metal: implement direct scanout

src/gfx_apis/gl/renderer/context.rs

@@ -186,6 +186,7 @@ impl GlRenderContext {
         Ok(Rc::new(Texture {
             ctx: self.clone(),
             gl,
+            resv: Default::default(),
         }))
     }
 }

src/gfx_apis/gl/renderer/image.rs

@@ -28,6 +28,7 @@ impl Image {
         Ok(Rc::new(Texture {
             ctx: self.ctx.clone(),
             gl: GlTexture::import_img(&self.ctx.ctx, &self.gl)?,
+            resv: Default::default(),
         }))
     }
 

src/gfx_apis/gl/renderer/texture.rs

@@ -1,7 +1,7 @@
 use {
     crate::{
         format::Format,
-        gfx_api::{GfxError, GfxTexture},
+        gfx_api::{GfxError, GfxTexture, TextureReservations},
         gfx_apis::gl::{gl::texture::GlTexture, renderer::context::GlRenderContext, RenderError},
         video::dmabuf::DmaBuf,
     },
@@ -16,6 +16,7 @@ use {
 pub struct Texture {
     pub(in crate::gfx_apis::gl) ctx: Rc<GlRenderContext>,
     pub(in crate::gfx_apis::gl) gl: GlTexture,
+    pub(in crate::gfx_apis::gl) resv: TextureReservations,
 }
 
 impl Debug for Texture {
@@ -63,4 +64,8 @@ impl GfxTexture for Texture {
     fn dmabuf(&self) -> Option<&DmaBuf> {
         self.gl.img.as_ref().map(|i| &i.dmabuf)
     }
+
+    fn reservations(&self) -> &TextureReservations {
+        &self.resv
+    }
 }