ffmpeg / libswscale / yuv2rgb_altivec.c @ 8a322796
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/*
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* AltiVec acceleration for colorspace conversion
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*
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* copyright (C) 2004 Marc Hoffman <marc.hoffman@analog.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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Convert I420 YV12 to RGB in various formats,
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it rejects images that are not in 420 formats,
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it rejects images that don't have widths of multiples of 16,
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it rejects images that don't have heights of multiples of 2.
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Reject defers to C simulation code.
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Lots of optimizations to be done here.
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1. Need to fix saturation code. I just couldn't get it to fly with packs
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and adds, so we currently use max/min to clip.
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2. The inefficient use of chroma loading needs a bit of brushing up.
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3. Analysis of pipeline stalls needs to be done. Use shark to identify
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pipeline stalls.
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MODIFIED to calculate coeffs from currently selected color space.
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MODIFIED core to be a macro where you specify the output format.
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ADDED UYVY conversion which is never called due to some thing in swscale.
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CORRECTED algorithim selection to be strict on input formats.
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ADDED runtime detection of AltiVec.
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ADDED altivec_yuv2packedX vertical scl + RGB converter
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March 27,2004
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PERFORMANCE ANALYSIS
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The C version uses 25% of the processor or ~250Mips for D1 video rawvideo
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used as test.
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The AltiVec version uses 10% of the processor or ~100Mips for D1 video
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same sequence.
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720 * 480 * 30 ~10MPS
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so we have roughly 10 clocks per pixel. This is too high, something has
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to be wrong.
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OPTIMIZED clip codes to utilize vec_max and vec_packs removing the
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need for vec_min.
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OPTIMIZED DST OUTPUT cache/DMA controls. We are pretty much guaranteed to have
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the input video frame, it was just decompressed so it probably resides in L1
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caches. However, we are creating the output video stream. This needs to use the
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DSTST instruction to optimize for the cache. We couple this with the fact that
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we are not going to be visiting the input buffer again so we mark it Least
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Recently Used. This shaves 25% of the processor cycles off.
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Now memcpy is the largest mips consumer in the system, probably due
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to the inefficient X11 stuff.
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GL libraries seem to be very slow on this machine 1.33Ghz PB running
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Jaguar, this is not the case for my 1Ghz PB. I thought it might be
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a versioning issue, however I have libGL.1.2.dylib for both
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machines. (We need to figure this out now.)
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GL2 libraries work now with patch for RGB32.
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NOTE: quartz vo driver ARGB32_to_RGB24 consumes 30% of the processor.
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Integrated luma prescaling adjustment for saturation/contrast/brightness
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adjustment.
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*/
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <inttypes.h> |
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#include <assert.h> |
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#include "config.h" |
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#ifdef HAVE_MALLOC_H
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#include <malloc.h> |
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#endif
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#include "rgb2rgb.h" |
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#include "swscale.h" |
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#include "swscale_internal.h" |
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#undef PROFILE_THE_BEAST
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#undef INC_SCALING
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typedef unsigned char ubyte; |
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typedef signed char sbyte; |
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/* RGB interleaver, 16 planar pels 8-bit samples per channel in
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homogeneous vector registers x0,x1,x2 are interleaved with the
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following technique:
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o0 = vec_mergeh (x0,x1);
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o1 = vec_perm (o0, x2, perm_rgb_0);
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o2 = vec_perm (o0, x2, perm_rgb_1);
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o3 = vec_mergel (x0,x1);
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o4 = vec_perm (o3,o2,perm_rgb_2);
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o5 = vec_perm (o3,o2,perm_rgb_3);
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perm_rgb_0: o0(RG).h v1(B) --> o1*
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0 1 2 3 4
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rgbr|gbrg|brgb|rgbr
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0010 0100 1001 0010
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0102 3145 2673 894A
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perm_rgb_1: o0(RG).h v1(B) --> o2
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0 1 2 3 4
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gbrg|brgb|bbbb|bbbb
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0100 1001 1111 1111
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B5CD 6EF7 89AB CDEF
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perm_rgb_2: o3(RG).l o2(rgbB.l) --> o4*
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0 1 2 3 4
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gbrg|brgb|rgbr|gbrg
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1111 1111 0010 0100
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89AB CDEF 0182 3945
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perm_rgb_2: o3(RG).l o2(rgbB.l) ---> o5*
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0 1 2 3 4
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brgb|rgbr|gbrg|brgb
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1001 0010 0100 1001
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a67b 89cA BdCD eEFf
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*/
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static
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const vector unsigned char |
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perm_rgb_0 = (const vector unsigned char)AVV(0x00,0x01,0x10,0x02,0x03,0x11,0x04,0x05, |
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0x12,0x06,0x07,0x13,0x08,0x09,0x14,0x0a), |
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perm_rgb_1 = (const vector unsigned char)AVV(0x0b,0x15,0x0c,0x0d,0x16,0x0e,0x0f,0x17, |
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0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f), |
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perm_rgb_2 = (const vector unsigned char)AVV(0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17, |
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0x00,0x01,0x18,0x02,0x03,0x19,0x04,0x05), |
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perm_rgb_3 = (const vector unsigned char)AVV(0x1a,0x06,0x07,0x1b,0x08,0x09,0x1c,0x0a, |
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0x0b,0x1d,0x0c,0x0d,0x1e,0x0e,0x0f,0x1f); |
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#define vec_merge3(x2,x1,x0,y0,y1,y2) \
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do { \
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typeof(x0) o0,o2,o3; \ |
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o0 = vec_mergeh (x0,x1); \ |
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y0 = vec_perm (o0, x2, perm_rgb_0); \ |
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o2 = vec_perm (o0, x2, perm_rgb_1); \ |
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o3 = vec_mergel (x0,x1); \ |
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y1 = vec_perm (o3,o2,perm_rgb_2); \ |
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y2 = vec_perm (o3,o2,perm_rgb_3); \ |
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} while(0) |
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#define vec_mstbgr24(x0,x1,x2,ptr) \
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do { \
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typeof(x0) _0,_1,_2; \ |
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vec_merge3 (x0,x1,x2,_0,_1,_2); \ |
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vec_st (_0, 0, ptr++); \
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vec_st (_1, 0, ptr++); \
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vec_st (_2, 0, ptr++); \
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} while (0); |
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#define vec_mstrgb24(x0,x1,x2,ptr) \
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do { \
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typeof(x0) _0,_1,_2; \ |
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vec_merge3 (x2,x1,x0,_0,_1,_2); \ |
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vec_st (_0, 0, ptr++); \
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vec_st (_1, 0, ptr++); \
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vec_st (_2, 0, ptr++); \
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} while (0); |
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/* pack the pixels in rgb0 format
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msb R
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lsb 0
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*/
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#define vec_mstrgb32(T,x0,x1,x2,x3,ptr) \
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do { \
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T _0,_1,_2,_3; \ |
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_0 = vec_mergeh (x0,x1); \ |
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_1 = vec_mergeh (x2,x3); \ |
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_2 = (T)vec_mergeh ((vector unsigned short)_0,(vector unsigned short)_1); \ |
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_3 = (T)vec_mergel ((vector unsigned short)_0,(vector unsigned short)_1); \ |
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vec_st (_2, 0*16, (T *)ptr); \ |
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vec_st (_3, 1*16, (T *)ptr); \ |
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_0 = vec_mergel (x0,x1); \ |
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_1 = vec_mergel (x2,x3); \ |
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_2 = (T)vec_mergeh ((vector unsigned short)_0,(vector unsigned short)_1); \ |
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_3 = (T)vec_mergel ((vector unsigned short)_0,(vector unsigned short)_1); \ |
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vec_st (_2, 2*16, (T *)ptr); \ |
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vec_st (_3, 3*16, (T *)ptr); \ |
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ptr += 4; \
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} while (0); |
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/*
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| 1 0 1.4021 | | Y |
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| 1 -0.3441 -0.7142 |x| Cb|
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| 1 1.7718 0 | | Cr|
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Y: [-128 127]
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Cb/Cr : [-128 127]
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typical yuv conversion work on Y: 0-255 this version has been optimized for jpeg decode.
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*/
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#define vec_unh(x) \
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(vector signed short) \ |
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vec_perm(x,(typeof(x))AVV(0),\
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(vector unsigned char)AVV(0x10,0x00,0x10,0x01,0x10,0x02,0x10,0x03,\ |
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0x10,0x04,0x10,0x05,0x10,0x06,0x10,0x07)) |
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#define vec_unl(x) \
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(vector signed short) \ |
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vec_perm(x,(typeof(x))AVV(0),\
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(vector unsigned char)AVV(0x10,0x08,0x10,0x09,0x10,0x0A,0x10,0x0B,\ |
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0x10,0x0C,0x10,0x0D,0x10,0x0E,0x10,0x0F)) |
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#define vec_clip_s16(x) \
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vec_max (vec_min (x, (vector signed short)AVV(235,235,235,235,235,235,235,235)),\ |
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(vector signed short)AVV( 16, 16, 16, 16, 16, 16, 16, 16)) |
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#define vec_packclp(x,y) \
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(vector unsigned char)vec_packs \ |
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((vector unsigned short)vec_max (x,(vector signed short) AVV(0)), \ |
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(vector unsigned short)vec_max (y,(vector signed short) AVV(0))) |
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//#define out_pixels(a,b,c,ptr) vec_mstrgb32(typeof(a),((typeof (a))AVV(0)),a,a,a,ptr)
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static inline void cvtyuvtoRGB (SwsContext *c, |
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vector signed short Y, vector signed short U, vector signed short V, |
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vector signed short *R, vector signed short *G, vector signed short *B) |
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{
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vector signed short vx,ux,uvx; |
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Y = vec_mradds (Y, c->CY, c->OY); |
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U = vec_sub (U,(vector signed short) |
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vec_splat((vector signed short)AVV(128),0)); |
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V = vec_sub (V,(vector signed short) |
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vec_splat((vector signed short)AVV(128),0)); |
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// ux = (CBU*(u<<c->CSHIFT)+0x4000)>>15;
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ux = vec_sl (U, c->CSHIFT); |
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*B = vec_mradds (ux, c->CBU, Y); |
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// vx = (CRV*(v<<c->CSHIFT)+0x4000)>>15;
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vx = vec_sl (V, c->CSHIFT); |
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*R = vec_mradds (vx, c->CRV, Y); |
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// uvx = ((CGU*u) + (CGV*v))>>15;
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uvx = vec_mradds (U, c->CGU, Y); |
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*G = vec_mradds (V, c->CGV, uvx); |
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} |
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/*
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------------------------------------------------------------------------------
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CS converters
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------------------------------------------------------------------------------
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*/
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#define DEFCSP420_CVT(name,out_pixels) \
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static int altivec_##name (SwsContext *c, \ |
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unsigned char **in, int *instrides, \ |
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int srcSliceY, int srcSliceH, \ |
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unsigned char **oplanes, int *outstrides) \ |
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{ \
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int w = c->srcW; \
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int h = srcSliceH; \
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int i,j; \
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int instrides_scl[3]; \ |
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vector unsigned char y0,y1; \ |
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\ |
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vector signed char u,v; \ |
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\ |
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vector signed short Y0,Y1,Y2,Y3; \ |
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vector signed short U,V; \ |
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vector signed short vx,ux,uvx; \ |
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vector signed short vx0,ux0,uvx0; \ |
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vector signed short vx1,ux1,uvx1; \ |
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vector signed short R0,G0,B0; \ |
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vector signed short R1,G1,B1; \ |
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vector unsigned char R,G,B; \ |
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\ |
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vector unsigned char *y1ivP, *y2ivP, *uivP, *vivP; \ |
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vector unsigned char align_perm; \ |
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\ |
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vector signed short \ |
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lCY = c->CY, \ |
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lOY = c->OY, \ |
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lCRV = c->CRV, \ |
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lCBU = c->CBU, \ |
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lCGU = c->CGU, \ |
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lCGV = c->CGV; \ |
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\ |
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vector unsigned short lCSHIFT = c->CSHIFT; \ |
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\ |
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ubyte *y1i = in[0]; \
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ubyte *y2i = in[0]+instrides[0]; \ |
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ubyte *ui = in[1]; \
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ubyte *vi = in[2]; \
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\ |
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vector unsigned char *oute \ |
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= (vector unsigned char *) \ |
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(oplanes[0]+srcSliceY*outstrides[0]); \ |
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vector unsigned char *outo \ |
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= (vector unsigned char *) \ |
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(oplanes[0]+srcSliceY*outstrides[0]+outstrides[0]); \ |
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\ |
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\ |
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instrides_scl[0] = instrides[0]*2-w; /* the loop moves y{1,2}i by w */ \ |
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instrides_scl[1] = instrides[1]-w/2; /* the loop moves ui by w/2 */ \ |
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instrides_scl[2] = instrides[2]-w/2; /* the loop moves vi by w/2 */ \ |
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\ |
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\ |
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for (i=0;i<h/2;i++) { \ |
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vec_dstst (outo, (0x02000002|(((w*3+32)/32)<<16)), 0); \ |
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vec_dstst (oute, (0x02000002|(((w*3+32)/32)<<16)), 1); \ |
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\ |
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for (j=0;j<w/16;j++) { \ |
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\ |
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y1ivP = (vector unsigned char *)y1i; \ |
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y2ivP = (vector unsigned char *)y2i; \ |
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uivP = (vector unsigned char *)ui; \ |
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vivP = (vector unsigned char *)vi; \ |
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\ |
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align_perm = vec_lvsl (0, y1i); \
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y0 = (vector unsigned char) \ |
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vec_perm (y1ivP[0], y1ivP[1], align_perm); \ |
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\ |
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align_perm = vec_lvsl (0, y2i); \
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y1 = (vector unsigned char) \ |
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vec_perm (y2ivP[0], y2ivP[1], align_perm); \ |
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\ |
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align_perm = vec_lvsl (0, ui); \
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u = (vector signed char) \ |
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vec_perm (uivP[0], uivP[1], align_perm); \ |
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\ |
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align_perm = vec_lvsl (0, vi); \
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v = (vector signed char) \ |
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vec_perm (vivP[0], vivP[1], align_perm); \ |
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\ |
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u = (vector signed char) \ |
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vec_sub (u,(vector signed char) \ |
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vec_splat((vector signed char)AVV(128),0)); \ |
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v = (vector signed char) \ |
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vec_sub (v,(vector signed char) \ |
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vec_splat((vector signed char)AVV(128),0)); \ |
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\ |
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U = vec_unpackh (u); \ |
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V = vec_unpackh (v); \ |
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\ |
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\ |
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Y0 = vec_unh (y0); \ |
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Y1 = vec_unl (y0); \ |
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Y2 = vec_unh (y1); \ |
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Y3 = vec_unl (y1); \ |
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\ |
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Y0 = vec_mradds (Y0, lCY, lOY); \ |
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Y1 = vec_mradds (Y1, lCY, lOY); \ |
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Y2 = vec_mradds (Y2, lCY, lOY); \ |
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Y3 = vec_mradds (Y3, lCY, lOY); \ |
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\ |
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/* ux = (CBU*(u<<CSHIFT)+0x4000)>>15 */ \
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ux = vec_sl (U, lCSHIFT); \ |
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ux = vec_mradds (ux, lCBU, (vector signed short)AVV(0)); \ |
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ux0 = vec_mergeh (ux,ux); \ |
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ux1 = vec_mergel (ux,ux); \ |
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\ |
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/* vx = (CRV*(v<<CSHIFT)+0x4000)>>15; */ \
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vx = vec_sl (V, lCSHIFT); \ |
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vx = vec_mradds (vx, lCRV, (vector signed short)AVV(0)); \ |
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vx0 = vec_mergeh (vx,vx); \ |
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vx1 = vec_mergel (vx,vx); \ |
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\ |
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/* uvx = ((CGU*u) + (CGV*v))>>15 */ \
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uvx = vec_mradds (U, lCGU, (vector signed short)AVV(0)); \ |
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uvx = vec_mradds (V, lCGV, uvx); \ |
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uvx0 = vec_mergeh (uvx,uvx); \ |
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uvx1 = vec_mergel (uvx,uvx); \ |
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\ |
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R0 = vec_add (Y0,vx0); \ |
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G0 = vec_add (Y0,uvx0); \ |
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B0 = vec_add (Y0,ux0); \ |
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R1 = vec_add (Y1,vx1); \ |
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G1 = vec_add (Y1,uvx1); \ |
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B1 = vec_add (Y1,ux1); \ |
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\ |
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R = vec_packclp (R0,R1); \ |
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G = vec_packclp (G0,G1); \ |
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B = vec_packclp (B0,B1); \ |
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\ |
| 410 |
out_pixels(R,G,B,oute); \ |
| 411 |
\ |
| 412 |
R0 = vec_add (Y2,vx0); \ |
| 413 |
G0 = vec_add (Y2,uvx0); \ |
| 414 |
B0 = vec_add (Y2,ux0); \ |
| 415 |
R1 = vec_add (Y3,vx1); \ |
| 416 |
G1 = vec_add (Y3,uvx1); \ |
| 417 |
B1 = vec_add (Y3,ux1); \ |
| 418 |
R = vec_packclp (R0,R1); \ |
| 419 |
G = vec_packclp (G0,G1); \ |
| 420 |
B = vec_packclp (B0,B1); \ |
| 421 |
\ |
| 422 |
\ |
| 423 |
out_pixels(R,G,B,outo); \ |
| 424 |
\ |
| 425 |
y1i += 16; \
|
| 426 |
y2i += 16; \
|
| 427 |
ui += 8; \
|
| 428 |
vi += 8; \
|
| 429 |
\ |
| 430 |
} \ |
| 431 |
\ |
| 432 |
outo += (outstrides[0])>>4; \ |
| 433 |
oute += (outstrides[0])>>4; \ |
| 434 |
\ |
| 435 |
ui += instrides_scl[1]; \
|
| 436 |
vi += instrides_scl[2]; \
|
| 437 |
y1i += instrides_scl[0]; \
|
| 438 |
y2i += instrides_scl[0]; \
|
| 439 |
} \ |
| 440 |
return srcSliceH; \
|
| 441 |
} |
| 442 |
|
| 443 |
|
| 444 |
#define out_abgr(a,b,c,ptr) vec_mstrgb32(typeof(a),((typeof (a))AVV(0)),c,b,a,ptr) |
| 445 |
#define out_bgra(a,b,c,ptr) vec_mstrgb32(typeof(a),c,b,a,((typeof (a))AVV(0)),ptr) |
| 446 |
#define out_rgba(a,b,c,ptr) vec_mstrgb32(typeof(a),a,b,c,((typeof (a))AVV(0)),ptr) |
| 447 |
#define out_argb(a,b,c,ptr) vec_mstrgb32(typeof(a),((typeof (a))AVV(0)),a,b,c,ptr) |
| 448 |
#define out_rgb24(a,b,c,ptr) vec_mstrgb24(a,b,c,ptr)
|
| 449 |
#define out_bgr24(a,b,c,ptr) vec_mstbgr24(a,b,c,ptr)
|
| 450 |
|
| 451 |
DEFCSP420_CVT (yuv2_abgr, out_abgr) |
| 452 |
#if 1 |
| 453 |
DEFCSP420_CVT (yuv2_bgra, out_bgra) |
| 454 |
#else
|
| 455 |
static int altivec_yuv2_bgra32 (SwsContext *c, |
| 456 |
unsigned char **in, int *instrides, |
| 457 |
int srcSliceY, int srcSliceH, |
| 458 |
unsigned char **oplanes, int *outstrides) |
| 459 |
{
|
| 460 |
int w = c->srcW;
|
| 461 |
int h = srcSliceH;
|
| 462 |
int i,j;
|
| 463 |
int instrides_scl[3]; |
| 464 |
vector unsigned char y0,y1; |
| 465 |
|
| 466 |
vector signed char u,v; |
| 467 |
|
| 468 |
vector signed short Y0,Y1,Y2,Y3; |
| 469 |
vector signed short U,V; |
| 470 |
vector signed short vx,ux,uvx; |
| 471 |
vector signed short vx0,ux0,uvx0; |
| 472 |
vector signed short vx1,ux1,uvx1; |
| 473 |
vector signed short R0,G0,B0; |
| 474 |
vector signed short R1,G1,B1; |
| 475 |
vector unsigned char R,G,B; |
| 476 |
|
| 477 |
vector unsigned char *uivP, *vivP; |
| 478 |
vector unsigned char align_perm; |
| 479 |
|
| 480 |
vector signed short |
| 481 |
lCY = c->CY, |
| 482 |
lOY = c->OY, |
| 483 |
lCRV = c->CRV, |
| 484 |
lCBU = c->CBU, |
| 485 |
lCGU = c->CGU, |
| 486 |
lCGV = c->CGV; |
| 487 |
|
| 488 |
vector unsigned short lCSHIFT = c->CSHIFT; |
| 489 |
|
| 490 |
ubyte *y1i = in[0];
|
| 491 |
ubyte *y2i = in[0]+w;
|
| 492 |
ubyte *ui = in[1];
|
| 493 |
ubyte *vi = in[2];
|
| 494 |
|
| 495 |
vector unsigned char *oute |
| 496 |
= (vector unsigned char *) |
| 497 |
(oplanes[0]+srcSliceY*outstrides[0]); |
| 498 |
vector unsigned char *outo |
| 499 |
= (vector unsigned char *) |
| 500 |
(oplanes[0]+srcSliceY*outstrides[0]+outstrides[0]); |
| 501 |
|
| 502 |
|
| 503 |
instrides_scl[0] = instrides[0]; |
| 504 |
instrides_scl[1] = instrides[1]-w/2; /* the loop moves ui by w/2 */ |
| 505 |
instrides_scl[2] = instrides[2]-w/2; /* the loop moves vi by w/2 */ |
| 506 |
|
| 507 |
|
| 508 |
for (i=0;i<h/2;i++) { |
| 509 |
vec_dstst (outo, (0x02000002|(((w*3+32)/32)<<16)), 0); |
| 510 |
vec_dstst (oute, (0x02000002|(((w*3+32)/32)<<16)), 1); |
| 511 |
|
| 512 |
for (j=0;j<w/16;j++) { |
| 513 |
|
| 514 |
y0 = vec_ldl (0,y1i);
|
| 515 |
y1 = vec_ldl (0,y2i);
|
| 516 |
uivP = (vector unsigned char *)ui; |
| 517 |
vivP = (vector unsigned char *)vi; |
| 518 |
|
| 519 |
align_perm = vec_lvsl (0, ui);
|
| 520 |
u = (vector signed char)vec_perm (uivP[0], uivP[1], align_perm); |
| 521 |
|
| 522 |
align_perm = vec_lvsl (0, vi);
|
| 523 |
v = (vector signed char)vec_perm (vivP[0], vivP[1], align_perm); |
| 524 |
u = (vector signed char) |
| 525 |
vec_sub (u,(vector signed char) |
| 526 |
vec_splat((vector signed char)AVV(128),0)); |
| 527 |
|
| 528 |
v = (vector signed char) |
| 529 |
vec_sub (v, (vector signed char) |
| 530 |
vec_splat((vector signed char)AVV(128),0)); |
| 531 |
|
| 532 |
U = vec_unpackh (u); |
| 533 |
V = vec_unpackh (v); |
| 534 |
|
| 535 |
|
| 536 |
Y0 = vec_unh (y0); |
| 537 |
Y1 = vec_unl (y0); |
| 538 |
Y2 = vec_unh (y1); |
| 539 |
Y3 = vec_unl (y1); |
| 540 |
|
| 541 |
Y0 = vec_mradds (Y0, lCY, lOY); |
| 542 |
Y1 = vec_mradds (Y1, lCY, lOY); |
| 543 |
Y2 = vec_mradds (Y2, lCY, lOY); |
| 544 |
Y3 = vec_mradds (Y3, lCY, lOY); |
| 545 |
|
| 546 |
/* ux = (CBU*(u<<CSHIFT)+0x4000)>>15 */
|
| 547 |
ux = vec_sl (U, lCSHIFT); |
| 548 |
ux = vec_mradds (ux, lCBU, (vector signed short)AVV(0)); |
| 549 |
ux0 = vec_mergeh (ux,ux); |
| 550 |
ux1 = vec_mergel (ux,ux); |
| 551 |
|
| 552 |
/* vx = (CRV*(v<<CSHIFT)+0x4000)>>15; */
|
| 553 |
vx = vec_sl (V, lCSHIFT); |
| 554 |
vx = vec_mradds (vx, lCRV, (vector signed short)AVV(0)); |
| 555 |
vx0 = vec_mergeh (vx,vx); |
| 556 |
vx1 = vec_mergel (vx,vx); |
| 557 |
/* uvx = ((CGU*u) + (CGV*v))>>15 */
|
| 558 |
uvx = vec_mradds (U, lCGU, (vector signed short)AVV(0)); |
| 559 |
uvx = vec_mradds (V, lCGV, uvx); |
| 560 |
uvx0 = vec_mergeh (uvx,uvx); |
| 561 |
uvx1 = vec_mergel (uvx,uvx); |
| 562 |
R0 = vec_add (Y0,vx0); |
| 563 |
G0 = vec_add (Y0,uvx0); |
| 564 |
B0 = vec_add (Y0,ux0); |
| 565 |
R1 = vec_add (Y1,vx1); |
| 566 |
G1 = vec_add (Y1,uvx1); |
| 567 |
B1 = vec_add (Y1,ux1); |
| 568 |
R = vec_packclp (R0,R1); |
| 569 |
G = vec_packclp (G0,G1); |
| 570 |
B = vec_packclp (B0,B1); |
| 571 |
|
| 572 |
out_argb(R,G,B,oute); |
| 573 |
R0 = vec_add (Y2,vx0); |
| 574 |
G0 = vec_add (Y2,uvx0); |
| 575 |
B0 = vec_add (Y2,ux0); |
| 576 |
R1 = vec_add (Y3,vx1); |
| 577 |
G1 = vec_add (Y3,uvx1); |
| 578 |
B1 = vec_add (Y3,ux1); |
| 579 |
R = vec_packclp (R0,R1); |
| 580 |
G = vec_packclp (G0,G1); |
| 581 |
B = vec_packclp (B0,B1); |
| 582 |
|
| 583 |
out_argb(R,G,B,outo); |
| 584 |
y1i += 16;
|
| 585 |
y2i += 16;
|
| 586 |
ui += 8;
|
| 587 |
vi += 8;
|
| 588 |
|
| 589 |
} |
| 590 |
|
| 591 |
outo += (outstrides[0])>>4; |
| 592 |
oute += (outstrides[0])>>4; |
| 593 |
|
| 594 |
ui += instrides_scl[1];
|
| 595 |
vi += instrides_scl[2];
|
| 596 |
y1i += instrides_scl[0];
|
| 597 |
y2i += instrides_scl[0];
|
| 598 |
} |
| 599 |
return srcSliceH;
|
| 600 |
} |
| 601 |
|
| 602 |
#endif
|
| 603 |
|
| 604 |
|
| 605 |
DEFCSP420_CVT (yuv2_rgba, out_rgba) |
| 606 |
DEFCSP420_CVT (yuv2_argb, out_argb) |
| 607 |
DEFCSP420_CVT (yuv2_rgb24, out_rgb24) |
| 608 |
DEFCSP420_CVT (yuv2_bgr24, out_bgr24) |
| 609 |
|
| 610 |
|
| 611 |
// uyvy|uyvy|uyvy|uyvy
|
| 612 |
// 0123 4567 89ab cdef
|
| 613 |
static
|
| 614 |
const vector unsigned char |
| 615 |
demux_u = (const vector unsigned char)AVV(0x10,0x00,0x10,0x00, |
| 616 |
0x10,0x04,0x10,0x04, |
| 617 |
0x10,0x08,0x10,0x08, |
| 618 |
0x10,0x0c,0x10,0x0c), |
| 619 |
demux_v = (const vector unsigned char)AVV(0x10,0x02,0x10,0x02, |
| 620 |
0x10,0x06,0x10,0x06, |
| 621 |
0x10,0x0A,0x10,0x0A, |
| 622 |
0x10,0x0E,0x10,0x0E), |
| 623 |
demux_y = (const vector unsigned char)AVV(0x10,0x01,0x10,0x03, |
| 624 |
0x10,0x05,0x10,0x07, |
| 625 |
0x10,0x09,0x10,0x0B, |
| 626 |
0x10,0x0D,0x10,0x0F); |
| 627 |
|
| 628 |
/*
|
| 629 |
this is so I can play live CCIR raw video
|
| 630 |
*/
|
| 631 |
static int altivec_uyvy_rgb32 (SwsContext *c, |
| 632 |
unsigned char **in, int *instrides, |
| 633 |
int srcSliceY, int srcSliceH, |
| 634 |
unsigned char **oplanes, int *outstrides) |
| 635 |
{
|
| 636 |
int w = c->srcW;
|
| 637 |
int h = srcSliceH;
|
| 638 |
int i,j;
|
| 639 |
vector unsigned char uyvy; |
| 640 |
vector signed short Y,U,V; |
| 641 |
vector signed short R0,G0,B0,R1,G1,B1; |
| 642 |
vector unsigned char R,G,B; |
| 643 |
vector unsigned char *out; |
| 644 |
ubyte *img; |
| 645 |
|
| 646 |
img = in[0];
|
| 647 |
out = (vector unsigned char *)(oplanes[0]+srcSliceY*outstrides[0]); |
| 648 |
|
| 649 |
for (i=0;i<h;i++) { |
| 650 |
for (j=0;j<w/16;j++) { |
| 651 |
uyvy = vec_ld (0, img);
|
| 652 |
U = (vector signed short) |
| 653 |
vec_perm (uyvy, (vector unsigned char)AVV(0), demux_u); |
| 654 |
|
| 655 |
V = (vector signed short) |
| 656 |
vec_perm (uyvy, (vector unsigned char)AVV(0), demux_v); |
| 657 |
|
| 658 |
Y = (vector signed short) |
| 659 |
vec_perm (uyvy, (vector unsigned char)AVV(0), demux_y); |
| 660 |
|
| 661 |
cvtyuvtoRGB (c, Y,U,V,&R0,&G0,&B0); |
| 662 |
|
| 663 |
uyvy = vec_ld (16, img);
|
| 664 |
U = (vector signed short) |
| 665 |
vec_perm (uyvy, (vector unsigned char)AVV(0), demux_u); |
| 666 |
|
| 667 |
V = (vector signed short) |
| 668 |
vec_perm (uyvy, (vector unsigned char)AVV(0), demux_v); |
| 669 |
|
| 670 |
Y = (vector signed short) |
| 671 |
vec_perm (uyvy, (vector unsigned char)AVV(0), demux_y); |
| 672 |
|
| 673 |
cvtyuvtoRGB (c, Y,U,V,&R1,&G1,&B1); |
| 674 |
|
| 675 |
R = vec_packclp (R0,R1); |
| 676 |
G = vec_packclp (G0,G1); |
| 677 |
B = vec_packclp (B0,B1); |
| 678 |
|
| 679 |
// vec_mstbgr24 (R,G,B, out);
|
| 680 |
out_rgba (R,G,B,out); |
| 681 |
|
| 682 |
img += 32;
|
| 683 |
} |
| 684 |
} |
| 685 |
return srcSliceH;
|
| 686 |
} |
| 687 |
|
| 688 |
|
| 689 |
|
| 690 |
/* Ok currently the acceleration routine only supports
|
| 691 |
inputs of widths a multiple of 16
|
| 692 |
and heights a multiple 2
|
| 693 |
|
| 694 |
So we just fall back to the C codes for this.
|
| 695 |
*/
|
| 696 |
SwsFunc yuv2rgb_init_altivec (SwsContext *c) |
| 697 |
{
|
| 698 |
if (!(c->flags & SWS_CPU_CAPS_ALTIVEC))
|
| 699 |
return NULL; |
| 700 |
|
| 701 |
/*
|
| 702 |
and this seems not to matter too much I tried a bunch of
|
| 703 |
videos with abnormal widths and MPlayer crashes elsewhere.
|
| 704 |
mplayer -vo x11 -rawvideo on:w=350:h=240 raw-350x240.eyuv
|
| 705 |
boom with X11 bad match.
|
| 706 |
|
| 707 |
*/
|
| 708 |
if ((c->srcW & 0xf) != 0) return NULL; |
| 709 |
|
| 710 |
switch (c->srcFormat) {
|
| 711 |
case PIX_FMT_YUV410P:
|
| 712 |
case PIX_FMT_YUV420P:
|
| 713 |
/*case IMGFMT_CLPL: ??? */
|
| 714 |
case PIX_FMT_GRAY8:
|
| 715 |
case PIX_FMT_NV12:
|
| 716 |
case PIX_FMT_NV21:
|
| 717 |
if ((c->srcH & 0x1) != 0) |
| 718 |
return NULL; |
| 719 |
|
| 720 |
switch(c->dstFormat){
|
| 721 |
case PIX_FMT_RGB24:
|
| 722 |
av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space RGB24\n");
|
| 723 |
return altivec_yuv2_rgb24;
|
| 724 |
case PIX_FMT_BGR24:
|
| 725 |
av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space BGR24\n");
|
| 726 |
return altivec_yuv2_bgr24;
|
| 727 |
case PIX_FMT_ARGB:
|
| 728 |
av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space ARGB\n");
|
| 729 |
return altivec_yuv2_argb;
|
| 730 |
case PIX_FMT_ABGR:
|
| 731 |
av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space ABGR\n");
|
| 732 |
return altivec_yuv2_abgr;
|
| 733 |
case PIX_FMT_RGBA:
|
| 734 |
av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space RGBA\n");
|
| 735 |
return altivec_yuv2_rgba;
|
| 736 |
case PIX_FMT_BGRA:
|
| 737 |
av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space BGRA\n");
|
| 738 |
return altivec_yuv2_bgra;
|
| 739 |
default: return NULL; |
| 740 |
} |
| 741 |
break;
|
| 742 |
|
| 743 |
case PIX_FMT_UYVY422:
|
| 744 |
switch(c->dstFormat){
|
| 745 |
case PIX_FMT_BGR32:
|
| 746 |
av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space UYVY -> RGB32\n");
|
| 747 |
return altivec_uyvy_rgb32;
|
| 748 |
default: return NULL; |
| 749 |
} |
| 750 |
break;
|
| 751 |
|
| 752 |
} |
| 753 |
return NULL; |
| 754 |
} |
| 755 |
|
| 756 |
void yuv2rgb_altivec_init_tables (SwsContext *c, const int inv_table[4],int brightness,int contrast, int saturation) |
| 757 |
{
|
| 758 |
union {
|
| 759 |
signed short tmp[8] __attribute__ ((aligned(16))); |
| 760 |
vector signed short vec; |
| 761 |
} buf; |
| 762 |
|
| 763 |
buf.tmp[0] = ((0xffffLL) * contrast>>8)>>9; //cy |
| 764 |
buf.tmp[1] = -256*brightness; //oy |
| 765 |
buf.tmp[2] = (inv_table[0]>>3) *(contrast>>16)*(saturation>>16); //crv |
| 766 |
buf.tmp[3] = (inv_table[1]>>3) *(contrast>>16)*(saturation>>16); //cbu |
| 767 |
buf.tmp[4] = -((inv_table[2]>>1)*(contrast>>16)*(saturation>>16)); //cgu |
| 768 |
buf.tmp[5] = -((inv_table[3]>>1)*(contrast>>16)*(saturation>>16)); //cgv |
| 769 |
|
| 770 |
|
| 771 |
c->CSHIFT = (vector unsigned short)vec_splat_u16(2); |
| 772 |
c->CY = vec_splat ((vector signed short)buf.vec, 0); |
| 773 |
c->OY = vec_splat ((vector signed short)buf.vec, 1); |
| 774 |
c->CRV = vec_splat ((vector signed short)buf.vec, 2); |
| 775 |
c->CBU = vec_splat ((vector signed short)buf.vec, 3); |
| 776 |
c->CGU = vec_splat ((vector signed short)buf.vec, 4); |
| 777 |
c->CGV = vec_splat ((vector signed short)buf.vec, 5); |
| 778 |
#if 0
|
| 779 |
{
|
| 780 |
int i;
|
| 781 |
char *v[6]={"cy","oy","crv","cbu","cgu","cgv"};
|
| 782 |
for (i=0; i<6; i++)
|
| 783 |
printf("%s %d ", v[i],buf.tmp[i] );
|
| 784 |
printf("\n");
|
| 785 |
}
|
| 786 |
#endif
|
| 787 |
return;
|
| 788 |
} |
| 789 |
|
| 790 |
|
| 791 |
void
|
| 792 |
altivec_yuv2packedX (SwsContext *c, |
| 793 |
int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
|
| 794 |
int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
|
| 795 |
uint8_t *dest, int dstW, int dstY) |
| 796 |
{
|
| 797 |
int i,j;
|
| 798 |
vector signed short X,X0,X1,Y0,U0,V0,Y1,U1,V1,U,V; |
| 799 |
vector signed short R0,G0,B0,R1,G1,B1; |
| 800 |
|
| 801 |
vector unsigned char R,G,B; |
| 802 |
vector unsigned char *out,*nout; |
| 803 |
|
| 804 |
vector signed short RND = vec_splat_s16(1<<3); |
| 805 |
vector unsigned short SCL = vec_splat_u16(4); |
| 806 |
unsigned long scratch[16] __attribute__ ((aligned (16))); |
| 807 |
|
| 808 |
vector signed short *YCoeffs, *CCoeffs; |
| 809 |
|
| 810 |
YCoeffs = c->vYCoeffsBank+dstY*lumFilterSize; |
| 811 |
CCoeffs = c->vCCoeffsBank+dstY*chrFilterSize; |
| 812 |
|
| 813 |
out = (vector unsigned char *)dest; |
| 814 |
|
| 815 |
for (i=0; i<dstW; i+=16){ |
| 816 |
Y0 = RND; |
| 817 |
Y1 = RND; |
| 818 |
/* extract 16 coeffs from lumSrc */
|
| 819 |
for (j=0; j<lumFilterSize; j++) { |
| 820 |
X0 = vec_ld (0, &lumSrc[j][i]);
|
| 821 |
X1 = vec_ld (16, &lumSrc[j][i]);
|
| 822 |
Y0 = vec_mradds (X0, YCoeffs[j], Y0); |
| 823 |
Y1 = vec_mradds (X1, YCoeffs[j], Y1); |
| 824 |
} |
| 825 |
|
| 826 |
U = RND; |
| 827 |
V = RND; |
| 828 |
/* extract 8 coeffs from U,V */
|
| 829 |
for (j=0; j<chrFilterSize; j++) { |
| 830 |
X = vec_ld (0, &chrSrc[j][i/2]); |
| 831 |
U = vec_mradds (X, CCoeffs[j], U); |
| 832 |
X = vec_ld (0, &chrSrc[j][i/2+2048]); |
| 833 |
V = vec_mradds (X, CCoeffs[j], V); |
| 834 |
} |
| 835 |
|
| 836 |
/* scale and clip signals */
|
| 837 |
Y0 = vec_sra (Y0, SCL); |
| 838 |
Y1 = vec_sra (Y1, SCL); |
| 839 |
U = vec_sra (U, SCL); |
| 840 |
V = vec_sra (V, SCL); |
| 841 |
|
| 842 |
Y0 = vec_clip_s16 (Y0); |
| 843 |
Y1 = vec_clip_s16 (Y1); |
| 844 |
U = vec_clip_s16 (U); |
| 845 |
V = vec_clip_s16 (V); |
| 846 |
|
| 847 |
/* now we have
|
| 848 |
Y0= y0 y1 y2 y3 y4 y5 y6 y7 Y1= y8 y9 y10 y11 y12 y13 y14 y15
|
| 849 |
U= u0 u1 u2 u3 u4 u5 u6 u7 V= v0 v1 v2 v3 v4 v5 v6 v7
|
| 850 |
|
| 851 |
Y0= y0 y1 y2 y3 y4 y5 y6 y7 Y1= y8 y9 y10 y11 y12 y13 y14 y15
|
| 852 |
U0= u0 u0 u1 u1 u2 u2 u3 u3 U1= u4 u4 u5 u5 u6 u6 u7 u7
|
| 853 |
V0= v0 v0 v1 v1 v2 v2 v3 v3 V1= v4 v4 v5 v5 v6 v6 v7 v7
|
| 854 |
*/
|
| 855 |
|
| 856 |
U0 = vec_mergeh (U,U); |
| 857 |
V0 = vec_mergeh (V,V); |
| 858 |
|
| 859 |
U1 = vec_mergel (U,U); |
| 860 |
V1 = vec_mergel (V,V); |
| 861 |
|
| 862 |
cvtyuvtoRGB (c, Y0,U0,V0,&R0,&G0,&B0); |
| 863 |
cvtyuvtoRGB (c, Y1,U1,V1,&R1,&G1,&B1); |
| 864 |
|
| 865 |
R = vec_packclp (R0,R1); |
| 866 |
G = vec_packclp (G0,G1); |
| 867 |
B = vec_packclp (B0,B1); |
| 868 |
|
| 869 |
switch(c->dstFormat) {
|
| 870 |
case PIX_FMT_ABGR: out_abgr (R,G,B,out); break; |
| 871 |
case PIX_FMT_BGRA: out_bgra (R,G,B,out); break; |
| 872 |
case PIX_FMT_RGBA: out_rgba (R,G,B,out); break; |
| 873 |
case PIX_FMT_ARGB: out_argb (R,G,B,out); break; |
| 874 |
case PIX_FMT_RGB24: out_rgb24 (R,G,B,out); break; |
| 875 |
case PIX_FMT_BGR24: out_bgr24 (R,G,B,out); break; |
| 876 |
default:
|
| 877 |
{
|
| 878 |
/* If this is reached, the caller should have called yuv2packedXinC
|
| 879 |
instead. */
|
| 880 |
static int printed_error_message; |
| 881 |
if (!printed_error_message) {
|
| 882 |
av_log(c, AV_LOG_ERROR, "altivec_yuv2packedX doesn't support %s output\n",
|
| 883 |
sws_format_name(c->dstFormat)); |
| 884 |
printed_error_message=1;
|
| 885 |
} |
| 886 |
return;
|
| 887 |
} |
| 888 |
} |
| 889 |
} |
| 890 |
|
| 891 |
if (i < dstW) {
|
| 892 |
i -= 16;
|
| 893 |
|
| 894 |
Y0 = RND; |
| 895 |
Y1 = RND; |
| 896 |
/* extract 16 coeffs from lumSrc */
|
| 897 |
for (j=0; j<lumFilterSize; j++) { |
| 898 |
X0 = vec_ld (0, &lumSrc[j][i]);
|
| 899 |
X1 = vec_ld (16, &lumSrc[j][i]);
|
| 900 |
Y0 = vec_mradds (X0, YCoeffs[j], Y0); |
| 901 |
Y1 = vec_mradds (X1, YCoeffs[j], Y1); |
| 902 |
} |
| 903 |
|
| 904 |
U = RND; |
| 905 |
V = RND; |
| 906 |
/* extract 8 coeffs from U,V */
|
| 907 |
for (j=0; j<chrFilterSize; j++) { |
| 908 |
X = vec_ld (0, &chrSrc[j][i/2]); |
| 909 |
U = vec_mradds (X, CCoeffs[j], U); |
| 910 |
X = vec_ld (0, &chrSrc[j][i/2+2048]); |
| 911 |
V = vec_mradds (X, CCoeffs[j], V); |
| 912 |
} |
| 913 |
|
| 914 |
/* scale and clip signals */
|
| 915 |
Y0 = vec_sra (Y0, SCL); |
| 916 |
Y1 = vec_sra (Y1, SCL); |
| 917 |
U = vec_sra (U, SCL); |
| 918 |
V = vec_sra (V, SCL); |
| 919 |
|
| 920 |
Y0 = vec_clip_s16 (Y0); |
| 921 |
Y1 = vec_clip_s16 (Y1); |
| 922 |
U = vec_clip_s16 (U); |
| 923 |
V = vec_clip_s16 (V); |
| 924 |
|
| 925 |
/* now we have
|
| 926 |
Y0= y0 y1 y2 y3 y4 y5 y6 y7 Y1= y8 y9 y10 y11 y12 y13 y14 y15
|
| 927 |
U = u0 u1 u2 u3 u4 u5 u6 u7 V = v0 v1 v2 v3 v4 v5 v6 v7
|
| 928 |
|
| 929 |
Y0= y0 y1 y2 y3 y4 y5 y6 y7 Y1= y8 y9 y10 y11 y12 y13 y14 y15
|
| 930 |
U0= u0 u0 u1 u1 u2 u2 u3 u3 U1= u4 u4 u5 u5 u6 u6 u7 u7
|
| 931 |
V0= v0 v0 v1 v1 v2 v2 v3 v3 V1= v4 v4 v5 v5 v6 v6 v7 v7
|
| 932 |
*/
|
| 933 |
|
| 934 |
U0 = vec_mergeh (U,U); |
| 935 |
V0 = vec_mergeh (V,V); |
| 936 |
|
| 937 |
U1 = vec_mergel (U,U); |
| 938 |
V1 = vec_mergel (V,V); |
| 939 |
|
| 940 |
cvtyuvtoRGB (c, Y0,U0,V0,&R0,&G0,&B0); |
| 941 |
cvtyuvtoRGB (c, Y1,U1,V1,&R1,&G1,&B1); |
| 942 |
|
| 943 |
R = vec_packclp (R0,R1); |
| 944 |
G = vec_packclp (G0,G1); |
| 945 |
B = vec_packclp (B0,B1); |
| 946 |
|
| 947 |
nout = (vector unsigned char *)scratch; |
| 948 |
switch(c->dstFormat) {
|
| 949 |
case PIX_FMT_ABGR: out_abgr (R,G,B,nout); break; |
| 950 |
case PIX_FMT_BGRA: out_bgra (R,G,B,nout); break; |
| 951 |
case PIX_FMT_RGBA: out_rgba (R,G,B,nout); break; |
| 952 |
case PIX_FMT_ARGB: out_argb (R,G,B,nout); break; |
| 953 |
case PIX_FMT_RGB24: out_rgb24 (R,G,B,nout); break; |
| 954 |
case PIX_FMT_BGR24: out_bgr24 (R,G,B,nout); break; |
| 955 |
default:
|
| 956 |
/* Unreachable, I think. */
|
| 957 |
av_log(c, AV_LOG_ERROR, "altivec_yuv2packedX doesn't support %s output\n",
|
| 958 |
sws_format_name(c->dstFormat)); |
| 959 |
return;
|
| 960 |
} |
| 961 |
|
| 962 |
memcpy (&((uint32_t*)dest)[i], scratch, (dstW-i)/4);
|
| 963 |
} |
| 964 |
|
| 965 |
} |