/*

        File: GLImagePlugIn.h

    Abstract: GLImagePlugin and GLImage classes.

     Version: 1.0

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*/

#import <Quartz/Quartz.h>

/* Set this to 1 to use a custom <QCPlugInOutputImageProvider> class instead of the convenience method -outputImageProviderFromTextureWithPixelFormat */

#define __USE_PROVIDER__ 1

/* Set this to 1 to implement the -copyRenderedTextureForCGLContext API instead of the -renderWithCGLContext one in the QCPlugInOutputImageProvider class */

#if __USE_PROVIDER__

#define __USE_RENDERED_TEXTURES__ 0

#endif

@interface GLImagePlugIn : QCPlugIn

{

}

/* Declare a property input port of type "Index" and with the key "inputWidth" */

@property NSUInteger inputWidth;

/* Declare a property input port of type "Color" and with the key "inputHeight" */

@property NSUInteger inputHeight;

/* Declare a property input port of type "Color" and with the key "inputStartColor" */

@property(assign) CGColorRef inputStartColor;

/* Declare a property input port of type "Color" and with the key "inputEndColor" */

@property(assign) CGColorRef inputEndColor;

/* Declare a property output port of type "Image" and with the key "outputGradientImage" */

@property(assign) id<QCPlugInOutputImageProvider> outputGradientImage;

@end

#if __USE_PROVIDER__

/* This internal class represents the images this plug-in produces */

@interface GLImage : NSObject <QCPlugInOutputImageProvider>

{

    CGColorSpaceRef                 _colorSpace;

    NSUInteger                      _width,

                                    _height;

    CGFloat                         _topColor[4], //RGBA

                                    _bottomColor[4]; //RGBA

}

- (id) initWithColorSpace:(CGColorSpaceRef)colorSpace pixelsWide:(NSUInteger)width pixelsHigh:(NSUInteger)height topColor:(CGColorRef)topColor bottomColor:(CGColorRef)bottomColor;

@end

#endif