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fix checksum of IEND chunk

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jbb01 2024-08-06 00:43:34 +02:00
parent 0cffee4cfa
commit c2d230bed0
4 changed files with 2 additions and 1 deletions
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src/main/java/eu/jonahbauer/raytracing/render/ImageFormat.java
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@ -41,6 +41,7 @@ public enum ImageFormat {
private static final int IHDR_TYPE = 0x49484452; private static final int IHDR_TYPE = 0x49484452;
private static final int IDAT_TYPE = 0x49444154; private static final int IDAT_TYPE = 0x49444154;
private static final int IEND_TYPE = 0x49454E44; private static final int IEND_TYPE = 0x49454E44;
private static final int IEND_CRC = -1371381630;
@Override @Override
public void write(@NotNull Canvas image, @NotNull OutputStream out) throws IOException { 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 { private void writeIEND(@NotNull Canvas image, @NotNull DataOutputStream data) throws IOException {
data.writeInt(0); data.writeInt(0);
data.writeInt(IEND_TYPE); data.writeInt(IEND_TYPE);
data.writeInt(0); data.writeInt(IEND_CRC);
} }
private static class NoCloseDataOutputStream extends DataOutputStream { private static class NoCloseDataOutputStream extends DataOutputStream {