Sources/Classes/Application/Model/OpenGL/Texture/Standard/OpenGLPaletteTexture.m
//--------------------------------------------------------------------------- |
// |
// File: OpenGLPaletteTexture.m |
// |
// Abstract: Utility toolkit for handling texture color palette |
// |
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//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#import "OpenGLPaletteTexture.h" |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark OpenGL Shader Palette Initializations |
//--------------------------------------------------------------------------- |
static NSDictionary *NSDictionaryCreateForPalette(const GLuint thePaletteSize, |
const GLenum theActiveTexture) |
{ |
NSArray *paletteKeys |
= [NSArray arrayWithObjects: |
@"active", |
@"count", |
@"target", |
@"internalformat", |
@"width", |
@"format", |
@"type", |
@"min", |
@"mag", |
nil]; |
NSArray *paletteObjects |
= [NSArray arrayWithObjects: |
[NSNumber numberWithInt:theActiveTexture], |
[NSNumber numberWithInt:1], |
[NSNumber numberWithInt:GL_TEXTURE_1D], |
[NSNumber numberWithInt:GL_RGBA], |
[NSNumber numberWithInt:thePaletteSize], |
[NSNumber numberWithInt:GL_RGB], |
[NSNumber numberWithInt:GL_FLOAT], |
[NSNumber numberWithInt:GL_NEAREST], |
[NSNumber numberWithInt:GL_NEAREST], |
nil]; |
return [NSMutableDictionary dictionaryWithObjects:paletteObjects |
forKeys:paletteKeys]; |
} // NSDictionaryCreateForPalette |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
@implementation OpenGLPaletteTexture |
//--------------------------------------------------------------------------- |
// |
// Initialize |
// |
//--------------------------------------------------------------------------- |
- (id) initPaletteWithSize:(const GLuint)thePaletteSize |
activeTexture:(const GLenum)theActiveTexture |
{ |
NSDictionary *dictionary = NSDictionaryCreateForPalette(thePaletteSize, |
theActiveTexture); |
if( dictionary ) |
{ |
self = [super initTextureWithDictionary:dictionary]; |
if( self ) |
{ |
mpPalette = [dictionary retain]; |
} // if |
return self; |
} // if |
return nil; |
} // initPaletteWithSize |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark Delete Palette |
//--------------------------------------------------------------------------- |
- (void) dealloc |
{ |
if( mpPalette ) |
{ |
[mpPalette release]; |
} // if |
[super dealloc]; |
} // dealloc |
//--------------------------------------------------------------------------- |
@end |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
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