michael/pathfinder
michael
/
pathfinder
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
427 Commits 1 Branch 0 Tags 10 MiB
Commit Graph

47 Commits

Author SHA1 Message Date
Patrick Walton 95a1dd0195 Eliminate the distinction between layout and display pixels per unit 2017-11-30 09:51:07 -08:00
Patrick Walton 86df78f939 Flesh out the integration test more 2017-11-17 17:06:59 -08:00
Patrick Walton 2578298198 More work on the integration test 2017-11-13 17:23:03 -08:00
Patrick Walton 2e90b3bce8 Multiply stem darkening amounts by sqrt(2). 
This compensates for the fact that macOS dilation is relative to the pixel square, while our dilation is relative to each vertex normal.
 2017-11-11 11:29:52 -08:00
Patrick Walton ceb9d2bb80 Tweak the max stem darkening ppem to avoid a "pop" when zooming 2017-11-11 09:41:21 -08:00
Patrick Walton d90d3af21b Fix swapped min/max stem darkening amounts 2017-11-11 09:38:28 -08:00
Patrick Walton 997e9b852a Round x-heights naturally instead of rounding up. 
I think this matches what macOS does.
 2017-11-07 17:39:29 -08:00
Patrick Walton e5b76726d9 Use the LUT to gamma correct text, and fix stem darkening math 2017-11-07 17:24:19 -08:00
Patrick Walton 314185684c Implement stem darkening and split ECAA into ECAA and MCAA. 
We now implement stem darkening (also known as font dilation) like
macOS and FreeType under certain configurations. This pushes out font
outlines along their normals slightly in order to make small text easier
to read. This is especially important when performing gamma correction,
as otherwise text can end up too light.

Because the stem darkening is implemented in the vertex shader, it can
easily break the mesh. Therefore, I needed to implement a new rendering
mode that does not use the mesh. It's a variant of ECAA, and for
clarity's sake I've renamed the related antialiasing methods:

* MCAA stands for "mesh coverage antialiasing" and is the new name for
what was called "ECAA" prior to this patch.

* ECAA now stands for "edge coverage antialiasing". It does not use the
mesh but rather computes winding numbers from scratch for every pixel.
Surprisingly, despite being worse asymptotically, this usually ends up
being faster than MCAA at small font sizes, presumably because there are
fewer vertices to transform.

* XCAA, "exact coverage antialiasing" is a generic term that refers to
both ECAA and MCAA. References to ECAA have been changed to XCAA as
needed.
 2017-10-15 13:28:49 -07:00
Patrick Walton b631fec80f Cache font mesh libraries on the server 2017-10-02 19:58:38 -07:00
Patrick Walton 7bbd02ed85 Send mesh libraries to the client in raw binary instead of Base64 and JSON 2017-10-02 16:31:54 -07:00
Patrick Walton f3f893302a Introduce a simple file format for serializing meshes, and use it in the demo 2017-10-02 15:17:21 -07:00
Patrick Walton 60ff71be84 Add an experimental implementation of macOS-like font dilation 
Following Apple's earlier terminology, this is exposed as "strong"
subpixel AA.
 2017-09-29 22:12:24 -07:00
Patrick Walton 99f6f2a104 Snap stems up to the nearest pixel when hinting 2017-09-29 18:02:33 -07:00
Patrick Walton 08b9afdca9 Implement subpixel glyph positioning in the text demo 2017-09-29 11:58:16 -07:00
Patrick Walton 37a88dfcd9 Use the Inter UI font in the demo 2017-09-28 15:23:52 -07:00
Patrick Walton e8135fbfe0 TSLint the demo 2017-09-28 14:34:48 -07:00
Patrick Walton 1675944dfb Rewrite the text run and glyph store classes for simplicity 2017-09-28 09:48:05 -07:00
Patrick Walton 17b34685a1 Factor mesh expansion out of the glyph store 2017-09-26 18:55:47 -07:00
Patrick Walton b6c6c70ef0 Benchmark the server-side partitioning 2017-09-26 15:38:50 -07:00
Patrick Walton 6b0c215148 Get ECAA working in the benchmark 2017-09-26 13:32:22 -07:00
Patrick Walton a5b0e9bf9a Allow different glyphs to be selected in the mesh debugger 2017-09-19 17:36:12 -07:00
Patrick Walton 5d267cc2c8 Take the xMin/left values of the glyphs' bounds into account when determining their pixel rects. 
This prevents glyph images from "bleeding" into each other horizontally.
 2017-09-15 15:57:32 -04:00
Patrick Walton 5c45b6f94e Prevent the user from scrolling the text out of view 2017-09-13 18:39:19 -07:00
Patrick Walton eae20eb7ca Fix glyph positioning in the 3D view 2017-09-11 19:09:43 -07:00
Patrick Walton 94c5ea181f Initially zoom the text to fit in the text demo 2017-09-11 16:57:53 -07:00
Patrick Walton 3dd1d73f81 Start the camera centered on the text in the text demo 2017-09-11 16:07:11 -07:00
Patrick Walton eb9c0ceb4d Implement "slight" hinting by rounding x-heights up to the nearest pixel 2017-09-09 13:12:51 -07:00
Patrick Walton 57374e9f30 Add all four sides of the Mozilla Monument to the 3D demo 2017-09-07 19:01:55 -07:00
Patrick Walton e34ca3d3e4 Stub support for multiple text frames 2017-09-07 16:13:55 -07:00
Patrick Walton 7de664e4a9 Implement some rudimentary text layout for the 3D demo 2017-09-06 22:11:32 -07:00
Patrick Walton acf2e0be00 Implement mesh expansion so that the 3D demo can actually render strings of text 2017-09-06 14:11:58 -07:00
Patrick Walton 4ab917b79b Snap baselines to the nearest pixel 2017-09-03 16:35:10 -07:00
Patrick Walton 632202e5eb Implement a basic mesh debugger 2017-09-01 22:29:05 -07:00
Patrick Walton f182686ba8 Do some more refactoring in preparation for the 3D view 2017-08-31 17:08:22 -07:00
Patrick Walton b75c327017 Factor out text layout into a separate class so it can be used by the text and 3D demos 2017-08-31 16:33:21 -07:00
Patrick Walton 8d6636b1cf Add `-demo` to the SVG and text demo files 2017-08-29 18:57:43 -07:00
Patrick Walton 40c0e9b8c5 Use ES6 templates to reduce duplication in the demo HTML 2017-08-29 16:04:40 -07:00
Patrick Walton cd3c1c996c Get SSAA working for the tiger 2017-08-29 14:31:45 -07:00
Patrick Walton c47aa5c4d0 Get the SVG demo rendering something 2017-08-29 12:29:16 -07:00
Patrick Walton 8e2172f06f Start implementing basic SVG rendering. Not working yet. 2017-08-28 22:11:15 -07:00
Patrick Walton 0bae14b326 Render SVG paths to an off screen framebuffer 2017-08-28 17:18:44 -07:00
Patrick Walton 4d16df17db Implement the server-side support for SVG path partitioning in the demo 2017-08-28 16:47:27 -07:00
Patrick Walton 5f28f8b666 Stub out some more functionality for the SVG demo 2017-08-27 12:43:17 -07:00
Patrick Walton 72f5f4ee6d Factor antialiasing strategies out into separate modules 2017-08-26 13:47:18 -07:00
Patrick Walton 9e7d922863 Factor out the app controller logic so we can support multiple demos more easily 2017-08-26 12:54:25 -07:00
Patrick Walton 01d1382324 Begin splitting up `index.ts` 2017-08-25 20:20:45 -07:00
Renamed from demo/client/src/index.ts (Browse further)