void ufoProcessResetObeyMatteDirty( ufoProcess process_instance);
ufoProcessResetObeyMatteDirty resets the dirty status of obey matte raster, and may be called within ufoProcessRenderPixel, ufoProcessRenderLine, ufoProcessRenderRectangle, ufoProcessCanAvoidRendering, ufoProcessPreRender, ufoProcessPostRender, ufoProcessPreRenderPass, ufoProcessPostRenderPass, ufoProcessCalcDefinedRectangle, ufoProcessCalcNeedRectangles, ufoProcessCalcDefinedPixelTypes, and ufoProcessSpecifyConvertPixelTypes.
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