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quantuz
Sweden
55 Posts |
 Posted - Nov 13 2012 : 16:56:50
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Hi!
The conversion between ie8p and ie16g dont seems to work.
The result as an all black image.
the source image is a .bmp palette image
iEBitmapPtr_ = new TIEBitmap();
aviIEIO_->AttachedIEBitmap = iEBitmapPtr_;
aviIEIO_->LoadFromFile(fileName); // iEBitmapPtr_ is here ie8p
iEBitmapPtr_->PixelFormat = ie16g;
// now iEBitmapPtr_ is here ie16g but all black
Running BCB XE2 and IE 4.1.0
Best Regards,
//Christer |
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fab
1310 Posts |
Posted - Nov 14 2012 : 12:31:43
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Hi,
I tried this with the latest version. It seems to work.
Anyway please could you send a sample 8 bit image? |
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quantuz
Sweden
55 Posts |
Posted - Nov 14 2012 : 15:55:25
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Hi Fabrizio,
Tanks fo the help, here is the bitmap..
Here is the complete code sequence
iEBitmapPtr_ = new TIEBitmap();
iEBitmapPtr_->BitAlignment=256;
iEBitmapPtr_->MemoryAllocator = iemaVCL;
aviIEIO_->NativePixelFormat = true;
aviIEIO_->AttachedIEBitmap = iEBitmapPtr_;
iEBitmapPtr_->BitAlignment=256;
aviIEIO_->LoadFromFile(2star.bmp);
iEBitmapPtr_->BitAlignment=256;
iEBitmapPtr_->PixelFormat = ie16g;
Gegards,
//Christer
65.44 KB |
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fab
1310 Posts |
Posted - Nov 14 2012 : 23:19:52
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Please let me know you display the image (how display iEBitmapPtr_). This works:
ImageEnView1->LegacyBitmap = false;
ImageEnView1->IO->NativePixelFormat = true;
ImageEnView1->IEBitmap->BitAlignment = 256;
ImageEnView1->IO->LoadFromFile("20121114154624_2stars.bmp");
ImageEnView1->IEBitmap->BitAlignment = 256;
ImageEnView1->IEBitmap->PixelFormat = ie16g;
ImageEnView1->Update();
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quantuz
Sweden
55 Posts |
Posted - Nov 16 2012 : 02:46:15
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Hi Fabrizio,
I display the image in a ImageEnVect with the code below
ImageEnView1->SetExternalBitmap(iEBitmapPtr_)
Best Regards,
//Christer |
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fab
1310 Posts |
Posted - Nov 22 2012 : 00:49:27
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Hi Christer,
this is a bug of ImageEn, when setting BitAlignment (<>32) with color-mapped images. This bug will big fixed in next minor release.
A workaround is to convert the image to ie8g before last BitAlignment = 256:
ImageEnView1->IO->LoadFromFile("20121114154624_2stars.bmp");
ImageEnView1->IEBitmap->PixelFormat = ie8g;
ImageEnView1->IEBitmap->BitAlignment = 256;
ImageEnView1->IEBitmap->PixelFormat = ie16g;
It doesn't cause loss of information, because ie8g and ie8p are both 8 bit. |
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PixelFormat convert
