Changeset 5101 for trunk/psLib/src/types

Timestamp:

Sep 22, 2005, 2:04:36 PM (21 years ago)

Author:

drobbin

Message:

Added and update PixelGet/Set, ImageGet/Set, and test fxns

Location:

trunk/psLib/src/types

Files:

• psPixels.c (modified) (2 diffs)
• psPixels.h (modified) (2 diffs)

trunk/psLib/src/types/psPixels.c

@@ -7 +7 @@
  *  @author Robert DeSonia, MHPCC
  *
- *  @version $Revision: 1.16 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2005-08-30 01:14:13 $
+ *  @version $Revision: 1.17 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2005-09-23 00:04:36 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -332 +332 @@
     return (true);
 }
+
+bool psPixelsSet(psPixels *pixels,
+                 long position,
+                 psPixelCoord value)
+{
+    if (pixels == NULL)
+        return false;
+    if (position > pixels->n)
+        return false;
+    if(position < 0)
+        position += pixels->n;
+    if (position == pixels->n) {
+        if (position >= pixels->nalloc)
+            return false;
+        pixels->n++;
+    }
+    pixels->data[position].x = value.x;
+    pixels->data[position].y = value.y;
+
+    return true;
+}
+
+psPixelCoord psPixelsGet(const psPixels *pixels,
+                         long position)
+{
+    psPixelCoord out;
+    if (pixels == NULL) {
+        out.x = 0; //XXX: should be NAN when changed to float
+        out.y = 0; //XXX: should be NAN when changed to float
+        return out;
+    }
+    if (position >= pixels->n) {
+        out.x = 0; //XXX: should be NAN when changed to float
+        out.y = 0; //XXX: should be NAN when changed to float
+        return out;
+    }
+    if (position < 0)
+        position += pixels->n;
+    out.x = pixels->data[position].x;
+    out.y = pixels->data[position].y;
+    return out;
+}
+

trunk/psLib/src/types/psPixels.h

@@ -7 +7 @@
  *  @author Robert DeSonia, MHPCC
  *
- *  @version $Revision: 1.12 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2005-08-30 01:14:13 $
+ *  @version $Revision: 1.13 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2005-09-23 00:04:36 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -161 +161 @@
 );
 
+/** Sets the value of the the pixels array at the specified position to value.
+ *
+ *  A negative position means index from the end.
+ *
+ *  @return bool:       True if Successful, otherwise false.
+*/
+bool psPixelsSet(
+    psPixels *pixels,                  ///< pixels to set
+    long position,                     ///< position to set
+    psPixelCoord value                 ///< pixels value to be set
+);
+
+/** Returns the value of the pixels array at the specified position.
+ *
+ *  A negative position means index from the end.
+ *
+ *  @return psPixelCoord:       The value of the pixels at the specified position.
+*/
+psPixelCoord psPixelsGet(
+    const psPixels *pixels,            ///< input pixels from which to get
+    long position                      ///< position to get
+);
+
 #endif // #ifndef PS_PIXELS_H