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2026-09-17 20:39:08 +09:00 · 2026-08-07 15:56:42 +09:00
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+#include "mex.h"
+#include "gpu/mxGPUArray.h"
+#include "interp3_gpu.hpp"
+
+//  interp3_gpu.m - fast texture based GPU based interpolation method for 3D deformation 
+//
+//  RECOMPILE: mexcuda -output interp3_gpu_mex interp3_gpu_ker.cu interp3_gpu_mex.cpp
+// 
+// %*-----------------------------------------------------------------------*
+// %|                                                                       |
+// %|  Except where otherwise noted, this work is licensed under a          |
+// %|  Creative Commons Attribution-NonCommercial-ShareAlike 4.0            |
+// %|  International (CC BY-NC-SA 4.0) license.                             |
+// %|                                                                       |
+// %|  Copyright (c) 2018 by Paul Scherrer Institute (http://www.psi.ch)    |
+// %|                                                                       |
+// %|       Author: CXS group, PSI                                          |
+// %*-----------------------------------------------------------------------*
+// % You may use this code with the following provisions:
+// %
+// % If the code is fully or partially redistributed, or rewritten in another
+// %   computing language this notice should be included in the redistribution.
+// %
+// % If this code, or subfunctions or parts of it, is used for research in a 
+// %   publication or if it is fully or partially rewritten for another 
+// %   computing language the authors and institution should be acknowledged 
+// %   in written form in the publication: “Data processing was carried out 
+// %   using the “cSAXS matlab package” developed by the CXS group,
+// %   Paul Scherrer Institut, Switzerland.” 
+// %   Variations on the latter text can be incorporated upon discussion with 
+// %   the CXS group if needed to more specifically reflect the use of the package 
+// %   for the published work.
+// %
+// % A publication that focuses on describing features, or parameters, that
+// %    are already existing in the code should be first discussed with the
+// %    authors.
+// %   
+// % This code and subroutines are part of a continuous development, they 
+// %    are provided “as they are” without guarantees or liability on part
+// %    of PSI or the authors. It is the user responsibility to ensure its 
+// %    proper use and the correctness of the results.
+
+
+/**
+ * MEX gateway
+ */
+void mexFunction(int nlhs , mxArray *plhs[],
+                 int nrhs, mxArray const *prhs[])
+{
+    char const * const errId = "parallel:gpu:interp3_gpu:InvalidInput";
+    char const * const errMsg = "Invalid input to MEX file.";
+
+    // Initialize the MathWorks GPU API.
+    mxInitGPU();
+
+    if (nrhs!=4) {
+        mexPrintf("Wrong number of inputs\n");
+        mexErrMsgIdAndTxt(errId, errMsg);
+    }
+    
+   
+    const mxGPUArray * m_Img_orig = mxGPUCreateFromMxArray(prhs[0]); 
+	if ((mxGPUGetClassID(m_Img_orig) != mxSINGLE_CLASS)) {
+       mexPrintf("wrong input m_Img_orig\n");
+	   mexErrMsgIdAndTxt(errId, errMsg);
+	}
+	const float * p_Img_orig = (const float *)mxGPUGetDataReadOnly(m_Img_orig);
+ 
+    
+    const mxGPUArray * m_X = mxGPUCreateFromMxArray(prhs[1]);
+    const mxGPUArray * m_Y = mxGPUCreateFromMxArray(prhs[2]);
+    const mxGPUArray * m_Z = mxGPUCreateFromMxArray(prhs[3]);
+    if ((mxGPUGetClassID(m_X) != mxSINGLE_CLASS) |
+        (mxGPUGetClassID(m_Y) != mxSINGLE_CLASS) |
+        (mxGPUGetClassID(m_Z) != mxSINGLE_CLASS)) {
+       mexPrintf("wrong input X,Y,Z\n");
+	   mexErrMsgIdAndTxt(errId, errMsg);
+	}
+
+    mwSize  const * dimensions = mxGPUGetDimensions(m_Img_orig);
+    mwSize Ndim =  mxGPUGetNumberOfDimensions(m_Img_orig);
+    int M = (int)dimensions[0];
+    int N = (int)dimensions[1];
+    int O = Ndim > 2 ? (int)dimensions[2] :  1;
+            
+    mxGPUArray * m_Img_out = mxGPUCreateGPUArray(Ndim,
+                dimensions,
+                mxSINGLE_CLASS,
+                mxREAL,
+                MX_GPU_INITIALIZE_VALUES);
+    float *  p_Img_out = (float *)mxGPUGetData(m_Img_out);
+    
+    checkLastError("Before kernel run");
+
+    // mexcuda -output interp3_gpu_mex interp3_gpu_ker.cu interp3_gpu_mex.cpp
+        
+    interp3_init( p_Img_out,m_Img_orig, m_X, m_Y, m_Z, M, N, O);
+ 
+   checkLastError("Before after run");
+
+    plhs[0] = mxGPUCreateMxArrayOnGPU(m_Img_out);
+
+    mxGPUDestroyGPUArray(m_Img_out);
+    mxGPUDestroyGPUArray(m_Img_orig);
+    mxGPUDestroyGPUArray(m_X);
+    mxGPUDestroyGPUArray(m_Y);
+    mxGPUDestroyGPUArray(m_Z);
+    
+    
+}
+
+