render: implement a vulkan renderer

src/gfx_apis/vulkan/sampler.rs

@@ -0,0 +1,42 @@
+use {
+    crate::gfx_apis::vulkan::{device::VulkanDevice, VulkanError},
+    ash::vk::{
+        BorderColor, Filter, Sampler, SamplerAddressMode, SamplerCreateInfo, SamplerMipmapMode,
+    },
+    std::rc::Rc,
+};
+
+pub struct VulkanSampler {
+    pub(super) device: Rc<VulkanDevice>,
+    pub(super) sampler: Sampler,
+}
+
+impl VulkanDevice {
+    pub(super) fn create_sampler(self: &Rc<Self>) -> Result<Rc<VulkanSampler>, VulkanError> {
+        let create_info = SamplerCreateInfo::builder()
+            .mag_filter(Filter::LINEAR)
+            .min_filter(Filter::LINEAR)
+            .mipmap_mode(SamplerMipmapMode::NEAREST)
+            .address_mode_u(SamplerAddressMode::REPEAT)
+            .address_mode_v(SamplerAddressMode::REPEAT)
+            .address_mode_w(SamplerAddressMode::REPEAT)
+            .max_anisotropy(1.0)
+            .min_lod(0.0)
+            .max_lod(0.25)
+            .border_color(BorderColor::FLOAT_TRANSPARENT_BLACK);
+        let sampler = unsafe { self.device.create_sampler(&create_info, None) };
+        let sampler = sampler.map_err(VulkanError::CreateSampler)?;
+        Ok(Rc::new(VulkanSampler {
+            device: self.clone(),
+            sampler,
+        }))
+    }
+}
+
+impl Drop for VulkanSampler {
+    fn drop(&mut self) {
+        unsafe {
+            self.device.device.destroy_sampler(self.sampler, None);
+        }
+    }
+}