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// This needs a little more work, it's rotating the input tileset and there are some artifacts (I think from GL_LINEAR interpolation), but it's working
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#import "GPUImageTwoInputFilter.h"
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#import "GPUImagePicture.h"
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@interface GPUImageMosaicFilter : GPUImageTwoInputFilter {
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GLint inputTileSizeUniform, numTilesUniform, displayTileSizeUniform, colorOnUniform;
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GPUImagePicture *pic;
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}
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// This filter takes an input tileset, the tiles must ascend in luminance
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// It looks at the input image and replaces each display tile with an input tile
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// according to the luminance of that tile. The idea was to replicate the ASCII
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// video filters seen in other apps, but the tileset can be anything.
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@property(readwrite, nonatomic) CGSize inputTileSize;
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@property(readwrite, nonatomic) float numTiles;
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@property(readwrite, nonatomic) CGSize displayTileSize;
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@property(readwrite, nonatomic) BOOL colorOn;
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@property(readwrite, nonatomic, copy) NSString *tileSet;
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@end
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