working on device

src/soft/PhysicalDevice.zig

@@ -20,6 +20,20 @@ pub fn init(instance: *const base.Instance, allocator: std.mem.Allocator) !*disp
     base_physical_device.props.device_id = root.DEVICE_ID;
     base_physical_device.props.device_type = .cpu;
 
+    base_physical_device.mem_props.memory_type_count = 1;
+    base_physical_device.mem_props.memory_types[0] = .{
+        .heap_index = 0,
+        .property_flags = .{
+            .host_visible_bit = true,
+            .host_coherent_bit = true,
+        },
+    };
+    base_physical_device.mem_props.memory_heap_count = 1;
+    base_physical_device.mem_props.memory_heaps[0] = .{
+        .size = std.process.totalSystemMemory() catch 0,
+        .flags = .{}, // Host memory
+    };
+
     const info = try cpuinfo.get(allocator);
     defer info.deinit(allocator);
 

src/soft/lib.zig

@@ -3,6 +3,7 @@ const vk = @import("vulkan");
 const base = @import("base");
 
 const Instance = @import("Instance.zig");
+const PhysicalDevice = @import("PhysicalDevice.zig");
 
 pub const VULKAN_VERSION = vk.makeApiVersion(0, 1, 0, 0);
 pub const DRIVER_VERSION = vk.makeApiVersion(0, 0, 0, 1);
@@ -11,4 +12,5 @@ pub const DEVICE_ID = 0x600DCAFE;
 comptime {
     _ = base;
     _ = Instance;
+    _ = PhysicalDevice;
 }

src/vulkan/Device.zig

@@ -0,0 +1,15 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const Self = @This();
+pub const ObjectType: vk.ObjectType = .device;
+
+physical_device: *const PhysicalDevice,
+dispatch_table: DispatchTable,
+driver_data: ?*anyopaque,
+
+pub const DispatchTable = struct {};
+
+pub fn createImplDevice(physical_device: *base.PhysicalDevice, infos: vk.DeviceCreateInfo, allocator: std.mem.Allocator) !*anyopaque {
+}

src/vulkan/Instance.zig

@@ -4,6 +4,7 @@ const root = @import("lib.zig");
 const dispatchable = @import("dispatchable.zig");
 const VulkanAllocator = @import("VulkanAllocator.zig");
 const PhysicalDevice = @import("PhysicalDevice.zig");
+const Dispatchable = dispatchable.Dispatchable;
 
 extern fn __vkImplInstanceInit(*Self, *const std.mem.Allocator) ?*anyopaque;
 
@@ -17,9 +18,6 @@ driver_data: ?*anyopaque,
 
 pub const DispatchTable = struct {
     destroyInstance: ?*const fn (*const Self, std.mem.Allocator) anyerror!void = null,
-    enumerateInstanceVersion: ?vk.PfnEnumerateInstanceVersion = null,
-    //enumerateInstanceLayerProperties: vk.PfnEnumerateInstanceProperties = null,
-    enumerateInstanceExtensionProperties: ?vk.PfnEnumerateInstanceExtensionProperties = null,
 };
 
 pub fn create(p_infos: ?*const vk.InstanceCreateInfo, callbacks: ?*const vk.AllocationCallbacks, p_instance: *vk.Instance) callconv(vk.vulkan_call_conv) vk.Result {
@@ -32,7 +30,7 @@ pub fn create(p_infos: ?*const vk.InstanceCreateInfo, callbacks: ?*const vk.Allo
 
     const allocator = VulkanAllocator.init(deref_callbacks, .instance).allocator();
 
-    const dispatchable_instance = dispatchable.Dispatchable(Self).create(allocator) catch return .error_out_of_host_memory;
+    const dispatchable_instance = Dispatchable(Self).create(allocator) catch return .error_out_of_host_memory;
     const self = dispatchable_instance.object;
     self.dispatch_table = .{};
 
@@ -76,7 +74,6 @@ pub fn getProcAddr(name: []const u8) vk.PfnVoidFunction {
     const pfn_map = std.StaticStringMap(vk.PfnVoidFunction).init([_]KV{
         .{ "vkDestroyInstance", @ptrCast(&destroy) },
         .{ "vkEnumeratePhysicalDevices", @ptrCast(&enumeratePhysicalDevices) },
-        //.{ "vkGetPhysicalDeviceProperties", @ptrCast(self.dispatch_table.getPhysicalDeviceProperties) },
     }, allocator) catch return null;
     defer pfn_map.deinit(allocator);
 

src/vulkan/PhysicalDevice.zig

@@ -2,20 +2,27 @@ const std = @import("std");
 const vk = @import("vulkan");
 const root = @import("lib.zig");
 const Instance = @import("Instance.zig");
+const Device = @import("Device.zig");
 const dispatchable = @import("dispatchable.zig");
+const VulkanAllocator = @import("VulkanAllocator.zig");
+
+const Dispatchable = dispatchable.Dispatchable;
 
 const Self = @This();
 pub const ObjectType: vk.ObjectType = .physical_device;
 
 props: vk.PhysicalDeviceProperties,
+mem_props: vk.PhysicalDeviceMemoryProperties,
 instance: *const Instance,
 dispatch_table: DispatchTable,
 driver_data: ?*anyopaque,
 
-pub const DispatchTable = struct {};
+pub const DispatchTable = struct {
+    createImplDevice: ?*const fn (*Self, vk.DeviceCreateInfo, std.mem.Allocator) anyerror!?*anyopaque,
+};
 
-pub fn init(instance: *const Instance, allocator: std.mem.Allocator) !*dispatchable.Dispatchable(Self) {
-    const dispatchable_physical_device = try dispatchable.Dispatchable(Self).create(allocator);
+pub fn init(instance: *const Instance, allocator: std.mem.Allocator) !*Dispatchable(Self) {
+    const dispatchable_physical_device = try Dispatchable(Self).create(allocator);
     errdefer dispatchable_physical_device.destroy(allocator);
 
     const self = dispatchable_physical_device.object;
@@ -32,6 +39,13 @@ pub fn init(instance: *const Instance, allocator: std.mem.Allocator) !*dispatcha
         .sparse_properties = undefined,
     };
 
+    self.mem_props = .{
+        .memory_type_count = 0,
+        .memory_types = undefined,
+        .memory_heap_count = 0,
+        .memory_heaps = undefined,
+    };
+
     self.driver_data = null;
     self.instance = instance;
     self.dispatch_table = .{};
@@ -39,17 +53,50 @@ pub fn init(instance: *const Instance, allocator: std.mem.Allocator) !*dispatcha
     return dispatchable_physical_device;
 }
 
+pub fn createDevice(p_physical_device: vk.PhysicalDevice, p_infos: ?*const vk.DeviceCreateInfo, callbacks: ?*const vk.AllocationCallbacks, p_device: *vk.Device) callconv(vk.vulkan_call_conv) vk.Result {
+    const infos = p_infos orelse return .error_initialization_failed;
+    if (infos.s_type != .device_create_info) {
+        return .error_initialization_failed;
+    }
+
+    const self = dispatchable.fromHandleObject(Self, @intFromEnum(p_physical_device)) catch return .error_unknown;
+
+    const deref_callbacks = if (callbacks) |c| c.* else null;
+
+    const allocator = VulkanAllocator.init(deref_callbacks, .instance).allocator();
+
+    const dispatchable_device = Dispatchable(Device).create(allocator) catch return .error_out_of_host_memory;
+    const device = dispatchable_device.object;
+    device.dispatch_table = .{};
+
+    if (self.dispatch_table.createImplDevice) |pfnCreateImplDevice| {
+        device.driver_data = pfnCreateImplDevice(self, infos, allocator) catch return .error_initialization_failed;
+    } else if (std.process.hasEnvVar(allocator, root.DRIVER_LOGS_ENV_NAME) catch false) {
+        std.log.scoped(.vkCreateDevice).warn("Missing dispatch implementation", .{});
+    }
+
+    p_device.* = @enumFromInt(dispatchable_device.toHandle());
+    return .success;
+}
+
 pub fn getProperties(p_physical_device: vk.PhysicalDevice, properties: *vk.PhysicalDeviceProperties) callconv(vk.vulkan_call_conv) void {
     const self = dispatchable.fromHandleObject(Self, @intFromEnum(p_physical_device)) catch return;
     properties.* = self.props;
 }
 
+pub fn getMemoryProperties(p_physical_device: vk.PhysicalDevice, properties: *vk.PhysicalDeviceMemoryProperties) callconv(vk.vulkan_call_conv) void {
+    const self = dispatchable.fromHandleObject(Self, @intFromEnum(p_physical_device)) catch return;
+    properties.* = self.mem_props;
+}
+
 pub fn getProcAddr(name: []const u8) vk.PfnVoidFunction {
     const allocator = std.heap.c_allocator;
 
     const KV = struct { []const u8, vk.PfnVoidFunction };
     const pfn_map = std.StaticStringMap(vk.PfnVoidFunction).init([_]KV{
+        .{ "vkCreateDevice", @ptrCast(&createDevice) },
         .{ "vkGetPhysicalDeviceProperties", @ptrCast(&getProperties) },
+        .{ "vkGetPhysicalDeviceMemoryProperties", @ptrCast(&getMemoryProperties) },
     }, allocator) catch return null;
     defer pfn_map.deinit(allocator);
 

src/vulkan/lib.zig

@@ -7,6 +7,7 @@ pub const dispatchable = @import("dispatchable.zig");
 pub const Instance = @import("Instance.zig");
 pub const PhysicalDevice = @import("PhysicalDevice.zig");
 pub const VulkanAllocator = @import("VulkanAllocator.zig");
+pub const Device = @import("Device.zig");
 
 pub const VULKAN_VENDOR_ID = @typeInfo(vk.VendorId).@"enum".fields[@typeInfo(vk.VendorId).@"enum".fields.len - 1].value + 1;
 pub const DRIVER_LOGS_ENV_NAME = "DRIVER_LOGS";
@@ -40,11 +41,11 @@ const global_pfn_map = std.StaticStringMap(vk.PfnVoidFunction).initComptime(.{
     .{ "vkCreateInstance", @as(vk.PfnVoidFunction, @ptrCast(&Instance.create)) },
 });
 
-pub export fn vkGetInstanceProcAddr(p_instance: vk.Instance, pName: ?[*:0]const u8) callconv(vk.vulkan_call_conv) vk.PfnVoidFunction {
-    if (pName == null) {
+pub export fn vkGetInstanceProcAddr(p_instance: vk.Instance, p_name: ?[*:0]const u8) callconv(vk.vulkan_call_conv) vk.PfnVoidFunction {
+    if (p_name == null) {
         return null;
     }
-    const name = std.mem.span(pName.?);
+    const name = std.mem.span(p_name.?);
     return icd.getInstanceProcAddr(global_pfn_map, p_instance, name);
 }
 

test/c/main.c

@@ -45,6 +45,7 @@ int main(void)
 	#define VULKAN_INSTANCE_FUNCTION(fn) PFN_##fn fn = (PFN_##fn)vkGetInstanceProcAddr(instance, #fn);
 	VULKAN_INSTANCE_FUNCTION(vkEnumeratePhysicalDevices)
 	VULKAN_INSTANCE_FUNCTION(vkGetPhysicalDeviceProperties)
+	VULKAN_INSTANCE_FUNCTION(vkGetPhysicalDeviceMemoryProperties)
 	VULKAN_INSTANCE_FUNCTION(vkDestroyInstance)
 
 	uint32_t count;