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use crate::com::ComPtr;
use winapi::um::d3d12;
pub type Heap = ComPtr<d3d12::ID3D12Heap>;
#[repr(u32)]
#[derive(Clone, Copy)]
pub enum HeapType {
Default = d3d12::D3D12_HEAP_TYPE_DEFAULT,
Upload = d3d12::D3D12_HEAP_TYPE_UPLOAD,
Readback = d3d12::D3D12_HEAP_TYPE_READBACK,
Custom = d3d12::D3D12_HEAP_TYPE_CUSTOM,
}
#[repr(u32)]
#[derive(Clone, Copy)]
pub enum CpuPageProperty {
Unknown = d3d12::D3D12_CPU_PAGE_PROPERTY_UNKNOWN,
NotAvailable = d3d12::D3D12_CPU_PAGE_PROPERTY_NOT_AVAILABLE,
WriteCombine = d3d12::D3D12_CPU_PAGE_PROPERTY_WRITE_COMBINE,
WriteBack = d3d12::D3D12_CPU_PAGE_PROPERTY_WRITE_BACK,
}
#[repr(u32)]
#[derive(Clone, Copy)]
pub enum MemoryPool {
Unknown = d3d12::D3D12_CPU_PAGE_PROPERTY_UNKNOWN,
L0 = d3d12::D3D12_MEMORY_POOL_L0,
L1 = d3d12::D3D12_MEMORY_POOL_L1,
}
bitflags::bitflags! {
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct HeapFlags: u32 {
const NONE = d3d12::D3D12_HEAP_FLAG_NONE;
const SHARED = d3d12::D3D12_HEAP_FLAG_SHARED;
const DENY_BUFFERS = d3d12::D3D12_HEAP_FLAG_DENY_BUFFERS;
const ALLOW_DISPLAY = d3d12::D3D12_HEAP_FLAG_ALLOW_DISPLAY;
const SHARED_CROSS_ADAPTER = d3d12::D3D12_HEAP_FLAG_SHARED_CROSS_ADAPTER;
const DENT_RT_DS_TEXTURES = d3d12::D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES;
const DENY_NON_RT_DS_TEXTURES = d3d12::D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES;
const HARDWARE_PROTECTED = d3d12::D3D12_HEAP_FLAG_HARDWARE_PROTECTED;
const ALLOW_WRITE_WATCH = d3d12::D3D12_HEAP_FLAG_ALLOW_WRITE_WATCH;
const ALLOW_ALL_BUFFERS_AND_TEXTURES = d3d12::D3D12_HEAP_FLAG_ALLOW_ALL_BUFFERS_AND_TEXTURES;
const ALLOW_ONLY_BUFFERS = d3d12::D3D12_HEAP_FLAG_ALLOW_ONLY_BUFFERS;
const ALLOW_ONLY_NON_RT_DS_TEXTURES = d3d12::D3D12_HEAP_FLAG_ALLOW_ONLY_NON_RT_DS_TEXTURES;
const ALLOW_ONLY_RT_DS_TEXTURES = d3d12::D3D12_HEAP_FLAG_ALLOW_ONLY_RT_DS_TEXTURES;
}
}
#[repr(transparent)]
pub struct HeapProperties(pub d3d12::D3D12_HEAP_PROPERTIES);
impl HeapProperties {
pub fn new(
heap_type: HeapType,
cpu_page_property: CpuPageProperty,
memory_pool_preference: MemoryPool,
creation_node_mask: u32,
visible_node_mask: u32,
) -> Self {
HeapProperties(d3d12::D3D12_HEAP_PROPERTIES {
Type: heap_type as _,
CPUPageProperty: cpu_page_property as _,
MemoryPoolPreference: memory_pool_preference as _,
CreationNodeMask: creation_node_mask,
VisibleNodeMask: visible_node_mask,
})
}
}
#[repr(transparent)]
pub struct HeapDesc(d3d12::D3D12_HEAP_DESC);
impl HeapDesc {
pub fn new(
size_in_bytes: u64,
properties: HeapProperties,
alignment: u64,
flags: HeapFlags,
) -> Self {
HeapDesc(d3d12::D3D12_HEAP_DESC {
SizeInBytes: size_in_bytes,
Properties: properties.0,
Alignment: alignment,
Flags: flags.bits(),
})
}
}