Changeset 29522 for branches/eam_branches/ipp-20100823/psModules/src/camera/pmFPA_JPEG.c

Timestamp:

Oct 22, 2010, 11:39:15 AM (16 years ago)

Author:

eugene

Message:

rework jpeg options to allow flips and scale bar

File:

• branches/eam_branches/ipp-20100823/psModules/src/camera/pmFPA_JPEG.c (modified) (2 diffs)

branches/eam_branches/ipp-20100823/psModules/src/camera/pmFPA_JPEG.c

@@ -179 +179 @@
     psFree(stats);
 
+    // default options are: no flip in X or Y, scale bar on bottom
+    psImageJpegOptions *jpegOptions = psImageJpegOptionsAlloc();
+
     char *colormapName = psMetadataLookupStr(NULL, options, "COLORMAP"); // Name of colour map
     if (!colormapName) {
         colormapName = "-greyscale";
     }
+    psImageJpegColormapSet(jpegOptions, colormapName);
+
+    // set up the scale options
     char *mode = psMetadataLookupStr(NULL, options, "SCALE.MODE"); // Mode for scaling image
     if (!mode) {
@@ -195 +201 @@
         fmax = +6.0;
     }
-    bool haveBar = psMetadataLookupBool(&status, options, "SCALE.BAR"); // Mode for scaling image
-    if (!status) {
-        haveBar = false;
-    }
-
-    float min = 0, max = 0;             // Minimum and maximum for stretch
-
     if (!strcasecmp(mode, "RANGE")) {
-        min = mean + fmin*delta;
-        max = mean + fmax*delta;
+        jpegOptions->min = mean + fmin*delta;
+        jpegOptions->max = mean + fmax*delta;
     } else if (!strcasecmp(mode, "FRACTION")) {
-        min = fmin*mean;
-        max = fmax*mean;
+        jpegOptions->min = fmin*mean;
+        jpegOptions->max = fmax*mean;
     } else if (!strcasecmp(mode, "VALUE")) {
-        min = fmin;
-        max = fmax;
+        jpegOptions->min = fmin;
+        jpegOptions->max = fmax;
     } else {
         psError(PS_ERR_BAD_PARAMETER_VALUE, true, "Unrecognised scaling mode: %s", mode);
         return false;
     }
-
-    if (!isfinite(min) || !isfinite(max)) {
+    if (!isfinite(jpegOptions->min) || !isfinite(jpegOptions->max)) {
         psLogMsg("psModules.jpeg", PS_LOG_WARN,
                  "The stretch parameters are not both finite --- writing blank jpeg");
-        min = 0;
-        max = 1;
-    }
-
-    psImageJpegOptions *jpegOptions = psImageJpegOptionsAlloc();
-    psImageJpegColormapSet(jpegOptions, colormapName);
-
-    // default options are: no flip in X or Y, scale bar on bottom
-    jpegOptions->min = min;
-    jpegOptions->max = max;
-
-    if (haveBar) {
-        jpegOptions->showScale = PS_JPEG_SHOWSCALE_BOTTOM;
-    } else {
-        jpegOptions->showScale = PS_JPEG_SHOWSCALE_NONE;
+        jpegOptions->min = 0;
+        jpegOptions->max = 1;
+    }
+
+    jpegOptions->showScale = PS_JPEG_SHOWSCALE_NONE;
+    jpegOptions->xFlip = false;
+    jpegOptions->yFlip = false;
+    
+    char *userOptions = psMetadataLookupStr(&status, options, "OPTIONS"); // Mode for scaling image
+    if (userOptions) {
+        // just use strstr for now 
+        if (strcasestr(userOptions, "+SB")) {
+            jpegOptions->showScale = PS_JPEG_SHOWSCALE_BOTTOM;
+        } 
+        if (strcasestr(userOptions, "-X")) {
+            jpegOptions->xFlip = true;
+        } 
+        if (strcasestr(userOptions, "-Y")) {
+            jpegOptions->yFlip = true;
+        } 
     }