vk: use ubo ring

librashader-runtime-vk/src/filter_chain.rs

@@ -21,6 +21,7 @@ use std::error::Error;
 use std::path::Path;
 use crate::samplers::SamplerSet;
 use crate::texture::VulkanImage;
+use crate::ubo_ring::VkUboRing;
 
 pub struct Vulkan {
     // physical_device: vk::PhysicalDevice,
@@ -253,12 +254,12 @@ impl FilterChainVulkan {
             let reflection = reflect.reflect(index, semantics)?;
             let spirv_words = reflect.compile(None)?;
 
-            let uniform_storage = UniformStorage::new(
-                reflection
+            let ubo_size = reflection
                 .ubo
                 .as_ref()
                 .map(|ubo| ubo.size as usize)
-                    .unwrap_or(0),
+                .unwrap_or(0);
+            let uniform_storage = UniformStorage::new(ubo_size,
                 reflection
                     .push_constant
                     .as_ref()
@@ -294,6 +295,7 @@ impl FilterChainVulkan {
                 images,
             )?;
 
+            let ubo_ring = VkUboRing::new(&vulkan.device, &vulkan.memory_properties, images as usize, ubo_size)?;
             // shader_vulkan: 2026
             filters.push(FilterPass {
                 device: vulkan.device.clone(),
@@ -304,6 +306,7 @@ impl FilterChainVulkan {
                 source,
                 config,
                 graphics_pipeline,
+                ubo_ring,
             });
         }
 

librashader-runtime-vk/src/filter_pass.rs

@@ -12,6 +12,7 @@ use crate::filter_chain::FilterCommon;
 use crate::rendertarget::RenderTarget;
 use crate::texture::Texture;
 use crate::samplers::{SamplerSet, VulkanSampler};
+use crate::ubo_ring::VkUboRing;
 
 pub struct FilterPass {
     pub device: ash::Device,
@@ -22,6 +23,7 @@ pub struct FilterPass {
     pub source: ShaderSource,
     pub config: ShaderPassConfig,
     pub graphics_pipeline: VulkanGraphicsPipeline,
+    pub ubo_ring: VkUboRing
 }
 
 
@@ -70,6 +72,7 @@ impl FilterPass {
 
         if let Some(ubo) = &self.reflection.ubo {
             // shader_vulkan: 2554 (ra uses uses one big buffer)
+            // itll be simpler for us if we just use a RingBuffer<vk::Buffer> tbh.
         }
     }
 

librashader-runtime-vk/src/lib.rs

@@ -16,6 +16,7 @@ mod vulkan_state;
 mod samplers;
 mod texture;
 mod rendertarget;
+mod ubo_ring;
 
 #[cfg(test)]
 mod tests {

librashader-runtime-vk/src/ubo_ring.rs

@@ -0,0 +1,21 @@
+use ash::vk;
+use librashader_runtime::ringbuffer::{BoxRingBuffer, InlineRingBuffer};
+use crate::error;
+use crate::vulkan_primitives::VulkanBuffer;
+
+pub struct VkUboRing {
+    ring: BoxRingBuffer<VulkanBuffer>,
+}
+
+impl VkUboRing {
+    pub fn new(device: &ash::Device, mem_props: &vk::PhysicalDeviceMemoryProperties, ring_size: usize, buffer_size: usize) -> error::Result<Self> {
+        let mut ring = Vec::new();
+        for _ in 0..ring_size {
+            ring.push(VulkanBuffer::new(device, mem_props, vk::BufferUsageFlags::UNIFORM_BUFFER, buffer_size)?);
+        }
+
+        Ok(VkUboRing {
+            ring: BoxRingBuffer::from_vec(ring)
+        })
+    }
+}