855 lines
37 KiB
C
Executable file
855 lines
37 KiB
C
Executable file
/*
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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
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License 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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*
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* Lots of optimizations to be done here.
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*
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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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*
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* 2. The inefficient use of chroma loading needs a bit of brushing up.
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*
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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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*
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*
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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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*
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* ADDED altivec_yuv2packedX vertical scl + RGB converter
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*
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* March 27,2004
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* PERFORMANCE ANALYSIS
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*
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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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*
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* 720 * 480 * 30 ~10MPS
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*
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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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*
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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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*
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* OPTIMIZED DST OUTPUT cache/DMA controls. We are pretty much guaranteed to
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* have the input video frame, it was just decompressed so it probably resides
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* in L1 caches. However, we are creating the output video stream. This needs
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* to use the DSTST instruction to optimize for the cache. We couple this with
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* the fact that we are not going to be visiting the input buffer again so we
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* mark it Least Recently Used. This shaves 25% of the processor cycles off.
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*
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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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*
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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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*
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* GL2 libraries work now with patch for RGB32.
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*
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* NOTE: quartz vo driver ARGB32_to_RGB24 consumes 30% of the processor.
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*
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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 "config.h"
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#include "libswscale/rgb2rgb.h"
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#include "libswscale/swscale.h"
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#include "libswscale/swscale_internal.h"
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#include "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/pixdesc.h"
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#include "yuv2rgb_altivec.h"
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#if HAVE_ALTIVEC
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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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*
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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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*
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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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*
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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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*
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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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*
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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 const vector unsigned char
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perm_rgb_0 = { 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 = { 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 = { 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 = { 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, \
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(vector unsigned short) _1); \
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_3 = (T) vec_mergel((vector unsigned short) _0, \
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(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, \
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(vector unsigned short) _1); \
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_3 = (T) vec_mergel((vector unsigned short) _0, \
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(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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*
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*
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* Y: [-128 127]
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* Cb/Cr : [-128 127]
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*
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* typical YUV conversion works on Y: 0-255 this version has been
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* optimized for JPEG decoding.
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*/
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#if HAVE_BIGENDIAN
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#define vec_unh(x) \
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(vector signed short) \
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vec_perm(x, (__typeof__(x)) { 0 }, \
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((vector unsigned char) { \
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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)) { 0 }, \
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((vector unsigned char) { \
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0x10, 0x08, 0x10, 0x09, 0x10, 0x0A, 0x10, 0x0B, \
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0x10, 0x0C, 0x10, 0x0D, 0x10, 0x0E, 0x10, 0x0F }))
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#else
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#define vec_unh(x)(vector signed short) vec_mergeh(x,(__typeof__(x)) { 0 })
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#define vec_unl(x)(vector signed short) vec_mergel(x,(__typeof__(x)) { 0 })
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#endif
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#define vec_clip_s16(x) \
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vec_max(vec_min(x, ((vector signed short) { \
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235, 235, 235, 235, 235, 235, 235, 235 })), \
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((vector signed short) { 16, 16, 16, 16, 16, 16, 16, 16 }))
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#define vec_packclp(x, y) \
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(vector unsigned char) \
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vec_packs((vector unsigned short) \
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vec_max(x, ((vector signed short) { 0 })), \
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(vector unsigned short) \
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vec_max(y, ((vector signed short) { 0 })))
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static inline void cvtyuvtoRGB(SwsContext *c, vector signed short Y,
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vector signed short U, vector signed short V,
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vector signed short *R, vector signed short *G,
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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) { 128 }, 0));
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V = vec_sub(V, (vector signed short)
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vec_splat((vector signed short) { 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, const unsigned char **in, \
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int *instrides, 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 signed short lCY = c->CY; \
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vector signed short lOY = c->OY; \
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vector signed short lCRV = c->CRV; \
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vector signed short lCBU = c->CBU; \
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vector signed short lCGU = c->CGU; \
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vector signed short lCGV = c->CGV; \
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vector unsigned short lCSHIFT = c->CSHIFT; \
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\
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const ubyte *y1i = in[0]; \
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const ubyte *y2i = in[0] + instrides[0]; \
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const ubyte *ui = in[1]; \
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const ubyte *vi = in[2]; \
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\
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vector unsigned char *oute, *outo; \
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\
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/* loop moves y{1, 2}i by w */ \
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instrides_scl[0] = instrides[0] * 2 - w; \
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/* loop moves ui by w / 2 */ \
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instrides_scl[1] = instrides[1] - w / 2; \
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/* loop moves vi by w / 2 */ \
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instrides_scl[2] = instrides[2] - w / 2; \
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\
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for (i = 0; i < h / 2; i++) { \
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oute = (vector unsigned char *)(oplanes[0] + outstrides[0] * \
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(srcSliceY + i * 2)); \
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outo = oute + (outstrides[0] >> 4); \
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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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y0 = vec_xl(0, y1i); \
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\
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y1 = vec_xl(0, y2i); \
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\
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u = (vector signed char) vec_xl(0, ui); \
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\
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v = (vector signed char) vec_xl(0, vi); \
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\
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u = (vector signed char) \
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vec_sub(u, \
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(vector signed char) \
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vec_splat((vector signed char) { 128 }, 0)); \
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v = (vector signed char) \
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vec_sub(v, \
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(vector signed char) \
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vec_splat((vector signed char) { 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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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) { 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) { 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) { 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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\
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out_pixels(R, G, B, oute); \
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\
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R0 = vec_add(Y2, vx0); \
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G0 = vec_add(Y2, uvx0); \
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B0 = vec_add(Y2, ux0); \
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R1 = vec_add(Y3, vx1); \
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G1 = vec_add(Y3, uvx1); \
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B1 = vec_add(Y3, ux1); \
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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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\
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\
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out_pixels(R, G, B, outo); \
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\
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y1i += 16; \
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y2i += 16; \
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ui += 8; \
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vi += 8; \
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} \
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\
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ui += instrides_scl[1]; \
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vi += instrides_scl[2]; \
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y1i += instrides_scl[0]; \
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y2i += instrides_scl[0]; \
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} \
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return srcSliceH; \
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}
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#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 */
|