2022-11-29 17:57:04 +11:00
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use windows::Win32::Graphics::Direct3D11::{D3D11_BIND_RENDER_TARGET, D3D11_BIND_SHADER_RESOURCE, D3D11_CPU_ACCESS_WRITE, D3D11_FORMAT_SUPPORT_RENDER_TARGET, D3D11_FORMAT_SUPPORT_SHADER_SAMPLE, D3D11_FORMAT_SUPPORT_TEXTURE2D, D3D11_RENDER_TARGET_VIEW_DESC, D3D11_RENDER_TARGET_VIEW_DESC_0, D3D11_RTV_DIMENSION_TEXTURE2D, D3D11_SHADER_RESOURCE_VIEW_DESC, D3D11_SHADER_RESOURCE_VIEW_DESC_0, D3D11_TEX2D_RTV, D3D11_TEX2D_SRV, D3D11_TEXTURE2D_DESC, D3D11_USAGE_DEFAULT, D3D11_USAGE_DYNAMIC, D3D11_VIEWPORT, ID3D11Device, ID3D11RenderTargetView, ID3D11ShaderResourceView, ID3D11Texture2D};
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use windows::Win32::Graphics::Direct3D::D3D_SRV_DIMENSION_TEXTURE2D;
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use windows::Win32::Graphics::Dxgi::Common::{DXGI_FORMAT, DXGI_SAMPLE_DESC};
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use librashader_common::{ImageFormat, Size};
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use librashader_presets::{Scale2D, ScaleType, Scaling};
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use crate::texture::Texture;
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use crate::util;
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use crate::util::d3d11_get_closest_format;
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2022-11-27 18:21:36 +11:00
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#[derive(Debug, Clone)]
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pub struct OwnedFramebuffer {
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pub texture: ID3D11Texture2D,
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2022-11-29 17:57:04 +11:00
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pub size: Size<u32>,
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pub format: DXGI_FORMAT,
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device: ID3D11Device,
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is_raw: bool
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2022-11-27 18:21:36 +11:00
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}
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2022-11-29 17:57:04 +11:00
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impl OwnedFramebuffer {
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pub fn new(device: &ID3D11Device, size: Size<u32>, format: ImageFormat) -> util::Result<OwnedFramebuffer> {
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unsafe {
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let format = d3d11_get_closest_format(device, DXGI_FORMAT::from(format),
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D3D11_FORMAT_SUPPORT_TEXTURE2D.0 | D3D11_FORMAT_SUPPORT_SHADER_SAMPLE.0 | D3D11_FORMAT_SUPPORT_RENDER_TARGET.0);
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eprintln!("{format:?}");
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let desc = default_desc(size, format);
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let texture = device.CreateTexture2D(&desc, None)?;
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Ok(OwnedFramebuffer {
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texture,
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size,
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format,
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device: device.clone(),
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is_raw: false,
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})
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}
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}
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pub(crate) fn scale(
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&mut self,
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scaling: Scale2D,
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format: ImageFormat,
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viewport_size: &Size<u32>,
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_original: &Texture,
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source: &Texture,
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) -> util::Result<Size<u32>> {
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if self.is_raw {
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return Ok(self.size);
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}
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2022-11-30 15:56:10 +11:00
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let size = librashader_runtime::scaling::scale(scaling, source.view.size, *viewport_size);
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2022-11-29 17:57:04 +11:00
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if self.size != size {
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self.size = size;
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2022-11-27 18:21:36 +11:00
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2022-11-29 17:57:04 +11:00
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self.init(
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size,
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if format == ImageFormat::Unknown {
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ImageFormat::R8G8B8A8Unorm
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} else {
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format
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},
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)?;
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}
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Ok(size)
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}
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pub fn init(&mut self, size: Size<u32>, format: ImageFormat) -> util::Result<()> {
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if self.is_raw {
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return Ok(());
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}
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let format = d3d11_get_closest_format(&self.device, DXGI_FORMAT::from(format),
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D3D11_FORMAT_SUPPORT_TEXTURE2D.0 |
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D3D11_FORMAT_SUPPORT_SHADER_SAMPLE.0 | D3D11_FORMAT_SUPPORT_RENDER_TARGET.0);
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2022-11-30 11:36:42 +11:00
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2022-11-29 17:57:04 +11:00
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let desc = default_desc(size, format);
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unsafe {
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let mut texture = self.device.CreateTexture2D(&desc, None)?;
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std::mem::swap(&mut self.texture, &mut texture);
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drop(texture)
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}
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self.format = format;
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Ok(())
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}
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pub fn create_shader_resource_view(&self) -> util::Result<ID3D11ShaderResourceView> {
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unsafe {
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Ok(self.device.CreateShaderResourceView(&self.texture, Some(&D3D11_SHADER_RESOURCE_VIEW_DESC {
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Format: self.format,
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ViewDimension: D3D_SRV_DIMENSION_TEXTURE2D,
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Anonymous: D3D11_SHADER_RESOURCE_VIEW_DESC_0 {
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Texture2D: D3D11_TEX2D_SRV {
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MostDetailedMip: 0,
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MipLevels: u32::MAX,
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}
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},
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}))?)
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}
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}
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pub fn create_render_target_view(&self) -> util::Result<ID3D11RenderTargetView> {
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unsafe {
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Ok(self.device.CreateRenderTargetView(&self.texture, Some(&D3D11_RENDER_TARGET_VIEW_DESC {
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Format: self.format,
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ViewDimension: D3D11_RTV_DIMENSION_TEXTURE2D,
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Anonymous: D3D11_RENDER_TARGET_VIEW_DESC_0 {
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Texture2D: D3D11_TEX2D_RTV {
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MipSlice: 0,
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}
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},
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}))?)
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}
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}
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pub fn as_output_framebuffer(&self) -> util::Result<OutputFramebuffer> {
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Ok(OutputFramebuffer {
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rtv: self.create_render_target_view()?,
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size: self.size,
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viewport: default_viewport(self.size)
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})
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}
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}
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#[derive(Debug, Clone)]
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2022-11-27 18:21:36 +11:00
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pub struct OutputFramebuffer {
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pub rtv: ID3D11RenderTargetView,
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pub size: Size<u32>,
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pub viewport: D3D11_VIEWPORT
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2022-11-29 17:57:04 +11:00
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}
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fn default_desc(size: Size<u32>, format: DXGI_FORMAT) -> D3D11_TEXTURE2D_DESC {
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D3D11_TEXTURE2D_DESC {
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Width: size.width,
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Height: size.height,
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MipLevels: 1,
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ArraySize: 1,
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Format: format,
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SampleDesc: DXGI_SAMPLE_DESC {
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Count: 1,
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Quality: 0,
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},
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Usage: D3D11_USAGE_DEFAULT,
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BindFlags: D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET,
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CPUAccessFlags: D3D11_CPU_ACCESS_WRITE,
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MiscFlags: Default::default(),
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}
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}
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pub const fn default_viewport(size: Size<u32>) -> D3D11_VIEWPORT {
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D3D11_VIEWPORT {
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TopLeftX: 0.0,
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TopLeftY: 0.0,
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Width: size.width as f32,
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Height: size.height as f32,
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MinDepth: 0.0,
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MaxDepth: 1.0,
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}
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2022-11-27 18:21:36 +11:00
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}
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