Examples of sun.java2d.pipe.hw.ExtendedBufferCapabilities

sun.java2d.pipe.hw.ExtendedBufferCapabilities
Provides extended BufferStrategy capabilities, allowing to specify the type of vertical refresh synchronization for a buffer strategy. This BS capability is always page flipping because v-sync is only relevant to flipping buffer strategies. Note that asking for a v-synced BS doesn't necessarily guarantee that it will be v-synced since the vsync capability may be disabled in the driver, or there may be other restriction (like a number of v-synced buffer strategies allowed per vm). Because of this {@code createBufferStrategy} doesn'tthrow {@code AWTException} when a v-synced BS could not be created whenrequested. @see java.awt.Canvas#createBufferStrategy(int,BufferCapabilities) @see java.awt.Window#createBufferStrategy(int,BufferCapabilities)

        // eat the exception and return null.
        private BufferStrategy createBufferStrategy(Container root,
                boolean isVsynced) {
            BufferCapabilities caps;
            if (isVsynced) {
                caps = new ExtendedBufferCapabilities(
                    new ImageCapabilities(true), new ImageCapabilities(true),
                    BufferCapabilities.FlipContents.COPIED,
                    ExtendedBufferCapabilities.VSyncType.VSYNC_ON);
            } else {
                caps = new BufferCapabilities(

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        // eat the exception and return null.
        private BufferStrategy createBufferStrategy(Container root, 
                boolean isVsynced) {
            BufferCapabilities caps;
            if (isVsynced) {
                caps = new ExtendedBufferCapabilities(
        new ImageCapabilities(true), new ImageCapabilities(true),
                    BufferCapabilities.FlipContents.COPIED, 
                    ExtendedBufferCapabilities.VSyncType.VSYNC_ON);
            } else {
                caps = new BufferCapabilities(

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                destroyBuffers();
                // ... then recreate the backbuffers
            }


            if (caps instanceof ExtendedBufferCapabilities) {
                ExtendedBufferCapabilities ebc =
                    (ExtendedBufferCapabilities)caps;
                if (ebc.getVSync() == VSYNC_ON) {
                    // if this buffer strategy is not allowed to be v-synced,
                    // change the caps that we pass to the peer but keep on
                    // trying to create v-synced buffers;
                    // do not throw IAE here in case it is disallowed, see
                    // ExtendedBufferCapabilities for more info
                    if (!VSyncedBSManager.vsyncAllowed(this)) {
                        caps = ebc.derive(VSYNC_DEFAULT);
                    }
                }
            }


            peer.createBuffers(numBuffers, caps);

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                destroyBuffers();
                // ... then recreate the backbuffers
            }


            if (caps instanceof ExtendedBufferCapabilities) {
                ExtendedBufferCapabilities ebc =
                    (ExtendedBufferCapabilities)caps;
                if (ebc.getVSync() == VSYNC_ON) {
                    // if this buffer strategy is not allowed to be v-synced,
                    // change the caps that we pass to the peer but keep on
                    // trying to create v-synced buffers;
                    // do not throw IAE here in case it is disallowed, see
                    // ExtendedBufferCapabilities for more info
                    if (!VSyncedBSManager.vsyncAllowed(this)) {
                        caps = ebc.derive(VSYNC_DEFAULT);
                    }
                }
            }


            peer.createBuffers(numBuffers, caps);

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        // eat the exception and return null.
        private BufferStrategy createBufferStrategy(Container root,
                boolean isVsynced) {
            BufferCapabilities caps;
            if (isVsynced) {
                caps = new ExtendedBufferCapabilities(
                    new ImageCapabilities(true), new ImageCapabilities(true),
                    BufferCapabilities.FlipContents.COPIED,
                    ExtendedBufferCapabilities.VSyncType.VSYNC_ON);
            } else {
                caps = new BufferCapabilities(

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                destroyBuffers();
                // ... then recreate the backbuffers
            }


            if (caps instanceof ExtendedBufferCapabilities) {
                ExtendedBufferCapabilities ebc =
                    (ExtendedBufferCapabilities)caps;
                if (ebc.getVSync() == VSYNC_ON) {
                    // if this buffer strategy is not allowed to be v-synced,
                    // change the caps that we pass to the peer but keep on
                    // trying to create v-synced buffers;
                    // do not throw IAE here in case it is disallowed, see
                    // ExtendedBufferCapabilities for more info
                    if (!VSyncedBSManager.vsyncAllowed(this)) {
                        caps = ebc.derive(VSYNC_DEFAULT);
                    }
                }
            }


            peer.createBuffers(numBuffers, caps);

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                if (forceback && peer instanceof BackBufferCapsProvider) {
                    BackBufferCapsProvider provider =
                        (BackBufferCapsProvider)peer;
                    BufferCapabilities caps = provider.getBackBufferCaps();
                    if (caps instanceof ExtendedBufferCapabilities) {
                        ExtendedBufferCapabilities ebc =
                            (ExtendedBufferCapabilities)caps;
                        if (ebc.getVSync() == VSYNC_ON &&
                            ebc.getFlipContents() == COPIED)
                        {
                            createVSynced = true;
                            forceback = false;
                        }
                    }

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            if (context instanceof Boolean) {
                forceback = ((Boolean)context).booleanValue();
                if (forceback) {
                    BufferCapabilities caps = peer.getBackBufferCaps();
                    if (caps instanceof ExtendedBufferCapabilities) {
                        ExtendedBufferCapabilities ebc =
                            (ExtendedBufferCapabilities)caps;
                        if (ebc.getVSync() == VSYNC_ON &&
                            ebc.getFlipContents() == COPIED)
                        {
                            createVSynced = true;
                            forceback = false;
                        }
                    }

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                destroyBuffers();
                // ... then recreate the backbuffers
            }


            if (caps instanceof ExtendedBufferCapabilities) {
                ExtendedBufferCapabilities ebc =
                    (ExtendedBufferCapabilities)caps;
                if (ebc.getVSync() == VSYNC_ON) {
                    // if this buffer strategy is not allowed to be v-synced,
                    // change the caps that we pass to the peer but keep on
                    // trying to create v-synced buffers;
                    // do not throw IAE here in case it is disallowed, see
                    // ExtendedBufferCapabilities for more info
                    if (!VSyncedBSManager.vsyncAllowed(this)) {
                        caps = ebc.derive(VSYNC_DEFAULT);
                    }
                }
            }


            peer.createBuffers(numBuffers, caps);

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                destroyBuffers();
                // ... then recreate the backbuffers
            }


            if (caps instanceof ExtendedBufferCapabilities) {
                ExtendedBufferCapabilities ebc =
                    (ExtendedBufferCapabilities)caps;
                if (ebc.getVSync() == VSYNC_ON) {
                    // if this buffer strategy is not allowed to be v-synced,
                    // change the caps that we pass to the peer but keep on
                    // trying to create v-synced buffers;
                    // do not throw IAE here in case it is disallowed, see
                    // ExtendedBufferCapabilities for more info
                    if (!VSyncedBSManager.vsyncAllowed(this)) {
                        caps = ebc.derive(VSYNC_DEFAULT);
                    }
                }
            }


            peer.createBuffers(numBuffers, caps);

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sun.java2d.opengl.WGLVolatileSurfaceManager

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