Continue vulkan c++ tutorial

src/vulkan/mod.rs

@@ -17,3 +17,4 @@ pub(self) mod vk_swapchain;
 pub use vk_swapchain::VkSwapchain;
 
 mod utils;
+mod vk_shader_module;

src/vulkan/vk_render_context.rs

@@ -1,5 +1,8 @@
+use crate::vulkan::vk_shader_module::VkShaderModule;
 use crate::vulkan::{VkDevice, VkInstance, VkPhysicalDevice, VkSurface, VkSwapchain};
 use ash::vk;
+use ash::vk::PrimitiveTopology;
+use std::ffi::{CStr, CString};
 use std::sync::Arc;
 
 pub struct VkRenderContext {
@@ -57,6 +60,69 @@ impl VkRenderContext {
             &physical_device,
         )?);
 
+        let shader_entry_name = CStr::from_bytes_with_nul(b"main\0")?;
+
+        let vert_shader_module =
+            VkShaderModule::from_spv_file(device.clone(), "res/shaders/main.vert.spv")?;
+
+        let vert_shader_info = vk::PipelineShaderStageCreateInfo::default()
+            .module(vert_shader_module.handle)
+            .name(shader_entry_name)
+            .stage(vk::ShaderStageFlags::VERTEX);
+
+        let frag_shader_module =
+            VkShaderModule::from_spv_file(device.clone(), "res/shaders/main.frag.spv")?;
+
+        let frag_shader_info = vk::PipelineShaderStageCreateInfo::default()
+            .module(frag_shader_module.handle)
+            .name(shader_entry_name)
+            .stage(vk::ShaderStageFlags::FRAGMENT);
+
+        let shader_stage_create_infos = [vert_shader_info, frag_shader_info];
+
+        let vertex_input_info = vk::PipelineVertexInputStateCreateInfo::default();
+
+        let input_assembly = vk::PipelineInputAssemblyStateCreateInfo::default()
+            .topology(PrimitiveTopology::TRIANGLE_LIST);
+
+        let viewport = vk::Viewport::default()
+            .width(swapchain.surface_resolution.width as f32)
+            .height(swapchain.surface_resolution.height as f32)
+            .max_depth(1.0);
+
+        let scissor = vk::Rect2D::default().extent(swapchain.surface_resolution);
+
+        let viewport_state = vk::PipelineViewportStateCreateInfo::default()
+            .viewports(&[viewport])
+            .scissors(&[scissor]);
+
+        let rasterizer = vk::PipelineRasterizationStateCreateInfo::default()
+            .polygon_mode(vk::PolygonMode::FILL)
+            .cull_mode(vk::CullModeFlags::BACK)
+            .front_face(vk::FrontFace::CLOCKWISE);
+
+        let multisampling = vk::PipelineMultisampleStateCreateInfo::default()
+            .rasterization_samples(vk::SampleCountFlags::TYPE_1)
+            .min_sample_shading(1.0);
+
+        let color_blend_attachment = vk::PipelineColorBlendAttachmentState::default()
+            .color_write_mask(vk::ColorComponentFlags::RGBA);
+
+        let color_blending =
+            vk::PipelineColorBlendStateCreateInfo::default().attachments(&[color_blend_attachment]);
+
+        let dynamic_state = vk::PipelineDynamicStateCreateInfo::default()
+            .dynamic_states(&[vk::DynamicState::VIEWPORT, vk::DynamicState::LINE_WIDTH]);
+
+        let pipeline_layout_info = vk::PipelineLayoutCreateInfo::default();
+        let pipeline_layout = unsafe {
+            device
+                .handle
+                .create_pipeline_layout(&pipeline_layout_info, None)?
+        };
+
+        unsafe { device.handle.destroy_pipeline_layout(pipeline_layout, None) };
+
         // let present_queue = device.get_device_queue(0);
         //
         // let pool_create_info = vk::CommandPoolCreateInfo::default()

src/vulkan/vk_shader_module.rs

@@ -0,0 +1,42 @@
+use crate::vulkan::VkDevice;
+use ash::vk;
+use std::path::Path;
+use std::sync::Arc;
+
+pub struct VkShaderModule {
+    device: Arc<VkDevice>,
+
+    pub(super) handle: vk::ShaderModule,
+}
+
+impl VkShaderModule {
+    pub fn from_spv_file<P: AsRef<Path>>(device: Arc<VkDevice>, path: P) -> anyhow::Result<Self> {
+        let mut file = std::fs::File::open(&path)?;
+        let frag_shader_str = ash::util::read_spv(&mut file)?;
+
+        let shader_create_info = vk::ShaderModuleCreateInfo::default().code(&frag_shader_str);
+        let shader_module = unsafe {
+            device
+                .handle
+                .create_shader_module(&shader_create_info, None)?
+        };
+        log::debug!(
+            "Shader module created ({shader_module:?}) from {:?}",
+            path.as_ref()
+        );
+
+        Ok(Self {
+            device,
+            handle: shader_module,
+        })
+    }
+}
+
+impl Drop for VkShaderModule {
+    fn drop(&mut self) {
+        unsafe {
+            self.device.handle.destroy_shader_module(self.handle, None);
+            log::debug!("Shader module destroyed ({:?})", self.handle);
+        }
+    }
+}