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167 | with
openGL.Texture,
ada.Strings.unbounded,
ada.Streams.Stream_IO,
ada.unchecked_Deallocation;
package openGL.IO
--
-- Provides I/O functions for openGL.
--
is
subtype Text is ada.Strings.unbounded.unbounded_String;
------------------
-- General Vertex
--
null_Id : constant long_Index_t;
type Vertex is
record
site_Id,
coord_Id,
normal_Id,
weights_Id : long_Index_t;
end record;
type Vertices is array (long_Index_t range <>) of aliased Vertex;
type Vertices_view is access all Vertices;
--------
-- Face
--
type facet_Kind is (Triangle, Quad, Polygon);
type Face (Kind : facet_Kind := Triangle) is
record
case Kind
is
when Triangle => Tri : Vertices (1 .. 3);
when Quad => Quad : Vertices (1 .. 4);
when Polygon => Poly : Vertices_view;
end case;
end record;
type Faces is array (long_Index_t range <>) of Face;
procedure destroy (Self : in out Face);
function Vertices_of (Self : in Face) return Vertices;
procedure set_Vertex_in (Self : in out Face; Which : in long_Index_t;
To : in Vertex);
--------------------
-- Rigging/Skinning
--
type bone_Id is range 0 .. 200;
type bone_Weight is
record
Bone : bone_Id;
Weight : Real;
end record;
type bone_Weights is array (long_Index_t range <>) of bone_Weight;
type bone_Weights_view is access bone_Weights;
type bone_Weights_array is array (long_Index_t range <>) of bone_Weights_view;
---------
-- Views
--
type Sites_view is access all openGL.many_Sites;
type Coords_view is access all openGL.many_Coordinates_2D;
type Normals_view is access all openGL.many_Normals;
type bone_Weights_array_view is access all bone_Weights_array;
type Faces_view is access all IO.Faces;
procedure free is new ada.unchecked_Deallocation (many_Sites, IO.Sites_view);
procedure free is new ada.unchecked_Deallocation (many_Coordinates_2D, IO.Coords_view);
procedure free is new ada.unchecked_Deallocation (many_Normals, IO.Normals_view);
procedure free is new ada.unchecked_Deallocation (IO.Faces, IO.Faces_view);
-----------------
--- General Model
--
type Model is
record
Sites : Sites_view;
Coords : Coords_view;
Normals : Normals_view;
Weights : bone_Weights_array_view;
Faces : Faces_view;
end record;
procedure destroy (Self : in out Model);
--------------
-- Heightmaps
--
type height_Map_view is access all height_Map;
function to_height_Map (image_Filename : in asset_Name;
Scale : in Real := 1.0) return height_Map_view;
----------
-- Images
--
function fetch_Image (Stream : in ada.Streams.Stream_IO.Stream_access;
try_TGA : in Boolean) return openGL.Image;
pragma Obsolescent (fetch_Image, "use 'openGL.Images.fetch_Image' instead");
function to_Image (image_Filename : in asset_Name) return Image;
function to_lucid_Image (image_Filename : in asset_Name) return lucid_Image;
function to_lucid_Image (image_Filename : in asset_Name;
is_Lucid : access Boolean) return lucid_Image;
------------
-- Textures
--
function to_Texture (image_Filename : in asset_Name) return Texture.Object;
---------------
-- Screenshots
--
function current_Frame return Image;
procedure Screenshot (Filename : in String; with_Alpha : in Boolean := False);
--
-- Stores the image of the current, active viewport (in RGB or RGBA Bitmap format).
-----------------
-- Video Capture
--
procedure start_capture (AVI_Name : in String;
frame_Rate : in Positive);
--
-- Prepare for video capture (RGB uncompressed, AVI format).
procedure capture_Frame;
--
-- Captures the current active viewport.
procedure stop_capture;
private
null_Id : constant long_Index_t := 0;
end openGL.IO;
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