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/*
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 * DSP utils
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 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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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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 * @file
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 * DSP utils.
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 * note, many functions in here may use MMX which trashes the FPU state, it is
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 * absolutely necessary to call emms_c() between dsp & float/double code
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 */
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#ifndef AVCODEC_DSPUTIL_H
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#define AVCODEC_DSPUTIL_H
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#include "libavutil/intreadwrite.h"
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#include "avcodec.h"
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//#define DEBUG
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/* dct code */
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typedef short DCTELEM;
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void fdct_ifast (DCTELEM *data);
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void fdct_ifast248 (DCTELEM *data);
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void ff_jpeg_fdct_islow (DCTELEM *data);
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void ff_fdct248_islow (DCTELEM *data);
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void j_rev_dct (DCTELEM *data);
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void j_rev_dct4 (DCTELEM *data);
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void j_rev_dct2 (DCTELEM *data);
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void j_rev_dct1 (DCTELEM *data);
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void ff_wmv2_idct_c(DCTELEM *data);
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void ff_fdct_mmx(DCTELEM *block);
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void ff_fdct_mmx2(DCTELEM *block);
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void ff_fdct_sse2(DCTELEM *block);
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void ff_h264_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride);
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void ff_h264_idct_add_c(uint8_t *dst, DCTELEM *block, int stride);
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void ff_h264_idct8_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
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void ff_h264_idct_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
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void ff_h264_lowres_idct_add_c(uint8_t *dst, int stride, DCTELEM *block);
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void ff_h264_lowres_idct_put_c(uint8_t *dst, int stride, DCTELEM *block);
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void ff_h264_idct_add16_c(uint8_t *dst, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);
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void ff_h264_idct_add16intra_c(uint8_t *dst, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);
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void ff_h264_idct8_add4_c(uint8_t *dst, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);
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void ff_h264_idct_add8_c(uint8_t **dest, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);
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void ff_h264_luma_dc_dequant_idct_c(DCTELEM *output, DCTELEM *input, int qmul);
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void ff_svq3_luma_dc_dequant_idct_c(DCTELEM *output, DCTELEM *input, int qp);
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void ff_svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc);
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/* encoding scans */
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extern const uint8_t ff_alternate_horizontal_scan[64];
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extern const uint8_t ff_alternate_vertical_scan[64];
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extern const uint8_t ff_zigzag_direct[64];
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extern const uint8_t ff_zigzag248_direct[64];
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/* pixel operations */
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#define MAX_NEG_CROP 1024
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/* temporary */
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extern uint32_t ff_squareTbl[512];
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extern uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP];
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void ff_put_pixels8x8_c(uint8_t *dst, uint8_t *src, int stride);
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void ff_avg_pixels8x8_c(uint8_t *dst, uint8_t *src, int stride);
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void ff_put_pixels16x16_c(uint8_t *dst, uint8_t *src, int stride);
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void ff_avg_pixels16x16_c(uint8_t *dst, uint8_t *src, int stride);
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/* VP3 DSP functions */
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void ff_vp3_idct_c(DCTELEM *block/* align 16*/);
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void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
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void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
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void ff_vp3_idct_dc_add_c(uint8_t *dest/*align 8*/, int line_size, const DCTELEM *block/*align 16*/);
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void ff_vp3_v_loop_filter_c(uint8_t *src, int stride, int *bounding_values);
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void ff_vp3_h_loop_filter_c(uint8_t *src, int stride, int *bounding_values);
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/* Bink functions */
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void ff_bink_idct_c    (DCTELEM *block);
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void ff_bink_idct_add_c(uint8_t *dest, int linesize, DCTELEM *block);
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void ff_bink_idct_put_c(uint8_t *dest, int linesize, DCTELEM *block);
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/* EA functions */
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void ff_ea_idct_put_c(uint8_t *dest, int linesize, DCTELEM *block);
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/* 1/2^n downscaling functions from imgconvert.c */
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#if LIBAVCODEC_VERSION_MAJOR < 53
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/**
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 * @deprecated Use av_image_copy_plane() instead.
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 */
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attribute_deprecated
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void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
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#endif
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void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
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void ff_shrink44(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
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void ff_shrink88(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
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void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
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              int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
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/* minimum alignment rules ;)
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If you notice errors in the align stuff, need more alignment for some ASM code
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for some CPU or need to use a function with less aligned data then send a mail
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to the ffmpeg-devel mailing list, ...
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!warning These alignments might not match reality, (missing attribute((align))
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stuff somewhere possible).
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I (Michael) did not check them, these are just the alignments which I think
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could be reached easily ...
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!future video codecs might need functions with less strict alignment
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*/
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/*
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void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
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void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
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void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
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void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
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void clear_blocks_c(DCTELEM *blocks);
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*/
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/* add and put pixel (decoding) */
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// blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
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//h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
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typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
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typedef void (*tpel_mc_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int w, int h);
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typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
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typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
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typedef void (*op_fill_func)(uint8_t *block/*align width (8 or 16)*/, uint8_t value, int line_size, int h);
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#define DEF_OLD_QPEL(name)\
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void ff_put_        ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
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void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
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void ff_avg_        ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
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DEF_OLD_QPEL(qpel16_mc11_old_c)
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DEF_OLD_QPEL(qpel16_mc31_old_c)
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DEF_OLD_QPEL(qpel16_mc12_old_c)
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DEF_OLD_QPEL(qpel16_mc32_old_c)
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DEF_OLD_QPEL(qpel16_mc13_old_c)
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DEF_OLD_QPEL(qpel16_mc33_old_c)
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DEF_OLD_QPEL(qpel8_mc11_old_c)
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DEF_OLD_QPEL(qpel8_mc31_old_c)
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DEF_OLD_QPEL(qpel8_mc12_old_c)
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DEF_OLD_QPEL(qpel8_mc32_old_c)
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DEF_OLD_QPEL(qpel8_mc13_old_c)
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DEF_OLD_QPEL(qpel8_mc33_old_c)
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#define CALL_2X_PIXELS(a, b, n)\
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static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
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    b(block  , pixels  , line_size, h);\
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    b(block+n, pixels+n, line_size, h);\
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}
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/* motion estimation */
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// h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
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// although currently h<4 is not used as functions with width <8 are neither used nor implemented
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typedef int (*me_cmp_func)(void /*MpegEncContext*/ *s, uint8_t *blk1/*align width (8 or 16)*/, uint8_t *blk2/*align 1*/, int line_size, int h)/* __attribute__ ((const))*/;
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/**
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 * Scantable.
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 */
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typedef struct ScanTable{
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    const uint8_t *scantable;
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    uint8_t permutated[64];
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    uint8_t raster_end[64];
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#if ARCH_PPC
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                /** Used by dct_quantize_altivec to find last-non-zero */
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    DECLARE_ALIGNED(16, uint8_t, inverse)[64];
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#endif
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} ScanTable;
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void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
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void ff_emulated_edge_mc(uint8_t *buf, const uint8_t *src, int linesize,
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                         int block_w, int block_h,
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                         int src_x, int src_y, int w, int h);
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/**
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 * DSPContext.
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 */
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typedef struct DSPContext {
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    /* pixel ops : interface with DCT */
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    void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
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    void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
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    void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
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    void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
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    void (*put_pixels_nonclamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
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    void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
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    void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);
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    void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);
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    int (*sum_abs_dctelem)(DCTELEM *block/*align 16*/);
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    /**
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     * Motion estimation with emulated edge values.
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     * @param buf pointer to destination buffer (unaligned)
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     * @param src pointer to pixel source (unaligned)
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     * @param linesize width (in pixels) for src/buf
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     * @param block_w number of pixels (per row) to copy to buf
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     * @param block_h nummber of pixel rows to copy to buf
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     * @param src_x offset of src to start of row - this may be negative
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     * @param src_y offset of src to top of image - this may be negative
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     * @param w width of src in pixels
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     * @param h height of src in pixels
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     */
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    void (*emulated_edge_mc)(uint8_t *buf, const uint8_t *src, int linesize,
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                             int block_w, int block_h,
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                             int src_x, int src_y, int w, int h);
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    /**
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     * translational global motion compensation.
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     */
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    void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
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    /**
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     * global motion compensation.
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     */
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    void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
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                    int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
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    void (*clear_block)(DCTELEM *block/*align 16*/);
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    void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
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    int (*pix_sum)(uint8_t * pix, int line_size);
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    int (*pix_norm1)(uint8_t * pix, int line_size);
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// 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
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    me_cmp_func sad[6]; /* identical to pix_absAxA except additional void * */
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    me_cmp_func sse[6];
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    me_cmp_func hadamard8_diff[6];
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    me_cmp_func dct_sad[6];
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    me_cmp_func quant_psnr[6];
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    me_cmp_func bit[6];
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    me_cmp_func rd[6];
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    me_cmp_func vsad[6];
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    me_cmp_func vsse[6];
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    me_cmp_func nsse[6];
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    me_cmp_func w53[6];
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    me_cmp_func w97[6];
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    me_cmp_func dct_max[6];
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    me_cmp_func dct264_sad[6];
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    me_cmp_func me_pre_cmp[6];
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    me_cmp_func me_cmp[6];
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    me_cmp_func me_sub_cmp[6];
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    me_cmp_func mb_cmp[6];
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    me_cmp_func ildct_cmp[6]; //only width 16 used
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    me_cmp_func frame_skip_cmp[6]; //only width 8 used
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    int (*ssd_int8_vs_int16)(const int8_t *pix1, const int16_t *pix2,
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                             int size);
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    /**
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     * Halfpel motion compensation with rounding (a+b+1)>>1.
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     * this is an array[4][4] of motion compensation functions for 4
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     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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     * @param block destination where the result is stored
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    op_pixels_func put_pixels_tab[4][4];
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    /**
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     * Halfpel motion compensation with rounding (a+b+1)>>1.
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     * This is an array[4][4] of motion compensation functions for 4
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     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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     * @param block destination into which the result is averaged (a+b+1)>>1
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    op_pixels_func avg_pixels_tab[4][4];
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    /**
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     * Halfpel motion compensation with no rounding (a+b)>>1.
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     * this is an array[2][4] of motion compensation functions for 2
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     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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     * @param block destination where the result is stored
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    op_pixels_func put_no_rnd_pixels_tab[4][4];
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    /**
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     * Halfpel motion compensation with no rounding (a+b)>>1.
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     * this is an array[2][4] of motion compensation functions for 2
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     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
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     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
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     * @param block destination into which the result is averaged (a+b)>>1
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    op_pixels_func avg_no_rnd_pixels_tab[4][4];
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    void (*put_no_rnd_pixels_l2[2])(uint8_t *block/*align width (8 or 16)*/, const uint8_t *a/*align 1*/, const uint8_t *b/*align 1*/, int line_size, int h);
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    /**
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     * Thirdpel motion compensation with rounding (a+b+1)>>1.
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     * this is an array[12] of motion compensation functions for the 9 thirdpe
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     * positions<br>
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     * *pixels_tab[ xthirdpel + 4*ythirdpel ]
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     * @param block destination where the result is stored
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     * @param pixels source
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     * @param line_size number of bytes in a horizontal line of block
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     * @param h height
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     */
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    tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
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    tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
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    qpel_mc_func put_qpel_pixels_tab[2][16];
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    qpel_mc_func avg_qpel_pixels_tab[2][16];
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    qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
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    qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
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    qpel_mc_func put_mspel_pixels_tab[8];
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    /**
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     * h264 Chroma MC
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     */
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    h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
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    h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
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    qpel_mc_func put_h264_qpel_pixels_tab[4][16];
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    qpel_mc_func avg_h264_qpel_pixels_tab[4][16];
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    qpel_mc_func put_2tap_qpel_pixels_tab[4][16];
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    qpel_mc_func avg_2tap_qpel_pixels_tab[4][16];
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    me_cmp_func pix_abs[2][4];
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    /* huffyuv specific */
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    void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
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    void (*add_bytes_l2)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 16*/, int w);
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    void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
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    /**
358
     * subtract huffyuv's variant of median prediction
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     * note, this might read from src1[-1], src2[-1]
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     */
361
    void (*sub_hfyu_median_prediction)(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w, int *left, int *left_top);
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    void (*add_hfyu_median_prediction)(uint8_t *dst, const uint8_t *top, const uint8_t *diff, int w, int *left, int *left_top);
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    int  (*add_hfyu_left_prediction)(uint8_t *dst, const uint8_t *src, int w, int left);
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    void (*add_hfyu_left_prediction_bgr32)(uint8_t *dst, const uint8_t *src, int w, int *red, int *green, int *blue, int *alpha);
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    /* this might write to dst[w] */
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    void (*add_png_paeth_prediction)(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp);
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    void (*bswap_buf)(uint32_t *dst, const uint32_t *src, int w);
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    void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
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    void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
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    void (*h261_loop_filter)(uint8_t *src, int stride);
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    void (*x8_v_loop_filter)(uint8_t *src, int stride, int qscale);
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    void (*x8_h_loop_filter)(uint8_t *src, int stride, int qscale);
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    void (*vp3_idct_dc_add)(uint8_t *dest/*align 8*/, int line_size, const DCTELEM *block/*align 16*/);
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    void (*vp3_v_loop_filter)(uint8_t *src, int stride, int *bounding_values);
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    void (*vp3_h_loop_filter)(uint8_t *src, int stride, int *bounding_values);
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    /* assume len is a multiple of 4, and arrays are 16-byte aligned */
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    void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
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    void (*ac3_downmix)(float (*samples)[256], float (*matrix)[2], int out_ch, int in_ch, int len);
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    /* assume len is a multiple of 8, and arrays are 16-byte aligned */
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    void (*vector_fmul)(float *dst, const float *src0, const float *src1, int len);
386
    void (*vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len);
387
    /* assume len is a multiple of 8, and src arrays are 16-byte aligned */
388
    void (*vector_fmul_add)(float *dst, const float *src0, const float *src1, const float *src2, int len);
389
    /* assume len is a multiple of 4, and arrays are 16-byte aligned */
390
    void (*vector_fmul_window)(float *dst, const float *src0, const float *src1, const float *win, int len);
391
    /* assume len is a multiple of 8, and arrays are 16-byte aligned */
392
    void (*vector_clipf)(float *dst /* align 16 */, const float *src /* align 16 */, float min, float max, int len /* align 16 */);
393
    /**
394
     * Multiply a vector of floats by a scalar float.  Source and
395
     * destination vectors must overlap exactly or not at all.
396
     * @param dst result vector, 16-byte aligned
397
     * @param src input vector, 16-byte aligned
398
     * @param mul scalar value
399
     * @param len length of vector, multiple of 4
400
     */
401
    void (*vector_fmul_scalar)(float *dst, const float *src, float mul,
402
                               int len);
403
    /**
404
     * Multiply a vector of floats by concatenated short vectors of
405
     * floats and by a scalar float.  Source and destination vectors
406
     * must overlap exactly or not at all.
407
     * [0]: short vectors of length 2, 8-byte aligned
408
     * [1]: short vectors of length 4, 16-byte aligned
409
     * @param dst output vector, 16-byte aligned
410
     * @param src input vector, 16-byte aligned
411
     * @param sv  array of pointers to short vectors
412
     * @param mul scalar value
413
     * @param len number of elements in src and dst, multiple of 4
414
     */
415
    void (*vector_fmul_sv_scalar[2])(float *dst, const float *src,
416
                                     const float **sv, float mul, int len);
417
    /**
418
     * Multiply short vectors of floats by a scalar float, store
419
     * concatenated result.
420
     * [0]: short vectors of length 2, 8-byte aligned
421
     * [1]: short vectors of length 4, 16-byte aligned
422
     * @param dst output vector, 16-byte aligned
423
     * @param sv  array of pointers to short vectors
424
     * @param mul scalar value
425
     * @param len number of output elements, multiple of 4
426
     */
427
    void (*sv_fmul_scalar[2])(float *dst, const float **sv,
428
                              float mul, int len);
429
    /**
430
     * Calculate the scalar product of two vectors of floats.
431
     * @param v1  first vector, 16-byte aligned
432
     * @param v2  second vector, 16-byte aligned
433
     * @param len length of vectors, multiple of 4
434
     */
435
    float (*scalarproduct_float)(const float *v1, const float *v2, int len);
436
    /**
437
     * Calculate the sum and difference of two vectors of floats.
438
     * @param v1  first input vector, sum output, 16-byte aligned
439
     * @param v2  second input vector, difference output, 16-byte aligned
440
     * @param len length of vectors, multiple of 4
441
     */
442
    void (*butterflies_float)(float *restrict v1, float *restrict v2, int len);
443

    
444
    /* (I)DCT */
445
    void (*fdct)(DCTELEM *block/* align 16*/);
446
    void (*fdct248)(DCTELEM *block/* align 16*/);
447

    
448
    /* IDCT really*/
449
    void (*idct)(DCTELEM *block/* align 16*/);
450

    
451
    /**
452
     * block -> idct -> clip to unsigned 8 bit -> dest.
453
     * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
454
     * @param line_size size in bytes of a horizontal line of dest
455
     */
456
    void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
457

    
458
    /**
459
     * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
460
     * @param line_size size in bytes of a horizontal line of dest
461
     */
462
    void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
463

    
464
    /**
465
     * idct input permutation.
466
     * several optimized IDCTs need a permutated input (relative to the normal order of the reference
467
     * IDCT)
468
     * this permutation must be performed before the idct_put/add, note, normally this can be merged
469
     * with the zigzag/alternate scan<br>
470
     * an example to avoid confusion:
471
     * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
472
     * - (x -> referece dct -> reference idct -> x)
473
     * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
474
     * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
475
     */
476
    uint8_t idct_permutation[64];
477
    int idct_permutation_type;
478
#define FF_NO_IDCT_PERM 1
479
#define FF_LIBMPEG2_IDCT_PERM 2
480
#define FF_SIMPLE_IDCT_PERM 3
481
#define FF_TRANSPOSE_IDCT_PERM 4
482
#define FF_PARTTRANS_IDCT_PERM 5
483
#define FF_SSE2_IDCT_PERM 6
484

    
485
    int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
486
    void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
487
#define BASIS_SHIFT 16
488
#define RECON_SHIFT 6
489

    
490
    void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
491
#define EDGE_WIDTH 16
492

    
493
    void (*prefetch)(void *mem, int stride, int h);
494

    
495
    void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
496

    
497
    /* mlp/truehd functions */
498
    void (*mlp_filter_channel)(int32_t *state, const int32_t *coeff,
499
                               int firorder, int iirorder,
500
                               unsigned int filter_shift, int32_t mask, int blocksize,
501
                               int32_t *sample_buffer);
502

    
503
    /* intrax8 functions */
504
    void (*x8_spatial_compensation[12])(uint8_t *src , uint8_t *dst, int linesize);
505
    void (*x8_setup_spatial_compensation)(uint8_t *src, uint8_t *dst, int linesize,
506
           int * range, int * sum,  int edges);
507

    
508
    /**
509
     * Calculate scalar product of two vectors.
510
     * @param len length of vectors, should be multiple of 16
511
     * @param shift number of bits to discard from product
512
     */
513
    int32_t (*scalarproduct_int16)(const int16_t *v1, const int16_t *v2/*align 16*/, int len, int shift);
514
    /* ape functions */
515
    /**
516
     * Calculate scalar product of v1 and v2,
517
     * and v1[i] += v3[i] * mul
518
     * @param len length of vectors, should be multiple of 16
519
     */
520
    int32_t (*scalarproduct_and_madd_int16)(int16_t *v1/*align 16*/, const int16_t *v2, const int16_t *v3, int len, int mul);
521

    
522
    /* rv30 functions */
523
    qpel_mc_func put_rv30_tpel_pixels_tab[4][16];
524
    qpel_mc_func avg_rv30_tpel_pixels_tab[4][16];
525

    
526
    /* rv40 functions */
527
    qpel_mc_func put_rv40_qpel_pixels_tab[4][16];
528
    qpel_mc_func avg_rv40_qpel_pixels_tab[4][16];
529
    h264_chroma_mc_func put_rv40_chroma_pixels_tab[3];
530
    h264_chroma_mc_func avg_rv40_chroma_pixels_tab[3];
531

    
532
    /* bink functions */
533
    op_fill_func fill_block_tab[2];
534
    void (*scale_block)(const uint8_t src[64]/*align 8*/, uint8_t *dst/*align 8*/, int linesize);
535
} DSPContext;
536

    
537
void dsputil_static_init(void);
538
void dsputil_init(DSPContext* p, AVCodecContext *avctx);
539

    
540
int ff_check_alignment(void);
541

    
542
/**
543
 * permute block according to permuatation.
544
 * @param last last non zero element in scantable order
545
 */
546
void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
547

    
548
void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
549

    
550
#define         BYTE_VEC32(c)   ((c)*0x01010101UL)
551

    
552
static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
553
{
554
    return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
555
}
556

    
557
static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
558
{
559
    return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
560
}
561

    
562
static inline int get_penalty_factor(int lambda, int lambda2, int type){
563
    switch(type&0xFF){
564
    default:
565
    case FF_CMP_SAD:
566
        return lambda>>FF_LAMBDA_SHIFT;
567
    case FF_CMP_DCT:
568
        return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
569
    case FF_CMP_W53:
570
        return (4*lambda)>>(FF_LAMBDA_SHIFT);
571
    case FF_CMP_W97:
572
        return (2*lambda)>>(FF_LAMBDA_SHIFT);
573
    case FF_CMP_SATD:
574
    case FF_CMP_DCT264:
575
        return (2*lambda)>>FF_LAMBDA_SHIFT;
576
    case FF_CMP_RD:
577
    case FF_CMP_PSNR:
578
    case FF_CMP_SSE:
579
    case FF_CMP_NSSE:
580
        return lambda2>>FF_LAMBDA_SHIFT;
581
    case FF_CMP_BIT:
582
        return 1;
583
    }
584
}
585

    
586
/**
587
 * Empty mmx state.
588
 * this must be called between any dsp function and float/double code.
589
 * for example sin(); dsp->idct_put(); emms_c(); cos()
590
 */
591
#define emms_c()
592

    
593
void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
594
void dsputil_init_arm(DSPContext* c, AVCodecContext *avctx);
595
void dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx);
596
void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
597
void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
598
void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
599
void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
600
void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
601
void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
602

    
603
void ff_dsputil_init_dwt(DSPContext *c);
604
void ff_rv30dsp_init(DSPContext* c, AVCodecContext *avctx);
605
void ff_rv40dsp_init(DSPContext* c, AVCodecContext *avctx);
606
void ff_intrax8dsp_init(DSPContext* c, AVCodecContext *avctx);
607
void ff_mlp_init(DSPContext* c, AVCodecContext *avctx);
608
void ff_mlp_init_x86(DSPContext* c, AVCodecContext *avctx);
609

    
610
#if HAVE_MMX
611

    
612
#undef emms_c
613

    
614
static inline void emms(void)
615
{
616
    __asm__ volatile ("emms;":::"memory");
617
}
618

    
619
#define emms_c() emms()
620

    
621
#elif ARCH_ARM
622

    
623
#if HAVE_NEON
624
#   define STRIDE_ALIGN 16
625
#endif
626

    
627
#elif ARCH_PPC
628

    
629
#define STRIDE_ALIGN 16
630

    
631
#elif HAVE_MMI
632

    
633
#define STRIDE_ALIGN 16
634

    
635
#endif
636

    
637
#ifndef STRIDE_ALIGN
638
#   define STRIDE_ALIGN 8
639
#endif
640

    
641
#define LOCAL_ALIGNED_A(a, t, v, s, o, ...)             \
642
    uint8_t la_##v[sizeof(t s o) + (a)];                \
643
    t (*v) o = (void *)FFALIGN((uintptr_t)la_##v, a)
644

    
645
#define LOCAL_ALIGNED_D(a, t, v, s, o, ...) DECLARE_ALIGNED(a, t, v) s o
646

    
647
#define LOCAL_ALIGNED(a, t, v, ...) LOCAL_ALIGNED_A(a, t, v, __VA_ARGS__,,)
648

    
649
#if HAVE_LOCAL_ALIGNED_8
650
#   define LOCAL_ALIGNED_8(t, v, ...) LOCAL_ALIGNED_D(8, t, v, __VA_ARGS__,,)
651
#else
652
#   define LOCAL_ALIGNED_8(t, v, ...) LOCAL_ALIGNED(8, t, v, __VA_ARGS__)
653
#endif
654

    
655
#if HAVE_LOCAL_ALIGNED_16
656
#   define LOCAL_ALIGNED_16(t, v, ...) LOCAL_ALIGNED_D(16, t, v, __VA_ARGS__,,)
657
#else
658
#   define LOCAL_ALIGNED_16(t, v, ...) LOCAL_ALIGNED(16, t, v, __VA_ARGS__)
659
#endif
660

    
661
/* PSNR */
662
void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
663
              int orig_linesize[3], int coded_linesize,
664
              AVCodecContext *avctx);
665

    
666
#define WRAPPER8_16(name8, name16)\
667
static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
668
    return name8(s, dst           , src           , stride, h)\
669
          +name8(s, dst+8         , src+8         , stride, h);\
670
}
671

    
672
#define WRAPPER8_16_SQ(name8, name16)\
673
static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
674
    int score=0;\
675
    score +=name8(s, dst           , src           , stride, 8);\
676
    score +=name8(s, dst+8         , src+8         , stride, 8);\
677
    if(h==16){\
678
        dst += 8*stride;\
679
        src += 8*stride;\
680
        score +=name8(s, dst           , src           , stride, 8);\
681
        score +=name8(s, dst+8         , src+8         , stride, 8);\
682
    }\
683
    return score;\
684
}
685

    
686

    
687
static inline void copy_block2(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h)
688
{
689
    int i;
690
    for(i=0; i<h; i++)
691
    {
692
        AV_WN16(dst   , AV_RN16(src   ));
693
        dst+=dstStride;
694
        src+=srcStride;
695
    }
696
}
697

    
698
static inline void copy_block4(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h)
699
{
700
    int i;
701
    for(i=0; i<h; i++)
702
    {
703
        AV_WN32(dst   , AV_RN32(src   ));
704
        dst+=dstStride;
705
        src+=srcStride;
706
    }
707
}
708

    
709
static inline void copy_block8(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h)
710
{
711
    int i;
712
    for(i=0; i<h; i++)
713
    {
714
        AV_WN32(dst   , AV_RN32(src   ));
715
        AV_WN32(dst+4 , AV_RN32(src+4 ));
716
        dst+=dstStride;
717
        src+=srcStride;
718
    }
719
}
720

    
721
static inline void copy_block9(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h)
722
{
723
    int i;
724
    for(i=0; i<h; i++)
725
    {
726
        AV_WN32(dst   , AV_RN32(src   ));
727
        AV_WN32(dst+4 , AV_RN32(src+4 ));
728
        dst[8]= src[8];
729
        dst+=dstStride;
730
        src+=srcStride;
731
    }
732
}
733

    
734
static inline void copy_block16(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h)
735
{
736
    int i;
737
    for(i=0; i<h; i++)
738
    {
739
        AV_WN32(dst   , AV_RN32(src   ));
740
        AV_WN32(dst+4 , AV_RN32(src+4 ));
741
        AV_WN32(dst+8 , AV_RN32(src+8 ));
742
        AV_WN32(dst+12, AV_RN32(src+12));
743
        dst+=dstStride;
744
        src+=srcStride;
745
    }
746
}
747

    
748
static inline void copy_block17(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h)
749
{
750
    int i;
751
    for(i=0; i<h; i++)
752
    {
753
        AV_WN32(dst   , AV_RN32(src   ));
754
        AV_WN32(dst+4 , AV_RN32(src+4 ));
755
        AV_WN32(dst+8 , AV_RN32(src+8 ));
756
        AV_WN32(dst+12, AV_RN32(src+12));
757
        dst[16]= src[16];
758
        dst+=dstStride;
759
        src+=srcStride;
760
    }
761
}
762

    
763
#endif /* AVCODEC_DSPUTIL_H */