下面列出了java.awt.image.VolatileImage#IMAGE_RESTORED 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private void initBackbuffer() {
createBackbuffer();
int res = bb.validate(getGraphicsConfiguration());
if (res == VolatileImage.IMAGE_INCOMPATIBLE) {
bb = null;
createBackbuffer();
bb.validate(getGraphicsConfiguration());
res = VolatileImage.IMAGE_RESTORED;
}
if (res == VolatileImage.IMAGE_RESTORED) {
Graphics g = bb.getGraphics();
g.setColor(new Color(rnd.nextInt(0x00ffffff)));
g.fillRect(0, 0, bb.getWidth(), bb.getHeight());
volSprite = createVolatileImage(100, 100);
}
volSprite.validate(getGraphicsConfiguration());
}
void initVI() {
int res;
if (vi == null) {
res = VolatileImage.IMAGE_INCOMPATIBLE;
} else {
res = vi.validate(getGraphicsConfiguration());
}
if (res == VolatileImage.IMAGE_INCOMPATIBLE) {
if (vi != null) vi.flush();
vi = createVolatileImage(IMAGE_SIZE, IMAGE_SIZE);
vi.validate(getGraphicsConfiguration());
res = VolatileImage.IMAGE_RESTORED;
}
if (res == VolatileImage.IMAGE_RESTORED) {
Graphics vig = vi.getGraphics();
vig.setColor(Color.red);
vig.fillRect(0, 0, vi.getWidth(), vi.getHeight());
vig.dispose();
}
}
private static void initVI(GraphicsConfiguration gc) {
int res;
if (destVI == null) {
res = VolatileImage.IMAGE_INCOMPATIBLE;
} else {
res = destVI.validate(gc);
}
if (res == VolatileImage.IMAGE_INCOMPATIBLE) {
if (destVI != null) destVI.flush();
destVI = gc.createCompatibleVolatileImage(IMAGE_SIZE, IMAGE_SIZE);
destVI.validate(gc);
res = VolatileImage.IMAGE_RESTORED;
}
if (res == VolatileImage.IMAGE_RESTORED) {
Graphics vig = destVI.getGraphics();
vig.setColor(Color.red);
vig.fillRect(0, 0, destVI.getWidth(), destVI.getHeight());
vig.dispose();
}
}
private static void initVI(GraphicsConfiguration gc) {
int res;
if (destVI == null) {
res = VolatileImage.IMAGE_INCOMPATIBLE;
} else {
res = destVI.validate(gc);
}
if (res == VolatileImage.IMAGE_INCOMPATIBLE) {
if (destVI != null) destVI.flush();
destVI = gc.createCompatibleVolatileImage(IMAGE_SIZE, IMAGE_SIZE);
destVI.validate(gc);
res = VolatileImage.IMAGE_RESTORED;
}
if (res == VolatileImage.IMAGE_RESTORED) {
Graphics vig = destVI.getGraphics();
vig.setColor(Color.red);
vig.fillRect(0, 0, destVI.getWidth(), destVI.getHeight());
vig.dispose();
}
}
private static void initVI(GraphicsConfiguration gc) {
int res;
if (destVI == null) {
res = VolatileImage.IMAGE_INCOMPATIBLE;
} else {
res = destVI.validate(gc);
}
if (res == VolatileImage.IMAGE_INCOMPATIBLE) {
if (destVI != null) destVI.flush();
destVI = gc.createCompatibleVolatileImage(IMAGE_SIZE, IMAGE_SIZE);
destVI.validate(gc);
res = VolatileImage.IMAGE_RESTORED;
}
if (res == VolatileImage.IMAGE_RESTORED) {
Graphics vig = destVI.getGraphics();
vig.setColor(Color.red);
vig.fillRect(0, 0, destVI.getWidth(), destVI.getHeight());
vig.dispose();
}
}
public void render(Graphics g) {
do {
height = getBounds().height;
width = getBounds().width;
if (vimg == null) {
vimg = createVolatileImage(width, height);
renderOffscreen();
}
int returnCode = vimg.validate(getGraphicsConfiguration());
if (returnCode == VolatileImage.IMAGE_RESTORED) {
renderOffscreen();
} else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) {
vimg = getGraphicsConfiguration().
createCompatibleVolatileImage(width, height);
renderOffscreen();
} else if (returnCode == VolatileImage.IMAGE_OK) {
renderOffscreen();
}
g.drawImage(vimg, 0, 0, this);
} while (vimg.contentsLost());
}
public void render(Graphics g) {
do {
height = getBounds().height;
width = getBounds().width;
if (vimg == null) {
vimg = createVolatileImage(width, height);
renderOffscreen();
}
int returnCode = vimg.validate(getGraphicsConfiguration());
if (returnCode == VolatileImage.IMAGE_RESTORED) {
renderOffscreen();
} else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) {
vimg = getGraphicsConfiguration().
createCompatibleVolatileImage(width, height);
renderOffscreen();
} else if (returnCode == VolatileImage.IMAGE_OK) {
renderOffscreen();
}
g.drawImage(vimg, 0, 0, this);
} while (vimg.contentsLost());
}
private void initBackbuffer() {
createBackbuffer();
int res = bb.validate(getGraphicsConfiguration());
if (res == VolatileImage.IMAGE_INCOMPATIBLE) {
bb = null;
createBackbuffer();
bb.validate(getGraphicsConfiguration());
res = VolatileImage.IMAGE_RESTORED;
}
if (res == VolatileImage.IMAGE_RESTORED) {
Graphics g = bb.getGraphics();
g.setColor(new Color(rnd.nextInt(0x00ffffff)));
g.fillRect(0, 0, bb.getWidth(), bb.getHeight());
volSprite = createVolatileImage(100, 100);
}
volSprite.validate(getGraphicsConfiguration());
}
public void render(Graphics g) {
do {
height = getBounds().height;
width = getBounds().width;
if (vimg == null) {
vimg = createVolatileImage(width, height);
renderOffscreen();
}
int returnCode = vimg.validate(getGraphicsConfiguration());
if (returnCode == VolatileImage.IMAGE_RESTORED) {
renderOffscreen();
} else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) {
vimg = getGraphicsConfiguration().
createCompatibleVolatileImage(width, height);
renderOffscreen();
} else if (returnCode == VolatileImage.IMAGE_OK) {
renderOffscreen();
}
g.drawImage(vimg, 0, 0, this);
} while (vimg.contentsLost());
}
private static void initVI(GraphicsConfiguration gc) {
int res;
if (destVI == null) {
res = VolatileImage.IMAGE_INCOMPATIBLE;
} else {
res = destVI.validate(gc);
}
if (res == VolatileImage.IMAGE_INCOMPATIBLE) {
if (destVI != null) destVI.flush();
destVI = gc.createCompatibleVolatileImage(IMAGE_SIZE, IMAGE_SIZE);
destVI.validate(gc);
res = VolatileImage.IMAGE_RESTORED;
}
if (res == VolatileImage.IMAGE_RESTORED) {
Graphics vig = destVI.getGraphics();
vig.setColor(Color.red);
vig.fillRect(0, 0, destVI.getWidth(), destVI.getHeight());
vig.dispose();
}
}
void initVI() {
int res;
if (vi == null) {
res = VolatileImage.IMAGE_INCOMPATIBLE;
} else {
res = vi.validate(getGraphicsConfiguration());
}
if (res == VolatileImage.IMAGE_INCOMPATIBLE) {
if (vi != null) vi.flush();
vi = createVolatileImage(IMAGE_SIZE, IMAGE_SIZE);
vi.validate(getGraphicsConfiguration());
res = VolatileImage.IMAGE_RESTORED;
}
if (res == VolatileImage.IMAGE_RESTORED) {
Graphics vig = vi.getGraphics();
vig.setColor(Color.red);
vig.fillRect(0, 0, vi.getWidth(), vi.getHeight());
vig.dispose();
}
}
public void validateSprite() {
int result =
((VolatileImage)image).validate(getGraphicsConfiguration());
if (result == VolatileImage.IMAGE_INCOMPATIBLE) {
image = createSprite();
result = VolatileImage.IMAGE_RESTORED;
}
if (result == VolatileImage.IMAGE_RESTORED) {
Graphics g = image.getGraphics();
g.setColor(color);
g.fillRect(0, 0, image.getWidth(null), image.getHeight(null));
}
}
public void validateSprite() {
int result =
((VolatileImage)image).validate(getGraphicsConfiguration());
if (result == VolatileImage.IMAGE_INCOMPATIBLE) {
image = createSprite();
result = VolatileImage.IMAGE_RESTORED;
}
if (result == VolatileImage.IMAGE_RESTORED) {
Graphics g = image.getGraphics();
g.setColor(color);
g.fillRect(0, 0, image.getWidth(null), image.getHeight(null));
}
}
public void validateSprite() {
int result =
((VolatileImage)image).validate(getGraphicsConfiguration());
if (result == VolatileImage.IMAGE_INCOMPATIBLE) {
image = createSprite();
result = VolatileImage.IMAGE_RESTORED;
}
if (result == VolatileImage.IMAGE_RESTORED) {
Graphics g = image.getGraphics();
g.setColor(color);
g.fillRect(0, 0, image.getWidth(null), image.getHeight(null));
}
}
private static void testScale(double scaleX, double scaleY,
GraphicsConfiguration gc) throws Exception
{
BufferedImage buffImage = new BufferedImage(IMAGE_WIDTH, IMAGE_HEIGHT,
BufferedImage.TYPE_INT_RGB);
Graphics g = buffImage.createGraphics();
VolatileImage vImg = createVolatileImage(gc);
int attempts = 0;
do {
if (attempts > 10) {
throw new RuntimeException("Too many attempts!");
}
int returnCode = vImg.validate(gc);
if (returnCode == VolatileImage.IMAGE_RESTORED) {
// Contents need to be restored
renderOffscreen(vImg, gc, scaleX, scaleY); // restore contents
} else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) {
// old vImg doesn't work with new GraphicsConfig; re-create it
vImg = createVolatileImage(gc);
renderOffscreen(vImg, gc, scaleX, scaleY);
}
g.drawImage(vImg, 0, 0, null);
attempts++;
} while (vImg.contentsLost());
g.dispose();
int x = scale(X + N * DX, scaleX) + 1;
int y = scale(Y + N * DY, scaleY) + 1;
int w = scale(W, scaleX) - 2;
int h = scale(H, scaleY) - 2;
for (int i = x; i < x + w; i++) {
for (int j = y; j < y + h; j++) {
if (buffImage.getRGB(i, j) != FILL_COLOR.getRGB()) {
throw new RuntimeException("Wrong rectangle color!");
}
}
}
}
/**
* Get the image ready for rendering. This method is called to make
* sure that the accelerated SurfaceData exists and is
* ready to be used. Users call this method prior to any set of
* rendering to or from the image, to make sure the image is ready
* and compatible with the given GraphicsConfiguration.
*
* The image may not be "ready" if either we had problems creating
* it in the first place (e.g., there was no space in vram) or if
* the surface became lost (e.g., some other app or the OS caused
* vram surfaces to be removed).
*
* Note that we want to return RESTORED in any situation where the
* SurfaceData is different than it was last time. So whether it's
* software or hardware, if we have a different SurfaceData object,
* then the contents have been altered and we must reflect that
* change to the user.
*/
public int validate(GraphicsConfiguration gc) {
int returnCode = VolatileImage.IMAGE_OK;
boolean lostSurfaceTmp = lostSurface;
lostSurface = false;
if (isAccelerationEnabled()) {
if (!isConfigValid(gc)) {
// If we're asked to render to a different device than the
// one we were created under, return INCOMPATIBLE error code.
// Note that a null gc simply ignores the incompatibility
// issue
returnCode = VolatileImage.IMAGE_INCOMPATIBLE;
} else if (sdAccel == null) {
// We either had problems creating the surface or the display
// mode changed and we nullified the old one. Try it again.
sdAccel = initAcceleratedSurface();
if (sdAccel != null) {
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} else {
sdCurrent = getBackupSurface();
}
} else if (sdAccel.isSurfaceLost()) {
try {
restoreAcceleratedSurface();
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// restoration successful: accel surface no longer lost
sdAccel.setSurfaceLost(false);
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} catch (sun.java2d.InvalidPipeException e) {
// Set the current SurfaceData to software version so that
// drawing can continue. Note that we still have
// the lostAccelSurface flag set so that we will continue
// to attempt to restore the accelerated surface.
sdCurrent = getBackupSurface();
}
} else if (lostSurfaceTmp) {
// Something else triggered this loss/restoration. Could
// be a palette change that didn't require a SurfaceData
// recreation but merely a re-rendering of the pixels.
returnCode = VolatileImage.IMAGE_RESTORED;
}
} else if (sdAccel != null) {
// if the "acceleration enabled" state changed to disabled,
// switch to software surface
sdCurrent = getBackupSurface();
sdAccel = null;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if ((returnCode != VolatileImage.IMAGE_INCOMPATIBLE) &&
(sdCurrent != sdPrevious))
{
// contents have changed - return RESTORED to user
sdPrevious = sdCurrent;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if (returnCode == VolatileImage.IMAGE_RESTORED) {
// clear the current surface with the background color,
// only if the surface has been restored
initContents();
}
return returnCode;
}
/**
* Get the image ready for rendering. This method is called to make
* sure that the accelerated SurfaceData exists and is
* ready to be used. Users call this method prior to any set of
* rendering to or from the image, to make sure the image is ready
* and compatible with the given GraphicsConfiguration.
*
* The image may not be "ready" if either we had problems creating
* it in the first place (e.g., there was no space in vram) or if
* the surface became lost (e.g., some other app or the OS caused
* vram surfaces to be removed).
*
* Note that we want to return RESTORED in any situation where the
* SurfaceData is different than it was last time. So whether it's
* software or hardware, if we have a different SurfaceData object,
* then the contents have been altered and we must reflect that
* change to the user.
*/
public int validate(GraphicsConfiguration gc) {
int returnCode = VolatileImage.IMAGE_OK;
boolean lostSurfaceTmp = lostSurface;
lostSurface = false;
if (isAccelerationEnabled()) {
if (!isConfigValid(gc)) {
// If we're asked to render to a different device than the
// one we were created under, return INCOMPATIBLE error code.
// Note that a null gc simply ignores the incompatibility
// issue
returnCode = VolatileImage.IMAGE_INCOMPATIBLE;
} else if (sdAccel == null) {
// We either had problems creating the surface or the display
// mode changed and we nullified the old one. Try it again.
sdAccel = initAcceleratedSurface();
if (sdAccel != null) {
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} else {
sdCurrent = getBackupSurface();
}
} else if (sdAccel.isSurfaceLost()) {
try {
restoreAcceleratedSurface();
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// restoration successful: accel surface no longer lost
sdAccel.setSurfaceLost(false);
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} catch (sun.java2d.InvalidPipeException e) {
// Set the current SurfaceData to software version so that
// drawing can continue. Note that we still have
// the lostAccelSurface flag set so that we will continue
// to attempt to restore the accelerated surface.
sdCurrent = getBackupSurface();
}
} else if (lostSurfaceTmp) {
// Something else triggered this loss/restoration. Could
// be a palette change that didn't require a SurfaceData
// recreation but merely a re-rendering of the pixels.
returnCode = VolatileImage.IMAGE_RESTORED;
}
} else if (sdAccel != null) {
// if the "acceleration enabled" state changed to disabled,
// switch to software surface
sdCurrent = getBackupSurface();
sdAccel = null;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if ((returnCode != VolatileImage.IMAGE_INCOMPATIBLE) &&
(sdCurrent != sdPrevious))
{
// contents have changed - return RESTORED to user
sdPrevious = sdCurrent;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if (returnCode == VolatileImage.IMAGE_RESTORED) {
// clear the current surface with the background color,
// only if the surface has been restored
initContents();
}
return returnCode;
}
/**
* Get the image ready for rendering. This method is called to make
* sure that the accelerated SurfaceData exists and is
* ready to be used. Users call this method prior to any set of
* rendering to or from the image, to make sure the image is ready
* and compatible with the given GraphicsConfiguration.
*
* The image may not be "ready" if either we had problems creating
* it in the first place (e.g., there was no space in vram) or if
* the surface became lost (e.g., some other app or the OS caused
* vram surfaces to be removed).
*
* Note that we want to return RESTORED in any situation where the
* SurfaceData is different than it was last time. So whether it's
* software or hardware, if we have a different SurfaceData object,
* then the contents have been altered and we must reflect that
* change to the user.
*/
public int validate(GraphicsConfiguration gc) {
int returnCode = VolatileImage.IMAGE_OK;
boolean lostSurfaceTmp = lostSurface;
lostSurface = false;
if (isAccelerationEnabled()) {
if (!isConfigValid(gc)) {
// If we're asked to render to a different device than the
// one we were created under, return INCOMPATIBLE error code.
// Note that a null gc simply ignores the incompatibility
// issue
returnCode = VolatileImage.IMAGE_INCOMPATIBLE;
} else if (sdAccel == null) {
// We either had problems creating the surface or the display
// mode changed and we nullified the old one. Try it again.
sdAccel = initAcceleratedSurface();
if (sdAccel != null) {
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} else {
sdCurrent = getBackupSurface();
}
} else if (sdAccel.isSurfaceLost()) {
try {
restoreAcceleratedSurface();
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// restoration successful: accel surface no longer lost
sdAccel.setSurfaceLost(false);
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} catch (sun.java2d.InvalidPipeException e) {
// Set the current SurfaceData to software version so that
// drawing can continue. Note that we still have
// the lostAccelSurface flag set so that we will continue
// to attempt to restore the accelerated surface.
sdCurrent = getBackupSurface();
}
} else if (lostSurfaceTmp) {
// Something else triggered this loss/restoration. Could
// be a palette change that didn't require a SurfaceData
// recreation but merely a re-rendering of the pixels.
returnCode = VolatileImage.IMAGE_RESTORED;
}
} else if (sdAccel != null) {
// if the "acceleration enabled" state changed to disabled,
// switch to software surface
sdCurrent = getBackupSurface();
sdAccel = null;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if ((returnCode != VolatileImage.IMAGE_INCOMPATIBLE) &&
(sdCurrent != sdPrevious))
{
// contents have changed - return RESTORED to user
sdPrevious = sdCurrent;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if (returnCode == VolatileImage.IMAGE_RESTORED) {
// clear the current surface with the background color,
// only if the surface has been restored
initContents();
}
return returnCode;
}
/**
* Get the image ready for rendering. This method is called to make
* sure that the accelerated SurfaceData exists and is
* ready to be used. Users call this method prior to any set of
* rendering to or from the image, to make sure the image is ready
* and compatible with the given GraphicsConfiguration.
*
* The image may not be "ready" if either we had problems creating
* it in the first place (e.g., there was no space in vram) or if
* the surface became lost (e.g., some other app or the OS caused
* vram surfaces to be removed).
*
* Note that we want to return RESTORED in any situation where the
* SurfaceData is different than it was last time. So whether it's
* software or hardware, if we have a different SurfaceData object,
* then the contents have been altered and we must reflect that
* change to the user.
*/
public int validate(GraphicsConfiguration gc) {
int returnCode = VolatileImage.IMAGE_OK;
boolean lostSurfaceTmp = lostSurface;
lostSurface = false;
if (isAccelerationEnabled()) {
if (!isConfigValid(gc)) {
// If we're asked to render to a different device than the
// one we were created under, return INCOMPATIBLE error code.
// Note that a null gc simply ignores the incompatibility
// issue
returnCode = VolatileImage.IMAGE_INCOMPATIBLE;
} else if (sdAccel == null) {
// We either had problems creating the surface or the display
// mode changed and we nullified the old one. Try it again.
sdAccel = initAcceleratedSurface();
if (sdAccel != null) {
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} else {
sdCurrent = getBackupSurface();
}
} else if (sdAccel.isSurfaceLost()) {
try {
restoreAcceleratedSurface();
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// restoration successful: accel surface no longer lost
sdAccel.setSurfaceLost(false);
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} catch (sun.java2d.InvalidPipeException e) {
// Set the current SurfaceData to software version so that
// drawing can continue. Note that we still have
// the lostAccelSurface flag set so that we will continue
// to attempt to restore the accelerated surface.
sdCurrent = getBackupSurface();
}
} else if (lostSurfaceTmp) {
// Something else triggered this loss/restoration. Could
// be a palette change that didn't require a SurfaceData
// recreation but merely a re-rendering of the pixels.
returnCode = VolatileImage.IMAGE_RESTORED;
}
} else if (sdAccel != null) {
// if the "acceleration enabled" state changed to disabled,
// switch to software surface
sdCurrent = getBackupSurface();
sdAccel = null;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if ((returnCode != VolatileImage.IMAGE_INCOMPATIBLE) &&
(sdCurrent != sdPrevious))
{
// contents have changed - return RESTORED to user
sdPrevious = sdCurrent;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if (returnCode == VolatileImage.IMAGE_RESTORED) {
// clear the current surface with the background color,
// only if the surface has been restored
initContents();
}
return returnCode;
}
/**
* Get the image ready for rendering. This method is called to make
* sure that the accelerated SurfaceData exists and is
* ready to be used. Users call this method prior to any set of
* rendering to or from the image, to make sure the image is ready
* and compatible with the given GraphicsConfiguration.
*
* The image may not be "ready" if either we had problems creating
* it in the first place (e.g., there was no space in vram) or if
* the surface became lost (e.g., some other app or the OS caused
* vram surfaces to be removed).
*
* Note that we want to return RESTORED in any situation where the
* SurfaceData is different than it was last time. So whether it's
* software or hardware, if we have a different SurfaceData object,
* then the contents have been altered and we must reflect that
* change to the user.
*/
public int validate(GraphicsConfiguration gc) {
int returnCode = VolatileImage.IMAGE_OK;
boolean lostSurfaceTmp = lostSurface;
lostSurface = false;
if (isAccelerationEnabled()) {
if (!isConfigValid(gc)) {
// If we're asked to render to a different device than the
// one we were created under, return INCOMPATIBLE error code.
// Note that a null gc simply ignores the incompatibility
// issue
returnCode = VolatileImage.IMAGE_INCOMPATIBLE;
} else if (sdAccel == null) {
// We either had problems creating the surface or the display
// mode changed and we nullified the old one. Try it again.
sdAccel = initAcceleratedSurface();
if (sdAccel != null) {
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} else {
sdCurrent = getBackupSurface();
}
} else if (sdAccel.isSurfaceLost()) {
try {
restoreAcceleratedSurface();
// set the current SurfaceData to accelerated version
sdCurrent = sdAccel;
// restoration successful: accel surface no longer lost
sdAccel.setSurfaceLost(false);
// we don't need the system memory surface anymore, so
// let's release it now (it can always be restored later)
sdBackup = null;
returnCode = VolatileImage.IMAGE_RESTORED;
} catch (sun.java2d.InvalidPipeException e) {
// Set the current SurfaceData to software version so that
// drawing can continue. Note that we still have
// the lostAccelSurface flag set so that we will continue
// to attempt to restore the accelerated surface.
sdCurrent = getBackupSurface();
}
} else if (lostSurfaceTmp) {
// Something else triggered this loss/restoration. Could
// be a palette change that didn't require a SurfaceData
// recreation but merely a re-rendering of the pixels.
returnCode = VolatileImage.IMAGE_RESTORED;
}
} else if (sdAccel != null) {
// if the "acceleration enabled" state changed to disabled,
// switch to software surface
sdCurrent = getBackupSurface();
sdAccel = null;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if ((returnCode != VolatileImage.IMAGE_INCOMPATIBLE) &&
(sdCurrent != sdPrevious))
{
// contents have changed - return RESTORED to user
sdPrevious = sdCurrent;
returnCode = VolatileImage.IMAGE_RESTORED;
}
if (returnCode == VolatileImage.IMAGE_RESTORED) {
// clear the current surface with the background color,
// only if the surface has been restored
initContents();
}
return returnCode;
}