skia_safe/gpu/ganesh/mtl/
backend_surface.rs

1pub mod backend_formats {
2    use skia_bindings as sb;
3
4    use crate::{
5        gpu::{mtl, BackendFormat},
6        prelude::*,
7    };
8
9    pub fn make_mtl(format: mtl::PixelFormat) -> BackendFormat {
10        BackendFormat::construct(|bf| unsafe { sb::C_GrBackendFormats_ConstructMtl(bf, format) })
11            .assert_valid()
12    }
13
14    pub fn as_mtl_format(backend_format: &BackendFormat) -> Option<mtl::PixelFormat> {
15        let pixel_format = unsafe { sb::C_GrBackendFormats_AsMtlFormat(backend_format.native()) };
16        // Mtl's PixelFormat == 0 is invalid.
17        (pixel_format != 0).if_true_some(pixel_format)
18    }
19}
20
21pub mod backend_textures {
22    use skia_bindings as sb;
23
24    use crate::{
25        gpu::{self, mtl, BackendTexture},
26        prelude::*,
27    };
28
29    #[allow(clippy::missing_safety_doc)]
30    pub unsafe fn make_mtl(
31        (width, height): (i32, i32),
32        mipmapped: gpu::Mipmapped,
33        mtl_info: &mtl::TextureInfo,
34        label: impl AsRef<str>,
35    ) -> BackendTexture {
36        let label = label.as_ref().as_bytes();
37        BackendTexture::from_native_if_valid(sb::C_GrBackendTextures_newMtl(
38            width,
39            height,
40            mipmapped,
41            mtl_info.native(),
42            label.as_ptr() as _,
43            label.len(),
44        ))
45        .unwrap()
46    }
47
48    pub fn get_mtl_texture_info(texture: &BackendTexture) -> Option<mtl::TextureInfo> {
49        unsafe {
50            let mut texture_info = mtl::TextureInfo::default();
51            sb::C_GrBackendTextures_GetMtlTextureInfo(texture.native(), texture_info.native_mut())
52                .if_true_some(texture_info)
53        }
54    }
55}
56
57pub mod backend_render_targets {
58    use skia_bindings as sb;
59
60    use crate::{
61        gpu::{mtl, BackendRenderTarget},
62        prelude::*,
63    };
64
65    pub fn make_mtl(
66        (width, height): (i32, i32),
67        mtl_info: &mtl::TextureInfo,
68    ) -> BackendRenderTarget {
69        BackendRenderTarget::construct(|target| unsafe {
70            sb::C_GrBackendRenderTargets_ConstructMtl(target, width, height, mtl_info.native())
71        })
72    }
73
74    pub fn get_mtl_texture_info(render_target: &BackendRenderTarget) -> Option<mtl::TextureInfo> {
75        let mut info = mtl::TextureInfo::default();
76        unsafe {
77            sb::C_GrBackendRenderTargets_GetMtlTextureInfo(
78                render_target.native(),
79                info.native_mut(),
80            )
81        }
82        .if_true_some(info)
83    }
84}
skia_safe/gpu/ganesh/mtl/backend_surface.rs

skia_safe/gpu/ganesh/mtl/
backend_surface.rs
