From: Dirk Lemstra <dirk@lemstra.org>
Date: Thu, 8 Aug 2019 11:20:27 +0000 (+0200)
Subject: Read the compression information from the header.
X-Git-Tag: 7.0.8-60~18
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9b78ad8630e7dbee3b523c552c1e5cb652df2885;p=imagemagick

Read the compression information from the header.
---

diff --git a/coders/exr.c b/coders/exr.c
index ff712808c..da472796c 100644
--- a/coders/exr.c
+++ b/coders/exr.c
@@ -160,6 +160,9 @@ static Image *ReadEXRImage(const ImageInfo *image_info,ExceptionInfo *exception)
   ImfRgba
     *scanline;
 
+  int
+    compression;
+
   MagickBooleanType
     status;
 
@@ -205,6 +208,26 @@ static Image *ReadEXRImage(const ImageInfo *image_info,ExceptionInfo *exception)
   image->alpha_trait=BlendPixelTrait;
   (void) SetImageColorspace(image,RGBColorspace,exception);
   image->gamma=1.0;
+  image->compression=NoCompression;
+  compression=ImfHeaderCompression(hdr_info);
+  if (compression == IMF_RLE_COMPRESSION)
+    image->compression=RLECompression;
+  if (compression == IMF_ZIPS_COMPRESSION)
+    image->compression=ZipSCompression;
+  if (compression == IMF_ZIP_COMPRESSION)
+    image->compression=ZipCompression;
+  if (compression == IMF_PIZ_COMPRESSION)
+    image->compression=PizCompression;
+  if (compression == IMF_PXR24_COMPRESSION)
+    image->compression=Pxr24Compression;
+#if defined(IMF_B44_COMPRESSION)
+  if (compression == IMF_B44_COMPRESSION)
+    image->compression=B44Compression;
+#endif
+#if defined(IMF_B44A_COMPRESSION)
+  if (compression == IMF_B44A_COMPRESSION)
+    image->compression=B44ACompression;
+#endif
   if (image_info->ping != MagickFalse)
     {
       (void) ImfCloseInputFile(file);