1 files changed, 217 insertions, 0 deletions
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLUpstreamSurfaceHook.java b/src/jogl/classes/jogamp/opengl/egl/EGLUpstreamSurfaceHook.java
new file mode 100644
index 000000000..5b911576e
--- /dev/null
+++ b/src/jogl/classes/jogamp/opengl/egl/EGLUpstreamSurfaceHook.java
@@ -0,0 +1,217 @@
+package jogamp.opengl.egl;
+
+import javax.media.nativewindow.AbstractGraphicsConfiguration;
+import javax.media.nativewindow.AbstractGraphicsDevice;
+import javax.media.nativewindow.AbstractGraphicsScreen;
+import javax.media.nativewindow.DefaultGraphicsScreen;
+import javax.media.nativewindow.NativeSurface;
+import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.UpstreamSurfaceHook;
+import javax.media.nativewindow.VisualIDHolder.VIDType;
+import javax.media.opengl.GLCapabilitiesImmutable;
+import javax.media.opengl.GLException;
+
+import com.jogamp.nativewindow.egl.EGLGraphicsDevice;
+
+/**
+ * <pre>
+ * EGLWrappedSurface [ is_a -> WrappedSurface -> ProxySurfaceImpl -> ProxySurface -> MutableSurface -> NativeSurface] has_a
+ *     EGLUpstreamSurfaceHook [ is_a -> UpstreamSurfaceHook.MutableSize -> UpstreamSurfaceHook ] has_a
+ *        NativeSurface (i.e. native X11 surface)
+ * </pre>
+ */
+public class EGLUpstreamSurfaceHook implements UpstreamSurfaceHook.MutableSize {
+    protected static final boolean DEBUG = EGLDrawableFactory.DEBUG;
+    private final NativeSurface upstreamSurface;
+    private final UpstreamSurfaceHook.MutableSize upstreamSurfaceHookMutableSize;
+
+    public EGLUpstreamSurfaceHook(NativeSurface upstream) {
+        upstreamSurface = upstream;
+        if(upstreamSurface instanceof ProxySurface) {
+            final UpstreamSurfaceHook ush = ((ProxySurface)upstreamSurface).getUpstreamSurfaceHook();
+            if(ush instanceof UpstreamSurfaceHook.MutableSize) {
+                // offscreen NativeSurface w/ MutableSize (default)
+                upstreamSurfaceHookMutableSize = (UpstreamSurfaceHook.MutableSize) ush;
+            } else {
+                upstreamSurfaceHookMutableSize = null;
+            }
+        } else {
+            upstreamSurfaceHookMutableSize = null;
+        }
+    }
+
+    public final NativeSurface getUpstreamSurface() { return upstreamSurface; }
+
+    static String getThreadName() { return Thread.currentThread().getName(); }
+
+    @Override
+    public final void setSize(int width, int height) {
+        if(null != upstreamSurfaceHookMutableSize) {
+            upstreamSurfaceHookMutableSize.setSize(width, height);
+        }
+    }
+
+    @Override
+    public final void create(ProxySurface surface) {
+        final String dbgPrefix;
+        if(DEBUG) {
+            dbgPrefix = getThreadName() + ": EGLUpstreamSurfaceHook.create( up "+upstreamSurface.getClass().getSimpleName()+" -> this "+surface.getClass().getSimpleName()+" ): ";
+            System.err.println(dbgPrefix+this);
+        } else {
+            dbgPrefix = null;
+        }
+
+        if(upstreamSurface instanceof ProxySurface) {
+            // propagate createNotify(..) so upstreamSurface will be created
+            ((ProxySurface)upstreamSurface).createNotify();
+        }
+
+        // lock upstreamSurface, so it can be used in case EGLDisplay is derived from it!
+        if(NativeSurface.LOCK_SURFACE_NOT_READY >= upstreamSurface.lockSurface()) {
+            throw new GLException("Could not lock: "+upstreamSurface);
+        }
+        try {
+            evalUpstreamSurface(dbgPrefix, surface);
+        } finally {
+            upstreamSurface.unlockSurface();
+        }
+    }
+
+    private final void evalUpstreamSurface(String dbgPrefix, ProxySurface surface) {
+        //
+        // evaluate nature of upstreamSurface, may create EGL instances if required
+        //
+
+        boolean isEGLSurfaceValid = true; // assume yes
+
+        final EGLGraphicsDevice eglDevice;
+        final AbstractGraphicsConfiguration aConfig;
+        {
+            final AbstractGraphicsConfiguration surfaceConfig = surface.getGraphicsConfiguration();
+            final AbstractGraphicsDevice surfaceDevice = null != surfaceConfig ? surfaceConfig.getScreen().getDevice() : null;
+            if(DEBUG) {
+                System.err.println(dbgPrefix+"SurfaceDevice: "+surfaceDevice.getClass().getSimpleName()+", hash 0x"+Integer.toHexString(surfaceDevice.hashCode())+", "+surfaceDevice);
+                System.err.println(dbgPrefix+"SurfaceConfig: "+surfaceConfig.getClass().getSimpleName()+", hash 0x"+Integer.toHexString(surfaceConfig.hashCode())+", "+surfaceConfig);
+            }
+
+            final AbstractGraphicsConfiguration upstreamConfig = upstreamSurface.getGraphicsConfiguration();
+            final AbstractGraphicsDevice upstreamDevice = upstreamConfig.getScreen().getDevice();
+            if(DEBUG) {
+                System.err.println(dbgPrefix+"UpstreamDevice: "+upstreamDevice.getClass().getSimpleName()+", hash 0x"+Integer.toHexString(upstreamDevice.hashCode())+", "+upstreamDevice);
+                System.err.println(dbgPrefix+"UpstreamConfig: "+upstreamConfig.getClass().getSimpleName()+", hash 0x"+Integer.toHexString(upstreamConfig.hashCode())+", "+upstreamConfig);
+            }
+
+            if( surfaceDevice instanceof EGLGraphicsDevice ) {
+                eglDevice = (EGLGraphicsDevice) surfaceDevice;
+                aConfig = surfaceConfig;
+                if(DEBUG) {
+                    System.err.println(dbgPrefix+"Reusing this eglDevice: "+eglDevice+", using this config "+aConfig.getClass().getSimpleName()+" "+aConfig);
+                }
+                if(EGL.EGL_NO_DISPLAY == eglDevice.getHandle()) {
+                    eglDevice.open();
+                    isEGLSurfaceValid = false;
+                    surface.addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_DEVICE );
+                }
+            } else if( upstreamDevice instanceof EGLGraphicsDevice ) {
+                eglDevice = (EGLGraphicsDevice) upstreamDevice;
+                aConfig = upstreamConfig;
+                if(DEBUG) {
+                    System.err.println(dbgPrefix+"Reusing upstream eglDevice: "+eglDevice+", using upstream config "+aConfig.getClass().getSimpleName()+" "+aConfig);
+                }
+                if(EGL.EGL_NO_DISPLAY == eglDevice.getHandle()) {
+                    eglDevice.open();
+                    isEGLSurfaceValid = false;
+                    surface.addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_DEVICE );
+                }
+            } else {
+                eglDevice = EGLDisplayUtil.eglCreateEGLGraphicsDevice(upstreamSurface);
+                eglDevice.open();
+                aConfig = upstreamConfig;
+                isEGLSurfaceValid = false;
+                surface.addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_DEVICE );
+            }
+        }
+
+        final GLCapabilitiesImmutable capsRequested = (GLCapabilitiesImmutable) aConfig.getRequestedCapabilities();
+        final EGLGraphicsConfiguration eglConfig;
+        if( aConfig instanceof EGLGraphicsConfiguration ) {
+            // Config is already in EGL type - reuse ..
+            final EGLGLCapabilities capsChosen = (EGLGLCapabilities) aConfig.getChosenCapabilities();
+            if( !isEGLSurfaceValid || !EGLGraphicsConfiguration.isEGLConfigValid(eglDevice.getHandle(), capsChosen.getEGLConfig()) ) {
+                // 'refresh' the native EGLConfig handle
+                capsChosen.setEGLConfig(EGLGraphicsConfiguration.EGLConfigId2EGLConfig(eglDevice.getHandle(), capsChosen.getEGLConfigID()));
+                if( 0 == capsChosen.getEGLConfig() ) {
+                    throw new GLException("Refreshing native EGLConfig handle failed with error "+EGLContext.toHexString(EGL.eglGetError())+": "+eglDevice+", "+capsChosen+" of "+aConfig);
+                }
+                final AbstractGraphicsScreen eglScreen = new DefaultGraphicsScreen(eglDevice, aConfig.getScreen().getIndex());
+                eglConfig  = new EGLGraphicsConfiguration(eglScreen, capsChosen, capsRequested, null);
+                if(DEBUG) {
+                    System.err.println(dbgPrefix+"Refreshing eglConfig: "+eglConfig);
+                }
+                isEGLSurfaceValid = false;
+            } else {
+                eglConfig = (EGLGraphicsConfiguration) aConfig;
+                if(DEBUG) {
+                    System.err.println(dbgPrefix+"Reusing eglConfig: "+eglConfig);
+                }
+            }
+        } else {
+            final AbstractGraphicsScreen eglScreen = new DefaultGraphicsScreen(eglDevice, aConfig.getScreen().getIndex());
+            eglConfig = EGLGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(
+                    capsRequested, capsRequested, null, eglScreen, aConfig.getVisualID(VIDType.NATIVE), false /* forceTransparencyFlag */);
+
+            if (null == eglConfig) {
+                throw new GLException("Couldn't create EGLGraphicsConfiguration from "+eglScreen);
+            } else if(DEBUG) {
+                System.err.println(dbgPrefix+"Chosen eglConfig: "+eglConfig);
+            }
+            isEGLSurfaceValid = false;
+        }
+        surface.setGraphicsConfiguration(eglConfig);
+
+        if(isEGLSurfaceValid) {
+            isEGLSurfaceValid = EGLDrawable.isValidEGLSurface(eglDevice.getHandle(), upstreamSurface.getSurfaceHandle());
+        }
+        if(isEGLSurfaceValid) {
+            surface.setSurfaceHandle(upstreamSurface.getSurfaceHandle());
+            surface.clearUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE );
+            if(DEBUG) {
+                System.err.println(dbgPrefix+"Fin: Already valid EGL surface - use as-is: "+upstreamSurface);
+            }
+        } else {
+            surface.setSurfaceHandle(EGL.EGL_NO_SURFACE);
+            surface.addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE ); // create/destroy in EGLDrawable
+            if(DEBUG) {
+                System.err.println(dbgPrefix+"Fin: EGL surface n/a - TBD: "+upstreamSurface);
+            }
+        }
+    }
+
+    @Override
+    public final void destroy(ProxySurface surface) {
+        if(EGLDrawableFactory.DEBUG) {
+            System.err.println("EGLUpstreamSurfaceHook.destroy("+surface.getClass().getSimpleName()+"): "+this);
+        }
+        surface.clearUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE );
+        if(upstreamSurface instanceof ProxySurface) {
+            ((ProxySurface)upstreamSurface).destroyNotify();
+        }
+    }
+
+    @Override
+    public final int getWidth(ProxySurface s) {
+        return upstreamSurface.getWidth();
+    }
+
+    @Override
+    public final int getHeight(ProxySurface s) {
+        return upstreamSurface.getHeight();
+    }
+
+    @Override
+    public String toString() {
+        final String us_s = null != upstreamSurface ? ( upstreamSurface.getClass().getName() + ": 0x" + Long.toHexString(upstreamSurface.getSurfaceHandle()) ) : "nil";
+        return "EGLUpstreamSurfaceHook[ "+ upstreamSurface.getWidth() + "x" + upstreamSurface.getHeight() + ", " + us_s+ "]";
+    }
+
+}