Changeset 2105 for trunk/psLib/test/image/tst_psImageManip.c

Timestamp:

Oct 13, 2004, 3:22:59 PM (22 years ago)

Author:

desonia

Message:

added test for psImageResample.

File:

• trunk/psLib/test/image/tst_psImageManip.c (modified) (4 diffs)

trunk/psLib/test/image/tst_psImageManip.c

@@ -6 +6 @@
  *  @author Robert DeSonia, MHPCC
  *
- *  @version $Revision: 1.28 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2004-10-02 02:23:05 $
+ *  @version $Revision: 1.29 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2004-10-14 01:22:59 $
  *
  *  Copyright 2004 Maui High Performance Computing Center, University of Hawaii
@@ -34 +34 @@
 static int testImageShift(void);
 static int testImageShiftCase(int cols, int rows, float colShift,float rowShift);
+static int testImageResample(void);
 
 testDescription tests[] = {
@@ -44 +45 @@
                               {testImageRotate,560,"psImageRotate",0,false},
                               {testImageShift,561,"psImageShift",0,false},
+                              {testImageResample,743,"psImageResample",0,false},
                               {NULL}
                           };
@@ -1704 +1706 @@
     return 0;
 }
+
+static int testImageResample(void)
+{
+
+    int rows = 60;
+    int cols = 80;
+    psImage* result = NULL;
+    int scale = 4;
+    psErr* err;
+
+    psImage* image = psImageAlloc(cols,rows,PS_TYPE_F32);
+    for(int row=0;row<rows;row++) {
+        psF32* imageRow = image->data.F32[row];
+        for (int col=0;col<cols;col++) {
+            imageRow[col] = row+2*col;
+        }
+    }
+    result = psImageCopy(NULL,image,PS_TYPE_F64);
+    psImage* orig = result;
+    result = psImageResample(result,image,scale,PS_INTERPOLATE_FLAT);
+
+    if (result == NULL) {
+        psLogMsg(__func__,PS_LOG_ERROR,
+                 "NULL return unexpected");
+        return 1;
+    }
+
+    if (result != orig) {
+        psLogMsg(__func__,PS_LOG_ERROR,"failure to recycle image.");
+        return 2;
+    }
+
+    if (result->type.type != PS_TYPE_F32) {
+        psLogMsg(__func__,PS_LOG_ERROR,"unexpected type");
+        return 3;
+    }
+
+
+    if (result->numCols != image->numCols*scale ||
+            result->numRows != image->numRows*scale) {
+        psLogMsg(__func__,PS_LOG_ERROR,"The size of the result is %dx%d, but %dx%d was expected.",
+                 result->numCols,result->numRows,
+                 image->numCols*scale, image->numRows*scale);
+        return 4;
+    }
+
+    psF32 truthValue;
+    for(int row=0;row<result->numRows;row++) {
+        for (int col=0;col<result->numCols;col++) {
+            truthValue = psImagePixelInterpolate(image,
+                                                 (float)col/(float)scale,(float)row/(float)scale,
+                                                 NULL,0,-1,PS_INTERPOLATE_FLAT);
+            if (fabs(truthValue - result->data.F32[row][col]) > FLT_EPSILON) {
+                psLogMsg(__func__,PS_LOG_ERROR,"value bad at (%d,%d).  Got %g, expected %g.",
+                         col,row,result->data.F32[row][col], truthValue);
+                return 5;
+            }
+        }
+    }
+
+    // verify that image=null is handled properly.
+    psErrorClear();
+    result = psImageResample(result,NULL,scale,PS_INTERPOLATE_FLAT);
+
+    if (result != NULL) {
+        psLogMsg(__func__,PS_LOG_ERROR,
+                 "return was not NULL, as expected.");
+        return 6;
+    }
+    err = psErrorLast();
+    if (err->code != PS_ERR_BAD_PARAMETER_NULL) {
+        psLogMsg(__func__,PS_LOG_ERROR,
+                 "error message was not appropriate type.");
+        return 7;
+    }
+    psFree(err);
+
+    // verify that scale < 1 is handled properly
+    psErrorClear();
+    result = psImageResample(result,image,0,PS_INTERPOLATE_FLAT);
+
+    if (result != NULL) {
+        psLogMsg(__func__,PS_LOG_ERROR,
+                 "return was not NULL, as expected.");
+        return 8;
+    }
+    err = psErrorLast();
+    if (err->code != PS_ERR_BAD_PARAMETER_VALUE) {
+        psLogMsg(__func__,PS_LOG_ERROR,
+                 "error message was not appropriate type.");
+        return 9;
+    }
+    psFree(err);
+
+    // verify that invalid interpolation mode is handled properly
+    psErrorClear();
+    result = psImageResample(result,image,2,0);
+
+    if (result != NULL) {
+        psLogMsg(__func__,PS_LOG_ERROR,
+                 "return was not NULL, as expected.");
+        return 10;
+    }
+    err = psErrorLast();
+    if (err->code != PS_ERR_BAD_PARAMETER_VALUE) {
+        psLogMsg(__func__,PS_LOG_ERROR,
+                 "error message was not appropriate type.");
+        return 11;
+    }
+    psFree(err);
+
+    psFree(image);
+    psFree(result);
+
+    return 0;
+}
+