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DarkBASIC Professional Discussion / loading .gif in dbpro?

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Prince of Creation
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Posted: 21st Jun 2005 15:20
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I know DBpro doesn't load .gif, but could the expansion do this????
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OSX Using Happy Dude
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Posted: 21st Jun 2005 17:26
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Dont think so.


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Sergey K
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Posted: 21st Jun 2005 19:38 Edited at: 21st Jun 2005 19:39
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i dont know why u think dbpro not loading gifs, but he do loading them

use load animation command to load gif

does 1 + 1 is 11?!
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qwe
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Posted: 22nd Jun 2005 08:43 Edited at: 22nd Jun 2005 08:44
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^in the help files it says "The animation file must be of the MPEG, AVI, Quicktime, WAV, AIFF, AU or SND format"

however... i successfuly loaded a gif with this code



i'm using 5.8 btw, no expansion

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Prince of Creation
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Posted: 22nd Jun 2005 14:05
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hm...interesting...let me try it out =)
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Prince of Creation
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Posted: 22nd Jun 2005 14:20
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o shiet..it works!!! YeAH I didn't think it'll work cause the help file didn't mention about supporting .gif file. Thanks guy...
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James Morgan
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Posted: 23rd Jun 2005 07:16
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Hmm, I thought the whole reason it wasnt included originally was due to licensing. Did I just imagine that or have they fixed the licensing problem??

Hello!
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Zappo
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Posted: 23rd Jun 2005 10:15 Edited at: 23rd Jun 2005 10:19
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A little bit of history...

Way back in 1983 the LZW compression algorithm was patented. In 1984 it was documented and became popular due to its simplicity. A company called Unisys owned the patent to LZW but that fact wasnt really publicized and nobody seemed too bothered (including Unisys). Many people used these algorithms which they thought were open source, in various file formats including TIFF. In 1987 Compuserve released the free open specification for the GIF image, also based on LZW compression. All was well in the world of computer imagery and GIF became incredibly popular.
Then in December 1994, Unisys decided that they wanted a license fee from anyone making software which used the LZW compression method to create GIF images. They also tried to get money from people who made programs to decompress LZW files (i.e. read GIF images) but this was contested. It was because of this that some of the great minds of the online graphics community got together and started work on the patent-free PNG format as a replacement for GIF.
The greedy ways of Unisys came to an end however when the patents expired in June 2003 (USA) and June 2004 (Europe and Japan).
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mm0zct
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Posted: 23rd Jun 2005 10:16
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i thought gif's licence limitations expired years ago

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qwe
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Posted: 23rd Jun 2005 10:49 Edited at: 23rd Jun 2005 10:49
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interesting note from wikipedia

IBM has also patented the LZW algorithm, but has never enforced this patent. According to the Free Software Foundation that patent will expire on August 11, 2006 in the United States

ps mm0 wikipedia confirms that the expiration date was 2003 in US and 2004 in Japan/euro

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Zappo
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Posted: 24th Jun 2005 09:31
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I had heard that IBM had tried to patent the same LZW algorithm, but I thought it was actually before Unisys. The rumour I heard was that the patent office made a mistake giving the patent to Unisys as they didn't realize it was the same routine that IBM had already submitted.

Not sure if its true though.
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Peter H
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Posted: 24th Jun 2005 10:28
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hehe, pngs rock

too bad DB has weird problems with their transparency

"We make the worst games in the universe."

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