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FFmpeg/libavcodec/ppc/dsputil_altivec.h

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  1. /*

  2.  * Copyright (c) 2002 Brian Foley

  3.  * Copyright (c) 2002 Dieter Shirley

  4.  *

  5.  * This library is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU Lesser General Public

  7.  * License as published by the Free Software Foundation; either

  8.  * version 2 of the License, or (at your option) any later version.

  9.  *

  10.  * This library is distributed in the hope that it will be useful,

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  13.  * Lesser General Public License for more details.

  14.  *

  15.  * You should have received a copy of the GNU Lesser General Public

  16.  * License along with this library; if not, write to the Free Software

  17.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  18.  */

  19. 

  20. extern int pix_abs16x16_x2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size);

  21. extern int pix_abs16x16_y2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size);

  22. extern int pix_abs16x16_xy2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size);

  23. extern int pix_abs16x16_altivec(uint8_t *pix1, uint8_t *pix2, int line_size);

  24. extern int pix_abs8x8_altivec(uint8_t *pix1, uint8_t *pix2, int line_size);

  25. extern int sad16x16_altivec(void *s, uint8_t *a, uint8_t *b, int stride);

  26. extern int sad8x8_altivec(void *s, uint8_t *a, uint8_t *b, int stride);

  27. extern int pix_norm1_altivec(uint8_t *pix, int line_size);

  28. extern int sse8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size);

  29. extern int sse16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size);

  30. extern int pix_sum_altivec(UINT8 * pix, int line_size);

  31. extern void diff_pixels_altivec(DCTELEM* block, const UINT8* s1, const UINT8* s2, int stride);

  32. extern void get_pixels_altivec(DCTELEM* block, const UINT8 * pixels, int line_size);

  33. 

  34. extern void gmc1_altivec(UINT8 *dst, UINT8 *src, int stride, int h, int x16, int y16, int rounder);

  35. 

  36. extern void add_bytes_altivec(uint8_t *dst, uint8_t *src, int w);

  37. 

  38. extern int has_altivec(void);

  39. 

  40. 

  41. 

  42. // used to build registers permutation vectors (vcprm)

  43. // the 's' are for words in the _s_econd vector

  44. #define WORD_0 0x00,0x01,0x02,0x03

  45. #define WORD_1 0x04,0x05,0x06,0x07

  46. #define WORD_2 0x08,0x09,0x0a,0x0b

  47. #define WORD_3 0x0c,0x0d,0x0e,0x0f

  48. #define WORD_s0 0x10,0x11,0x12,0x13

  49. #define WORD_s1 0x14,0x15,0x16,0x17

  50. #define WORD_s2 0x18,0x19,0x1a,0x1b

  51. #define WORD_s3 0x1c,0x1d,0x1e,0x1f

  52. 

  53. #define vcprm(a,b,c,d) (const vector unsigned char)(WORD_ ## a, WORD_ ## b, WORD_ ## c, WORD_ ## d)

  54. 

  55. // vcprmle is used to keep the same index as in the SSE version.

  56. // it's the same as vcprm, with the index inversed

  57. // ('le' is Little Endian)

  58. #define vcprmle(a,b,c,d) vcprm(d,c,b,a)

  59. 

  60. // used to build inverse/identity vectors (vcii)

  61. // n is _n_egative, p is _p_ositive

  62. #define FLOAT_n -1.

  63. #define FLOAT_p 1.

  64. 

  65. #define vcii(a,b,c,d) (const vector float)(FLOAT_ ## a, FLOAT_ ## b, FLOAT_ ## c, FLOAT_ ## d)