diff options
Diffstat (limited to 'libswscale/ppc/yuv2rgb_altivec.c')
-rw-r--r-- | libswscale/ppc/yuv2rgb_altivec.c | 962 |
1 files changed, 962 insertions, 0 deletions
diff --git a/libswscale/ppc/yuv2rgb_altivec.c b/libswscale/ppc/yuv2rgb_altivec.c new file mode 100644 index 0000000..dc5894c --- /dev/null +++ b/libswscale/ppc/yuv2rgb_altivec.c @@ -0,0 +1,962 @@ +/* + * AltiVec acceleration for colorspace conversion + * + * copyright (C) 2004 Marc Hoffman <marc.hoffman@analog.com> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser 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 + */ + +/* +Convert I420 YV12 to RGB in various formats, + it rejects images that are not in 420 formats, + it rejects images that don't have widths of multiples of 16, + it rejects images that don't have heights of multiples of 2. +Reject defers to C simulation code. + +Lots of optimizations to be done here. + +1. Need to fix saturation code. I just couldn't get it to fly with packs + and adds, so we currently use max/min to clip. + +2. The inefficient use of chroma loading needs a bit of brushing up. + +3. Analysis of pipeline stalls needs to be done. Use shark to identify + pipeline stalls. + + +MODIFIED to calculate coeffs from currently selected color space. +MODIFIED core to be a macro where you specify the output format. +ADDED UYVY conversion which is never called due to some thing in swscale. +CORRECTED algorithim selection to be strict on input formats. +ADDED runtime detection of AltiVec. + +ADDED altivec_yuv2packedX vertical scl + RGB converter + +March 27,2004 +PERFORMANCE ANALYSIS + +The C version uses 25% of the processor or ~250Mips for D1 video rawvideo +used as test. +The AltiVec version uses 10% of the processor or ~100Mips for D1 video +same sequence. + +720 * 480 * 30 ~10MPS + +so we have roughly 10 clocks per pixel. This is too high, something has +to be wrong. + +OPTIMIZED clip codes to utilize vec_max and vec_packs removing the +need for vec_min. + +OPTIMIZED DST OUTPUT cache/DMA controls. We are pretty much guaranteed to have +the input video frame, it was just decompressed so it probably resides in L1 +caches. However, we are creating the output video stream. This needs to use the +DSTST instruction to optimize for the cache. We couple this with the fact that +we are not going to be visiting the input buffer again so we mark it Least +Recently Used. This shaves 25% of the processor cycles off. + +Now memcpy is the largest mips consumer in the system, probably due +to the inefficient X11 stuff. + +GL libraries seem to be very slow on this machine 1.33Ghz PB running +Jaguar, this is not the case for my 1Ghz PB. I thought it might be +a versioning issue, however I have libGL.1.2.dylib for both +machines. (We need to figure this out now.) + +GL2 libraries work now with patch for RGB32. + +NOTE: quartz vo driver ARGB32_to_RGB24 consumes 30% of the processor. + +Integrated luma prescaling adjustment for saturation/contrast/brightness +adjustment. +*/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <inttypes.h> +#include <assert.h> +#include "config.h" +#include "libswscale/rgb2rgb.h" +#include "libswscale/swscale.h" +#include "libswscale/swscale_internal.h" + +#undef PROFILE_THE_BEAST +#undef INC_SCALING + +typedef unsigned char ubyte; +typedef signed char sbyte; + + +/* RGB interleaver, 16 planar pels 8-bit samples per channel in + homogeneous vector registers x0,x1,x2 are interleaved with the + following technique: + + o0 = vec_mergeh (x0,x1); + o1 = vec_perm (o0, x2, perm_rgb_0); + o2 = vec_perm (o0, x2, perm_rgb_1); + o3 = vec_mergel (x0,x1); + o4 = vec_perm (o3,o2,perm_rgb_2); + o5 = vec_perm (o3,o2,perm_rgb_3); + + perm_rgb_0: o0(RG).h v1(B) --> o1* + 0 1 2 3 4 + rgbr|gbrg|brgb|rgbr + 0010 0100 1001 0010 + 0102 3145 2673 894A + + perm_rgb_1: o0(RG).h v1(B) --> o2 + 0 1 2 3 4 + gbrg|brgb|bbbb|bbbb + 0100 1001 1111 1111 + B5CD 6EF7 89AB CDEF + + perm_rgb_2: o3(RG).l o2(rgbB.l) --> o4* + 0 1 2 3 4 + gbrg|brgb|rgbr|gbrg + 1111 1111 0010 0100 + 89AB CDEF 0182 3945 + + perm_rgb_2: o3(RG).l o2(rgbB.l) ---> o5* + 0 1 2 3 4 + brgb|rgbr|gbrg|brgb + 1001 0010 0100 1001 + a67b 89cA BdCD eEFf + +*/ +static +const vector unsigned char + perm_rgb_0 = {0x00,0x01,0x10,0x02,0x03,0x11,0x04,0x05, + 0x12,0x06,0x07,0x13,0x08,0x09,0x14,0x0a}, + perm_rgb_1 = {0x0b,0x15,0x0c,0x0d,0x16,0x0e,0x0f,0x17, + 0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f}, + perm_rgb_2 = {0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17, + 0x00,0x01,0x18,0x02,0x03,0x19,0x04,0x05}, + perm_rgb_3 = {0x1a,0x06,0x07,0x1b,0x08,0x09,0x1c,0x0a, + 0x0b,0x1d,0x0c,0x0d,0x1e,0x0e,0x0f,0x1f}; + +#define vec_merge3(x2,x1,x0,y0,y1,y2) \ +do { \ + __typeof__(x0) o0,o2,o3; \ + o0 = vec_mergeh (x0,x1); \ + y0 = vec_perm (o0, x2, perm_rgb_0); \ + o2 = vec_perm (o0, x2, perm_rgb_1); \ + o3 = vec_mergel (x0,x1); \ + y1 = vec_perm (o3,o2,perm_rgb_2); \ + y2 = vec_perm (o3,o2,perm_rgb_3); \ +} while(0) + +#define vec_mstbgr24(x0,x1,x2,ptr) \ +do { \ + __typeof__(x0) _0,_1,_2; \ + vec_merge3 (x0,x1,x2,_0,_1,_2); \ + vec_st (_0, 0, ptr++); \ + vec_st (_1, 0, ptr++); \ + vec_st (_2, 0, ptr++); \ +} while (0); + +#define vec_mstrgb24(x0,x1,x2,ptr) \ +do { \ + __typeof__(x0) _0,_1,_2; \ + vec_merge3 (x2,x1,x0,_0,_1,_2); \ + vec_st (_0, 0, ptr++); \ + vec_st (_1, 0, ptr++); \ + vec_st (_2, 0, ptr++); \ +} while (0); + +/* pack the pixels in rgb0 format + msb R + lsb 0 +*/ +#define vec_mstrgb32(T,x0,x1,x2,x3,ptr) \ +do { \ + T _0,_1,_2,_3; \ + _0 = vec_mergeh (x0,x1); \ + _1 = vec_mergeh (x2,x3); \ + _2 = (T)vec_mergeh ((vector unsigned short)_0,(vector unsigned short)_1); \ + _3 = (T)vec_mergel ((vector unsigned short)_0,(vector unsigned short)_1); \ + vec_st (_2, 0*16, (T *)ptr); \ + vec_st (_3, 1*16, (T *)ptr); \ + _0 = vec_mergel (x0,x1); \ + _1 = vec_mergel (x2,x3); \ + _2 = (T)vec_mergeh ((vector unsigned short)_0,(vector unsigned short)_1); \ + _3 = (T)vec_mergel ((vector unsigned short)_0,(vector unsigned short)_1); \ + vec_st (_2, 2*16, (T *)ptr); \ + vec_st (_3, 3*16, (T *)ptr); \ + ptr += 4; \ +} while (0); + +/* + + | 1 0 1.4021 | | Y | + | 1 -0.3441 -0.7142 |x| Cb| + | 1 1.7718 0 | | Cr| + + + Y: [-128 127] + Cb/Cr : [-128 127] + + typical yuv conversion work on Y: 0-255 this version has been optimized for jpeg decode. + +*/ + + + + +#define vec_unh(x) \ + (vector signed short) \ + vec_perm(x,(__typeof__(x)){0}, \ + ((vector unsigned char){0x10,0x00,0x10,0x01,0x10,0x02,0x10,0x03,\ + 0x10,0x04,0x10,0x05,0x10,0x06,0x10,0x07})) +#define vec_unl(x) \ + (vector signed short) \ + vec_perm(x,(__typeof__(x)){0}, \ + ((vector unsigned char){0x10,0x08,0x10,0x09,0x10,0x0A,0x10,0x0B,\ + 0x10,0x0C,0x10,0x0D,0x10,0x0E,0x10,0x0F})) + +#define vec_clip_s16(x) \ + vec_max (vec_min (x, ((vector signed short){235,235,235,235,235,235,235,235})), \ + ((vector signed short){ 16, 16, 16, 16, 16, 16, 16, 16})) + +#define vec_packclp(x,y) \ + (vector unsigned char)vec_packs \ + ((vector unsigned short)vec_max (x,((vector signed short) {0})), \ + (vector unsigned short)vec_max (y,((vector signed short) {0}))) + +//#define out_pixels(a,b,c,ptr) vec_mstrgb32(__typeof__(a),((__typeof__ (a)){255}),a,a,a,ptr) + + +static inline void cvtyuvtoRGB (SwsContext *c, + vector signed short Y, vector signed short U, vector signed short V, + vector signed short *R, vector signed short *G, vector signed short *B) +{ + vector signed short vx,ux,uvx; + + Y = vec_mradds (Y, c->CY, c->OY); + U = vec_sub (U,(vector signed short) + vec_splat((vector signed short){128},0)); + V = vec_sub (V,(vector signed short) + vec_splat((vector signed short){128},0)); + + // ux = (CBU*(u<<c->CSHIFT)+0x4000)>>15; + ux = vec_sl (U, c->CSHIFT); + *B = vec_mradds (ux, c->CBU, Y); + + // vx = (CRV*(v<<c->CSHIFT)+0x4000)>>15; + vx = vec_sl (V, c->CSHIFT); + *R = vec_mradds (vx, c->CRV, Y); + + // uvx = ((CGU*u) + (CGV*v))>>15; + uvx = vec_mradds (U, c->CGU, Y); + *G = vec_mradds (V, c->CGV, uvx); +} + + +/* + ------------------------------------------------------------------------------ + CS converters + ------------------------------------------------------------------------------ +*/ + + +#define DEFCSP420_CVT(name,out_pixels) \ +static int altivec_##name (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 *y1ivP, *y2ivP, *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]+instrides[0]; \ + 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]*2-w; /* the loop moves y{1,2}i by w */ \ + 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){128},0)); \ + v = (vector signed char) \ + vec_sub (v,(vector signed char) \ + vec_splat((vector signed char){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){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){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){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)){255}),c,b,a,ptr) +#define out_bgra(a,b,c,ptr) vec_mstrgb32(__typeof__(a),c,b,a,((__typeof__ (a)){255}),ptr) +#define out_rgba(a,b,c,ptr) vec_mstrgb32(__typeof__(a),a,b,c,((__typeof__ (a)){255}),ptr) +#define out_argb(a,b,c,ptr) vec_mstrgb32(__typeof__(a),((__typeof__ (a)){255}),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 1 +DEFCSP420_CVT (yuv2_bgra, out_bgra) +#else +static 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){128},0)); + + v = (vector signed char) + vec_sub (v, (vector signed char) + vec_splat((vector signed char){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){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){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){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; +} + +#endif + + +DEFCSP420_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 cdef +static +const vector unsigned char + demux_u = {0x10,0x00,0x10,0x00, + 0x10,0x04,0x10,0x04, + 0x10,0x08,0x10,0x08, + 0x10,0x0c,0x10,0x0c}, + demux_v = {0x10,0x02,0x10,0x02, + 0x10,0x06,0x10,0x06, + 0x10,0x0A,0x10,0x0A, + 0x10,0x0E,0x10,0x0E}, + demux_y = {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); + U = (vector signed short) + vec_perm (uyvy, (vector unsigned char){0}, demux_u); + + V = (vector signed short) + vec_perm (uyvy, (vector unsigned char){0}, demux_v); + + Y = (vector signed short) + vec_perm (uyvy, (vector unsigned char){0}, demux_y); + + cvtyuvtoRGB (c, Y,U,V,&R0,&G0,&B0); + + uyvy = vec_ld (16, img); + U = (vector signed short) + vec_perm (uyvy, (vector unsigned char){0}, demux_u); + + V = (vector signed short) + vec_perm (uyvy, (vector unsigned char){0}, demux_v); + + Y = (vector signed short) + vec_perm (uyvy, (vector unsigned char){0}, demux_y); + + cvtyuvtoRGB (c, Y,U,V,&R1,&G1,&B1); + + R = vec_packclp (R0,R1); + G = vec_packclp (G0,G1); + B = vec_packclp (B0,B1); + + // vec_mstbgr24 (R,G,B, out); + out_rgba (R,G,B,out); + + img += 32; + } + } + return srcSliceH; +} + + + +/* Ok currently the acceleration routine only supports + inputs of widths a multiple of 16 + and heights a multiple 2 + + So we just fall back to the C codes for this. +*/ +SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c) +{ + if (!(c->flags & SWS_CPU_CAPS_ALTIVEC)) + return NULL; + + /* + and this seems not to matter too much I tried a bunch of + videos with abnormal widths and MPlayer crashes elsewhere. + mplayer -vo x11 -rawvideo on:w=350:h=240 raw-350x240.eyuv + boom with X11 bad match. + + */ + if ((c->srcW & 0xf) != 0) return NULL; + + switch (c->srcFormat) { + case PIX_FMT_YUV410P: + case PIX_FMT_YUV420P: + /*case IMGFMT_CLPL: ??? */ + case PIX_FMT_GRAY8: + case PIX_FMT_NV12: + case PIX_FMT_NV21: + if ((c->srcH & 0x1) != 0) + return NULL; + + switch(c->dstFormat){ + case PIX_FMT_RGB24: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space RGB24\n"); + return altivec_yuv2_rgb24; + case PIX_FMT_BGR24: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space BGR24\n"); + return altivec_yuv2_bgr24; + case PIX_FMT_ARGB: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space ARGB\n"); + return altivec_yuv2_argb; + case PIX_FMT_ABGR: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space ABGR\n"); + return altivec_yuv2_abgr; + case PIX_FMT_RGBA: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space RGBA\n"); + return altivec_yuv2_rgba; + case PIX_FMT_BGRA: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space BGRA\n"); + return altivec_yuv2_bgra; + default: return NULL; + } + break; + + case PIX_FMT_UYVY422: + switch(c->dstFormat){ + case PIX_FMT_BGR32: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space UYVY -> RGB32\n"); + return altivec_uyvy_rgb32; + default: return NULL; + } + break; + + } + return NULL; +} + +void ff_yuv2rgb_init_tables_altivec(SwsContext *c, const int inv_table[4], int brightness, int contrast, int saturation) +{ + union { + signed short tmp[8] __attribute__ ((aligned(16))); + vector signed short vec; + } buf; + + buf.tmp[0] = ((0xffffLL) * contrast>>8)>>9; //cy + buf.tmp[1] = -256*brightness; //oy + buf.tmp[2] = (inv_table[0]>>3) *(contrast>>16)*(saturation>>16); //crv + buf.tmp[3] = (inv_table[1]>>3) *(contrast>>16)*(saturation>>16); //cbu + buf.tmp[4] = -((inv_table[2]>>1)*(contrast>>16)*(saturation>>16)); //cgu + buf.tmp[5] = -((inv_table[3]>>1)*(contrast>>16)*(saturation>>16)); //cgv + + + c->CSHIFT = (vector unsigned short)vec_splat_u16(2); + c->CY = vec_splat ((vector signed short)buf.vec, 0); + c->OY = vec_splat ((vector signed short)buf.vec, 1); + c->CRV = vec_splat ((vector signed short)buf.vec, 2); + c->CBU = vec_splat ((vector signed short)buf.vec, 3); + c->CGU = vec_splat ((vector signed short)buf.vec, 4); + c->CGV = vec_splat ((vector signed short)buf.vec, 5); +#if 0 + { + int i; + char *v[6]={"cy","oy","crv","cbu","cgu","cgv"}; + for (i=0; i<6; i++) + printf("%s %d ", v[i],buf.tmp[i] ); + printf("\n"); + } +#endif + return; +} + + +void +ff_yuv2packedX_altivec(SwsContext *c, + int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize, + int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize, + uint8_t *dest, int dstW, int dstY) +{ + int i,j; + vector signed short X,X0,X1,Y0,U0,V0,Y1,U1,V1,U,V; + vector signed short R0,G0,B0,R1,G1,B1; + + vector unsigned char R,G,B; + vector unsigned char *out,*nout; + + vector signed short RND = vec_splat_s16(1<<3); + vector unsigned short SCL = vec_splat_u16(4); + unsigned long scratch[16] __attribute__ ((aligned (16))); + + vector signed short *YCoeffs, *CCoeffs; + + YCoeffs = c->vYCoeffsBank+dstY*lumFilterSize; + CCoeffs = c->vCCoeffsBank+dstY*chrFilterSize; + + out = (vector unsigned char *)dest; + + for (i=0; i<dstW; i+=16){ + Y0 = RND; + Y1 = RND; + /* extract 16 coeffs from lumSrc */ + for (j=0; j<lumFilterSize; j++) { + X0 = vec_ld (0, &lumSrc[j][i]); + X1 = vec_ld (16, &lumSrc[j][i]); + Y0 = vec_mradds (X0, YCoeffs[j], Y0); + Y1 = vec_mradds (X1, YCoeffs[j], Y1); + } + + U = RND; + V = RND; + /* extract 8 coeffs from U,V */ + for (j=0; j<chrFilterSize; j++) { + X = vec_ld (0, &chrSrc[j][i/2]); + U = vec_mradds (X, CCoeffs[j], U); + X = vec_ld (0, &chrSrc[j][i/2+2048]); + V = vec_mradds (X, CCoeffs[j], V); + } + + /* scale and clip signals */ + Y0 = vec_sra (Y0, SCL); + Y1 = vec_sra (Y1, SCL); + U = vec_sra (U, SCL); + V = vec_sra (V, SCL); + + Y0 = vec_clip_s16 (Y0); + Y1 = vec_clip_s16 (Y1); + U = vec_clip_s16 (U); + V = vec_clip_s16 (V); + + /* now we have + Y0= y0 y1 y2 y3 y4 y5 y6 y7 Y1= y8 y9 y10 y11 y12 y13 y14 y15 + U= u0 u1 u2 u3 u4 u5 u6 u7 V= v0 v1 v2 v3 v4 v5 v6 v7 + + Y0= y0 y1 y2 y3 y4 y5 y6 y7 Y1= y8 y9 y10 y11 y12 y13 y14 y15 + U0= u0 u0 u1 u1 u2 u2 u3 u3 U1= u4 u4 u5 u5 u6 u6 u7 u7 + V0= v0 v0 v1 v1 v2 v2 v3 v3 V1= v4 v4 v5 v5 v6 v6 v7 v7 + */ + + U0 = vec_mergeh (U,U); + V0 = vec_mergeh (V,V); + + U1 = vec_mergel (U,U); + V1 = vec_mergel (V,V); + + cvtyuvtoRGB (c, Y0,U0,V0,&R0,&G0,&B0); + cvtyuvtoRGB (c, Y1,U1,V1,&R1,&G1,&B1); + + R = vec_packclp (R0,R1); + G = vec_packclp (G0,G1); + B = vec_packclp (B0,B1); + + switch(c->dstFormat) { + case PIX_FMT_ABGR: out_abgr (R,G,B,out); break; + case PIX_FMT_BGRA: out_bgra (R,G,B,out); break; + case PIX_FMT_RGBA: out_rgba (R,G,B,out); break; + case PIX_FMT_ARGB: out_argb (R,G,B,out); break; + case PIX_FMT_RGB24: out_rgb24 (R,G,B,out); break; + case PIX_FMT_BGR24: out_bgr24 (R,G,B,out); break; + default: + { + /* If this is reached, the caller should have called yuv2packedXinC + instead. */ + static int printed_error_message; + if (!printed_error_message) { + av_log(c, AV_LOG_ERROR, "altivec_yuv2packedX doesn't support %s output\n", + sws_format_name(c->dstFormat)); + printed_error_message=1; + } + return; + } + } + } + + if (i < dstW) { + i -= 16; + + Y0 = RND; + Y1 = RND; + /* extract 16 coeffs from lumSrc */ + for (j=0; j<lumFilterSize; j++) { + X0 = vec_ld (0, &lumSrc[j][i]); + X1 = vec_ld (16, &lumSrc[j][i]); + Y0 = vec_mradds (X0, YCoeffs[j], Y0); + Y1 = vec_mradds (X1, YCoeffs[j], Y1); + } + + U = RND; + V = RND; + /* extract 8 coeffs from U,V */ + for (j=0; j<chrFilterSize; j++) { + X = vec_ld (0, &chrSrc[j][i/2]); + U = vec_mradds (X, CCoeffs[j], U); + X = vec_ld (0, &chrSrc[j][i/2+2048]); + V = vec_mradds (X, CCoeffs[j], V); + } + + /* scale and clip signals */ + Y0 = vec_sra (Y0, SCL); + Y1 = vec_sra (Y1, SCL); + U = vec_sra (U, SCL); + V = vec_sra (V, SCL); + + Y0 = vec_clip_s16 (Y0); + Y1 = vec_clip_s16 (Y1); + U = vec_clip_s16 (U); + V = vec_clip_s16 (V); + + /* now we have + Y0= y0 y1 y2 y3 y4 y5 y6 y7 Y1= y8 y9 y10 y11 y12 y13 y14 y15 + U = u0 u1 u2 u3 u4 u5 u6 u7 V = v0 v1 v2 v3 v4 v5 v6 v7 + + Y0= y0 y1 y2 y3 y4 y5 y6 y7 Y1= y8 y9 y10 y11 y12 y13 y14 y15 + U0= u0 u0 u1 u1 u2 u2 u3 u3 U1= u4 u4 u5 u5 u6 u6 u7 u7 + V0= v0 v0 v1 v1 v2 v2 v3 v3 V1= v4 v4 v5 v5 v6 v6 v7 v7 + */ + + U0 = vec_mergeh (U,U); + V0 = vec_mergeh (V,V); + + U1 = vec_mergel (U,U); + V1 = vec_mergel (V,V); + + cvtyuvtoRGB (c, Y0,U0,V0,&R0,&G0,&B0); + cvtyuvtoRGB (c, Y1,U1,V1,&R1,&G1,&B1); + + R = vec_packclp (R0,R1); + G = vec_packclp (G0,G1); + B = vec_packclp (B0,B1); + + nout = (vector unsigned char *)scratch; + switch(c->dstFormat) { + case PIX_FMT_ABGR: out_abgr (R,G,B,nout); break; + case PIX_FMT_BGRA: out_bgra (R,G,B,nout); break; + case PIX_FMT_RGBA: out_rgba (R,G,B,nout); break; + case PIX_FMT_ARGB: out_argb (R,G,B,nout); break; + case PIX_FMT_RGB24: out_rgb24 (R,G,B,nout); break; + case PIX_FMT_BGR24: out_bgr24 (R,G,B,nout); break; + default: + /* Unreachable, I think. */ + av_log(c, AV_LOG_ERROR, "altivec_yuv2packedX doesn't support %s output\n", + sws_format_name(c->dstFormat)); + return; + } + + memcpy (&((uint32_t*)dest)[i], scratch, (dstW-i)/4); + } + +} |