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#![allow(dead_code)]
use prelude::*;
use std::ptr;
use std::mem;
use vk;
use device::Device;
use ::RawPtr;
use version::{FunctionPointers, V1_0};
use version::DeviceLoader;
#[derive(Debug)]
pub enum DeviceError {
LoadError(Vec<&'static str>),
VkError(vk::Result),
}
#[derive(Clone)]
pub struct Instance<V: FunctionPointers> {
handle: vk::Instance,
instance_fp: V::InstanceFp,
}
impl InstanceV1_0 for Instance<V1_0> {
type Fp = V1_0;
fn handle(&self) -> vk::Instance {
self.handle
}
fn fp_v1_0(&self) -> &vk::InstanceFnV1_0 {
&self.instance_fp.instance_fn
}
}
impl<V: FunctionPointers> Instance<V> {
pub fn handle(&self) -> vk::Instance {
self.handle
}
pub fn from_raw(handle: vk::Instance, version: V::InstanceFp) -> Self {
Instance {
handle: handle,
instance_fp: version,
}
}
}
#[allow(non_camel_case_types)]
pub trait InstanceV1_0 {
type Fp: FunctionPointers;
fn handle(&self) -> vk::Instance;
fn fp_v1_0(&self) -> &vk::InstanceFnV1_0;
unsafe fn create_device(&self,
physical_device: vk::PhysicalDevice,
create_info: &vk::DeviceCreateInfo,
allocation_callbacks: Option<&vk::AllocationCallbacks>)
-> Result<Device<Self::Fp>, DeviceError> {
let mut device: vk::Device = mem::uninitialized();
let err_code = self.fp_v1_0()
.create_device(physical_device,
create_info,
allocation_callbacks.as_raw_ptr(),
&mut device);
if err_code != vk::Result::Success {
return Err(DeviceError::VkError(err_code));
}
let device_fn =
<<Self as InstanceV1_0>::Fp as FunctionPointers>::DeviceFp::load(self.fp_v1_0(), device).map_err(|err| DeviceError::LoadError(err))?;
Ok(Device::from_raw(device, device_fn))
}
fn get_device_proc_addr(&self,
device: vk::Device,
p_name: *const vk::c_char)
-> vk::PFN_vkVoidFunction {
unsafe { self.fp_v1_0().get_device_proc_addr(device, p_name) }
}
unsafe fn destroy_instance(&self, allocation_callbacks: Option<&vk::AllocationCallbacks>) {
self.fp_v1_0().destroy_instance(self.handle(), allocation_callbacks.as_raw_ptr());
}
fn get_physical_device_format_properties(&self,
physical_device: vk::PhysicalDevice,
format: vk::Format)
-> vk::FormatProperties {
unsafe {
let mut format_prop = mem::uninitialized();
self.fp_v1_0()
.get_physical_device_format_properties(physical_device, format, &mut format_prop);
format_prop
}
}
fn get_physical_device_memory_properties(&self,
physical_device: vk::PhysicalDevice)
-> vk::PhysicalDeviceMemoryProperties {
unsafe {
let mut memory_prop = mem::uninitialized();
self.fp_v1_0()
.get_physical_device_memory_properties(physical_device, &mut memory_prop);
memory_prop
}
}
fn get_physical_device_properties(&self,
physical_device: vk::PhysicalDevice)
-> vk::PhysicalDeviceProperties {
unsafe {
let mut prop = mem::uninitialized();
self.fp_v1_0()
.get_physical_device_properties(physical_device, &mut prop);
prop
}
}
fn get_physical_device_queue_family_properties(&self,
physical_device: vk::PhysicalDevice)
-> Vec<vk::QueueFamilyProperties> {
unsafe {
let mut queue_count = 0;
self.fp_v1_0()
.get_physical_device_queue_family_properties(physical_device,
&mut queue_count,
ptr::null_mut());
let mut queue_families_vec = Vec::with_capacity(queue_count as usize);
self.fp_v1_0()
.get_physical_device_queue_family_properties(physical_device,
&mut queue_count,
queue_families_vec.as_mut_ptr());
queue_families_vec.set_len(queue_count as usize);
queue_families_vec
}
}
fn enumerate_physical_devices(&self) -> VkResult<Vec<vk::PhysicalDevice>> {
unsafe {
let mut num = mem::uninitialized();
self.fp_v1_0()
.enumerate_physical_devices(self.handle(), &mut num, ptr::null_mut());
let mut physical_devices = Vec::<vk::PhysicalDevice>::with_capacity(num as usize);
let err_code = self.fp_v1_0()
.enumerate_physical_devices(self.handle(), &mut num, physical_devices.as_mut_ptr());
physical_devices.set_len(num as usize);
match err_code {
vk::Result::Success => Ok(physical_devices),
_ => Err(err_code),
}
}
}
fn enumerate_device_extension_properties
(&self,
device: vk::PhysicalDevice)
-> Result<Vec<vk::ExtensionProperties>, vk::Result> {
unsafe {
let mut num = 0;
self.fp_v1_0()
.enumerate_device_extension_properties(device,
ptr::null(),
&mut num,
ptr::null_mut());
let mut data = Vec::with_capacity(num as usize);
let err_code = self.fp_v1_0()
.enumerate_device_extension_properties(device,
ptr::null(),
&mut num,
data.as_mut_ptr());
data.set_len(num as usize);
match err_code {
vk::Result::Success => Ok(data),
_ => Err(err_code),
}
}
}
}