Texture loading code check.

CarbonX

Moderator

Posts: 102
Joined: 2003.07

Post: #1

Jul 31, 2004 — 10:47 PM

Here is some code I am using to load RGB data into an array of GLubytes and I was just wondering if there were any problems with it

Code:

// in HeightMapView.h

    GLubyte lowestTexture  [3] [256] [256];

    GLubyte lowTexture     [3] [256] [256];

    GLubyte highTexture    [3] [256] [256];

    GLubyte highestTexture [3] [256] [256];

//in HeightMapView.m

-(void) loadAltitudePictureLowest: (NSString *) lowestName low: (NSString *) lowName high: (NSString *) highName highest: (NSString *) highestName

{

    NSBitmapImageRep *bitmap;

    NSImage *image;

    long i;

    long j;

    int bitmapSize;

    image = [ NSImage imageNamed: lowestName];

    bitmap = [[NSBitmapImageRep alloc]initWithData: [ image TIFFRepresentation]];

    bitmapSize = [bitmap size].width;

    if (bitmap == nil)

    { NSLog(@"lowestTexture: not loaded!"); return;}

    for (i = 0; i <  bitmapSize; i++)

    {

        for( j = 0; j < bitmapSize; j++)

        {

            lowestTexture[0] [i] [j] = (GLubyte) ([bitmap bitmapData][(i+(j*bitmapSize))*24/8]); 

            lowestTexture[1] [i] [j] = (GLubyte) ([bitmap bitmapData][(i+(j*bitmapSize))*24/8+1]);

            lowestTexture[2] [i] [j] = (GLubyte) ([bitmap bitmapData][(i+(j*bitmapSize))*24/8+2]);

        }

    }

I think that's about all of the relevant code for this particular function

the textures are 256x256 pixels in size, all I want to know is "will this load the image data into the textures properly?"

-CarbonX

Possibly Related Threads...

Thread:		Author	Replies:	Views:	Last Post
	Howto check whether Ipod is playing music	Bersaelor	2	3,626	Jan 2, 2010 09:54 AM Last Post: Bersaelor
	iPhone texture loading issue	yotryu	0	3,121	Mar 11, 2009 03:40 AM Last Post: yotryu
	Texture Mapping: Loading a texture from a .bmp file?	ishrock	5	5,002	Dec 13, 2008 09:27 AM Last Post: ThemsAllTook
	OpenGL Texture Loading & Sprites	corporatenewt	2	10,597	Jan 30, 2008 12:39 PM Last Post: ynda20
	Texture Loading in Cocoa...	dave05	3	7,666	Dec 11, 2007 03:12 AM Last Post: DoG