Use OpenCL for much faster diffraction calculation

1 files changed, 34 insertions, 0 deletions

diff --git a/src/diffraction-gpu.h b/src/diffraction-gpu.h
new file mode 100644
index 00000000..687fecf3
--- /dev/null
+++ b/src/diffraction-gpu.h
@@ -0,0 +1,34 @@
+/*
+ * diffraction-gpu.h
+ *
+ * Calculate diffraction patterns by Fourier methods (GPU version)
+ *
+ * (c) 2006-2010 Thomas White <taw@physics.org>
+ *
+ * Part of CrystFEL - crystallography with a FEL
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifndef DIFFRACTION_GPU_H
+#define DIFFRACTION_GPU_H
+
+#include "image.h"
+#include "cell.h"
+
+#if HAVE_OPENCL
+extern void get_diffraction_gpu(struct image *image, int na, int nb, int nc,
+                                int nosfac);
+#else
+static void get_diffraction_gpu(struct image *image, int na, int nb, int nc,
+                                int nosfac)
+{
+	/* Do nothing */
+	ERROR("This copy of CrystFEL was not compiled with OpenCL support.\n");
+}
+#endif
+
+#endif	/* DIFFRACTION_GPU_H */