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Home » U++ Library support » Draw, Display, Images, Bitmaps, Icons » [SOLVED] accessing pixels in JPEG created from memory buffer

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Re: accessing pixels in JPEG created from memory buffer [message #21426 is a reply to message #21423]

Tue, 19 May 2009 18:33

mrjt is currently offline

mrjt
Messages: 705
Registered: March 2007
Location: London

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luzr wrote on Tue, 19 May 2009 15:13

mrjt wrote on Tue, 19 May 2009 04:25

Make sure you add the package plugin/jpg to your project
[code]// Load raw image into memory
FileIn fin(IMAGE_FILE_PATH);
if (!fin.IsOpen())
{ Exclamation("Unable to open file"); return; }
String raw = fin.Get((dword)fin.GetSize());

// Convert String to uncompressed Image
Image img = StreamRaster::LoadStringAny(raw);
// If you know the image format you could also use:
// Image img = JPGRaster().LoadString(raw);

Or just:

Image img = StreamRaster::LoadFileAny(IMAGE_FILE_PATH);

Mirek

He already had the raw JPG in memory from an incoming MPEG stream. The first bit is merely illustative.

Incidentally, the first time I attempted to compile this the various image plugins were lised in TheIDE (SVN version compile two days ago), but weren't actually included in the build process. I had to add them to the project to compile it (which is what I would expect, but having them visible is misleading).

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[Message index]

		[SOLVED] accessing pixels in JPEG created from memory buffer By: qwerty on Mon, 18 May 2009 23:41
		Re: accessing pixels in JPEG created from memory buffer By: koldo on Tue, 19 May 2009 09:00
		Re: accessing pixels in JPEG created from memory buffer By: qwerty on Tue, 19 May 2009 10:02
		Re: accessing pixels in JPEG created from memory buffer By: mrjt on Tue, 19 May 2009 10:25
		Re: accessing pixels in JPEG created from memory buffer By: qwerty on Tue, 19 May 2009 10:58
		Re: accessing pixels in JPEG created from memory buffer By: koldo on Tue, 19 May 2009 14:00
		accessing pixels in JPEG created from memory buffer By: qwerty on Tue, 19 May 2009 14:40
		Re: accessing pixels in JPEG created from memory buffer By: mirek on Tue, 19 May 2009 16:13
		Re: accessing pixels in JPEG created from memory buffer By: mrjt on Tue, 19 May 2009 18:33
		Re: [SOLVED] accessing pixels in JPEG created from memory buffer By: koldo on Tue, 19 May 2009 21:34

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