/* * DSP utils * Copyright (c) 2000, 2001, 2002 Fabrice Bellard. * * This library 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 of the License, or (at your option) any later version. * * This library 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 this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef DSPUTIL_H #define DSPUTIL_H #include "common.h" #include "avcodec.h" //#define DEBUG /* dct code */ typedef short DCTELEM; void fdct_ifast (DCTELEM *data); void ff_jpeg_fdct_islow (DCTELEM *data); void j_rev_dct (DCTELEM *data); void ff_fdct_mmx(DCTELEM *block); /* encoding scans */ extern const UINT8 ff_alternate_horizontal_scan[64]; extern const UINT8 ff_alternate_vertical_scan[64]; extern const UINT8 ff_zigzag_direct[64]; /* pixel operations */ #define MAX_NEG_CROP 384 /* temporary */ extern UINT32 squareTbl[512]; extern UINT8 cropTbl[256 + 2 * MAX_NEG_CROP]; /* 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 *pixels, int line_size); void diff_pixels_c(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride); void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size); void add_pixels_clamped_c(const DCTELEM *block, UINT8 *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 typedef void (*op_pixels_func)(UINT8 *block/*align width (8 or 16)*/, const UINT8 *pixels/*align 1*/, int line_size, int h); typedef void (*qpel_mc_func)(UINT8 *dst/*align width (8 or 16)*/, UINT8 *src/*align 1*/, int stride); #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 */ typedef int (*op_pixels_abs_func)(UINT8 *blk1/*align width (8 or 16)*/, UINT8 *blk2/*align 1*/, int line_size)/* __attribute__ ((const))*/; typedef int (*me_cmp_func)(void /*MpegEncContext*/ *s, UINT8 *blk1/*align width (8 or 16)*/, UINT8 *blk2/*align 1*/, int line_size)/* __attribute__ ((const))*/; typedef struct DSPContext { /* pixel ops : interface with DCT */ void (*get_pixels)(DCTELEM *block/*align 16*/, const UINT8 *pixels/*align 8*/, int line_size); void (*diff_pixels)(DCTELEM *block/*align 16*/, const UINT8 *s1/*align 8*/, const UINT8 *s2/*align 8*/, int stride); void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, UINT8 *pixels/*align 8*/, int line_size); void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, UINT8 *pixels/*align 8*/, int line_size); void (*gmc1)(UINT8 *dst/*align 8*/, UINT8 *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder); void (*gmc )(UINT8 *dst/*align 8*/, UINT8 *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 * pix, int line_size); int (*pix_norm1)(UINT8 * pix, int line_size); me_cmp_func sad[2]; /* identical to pix_absAxA except additional void * */ me_cmp_func sse[2]; me_cmp_func hadamard8_diff[2]; me_cmp_func dct_sad[2]; me_cmp_func quant_psnr[2]; int (*hadamard8_abs )(uint8_t *src, int stride, int mean); me_cmp_func me_pre_cmp[11]; me_cmp_func me_cmp[11]; me_cmp_func me_sub_cmp[11]; me_cmp_func mb_cmp[11]; /* maybe create an array for 16/8 functions */ op_pixels_func put_pixels_tab[2][4]; op_pixels_func avg_pixels_tab[2][4]; op_pixels_func put_no_rnd_pixels_tab[2][4]; op_pixels_func avg_no_rnd_pixels_tab[2][4]; 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]; op_pixels_abs_func pix_abs16x16; op_pixels_abs_func pix_abs16x16_x2; op_pixels_abs_func pix_abs16x16_y2; op_pixels_abs_func pix_abs16x16_xy2; op_pixels_abs_func pix_abs8x8; op_pixels_abs_func pix_abs8x8_x2; op_pixels_abs_func pix_abs8x8_y2; op_pixels_abs_func pix_abs8x8_xy2; /* 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); } DSPContext; void dsputil_init(DSPContext* p, unsigned mask); /** * permute block according to permuatation. * @param last last non zero element in scantable order */ void ff_block_permute(INT16 *block, UINT8 *permutation, const UINT8 *scantable, int last); #define emms_c() #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 */ extern int mm_flags; int mm_support(void); void add_pixels_clamped_mmx(const DCTELEM *block, UINT8 *pixels, int line_size); void put_pixels_clamped_mmx(const DCTELEM *block, UINT8 *pixels, int line_size); static inline void emms(void) { __asm __volatile ("emms;":::"memory"); } #define emms_c() \ {\ if (mm_flags & MM_MMX)\ emms();\ } #define __align8 __attribute__ ((aligned (8))) void dsputil_init_mmx(DSPContext* c, unsigned mask); void dsputil_set_bit_exact_mmx(DSPContext* c, unsigned mask); #elif defined(ARCH_ARMV4L) /* This is to use 4 bytes read to the IDCT pointers for some 'zero' line ptimizations */ #define __align8 __attribute__ ((aligned (4))) void dsputil_init_armv4l(DSPContext* c, unsigned mask); #elif defined(HAVE_MLIB) /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */ #define __align8 __attribute__ ((aligned (8))) void dsputil_init_mlib(DSPContext* c, unsigned mask); #elif defined(ARCH_ALPHA) #define __align8 __attribute__ ((aligned (8))) void dsputil_init_alpha(DSPContext* c, unsigned mask); #elif defined(ARCH_POWERPC) #define MM_ALTIVEC 0x0001 /* standard AltiVec */ extern int mm_flags; #define __align8 __attribute__ ((aligned (16))) void dsputil_init_ppc(DSPContext* c, unsigned mask); #elif defined(HAVE_MMI) #define __align8 __attribute__ ((aligned (16))) void dsputil_init_mmi(DSPContext* c, unsigned mask); #else #define __align8 #endif #ifdef __GNUC__ struct unaligned_64 { uint64_t l; } __attribute__((packed)); struct unaligned_32 { uint32_t l; } __attribute__((packed)); #define LD32(a) (((const struct unaligned_32 *) (a))->l) #define LD64(a) (((const struct unaligned_64 *) (a))->l) #define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b) #else /* __GNUC__ */ #define LD32(a) (*((uint32_t*)(a))) #define LD64(a) (*((uint64_t*)(a))) #define ST32(a, b) *((uint32_t*)(a)) = (b) #endif /* !__GNUC__ */ /* PSNR */ void get_psnr(UINT8 *orig_image[3], UINT8 *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; 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); } FFTContext; int fft_init(FFTContext *s, int nbits, int inverse); void fft_permute(FFTContext *s, FFTComplex *z); void fft_calc_c(FFTContext *s, FFTComplex *z); void fft_calc_sse(FFTContext *s, FFTComplex *z); static inline void fft_calc(FFTContext *s, FFTComplex *z) { s->fft_calc(s, z); } void 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_mdct_calc(MDCTContext *s, FFTSample *out, const FFTSample *input, FFTSample *tmp); void ff_mdct_end(MDCTContext *s); #define WARPER88_1616(name8, name16)\ static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride){\ return name8(s, dst , src , stride)\ +name8(s, dst+8 , src+8 , stride)\ +name8(s, dst +8*stride, src +8*stride, stride)\ +name8(s, dst+8+8*stride, src+8+8*stride, stride);\ } #ifndef HAVE_LRINTF /* XXX: add ISOC specific test to avoid specific BSD testing. */ /* better than nothing implementation. */ /* btw, rintf() is existing on fbsd too -- alex */ static inline long int lrintf(float x) { return (int)(rint(x)); } #endif #endif