JFlexiPix

implemented fade example, fixed bug in data output
Parent 3fd7acd
Stefan Schuermans

Stefan Schuermans commited on 2011-09-11 11:18:16
Showing 4 changed files, with 93 additions and 5 deletions.

Makefile
View file @ 5813c6e
... ... 
@@ -34,14 +34,14 @@ PKG_PATH_EX=$(PKG_PATH)/examples
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 CLASSES=AddrParser Config Constants Display Distri \
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         Mapping MessageIf MsgType Pixel PixelParser Version
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-CLASSES_EX=Blink Msg
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+CLASSES_EX=Blink Fade Msg
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 CLASS_FILES=$(addprefix $(PKG_PATH)/,$(addsuffix .class,$(CLASSES)))
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 CLASS_FILES_EX=$(addprefix $(PKG_PATH_EX)/,$(addsuffix .class,$(CLASSES_EX)))
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 CONFIG_EX=$(PKG_PATH_EX)/config/single8x8.flp
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 CLASSPATH=.
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-.PHONY: all clean jar blink
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+.PHONY: all clean jar blink fade
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 .SUFFIXES:
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 .SECONDARY:
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... ... 
@@ -58,6 +58,9 @@ jar: JFlexiPix.jar
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 blink: $(PKG_PATH_EX)/Blink.class
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 	$(JAVA) -classpath . $(subst /,.,$(basename $<)) $(CONFIG_EX)
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+fade: $(PKG_PATH_EX)/Fade.class
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+	$(JAVA) -classpath . $(subst /,.,$(basename $<)) $(CONFIG_EX)
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+
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 $(CLASS_FILES_EX): $(CLASS_FILES)
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 $(PKG_PATH)/Version.java: Makefile
org/blinkenareJFlexiPix/Config.java
View file @ 5813c6e
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@@ -372,7 +372,7 @@ class Config
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       if (m_messageIf != null)
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         m_messageIf.message(MsgType.Warn,
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                             String.format("invalid line %d in config file," +
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-                                          " ignored\n", m_lineNo));
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+                                          " ignored", m_lineNo));
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       return;
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     }
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     setting = matcher.group(1);
... ... 
@@ -424,7 +424,7 @@ class Config
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                                                m_display.m_size.m_y) +
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          String.format("%d distributors, ",    m_display.m_distriCnt ) +
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          String.format("%d outputs, ",         m_display.m_outputCnt ) +
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-         String.format("%d pixels\n",          m_display.m_pixelCnt));
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+         String.format("%d pixels",            m_display.m_pixelCnt));
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   }
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   /**
org/blinkenareJFlexiPix/Display.java
View file @ 5813c6e
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@@ -131,7 +131,7 @@ public class Display
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         // get RGB data of pixels for every output
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         for (out = 0, i = 0; out < distri.m_outputCnt; ++out) {
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-          for (pix = 0; pix < distri.m_pixelCnt; ++pix) {
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+          for (pix = 0; pix < distri.m_pixelCnt; ++pix, ++i) {
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             pixel = distri.m_pixels[i];
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             if (pixel != null) {
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org/blinkenareJFlexiPix/examples/Fade.java
View file @ 5813c6e
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@@ -0,0 +1,85 @@
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+/* JFlexiPix - Java implementation of FlexiPix output library
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+ *
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+ * Copyright 2010-2011 Stefan Schuermans <stefan blinkenarea org>
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+ *
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+ * This program is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, version 3 of the License.
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+ *
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU Lesser General Public License
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+package org.blinkenarea.JFlexiPix.examples;
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+
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+import org.blinkenarea.JFlexiPix.*;
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+
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+public class Fade
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+{
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+  // entry point
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+  public static void main(String [] args)
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+  {
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+    String config;
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+    Display display;
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+    int width, height, i, x, y;
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+    byte [] image;
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+
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+    // check usage
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+    if (args.length < 1) {
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+      System.out.println("usage: java Fade <config.flp>");
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+      return;
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+    }
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+    config = args[0];
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+
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+    /* create a display, take configuration from a file,
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+       deliver messages to message method of new Msg object */
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+    try {
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+      display = new Display(config, new Msg());
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+    } catch (Exception e) {
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+      System.out.println("could not create display\n");
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+      e.printStackTrace();
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+      return;
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+    }
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+
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+    // get size and show it
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+    width  = display.getWidth();
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+    height = display.getHeight();
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+    System.out.println("display size:");
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+    System.out.println(String.format("  width:  %5d", width ));
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+    System.out.println(String.format("  height: %5d", height));
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+
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+    /* create an image with a nice fade:
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+       black to red from left to right,
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+       black to green from top to bottom */
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+    image = new byte [height * width * 3];
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+    i = 0;
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+    for (y = 0; y < height; ++y) {
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+      for (x = 0; x < width; ++x) {
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+        image[i++] = (byte)(255.0*x/(width -1)+0.5); // red
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+        image[i++] = (byte)(255.0*y/(height-1)+0.5); // green
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+        image[i++] = (byte)0;                        // no blue
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+      }
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+    }
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+
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+    // output image
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+    display.data(image,
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+                 3,         // consecutive pixels are 3 bytes apart
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+                 width * 3, // consecutive lines are width * 3 bytes apart
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+                 0, 0, width, height);
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+    display.send();
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+    try {
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+      Thread.sleep(500);
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+    } catch (InterruptedException e) {
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+    }
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+
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+    // free display
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+    display = null;
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+  }
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+}
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+
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