Hi, sorry for the confusion; I think its better if I explain my current approach first:
1. I create a FTC_Manager, FTC_CMapCache and FTC_ImageCache, and set them up. 2. I query a glyph ID from FTC_CMapCache. 3. I get a glyph image (almost always an outline in my case) from FTC_ImageCache. 4. I copy the FT_Glyph and perform translation and other transformation on it. 5. I rasterize the transformed FT_Glyph. 6. I use the rasterized bitmap. I wasn't able to cache the rasterized glyph because FTC_SBitCache doesn't support transformations. I am looking to do one of these things: 1. Being able to apply transformations in FTC_SBitCache. The main reason I can't use FTC_SBitCache is that I need to modify the outline. I need to translate it for subpixel positioning, italicize, embolden and apply other transformations before rasterizing. I think this is a niche use case, so I'm not fully expecting the cache subsystem to support this. 2. Being able to extend / implement my own cache types. Alternatively, I want to be able to implement a custom cache type, based on FTC_Manager. Based on the draft document in the previous email, this was possible, but didn't make it to release. This new cache would behave like FTC_SBitCache, but supports the various operations I need to do on the glyph outlines before rendering. I hope this clears things up. I was looking for ways to avoid rolling my own cache if possible. Thanks. Kelvin.
