1 files changed, 48 insertions, 0 deletions
diff --git a/thirdparty/thekla_atlas/nvimage/nvimage.h b/thirdparty/thekla_atlas/nvimage/nvimage.h
new file mode 100644
index 0000000000..5c89bd4726
--- /dev/null
+++ b/thirdparty/thekla_atlas/nvimage/nvimage.h
@@ -0,0 +1,48 @@
+// This code is in the public domain -- castanyo@yahoo.es
+
+#pragma once
+#ifndef NV_IMAGE_H
+#define NV_IMAGE_H
+
+#include "nvcore/nvcore.h"
+#include "nvcore/Debug.h" // nvDebugCheck
+#include "nvcore/Utils.h" // isPowerOfTwo
+
+// Function linkage
+#if NVIMAGE_SHARED
+#ifdef NVIMAGE_EXPORTS
+#define NVIMAGE_API DLL_EXPORT
+#define NVIMAGE_CLASS DLL_EXPORT_CLASS
+#else
+#define NVIMAGE_API DLL_IMPORT
+#define NVIMAGE_CLASS DLL_IMPORT
+#endif
+#else
+#define NVIMAGE_API
+#define NVIMAGE_CLASS
+#endif
+
+
+namespace nv {
+
+    // Some utility functions:
+
+    inline uint computeBitPitch(uint w, uint bitsize, uint alignmentInBits)
+    {
+        nvDebugCheck(isPowerOfTwo(alignmentInBits));
+
+        return ((w * bitsize +  alignmentInBits - 1) / alignmentInBits) * alignmentInBits;
+    }
+
+    inline uint computeBytePitch(uint w, uint bitsize, uint alignmentInBytes)
+    {
+        uint pitch = computeBitPitch(w, bitsize, 8*alignmentInBytes);
+        nvDebugCheck((pitch & 7) == 0);
+
+        return (pitch + 7) / 8;
+    }
+
+
+} // nv namespace
+
+#endif // NV_IMAGE_H