opengl: shared textures

Author: ujpv

make/test/JtregNativeJdk.gmk

@@ -97,7 +97,8 @@ ifeq ($(call isTargetOs, macosx), true)
   BUILD_JDK_JTREG_LIBRARIES_LIBS_libTestDynamicStore := \
       -framework Cocoa -framework SystemConfiguration
   BUILD_JDK_JTREG_LIBRARIES_LIBS_libSharedTexturesTest := \
-      -framework Cocoa -framework Metal
+      -framework Cocoa -framework Metal -framework OpenGL
+  BUILD_JDK_JTREG_EXCLUDE += libSharedTexturesTest.c
 else
   BUILD_JDK_JTREG_EXCLUDE += libTestMainKeyWindow.m
   BUILD_JDK_JTREG_EXCLUDE += libTestDynamicStore.m
@@ -109,6 +110,7 @@ endif
 ifeq ($(OPENJDK_TARGET_OS), windows)
   BUILD_JDK_JTREG_LIBRARIES_LIBS_libwindows_touch_robot := user32.lib
   BUILD_JDK_JTREG_EXCLUDE += libtouchscreen_device.c
+  BUILD_JDK_JTREG_LIBRARIES_LIBS_libSharedTexturesTest := gdi32.lib opengl32.lib user32.lib
 else
   ifeq ($(OPENJDK_TARGET_OS), linux)
     BUILD_JDK_JTREG_EXCLUDE += libwindows_touch_robot.c
@@ -124,6 +126,7 @@ ifeq ($(call isTargetOs, linux), true)
   BUILD_JDK_JTREG_LIBRARIES_STRIP_SYMBOLS_libFib := false
   # nio tests' libCreationTimeHelper native needs -ldl linker flag
   BUILD_JDK_JTREG_LIBRARIES_LDFLAGS_libCreationTimeHelper := -ldl
+  BUILD_JDK_JTREG_LIBRARIES_LIBS_libSharedTexturesTest := -lX11 -lGL -lGLX
 endif
 
 ifeq ($(ASAN_ENABLED), true)

src/java.desktop/linux/classes/com/jetbrains/desktop/SharedTextures.java

@@ -0,0 +1,95 @@
+/*
+ * Copyright 2025 JetBrains s.r.o.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.jetbrains.desktop;
+
+import com.jetbrains.desktop.image.TextureWrapperImage;
+import com.jetbrains.desktop.image.TextureWrapperSurfaceManager;
+import com.jetbrains.exported.JBRApi;
+import sun.awt.image.SurfaceManager;
+import sun.java2d.SurfaceData;
+
+import sun.java2d.opengl.*;
+
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsEnvironment;
+import java.awt.Image;
+
+@JBRApi.Service
+@JBRApi.Provides("SharedTextures")
+public class SharedTextures {
+    public final static int METAL_TEXTURE_TYPE = 1;
+    public final static int OPENGL_TEXTURE_TYPE = 2;
+
+    public static SharedTextures create() {
+        return new SharedTextures();
+    }
+
+    private SharedTextures() {}
+
+    public Image wrapTexture(GraphicsConfiguration gc, long texture) {
+        return new TextureWrapperImage(gc, texture);
+    }
+
+    public int getTextureType(GraphicsConfiguration gc) {
+        if (gc instanceof GLXGraphicsConfig) {
+            return OPENGL_TEXTURE_TYPE;
+        }
+
+        return 0;
+    }
+
+    @Deprecated
+    public int getTextureType() {
+        GraphicsConfiguration gc = GraphicsEnvironment
+                .getLocalGraphicsEnvironment()
+                .getDefaultScreenDevice()
+                .getDefaultConfiguration();
+        return getTextureType(gc);
+    }
+
+    public long[] getOpenGLContextInfo(GraphicsConfiguration gc) {
+        if (gc instanceof GLXGraphicsConfig glxGraphicsConfig) {
+            return new long[] {
+                    GLXGraphicsConfigExt.getSharedContext(),
+                    GLXGraphicsConfigExt.getAwtDisplay(),
+                    GLXGraphicsConfigExt.getFBConfig(glxGraphicsConfig),
+            };
+        }
+
+        throw new UnsupportedOperationException("Unsupported graphics configuration: " + gc);
+    }
+
+    static SurfaceManager createSurfaceManager(GraphicsConfiguration gc, Image image, long texture) {
+        SurfaceData sd;
+        if (gc instanceof GLXGraphicsConfig glxGraphicsConfig) {
+            sd = new GLXTextureWrapperSurfaceData(glxGraphicsConfig, image, texture);
+        } else {
+            throw new UnsupportedOperationException("Unsupported graphics configuration: " + gc);
+        }
+
+        return new TextureWrapperSurfaceManager(sd);
+    }
+}

src/java.desktop/macosx/classes/com/jetbrains/desktop/SharedTexturesService.java

@@ -31,36 +31,23 @@
 import sun.java2d.SurfaceData;
 import sun.java2d.metal.MTLGraphicsConfig;
 import sun.java2d.metal.MTLTextureWrapperSurfaceData;
+import sun.java2d.opengl.CGLGraphicsConfig;
+import sun.java2d.opengl.CGLGraphicsConfigExt;
+import sun.java2d.opengl.CGLTextureWrapperSurfaceData;
 
-import java.awt.GraphicsConfiguration;
-import java.awt.GraphicsEnvironment;
-import java.awt.Image;
+import java.awt.*;
 
 @JBRApi.Service
 @JBRApi.Provides("SharedTextures")
 public class SharedTexturesService extends SharedTextures {
-    private final int textureType;
-
     public SharedTexturesService() {
-        textureType = getTextureTypeImpl();
-        if (textureType == 0) {
-            throw new JBRApi.ServiceNotAvailableException();
-        }
-    }
-
-    @Override
-    public int getTextureType() {
-        return textureType;
     }
 
-    private static int getTextureTypeImpl() {
-        GraphicsConfiguration gc = GraphicsEnvironment
-                .getLocalGraphicsEnvironment()
-                .getDefaultScreenDevice()
-                .getDefaultConfiguration();
-
+    public int getTextureType(GraphicsConfiguration gc) {
         if (gc instanceof MTLGraphicsConfig) {
             return METAL_TEXTURE_TYPE;
+        } else if (gc instanceof CGLGraphicsConfig) {
+            return OPENGL_TEXTURE_TYPE;
         }
 
         return 0;
@@ -71,10 +58,24 @@ protected SurfaceManager createSurfaceManager(GraphicsConfiguration gc, Image im
         SurfaceData sd;
         if (gc instanceof MTLGraphicsConfig mtlGraphicsConfig) {
             sd = new MTLTextureWrapperSurfaceData(mtlGraphicsConfig, image, texture);
+        } else if (gc instanceof CGLGraphicsConfig cglGraphicsConfig) {
+            sd = new CGLTextureWrapperSurfaceData(cglGraphicsConfig, image, texture);
         } else {
-            throw new IllegalArgumentException("Unsupported graphics configuration: " + gc);
+            throw new UnsupportedOperationException("Unsupported graphics configuration: " + gc);
         }
 
         return new TextureWrapperSurfaceManager(sd);
     }
+
+    @Override
+    public long[] getOpenGLContextInfo(GraphicsConfiguration gc) {
+        if (gc instanceof CGLGraphicsConfig cglGraphicsConfig) {
+            return new long[] {
+                    CGLGraphicsConfigExt.getSharedContext(),
+                    CGLGraphicsConfigExt.getPixelFormat()
+            };
+        }
+
+        throw new UnsupportedOperationException("Unsupported graphics configuration: " + gc);
+    }
 }

src/java.desktop/macosx/classes/sun/java2d/opengl/CGLGraphicsConfigExt.java

@@ -0,0 +1,6 @@
+package sun.java2d.opengl;
+
+public class CGLGraphicsConfigExt {
+    public static native long getSharedContext();
+    public static native long getPixelFormat();
+}

src/java.desktop/macosx/classes/sun/java2d/opengl/CGLSurfaceData.java

@@ -43,8 +43,8 @@ private native void initOps(OGLGraphicsConfig gc, long pConfigInfo,
                                 long pPeerData, long layerPtr, int xoff,
                                 int yoff, boolean isOpaque);
 
-    private CGLSurfaceData(CGLLayer layer, CGLGraphicsConfig gc,
-                           ColorModel cm, int type, int width, int height) {
+    protected CGLSurfaceData(CGLLayer layer, CGLGraphicsConfig gc,
+                             ColorModel cm, int type, int width, int height) {
         super(gc, cm, type);
         // TEXTURE shouldn't be scaled, it is used for managed BufferedImages.
         scale = type == TEXTURE ? 1 : gc.getDevice().getScaleFactor();

src/java.desktop/macosx/classes/sun/java2d/opengl/CGLTextureWrapperSurfaceData.java

@@ -0,0 +1,50 @@
+package sun.java2d.opengl;
+
+import sun.java2d.SurfaceData;
+
+import java.awt.*;
+import java.awt.image.ColorModel;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class CGLTextureWrapperSurfaceData extends CGLSurfaceData {
+
+    public CGLTextureWrapperSurfaceData(CGLGraphicsConfig gc, Image image, long textureId) {
+        super(null, gc, gc.getColorModel(TRANSLUCENT), RT_TEXTURE, 0, 0);
+
+        OGLRenderQueue rq = OGLRenderQueue.getInstance();
+        AtomicBoolean success = new AtomicBoolean(false);
+        rq.lock();
+        try {
+            OGLContext.setScratchSurface(gc);
+            rq.flushAndInvokeNow(() -> success.set(OGLSurfaceDataExt.initWithTexture(this, textureId)));
+        } finally {
+            rq.unlock();
+        }
+
+        if (!success.get()) {
+            throw new IllegalArgumentException("Failed to init the surface data");
+        }
+    }
+
+    @Override
+    public SurfaceData getReplacement() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public Rectangle getBounds() {
+        return getNativeBounds();
+    }
+
+    @Override
+    public Object getDestination() {
+        return null;
+    }
+
+    @Override
+    public void flush() {
+        // reset the texture id first to avoid the texture deallocation
+        OGLSurfaceDataExt.resetTextureId(this);
+        super.flush();
+    }
+}

src/java.desktop/macosx/native/libawt_lwawt/java2d/opengl/CGLGraphicsConfigExt.m

@@ -0,0 +1,20 @@
+#import "sun_java2d_opengl_CGLGraphicsConfigExt.h"
+
+#import "JNIUtilities.h"
+
+extern NSOpenGLContext *sharedContext;
+extern NSOpenGLPixelFormat *sharedPixelFormat;
+
+JNIEXPORT jlong JNICALL
+Java_sun_java2d_opengl_CGLGraphicsConfigExt_getSharedContext
+    (JNIEnv *env, jclass cls)
+{
+  return ptr_to_jlong(sharedContext.CGLContextObj) ;
+}
+
+JNIEXPORT jlong JNICALL
+Java_sun_java2d_opengl_CGLGraphicsConfigExt_getPixelFormat
+    (JNIEnv *env, jclass cls)
+{
+  return ptr_to_jlong(sharedPixelFormat.CGLPixelFormatObj);
+}

src/java.desktop/share/classes/com/jetbrains/desktop/SharedTextures.java

@@ -32,12 +32,24 @@
 
 public abstract class SharedTextures {
     public final static int METAL_TEXTURE_TYPE = 1;
+    public final static int OPENGL_TEXTURE_TYPE = 2;
 
-    public abstract int getTextureType();
+    @Deprecated
+    public int getTextureType() {
+        GraphicsConfiguration gc = GraphicsEnvironment
+                .getLocalGraphicsEnvironment()
+                .getDefaultScreenDevice()
+                .getDefaultConfiguration();
+        return getTextureType(gc);
+    }
+
+    public abstract int getTextureType(GraphicsConfiguration gc);
 
     public final Image wrapTexture(GraphicsConfiguration gc, long texture) {
         return new TextureWrapperImage((img) -> createSurfaceManager(gc, img, texture));
     }
 
+    public abstract long[] getOpenGLContextInfo(GraphicsConfiguration gc);
+
     protected abstract SurfaceManager createSurfaceManager(GraphicsConfiguration gc, Image image, long texture);
 }

src/java.desktop/share/classes/com/jetbrains/desktop/image/TextureWrapperSurfaceManager.java

@@ -33,7 +33,7 @@
 
 
 public class TextureWrapperSurfaceManager extends SurfaceManager {
-    private final SurfaceData sd;
+    private SurfaceData sd;
 
     public TextureWrapperSurfaceManager(SurfaceData sd) {
         this.sd = sd;
@@ -53,4 +53,10 @@ public SurfaceData restoreContents() {
     public ImageCapabilities getCapabilities(GraphicsConfiguration gc) {
         return new ImageCapabilities(true);
     }
+
+    @Override
+    public synchronized void flush() {
+        sd.flush();
+        sd = null;
+    }
 }

src/java.desktop/share/classes/sun/java2d/opengl/OGLGraphicsConfigExt.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2025 JetBrains s.r.o.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.java2d.opengl;
+
+import java.awt.*;
+
+public class OGLGraphicsConfigExt {
+    public static long getSharedContext(GraphicsConfiguration gc) {
+        if (gc instanceof OGLGraphicsConfig) {
+            return getSharedContext();
+        }
+
+        throw new IllegalArgumentException("Not an OpenGL graphics config: " + gc);
+    }
+
+    public static long getPixelFormat(GraphicsConfiguration gc) {
+        if (gc instanceof OGLGraphicsConfig oglGc) {
+            return getPixelFormat(oglGc.getNativeConfigInfo());
+        }
+
+        throw new IllegalArgumentException("Not an OpenGL graphics config: " + gc);
+    }
+
+    private static native long getPixelFormat(long pConfigInfo);
+    private static native long getSharedContext();
+}