opened api to accept PImage as input render source

Author: cansik

src/main/java/ch/bildspur/postfx/PostFXSupervisor.java

@@ -1,10 +1,7 @@
 package ch.bildspur.postfx;
 
 import ch.bildspur.postfx.pass.Pass;
-import processing.core.PApplet;
-import processing.core.PConstants;
-import processing.core.PGraphics;
-import processing.core.PMatrix3D;
+import processing.core.*;
 
 import java.nio.file.Path;
 
@@ -108,7 +105,7 @@ public void render() {
      * @param graphics Texture used as input.
      */
     @Override
-    public void render(PGraphics graphics) {
+    public void render(PImage graphics) {
         PGraphics pass = getNextPass();
         clearPass(pass);
 

src/main/java/ch/bildspur/postfx/Supervisor.java

@@ -2,6 +2,7 @@
 
 import ch.bildspur.postfx.pass.Pass;
 import processing.core.PGraphics;
+import processing.core.PImage;
 
 /**
  * Handles the pass buffer and render technique.
@@ -28,7 +29,7 @@ public interface Supervisor {
      *
      * @param graphics Texture used as input.
      */
-    void render(PGraphics graphics);
+    void render(PImage graphics);
 
     /**
      * Apply pass to texture.

src/main/java/ch/bildspur/postfx/builder/PostFX.java

@@ -4,6 +4,7 @@
 import ch.bildspur.postfx.pass.Pass;
 import processing.core.PApplet;
 import processing.core.PGraphics;
+import processing.core.PImage;
 
 /**
  * Basic PostFX api with builder pattern.
@@ -41,7 +42,7 @@ public PostFX(PApplet sketch, int width, int height) {
      * @param graphics Texture used to render.
      * @return PostFXBuilder pattern object.
      */
-    public PostFXBuilder render(PGraphics graphics) {
+    public PostFXBuilder render(PImage graphics) {
         supervisor.render(graphics);
         return builder;
     }