/xbmc/visualizations/Goom/goom2k4-0/src/ppc_drawings.s

http://github.com/xbmc/xbmc · Assembly · 381 lines · 260 code · 70 blank · 51 comment · 0 complexity · b2b0d67aac740f1ebe45d0ff8eb2d575 MD5 · raw file 

    

  1. ; PowerPC optimized drawing methods for Goom
    2. 

  2. ; Š 2003 Guillaume Borios
    3. 

  3. ; This Source Code is released under the terms of the General Public License
    4. 

  4. 

  5. ; Change log :
    6. 

  6. ; 30 May 2003 : File creation
    7. 

  7. 

  8. ; Section definition : We use a read only code section for the whole file
    9. 

  9. .section __TEXT,__text,regular,pure_instructions
    10. 

  10. 

  11. 

  12. ; --------------------------------------------------------------------------------------
    13. 

  13. ; Single 32b pixel drawing macros
    14. 

  14. ; Usage :
    15. 

  15. ; 	DRAWMETHOD_XXXX_MACRO *pixelIN, *pixelOUT, COLOR, WR1, WR2, WR3, WR4
    16. 

  16. ;	Only the work registers (WR) can be touched by the macros
    17. 

  17. ;
    18. 

  18. ; Available methods :
    19. 

  19. ;	DRAWMETHOD_DFLT_MACRO : Default drawing method (Actually OVRW)
    20. 

  20. ;	DRAWMETHOD_PLUS_MACRO : RVB Saturated per channel addition (SLOWEST)
    21. 

  21. ;	DRAWMETHOD_HALF_MACRO : 50% Transparency color drawing
    22. 

  22. ;	DRAWMETHOD_OVRW_MACRO : Direct COLOR drawing (FASTEST)
    23. 

  23. ;	DRAWMETHOD_B_OR_MACRO : Bitwise OR
    24. 

  24. ;	DRAWMETHOD_BAND_MACRO : Bitwise AND
    25. 

  25. ;	DRAWMETHOD_BXOR_MACRO : Bitwise XOR
    26. 

  26. ;	DRAWMETHOD_BNOT_MACRO : Bitwise NOT
    27. 

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

  28. 

  29. .macro DRAWMETHOD_OVRW_MACRO
    30. 

  30.     stw		$2,0($1)	;; *$1 <- $2
    31. 

  31. .endmacro
    32. 

  32. 

  33. .macro DRAWMETHOD_B_OR_MACRO
    34. 

  34.     lwz		$3,0($0)	;; $3 <- *$0
    35. 

  35.     or		$3,$3,$2	;; $3 <- $3 | $2
    36. 

  36.     stw		$3,0($1)	;; *$1 <- $3
    37. 

  37. .endmacro
    38. 

  38. 

  39. .macro DRAWMETHOD_BAND_MACRO
    40. 

  40.     lwz		$3,0($0)	;; $3 <- *$0
    41. 

  41.     and		$3,$3,$2	;; $3 <- $3 & $2
    42. 

  42.     stw		$3,0($1)	;; *$1 <- $3
    43. 

  43. .endmacro
    44. 

  44. 

  45. .macro DRAWMETHOD_BXOR_MACRO
    46. 

  46.     lwz		$3,0($0)	;; $3 <- *$0
    47. 

  47.     xor		$3,$3,$2	;; $3 <- $3 ^ $2
    48. 

  48.     stw		$3,0($1)	;; *$1 <- $3
    49. 

  49. .endmacro
    50. 

  50. 

  51. .macro DRAWMETHOD_BNOT_MACRO
    52. 

  52.     lwz		$3,0($0)	;; $3 <- *$0
    53. 

  53.     nand	$3,$3,$3	;; $3 <- ~$3
    54. 

  54.     stw		$3,0($1)	;; *$1 <- $3
    55. 

  55. .endmacro
    56. 

  56. 

  57. .macro DRAWMETHOD_PLUS_MACRO
    58. 

  58.     lwz		$4,0($0)	;; $4 <- *$0
    59. 

  59.     andi.	$3,$4,0xFF00	;; $3 <- $4 & 0x0000FF00
    60. 

  60.     andi.	$5,$2,0xFF00	;; $5 <- $2 & 0x0000FF00
    61. 

  61.     add		$3,$3,$5	;; $3 <- $3 + $5
    62. 

  62.     rlwinm	$5,$3,15,0,0	;; $5 <- 0 | ($3[15] << 15)
    63. 

  63.     srawi	$5,$5,23	;; $5 <- $5 >> 23 (algebraic for sign extension)
    64. 

  64.     or		$3,$3,$5	;; $3 <- $3 | $5
    65. 

  65.     lis		$5,0xFF		;; $5 <- 0x00FF00FF
    66. 

  66.     addi	$5,$5,0xFF
    67. 

  67.     and		$4,$4,$5	;; $4 <- $4 & $5
    68. 

  68.     and		$6,$2,$5	;; $6 <- $2 & $5
    69. 

  69.     add		$4,$4,$6	;; $4 <- $4 + $6
    70. 

  70.     rlwinm	$6,$4,7,0,0	;; $6 <- 0 | ($4[7] << 7)
    71. 

  71.     srawi	$6,$6,15	;; $6 <- $6 >> 15 (algebraic for sign extension)
    72. 

  72.     rlwinm	$5,$4,23,0,0	;; $5 <- 0 | ($4[23] << 23)
    73. 

  73.     srawi	$5,$5,31	;; $5 <- $5 >> 31 (algebraic for sign extension)
    74. 

  74.     rlwimi	$6,$5,0,24,31	;; $6[24..31] <- $5[24..31]
    75. 

  75.     or		$4,$4,$6	;; $4 <- $4 | $6
    76. 

  76.     rlwimi	$4,$3,0,16,23	;; $4[16..23] <- $3[16..23]
    77. 

  77.     stw		$4,0($1)	;; *$1 <- $4
    78. 

  78. .endmacro
    79. 

  79. 

  80. .macro	DRAWMETHOD_HALF_MACRO
    81. 

  81.     lwz		$4,0($0)	;; $4 <- *$0
    82. 

  82.     andi.	$3,$4,0xFF00	;; $3 <- $4 & 0x0000FF00
    83. 

  83.     andi.	$5,$2,0xFF00	;; $5 <- $2 & 0x0000FF00
    84. 

  84.     add		$3,$3,$5	;; $3 <- $3 + $5
    85. 

  85.     lis		$5,0xFF		;; $5 <- 0x00FF00FF
    86. 

  86.     addi	$5,$5,0xFF
    87. 

  87.     and		$4,$4,$5	;; $4 <- $4 & $5
    88. 

  88.     and		$5,$2,$5	;; $5 <- $2 & $5
    89. 

  89.     add		$4,$4,$5	;; $4 <- $4 + $5
    90. 

  90.     srwi	$4,$4,1		;; $4 <- $4 >> 1
    91. 

  91.     rlwimi	$4,$3,31,16,23	;; $4[16..23] <- $3[15..22]
    92. 

  92.     stw		$4,0($1)	;; *$1 <- $4
    93. 

  93. .endmacro
    94. 

  94. 

  95. .macro DRAWMETHOD_DFLT_MACRO
    96. 

  96.     DRAWMETHOD_PLUS_MACRO
    97. 

  97. .endmacro
    98. 

  98. 

  99. ; --------------------------------------------------------------------------------------
    100. 

  100. 

  101. 

  102. 

  103. ; **************************************************************************************
    104. 

  104. ; void DRAWMETHOD_PLUS_PPC(unsigned int * buf, unsigned int _col);
    105. 

  105. ; void DRAWMETHOD_PLUS_2_PPC(unsigned * in, unsigned int * out, unsigned int _col);
    106. 

  106. ; **************************************************************************************
    107. 

  107. .globl _DRAWMETHOD_PLUS_2_PPC
    108. 

  108. .align 3
    109. 

  109. _DRAWMETHOD_PLUS_2_PPC:
    110. 

  110.     DRAWMETHOD_PLUS_MACRO	r3,r4,r5,r6,r7,r8,r9
    111. 

  111.     blr				;; return
    112. 

  112. 

  113. .globl _DRAWMETHOD_PLUS_PPC
    114. 

  114. .align 3
    115. 

  115. _DRAWMETHOD_PLUS_PPC:
    116. 

  116.     DRAWMETHOD_PLUS_MACRO	r3,r3,r4,r5,r6,r7,r9
    117. 

  117.     blr				;; return
    118. 

  118. 

  119. 

  120. ; **************************************************************************************
    121. 

  121. ; void DRAWMETHOD_HALF_PPC(unsigned int * buf, unsigned int _col);
    122. 

  122. ; void DRAWMETHOD_HALF_2_PPC(unsigned * in, unsigned int * out, unsigned int _col);
    123. 

  123. ; **************************************************************************************
    124. 

  124. .globl _DRAWMETHOD_HALF_2_PPC
    125. 

  125. .align 3
    126. 

  126. _DRAWMETHOD_HALF_2_PPC:
    127. 

  127.     DRAWMETHOD_HALF_MACRO	r3,r4,r5,r6,r7,r8
    128. 

  128.     blr				;; return
    129. 

  129. 

  130. .globl _DRAWMETHOD_HALF_PPC
    131. 

  131. .align 3
    132. 

  132. _DRAWMETHOD_HALF_PPC:
    133. 

  133.     DRAWMETHOD_HALF_MACRO	r3,r3,r4,r5,r6,r7
    134. 

  134.     blr				;; return
    135. 

  135. 

  136. 

  137. ; **************************************************************************************
    138. 

  138. ; void DRAW_LINE_PPC(unsigned int *data, int x1, int y1, int x2, int y2, unsigned int col,
    139. 

  139. ; 			unsigned int screenx, unsigned int screeny)
    140. 

  140. ; **************************************************************************************
    141. 

  141. .globl _DRAW_LINE_PPC
    142. 

  142. .align 3
    143. 

  143. _DRAW_LINE_PPC:
    144. 

  144.     ;; NOT IMPLEMENTED YET
    145. 

  145.     blr				;; return
    146. 

  146. 

  147. 

  148. ; **************************************************************************************
    149. 

  149. ; void _ppc_brightness(Pixel * src, Pixel * dest, unsigned int size, unsigned int coeff)
    150. 

  150. ; **************************************************************************************
    151. 

  151. 

  152. 

  153. .const
    154. 

  154. .align 4
    155. 

  155. vectorZERO:
    156. 

  156.     .long 0,0,0,0
    157. 

  157.     .long 0x10101000, 0x10101001, 0x10101002, 0x10101003
    158. 

  158.     .long 0x10101004, 0x10101005, 0x10101006, 0x10101007
    159. 

  159.     .long 0x10101008, 0x10101009, 0x1010100A, 0x1010100B
    160. 

  160.     .long 0x1010100C, 0x1010100D, 0x1010100E, 0x1010100F
    161. 

  161. 

  162. 

  163. .section __TEXT,__text,regular,pure_instructions
    164. 

  164. 

  165. .globl _ppc_brightness_G4
    166. 

  166. .align 3
    167. 

  167. _ppc_brightness_G4:
    168. 

  168. 

  169. 

  170. ;; PowerPC Altivec code
    171. 

  171.     srwi    r5,r5,2
    172. 

  172.     mtctr   r5
    173. 

  173. 

  174. ;;vrsave
    175. 

  175.     mfspr   r11,256
    176. 

  176.     lis     r12,0xCFFC
    177. 

  177.     mtspr   256,r12
    178. 

  178. 

  179.         mflr r0
    180. 

  180.         bcl 20,31,"L00000000001$pb"
    181. 

  181. "L00000000001$pb":
    182. 

  182.         mflr r10
    183. 

  183.         mtlr r0
    184. 

  184. 

  185.     addis   r9,r10,ha16(vectorZERO-"L00000000001$pb")
    186. 

  186.     addi    r9,r9,lo16(vectorZERO-"L00000000001$pb")
    187. 

  187.     
    188. 

  188.     vxor    v0,v0,v0 ;; V0 = NULL vector
    189. 

  189. 

  190.     addi    r9,r9,16
    191. 

  191.     lvx     v10,0,r9
    192. 

  192.     addi    r9,r9,16
    193. 

  193.     lvx     v11,0,r9
    194. 

  194.     addi    r9,r9,16
    195. 

  195.     lvx     v12,0,r9
    196. 

  196.     addi    r9,r9,16
    197. 

  197.     lvx     v13,0,r9
    198. 

  198. 

  199.     addis   r9,r10,ha16(vectortmpwork-"L00000000001$pb")
    200. 

  200.     addi    r9,r9,lo16(vectortmpwork-"L00000000001$pb")
    201. 

  201.     stw     r6,0(r9)
    202. 

  202.     li      r6,8
    203. 

  203.     stw     r6,4(r9)
    204. 

  204.     lvx     v9,0,r9
    205. 

  205.     li      r9,128
    206. 

  206.     vspltw  v8,v9,0
    207. 

  207.     vspltw  v9,v9,1
    208. 

  208. 

  209. ;; elt counter
    210. 

  210.     li      r9,0
    211. 

  211.     lis     r7,0x0F01
    212. 

  212.     b L7
    213. 

  213. .align 4
    214. 

  214. L7:
    215. 

  215.     lvx     v1,r9,r3
    216. 

  216. 

  217.     vperm   v4,v1,v0,v10
    218. 

  218.     ;*********************
    219. 

  219.      add r10,r9,r3
    220. 

  220.     ;*********************
    221. 

  221.     vperm   v5,v1,v0,v11
    222. 

  222.     vperm   v6,v1,v0,v12
    223. 

  223.     vperm   v7,v1,v0,v13
    224. 

  224. 

  225.     vmulouh  v4,v4,v8
    226. 

  226.     ;*********************
    227. 

  227.      dst     r10,r7,3
    228. 

  228.     ;*********************
    229. 

  229.     vmulouh  v5,v5,v8
    230. 

  230.     vmulouh  v6,v6,v8
    231. 

  231.     vmulouh  v7,v7,v8
    232. 

  232.     vsrw     v4,v4,v9
    233. 

  233.     vsrw     v5,v5,v9
    234. 

  234.     vsrw     v6,v6,v9
    235. 

  235.     vsrw     v7,v7,v9 
    236. 

  236.     
    237. 

  237.     vpkuwus v4,v4,v5
    238. 

  238.     vpkuwus v6,v6,v7
    239. 

  239.     vpkuhus v1,v4,v6
    240. 

  240. 

  241.     stvx    v1,r9,r4
    242. 

  242.     addi    r9,r9,16
    243. 

  243. 

  244.     bdnz L7
    245. 

  245. 

  246.     mtspr   256,r11
    247. 

  247.     blr
    248. 

  248. 

  249. 

  250. .globl _ppc_brightness_G5
    251. 

  251. .align 3
    252. 

  252. _ppc_brightness_G5:
    253. 

  253. 

  254. ;; PowerPC Altivec G5 code
    255. 

  255.     srwi    r5,r5,2
    256. 

  256.     mtctr   r5
    257. 

  257. 

  258. ;;vrsave
    259. 

  259.     mfspr   r11,256
    260. 

  260.     lis     r12,0xCFFC
    261. 

  261.     mtspr   256,r12
    262. 

  262. 

  263.         mflr r0
    264. 

  264.         bcl 20,31,"L00000000002$pb"
    265. 

  265. "L00000000002$pb":
    266. 

  266.         mflr r10
    267. 

  267.         mtlr r0
    268. 

  268. 

  269.     addis   r9,r10,ha16(vectorZERO-"L00000000002$pb")
    270. 

  270.     addi    r9,r9,lo16(vectorZERO-"L00000000002$pb")
    271. 

  271.     
    272. 

  272.     vxor    v0,v0,v0 ;; V0 = NULL vector
    273. 

  273. 

  274.     addi    r9,r9,16
    275. 

  275.     lvx     v10,0,r9
    276. 

  276.     addi    r9,r9,16
    277. 

  277.     lvx     v11,0,r9
    278. 

  278.     addi    r9,r9,16
    279. 

  279.     lvx     v12,0,r9
    280. 

  280.     addi    r9,r9,16
    281. 

  281.     lvx     v13,0,r9
    282. 

  282. 

  283.     addis   r9,r10,ha16(vectortmpwork-"L00000000002$pb")
    284. 

  284.     addi    r9,r9,lo16(vectortmpwork-"L00000000002$pb")
    285. 

  285.     stw     r6,0(r9)
    286. 

  286.     li      r6,8
    287. 

  287.     stw     r6,4(r9)
    288. 

  288.     lvx     v9,0,r9
    289. 

  289.     li      r9,128
    290. 

  290.     vspltw  v8,v9,0
    291. 

  291.     vspltw  v9,v9,1
    292. 

  292. 

  293. ;; elt counter
    294. 

  294.     li      r9,0
    295. 

  295.     lis     r7,0x0F01
    296. 

  296.     b L6
    297. 

  297. .align 4
    298. 

  298. L6:
    299. 

  299.     lvx     v1,r9,r3
    300. 

  300. 

  301.     vperm   v4,v1,v0,v10
    302. 

  302.     ;*********************
    303. 

  303.     add r10,r9,r3
    304. 

  304.     ;*********************
    305. 

  305.     vperm   v5,v1,v0,v11
    306. 

  306.     vperm   v6,v1,v0,v12
    307. 

  307.     vperm   v7,v1,v0,v13
    308. 

  308. 

  309.     vmulouh  v4,v4,v8
    310. 

  310.     vmulouh  v5,v5,v8
    311. 

  311.     vmulouh  v6,v6,v8
    312. 

  312.     vmulouh  v7,v7,v8
    313. 

  313.     vsrw     v4,v4,v9
    314. 

  314.     vsrw     v5,v5,v9
    315. 

  315.     vsrw     v6,v6,v9
    316. 

  316.     vsrw     v7,v7,v9 
    317. 

  317.     
    318. 

  318.     vpkuwus v4,v4,v5
    319. 

  319.     vpkuwus v6,v6,v7
    320. 

  320.     vpkuhus v1,v4,v6
    321. 

  321. 

  322.     stvx    v1,r9,r4
    323. 

  323.     addi    r9,r9,16
    324. 

  324. 

  325.     bdnz L6
    326. 

  326. 

  327.     mtspr   256,r11
    328. 

  328.     blr
    329. 

  329. 

  330. 

  331. .globl _ppc_brightness_generic
    332. 

  332. .align 3
    333. 

  333. _ppc_brightness_generic:
    334. 

  334.     lis   r12,0x00FF
    335. 

  335.     ori   r12,r12,0x00FF
    336. 

  336.     subi  r3,r3,4
    337. 

  337.     subi  r4,r4,4
    338. 

  338.     mtctr r5
    339. 

  339.     b L1
    340. 

  340. .align 4
    341. 

  341. L1:
    342. 

  342.     lwzu  r7,4(r3)
    343. 

  343. 

  344.     rlwinm  r8,r7,16,24,31
    345. 

  345.     rlwinm  r9,r7,24,24,31
    346. 

  346.     mullw   r8,r8,r6
    347. 

  347.     rlwinm  r10,r7,0,24,31
    348. 

  348.     mullw   r9,r9,r6
    349. 

  349.     srwi    r8,r8,8
    350. 

  350.     mullw   r10,r10,r6
    351. 

  351.     srwi    r9,r9,8
    352. 

  352. 

  353.     rlwinm. r11,r8,0,0,23
    354. 

  354.     beq     L2
    355. 

  355.     li      r8,0xFF
    356. 

  356. L2:
    357. 

  357.     srwi    r10,r10,8
    358. 

  358.     rlwinm. r11,r9,0,0,23
    359. 

  359.     beq     L3
    360. 

  360.     li      r9,0xFF
    361. 

  361. L3:
    362. 

  362.     rlwinm  r7,r8,16,8,15
    363. 

  363.     rlwinm. r11,r10,0,0,23
    364. 

  364.     beq     L4
    365. 

  365.     li      r10,0xFF
    366. 

  366. L4:
    367. 

  367.     rlwimi  r7,r9,8,16,23
    368. 

  368.     rlwimi  r7,r10,0,24,31
    369. 

  369. 

  370.     stwu    r7,4(r4)
    371. 

  371.     bdnz L1
    372. 

  372. 

  373.     blr
    374. 

  374. 

  375. 

  376. 

  377. .static_data
    378. 

  378. .align 4
    379. 

  379. vectortmpwork:
    380. 

  380.     .long 0,0,0,0
    381.