adding device memory base

src/soft/PhysicalDevice.zig

@@ -37,8 +37,10 @@ pub fn create(allocator: std.mem.Allocator, instance: *const base.Instance) VkEr
     interface.mem_props.memory_types[0] = .{
         .heap_index = 0,
         .property_flags = .{
+            .device_local_bit = true,
             .host_visible_bit = true,
             .host_coherent_bit = true,
+            .host_cached_bit = true,
         },
     };
     interface.mem_props.memory_heap_count = 1;

src/vulkan/Buffer.zig

@@ -0,0 +1,13 @@
+const std = @import("std");
+const vk = @import("vulkan");
+
+const VkError = @import("error_set.zig").VkError;
+const Device = @import("Device.zig");
+
+const Self = @This();
+pub const ObjectType: vk.ObjectType = .buffer;
+
+owner: *const Device,
+size: vk.DeviceSize,
+offset: vk.DeviceSize,
+usage: vk.BufferUsageFlags,

src/vulkan/DeviceMemory.zig

@@ -0,0 +1,37 @@
+const std = @import("std");
+const vk = @import("vulkan");
+
+const VkError = @import("error_set.zig").VkError;
+const Device = @import("Device.zig");
+
+const Self = @This();
+pub const ObjectType: vk.ObjectType = .device_memory;
+
+owner: *const Device,
+size: vk.DeviceSize,
+memory_type_index: u32,
+is_mapped: bool,
+
+vtable: *const VTable,
+
+pub const VTable = struct {
+    map: *const fn (*Self, vk.DeviceSize, vk.DeviceSize) VkError!?*anyopaque,
+    unmap: *const fn (*Self) void,
+};
+
+pub fn init(device: *const Device, size: vk.DeviceSize, memory_type_index: u32) VkError!Self {
+    return .{
+        .owner = device,
+        .size = size,
+        .memory_type_index = memory_type_index,
+        .is_mapped = false,
+    };
+}
+
+pub inline fn map(self: *Self, offset: vk.DeviceSize, size: vk.DeviceSize) VkError!?*anyopaque {
+    return self.vtable.map(self, offset, size);
+}
+
+pub inline fn unmap(self: *Self) void {
+    return self.vtable.unmap(self);
+}

src/vulkan/Dispatchable.zig

@@ -13,30 +13,6 @@ pub fn Dispatchable(comptime T: type) type {
         loader_data: c.VK_LOADER_DATA,
         object_type: vk.ObjectType,
         object: *T,
-        is_owner: bool = false,
-
-        pub fn create(allocator: std.mem.Allocator, args: anytype) VkError!*Self {
-            comptime {
-                const ti = @typeInfo(@TypeOf(args));
-                if (ti != .@"struct" or !ti.@"struct".is_tuple) {
-                    @compileError("pass a tuple literal like .{...}");
-                }
-
-                if (!std.meta.hasMethod(T, "init")) {
-                    @compileError("Dispatchable types are expected to have 'init' and 'deinit' methods.");
-                }
-                const init_params = @typeInfo(@TypeOf(T.init)).@"fn".params;
-                if (init_params.len < 1 or init_params[0].type != std.mem.Allocator) {
-                    @compileError("Dispatchable types 'init' method should take a 'std.mem.Allocator' as its first parameter.");
-                }
-            }
-
-            const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
-            const object = allocator.create(T) catch return VkError.OutOfHostMemory;
-            object.* = try @call(.auto, T.init, .{allocator} ++ args);
-            self.is_owner = true;
-            return self.wrap(object);
-        }
 
         pub fn wrap(allocator: std.mem.Allocator, object: *T) VkError!*Self {
             const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
@@ -48,10 +24,7 @@ pub fn Dispatchable(comptime T: type) type {
             return self;
         }
 
-        pub fn destroy(self: *Self, allocator: std.mem.Allocator) void {
-            if (self.is_owner) {
-                allocator.destroy(self.object);
-            }
+        pub inline fn destroy(self: *Self, allocator: std.mem.Allocator) void {
             allocator.destroy(self);
         }
 

src/vulkan/NonDispatchable.zig

@@ -0,0 +1,51 @@
+const std = @import("std");
+const vk = @import("vulkan");
+
+const VkError = @import("error_set.zig").VkError;
+
+pub fn NonDispatchable(comptime T: type) type {
+    return struct {
+        const Self = @This();
+
+        object_type: vk.ObjectType,
+        object: *T,
+
+        pub fn wrap(allocator: std.mem.Allocator, object: *T) VkError!*Self {
+            const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+            self.* = .{
+                .object_type = T.ObjectType,
+                .object = object,
+            };
+            return self;
+        }
+
+        pub inline fn destroy(self: *Self, allocator: std.mem.Allocator) void {
+            allocator.destroy(self);
+        }
+
+        pub inline fn toHandle(self: *Self) usize {
+            return @intFromPtr(self);
+        }
+
+        pub inline fn toVkHandle(self: *Self, comptime VkT: type) VkT {
+            return @enumFromInt(@intFromPtr(self));
+        }
+
+        pub inline fn fromHandle(vk_handle: anytype) VkError!*Self {
+            const handle = @intFromEnum(vk_handle);
+            if (handle == 0) {
+                return VkError.Unknown;
+            }
+            const nondispatchable: *Self = @ptrFromInt(handle);
+            if (nondispatchable.object_type != T.ObjectType) {
+                return VkError.Unknown;
+            }
+            return nondispatchable;
+        }
+
+        pub inline fn fromHandleObject(handle: anytype) VkError!*T {
+            const nondispatchable_handle = try Self.fromHandle(handle);
+            return nondispatchable_handle.object;
+        }
+    };
+}

src/vulkan/lib.zig

@@ -5,6 +5,7 @@ pub const lib_vulkan = @import("lib_vulkan.zig");
 pub const logger = @import("logger.zig");
 
 pub const Dispatchable = @import("Dispatchable.zig").Dispatchable;
+pub const NonDispatchable = @import("NonDispatchable.zig").NonDispatchable;
 pub const VkError = @import("error_set.zig").VkError;
 
 pub const Instance = @import("Instance.zig");