From 390ccc3e549e4cc13b7dab91387e72c1f10b77a9 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Sat, 29 Aug 2015 04:20:27 +0200
Subject: Bug 1203: GLDrawable-Stateless operations in GLContextImpl, using
 ctxVersion and ctxOptions

- State-less operation during profile probing (mapGLVersions).
  While probing the GLDrawable/GLProfile and GL instance
  may not reflect the currently probed OpenGL profile.
  Hence stateless operation by passing required information
  is required for:
  - GLDynamicLookupHelper must be fetched via
    'major-version and contextOptions'.
  - GLContextImpl.resetProcAddress(..)
  - GLContextImpl.updateGLXProcAddressTable()
  - GLContextImpl.setGLFunctionAvailability(..)
  - ExtensionAvailabilityCache

TODO: Add replacement for GLProfile validation,
which is disabled right now.:
  drawable.getGLProfile().verifyEquality(gl.getGLProfile())

The GLDrawable.GLProfile maybe less than GL's GLProfile
due to current context-version and options.
Hence we would need a 'GLProfile.bwCompatibleWith(GLProfile)'.
---
 .../opengl/windows/wgl/WindowsWGLContext.java      | 31 ++++++++++++++++++----
 .../windows/wgl/WindowsWGLDrawableFactory.java     |  2 +-
 2 files changed, 27 insertions(+), 6 deletions(-)

(limited to 'src/jogl/classes/jogamp/opengl/windows')

diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java
index 6ff8c57c8..3cf9917e3 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java
@@ -60,6 +60,7 @@ import com.jogamp.opengl.GLRendererQuirks;
 import jogamp.nativewindow.windows.GDI;
 import jogamp.opengl.GLContextImpl;
 import jogamp.opengl.GLDrawableImpl;
+import jogamp.opengl.GLDynamicLookupHelper;
 import jogamp.opengl.GLXExtensions;
 
 public class WindowsWGLContext extends GLContextImpl {
@@ -201,13 +202,24 @@ public class WindowsWGLContext extends GLContextImpl {
 
   @Override
   protected long createContextARBImpl(final long share, final boolean direct, final int ctp, final int major, final int minor) {
+    if(DEBUG) {
+        System.err.println(getThreadName()+" - WindowWGLContext.createContextARBImpl: "+getGLVersion(major, minor, ctp, "@creation") +
+                ", handle "+toHexString(drawable.getHandle()) + ", share "+toHexString(share)+", direct "+direct);
+    }
     if( null == getWGLExtProcAddressTable()) {
-        updateGLXProcAddressTable();
+        final GLDynamicLookupHelper dlh = getGLDynamicLookupHelper(major, ctp);
+        if( null == dlh ) {
+            if(DEBUG) {
+                System.err.println(getThreadName()+" - WindowWGLContext.createContextARBImpl: Null GLDynamicLookupHelper");
+            }
+            return 0;
+        } else {
+            updateGLXProcAddressTable(null, dlh);
+        }
     }
     final WGLExt _wglExt = getWGLExt();
     if(DEBUG) {
-      System.err.println(getThreadName()+" - WindowWGLContext.createContextARBImpl: "+getGLVersion(major, minor, ctp, "@creation") +
-                         ", handle "+toHexString(drawable.getHandle()) + ", share "+toHexString(share)+", direct "+direct+
+      System.err.println(getThreadName()+" - WindowWGLContext.createContextARBImpl: "+
                          ", wglCreateContextAttribsARB: "+toHexString(wglExtProcAddressTable._addressof_wglCreateContextAttribsARB));
     }
 
@@ -441,8 +453,17 @@ public class WindowsWGLContext extends GLContextImpl {
     }
   }
 
+  /**
+   * {@inheritDoc}
+   * <p>
+   * Ignoring {@code contextFQN}, using {@code WGL}-{@link AbstractGraphicsDevice#getUniqueID()}.
+   * </p>
+   */
   @Override
-  protected final void updateGLXProcAddressTable() {
+  protected final void updateGLXProcAddressTable(final String contextFQN, final GLDynamicLookupHelper dlh) {
+    if( null == dlh ) {
+        throw new GLException("No GLDynamicLookupHelper for "+this);
+    }
     final AbstractGraphicsConfiguration aconfig = drawable.getNativeSurface().getGraphicsConfiguration();
     final AbstractGraphicsDevice adevice = aconfig.getScreen().getDevice();
     final String key = "WGL-"+adevice.getUniqueID();
@@ -465,7 +486,7 @@ public class WindowsWGLContext extends GLContextImpl {
         }
     } else {
         wglExtProcAddressTable = new WGLExtProcAddressTable(new GLProcAddressResolver());
-        resetProcAddressTable(wglExtProcAddressTable);
+        resetProcAddressTable(wglExtProcAddressTable, dlh);
         synchronized(mappedContextTypeObjectLock) {
             mappedGLXProcAddress.put(key, getWGLExtProcAddressTable());
             if(DEBUG) {
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java
index b6a96279c..8fd5454d2 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java
@@ -228,7 +228,7 @@ public class WindowsWGLDrawableFactory extends GLDrawableFactoryImpl {
   }
 
   @Override
-  public GLDynamicLookupHelper getGLDynamicLookupHelper(final String profileName) {
+  public final GLDynamicLookupHelper getGLDynamicLookupHelper(final int majorVersion, final int contextOptions) {
       return windowsWGLDynamicLookupHelper;
   }
 
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