examples video and sound libraries

Author: monkstone

data_path/landscape.rb

@@ -11,7 +11,8 @@ class Landscape < Propane::App
   # Processing port by Raphaël de Courville.
   #
   attr_reader :landscape
-  java_alias :background_int, :background, [Java::int]
+  java_alias :background_int, :background, [Java::int]  
+  TITLE_FORMAT = 'frame: %d - fps: %0.2f'.freeze
 
   def settings
     size(640, 360, P2D)
@@ -21,7 +22,7 @@ def setup
     sketch_title 'Landscape'
     no_stroke
     # The code of this shader shows how to integrate shaders from shadertoy
-    # into Processing with minimal changes.
+    # into Processing/JRubyArt/propane with minimal changes.
     @landscape = load_shader(data_path('landscape.glsl'))
     landscape.set('resolution', width.to_f, height.to_f)
   end
@@ -31,7 +32,7 @@ def draw
     landscape.set('time', (millis/1000.0).to_f)
     shader(landscape)
     rect(0, 0, width, height)
-    frame.set_title("frame: #{frame_count} - fps: #{format('%0.2f', frame_rate)}")
+    sketch_title(format(TITLE_FORMAT, frame_count, frame_rate))
   end
 end
 

regular/pink_noise.rb

@@ -0,0 +1,32 @@
+# This is a simple pink noise generator. It can be started with .play(amp).
+# In this example it is started and stopped by clicking into the renderer window.
+require 'propane'
+
+class PinkNoiseApp < Propane::App
+  load_library :sound
+  include_package 'processing.sound'
+  
+  attr_reader :amp, :noise
+  
+  def settings
+    size(640, 360)
+  end
+  
+  def setup
+    sketch_title 'Pink Noise'
+    background(255)
+    @amp = 0.0
+    # Create the noise generator
+    @noise = PinkNoise.new(self)
+    noise.play(amp)
+  end      
+  
+  def draw
+    # Map mouseX from 0.0 to 1.0 for amplitude
+    noise.amp(map1d(mouse_x, (0..width), (0.0..1.0)))
+    # Map mouseY from -1.0 to 1.0 for left to right
+    noise.pan(map1d(mouse_y, (0..height), (-1.0..1.0)))
+  end
+end
+
+PinkNoiseApp.new

regular/test_capture.rb

@@ -0,0 +1,45 @@
+require 'propane'
+
+class TestCapture < Propane::App
+  load_library :video, :video_event  
+  include_package 'processing.video' 
+  attr_reader :cam
+  
+  def setup
+    sketch_title 'Test Capture'
+    cameras = Capture.list
+    fail 'There are no cameras available for capture.' if (cameras.length == 0)
+    p 'Matching cameras available:'
+    size_pattern = Regexp.new(format('%dx%d', width, height))
+    select = cameras.grep size_pattern # filter available cameras
+    select.uniq.map { |cam| p cam.strip }
+    fail 'There are no matching cameras.' if (select.length == 0)
+    start_capture(select[0])
+  end
+  
+  def start_capture(cam_string)
+    # The camera can be initialized directly using an
+    # element from the array returned by list:
+    @cam = Capture.new(self, cam_string)
+    p format('Using camera %s', cam_string)
+    cam.start
+  end
+  
+  def draw
+    image(cam, 0, 0, width, height)
+    # The following does the same, and is faster when just drawing the image
+    # without any additional resizing, transformations, or tint.
+    # set(0, 0, cam)
+  end
+  
+  def captureEvent(c)
+    c.read
+  end
+  
+  def settings
+    size 960, 544, P2D
+  end
+end
+
+TestCapture.new
+