gpu: make TextureView an enum with methods

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

gpu/src/TextureView.zig

@@ -1,11 +0,0 @@
-ptr: *anyopaque,
-
-pub const Dimension = enum(u32) {
-    dimension_undef = 0x00000000,
-    dimension_1d = 0x00000001,
-    dimension_2d = 0x00000002,
-    dimension_2d_array = 0x00000003,
-    dimension_cube = 0x00000004,
-    dimension_cube_array = 0x00000005,
-    dimension_3d = 0x00000006,
-};

gpu/src/main.zig

@@ -32,7 +32,7 @@ pub const ShaderModule = @import("shader_module.zig").ShaderModule;
 pub const Surface = @import("surface.zig").Surface;
 pub const SwapChain = @import("swap_chain.zig").SwapChain;
 pub const Texture = @import("texture.zig").Texture;
-pub const TextureView = @import("TextureView.zig");
+pub const TextureView = @import("texture_view.zig").TextureView;
 
 pub const AlphaMode = @import("types.zig").AlphaMode;
 
@@ -60,7 +60,7 @@ test {
     refAllDecls(@import("surface.zig"));
     refAllDecls(@import("swap_chain.zig"));
     refAllDecls(@import("texture.zig"));
-    refAllDecls(@import("TextureView.zig"));
+    refAllDecls(@import("texture_view.zig"));
     refAllDecls(@import("types.zig"));
 }
 

gpu/src/texture_view.zig

@@ -0,0 +1,15 @@
+pub const TextureView = enum(usize) {
+    _,
+
+    pub const none: TextureView = @intToEnum(TextureView, 0);
+
+    pub const Dimension = enum(u32) {
+        dimension_undef = 0x00000000,
+        dimension_1d = 0x00000001,
+        dimension_2d = 0x00000002,
+        dimension_2d_array = 0x00000003,
+        dimension_cube = 0x00000004,
+        dimension_cube_array = 0x00000005,
+        dimension_3d = 0x00000006,
+    };
+};