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* Use foreign-types from crates.ioJoe Wilm2017-06-27
| | | | | We had previously vendored a very early version of this package before it was ever published.
* changes osx fallback symbol font styleJames A Keene2017-06-06
| | | | | | Previously, the fallback symbol font copied the style of the font from the config. However, the only available style for the fallback symbol font is Normal slant, Normal weight.
* macOS use system font fallbackMartin Algesten2017-06-06
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* final core-graphics extensions moved upstreamMartin Algesten2017-06-01
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* remove code that has been upstreamedMartin Algesten2017-05-31
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* updated some font depsMartin Algesten2017-05-31
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* avoid unused warningMartin Algesten2017-05-31
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* Fixes font raster for mono, gray bitmaps (#590)Joe Wilm2017-05-28
| | | | | | | | | | | | | | As it turns out, FreeType does not always provide glyph data in LCD mode as we requested. We now correctly handle several common modes returned from FreeType including Lcd, Mono, and Gray. Note that we don't check number of grays at this time since it's 1. Almost always 256, according to FreeType docs 2. Not available in the Rust FreeType bindings being used Resolves #515 Resolves #185 Resolves #482
* Fix sign error in CoreText font rasterizerJoe Wilm2017-05-06
| | | | | | | Descent was being reported as a positive value instead of negative. This caused the background and text alignment to be off dramatically. Resolves #545
* Fix glyph offsets in cellJoe Wilm2017-05-06
| | | | | | We previously had a hard-coded value for aligning glyphs within cells. The font descent is now used, and the offset should be correct by default.
* Remove unnecessary size argument to metrics functionAaron Williamson2017-05-01
| | | | | The changes to metric consumption rendered the size argument unnecessary, remove it.
* Improve freetype metric usageAaron Williamson2017-05-01
| | | | | | The font metrics function was using freetype metrics in an ineffective way, improve the use of those metrics and remove the now unnecessary separate default values for font offset in linux.
* font::fc: Remove unneeded cloneHarlan Lieberman-Berg2017-03-01
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* font::ft: misc style cleanup.Harlan Lieberman-Berg2017-03-01
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* Drop unnecessary unsafe on add_charsetHarlan Lieberman-Berg2017-03-01
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* Switch over to using font_match everywhere.Harlan Lieberman-Berg2017-03-01
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* Rework font cache to cache on pathsHarlan Lieberman-Berg2017-03-01
| | | | | | | This is done in order to help prevent us from loading the same font face over and over again under separate keys. We still incur the performance hit of doing the fontconfig search each new glyph, but that's unavoidable without more extensive refactoring.
* First pass of font fallback renderingHarlan Lieberman-Berg2017-03-01
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* Fix fc::Pattern::add_charsetJoe Wilm2017-03-01
| | | | | The lifetime constraints didn't do what I thought, and such constraints turn out to be unnecessary anyhow.
* PoC find font with glyphJoe Wilm2017-03-01
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* Alacritty now compiles on stable Rust :tada:Joe Wilm2017-02-03
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* Optimize glyph cache accessJoe Wilm2017-01-26
| | | | | | | | | | | | | | | | | | | | | | Loading a glyph from the cache is a very hot operation in the renderer. The original implementation would first check if a glyph was loaded and then call `get()` which would have to search a second time. This showed up as a very slow point in profiles. This patch addresses glyph cache access in two ways: by using a faster hasher optimized for small keys (fnv), and by using the entry API for fetching a cached glyph. The `fnv` hasher is faster than the default and is very efficient for small keys. Using the entry API on the HashMap means only 1 lookup instead of two. The entry API has a downside where the key needs to get cloned on fetches. Reducing the GlyphKey width to 64-bits helps in both areas. Copying an 8-byte wide type is very cheap and thus limits downside of the entry API. The small width also helps with the hasher performance. Over all, this patch reduced typical render times by several hundred microseconds on a 2013 MacBook Pro with a full screen terminal full of text.
* Use the log-crate instead of printing to stdoutLukas Lueg2017-01-23
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* add suggestive fallback messages on unavailable fontsTom Crayford2017-01-12
| | | | as per https://github.com/jwilm/alacritty/issues/39
* make thin stroke rendering configurableTom Crayford2017-01-12
| | | | | | Makes thin stroke rendering for darwin configurable by a new toplevel key under `font:` in the config file. Defaults to false, has no impact on non macos.
* Rework font loadingJoe Wilm2017-01-02
| | | | | | | | | | | | | | This work started because we wanted to be able to simply say "monospace" on Linux and have it give us some sort of font. The config format for fonts changed to accomodate this new paradigm. As a result, italic and bold can have different families from the normal (roman) face. The fontconfig based font resolution probably works a lot better than the CoreText version at this point. With CoreText, we simply iterate over fonts and check it they match the requested properties. What's worse is that the CoreText version requires a valid family. With fontconfig, it will just provide the closest matching thing and use it (unless a specific style is requested).
* Propagate font rasterizer errorsJoe Wilm2016-12-31
| | | | | This allows consumers of the font crate to handle errors instead of the library panicking.
* Add ffi-util crate and use in fontconfig wrapperJoe Wilm2016-12-30
| | | | This cleans up and fixes the C-type wrapping for fontconfig.
* Refactor FontConfig wrappersJoe Wilm2016-12-30
| | | | | | | | There's now a proper wrapper in place for working with the FontConfig library. This should help significantly with error handling with font loading; at least, the FontConfig code shouldn't panic. The FreeType rasterizer still needs to be updated to handle missing fonts, and a more sensible default font should be specified.
* Misc formatting fixesJoe Wilm2016-12-16
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* Replace remaining use of `try!` with `?`Joe Wilm2016-12-16
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* Add support for recording/running ref testsJoe Wilm2016-11-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ref tests use a recording of the terminal protocol and a serialization of the grid state to check that the parsing and action handling systems produce the correct result. Ref tests may be recorded by running alacritty with `--ref-test` and closing the terminal by using the window "X" button. At that point, the recording is fully written to disk, and a serialization of important state is recorded. Those files should be moved to an appropriate folder in the `tests/ref/` tree, and the `ref_test!` macro invocation should be updated accordingly. A couple of changes were necessary to make this work: * Ref tests shouldn't create a pty; the pty was refactored out of the `Term` type. * Repeatable lines/cols were needed; on startup, the terminal is resized * by default to 80x24 though that may be changed by passing `--dimensions w h`. * Calculating window size based on desired rows/columns and font metrics required making load_font callable multiple times. * Refactor types into library crate so they may be imported in an integration test. * A whole bunch of types needed symmetric serialization and deserialization. Mostly this was just adding derives, but the custom deserialization of Rgb had to change to a deserialize_with function. This initially adds one ref test as a sanity check, and more will be added in subsequent commits. This initial ref tests just starts the terminal and runs `ll`.
* Support bold/italic font rendering on LinuxJoe Wilm2016-08-14
| | | | | | The FreeType font Rasterizer API is updated to match the CoreText Rasterizer. This enabled bold/italic fonts since the rest of the codebase has already been updated.
* Support bold/italic font rendering on macOSJoe Wilm2016-08-12
| | | | | | | | | | | | | | | | | | This patch adds support for rendering italic fonts and bold fonts. The `font` crate has a couple of new paradigms to support this: font keys and glyph keys. `FontKey` is a lightweight (4 byte) identifier for a font loaded out of the rasterizer. This replaces `FontDesc` for rasterizing glyphs from a loaded font. `FontDesc` had the problem that it contained two strings, and the glyph cache needs to store a copy of the font key for every loaded glyph. `GlyphKey` is now passed to the glyph rasterization method instead of a simple `char`. `GlyphKey` contains information including font, size, and the character. The rasterizer APIs do not define what happens when loading the same font from a `FontDesc` more than once. It is assumed that the application will track the resulting `FontKey` instead of asking the font to be loaded multiple times.
* Add support for CGContextSetFontSmoothingStyleJoe Wilm2016-08-03
| | | | | This enables narrower rendering of glyphs and it tends to look a bit better. iTerm2 and Terminal both do this.
* Remove noisey printing on macOSJoe Wilm2016-07-12
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* Add license headers to source filesJoe Wilm2016-06-29
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* Fix subpixel rendering for macOSJoe Wilm2016-06-24
| | | | | | | | This adds a bunch of APIs to CGContext (and supporting types) that aren't actually necessary to turn on subpixel rendering. The key for subpixel rendering were the options passed to bitmap_context_create(). Specifically, kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host are necessary to enable it.
* Add support for macOSJoe Wilm2016-06-14
Alacritty now runs on macOS using CoreText for font rendering. The font rendering subsystems were moved into a separate crate called `font`. The font crate provides a unified (albeit limited) API which wraps CoreText on macOS and FreeType/FontConfig on other platforms. The unified API differed slightly from what the original Rasterizer for freetype implemented, and it was updated accordingly. The cell separation properties (sep_x and sep_y) are now premultiplied into the cell width and height. They were previously passed through as uniforms to the shaders; removing them prevents a lot of redundant work. `libc` has some differences between Linux and macOS. `__errno_location` is not available on macOS, and the `errno` crate was brought in to provide a cross-platform API for dealing with errno. Differences in `openpty` were handled by implementing a macOS specific version. It would be worth investigating a way to unify the implementations at some point. A type mismatch with TIOCSCTTY was resolved with a cast. Differences in libc::passwd struct fields were resolved by using std::mem::uninitialized instead of zeroing the struct ourselves. This has the benefit of being much cleaner. The thread setup had to be changed to support both macOS and Linux. macOS requires that events from the window be handled on the main thread. Failure to do so will prevent the glutin window from even showing up! For this reason, the renderer and parser were moved to their own thread, and the input is received on the main thread. This is essentially reverse the setup prior to this commit. Renderer initialization (and thus font cache initialization) had to be moved to the rendering thread as well since there's no way to make_context(null) with glx on Linux. Trying to just call make_context a second time on the rendering thread had resulted in a panic!.