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171 | ------------------------------------------------------------------------------
-- --
-- tiled-code-gen --
-- --
-- Copyright (C) 2018 Fabien Chouteau --
-- --
-- --
-- Redistribution and use in source and binary forms, with or without --
-- modification, are permitted provided that the following conditions are --
-- met: --
-- 1. Redistributions of source code must retain the above copyright --
-- notice, this list of conditions and the following disclaimer. --
-- 2. Redistributions in binary form must reproduce the above copyright --
-- notice, this list of conditions and the following disclaimer in --
-- the documentation and/or other materials provided with the --
-- distribution. --
-- 3. Neither the name of the copyright holder nor the names of its --
-- contributors may be used to endorse or promote products derived --
-- from this software without specific prior written permission. --
-- --
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS --
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT --
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR --
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT --
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, --
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT --
-- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, --
-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY --
-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT --
-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE --
-- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --
-- --
------------------------------------------------------------------------------
with Ada.Text_IO; use Ada.Text_IO;
with Ada.Text_IO.Text_Streams; use Ada.Text_IO.Text_Streams;
with Interfaces; use Interfaces;
with TCG.Palette; use TCG.Palette;
with TCG.Tile_Layers; use TCG.Tile_Layers;
with TCG.Tilesets; use TCG.Tilesets;
package body TCG.Maps.Render is
type Unsigned_8_Array is array (Integer range <>) of Unsigned_8;
type Header (As_Array : Boolean := True) is record
case As_Array is
when True =>
Arr : Unsigned_8_Array (1 .. 14);
when False =>
Signature : Integer_16;
Size : Integer_32; -- File size
Reserved1 : Integer_16;
Reserved2 : Integer_16;
Offset : Integer_32; -- Data offset
end case;
end record with Unchecked_Union, Pack, Size => 14 * 8;
type Info (As_Array : Boolean := True) is record
case As_Array is
when True =>
Arr : Unsigned_8_Array (1 .. 40);
when False =>
Struct_Size : Integer_32;
Width : Integer_32; -- Image width in pixels
Height : Integer_32; -- Image hieght in pixels
Planes : Integer_16;
Pixel_Size : Integer_16; -- Bits per pixel
Compression : Integer_32; -- Zero means no compression
Image_Size : Integer_32; -- Size of the image data in UInt8s
PPMX : Integer_32; -- Pixels per meter in x led
PPMY : Integer_32; -- Pixels per meter in y led
Palette_Size : Integer_32; -- Number of colors
Important : Integer_32;
end case;
end record with Unchecked_Union, Pack, Size => 40 * 8;
------------
-- To_BMP --
------------
procedure To_BMP
(M : Map;
Path : String;
Background : ARGB_Color)
is
Output : File_Type;
Tile_Width : constant Natural := Maps.Tile_Width (M);
Tile_Height : constant Natural := Maps.Tile_Height (M);
Width : constant Natural := Maps.Width (M) * Maps.Tile_Width (M);
Height : constant Natural := Maps.Height (M) * Maps.Tile_Height (M);
Hdr : Header;
Inf : Info;
Row_Size : constant Integer_32 := Integer_32 (Width * 24);
Row_Padding : constant Integer_32 := (32 - (Row_Size mod 32)) mod 32 / 8;
Data_Size : constant Integer_32 :=
(Row_Size + Row_Padding) * Integer_32 (Height);
RGB_Pix : ARGB_Color;
Pix_Out : Unsigned_8_Array (1 .. 3);
Padding : constant Unsigned_8_Array (1 .. Integer (Row_Padding)) :=
(others => 0);
T_Id : Tilesets.Master_Tile_Id;
begin
Create (File => Output, Mode => Out_File, Name => Path);
if not Is_Open (Output) then
raise Program_Error with "Cannot create file: " & Path;
end if;
Hdr.Signature := 16#4D42#;
Hdr.Size := (Data_Size + 54) / 4;
Hdr.Offset := 54;
Inf.Struct_Size := 40;
Inf.Width := Integer_32 (Width);
Inf.Height := Integer_32 (Height);
Inf.Planes := 1;
Inf.Pixel_Size := 24;
Inf.Compression := 0;
Inf.Image_Size := Data_Size / 4;
Inf.PPMX := 2835;
Inf.PPMY := 2835;
Inf.Palette_Size := 0;
Inf.Important := 0;
Unsigned_8_Array'Write (Stream (Output), Hdr.Arr);
Unsigned_8_Array'Write (Stream (Output), Inf.Arr);
for Y in reverse 0 .. Height - 1 loop
for X in 0 .. Width - 1 loop
RGB_Pix := Transparent;
for L in reverse 0 .. Number_Of_Layers (M) - 1 loop
T_Id := Master_Tile (M,
Tile (Layer (M, L),
1 + X / Tile_Width,
1 + Y / Tile_Height));
if T_Id /= No_Tile then
RGB_Pix := Tilesets.Pix (T_Id,
1 + X mod Tile_Width,
1 + Y mod Tile_Height);
end if;
exit when RGB_Pix /= Palette.Transparent;
end loop;
if RGB_Pix = Transparent then
RGB_Pix := Background;
end if;
Pix_Out (1) := RGB_Pix.B;
Pix_Out (2) := RGB_Pix.G;
Pix_Out (3) := RGB_Pix.R;
Unsigned_8_Array'Write (Stream (Output), Pix_Out);
end loop;
end loop;
Unsigned_8_Array'Write (Stream (Output), Padding);
Close (Output);
end To_BMP;
end TCG.Maps.Render;
|