I have an application hosting the webbrowser control which clears the cache (regularly) using the code example provided my microsoft:
http://support.microsoft.com/kb/262110
I am noticing however that after sometime the cache get corrupted or not working properly (requests that should be out of cache - are called over and over again.
When I run the following command, the application starts running normally.
system('RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 8')
Are the two the same, or is the code lacking something?
In IE9 I ran InetCpl.cpl,ClearMyTracksByProcess 8 and it did not remove a thing so looks like MS has moved the goal posts again.
Shown below is some very nice code I picked up that should work in IE7 but if you want code that does the trick on win7 and IE8/9 then click my name
public static class ClearMyTracks {
/*
* To clear IE temporary Internet files – ClearMyTracksByProcess 8
* To clear IE browsing cookies – ClearMyTracksByProcess 2
* To clear IE browsing history – ClearMyTracksByProcess 193 (ALSO deletes add on history)
* To clear IE form data- ClearMyTracksByProcess 16
* To clear IE remembered passwords for filling web login forms-ClearMyTracksByProcess 32
* To clear or delete all IE browsing history – all of above!- ClearMyTracksByProcess 255
* To clear IE Tracking- ClearMyTracksByProcess 2048
* Preserve Favourites use 8192
* To clear IE Downloaded Files- ClearMyTracksByProcess 16384
* http://www.howtogeek.com/howto/windows/clear-ie7-browsing-history-from-the-command-line/
*/
public enum ClearFlags {
DeleteCookies = 2,
DeleteHistoryFiles = 8,
DeleteFormData = 16,
DeletePasswords = 32,
DeleteHistory = 193,
DeleteALLHistory = 255,
DeleteTrackingInfo = 2048,
PreserveFavourites = 8192,
DeleteDownloadHistory = 16384,
DeleteEverything = 22783
};
public static void IEClearHistory(bool PreserveFavs, bool TempFiles, bool Cookies, bool History, bool form, bool passwords, bool downloads) {
uint mask = 0;
if (PreserveFavs)
mask |= (uint)ClearFlags.PreserveFavourites;
if (TempFiles)
mask |= (uint)ClearFlags.DeleteHistoryFiles;
if (Cookies)
mask |= (uint)ClearFlags.DeleteCookies;
if (History)
mask |= (uint)ClearFlags.DeleteHistory;
if (form)
mask |= (uint)ClearFlags.DeleteFormData;
if (passwords)
mask |= (uint)ClearFlags.DeletePasswords;
if (downloads)
mask |= (uint)ClearFlags.DeleteDownloadHistory;
if (mask != 0)
System.Diagnostics.Process.Start("rundll32.exe", "InetCpl.cpl,ClearMyTracksByProcess " + mask.ToString());
}
Related
I'm trying to copy the NV12 NVDEC decoded buffer directly into an NV12 d3d11 texture. No luck so far. What I've managed to do is a double shot copy using 2 d3d11 textures (luma + chroma), 2 cuGraphicsMapResources, 2 cuGraphicsSubResourceGetMappedArray, 2 CUDA_MEMCPY2D and a pixel shader to merge all....no way to perform a single shot copy, and no response from NVidia forum so far.
I've found this old question facing a very similar problem, no solution there either.
Perhaps you need something like this. This code snipped taken from FFmpeg Project (opensource), libavutil/hwcontext_cude.c file:
for (i = 0; i < FF_ARRAY_ELEMS(src->data) && src->data[i]; i++) {
CUDA_MEMCPY2D cpy = {
.srcMemoryType = CU_MEMORYTYPE_HOST,
.dstMemoryType = CU_MEMORYTYPE_DEVICE,
.srcHost = src->data[i],
.dstDevice = (CUdeviceptr)dst->data[i],
.srcPitch = src->linesize[i],
.dstPitch = dst->linesize[i],
.WidthInBytes = FFMIN(src->linesize[i], dst->linesize[i]),
.Height = src->height >> (i ? priv->shift_height : 0),
};
ret = CHECK_CU(cu->cuMemcpy2DAsync(&cpy, hwctx->stream));
if (ret < 0)
goto exit;
}
Not sure how this can be done with NVidia/Cuda as I'm not familiar with. But this is how I managed to do it with Direct3D (D3D11va) that might help you to translate it to your situation:-
(NV12 NDEC Device).CopySubresourceRegion(src NV12 NVDEC texture, srcSubresourceArrayIndex, dst NV12 shared texture)
(Get Shared Handle for the newly created NV12 shared texture)
(Your Device).OpenSharedResource(NV12 shared handle)
(Prepare VideoProcessorInputView, VideoProcessorOutputView and Streams)
(Your Device).VideoProcessorBlt(src NV12 shared handle, dst Your RGBA/BGRA Render Texture)
This process is Video Acceleration and it happens only in your GPU (no CPU/RAM involved). You should also ensure that the GPU adapter supports that.
I can only find methods to create Button:s from disk-based image files.
How would I set/change a button's normal/highlighted states from in-memory data like Texture2D, Image etc?
Cocos2D-x v3.5
Update 20160408:
I Googled this again, and Google suggested this page... and I have to thank my past self :-)
This time I wrote a handy tool function:
void Mjcocoshelper::rendernodetospriteframecache(Node* node, std::string nameincache) {
const Size SIZE = node->getBoundingBox().size;
auto render = RenderTexture::create(SIZE.width, SIZE.height);
render->begin();
const Vec2 POS_BEFORE = node->getPosition();
const bool IGNORE_BEFORE = node->isIgnoreAnchorPointForPosition();
const float SCALEY_BEFORE = node->getScaleY();
node->ignoreAnchorPointForPosition(false);
node->setPosition(SIZE.width * 0.5f, SIZE.height * 0.5f);
node->setScaleY(-1.0f); // Or it gets upside down?
node->visit();
node->ignoreAnchorPointForPosition(IGNORE_BEFORE);
node->setPosition(POS_BEFORE);
node->setScaleY(SCALEY_BEFORE);
render->end();
auto spriteNew = render->getSprite();
Texture2D* texture2d = spriteNew->getTexture();
SpriteFrame* spriteframeOff = SpriteFrame::createWithTexture(texture2d, Rect(0, 0, texture2d->getContentSize().width, texture2d->getContentSize().height));
SpriteFrameCache::getInstance()->addSpriteFrame(spriteframeOff, nameincache);
}
Old:
I figured out this kinda neat workaround:
std::string framenameOff;
{
Texture2D* texture2d = mjpromobuttonx.textureOff();
SpriteFrame* spriteframeOff = SpriteFrame::createWithTexture(texture2d, Rect(0, 0, texture2d->getContentSize().width, texture2d->getContentSize().height));
framenameOff = "autobutton_off_" + std::to_string(++buttonsaddedtocacheoff);
SpriteFrameCache::getInstance()->addSpriteFrame(spriteframeOff, framenameOff);
}
std::string framenameOn;
{
Texture2D* texture2d = mjpromobuttonx.textureOff();
SpriteFrame* spriteframeOn = SpriteFrame::createWithTexture(texture2d, Rect(0, 0, texture2d->getContentSize().width, texture2d->getContentSize().height));
framenameOn = "autobutton_on_" + std::to_string(++buttonsaddedtocacheon);
SpriteFrameCache::getInstance()->addSpriteFrame(spriteframeOn, framenameOn);
}
Button* item = Button::create(framenameOff, framenameOn, framenameOff, TextureResType::PLIST);
So what it does, it adds spriteframes on the fly to the sprite frame cache. We have to make sure that the names we store them with don't overwrite anything else, and we also have to keep creating new names for each image we add to the cache. On some extreme sad occasion maybe this would overwrite some existing image, so I'll give this some more thouhght... maybe... sometime...
Bonus:
I did have a ObjC framework I created earlier that fetches images from a remote server... um for now I reused it, and also needed to convert the UIImage:s the framework ended up with to something I could pass to C++ and then Cocos2D-x... so I used this, it works pretty well:
Texture2D* getTexture2DFromUIImage(UIImage *photo) {
#warning TODO: Make use of this baby later? Does it work? Do we need to free after malloc?
// https://stackoverflow.com/a/15134000/129202
Image *imf = new Image();
NSData *imgData = UIImagePNGRepresentation(photo);
NSUInteger len = [imgData length];
Byte *byteData = (Byte*)malloc(len);
memcpy(byteData, [imgData bytes], len);
imf->initWithImageData(byteData,imgData.length);
imf->autorelease();
Texture2D* pTexture = new Texture2D();
pTexture->initWithImage(imf);
pTexture->autorelease();
return pTexture;
}
Now I'm just guessing that the malloc in that function should really have a free somewhere after it... but that's another issue.
I try to record PCM sound from flash (using Microphone class). I use org.bytearray.micrecorder.MicRecorder helper class.
In Microphone class I cannot find property like bitDepth or bitsPerSample.
I always get 32 bits.
Is it possible to do?
UPDATE: The asker John812 was able to solve this by using..
bit16_bytes.writeShort( data.readFloat() * 32767 ); see comments below for context
METHOD #2: Based on my experience with using the LoadPCMfromByteArray method
I have something you could try but I've only used it with an actual 32bit WAVE file and played via the LoadPCMFromByteArray command.
The AS3 Microphone Class records 32 bits. You have to write the conversion of samples to a different bit-depth by yourself. I have no idea how many samples you are processing but the general code below shows you how to convert. Note: * 512 means use your actual samples amount (example: * 4096? or * 8192?) If you get the numbers wrong there'll be hiss/distortion so either experiment from small or provide the full details in your question for a more helpful edit/answer.
CONVERT: Assuming your recorded byteArray is called data
public var bit16_bytes : ByteArray; //will hold the 16bit version
public function convert_to16Bit () : void
{
bit16_bytes = new ByteArray(); data.position = 0;
while (bit16_bytes.position < data.length - 4)
//if you get noise/distortion try either: 256, 512, 1024, 2048, 4096 or 8192
{ bit16_bytes.writeShort( data.readInt() * 512 ); } //multiply by samples amount
data = new ByteArray(); //recycle for re-use
bit16_bytes.position = 0; //reset or else E-O-File error
bit16_bytes.readBytes( data ); //copy 16bit back into Data byte-array
}
To run the above function whenever you're ready just add the line convert_to16Bit(); inside whatever function deals with your "recording complete" situation.
I store audio recorded from the microphone in a bytearray and send it via the AS3Websocket library (https://github.com/Worlize/AS3WebSocket) to a server:
private function processMicInput(event:SampleDataEvent):void {
if (isRecording) {
while (event.data.bytesAvailable) {
recordingBuffer.writeShort(event.data.readFloat()*0x7fff);
}
websocket.sendBytes(recordingBuffer);
recordingBuffer.clear();
}
}
However, I want the data to be little-endian. It doesn't seem to matter whether I set the recordingBuffer bytearray to little-endian or big-endian, it always gets sent as big-endian.
Internally, it seems that the AS3Websocket library uses a socket that is set to big-endian. Is this the problem?
If so, how can I work around this?
Interesting. In the library under sendBytes you can see that the data gets copied to two buffers on its way out. I'm not sure it's safe to modify what's happening in the library. You could change the order of the bytes as you write them into recordingBuffer:
while (event.data.bytesAvailable) {
var val:int = event.data.readFloat()*0x7fff;
recordingBuffer.writeShort( ((val >> 8) & 0xff) | ((val & 0xff) << 8));
}
If you need to flip whole 32-bit words, you'll have to get fancier. LMK if this is the case.
Good luck!
I have a JSlider with 65536 different values. It works great for coarse adjustments and for very fine adjustments (+/-1 using up/down arrow) but is very poor in the middle.
Is there anything out there that would be better? I can vaguely imagine taking 2 sliders one for coarse + fine adjustments, but can't really figure out how to get them to work together.
What about using a JSpinner instead of a JSlider? With a SpinnerNumberModel, you can set the step size and even change the step size dynamically.
If you're OK with having multiple controls, you could even have two spinners, one for setting your values and another for setting the step size that is used by the first spinner.
For an example of this, I took the SliderDemo code from the Swing slider tutorial and modified it instead to use two JSpinners instead of a single JSlider. Here's the most interesting part of the code that I changed:
//Create the slider^H^H^H^H^H^H spinners.
// JSlider framesPerSecond = new JSlider(JSlider.HORIZONTAL,
// FPS_MIN, FPS_MAX, FPS_INIT);
final int initStep = 1;
final SpinnerNumberModel animationModel = new SpinnerNumberModel(FPS_INIT,
FPS_MIN,
FPS_MAX,
initStep);
final SpinnerNumberModel stepSizeModel = new SpinnerNumberModel(initStep,
1,
10,
1);
final JSpinner framesSpinner = new JSpinner(animationModel);
framesSpinner.addChangeListener(this);
final JSpinner stepSpinner = new JSpinner(stepSizeModel);
stepSpinner.addChangeListener(new ChangeListener()
{
public void stateChanged(ChangeEvent arg0)
{
animationModel.setStepSize(stepSizeModel.getNumber());
}
});
I also had to make a bunch of less interesting changes, such as creating a label for the step size spinner, adding the new label and new spinner to the container, and changing the stateChanged() method on this to cast the source of the event to a JSpinner instead of casting it to a JSlider.
You could, of course, elaborate on this further, such as increasing the step size for the step size spinner (for example, so that you can change the step size from 1 to 101 in a single click). You could also use a different control instead of a JSpinner to set the step size, such as a combo box.
Finally, to make this all really easy to use, you would likely want to hook up some keystroke accelerators (possibly through a menu?) so that you could change the step size without actually moving the mouse or the keyboard focus from one spinner to another.
Edit: Given that you have to use a JSlider no matter what, are you aware that you can use PgUp/PgDn to move up and down by 1/10th of the total range?
If you want to change that 1/10th amount (such as making it dynamic), then you'll need to override the the method BasicSliderUI.scrollByBlock().
Here's an example where I just overrode the UI class of a JSlider to step by 1/4th of the range, instead of 1/10th:
//Create the slider.
JSlider framesPerSecond = new JSlider(JSlider.HORIZONTAL,
FPS_MIN, FPS_MAX, FPS_INIT);
framesPerSecond.setUI(new javax.swing.plaf.metal.MetalSliderUI() {
private static final int SLIDER_FRACTION = 4;
/**
* This code is cut, paste, and modified from
* {#link javax.swing.plaf.basic.BasicSliderUI#scrollByBlock(int).
* I should be ashamed of cutting and pasting, but whoever hardcoded the magic
* number "10" in the original code should be more ashamed than me. ;-)
*
* #param direction
* either +1 or -1
*/
#Override
public void scrollByBlock(final int direction) {
synchronized(slider) {
int oldValue = slider.getValue();
int blockIncrement = (slider.getMaximum() - slider.getMinimum()) / SLIDER_FRACTION;
if (blockIncrement <= 0 && slider.getMaximum() > slider.getMinimum()) {
blockIncrement = 1;
}
int delta = blockIncrement * ((direction > 0) ? POSITIVE_SCROLL : NEGATIVE_SCROLL);
slider.setValue(oldValue + delta);
}
}
});
From here, it wouldn't be too hard to replace that constant SLIDER_FRACTION with a variable that was set by another slider or by a spinner, would it?