diff options
Diffstat (limited to 'bundles/org.eclipse.swt.opengl/gtk/org/eclipse/swt/opengl/GLCanvas.java')
| -rw-r--r-- | bundles/org.eclipse.swt.opengl/gtk/org/eclipse/swt/opengl/GLCanvas.java | 257 |
1 files changed, 0 insertions, 257 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 deleted file mode 100644 index 113f3ed8f9..0000000000 --- a/bundles/org.eclipse.swt.opengl/gtk/org/eclipse/swt/opengl/GLCanvas.java +++ /dev/null @@ -1,257 +0,0 @@ -package org.eclipse.swt.opengl; - -import org.eclipse.swt.*; -import org.eclipse.swt.widgets.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.internal.gtk.*; -import org.eclipse.swt.internal.opengl.gtk.*; -import org.eclipse.opengl.*; - -/** - * GLCanvas is a widget capable of displaying OpenGL content. - */ - -public class GLCanvas extends Canvas { - int /*long*/ xdisplay; - int /*long*/ xid; - int /*long*/ context; - int /*long*/ glWindow; - XVisualInfo vinfo; - - private static final int MAX_ATTRIBUTES = 32; - -/** - * Create a GLCanvas widget using the attributes described in the GLData - * object provided. - * - * @param parent a composite widget - * @param style the bitwise OR'ing of widget styles - * @param data the requested attributes of the GLCanvas - * - * @exception IllegalArgumentException - * <ul><li>ERROR_NULL_ARGUMENT when the data is null - * <li>ERROR_UNSUPPORTED_DEPTH when the requested attributes cannot be provided</ul> - * @exception SWTException - * <ul><li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread - * <li>ERROR_CANNOT_CREATE_OBJECT when failed to create OLE Object - * <li>ERROR_CANNOT_OPEN_FILE when failed to open file - * <li>ERROR_INTERFACE_NOT_FOUND when unable to create callbacks for OLE Interfaces - * <li>ERROR_INVALID_CLASSID - * </ul> - */ -public GLCanvas (Composite parent, int style, GLData data) { - super (parent, style); - if (data == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); - int glxAttrib [] = new int [MAX_ATTRIBUTES]; - int pos = 0; - - OS.gtk_widget_realize (handle); - int /*long*/ window = OS.GTK_WIDGET_WINDOW (handle); - xdisplay = OS.gdk_x11_drawable_get_xdisplay (window); - int xscreen = OS.XDefaultScreen (xdisplay); - - glxAttrib [pos++] = GLX.GLX_RGBA; - if (data.doubleBuffer) glxAttrib [pos++] = GLX.GLX_DOUBLEBUFFER; - if (data.stereo) glxAttrib [pos++] = GLX.GLX_STEREO; - if (data.redSize > 0) { - glxAttrib [pos++] = GLX.GLX_RED_SIZE; - glxAttrib [pos++] = data.redSize; - } - if (data.greenSize > 0) { - glxAttrib [pos++] = GLX.GLX_GREEN_SIZE; - glxAttrib [pos++] = data.greenSize; - } - if (data.blueSize > 0) { - glxAttrib [pos++] = GLX.GLX_BLUE_SIZE; - glxAttrib [pos++] = data.blueSize; - } - if (data.alphaSize > 0) { - glxAttrib [pos++] = GLX.GLX_ALPHA_SIZE; - glxAttrib [pos++] = data.alphaSize; - } - if (data.depthSize > 0) { - glxAttrib [pos++] = GLX.GLX_DEPTH_SIZE; - glxAttrib [pos++] = data.depthSize; - } - if (data.stencilSize > 0) { - glxAttrib [pos++] = GLX.GLX_STENCIL_SIZE; - glxAttrib [pos++] = data.stencilSize; - } - if (data.accumRedSize > 0) { - glxAttrib [pos++] = GLX.GLX_ACCUM_RED_SIZE; - glxAttrib [pos++] = data.accumRedSize; - } - if (data.accumGreenSize > 0) { - glxAttrib [pos++] = GLX.GLX_ACCUM_GREEN_SIZE; - glxAttrib [pos++] = data.accumGreenSize; - } - if (data.accumBlueSize > 0) { - glxAttrib [pos++] = GLX.GLX_ACCUM_BLUE_SIZE; - glxAttrib [pos++] = data.accumBlueSize; - } - if (data.accumAlphaSize > 0) { - glxAttrib [pos++] = GLX.GLX_ACCUM_ALPHA_SIZE; - glxAttrib [pos++] = data.accumAlphaSize; - } - if (data.sampleBuffers > 0) { - glxAttrib [pos++] = GLX.GLX_SAMPLE_BUFFERS; - glxAttrib [pos++] = data.sampleBuffers; - } - if (data.samples > 0) { - glxAttrib [pos++] = GLX.GLX_SAMPLES; - glxAttrib [pos++] = data.samples; - } - glxAttrib [pos++] = 0; - int infoPtr = GLX.glXChooseVisual (xdisplay, xscreen, glxAttrib); - if (infoPtr == 0) SWT.error (SWT.ERROR_UNSUPPORTED_DEPTH); - 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, vinfo.visualid); - //context = GLX.glXCreateContext (xdisplay, info, share == null ? 0 : share.context, true); - context = GLX.glXCreateContext (xdisplay, vinfo, 0, true); - if (context == 0) SWT.error (SWT.ERROR_NO_HANDLES); - GdkWindowAttr attrs = new GdkWindowAttr (); - attrs.width = 1; - attrs.height = 1; - attrs.event_mask = OS.GDK_KEY_PRESS_MASK | OS.GDK_KEY_RELEASE_MASK | - OS.GDK_FOCUS_CHANGE_MASK | OS.GDK_POINTER_MOTION_MASK | - OS.GDK_BUTTON_PRESS_MASK | OS.GDK_BUTTON_RELEASE_MASK | - OS.GDK_ENTER_NOTIFY_MASK | OS.GDK_LEAVE_NOTIFY_MASK | - OS.GDK_EXPOSURE_MASK | OS.GDK_VISIBILITY_NOTIFY_MASK; - attrs.window_type = OS.GDK_WINDOW_CHILD; - attrs.visual = gdkvisual; - glWindow = OS.gdk_window_new (window, attrs, OS.GDK_WA_VISUAL); - OS.gdk_window_set_user_data (glWindow, handle); - xid = OS.gdk_x11_drawable_get_xid (glWindow); - OS.gdk_window_show (glWindow); - - Listener listener = new Listener () { - public void handleEvent (Event event) { - switch (event.type) { - case SWT.Paint: - /** - * Bug in MESA. MESA does some nasty sort of polling to try - * and ensure that their buffer sizes match the current X state. - * This state can be updated using glViewport(). - * FIXME: There has to be a better way of doing this. - */ - int [] viewport = new int [4]; - GL.glGetIntegerv (GL.GL_VIEWPORT, viewport); - GL.glViewport (viewport [0],viewport [1],viewport [2],viewport [3]); - break; - case SWT.Resize: - Rectangle clientArea = getClientArea(); - OS.gdk_window_move (glWindow, clientArea.x, clientArea.y); - OS.gdk_window_resize (glWindow, clientArea.width, clientArea.height); - break; - case SWT.Dispose: - if (context != 0) { - if (GLX.glXGetCurrentContext () == context) { - GLX.glXMakeCurrent(xdisplay, 0, 0); - } - GLX.glXDestroyContext (xdisplay, context); - context = 0; - } - if (glWindow != 0) { - OS.gdk_window_destroy (glWindow); - glWindow = 0; - } - break; - } - } - }; - addListener (SWT.Resize, listener); - addListener (SWT.Paint, listener); - addListener (SWT.Dispose, listener); -} - -/** - * 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. - * - * @return true if the receiver holds the current OpenGL context, - * false otherwise - * @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 boolean isCurrent () { - checkWidget (); - return GLX.glXGetCurrentContext () == context; -} - -/** - * Sets the OpenGL context associated with this GLCanvas to be the - * current GL context. - * - * @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 void setCurrent () { - checkWidget (); - if (GLX.glXGetCurrentContext () == context) return; - GLX.glXMakeCurrent (xdisplay, xid, context); -} - -/** - * Swaps the front and back color buffers. - * - * @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 void swapBuffers () { - checkWidget (); - GLX.glXSwapBuffers (xdisplay, xid); -} -} |