From 9d052c650ba59ddc8132bce881bd487df31c5348 Mon Sep 17 00:00:00 2001
From: Masaya Tojo <masaya@tojo.tokyo>
Date: Sat, 10 Aug 2024 23:08:10 +0900
Subject: Add `image-format` prefix to library name

---
 image-format/pnm/image.scm | 53 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 image-format/pnm/image.scm

(limited to 'image-format/pnm/image.scm')

diff --git a/image-format/pnm/image.scm b/image-format/pnm/image.scm
new file mode 100644
index 0000000..2e64752
--- /dev/null
+++ b/image-format/pnm/image.scm
@@ -0,0 +1,53 @@
+;;; R7RS-PNM --- Library for reading and writing PNM (Portable Any Map) files for R7RS
+;;; Copyright © 2024 Masaya Tojo <masaya@tojo.tokyo>
+;;;
+;;; This file is part of R7RS-PNM.
+;;;
+;;; R7RS-PNM is free software: you can redistribute it and/or modify it
+;;; under the terms of the GNU Lesser General Public License as published
+;;; by the Free Software Foundation, either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; R7RS-PNM 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 Lesser General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU Lesser General Public License
+;;; along with R7RS-PNM. If not, see <https://www.gnu.org/licenses/>.
+
+(define-library (image-format pnm image)
+  (export make-pnm-image
+          pnm-image?
+          pnm-image-type
+          pnm-image-width
+          pnm-image-height
+          pnm-image-maxval
+          pnm-image-data
+          pnm-image-pixel-getter
+          pnm-image-pixel-setter
+          pnm-image-ref
+          pnm-image-set!)
+  (import (scheme base)
+          (scheme case-lambda))
+  (begin
+    (define-record-type <pnm-image>
+      (make-pnm-image type width height maxval data pixel-getter pixel-setter)
+      pnm-image?
+      (type pnm-image-type)
+      (width pnm-image-width)
+      (height pnm-image-height)
+      (maxval pnm-image-maxval)
+      (data pnm-image-data)
+      (pixel-getter pnm-image-pixel-getter)
+      (pixel-setter pnm-image-pixel-setter))
+
+    (define (pnm-image-ref pnm-image x y)
+      ((pnm-image-pixel-getter pnm-image) x y))
+
+    (define pnm-image-set!
+      (case-lambda
+        ((pnm-image x y v)
+         ((pnm-image-pixel-setter pnm-image) x y v))
+        ((pnm-image x y r g b)
+         ((pnm-image-pixel-setter pnm-image) x y r g b))))))
-- 
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