favor latest video library beta over gl graphics

Author: monkstone

library/video/mirror.rb

@@ -0,0 +1,58 @@
+#!/usr/bin/env jruby
+require 'picrate'
+
+# Test Class for Video Library
+class Mirror < Processing::App
+
+  load_library :video
+  attr_reader :video, :cols, :rows
+  # Size of each cell in the grid
+  CELL_SIZE = 20
+
+  def setup
+    sketch_title 'mirror'
+    frame_rate(30)
+    @cols = width / CELL_SIZE
+    @rows = height / CELL_SIZE
+    colorMode(RGB, 255, 255, 255, 100)
+    # This the default video input, try test_capture to find name of your Camera
+    @video = Java::ProcessingVideo::Capture.new(self, "UVC Camera (046d:0825)")
+    # Start capturing the images from the camera
+    video.start
+    background(0)
+  end
+
+  def draw
+    return unless video.available # ruby guard clause
+
+    video.read
+    video.loadPixels
+    grid(width, height, cols, rows) do |x, y|
+      loc = (video.width - x - 1) + y * video.width # Reversing x to mirror the image
+      col = color(
+        red(video.pixels[loc]),
+        green(video.pixels[loc]),
+        blue(video.pixels[loc]),
+        75 # alpha
+      )
+      # Code for drawing a single rect
+      # Using translate in order for rotation to work properly
+      push_matrix
+      translate(x + CELL_SIZE / 2, y + CELL_SIZE / 2)
+      # Rotation formula based on brightness
+      rotate((2 * PI * brightness(col) / 255.0))
+      rect_mode(CENTER)
+      fill(col)
+      no_stroke
+      # Rects are larger than the cell for some overlap
+      rect(0, 0, CELL_SIZE + 6, CELL_SIZE + 6)
+      pop_matrix
+    end
+  end
+
+  def settings
+    size(480, 360)
+  end
+end
+
+Mirror.new

library/video/test_capture.rb

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+#!/usr/bin/env jruby
+require 'picrate'
+
+# Test Class for Video Library
+class TestCapture < Processing::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 matching cameras.' if cameras.length.zero?
+    start_capture(cameras[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
+    return unless cam.available
+    cam.read
+    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 settings
+    size 960, 720, P2D
+  end
+end
+
+TestCapture.new

picrate.geany

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+[editor]
+line_wrapping=false
+line_break_column=72
+auto_continue_multiline=true
+
+[file_prefs]
+final_new_line=true
+ensure_convert_new_lines=false
+strip_trailing_spaces=true
+replace_tabs=true
+
+[indentation]
+indent_width=2
+indent_type=0
+indent_hard_tab_width=8
+detect_indent=false
+detect_indent_width=false
+indent_mode=2
+
+[project]
+name=picrate_samples
+base_path=/home/pi/picrate_samples
+description=Exploring PiCrate
+file_patterns=*.rb;*.glsl;*.txt;
+
+[long line marker]
+long_line_behaviour=1
+long_line_column=72
+
+[files]
+current_page=3
+FILE_NAME_0=667;Ruby;0;EUTF-8;0;1;0;%2Fhome%2Fpi%2Fprojects%2Fpicrate_sketches%2Fbasics%2Farrays%2Farray.rb;0;2
+FILE_NAME_1=1664;Ruby;0;EUTF-8;0;1;0;%2Fhome%2Fpi%2Fprojects%2Fpicrate_sketches%2Fadvanced_data%2Fload_save_json.rb;0;2
+FILE_NAME_2=259;Sh;0;EUTF-8;0;1;0;%2Fhome%2Fpi%2Fjruby_install.sh;0;2
+FILE_NAME_3=236;Sh;0;EUTF-8;0;1;0;%2Fhome%2Fpi%2Ftest.sh;0;2
+
+[VTE]
+last_dir=/home/pi
+
+[build-menu]
+EX_00_LB=_Execute
+EX_00_CM=jruby --dev "%f"
+EX_00_WD=
+RubyFT_00_LB=_Rubocop
+RubyFT_00_CM=rubocop --fail-level F "%f"
+RubyFT_00_WD=
+filetypes=Ruby;
+RubyFT_01_LB=_Rubocop autocorrect
+RubyFT_01_CM=rubocop -a  --fail-level F "%f"
+RubyFT_01_WD=
+NF_00_LB=
+NF_00_CM=
+NF_00_WD=
+NF_01_LB=
+NF_01_CM=
+NF_01_WD=
+NF_02_LB=
+NF_02_CM=
+NF_02_WD=
+RubyFT_02_LB=_Reek
+RubyFT_02_CM=reek --failure-exit-code=0 "%f"
+RubyFT_02_WD=