remove Texture public interface from S2

src/s2/renderer.ml

@@ -196,14 +196,12 @@ let draw_geometry ?(instances = 1) { vao; draw_mode; indices } =
 
 type texture = {
   tid : int;
-  tsize : ivec2;
-}
+} [@@unboxed]
 
 type pixel_array = (float, Bigarray.float32_elt, Bigarray.c_layout) Array1.t
 
 let make_texture width height fmt (pixels : pixel_array) =
-  Gl.gen_textures 1 Gl._i32;
-  let tid = Int32.to_int Gl._i32.{0} in
+  let tid = Gl.gen_textures 1 Gl._i32; Int32.to_int Gl._i32.{0} in
   Gl.bind_texture Gl.texture_2d tid;
   (* TODO: configurable *)
   Gl.tex_parameteri Gl.texture_2d Gl.texture_wrap_s Gl.clamp_to_edge;
@@ -213,10 +211,10 @@ let make_texture width height fmt (pixels : pixel_array) =
   Gl.tex_image2d Gl.texture_2d 0 fmt width height 0 fmt Gl.float (`Data pixels);
   Gl.generate_mipmap Gl.texture_2d;
   Gl.bind_texture Gl.texture_2d 0;
-  { tid; tsize = width, height }
+  {tid}
 
 let set_tex : texture set_fn =
-  fun (U l) { tid; _ } ->
+  fun (U l) {tid} ->
   (* TODO: in order to allow multiple textures, there should something like a LRU cache of
      which texture unit each is bound to. *)
   Gl.bind_texture Gl.texture_2d tid;

src/s2/s2.ml

@@ -1,5 +1,4 @@
 module Window = Window
-module Texture = Texture
 module Sprite = Sprite
 module Renderer = struct
   include Renderer
@@ -7,7 +6,6 @@ module Renderer = struct
 end
 module Asset = struct
   include Asset
-  include Texture.Asset
   include Sprite.Asset
 end
 module Sdl = Sdl

src/s2/s2.mli

@@ -14,12 +14,6 @@ module Window : sig
   val event_loop : t -> render:(float -> unit) -> unit
 end
 
-module Texture : sig
-  type t
-  val width : t -> int
-  val height : t -> int
-end
-
 module Sprite : sig
   type t
   type map
@@ -47,6 +41,5 @@ module Asset : sig
 
   val load_file : string -> string
   val load_sexp_conv : string -> (Sexp.t -> 'a) -> 'a
-  val load_texture : string -> Texture.t
   val load_sprite_map : ?dpi:int -> string -> Sprite.map
 end

src/s2/sprite.ml

@@ -74,7 +74,7 @@ module Asset = struct
   let load_sprite_map ?dpi name =
     let tex_path = Format.sprintf "sprites/%s.png" name in
     let map_path = Format.sprintf "sprites/%s.map" name in
-    let texture = Texture.Asset.load_texture tex_path in
+    let texture = Texture.load_texture tex_path in
     let spritemap = Asset.load_sexp_conv map_path (of_sexp ~texture ?dpi) in
     debug (fun m -> m "loaded sprite map %S" name);
     trace (fun m ->

src/s2/texture.ml

@@ -3,9 +3,6 @@ include (val Ohlog.sublogs logger "Texture")
 
 type t = Renderer.texture
 
-let width (t : t) = fst t.tsize
-let height (t : t) = snd t.tsize
-
 let conv_alpha_premultiply ofs_r ofs_g ofs_b ofs_a src width height =
   let dst = Array3.create Float32 C_layout height width 4 in
   for y = 0 to height - 1 do
@@ -63,13 +60,11 @@ let of_surface_free srf =
   with e ->
     Sdl.free_surface srf; raise e
 
-module Asset = struct
-  let load_texture path =
-    trace (fun m -> m "open image %S" path);
-    try
-      match Sdl.Image.load (Asset.absolute_path path) with
-      | Ok srf -> of_surface_free srf
-      | Error (`Msg msg) -> failwith msg
-    with
-      Failure msg -> raise (Asset.Error (path, msg))
-end
+let load_texture path =
+  trace (fun m -> m "open image %S" path);
+  try
+    match Sdl.Image.load (Asset.absolute_path path) with
+    | Ok srf -> of_surface_free srf
+    | Error (`Msg msg) -> failwith msg
+  with
+    Failure msg -> raise (Asset.Error (path, msg))