moxcms/conversions/sse/
rgb_xyz_q2_13.rs1use crate::conversions::rgbxyz_fixed::TransformMatrixShaperFixedPoint;
30use crate::conversions::sse::rgb_xyz::SseAlignedU16;
31use crate::transform::PointeeSizeExpressible;
32use crate::{CmsError, Layout, TransformExecutor};
33use num_traits::AsPrimitive;
34#[cfg(target_arch = "x86")]
35use std::arch::x86::*;
36#[cfg(target_arch = "x86_64")]
37use std::arch::x86_64::*;
38
39pub(crate) struct TransformShaperQ2_13Sse<
40 T: Copy,
41 const SRC_LAYOUT: u8,
42 const DST_LAYOUT: u8,
43 const LINEAR_CAP: usize,
44 const GAMMA_LUT: usize,
45 const PRECISION: i32,
46> {
47 pub(crate) profile: TransformMatrixShaperFixedPoint<i32, T, LINEAR_CAP>,
48 pub(crate) bit_depth: usize,
49}
50
51#[inline(always)]
52pub(crate) unsafe fn _xmm_load_epi32(f: &i32) -> __m128i {
53 let float_ref: &f32 = unsafe { &*(f as *const i32 as *const f32) };
54 unsafe { _mm_castps_si128(_mm_load_ss(float_ref)) }
55}
56
57impl<
58 T: Copy + PointeeSizeExpressible + 'static,
59 const SRC_LAYOUT: u8,
60 const DST_LAYOUT: u8,
61 const LINEAR_CAP: usize,
62 const GAMMA_LUT: usize,
63 const PRECISION: i32,
64> TransformShaperQ2_13Sse<T, SRC_LAYOUT, DST_LAYOUT, LINEAR_CAP, GAMMA_LUT, PRECISION>
65where
66 u32: AsPrimitive<T>,
67{
68 #[target_feature(enable = "sse4.1")]
69 unsafe fn transform_impl(&self, src: &[T], dst: &mut [T]) -> Result<(), CmsError> {
70 let src_cn = Layout::from(SRC_LAYOUT);
71 let dst_cn = Layout::from(DST_LAYOUT);
72 let src_channels = src_cn.channels();
73 let dst_channels = dst_cn.channels();
74
75 let mut temporary = SseAlignedU16([0; 8]);
76
77 if src.len() / src_channels != dst.len() / dst_channels {
78 return Err(CmsError::LaneSizeMismatch);
79 }
80 if src.len() % src_channels != 0 {
81 return Err(CmsError::LaneMultipleOfChannels);
82 }
83 if dst.len() % dst_channels != 0 {
84 return Err(CmsError::LaneMultipleOfChannels);
85 }
86
87 let t = self.profile.adaptation_matrix.transpose();
88
89 let max_colors = ((1 << self.bit_depth) - 1).as_();
90
91 unsafe {
92 let m0 = _mm_setr_epi16(
93 t.v[0][0], t.v[1][0], t.v[0][1], t.v[1][1], t.v[0][2], t.v[1][2], 0, 0,
94 );
95 let m2 = _mm_setr_epi16(t.v[2][0], 1, t.v[2][1], 1, t.v[2][2], 1, 0, 0);
96
97 let rnd_val = ((1i32 << (PRECISION - 1)) as i16).to_ne_bytes();
98 let rnd = _mm_set1_epi32(i32::from_ne_bytes([0, 0, rnd_val[0], rnd_val[1]]));
99
100 let v_max_value = _mm_set1_epi32(GAMMA_LUT as i32 - 1);
101
102 for (src, dst) in src
103 .chunks_exact(src_channels)
104 .zip(dst.chunks_exact_mut(dst_channels))
105 {
106 let rp = &self.profile.r_linear[src[src_cn.r_i()]._as_usize()];
107 let gp = &self.profile.g_linear[src[src_cn.g_i()]._as_usize()];
108 let bp = &self.profile.b_linear[src[src_cn.b_i()]._as_usize()];
109
110 let mut r = _xmm_load_epi32(rp);
111 let mut g = _xmm_load_epi32(gp);
112 let mut b = _xmm_load_epi32(bp);
113 let a = if src_channels == 4 {
114 src[src_cn.a_i()]
115 } else {
116 max_colors
117 };
118
119 r = _mm_shuffle_epi32::<0>(r);
120 g = _mm_shuffle_epi32::<0>(g);
121 b = _mm_shuffle_epi32::<0>(b);
122
123 g = _mm_slli_epi32::<16>(g);
124
125 let zrg0 = _mm_or_si128(r, g);
126 let zbz0 = _mm_or_si128(b, rnd);
127
128 let v0 = _mm_madd_epi16(zrg0, m0);
129 let v1 = _mm_madd_epi16(zbz0, m2);
130
131 let mut v = _mm_add_epi32(v0, v1);
132
133 v = _mm_srai_epi32::<PRECISION>(v);
134 v = _mm_max_epi32(v, _mm_setzero_si128());
135 v = _mm_min_epi32(v, v_max_value);
136
137 _mm_store_si128(temporary.0.as_mut_ptr() as *mut _, v);
138
139 dst[dst_cn.r_i()] = self.profile.r_gamma[temporary.0[0] as usize];
140 dst[dst_cn.g_i()] = self.profile.g_gamma[temporary.0[2] as usize];
141 dst[dst_cn.b_i()] = self.profile.b_gamma[temporary.0[4] as usize];
142 if dst_channels == 4 {
143 dst[dst_cn.a_i()] = a;
144 }
145 }
146 }
147
148 Ok(())
149 }
150}
151
152impl<
153 T: Copy + PointeeSizeExpressible + 'static + Default,
154 const SRC_LAYOUT: u8,
155 const DST_LAYOUT: u8,
156 const LINEAR_CAP: usize,
157 const GAMMA_LUT: usize,
158 const PRECISION: i32,
159> TransformExecutor<T>
160 for TransformShaperQ2_13Sse<T, SRC_LAYOUT, DST_LAYOUT, LINEAR_CAP, GAMMA_LUT, PRECISION>
161where
162 u32: AsPrimitive<T>,
163{
164 fn transform(&self, src: &[T], dst: &mut [T]) -> Result<(), CmsError> {
165 unsafe { self.transform_impl(src, dst) }
166 }
167}