fix checksum of IEND chunk

6 months ago · 96909002d7
parent ac5a42e7bc
commit 96909002d7
5 changed files with 2 additions and 1 deletions
--- a/docs/cornell.png
+++ b/docs/cornell.png
--- a/docs/cornell_smoke.png
+++ b/docs/cornell_smoke.png
--- a/docs/simple.png
+++ b/docs/simple.png
--- a/docs/squares.png
+++ b/docs/squares.png
--- a/src/main/java/eu/jonahbauer/raytracing/render/ImageFormat.java
+++ b/src/main/java/eu/jonahbauer/raytracing/render/ImageFormat.java
@ -41,6 +41,7 @@ public enum ImageFormat {
        private static final int IHDR_TYPE = 0x49484452;
        private static final int IDAT_TYPE = 0x49444154;
        private static final int IEND_TYPE = 0x49454E44;
+        private static final int IEND_CRC = 0xAE426082;

        @Override
        public void write(@NotNull Canvas image, @NotNull OutputStream out) throws IOException {
@ -101,7 +102,7 @@ public enum ImageFormat {
        private void writeIEND(@NotNull Canvas image, @NotNull DataOutputStream data) throws IOException {
            data.writeInt(0);
            data.writeInt(IEND_TYPE);
-            data.writeInt(0);
+            data.writeInt(IEND_CRC);
        }

        private static class NoCloseDataOutputStream extends DataOutputStream {