//---------------------------------------------------------------------------

//

//  File: OpenGLPatternTexture.m

//

//  Abstract: Utility toolkit for handling texture color pattern

//

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//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#import "OpenGLPatternTexture.h"

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark OpenGL Pattern Texture Initializations

//---------------------------------------------------------------------------

static NSDictionary *NSDictionaryCreateForPattern(const NSInteger thePatternWidth,

                                                  const NSInteger thePatternHeight,

                                                  const GLenum theActiveTexture)

{

    NSArray *patternKeys

    = [NSArray arrayWithObjects:

       @"active",

       @"count",

       @"target",

       @"internalformat",

       @"width",

       @"height",

       @"format",

       @"type",

       @"min",

       @"mag",

       nil];

    NSArray *patternObjects

    = [NSArray arrayWithObjects:

       [NSNumber numberWithInt:theActiveTexture],

       [NSNumber numberWithInt:1],

       [NSNumber numberWithInt:GL_TEXTURE_2D],

       [NSNumber numberWithInt:GL_RGBA],

       [NSNumber numberWithInt:thePatternWidth],

       [NSNumber numberWithInt:thePatternHeight],

       [NSNumber numberWithInt:GL_LUMINANCE],

       [NSNumber numberWithInt:GL_FLOAT],

       [NSNumber numberWithInt:GL_LINEAR],

       [NSNumber numberWithInt:GL_LINEAR],

       nil];

    return [NSMutableDictionary dictionaryWithObjects:patternObjects

                                              forKeys:patternKeys];

} // NSDictionaryCreateForPattern

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

@implementation OpenGLPatternTexture

//---------------------------------------------------------------------------

//

// Initialize

//

//---------------------------------------------------------------------------

- (id) initPatternWithSize:(const NSInteger)thePatternWidth

                    height:(const NSInteger)thePatternHeight

             activeTexture:(const GLenum)theActiveTexture

{

    NSDictionary *dictionary = NSDictionaryCreateForPattern(thePatternWidth,

                                                            thePatternHeight,

                                                            theActiveTexture);

    if( dictionary )

    {

        self = [super initTextureWithDictionary:dictionary];

        if( self )

        {

            mpPattern = [dictionary retain];

        } // if

        return  self;

    } // if

    return nil;

} // initPatternWithSize

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Delete Pattern

//---------------------------------------------------------------------------

- (void) dealloc

{

    if( mpPattern )

    {

        [mpPattern release];

        mpPattern = nil;

    } // if

    [super dealloc];

} // dealloc

//---------------------------------------------------------------------------

@end

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------