diff options
| -rw-r--r-- | bundles/org.eclipse.swt.opengl/gtk/org/eclipse/swt/opengl/GLCanvas.java | 61 |
1 files changed, 53 insertions, 8 deletions
diff --git a/bundles/org.eclipse.swt.opengl/gtk/org/eclipse/swt/opengl/GLCanvas.java b/bundles/org.eclipse.swt.opengl/gtk/org/eclipse/swt/opengl/GLCanvas.java index a3c049780f..754895f4d6 100644 --- a/bundles/org.eclipse.swt.opengl/gtk/org/eclipse/swt/opengl/GLCanvas.java +++ b/bundles/org.eclipse.swt.opengl/gtk/org/eclipse/swt/opengl/GLCanvas.java @@ -11,10 +11,11 @@ import org.eclipse.swt.internal.opengl.gtk.*; */ public class GLCanvas extends Canvas { - private int /*long*/ xdisplay; - private int /*long*/ xid; - private int /*long*/ context; - private int /*long*/ glWindow; + int /*long*/ xdisplay; + int /*long*/ xid; + int /*long*/ context; + int /*long*/ glWindow; + XVisualInfo vinfo; private static final int MAX_ATTRIBUTES = 32; @@ -102,13 +103,13 @@ public GLCanvas (Composite parent, int style, GLData data) { glxAttrib [pos++] = 0; int infoPtr = GLX.glXChooseVisual (xdisplay, xscreen, glxAttrib); if (infoPtr == 0) SWT.error (SWT.ERROR_UNSUPPORTED_DEPTH); - XVisualInfo info = new XVisualInfo (); - GLX.memmove (info, infoPtr, XVisualInfo.sizeof); + vinfo = new XVisualInfo (); + GLX.memmove (vinfo, infoPtr, XVisualInfo.sizeof); OS.XFree (infoPtr); int /*long*/ screen = OS.gdk_screen_get_default (); - int /*long*/ gdkvisual = OS.gdk_x11_screen_lookup_visual (screen, info.visualid); + int /*long*/ gdkvisual = OS.gdk_x11_screen_lookup_visual (screen, vinfo.visualid); //context = GLX.glXCreateContext (xdisplay, info, share == null ? 0 : share.context, true); - context = GLX.glXCreateContext (xdisplay, info, 0, true); + context = GLX.glXCreateContext (xdisplay, vinfo, 0, true); if (context == 0) SWT.error (SWT.ERROR_NO_HANDLES); GdkWindowAttr attrs = new GdkWindowAttr (); attrs.width = 1; @@ -163,6 +164,50 @@ public GLCanvas (Composite parent, int style, GLData data) { } /** + * Returns a GLData object describing the created context. + * + * @return GLData description of the OpenGL context attributes + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public GLData getGLData () { + checkWidget (); + GLData data = new GLData (); + int [] value = new int [1]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_DOUBLEBUFFER, value); + data.doubleBuffer = value [0] != 0; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_STEREO, value); + data.stereo = value [0] != 0; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_RED_SIZE, value); + data.redSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_GREEN_SIZE, value); + data.greenSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_BLUE_SIZE, value); + data.blueSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_ALPHA_SIZE, value); + data.alphaSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_DEPTH_SIZE, value); + data.depthSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_STENCIL_SIZE, value); + data.stencilSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_ACCUM_RED_SIZE, value); + data.accumRedSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_ACCUM_GREEN_SIZE, value); + data.accumGreenSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_ACCUM_BLUE_SIZE, value); + data.accumBlueSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_ACCUM_ALPHA_SIZE, value); + data.accumAlphaSize = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_SAMPLE_BUFFERS, value); + data.sampleBuffers = value [0]; + GLX.glXGetConfig (xdisplay, vinfo, GLX.GLX_SAMPLES, value); + data.samples = value [0]; + return data; +} + +/** * Returns a boolean indicating whether the receiver's OpenGL context * is the current context. * |