📄 yuv2rgb_altivec.c.svn-base
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instrides_scl[1] = instrides[1]-w/2; /* the loop moves ui by w/2 */ \ instrides_scl[2] = instrides[2]-w/2; /* the loop moves vi by w/2 */ \ \ \ for (i=0;i<h/2;i++) { \ vec_dstst (outo, (0x02000002|(((w*3+32)/32)<<16)), 0); \ vec_dstst (oute, (0x02000002|(((w*3+32)/32)<<16)), 1); \ \ for (j=0;j<w/16;j++) { \ \ y1ivP = (vector unsigned char *)y1i; \ y2ivP = (vector unsigned char *)y2i; \ uivP = (vector unsigned char *)ui; \ vivP = (vector unsigned char *)vi; \ \ align_perm = vec_lvsl (0, y1i); \ y0 = (vector unsigned char) \ vec_perm (y1ivP[0], y1ivP[1], align_perm); \ \ align_perm = vec_lvsl (0, y2i); \ y1 = (vector unsigned char) \ vec_perm (y2ivP[0], y2ivP[1], align_perm); \ \ align_perm = vec_lvsl (0, ui); \ u = (vector signed char) \ vec_perm (uivP[0], uivP[1], align_perm); \ \ align_perm = vec_lvsl (0, vi); \ v = (vector signed char) \ vec_perm (vivP[0], vivP[1], align_perm); \ \ u = (vector signed char) \ vec_sub (u,(vector signed char) \ vec_splat((vector signed char)AVV(128),0)); \ v = (vector signed char) \ vec_sub (v,(vector signed char) \ vec_splat((vector signed char)AVV(128),0)); \ \ U = vec_unpackh (u); \ V = vec_unpackh (v); \ \ \ Y0 = vec_unh (y0); \ Y1 = vec_unl (y0); \ Y2 = vec_unh (y1); \ Y3 = vec_unl (y1); \ \ Y0 = vec_mradds (Y0, lCY, lOY); \ Y1 = vec_mradds (Y1, lCY, lOY); \ Y2 = vec_mradds (Y2, lCY, lOY); \ Y3 = vec_mradds (Y3, lCY, lOY); \ \ /* ux = (CBU*(u<<CSHIFT)+0x4000)>>15 */ \ ux = vec_sl (U, lCSHIFT); \ ux = vec_mradds (ux, lCBU, (vector signed short)AVV(0)); \ ux0 = vec_mergeh (ux,ux); \ ux1 = vec_mergel (ux,ux); \ \ /* vx = (CRV*(v<<CSHIFT)+0x4000)>>15; */ \ vx = vec_sl (V, lCSHIFT); \ vx = vec_mradds (vx, lCRV, (vector signed short)AVV(0)); \ vx0 = vec_mergeh (vx,vx); \ vx1 = vec_mergel (vx,vx); \ \ /* uvx = ((CGU*u) + (CGV*v))>>15 */ \ uvx = vec_mradds (U, lCGU, (vector signed short)AVV(0)); \ uvx = vec_mradds (V, lCGV, uvx); \ uvx0 = vec_mergeh (uvx,uvx); \ uvx1 = vec_mergel (uvx,uvx); \ \ R0 = vec_add (Y0,vx0); \ G0 = vec_add (Y0,uvx0); \ B0 = vec_add (Y0,ux0); \ R1 = vec_add (Y1,vx1); \ G1 = vec_add (Y1,uvx1); \ B1 = vec_add (Y1,ux1); \ \ R = vec_packclp (R0,R1); \ G = vec_packclp (G0,G1); \ B = vec_packclp (B0,B1); \ \ out_pixels(R,G,B,oute); \ \ R0 = vec_add (Y2,vx0); \ G0 = vec_add (Y2,uvx0); \ B0 = vec_add (Y2,ux0); \ R1 = vec_add (Y3,vx1); \ G1 = vec_add (Y3,uvx1); \ B1 = vec_add (Y3,ux1); \ R = vec_packclp (R0,R1); \ G = vec_packclp (G0,G1); \ B = vec_packclp (B0,B1); \ \ \ out_pixels(R,G,B,outo); \ \ y1i += 16; \ y2i += 16; \ ui += 8; \ vi += 8; \ \ } \ \ outo += (outstrides[0])>>4; \ oute += (outstrides[0])>>4; \ \ ui += instrides_scl[1]; \ vi += instrides_scl[2]; \ y1i += instrides_scl[0]; \ y2i += instrides_scl[0]; \ } \ return srcSliceH; \}#define out_abgr(a,b,c,ptr) vec_mstrgb32(typeof(a),((typeof (a))AVV(0)),c,b,a,ptr)#define out_bgra(a,b,c,ptr) vec_mstrgb32(typeof(a),c,b,a,((typeof (a))AVV(0)),ptr)#define out_rgba(a,b,c,ptr) vec_mstrgb32(typeof(a),a,b,c,((typeof (a))AVV(0)),ptr)#define out_argb(a,b,c,ptr) vec_mstrgb32(typeof(a),((typeof (a))AVV(0)),a,b,c,ptr)#define out_rgb24(a,b,c,ptr) vec_mstrgb24(a,b,c,ptr)#define out_bgr24(a,b,c,ptr) vec_mstbgr24(a,b,c,ptr)DEFCSP420_CVT (yuv2_abgr, out_abgr)#if 1DEFCSP420_CVT (yuv2_bgra, out_bgra)#elsestatic int altivec_yuv2_bgra32 (SwsContext *c, unsigned char **in, int *instrides, int srcSliceY, int srcSliceH, unsigned char **oplanes, int *outstrides){ int w = c->srcW; int h = srcSliceH; int i,j; int instrides_scl[3]; vector unsigned char y0,y1; vector signed char u,v; vector signed short Y0,Y1,Y2,Y3; vector signed short U,V; vector signed short vx,ux,uvx; vector signed short vx0,ux0,uvx0; vector signed short vx1,ux1,uvx1; vector signed short R0,G0,B0; vector signed short R1,G1,B1; vector unsigned char R,G,B; vector unsigned char *uivP, *vivP; vector unsigned char align_perm; vector signed short lCY = c->CY, lOY = c->OY, lCRV = c->CRV, lCBU = c->CBU, lCGU = c->CGU, lCGV = c->CGV; vector unsigned short lCSHIFT = c->CSHIFT; ubyte *y1i = in[0]; ubyte *y2i = in[0]+w; ubyte *ui = in[1]; ubyte *vi = in[2]; vector unsigned char *oute = (vector unsigned char *) (oplanes[0]+srcSliceY*outstrides[0]); vector unsigned char *outo = (vector unsigned char *) (oplanes[0]+srcSliceY*outstrides[0]+outstrides[0]); instrides_scl[0] = instrides[0]; instrides_scl[1] = instrides[1]-w/2; /* the loop moves ui by w/2 */ instrides_scl[2] = instrides[2]-w/2; /* the loop moves vi by w/2 */ for (i=0;i<h/2;i++) { vec_dstst (outo, (0x02000002|(((w*3+32)/32)<<16)), 0); vec_dstst (oute, (0x02000002|(((w*3+32)/32)<<16)), 1); for (j=0;j<w/16;j++) { y0 = vec_ldl (0,y1i); y1 = vec_ldl (0,y2i); uivP = (vector unsigned char *)ui; vivP = (vector unsigned char *)vi; align_perm = vec_lvsl (0, ui); u = (vector signed char)vec_perm (uivP[0], uivP[1], align_perm); align_perm = vec_lvsl (0, vi); v = (vector signed char)vec_perm (vivP[0], vivP[1], align_perm); u = (vector signed char) vec_sub (u,(vector signed char) vec_splat((vector signed char)AVV(128),0)); v = (vector signed char) vec_sub (v, (vector signed char) vec_splat((vector signed char)AVV(128),0)); U = vec_unpackh (u); V = vec_unpackh (v); Y0 = vec_unh (y0); Y1 = vec_unl (y0); Y2 = vec_unh (y1); Y3 = vec_unl (y1); Y0 = vec_mradds (Y0, lCY, lOY); Y1 = vec_mradds (Y1, lCY, lOY); Y2 = vec_mradds (Y2, lCY, lOY); Y3 = vec_mradds (Y3, lCY, lOY); /* ux = (CBU*(u<<CSHIFT)+0x4000)>>15 */ ux = vec_sl (U, lCSHIFT); ux = vec_mradds (ux, lCBU, (vector signed short)AVV(0)); ux0 = vec_mergeh (ux,ux); ux1 = vec_mergel (ux,ux); /* vx = (CRV*(v<<CSHIFT)+0x4000)>>15; */ vx = vec_sl (V, lCSHIFT); vx = vec_mradds (vx, lCRV, (vector signed short)AVV(0)); vx0 = vec_mergeh (vx,vx); vx1 = vec_mergel (vx,vx); /* uvx = ((CGU*u) + (CGV*v))>>15 */ uvx = vec_mradds (U, lCGU, (vector signed short)AVV(0)); uvx = vec_mradds (V, lCGV, uvx); uvx0 = vec_mergeh (uvx,uvx); uvx1 = vec_mergel (uvx,uvx); R0 = vec_add (Y0,vx0); G0 = vec_add (Y0,uvx0); B0 = vec_add (Y0,ux0); R1 = vec_add (Y1,vx1); G1 = vec_add (Y1,uvx1); B1 = vec_add (Y1,ux1); R = vec_packclp (R0,R1); G = vec_packclp (G0,G1); B = vec_packclp (B0,B1); out_argb(R,G,B,oute); R0 = vec_add (Y2,vx0); G0 = vec_add (Y2,uvx0); B0 = vec_add (Y2,ux0); R1 = vec_add (Y3,vx1); G1 = vec_add (Y3,uvx1); B1 = vec_add (Y3,ux1); R = vec_packclp (R0,R1); G = vec_packclp (G0,G1); B = vec_packclp (B0,B1); out_argb(R,G,B,outo); y1i += 16; y2i += 16; ui += 8; vi += 8; } outo += (outstrides[0])>>4; oute += (outstrides[0])>>4; ui += instrides_scl[1]; vi += instrides_scl[2]; y1i += instrides_scl[0]; y2i += instrides_scl[0]; } return srcSliceH;}#endifDEFCSP420_CVT (yuv2_rgba, out_rgba)DEFCSP420_CVT (yuv2_argb, out_argb)DEFCSP420_CVT (yuv2_rgb24, out_rgb24)DEFCSP420_CVT (yuv2_bgr24, out_bgr24)// uyvy|uyvy|uyvy|uyvy// 0123 4567 89ab cdefstaticconst vector unsigned char demux_u = (const vector unsigned char)AVV(0x10,0x00,0x10,0x00, 0x10,0x04,0x10,0x04, 0x10,0x08,0x10,0x08, 0x10,0x0c,0x10,0x0c), demux_v = (const vector unsigned char)AVV(0x10,0x02,0x10,0x02, 0x10,0x06,0x10,0x06, 0x10,0x0A,0x10,0x0A, 0x10,0x0E,0x10,0x0E), demux_y = (const vector unsigned char)AVV(0x10,0x01,0x10,0x03, 0x10,0x05,0x10,0x07, 0x10,0x09,0x10,0x0B, 0x10,0x0D,0x10,0x0F);/* this is so I can play live CCIR raw video*/static int altivec_uyvy_rgb32 (SwsContext *c, unsigned char **in, int *instrides, int srcSliceY, int srcSliceH, unsigned char **oplanes, int *outstrides){ int w = c->srcW; int h = srcSliceH; int i,j; vector unsigned char uyvy; vector signed short Y,U,V; vector signed short R0,G0,B0,R1,G1,B1; vector unsigned char R,G,B; vector unsigned char *out; ubyte *img; img = in[0]; out = (vector unsigned char *)(oplanes[0]+srcSliceY*outstrides[0]); for (i=0;i<h;i++) { for (j=0;j<w/16;j++) { uyvy = vec_ld (0, img);⌨️ 快捷键说明
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