(*
Copyright 2016, 2021, 2022 Anton Krotov
This file is part of CEdit.
CEdit is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
CEdit is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with CEdit. If not, see <http://www.gnu.org/licenses/>.
*)
MODULE LibImg;
IMPORT SYSTEM, KOSAPI, File;
VAR
file: INTEGER;
PROCEDURE [stdcall, "libimg.obj", ""] img_decode (data, size, options: INTEGER): INTEGER; END;
PROCEDURE [stdcall, "libimg.obj", ""] img_to_rgb2 (data, data_rgb: INTEGER); END;
PROCEDURE [stdcall, "libimg.obj", ""] img_scale (src, crop_x, crop_y, crop_width, crop_height, dst, scale, inter, param1, param2: INTEGER): INTEGER; END;
PROCEDURE [stdcall, "libimg.obj", ""] img_destroy* (img: INTEGER); END;
PROCEDURE GetInf*(img: INTEGER; VAR sizeX, sizeY, data: INTEGER);
BEGIN
SYSTEM.GET(img + 4, sizeX);
SYSTEM.GET(img + 8, sizeY);
SYSTEM.GET(img + 24, data);
END GetInf;
PROCEDURE GetImg*(ptr, n, Width: INTEGER; VAR sizeY: INTEGER): INTEGER;
VAR image_data, dst, x, y, type, rgb, data: INTEGER;
BEGIN
image_data := img_decode(ptr, n, 0);
IF image_data # 0 THEN
SYSTEM.GET(image_data + 4, x);
SYSTEM.GET(image_data + 8, y);
SYSTEM.GET(image_data + 20, type);
IF type # 2 THEN
rgb := KOSAPI.malloc(x * y * 3);
IF rgb # 0 THEN
img_to_rgb2(image_data, rgb);
SYSTEM.GET(image_data + 24, data);
data := KOSAPI.free(data);
SYSTEM.PUT(image_data + 24, rgb);
SYSTEM.PUT(image_data + 20, 2)
ELSE
img_destroy(image_data);
image_data := 0
END
END;
IF (x > Width) & (image_data # 0) THEN
dst := img_scale(image_data, 0, 0, x, y, dst, 3, 1, Width, (y * Width) DIV x);
img_destroy(image_data);
image_data := dst
END;
IF image_data # 0 THEN
SYSTEM.GET(image_data + 8, sizeY)
END
END
RETURN image_data
END GetImg;
PROCEDURE LoadFromFile* (FName: ARRAY OF CHAR; Width: INTEGER; VAR sizeY: INTEGER): INTEGER;
VAR F: File.FS; n, size, res: INTEGER;
BEGIN
res := 0;
F := File.Open(FName);
IF F # NIL THEN
size := File.Seek(F, 0, File.SEEK_END);
n := File.Seek(F, 0, File.SEEK_BEG);
file := KOSAPI.malloc(size + 1024);
IF file # 0 THEN
n := File.Read(F, file, size);
res := GetImg(file, n, Width, sizeY);
n := KOSAPI.free(file)
END;
File.Close(F)
END
RETURN res
END LoadFromFile;
END LibImg.