Patrick Walton
314185684c
Implement stem darkening and split ECAA into ECAA and MCAA.
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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
1846ebd861
Use sRGB color textures where available
2017-10-06 19:18:34 -07:00
Patrick Walton
6a7c013e61
Make the hints a uniform instead of a buffer texture.
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Saves a good bit of memory traffic during vertex shading.
2017-10-05 19:14:52 -07:00
Patrick Walton
157292175b
Use instanced rendering in the 3D demo.
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This massively decreases the load time and memory usage in exchange for more draw calls.
2017-10-03 15:24:56 -07:00
Patrick Walton
b631fec80f
Cache font mesh libraries on the server
2017-10-02 19:58:38 -07:00
Patrick Walton
60ff71be84
Add an experimental implementation of macOS-like font dilation
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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
190c9fb35f
Tweak the maximum and minimum zoom parameters for the text demo
2017-09-29 17:00:34 -07:00
Patrick Walton
08b9afdca9
Implement subpixel glyph positioning in the text demo
2017-09-29 11:58:16 -07:00
Patrick Walton
7e4308d52e
Key glyphs in the atlas off "glyph keys" rather than raw glyph IDs
2017-09-28 16:02:08 -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
2197896c4f
Keep the camera and view in a sensible state when changing fonts in the text demo
2017-09-23 13:09:45 -07:00
Patrick Walton
0e9a59088c
Implement bare-bones support for debugging SVG meshes
2017-09-19 20:19:53 -07:00
Patrick Walton
83cfb1d9d5
Make glyphs transparent.
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Avoids cutting off the bottom of the "g" in the text demo.
2017-09-19 13:57:56 -07:00
Patrick Walton
22d2a6590b
Blend when compositing in the text demo
2017-09-19 11:42:37 -07:00
Patrick Walton
0087c1ed50
Add SSAA support to the benchmarking tool
2017-09-13 21:41:33 -07:00
Patrick Walton
a21afa9bb7
Fix the interaction between the camera and SSAA in the SVG demo
2017-09-13 20:41:04 -07:00
Patrick Walton
6642cc7aa4
Limit how far the user can zoom the camera out
2017-09-13 13:30:26 -07:00
Patrick Walton
d64a28c166
Beautify the timings display and make it work with the SVG and 3D demos
2017-09-13 11:56:40 -07:00
Patrick Walton
65eecbf071
Don't allow the user to zoom in so far that we run out of space in the glyph atlas
2017-09-12 22:32:18 -07:00
Patrick Walton
f68da75c75
Implement SSAA for the 3D demo.
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This commit additionally refactors transforms to be resolution-independent as much as possible throughout all the demos.
2017-09-12 19:43:43 -07:00
Patrick Walton
2c8c11b303
Get a bare-minimum benchmark up and running
2017-09-12 12:40:14 -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
65e3278e94
Add zoom in and zoom out buttons for those without scale gestures
2017-09-10 13:17:24 -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
43513da957
Add a simple model of the Mozilla Monument to the 3D scene
2017-09-09 00:04:35 -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
82d2f076d7
Add basic subpixel AA support for SSAA.
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No LCD filter is implemented yet, so the color fringing is currently fairly extreme.
2017-09-06 16:32:11 -07:00
Patrick Walton
4b7ac0182c
Implement basic working 3D support
2017-09-05 19:47:19 -07:00
Patrick Walton
4ab917b79b
Snap baselines to the nearest pixel
2017-09-03 16:35:10 -07:00
Patrick Walton
24cfb03c66
Don't count the padding between glyphs as part of the atlas rect.
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This was causing nasty aliasing artefacts.
2017-09-03 13:12:33 -07:00
Patrick Walton
f968a4ac20
Don't do server-side hinting
2017-09-03 13:03:45 -07:00
Patrick Walton
7360a41a60
Factor camera logic into a separate object in preparation for the 3D demo
2017-09-02 12:14:10 -07:00
Patrick Walton
632202e5eb
Implement a basic mesh debugger
2017-09-01 22:29:05 -07:00
Patrick Walton
1eb1bb5343
Stub a mesh debugger app
2017-09-01 18:11:44 -07:00
Patrick Walton
a43a09b9d3
Allow the demo text to be changed by double-clicking
2017-09-01 16:31:40 -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
e448ba7b30
Switch from ES6 interpolation to Handlebars and add a simple landing page
2017-08-30 23:25:58 -07:00
Patrick Walton
d6767219ff
Automatically load some built-in fonts and SVGs
2017-08-30 19:48:18 -07:00
Patrick Walton
58b558de64
Make the demo UI less cluttered
2017-08-30 17:01:28 -07:00
Patrick Walton
8d6636b1cf
Add `-demo` to the SVG and text demo files
2017-08-29 18:57:43 -07:00