API Change ShaderCode/ShaderUtil: Enable optional mutable shader source / generalize shader source storage type to CharSequence[]

Benefits:
  - Allows code injection and general shader source editing (before compilation)

  - Uses mutable StringBuilder only if editing is intended, hence reduces memory footprint
    and String conversion at compilation in such case.

- ShaderCode.create(..) factory methods add nw attribute 'mutableStringBuilder'
  if true method returns a mutable StringBuilder instance
  which can be edited later on at the costs of a String conversion when passing to
  'glShaderSource(int, int, String[], IntBuffer)'.
  If <code>false</code> method returns an immutable <code>String</code> instance,
  which can be passed to {@link GL2ES2#glShaderSource(int, int, String[], IntBuffer)}
  at no additional costs.

- New 'edit' methods in ShaderCode: '
   - int insertShaderSource(int shaderIdx, String tag, int fromIndex, CharSequence data);
   - int insertShaderSource(int shaderIdx, int position, CharSequence data);

2 files changed, 8 insertions, 8 deletions

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java b/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
index 32a2f0b73..117faafb8 100755
--- a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
@@ -56,10 +56,10 @@ public class RegionRendererImpl01 extends RegionRenderer {
     protected boolean initShaderProgram(GL2ES2 gl) {

         final ShaderState st = rs.getShaderState();

         

-        ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, RegionRendererImpl01.class,

-                "shader", "shader/bin", getVertexShaderName(gl));

-        ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, RegionRendererImpl01.class,

-                "shader", "shader/bin", getFragmentShaderName(gl));

+        ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, RegionRendererImpl01.class, "shader",

+                "shader/bin", getVertexShaderName(gl), false);

+        ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, RegionRendererImpl01.class, "shader",

+                "shader/bin", getFragmentShaderName(gl), false);

     

         ShaderProgram sp = new ShaderProgram();

         sp.add(rsVp);

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java b/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
index 05d0707e2..158f0240a 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
@@ -49,10 +49,10 @@ public class TextRendererImpl01 extends TextRenderer {
     protected boolean initShaderProgram(GL2ES2 gl){
         final ShaderState st = rs.getShaderState();
 
-        ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, TextRendererImpl01.class,
-                "shader", "shader/bin", getVertexShaderName(gl));
-        ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, TextRendererImpl01.class,
-                "shader", "shader/bin", getFragmentShaderName(gl));
+        ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, TextRendererImpl01.class, "shader",
+                "shader/bin", getVertexShaderName(gl), false);
+        ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, TextRendererImpl01.class, "shader",
+                "shader/bin", getFragmentShaderName(gl), false);
         
         ShaderProgram sp = new ShaderProgram();
         sp.add(rsVp);