notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| 3719602c PC |
1 | /* Copyright (C) 2010-2020 The RetroArch team |
| 2 | * | |
| 3 | * --------------------------------------------------------------------------------------- | |
| 4 | * The following license statement only applies to this file (sinc_resampler_neon.S). | |
| 5 | * --------------------------------------------------------------------------------------- | |
| 6 | * | |
| 7 | * Permission is hereby granted, free of charge, | |
| 8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
| 9 | * to deal in the Software without restriction, including without limitation the rights to | |
| 10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
| 11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
| 12 | * | |
| 13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
| 14 | * | |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, | |
| 16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
| 19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| 21 | */ | |
| 22 | ||
| 23 | #if defined(__ARM_NEON__) && defined(HAVE_ARM_NEON_ASM_OPTIMIZATIONS) | |
| 24 | ||
| 25 | #ifndef __MACH__ | |
| 26 | .arm | |
| 27 | #endif | |
| 28 | .align 4 | |
| 29 | .globl process_sinc_neon_asm | |
| 30 | #ifndef __MACH__ | |
| 31 | .type process_sinc_neon_asm, %function | |
| 32 | #endif | |
| 33 | .globl _process_sinc_neon_asm | |
| 34 | #ifndef __MACH__ | |
| 35 | .type _process_sinc_neon_asm, %function | |
| 36 | #endif | |
| 37 | # void process_sinc_neon(float *out, const float *left, const float *right, const float *coeff, unsigned taps) | |
| 38 | # Assumes taps is >= 8, and a multiple of 8. | |
| 39 | process_sinc_neon_asm: | |
| 40 | _process_sinc_neon_asm: | |
| 41 | ||
| 42 | push {r4, lr} | |
| 43 | vmov.f32 q0, #0.0 | |
| 44 | vmov.f32 q8, #0.0 | |
| 45 | ||
| 46 | # Taps argument (r4) goes on stack in armeabi. | |
| 47 | ldr r4, [sp, #8] | |
| 48 | ||
| 49 | 1: | |
| 50 | # Left | |
| 51 | vld1.f32 {q2-q3}, [r1]! | |
| 52 | # Right | |
| 53 | vld1.f32 {q10-q11}, [r2]! | |
| 54 | # Coeff | |
| 55 | vld1.f32 {q12-q13}, [r3, :128]! | |
| 56 | ||
| 57 | # Left / Right | |
| 58 | vmla.f32 q0, q2, q12 | |
| 59 | vmla.f32 q8, q10, q12 | |
| 60 | vmla.f32 q0, q3, q13 | |
| 61 | vmla.f32 q8, q11, q13 | |
| 62 | ||
| 63 | subs r4, r4, #8 | |
| 64 | bne 1b | |
| 65 | ||
| 66 | # Add everything together | |
| 67 | vadd.f32 d0, d0, d1 | |
| 68 | vadd.f32 d16, d16, d17 | |
| 69 | vpadd.f32 d0, d0, d16 | |
| 70 | vst1.f32 d0, [r0] | |
| 71 | ||
| 72 | pop {r4, pc} | |
| 73 | ||
| 74 | #endif |