Merged JSR-231 branch on to the main JOGL trunk. The main trunk now

contains the evolving JSR-231 Reference Implementation and the JSR-231
branch is permanently closed.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@401 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 0 insertions, 233 deletions

diff --git a/src/net/java/games/jogl/DefaultGLCapabilitiesChooser.java b/src/net/java/games/jogl/DefaultGLCapabilitiesChooser.java
deleted file mode 100644
index 119007617..000000000
--- a/src/net/java/games/jogl/DefaultGLCapabilitiesChooser.java
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- * 
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * 
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * 
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- * 
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- * 
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- * 
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package net.java.games.jogl;
-
-import net.java.games.jogl.impl.Debug;
-
-/** <P> The default implementation of the {@link
-    GLCapabilitiesChooser} interface, which provides consistent visual
-    selection behavior across platforms. The precise algorithm is
-    deliberately left loosely specified. Some properties are: </P>
-
-    <UL>
-
-    <LI> As long as there is at least one available non-null
-    GLCapabilities which matches the "stereo" option, will return a
-    valid index.
-
-    <LI> Attempts to match as closely as possible the given
-    GLCapabilities, but will select one with fewer capabilities (i.e.,
-    lower color depth) if necessary.
-
-    <LI> Prefers hardware-accelerated visuals to
-    non-hardware-accelerated.
-
-    <LI> If there is no exact match, prefers a more-capable visual to
-    a less-capable one.
-
-    <LI> If there is more than one exact match, chooses an arbitrary
-    one.
-
-    <LI> May select the opposite of a double- or single-buffered
-    visual (based on the user's request) in dire situations.
-
-    <LI> Color depth (including alpha) mismatches are weighted higher
-    than depth buffer mismatches, which are in turn weighted higher
-    than accumulation buffer (including alpha) and stencil buffer
-    depth mismatches.
-
-    <LI> If a valid windowSystemRecommendedChoice parameter is
-    supplied, chooses that instead of using the cross-platform code.
-
-    </UL>
-*/
-
-public class DefaultGLCapabilitiesChooser implements GLCapabilitiesChooser {
-  private static final boolean DEBUG = Debug.debug("DefaultGLCapabilitiesChooser");
-
-  public int chooseCapabilities(GLCapabilities desired,
-                                GLCapabilities[] available,
-                                int windowSystemRecommendedChoice) {
-    if (DEBUG) {
-      for (int i = 0; i < available.length; i++) {
-        System.err.println("Available " + i + ": " + available[i]);
-      }
-    }
-
-    if (windowSystemRecommendedChoice >= 0 &&
-        windowSystemRecommendedChoice < available.length &&
-        available[windowSystemRecommendedChoice] != null) {
-      if (DEBUG) {
-        System.err.println("Choosing window system's recommended choice of " + windowSystemRecommendedChoice);
-        System.err.println(available[windowSystemRecommendedChoice]);
-      }
-      return windowSystemRecommendedChoice;
-    }
-
-    // Create score array
-    int[] scores = new int[available.length];
-    int NO_SCORE = -9999999;
-    int DOUBLE_BUFFER_MISMATCH_PENALTY = 1000;
-    int STENCIL_MISMATCH_PENALTY = 500;
-    // Pseudo attempt to keep equal rank penalties scale-equivalent
-    // (e.g., stencil mismatch is 3 * accum because there are 3 accum
-    // components)
-    int COLOR_MISMATCH_PENALTY_SCALE     = 36;
-    int DEPTH_MISMATCH_PENALTY_SCALE     = 6;
-    int ACCUM_MISMATCH_PENALTY_SCALE     = 1;
-    int STENCIL_MISMATCH_PENALTY_SCALE   = 3;
-    for (int i = 0; i < scores.length; i++) {
-      scores[i] = NO_SCORE;
-    }
-    // Compute score for each
-    for (int i = 0; i < scores.length; i++) {
-      GLCapabilities cur = available[i];
-      if (cur == null) {
-        continue;
-      }
-      if (desired.getStereo() != cur.getStereo()) {
-        continue;
-      }
-      int score = 0;
-      // Compute difference in color depth
-      // (Note that this decides the direction of all other penalties)
-      score += (COLOR_MISMATCH_PENALTY_SCALE *
-                ((cur.getRedBits() + cur.getGreenBits() + cur.getBlueBits() + cur.getAlphaBits()) -
-                 (desired.getRedBits() + desired.getGreenBits() + desired.getBlueBits() + desired.getAlphaBits())));
-      // Compute difference in depth buffer depth
-      score += (DEPTH_MISMATCH_PENALTY_SCALE * sign(score) * 
-                Math.abs(cur.getDepthBits() - desired.getDepthBits()));
-      // Compute difference in accumulation buffer depth
-      score += (ACCUM_MISMATCH_PENALTY_SCALE * sign(score) *
-                Math.abs((cur.getAccumRedBits() + cur.getAccumGreenBits() + cur.getAccumBlueBits() + cur.getAccumAlphaBits()) -
-                         (desired.getAccumRedBits() + desired.getAccumGreenBits() + desired.getAccumBlueBits() + desired.getAccumAlphaBits())));
-      // Compute difference in stencil bits
-      score += STENCIL_MISMATCH_PENALTY_SCALE * sign(score) * (cur.getStencilBits() - desired.getStencilBits());
-      if (cur.getDoubleBuffered() != desired.getDoubleBuffered()) {
-        score += sign(score) * DOUBLE_BUFFER_MISMATCH_PENALTY;
-      }
-      if ((desired.getStencilBits() > 0) && (cur.getStencilBits() == 0)) {
-        score += sign(score) * STENCIL_MISMATCH_PENALTY;
-      }
-      scores[i] = score;
-    }
-    // Now prefer hardware-accelerated visuals by pushing scores of
-    // non-hardware-accelerated visuals out
-    boolean gotHW = false;
-    int maxAbsoluteHWScore = 0;
-    for (int i = 0; i < scores.length; i++) {
-      int score = scores[i];
-      if (score == NO_SCORE) {
-        continue;
-      }
-      GLCapabilities cur = available[i];
-      if (cur.getHardwareAccelerated()) {
-        int absScore = Math.abs(score);
-        if (!gotHW ||
-            (absScore > maxAbsoluteHWScore)) {
-          gotHW = true;
-          maxAbsoluteHWScore = absScore;
-        }
-      }
-    }
-    if (gotHW) {
-      for (int i = 0; i < scores.length; i++) {
-        int score = scores[i];
-        if (score == NO_SCORE) {
-          continue;
-        }
-        GLCapabilities cur = available[i];
-        if (!cur.getHardwareAccelerated()) {
-          if (score <= 0) {
-            score -= maxAbsoluteHWScore;
-          } else if (score > 0) {
-            score += maxAbsoluteHWScore;
-          }
-          scores[i] = score;
-        }
-      }
-    }
-
-    if (DEBUG) {
-      System.err.print("Scores: [");
-      for (int i = 0; i < available.length; i++) {
-        if (i > 0) {
-          System.err.print(",");
-        }
-        System.err.print(" " + scores[i]);
-      }
-      System.err.println(" ]");
-    }
-
-    // Ready to select. Choose score closest to 0. 
-    int scoreClosestToZero = NO_SCORE;
-    int chosenIndex = -1;
-    for (int i = 0; i < scores.length; i++) {
-      int score = scores[i];
-      if (score == NO_SCORE) {
-        continue;
-      }
-      // Don't substitute a positive score for a smaller negative score
-      if ((scoreClosestToZero == NO_SCORE) ||
-          (Math.abs(score) < Math.abs(scoreClosestToZero) &&
-	   ((sign(scoreClosestToZero) < 0) || (sign(score) > 0)))) {
-        scoreClosestToZero = score;
-        chosenIndex = i;
-      }
-    }
-    if (chosenIndex < 0) {
-      throw new GLException("Unable to select one of the provided GLCapabilities");
-    }
-    if (DEBUG) {
-      System.err.println("Chosen index: " + chosenIndex);
-      System.err.println("Chosen capabilities:");
-      System.err.println(available[chosenIndex]);
-    }
-
-    return chosenIndex;
-  }
-
-  private static int sign(int score) {
-    if (score < 0) {
-      return -1;
-    }
-    return 1;
-  }
-}