mirror of
https://github.com/mpv-player/mpv
synced 2024-12-28 10:02:17 +00:00
32646569d9
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3137 b3059339-0415-0410-9bf9-f77b7e298cf2
246 lines
7.7 KiB
C
246 lines
7.7 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 "../config.h"
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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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/*
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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 MMX2 scaler reads 1-7 samples too much (might cause a sig11)
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Supported output formats BGR15 BGR16 BGR24 BGR32
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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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bicubic scaler
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dither in C
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change the distance of the u & v buffer
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how to differenciate between x86 an C at runtime ?! (using C for now)
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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))) 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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// temporary storage for 4 yuv lines:
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// 16bit for now (mmx likes it more compact)
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static uint16_t __attribute__((aligned(8))) pix_buf_y[4][2048];
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static uint16_t __attribute__((aligned(8))) pix_buf_uv[2][2048*2];
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#else
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static uint16_t pix_buf_y[4][2048];
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static uint16_t pix_buf_uv[2][2048*2];
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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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#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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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;
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if(i) i=0;
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}
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#endif
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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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#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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#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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#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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//MMX2 versions
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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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//3DNOW versions
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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 //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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// *** Designed to upscale, but may work for downscale too.
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// s_xinc = (src_width << 16) / dst_width
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// s_yinc = (src_height << 16) / dst_height
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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 y, int h,
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uint8_t* dstptr[], int dststride, int dstw, int dstbpp,
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unsigned int s_xinc,unsigned int s_yinc){
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// scaling factors:
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//static int s_yinc=(vo_dga_src_height<<16)/vo_dga_vp_height;
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//static int s_xinc=(vo_dga_src_width<<8)/vo_dga_vp_width;
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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, y, h, dstptr, dststride, dstw, dstbpp, s_xinc, s_yinc);
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else if(gCpuCaps.has3DNow)
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SwScale_YV12slice_3DNow(srcptr, stride, y, h, dstptr, dststride, dstw, dstbpp, s_xinc, s_yinc);
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else if(gCpuCaps.hasMMX)
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SwScale_YV12slice_MMX(srcptr, stride, y, h, dstptr, dststride, dstw, dstbpp, s_xinc, s_yinc);
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else
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SwScale_YV12slice_C(srcptr, stride, y, h, dstptr, dststride, dstw, dstbpp, s_xinc, s_yinc);
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#else
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SwScale_YV12slice_C(srcptr, stride, y, h, dstptr, dststride, dstw, dstbpp, s_xinc, s_yinc);
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#endif
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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<256;i++){
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clip_table[i]=0;
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clip_table[i+256]=i;
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clip_table[i+512]=255;
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yuvtab_2568[i]=(0x2568*(i-16))+(256<<13);
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yuvtab_3343[i]=0x3343*(i-128);
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yuvtab_0c92[i]=-0x0c92*(i-128);
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yuvtab_1a1e[i]=-0x1a1e*(i-128);
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yuvtab_40cf[i]=0x40cf*(i-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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