custom shader webgpu

implementations/Crafter.Graphics-WebGPUComputeShader.cpp

@@ -0,0 +1,41 @@
+/*
+Crafter®.Graphics
+Copyright (C) 2026 Catcrafts®
+catcrafts.net
+*/
+
+module Crafter.Graphics:WebGPUComputeShader_impl;
+import :WebGPUComputeShader;
+import :WebGPU;
+import std;
+
+using namespace Crafter;
+
+void WebGPUComputeShader::Load(std::string_view wgsl,
+                               std::span<const UICustomBinding> bindings) {
+    customBindings.assign(bindings.begin(), bindings.end());
+    pipelineHandle = WebGPU::wgpuLoadCustomShader(
+        wgsl.data(),
+        static_cast<std::int32_t>(wgsl.size()),
+        customBindings.data(),
+        static_cast<std::int32_t>(customBindings.size())
+    );
+}
+
+void WebGPUComputeShader::Load(const std::filesystem::path& wgslPath,
+                               std::span<const UICustomBinding> bindings) {
+    std::ifstream f(wgslPath, std::ios::binary | std::ios::ate);
+    if (!f.is_open()) {
+        std::println("WebGPUComputeShader::Load: cannot open {}", wgslPath.string());
+        return;
+    }
+    auto size = f.tellg();
+    if (size <= 0) {
+        std::println("WebGPUComputeShader::Load: empty file {}", wgslPath.string());
+        return;
+    }
+    f.seekg(0, std::ios::beg);
+    std::string src(static_cast<std::size_t>(size), '\0');
+    f.read(src.data(), size);
+    Load(std::string_view{src}, bindings);
+}