diff options
Diffstat (limited to 'ffmpeg1/libswscale/ppc/yuv2rgb_altivec.c')
| -rw-r--r-- | ffmpeg1/libswscale/ppc/yuv2rgb_altivec.c | 854 |
1 files changed, 854 insertions, 0 deletions
diff --git a/ffmpeg1/libswscale/ppc/yuv2rgb_altivec.c b/ffmpeg1/libswscale/ppc/yuv2rgb_altivec.c new file mode 100644 index 0000000..a8501d9 --- /dev/null +++ b/ffmpeg1/libswscale/ppc/yuv2rgb_altivec.c @@ -0,0 +1,854 @@ +/* + * 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" +#include "libavutil/attributes.h" +#include "libavutil/cpu.h" +#include "libavutil/pixdesc.h" +#include "yuv2rgb_altivec.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 works on Y: 0-255 this version has been + * optimized for JPEG decoding. + */ + +#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, const 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; \ + \ + const vector unsigned char *y1ivP, *y2ivP, *uivP, *vivP; \ + vector unsigned char align_perm; \ + \ + vector signed short lCY = c->CY; \ + vector signed short lOY = c->OY; \ + vector signed short lCRV = c->CRV; \ + vector signed short lCBU = c->CBU; \ + vector signed short lCGU = c->CGU; \ + vector signed short lCGV = c->CGV; \ + vector unsigned short lCSHIFT = c->CSHIFT; \ + \ + const ubyte *y1i = in[0]; \ + const ubyte *y2i = in[0] + instrides[0]; \ + const ubyte *ui = in[1]; \ + const ubyte *vi = in[2]; \ + \ + vector unsigned char *oute, *outo; \ + \ + /* loop moves y{1, 2}i by w */ \ + instrides_scl[0] = instrides[0] * 2 - w; \ + /* loop moves ui by w / 2 */ \ + instrides_scl[1] = instrides[1] - w / 2; \ + /* loop moves vi by w / 2 */ \ + instrides_scl[2] = instrides[2] - w / 2; \ + \ + for (i = 0; i < h / 2; i++) { \ + oute = (vector unsigned char *)(oplanes[0] + outstrides[0] * \ + (srcSliceY + i * 2)); \ + outo = oute + (outstrides[0] >> 4); \ + 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 = (const vector unsigned char *) y1i; \ + y2ivP = (const vector unsigned char *) y2i; \ + uivP = (const vector unsigned char *) ui; \ + vivP = (const 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; \ + } \ + \ + 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) +DEFCSP420_CVT(yuv2_bgra, out_bgra) +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, const 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; + const 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. + */ +av_cold SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c) +{ + if (!(av_get_cpu_flags() & AV_CPU_FLAG_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 AV_PIX_FMT_YUV410P: + case AV_PIX_FMT_YUV420P: + /*case IMGFMT_CLPL: ??? */ + case AV_PIX_FMT_GRAY8: + case AV_PIX_FMT_NV12: + case AV_PIX_FMT_NV21: + if ((c->srcH & 0x1) != 0) + return NULL; + + switch (c->dstFormat) { + case AV_PIX_FMT_RGB24: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space RGB24\n"); + return altivec_yuv2_rgb24; + case AV_PIX_FMT_BGR24: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space BGR24\n"); + return altivec_yuv2_bgr24; + case AV_PIX_FMT_ARGB: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space ARGB\n"); + return altivec_yuv2_argb; + case AV_PIX_FMT_ABGR: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space ABGR\n"); + return altivec_yuv2_abgr; + case AV_PIX_FMT_RGBA: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space RGBA\n"); + return altivec_yuv2_rgba; + case AV_PIX_FMT_BGRA: + av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space BGRA\n"); + return altivec_yuv2_bgra; + default: return NULL; + } + break; + + case AV_PIX_FMT_UYVY422: + switch (c->dstFormat) { + case AV_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; +} + +av_cold void ff_yuv2rgb_init_tables_altivec(SwsContext *c, + const int inv_table[4], + int brightness, + int contrast, + int saturation) +{ + union { + DECLARE_ALIGNED(16, signed short, tmp)[8]; + 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); + return; +} + +static av_always_inline void ff_yuv2packedX_altivec(SwsContext *c, + const int16_t *lumFilter, + const int16_t **lumSrc, + int lumFilterSize, + const int16_t *chrFilter, + const int16_t **chrUSrc, + const int16_t **chrVSrc, + int chrFilterSize, + const int16_t **alpSrc, + uint8_t *dest, + int dstW, int dstY, + enum AVPixelFormat target) +{ + 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); + DECLARE_ALIGNED(16, unsigned int, scratch)[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, &chrUSrc[j][i / 2]); + U = vec_mradds(X, CCoeffs[j], U); + X = vec_ld(0, &chrVSrc[j][i / 2]); + 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 (target) { + case AV_PIX_FMT_ABGR: + out_abgr(R, G, B, out); + break; + case AV_PIX_FMT_BGRA: + out_bgra(R, G, B, out); + break; + case AV_PIX_FMT_RGBA: + out_rgba(R, G, B, out); + break; + case AV_PIX_FMT_ARGB: + out_argb(R, G, B, out); + break; + case AV_PIX_FMT_RGB24: + out_rgb24(R, G, B, out); + break; + case AV_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", + av_get_pix_fmt_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, &chrUSrc[j][i / 2]); + U = vec_mradds(X, CCoeffs[j], U); + X = vec_ld(0, &chrVSrc[j][i / 2]); + 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 (target) { + case AV_PIX_FMT_ABGR: + out_abgr(R, G, B, nout); + break; + case AV_PIX_FMT_BGRA: + out_bgra(R, G, B, nout); + break; + case AV_PIX_FMT_RGBA: + out_rgba(R, G, B, nout); + break; + case AV_PIX_FMT_ARGB: + out_argb(R, G, B, nout); + break; + case AV_PIX_FMT_RGB24: + out_rgb24(R, G, B, nout); + break; + case AV_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", + av_get_pix_fmt_name(c->dstFormat)); + return; + } + + memcpy(&((uint32_t *) dest)[i], scratch, (dstW - i) / 4); + } +} + +#define YUV2PACKEDX_WRAPPER(suffix, pixfmt) \ +void ff_yuv2 ## suffix ## _X_altivec(SwsContext *c, \ + const int16_t *lumFilter, \ + const int16_t **lumSrc, \ + int lumFilterSize, \ + const int16_t *chrFilter, \ + const int16_t **chrUSrc, \ + const int16_t **chrVSrc, \ + int chrFilterSize, \ + const int16_t **alpSrc, \ + uint8_t *dest, int dstW, int dstY) \ +{ \ + ff_yuv2packedX_altivec(c, lumFilter, lumSrc, lumFilterSize, \ + chrFilter, chrUSrc, chrVSrc, \ + chrFilterSize, alpSrc, \ + dest, dstW, dstY, pixfmt); \ +} + +YUV2PACKEDX_WRAPPER(abgr, AV_PIX_FMT_ABGR); +YUV2PACKEDX_WRAPPER(bgra, AV_PIX_FMT_BGRA); +YUV2PACKEDX_WRAPPER(argb, AV_PIX_FMT_ARGB); +YUV2PACKEDX_WRAPPER(rgba, AV_PIX_FMT_RGBA); +YUV2PACKEDX_WRAPPER(rgb24, AV_PIX_FMT_RGB24); +YUV2PACKEDX_WRAPPER(bgr24, AV_PIX_FMT_BGR24); |