Sources/Classes/Toolkits/Model/OpenGL/IBO/Utilities/Elements/OpenGLIBOElements.m
//--------------------------------------------------------------------------- |
// |
// File: OpenGLIBOIndices.h |
// |
// Abstract: Utility class to deserialize a property list that describes |
// a VBO's elements. |
// |
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//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#import "OpenGLIBOElements.h" |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark Private - Data Structures |
//--------------------------------------------------------------------------- |
struct OpenGLIBOElementData |
{ |
GLsizeiptr count; |
GLsizeiptr size; |
GLshort *array; |
}; |
typedef struct OpenGLIBOElementData OpenGLIBOElementData; |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
@implementation OpenGLIBOElements |
//--------------------------------------------------------------------------- |
- (id) initElementsWithDictionary:(NSDictionary *)theDictionary |
{ |
self = [super init]; |
if( self ) |
{ |
mpElements = (OpenGLIBOElementDataRef)calloc(1, sizeof(OpenGLIBOElementData)); |
if( mpElements != NULL ) |
{ |
NSDictionary *elements = [theDictionary objectForKey:@"Elements"]; |
if( elements ) |
{ |
NSNumber *count = [elements objectForKey:@"Columns"]; |
mpElements->count = [count integerValue]; |
mpElements->size = mpElements->count * sizeof(GLshort); |
mpElements->array = (GLshort *)calloc(1, mpElements->size); |
if( mpElements->array != NULL ) |
{ |
NSArray *table = [elements objectForKey:@"Table"]; |
if( table ) |
{ |
NSArray *row = [table objectAtIndex:0]; |
NSNumber *item = nil; |
GLuint i = 0; |
for( item in row ) |
{ |
mpElements->array[i] = [item shortValue]; |
i++; |
} // for |
} // if |
} // if |
} // if |
} // if |
} // if |
return( self ); |
} // initElementsWithDictionary |
//--------------------------------------------------------------------------- |
- (void) dealloc |
{ |
if( mpElements != NULL ) |
{ |
if( mpElements->array != NULL ) |
{ |
free( mpElements->array ); |
} // if |
free( mpElements ); |
mpElements = NULL; |
} // if |
[super dealloc]; |
} // dealloc |
//--------------------------------------------------------------------------- |
- (GLsizeiptr) count |
{ |
return( mpElements->count ); |
} // count |
//--------------------------------------------------------------------------- |
- (GLsizeiptr) size |
{ |
return( mpElements->size ); |
} // size |
//--------------------------------------------------------------------------- |
- (GLshort *) array |
{ |
return( mpElements->array ); |
} // array |
//--------------------------------------------------------------------------- |
@end |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
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