Fixed Issue 92: Platform Independent VSync functionality

Added GL.setSwapInterval() which delegates to appropriate
platform-dependent routines. Must be called only from within
GLEventListener callbacks.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@260 232f8b59-042b-4e1e-8c03-345bb8c30851

6 files changed, 30 insertions, 0 deletions

diff --git a/make/cgl-macosx.cfg b/make/cgl-macosx.cfg
index c7a7f3841..dab1ec206 100644
--- a/make/cgl-macosx.cfg
+++ b/make/cgl-macosx.cfg
@@ -45,6 +45,8 @@ CustomCCode extern void setContextTextureImageToPBuffer(void* nsContext, void* p
 
 CustomCCode extern void* getProcAddress(const char *procName);
 
+CustomCCode extern void setSwapInterval(void* nsContext, int interval);
+
 # Implement the first argument to getProcAddress as String instead
 # of byte[]
 ArgumentIsString getProcAddress 0
diff --git a/make/gl-common.cfg b/make/gl-common.cfg
index 703715979..20bcaebe0 100644
--- a/make/gl-common.cfg
+++ b/make/gl-common.cfg
@@ -332,6 +332,16 @@ CustomJavaCode GL    * {@link GLX#glXAllocateMemoryNV} extension.
 CustomJavaCode GL    */
 CustomJavaCode GL   public java.nio.ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3);
 
+CustomJavaCode GL   /** Provides a platform-independent way to specify the minimum swap
+CustomJavaCode GL       interval for buffer swaps. An argument of 0 disables
+CustomJavaCode GL       sync-to-vertical-refresh completely, while an argument of 1
+CustomJavaCode GL       causes the application to wait until the next vertical refresh
+CustomJavaCode GL       until swapping buffers. The default, which is platform-specific,
+CustomJavaCode GL       is usually either 0 or 1. This function is not guaranteed to
+CustomJavaCode GL       have an effect, and in particular only affects heavyweight
+CustomJavaCode GL       onscreen components. */
+CustomJavaCode GL   public void setSwapInterval(int interval);
+
 #
 # Directives needed when processing wglext.h on Windows and other platforms
 #
diff --git a/make/gl-impl-macosx.cfg b/make/gl-impl-macosx.cfg
index 8ce128851..5a09750dd 100644
--- a/make/gl-impl-macosx.cfg
+++ b/make/gl-impl-macosx.cfg
@@ -73,5 +73,9 @@ CustomJavaCode MacOSXGLImpl    // FIXME
 CustomJavaCode MacOSXGLImpl    throw new GLException("Not yet implemented");
 CustomJavaCode MacOSXGLImpl  }
 
+CustomJavaCode MacOSXGLImpl  public void setSwapInterval(int interval) { // FIXME: not implemented yet
+CustomJavaCode MacOSXGLImpl  	_context.setSwapInterval(interval);
+CustomJavaCode MacOSXGLImpl  }
+
 IncludeAs CustomJavaCode MacOSXGLImpl gl-impl-CustomJavaCode.java
 IncludeAs CustomCCode gl-impl-CustomCCode.c
diff --git a/make/gl-impl-win32.cfg b/make/gl-impl-win32.cfg
index bf4f93998..252425659 100644
--- a/make/gl-impl-win32.cfg
+++ b/make/gl-impl-win32.cfg
@@ -60,5 +60,11 @@ CustomJavaCode WindowsGLImpl   public java.nio.ByteBuffer glAllocateMemoryNV(int
 CustomJavaCode WindowsGLImpl     return wglAllocateMemoryNV(arg0, arg1, arg2, arg3);
 CustomJavaCode WindowsGLImpl   }
 
+CustomJavaCode WindowsGLImpl   public void setSwapInterval(int interval) {
+CustomJavaCode WindowsGLImpl     if (isExtensionAvailable("WGL_EXT_swap_control")) {
+CustomJavaCode WindowsGLImpl       wglSwapIntervalEXT(interval);
+CustomJavaCode WindowsGLImpl     }
+CustomJavaCode WindowsGLImpl   }
+
 IncludeAs CustomJavaCode WindowsGLImpl gl-impl-CustomJavaCode.java
 IncludeAs CustomCCode gl-impl-CustomCCode.c
diff --git a/make/gl-impl-x11.cfg b/make/gl-impl-x11.cfg
index 33527d351..b60a28787 100644
--- a/make/gl-impl-x11.cfg
+++ b/make/gl-impl-x11.cfg
@@ -57,5 +57,11 @@ CustomJavaCode X11GLImpl   public java.nio.ByteBuffer glAllocateMemoryNV(int arg
 CustomJavaCode X11GLImpl     return glXAllocateMemoryNV(arg0, arg1, arg2, arg3);
 CustomJavaCode X11GLImpl   }
 
+CustomJavaCode X11GLImpl   public void setSwapInterval(int interval) {
+CustomJavaCode X11GLImpl     if (isExtensionAvailable("GLX_SGI_swap_control")) {
+CustomJavaCode X11GLImpl       glXSwapIntervalSGI(interval);
+CustomJavaCode X11GLImpl     }
+CustomJavaCode X11GLImpl   }
+
 IncludeAs CustomJavaCode X11GLImpl gl-impl-CustomJavaCode.java
 IncludeAs CustomCCode gl-impl-CustomCCode.c
diff --git a/make/stub_includes/macosx/window-system.c b/make/stub_includes/macosx/window-system.c
index e5ba4307f..b30c252f3 100644
--- a/make/stub_includes/macosx/window-system.c
+++ b/make/stub_includes/macosx/window-system.c
@@ -32,3 +32,5 @@ void setContextPBuffer(void* nsContext, void* pBuffer);
 void setContextTextureImageToPBuffer(void* nsContext, void* pBuffer, int colorBuffer);
 
 void* getProcAddress(const char *procName);
+
+void setSwapInterval(void* nsContext, int interval);