diff options
Diffstat (limited to 'bundles/org.eclipse.swt.opengl/motif/org/eclipse/swt/opengl/GLContext.java')
-rw-r--r-- | bundles/org.eclipse.swt.opengl/motif/org/eclipse/swt/opengl/GLContext.java | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/bundles/org.eclipse.swt.opengl/motif/org/eclipse/swt/opengl/GLContext.java b/bundles/org.eclipse.swt.opengl/motif/org/eclipse/swt/opengl/GLContext.java deleted file mode 100644 index 29df45c7bd..0000000000 --- a/bundles/org.eclipse.swt.opengl/motif/org/eclipse/swt/opengl/GLContext.java +++ /dev/null @@ -1,303 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2004 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.opengl; - - -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.internal.motif.*; -import org.eclipse.swt.opengl.internal.motif.*; - -/** - * Instances of <code>GLContext</code> are used to draw on swt <code>Drawable</code>s - * through invocations of provided OpenGL functions. - * <p> - * Application code must explicitly invoke the <code>GLContext.dispose ()</code> - * method to release the operating system resources managed by each instance - * when those instances are no longer required. This is <em>particularly</em> - * important on Windows95 and Windows98 where the operating system has a limited - * number of device contexts available. - * </p> - */ -public class GLContext { - int handle; - int gc; - GCData data; - Drawable drawable; - int selectBufferPtr = 0; - - static final int MSB_FIRST = 1; - static final int LSB_FIRST = 2; - - /** - * Constructs a new instance of this class which has been - * configured to draw on the specified drawable. - * <p> - * You must dispose the <code>GLContext</code> when it is no longer required. - * </p> - * - * @param drawable the drawable to draw on - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the drawable is null</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES if a handle could not be obtained for gc creation</li> - * <li>ERROR_UNSUPPORTED_DEPTH - if the current display depth is not supported</li> - * </ul> - */ - public GLContext (Drawable drawable) { - if (drawable == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); - this.drawable = drawable; - this.data = new GCData (); - gc = drawable.internal_new_GC (data); - if (gc == 0) SWT.error (SWT.ERROR_NO_HANDLES); - int xDisplay = data.display; - int screen = OS.XDefaultScreen (xDisplay); - int depth = OS.XDefaultDepthOfScreen (OS.XDefaultScreenOfDisplay (xDisplay)); - int attrib [] = { - XGL.GLX_LEVEL, - 0, - XGL.GLX_RGBA, - XGL.GLX_DOUBLEBUFFER, -// XGL.GLX_DEPTH_SIZE, -// depth, - 0 - }; - int infoPtr = XGL.glXChooseVisual (xDisplay, screen, attrib); - if (infoPtr == 0) SWT.error (SWT.ERROR_UNSUPPORTED_DEPTH); - XVisualInfo info = new XVisualInfo (); - XGL.memmove (info, infoPtr, XVisualInfo.sizeof); - OS.XFree (infoPtr); - handle = XGL.glXCreateContext (xDisplay, info, 0, false); - if (handle == 0) SWT.error (SWT.ERROR_NO_HANDLES); - } - - public ImageData convertImageData (ImageData source) { - PaletteData palette = new PaletteData (0xff0000, 0xff00, 0xff); - ImageData newSource = new ImageData (source.width, source.height, 24, palette); - ImageDataUtil.blit ( - 1, - source.data, - source.depth, - source.bytesPerLine, - (source.depth != 16) ? MSB_FIRST : LSB_FIRST, - 0, - 0, - source.width, - source.height, - source.palette.redMask, - source.palette.greenMask, - source.palette.blueMask, - 255, - null, - 0, - 0, - 0, - newSource.data, - newSource.depth, - newSource.bytesPerLine, - (newSource.depth != 16) ? MSB_FIRST : LSB_FIRST, - 0, - 0, - newSource.width, - newSource.height, - newSource.palette.redMask, - newSource.palette.greenMask, - newSource.palette.blueMask, - false, - true); - - return newSource; - } - - /** - * Disposes of the operating system resources associated with - * the receiver. Applications must dispose of all <code>GLContext</code>s - * that they allocate. - */ - public void dispose () { - if (handle == 0) return; - int xDisplay = data.display; - if (XGL.glXGetCurrentContext () == handle) { - XGL.glXMakeCurrent (xDisplay, 0, 0); - } - if (selectBufferPtr != 0) OS.XtFree (selectBufferPtr); - XGL.glXDestroyContext (xDisplay, handle); - handle = 0; - // drawable may be disposed - try { - drawable.internal_dispose_GC (gc, data); - } catch (SWTException e) { - } - gc = 0; - data.display = data.drawable = data.colormap = 0; - /*data.fontList =*/ data.clipRgn = data.renderTable = 0; - drawable = null; - data.device = null; - data.image = null; - //data.codePage = null; - data = null; - } - - public int[] getSelectBuffer (int selectBufferPtr, int[] selectBuffer) { - OS.memmove (selectBuffer, selectBufferPtr, selectBuffer.length * 4); - return selectBuffer; - } - - public int getSelectBufferPtr (int[] selectBuffer) { - if (selectBufferPtr == 0) { - selectBufferPtr = OS.XtMalloc (selectBuffer.length * 4); - } - OS.memmove (selectBufferPtr, selectBuffer, selectBuffer.length * 4); - return selectBufferPtr; - } - - /** - * Returns a boolean indicating whether the receiver is the current - * <code>GLContext</code>. - * - * @return true if the receiver is the current <code>GLContext</code>, - * false otherwise - * @exception SWTError <ul> - * <li>ERROR_GRAPHIC_DISPOSED if the receiver is disposed</li> - * </ul> - */ - public boolean isCurrent () { - if (isDisposed ()) SWT.error (SWT.ERROR_GRAPHIC_DISPOSED); - return XGL.glXGetCurrentContext () == handle; - } - - /** - * Returns a boolean indicating whether the <code>GLContext</code> has been - * disposed. - * <p> - * This method gets the dispose state for the <code>GLContext</code>. - * When a <code>GLContext</code> has been disposed, it is an error to - * invoke any other method using the <code>GLContext</code>. - * - * @return true if the <code>GLContext</code> is disposed, false otherwise - */ - public boolean isDisposed () { - return handle == 0; - } - - /** - * Loads the specified bitmap font. - * - * @param fdata - * @param device - * @param base - * @param first - * @param count - */ - public void loadBitmapFont (FontData fdata, Device device, int base, int startIndex, int length) { - /* Temporary code, due some problems when running on UTF-8 loadBitmapFont () - * is restrict to works only for ascii. - * Note: en_US.ISO8859-1 also code be used. - */ - fdata.setLocale ("C"); - Font font = new Font (device, fdata); - int fontList = font.handle; - int[] buffer = new int [1]; - if (!OS.XmFontListInitFontContext (buffer, fontList)) return; - int context = buffer [0]; - XFontStruct fontStruct = new XFontStruct (); - int fontListEntry; - int[] fontStructPtr = new int [1]; - int[] fontNamePtr = new int [1]; - int xfont = 0; - // go through each entry in the font list - while ((fontListEntry = OS.XmFontListNextEntry (context)) != 0) { - int fontPtr = OS.XmFontListEntryGetFont (fontListEntry, buffer); - if (buffer [0] == OS.XmFONT_IS_FONT) { - // FontList contains a single font - OS.memmove (fontStruct, fontPtr, 20 * 4); - xfont = fontStruct.fid; - } else { - // FontList contains a fontSet - int nFonts = OS.XFontsOfFontSet (fontPtr, fontStructPtr, fontNamePtr); - int[] fontStructs = new int [nFonts]; - OS.memmove (fontStructs, fontStructPtr [0], nFonts * 4); - // Go through each fontStruct in the font set. - for (int i = 0; i < nFonts; i++) { - OS.memmove (fontStruct, fontStructs [i], XFontStruct.sizeof); - xfont = fontStruct.fid; - } - } - } - if (xfont != 0) { - XGL.glXUseXFont (xfont, startIndex, length, base); - } - font.dispose (); - OS.XmFontListFreeFontContext (context); - } - - /** - * Loads the specified outline font. - * - * @param fdata - * @param device - * @param base - * @param first - * @param count - * @param deviation - * @param extrusion - * @param format - * @param lpgmf - */ - public void loadOutlineFont (FontData fdata, Device device, int base, int first, - int count, float deviation, float extrusion, int format, GLYPHMETRICSFLOAT[] lpgmf) { - // stub - } - - /** - * Resizes the receiver. - * - * @param x - * @param y - * @param width - * @param height - */ - public void resize (int x, int y, int width, int height) { - if (height == 0) height = 1; - GL.glViewport (x, y, width, height); - GL.glMatrixMode (GL.GL_PROJECTION); - GL.glLoadIdentity (); - GLU.gluPerspective (45.0f, (float) width / (float) height, 0.1f, 100.0f); - GL.glMatrixMode (GL.GL_MODELVIEW); - GL.glLoadIdentity (); - } - - /** - * Sets the receiver to be the current <code>GLContext</code>. - * - * @exception SWTError <ul> - * <li>ERROR_GRAPHIC_DISPOSED if the receiver is disposed</li> - * </ul> - */ - public void setCurrent () { - if (isDisposed ()) SWT.error (SWT.ERROR_GRAPHIC_DISPOSED); - if (XGL.glXGetCurrentContext () == handle) return; - XGL.glXMakeCurrent (data.display, data.drawable, handle); - } - - /** - * Swaps the receiver's buffers. - * - * @exception SWTError <ul> - * <li>ERROR_GRAPHIC_DISPOSED if the receiver is disposed</li> - * </ul> - */ - public void swapBuffers () { - if (isDisposed ()) SWT.error (SWT.ERROR_GRAPHIC_DISPOSED); - XGL.glXSwapBuffers (data.display, data.drawable); - } -} |