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PocketMatrix • View topic - Alpha Blitting
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Alpha Blitting


Alpha Blitting

Postby eugraphics » Feb 4, 2008 @ 8:26pm

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Postby edge » Feb 4, 2008 @ 8:55pm

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Postby eugraphics » Feb 4, 2008 @ 9:30pm

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Postby eugraphics » Feb 4, 2008 @ 10:03pm

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Postby edge » Feb 5, 2008 @ 11:31am

Hi,

Currently it's not possible to opacity blit using two surfaces. The PutPixel method may work, but is slow. I recommend not using it in time critical situations.
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Postby eugraphics » Feb 5, 2008 @ 9:49pm

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Postby edge » Feb 6, 2008 @ 8:59am

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Postby eugraphics » Feb 6, 2008 @ 10:09pm

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Postby edge » Feb 7, 2008 @ 9:50am

Hi,

Please refer to my previous reply. This is currently not possible, but will be added to one of our future releases.
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Postby Villy21 » Nov 1, 2008 @ 3:16pm

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Postby edge » Nov 3, 2008 @ 11:39am

Hi Villy,

For fonts we recommend using RGBA surfaces and make your characters white. Then you can use the EFX_COLORFILL effect to draw fonts in several colors.
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Postby Villy21 » Nov 5, 2008 @ 12:16pm

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Postby edge » Nov 6, 2008 @ 10:16am

Hi Villy,

Yes, right now it's only possible to use RGBA. Do you have all the characters in a sheet, or do you generate them one by one as you draw? The first method may be better for performance.
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Postby Villy21 » Nov 6, 2008 @ 10:36am

Yes I use dynamically created surfaces for several letters.

How may time you need to add AlphaBlt from 2 surfaces feature to EDGELIB ?

Of course I can make my own function for this but I spend a bit more time for this then you. And It's harder to explain to my boss why we need to buy EDGELIB :)
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Postby Villy21 » Nov 11, 2008 @ 11:52am

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