本文整理匯總了Java中javax.media.opengl.GL.isExtensionAvailable方法的典型用法代碼示例。如果您正苦於以下問題：Java GL.isExtensionAvailable方法的具體用法？Java GL.isExtensionAvailable怎麽用？Java GL.isExtensionAvailable使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類javax.media.opengl.GL的用法示例。
在下文中一共展示了GL.isExtensionAvailable方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: isOpenGLAvailable
import javax.media.opengl.GL; //導入方法依賴的package包/類
/**
* Check current graphic card/drivers OpenGL capabilities to see if they match those required by WorldWind to work
* @return true if we are good, false otherwise
*/
public boolean isOpenGLAvailable() {
if (_openGlAvailable == null) {
synchronized (this) {
if (_openGlAvailable == null) {
try {
// create an offscreen context with the current graphic device
final GLProfile glProfile = GLProfile.getDefault(GLProfile.getDefaultDevice());
final GLCapabilities caps = new GLCapabilities(glProfile);
caps.setOnscreen(false);
caps.setPBuffer(false);
final GLDrawable offscreenDrawable = GLDrawableFactory.getFactory(glProfile).createOffscreenDrawable(null, caps,
new DefaultGLCapabilitiesChooser(), 1, 1);
offscreenDrawable.setRealized(true);
final GLContext context = offscreenDrawable.createContext(null);
final int additionalCtxCreationFlags = 0;
context.setContextCreationFlags(additionalCtxCreationFlags);
context.makeCurrent();
final GL gl = context.getGL();
// WWJ will need those to render the globe
_openGlAvailable = gl.isExtensionAvailable(GLExtensions.EXT_texture_compression_s3tc)
|| gl.isExtensionAvailable(GLExtensions.NV_texture_compression_vtc);
} catch (final Throwable e) {
_openGlAvailable = false;
}
}
}
}
return _openGlAvailable;
}