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FFmpeg/libavcodec/arm/dsputil_arm_s.S

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  1. @

  2. @ ARMv4 optimized DSP utils

  3. @ Copyright (c) 2004 AGAWA Koji <i (AT) atty (DOT) jp>

  4. @

  5. @ This file is part of FFmpeg.

  6. @

  7. @ FFmpeg is free software; you can redistribute it and/or

  8. @ modify it under the terms of the GNU Lesser General Public

  9. @ License as published by the Free Software Foundation; either

  10. @ version 2.1 of the License, or (at your option) any later version.

  11. @

  12. @ FFmpeg is distributed in the hope that it will be useful,

  13. @ but WITHOUT ANY WARRANTY; without even the implied warranty of

  14. @ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15. @ Lesser General Public License for more details.

  16. @

  17. @ You should have received a copy of the GNU Lesser General Public

  18. @ License along with FFmpeg; if not, write to the Free Software

  19. @ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  20. @

  21. 

  22. #include "config.h"

  23. #include "asm.S"

  24. 

  25.         preserve8

  26. 

  27. #if !HAVE_PLD

  28. .macro pld reg

  29. .endm

  30. #endif

  31. 

  32. #if HAVE_ARMV5TE

  33. function ff_prefetch_arm, export=1

  34.         subs    r2, r2, #1

  35.         pld     [r0]

  36.         add     r0, r0, r1

  37.         bne     ff_prefetch_arm

  38.         bx      lr

  39.         .endfunc

  40. #endif

  41. 

  42. .macro  ADJ_ALIGN_QUADWORD_D shift, Rd0, Rd1, Rd2, Rd3, Rn0, Rn1, Rn2, Rn3, Rn4

  43.         mov \Rd0, \Rn0, lsr #(\shift * 8)

  44.         mov \Rd1, \Rn1, lsr #(\shift * 8)

  45.         mov \Rd2, \Rn2, lsr #(\shift * 8)

  46.         mov \Rd3, \Rn3, lsr #(\shift * 8)

  47.         orr \Rd0, \Rd0, \Rn1, lsl #(32 - \shift * 8)

  48.         orr \Rd1, \Rd1, \Rn2, lsl #(32 - \shift * 8)

  49.         orr \Rd2, \Rd2, \Rn3, lsl #(32 - \shift * 8)

  50.         orr \Rd3, \Rd3, \Rn4, lsl #(32 - \shift * 8)

  51. .endm

  52. .macro  ADJ_ALIGN_DOUBLEWORD shift, R0, R1, R2

  53.         mov \R0, \R0, lsr #(\shift * 8)

  54.         orr \R0, \R0, \R1, lsl #(32 - \shift * 8)

  55.         mov \R1, \R1, lsr #(\shift * 8)

  56.         orr \R1, \R1, \R2, lsl #(32 - \shift * 8)

  57. .endm

  58. .macro  ADJ_ALIGN_DOUBLEWORD_D shift, Rdst0, Rdst1, Rsrc0, Rsrc1, Rsrc2

  59.         mov \Rdst0, \Rsrc0, lsr #(\shift * 8)

  60.         mov \Rdst1, \Rsrc1, lsr #(\shift * 8)

  61.         orr \Rdst0, \Rdst0, \Rsrc1, lsl #(32 - (\shift * 8))

  62.         orr \Rdst1, \Rdst1, \Rsrc2, lsl #(32 - (\shift * 8))

  63. .endm

  64. 

  65. .macro  RND_AVG32 Rd0, Rd1, Rn0, Rn1, Rm0, Rm1, Rmask

  66.         @ Rd = (Rn | Rm) - (((Rn ^ Rm) & ~0x01010101) >> 1)

  67.         @ Rmask = 0xFEFEFEFE

  68.         @ Rn = destroy

  69.         eor \Rd0, \Rn0, \Rm0

  70.         eor \Rd1, \Rn1, \Rm1

  71.         orr \Rn0, \Rn0, \Rm0

  72.         orr \Rn1, \Rn1, \Rm1

  73.         and \Rd0, \Rd0, \Rmask

  74.         and \Rd1, \Rd1, \Rmask

  75.         sub \Rd0, \Rn0, \Rd0, lsr #1

  76.         sub \Rd1, \Rn1, \Rd1, lsr #1

  77. .endm

  78. 

  79. .macro  NO_RND_AVG32 Rd0, Rd1, Rn0, Rn1, Rm0, Rm1, Rmask

  80.         @ Rd = (Rn & Rm) - (((Rn ^ Rm) & ~0x01010101) >> 1)

  81.         @ Rmask = 0xFEFEFEFE

  82.         @ Rn = destroy

  83.         eor \Rd0, \Rn0, \Rm0

  84.         eor \Rd1, \Rn1, \Rm1

  85.         and \Rn0, \Rn0, \Rm0

  86.         and \Rn1, \Rn1, \Rm1

  87.         and \Rd0, \Rd0, \Rmask

  88.         and \Rd1, \Rd1, \Rmask

  89.         add \Rd0, \Rn0, \Rd0, lsr #1

  90.         add \Rd1, \Rn1, \Rd1, lsr #1

  91. .endm

  92. 

  93. @ ----------------------------------------------------------------

  94.         .align 8

  95. function put_pixels16_arm, export=1

  96.         @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)

  97.         @ block = word aligned, pixles = unaligned

  98.         pld [r1]

  99.         stmfd sp!, {r4-r11, lr} @ R14 is also called LR

  100.         adr r5, 5f

  101.         ands r4, r1, #3

  102.         bic r1, r1, #3

  103.         add r5, r5, r4, lsl #2

  104.         ldrne pc, [r5]

  105. 1:

  106.         ldmia r1, {r4-r7}

  107.         add r1, r1, r2

  108.         stmia r0, {r4-r7}

  109.         pld [r1]

  110.         subs r3, r3, #1

  111.         add r0, r0, r2

  112.         bne 1b

  113.         ldmfd sp!, {r4-r11, pc}

  114.         .align 8

  115. 2:

  116.         ldmia r1, {r4-r8}

  117.         add r1, r1, r2

  118.         ADJ_ALIGN_QUADWORD_D 1, r9, r10, r11, r12, r4, r5, r6, r7, r8

  119.         pld [r1]

  120.         subs r3, r3, #1

  121.         stmia r0, {r9-r12}

  122.         add r0, r0, r2

  123.         bne 2b

  124.         ldmfd sp!, {r4-r11, pc}

  125.         .align 8

  126. 3:

  127.         ldmia r1, {r4-r8}

  128.         add r1, r1, r2

  129.         ADJ_ALIGN_QUADWORD_D 2, r9, r10, r11, r12, r4, r5, r6, r7, r8

  130.         pld [r1]

  131.         subs r3, r3, #1

  132.         stmia r0, {r9-r12}

  133.         add r0, r0, r2

  134.         bne 3b

  135.         ldmfd sp!, {r4-r11, pc}

  136.         .align 8

  137. 4:

  138.         ldmia r1, {r4-r8}

  139.         add r1, r1, r2

  140.         ADJ_ALIGN_QUADWORD_D 3, r9, r10, r11, r12, r4, r5, r6, r7, r8

  141.         pld [r1]

  142.         subs r3, r3, #1

  143.         stmia r0, {r9-r12}

  144.         add r0, r0, r2

  145.         bne 4b

  146.         ldmfd sp!, {r4-r11,pc}

  147.         .align 8

  148. 5:

  149.         .word 1b

  150.         .word 2b

  151.         .word 3b

  152.         .word 4b

  153.         .endfunc

  154. 

  155. @ ----------------------------------------------------------------

  156.         .align 8

  157. function put_pixels8_arm, export=1

  158.         @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)

  159.         @ block = word aligned, pixles = unaligned

  160.         pld [r1]

  161.         stmfd sp!, {r4-r5,lr} @ R14 is also called LR

  162.         adr r5, 5f

  163.         ands r4, r1, #3

  164.         bic r1, r1, #3

  165.         add r5, r5, r4, lsl #2

  166.         ldrne pc, [r5]

  167. 1:

  168.         ldmia r1, {r4-r5}

  169.         add r1, r1, r2

  170.         subs r3, r3, #1

  171.         pld [r1]

  172.         stmia r0, {r4-r5}

  173.         add r0, r0, r2

  174.         bne 1b

  175.         ldmfd sp!, {r4-r5,pc}

  176.         .align 8

  177. 2:

  178.         ldmia r1, {r4-r5, r12}

  179.         add r1, r1, r2

  180.         ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r12

  181.         pld [r1]

  182.         subs r3, r3, #1

  183.         stmia r0, {r4-r5}

  184.         add r0, r0, r2

  185.         bne 2b

  186.         ldmfd sp!, {r4-r5,pc}

  187.         .align 8

  188. 3:

  189.         ldmia r1, {r4-r5, r12}

  190.         add r1, r1, r2

  191.         ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r12

  192.         pld [r1]

  193.         subs r3, r3, #1

  194.         stmia r0, {r4-r5}

  195.         add r0, r0, r2

  196.         bne 3b

  197.         ldmfd sp!, {r4-r5,pc}

  198.         .align 8

  199. 4:

  200.         ldmia r1, {r4-r5, r12}

  201.         add r1, r1, r2

  202.         ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r12

  203.         pld [r1]

  204.         subs r3, r3, #1

  205.         stmia r0, {r4-r5}

  206.         add r0, r0, r2

  207.         bne 4b

  208.         ldmfd sp!, {r4-r5,pc}

  209.         .align 8

  210. 5:

  211.         .word 1b

  212.         .word 2b

  213.         .word 3b

  214.         .word 4b

  215.         .endfunc

  216. 

  217. @ ----------------------------------------------------------------

  218.         .align 8

  219. function put_pixels8_x2_arm, export=1

  220.         @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)

  221.         @ block = word aligned, pixles = unaligned

  222.         pld [r1]

  223.         stmfd sp!, {r4-r10,lr} @ R14 is also called LR

  224.         adr r5, 5f

  225.         ands r4, r1, #3

  226.         ldr r12, [r5]

  227.         add r5, r5, r4, lsl #2

  228.         bic r1, r1, #3

  229.         ldrne pc, [r5]

  230. 1:

  231.         ldmia r1, {r4-r5, r10}

  232.         add r1, r1, r2

  233.         ADJ_ALIGN_DOUBLEWORD_D 1, r6, r7, r4, r5, r10

  234.         pld [r1]

  235.         RND_AVG32 r8, r9, r4, r5, r6, r7, r12

  236.         subs r3, r3, #1

  237.         stmia r0, {r8-r9}

  238.         add r0, r0, r2

  239.         bne 1b

  240.         ldmfd sp!, {r4-r10,pc}

  241.         .align 8

  242. 2:

  243.         ldmia r1, {r4-r5, r10}

  244.         add r1, r1, r2

  245.         ADJ_ALIGN_DOUBLEWORD_D 1, r6, r7, r4, r5, r10

  246.         ADJ_ALIGN_DOUBLEWORD_D 2, r8, r9, r4, r5, r10

  247.         pld [r1]

  248.         RND_AVG32 r4, r5, r6, r7, r8, r9, r12

  249.         subs r3, r3, #1

  250.         stmia r0, {r4-r5}

  251.         add r0, r0, r2

  252.         bne 2b

  253.         ldmfd sp!, {r4-r10,pc}

  254.         .align 8

  255. 3:

  256.         ldmia r1, {r4-r5, r10}

  257.         add r1, r1, r2

  258.         ADJ_ALIGN_DOUBLEWORD_D 2, r6, r7, r4, r5, r10

  259.         ADJ_ALIGN_DOUBLEWORD_D 3, r8, r9, r4, r5, r10

  260.         pld [r1]

  261.         RND_AVG32 r4, r5, r6, r7, r8, r9, r12

  262.         subs r3, r3, #1

  263.         stmia r0, {r4-r5}

  264.         add r0, r0, r2

  265.         bne 3b

  266.         ldmfd sp!, {r4-r10,pc}

  267.         .align 8

  268. 4:

  269.         ldmia r1, {r4-r5, r10}

  270.         add r1, r1, r2

  271.         ADJ_ALIGN_DOUBLEWORD_D 3, r6, r7, r4, r5, r10

  272.         pld [r1]

  273.         RND_AVG32 r8, r9, r6, r7, r5, r10, r12

  274.         subs r3, r3, #1

  275.         stmia r0, {r8-r9}

  276.         add r0, r0, r2

  277.         bne 4b

  278.         ldmfd sp!, {r4-r10,pc} @@ update PC with LR content.

  279.         .align 8

  280. 5:

  281.         .word 0xFEFEFEFE

  282.         .word 2b

  283.         .word 3b

  284.         .word 4b

  285.         .endfunc

  286. 

  287.         .align 8

  288. function put_no_rnd_pixels8_x2_arm, export=1

  289.         @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)

  290.         @ block = word aligned, pixles = unaligned

  291.         pld [r1]

  292.         stmfd sp!, {r4-r10,lr} @ R14 is also called LR

  293.         adr r5, 5f

  294.         ands r4, r1, #3

  295.         ldr r12, [r5]

  296.         add r5, r5, r4, lsl #2

  297.         bic r1, r1, #3

  298.         ldrne pc, [r5]

  299. 1:

  300.         ldmia r1, {r4-r5, r10}

  301.         add r1, r1, r2

  302.         ADJ_ALIGN_DOUBLEWORD_D 1, r6, r7, r4, r5, r10

  303.         pld [r1]

  304.         NO_RND_AVG32 r8, r9, r4, r5, r6, r7, r12

  305.         subs r3, r3, #1

  306.         stmia r0, {r8-r9}

  307.         add r0, r0, r2

  308.         bne 1b

  309.         ldmfd sp!, {r4-r10,pc}

  310.         .align 8

  311. 2:

  312.         ldmia r1, {r4-r5, r10}

  313.         add r1, r1, r2

  314.         ADJ_ALIGN_DOUBLEWORD_D 1, r6, r7, r4, r5, r10

  315.         ADJ_ALIGN_DOUBLEWORD_D 2, r8, r9, r4, r5, r10

  316.         pld [r1]

  317.         NO_RND_AVG32 r4, r5, r6, r7, r8, r9, r12

  318.         subs r3, r3, #1

  319.         stmia r0, {r4-r5}

  320.         add r0, r0, r2

  321.         bne 2b

  322.         ldmfd sp!, {r4-r10,pc}

  323.         .align 8

  324. 3:

  325.         ldmia r1, {r4-r5, r10}

  326.         add r1, r1, r2

  327.         ADJ_ALIGN_DOUBLEWORD_D 2, r6, r7, r4, r5, r10

  328.         ADJ_ALIGN_DOUBLEWORD_D 3, r8, r9, r4, r5, r10

  329.         pld [r1]

  330.         NO_RND_AVG32 r4, r5, r6, r7, r8, r9, r12

  331.         subs r3, r3, #1

  332.         stmia r0, {r4-r5}

  333.         add r0, r0, r2

  334.         bne 3b

  335.         ldmfd sp!, {r4-r10,pc}

  336.         .align 8

  337. 4:

  338.         ldmia r1, {r4-r5, r10}

  339.         add r1, r1, r2

  340.         ADJ_ALIGN_DOUBLEWORD_D 3, r6, r7, r4, r5, r10

  341.         pld [r1]

  342.         NO_RND_AVG32 r8, r9, r6, r7, r5, r10, r12

  343.         subs r3, r3, #1

  344.         stmia r0, {r8-r9}

  345.         add r0, r0, r2

  346.         bne 4b

  347.         ldmfd sp!, {r4-r10,pc} @@ update PC with LR content.

  348.         .align 8

  349. 5:

  350.         .word 0xFEFEFEFE

  351.         .word 2b

  352.         .word 3b

  353.         .word 4b

  354.         .endfunc

  355. 

  356. 

  357. @ ----------------------------------------------------------------

  358.         .align 8

  359. function put_pixels8_y2_arm, export=1

  360.         @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)

  361.         @ block = word aligned, pixles = unaligned

  362.         pld [r1]

  363.         stmfd sp!, {r4-r11,lr} @ R14 is also called LR

  364.         adr r5, 5f

  365.         ands r4, r1, #3

  366.         mov r3, r3, lsr #1

  367.         ldr r12, [r5]

  368.         add r5, r5, r4, lsl #2

  369.         bic r1, r1, #3

  370.         ldrne pc, [r5]

  371. 1:

  372.         ldmia r1, {r4-r5}

  373.         add r1, r1, r2

  374. 6:      ldmia r1, {r6-r7}

  375.         add r1, r1, r2

  376.         pld [r1]

  377.         RND_AVG32 r8, r9, r4, r5, r6, r7, r12

  378.         ldmia r1, {r4-r5}

  379.         add r1, r1, r2

  380.         stmia r0, {r8-r9}

  381.         add r0, r0, r2

  382.         pld [r1]

  383.         RND_AVG32 r8, r9, r6, r7, r4, r5, r12

  384.         subs r3, r3, #1

  385.         stmia r0, {r8-r9}

  386.         add r0, r0, r2

  387.         bne 6b

  388.         ldmfd sp!, {r4-r11,pc}

  389.         .align 8

  390. 2:

  391.         ldmia r1, {r4-r6}

  392.         add r1, r1, r2

  393.         pld [r1]

  394.         ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r6

  395. 6:      ldmia r1, {r7-r9}

  396.         add r1, r1, r2

  397.         pld [r1]

  398.         ADJ_ALIGN_DOUBLEWORD 1, r7, r8, r9

  399.         RND_AVG32 r10, r11, r4, r5, r7, r8, r12

  400.         stmia r0, {r10-r11}

  401.         add r0, r0, r2

  402.         ldmia r1, {r4-r6}

  403.         add r1, r1, r2

  404.         pld [r1]

  405.         ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r6

  406.         subs r3, r3, #1

  407.         RND_AVG32 r10, r11, r7, r8, r4, r5, r12

  408.         stmia r0, {r10-r11}

  409.         add r0, r0, r2

  410.         bne 6b

  411.         ldmfd sp!, {r4-r11,pc}

  412.         .align 8

  413. 3:

  414.         ldmia r1, {r4-r6}

  415.         add r1, r1, r2

  416.         pld [r1]

  417.         ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r6

  418. 6:      ldmia r1, {r7-r9}

  419.         add r1, r1, r2

  420.         pld [r1]

  421.         ADJ_ALIGN_DOUBLEWORD 2, r7, r8, r9

  422.         RND_AVG32 r10, r11, r4, r5, r7, r8, r12

  423.         stmia r0, {r10-r11}

  424.         add r0, r0, r2

  425.         ldmia r1, {r4-r6}

  426.         add r1, r1, r2

  427.         pld [r1]

  428.         ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r6

  429.         subs r3, r3, #1

  430.         RND_AVG32 r10, r11, r7, r8, r4, r5, r12

  431.         stmia r0, {r10-r11}

  432.         add r0, r0, r2

  433.         bne 6b

  434.         ldmfd sp!, {r4-r11,pc}

  435.         .align 8

  436. 4:

  437.         ldmia r1, {r4-r6}

  438.         add r1, r1, r2

  439.         pld [r1]

  440.         ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r6

  441. 6:      ldmia r1, {r7-r9}

  442.         add r1, r1, r2

  443.         pld [r1]

  444.         ADJ_ALIGN_DOUBLEWORD 3, r7, r8, r9

  445.         RND_AVG32 r10, r11, r4, r5, r7, r8, r12

  446.         stmia r0, {r10-r11}

  447.         add r0, r0, r2

  448.         ldmia r1, {r4-r6}

  449.         add r1, r1, r2

  450.         pld [r1]

  451.         ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r6

  452.         subs r3, r3, #1

  453.         RND_AVG32 r10, r11, r7, r8, r4, r5, r12

  454.         stmia r0, {r10-r11}

  455.         add r0, r0, r2

  456.         bne 6b

  457.         ldmfd sp!, {r4-r11,pc}

  458. 

  459.         .align 8

  460. 5:

  461.         .word 0xFEFEFEFE

  462.         .word 2b

  463.         .word 3b

  464.         .word 4b

  465.         .endfunc

  466. 

  467.         .align 8

  468. function put_no_rnd_pixels8_y2_arm, export=1

  469.         @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)

  470.         @ block = word aligned, pixles = unaligned

  471.         pld [r1]

  472.         stmfd sp!, {r4-r11,lr} @ R14 is also called LR

  473.         adr r5, 5f

  474.         ands r4, r1, #3

  475.         mov r3, r3, lsr #1

  476.         ldr r12, [r5]

  477.         add r5, r5, r4, lsl #2

  478.         bic r1, r1, #3

  479.         ldrne pc, [r5]

  480. 1:

  481.         ldmia r1, {r4-r5}

  482.         add r1, r1, r2

  483. 6:      ldmia r1, {r6-r7}

  484.         add r1, r1, r2

  485.         pld [r1]

  486.         NO_RND_AVG32 r8, r9, r4, r5, r6, r7, r12

  487.         ldmia r1, {r4-r5}

  488.         add r1, r1, r2

  489.         stmia r0, {r8-r9}

  490.         add r0, r0, r2

  491.         pld [r1]

  492.         NO_RND_AVG32 r8, r9, r6, r7, r4, r5, r12

  493.         subs r3, r3, #1

  494.         stmia r0, {r8-r9}

  495.         add r0, r0, r2

  496.         bne 6b

  497.         ldmfd sp!, {r4-r11,pc}

  498.         .align 8

  499. 2:

  500.         ldmia r1, {r4-r6}

  501.         add r1, r1, r2

  502.         pld [r1]

  503.         ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r6

  504. 6:      ldmia r1, {r7-r9}

  505.         add r1, r1, r2

  506.         pld [r1]

  507.         ADJ_ALIGN_DOUBLEWORD 1, r7, r8, r9

  508.         NO_RND_AVG32 r10, r11, r4, r5, r7, r8, r12

  509.         stmia r0, {r10-r11}

  510.         add r0, r0, r2

  511.         ldmia r1, {r4-r6}

  512.         add r1, r1, r2

  513.         pld [r1]

  514.         ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r6

  515.         subs r3, r3, #1

  516.         NO_RND_AVG32 r10, r11, r7, r8, r4, r5, r12

  517.         stmia r0, {r10-r11}

  518.         add r0, r0, r2

  519.         bne 6b

  520.         ldmfd sp!, {r4-r11,pc}

  521.         .align 8

  522. 3:

  523.         ldmia r1, {r4-r6}

  524.         add r1, r1, r2

  525.         pld [r1]

  526.         ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r6

  527. 6:      ldmia r1, {r7-r9}

  528.         add r1, r1, r2

  529.         pld [r1]

  530.         ADJ_ALIGN_DOUBLEWORD 2, r7, r8, r9

  531.         NO_RND_AVG32 r10, r11, r4, r5, r7, r8, r12

  532.         stmia r0, {r10-r11}

  533.         add r0, r0, r2

  534.         ldmia r1, {r4-r6}

  535.         add r1, r1, r2

  536.         pld [r1]

  537.         ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r6

  538.         subs r3, r3, #1

  539.         NO_RND_AVG32 r10, r11, r7, r8, r4, r5, r12

  540.         stmia r0, {r10-r11}

  541.         add r0, r0, r2

  542.         bne 6b

  543.         ldmfd sp!, {r4-r11,pc}

  544.         .align 8

  545. 4:

  546.         ldmia r1, {r4-r6}

  547.         add r1, r1, r2

  548.         pld [r1]

  549.         ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r6

  550. 6:      ldmia r1, {r7-r9}

  551.         add r1, r1, r2

  552.         pld [r1]

  553.         ADJ_ALIGN_DOUBLEWORD 3, r7, r8, r9

  554.         NO_RND_AVG32 r10, r11, r4, r5, r7, r8, r12

  555.         stmia r0, {r10-r11}

  556.         add r0, r0, r2

  557.         ldmia r1, {r4-r6}

  558.         add r1, r1, r2

  559.         pld [r1]

  560.         ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r6

  561.         subs r3, r3, #1

  562.         NO_RND_AVG32 r10, r11, r7, r8, r4, r5, r12

  563.         stmia r0, {r10-r11}

  564.         add r0, r0, r2

  565.         bne 6b

  566.         ldmfd sp!, {r4-r11,pc}

  567.         .align 8

  568. 5:

  569.         .word 0xFEFEFEFE

  570.         .word 2b

  571.         .word 3b

  572.         .word 4b

  573.         .endfunc

  574. 

  575. @ ----------------------------------------------------------------

  576. .macro  RND_XY2_IT align

  577.         @ l1=  (a & 0x03030303) + (b & 0x03030303) ?(+ 0x02020202)

  578.         @ h1= ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2)

  579. .if \align == 0

  580.         ldmia r1, {r6-r8}

  581. .elseif \align == 3

  582.         ldmia r1, {r5-r7}

  583. .else

  584.         ldmia r1, {r8-r10}

  585. .endif

  586.         add r1, r1, r2

  587.         pld [r1]

  588. .if \align == 0

  589.         ADJ_ALIGN_DOUBLEWORD_D 1, r4, r5, r6, r7, r8

  590. .elseif \align == 1

  591.         ADJ_ALIGN_DOUBLEWORD_D 1, r4, r5, r8, r9, r10

  592.         ADJ_ALIGN_DOUBLEWORD_D 2, r6, r7, r8, r9, r10

  593. .elseif \align == 2

  594.         ADJ_ALIGN_DOUBLEWORD_D 2, r4, r5, r8, r9, r10

  595.         ADJ_ALIGN_DOUBLEWORD_D 3, r6, r7, r8, r9, r10

  596. .elseif \align == 3

  597.         ADJ_ALIGN_DOUBLEWORD_D 3, r4, r5, r5, r6, r7

  598. .endif

  599.         ldr r14, [r12, #0]      @ 0x03030303

  600.         tst r3, #1

  601.         and r8, r4, r14

  602.         and r9, r5, r14

  603.         and r10, r6, r14

  604.         and r11, r7, r14

  605.         ldreq r14, [r12, #16]   @ 0x02020202/0x01010101

  606.         add r8, r8, r10

  607.         add r9, r9, r11

  608.         addeq r8, r8, r14

  609.         addeq r9, r9, r14

  610.         ldr r14, [r12, #20]     @ 0xFCFCFCFC >> 2

  611.         and r4, r14, r4, lsr #2

  612.         and r5, r14, r5, lsr #2

  613.         and r6, r14, r6, lsr #2

  614.         and r7, r14, r7, lsr #2

  615.         add r10, r4, r6

  616.         add r11, r5, r7

  617.         subs r3, r3, #1

  618. .endm

  619. 

  620. .macro RND_XY2_EXPAND align

  621.         RND_XY2_IT \align

  622. 6:      stmfd sp!, {r8-r11}

  623.         RND_XY2_IT \align

  624.         ldmfd sp!, {r4-r7}

  625.         add r4, r4, r8

  626.         add r5, r5, r9

  627.         add r6, r6, r10

  628.         add r7, r7, r11

  629.         ldr r14, [r12, #24]     @ 0x0F0F0F0F

  630.         and r4, r14, r4, lsr #2

  631.         and r5, r14, r5, lsr #2

  632.         add r4, r4, r6

  633.         add r5, r5, r7

  634.         stmia r0, {r4-r5}

  635.         add r0, r0, r2

  636.         bge 6b

  637.         ldmfd sp!, {r4-r11,pc}

  638. .endm

  639. 

  640.         .align 8

  641. function put_pixels8_xy2_arm, export=1

  642.         @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)

  643.         @ block = word aligned, pixles = unaligned

  644.         pld [r1]

  645.         stmfd sp!, {r4-r11,lr} @ R14 is also called LR

  646.         adrl r12, 5f

  647.         ands r4, r1, #3

  648.         add r5, r12, r4, lsl #2

  649.         bic r1, r1, #3

  650.         ldrne pc, [r5]

  651. 1:

  652.         RND_XY2_EXPAND 0

  653. 

  654.         .align 8

  655. 2:

  656.         RND_XY2_EXPAND 1

  657. 

  658.         .align 8

  659. 3:

  660.         RND_XY2_EXPAND 2

  661. 

  662.         .align 8

  663. 4:

  664.         RND_XY2_EXPAND 3

  665. 

  666. 5:

  667.         .word 0x03030303

  668.         .word 2b

  669.         .word 3b

  670.         .word 4b

  671.         .word 0x02020202

  672.         .word 0xFCFCFCFC >> 2

  673.         .word 0x0F0F0F0F

  674.         .endfunc

  675. 

  676.         .align 8

  677. function put_no_rnd_pixels8_xy2_arm, export=1

  678.         @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)

  679.         @ block = word aligned, pixles = unaligned

  680.         pld [r1]

  681.         stmfd sp!, {r4-r11,lr} @ R14 is also called LR

  682.         adrl r12, 5f

  683.         ands r4, r1, #3

  684.         add r5, r12, r4, lsl #2

  685.         bic r1, r1, #3

  686.         ldrne pc, [r5]

  687. 1:

  688.         RND_XY2_EXPAND 0

  689. 

  690.         .align 8

  691. 2:

  692.         RND_XY2_EXPAND 1

  693. 

  694.         .align 8

  695. 3:

  696.         RND_XY2_EXPAND 2

  697. 

  698.         .align 8

  699. 4:

  700.         RND_XY2_EXPAND 3

  701. 

  702. 5:

  703.         .word 0x03030303

  704.         .word 2b

  705.         .word 3b

  706.         .word 4b

  707.         .word 0x01010101

  708.         .word 0xFCFCFCFC >> 2

  709.         .word 0x0F0F0F0F

  710.         .endfunc

  711. 

  712. @ void ff_add_pixels_clamped_ARM(int16_t *block, uint8_t *dest, int stride)

  713. function ff_add_pixels_clamped_ARM, export=1

  714.         push            {r4-r10}

  715.         mov             r10, #8

  716. 1:

  717.         ldr             r4,  [r1]               /* load dest */

  718.         /* block[0] and block[1]*/

  719.         ldrsh           r5,  [r0]

  720.         ldrsh           r7,  [r0, #2]

  721.         and             r6,  r4,  #0xFF

  722.         and             r8,  r4,  #0xFF00

  723.         add             r6,  r5,  r6

  724.         add             r8,  r7,  r8,  lsr #8

  725.         mvn             r5,  r5

  726.         mvn             r7,  r7

  727.         tst             r6,  #0x100

  728.         movne           r6,  r5,  lsr #24

  729.         tst             r8,  #0x100

  730.         movne           r8,  r7,  lsr #24

  731.         mov             r9,  r6

  732.         ldrsh           r5,  [r0, #4]           /* moved form [A] */

  733.         orr             r9,  r9,  r8, lsl #8

  734.         /* block[2] and block[3] */

  735.         /* [A] */

  736.         ldrsh           r7,  [r0, #6]

  737.         and             r6,  r4,  #0xFF0000

  738.         and             r8,  r4,  #0xFF000000

  739.         add             r6,  r5,  r6, lsr #16

  740.         add             r8,  r7,  r8, lsr #24

  741.         mvn             r5,  r5

  742.         mvn             r7,  r7

  743.         tst             r6,  #0x100

  744.         movne           r6,  r5,  lsr #24

  745.         tst             r8,  #0x100

  746.         movne           r8,  r7,  lsr #24

  747.         orr             r9,  r9,  r6, lsl #16

  748.         ldr             r4,  [r1, #4]           /* moved form [B] */

  749.         orr             r9,  r9,  r8, lsl #24

  750.         /* store dest */

  751.         ldrsh           r5,  [r0, #8]           /* moved form [C] */

  752.         str             r9,  [r1]

  753. 

  754.         /* load dest */

  755.         /* [B] */

  756.         /* block[4] and block[5] */

  757.         /* [C] */

  758.         ldrsh           r7,  [r0, #10]

  759.         and             r6,  r4,  #0xFF

  760.         and             r8,  r4,  #0xFF00

  761.         add             r6,  r5,  r6

  762.         add             r8,  r7,  r8, lsr #8

  763.         mvn             r5,  r5

  764.         mvn             r7,  r7

  765.         tst             r6,  #0x100

  766.         movne           r6,  r5,  lsr #24

  767.         tst             r8,  #0x100

  768.         movne           r8,  r7,  lsr #24

  769.         mov             r9,  r6

  770.         ldrsh           r5,  [r0, #12]          /* moved from [D] */

  771.         orr             r9,  r9,  r8, lsl #8

  772.         /* block[6] and block[7] */

  773.         /* [D] */

  774.         ldrsh           r7,  [r0, #14]

  775.         and             r6,  r4,  #0xFF0000

  776.         and             r8,  r4,  #0xFF000000

  777.         add             r6,  r5,  r6, lsr #16

  778.         add             r8,  r7,  r8, lsr #24

  779.         mvn             r5,  r5

  780.         mvn             r7,  r7

  781.         tst             r6,  #0x100

  782.         movne           r6,  r5,  lsr #24

  783.         tst             r8,  #0x100

  784.         movne           r8,  r7,  lsr #24

  785.         orr             r9,  r9,  r6, lsl #16

  786.         add             r0,  r0,  #16           /* moved from [E] */

  787.         orr             r9,  r9,  r8, lsl #24

  788.         subs            r10, r10, #1            /* moved from [F] */

  789.         /* store dest */

  790.         str             r9,  [r1, #4]

  791. 

  792.         /* [E] */

  793.         /* [F] */

  794.         add             r1,  r1,  r2

  795.         bne             1b

  796. 

  797.         pop             {r4-r10}

  798.         bx              lr

  799.         .endfunc