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DarkBASIC Professional Discussion / Memblocks

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Algae Man
23
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Joined: 11th Nov 2002
Location: Canada
Posted: 2nd Nov 2003 00:30
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I just got DarkBasic Pro in the mail (I've had the original DB for a few years) and I'm really excited about memblocks but haven't a clue how to use them. The manual explains nothing about how to use them. Could someone please point me in the right direction? Where could I find explanations of memblocks? Thanks in advance.
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Kentaree
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Joined: 5th Oct 2002
Location: Clonmel, Ireland
Posted: 2nd Nov 2003 00:44
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There's more info in the DarkBASIC Classic 1.13 manual. You can download it from: ftp://ftp.thegamecreators.com/docs/DarkBASIC_Manual_v113.zip

I would be unstoppable if I could just get started...
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Algae Man
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Posted: 5th Nov 2003 22:30 Edited at: 5th Nov 2003 22:38
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Thanks, but that manual still doesn't really explain much. For example, it tells me the data structure of IMAGE memblocks.


Quote: "Memblock- Image (12 Byte Header)
Header
4 BYTES (DWORD) Width
4 BYTES (DWORD) Height
4 BYTES (DWORD) Depth
Data
X BYTES - Pixel Data (a 16bit bitmap uses 2 BYTES per Pixel)
"


But what does "X BYTES" mean? What do the two bytes do? How would I convert an RGB value to two bytes? Could someone please show me some code showing how to draw by manipulating memblocks? Thanks.
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Dr OcCuLt
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Location: a Dark Deep Dark pit, it dark in here
Posted: 5th Nov 2003 23:20 Edited at: 5th Nov 2003 23:21
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number of BYTE is X=Width*Height*4 for a image then has a Depth of 32bit, 4 BYTES per Pixel.
BYTE 1-Blue
BYTE 2-Green
BYTE 3-Red
BYTE 4-Alpha

there is some code in the code box that ues this.

--Dr 0--
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Algae Man
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Posted: 6th Nov 2003 00:01
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Thanks Dr. OcCuLt! I treid out your code and tinkered with it a little. I think I understand now! But what about 16-bit images? Or are they obsolete now because processing speeds are faster?
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