use bitflags::bitflags;
use d3d11_ffi::{Direct3D::*, Direct3D11::*, Dxgi::IDXGIAdapter, Foundation::HMODULE};
use crate::{
blend_state::{BlendDesc, BlendState},
context::DeviceContext,
dsv::{DepthStencilDesc, DepthStencilState},
dxgi,
error::validate_input,
input_layout::{ElementOffset, InputElementDesc, InputLayout},
query::QueryDesc,
rasterizer::{RasterizerDesc, RasterizerState},
rtv::{RenderTargetView, RenderTargetViewDesc},
sampler::{SamplerDesc, SamplerState},
shader::*,
srv::{ShaderResourceView, ShaderResourceViewDesc},
texture::{Texture1D, Texture1dDesc, Texture2D, Texture2dDesc, Texture3D, Texture3dDesc},
uav::{UnorderedAccessView, UnorderedAccessViewDesc},
util::{to_pcstr, wrap_option_out_result, OptionalParam},
Buffer, BufferDesc, DepthStencilView, DepthStencilViewDesc, Query, Resource,
};
#[repr(transparent)]
#[derive(Clone)]
pub struct Device(pub(crate) ID3D11Device);
impl Device {
pub fn create(adapter: Option<IDXGIAdapter>, debug: bool) -> crate::Result<Self> {
let mut device = None;
let driver_type = if adapter.is_some() {
D3D_DRIVER_TYPE_UNKNOWN
} else {
D3D_DRIVER_TYPE_HARDWARE
};
unsafe {
D3D11CreateDevice(
adapter.as_ref(),
driver_type,
HMODULE::default(),
if debug {
D3D11_CREATE_DEVICE_DEBUG
} else {
Default::default()
},
Some(&[D3D_FEATURE_LEVEL_11_1, D3D_FEATURE_LEVEL_11_0]),
D3D11_SDK_VERSION,
Some(&mut device),
None,
None,
)?;
}
Ok(Self(device.unwrap()))
}
}
macro_rules! generate_create_shader_method {
($name:ident, $method:ident, $shader_type:ident) => {
pub fn $name(&self, bytecode: &[u8]) -> crate::Result<$shader_type> {
let inner =
wrap_option_out_result(|out| unsafe { self.0.$method(bytecode, None, out) })?;
Ok($shader_type(inner))
}
};
}
#[cfg_attr(feature = "profiling", profiling::all_functions)]
impl Device {
pub fn get_immediate_context(&self) -> DeviceContext {
DeviceContext::from_raw(
unsafe { self.0.GetImmediateContext() }.expect("Failed to get immediate context"),
)
}
pub fn create_deferred_context(&self) -> crate::Result<DeviceContext> {
let inner = wrap_option_out_result(|out| unsafe { self.0.CreateDeferredContext(0, out) })?;
Ok(DeviceContext::from_raw(inner))
}
pub fn create_sampler_state(&self, desc: &SamplerDesc) -> crate::Result<SamplerState> {
let inner =
wrap_option_out_result(|out| unsafe { self.0.CreateSamplerState(desc.as_ffi(), out) })?;
Ok(SamplerState(inner))
}
pub fn create_buffer(
&self,
desc: &BufferDesc,
initial_data: Option<&[u8]>,
) -> crate::Result<Buffer> {
validate_input!(
!(initial_data.is_none() & desc.usage.is_immutable()),
"Initial data must be provided for immutable buffers"
);
validate_input!(desc.byte_width > 0, "Buffer size must be greater than zero");
let initial_data = initial_data.map(|d| D3D11_SUBRESOURCE_DATA {
pSysMem: d.as_ptr() as _,
SysMemPitch: d.len() as u32,
SysMemSlicePitch: 0,
});
let inner = wrap_option_out_result(|out| unsafe {
self.0
.CreateBuffer(desc.as_ffi(), initial_data.as_ref().map(|d| d as _), out)
})?;
Ok(Buffer(inner))
}
fn validate_texture_desc(
format: dxgi::Format,
mips_given: usize,
mip_levels: u32,
array_size: u32,
) -> crate::Result<()> {
validate_input!(
mips_given as u32 == (array_size * mip_levels),
"Invalid number of initial data structures provided (expected {}, got {})",
array_size * mip_levels,
mips_given
);
validate_input!(
!(mips_given == 0 && format.is_compressed()),
"Cannot generate mipmaps for compressed formats (zero mip levels given)"
);
Ok(())
}
pub fn create_texture1d(
&self,
desc: &Texture1dDesc,
initial_data: Option<&[D3D11_SUBRESOURCE_DATA]>,
) -> crate::Result<Texture1D> {
if let Some(id) = initial_data {
Self::validate_texture_desc(desc.format, id.len(), desc.mip_levels, 1)?;
} else {
validate_input!(
!desc.usage.is_immutable(),
"Initial data must be provided for immutable textures"
);
}
let inner = wrap_option_out_result(|out| unsafe {
self.0
.CreateTexture1D(desc.as_ffi(), initial_data.map(|d| d.as_ptr()), out)
})?;
Ok(Texture1D(inner))
}
pub fn create_texture2d(
&self,
desc: &Texture2dDesc,
initial_data: Option<&[D3D11_SUBRESOURCE_DATA]>,
) -> crate::Result<Texture2D> {
if let Some(id) = initial_data {
Self::validate_texture_desc(desc.format, id.len(), desc.mip_levels, desc.array_size)?;
} else {
validate_input!(
!desc.usage.is_immutable(),
"Initial data must be provided for immutable textures"
);
}
let inner = wrap_option_out_result(|out| unsafe {
self.0
.CreateTexture2D(desc.as_ffi(), initial_data.map(|d| d.as_ptr()), out)
})?;
Ok(Texture2D(inner))
}
pub fn create_texture3d(
&self,
desc: &Texture3dDesc,
initial_data: Option<&[D3D11_SUBRESOURCE_DATA]>,
) -> crate::Result<Texture3D> {
if let Some(id) = initial_data {
Self::validate_texture_desc(desc.format, id.len(), desc.mip_levels, 1)?;
} else {
validate_input!(
!desc.usage.is_immutable(),
"Initial data must be provided for immutable textures"
);
}
let inner = wrap_option_out_result(|out| unsafe {
self.0
.CreateTexture3D(desc.as_ffi(), initial_data.map(|d| d.as_ptr()), out)
})?;
Ok(Texture3D(inner))
}
generate_create_shader_method!(create_vertex_shader, CreateVertexShader, VertexShader);
generate_create_shader_method!(create_pixel_shader, CreatePixelShader, PixelShader);
generate_create_shader_method!(create_geometry_shader, CreateGeometryShader, GeometryShader);
generate_create_shader_method!(create_hull_shader, CreateHullShader, HullShader);
generate_create_shader_method!(create_domain_shader, CreateDomainShader, DomainShader);
generate_create_shader_method!(create_compute_shader, CreateComputeShader, ComputeShader);
pub fn create_render_target_view(
&self,
resource: &impl Resource,
desc: Option<&RenderTargetViewDesc>,
) -> crate::Result<RenderTargetView> {
if let Some(desc) = desc {
validate_input!(!desc.format.is_typeless(), "Format must not be typeless");
}
let inner = wrap_option_out_result(|out| unsafe {
self.0.CreateRenderTargetView(
&resource.to_ffi_resource(),
desc.map(|d| d.as_ffi()),
out,
)
})?;
Ok(RenderTargetView(inner))
}
pub fn create_depth_stencil_view(
&self,
resource: &impl Resource,
desc: Option<&DepthStencilViewDesc>,
) -> crate::Result<DepthStencilView> {
let inner = wrap_option_out_result(|out| unsafe {
self.0.CreateDepthStencilView(
&resource.to_ffi_resource(),
desc.map(|d| d.as_ffi()),
out,
)
})?;
Ok(DepthStencilView(inner))
}
pub fn create_shader_resource_view(
&self,
resource: &impl Resource,
desc: impl OptionalParam<Output = ShaderResourceViewDesc>,
) -> crate::Result<ShaderResourceView> {
if let Some(desc) = desc.as_option() {
if desc.view_dimension.is_texture() {
validate_input!(
!desc.format.is_typeless(),
"SRV format must not be typeless"
);
}
}
let inner = wrap_option_out_result(|out| unsafe {
self.0.CreateShaderResourceView(
&resource.to_ffi_resource(),
desc.as_option().map(|d| d.as_ffi()),
out,
)
})?;
Ok(ShaderResourceView(inner))
}
pub fn create_unordered_access_view(
&self,
resource: &impl Resource,
desc: impl OptionalParam<Output = UnorderedAccessViewDesc>,
) -> crate::Result<UnorderedAccessView> {
let inner = wrap_option_out_result(|out| unsafe {
self.0.CreateUnorderedAccessView(
&resource.to_ffi_resource(),
desc.as_option().map(|d| d.as_ffi()),
out,
)
})?;
Ok(UnorderedAccessView(inner))
}
pub fn create_input_layout(
&self,
desc: &[InputElementDesc],
shader_bytecode: &[u8],
) -> crate::Result<InputLayout> {
let mut strings = vec![];
let mut descs_ffi = vec![];
for d in desc {
let (cstring, pstring) = to_pcstr(&d.semantic_name);
strings.push(cstring);
descs_ffi.push(D3D11_INPUT_ELEMENT_DESC {
SemanticName: pstring,
SemanticIndex: d.semantic_index,
Format: d.format.into(),
InputSlot: d.input_slot,
AlignedByteOffset: match d.aligned_byte_offset {
ElementOffset::Append => D3D11_APPEND_ALIGNED_ELEMENT,
ElementOffset::Absolute(offset) => offset,
},
InputSlotClass: d.input_slot_class.clone().into(),
InstanceDataStepRate: d.instance_data_step_rate,
});
}
let inner = wrap_option_out_result(|out| unsafe {
self.0.CreateInputLayout(&descs_ffi, shader_bytecode, out)
})?;
Ok(InputLayout(inner))
}
pub fn create_rasterizer_state(&self, desc: &RasterizerDesc) -> crate::Result<RasterizerState> {
let inner = wrap_option_out_result(|out| unsafe {
self.0.CreateRasterizerState(desc.as_ffi(), out)
})?;
Ok(RasterizerState(inner))
}
pub fn create_depth_stencil_state(
&self,
desc: &DepthStencilDesc,
) -> crate::Result<DepthStencilState> {
let inner = wrap_option_out_result(|out| unsafe {
self.0.CreateDepthStencilState(desc.as_ffi(), out)
})?;
Ok(DepthStencilState(inner))
}
pub fn create_blend_state(&self, desc: &BlendDesc) -> crate::Result<BlendState> {
let inner =
wrap_option_out_result(|out| unsafe { self.0.CreateBlendState(desc.as_ffi(), out) })?;
Ok(BlendState(inner))
}
pub fn create_query(&self, desc: &QueryDesc) -> crate::Result<Query> {
let inner =
wrap_option_out_result(|out| unsafe { self.0.CreateQuery(desc.as_ffi(), out) })?;
Ok(Query(inner))
}
pub fn check_format_support(&self, format: dxgi::Format) -> FormatSupport {
FormatSupport::from_bits_truncate(unsafe {
self.0.CheckFormatSupport(format.into()).unwrap()
})
}
}
bitflags! {
#[derive(Clone, Copy, Debug)]
pub struct FormatSupport : u32 {
const BACK_BUFFER_CAST = D3D11_FORMAT_SUPPORT_BACK_BUFFER_CAST.0 as u32;
const BLENDABLE = D3D11_FORMAT_SUPPORT_BLENDABLE.0 as u32;
const BUFFER = D3D11_FORMAT_SUPPORT_BUFFER.0 as u32;
const CAST_WITHIN_BIT_LAYOUT = D3D11_FORMAT_SUPPORT_CAST_WITHIN_BIT_LAYOUT.0 as u32;
const CPU_LOCKABLE = D3D11_FORMAT_SUPPORT_CPU_LOCKABLE.0 as u32;
const DECODER_OUTPUT = D3D11_FORMAT_SUPPORT_DECODER_OUTPUT.0 as u32;
const DEPTH_STENCIL = D3D11_FORMAT_SUPPORT_DEPTH_STENCIL.0 as u32;
const DISPLAY = D3D11_FORMAT_SUPPORT_DISPLAY.0 as u32;
const IA_INDEX_BUFFER = D3D11_FORMAT_SUPPORT_IA_INDEX_BUFFER.0 as u32;
const IA_VERTEX_BUFFER = D3D11_FORMAT_SUPPORT_IA_VERTEX_BUFFER.0 as u32;
const MIP = D3D11_FORMAT_SUPPORT_MIP.0 as u32;
const MIP_AUTOGEN = D3D11_FORMAT_SUPPORT_MIP_AUTOGEN.0 as u32;
const MULTISAMPLE_LOAD = D3D11_FORMAT_SUPPORT_MULTISAMPLE_LOAD.0 as u32;
const MULTISAMPLE_RENDERTARGET = D3D11_FORMAT_SUPPORT_MULTISAMPLE_RENDERTARGET.0 as u32;
const MULTISAMPLE_RESOLVE = D3D11_FORMAT_SUPPORT_MULTISAMPLE_RESOLVE.0 as u32;
const RENDER_TARGET = D3D11_FORMAT_SUPPORT_RENDER_TARGET.0 as u32;
const SHADER_GATHER = D3D11_FORMAT_SUPPORT_SHADER_GATHER.0 as u32;
const SHADER_GATHER_COMPARISON = D3D11_FORMAT_SUPPORT_SHADER_GATHER_COMPARISON.0 as u32;
const SHADER_LOAD = D3D11_FORMAT_SUPPORT_SHADER_LOAD.0 as u32;
const SHADER_SAMPLE = D3D11_FORMAT_SUPPORT_SHADER_SAMPLE.0 as u32;
const SHADER_SAMPLE_COMPARISON = D3D11_FORMAT_SUPPORT_SHADER_SAMPLE_COMPARISON.0 as u32;
const SHADER_SAMPLE_MONO_TEXT = D3D11_FORMAT_SUPPORT_SHADER_SAMPLE_MONO_TEXT.0 as u32;
const SO_BUFFER = D3D11_FORMAT_SUPPORT_SO_BUFFER.0 as u32;
const TEXTURE1D = D3D11_FORMAT_SUPPORT_TEXTURE1D.0 as u32;
const TEXTURE2D = D3D11_FORMAT_SUPPORT_TEXTURE2D.0 as u32;
const TEXTURE3D = D3D11_FORMAT_SUPPORT_TEXTURE3D.0 as u32;
const TEXTURECUBE = D3D11_FORMAT_SUPPORT_TEXTURECUBE.0 as u32;
const TYPED_UNORDERED_ACCESS_VIEW = D3D11_FORMAT_SUPPORT_TYPED_UNORDERED_ACCESS_VIEW.0 as u32;
const VIDEO_ENCODER = D3D11_FORMAT_SUPPORT_VIDEO_ENCODER.0 as u32;
const VIDEO_PROCESSOR_INPUT = D3D11_FORMAT_SUPPORT_VIDEO_PROCESSOR_INPUT.0 as u32;
const VIDEO_PROCESSOR_OUTPUT = D3D11_FORMAT_SUPPORT_VIDEO_PROCESSOR_OUTPUT.0 as u32;
}
}