adding base spv interpreter

src/soft/SoftPipeline.zig

@@ -1,6 +1,7 @@
 const std = @import("std");
 const vk = @import("vulkan");
 const base = @import("base");
+const spv = @import("spv");
 
 const VkError = base.VkError;
 const Device = base.Device;

src/soft/SoftShaderModule.zig

@@ -1,6 +1,8 @@
 const std = @import("std");
 const vk = @import("vulkan");
 const base = @import("base");
+const spv = @import("spv");
+const lib = @import("lib.zig");
 
 const VkError = base.VkError;
 const Device = base.Device;
@@ -9,6 +11,7 @@ const Self = @This();
 pub const Interface = base.ShaderModule;
 
 interface: Interface,
+module: spv.Module,
 
 pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.ShaderModuleCreateInfo) VkError!*Self {
     const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
@@ -22,11 +25,22 @@ pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const v
 
     self.* = .{
         .interface = interface,
+        .module = spv.Module.init(
+            allocator,
+            info.p_code[0..@divExact(info.code_size, 4)],
+            .{
+                .use_simd_vectors_specializations = !std.process.hasEnvVarConstant(lib.NO_SHADER_SIMD_ENV_NAME),
+            },
+        ) catch |err| switch (err) {
+            spv.Module.ModuleError.OutOfMemory => return VkError.OutOfHostMemory,
+            else => return VkError.ValidationFailed,
+        },
     };
     return self;
 }
 
 pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
     const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    self.module.deinit(allocator);
     allocator.destroy(self);
 }

src/soft/lib.zig

@@ -40,6 +40,8 @@ pub const VULKAN_VERSION = vk.makeApiVersion(0, 1, 0, 0);
 pub const DRIVER_VERSION = vk.makeApiVersion(0, 0, 0, 1);
 pub const DEVICE_ID = 0x600DCAFE;
 
+pub const NO_SHADER_SIMD_ENV_NAME = "STROLL_SOFT_NO_SIMD";
+
 /// Generic system memory.
 pub const MEMORY_TYPE_GENERIC_BIT = 0;