fmt: run clippy and rustfmt

librashader-capi/src/lib.rs

@@ -27,13 +27,30 @@
 //! ## Booleans
 //! Some option structs take `bool` values.
 //! Any booleans passed to librashader **must have a bit pattern equivalent to either `1` or `0`**. Any other value will cause
-//! **immediate undefined behaviour**.
+//! **immediate undefined behaviour**. Using `_Bool` from `stdbool.h` should maintain this invariant.
 //!
 //! ## Errors
 //! The librashader C API provides a robust, reflective error system. Every function returns a `libra_error_t`, which is either
 //! a null pointer, or a handle to an opaque allocated error object. If the returned error is null, then the function was successful.
 //! Otherwise, error information can be accessed via the `libra_error_` set of APIs. If an error indeed occurs, it may be freed by
 //! `libra_error_free`.
+//!
+//! It is **highly recommended** to check for errors after every call to a librashader API like in the following example.
+//!
+//! ```c
+//! libra_preset_t preset;
+//! libra_error_t error = libra.preset_create(
+//!         "slang-shaders/crt/crt-lottes.slangp", &preset);
+//! if (error != NULL) {
+//!    libra.error_print(error);
+//!    libra.error_free(&error);
+//!    exit(1);
+//! }
+//! ```
+//!
+//! There is a case to be made for skipping error checking for `*_filter_chain_frame` due to performance reasons,
+//! but only if you are certain that the safety invariants are upheld on each call. Failure to check for errors
+//! may result in **undefined behaviour** stemming from failure to uphold safety invariants.
 #![allow(non_camel_case_types)]
 #![feature(try_blocks)]
 #![feature(pointer_is_aligned)]

librashader-preprocess/src/error.rs

@@ -12,7 +12,9 @@ pub enum PreprocessError {
     #[error("the file was not found during resolution")]
     IOError(PathBuf, std::io::Error),
     /// A known encoding was not found for the file.
-    #[error("a known encoding was not found for the file. supported encodings are UTF-8 and Latin-1")]
+    #[error(
+        "a known encoding was not found for the file. supported encodings are UTF-8 and Latin-1"
+    )]
     EncodingError(PathBuf),
     /// Unexpected EOF when reading the source file.
     #[error("unexpected end of file")]

librashader-preprocess/src/include.rs

@@ -1,9 +1,9 @@
 use crate::{PreprocessError, SourceOutput};
+use encoding_rs::{DecoderResult, WINDOWS_1252};
 use std::fs::File;
 use std::io::Read;
 use std::path::Path;
 use std::str::Lines;
-use encoding_rs::{DecoderResult, WINDOWS_1252};
 
 #[cfg(feature = "line_directives")]
 const GL_GOOGLE_CPP_STYLE_LINE_DIRECTIVE: &str =
@@ -30,7 +30,8 @@ fn read_file(path: impl AsRef<Path>) -> Result<String, PreprocessError> {
 
             let mut latin1_string = String::with_capacity(len);
 
-            let (result, _) = WINDOWS_1252.new_decoder()
+            let (result, _) = WINDOWS_1252
+                .new_decoder()
                 .decode_to_string_without_replacement(&buf, &mut latin1_string, true);
             if result == DecoderResult::InputEmpty {
                 Ok(latin1_string)

librashader-reflect/src/error.rs

@@ -1,4 +1,4 @@
-use crate::reflect::semantics::{MemberOffset, UniformMemberBlock};
+use crate::reflect::semantics::UniformMemberBlock;
 use thiserror::Error;
 
 /// Error type for shader compilation.
@@ -82,7 +82,7 @@ pub enum ShaderReflectError {
         expected: usize,
         received: usize,
         ty: UniformMemberBlock,
-        pass: usize
+        pass: usize,
     },
     /// The size of the given uniform did not match up in both the vertex and fragment shader.
     #[error("mismatched component")]
@@ -90,7 +90,7 @@ pub enum ShaderReflectError {
         semantic: String,
         vertex: u32,
         fragment: u32,
-        pass: usize
+        pass: usize,
     },
     /// The binding number is already in use.
     #[error("the binding is already in use")]

librashader-reflect/src/reflect/cross.rs

@@ -1,6 +1,11 @@
 use crate::error::{SemanticsErrorKind, ShaderCompileError, ShaderReflectError};
 use crate::front::GlslangCompilation;
-use crate::reflect::semantics::{BindingMeta, BindingStage, MemberOffset, PushReflection, ShaderReflection, ShaderSemantics, TextureBinding, TextureSemanticMap, TextureSemantics, TextureSizeMeta, TypeInfo, UboReflection, UniqueSemanticMap, UniqueSemantics, ValidateTypeSemantics, VariableMeta, MAX_BINDINGS_COUNT, MAX_PUSH_BUFFER_SIZE, UniformMemberBlock};
+use crate::reflect::semantics::{
+    BindingMeta, BindingStage, MemberOffset, PushReflection, ShaderReflection, ShaderSemantics,
+    TextureBinding, TextureSemanticMap, TextureSemantics, TextureSizeMeta, TypeInfo, UboReflection,
+    UniformMemberBlock, UniqueSemanticMap, UniqueSemantics, ValidateTypeSemantics, VariableMeta,
+    MAX_BINDINGS_COUNT, MAX_PUSH_BUFFER_SIZE,
+};
 use crate::reflect::{align_uniform_size, ReflectShader};
 use std::ops::Deref;
 
@@ -311,7 +316,7 @@ where
                                     semantic: name,
                                     vertex: meta.size,
                                     fragment: typeinfo.size,
-                                    pass: pass_number
+                                    pass: pass_number,
                                 });
                             }
 
@@ -346,7 +351,7 @@ where
                                     semantic: name,
                                     vertex: meta.size,
                                     fragment: typeinfo.size,
-                                    pass: pass_number
+                                    pass: pass_number,
                                 });
                             }
 
@@ -851,7 +856,7 @@ mod test {
     use rustc_hash::FxHashMap;
 
     use crate::back::CompileShader;
-    use crate::front::shaderc::GlslangCompilation;
+    use crate::front::GlslangCompilation;
     use crate::reflect::semantics::{Semantic, ShaderSemantics, UniformSemantic, UniqueSemantics};
     use librashader_preprocess::ShaderSource;
     use spirv_cross::glsl;

librashader-reflect/src/reflect/semantics.rs

@@ -201,50 +201,46 @@ pub struct MemberOffset {
     pub push: Option<usize>,
 }
 
-
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 /// The block where a uniform member is located.
 pub enum UniformMemberBlock {
     /// The offset is for a UBO.
     Ubo,
     /// The offset is for a push constant block.
-    PushConstant
+    PushConstant,
 }
 
 impl UniformMemberBlock {
     /// A list of valid member block types.
-    pub const TYPES: [UniformMemberBlock; 2] = [UniformMemberBlock::Ubo, UniformMemberBlock::PushConstant];
+    pub const TYPES: [UniformMemberBlock; 2] =
+        [UniformMemberBlock::Ubo, UniformMemberBlock::PushConstant];
 }
 
 impl MemberOffset {
     pub(crate) fn new(off: usize, ty: UniformMemberBlock) -> Self {
         match ty {
-            UniformMemberBlock::Ubo => {
+            UniformMemberBlock::Ubo => MemberOffset {
-                MemberOffset {
                 ubo: Some(off),
                 push: None,
-                }
+            },
-            }
+            UniformMemberBlock::PushConstant => MemberOffset {
-            UniformMemberBlock::PushConstant => {
-                MemberOffset {
                 ubo: None,
                 push: Some(off),
-                }
+            },
-            }
         }
     }
 
     pub fn offset(&self, ty: UniformMemberBlock) -> Option<usize> {
         match ty {
-            UniformMemberBlock::Ubo => {self.ubo}
+            UniformMemberBlock::Ubo => self.ubo,
-            UniformMemberBlock::PushConstant => {self.push}
+            UniformMemberBlock::PushConstant => self.push,
         }
     }
 
     pub(crate) fn offset_mut(&mut self, ty: UniformMemberBlock) -> &mut Option<usize> {
         match ty {
-            UniformMemberBlock::Ubo => {&mut self.ubo}
+            UniformMemberBlock::Ubo => &mut self.ubo,
-            UniformMemberBlock::PushConstant => {&mut self.push}
+            UniformMemberBlock::PushConstant => &mut self.push,
         }
     }
 }

librashader-runtime-d3d11/src/hello_triangle.rs

@@ -411,7 +411,7 @@ pub mod d3d11_hello_triangle {
                     .ClearRenderTargetView(&resources.backbuffer_rtv, color.as_ptr());
                 self.context.ClearDepthStencilView(
                     &resources.depth_stencil_view,
-                    D3D11_CLEAR_DEPTH.0 as u32,
+                    D3D11_CLEAR_DEPTH.0,
                     1.0,
                     0,
                 );

librashader-runtime-d3d11/src/lib.rs

@@ -33,8 +33,7 @@ mod tests {
     #[test]
     fn triangle_d3d11() {
         let sample = hello_triangle::d3d11_hello_triangle::Sample::new(
-            // "../test/slang-shaders/presets/crt-royale-kurozumi.slangp",
+            "../test/slang-shaders/crt/crt-royale.slangp",
-            "../test/slang-shaders/bezel/Mega_Bezel/Presets/MBZ__0__SMOOTH-ADV.slangp",
             // "../test/basic.slangp",
             Some(&FilterChainOptionsD3D11 {
                 use_deferred_context: false,

librashader-runtime-d3d11/src/util.rs

@@ -2,7 +2,9 @@ use crate::error;
 use crate::error::assume_d3d11_init;
 use std::slice;
 use windows::core::PCSTR;
-use windows::Win32::Graphics::Direct3D::Fxc::{D3DCompile, D3DCOMPILE_DEBUG, D3DCOMPILE_OPTIMIZATION_LEVEL3, D3DCOMPILE_SKIP_OPTIMIZATION};
+use windows::Win32::Graphics::Direct3D::Fxc::{
+    D3DCompile, D3DCOMPILE_DEBUG, D3DCOMPILE_OPTIMIZATION_LEVEL3, D3DCOMPILE_SKIP_OPTIMIZATION,
+};
 use windows::Win32::Graphics::Direct3D::ID3DBlob;
 use windows::Win32::Graphics::Direct3D11::*;
 use windows::Win32::Graphics::Dxgi::Common::*;

librashader-runtime-gl/src/binding.rs

@@ -10,26 +10,10 @@ pub struct VariableLocation {
 
 impl VariableLocation {
     pub fn location(&self, offset_type: UniformMemberBlock) -> Option<UniformLocation<GLint>> {
-        let value = match offset_type {
+        match offset_type {
-            UniformMemberBlock::Ubo => {
+            UniformMemberBlock::Ubo => self.ubo,
-                self.ubo
+            UniformMemberBlock::PushConstant => self.push,
         }
-            UniformMemberBlock::PushConstant => {
-                self.push
-            }
-        };
-        value
-    }
-    pub fn is_valid(&self, offset_type: UniformMemberBlock, stage: BindingStage) -> bool {
-        let value = self.location(offset_type);
-        let mut validity = false;
-        if stage.contains(BindingStage::FRAGMENT) {
-            validity = validity || value.is_some_and(|f| f.fragment >= 0);
-        }
-        if stage.contains(BindingStage::VERTEX) {
-            validity = validity || value.is_some_and(|f| f.vertex >= 0);
-        }
-        validity
     }
 }
 
@@ -97,7 +81,11 @@ where
 }
 
 impl BindUniform<VariableLocation, &[f32; 4]> for GlUniformBinder {
-    fn bind_uniform(block: UniformMemberBlock, vec4: &[f32; 4], location: VariableLocation) -> Option<()> {
+    fn bind_uniform(
+        block: UniformMemberBlock,
+        vec4: &[f32; 4],
+        location: VariableLocation,
+    ) -> Option<()> {
         if let Some(location) = location.location(block)
             && location.bindable()
         {
@@ -117,7 +105,11 @@ impl BindUniform<VariableLocation, &[f32; 4]> for GlUniformBinder {
 }
 
 impl BindUniform<VariableLocation, &[f32; 16]> for GlUniformBinder {
-    fn bind_uniform(block: UniformMemberBlock, mat4: &[f32; 16], location: VariableLocation) -> Option<()> {
+    fn bind_uniform(
+        block: UniformMemberBlock,
+        mat4: &[f32; 16],
+        location: VariableLocation,
+    ) -> Option<()> {
         if let Some(location) = location.location(block)
             && location.bindable()
         {

librashader-runtime-gl/src/filter_chain/filter_impl.rs

@@ -17,7 +17,7 @@ use librashader_reflect::back::targets::GLSL;
 use librashader_reflect::back::{CompileReflectShader, CompileShader};
 use librashader_reflect::front::GlslangCompilation;
 use librashader_reflect::reflect::semantics::{
-    MemberOffset, ShaderSemantics, TextureSemantics, UniformBinding, UniformMeta,
+    ShaderSemantics, TextureSemantics, UniformBinding, UniformMeta,
 };
 
 use librashader_reflect::reflect::presets::{CompilePresetTarget, ShaderPassArtifact};
@@ -53,7 +53,6 @@ pub struct FilterMutable {
 
 impl<T: GLInterface> FilterChainImpl<T> {
     fn reflect_uniform_location(pipeline: GLuint, meta: &impl UniformMeta) -> VariableLocation {
-
         let mut location = VariableLocation {
             ubo: None,
             push: None,

librashader-runtime-gl/src/filter_pass.rs

@@ -1,4 +1,4 @@
-use gl::types::{GLint, GLsizei, GLuint};
+use gl::types::{GLsizei, GLuint};
 use librashader_reflect::back::cross::CrossGlslContext;
 use librashader_reflect::back::ShaderCompilerOutput;
 use librashader_reflect::reflect::ShaderReflection;

librashader-runtime-vk/src/filter_chain.rs

@@ -149,7 +149,7 @@ struct FrameResiduals {
     device: ash::Device,
     image_views: Vec<vk::ImageView>,
     owned: Vec<OwnedImage>,
-    framebuffers: Vec<Option<vk::Framebuffer>>
+    framebuffers: Vec<Option<vk::Framebuffer>>,
 }
 
 impl FrameResiduals {
@@ -232,8 +232,15 @@ impl FilterChainVulkan {
         }
 
         // initialize passes
-        let filters = Self::init_passes(&device, passes, &semantics, frames_in_flight, options
+        let filters = Self::init_passes(
-            .map(|o| o.render_pass_format).unwrap_or(vk::Format::UNDEFINED))?;
+            &device,
+            passes,
+            &semantics,
+            frames_in_flight,
+            options
+                .map(|o| o.render_pass_format)
+                .unwrap_or(vk::Format::UNDEFINED),
+        )?;
 
         let luts = FilterChainVulkan::load_luts(&device, &preset.textures)?;
         let samplers = SamplerSet::new(&device.device)?;
@@ -348,7 +355,7 @@ impl FilterChainVulkan {
                 &spirv_words,
                 &reflection,
                 frames_in_flight,
-                render_pass_format
+                render_pass_format,
             )?;
 
             // let ubo_ring = VkUboRing::new(

librashader-runtime-vk/src/filter_pass.rs

@@ -132,7 +132,9 @@ impl FilterPass {
 
         output.output.begin_pass(cmd);
 
-        let residual = self.graphics_pipeline.begin_rendering(&parent.device, output, cmd)?;
+        let residual = self
+            .graphics_pipeline
+            .begin_rendering(&parent.device, output, cmd)?;
 
         unsafe {
             parent.device.cmd_bind_pipeline(

librashader-runtime-vk/src/hello_triangle/vulkan_base.rs

@@ -2,7 +2,7 @@ use ash::vk;
 
 use crate::error::FilterChainError;
 use crate::filter_chain::VulkanObjects;
-use crate::hello_triangle::debug::VulkanDebug;
+
 use crate::hello_triangle::physicaldevice::{find_queue_family, pick_physical_device};
 
 use ash::prelude::VkResult;
@@ -76,7 +76,7 @@ impl VulkanBase {
         instance: &ash::Instance,
         physical_device: &vk::PhysicalDevice,
     ) -> VkResult<(ash::Device, vk::Queue)> {
-        let debug = [unsafe { CStr::from_bytes_with_nul_unchecked(KHRONOS_VALIDATION).as_ptr() }];
+        let _debug = [unsafe { CStr::from_bytes_with_nul_unchecked(KHRONOS_VALIDATION).as_ptr() }];
 
         let indices = find_queue_family(instance, *physical_device);
         let queue_info = [vk::DeviceQueueCreateInfo::builder()

librashader-runtime-vk/src/lib.rs

@@ -34,10 +34,10 @@ mod render_pass;
 
 #[cfg(test)]
 mod tests {
-    use ash::vk;
     use crate::filter_chain::FilterChainVulkan;
     use crate::hello_triangle::vulkan_base::VulkanBase;
     use crate::options::FilterChainOptionsVulkan;
+    use ash::vk;
 
     #[test]
     fn triangle_vk() {

librashader-runtime-vk/src/options.rs

@@ -24,5 +24,5 @@ pub struct FilterChainOptionsVulkan {
     /// will be used instead of a render pass. If this is set to some format, the render passes
     /// will be created with such format. It is recommended if possible to use dynamic rendering,
     /// because render-pass mode will create new framebuffers per pass.
-    pub render_pass_format: vk::Format
+    pub render_pass_format: vk::Format,
 }

librashader-runtime-vk/src/render_pass.rs

@@ -10,10 +10,7 @@ pub struct VulkanRenderPass {
 }
 
 impl VulkanRenderPass {
-    pub fn create_render_pass(
+    pub fn create_render_pass(device: &ash::Device, format: vk::Format) -> error::Result<Self> {
-        device: &ash::Device,
-        mut format: vk::Format,
-    ) -> error::Result<Self> {
         // format should never be undefined.
         let attachment = [vk::AttachmentDescription::builder()
             .flags(vk::AttachmentDescriptionFlags::empty())

librashader-runtime-vk/src/vulkan_state.rs

@@ -1,14 +1,12 @@
 use crate::{error, util};
 use ash::vk;
 
+use crate::render_pass::VulkanRenderPass;
+use crate::render_target::RenderTarget;
 use librashader_reflect::back::ShaderCompilerOutput;
 use librashader_reflect::reflect::semantics::{TextureBinding, UboReflection};
 use librashader_reflect::reflect::ShaderReflection;
 use std::ffi::CStr;
-use crate::framebuffer::OutputImage;
-use crate::render_target::RenderTarget;
-use crate::render_pass::VulkanRenderPass;
-
 
 const ENTRY_POINT: &CStr = unsafe { CStr::from_bytes_with_nul_unchecked(b"main\0") };
 
@@ -177,7 +175,7 @@ impl Drop for VulkanShaderModule {
 pub struct VulkanGraphicsPipeline {
     pub layout: PipelineLayoutObjects,
     pub pipeline: vk::Pipeline,
-    pub render_pass: Option<VulkanRenderPass>
+    pub render_pass: Option<VulkanRenderPass>,
 }
 
 impl VulkanGraphicsPipeline {
@@ -187,7 +185,7 @@ impl VulkanGraphicsPipeline {
         shader_assembly: &ShaderCompilerOutput<Vec<u32>>,
         reflection: &ShaderReflection,
         replicas: u32,
-        render_pass_format: vk::Format
+        render_pass_format: vk::Format,
     ) -> error::Result<VulkanGraphicsPipeline> {
         let pipeline_layout = PipelineLayoutObjects::new(reflection, replicas, device)?;
 
@@ -300,7 +298,10 @@ impl VulkanGraphicsPipeline {
 
         let mut render_pass = None;
         if render_pass_format != vk::Format::UNDEFINED {
-            render_pass = Some(VulkanRenderPass::create_render_pass(&device, render_pass_format)?);
+            render_pass = Some(VulkanRenderPass::create_render_pass(
+                device,
+                render_pass_format,
+            )?);
             pipeline_info = pipeline_info.render_pass(render_pass.as_ref().unwrap().handle)
         }
 
@@ -322,7 +323,12 @@ impl VulkanGraphicsPipeline {
     }
 
     #[inline(always)]
-    pub(crate) fn begin_rendering(&self, device: &ash::Device, output: &RenderTarget, cmd: vk::CommandBuffer) -> error::Result<Option<vk::Framebuffer>>{
+    pub(crate) fn begin_rendering(
+        &self,
+        device: &ash::Device,
+        output: &RenderTarget,
+        cmd: vk::CommandBuffer,
+    ) -> error::Result<Option<vk::Framebuffer>> {
         if let Some(render_pass) = &self.render_pass {
             let attachments = [output.output.image_view];
             let framebuffer = unsafe {
@@ -340,8 +346,8 @@ impl VulkanGraphicsPipeline {
 
             let clear_values = [vk::ClearValue {
                 color: vk::ClearColorValue {
-                    float32: [0.0, 0.0, 0.0, 0.0]
+                    float32: [0.0, 0.0, 0.0, 0.0],
-                }
+                },
             }];
 
             let render_pass_info = vk::RenderPassBeginInfo::builder()
@@ -350,12 +356,10 @@ impl VulkanGraphicsPipeline {
                 .clear_values(&clear_values)
                 // always render into the full output, regardless of viewport settings.
                 .render_area(vk::Rect2D {
-                    offset: vk::Offset2D {
+                    offset: vk::Offset2D { x: 0, y: 0 },
-                        x: 0,
-                        y: 0,
-                    },
                     extent: output.output.size.into(),
-                }).build();
+                })
+                .build();
             unsafe {
                 device.cmd_begin_render_pass(cmd, &render_pass_info, vk::SubpassContents::INLINE);
             }
@@ -382,7 +386,6 @@ impl VulkanGraphicsPipeline {
             }
             Ok(None)
         }
-
     }
 
     pub(crate) fn end_rendering(&self, device: &ash::Device, cmd: vk::CommandBuffer) {

librashader-runtime/src/uniforms.rs

@@ -89,12 +89,8 @@ where
 
     pub(crate) fn buffer(&mut self, ty: UniformMemberBlock) -> &mut [u8] {
         match ty {
-            UniformMemberBlock::Ubo => {
+            UniformMemberBlock::Ubo => self.ubo.deref_mut(),
-                self.ubo.deref_mut()
+            UniformMemberBlock::PushConstant => self.push.deref_mut(),
-            }
-            UniformMemberBlock::PushConstant => {
-                self.push.deref_mut()
-            }
         }
     }
 }
@@ -105,8 +101,7 @@ where
     S: Deref<Target = [u8]> + DerefMut,
 {
     #[inline(always)]
-    fn write_scalar_inner<T: UniformScalar>(buffer: &mut [u8], value: T)
+    fn write_scalar_inner<T: UniformScalar>(buffer: &mut [u8], value: T) {
-    {
         let buffer = bytemuck::cast_slice_mut(buffer);
         buffer[0] = value;
     }
@@ -124,10 +119,7 @@ where
 
             if let Some(offset) = offset.offset(ty) {
                 let buffer = self.buffer(ty);
-                Self::write_scalar_inner(
+                Self::write_scalar_inner(&mut buffer[offset..][..std::mem::size_of::<T>()], value)
-                    &mut buffer[offset..][..std::mem::size_of::<T>()],
-                    value,
-                )
             }
         }
     }
@@ -171,7 +163,6 @@ where
     pub fn bind_vec4(&mut self, offset: MemberOffset, value: impl Into<[f32; 4]>, ctx: C) {
         let vec4 = value.into();
 
-
         for ty in UniformMemberBlock::TYPES {
             if H::bind_uniform(ty, &vec4, ctx).is_some() {
                 continue;