From 923d9dd7f1d40db72d35ca76a761ca14babf147f Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Thu, 20 Sep 2012 23:12:48 +0200
Subject: Add GLRendererQuirks; Fix shared EGL/ES resources;

Add GLRendererQuirks:
  - Contains centralized 'tagged' workarounds for GL renderer bugs (quirks)
  - Accessible via GLContext and GLDrawableFactory
  - Initialized in GLContext.setAvailability*
  -

Simplify GLGraphicsConfigurationUtil.fixOffscreenGLCapabilities(..) & use Quirks
  - use quirks
  - instead of passing booleans for each config, pass factory & device

Fix shared EGL/ES resources:
  - GLProfile needs to initialize EGLDrawableFactory's shared resources before desktop,
    so EGLDrawableFactory can use the fallback defaultDisplay & defaultSharedResource
    for host mapped sharedResources (hack).

  - If using defaultSharedResources for host mapped ones,
    do not go through initialization cycles - simply map (sharedResource + context).

  - EGLDrawableFactory: Use device's unique-key instead of connection only,
    since the latter causes a collision (EGL-connection == X11-connection).
---
 .../com/jogamp/opengl/GLRendererQuirks.java        | 130 +++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 src/jogl/classes/com/jogamp/opengl/GLRendererQuirks.java

(limited to 'src/jogl/classes/com/jogamp/opengl/GLRendererQuirks.java')

diff --git a/src/jogl/classes/com/jogamp/opengl/GLRendererQuirks.java b/src/jogl/classes/com/jogamp/opengl/GLRendererQuirks.java
new file mode 100644
index 000000000..13c94c6f2
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/GLRendererQuirks.java
@@ -0,0 +1,130 @@
+/**
+ * Copyright 2012 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package com.jogamp.opengl;
+
+/** 
+ * GLRendererQuirks contains information of known bugs of various GL renderer. 
+ * This information allows us to workaround them.
+ * <p>
+ * Using centralized quirk identifier enables us to
+ * locate code dealing w/ it and hence eases it's maintenance.   
+ * </p>
+ */
+public class GLRendererQuirks {
+    /** Crashes XServer when using double buffered PBuffer with 'Mesa DRI Intel(R) Sandybridge Desktop' & 'Mesa DRI Intel(R) Ivybridge Mobile - 3.0 Mesa 8.0.4' */
+    public static final int NoDoubleBufferedPBuffer = 0;
+    
+    /** On Windows no double buffered bitmaps are guaranteed to be available. */
+    public static final int NoDoubleBufferedBitmap  = 1;
+
+    /** Crashes application when trying to set EGL swap interval on Android 4.0.3 / Pandaboard ES / PowerVR SGX 540 */
+    public static final int NoSetSwapInterval       = 2;
+    
+    /** No offscreen bitmap available, currently true for JOGL's OSX implementation. */
+    public static final int NoOffscreenBitmap       = 3;
+    
+    /** Number of quirks known. */
+    public static final int COUNT                   = 4;
+    
+    private static final String[] _names = new String[] { "NoDoubleBufferedPBuffer", "NoDoubleBufferedBitmap", "NoSetSwapInterval",
+                                                          "NoOffscreenBitmap" 
+                                                        };    
+
+    private final int _bitmask;
+
+    /**
+     * @param quirks an array of valid quirks
+     * @param offset offset in quirks array to start reading
+     * @param len number of quirks to read from offset within quirks array
+     * @throws IllegalArgumentException if one of the quirks is out of range
+     */
+    public GLRendererQuirks(int[] quirks, int offset, int len) throws IllegalArgumentException {
+        int bitmask = 0;
+        if( !( 0 <= offset + len && offset + len < quirks.length ) ) {
+            throw new IllegalArgumentException("offset and len out of bounds: offset "+offset+", len "+len+", array-len "+quirks.length);
+        }
+        for(int i=offset; i<offset+len; i++) {
+            final int quirk = quirks[i];
+            validateQuirk(quirk);
+            bitmask |= 1 << quirk;
+        }
+        _bitmask = bitmask;
+    }      
+
+    /**
+     * @param quirk the quirk to be tested
+     * @return true if quirk exist, otherwise false
+     * @throws IllegalArgumentException if quirk is out of range
+     */
+    public final boolean exist(int quirk) throws IllegalArgumentException {
+        validateQuirk(quirk);
+        return 0 != ( ( 1 << quirk )  & _bitmask );
+    }
+
+    public final StringBuilder toString(StringBuilder sb) {
+        if(null == sb) {
+            sb = new StringBuilder();
+        }
+        sb.append("[");
+        boolean first=true;
+        for(int i=0; i<COUNT; i++) {
+            final int testmask = 1 << i;
+            if( 0 != ( _bitmask & testmask ) ) {
+                if(!first) { sb.append(", "); }
+                sb.append(toString(i));
+                first=false;
+            }
+        }
+        sb.append("]");
+        return sb;
+    }
+    
+    public final String toString() {
+        return toString(null).toString();
+    }
+
+    /**
+     * @param quirk the quirk to be validated, i.e. whether it is out of range
+     * @throws IllegalArgumentException if quirk is out of range
+     */
+    public static void validateQuirk(int quirk) throws IllegalArgumentException {
+        if( !( 0 <= quirk && quirk < COUNT ) ) {
+            throw new IllegalArgumentException("Quirks must be in range [0.."+COUNT+"[, but quirk: "+quirk);
+        }        
+    }
+
+    /**
+     * @param quirk the quirk to be converted to String
+     * @return the String equivalent of this quirk
+     * @throws IllegalArgumentException if quirk is out of range
+     */
+    public static final String toString(int quirk) throws IllegalArgumentException {
+        validateQuirk(quirk);
+        return _names[quirk];
+    }
+}
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