOCZ_OR_GOTO(c, c->hLumFilterPos, (dstW /2/8+8)*sizeof(int32_t), fail); + FF_ALLOCZ_OR_GOTO(c, c->hChrFilterPos, (c->chrDstW/2/4+8)*sizeof(int32_t), fail); + + initMMX2HScaler( dstW, c->lumXInc, c->lumMmx2FilterCode, c->hLumFilter, c->hLumFilterPos, 8); + initMMX2HScaler(c->chrDstW, c->chrXInc, c->chrMmx2FilterCode, c->hChrFilter, c->hChrFilterPos, 4); + +#ifdef MAP_ANONYMOUS + mprotect(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, PROT_EXEC | PROT_READ); + mprotect(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, PROT_EXEC | PROT_READ); +#endif + } else +#endif /* ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL */ + { + const int filterAlign= + (flags & SWS_CPU_CAPS_MMX) ? 4 : + (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 : + 1; + + if (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) < 0) + goto fail; + if (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) < 0) + goto fail; + } + } // initialize 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; + + if (initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc, + srcH , dstH, filterAlign, (1<<12), + (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags, + srcFilter->lumV, dstFilter->lumV, c->param) < 0) + goto fail; + if (initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc, + c->chrSrcH, c->chrDstH, filterAlign, (1<<12), + (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags, + srcFilter->chrV, dstFilter->chrV, c->param) < 0) + goto fail; + +#if ARCH_PPC && (HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT) + FF_ALLOC_OR_GOTO(c, c->vYCoeffsBank, sizeof (vector signed short)*c->vLumFilterSize*c->dstH, fail); + FF_ALLOC_OR_GOTO(c, c->vCCoeffsBank, sizeof (vector signed short)*c->vChrFilterSize*c->chrDstH, fail); + + 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 + // allocate several megabytes to handle all possible cases) + FF_ALLOC_OR_GOTO(c, c->lumPixBuf, c->vLumBufSize*2*sizeof(int16_t*), fail); + FF_ALLOC_OR_GOTO(c, c->chrPixBuf, c->vChrBufSize*2*sizeof(int16_t*), fail); + if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) + FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf, c->vLumBufSize*2*sizeof(int16_t*), fail); + //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++) { + FF_ALLOCZ_OR_GOTO(c, c->lumPixBuf[i+c->vLumBufSize], VOF+1, fail); + c->lumPixBuf[i] = c->lumPixBuf[i+c->vLumBufSize]; + } + for (i=0; i<c->vChrBufSize; i++) { + FF_ALLOC_OR_GOTO(c, c->chrPixBuf[i+c->vChrBufSize], (VOF+1)*2, fail); + c->chrPixBuf[i] = c->chrPixBuf[i+c->vChrBufSize]; + } + if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) + for (i=0; i<c->vLumBufSize; i++) { + FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf[i+c->vLumBufSize], VOF+1, fail); + c->alpPixBuf[i] = c->alpPixBuf[i+c->vLumBufSize]; + } + + //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) { + 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 Averaging 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?! "); + + av_log(c, AV_LOG_INFO, "from %s to %s%s ", + sws_format_name(srcFormat), +#ifdef DITHER1XBPP + dstFormat == PIX_FMT_BGR555 || dstFormat == PIX_FMT_BGR565 ? "dithered " : "", +#else + "", +#endif + 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 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= ff_getSwsFunc(c); + return c; + +fail: + sws_freeContext(c); + return NULL; +} + +SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, + float lumaSharpen, float chromaSharpen, + float chromaHShift, float chromaVShift, + int verbose) +{ + SwsFilter *filter= av_malloc(sizeof(SwsFilter)); + if (!filter) + return NULL; + + 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_printVec2(filter->chrH, NULL, AV_LOG_DEBUG); + if (verbose) sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG); + + return filter; +} + +SwsVector *sws_allocVec(int length) +{ + SwsVector *vec = av_malloc(sizeof(SwsVector)); + if (!vec) + return NULL; + vec->length = length; + vec->coeff = av_malloc(sizeof(double) * length); + if (!vec->coeff) + av_freep(&vec); + return vec; +} + +SwsVector *sws_getGaussianVec(double variance, double quality) +{ + const int length= (int)(variance*quality + 0.5) | 1; + int i; + double middle= (length-1)*0.5; + SwsVector *vec= sws_allocVec(length); + + if (!vec) + return NULL; + + for (i=0; i<length; i++) { + double dist= i-middle; + vec->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; + SwsVector *vec= sws_allocVec(length); + + if (!vec) + return NULL; + + for (i=0; i<length; i++) + vec->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; + int i, j; + SwsVector *vec= sws_getConstVec(0.0, length); + + if (!vec) + return NULL; + + for (i=0; i<a->length; i++) { + for (j=0; j<b->length; j++) { + vec->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); + int i; + SwsVector *vec= sws_getConstVec(0.0, length); + + if (!vec) + return NULL; + + for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i]; + for (i=0; i<b->length; i++) vec->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); + int i; + SwsVector *vec= sws_getConstVec(0.0, length); + + if (!vec) + return NULL; + + for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i]; + for (i=0; i<b->length; i++) vec->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; + int i; + SwsVector *vec= sws_getConstVec(0.0, length); + + if (!vec) + return NULL; + + for (i=0; i<a->length; i++) { + vec->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) +{ + int i; + SwsVector *vec= sws_allocVec(a->length); + + if (!vec) + return NULL; + + for (i=0; i<a->length; i++) vec->coeff[i]= a->coeff[i]; + + return vec; +} + +void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level) +{ + 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(log_ctx, log_level, "%1.3f ", a->coeff[i]); + for (;x>0; x--) av_log(log_ctx, log_level, " "); + av_log(log_ctx, log_level, "|\n"); + } +} + +#if LIBSWSCALE_VERSION_MAJOR < 1 +void sws_printVec(SwsVector *a) +{ + sws_printVec2(a, NULL, AV_LOG_DEBUG); +} +#endif + +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); + } + + if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) { + for (i=0; i<c->vLumBufSize; i++) + av_freep(&c->alpPixBuf[i]); + av_freep(&c->alpPixBuf); + } + + av_freep(&c->vLumFilter); + av_freep(&c->vChrFilter); + av_freep(&c->hLumFilter); + av_freep(&c->hChrFilter); +#if ARCH_PPC && (HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT) + 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 ARCH_X86 && CONFIG_GPL +#ifdef MAP_ANONYMOUS + if (c->lumMmx2FilterCode) munmap(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize); + if (c->chrMmx2FilterCode) munmap(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize); +#elif HAVE_VIRTUALALLOC + if (c->lumMmx2FilterCode) VirtualFree(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, MEM_RELEASE); + if (c->chrMmx2FilterCode) VirtualFree(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, MEM_RELEASE); +#else + av_free(c->lumMmx2FilterCode); + av_free(c->chrMmx2FilterCode); +#endif + c->lumMmx2FilterCode=NULL; + c->chrMmx2FilterCode=NULL; +#endif /* ARCH_X86 && CONFIG_GPL */ + + av_freep(&c->yuvTable); + + av_free(c); +} + +struct SwsContext *sws_getCachedContext(struct SwsContext *context, + int srcW, int srcH, enum PixelFormat srcFormat, + int dstW, int dstH, enum PixelFormat dstFormat, int flags, + SwsFilter *srcFilter, SwsFilter *dstFilter, const 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; +} + |