/media/libjpeg/simd/jfss2int-64.asm

http://github.com/zpao/v8monkey · Assembly · 622 lines · 408 code · 102 blank · 112 comment · 1 complexity · 5a2264f06e07bdc6f4c6d5897a384e2d MD5 · raw file 

    

  1. ;
    2. 

  2. ; jfss2int-64.asm - accurate integer FDCT (64-bit SSE2)
    3. 

  3. ;
    4. 

  4. ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
    5. 

  5. ; Copyright 2009 D. R. Commander
    6. 

  6. ;
    7. 

  7. ; Based on
    8. 

  8. ; x86 SIMD extension for IJG JPEG library
    9. 

  9. ; Copyright (C) 1999-2006, MIYASAKA Masaru.
    10. 

  10. ; For conditions of distribution and use, see copyright notice in jsimdext.inc
    11. 

  11. ;
    12. 

  12. ; This file should be assembled with NASM (Netwide Assembler),
    13. 

  13. ; can *not* be assembled with Microsoft's MASM or any compatible
    14. 

  14. ; assembler (including Borland's Turbo Assembler).
    15. 

  15. ; NASM is available from http://nasm.sourceforge.net/ or
    16. 

  16. ; http://sourceforge.net/project/showfiles.php?group_id=6208
    17. 

  17. ;
    18. 

  18. ; This file contains a slow-but-accurate integer implementation of the
    19. 

  19. ; forward DCT (Discrete Cosine Transform). The following code is based
    20. 

  20. ; directly on the IJG's original jfdctint.c; see the jfdctint.c for
    21. 

  21. ; more details.
    22. 

  22. ;
    23. 

  23. ; [TAB8]
    24. 

  24. 

  25. %include "jsimdext.inc"
    26. 

  26. %include "jdct.inc"
    27. 

  27. 

  28. ; --------------------------------------------------------------------------
    29. 

  29. 

  30. %define CONST_BITS	13
    31. 

  31. %define PASS1_BITS	2
    32. 

  32. 

  33. %define DESCALE_P1	(CONST_BITS-PASS1_BITS)
    34. 

  34. %define DESCALE_P2	(CONST_BITS+PASS1_BITS)
    35. 

  35. 

  36. %if CONST_BITS == 13
    37. 

  37. F_0_298	equ	 2446		; FIX(0.298631336)
    38. 

  38. F_0_390	equ	 3196		; FIX(0.390180644)
    39. 

  39. F_0_541	equ	 4433		; FIX(0.541196100)
    40. 

  40. F_0_765	equ	 6270		; FIX(0.765366865)
    41. 

  41. F_0_899	equ	 7373		; FIX(0.899976223)
    42. 

  42. F_1_175	equ	 9633		; FIX(1.175875602)
    43. 

  43. F_1_501	equ	12299		; FIX(1.501321110)
    44. 

  44. F_1_847	equ	15137		; FIX(1.847759065)
    45. 

  45. F_1_961	equ	16069		; FIX(1.961570560)
    46. 

  46. F_2_053	equ	16819		; FIX(2.053119869)
    47. 

  47. F_2_562	equ	20995		; FIX(2.562915447)
    48. 

  48. F_3_072	equ	25172		; FIX(3.072711026)
    49. 

  49. %else
    50. 

  50. ; NASM cannot do compile-time arithmetic on floating-point constants.
    51. 

  51. %define DESCALE(x,n)  (((x)+(1<<((n)-1)))>>(n))
    52. 

  52. F_0_298	equ	DESCALE( 320652955,30-CONST_BITS)	; FIX(0.298631336)
    53. 

  53. F_0_390	equ	DESCALE( 418953276,30-CONST_BITS)	; FIX(0.390180644)
    54. 

  54. F_0_541	equ	DESCALE( 581104887,30-CONST_BITS)	; FIX(0.541196100)
    55. 

  55. F_0_765	equ	DESCALE( 821806413,30-CONST_BITS)	; FIX(0.765366865)
    56. 

  56. F_0_899	equ	DESCALE( 966342111,30-CONST_BITS)	; FIX(0.899976223)
    57. 

  57. F_1_175	equ	DESCALE(1262586813,30-CONST_BITS)	; FIX(1.175875602)
    58. 

  58. F_1_501	equ	DESCALE(1612031267,30-CONST_BITS)	; FIX(1.501321110)
    59. 

  59. F_1_847	equ	DESCALE(1984016188,30-CONST_BITS)	; FIX(1.847759065)
    60. 

  60. F_1_961	equ	DESCALE(2106220350,30-CONST_BITS)	; FIX(1.961570560)
    61. 

  61. F_2_053	equ	DESCALE(2204520673,30-CONST_BITS)	; FIX(2.053119869)
    62. 

  62. F_2_562	equ	DESCALE(2751909506,30-CONST_BITS)	; FIX(2.562915447)
    63. 

  63. F_3_072	equ	DESCALE(3299298341,30-CONST_BITS)	; FIX(3.072711026)
    64. 

  64. %endif
    65. 

  65. 

  66. ; --------------------------------------------------------------------------
    67. 

  67. 	SECTION	SEG_CONST
    68. 

  68. 

  69. 	alignz	16
    70. 

  70. 	global	EXTN(jconst_fdct_islow_sse2)
    71. 

  71. 

  72. EXTN(jconst_fdct_islow_sse2):
    73. 

  73. 

  74. PW_F130_F054	times 4 dw  (F_0_541+F_0_765), F_0_541
    75. 

  75. PW_F054_MF130	times 4 dw  F_0_541, (F_0_541-F_1_847)
    76. 

  76. PW_MF078_F117	times 4 dw  (F_1_175-F_1_961), F_1_175
    77. 

  77. PW_F117_F078	times 4 dw  F_1_175, (F_1_175-F_0_390)
    78. 

  78. PW_MF060_MF089	times 4 dw  (F_0_298-F_0_899),-F_0_899
    79. 

  79. PW_MF089_F060	times 4 dw -F_0_899, (F_1_501-F_0_899)
    80. 

  80. PW_MF050_MF256	times 4 dw  (F_2_053-F_2_562),-F_2_562
    81. 

  81. PW_MF256_F050	times 4 dw -F_2_562, (F_3_072-F_2_562)
    82. 

  82. PD_DESCALE_P1	times 4 dd  1 << (DESCALE_P1-1)
    83. 

  83. PD_DESCALE_P2	times 4 dd  1 << (DESCALE_P2-1)
    84. 

  84. PW_DESCALE_P2X	times 8 dw  1 << (PASS1_BITS-1)
    85. 

  85. 

  86. 	alignz	16
    87. 

  87. 

  88. ; --------------------------------------------------------------------------
    89. 

  89. 	SECTION	SEG_TEXT
    90. 

  90. 	BITS	64
    91. 

  91. ;
    92. 

  92. ; Perform the forward DCT on one block of samples.
    93. 

  93. ;
    94. 

  94. ; GLOBAL(void)
    95. 

  95. ; jsimd_fdct_islow_sse2 (DCTELEM * data)
    96. 

  96. ;
    97. 

  97. 

  98. ; r10 = DCTELEM * data
    99. 

  99. 

  100. %define wk(i)		rbp-(WK_NUM-(i))*SIZEOF_XMMWORD	; xmmword wk[WK_NUM]
    101. 

  101. %define WK_NUM		6
    102. 

  102. 

  103. 	align	16
    104. 

  104. 	global	EXTN(jsimd_fdct_islow_sse2)
    105. 

  105. 

  106. EXTN(jsimd_fdct_islow_sse2):
    107. 

  107. 	push	rbp
    108. 

  108. 	mov	rax,rsp				; rax = original rbp
    109. 

  109. 	sub	rsp, byte 4
    110. 

  110. 	and	rsp, byte (-SIZEOF_XMMWORD)	; align to 128 bits
    111. 

  111. 	mov	[rsp],rax
    112. 

  112. 	mov	rbp,rsp				; rbp = aligned rbp
    113. 

  113. 	lea	rsp, [wk(0)]
    114. 

  114. 	collect_args
    115. 

  115. 

  116. 	; ---- Pass 1: process rows.
    117. 

  117. 

  118. 	mov	rdx, r10	; (DCTELEM *)
    119. 

  119. 

  120. 	movdqa	xmm0, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_DCTELEM)]
    121. 

  121. 	movdqa	xmm1, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_DCTELEM)]
    122. 

  122. 	movdqa	xmm2, XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_DCTELEM)]
    123. 

  123. 	movdqa	xmm3, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_DCTELEM)]
    124. 

  124. 

  125. 	; xmm0=(00 01 02 03 04 05 06 07), xmm2=(20 21 22 23 24 25 26 27)
    126. 

  126. 	; xmm1=(10 11 12 13 14 15 16 17), xmm3=(30 31 32 33 34 35 36 37)
    127. 

  127. 

  128. 	movdqa    xmm4,xmm0		; transpose coefficients(phase 1)
    129. 

  129. 	punpcklwd xmm0,xmm1		; xmm0=(00 10 01 11 02 12 03 13)
    130. 

  130. 	punpckhwd xmm4,xmm1		; xmm4=(04 14 05 15 06 16 07 17)
    131. 

  131. 	movdqa    xmm5,xmm2		; transpose coefficients(phase 1)
    132. 

  132. 	punpcklwd xmm2,xmm3		; xmm2=(20 30 21 31 22 32 23 33)
    133. 

  133. 	punpckhwd xmm5,xmm3		; xmm5=(24 34 25 35 26 36 27 37)
    134. 

  134. 

  135. 	movdqa	xmm6, XMMWORD [XMMBLOCK(4,0,rdx,SIZEOF_DCTELEM)]
    136. 

  136. 	movdqa	xmm7, XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_DCTELEM)]
    137. 

  137. 	movdqa	xmm1, XMMWORD [XMMBLOCK(6,0,rdx,SIZEOF_DCTELEM)]
    138. 

  138. 	movdqa	xmm3, XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_DCTELEM)]
    139. 

  139. 

  140. 	; xmm6=( 4 12 20 28 36 44 52 60), xmm1=( 6 14 22 30 38 46 54 62)
    141. 

  141. 	; xmm7=( 5 13 21 29 37 45 53 61), xmm3=( 7 15 23 31 39 47 55 63)
    142. 

  142. 

  143. 	movdqa	XMMWORD [wk(0)], xmm2	; wk(0)=(20 30 21 31 22 32 23 33)
    144. 

  144. 	movdqa	XMMWORD [wk(1)], xmm5	; wk(1)=(24 34 25 35 26 36 27 37)
    145. 

  145. 

  146. 	movdqa    xmm2,xmm6		; transpose coefficients(phase 1)
    147. 

  147. 	punpcklwd xmm6,xmm7		; xmm6=(40 50 41 51 42 52 43 53)
    148. 

  148. 	punpckhwd xmm2,xmm7		; xmm2=(44 54 45 55 46 56 47 57)
    149. 

  149. 	movdqa    xmm5,xmm1		; transpose coefficients(phase 1)
    150. 

  150. 	punpcklwd xmm1,xmm3		; xmm1=(60 70 61 71 62 72 63 73)
    151. 

  151. 	punpckhwd xmm5,xmm3		; xmm5=(64 74 65 75 66 76 67 77)
    152. 

  152. 

  153. 	movdqa    xmm7,xmm6		; transpose coefficients(phase 2)
    154. 

  154. 	punpckldq xmm6,xmm1		; xmm6=(40 50 60 70 41 51 61 71)
    155. 

  155. 	punpckhdq xmm7,xmm1		; xmm7=(42 52 62 72 43 53 63 73)
    156. 

  156. 	movdqa    xmm3,xmm2		; transpose coefficients(phase 2)
    157. 

  157. 	punpckldq xmm2,xmm5		; xmm2=(44 54 64 74 45 55 65 75)
    158. 

  158. 	punpckhdq xmm3,xmm5		; xmm3=(46 56 66 76 47 57 67 77)
    159. 

  159. 

  160. 	movdqa	xmm1, XMMWORD [wk(0)]	; xmm1=(20 30 21 31 22 32 23 33)
    161. 

  161. 	movdqa	xmm5, XMMWORD [wk(1)]	; xmm5=(24 34 25 35 26 36 27 37)
    162. 

  162. 	movdqa	XMMWORD [wk(2)], xmm7	; wk(2)=(42 52 62 72 43 53 63 73)
    163. 

  163. 	movdqa	XMMWORD [wk(3)], xmm2	; wk(3)=(44 54 64 74 45 55 65 75)
    164. 

  164. 

  165. 	movdqa    xmm7,xmm0		; transpose coefficients(phase 2)
    166. 

  166. 	punpckldq xmm0,xmm1		; xmm0=(00 10 20 30 01 11 21 31)
    167. 

  167. 	punpckhdq xmm7,xmm1		; xmm7=(02 12 22 32 03 13 23 33)
    168. 

  168. 	movdqa    xmm2,xmm4		; transpose coefficients(phase 2)
    169. 

  169. 	punpckldq xmm4,xmm5		; xmm4=(04 14 24 34 05 15 25 35)
    170. 

  170. 	punpckhdq xmm2,xmm5		; xmm2=(06 16 26 36 07 17 27 37)
    171. 

  171. 

  172. 	movdqa     xmm1,xmm0		; transpose coefficients(phase 3)
    173. 

  173. 	punpcklqdq xmm0,xmm6		; xmm0=(00 10 20 30 40 50 60 70)=data0
    174. 

  174. 	punpckhqdq xmm1,xmm6		; xmm1=(01 11 21 31 41 51 61 71)=data1
    175. 

  175. 	movdqa     xmm5,xmm2		; transpose coefficients(phase 3)
    176. 

  176. 	punpcklqdq xmm2,xmm3		; xmm2=(06 16 26 36 46 56 66 76)=data6
    177. 

  177. 	punpckhqdq xmm5,xmm3		; xmm5=(07 17 27 37 47 57 67 77)=data7
    178. 

  178. 

  179. 	movdqa	xmm6,xmm1
    180. 

  180. 	movdqa	xmm3,xmm0
    181. 

  181. 	psubw	xmm1,xmm2		; xmm1=data1-data6=tmp6
    182. 

  182. 	psubw	xmm0,xmm5		; xmm0=data0-data7=tmp7
    183. 

  183. 	paddw	xmm6,xmm2		; xmm6=data1+data6=tmp1
    184. 

  184. 	paddw	xmm3,xmm5		; xmm3=data0+data7=tmp0
    185. 

  185. 

  186. 	movdqa	xmm2, XMMWORD [wk(2)]	; xmm2=(42 52 62 72 43 53 63 73)
    187. 

  187. 	movdqa	xmm5, XMMWORD [wk(3)]	; xmm5=(44 54 64 74 45 55 65 75)
    188. 

  188. 	movdqa	XMMWORD [wk(0)], xmm1	; wk(0)=tmp6
    189. 

  189. 	movdqa	XMMWORD [wk(1)], xmm0	; wk(1)=tmp7
    190. 

  190. 

  191. 	movdqa     xmm1,xmm7		; transpose coefficients(phase 3)
    192. 

  192. 	punpcklqdq xmm7,xmm2		; xmm7=(02 12 22 32 42 52 62 72)=data2
    193. 

  193. 	punpckhqdq xmm1,xmm2		; xmm1=(03 13 23 33 43 53 63 73)=data3
    194. 

  194. 	movdqa     xmm0,xmm4		; transpose coefficients(phase 3)
    195. 

  195. 	punpcklqdq xmm4,xmm5		; xmm4=(04 14 24 34 44 54 64 74)=data4
    196. 

  196. 	punpckhqdq xmm0,xmm5		; xmm0=(05 15 25 35 45 55 65 75)=data5
    197. 

  197. 

  198. 	movdqa	xmm2,xmm1
    199. 

  199. 	movdqa	xmm5,xmm7
    200. 

  200. 	paddw	xmm1,xmm4		; xmm1=data3+data4=tmp3
    201. 

  201. 	paddw	xmm7,xmm0		; xmm7=data2+data5=tmp2
    202. 

  202. 	psubw	xmm2,xmm4		; xmm2=data3-data4=tmp4
    203. 

  203. 	psubw	xmm5,xmm0		; xmm5=data2-data5=tmp5
    204. 

  204. 

  205. 	; -- Even part
    206. 

  206. 

  207. 	movdqa	xmm4,xmm3
    208. 

  208. 	movdqa	xmm0,xmm6
    209. 

  209. 	paddw	xmm3,xmm1		; xmm3=tmp10
    210. 

  210. 	paddw	xmm6,xmm7		; xmm6=tmp11
    211. 

  211. 	psubw	xmm4,xmm1		; xmm4=tmp13
    212. 

  212. 	psubw	xmm0,xmm7		; xmm0=tmp12
    213. 

  213. 

  214. 	movdqa	xmm1,xmm3
    215. 

  215. 	paddw	xmm3,xmm6		; xmm3=tmp10+tmp11
    216. 

  216. 	psubw	xmm1,xmm6		; xmm1=tmp10-tmp11
    217. 

  217. 

  218. 	psllw	xmm3,PASS1_BITS		; xmm3=data0
    219. 

  219. 	psllw	xmm1,PASS1_BITS		; xmm1=data4
    220. 

  220. 

  221. 	movdqa	XMMWORD [wk(2)], xmm3	; wk(2)=data0
    222. 

  222. 	movdqa	XMMWORD [wk(3)], xmm1	; wk(3)=data4
    223. 

  223. 

  224. 	; (Original)
    225. 

  225. 	; z1 = (tmp12 + tmp13) * 0.541196100;
    226. 

  226. 	; data2 = z1 + tmp13 * 0.765366865;
    227. 

  227. 	; data6 = z1 + tmp12 * -1.847759065;
    228. 

  228. 	;
    229. 

  229. 	; (This implementation)
    230. 

  230. 	; data2 = tmp13 * (0.541196100 + 0.765366865) + tmp12 * 0.541196100;
    231. 

  231. 	; data6 = tmp13 * 0.541196100 + tmp12 * (0.541196100 - 1.847759065);
    232. 

  232. 

  233. 	movdqa    xmm7,xmm4		; xmm4=tmp13
    234. 

  234. 	movdqa    xmm6,xmm4
    235. 

  235. 	punpcklwd xmm7,xmm0		; xmm0=tmp12
    236. 

  236. 	punpckhwd xmm6,xmm0
    237. 

  237. 	movdqa    xmm4,xmm7
    238. 

  238. 	movdqa    xmm0,xmm6
    239. 

  239. 	pmaddwd   xmm7,[rel PW_F130_F054]	; xmm7=data2L
    240. 

  240. 	pmaddwd   xmm6,[rel PW_F130_F054]	; xmm6=data2H
    241. 

  241. 	pmaddwd   xmm4,[rel PW_F054_MF130]	; xmm4=data6L
    242. 

  242. 	pmaddwd   xmm0,[rel PW_F054_MF130]	; xmm0=data6H
    243. 

  243. 

  244. 	paddd	xmm7,[rel PD_DESCALE_P1]
    245. 

  245. 	paddd	xmm6,[rel PD_DESCALE_P1]
    246. 

  246. 	psrad	xmm7,DESCALE_P1
    247. 

  247. 	psrad	xmm6,DESCALE_P1
    248. 

  248. 	paddd	xmm4,[rel PD_DESCALE_P1]
    249. 

  249. 	paddd	xmm0,[rel PD_DESCALE_P1]
    250. 

  250. 	psrad	xmm4,DESCALE_P1
    251. 

  251. 	psrad	xmm0,DESCALE_P1
    252. 

  252. 

  253. 	packssdw  xmm7,xmm6		; xmm7=data2
    254. 

  254. 	packssdw  xmm4,xmm0		; xmm4=data6
    255. 

  255. 

  256. 	movdqa	XMMWORD [wk(4)], xmm7	; wk(4)=data2
    257. 

  257. 	movdqa	XMMWORD [wk(5)], xmm4	; wk(5)=data6
    258. 

  258. 

  259. 	; -- Odd part
    260. 

  260. 

  261. 	movdqa	xmm3, XMMWORD [wk(0)]	; xmm3=tmp6
    262. 

  262. 	movdqa	xmm1, XMMWORD [wk(1)]	; xmm1=tmp7
    263. 

  263. 

  264. 	movdqa	xmm6,xmm2		; xmm2=tmp4
    265. 

  265. 	movdqa	xmm0,xmm5		; xmm5=tmp5
    266. 

  266. 	paddw	xmm6,xmm3		; xmm6=z3
    267. 

  267. 	paddw	xmm0,xmm1		; xmm0=z4
    268. 

  268. 

  269. 	; (Original)
    270. 

  270. 	; z5 = (z3 + z4) * 1.175875602;
    271. 

  271. 	; z3 = z3 * -1.961570560;  z4 = z4 * -0.390180644;
    272. 

  272. 	; z3 += z5;  z4 += z5;
    273. 

  273. 	;
    274. 

  274. 	; (This implementation)
    275. 

  275. 	; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602;
    276. 

  276. 	; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644);
    277. 

  277. 

  278. 	movdqa    xmm7,xmm6
    279. 

  279. 	movdqa    xmm4,xmm6
    280. 

  280. 	punpcklwd xmm7,xmm0
    281. 

  281. 	punpckhwd xmm4,xmm0
    282. 

  282. 	movdqa    xmm6,xmm7
    283. 

  283. 	movdqa    xmm0,xmm4
    284. 

  284. 	pmaddwd   xmm7,[rel PW_MF078_F117]	; xmm7=z3L
    285. 

  285. 	pmaddwd   xmm4,[rel PW_MF078_F117]	; xmm4=z3H
    286. 

  286. 	pmaddwd   xmm6,[rel PW_F117_F078]	; xmm6=z4L
    287. 

  287. 	pmaddwd   xmm0,[rel PW_F117_F078]	; xmm0=z4H
    288. 

  288. 

  289. 	movdqa	XMMWORD [wk(0)], xmm7	; wk(0)=z3L
    290. 

  290. 	movdqa	XMMWORD [wk(1)], xmm4	; wk(1)=z3H
    291. 

  291. 

  292. 	; (Original)
    293. 

  293. 	; z1 = tmp4 + tmp7;  z2 = tmp5 + tmp6;
    294. 

  294. 	; tmp4 = tmp4 * 0.298631336;  tmp5 = tmp5 * 2.053119869;
    295. 

  295. 	; tmp6 = tmp6 * 3.072711026;  tmp7 = tmp7 * 1.501321110;
    296. 

  296. 	; z1 = z1 * -0.899976223;  z2 = z2 * -2.562915447;
    297. 

  297. 	; data7 = tmp4 + z1 + z3;  data5 = tmp5 + z2 + z4;
    298. 

  298. 	; data3 = tmp6 + z2 + z3;  data1 = tmp7 + z1 + z4;
    299. 

  299. 	;
    300. 

  300. 	; (This implementation)
    301. 

  301. 	; tmp4 = tmp4 * (0.298631336 - 0.899976223) + tmp7 * -0.899976223;
    302. 

  302. 	; tmp5 = tmp5 * (2.053119869 - 2.562915447) + tmp6 * -2.562915447;
    303. 

  303. 	; tmp6 = tmp5 * -2.562915447 + tmp6 * (3.072711026 - 2.562915447);
    304. 

  304. 	; tmp7 = tmp4 * -0.899976223 + tmp7 * (1.501321110 - 0.899976223);
    305. 

  305. 	; data7 = tmp4 + z3;  data5 = tmp5 + z4;
    306. 

  306. 	; data3 = tmp6 + z3;  data1 = tmp7 + z4;
    307. 

  307. 

  308. 	movdqa    xmm7,xmm2
    309. 

  309. 	movdqa    xmm4,xmm2
    310. 

  310. 	punpcklwd xmm7,xmm1
    311. 

  311. 	punpckhwd xmm4,xmm1
    312. 

  312. 	movdqa    xmm2,xmm7
    313. 

  313. 	movdqa    xmm1,xmm4
    314. 

  314. 	pmaddwd   xmm7,[rel PW_MF060_MF089]	; xmm7=tmp4L
    315. 

  315. 	pmaddwd   xmm4,[rel PW_MF060_MF089]	; xmm4=tmp4H
    316. 

  316. 	pmaddwd   xmm2,[rel PW_MF089_F060]	; xmm2=tmp7L
    317. 

  317. 	pmaddwd   xmm1,[rel PW_MF089_F060]	; xmm1=tmp7H
    318. 

  318. 

  319. 	paddd	xmm7, XMMWORD [wk(0)]	; xmm7=data7L
    320. 

  320. 	paddd	xmm4, XMMWORD [wk(1)]	; xmm4=data7H
    321. 

  321. 	paddd	xmm2,xmm6		; xmm2=data1L
    322. 

  322. 	paddd	xmm1,xmm0		; xmm1=data1H
    323. 

  323. 

  324. 	paddd	xmm7,[rel PD_DESCALE_P1]
    325. 

  325. 	paddd	xmm4,[rel PD_DESCALE_P1]
    326. 

  326. 	psrad	xmm7,DESCALE_P1
    327. 

  327. 	psrad	xmm4,DESCALE_P1
    328. 

  328. 	paddd	xmm2,[rel PD_DESCALE_P1]
    329. 

  329. 	paddd	xmm1,[rel PD_DESCALE_P1]
    330. 

  330. 	psrad	xmm2,DESCALE_P1
    331. 

  331. 	psrad	xmm1,DESCALE_P1
    332. 

  332. 

  333. 	packssdw  xmm7,xmm4		; xmm7=data7
    334. 

  334. 	packssdw  xmm2,xmm1		; xmm2=data1
    335. 

  335. 

  336. 	movdqa    xmm4,xmm5
    337. 

  337. 	movdqa    xmm1,xmm5
    338. 

  338. 	punpcklwd xmm4,xmm3
    339. 

  339. 	punpckhwd xmm1,xmm3
    340. 

  340. 	movdqa    xmm5,xmm4
    341. 

  341. 	movdqa    xmm3,xmm1
    342. 

  342. 	pmaddwd   xmm4,[rel PW_MF050_MF256]	; xmm4=tmp5L
    343. 

  343. 	pmaddwd   xmm1,[rel PW_MF050_MF256]	; xmm1=tmp5H
    344. 

  344. 	pmaddwd   xmm5,[rel PW_MF256_F050]	; xmm5=tmp6L
    345. 

  345. 	pmaddwd   xmm3,[rel PW_MF256_F050]	; xmm3=tmp6H
    346. 

  346. 

  347. 	paddd	xmm4,xmm6		; xmm4=data5L
    348. 

  348. 	paddd	xmm1,xmm0		; xmm1=data5H
    349. 

  349. 	paddd	xmm5, XMMWORD [wk(0)]	; xmm5=data3L
    350. 

  350. 	paddd	xmm3, XMMWORD [wk(1)]	; xmm3=data3H
    351. 

  351. 

  352. 	paddd	xmm4,[rel PD_DESCALE_P1]
    353. 

  353. 	paddd	xmm1,[rel PD_DESCALE_P1]
    354. 

  354. 	psrad	xmm4,DESCALE_P1
    355. 

  355. 	psrad	xmm1,DESCALE_P1
    356. 

  356. 	paddd	xmm5,[rel PD_DESCALE_P1]
    357. 

  357. 	paddd	xmm3,[rel PD_DESCALE_P1]
    358. 

  358. 	psrad	xmm5,DESCALE_P1
    359. 

  359. 	psrad	xmm3,DESCALE_P1
    360. 

  360. 

  361. 	packssdw  xmm4,xmm1		; xmm4=data5
    362. 

  362. 	packssdw  xmm5,xmm3		; xmm5=data3
    363. 

  363. 

  364. 	; ---- Pass 2: process columns.
    365. 

  365. 

  366. 	movdqa	xmm6, XMMWORD [wk(2)]	; xmm6=col0
    367. 

  367. 	movdqa	xmm0, XMMWORD [wk(4)]	; xmm0=col2
    368. 

  368. 

  369. 	; xmm6=(00 10 20 30 40 50 60 70), xmm0=(02 12 22 32 42 52 62 72)
    370. 

  370. 	; xmm2=(01 11 21 31 41 51 61 71), xmm5=(03 13 23 33 43 53 63 73)
    371. 

  371. 

  372. 	movdqa    xmm1,xmm6		; transpose coefficients(phase 1)
    373. 

  373. 	punpcklwd xmm6,xmm2		; xmm6=(00 01 10 11 20 21 30 31)
    374. 

  374. 	punpckhwd xmm1,xmm2		; xmm1=(40 41 50 51 60 61 70 71)
    375. 

  375. 	movdqa    xmm3,xmm0		; transpose coefficients(phase 1)
    376. 

  376. 	punpcklwd xmm0,xmm5		; xmm0=(02 03 12 13 22 23 32 33)
    377. 

  377. 	punpckhwd xmm3,xmm5		; xmm3=(42 43 52 53 62 63 72 73)
    378. 

  378. 

  379. 	movdqa	xmm2, XMMWORD [wk(3)]	; xmm2=col4
    380. 

  380. 	movdqa	xmm5, XMMWORD [wk(5)]	; xmm5=col6
    381. 

  381. 

  382. 	; xmm2=(04 14 24 34 44 54 64 74), xmm5=(06 16 26 36 46 56 66 76)
    383. 

  383. 	; xmm4=(05 15 25 35 45 55 65 75), xmm7=(07 17 27 37 47 57 67 77)
    384. 

  384. 

  385. 	movdqa	XMMWORD [wk(0)], xmm0	; wk(0)=(02 03 12 13 22 23 32 33)
    386. 

  386. 	movdqa	XMMWORD [wk(1)], xmm3	; wk(1)=(42 43 52 53 62 63 72 73)
    387. 

  387. 

  388. 	movdqa    xmm0,xmm2		; transpose coefficients(phase 1)
    389. 

  389. 	punpcklwd xmm2,xmm4		; xmm2=(04 05 14 15 24 25 34 35)
    390. 

  390. 	punpckhwd xmm0,xmm4		; xmm0=(44 45 54 55 64 65 74 75)
    391. 

  391. 	movdqa    xmm3,xmm5		; transpose coefficients(phase 1)
    392. 

  392. 	punpcklwd xmm5,xmm7		; xmm5=(06 07 16 17 26 27 36 37)
    393. 

  393. 	punpckhwd xmm3,xmm7		; xmm3=(46 47 56 57 66 67 76 77)
    394. 

  394. 

  395. 	movdqa    xmm4,xmm2		; transpose coefficients(phase 2)
    396. 

  396. 	punpckldq xmm2,xmm5		; xmm2=(04 05 06 07 14 15 16 17)
    397. 

  397. 	punpckhdq xmm4,xmm5		; xmm4=(24 25 26 27 34 35 36 37)
    398. 

  398. 	movdqa    xmm7,xmm0		; transpose coefficients(phase 2)
    399. 

  399. 	punpckldq xmm0,xmm3		; xmm0=(44 45 46 47 54 55 56 57)
    400. 

  400. 	punpckhdq xmm7,xmm3		; xmm7=(64 65 66 67 74 75 76 77)
    401. 

  401. 

  402. 	movdqa	xmm5, XMMWORD [wk(0)]	; xmm5=(02 03 12 13 22 23 32 33)
    403. 

  403. 	movdqa	xmm3, XMMWORD [wk(1)]	; xmm3=(42 43 52 53 62 63 72 73)
    404. 

  404. 	movdqa	XMMWORD [wk(2)], xmm4	; wk(2)=(24 25 26 27 34 35 36 37)
    405. 

  405. 	movdqa	XMMWORD [wk(3)], xmm0	; wk(3)=(44 45 46 47 54 55 56 57)
    406. 

  406. 

  407. 	movdqa    xmm4,xmm6		; transpose coefficients(phase 2)
    408. 

  408. 	punpckldq xmm6,xmm5		; xmm6=(00 01 02 03 10 11 12 13)
    409. 

  409. 	punpckhdq xmm4,xmm5		; xmm4=(20 21 22 23 30 31 32 33)
    410. 

  410. 	movdqa    xmm0,xmm1		; transpose coefficients(phase 2)
    411. 

  411. 	punpckldq xmm1,xmm3		; xmm1=(40 41 42 43 50 51 52 53)
    412. 

  412. 	punpckhdq xmm0,xmm3		; xmm0=(60 61 62 63 70 71 72 73)
    413. 

  413. 

  414. 	movdqa     xmm5,xmm6		; transpose coefficients(phase 3)
    415. 

  415. 	punpcklqdq xmm6,xmm2		; xmm6=(00 01 02 03 04 05 06 07)=data0
    416. 

  416. 	punpckhqdq xmm5,xmm2		; xmm5=(10 11 12 13 14 15 16 17)=data1
    417. 

  417. 	movdqa     xmm3,xmm0		; transpose coefficients(phase 3)
    418. 

  418. 	punpcklqdq xmm0,xmm7		; xmm0=(60 61 62 63 64 65 66 67)=data6
    419. 

  419. 	punpckhqdq xmm3,xmm7		; xmm3=(70 71 72 73 74 75 76 77)=data7
    420. 

  420. 

  421. 	movdqa	xmm2,xmm5
    422. 

  422. 	movdqa	xmm7,xmm6
    423. 

  423. 	psubw	xmm5,xmm0		; xmm5=data1-data6=tmp6
    424. 

  424. 	psubw	xmm6,xmm3		; xmm6=data0-data7=tmp7
    425. 

  425. 	paddw	xmm2,xmm0		; xmm2=data1+data6=tmp1
    426. 

  426. 	paddw	xmm7,xmm3		; xmm7=data0+data7=tmp0
    427. 

  427. 

  428. 	movdqa	xmm0, XMMWORD [wk(2)]	; xmm0=(24 25 26 27 34 35 36 37)
    429. 

  429. 	movdqa	xmm3, XMMWORD [wk(3)]	; xmm3=(44 45 46 47 54 55 56 57)
    430. 

  430. 	movdqa	XMMWORD [wk(0)], xmm5	; wk(0)=tmp6
    431. 

  431. 	movdqa	XMMWORD [wk(1)], xmm6	; wk(1)=tmp7
    432. 

  432. 

  433. 	movdqa     xmm5,xmm4		; transpose coefficients(phase 3)
    434. 

  434. 	punpcklqdq xmm4,xmm0		; xmm4=(20 21 22 23 24 25 26 27)=data2
    435. 

  435. 	punpckhqdq xmm5,xmm0		; xmm5=(30 31 32 33 34 35 36 37)=data3
    436. 

  436. 	movdqa     xmm6,xmm1		; transpose coefficients(phase 3)
    437. 

  437. 	punpcklqdq xmm1,xmm3		; xmm1=(40 41 42 43 44 45 46 47)=data4
    438. 

  438. 	punpckhqdq xmm6,xmm3		; xmm6=(50 51 52 53 54 55 56 57)=data5
    439. 

  439. 

  440. 	movdqa	xmm0,xmm5
    441. 

  441. 	movdqa	xmm3,xmm4
    442. 

  442. 	paddw	xmm5,xmm1		; xmm5=data3+data4=tmp3
    443. 

  443. 	paddw	xmm4,xmm6		; xmm4=data2+data5=tmp2
    444. 

  444. 	psubw	xmm0,xmm1		; xmm0=data3-data4=tmp4
    445. 

  445. 	psubw	xmm3,xmm6		; xmm3=data2-data5=tmp5
    446. 

  446. 

  447. 	; -- Even part
    448. 

  448. 

  449. 	movdqa	xmm1,xmm7
    450. 

  450. 	movdqa	xmm6,xmm2
    451. 

  451. 	paddw	xmm7,xmm5		; xmm7=tmp10
    452. 

  452. 	paddw	xmm2,xmm4		; xmm2=tmp11
    453. 

  453. 	psubw	xmm1,xmm5		; xmm1=tmp13
    454. 

  454. 	psubw	xmm6,xmm4		; xmm6=tmp12
    455. 

  455. 

  456. 	movdqa	xmm5,xmm7
    457. 

  457. 	paddw	xmm7,xmm2		; xmm7=tmp10+tmp11
    458. 

  458. 	psubw	xmm5,xmm2		; xmm5=tmp10-tmp11
    459. 

  459. 

  460. 	paddw	xmm7,[rel PW_DESCALE_P2X]
    461. 

  461. 	paddw	xmm5,[rel PW_DESCALE_P2X]
    462. 

  462. 	psraw	xmm7,PASS1_BITS		; xmm7=data0
    463. 

  463. 	psraw	xmm5,PASS1_BITS		; xmm5=data4
    464. 

  464. 

  465. 	movdqa	XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_DCTELEM)], xmm7
    466. 

  466. 	movdqa	XMMWORD [XMMBLOCK(4,0,rdx,SIZEOF_DCTELEM)], xmm5
    467. 

  467. 

  468. 	; (Original)
    469. 

  469. 	; z1 = (tmp12 + tmp13) * 0.541196100;
    470. 

  470. 	; data2 = z1 + tmp13 * 0.765366865;
    471. 

  471. 	; data6 = z1 + tmp12 * -1.847759065;
    472. 

  472. 	;
    473. 

  473. 	; (This implementation)
    474. 

  474. 	; data2 = tmp13 * (0.541196100 + 0.765366865) + tmp12 * 0.541196100;
    475. 

  475. 	; data6 = tmp13 * 0.541196100 + tmp12 * (0.541196100 - 1.847759065);
    476. 

  476. 

  477. 	movdqa    xmm4,xmm1		; xmm1=tmp13
    478. 

  478. 	movdqa    xmm2,xmm1
    479. 

  479. 	punpcklwd xmm4,xmm6		; xmm6=tmp12
    480. 

  480. 	punpckhwd xmm2,xmm6
    481. 

  481. 	movdqa    xmm1,xmm4
    482. 

  482. 	movdqa    xmm6,xmm2
    483. 

  483. 	pmaddwd   xmm4,[rel PW_F130_F054]	; xmm4=data2L
    484. 

  484. 	pmaddwd   xmm2,[rel PW_F130_F054]	; xmm2=data2H
    485. 

  485. 	pmaddwd   xmm1,[rel PW_F054_MF130]	; xmm1=data6L
    486. 

  486. 	pmaddwd   xmm6,[rel PW_F054_MF130]	; xmm6=data6H
    487. 

  487. 

  488. 	paddd	xmm4,[rel PD_DESCALE_P2]
    489. 

  489. 	paddd	xmm2,[rel PD_DESCALE_P2]
    490. 

  490. 	psrad	xmm4,DESCALE_P2
    491. 

  491. 	psrad	xmm2,DESCALE_P2
    492. 

  492. 	paddd	xmm1,[rel PD_DESCALE_P2]
    493. 

  493. 	paddd	xmm6,[rel PD_DESCALE_P2]
    494. 

  494. 	psrad	xmm1,DESCALE_P2
    495. 

  495. 	psrad	xmm6,DESCALE_P2
    496. 

  496. 

  497. 	packssdw  xmm4,xmm2		; xmm4=data2
    498. 

  498. 	packssdw  xmm1,xmm6		; xmm1=data6
    499. 

  499. 

  500. 	movdqa	XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_DCTELEM)], xmm4
    501. 

  501. 	movdqa	XMMWORD [XMMBLOCK(6,0,rdx,SIZEOF_DCTELEM)], xmm1
    502. 

  502. 

  503. 	; -- Odd part
    504. 

  504. 

  505. 	movdqa	xmm7, XMMWORD [wk(0)]	; xmm7=tmp6
    506. 

  506. 	movdqa	xmm5, XMMWORD [wk(1)]	; xmm5=tmp7
    507. 

  507. 

  508. 	movdqa	xmm2,xmm0		; xmm0=tmp4
    509. 

  509. 	movdqa	xmm6,xmm3		; xmm3=tmp5
    510. 

  510. 	paddw	xmm2,xmm7		; xmm2=z3
    511. 

  511. 	paddw	xmm6,xmm5		; xmm6=z4
    512. 

  512. 

  513. 	; (Original)
    514. 

  514. 	; z5 = (z3 + z4) * 1.175875602;
    515. 

  515. 	; z3 = z3 * -1.961570560;  z4 = z4 * -0.390180644;
    516. 

  516. 	; z3 += z5;  z4 += z5;
    517. 

  517. 	;
    518. 

  518. 	; (This implementation)
    519. 

  519. 	; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602;
    520. 

  520. 	; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644);
    521. 

  521. 

  522. 	movdqa    xmm4,xmm2
    523. 

  523. 	movdqa    xmm1,xmm2
    524. 

  524. 	punpcklwd xmm4,xmm6
    525. 

  525. 	punpckhwd xmm1,xmm6
    526. 

  526. 	movdqa    xmm2,xmm4
    527. 

  527. 	movdqa    xmm6,xmm1
    528. 

  528. 	pmaddwd   xmm4,[rel PW_MF078_F117]	; xmm4=z3L
    529. 

  529. 	pmaddwd   xmm1,[rel PW_MF078_F117]	; xmm1=z3H
    530. 

  530. 	pmaddwd   xmm2,[rel PW_F117_F078]	; xmm2=z4L
    531. 

  531. 	pmaddwd   xmm6,[rel PW_F117_F078]	; xmm6=z4H
    532. 

  532. 

  533. 	movdqa	XMMWORD [wk(0)], xmm4	; wk(0)=z3L
    534. 

  534. 	movdqa	XMMWORD [wk(1)], xmm1	; wk(1)=z3H
    535. 

  535. 

  536. 	; (Original)
    537. 

  537. 	; z1 = tmp4 + tmp7;  z2 = tmp5 + tmp6;
    538. 

  538. 	; tmp4 = tmp4 * 0.298631336;  tmp5 = tmp5 * 2.053119869;
    539. 

  539. 	; tmp6 = tmp6 * 3.072711026;  tmp7 = tmp7 * 1.501321110;
    540. 

  540. 	; z1 = z1 * -0.899976223;  z2 = z2 * -2.562915447;
    541. 

  541. 	; data7 = tmp4 + z1 + z3;  data5 = tmp5 + z2 + z4;
    542. 

  542. 	; data3 = tmp6 + z2 + z3;  data1 = tmp7 + z1 + z4;
    543. 

  543. 	;
    544. 

  544. 	; (This implementation)
    545. 

  545. 	; tmp4 = tmp4 * (0.298631336 - 0.899976223) + tmp7 * -0.899976223;
    546. 

  546. 	; tmp5 = tmp5 * (2.053119869 - 2.562915447) + tmp6 * -2.562915447;
    547. 

  547. 	; tmp6 = tmp5 * -2.562915447 + tmp6 * (3.072711026 - 2.562915447);
    548. 

  548. 	; tmp7 = tmp4 * -0.899976223 + tmp7 * (1.501321110 - 0.899976223);
    549. 

  549. 	; data7 = tmp4 + z3;  data5 = tmp5 + z4;
    550. 

  550. 	; data3 = tmp6 + z3;  data1 = tmp7 + z4;
    551. 

  551. 

  552. 	movdqa    xmm4,xmm0
    553. 

  553. 	movdqa    xmm1,xmm0
    554. 

  554. 	punpcklwd xmm4,xmm5
    555. 

  555. 	punpckhwd xmm1,xmm5
    556. 

  556. 	movdqa    xmm0,xmm4
    557. 

  557. 	movdqa    xmm5,xmm1
    558. 

  558. 	pmaddwd   xmm4,[rel PW_MF060_MF089]	; xmm4=tmp4L
    559. 

  559. 	pmaddwd   xmm1,[rel PW_MF060_MF089]	; xmm1=tmp4H
    560. 

  560. 	pmaddwd   xmm0,[rel PW_MF089_F060]	; xmm0=tmp7L
    561. 

  561. 	pmaddwd   xmm5,[rel PW_MF089_F060]	; xmm5=tmp7H
    562. 

  562. 

  563. 	paddd	xmm4, XMMWORD [wk(0)]	; xmm4=data7L
    564. 

  564. 	paddd	xmm1, XMMWORD [wk(1)]	; xmm1=data7H
    565. 

  565. 	paddd	xmm0,xmm2		; xmm0=data1L
    566. 

  566. 	paddd	xmm5,xmm6		; xmm5=data1H
    567. 

  567. 

  568. 	paddd	xmm4,[rel PD_DESCALE_P2]
    569. 

  569. 	paddd	xmm1,[rel PD_DESCALE_P2]
    570. 

  570. 	psrad	xmm4,DESCALE_P2
    571. 

  571. 	psrad	xmm1,DESCALE_P2
    572. 

  572. 	paddd	xmm0,[rel PD_DESCALE_P2]
    573. 

  573. 	paddd	xmm5,[rel PD_DESCALE_P2]
    574. 

  574. 	psrad	xmm0,DESCALE_P2
    575. 

  575. 	psrad	xmm5,DESCALE_P2
    576. 

  576. 

  577. 	packssdw  xmm4,xmm1		; xmm4=data7
    578. 

  578. 	packssdw  xmm0,xmm5		; xmm0=data1
    579. 

  579. 

  580. 	movdqa	XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_DCTELEM)], xmm4
    581. 

  581. 	movdqa	XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_DCTELEM)], xmm0
    582. 

  582. 

  583. 	movdqa    xmm1,xmm3
    584. 

  584. 	movdqa    xmm5,xmm3
    585. 

  585. 	punpcklwd xmm1,xmm7
    586. 

  586. 	punpckhwd xmm5,xmm7
    587. 

  587. 	movdqa    xmm3,xmm1
    588. 

  588. 	movdqa    xmm7,xmm5
    589. 

  589. 	pmaddwd   xmm1,[rel PW_MF050_MF256]	; xmm1=tmp5L
    590. 

  590. 	pmaddwd   xmm5,[rel PW_MF050_MF256]	; xmm5=tmp5H
    591. 

  591. 	pmaddwd   xmm3,[rel PW_MF256_F050]	; xmm3=tmp6L
    592. 

  592. 	pmaddwd   xmm7,[rel PW_MF256_F050]	; xmm7=tmp6H
    593. 

  593. 

  594. 	paddd	xmm1,xmm2		; xmm1=data5L
    595. 

  595. 	paddd	xmm5,xmm6		; xmm5=data5H
    596. 

  596. 	paddd	xmm3, XMMWORD [wk(0)]	; xmm3=data3L
    597. 

  597. 	paddd	xmm7, XMMWORD [wk(1)]	; xmm7=data3H
    598. 

  598. 

  599. 	paddd	xmm1,[rel PD_DESCALE_P2]
    600. 

  600. 	paddd	xmm5,[rel PD_DESCALE_P2]
    601. 

  601. 	psrad	xmm1,DESCALE_P2
    602. 

  602. 	psrad	xmm5,DESCALE_P2
    603. 

  603. 	paddd	xmm3,[rel PD_DESCALE_P2]
    604. 

  604. 	paddd	xmm7,[rel PD_DESCALE_P2]
    605. 

  605. 	psrad	xmm3,DESCALE_P2
    606. 

  606. 	psrad	xmm7,DESCALE_P2
    607. 

  607. 

  608. 	packssdw  xmm1,xmm5		; xmm1=data5
    609. 

  609. 	packssdw  xmm3,xmm7		; xmm3=data3
    610. 

  610. 

  611. 	movdqa	XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_DCTELEM)], xmm1
    612. 

  612. 	movdqa	XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_DCTELEM)], xmm3
    613. 

  613. 

  614. 	uncollect_args
    615. 

  615. 	mov	rsp,rbp		; rsp <- aligned rbp
    616. 

  616. 	pop	rsp		; rsp <- original rbp
    617. 

  617. 	pop	rbp
    618. 

  618. 	ret
    619. 

  619. 

  620. ; For some reason, the OS X linker does not honor the request to align the
    621. 

  621. ; segment unless we do this.
    622. 

  622. 	align	16
    623.