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egl: EGLBuffer add accessor for EGLImages, remove old code

This commit is contained in:
Victor Brekenfeld 2021-04-26 21:42:30 +02:00
parent 8e3b0c0b9b
commit 348c63b350
1 changed files with 5 additions and 51 deletions
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56
src/backend/egl/mod.rs
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@ -276,59 +276,13 @@ impl EGLBuffer {
self.format.num_planes() self.format.num_planes()
} }
/* pub fn image(&self, plane: usize) -> Option<EGLImage> {
/// Bind plane to an OpenGL texture id if plane > self.format.num_planes() {
/// None
/// This does only temporarily modify the OpenGL state any changes are reverted before returning. } else {
/// The given `GLGraphicsBackend` must be the one belonging to the `tex_id` and will be the current Some(self.images[plane])
/// context (and surface if applicable) after this function returns.
///
/// # Safety
///
/// The given `tex_id` needs to be a valid GL texture in the given context otherwise undefined behavior might occur.
#[cfg(feature = "renderer_gl")]
pub unsafe fn bind_to_texture(
&self,
plane: usize,
tex_id: c_uint,
backend: &dyn GLGraphicsBackend,
) -> ::std::result::Result<(), TextureCreationError> {
// receive the list of extensions for *this* context
backend
.make_current()
.map_err(|_| TextureCreationError::ContextLost)?;
let egl_to_texture_support = {
// the list of gl extensions supported by the context
let data = CStr::from_ptr(self.gl.GetString(gl_ffi::EXTENSIONS) as *const _)
.to_bytes()
.to_vec();
let list = String::from_utf8(data).unwrap();
list.split(' ')
.any(|s| s == "GL_OES_EGL_image" || s == "GL_OES_EGL_image_base")
};
if !egl_to_texture_support {
return Err(TextureCreationError::GLExtensionNotSupported("GL_OES_EGL_image"));
} }
let mut old_tex_id: i32 = 0;
self.gl.GetIntegerv(gl_ffi::TEXTURE_BINDING_2D, &mut old_tex_id);
self.gl.BindTexture(gl_ffi::TEXTURE_2D, tex_id);
self.gl.EGLImageTargetTexture2DOES(
gl_ffi::TEXTURE_2D,
*self
.images
.get(plane)
.ok_or(TextureCreationError::PlaneIndexOutOfBounds)?,
);
let res = match ffi::egl::GetError() as u32 {
ffi::egl::SUCCESS => Ok(()),
err => Err(TextureCreationError::TextureBindingFailed(err)),
};
self.gl.BindTexture(gl_ffi::TEXTURE_2D, old_tex_id as u32);
res
} }
*/
} }
#[cfg(feature = "wayland_frontend")] #[cfg(feature = "wayland_frontend")]