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, 286 insertions, 0 deletions

diff --git a/src/classes/com/sun/opengl/impl/windows/WindowsGLContext.java b/src/classes/com/sun/opengl/impl/windows/WindowsGLContext.java
new file mode 100644
index 000000000..d4b10dbfb
--- /dev/null
+++ b/src/classes/com/sun/opengl/impl/windows/WindowsGLContext.java
@@ -0,0 +1,286 @@
+/*
+ * 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 com.sun.opengl.impl.windows;
+
+import java.nio.*;
+import java.util.*;
+import javax.media.opengl.*;
+import com.sun.opengl.impl.*;
+
+public class WindowsGLContext extends GLContextImpl {
+  protected WindowsGLDrawable drawable;
+  protected long hglrc;
+  private boolean wglGetExtensionsStringEXTInitialized;
+  private boolean wglGetExtensionsStringEXTAvailable;
+  private static final Map/*<String, String>*/ functionNameMap;
+  private static final Map/*<String, String>*/ extensionNameMap;
+  private WGLExt wglExt;
+  // Table that holds the addresses of the native C-language entry points for
+  // WGL extension functions.
+  private WGLExtProcAddressTable wglExtProcAddressTable;
+
+  static {
+    functionNameMap = new HashMap();
+    functionNameMap.put("glAllocateMemoryNV", "wglAllocateMemoryNV");
+    functionNameMap.put("glFreeMemoryNV", "wglFreeMemoryNV");
+
+    extensionNameMap = new HashMap();
+    extensionNameMap.put("GL_ARB_pbuffer", "WGL_ARB_pbuffer");
+    extensionNameMap.put("GL_ARB_pixel_format", "WGL_ARB_pixel_format");
+  }
+
+  public WindowsGLContext(WindowsGLDrawable drawable,
+                          GLContext shareWith) {
+    super(shareWith);
+    this.drawable = drawable;
+  }
+  
+  public Object getPlatformGLExtensions() {
+    return getWGLExt();
+  }
+
+  public WGLExt getWGLExt() {
+    if (wglExt == null) {
+      wglExt = new WGLExtImpl(this);
+    }
+    return wglExt;
+  }
+
+  public GLDrawable getGLDrawable() {
+    return drawable;
+  }
+
+  protected String mapToRealGLFunctionName(String glFunctionName) {
+    String lookup = (String) functionNameMap.get(glFunctionName);
+    if (lookup != null) {
+      return lookup;
+    }
+    return glFunctionName;
+  }
+
+  protected String mapToRealGLExtensionName(String glExtensionName) {
+    String lookup = (String) extensionNameMap.get(glExtensionName);
+    if (lookup != null) {
+      return lookup;
+    }
+    return glExtensionName;
+  }
+
+  /**
+   * Creates and initializes an appropriate OpenGL context. Should only be
+   * called by {@link #makeCurrentImpl()}.
+   */
+  protected void create() {
+    if (drawable.getHDC() == 0) {
+      throw new GLException("Internal error: attempted to create OpenGL context without an associated drawable");
+    }
+    hglrc = WGL.wglCreateContext(drawable.getHDC());
+    if (hglrc == 0) {
+      throw new GLException("Unable to create OpenGL context for device context " + toHexString(drawable.getHDC()));
+    }
+    // Windows can set up sharing of display lists after creation time
+    WindowsGLContext other = (WindowsGLContext) GLContextShareSet.getShareContext(this);
+    long hglrc2 = 0;
+    if (other != null) {
+      hglrc2 = other.getHGLRC();
+      if (hglrc2 == 0) {
+        throw new GLException("GLContextShareSet returned an invalid OpenGL context");
+      }
+      if (!WGL.wglShareLists(hglrc2, hglrc)) {
+        throw new GLException("wglShareLists(" + toHexString(hglrc2) +
+                              ", " + toHexString(hglrc) + ") failed: error code " +
+                              WGL.GetLastError());
+      }
+    }
+    GLContextShareSet.contextCreated(this);      
+    if (DEBUG) {
+      System.err.println(getThreadName() + ": !!! Created OpenGL context " + toHexString(hglrc) + " for " + this + ", device context " + toHexString(drawable.getHDC()) + ", sharing with " + toHexString(hglrc2));
+    }
+  }
+  
+  protected int makeCurrentImpl() throws GLException {
+    boolean created = false;
+    if (hglrc == 0) {
+      create();
+      if (DEBUG) {
+        System.err.println(getThreadName() + ": !!! Created GL context for " + getClass().getName());
+      }
+      created = true;
+    }
+
+    boolean skipMakeCurrent = false;
+    if (NO_FREE) {
+      if (WGL.wglGetCurrentContext() == hglrc) {
+        if (DEBUG && VERBOSE) {
+          System.err.println(getThreadName() + ": skipping wglMakeCurrent because context already current");
+        }
+        skipMakeCurrent = true;
+      }
+    }
+
+    if (!skipMakeCurrent) {
+      if (!WGL.wglMakeCurrent(drawable.getHDC(), hglrc)) {
+        throw new GLException("Error making context current: " + WGL.GetLastError());
+      } else {
+        if (DEBUG && VERBOSE) {
+          System.err.println(getThreadName() + ": wglMakeCurrent(hdc " + toHexString(drawable.getHDC()) +
+                             ", hglrc " + toHexString(hglrc) + ") succeeded");
+        }
+      }
+    }
+
+    if (created) {
+      resetGLFunctionAvailability();
+      return CONTEXT_CURRENT_NEW;
+    }
+    return CONTEXT_CURRENT;
+  }
+
+  protected void releaseImpl() throws GLException {
+    if (!NO_FREE) {
+      if (!WGL.wglMakeCurrent(0, 0)) {
+        throw new GLException("Error freeing OpenGL context: " + WGL.GetLastError());
+      }
+    }
+  }
+
+  protected void destroyImpl() throws GLException {
+    if (hglrc != 0) {
+      if (!WGL.wglDeleteContext(hglrc)) {
+        throw new GLException("Unable to delete OpenGL context");
+      }
+      if (DEBUG) {
+        System.err.println(getThreadName() + ": !!! Destroyed OpenGL context " + toHexString(hglrc));
+      }
+      hglrc = 0;
+      GLContextShareSet.contextDestroyed(this);
+    }
+  }
+
+  public boolean isCreated() {
+    return (hglrc != 0);
+  }
+
+  protected void resetGLFunctionAvailability() {
+    super.resetGLFunctionAvailability();
+    if (DEBUG) {
+      System.err.println(getThreadName() + ": !!! Initializing WGL extension address table for " + this);
+    }
+    resetProcAddressTable(getWGLExtProcAddressTable());
+  }
+  
+  public WGLExtProcAddressTable getWGLExtProcAddressTable() {
+    if (wglExtProcAddressTable == null) {
+      // FIXME: cache ProcAddressTables by capability bits so we can
+      // share them among contexts with the same capabilities
+      wglExtProcAddressTable = new WGLExtProcAddressTable();
+    }          
+    return wglExtProcAddressTable;
+  }
+  
+  public String getPlatformExtensionsString() {
+    if (!wglGetExtensionsStringEXTInitialized) {
+      wglGetExtensionsStringEXTAvailable = (WGL.wglGetProcAddress("wglGetExtensionsStringEXT") != 0);
+      wglGetExtensionsStringEXTInitialized = true;
+    }
+    if (wglGetExtensionsStringEXTAvailable) {
+      return getWGLExt().wglGetExtensionsStringEXT();
+    } else {
+      return "";
+    }
+  }
+
+  protected boolean isFunctionAvailable(String glFunctionName)
+  {
+    boolean available = super.isFunctionAvailable(glFunctionName);
+    
+    // Sanity check for implementations that use proc addresses for run-time
+    // linking: if the function IS available, then make sure there's a proc
+    // address for it if it's an extension or not part of the OpenGL 1.1 core
+    // (post GL 1.1 functions are run-time linked on windows).
+    assert(!available ||
+           (getGLProcAddressTable().getAddressFor(mapToRealGLFunctionName(glFunctionName)) != 0 ||
+            FunctionAvailabilityCache.isPartOfGLCore("1.1", mapToRealGLFunctionName(glFunctionName)))
+           );
+
+    return available;
+  }
+  
+  public void setSwapInterval(int interval) {
+    // FIXME: make the context current first? Currently assumes that
+    // will not be necessary. Make the caller do this?
+    WGLExt wglExt = getWGLExt();
+    if (wglExt.isExtensionAvailable("WGL_EXT_swap_control")) {
+      wglExt.wglSwapIntervalEXT(interval);
+    }
+  }
+
+  public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) {
+    return getWGLExt().wglAllocateMemoryNV(arg0, arg1, arg2, arg3);
+  }
+
+  public int getOffscreenContextPixelDataType() {
+    throw new GLException("Should not call this");
+  }
+
+  public int getOffscreenContextReadBuffer() {
+    throw new GLException("Should not call this");
+  }
+
+  public boolean offscreenImageNeedsVerticalFlip() {
+    throw new GLException("Should not call this");
+  }
+
+  public void bindPbufferToTexture() {
+    throw new GLException("Should not call this");
+  }
+
+  public void releasePbufferFromTexture() {
+    throw new GLException("Should not call this");
+  }
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+  protected long getHGLRC() {
+    return hglrc;
+  }
+}