| a1f34081 |
1 | /* |
| 2 | * (C) GraÅžvydas "notaz" Ignotas, 2011 |
| 3 | * |
| 4 | * This work is licensed under the terms of any of these licenses |
| 5 | * (at your option): |
| 6 | * - GNU GPL, version 2 or later. |
| 7 | * - GNU LGPL, version 2.1 or later. |
| 8 | * See the COPYING file in the top-level directory. |
| 9 | */ |
| 10 | |
| 11 | .text |
| 12 | .align 2 |
| 13 | |
| 14 | @ void *dst, const void *src, int count, uint abits |
| 15 | .macro do_argb bgr2rgb |
| 16 | vdup.i8 d0, r3 |
| 17 | 0: |
| 18 | vld4.8 {d4-d7}, [r1]! |
| 19 | .if \bgr2rgb |
| 20 | vswp d4, d6 @ BGR->RGB |
| 21 | .endif |
| 22 | vmov.i8 d7, d0 |
| 23 | subs r2, r2, #8 |
| 24 | blt do_argb_finish |
| 25 | vst4.8 {d4-d7}, [r0]! |
| 26 | bxeq lr |
| 27 | nop |
| 28 | b 0b |
| 29 | .endm |
| 30 | |
| 31 | @ void *dst, const void *src, int count |
| 32 | .macro do_argb_alpha bgr2rgb |
| 33 | mov r3, #0xff |
| 34 | vdup.i16 q12, r3 |
| 35 | 0: |
| 36 | vld4.8 {d4-d7}, [r1]! |
| 37 | vld4.8 {d0-d3}, [r0] |
| 38 | .if \bgr2rgb |
| 39 | vswp d4, d6 @ BGR->RGB |
| 40 | .endif |
| 41 | vmovl.u8 q11, d7 |
| 42 | @ d = (((s-d)*a+255)>>8)+d |
| 43 | vsubl.u8 q8, d4, d0 |
| 44 | vsubl.u8 q9, d5, d1 |
| 45 | vsubl.u8 q10,d6, d2 |
| 46 | vmul.s16 q8, q8, q11 |
| 47 | vmul.s16 q9, q9, q11 |
| 48 | vmul.s16 q10,q10,q11 |
| 49 | vaddhn.i16 d4, q8, q12 |
| 50 | vaddhn.i16 d5, q9, q12 |
| 51 | vaddhn.i16 d6, q10,q12 |
| 52 | vadd.i8 q2, q0 |
| 53 | vadd.i8 d6, d2 |
| 54 | vmov.i8 d7, d3 |
| 55 | subs r2, r2, #8 |
| 56 | blt do_argb_finish |
| 57 | vst4.8 {d4-d7}, [r0]! |
| 58 | bxeq lr |
| 59 | nop |
| 60 | b 0b |
| 61 | .endm |
| 62 | |
| 63 | do_argb_finish: |
| 64 | add r2, r2, #8 |
| 65 | vzip.8 d4, d5 @ RRR..|GGG.. -> RGRG.. |
| 66 | vzip.8 d6, d7 @ BBB..|000.. -> B0B0.. |
| 67 | vzip.16 q2, q3 |
| 68 | |
| 69 | vst1.32 d4[0], [r0]! |
| 70 | cmp r2, #1 |
| 71 | bxle lr |
| 72 | vst1.32 d4[1], [r0]! |
| 73 | cmp r2, #2 |
| 74 | bxle lr |
| 75 | vst1.32 d5[0], [r0]! |
| 76 | cmp r2, #3 |
| 77 | bxle lr |
| 78 | vst1.32 d5[1], [r0]! |
| 79 | cmp r2, #4 |
| 80 | bxle lr |
| 81 | vst1.32 d6[0], [r0]! |
| 82 | cmp r2, #5 |
| 83 | bxle lr |
| 84 | vst1.32 d6[1], [r0]! |
| 85 | cmp r2, #6 |
| 86 | bxle lr |
| 87 | vst1.32 d7[0], [r0]! |
| 88 | bx lr |
| 89 | |
| 90 | |
| 91 | .global neon_ARGBtoXRGB |
| 92 | neon_ARGBtoXRGB: |
| 93 | do_argb 0 |
| 94 | |
| 95 | .global neon_ABGRtoXRGB |
| 96 | neon_ABGRtoXRGB: |
| 97 | do_argb 1 |
| 98 | |
| 99 | .global neon_ARGBtoXRGBalpha |
| 100 | neon_ARGBtoXRGBalpha: |
| 101 | do_argb_alpha 0 |
| 102 | |
| 103 | .global neon_ABGRtoXRGBalpha |
| 104 | neon_ABGRtoXRGBalpha: |
| 105 | do_argb_alpha 1 |
| 106 | |
| 107 | @ vim:filetype=armasm |
notaz.gp2x.de / sdl_omap.git / blame