@@ -18,6 +18,9 @@ use windows::{
use crate::*;
+const RENDER_TARGET_FORMAT: DXGI_FORMAT = DXGI_FORMAT_R8G8B8A8_UNORM;
+const BACK_BUFFER_FORMAT: DXGI_FORMAT = DXGI_FORMAT_B8G8R8A8_UNORM_SRGB;
+
pub(crate) struct DirectXRenderer {
atlas: Arc<DirectXAtlas>,
devices: DirectXDevices,
@@ -39,6 +42,8 @@ pub(crate) struct DirectXDevices {
struct DirectXContext {
swap_chain: ManuallyDrop<IDXGISwapChain1>,
back_buffer: [Option<ID3D11RenderTargetView>; 1],
+ msaa_target: ID3D11Texture2D,
+ msaa_view: ID3D11RenderTargetView,
viewport: [D3D11_VIEWPORT; 1],
// #[cfg(not(feature = "enable-renderdoc"))]
// direct_composition: DirectComposition,
@@ -164,7 +169,7 @@ impl DirectXRenderer {
BUFFER_COUNT as u32,
new_size.width.0 as u32,
new_size.height.0 as u32,
- DXGI_FORMAT_B8G8R8A8_UNORM,
+ RENDER_TARGET_FORMAT,
DXGI_SWAP_CHAIN_FLAG(0),
)?;
}
@@ -174,6 +179,15 @@ impl DirectXRenderer {
&self.devices.device_context,
)?;
self.context.back_buffer[0] = Some(backbuffer);
+
+ let (msaa_target, msaa_view) = create_msaa_target_and_its_view(
+ &self.devices.device,
+ new_size.width.0 as u32,
+ new_size.height.0 as u32,
+ )?;
+ self.context.msaa_target = msaa_target;
+ self.context.msaa_view = msaa_view;
+
self.context.viewport = set_viewport(
&self.devices.device_context,
new_size.width.0 as f32,
@@ -411,12 +425,15 @@ impl DirectXContext {
&devices.device,
&devices.device_context,
)?)];
+ let (msaa_target, msaa_view) = create_msaa_target_and_its_view(&devices.device, 1, 1)?;
let viewport = set_viewport(&devices.device_context, 1.0, 1.0);
set_rasterizer_state(&devices.device, &devices.device_context)?;
Ok(Self {
swap_chain,
back_buffer,
+ msaa_target,
+ msaa_view,
viewport,
// #[cfg(not(feature = "enable-renderdoc"))]
// direct_composition,
@@ -984,7 +1001,7 @@ fn create_swap_chain_default(
let desc = DXGI_SWAP_CHAIN_DESC1 {
Width: 1,
Height: 1,
- Format: DXGI_FORMAT_B8G8R8A8_UNORM,
+ Format: RENDER_TARGET_FORMAT,
Stereo: false.into(),
SampleDesc: DXGI_SAMPLE_DESC {
Count: 1,
@@ -1013,14 +1030,57 @@ fn set_render_target_view(
// https://stackoverflow.com/questions/65246961/does-the-backbuffer-that-a-rendertargetview-points-to-automagically-change-after
let back_buffer = unsafe {
let resource: ID3D11Texture2D = swap_chain.GetBuffer(0)?;
+ let desc = D3D11_RENDER_TARGET_VIEW_DESC {
+ Format: BACK_BUFFER_FORMAT,
+ ViewDimension: D3D11_RTV_DIMENSION_TEXTURE2D,
+ ..Default::default()
+ };
let mut buffer: Option<ID3D11RenderTargetView> = None;
- device.CreateRenderTargetView(&resource, None, Some(&mut buffer))?;
+ device.CreateRenderTargetView(&resource, Some(&desc), Some(&mut buffer))?;
buffer.unwrap()
};
unsafe { device_context.OMSetRenderTargets(Some(&[Some(back_buffer.clone())]), None) };
Ok(back_buffer)
}
+fn create_msaa_target_and_its_view(
+ device: &ID3D11Device,
+ width: u32,
+ height: u32,
+) -> Result<(ID3D11Texture2D, ID3D11RenderTargetView)> {
+ let msaa_target = unsafe {
+ let mut output = None;
+ let desc = D3D11_TEXTURE2D_DESC {
+ Width: width,
+ Height: height,
+ MipLevels: 1,
+ ArraySize: 1,
+ Format: BACK_BUFFER_FORMAT,
+ SampleDesc: DXGI_SAMPLE_DESC {
+ Count: 4,
+ Quality: D3D11_STANDARD_MULTISAMPLE_PATTERN.0 as u32,
+ },
+ Usage: D3D11_USAGE_DEFAULT,
+ BindFlags: D3D11_BIND_RENDER_TARGET.0 as u32,
+ CPUAccessFlags: 0,
+ MiscFlags: 0,
+ };
+ device.CreateTexture2D(&desc, None, Some(&mut output))?;
+ output.unwrap()
+ };
+ let msaa_view = unsafe {
+ let desc = D3D11_RENDER_TARGET_VIEW_DESC {
+ Format: BACK_BUFFER_FORMAT,
+ ViewDimension: D3D11_RTV_DIMENSION_TEXTURE2DMS,
+ ..Default::default()
+ };
+ let mut output = None;
+ device.CreateRenderTargetView(&msaa_target, Some(&desc), Some(&mut output))?;
+ output.unwrap()
+ };
+ Ok((msaa_target, msaa_view))
+}
+
#[inline]
fn set_viewport(
device_context: &ID3D11DeviceContext,