code

Hi all!!! After some weeks developing and doing some research with Cocoa and xcode, I’ve some cool screenshot to show!!

I’ve called this tool “GenLab” (Generator Lab), and will be the fusion of my 3 tools developed until now: Texture Generator, Texture Library and Object Generator… and probably another cool idea

By the moment, I’ve started integrating the Texture Generator, and all seems to work fine (as you can see ), once this tool is totally ported, I’ll start with the other 2.

Just a fast code lesson:

Assumptions:
gfx_data (uchar) –> our “traditional” RGB image buffer
IVFinalexture (NSImageView) –> where we want to view our image
bmp (NSBitmapImageRep) –> Temporal, to store the rgb buffer
img (NSImage) –> Temporal, to store the Bitmap

So the sequence (more or less) is:
uchar buffer –> NSBitmapImageRep –> NSImage –> NSImageView

unsigned char *gfx_data;
int gfx_width = 256;
int gfx_heigth = 256;
int gfx_samplespp = 3;

gfx_data = malloc (gfx_width*gfx_heigth*gfx_samplespp);
int i=0;
int max = gfx_width*gfx_heigth*gfx_samplespp;
for (i=0; i<(max);i+=3)
{
// Do your demoscene-fancy effect here
int valor = sin((float)i*4.0/(float)(gfx_width*gfx_heigth))*255.0;
if (valor<0) valor="valor*-1;
gfx_data[i]= valor;
}

// Convert buffer to NSBitmapImageRep
NSBitmapImageRep* bmp = [[NSBitmapImageRep alloc]initWithBitmapDataPlanes:&gfx_data
pixelsWide: gfx_width
pixelsHigh: gfx_heigth
bitsPerSample: 8
samplesPerPixel: gfx_samplespp
hasAlpha: NO
isPlanar: NO
colorSpaceName: NSCalibratedRGBColorSpace
bytesPerRow: (gfx_width*gfx_samplespp)
bitsPerPixel: 24];

// Store the NSBitmapImageRep in a NSImage structure
NSImage *img = [NSImage alloc];
[img addRepresentation:bmp];

// Set the NSImage into the NSImageView (IVFinaltexture)
if ([IVFinaltexture image]!=nil)
[[IVFinaltexture image] release];
[IVFinaltexture setImage:img];
//free (gfx_data); // WTF! system crashes if I uncomment this!
[bmp release];
[img release];

————–

And… obviously… the result!!

.happy coding!!

weee!!!! quite simple!!