Changeset 1505 for trunk/packages/vizservers/nanovis/FlowCmd.cpp

Timestamp:

Jun 10, 2009, 9:18:49 AM (15 years ago)

Author:

gah

Message:

Flip image along y-axis for movie

File:

• trunk/packages/vizservers/nanovis/FlowCmd.cpp (modified) (2 diffs)

trunk/packages/vizservers/nanovis/FlowCmd.cpp

@@ -1897 +1897 @@
     }
     // Save the old dimensions of the offscreen buffer.
-    int oldWidth, oldHeight;
+    size_t oldWidth, oldHeight;
     oldWidth = NanoVis::win_width;
     oldHeight = NanoVis::win_height;
 
+    char fileName[200];
+    sprintf(fileName,"/tmp/flow%d.mp4", getpid());
+
+    Trace("FLOW started\n");
+
+    Rappture::Outcome context;
+
+    Rappture::AVTranslate movie(width, height, bitRate, frameRate);
+    if (!movie.init(context, fileName)) {
+        Tcl_AppendResult(interp, "can't initialized movie \"", fileName, 
+                         "\": ", context.remark(), (char *)NULL);
+        return TCL_ERROR;
+    }
     if ((width != oldWidth) || (height != oldHeight)) {
         // Resize to the requested size.
         NanoVis::resize_offscreen_buffer(width, height);
     }
-
-    char fileName[128];
-    sprintf(fileName,"/tmp/flow%d.mp4", getpid());
-
-    Trace("FLOW started\n");
-
-    Rappture::Outcome context;
-    Rappture::AVTranslate movie(width, height, bitRate, frameRate);
-
+    // Now compute the line padding for the offscreen buffer.
     int pad = 0;
     if ((3*NanoVis::win_width) % 4 > 0) {
         pad = 4 - ((3*NanoVis::win_width) % 4);
     }
-
-    movie.init(context, fileName);
-
+    NanoVis::ResetFlows();
     for (int i = 0; i < numFrames; i++) {
         // Generate the latest frame and send it back to the client
@@ -1964 +1967 @@
         NanoVis::resize_offscreen_buffer(oldWidth, oldHeight);
     }
+    NanoVis::ResetFlows();
     NanoVis::licRenderer->make_patterns();
     if (unlink(fileName) != 0) {