/media/libjpeg/simd/jiss2int.asm

http://github.com/zpao/v8monkey · Assembly · 859 lines · 599 code · 147 blank · 113 comment · 1 complexity · f49937901bc900d30ad238bae805f86d MD5 · raw file 

    

  1. ;
    2. 

  2. ; jiss2int.asm - accurate integer IDCT (SSE2)
    3. 

  3. ;
    4. 

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

  5. ;
    6. 

  6. ; Based on
    7. 

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

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

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

  10. ;
    11. 

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

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

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

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

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

  16. ;
    17. 

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

  18. ; inverse DCT (Discrete Cosine Transform). The following code is based
    19. 

  19. ; directly on the IJG's original jidctint.c; see the jidctint.c for
    20. 

  20. ; more details.
    21. 

  21. ;
    22. 

  22. ; [TAB8]
    23. 

  23. 

  24. %include "jsimdext.inc"
    25. 

  25. %include "jdct.inc"
    26. 

  26. 

  27. ; --------------------------------------------------------------------------
    28. 

  28. 

  29. %define CONST_BITS	13
    30. 

  30. %define PASS1_BITS	2
    31. 

  31. 

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

  33. %define DESCALE_P2	(CONST_BITS+PASS1_BITS+3)
    34. 

  34. 

  35. %if CONST_BITS == 13
    36. 

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

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

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

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

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

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

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

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

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

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

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

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

  48. %else
    49. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  63. %endif
    64. 

  64. 

  65. ; --------------------------------------------------------------------------
    66. 

  66. 	SECTION	SEG_CONST
    67. 

  67. 

  68. 	alignz	16
    69. 

  69. 	global	EXTN(jconst_idct_islow_sse2)
    70. 

  70. 

  71. EXTN(jconst_idct_islow_sse2):
    72. 

  72. 

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

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

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

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

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

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

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

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

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

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

  83. PB_CENTERJSAMP	times 16 db CENTERJSAMPLE
    84. 

  84. 

  85. 	alignz	16
    86. 

  86. 

  87. ; --------------------------------------------------------------------------
    88. 

  88. 	SECTION	SEG_TEXT
    89. 

  89. 	BITS	32
    90. 

  90. ;
    91. 

  91. ; Perform dequantization and inverse DCT on one block of coefficients.
    92. 

  92. ;
    93. 

  93. ; GLOBAL(void)
    94. 

  94. ; jsimd_idct_islow_sse2 (void * dct_table, JCOEFPTR coef_block,
    95. 

  95. ;                        JSAMPARRAY output_buf, JDIMENSION output_col)
    96. 

  96. ;
    97. 

  97. 

  98. %define dct_table(b)	(b)+8			; jpeg_component_info * compptr
    99. 

  99. %define coef_block(b)	(b)+12		; JCOEFPTR coef_block
    100. 

  100. %define output_buf(b)	(b)+16		; JSAMPARRAY output_buf
    101. 

  101. %define output_col(b)	(b)+20		; JDIMENSION output_col
    102. 

  102. 

  103. %define original_ebp	ebp+0
    104. 

  104. %define wk(i)		ebp-(WK_NUM-(i))*SIZEOF_XMMWORD	; xmmword wk[WK_NUM]
    105. 

  105. %define WK_NUM		12
    106. 

  106. 

  107. 	align	16
    108. 

  108. 	global	EXTN(jsimd_idct_islow_sse2)
    109. 

  109. 

  110. EXTN(jsimd_idct_islow_sse2):
    111. 

  111. 	push	ebp
    112. 

  112. 	mov	eax,esp				; eax = original ebp
    113. 

  113. 	sub	esp, byte 4
    114. 

  114. 	and	esp, byte (-SIZEOF_XMMWORD)	; align to 128 bits
    115. 

  115. 	mov	[esp],eax
    116. 

  116. 	mov	ebp,esp				; ebp = aligned ebp
    117. 

  117. 	lea	esp, [wk(0)]
    118. 

  118. 	pushpic	ebx
    119. 

  119. ;	push	ecx		; unused
    120. 

  120. ;	push	edx		; need not be preserved
    121. 

  121. 	push	esi
    122. 

  122. 	push	edi
    123. 

  123. 

  124. 	get_GOT	ebx		; get GOT address
    125. 

  125. 

  126. 	; ---- Pass 1: process columns from input.
    127. 

  127. 

  128. ;	mov	eax, [original_ebp]
    129. 

  129. 	mov	edx, POINTER [dct_table(eax)]	; quantptr
    130. 

  130. 	mov	esi, JCOEFPTR [coef_block(eax)]		; inptr
    131. 

  131. 

  132. %ifndef NO_ZERO_COLUMN_TEST_ISLOW_SSE2
    133. 

  133. 	mov	eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)]
    134. 

  134. 	or	eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)]
    135. 

  135. 	jnz	near .columnDCT
    136. 

  136. 

  137. 	movdqa	xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
    138. 

  138. 	movdqa	xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
    139. 

  139. 	por	xmm0, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
    140. 

  140. 	por	xmm1, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
    141. 

  141. 	por	xmm0, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
    142. 

  142. 	por	xmm1, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
    143. 

  143. 	por	xmm0, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
    144. 

  144. 	por	xmm1,xmm0
    145. 

  145. 	packsswb xmm1,xmm1
    146. 

  146. 	packsswb xmm1,xmm1
    147. 

  147. 	movd	eax,xmm1
    148. 

  148. 	test	eax,eax
    149. 

  149. 	jnz	short .columnDCT
    150. 

  150. 

  151. 	; -- AC terms all zero
    152. 

  152. 

  153. 	movdqa	xmm5, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
    154. 

  154. 	pmullw	xmm5, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
    155. 

  155. 

  156. 	psllw	xmm5,PASS1_BITS
    157. 

  157. 

  158. 	movdqa    xmm4,xmm5		; xmm5=in0=(00 01 02 03 04 05 06 07)
    159. 

  159. 	punpcklwd xmm5,xmm5		; xmm5=(00 00 01 01 02 02 03 03)
    160. 

  160. 	punpckhwd xmm4,xmm4		; xmm4=(04 04 05 05 06 06 07 07)
    161. 

  161. 

  162. 	pshufd	xmm7,xmm5,0x00		; xmm7=col0=(00 00 00 00 00 00 00 00)
    163. 

  163. 	pshufd	xmm6,xmm5,0x55		; xmm6=col1=(01 01 01 01 01 01 01 01)
    164. 

  164. 	pshufd	xmm1,xmm5,0xAA		; xmm1=col2=(02 02 02 02 02 02 02 02)
    165. 

  165. 	pshufd	xmm5,xmm5,0xFF		; xmm5=col3=(03 03 03 03 03 03 03 03)
    166. 

  166. 	pshufd	xmm0,xmm4,0x00		; xmm0=col4=(04 04 04 04 04 04 04 04)
    167. 

  167. 	pshufd	xmm3,xmm4,0x55		; xmm3=col5=(05 05 05 05 05 05 05 05)
    168. 

  168. 	pshufd	xmm2,xmm4,0xAA		; xmm2=col6=(06 06 06 06 06 06 06 06)
    169. 

  169. 	pshufd	xmm4,xmm4,0xFF		; xmm4=col7=(07 07 07 07 07 07 07 07)
    170. 

  170. 

  171. 	movdqa	XMMWORD [wk(8)], xmm6	; wk(8)=col1
    172. 

  172. 	movdqa	XMMWORD [wk(9)], xmm5	; wk(9)=col3
    173. 

  173. 	movdqa	XMMWORD [wk(10)], xmm3	; wk(10)=col5
    174. 

  174. 	movdqa	XMMWORD [wk(11)], xmm4	; wk(11)=col7
    175. 

  175. 	jmp	near .column_end
    176. 

  176. 	alignx	16,7
    177. 

  177. %endif
    178. 

  178. .columnDCT:
    179. 

  179. 

  180. 	; -- Even part
    181. 

  181. 

  182. 	movdqa	xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
    183. 

  183. 	movdqa	xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
    184. 

  184. 	pmullw	xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
    185. 

  185. 	pmullw	xmm1, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
    186. 

  186. 	movdqa	xmm2, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
    187. 

  187. 	movdqa	xmm3, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
    188. 

  188. 	pmullw	xmm2, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
    189. 

  189. 	pmullw	xmm3, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
    190. 

  190. 

  191. 	; (Original)
    192. 

  192. 	; z1 = (z2 + z3) * 0.541196100;
    193. 

  193. 	; tmp2 = z1 + z3 * -1.847759065;
    194. 

  194. 	; tmp3 = z1 + z2 * 0.765366865;
    195. 

  195. 	;
    196. 

  196. 	; (This implementation)
    197. 

  197. 	; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065);
    198. 

  198. 	; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100;
    199. 

  199. 

  200. 	movdqa    xmm4,xmm1		; xmm1=in2=z2
    201. 

  201. 	movdqa    xmm5,xmm1
    202. 

  202. 	punpcklwd xmm4,xmm3		; xmm3=in6=z3
    203. 

  203. 	punpckhwd xmm5,xmm3
    204. 

  204. 	movdqa    xmm1,xmm4
    205. 

  205. 	movdqa    xmm3,xmm5
    206. 

  206. 	pmaddwd   xmm4,[GOTOFF(ebx,PW_F130_F054)]	; xmm4=tmp3L
    207. 

  207. 	pmaddwd   xmm5,[GOTOFF(ebx,PW_F130_F054)]	; xmm5=tmp3H
    208. 

  208. 	pmaddwd   xmm1,[GOTOFF(ebx,PW_F054_MF130)]	; xmm1=tmp2L
    209. 

  209. 	pmaddwd   xmm3,[GOTOFF(ebx,PW_F054_MF130)]	; xmm3=tmp2H
    210. 

  210. 

  211. 	movdqa    xmm6,xmm0
    212. 

  212. 	paddw     xmm0,xmm2		; xmm0=in0+in4
    213. 

  213. 	psubw     xmm6,xmm2		; xmm6=in0-in4
    214. 

  214. 

  215. 	pxor      xmm7,xmm7
    216. 

  216. 	pxor      xmm2,xmm2
    217. 

  217. 	punpcklwd xmm7,xmm0		; xmm7=tmp0L
    218. 

  218. 	punpckhwd xmm2,xmm0		; xmm2=tmp0H
    219. 

  219. 	psrad     xmm7,(16-CONST_BITS)	; psrad xmm7,16 & pslld xmm7,CONST_BITS
    220. 

  220. 	psrad     xmm2,(16-CONST_BITS)	; psrad xmm2,16 & pslld xmm2,CONST_BITS
    221. 

  221. 

  222. 	movdqa	xmm0,xmm7
    223. 

  223. 	paddd	xmm7,xmm4		; xmm7=tmp10L
    224. 

  224. 	psubd	xmm0,xmm4		; xmm0=tmp13L
    225. 

  225. 	movdqa	xmm4,xmm2
    226. 

  226. 	paddd	xmm2,xmm5		; xmm2=tmp10H
    227. 

  227. 	psubd	xmm4,xmm5		; xmm4=tmp13H
    228. 

  228. 

  229. 	movdqa	XMMWORD [wk(0)], xmm7	; wk(0)=tmp10L
    230. 

  230. 	movdqa	XMMWORD [wk(1)], xmm2	; wk(1)=tmp10H
    231. 

  231. 	movdqa	XMMWORD [wk(2)], xmm0	; wk(2)=tmp13L
    232. 

  232. 	movdqa	XMMWORD [wk(3)], xmm4	; wk(3)=tmp13H
    233. 

  233. 

  234. 	pxor      xmm5,xmm5
    235. 

  235. 	pxor      xmm7,xmm7
    236. 

  236. 	punpcklwd xmm5,xmm6		; xmm5=tmp1L
    237. 

  237. 	punpckhwd xmm7,xmm6		; xmm7=tmp1H
    238. 

  238. 	psrad     xmm5,(16-CONST_BITS)	; psrad xmm5,16 & pslld xmm5,CONST_BITS
    239. 

  239. 	psrad     xmm7,(16-CONST_BITS)	; psrad xmm7,16 & pslld xmm7,CONST_BITS
    240. 

  240. 

  241. 	movdqa	xmm2,xmm5
    242. 

  242. 	paddd	xmm5,xmm1		; xmm5=tmp11L
    243. 

  243. 	psubd	xmm2,xmm1		; xmm2=tmp12L
    244. 

  244. 	movdqa	xmm0,xmm7
    245. 

  245. 	paddd	xmm7,xmm3		; xmm7=tmp11H
    246. 

  246. 	psubd	xmm0,xmm3		; xmm0=tmp12H
    247. 

  247. 

  248. 	movdqa	XMMWORD [wk(4)], xmm5	; wk(4)=tmp11L
    249. 

  249. 	movdqa	XMMWORD [wk(5)], xmm7	; wk(5)=tmp11H
    250. 

  250. 	movdqa	XMMWORD [wk(6)], xmm2	; wk(6)=tmp12L
    251. 

  251. 	movdqa	XMMWORD [wk(7)], xmm0	; wk(7)=tmp12H
    252. 

  252. 

  253. 	; -- Odd part
    254. 

  254. 

  255. 	movdqa	xmm4, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
    256. 

  256. 	movdqa	xmm6, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
    257. 

  257. 	pmullw	xmm4, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
    258. 

  258. 	pmullw	xmm6, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
    259. 

  259. 	movdqa	xmm1, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
    260. 

  260. 	movdqa	xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
    261. 

  261. 	pmullw	xmm1, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
    262. 

  262. 	pmullw	xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
    263. 

  263. 

  264. 	movdqa	xmm5,xmm6
    265. 

  265. 	movdqa	xmm7,xmm4
    266. 

  266. 	paddw	xmm5,xmm3		; xmm5=z3
    267. 

  267. 	paddw	xmm7,xmm1		; xmm7=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    xmm2,xmm5
    279. 

  279. 	movdqa    xmm0,xmm5
    280. 

  280. 	punpcklwd xmm2,xmm7
    281. 

  281. 	punpckhwd xmm0,xmm7
    282. 

  282. 	movdqa    xmm5,xmm2
    283. 

  283. 	movdqa    xmm7,xmm0
    284. 

  284. 	pmaddwd   xmm2,[GOTOFF(ebx,PW_MF078_F117)]	; xmm2=z3L
    285. 

  285. 	pmaddwd   xmm0,[GOTOFF(ebx,PW_MF078_F117)]	; xmm0=z3H
    286. 

  286. 	pmaddwd   xmm5,[GOTOFF(ebx,PW_F117_F078)]	; xmm5=z4L
    287. 

  287. 	pmaddwd   xmm7,[GOTOFF(ebx,PW_F117_F078)]	; xmm7=z4H
    288. 

  288. 

  289. 	movdqa	XMMWORD [wk(10)], xmm2	; wk(10)=z3L
    290. 

  290. 	movdqa	XMMWORD [wk(11)], xmm0	; wk(11)=z3H
    291. 

  291. 

  292. 	; (Original)
    293. 

  293. 	; z1 = tmp0 + tmp3;  z2 = tmp1 + tmp2;
    294. 

  294. 	; tmp0 = tmp0 * 0.298631336;  tmp1 = tmp1 * 2.053119869;
    295. 

  295. 	; tmp2 = tmp2 * 3.072711026;  tmp3 = tmp3 * 1.501321110;
    296. 

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

  297. 	; tmp0 += z1 + z3;  tmp1 += z2 + z4;
    298. 

  298. 	; tmp2 += z2 + z3;  tmp3 += z1 + z4;
    299. 

  299. 	;
    300. 

  300. 	; (This implementation)
    301. 

  301. 	; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223;
    302. 

  302. 	; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447;
    303. 

  303. 	; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447);
    304. 

  304. 	; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223);
    305. 

  305. 	; tmp0 += z3;  tmp1 += z4;
    306. 

  306. 	; tmp2 += z3;  tmp3 += z4;
    307. 

  307. 

  308. 	movdqa    xmm2,xmm3
    309. 

  309. 	movdqa    xmm0,xmm3
    310. 

  310. 	punpcklwd xmm2,xmm4
    311. 

  311. 	punpckhwd xmm0,xmm4
    312. 

  312. 	movdqa    xmm3,xmm2
    313. 

  313. 	movdqa    xmm4,xmm0
    314. 

  314. 	pmaddwd   xmm2,[GOTOFF(ebx,PW_MF060_MF089)]	; xmm2=tmp0L
    315. 

  315. 	pmaddwd   xmm0,[GOTOFF(ebx,PW_MF060_MF089)]	; xmm0=tmp0H
    316. 

  316. 	pmaddwd   xmm3,[GOTOFF(ebx,PW_MF089_F060)]	; xmm3=tmp3L
    317. 

  317. 	pmaddwd   xmm4,[GOTOFF(ebx,PW_MF089_F060)]	; xmm4=tmp3H
    318. 

  318. 

  319. 	paddd	xmm2, XMMWORD [wk(10)]	; xmm2=tmp0L
    320. 

  320. 	paddd	xmm0, XMMWORD [wk(11)]	; xmm0=tmp0H
    321. 

  321. 	paddd	xmm3,xmm5		; xmm3=tmp3L
    322. 

  322. 	paddd	xmm4,xmm7		; xmm4=tmp3H
    323. 

  323. 

  324. 	movdqa	XMMWORD [wk(8)], xmm2	; wk(8)=tmp0L
    325. 

  325. 	movdqa	XMMWORD [wk(9)], xmm0	; wk(9)=tmp0H
    326. 

  326. 

  327. 	movdqa    xmm2,xmm1
    328. 

  328. 	movdqa    xmm0,xmm1
    329. 

  329. 	punpcklwd xmm2,xmm6
    330. 

  330. 	punpckhwd xmm0,xmm6
    331. 

  331. 	movdqa    xmm1,xmm2
    332. 

  332. 	movdqa    xmm6,xmm0
    333. 

  333. 	pmaddwd   xmm2,[GOTOFF(ebx,PW_MF050_MF256)]	; xmm2=tmp1L
    334. 

  334. 	pmaddwd   xmm0,[GOTOFF(ebx,PW_MF050_MF256)]	; xmm0=tmp1H
    335. 

  335. 	pmaddwd   xmm1,[GOTOFF(ebx,PW_MF256_F050)]	; xmm1=tmp2L
    336. 

  336. 	pmaddwd   xmm6,[GOTOFF(ebx,PW_MF256_F050)]	; xmm6=tmp2H
    337. 

  337. 

  338. 	paddd	xmm2,xmm5		; xmm2=tmp1L
    339. 

  339. 	paddd	xmm0,xmm7		; xmm0=tmp1H
    340. 

  340. 	paddd	xmm1, XMMWORD [wk(10)]	; xmm1=tmp2L
    341. 

  341. 	paddd	xmm6, XMMWORD [wk(11)]	; xmm6=tmp2H
    342. 

  342. 

  343. 	movdqa	XMMWORD [wk(10)], xmm2	; wk(10)=tmp1L
    344. 

  344. 	movdqa	XMMWORD [wk(11)], xmm0	; wk(11)=tmp1H
    345. 

  345. 

  346. 	; -- Final output stage
    347. 

  347. 

  348. 	movdqa	xmm5, XMMWORD [wk(0)]	; xmm5=tmp10L
    349. 

  349. 	movdqa	xmm7, XMMWORD [wk(1)]	; xmm7=tmp10H
    350. 

  350. 

  351. 	movdqa	xmm2,xmm5
    352. 

  352. 	movdqa	xmm0,xmm7
    353. 

  353. 	paddd	xmm5,xmm3		; xmm5=data0L
    354. 

  354. 	paddd	xmm7,xmm4		; xmm7=data0H
    355. 

  355. 	psubd	xmm2,xmm3		; xmm2=data7L
    356. 

  356. 	psubd	xmm0,xmm4		; xmm0=data7H
    357. 

  357. 

  358. 	movdqa	xmm3,[GOTOFF(ebx,PD_DESCALE_P1)]	; xmm3=[PD_DESCALE_P1]
    359. 

  359. 

  360. 	paddd	xmm5,xmm3
    361. 

  361. 	paddd	xmm7,xmm3
    362. 

  362. 	psrad	xmm5,DESCALE_P1
    363. 

  363. 	psrad	xmm7,DESCALE_P1
    364. 

  364. 	paddd	xmm2,xmm3
    365. 

  365. 	paddd	xmm0,xmm3
    366. 

  366. 	psrad	xmm2,DESCALE_P1
    367. 

  367. 	psrad	xmm0,DESCALE_P1
    368. 

  368. 

  369. 	packssdw  xmm5,xmm7		; xmm5=data0=(00 01 02 03 04 05 06 07)
    370. 

  370. 	packssdw  xmm2,xmm0		; xmm2=data7=(70 71 72 73 74 75 76 77)
    371. 

  371. 

  372. 	movdqa	xmm4, XMMWORD [wk(4)]	; xmm4=tmp11L
    373. 

  373. 	movdqa	xmm3, XMMWORD [wk(5)]	; xmm3=tmp11H
    374. 

  374. 

  375. 	movdqa	xmm7,xmm4
    376. 

  376. 	movdqa	xmm0,xmm3
    377. 

  377. 	paddd	xmm4,xmm1		; xmm4=data1L
    378. 

  378. 	paddd	xmm3,xmm6		; xmm3=data1H
    379. 

  379. 	psubd	xmm7,xmm1		; xmm7=data6L
    380. 

  380. 	psubd	xmm0,xmm6		; xmm0=data6H
    381. 

  381. 

  382. 	movdqa	xmm1,[GOTOFF(ebx,PD_DESCALE_P1)]	; xmm1=[PD_DESCALE_P1]
    383. 

  383. 

  384. 	paddd	xmm4,xmm1
    385. 

  385. 	paddd	xmm3,xmm1
    386. 

  386. 	psrad	xmm4,DESCALE_P1
    387. 

  387. 	psrad	xmm3,DESCALE_P1
    388. 

  388. 	paddd	xmm7,xmm1
    389. 

  389. 	paddd	xmm0,xmm1
    390. 

  390. 	psrad	xmm7,DESCALE_P1
    391. 

  391. 	psrad	xmm0,DESCALE_P1
    392. 

  392. 

  393. 	packssdw  xmm4,xmm3		; xmm4=data1=(10 11 12 13 14 15 16 17)
    394. 

  394. 	packssdw  xmm7,xmm0		; xmm7=data6=(60 61 62 63 64 65 66 67)
    395. 

  395. 

  396. 	movdqa    xmm6,xmm5		; transpose coefficients(phase 1)
    397. 

  397. 	punpcklwd xmm5,xmm4		; xmm5=(00 10 01 11 02 12 03 13)
    398. 

  398. 	punpckhwd xmm6,xmm4		; xmm6=(04 14 05 15 06 16 07 17)
    399. 

  399. 	movdqa    xmm1,xmm7		; transpose coefficients(phase 1)
    400. 

  400. 	punpcklwd xmm7,xmm2		; xmm7=(60 70 61 71 62 72 63 73)
    401. 

  401. 	punpckhwd xmm1,xmm2		; xmm1=(64 74 65 75 66 76 67 77)
    402. 

  402. 

  403. 	movdqa	xmm3, XMMWORD [wk(6)]	; xmm3=tmp12L
    404. 

  404. 	movdqa	xmm0, XMMWORD [wk(7)]	; xmm0=tmp12H
    405. 

  405. 	movdqa	xmm4, XMMWORD [wk(10)]	; xmm4=tmp1L
    406. 

  406. 	movdqa	xmm2, XMMWORD [wk(11)]	; xmm2=tmp1H
    407. 

  407. 

  408. 	movdqa	XMMWORD [wk(0)], xmm5	; wk(0)=(00 10 01 11 02 12 03 13)
    409. 

  409. 	movdqa	XMMWORD [wk(1)], xmm6	; wk(1)=(04 14 05 15 06 16 07 17)
    410. 

  410. 	movdqa	XMMWORD [wk(4)], xmm7	; wk(4)=(60 70 61 71 62 72 63 73)
    411. 

  411. 	movdqa	XMMWORD [wk(5)], xmm1	; wk(5)=(64 74 65 75 66 76 67 77)
    412. 

  412. 

  413. 	movdqa	xmm5,xmm3
    414. 

  414. 	movdqa	xmm6,xmm0
    415. 

  415. 	paddd	xmm3,xmm4		; xmm3=data2L
    416. 

  416. 	paddd	xmm0,xmm2		; xmm0=data2H
    417. 

  417. 	psubd	xmm5,xmm4		; xmm5=data5L
    418. 

  418. 	psubd	xmm6,xmm2		; xmm6=data5H
    419. 

  419. 

  420. 	movdqa	xmm7,[GOTOFF(ebx,PD_DESCALE_P1)]	; xmm7=[PD_DESCALE_P1]
    421. 

  421. 

  422. 	paddd	xmm3,xmm7
    423. 

  423. 	paddd	xmm0,xmm7
    424. 

  424. 	psrad	xmm3,DESCALE_P1
    425. 

  425. 	psrad	xmm0,DESCALE_P1
    426. 

  426. 	paddd	xmm5,xmm7
    427. 

  427. 	paddd	xmm6,xmm7
    428. 

  428. 	psrad	xmm5,DESCALE_P1
    429. 

  429. 	psrad	xmm6,DESCALE_P1
    430. 

  430. 

  431. 	packssdw  xmm3,xmm0		; xmm3=data2=(20 21 22 23 24 25 26 27)
    432. 

  432. 	packssdw  xmm5,xmm6		; xmm5=data5=(50 51 52 53 54 55 56 57)
    433. 

  433. 

  434. 	movdqa	xmm1, XMMWORD [wk(2)]	; xmm1=tmp13L
    435. 

  435. 	movdqa	xmm4, XMMWORD [wk(3)]	; xmm4=tmp13H
    436. 

  436. 	movdqa	xmm2, XMMWORD [wk(8)]	; xmm2=tmp0L
    437. 

  437. 	movdqa	xmm7, XMMWORD [wk(9)]	; xmm7=tmp0H
    438. 

  438. 

  439. 	movdqa	xmm0,xmm1
    440. 

  440. 	movdqa	xmm6,xmm4
    441. 

  441. 	paddd	xmm1,xmm2		; xmm1=data3L
    442. 

  442. 	paddd	xmm4,xmm7		; xmm4=data3H
    443. 

  443. 	psubd	xmm0,xmm2		; xmm0=data4L
    444. 

  444. 	psubd	xmm6,xmm7		; xmm6=data4H
    445. 

  445. 

  446. 	movdqa	xmm2,[GOTOFF(ebx,PD_DESCALE_P1)]	; xmm2=[PD_DESCALE_P1]
    447. 

  447. 

  448. 	paddd	xmm1,xmm2
    449. 

  449. 	paddd	xmm4,xmm2
    450. 

  450. 	psrad	xmm1,DESCALE_P1
    451. 

  451. 	psrad	xmm4,DESCALE_P1
    452. 

  452. 	paddd	xmm0,xmm2
    453. 

  453. 	paddd	xmm6,xmm2
    454. 

  454. 	psrad	xmm0,DESCALE_P1
    455. 

  455. 	psrad	xmm6,DESCALE_P1
    456. 

  456. 

  457. 	packssdw  xmm1,xmm4		; xmm1=data3=(30 31 32 33 34 35 36 37)
    458. 

  458. 	packssdw  xmm0,xmm6		; xmm0=data4=(40 41 42 43 44 45 46 47)
    459. 

  459. 

  460. 	movdqa	xmm7, XMMWORD [wk(0)]	; xmm7=(00 10 01 11 02 12 03 13)
    461. 

  461. 	movdqa	xmm2, XMMWORD [wk(1)]	; xmm2=(04 14 05 15 06 16 07 17)
    462. 

  462. 

  463. 	movdqa    xmm4,xmm3		; transpose coefficients(phase 1)
    464. 

  464. 	punpcklwd xmm3,xmm1		; xmm3=(20 30 21 31 22 32 23 33)
    465. 

  465. 	punpckhwd xmm4,xmm1		; xmm4=(24 34 25 35 26 36 27 37)
    466. 

  466. 	movdqa    xmm6,xmm0		; transpose coefficients(phase 1)
    467. 

  467. 	punpcklwd xmm0,xmm5		; xmm0=(40 50 41 51 42 52 43 53)
    468. 

  468. 	punpckhwd xmm6,xmm5		; xmm6=(44 54 45 55 46 56 47 57)
    469. 

  469. 

  470. 	movdqa    xmm1,xmm7		; transpose coefficients(phase 2)
    471. 

  471. 	punpckldq xmm7,xmm3		; xmm7=(00 10 20 30 01 11 21 31)
    472. 

  472. 	punpckhdq xmm1,xmm3		; xmm1=(02 12 22 32 03 13 23 33)
    473. 

  473. 	movdqa    xmm5,xmm2		; transpose coefficients(phase 2)
    474. 

  474. 	punpckldq xmm2,xmm4		; xmm2=(04 14 24 34 05 15 25 35)
    475. 

  475. 	punpckhdq xmm5,xmm4		; xmm5=(06 16 26 36 07 17 27 37)
    476. 

  476. 

  477. 	movdqa	xmm3, XMMWORD [wk(4)]	; xmm3=(60 70 61 71 62 72 63 73)
    478. 

  478. 	movdqa	xmm4, XMMWORD [wk(5)]	; xmm4=(64 74 65 75 66 76 67 77)
    479. 

  479. 

  480. 	movdqa	XMMWORD [wk(6)], xmm2	; wk(6)=(04 14 24 34 05 15 25 35)
    481. 

  481. 	movdqa	XMMWORD [wk(7)], xmm5	; wk(7)=(06 16 26 36 07 17 27 37)
    482. 

  482. 

  483. 	movdqa    xmm2,xmm0		; transpose coefficients(phase 2)
    484. 

  484. 	punpckldq xmm0,xmm3		; xmm0=(40 50 60 70 41 51 61 71)
    485. 

  485. 	punpckhdq xmm2,xmm3		; xmm2=(42 52 62 72 43 53 63 73)
    486. 

  486. 	movdqa    xmm5,xmm6		; transpose coefficients(phase 2)
    487. 

  487. 	punpckldq xmm6,xmm4		; xmm6=(44 54 64 74 45 55 65 75)
    488. 

  488. 	punpckhdq xmm5,xmm4		; xmm5=(46 56 66 76 47 57 67 77)
    489. 

  489. 

  490. 	movdqa     xmm3,xmm7		; transpose coefficients(phase 3)
    491. 

  491. 	punpcklqdq xmm7,xmm0		; xmm7=col0=(00 10 20 30 40 50 60 70)
    492. 

  492. 	punpckhqdq xmm3,xmm0		; xmm3=col1=(01 11 21 31 41 51 61 71)
    493. 

  493. 	movdqa     xmm4,xmm1		; transpose coefficients(phase 3)
    494. 

  494. 	punpcklqdq xmm1,xmm2		; xmm1=col2=(02 12 22 32 42 52 62 72)
    495. 

  495. 	punpckhqdq xmm4,xmm2		; xmm4=col3=(03 13 23 33 43 53 63 73)
    496. 

  496. 

  497. 	movdqa	xmm0, XMMWORD [wk(6)]	; xmm0=(04 14 24 34 05 15 25 35)
    498. 

  498. 	movdqa	xmm2, XMMWORD [wk(7)]	; xmm2=(06 16 26 36 07 17 27 37)
    499. 

  499. 

  500. 	movdqa	XMMWORD [wk(8)], xmm3	; wk(8)=col1
    501. 

  501. 	movdqa	XMMWORD [wk(9)], xmm4	; wk(9)=col3
    502. 

  502. 

  503. 	movdqa     xmm3,xmm0		; transpose coefficients(phase 3)
    504. 

  504. 	punpcklqdq xmm0,xmm6		; xmm0=col4=(04 14 24 34 44 54 64 74)
    505. 

  505. 	punpckhqdq xmm3,xmm6		; xmm3=col5=(05 15 25 35 45 55 65 75)
    506. 

  506. 	movdqa     xmm4,xmm2		; transpose coefficients(phase 3)
    507. 

  507. 	punpcklqdq xmm2,xmm5		; xmm2=col6=(06 16 26 36 46 56 66 76)
    508. 

  508. 	punpckhqdq xmm4,xmm5		; xmm4=col7=(07 17 27 37 47 57 67 77)
    509. 

  509. 

  510. 	movdqa	XMMWORD [wk(10)], xmm3	; wk(10)=col5
    511. 

  511. 	movdqa	XMMWORD [wk(11)], xmm4	; wk(11)=col7
    512. 

  512. .column_end:
    513. 

  513. 

  514. 	; -- Prefetch the next coefficient block
    515. 

  515. 

  516. 	prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32]
    517. 

  517. 	prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32]
    518. 

  518. 	prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32]
    519. 

  519. 	prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32]
    520. 

  520. 

  521. 	; ---- Pass 2: process rows from work array, store into output array.
    522. 

  522. 

  523. 	mov	eax, [original_ebp]
    524. 

  524. 	mov	edi, JSAMPARRAY [output_buf(eax)]	; (JSAMPROW *)
    525. 

  525. 	mov	eax, JDIMENSION [output_col(eax)]
    526. 

  526. 

  527. 	; -- Even part
    528. 

  528. 

  529. 	; xmm7=col0, xmm1=col2, xmm0=col4, xmm2=col6
    530. 

  530. 

  531. 	; (Original)
    532. 

  532. 	; z1 = (z2 + z3) * 0.541196100;
    533. 

  533. 	; tmp2 = z1 + z3 * -1.847759065;
    534. 

  534. 	; tmp3 = z1 + z2 * 0.765366865;
    535. 

  535. 	;
    536. 

  536. 	; (This implementation)
    537. 

  537. 	; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065);
    538. 

  538. 	; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100;
    539. 

  539. 

  540. 	movdqa    xmm6,xmm1		; xmm1=in2=z2
    541. 

  541. 	movdqa    xmm5,xmm1
    542. 

  542. 	punpcklwd xmm6,xmm2		; xmm2=in6=z3
    543. 

  543. 	punpckhwd xmm5,xmm2
    544. 

  544. 	movdqa    xmm1,xmm6
    545. 

  545. 	movdqa    xmm2,xmm5
    546. 

  546. 	pmaddwd   xmm6,[GOTOFF(ebx,PW_F130_F054)]	; xmm6=tmp3L
    547. 

  547. 	pmaddwd   xmm5,[GOTOFF(ebx,PW_F130_F054)]	; xmm5=tmp3H
    548. 

  548. 	pmaddwd   xmm1,[GOTOFF(ebx,PW_F054_MF130)]	; xmm1=tmp2L
    549. 

  549. 	pmaddwd   xmm2,[GOTOFF(ebx,PW_F054_MF130)]	; xmm2=tmp2H
    550. 

  550. 

  551. 	movdqa    xmm3,xmm7
    552. 

  552. 	paddw     xmm7,xmm0		; xmm7=in0+in4
    553. 

  553. 	psubw     xmm3,xmm0		; xmm3=in0-in4
    554. 

  554. 

  555. 	pxor      xmm4,xmm4
    556. 

  556. 	pxor      xmm0,xmm0
    557. 

  557. 	punpcklwd xmm4,xmm7		; xmm4=tmp0L
    558. 

  558. 	punpckhwd xmm0,xmm7		; xmm0=tmp0H
    559. 

  559. 	psrad     xmm4,(16-CONST_BITS)	; psrad xmm4,16 & pslld xmm4,CONST_BITS
    560. 

  560. 	psrad     xmm0,(16-CONST_BITS)	; psrad xmm0,16 & pslld xmm0,CONST_BITS
    561. 

  561. 

  562. 	movdqa	xmm7,xmm4
    563. 

  563. 	paddd	xmm4,xmm6		; xmm4=tmp10L
    564. 

  564. 	psubd	xmm7,xmm6		; xmm7=tmp13L
    565. 

  565. 	movdqa	xmm6,xmm0
    566. 

  566. 	paddd	xmm0,xmm5		; xmm0=tmp10H
    567. 

  567. 	psubd	xmm6,xmm5		; xmm6=tmp13H
    568. 

  568. 

  569. 	movdqa	XMMWORD [wk(0)], xmm4	; wk(0)=tmp10L
    570. 

  570. 	movdqa	XMMWORD [wk(1)], xmm0	; wk(1)=tmp10H
    571. 

  571. 	movdqa	XMMWORD [wk(2)], xmm7	; wk(2)=tmp13L
    572. 

  572. 	movdqa	XMMWORD [wk(3)], xmm6	; wk(3)=tmp13H
    573. 

  573. 

  574. 	pxor      xmm5,xmm5
    575. 

  575. 	pxor      xmm4,xmm4
    576. 

  576. 	punpcklwd xmm5,xmm3		; xmm5=tmp1L
    577. 

  577. 	punpckhwd xmm4,xmm3		; xmm4=tmp1H
    578. 

  578. 	psrad     xmm5,(16-CONST_BITS)	; psrad xmm5,16 & pslld xmm5,CONST_BITS
    579. 

  579. 	psrad     xmm4,(16-CONST_BITS)	; psrad xmm4,16 & pslld xmm4,CONST_BITS
    580. 

  580. 

  581. 	movdqa	xmm0,xmm5
    582. 

  582. 	paddd	xmm5,xmm1		; xmm5=tmp11L
    583. 

  583. 	psubd	xmm0,xmm1		; xmm0=tmp12L
    584. 

  584. 	movdqa	xmm7,xmm4
    585. 

  585. 	paddd	xmm4,xmm2		; xmm4=tmp11H
    586. 

  586. 	psubd	xmm7,xmm2		; xmm7=tmp12H
    587. 

  587. 

  588. 	movdqa	XMMWORD [wk(4)], xmm5	; wk(4)=tmp11L
    589. 

  589. 	movdqa	XMMWORD [wk(5)], xmm4	; wk(5)=tmp11H
    590. 

  590. 	movdqa	XMMWORD [wk(6)], xmm0	; wk(6)=tmp12L
    591. 

  591. 	movdqa	XMMWORD [wk(7)], xmm7	; wk(7)=tmp12H
    592. 

  592. 

  593. 	; -- Odd part
    594. 

  594. 

  595. 	movdqa	xmm6, XMMWORD [wk(9)]	; xmm6=col3
    596. 

  596. 	movdqa	xmm3, XMMWORD [wk(8)]	; xmm3=col1
    597. 

  597. 	movdqa	xmm1, XMMWORD [wk(11)]	; xmm1=col7
    598. 

  598. 	movdqa	xmm2, XMMWORD [wk(10)]	; xmm2=col5
    599. 

  599. 

  600. 	movdqa	xmm5,xmm6
    601. 

  601. 	movdqa	xmm4,xmm3
    602. 

  602. 	paddw	xmm5,xmm1		; xmm5=z3
    603. 

  603. 	paddw	xmm4,xmm2		; xmm4=z4
    604. 

  604. 

  605. 	; (Original)
    606. 

  606. 	; z5 = (z3 + z4) * 1.175875602;
    607. 

  607. 	; z3 = z3 * -1.961570560;  z4 = z4 * -0.390180644;
    608. 

  608. 	; z3 += z5;  z4 += z5;
    609. 

  609. 	;
    610. 

  610. 	; (This implementation)
    611. 

  611. 	; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602;
    612. 

  612. 	; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644);
    613. 

  613. 

  614. 	movdqa    xmm0,xmm5
    615. 

  615. 	movdqa    xmm7,xmm5
    616. 

  616. 	punpcklwd xmm0,xmm4
    617. 

  617. 	punpckhwd xmm7,xmm4
    618. 

  618. 	movdqa    xmm5,xmm0
    619. 

  619. 	movdqa    xmm4,xmm7
    620. 

  620. 	pmaddwd   xmm0,[GOTOFF(ebx,PW_MF078_F117)]	; xmm0=z3L
    621. 

  621. 	pmaddwd   xmm7,[GOTOFF(ebx,PW_MF078_F117)]	; xmm7=z3H
    622. 

  622. 	pmaddwd   xmm5,[GOTOFF(ebx,PW_F117_F078)]	; xmm5=z4L
    623. 

  623. 	pmaddwd   xmm4,[GOTOFF(ebx,PW_F117_F078)]	; xmm4=z4H
    624. 

  624. 

  625. 	movdqa	XMMWORD [wk(10)], xmm0	; wk(10)=z3L
    626. 

  626. 	movdqa	XMMWORD [wk(11)], xmm7	; wk(11)=z3H
    627. 

  627. 

  628. 	; (Original)
    629. 

  629. 	; z1 = tmp0 + tmp3;  z2 = tmp1 + tmp2;
    630. 

  630. 	; tmp0 = tmp0 * 0.298631336;  tmp1 = tmp1 * 2.053119869;
    631. 

  631. 	; tmp2 = tmp2 * 3.072711026;  tmp3 = tmp3 * 1.501321110;
    632. 

  632. 	; z1 = z1 * -0.899976223;  z2 = z2 * -2.562915447;
    633. 

  633. 	; tmp0 += z1 + z3;  tmp1 += z2 + z4;
    634. 

  634. 	; tmp2 += z2 + z3;  tmp3 += z1 + z4;
    635. 

  635. 	;
    636. 

  636. 	; (This implementation)
    637. 

  637. 	; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223;
    638. 

  638. 	; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447;
    639. 

  639. 	; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447);
    640. 

  640. 	; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223);
    641. 

  641. 	; tmp0 += z3;  tmp1 += z4;
    642. 

  642. 	; tmp2 += z3;  tmp3 += z4;
    643. 

  643. 

  644. 	movdqa    xmm0,xmm1
    645. 

  645. 	movdqa    xmm7,xmm1
    646. 

  646. 	punpcklwd xmm0,xmm3
    647. 

  647. 	punpckhwd xmm7,xmm3
    648. 

  648. 	movdqa    xmm1,xmm0
    649. 

  649. 	movdqa    xmm3,xmm7
    650. 

  650. 	pmaddwd   xmm0,[GOTOFF(ebx,PW_MF060_MF089)]	; xmm0=tmp0L
    651. 

  651. 	pmaddwd   xmm7,[GOTOFF(ebx,PW_MF060_MF089)]	; xmm7=tmp0H
    652. 

  652. 	pmaddwd   xmm1,[GOTOFF(ebx,PW_MF089_F060)]	; xmm1=tmp3L
    653. 

  653. 	pmaddwd   xmm3,[GOTOFF(ebx,PW_MF089_F060)]	; xmm3=tmp3H
    654. 

  654. 

  655. 	paddd	xmm0, XMMWORD [wk(10)]	; xmm0=tmp0L
    656. 

  656. 	paddd	xmm7, XMMWORD [wk(11)]	; xmm7=tmp0H
    657. 

  657. 	paddd	xmm1,xmm5		; xmm1=tmp3L
    658. 

  658. 	paddd	xmm3,xmm4		; xmm3=tmp3H
    659. 

  659. 

  660. 	movdqa	XMMWORD [wk(8)], xmm0	; wk(8)=tmp0L
    661. 

  661. 	movdqa	XMMWORD [wk(9)], xmm7	; wk(9)=tmp0H
    662. 

  662. 

  663. 	movdqa    xmm0,xmm2
    664. 

  664. 	movdqa    xmm7,xmm2
    665. 

  665. 	punpcklwd xmm0,xmm6
    666. 

  666. 	punpckhwd xmm7,xmm6
    667. 

  667. 	movdqa    xmm2,xmm0
    668. 

  668. 	movdqa    xmm6,xmm7
    669. 

  669. 	pmaddwd   xmm0,[GOTOFF(ebx,PW_MF050_MF256)]	; xmm0=tmp1L
    670. 

  670. 	pmaddwd   xmm7,[GOTOFF(ebx,PW_MF050_MF256)]	; xmm7=tmp1H
    671. 

  671. 	pmaddwd   xmm2,[GOTOFF(ebx,PW_MF256_F050)]	; xmm2=tmp2L
    672. 

  672. 	pmaddwd   xmm6,[GOTOFF(ebx,PW_MF256_F050)]	; xmm6=tmp2H
    673. 

  673. 

  674. 	paddd	xmm0,xmm5		; xmm0=tmp1L
    675. 

  675. 	paddd	xmm7,xmm4		; xmm7=tmp1H
    676. 

  676. 	paddd	xmm2, XMMWORD [wk(10)]	; xmm2=tmp2L
    677. 

  677. 	paddd	xmm6, XMMWORD [wk(11)]	; xmm6=tmp2H
    678. 

  678. 

  679. 	movdqa	XMMWORD [wk(10)], xmm0	; wk(10)=tmp1L
    680. 

  680. 	movdqa	XMMWORD [wk(11)], xmm7	; wk(11)=tmp1H
    681. 

  681. 

  682. 	; -- Final output stage
    683. 

  683. 

  684. 	movdqa	xmm5, XMMWORD [wk(0)]	; xmm5=tmp10L
    685. 

  685. 	movdqa	xmm4, XMMWORD [wk(1)]	; xmm4=tmp10H
    686. 

  686. 

  687. 	movdqa	xmm0,xmm5
    688. 

  688. 	movdqa	xmm7,xmm4
    689. 

  689. 	paddd	xmm5,xmm1		; xmm5=data0L
    690. 

  690. 	paddd	xmm4,xmm3		; xmm4=data0H
    691. 

  691. 	psubd	xmm0,xmm1		; xmm0=data7L
    692. 

  692. 	psubd	xmm7,xmm3		; xmm7=data7H
    693. 

  693. 

  694. 	movdqa	xmm1,[GOTOFF(ebx,PD_DESCALE_P2)]	; xmm1=[PD_DESCALE_P2]
    695. 

  695. 

  696. 	paddd	xmm5,xmm1
    697. 

  697. 	paddd	xmm4,xmm1
    698. 

  698. 	psrad	xmm5,DESCALE_P2
    699. 

  699. 	psrad	xmm4,DESCALE_P2
    700. 

  700. 	paddd	xmm0,xmm1
    701. 

  701. 	paddd	xmm7,xmm1
    702. 

  702. 	psrad	xmm0,DESCALE_P2
    703. 

  703. 	psrad	xmm7,DESCALE_P2
    704. 

  704. 

  705. 	packssdw  xmm5,xmm4		; xmm5=data0=(00 10 20 30 40 50 60 70)
    706. 

  706. 	packssdw  xmm0,xmm7		; xmm0=data7=(07 17 27 37 47 57 67 77)
    707. 

  707. 

  708. 	movdqa	xmm3, XMMWORD [wk(4)]	; xmm3=tmp11L
    709. 

  709. 	movdqa	xmm1, XMMWORD [wk(5)]	; xmm1=tmp11H
    710. 

  710. 

  711. 	movdqa	xmm4,xmm3
    712. 

  712. 	movdqa	xmm7,xmm1
    713. 

  713. 	paddd	xmm3,xmm2		; xmm3=data1L
    714. 

  714. 	paddd	xmm1,xmm6		; xmm1=data1H
    715. 

  715. 	psubd	xmm4,xmm2		; xmm4=data6L
    716. 

  716. 	psubd	xmm7,xmm6		; xmm7=data6H
    717. 

  717. 

  718. 	movdqa	xmm2,[GOTOFF(ebx,PD_DESCALE_P2)]	; xmm2=[PD_DESCALE_P2]
    719. 

  719. 

  720. 	paddd	xmm3,xmm2
    721. 

  721. 	paddd	xmm1,xmm2
    722. 

  722. 	psrad	xmm3,DESCALE_P2
    723. 

  723. 	psrad	xmm1,DESCALE_P2
    724. 

  724. 	paddd	xmm4,xmm2
    725. 

  725. 	paddd	xmm7,xmm2
    726. 

  726. 	psrad	xmm4,DESCALE_P2
    727. 

  727. 	psrad	xmm7,DESCALE_P2
    728. 

  728. 

  729. 	packssdw  xmm3,xmm1		; xmm3=data1=(01 11 21 31 41 51 61 71)
    730. 

  730. 	packssdw  xmm4,xmm7		; xmm4=data6=(06 16 26 36 46 56 66 76)
    731. 

  731. 

  732. 	packsswb  xmm5,xmm4		; xmm5=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
    733. 

  733. 	packsswb  xmm3,xmm0		; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
    734. 

  734. 

  735. 	movdqa	xmm6, XMMWORD [wk(6)]	; xmm6=tmp12L
    736. 

  736. 	movdqa	xmm2, XMMWORD [wk(7)]	; xmm2=tmp12H
    737. 

  737. 	movdqa	xmm1, XMMWORD [wk(10)]	; xmm1=tmp1L
    738. 

  738. 	movdqa	xmm7, XMMWORD [wk(11)]	; xmm7=tmp1H
    739. 

  739. 

  740. 	movdqa	XMMWORD [wk(0)], xmm5	; wk(0)=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
    741. 

  741. 	movdqa	XMMWORD [wk(1)], xmm3	; wk(1)=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
    742. 

  742. 

  743. 	movdqa	xmm4,xmm6
    744. 

  744. 	movdqa	xmm0,xmm2
    745. 

  745. 	paddd	xmm6,xmm1		; xmm6=data2L
    746. 

  746. 	paddd	xmm2,xmm7		; xmm2=data2H
    747. 

  747. 	psubd	xmm4,xmm1		; xmm4=data5L
    748. 

  748. 	psubd	xmm0,xmm7		; xmm0=data5H
    749. 

  749. 

  750. 	movdqa	xmm5,[GOTOFF(ebx,PD_DESCALE_P2)]	; xmm5=[PD_DESCALE_P2]
    751. 

  751. 

  752. 	paddd	xmm6,xmm5
    753. 

  753. 	paddd	xmm2,xmm5
    754. 

  754. 	psrad	xmm6,DESCALE_P2
    755. 

  755. 	psrad	xmm2,DESCALE_P2
    756. 

  756. 	paddd	xmm4,xmm5
    757. 

  757. 	paddd	xmm0,xmm5
    758. 

  758. 	psrad	xmm4,DESCALE_P2
    759. 

  759. 	psrad	xmm0,DESCALE_P2
    760. 

  760. 

  761. 	packssdw  xmm6,xmm2		; xmm6=data2=(02 12 22 32 42 52 62 72)
    762. 

  762. 	packssdw  xmm4,xmm0		; xmm4=data5=(05 15 25 35 45 55 65 75)
    763. 

  763. 

  764. 	movdqa	xmm3, XMMWORD [wk(2)]	; xmm3=tmp13L
    765. 

  765. 	movdqa	xmm1, XMMWORD [wk(3)]	; xmm1=tmp13H
    766. 

  766. 	movdqa	xmm7, XMMWORD [wk(8)]	; xmm7=tmp0L
    767. 

  767. 	movdqa	xmm5, XMMWORD [wk(9)]	; xmm5=tmp0H
    768. 

  768. 

  769. 	movdqa	xmm2,xmm3
    770. 

  770. 	movdqa	xmm0,xmm1
    771. 

  771. 	paddd	xmm3,xmm7		; xmm3=data3L
    772. 

  772. 	paddd	xmm1,xmm5		; xmm1=data3H
    773. 

  773. 	psubd	xmm2,xmm7		; xmm2=data4L
    774. 

  774. 	psubd	xmm0,xmm5		; xmm0=data4H
    775. 

  775. 

  776. 	movdqa	xmm7,[GOTOFF(ebx,PD_DESCALE_P2)]	; xmm7=[PD_DESCALE_P2]
    777. 

  777. 

  778. 	paddd	xmm3,xmm7
    779. 

  779. 	paddd	xmm1,xmm7
    780. 

  780. 	psrad	xmm3,DESCALE_P2
    781. 

  781. 	psrad	xmm1,DESCALE_P2
    782. 

  782. 	paddd	xmm2,xmm7
    783. 

  783. 	paddd	xmm0,xmm7
    784. 

  784. 	psrad	xmm2,DESCALE_P2
    785. 

  785. 	psrad	xmm0,DESCALE_P2
    786. 

  786. 

  787. 	movdqa    xmm5,[GOTOFF(ebx,PB_CENTERJSAMP)]	; xmm5=[PB_CENTERJSAMP]
    788. 

  788. 

  789. 	packssdw  xmm3,xmm1		; xmm3=data3=(03 13 23 33 43 53 63 73)
    790. 

  790. 	packssdw  xmm2,xmm0		; xmm2=data4=(04 14 24 34 44 54 64 74)
    791. 

  791. 

  792. 	movdqa    xmm7, XMMWORD [wk(0)]	; xmm7=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
    793. 

  793. 	movdqa    xmm1, XMMWORD [wk(1)]	; xmm1=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
    794. 

  794. 

  795. 	packsswb  xmm6,xmm2		; xmm6=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74)
    796. 

  796. 	packsswb  xmm3,xmm4		; xmm3=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75)
    797. 

  797. 

  798. 	paddb     xmm7,xmm5
    799. 

  799. 	paddb     xmm1,xmm5
    800. 

  800. 	paddb     xmm6,xmm5
    801. 

  801. 	paddb     xmm3,xmm5
    802. 

  802. 

  803. 	movdqa    xmm0,xmm7	; transpose coefficients(phase 1)
    804. 

  804. 	punpcklbw xmm7,xmm1	; xmm7=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71)
    805. 

  805. 	punpckhbw xmm0,xmm1	; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77)
    806. 

  806. 	movdqa    xmm2,xmm6	; transpose coefficients(phase 1)
    807. 

  807. 	punpcklbw xmm6,xmm3	; xmm6=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73)
    808. 

  808. 	punpckhbw xmm2,xmm3	; xmm2=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75)
    809. 

  809. 

  810. 	movdqa    xmm4,xmm7	; transpose coefficients(phase 2)
    811. 

  811. 	punpcklwd xmm7,xmm6	; xmm7=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
    812. 

  812. 	punpckhwd xmm4,xmm6	; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73)
    813. 

  813. 	movdqa    xmm5,xmm2	; transpose coefficients(phase 2)
    814. 

  814. 	punpcklwd xmm2,xmm0	; xmm2=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
    815. 

  815. 	punpckhwd xmm5,xmm0	; xmm5=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77)
    816. 

  816. 

  817. 	movdqa    xmm1,xmm7	; transpose coefficients(phase 3)
    818. 

  818. 	punpckldq xmm7,xmm2	; xmm7=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
    819. 

  819. 	punpckhdq xmm1,xmm2	; xmm1=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
    820. 

  820. 	movdqa    xmm3,xmm4	; transpose coefficients(phase 3)
    821. 

  821. 	punpckldq xmm4,xmm5	; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57)
    822. 

  822. 	punpckhdq xmm3,xmm5	; xmm3=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77)
    823. 

  823. 

  824. 	pshufd	xmm6,xmm7,0x4E	; xmm6=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
    825. 

  825. 	pshufd	xmm0,xmm1,0x4E	; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
    826. 

  826. 	pshufd	xmm2,xmm4,0x4E	; xmm2=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47)
    827. 

  827. 	pshufd	xmm5,xmm3,0x4E	; xmm5=(70 71 72 73 74 75 76 77 60 61 62 63 64 65 66 67)
    828. 

  828. 

  829. 	mov	edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW]
    830. 

  830. 	mov	esi, JSAMPROW [edi+2*SIZEOF_JSAMPROW]
    831. 

  831. 	movq	XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm7
    832. 

  832. 	movq	XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm1
    833. 

  833. 	mov	edx, JSAMPROW [edi+4*SIZEOF_JSAMPROW]
    834. 

  834. 	mov	esi, JSAMPROW [edi+6*SIZEOF_JSAMPROW]
    835. 

  835. 	movq	XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm4
    836. 

  836. 	movq	XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm3
    837. 

  837. 

  838. 	mov	edx, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
    839. 

  839. 	mov	esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW]
    840. 

  840. 	movq	XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm6
    841. 

  841. 	movq	XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm0
    842. 

  842. 	mov	edx, JSAMPROW [edi+5*SIZEOF_JSAMPROW]
    843. 

  843. 	mov	esi, JSAMPROW [edi+7*SIZEOF_JSAMPROW]
    844. 

  844. 	movq	XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm2
    845. 

  845. 	movq	XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm5
    846. 

  846. 

  847. 	pop	edi
    848. 

  848. 	pop	esi
    849. 

  849. ;	pop	edx		; need not be preserved
    850. 

  850. ;	pop	ecx		; unused
    851. 

  851. 	poppic	ebx
    852. 

  852. 	mov	esp,ebp		; esp <- aligned ebp
    853. 

  853. 	pop	esp		; esp <- original ebp
    854. 

  854. 	pop	ebp
    855. 

  855. 	ret
    856. 

  856. 

  857. ; For some reason, the OS X linker does not honor the request to align the
    858. 

  858. ; segment unless we do this.
    859. 

  859. 	align	16
    860.