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+/*
+ * DSP utils
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file dsputil.h
+ * DSP utils.
+ * note, many functions in here may use MMX which trashes the FPU state, it is
+ * absolutely necessary to call emms_c() between dsp & float/double code
+ */
+
+#ifndef DSPUTIL_H
+#define DSPUTIL_H
+
+#include "common.h"
+#include "avcodec.h"
+
+
+//#define DEBUG
+/* dct code */
+typedef short DCTELEM;
+typedef int DWTELEM;
+
+void fdct_ifast (DCTELEM *data);
+void fdct_ifast248 (DCTELEM *data);
+void ff_jpeg_fdct_islow (DCTELEM *data);
+void ff_fdct248_islow (DCTELEM *data);
+
+void j_rev_dct (DCTELEM *data);
+void j_rev_dct4 (DCTELEM *data);
+void j_rev_dct2 (DCTELEM *data);
+void j_rev_dct1 (DCTELEM *data);
+
+void ff_fdct_mmx(DCTELEM *block);
+void ff_fdct_mmx2(DCTELEM *block);
+void ff_fdct_sse2(DCTELEM *block);
+
+void ff_h264_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride);
+void ff_h264_idct_add_c(uint8_t *dst, DCTELEM *block, int stride);
+void ff_h264_idct8_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
+void ff_h264_idct_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
+void ff_h264_lowres_idct_add_c(uint8_t *dst, int stride, DCTELEM *block);
+void ff_h264_lowres_idct_put_c(uint8_t *dst, int stride, DCTELEM *block);
+
+void ff_vector_fmul_add_add_c(float *dst, const float *src0, const float *src1,
+ const float *src2, int src3, int blocksize, int step);
+void ff_float_to_int16_c(int16_t *dst, const float *src, int len);
+
+/* encoding scans */
+extern const uint8_t ff_alternate_horizontal_scan[64];
+extern const uint8_t ff_alternate_vertical_scan[64];
+extern const uint8_t ff_zigzag_direct[64];
+extern const uint8_t ff_zigzag248_direct[64];
+
+/* pixel operations */
+#define MAX_NEG_CROP 1024
+
+/* temporary */
+extern uint32_t ff_squareTbl[512];
+extern uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP];
+
+/* VP3 DSP functions */
+void ff_vp3_idct_c(DCTELEM *block/* align 16*/);
+void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
+void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
+
+/* 1/2^n downscaling functions from imgconvert.c */
+void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
+void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
+void ff_shrink44(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
+void ff_shrink88(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
+
+void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
+ int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
+
+/* minimum alignment rules ;)
+if u notice errors in the align stuff, need more alignment for some asm code for some cpu
+or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ...
+
+!warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible)
+i (michael) didnt check them, these are just the alignents which i think could be reached easily ...
+
+!future video codecs might need functions with less strict alignment
+*/
+
+/*
+void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
+void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
+void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
+void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
+void clear_blocks_c(DCTELEM *blocks);
+*/
+
+/* add and put pixel (decoding) */
+// blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
+//h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
+typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
+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);
+typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
+typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
+typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
+typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);
+
+#define DEF_OLD_QPEL(name)\
+void ff_put_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
+void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
+void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
+
+DEF_OLD_QPEL(qpel16_mc11_old_c)
+DEF_OLD_QPEL(qpel16_mc31_old_c)
+DEF_OLD_QPEL(qpel16_mc12_old_c)
+DEF_OLD_QPEL(qpel16_mc32_old_c)
+DEF_OLD_QPEL(qpel16_mc13_old_c)
+DEF_OLD_QPEL(qpel16_mc33_old_c)
+DEF_OLD_QPEL(qpel8_mc11_old_c)
+DEF_OLD_QPEL(qpel8_mc31_old_c)
+DEF_OLD_QPEL(qpel8_mc12_old_c)
+DEF_OLD_QPEL(qpel8_mc32_old_c)
+DEF_OLD_QPEL(qpel8_mc13_old_c)
+DEF_OLD_QPEL(qpel8_mc33_old_c)
+
+#define CALL_2X_PIXELS(a, b, n)\
+static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
+ b(block , pixels , line_size, h);\
+ b(block+n, pixels+n, line_size, h);\
+}
+
+/* motion estimation */
+// h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
+// allthough currently h<4 is not used as functions with width <8 are not used and neither implemented
+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))*/;
+
+
+// for snow slices
+typedef struct slice_buffer_s slice_buffer;
+
+/**
+ * DSPContext.
+ */
+typedef struct DSPContext {
+ /* pixel ops : interface with DCT */
+ void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
+ void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
+ void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
+ void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
+ void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
+ void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);
+ void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);
+ /**
+ * translational global motion compensation.
+ */
+ void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
+ /**
+ * global motion compensation.
+ */
+ void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
+ int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
+ void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
+ int (*pix_sum)(uint8_t * pix, int line_size);
+ int (*pix_norm1)(uint8_t * pix, int line_size);
+// 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
+
+ me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */
+ me_cmp_func sse[5];
+ me_cmp_func hadamard8_diff[5];
+ me_cmp_func dct_sad[5];
+ me_cmp_func quant_psnr[5];
+ me_cmp_func bit[5];
+ me_cmp_func rd[5];
+ me_cmp_func vsad[5];
+ me_cmp_func vsse[5];
+ me_cmp_func nsse[5];
+ me_cmp_func w53[5];
+ me_cmp_func w97[5];
+ me_cmp_func dct_max[5];
+ me_cmp_func dct264_sad[5];
+
+ me_cmp_func me_pre_cmp[5];
+ me_cmp_func me_cmp[5];
+ me_cmp_func me_sub_cmp[5];
+ me_cmp_func mb_cmp[5];
+ me_cmp_func ildct_cmp[5]; //only width 16 used
+ me_cmp_func frame_skip_cmp[5]; //only width 8 used
+
+ int (*ssd_int8_vs_int16)(int8_t *pix1, int16_t *pix2, int size);
+
+ /**
+ * Halfpel motion compensation with rounding (a+b+1)>>1.
+ * this is an array[4][4] of motion compensation functions for 4
+ * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
+ * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
+ * @param block destination where the result is stored
+ * @param pixels source
+ * @param line_size number of bytes in a horizontal line of block
+ * @param h height
+ */
+ op_pixels_func put_pixels_tab[4][4];
+
+ /**
+ * Halfpel motion compensation with rounding (a+b+1)>>1.
+ * This is an array[4][4] of motion compensation functions for 4
+ * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
+ * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
+ * @param block destination into which the result is averaged (a+b+1)>>1
+ * @param pixels source
+ * @param line_size number of bytes in a horizontal line of block
+ * @param h height
+ */
+ op_pixels_func avg_pixels_tab[4][4];
+
+ /**
+ * Halfpel motion compensation with no rounding (a+b)>>1.
+ * this is an array[2][4] of motion compensation functions for 2
+ * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
+ * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
+ * @param block destination where the result is stored
+ * @param pixels source
+ * @param line_size number of bytes in a horizontal line of block
+ * @param h height
+ */
+ op_pixels_func put_no_rnd_pixels_tab[4][4];
+
+ /**
+ * Halfpel motion compensation with no rounding (a+b)>>1.
+ * this is an array[2][4] of motion compensation functions for 2
+ * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
+ * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
+ * @param block destination into which the result is averaged (a+b)>>1
+ * @param pixels source
+ * @param line_size number of bytes in a horizontal line of block
+ * @param h height
+ */
+ op_pixels_func avg_no_rnd_pixels_tab[4][4];
+
+ 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);
+
+ /**
+ * Thirdpel motion compensation with rounding (a+b+1)>>1.
+ * this is an array[12] of motion compensation functions for the 9 thirdpe
+ * positions<br>
+ * *pixels_tab[ xthirdpel + 4*ythirdpel ]
+ * @param block destination where the result is stored
+ * @param pixels source
+ * @param line_size number of bytes in a horizontal line of block
+ * @param h height
+ */
+ tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
+ tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
+
+ qpel_mc_func put_qpel_pixels_tab[2][16];
+ qpel_mc_func avg_qpel_pixels_tab[2][16];
+ qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
+ qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
+ qpel_mc_func put_mspel_pixels_tab[8];
+
+ /**
+ * h264 Chroma MC
+ */
+ h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
+ /* This is really one func used in VC-1 decoding */
+ h264_chroma_mc_func put_no_rnd_h264_chroma_pixels_tab[3];
+ h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
+
+ qpel_mc_func put_h264_qpel_pixels_tab[4][16];
+ qpel_mc_func avg_h264_qpel_pixels_tab[4][16];
+
+ qpel_mc_func put_2tap_qpel_pixels_tab[4][16];
+ qpel_mc_func avg_2tap_qpel_pixels_tab[4][16];
+
+ h264_weight_func weight_h264_pixels_tab[10];
+ h264_biweight_func biweight_h264_pixels_tab[10];
+
+ /* AVS specific */
+ qpel_mc_func put_cavs_qpel_pixels_tab[2][16];
+ qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];
+ void (*cavs_filter_lv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
+ void (*cavs_filter_lh)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
+ void (*cavs_filter_cv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
+ void (*cavs_filter_ch)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
+ void (*cavs_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
+
+ me_cmp_func pix_abs[2][4];
+
+ /* huffyuv specific */
+ void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
+ void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
+ /**
+ * subtract huffyuv's variant of median prediction
+ * note, this might read from src1[-1], src2[-1]
+ */
+ void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
+ void (*bswap_buf)(uint32_t *dst, uint32_t *src, int w);
+
+ void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
+ void (*h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
+ void (*h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
+ void (*h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
+ void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
+ void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
+ // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
+ 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],
+ int bidir, int edges, int step, int mask_mv0, int mask_mv1);
+
+ void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
+ void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
+
+ void (*h261_loop_filter)(uint8_t *src, int stride);
+
+ /* assume len is a multiple of 4, and arrays are 16-byte aligned */
+ void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
+ /* assume len is a multiple of 8, and arrays are 16-byte aligned */
+ void (*vector_fmul)(float *dst, const float *src, int len);
+ void (*vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len);
+ /* assume len is a multiple of 8, and src arrays are 16-byte aligned */
+ void (*vector_fmul_add_add)(float *dst, const float *src0, const float *src1, const float *src2, int src3, int len, int step);
+
+ /* C version: convert floats from the range [384.0,386.0] to ints in [-32768,32767]
+ * simd versions: convert floats from [-32768.0,32767.0] without rescaling and arrays are 16byte aligned */
+ void (*float_to_int16)(int16_t *dst, const float *src, int len);
+
+ /* (I)DCT */
+ void (*fdct)(DCTELEM *block/* align 16*/);
+ void (*fdct248)(DCTELEM *block/* align 16*/);
+
+ /* IDCT really*/
+ void (*idct)(DCTELEM *block/* align 16*/);
+
+ /**
+ * block -> idct -> clip to unsigned 8 bit -> dest.
+ * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
+ * @param line_size size in bytes of a horizotal line of dest
+ */
+ void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
+
+ /**
+ * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
+ * @param line_size size in bytes of a horizotal line of dest
+ */
+ void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
+
+ /**
+ * idct input permutation.
+ * several optimized IDCTs need a permutated input (relative to the normal order of the reference
+ * IDCT)
+ * this permutation must be performed before the idct_put/add, note, normally this can be merged
+ * with the zigzag/alternate scan<br>
+ * an example to avoid confusion:
+ * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
+ * - (x -> referece dct -> reference idct -> x)
+ * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
+ * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
+ */
+ uint8_t idct_permutation[64];
+ int idct_permutation_type;
+#define FF_NO_IDCT_PERM 1
+#define FF_LIBMPEG2_IDCT_PERM 2
+#define FF_SIMPLE_IDCT_PERM 3
+#define FF_TRANSPOSE_IDCT_PERM 4
+#define FF_PARTTRANS_IDCT_PERM 5
+
+ int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
+ void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
+#define BASIS_SHIFT 16
+#define RECON_SHIFT 6
+
+ /* h264 functions */
+ void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);
+ void (*h264_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
+ void (*h264_idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
+ void (*h264_idct8_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
+ void (*h264_dct)(DCTELEM block[4][4]);
+
+ /* snow wavelet */
+ void (*vertical_compose97i)(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
+ void (*horizontal_compose97i)(DWTELEM *b, int width);
+ 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);
+
+ void (*prefetch)(void *mem, int stride, int h);
+
+ void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
+
+ /* vc1 functions */
+ void (*vc1_inv_trans_8x8)(DCTELEM *b);
+ void (*vc1_inv_trans_8x4)(DCTELEM *b, int n);
+ void (*vc1_inv_trans_4x8)(DCTELEM *b, int n);
+ void (*vc1_inv_trans_4x4)(DCTELEM *b, int n);
+ void (*vc1_v_overlap)(uint8_t* src, int stride);
+ void (*vc1_h_overlap)(uint8_t* src, int stride);
+ /* put 8x8 block with bicubic interpolation and quarterpel precision
+ * last argument is actually round value instead of height
+ */
+ op_pixels_func put_vc1_mspel_pixels_tab[16];
+} DSPContext;
+
+void dsputil_static_init(void);
+void dsputil_init(DSPContext* p, AVCodecContext *avctx);
+
+int ff_check_alignment(void);
+
+/**
+ * permute block according to permuatation.
+ * @param last last non zero element in scantable order
+ */
+void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
+
+void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
+
+#define BYTE_VEC32(c) ((c)*0x01010101UL)
+
+static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
+{
+ return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
+}
+
+static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
+{
+ return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
+}
+
+static inline int get_penalty_factor(int lambda, int lambda2, int type){
+ switch(type&0xFF){
+ default:
+ case FF_CMP_SAD:
+ return lambda>>FF_LAMBDA_SHIFT;
+ case FF_CMP_DCT:
+ return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
+ case FF_CMP_W53:
+ return (4*lambda)>>(FF_LAMBDA_SHIFT);
+ case FF_CMP_W97:
+ return (2*lambda)>>(FF_LAMBDA_SHIFT);
+ case FF_CMP_SATD:
+ case FF_CMP_DCT264:
+ return (2*lambda)>>FF_LAMBDA_SHIFT;
+ case FF_CMP_RD:
+ case FF_CMP_PSNR:
+ case FF_CMP_SSE:
+ case FF_CMP_NSSE:
+ return lambda2>>FF_LAMBDA_SHIFT;
+ case FF_CMP_BIT:
+ return 1;
+ }
+}
+
+/**
+ * Empty mmx state.
+ * this must be called between any dsp function and float/double code.
+ * for example sin(); dsp->idct_put(); emms_c(); cos()
+ */
+#define emms_c()
+
+/* should be defined by architectures supporting
+ one or more MultiMedia extension */
+int mm_support(void);
+
+#ifdef __GNUC__
+ #define DECLARE_ALIGNED_16(t,v) t v __attribute__ ((aligned (16)))
+#else
+ #define DECLARE_ALIGNED_16(t,v) __declspec(align(16)) t v
+#endif
+
+#if defined(HAVE_MMX)
+
+#undef emms_c
+
+#define MM_MMX 0x0001 /* standard MMX */
+#define MM_3DNOW 0x0004 /* AMD 3DNOW */
+#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
+#define MM_SSE 0x0008 /* SSE functions */
+#define MM_SSE2 0x0010 /* PIV SSE2 functions */
+#define MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
+#define MM_SSE3 0x0040 /* Prescott SSE3 functions */
+#define MM_SSSE3 0x0080 /* Conroe SSSE3 functions */
+
+extern int mm_flags;
+
+void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
+void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
+void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
+
+static inline void emms(void)
+{
+ __asm __volatile ("emms;":::"memory");
+}
+
+
+#define emms_c() \
+{\
+ if (mm_flags & MM_MMX)\
+ emms();\
+}
+
+#ifdef __GNUC__
+ #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
+#else
+ #define DECLARE_ALIGNED_8(t,v) __declspec(align(8)) t v
+#endif
+
+#define STRIDE_ALIGN 8
+
+void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
+void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
+
+#elif defined(ARCH_ARMV4L)
+
+/* This is to use 4 bytes read to the IDCT pointers for some 'zero'
+ line optimizations */
+#define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (4)))
+#define STRIDE_ALIGN 4
+
+#define MM_IWMMXT 0x0100 /* XScale IWMMXT */
+
+extern int mm_flags;
+
+void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
+
+#elif defined(HAVE_MLIB)
+
+/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
+#define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
+#define STRIDE_ALIGN 8
+
+void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
+
+#elif defined(ARCH_SPARC)
+
+/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
+#define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
+#define STRIDE_ALIGN 8
+void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
+
+#elif defined(ARCH_ALPHA)
+
+#define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
+#define STRIDE_ALIGN 8
+
+void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
+
+#elif defined(ARCH_POWERPC)
+
+#define MM_ALTIVEC 0x0001 /* standard AltiVec */
+
+extern int mm_flags;
+
+#if defined(HAVE_ALTIVEC) && !defined(CONFIG_DARWIN)
+#define pixel altivec_pixel
+#include <altivec.h>
+#undef pixel
+#endif
+
+#define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (16)))
+#define STRIDE_ALIGN 16
+
+void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
+
+#elif defined(HAVE_MMI)
+
+#define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (16)))
+#define STRIDE_ALIGN 16
+
+void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
+
+#elif defined(ARCH_SH4)
+
+#define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
+#define STRIDE_ALIGN 8
+
+void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
+
+#elif defined(ARCH_BFIN)
+
+#define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
+#define STRIDE_ALIGN 8
+
+void dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx);
+
+#else
+
+#define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
+#define STRIDE_ALIGN 8
+
+#endif
+
+/* PSNR */
+void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
+ int orig_linesize[3], int coded_linesize,
+ AVCodecContext *avctx);
+
+/* FFT computation */
+
+/* NOTE: soon integer code will be added, so you must use the
+ FFTSample type */
+typedef float FFTSample;
+
+struct MDCTContext;
+
+typedef struct FFTComplex {
+ FFTSample re, im;
+} FFTComplex;
+
+typedef struct FFTContext {
+ int nbits;
+ int inverse;
+ uint16_t *revtab;
+ FFTComplex *exptab;
+ FFTComplex *exptab1; /* only used by SSE code */
+ void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
+ void (*imdct_calc)(struct MDCTContext *s, FFTSample *output,
+ const FFTSample *input, FFTSample *tmp);
+} FFTContext;
+
+int ff_fft_init(FFTContext *s, int nbits, int inverse);
+void ff_fft_permute(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
+
+static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
+{
+ s->fft_calc(s, z);
+}
+void ff_fft_end(FFTContext *s);
+
+/* MDCT computation */
+
+typedef struct MDCTContext {
+ int n; /* size of MDCT (i.e. number of input data * 2) */
+ int nbits; /* n = 2^nbits */
+ /* pre/post rotation tables */
+ FFTSample *tcos;
+ FFTSample *tsin;
+ FFTContext fft;
+} MDCTContext;
+
+int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
+void ff_imdct_calc(MDCTContext *s, FFTSample *output,
+ const FFTSample *input, FFTSample *tmp);
+void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output,
+ const FFTSample *input, FFTSample *tmp);
+void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output,
+ const FFTSample *input, FFTSample *tmp);
+void ff_mdct_calc(MDCTContext *s, FFTSample *out,
+ const FFTSample *input, FFTSample *tmp);
+void ff_mdct_end(MDCTContext *s);
+
+#define WARPER8_16(name8, name16)\
+static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
+ return name8(s, dst , src , stride, h)\
+ +name8(s, dst+8 , src+8 , stride, h);\
+}
+
+#define WARPER8_16_SQ(name8, name16)\
+static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
+ int score=0;\
+ score +=name8(s, dst , src , stride, 8);\
+ score +=name8(s, dst+8 , src+8 , stride, 8);\
+ if(h==16){\
+ dst += 8*stride;\
+ src += 8*stride;\
+ score +=name8(s, dst , src , stride, 8);\
+ score +=name8(s, dst+8 , src+8 , stride, 8);\
+ }\
+ return score;\
+}
+
+
+static inline void copy_block2(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
+{
+ int i;
+ for(i=0; i<h; i++)
+ {
+ ST16(dst , LD16(src ));
+ dst+=dstStride;
+ src+=srcStride;
+ }
+}
+
+static inline void copy_block4(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
+{
+ int i;
+ for(i=0; i<h; i++)
+ {
+ ST32(dst , LD32(src ));
+ dst+=dstStride;
+ src+=srcStride;
+ }
+}
+
+static inline void copy_block8(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
+{
+ int i;
+ for(i=0; i<h; i++)
+ {
+ ST32(dst , LD32(src ));
+ ST32(dst+4 , LD32(src+4 ));
+ dst+=dstStride;
+ src+=srcStride;
+ }
+}
+
+static inline void copy_block9(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
+{
+ int i;
+ for(i=0; i<h; i++)
+ {
+ ST32(dst , LD32(src ));
+ ST32(dst+4 , LD32(src+4 ));
+ dst[8]= src[8];
+ dst+=dstStride;
+ src+=srcStride;
+ }
+}
+
+static inline void copy_block16(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
+{
+ int i;
+ for(i=0; i<h; i++)
+ {
+ ST32(dst , LD32(src ));
+ ST32(dst+4 , LD32(src+4 ));
+ ST32(dst+8 , LD32(src+8 ));
+ ST32(dst+12, LD32(src+12));
+ dst+=dstStride;
+ src+=srcStride;
+ }
+}
+
+static inline void copy_block17(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
+{
+ int i;
+ for(i=0; i<h; i++)
+ {
+ ST32(dst , LD32(src ));
+ ST32(dst+4 , LD32(src+4 ));
+ ST32(dst+8 , LD32(src+8 ));
+ ST32(dst+12, LD32(src+12));
+ dst[16]= src[16];
+ dst+=dstStride;
+ src+=srcStride;
+ }
+}
+
+#endif