This putback adds array offsets to the public JOGL API. The offsets are

respected and used properly in all of the public and private functions.  The
changes are in gluegen, so that the code is generated properly.  And also
throughout the parts of the jogl code that are not gluegen-generated.

For the internally generated implementation methods, a "1" is added to
the method names.  So as to not overload the public API.  This is similar
to what is already done with Buffer APIs, which have a "0" added
internally.  I used a "1" instead of a "0" to avoid any collisions of the
signatures, which could happen if a null object was sent down for the
Array (e.g., the wrong method would get called).

This should be a suitable foundation for the implementation to add the
ability to wrap arrays in Buffers, which we plan to add to the implementation
soon.

These changes will cause all existing JOGL programs to break, although
adapting them is pretty easy.  We will later be putting back changed examples
and utilities that incorporate these new APIs.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/branches/JSR-231@313 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 50 insertions, 38 deletions

diff --git a/src/net/java/games/jogl/impl/Project.java b/src/net/java/games/jogl/impl/Project.java
index 60e8d5dad..e0bb03190 100755
--- a/src/net/java/games/jogl/impl/Project.java
+++ b/src/net/java/games/jogl/impl/Project.java
@@ -159,14 +159,13 @@ class Project {
    * @param in
    * @param out
    */
-  private void __gluMultMatrixVecd(double[] matrix, double[] in, double[] out) {
+  private void __gluMultMatrixVecd(double[] matrix, int matrix_offset, double[] in, double[] out) {
     for (int i = 0; i < 4; i++) {
       out[i] =
-        in[0] * matrix[0*4+i] +
-        in[1] * matrix[1*4+i] +
-        in[2] * matrix[2*4+i] +
-        in[3] * matrix[3*4+i];
-
+        in[0] * matrix[0*4+i+matrix_offset] +
+        in[1] * matrix[1*4+i+matrix_offset] +
+        in[2] * matrix[2*4+i+matrix_offset] +
+        in[3] * matrix[3*4+i+matrix_offset];
     }
   }
 
@@ -245,14 +244,14 @@ class Project {
    * @param b
    * @param r
    */
-  private void __gluMultMatricesd(double[] a, double[] b, double[] r) {
+  private void __gluMultMatricesd(double[] a, int a_offset, double[] b, int b_offset, double[] r) {
     for (int i = 0; i < 4; i++) {
       for (int j = 0; j < 4; j++) {
         r[i*4+j] =
-          a[i*4+0]*b[0*4+j] +
-          a[i*4+1]*b[1*4+j] +
-          a[i*4+2]*b[2*4+j] +
-          a[i*4+3]*b[3*4+j];
+          a[i*4+0+a_offset]*b[0*4+j+b_offset] +
+          a[i*4+1+a_offset]*b[1*4+j+b_offset] +
+          a[i*4+2+a_offset]*b[2*4+j+b_offset] +
+          a[i*4+3+a_offset]*b[3*4+j+b_offset];
       }
     }
   }
@@ -414,9 +413,13 @@ class Project {
                             double objy,
                             double objz,
                             double[] modelMatrix,
+                            int modelMatrix_offset,
                             double[] projMatrix,
+                            int projMatrix_offset,
                             int[] viewport,
-                            double[] win_pos) {
+                            int viewport_offset,
+                            double[] win_pos,
+                            int win_pos_offset ) {
 
     double[] in = this.in;
     double[] out = this.out;
@@ -426,8 +429,8 @@ class Project {
     in[2] = objz;
     in[3] = 1.0;
 
-    __gluMultMatrixVecd(modelMatrix, in, out);
-    __gluMultMatrixVecd(projMatrix, out, in);
+    __gluMultMatrixVecd(modelMatrix, modelMatrix_offset, in, out);
+    __gluMultMatrixVecd(projMatrix, projMatrix_offset, out, in);
 
     if (in[3] == 0.0)
       return false;
@@ -440,9 +443,9 @@ class Project {
     in[2] = in[2] * in[3] + 0.5f;
 
     // Map x,y to viewport
-    win_pos[0] = in[0] * viewport[2] + viewport[0];
-    win_pos[1] = in[1] * viewport[3] + viewport[1];
-    win_pos[2] = in[2];
+    win_pos[0+win_pos_offset] = in[0] * viewport[2+viewport_offset] + viewport[0+viewport_offset];
+    win_pos[1+win_pos_offset] = in[1] * viewport[3+viewport_offset] + viewport[1+viewport_offset];
+    win_pos[2+win_pos_offset] = in[2];
 
     return true;
   }
@@ -464,13 +467,17 @@ class Project {
                               double winy,
                               double winz,
                               double[] modelMatrix,
+                              int modelMatrix_offset,
                               double[] projMatrix,
+                              int projMatrix_offset,
                               int[] viewport,
-                              double[] obj_pos) {
+                              int viewport_offset,
+                              double[] obj_pos,
+                              int obj_pos_offset) {
     double[] in = this.in;
     double[] out = this.out;
 
-    __gluMultMatricesd(modelMatrix, projMatrix, finalMatrix);
+    __gluMultMatricesd(modelMatrix, modelMatrix_offset, projMatrix, projMatrix_offset, finalMatrix);
 
     if (!__gluInvertMatrixd(finalMatrix, finalMatrix))
       return false;
@@ -481,24 +488,24 @@ class Project {
     in[3] = 1.0;
 
     // Map x and y from window coordinates
-    in[0] = (in[0] - viewport[0]) / viewport[2];
-    in[1] = (in[1] - viewport[1]) / viewport[3];
+    in[0] = (in[0] - viewport[0+viewport_offset]) / viewport[2+viewport_offset];
+    in[1] = (in[1] - viewport[1+viewport_offset]) / viewport[3+viewport_offset];
 
     // Map to range -1 to 1
     in[0] = in[0] * 2 - 1;
     in[1] = in[1] * 2 - 1;
     in[2] = in[2] * 2 - 1;
 
-    __gluMultMatrixVecd(finalMatrix, in, out);
+    __gluMultMatrixVecd(finalMatrix, 0, in, out);
 
     if (out[3] == 0.0)
       return false;
 
     out[3] = 1.0 / out[3];
 
-    obj_pos[0] = out[0] * out[3];
-    obj_pos[1] = out[1] * out[3];
-    obj_pos[2] = out[2] * out[3];
+    obj_pos[0+obj_pos_offset] = out[0] * out[3];
+    obj_pos[1+obj_pos_offset] = out[1] * out[3];
+    obj_pos[2+obj_pos_offset] = out[2] * out[3];
 
     return true;
   }
@@ -524,15 +531,19 @@ class Project {
                                double winz,
                                double clipw,
                                double[] modelMatrix,
+                               int modelMatrix_offset,
                                double[] projMatrix,
+                               int projMatrix_offset,
                                int[] viewport,
+                               int viewport_offset,
                                double near,
                                double far,
-                               double[] obj_pos) {
+                               double[] obj_pos,
+                               int obj_pos_offset ) {
     double[] in = this.in;
     double[] out = this.out;
 
-    __gluMultMatricesd(modelMatrix, projMatrix, finalMatrix);
+    __gluMultMatricesd(modelMatrix, modelMatrix_offset, projMatrix, projMatrix_offset, finalMatrix);
 
     if (!__gluInvertMatrixd(finalMatrix, finalMatrix))
       return false;
@@ -543,8 +554,8 @@ class Project {
     in[3] = clipw;
 
     // Map x and y from window coordinates
-    in[0] = (in[0] - viewport[0]) / viewport[2];
-    in[1] = (in[1] - viewport[1]) / viewport[3];
+    in[0] = (in[0] - viewport[0+viewport_offset]) / viewport[2+viewport_offset];
+    in[1] = (in[1] - viewport[1+viewport_offset]) / viewport[3+viewport_offset];
     in[2] = (in[2] - near) / (far - near);
 
     // Map to range -1 to 1
@@ -552,15 +563,15 @@ class Project {
     in[1] = in[1] * 2 - 1;
     in[2] = in[2] * 2 - 1;
 
-    __gluMultMatrixVecd(finalMatrix, in, out);
+    __gluMultMatrixVecd(finalMatrix, 0, in, out);
 
     if (out[3] == 0.0)
       return false;
 
-    obj_pos[0] = out[0];
-    obj_pos[1] = out[1];
-    obj_pos[2] = out[2];
-    obj_pos[3] = out[3];
+    obj_pos[0+obj_pos_offset] = out[0];
+    obj_pos[1+obj_pos_offset] = out[1];
+    obj_pos[2+obj_pos_offset] = out[2];
+    obj_pos[3+obj_pos_offset] = out[3];
     return true;
   }
 
@@ -578,15 +589,16 @@ class Project {
                             double y,
                             double deltaX,
                             double deltaY,
-                            int[] viewport) {
+                            int[] viewport,
+                            int viewport_offset) {
     if (deltaX <= 0 || deltaY <= 0) {
       return;
     }
 
     /* Translate and scale the picked region to the entire window */
-    gl.glTranslated((viewport[2] - 2 * (x - viewport[0])) / deltaX,
-                    (viewport[3] - 2 * (y - viewport[1])) / deltaY,
+    gl.glTranslated((viewport[2+viewport_offset] - 2 * (x - viewport[0+viewport_offset])) / deltaX,
+                    (viewport[3+viewport_offset] - 2 * (y - viewport[1+viewport_offset])) / deltaY,
                     0);
-    gl.glScaled(viewport[2] / deltaX, viewport[3] / deltaY, 1.0);
+    gl.glScaled(viewport[2+viewport_offset] / deltaX, viewport[3+viewport_offset] / deltaY, 1.0);
   }
 }