mirror of https://github.com/mpv-player/mpv
530 lines
15 KiB
C
530 lines
15 KiB
C
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// Software scaling and colorspace conversion routines for MPlayer
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// Orginal C implementation by A'rpi/ESP-team <arpi@thot.banki.hu>
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// current version mostly by Michael Niedermayer (michaelni@gmx.at)
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// the parts written by michael are under GNU GPL
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#include <inttypes.h>
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#include <string.h>
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#include <math.h>
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#include <stdio.h>
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#include "../config.h"
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#ifdef HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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#include "swscale.h"
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#include "../cpudetect.h"
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#undef MOVNTQ
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#undef PAVGB
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//#undef HAVE_MMX2
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//#undef HAVE_MMX
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//#undef ARCH_X86
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#define DITHER1XBPP
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int fullUVIpol=0;
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//disables the unscaled height version
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int allwaysIpol=0;
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#define RET 0xC3 //near return opcode
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//#define ASSERT(x) if(!(x)) { printf("ASSERT " #x " failed\n"); *((int*)0)=0; }
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#define ASSERT(x) ;
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extern int verbose; // defined in mplayer.c
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/*
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NOTES
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known BUGS with known cause (no bugreports please!, but patches are welcome :) )
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horizontal fast_bilinear MMX2 scaler reads 1-7 samples too much (might cause a sig11)
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Supported output formats BGR15 BGR16 BGR24 BGR32 YV12
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BGR15 & BGR16 MMX verions support dithering
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Special versions: fast Y 1:1 scaling (no interpolation in y direction)
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TODO
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more intelligent missalignment avoidance for the horizontal scaler
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dither in C
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change the distance of the u & v buffer
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Move static / global vars into a struct so multiple scalers can be used
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write special vertical cubic upscale version
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Optimize C code (yv12 / minmax)
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dstStride[3]
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*/
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#define ABS(a) ((a) > 0 ? (a) : (-(a)))
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#define MIN(a,b) ((a) > (b) ? (b) : (a))
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#define MAX(a,b) ((a) < (b) ? (b) : (a))
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#ifdef ARCH_X86
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#define CAN_COMPILE_X86_ASM
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#endif
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#ifdef CAN_COMPILE_X86_ASM
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static uint64_t __attribute__((aligned(8))) yCoeff= 0x2568256825682568LL;
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static uint64_t __attribute__((aligned(8))) vrCoeff= 0x3343334333433343LL;
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static uint64_t __attribute__((aligned(8))) ubCoeff= 0x40cf40cf40cf40cfLL;
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static uint64_t __attribute__((aligned(8))) vgCoeff= 0xE5E2E5E2E5E2E5E2LL;
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static uint64_t __attribute__((aligned(8))) ugCoeff= 0xF36EF36EF36EF36ELL;
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static uint64_t __attribute__((aligned(8))) bF8= 0xF8F8F8F8F8F8F8F8LL;
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static uint64_t __attribute__((aligned(8))) bFC= 0xFCFCFCFCFCFCFCFCLL;
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static uint64_t __attribute__((aligned(8))) w400= 0x0400040004000400LL;
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static uint64_t __attribute__((aligned(8))) w80= 0x0080008000800080LL;
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static uint64_t __attribute__((aligned(8))) w10= 0x0010001000100010LL;
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static uint64_t __attribute__((aligned(8))) w02= 0x0002000200020002LL;
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static uint64_t __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
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static uint64_t __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
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static uint64_t __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
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static volatile uint64_t __attribute__((aligned(8))) b5Dither;
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static volatile uint64_t __attribute__((aligned(8))) g5Dither;
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static volatile uint64_t __attribute__((aligned(8))) g6Dither;
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static volatile uint64_t __attribute__((aligned(8))) r5Dither;
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static uint64_t __attribute__((aligned(8))) dither4[2]={
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0x0103010301030103LL,
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0x0200020002000200LL,};
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static uint64_t __attribute__((aligned(8))) dither8[2]={
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0x0602060206020602LL,
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0x0004000400040004LL,};
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static uint64_t __attribute__((aligned(8))) b16Mask= 0x001F001F001F001FLL;
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static uint64_t __attribute__((aligned(8))) g16Mask= 0x07E007E007E007E0LL;
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static uint64_t __attribute__((aligned(8))) r16Mask= 0xF800F800F800F800LL;
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static uint64_t __attribute__((aligned(8))) b15Mask= 0x001F001F001F001FLL;
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static uint64_t __attribute__((aligned(8))) g15Mask= 0x03E003E003E003E0LL;
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static uint64_t __attribute__((aligned(8))) r15Mask= 0x7C007C007C007C00LL;
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static uint64_t __attribute__((aligned(8))) M24A= 0x00FF0000FF0000FFLL;
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static uint64_t __attribute__((aligned(8))) M24B= 0xFF0000FF0000FF00LL;
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static uint64_t __attribute__((aligned(8))) M24C= 0x0000FF0000FF0000LL;
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static uint64_t __attribute__((aligned(8))) temp0;
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static uint64_t __attribute__((aligned(8))) asm_yalpha1;
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static uint64_t __attribute__((aligned(8))) asm_uvalpha1;
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static int16_t __attribute__((aligned(8))) *lumPixBuf[2000];
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static int16_t __attribute__((aligned(8))) *chrPixBuf[2000];
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static int16_t __attribute__((aligned(8))) hLumFilter[8000];
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static int16_t __attribute__((aligned(8))) hLumFilterPos[2000];
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static int16_t __attribute__((aligned(8))) hChrFilter[8000];
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static int16_t __attribute__((aligned(8))) hChrFilterPos[2000];
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static int16_t __attribute__((aligned(8))) vLumFilter[8000];
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static int16_t __attribute__((aligned(8))) vLumFilterPos[2000];
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static int16_t __attribute__((aligned(8))) vChrFilter[8000];
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static int16_t __attribute__((aligned(8))) vChrFilterPos[2000];
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// Contain simply the values from v(Lum|Chr)Filter just nicely packed for mmx
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//FIXME these are very likely too small / 8000 caused problems with 480x480
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static int16_t __attribute__((aligned(8))) lumMmxFilter[16000];
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static int16_t __attribute__((aligned(8))) chrMmxFilter[16000];
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#else
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static int16_t *lumPixBuf[2000];
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static int16_t *chrPixBuf[2000];
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static int16_t hLumFilter[8000];
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static int16_t hLumFilterPos[2000];
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static int16_t hChrFilter[8000];
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static int16_t hChrFilterPos[2000];
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static int16_t vLumFilter[8000];
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static int16_t vLumFilterPos[2000];
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static int16_t vChrFilter[8000];
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static int16_t vChrFilterPos[2000];
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//FIXME just dummy vars
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static int16_t lumMmxFilter[1];
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static int16_t chrMmxFilter[1];
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#endif
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// clipping helper table for C implementations:
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static unsigned char clip_table[768];
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static unsigned short clip_table16b[768];
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static unsigned short clip_table16g[768];
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static unsigned short clip_table16r[768];
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static unsigned short clip_table15b[768];
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static unsigned short clip_table15g[768];
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static unsigned short clip_table15r[768];
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// yuv->rgb conversion tables:
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static int yuvtab_2568[256];
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static int yuvtab_3343[256];
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static int yuvtab_0c92[256];
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static int yuvtab_1a1e[256];
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static int yuvtab_40cf[256];
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// Needed for cubic scaler to catch overflows
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static int clip_yuvtab_2568[768];
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static int clip_yuvtab_3343[768];
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static int clip_yuvtab_0c92[768];
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static int clip_yuvtab_1a1e[768];
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static int clip_yuvtab_40cf[768];
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static int hLumFilterSize=0;
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static int hChrFilterSize=0;
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static int vLumFilterSize=0;
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static int vChrFilterSize=0;
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static int vLumBufSize=0;
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static int vChrBufSize=0;
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int sws_flags=0;
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#ifdef CAN_COMPILE_X86_ASM
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static uint8_t funnyYCode[10000];
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static uint8_t funnyUVCode[10000];
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#endif
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static int canMMX2BeUsed=0;
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#ifdef CAN_COMPILE_X86_ASM
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void in_asm_used_var_warning_killer()
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{
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volatile int i= yCoeff+vrCoeff+ubCoeff+vgCoeff+ugCoeff+bF8+bFC+w400+w80+w10+
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bm00001111+bm00000111+bm11111000+b16Mask+g16Mask+r16Mask+b15Mask+g15Mask+r15Mask+temp0+asm_yalpha1+ asm_uvalpha1+
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M24A+M24B+M24C+w02 + funnyYCode[0]+ funnyUVCode[0]+b5Dither+g5Dither+r5Dither+g6Dither+dither4[0]+dither8[0];
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if(i) i=0;
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}
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#endif
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static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
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int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
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uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW)
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{
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//FIXME Optimize (just quickly writen not opti..)
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int i;
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for(i=0; i<dstW; i++)
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{
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int val=0;
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int j;
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for(j=0; j<lumFilterSize; j++)
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val += lumSrc[j][i] * lumFilter[j];
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dest[i]= MIN(MAX(val>>19, 0), 255);
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}
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if(uDest != NULL)
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for(i=0; i<(dstW>>1); i++)
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{
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int u=0;
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int v=0;
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int j;
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for(j=0; j<lumFilterSize; j++)
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{
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u += chrSrc[j][i] * chrFilter[j];
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v += chrSrc[j][i + 2048] * chrFilter[j];
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}
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uDest[i]= MIN(MAX(u>>19, 0), 255);
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vDest[i]= MIN(MAX(v>>19, 0), 255);
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}
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}
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static inline void yuv2rgbXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
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int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
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uint8_t *dest, int dstW, int dstbpp)
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{
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if(dstbpp==32)
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{
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int i;
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for(i=0; i<(dstW>>1); i++){
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int j;
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int Y1=0;
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int Y2=0;
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int U=0;
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int V=0;
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int Cb, Cr, Cg;
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for(j=0; j<lumFilterSize; j++)
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{
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Y1 += lumSrc[j][2*i] * lumFilter[j];
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Y2 += lumSrc[j][2*i+1] * lumFilter[j];
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}
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for(j=0; j<chrFilterSize; j++)
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{
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U += chrSrc[j][i] * chrFilter[j];
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V += chrSrc[j][i+2048] * chrFilter[j];
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}
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Y1= clip_yuvtab_2568[ (Y1>>19) + 256 ];
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Y2= clip_yuvtab_2568[ (Y2>>19) + 256 ];
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U >>= 19;
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V >>= 19;
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Cb= clip_yuvtab_40cf[U+ 256];
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Cg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];
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Cr= clip_yuvtab_3343[V+ 256];
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dest[8*i+0]=clip_table[((Y1 + Cb) >>13)];
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dest[8*i+1]=clip_table[((Y1 + Cg) >>13)];
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dest[8*i+2]=clip_table[((Y1 + Cr) >>13)];
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dest[8*i+4]=clip_table[((Y2 + Cb) >>13)];
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dest[8*i+5]=clip_table[((Y2 + Cg) >>13)];
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dest[8*i+6]=clip_table[((Y2 + Cr) >>13)];
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}
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}
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else if(dstbpp==24)
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{
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int i;
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for(i=0; i<(dstW>>1); i++){
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int j;
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int Y1=0;
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int Y2=0;
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int U=0;
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int V=0;
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int Cb, Cr, Cg;
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for(j=0; j<lumFilterSize; j++)
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{
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Y1 += lumSrc[j][2*i] * lumFilter[j];
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Y2 += lumSrc[j][2*i+1] * lumFilter[j];
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}
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for(j=0; j<chrFilterSize; j++)
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{
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U += chrSrc[j][i] * chrFilter[j];
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V += chrSrc[j][i+2048] * chrFilter[j];
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}
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Y1= clip_yuvtab_2568[ (Y1>>19) + 256 ];
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Y2= clip_yuvtab_2568[ (Y2>>19) + 256 ];
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U >>= 19;
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V >>= 19;
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Cb= clip_yuvtab_40cf[U+ 256];
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Cg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];
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Cr= clip_yuvtab_3343[V+ 256];
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dest[0]=clip_table[((Y1 + Cb) >>13)];
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dest[1]=clip_table[((Y1 + Cg) >>13)];
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dest[2]=clip_table[((Y1 + Cr) >>13)];
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dest[3]=clip_table[((Y2 + Cb) >>13)];
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dest[4]=clip_table[((Y2 + Cg) >>13)];
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dest[5]=clip_table[((Y2 + Cr) >>13)];
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dest+=6;
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}
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}
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else if(dstbpp==16)
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{
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int i;
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for(i=0; i<(dstW>>1); i++){
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int j;
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int Y1=0;
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int Y2=0;
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int U=0;
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int V=0;
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int Cb, Cr, Cg;
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for(j=0; j<lumFilterSize; j++)
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{
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Y1 += lumSrc[j][2*i] * lumFilter[j];
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Y2 += lumSrc[j][2*i+1] * lumFilter[j];
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}
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for(j=0; j<chrFilterSize; j++)
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{
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U += chrSrc[j][i] * chrFilter[j];
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V += chrSrc[j][i+2048] * chrFilter[j];
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}
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Y1= clip_yuvtab_2568[ (Y1>>19) + 256 ];
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Y2= clip_yuvtab_2568[ (Y2>>19) + 256 ];
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U >>= 19;
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V >>= 19;
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Cb= clip_yuvtab_40cf[U+ 256];
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Cg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];
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Cr= clip_yuvtab_3343[V+ 256];
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((uint16_t*)dest)[2*i] =
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clip_table16b[(Y1 + Cb) >>13] |
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clip_table16g[(Y1 + Cg) >>13] |
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clip_table16r[(Y1 + Cr) >>13];
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((uint16_t*)dest)[2*i+1] =
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clip_table16b[(Y2 + Cb) >>13] |
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clip_table16g[(Y2 + Cg) >>13] |
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clip_table16r[(Y2 + Cr) >>13];
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}
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}
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else if(dstbpp==15)
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{
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int i;
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for(i=0; i<(dstW>>1); i++){
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int j;
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int Y1=0;
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int Y2=0;
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int U=0;
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int V=0;
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int Cb, Cr, Cg;
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for(j=0; j<lumFilterSize; j++)
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{
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Y1 += lumSrc[j][2*i] * lumFilter[j];
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Y2 += lumSrc[j][2*i+1] * lumFilter[j];
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}
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for(j=0; j<chrFilterSize; j++)
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{
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U += chrSrc[j][i] * chrFilter[j];
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V += chrSrc[j][i+2048] * chrFilter[j];
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}
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Y1= clip_yuvtab_2568[ (Y1>>19) + 256 ];
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Y2= clip_yuvtab_2568[ (Y2>>19) + 256 ];
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U >>= 19;
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V >>= 19;
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Cb= clip_yuvtab_40cf[U+ 256];
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Cg= clip_yuvtab_1a1e[V+ 256] + yuvtab_0c92[U+ 256];
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Cr= clip_yuvtab_3343[V+ 256];
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((uint16_t*)dest)[2*i] =
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clip_table15b[(Y1 + Cb) >>13] |
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clip_table15g[(Y1 + Cg) >>13] |
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clip_table15r[(Y1 + Cr) >>13];
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((uint16_t*)dest)[2*i+1] =
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clip_table15b[(Y2 + Cb) >>13] |
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clip_table15g[(Y2 + Cg) >>13] |
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clip_table15r[(Y2 + Cr) >>13];
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}
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}
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}
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//Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
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//Plain C versions
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#if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT)
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#define COMPILE_C
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#endif
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#ifdef CAN_COMPILE_X86_ASM
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#if (defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
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#define COMPILE_MMX
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#endif
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#if defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)
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#define COMPILE_MMX2
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#endif
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#if (defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
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#define COMPILE_3DNOW
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#endif
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#endif //CAN_COMPILE_X86_ASM
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#undef HAVE_MMX
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#undef HAVE_MMX2
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#undef HAVE_3DNOW
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#undef ARCH_X86
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#ifdef COMPILE_C
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#undef HAVE_MMX
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#undef HAVE_MMX2
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#undef HAVE_3DNOW
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#undef ARCH_X86
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#define RENAME(a) a ## _C
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#include "swscale_template.c"
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#endif
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#ifdef CAN_COMPILE_X86_ASM
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//X86 versions
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/*
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#undef RENAME
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#undef HAVE_MMX
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#undef HAVE_MMX2
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#undef HAVE_3DNOW
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#define ARCH_X86
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#define RENAME(a) a ## _X86
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#include "swscale_template.c"
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*/
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//MMX versions
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#ifdef COMPILE_MMX
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#undef RENAME
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#define HAVE_MMX
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#undef HAVE_MMX2
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#undef HAVE_3DNOW
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#define ARCH_X86
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#define RENAME(a) a ## _MMX
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#include "swscale_template.c"
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#endif
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//MMX2 versions
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#ifdef COMPILE_MMX2
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#undef RENAME
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#define HAVE_MMX
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#define HAVE_MMX2
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#undef HAVE_3DNOW
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#define ARCH_X86
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#define RENAME(a) a ## _MMX2
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#include "swscale_template.c"
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#endif
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//3DNOW versions
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#ifdef COMPILE_3DNOW
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#undef RENAME
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#define HAVE_MMX
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#undef HAVE_MMX2
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#define HAVE_3DNOW
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#define ARCH_X86
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#define RENAME(a) a ## _3DNow
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#include "swscale_template.c"
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#endif
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#endif //CAN_COMPILE_X86_ASM
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// minor note: the HAVE_xyz is messed up after that line so dont use it
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// *** bilinear scaling and yuv->rgb or yuv->yuv conversion of yv12 slices:
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// *** Note: it's called multiple times while decoding a frame, first time y==0
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// switching the cpu type during a sliced drawing can have bad effects, like sig11
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void SwScale_YV12slice(unsigned char* srcptr[],int stride[], int srcSliceY ,
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int srcSliceH, uint8_t* dstptr[], int dststride, int dstbpp,
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int srcW, int srcH, int dstW, int dstH){
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#ifdef RUNTIME_CPUDETECT
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#ifdef CAN_COMPILE_X86_ASM
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// ordered per speed fasterst first
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if(gCpuCaps.hasMMX2)
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SwScale_YV12slice_MMX2(srcptr, stride, srcSliceY, srcSliceH, dstptr, dststride, dstbpp, srcW, srcH, dstW, dstH);
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else if(gCpuCaps.has3DNow)
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SwScale_YV12slice_3DNow(srcptr, stride, srcSliceY, srcSliceH, dstptr, dststride, dstbpp, srcW, srcH, dstW, dstH);
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else if(gCpuCaps.hasMMX)
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SwScale_YV12slice_MMX(srcptr, stride, srcSliceY, srcSliceH, dstptr, dststride, dstbpp, srcW, srcH, dstW, dstH);
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else
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SwScale_YV12slice_C(srcptr, stride, srcSliceY, srcSliceH, dstptr, dststride, dstbpp, srcW, srcH, dstW, dstH);
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#else
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SwScale_YV12slice_C(srcptr, stride, srcSliceY, srcSliceH, dstptr, dststride, dstbpp, srcW, srcH, dstW, dstH);
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#endif
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#else //RUNTIME_CPUDETECT
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#ifdef HAVE_MMX2
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SwScale_YV12slice_MMX2(srcptr, stride, srcSliceY, srcSliceH, dstptr, dststride, dstbpp, srcW, srcH, dstW, dstH);
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#elif defined (HAVE_3DNOW)
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SwScale_YV12slice_3DNow(srcptr, stride, srcSliceY, srcSliceH, dstptr, dststride, dstbpp, srcW, srcH, dstW, dstH);
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#elif defined (HAVE_MMX)
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SwScale_YV12slice_MMX(srcptr, stride, srcSliceY, srcSliceH, dstptr, dststride, dstbpp, srcW, srcH, dstW, dstH);
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#else
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SwScale_YV12slice_C(srcptr, stride, srcSliceY, srcSliceH, dstptr, dststride, dstbpp, srcW, srcH, dstW, dstH);
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#endif
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#endif //!RUNTIME_CPUDETECT
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}
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void SwScale_Init(){
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// generating tables:
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int i;
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for(i=0; i<768; i++){
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int c= MIN(MAX(i-256, 0), 255);
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clip_table[i]=c;
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yuvtab_2568[c]= clip_yuvtab_2568[i]=(0x2568*(c-16))+(256<<13);
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yuvtab_3343[c]= clip_yuvtab_3343[i]=0x3343*(c-128);
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yuvtab_0c92[c]= clip_yuvtab_0c92[i]=-0x0c92*(c-128);
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yuvtab_1a1e[c]= clip_yuvtab_1a1e[i]=-0x1a1e*(c-128);
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yuvtab_40cf[c]= clip_yuvtab_40cf[i]=0x40cf*(c-128);
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}
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for(i=0; i<768; i++)
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{
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int v= clip_table[i];
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clip_table16b[i]= v>>3;
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clip_table16g[i]= (v<<3)&0x07E0;
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clip_table16r[i]= (v<<8)&0xF800;
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clip_table15b[i]= v>>3;
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clip_table15g[i]= (v<<2)&0x03E0;
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clip_table15r[i]= (v<<7)&0x7C00;
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}
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}
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