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47 commits

Author SHA1 Message Date
Steven Edwards
3313997e18 Reformat code style. 2015-09-11 05:28:25 -04:00
Steven Edwards
b7798d3968 Replace SubtableValidPredFunc with func signature. 2015-09-11 05:27:42 -04:00
Steven Edwards
1eddc32ee9 Remove unused funcs continueIf, nameEntryInASCII. 2015-09-11 05:26:37 -04:00
Steven Edwards
2cc98d1ad8 s/NameIDCode/NameID/g 2015-09-11 04:57:14 -04:00
Steven Edwards
134884e1a5 Make suggested changes in #19. 2015-09-09 07:19:54 -04:00
Steven Edwards
ff2b91c280 Move cmap consts to parseCmap. 2015-09-08 20:33:00 -04:00
Steven Edwards
7c1e8f1985 Reset re-adding Bounds when rebasing. 2015-09-08 20:30:39 -04:00
Steven Edwards
b1369b2178 Sort testCases by key name. 2015-09-08 18:56:39 -04:00
Steven Edwards
b78feafacd Refactor Name with parseCmap. 2015-09-05 06:02:41 -04:00
Steven Edwards
a05e60ea09 Update Name to match structure of parseCmap. 2015-09-05 04:25:49 -04:00
Steven Edwards
e259c188c8 Make NameID constants explicit. 2015-09-04 16:01:46 -04:00
Steven Edwards
c5aa1198c9 Remove TestStyle. 2015-09-04 16:01:46 -04:00
Steven Edwards
b81666dccc Move parseName to Name, rewritten to be lazy. 
Move nameEntryInASCII into the global scope.
 2015-09-04 16:01:45 -04:00
Steven Edwards
c765a57301 Remove eager reading of name table. 2015-09-04 16:01:45 -04:00
Steven Edwards
948039527f Rewrite parseName, Name to use new NameID constants. 
Also:

    - redefine nameInfo;
    - set font.nameRecord to *nameInfo;
    - remove Style func.
 2015-09-04 16:01:45 -04:00
Steven Edwards
52fdfd4dac Removed parentheses in parseName conditional. 2015-09-04 15:44:54 -04:00
Steven Edwards
5f872e4f01 Replaced bytes.Buffer with []byte in nameEntryInASCII. 2015-09-04 15:44:54 -04:00
Steven Edwards
32d6e5fc15 Add luximr, luxisr as test cases for Name, Style. 2015-09-04 15:44:54 -04:00
Steven Edwards
ae9e4ed6b9 Rewrite parseName to be consistent with freetype2. 2015-09-04 15:44:54 -04:00
Steven Edwards
b96c7d6be0 Sort table names in Font definition, parse. 2015-09-04 15:44:54 -04:00
Steven Edwards
dc8d81915d Set f.nameRecord to its name and style. 
Code was returning from parseHead before setting the nameRecord.
 2015-09-04 15:44:53 -04:00
Steven Edwards
f90b2f4820 Add tests for Name, Style funcs using luxisr font. 2015-09-04 15:44:53 -04:00
Steven Edwards
efd8dbcc39 Inlined decodeUTF16 func to remove runes.go 2015-09-04 15:44:53 -04:00
Steven Edwards
5e7426d6f5 Add parseName, Name, and Style funcs. 
Also includes decodeUTF16 func, which is used by parseName.
 2015-09-04 15:44:53 -04:00
Nigel Tao
41fa49aa5b Update x/exp/shiny/font to x/image/font. 2015-09-01 15:49:46 +10:00
Nigel Tao
494079eb2b Cache the glyph index lookup. 
benchmark                 old ns/op     new ns/op     delta
BenchmarkDrawString-8     8618239       8149527       -5.44%
 2015-08-31 14:14:50 +10:00
Nigel Tao
03bdcc0fe1 Have face.Glyph return an advance width, not the new dot. 
This tracks an upstream change in the x/exp/shiny/font package.
 2015-08-31 11:34:42 +10:00
Nigel Tao
8a4428169d Make raster.Painter's max alpha 1<<16-1, not 1<<32-1. 
This is more consistent with the standard library's image/color package.

The benchmarks didn't seem to change significantly.
 2015-08-30 23:48:43 +10:00
Nigel Tao
3ba1c0f728 Rename Point and End slices to Points and Ends. 
The slice Foos is plural; it refers to multiple elements. The element Foos[i]
is the i'th Foo.
 2015-08-30 22:27:18 +10:00
Nigel Tao
3cc748686b Use fixed.Rectangle26_6 instead of truetype.Bounds. 
The previous "the endpoints are inclusive" comment seems confusing. It's true
that the bounding box's max X equals the right-most coordinate, which suggests
<= instead of <, but that node's coordinate is itself exclusive. Consider the
solid 1-pixel square: (0, 0), (64, 0), (64, 64), (0, 64) in fixed.Point26_6
coordinates. The right-most coordinate is 64, and the bounding box's max X
equals 64, but rasterizing that square only affects sub-pixels up to but not
including 64.

Instead, it seems accurate to follow the fixed.Rectangle26_6 description, in
that the max values are exclusive.
 2015-08-30 22:06:37 +10:00
Nigel Tao
7a598da6de Delete the truetype.NewGlyphBuf function. 
The zero value of a GlyphBuf is already perfectly usable.
 2015-08-30 21:35:58 +10:00
Nigel Tao
fe26067669 Cache glyph mask images. 
benchmark                 old ns/op     new ns/op     delta
BenchmarkDrawString-4     88103151      14188817      -83.90%
 2015-08-27 22:16:16 +10:00
Nigel Tao
62e59645ee Quantize sub-pixel glyph rendering. 
This is in anticipation of caching glyph images. Quantization means that cache
hits are more likely.

Also make NewFace take an *Options instead of an Options.
 2015-08-25 22:34:31 +10:00
Nigel Tao
a021a5f23e Rename Kerning to Kern. 2015-08-24 16:17:16 +10:00
Nigel Tao
db77c6a161 Delete some unnecessary fixed.Int26_6 conversions. 2015-08-24 15:57:20 +10:00
Nigel Tao
24265d1c91 Implement GlyphBounds and GlyphAdvance. 2015-08-24 15:51:50 +10:00
Nigel Tao
9c46b87503 Make face.Glyph not allocate a new mask each time. 
benchmark                 old ns/op     new ns/op     delta
BenchmarkDrawString-4     96914389      88683659      -8.49%

benchmark                 old allocs     new allocs     delta
BenchmarkDrawString-4     32287          0              -100.00%

benchmark                 old bytes     new bytes     delta
BenchmarkDrawString-4     1929619       156           -99.99%
 2015-08-23 21:11:02 +10:00
Nigel Tao
2d84b72ff6 Add a DrawString benchmark. 2015-08-23 20:45:19 +10:00
Nigel Tao
6deea24143 Add a truetype.Face type. 
Its implementation is mostly a copy/paste of the freetype.Context type.
Follow-up commits will make it more efficient.

Also add an example that uses a truetype.Face and the
golang.org/x/exp/shiny/font package to draw text.
 2015-08-22 14:46:12 +10:00
Nigel Tao
f42630ca7a Use the common golang.org/x/exp/shiny/font.Hinting type. 2015-08-20 16:07:51 +10:00
Nigel Tao
7e2154db58 Delete the f26dot6 type in favor of fixed.Int26_6. 2015-08-18 16:47:46 +10:00
Nigel Tao
43fc220ebd Make f26dot6 methods prefix, not infix. 
This is in anticipation of removing the f26dot6 type entirely. Instead,
we will use the fixed.Int26_6 type from golang.org/x/image/math/fixed.
 2015-08-18 16:36:59 +10:00
Nigel Tao
e8121e3c7d Don't use backtick quotes in the comments. 2015-08-18 16:33:14 +10:00
Nigel Tao
2a5cbfd47e Use the fixed.Int26_6 type in package truetype. 2015-08-18 16:30:37 +10:00
Nigel Tao
5193f9f147 Add canonical import paths. 2015-08-12 14:34:19 +10:00
Nigel Tao
d1c460896e Fix testdata paths after moving files up one level. 2015-08-12 14:32:40 +10:00
Nigel Tao
bf25f8ce0e Move files up one level. 2015-08-12 14:30:01 +10:00