| /* |
| * 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" |
| |
| #if HAVE_ALTIVEC |
| |
| #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. |
| */ |
| |
| #if HAVE_BIGENDIAN |
| #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 })) |
| #else |
| #define vec_unh(x)(vector signed short) vec_mergeh(x,(__typeof__(x)) { 0 }) |
| #define vec_unl(x)(vector signed short) vec_mergel(x,(__typeof__(x)) { 0 }) |
| #endif |
| |
| #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 }))) |
| |
| 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; |
| } |
| |
| #endif /* HAVE_ALTIVEC */ |
| |
| /* 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_ppc(SwsContext *c) |
| { |
| #if HAVE_ALTIVEC |
| 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; |
| } |
| #endif /* HAVE_ALTIVEC */ |
| |
| return NULL; |
| } |
| |
| av_cold void ff_yuv2rgb_init_tables_ppc(SwsContext *c, |
| const int inv_table[4], |
| int brightness, |
| int contrast, |
| int saturation) |
| { |
| #if HAVE_ALTIVEC |
| union { |
| DECLARE_ALIGNED(16, signed short, tmp)[8]; |
| vector signed short vec; |
| } buf; |
| |
| if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC)) |
| return; |
| |
| 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; |
| #endif /* HAVE_ALTIVEC */ |
| } |
| |
| #if HAVE_ALTIVEC |
| |
| static av_always_inline void 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) \ |
| { \ |
| 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); |
| |
| #endif /* HAVE_ALTIVEC */ |
