cl3 0.9.1

// Copyright (c) 2021-2022 Via Technology Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//! FFI bindings for cl_d3d11.h  
//! cl_d3d11.h contains OpenCL extensions that provide interoperability with Direct3D 11.  
//! OpenCL extensions are documented in the [OpenCL-Registry](https://github.com/KhronosGroup/OpenCL-Registry)

pub use opencl_sys::cl_d3d11::*;
pub use opencl_sys::{
    cl_context, cl_int, cl_mem_flags, cl_mem_object_type, cl_uint, CL_INVALID_VALUE, CL_SUCCESS,
};

#[cfg(feature = "cl_khr_d3d11_sharing")]
use opencl_sys::cl_d3d11::clGetSupportedD3D11TextureFormatsINTEL;

#[allow(unused_imports)]
use libc::c_void;
#[allow(unused_imports)]
use std::ptr;

#[cfg(feature = "cl_khr_d3d11_sharing")]
pub fn get_supported_d3d11_texture_formats_intel(
    context: cl_context,
    flags: cl_mem_flags,
    image_type: cl_mem_object_type,
    plane: cl_uint,
) -> Result<Vec<cl_uint>, cl_int> {
    let mut count: cl_uint = 0;
    let status: cl_int = unsafe {
        clGetSupportedD3D11TextureFormatsINTEL(
            context,
            flags,
            image_type,
            plane,
            0,
            ptr::null_mut(),
            &mut count,
        )
    };
    if CL_SUCCESS != status {
        Err(status)
    } else {
        if 0 < count {
            // Get the d3d11_formats.
            let len = count as usize;
            let mut ids: Vec<cl_uint> = Vec::with_capacity(len);
            let status: cl_int = unsafe {
                clGetSupportedD3D11TextureFormatsINTEL(
                    context,
                    flags,
                    image_type,
                    plane,
                    count,
                    ids.as_mut_ptr(),
                    ptr::null_mut(),
                )
            };
            if CL_SUCCESS != status {
                Err(status)
            } else {
                Ok(ids)
            }
        } else {
            Ok(Vec::default())
        }
    }
}