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View Full Version : Problem in drawing a 16bits image monochrome( black and white)



philm
02-20-2003, 11:34 AM
Hi,
can u tell me plz how to draw a 16bits image ( image monochrome(black and white) )
using "glDrawPixels";Assuming that we have a
buffer of that image as follow :

GLshort buffer[256][256];
what must be each parameter of "glDrawPixesls"
thanks for help

NitroGL
02-20-2003, 11:49 AM
glDrawPixels(256 /*Width*/, 256 /*Height*/, GL_LUMINANCE /*Image format*/, GL_SHORT /*Data type*/, buffer /*Image pointer*/);


Hope that helps.

As a reference: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/opengl/glfunc01_6lbn .asp (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/opengl/glfunc01_6lbn.asp)

Edit:
Now that I think about it, you might have to make buffer a pointer first by adding an '&' before buffer... I'm not sure (I don't use glDrawPixels a whole lot).

[This message has been edited by NitroGL (edited 02-20-2003).]

HS
02-20-2003, 12:39 PM
Just out of curiosity:

Why are you wasting 16 bits per pixel on a monochrome black and white image?