external/fast_image_resize
1
0
Fork 0
mirror of https://github.com/Cykooz/fast_image_resize.git synced 2026-10-08 01:11:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fixed NEON implementation for dividing image by alpha channel for images with U16x2 and U16x4 pixels .

Browse Source
This commit is contained in:
Kirill Kuzminykh
2025-05-15 21:32:45 +00:00
parent 6431b4d797
commit f5f52cd57d
1 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/neon_utils.rs
+5 -2
View File
@@ -400,11 +400,14 @@ pub unsafe fn mul_color_recip_alpha_u16x8(
recip_alpha_hi: float32x4_t,
zero: uint16x8_t,
) -> uint16x8_t {
let max_value = vdupq_n_u32(0xffff);
let color_lo_f32 = vcvtq_f32_u32(vreinterpretq_u32_u16(vzip1q_u16(color, zero)));
let res_lo_u32 = vcvtaq_u32_f32(vmulq_f32(color_lo_f32, recip_alpha_lo));
let mut res_lo_u32 = vcvtaq_u32_f32(vmulq_f32(color_lo_f32, recip_alpha_lo));
res_lo_u32 = vminq_u32(res_lo_u32, max_value);
let color_hi_f32 = vcvtq_f32_u32(vreinterpretq_u32_u16(vzip2q_u16(color, zero)));
let res_hi_u32 = vcvtaq_u32_f32(vmulq_f32(color_hi_f32, recip_alpha_hi));
let mut res_hi_u32 = vcvtaq_u32_f32(vmulq_f32(color_hi_f32, recip_alpha_hi));
res_hi_u32 = vminq_u32(res_hi_u32, max_value);
vcombine_u16(vmovn_u32(res_lo_u32), vmovn_u32(res_hi_u32))
}