skia_safe/effects/
color_matrix.rs

1use crate::{prelude::*, YUVColorSpace};
2use skia_bindings::{self as sb, SkColorMatrix};
3use std::fmt;
4
5pub type ColorMatrix = Handle<SkColorMatrix>;
6unsafe_send_sync!(ColorMatrix);
7
8impl NativeDrop for SkColorMatrix {
9    fn drop(&mut self) {}
10}
11
12impl PartialEq for ColorMatrix {
13    fn eq(&self, other: &Self) -> bool {
14        let mut array_self = [0.0f32; 20];
15        let mut array_other = [0.0f32; 20];
16        self.get_row_major(&mut array_self);
17        other.get_row_major(&mut array_other);
18        array_self == array_other
19    }
20}
21
22impl Default for ColorMatrix {
23    fn default() -> Self {
24        ColorMatrix::construct(|cm| unsafe { sb::C_SkColorMatrix_Construct(cm) })
25    }
26}
27
28impl fmt::Debug for ColorMatrix {
29    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
30        f.debug_struct("ColorMatrix")
31            .field("mat", &self.native().fMat)
32            .finish()
33    }
34}
35
36impl ColorMatrix {
37    #[allow(clippy::too_many_arguments)]
38    pub fn new(
39        m00: f32,
40        m01: f32,
41        m02: f32,
42        m03: f32,
43        m04: f32,
44        m10: f32,
45        m11: f32,
46        m12: f32,
47        m13: f32,
48        m14: f32,
49        m20: f32,
50        m21: f32,
51        m22: f32,
52        m23: f32,
53        m24: f32,
54        m30: f32,
55        m31: f32,
56        m32: f32,
57        m33: f32,
58        m34: f32,
59    ) -> Self {
60        ColorMatrix::construct(|cm| unsafe {
61            sb::C_SkColorMatrix_Construct2(
62                cm, m00, m01, m02, m03, m04, m10, m11, m12, m13, m14, m20, m21, m22, m23, m24, m30,
63                m31, m32, m33, m34,
64            )
65        })
66    }
67
68    pub fn rgb_to_yuv(rgb: YUVColorSpace) -> Self {
69        Self::from_native_c(unsafe { sb::SkColorMatrix_RGBtoYUV(rgb) })
70    }
71
72    pub fn yuv_to_rgb(yuv: YUVColorSpace) -> Self {
73        Self::from_native_c(unsafe { sb::SkColorMatrix_YUVtoRGB(yuv) })
74    }
75
76    pub fn set_identity(&mut self) {
77        unsafe { self.native_mut().setIdentity() }
78    }
79
80    pub fn set_scale(
81        &mut self,
82        r_scale: f32,
83        g_scale: f32,
84        b_scale: f32,
85        a_scale: impl Into<Option<f32>>,
86    ) {
87        unsafe {
88            self.native_mut()
89                .setScale(r_scale, g_scale, b_scale, a_scale.into().unwrap_or(1.0))
90        }
91    }
92
93    pub fn post_translate(&mut self, dr: f32, dg: f32, db: f32, da: f32) {
94        unsafe { self.native_mut().postTranslate(dr, dg, db, da) }
95    }
96
97    pub fn set_concat(&mut self, a: &ColorMatrix, b: &ColorMatrix) {
98        unsafe { self.native_mut().setConcat(a.native(), b.native()) }
99    }
100
101    pub fn pre_concat(&mut self, mat: &ColorMatrix) {
102        let self_ptr = self.native() as *const _;
103        unsafe { self.native_mut().setConcat(self_ptr, mat.native()) }
104    }
105
106    pub fn post_concat(&mut self, mat: &ColorMatrix) {
107        let self_ptr = self.native() as *const _;
108        unsafe { self.native_mut().setConcat(mat.native(), self_ptr) }
109    }
110
111    pub fn set_saturation(&mut self, sat: f32) {
112        unsafe { self.native_mut().setSaturation(sat) }
113    }
114
115    pub fn set_row_major(&mut self, src: &[f32; 20]) {
116        unsafe {
117            sb::C_SkColorMatrix_setRowMajor(self.native_mut(), src.as_ptr());
118        }
119    }
120
121    pub fn get_row_major(&self, dst: &mut [f32; 20]) {
122        unsafe {
123            sb::C_SkColorMatrix_getRowMajor(self.native(), dst.as_mut_ptr());
124        }
125    }
126}
skia_safe/effects/color_matrix.rs

skia_safe/effects/
color_matrix.rs
