removing wayland include

src/vulkan/wsi/clients/wayland.zig

@@ -1,29 +1,59 @@
+//! Minimal wayland client protocol declarations and loader
+
 const std = @import("std");
 const vk = @import("vulkan");
 const lib = @import("../../lib.zig");
 
-pub const c = lib.c;
-
 const VkError = lib.VkError;
 
-pub const wl_registry_listener = c.wl_registry_listener;
+pub extern const wl_registry_interface: wl_interface;
+pub extern const wl_shm_pool_interface: wl_interface;
+pub extern const wl_buffer_interface: wl_interface;
 
-pub const WL_SHM_FORMAT_ARGB8888 = c.WL_SHM_FORMAT_ARGB8888;
+pub const wl_registry_listener = extern struct {
+    global: ?*const fn (data: ?*anyopaque, wl_registry: ?*wl_registry, name: u32, interface: [*c]const u8, version: u32) callconv(.c) void = null,
+    global_remove: ?*const fn (data: ?*anyopaque, wl_registry: ?*wl_registry, name: u32) callconv(.c) void = null,
+};
 
-pub const wl_buffer = c.wl_buffer;
-pub const wl_callback = c.wl_buffer;
-pub const wl_interface = c.wl_interface;
-pub const wl_registry = c.wl_registry;
-pub const wl_shm = c.wl_shm;
-pub const wl_shm_pool = c.wl_shm_pool;
-pub const wl_proxy = c.wl_proxy;
+pub const WL_BUFFER_DESTROY = @as(c_int, 0);
+pub const WL_DISPLAY_GET_REGISTRY = @as(c_int, 1);
+pub const WL_REGISTRY_BIND = @as(c_int, 0);
+pub const WL_SHM_CREATE_POOL = @as(c_int, 0);
+pub const WL_SHM_FORMAT_ARGB8888 = @as(c_int, 0);
+pub const WL_SHM_POOL_CREATE_BUFFER = @as(c_int, 0);
+pub const WL_SHM_POOL_DESTROY = @as(c_int, 1);
+pub const WL_SURFACE_ATTACH = @as(c_int, 1);
+pub const WL_SURFACE_COMMIT = @as(c_int, 6);
+pub const WL_SURFACE_DAMAGE = @as(c_int, 2);
 
-// vk.wl_XXX instead of c.wl_XXX to avoid casts with Zig Vulkan bindings functions
+pub const wl_buffer = opaque {};
+pub const wl_callback = opaque {};
+pub const wl_registry = opaque {};
+pub const wl_shm = opaque {};
+pub const wl_shm_pool = opaque {};
+pub const wl_proxy = opaque {};
 pub const wl_display = vk.wl_display;
 pub const wl_surface = vk.wl_surface;
 
+pub const wl_message = extern struct {
+    name: ?[*:0]const u8 = null,
+    signature: [*c]const u8 = null,
+    types: [*c]*const wl_interface = null,
+};
+
+pub const wl_interface = extern struct {
+    name: ?[*:0]const u8 = null,
+    version: c_int = 0,
+    method_count: c_int = 0,
+    methods: ?[*]const wl_message = null,
+    event_count: c_int = 0,
+    events: ?[*]const wl_message = null,
+};
+
 pub var wl_display_dispatch: *const fn (*wl_display) callconv(.c) c_int = undefined;
-pub var wl_proxy_marshal_flags: *const fn (*wl_proxy, u32, *const wl_interface, u32, u32, ...) callconv(.c) ?*wl_proxy = undefined;
+pub var wl_proxy_marshal_flags: *const fn (*wl_proxy, u32, ?*const wl_interface, u32, u32, ...) callconv(.c) ?*wl_proxy = undefined;
+pub var wl_proxy_get_version: *const fn (*wl_proxy) callconv(.c) u32 = undefined;
+pub var wl_proxy_add_listener: *const fn (*wl_proxy, **const fn (void) void, ?*anyopaque) callconv(.c) c_int = undefined;
 pub var wl_display_flush: *const fn (*wl_display) callconv(.c) c_int = undefined;
 
 pub var wl_shm_interface: *wl_interface = undefined;
@@ -45,6 +75,8 @@ pub fn load() VkError!void {
 
     wl_display_dispatch = module.lookup(@TypeOf(wl_display_dispatch), "wl_display_dispatch") orelse return VkError.Unknown;
     wl_proxy_marshal_flags = module.lookup(@TypeOf(wl_proxy_marshal_flags), "wl_proxy_marshal_flags") orelse return VkError.Unknown;
+    wl_proxy_get_version = module.lookup(@TypeOf(wl_proxy_get_version), "wl_proxy_get_version") orelse return VkError.Unknown;
+    wl_proxy_add_listener = module.lookup(@TypeOf(wl_proxy_add_listener), "wl_proxy_add_listener") orelse return VkError.Unknown;
     wl_display_flush = module.lookup(@TypeOf(wl_display_flush), "wl_display_flush") orelse return VkError.Unknown;
 
     wl_shm_interface = module.lookup(*wl_interface, "wl_shm_interface") orelse return VkError.Unknown;
@@ -57,3 +89,118 @@ pub fn unload() void {
         module.close();
     }
 }
+
+pub fn wl_registry_bind(registry: *wl_registry, name: u32, interface: *const wl_interface, version: u32) callconv(.c) ?*wl_proxy {
+    return wl_proxy_marshal_flags(
+        @ptrCast(@alignCast(registry)),
+        WL_REGISTRY_BIND,
+        interface,
+        version,
+        0,
+        name,
+        interface.*.name,
+        version,
+        @as(?*anyopaque, null),
+    );
+}
+
+pub fn wl_display_get_registry(display: *wl_display) callconv(.c) ?*wl_registry {
+    return @ptrCast(@alignCast(wl_proxy_marshal_flags(
+        @ptrCast(@alignCast(display)),
+        WL_DISPLAY_GET_REGISTRY,
+        &wl_registry_interface,
+        wl_proxy_get_version(@ptrCast(@alignCast(display))),
+        0,
+        @as(?*anyopaque, null),
+    )));
+}
+
+pub fn wl_registry_add_listener(registry: *wl_registry, listener: *const wl_registry_listener, data: ?*anyopaque) callconv(.c) c_int {
+    return wl_proxy_add_listener(@ptrCast(@alignCast(registry)), @ptrCast(@alignCast(@constCast(listener))), data);
+}
+
+pub fn wl_shm_create_pool(shm: *wl_shm, fd: i32, size: i32) callconv(.c) ?*wl_shm_pool {
+    return @ptrCast(@alignCast(wl_proxy_marshal_flags(
+        @ptrCast(@alignCast(shm)),
+        WL_SHM_CREATE_POOL,
+        &wl_shm_pool_interface,
+        wl_proxy_get_version(@ptrCast(@alignCast(shm))),
+        0,
+        @as(?*anyopaque, null),
+        fd,
+        size,
+    )));
+}
+
+pub fn wl_shm_pool_destroy(shm_pool: *wl_shm_pool) callconv(.c) void {
+    _ = wl_proxy_marshal_flags(
+        @ptrCast(@alignCast(shm_pool)),
+        WL_SHM_POOL_DESTROY,
+        null,
+        wl_proxy_get_version(@ptrCast(@alignCast(shm_pool))),
+        @bitCast(@as(c_int, @as(c_int, 1) << @intCast(@as(c_int, 0)))),
+    );
+}
+
+pub fn wl_shm_pool_create_buffer(shm_pool: *wl_shm_pool, offset: i32, width: i32, height: i32, stride: i32, format: u32) callconv(.c) ?*wl_buffer {
+    return @ptrCast(@alignCast(wl_proxy_marshal_flags(
+        @ptrCast(@alignCast(shm_pool)),
+        WL_SHM_POOL_CREATE_BUFFER,
+        &wl_buffer_interface,
+        wl_proxy_get_version(@ptrCast(@alignCast(shm_pool))),
+        0,
+        @as(?*anyopaque, null),
+        offset,
+        width,
+        height,
+        stride,
+        format,
+    )));
+}
+
+pub fn wl_buffer_destroy(buffer: *wl_buffer) callconv(.c) void {
+    _ = wl_proxy_marshal_flags(
+        @ptrCast(@alignCast(buffer)),
+        WL_BUFFER_DESTROY,
+        null,
+        wl_proxy_get_version(@ptrCast(@alignCast(buffer))),
+        @bitCast(@as(c_int, @as(c_int, 1) << @intCast(@as(c_int, 0)))),
+    );
+}
+
+pub fn wl_surface_attach(surface: *wl_surface, buffer: *wl_buffer, x: i32, y: i32) callconv(.c) void {
+    _ = wl_proxy_marshal_flags(
+        @ptrCast(@alignCast(surface)),
+        WL_SURFACE_ATTACH,
+        null,
+        wl_proxy_get_version(@ptrCast(@alignCast(surface))),
+        0,
+        buffer,
+        x,
+        y,
+    );
+}
+
+pub fn wl_surface_damage(surface: *wl_surface, x: i32, y: i32, width: i32, height: i32) callconv(.c) void {
+    _ = wl_proxy_marshal_flags(
+        @ptrCast(@alignCast(surface)),
+        WL_SURFACE_DAMAGE,
+        null,
+        wl_proxy_get_version(@ptrCast(@alignCast(surface))),
+        0,
+        x,
+        y,
+        width,
+        height,
+    );
+}
+
+pub fn wl_surface_commit(surface: *wl_surface) callconv(.c) void {
+    _ = wl_proxy_marshal_flags(
+        @ptrCast(@alignCast(surface)),
+        WL_SURFACE_COMMIT,
+        null,
+        wl_proxy_get_version(@ptrCast(@alignCast(surface))),
+        0,
+    );
+}