Changeset 7739 for trunk/psModules/src/camera/pmFPAMaskWeight.c

Timestamp:

Jun 28, 2006, 2:27:31 PM (20 years ago)

Author:

Paul Price

Message:

Optimising code for speed: dereferencing pointers. Also, loop index for an image should be int, not long.

File:

• trunk/psModules/src/camera/pmFPAMaskWeight.c (modified) (1 diff)

trunk/psModules/src/camera/pmFPAMaskWeight.c

@@ -120 +120 @@
     }
     psImage *mask = readout->mask;      // The mask pixels
-    for (long i = 0; i < image->numRows; i++) {
-        for (long j = 0; j < image->numCols; j++) {
-            if (image->data.F32[i][j] >= saturation) {
-                mask->data.U8[i][j] |= PM_MASK_SAT;
+
+    // Dereference pointers for speed
+    psF32 **imageData = image->data.F32;// The image
+    psU8  **maskData  = mask->data.U8;  // The mask
+
+    for (int i = 0; i < image->numRows; i++) {
+        for (int j = 0; j < image->numCols; j++) {
+            if (imageData[i][j] >= saturation) {
+                maskData[i][j] |= PM_MASK_SAT;
             }
-            if (image->data.F32[i][j] <= bad) {
-                mask->data.U8[i][j] |= PM_MASK_BAD;
+            if (imageData[i][j] <= bad) {
+                maskData[i][j] |= PM_MASK_BAD;
             }
         }