UI rewrite 3rd attempt

interfaces/Crafter.Graphics-ComputeShader.cppm

@@ -0,0 +1,56 @@
+/*
+Crafter®.Graphics
+Copyright (C) 2026 Catcrafts®
+catcrafts.net
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License version 3.0 as published by the Free Software Foundation;
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+module;
+#include "vulkan/vulkan.h"
+export module Crafter.Graphics:ComputeShader;
+import std;
+import :Device;
+
+export namespace Crafter {
+    // Tier 1: thin compute-pipeline wrapper. Owns one VkPipeline created with
+    // VK_PIPELINE_CREATE_2_DESCRIPTOR_HEAP_BIT_EXT (no pipeline layout — the
+    // bindless heap supplies all bindings, push constants travel via
+    // vkCmdPushDataEXT). Use this to dispatch the four standard UI shaders
+    // and any user-authored compute shader that follows the ui-shared.glsl
+    // contract.
+    class ComputeShader {
+    public:
+        VkPipeline pipeline = VK_NULL_HANDLE;
+
+        ComputeShader() = default;
+        ComputeShader(const ComputeShader&) = delete;
+        ComputeShader& operator=(const ComputeShader&) = delete;
+        ComputeShader(ComputeShader&& other) noexcept;
+        ComputeShader& operator=(ComputeShader&& other) noexcept;
+        ~ComputeShader();
+
+        // Loads a SPIR-V compute shader from disk and creates a pipeline that
+        // uses the bindless descriptor-heap binding model.
+        void Load(const std::filesystem::path& spvPath);
+
+        // Bind, push constants (if any), dispatch. Caller computes group counts
+        // and is responsible for any inter-dispatch barriers (UIRenderer::Dispatch
+        // wraps this with the standard write-after-write barrier).
+        void Dispatch(VkCommandBuffer cmd,
+                      const void* push, std::uint32_t pushBytes,
+                      std::uint32_t gx,
+                      std::uint32_t gy = 1,
+                      std::uint32_t gz = 1) const;
+    };
+}