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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 dsputil.h
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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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typedef int DWTELEM;
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typedef short IDWTELEM;
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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_vector_fmul_add_add_c(float *dst, const float *src0, const float *src1,
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                              const float *src2, int src3, int blocksize, int step);
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void ff_vector_fmul_window_c(float *dst, const float *src0, const float *src1,
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                             const float *win, float add_bias, int len);
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void ff_float_to_int16_c(int16_t *dst, const float *src, long len);
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void ff_float_to_int16_interleave_c(int16_t *dst, const float **src, long len, int channels);
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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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/* 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_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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/* 1/2^n downscaling functions from imgconvert.c */
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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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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 (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
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typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);
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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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// for snow slices
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typedef struct slice_buffer_s slice_buffer;
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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, 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 (*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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     * 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[5]; /* identical to pix_absAxA except additional void * */
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    me_cmp_func sse[5];
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    me_cmp_func hadamard8_diff[5];
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    me_cmp_func dct_sad[5];
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    me_cmp_func quant_psnr[5];
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    me_cmp_func bit[5];
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    me_cmp_func rd[5];
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    me_cmp_func vsad[5];
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    me_cmp_func vsse[5];
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    me_cmp_func nsse[5];
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    me_cmp_func w53[5];
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    me_cmp_func w97[5];
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    me_cmp_func dct_max[5];
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    me_cmp_func dct264_sad[5];
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    me_cmp_func me_pre_cmp[5];
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    me_cmp_func me_cmp[5];
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    me_cmp_func me_sub_cmp[5];
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    me_cmp_func mb_cmp[5];
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    me_cmp_func ildct_cmp[5]; //only width 16 used
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    me_cmp_func frame_skip_cmp[5]; //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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    /* This is really one func used in VC-1 decoding */
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    h264_chroma_mc_func put_no_rnd_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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    h264_weight_func weight_h264_pixels_tab[10];
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    h264_biweight_func biweight_h264_pixels_tab[10];
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    /* AVS specific */
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    qpel_mc_func put_cavs_qpel_pixels_tab[2][16];
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    qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];
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    void (*cavs_filter_lv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
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    void (*cavs_filter_lh)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
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    void (*cavs_filter_cv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
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    void (*cavs_filter_ch)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
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    void (*cavs_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
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    me_cmp_func pix_abs[2][4];
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    /* huffyuv specific */
340
    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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    /**
344
     * subtract huffyuv's variant of median prediction
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     * note, this might read from src1[-1], src2[-1]
346
     */
347
    void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
348
    /* 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 (*h264_v_loop_filter_luma)(uint8_t *pix/*align 16*/, int stride, int alpha, int beta, int8_t *tc0);
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    void (*h264_h_loop_filter_luma)(uint8_t *pix/*align 4 */, int stride, int alpha, int beta, int8_t *tc0);
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    /* v/h_loop_filter_luma_intra: align 16 */
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    void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta);
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    void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta);
357
    void (*h264_v_loop_filter_chroma)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta, int8_t *tc0);
358
    void (*h264_h_loop_filter_chroma)(uint8_t *pix/*align 4*/, int stride, int alpha, int beta, int8_t *tc0);
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    void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta);
360
    void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta);
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    // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
362
    void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40], int8_t ref[2][40], int16_t mv[2][40][2],
363
                                      int bidir, int edges, int step, int mask_mv0, int mask_mv1, int field);
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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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373
    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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376
    /* assume len is a multiple of 4, and arrays are 16-byte aligned */
377
    void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
378
    void (*ac3_downmix)(float (*samples)[256], float (*matrix)[2], int out_ch, int in_ch, int len);
379
    /* no alignment needed */
380
    void (*flac_compute_autocorr)(const int32_t *data, int len, int lag, double *autoc);
381
    /* assume len is a multiple of 8, and arrays are 16-byte aligned */
382
    void (*vector_fmul)(float *dst, const float *src, int len);
383
    void (*vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len);
384
    /* assume len is a multiple of 8, and src arrays are 16-byte aligned */
385
    void (*vector_fmul_add_add)(float *dst, const float *src0, const float *src1, const float *src2, int src3, int len, int step);
386
    /* assume len is a multiple of 4, and arrays are 16-byte aligned */
387
    void (*vector_fmul_window)(float *dst, const float *src0, const float *src1, const float *win, float add_bias, int len);
388
    /* assume len is a multiple of 8, and arrays are 16-byte aligned */
389
    void (*int32_to_float_fmul_scalar)(float *dst, const int *src, float mul, int len);
390

    
391
    /* C version: convert floats from the range [384.0,386.0] to ints in [-32768,32767]
392
     * simd versions: convert floats from [-32768.0,32767.0] without rescaling and arrays are 16byte aligned */
393
    void (*float_to_int16)(int16_t *dst, const float *src, long len);
394
    void (*float_to_int16_interleave)(int16_t *dst, const float **src, long len, int channels);
395

    
396
    /* (I)DCT */
397
    void (*fdct)(DCTELEM *block/* align 16*/);
398
    void (*fdct248)(DCTELEM *block/* align 16*/);
399

    
400
    /* IDCT really*/
401
    void (*idct)(DCTELEM *block/* align 16*/);
402

    
403
    /**
404
     * block -> idct -> clip to unsigned 8 bit -> dest.
405
     * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
406
     * @param line_size size in bytes of a horizontal line of dest
407
     */
408
    void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
409

    
410
    /**
411
     * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
412
     * @param line_size size in bytes of a horizontal line of dest
413
     */
414
    void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
415

    
416
    /**
417
     * idct input permutation.
418
     * several optimized IDCTs need a permutated input (relative to the normal order of the reference
419
     * IDCT)
420
     * this permutation must be performed before the idct_put/add, note, normally this can be merged
421
     * with the zigzag/alternate scan<br>
422
     * an example to avoid confusion:
423
     * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
424
     * - (x -> referece dct -> reference idct -> x)
425
     * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
426
     * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
427
     */
428
    uint8_t idct_permutation[64];
429
    int idct_permutation_type;
430
#define FF_NO_IDCT_PERM 1
431
#define FF_LIBMPEG2_IDCT_PERM 2
432
#define FF_SIMPLE_IDCT_PERM 3
433
#define FF_TRANSPOSE_IDCT_PERM 4
434
#define FF_PARTTRANS_IDCT_PERM 5
435
#define FF_SSE2_IDCT_PERM 6
436

    
437
    int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
438
    void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
439
#define BASIS_SHIFT 16
440
#define RECON_SHIFT 6
441

    
442
    void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
443
#define EDGE_WIDTH 16
444

    
445
    /* h264 functions */
446
    /* NOTE!!! if you implement any of h264_idct8_add, h264_idct8_add4 then you must implement all of them
447
       NOTE!!! if you implement any of h264_idct_add, h264_idct_add16, h264_idct_add16intra, h264_idct_add8 then you must implement all of them
448
        The reason for above, is that no 2 out of one list may use a different permutation.
449
    */
450
    void (*h264_idct_add)(uint8_t *dst/*align 4*/, DCTELEM *block/*align 16*/, int stride);
451
    void (*h264_idct8_add)(uint8_t *dst/*align 8*/, DCTELEM *block/*align 16*/, int stride);
452
    void (*h264_idct_dc_add)(uint8_t *dst/*align 4*/, DCTELEM *block/*align 16*/, int stride);
453
    void (*h264_idct8_dc_add)(uint8_t *dst/*align 8*/, DCTELEM *block/*align 16*/, int stride);
454
    void (*h264_dct)(DCTELEM block[4][4]);
455
    void (*h264_idct_add16)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);
456
    void (*h264_idct8_add4)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);
457
    void (*h264_idct_add8)(uint8_t **dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);
458
    void (*h264_idct_add16intra)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);
459

    
460
    /* snow wavelet */
461
    void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
462
    void (*horizontal_compose97i)(IDWTELEM *b, int width);
463
    void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
464

    
465
    void (*prefetch)(void *mem, int stride, int h);
466

    
467
    void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
468

    
469
    /* vc1 functions */
470
    void (*vc1_inv_trans_8x8)(DCTELEM *b);
471
    void (*vc1_inv_trans_8x4)(uint8_t *dest, int line_size, DCTELEM *block);
472
    void (*vc1_inv_trans_4x8)(uint8_t *dest, int line_size, DCTELEM *block);
473
    void (*vc1_inv_trans_4x4)(uint8_t *dest, int line_size, DCTELEM *block);
474
    void (*vc1_v_overlap)(uint8_t* src, int stride);
475
    void (*vc1_h_overlap)(uint8_t* src, int stride);
476
    /* put 8x8 block with bicubic interpolation and quarterpel precision
477
     * last argument is actually round value instead of height
478
     */
479
    op_pixels_func put_vc1_mspel_pixels_tab[16];
480

    
481
    /* intrax8 functions */
482
    void (*x8_spatial_compensation[12])(uint8_t *src , uint8_t *dst, int linesize);
483
    void (*x8_setup_spatial_compensation)(uint8_t *src, uint8_t *dst, int linesize,
484
           int * range, int * sum,  int edges);
485

    
486
    /* ape functions */
487
    /**
488
     * Add contents of the second vector to the first one.
489
     * @param len length of vectors, should be multiple of 16
490
     */
491
    void (*add_int16)(int16_t *v1/*align 16*/, int16_t *v2, int len);
492
    /**
493
     * Add contents of the second vector to the first one.
494
     * @param len length of vectors, should be multiple of 16
495
     */
496
    void (*sub_int16)(int16_t *v1/*align 16*/, int16_t *v2, int len);
497
    /**
498
     * Calculate scalar product of two vectors.
499
     * @param len length of vectors, should be multiple of 16
500
     * @param shift number of bits to discard from product
501
     */
502
    int32_t (*scalarproduct_int16)(int16_t *v1, int16_t *v2/*align 16*/, int len, int shift);
503

    
504
    /* rv30 functions */
505
    qpel_mc_func put_rv30_tpel_pixels_tab[4][16];
506
    qpel_mc_func avg_rv30_tpel_pixels_tab[4][16];
507

    
508
    /* rv40 functions */
509
    qpel_mc_func put_rv40_qpel_pixels_tab[4][16];
510
    qpel_mc_func avg_rv40_qpel_pixels_tab[4][16];
511
    h264_chroma_mc_func put_rv40_chroma_pixels_tab[3];
512
    h264_chroma_mc_func avg_rv40_chroma_pixels_tab[3];
513
} DSPContext;
514

    
515
void dsputil_static_init(void);
516
void dsputil_init(DSPContext* p, AVCodecContext *avctx);
517

    
518
int ff_check_alignment(void);
519

    
520
/**
521
 * permute block according to permuatation.
522
 * @param last last non zero element in scantable order
523
 */
524
void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
525

    
526
void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
527

    
528
#define         BYTE_VEC32(c)   ((c)*0x01010101UL)
529

    
530
static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
531
{
532
    return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
533
}
534

    
535
static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
536
{
537
    return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
538
}
539

    
540
static inline int get_penalty_factor(int lambda, int lambda2, int type){
541
    switch(type&0xFF){
542
    default:
543
    case FF_CMP_SAD:
544
        return lambda>>FF_LAMBDA_SHIFT;
545
    case FF_CMP_DCT:
546
        return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
547
    case FF_CMP_W53:
548
        return (4*lambda)>>(FF_LAMBDA_SHIFT);
549
    case FF_CMP_W97:
550
        return (2*lambda)>>(FF_LAMBDA_SHIFT);
551
    case FF_CMP_SATD:
552
    case FF_CMP_DCT264:
553
        return (2*lambda)>>FF_LAMBDA_SHIFT;
554
    case FF_CMP_RD:
555
    case FF_CMP_PSNR:
556
    case FF_CMP_SSE:
557
    case FF_CMP_NSSE:
558
        return lambda2>>FF_LAMBDA_SHIFT;
559
    case FF_CMP_BIT:
560
        return 1;
561
    }
562
}
563

    
564
/**
565
 * Empty mmx state.
566
 * this must be called between any dsp function and float/double code.
567
 * for example sin(); dsp->idct_put(); emms_c(); cos()
568
 */
569
#define emms_c()
570

    
571
/* should be defined by architectures supporting
572
   one or more MultiMedia extension */
573
int mm_support(void);
574

    
575
void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
576
void dsputil_init_arm(DSPContext* c, AVCodecContext *avctx);
577
void dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx);
578
void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
579
void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
580
void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
581
void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
582
void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
583
void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
584

    
585
#define DECLARE_ALIGNED_16(t, v) DECLARE_ALIGNED(16, t, v)
586

    
587
#if HAVE_MMX
588

    
589
#undef emms_c
590

    
591
extern int mm_flags;
592

    
593
void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
594
void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
595
void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
596

    
597
static inline void emms(void)
598
{
599
    __asm__ volatile ("emms;":::"memory");
600
}
601

    
602

    
603
#define emms_c() \
604
{\
605
    if (mm_flags & FF_MM_MMX)\
606
        emms();\
607
}
608

    
609
void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
610

    
611
#elif ARCH_ARM
612

    
613
extern int mm_flags;
614

    
615
#if HAVE_NEON
616
#   define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)
617
#   define STRIDE_ALIGN 16
618
#endif
619

    
620
#elif ARCH_PPC
621

    
622
extern int mm_flags;
623

    
624
#define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)
625
#define STRIDE_ALIGN 16
626

    
627
#elif HAVE_MMI
628

    
629
#define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)
630
#define STRIDE_ALIGN 16
631

    
632
#else
633

    
634
#define mm_flags 0
635
#define mm_support() 0
636

    
637
#endif
638

    
639
#ifndef DECLARE_ALIGNED_8
640
#   define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
641
#endif
642

    
643
#ifndef STRIDE_ALIGN
644
#   define STRIDE_ALIGN 8
645
#endif
646

    
647
/* PSNR */
648
void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
649
              int orig_linesize[3], int coded_linesize,
650
              AVCodecContext *avctx);
651

    
652
/* FFT computation */
653

    
654
/* NOTE: soon integer code will be added, so you must use the
655
   FFTSample type */
656
typedef float FFTSample;
657

    
658
struct MDCTContext;
659

    
660
typedef struct FFTComplex {
661
    FFTSample re, im;
662
} FFTComplex;
663

    
664
typedef struct FFTContext {
665
    int nbits;
666
    int inverse;
667
    uint16_t *revtab;
668
    FFTComplex *exptab;
669
    FFTComplex *exptab1; /* only used by SSE code */
670
    FFTComplex *tmp_buf;
671
    void (*fft_permute)(struct FFTContext *s, FFTComplex *z);
672
    void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
673
    void (*imdct_calc)(struct MDCTContext *s, FFTSample *output, const FFTSample *input);
674
    void (*imdct_half)(struct MDCTContext *s, FFTSample *output, const FFTSample *input);
675
} FFTContext;
676

    
677
extern FFTSample* ff_cos_tabs[13];
678

    
679
/**
680
 * Sets up a complex FFT.
681
 * @param nbits           log2 of the length of the input array
682
 * @param inverse         if 0 perform the forward transform, if 1 perform the inverse
683
 */
684
int ff_fft_init(FFTContext *s, int nbits, int inverse);
685
void ff_fft_permute_c(FFTContext *s, FFTComplex *z);
686
void ff_fft_permute_sse(FFTContext *s, FFTComplex *z);
687
void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
688
void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
689
void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
690
void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
691
void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
692

    
693
/**
694
 * Do the permutation needed BEFORE calling ff_fft_calc().
695
 */
696
static inline void ff_fft_permute(FFTContext *s, FFTComplex *z)
697
{
698
    s->fft_permute(s, z);
699
}
700
/**
701
 * Do a complex FFT with the parameters defined in ff_fft_init(). The
702
 * input data must be permuted before. No 1.0/sqrt(n) normalization is done.
703
 */
704
static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
705
{
706
    s->fft_calc(s, z);
707
}
708
void ff_fft_end(FFTContext *s);
709

    
710
/* MDCT computation */
711

    
712
typedef struct MDCTContext {
713
    int n;  /* size of MDCT (i.e. number of input data * 2) */
714
    int nbits; /* n = 2^nbits */
715
    /* pre/post rotation tables */
716
    FFTSample *tcos;
717
    FFTSample *tsin;
718
    FFTContext fft;
719
} MDCTContext;
720

    
721
static inline void ff_imdct_calc(MDCTContext *s, FFTSample *output, const FFTSample *input)
722
{
723
    s->fft.imdct_calc(s, output, input);
724
}
725
static inline void ff_imdct_half(MDCTContext *s, FFTSample *output, const FFTSample *input)
726
{
727
    s->fft.imdct_half(s, output, input);
728
}
729

    
730
/**
731
 * Generate a Kaiser-Bessel Derived Window.
732
 * @param   window  pointer to half window
733
 * @param   alpha   determines window shape
734
 * @param   n       size of half window
735
 */
736
void ff_kbd_window_init(float *window, float alpha, int n);
737

    
738
/**
739
 * Generate a sine window.
740
 * @param   window  pointer to half window
741
 * @param   n       size of half window
742
 */
743
void ff_sine_window_init(float *window, int n);
744
extern float ff_sine_128 [ 128];
745
extern float ff_sine_256 [ 256];
746
extern float ff_sine_512 [ 512];
747
extern float ff_sine_1024[1024];
748
extern float ff_sine_2048[2048];
749
extern float ff_sine_4096[4096];
750
extern float *ff_sine_windows[6];
751

    
752
int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
753
void ff_imdct_calc_c(MDCTContext *s, FFTSample *output, const FFTSample *input);
754
void ff_imdct_half_c(MDCTContext *s, FFTSample *output, const FFTSample *input);
755
void ff_imdct_calc_3dn(MDCTContext *s, FFTSample *output, const FFTSample *input);
756
void ff_imdct_half_3dn(MDCTContext *s, FFTSample *output, const FFTSample *input);
757
void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output, const FFTSample *input);
758
void ff_imdct_half_3dn2(MDCTContext *s, FFTSample *output, const FFTSample *input);
759
void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output, const FFTSample *input);
760
void ff_imdct_half_sse(MDCTContext *s, FFTSample *output, const FFTSample *input);
761
void ff_mdct_calc(MDCTContext *s, FFTSample *out, const FFTSample *input);
762
void ff_mdct_end(MDCTContext *s);
763

    
764
/* Real Discrete Fourier Transform */
765

    
766
enum RDFTransformType {
767
    RDFT,
768
    IRDFT,
769
    RIDFT,
770
    IRIDFT,
771
};
772

    
773
typedef struct {
774
    int nbits;
775
    int inverse;
776
    int sign_convention;
777

    
778
    /* pre/post rotation tables */
779
    FFTSample *tcos;
780
    FFTSample *tsin;
781
    FFTContext fft;
782
} RDFTContext;
783

    
784
/**
785
 * Sets up a real FFT.
786
 * @param nbits           log2 of the length of the input array
787
 * @param trans           the type of transform
788
 */
789
int ff_rdft_init(RDFTContext *s, int nbits, enum RDFTransformType trans);
790
void ff_rdft_calc(RDFTContext *s, FFTSample *data);
791
void ff_rdft_end(RDFTContext *s);
792

    
793
#define WRAPPER8_16(name8, name16)\
794
static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
795
    return name8(s, dst           , src           , stride, h)\
796
          +name8(s, dst+8         , src+8         , stride, h);\
797
}
798

    
799
#define WRAPPER8_16_SQ(name8, name16)\
800
static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
801
    int score=0;\
802
    score +=name8(s, dst           , src           , stride, 8);\
803
    score +=name8(s, dst+8         , src+8         , stride, 8);\
804
    if(h==16){\
805
        dst += 8*stride;\
806
        src += 8*stride;\
807
        score +=name8(s, dst           , src           , stride, 8);\
808
        score +=name8(s, dst+8         , src+8         , stride, 8);\
809
    }\
810
    return score;\
811
}
812

    
813

    
814
static inline void copy_block2(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
815
{
816
    int i;
817
    for(i=0; i<h; i++)
818
    {
819
        AV_WN16(dst   , AV_RN16(src   ));
820
        dst+=dstStride;
821
        src+=srcStride;
822
    }
823
}
824

    
825
static inline void copy_block4(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
826
{
827
    int i;
828
    for(i=0; i<h; i++)
829
    {
830
        AV_WN32(dst   , AV_RN32(src   ));
831
        dst+=dstStride;
832
        src+=srcStride;
833
    }
834
}
835

    
836
static inline void copy_block8(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
837
{
838
    int i;
839
    for(i=0; i<h; i++)
840
    {
841
        AV_WN32(dst   , AV_RN32(src   ));
842
        AV_WN32(dst+4 , AV_RN32(src+4 ));
843
        dst+=dstStride;
844
        src+=srcStride;
845
    }
846
}
847

    
848
static inline void copy_block9(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
849
{
850
    int i;
851
    for(i=0; i<h; i++)
852
    {
853
        AV_WN32(dst   , AV_RN32(src   ));
854
        AV_WN32(dst+4 , AV_RN32(src+4 ));
855
        dst[8]= src[8];
856
        dst+=dstStride;
857
        src+=srcStride;
858
    }
859
}
860

    
861
static inline void copy_block16(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
862
{
863
    int i;
864
    for(i=0; i<h; i++)
865
    {
866
        AV_WN32(dst   , AV_RN32(src   ));
867
        AV_WN32(dst+4 , AV_RN32(src+4 ));
868
        AV_WN32(dst+8 , AV_RN32(src+8 ));
869
        AV_WN32(dst+12, AV_RN32(src+12));
870
        dst+=dstStride;
871
        src+=srcStride;
872
    }
873
}
874

    
875
static inline void copy_block17(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
876
{
877
    int i;
878
    for(i=0; i<h; i++)
879
    {
880
        AV_WN32(dst   , AV_RN32(src   ));
881
        AV_WN32(dst+4 , AV_RN32(src+4 ));
882
        AV_WN32(dst+8 , AV_RN32(src+8 ));
883
        AV_WN32(dst+12, AV_RN32(src+12));
884
        dst[16]= src[16];
885
        dst+=dstStride;
886
        src+=srcStride;
887
    }
888
}
889

    
890
#endif /* AVCODEC_DSPUTIL_H */