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/* | ||
* Copyright (c) Radzivon Bartoshyk. All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without modification, | ||
* are permitted provided that the following conditions are met: | ||
* | ||
* 1. Redistributions of source code must retain the above copyright notice, this | ||
* list of conditions and the following disclaimer. | ||
* | ||
* 2. Redistributions in binary form must reproduce the above copyright notice, | ||
* this list of conditions and the following disclaimer in the documentation | ||
* and/or other materials provided with the distribution. | ||
* | ||
* 3. Neither the name of the copyright holder nor the names of its | ||
* contributors may be used to endorse or promote products derived from | ||
* this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
use std::arch::aarch64::*; | ||
use std::arch::asm; | ||
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/// Provides basic support for f16 | ||
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#[derive(Debug, Clone, Copy)] | ||
#[allow(non_camel_case_types)] | ||
#[allow(dead_code)] | ||
pub struct x_float16x4_t(pub(crate) uint16x4_t); | ||
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#[derive(Debug, Clone, Copy)] | ||
#[allow(non_camel_case_types)] | ||
#[allow(dead_code)] | ||
pub struct x_float16x8_t(pub(crate) uint16x8_t); | ||
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#[inline] | ||
pub unsafe fn xvld_f16(ptr: *const half::f16) -> x_float16x4_t { | ||
let store: uint16x4_t = vld1_u16(std::mem::transmute(ptr)); | ||
std::mem::transmute(store) | ||
} | ||
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#[inline] | ||
pub unsafe fn xreinterpret_u16_f16(x: x_float16x4_t) -> uint16x4_t { | ||
std::mem::transmute(x) | ||
} | ||
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#[inline] | ||
pub unsafe fn xreinterpret_f16_u16(x: uint16x4_t) -> x_float16x4_t { | ||
std::mem::transmute(x) | ||
} | ||
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// #[inline] | ||
// pub unsafe fn xreinterpretq_f16_u16(x: uint16x8_t) -> x_float16x8_t { | ||
// std::mem::transmute(x) | ||
// } | ||
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#[inline] | ||
pub unsafe fn xvcvt_f32_f16(x: x_float16x4_t) -> float32x4_t { | ||
let src: uint16x4_t = xreinterpret_u16_f16(x); | ||
let dst: float32x4_t; | ||
asm!( | ||
"fcvtl {0:v}.4s, {1:v}.4h", | ||
out(vreg) dst, | ||
in(vreg) src, | ||
options(pure, nomem, nostack)); | ||
dst | ||
} | ||
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#[inline] | ||
pub(super) unsafe fn xvcvt_f16_f32(v: float32x4_t) -> x_float16x4_t { | ||
let result: uint16x4_t; | ||
asm!( | ||
"fcvtn {0:v}.4h, {1:v}.4s", | ||
out(vreg) result, | ||
in(vreg) v, | ||
options(pure, nomem, nostack)); | ||
xreinterpret_f16_u16(result) | ||
} | ||
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#[inline] | ||
pub unsafe fn xvst_f16(ptr: *const half::f16, x: x_float16x4_t) { | ||
vst1_u16(std::mem::transmute(ptr), xreinterpret_u16_f16(x)) | ||
} |
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// Copyright (c) Radzivon Bartoshyk. All rights reserved. | ||
// | ||
// Redistribution and use in source and binary forms, with or without modification, | ||
// are permitted provided that the following conditions are met: | ||
// | ||
// 1. Redistributions of source code must retain the above copyright notice, this | ||
// list of conditions and the following disclaimer. | ||
// | ||
// 2. Redistributions in binary form must reproduce the above copyright notice, | ||
// this list of conditions and the following disclaimer in the documentation | ||
// and/or other materials provided with the distribution. | ||
// | ||
// 3. Neither the name of the copyright holder nor the names of its | ||
// contributors may be used to endorse or promote products derived from | ||
// this software without specific prior written permission. | ||
// | ||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
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use std::arch::aarch64::*; | ||
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use half::f16; | ||
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use crate::neon::{load_f32_f16, store_f32_f16}; | ||
use crate::unsafe_slice::UnsafeSlice; | ||
use crate::{clamp_edge, reflect_101, reflect_index, EdgeMode}; | ||
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pub fn fast_gaussian_vertical_pass_neon_f16< | ||
T, | ||
const CHANNELS_COUNT: usize, | ||
const EDGE_MODE: usize, | ||
>( | ||
undef_bytes: &UnsafeSlice<T>, | ||
stride: u32, | ||
width: u32, | ||
height: u32, | ||
radius: u32, | ||
start: u32, | ||
end: u32, | ||
) { | ||
let edge_mode: EdgeMode = EDGE_MODE.into(); | ||
let bytes: &UnsafeSlice<'_, f16> = unsafe { std::mem::transmute(undef_bytes) }; | ||
let mut buffer: [[f32; 4]; 1024] = [[0f32; 4]; 1024]; | ||
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let height_wide = height as i64; | ||
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let radius_64 = radius as i64; | ||
let weight = 1.0f32 / ((radius as f32) * (radius as f32)); | ||
let f_weight = unsafe { vdupq_n_f32(weight) }; | ||
for x in start..std::cmp::min(width, end) { | ||
let mut diffs: float32x4_t = unsafe { vdupq_n_f32(0f32) }; | ||
let mut summs: float32x4_t = unsafe { vdupq_n_f32(0f32) }; | ||
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let start_y = 0 - 2 * radius as i64; | ||
for y in start_y..height_wide { | ||
let current_y = (y * (stride as i64)) as usize; | ||
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if y >= 0 { | ||
let current_px = (std::cmp::max(x, 0)) as usize * CHANNELS_COUNT; | ||
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let prepared_px = unsafe { vmulq_f32(summs, f_weight) }; | ||
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unsafe { | ||
let dst_ptr = bytes.slice.as_ptr().add(current_y + current_px) as *mut f16; | ||
store_f32_f16::<CHANNELS_COUNT>(dst_ptr, prepared_px); | ||
} | ||
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let arr_index = ((y - radius_64) & 1023) as usize; | ||
let d_arr_index = (y & 1023) as usize; | ||
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let d_buf_ptr = unsafe { buffer.as_mut_ptr().add(d_arr_index) as *mut f32 }; | ||
let mut d_stored = unsafe { vld1q_f32(d_buf_ptr) }; | ||
d_stored = unsafe { vmulq_n_f32(d_stored, 2f32) }; | ||
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let buf_ptr = unsafe { buffer.as_mut_ptr().add(arr_index) as *mut f32 }; | ||
let a_stored = unsafe { vld1q_f32(buf_ptr) }; | ||
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diffs = unsafe { vaddq_f32(diffs, vsubq_f32(a_stored, d_stored)) }; | ||
} else if y + radius_64 >= 0 { | ||
let arr_index = (y & 1023) as usize; | ||
let buf_ptr = unsafe { buffer.as_mut_ptr().add(arr_index) as *mut f32 }; | ||
let mut stored = unsafe { vld1q_f32(buf_ptr) }; | ||
stored = unsafe { vmulq_n_f32(stored, 2f32) }; | ||
diffs = unsafe { vsubq_f32(diffs, stored) }; | ||
} | ||
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let next_row_y = | ||
clamp_edge!(edge_mode, y + radius_64, 0, height_wide - 1) * (stride as usize); | ||
let next_row_x = x as usize * CHANNELS_COUNT; | ||
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let s_ptr = unsafe { bytes.slice.as_ptr().add(next_row_y + next_row_x) as *mut f16 }; | ||
let pixel_color = unsafe { load_f32_f16::<CHANNELS_COUNT>(s_ptr) }; | ||
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let arr_index = ((y + radius_64) & 1023) as usize; | ||
let buf_ptr = unsafe { buffer.as_mut_ptr().add(arr_index) as *mut f32 }; | ||
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diffs = unsafe { vaddq_f32(diffs, pixel_color) }; | ||
summs = unsafe { vaddq_f32(summs, diffs) }; | ||
unsafe { | ||
vst1q_f32(buf_ptr, pixel_color); | ||
} | ||
} | ||
} | ||
} | ||
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pub fn fast_gaussian_horizontal_pass_neon_f16< | ||
T, | ||
const CHANNELS_COUNT: usize, | ||
const EDGE_MODE: usize, | ||
>( | ||
undef_bytes: &UnsafeSlice<T>, | ||
stride: u32, | ||
width: u32, | ||
height: u32, | ||
radius: u32, | ||
start: u32, | ||
end: u32, | ||
) { | ||
let edge_mode: EdgeMode = EDGE_MODE.into(); | ||
let bytes: &UnsafeSlice<'_, f16> = unsafe { std::mem::transmute(undef_bytes) }; | ||
let mut buffer: [[f32; 4]; 1024] = [[0f32; 4]; 1024]; | ||
let radius_64 = radius as i64; | ||
let width_wide = width as i64; | ||
let weight = 1.0f32 / ((radius as f32) * (radius as f32)); | ||
let f_weight = unsafe { vdupq_n_f32(weight) }; | ||
for y in start..std::cmp::min(height, end) { | ||
let mut diffs: float32x4_t = unsafe { vdupq_n_f32(0f32) }; | ||
let mut summs: float32x4_t = unsafe { vdupq_n_f32(0f32) }; | ||
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let current_y = ((y as i64) * (stride as i64)) as usize; | ||
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let start_x = 0 - 2 * radius_64; | ||
for x in start_x..(width as i64) { | ||
if x >= 0 { | ||
let current_px = (std::cmp::max(x, 0) as u32) as usize * CHANNELS_COUNT; | ||
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let prepared_px = unsafe { vmulq_f32(summs, f_weight) }; | ||
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unsafe { | ||
let dst_ptr = bytes.slice.as_ptr().add(current_y + current_px) as *mut f16; | ||
store_f32_f16::<CHANNELS_COUNT>(dst_ptr, prepared_px); | ||
} | ||
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let arr_index = ((x - radius_64) & 1023) as usize; | ||
let d_arr_index = (x & 1023) as usize; | ||
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let d_buf_ptr = unsafe { buffer.as_mut_ptr().add(d_arr_index) as *mut f32 }; | ||
let mut d_stored = unsafe { vld1q_f32(d_buf_ptr) }; | ||
d_stored = unsafe { vmulq_n_f32(d_stored, 2f32) }; | ||
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let buf_ptr = unsafe { buffer.as_mut_ptr().add(arr_index) as *mut f32 }; | ||
let a_stored = unsafe { vld1q_f32(buf_ptr) }; | ||
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diffs = unsafe { vaddq_f32(diffs, vsubq_f32(a_stored, d_stored)) }; | ||
} else if x + radius_64 >= 0 { | ||
let arr_index = (x & 1023) as usize; | ||
let buf_ptr = unsafe { buffer.as_mut_ptr().add(arr_index) as *mut f32 }; | ||
let mut stored = unsafe { vld1q_f32(buf_ptr) }; | ||
stored = unsafe { vmulq_n_f32(stored, 2f32) }; | ||
diffs = unsafe { vsubq_f32(diffs, stored) }; | ||
} | ||
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let next_row_y = (y as usize) * (stride as usize); | ||
let next_row_x = clamp_edge!(edge_mode, x + radius_64, 0, width_wide - 1); | ||
let next_row_px = next_row_x * CHANNELS_COUNT; | ||
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let s_ptr = unsafe { bytes.slice.as_ptr().add(next_row_y + next_row_px) as *mut f16 }; | ||
let pixel_color = unsafe { load_f32_f16::<CHANNELS_COUNT>(s_ptr) }; | ||
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let arr_index = ((x + radius_64) & 1023) as usize; | ||
let buf_ptr = unsafe { buffer.as_mut_ptr().add(arr_index) as *mut f32 }; | ||
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diffs = unsafe { vaddq_f32(diffs, pixel_color) }; | ||
summs = unsafe { vaddq_f32(summs, diffs) }; | ||
unsafe { | ||
vst1q_f32(buf_ptr, pixel_color); | ||
} | ||
} | ||
} | ||
} |
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