Java GDIWindowSurfaceData.createData方法代码示例

import sun.java2d.windows.GDIWindowSurfaceData; //导入方法依赖的package包/类
/**
 * Creates (or returns a cached one) gdi surface for the same peer as
 * the passed d3dw surface has.
 *
 * @param d3dw surface used as key into the cache
 * @return gdi window surface associated with the d3d window surfaces' peer
 */
private synchronized SurfaceData getGdiSurface(D3DWindowSurfaceData d3dw) {
    if (gdiSurfaces == null) {
        gdiSurfaces =
            new HashMap<D3DWindowSurfaceData, GDIWindowSurfaceData>();
    }
    GDIWindowSurfaceData gdisd = gdiSurfaces.get(d3dw);
    if (gdisd == null) {
        gdisd = GDIWindowSurfaceData.createData(d3dw.getPeer());
        gdiSurfaces.put(d3dw, gdisd);
    }
    return gdisd;
}
 

import sun.java2d.windows.GDIWindowSurfaceData; //导入方法依赖的package包/类
/**
 * Creates a new SurfaceData that will be associated with the given
 * WComponentPeer.
 */
@Override
public SurfaceData createSurfaceData(WComponentPeer peer,
                                     int numBackBuffers)
{
    SurfaceData sd = WGLSurfaceData.createData(peer);
    if (sd == null) {
        sd = GDIWindowSurfaceData.createData(peer);
    }
    return sd;
}
 

import sun.java2d.windows.GDIWindowSurfaceData; //导入方法依赖的package包/类
/**
 * If possible, creates a D3DWindowSurfaceData (which is actually
 * a back-buffer surface). If the creation fails, returns GDI
 * onscreen surface instead.
 *
 * Note that the created D3D surface does not initialize the native
 * resources (and is marked lost) to avoid wasting video memory. It is
 * restored when a graphics object is requested from the peer.
 *
 * Note that this method is called from a synchronized block in
 * WComponentPeer, so we don't need to synchronize
 *
 * Note that we only create a substibute d3dw surface if certain conditions
 * are met
 * <ul>
 *  <li>the fake d3d rendering on screen is not disabled via flag
 *  <li>d3d on the device is enabled
 *  <li>surface is larger than MIN_WIN_SIZE (don't bother for smaller ones)
 *  <li>it doesn't have a backBuffer for a BufferStrategy already
 *  <li>the peer is either Canvas, Panel, Window, Frame,
 *  Dialog or EmbeddedFrame
 * </ul>
 *
 * @param gc GraphicsConfiguration on associated with the surface
 * @param peer peer for which the surface is to be created
 * @param bbNum number of back-buffers requested. if this number is >0,
 * method returns GDI surface (we don't want to have two swap chains)
 * @param isResize whether this surface is being created in response to
 * a component resize event. This determines whether a repaint event will
 * be issued after a surface is created: it will be if <code>isResize</code>
 * is <code>true</code>.
 * @return surface data to be use for onscreen rendering
 */
@Override
public SurfaceData createScreenSurface(Win32GraphicsConfig gc,
                                       WComponentPeer peer,
                                       int bbNum, boolean isResize)
{
    if (done || !(gc instanceof D3DGraphicsConfig)) {
        return super.createScreenSurface(gc, peer, bbNum, isResize);
    }

    SurfaceData sd = null;

    if (canUseD3DOnScreen(peer, gc, bbNum)) {
        try {
            // note that the created surface will be in the "lost"
            // state, it will be restored prior to rendering to it
            // for the first time. This is done so that vram is not
            // wasted for surfaces never rendered to
            sd = D3DSurfaceData.createData(peer);
        }  catch (InvalidPipeException ipe) {
            sd = null;
        }
    }
    if (sd == null) {
        sd = GDIWindowSurfaceData.createData(peer);
        // note that we do not add this surface to the list of cached gdi
        // surfaces as there's no d3dw surface to associate it with;
        // this peer will have a gdi surface until next time a surface
        // will need to be replaced
    }

    if (isResize) {
        // since we'd potentially replaced the back-buffer surface
        // (either with another bb, or a gdi one), the
        // component will need to be completely repainted;
        // this only need to be done when the surface is created in
        // response to a resize event since when a component is created it
        // will be repainted anyway
        repaintPeerTarget(peer);
    }

    return sd;
}
 

import sun.java2d.windows.GDIWindowSurfaceData; //导入方法依赖的package包/类
/**
 * Creates a new SurfaceData that will be associated with the given
 * WComponentPeer.
 */
public SurfaceData createSurfaceData(WComponentPeer peer,
                                     int numBackBuffers)
{
    return GDIWindowSurfaceData.createData(peer);
}
 

import sun.java2d.windows.GDIWindowSurfaceData; //导入方法依赖的package包/类
/**
 * If possible, creates a D3DWindowSurfaceData (which is actually
 * a back-buffer surface). If the creation fails, returns GDI
 * onscreen surface instead.
 *
 * Note that the created D3D surface does not initialize the native
 * resources (and is marked lost) to avoid wasting video memory. It is
 * restored when a graphics object is requested from the peer.
 *
 * Note that this method is called from a synchronized block in
 * WComponentPeer, so we don't need to synchronize
 *
 * Note that we only create a substibute d3dw surface if certain conditions
 * are met
 * <ul>
 *  <li>the fake d3d rendering on screen is not disabled via flag
 *  <li>d3d on the device is enabled
 *  <li>surface is larger than MIN_WIN_SIZE (don't bother for smaller ones)
 *  <li>it doesn't have a backBuffer for a BufferStrategy already
 *  <li>the peer is either Canvas, Panel, Window, Frame,
 *  Dialog or EmbeddedFrame
 * </ul>
 *
 * @param gc GraphicsConfiguration on associated with the surface
 * @param peer peer for which the surface is to be created
 * @param bbNum number of back-buffers requested. if this number is >0,
 * method returns GDI surface (we don't want to have two swap chains)
 * @param isResize whether this surface is being created in response to
 * a component resize event. This determines whether a repaint event will
 * be issued after a surface is created: it will be if {@code isResize}
 * is {@code true}.
 * @return surface data to be use for onscreen rendering
 */
@Override
public SurfaceData createScreenSurface(Win32GraphicsConfig gc,
                                       WComponentPeer peer,
                                       int bbNum, boolean isResize)
{
    if (done || !(gc instanceof D3DGraphicsConfig)) {
        return super.createScreenSurface(gc, peer, bbNum, isResize);
    }

    SurfaceData sd = null;

    if (canUseD3DOnScreen(peer, gc, bbNum)) {
        try {
            // note that the created surface will be in the "lost"
            // state, it will be restored prior to rendering to it
            // for the first time. This is done so that vram is not
            // wasted for surfaces never rendered to
            sd = D3DSurfaceData.createData(peer);
        }  catch (InvalidPipeException ipe) {
            sd = null;
        }
    }
    if (sd == null) {
        sd = GDIWindowSurfaceData.createData(peer);
        // note that we do not add this surface to the list of cached gdi
        // surfaces as there's no d3dw surface to associate it with;
        // this peer will have a gdi surface until next time a surface
        // will need to be replaced
    }

    if (isResize) {
        // since we'd potentially replaced the back-buffer surface
        // (either with another bb, or a gdi one), the
        // component will need to be completely repainted;
        // this only need to be done when the surface is created in
        // response to a resize event since when a component is created it
        // will be repainted anyway
        repaintPeerTarget(peer);
    }

    return sd;
}