cf94cb9b43
freetype/truetype: update the golden tests for Ubuntu 14.04's version
...
of standard fonts like Deja Vu Sans Oblique.
LGTM=bsiegert
R=bsiegert
CC=golang-codereviews
https://codereview.appspot.com/164660043
2014-11-07 09:38:15 +11:00
49fa4a4de0
freetype: add a Hinting enum in the top-level freetype package, and
...
hide the Hinter implementation in the freetype/truetype package.
LGTM=bsiegert
R=bsiegert
CC=golang-codereviews
https://codereview.appspot.com/58940043
2014-02-01 14:12:48 +11:00
10cb3b4280
freetype/truetype: calculate advance widths correctly.
...
The logic is a little clunky, but as before, let's get it right first,
then get it clean once we have a full battery of tests.
R=bsiegert
CC=golang-codereviews
https://codereview.appspot.com/50910043
2014-01-14 09:58:07 +11:00
897255e610
freetype/truetype: fix bounding box calculation.
...
R=bsiegert
CC=golang-codereviews, remyoudompheng
https://codereview.appspot.com/39440045
2013-12-21 10:03:04 +11:00
9fd1f2aca9
freetype/truetype: add testdata for advance widths and bounding boxes.
...
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/40690045
2013-12-16 13:47:21 +11:00
f3eade8b5f
freetype/truetype: fix MD0/MD1 opcodes and f26dot6 multiplication
...
rounding.
Pass all the hinting tests. Hooray! Removing the hintingBrokenAt field
will be a follow-up CL.
R=bsiegert, remyoudompheng, jeremyjackins
CC=golang-dev
https://codereview.appspot.com/36880043
2013-12-05 09:09:03 +11:00
4c33bd09f5
freetype/truetype: implement SCFS, FLIPPT, FLIPRGON, FLIPRGOFF opcodes.
...
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/36300043
2013-12-04 10:04:19 +11:00
25cb1e119f
freetype/truetype: fix SHC opcode.
...
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/36220043
2013-12-03 10:57:02 +11:00
11bef13aa5
freetype/truetype: track phantom points across compound glyphs.
...
The very subtle pp1x versus phantomPoints[0].X distinction is pretty
ugly code, but let's get all the tests passing first, so that we can
refactor with confidence.
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/35850043
2013-12-03 08:21:05 +11:00
5cb0a99dcd
freetype/truetype: fix Super45 rounding.
...
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/34790045
2013-11-30 15:19:12 +11:00
1f97ea5d8e
freetype/truetype: apply the pp1x adjustment to the unhinted points
...
*before* hinting.
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/35070044
2013-11-29 22:12:55 +11:00
114d43ecfe
freetype/truetype: load vertical metrics from the OS/2 table.
...
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/34700043
2013-11-29 10:33:11 +11:00
1c0c5a1f9a
freetype/truetype: upgrade testdata to C Freetype 2.5.1.
...
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/33650044
2013-11-28 14:02:28 +11:00
02a88bab17
freetype/truetype: fix SHC, MIRP opcodes.
...
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/33750043
2013-11-27 20:09:54 +11:00
5a5d117404
freetype/truetype: normalize and set dual vector for SPVFS and SFVFS
...
opcodes. Calculate dot product with 32-bit math to match C Freetype's
rounding.
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/32740043
2013-11-27 17:48:57 +11:00
cce54f9bf8
freetype/truetype: fix order of 1st phantom point adjustment and
...
2nd / 4th phantom point rounding.
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/32040043
2013-11-26 20:06:51 +11:00
cef9ca89c7
freetype/truetype: implement ISECT, SHC, WCVTF, DELTAC and SDPVTL
...
opcodes.
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/29510043
2013-11-21 08:51:09 +11:00
f6106a9f8b
freetype/truetype: adjust ends slice when hinting a compound glyph.
...
Successfully hint all of DejaVu Sans Oblique, barring 4 exceptions
that are errors in the upstream C Freetype project. See
http://lists.nongnu.org/archive/html/freetype/2013-11/msg00004.html
for details.
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/21580044
2013-11-07 08:53:15 +11:00
cdaff3c716
freetype/truetype: run compound glyph hinting instructions.
...
Also add API for vertical metrics.
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/21330043
2013-11-05 09:58:40 +11:00
1f81822fe1
freetype/truetype: recalculate 'phantom point 1' after rounding.
...
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/19090043
2013-10-30 07:50:48 +11:00
e849ac9382
freetype: fix MDRP/MIRP Set-RP0 bit and fix normalize rounding.
...
Also make phantom point delta-X adjustment.
Also make print-glyph-points require Freetype version >= 2.5, which is
the latest version, at the time of writing.
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/18370043
2013-10-29 20:59:39 +11:00
ab80f5823d
freetype/truetype: implement SHP and DELTAP opcodes.
...
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/16500043
2013-10-25 20:07:33 +11:00
ab106efa01
freetype/truetype: implement SPVTL, SFVTL, SHZ, SHPIX opcodes.
...
Fix MIRP opcodes, scaled CVT initialization and Hinter.move.
R=bsiegert
CC=golang-dev, remyoudompheng
https://codereview.appspot.com/14930050
2013-10-24 10:47:50 +11:00
b821f16356
freetype/truetype: WCVTP, RCVT opcodes.
...
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14802046
2013-10-19 10:04:03 +11:00
bb775957cb
freetype/truetype: propagate the useMyMetrics flag to nested components.
...
Also increase the maximum recursion depth from 4 to 8, since some
x-deja-vu-sans-oblique glyphs are actually depth 4. It's an arbitrary
limit. The C Freetype code doesn't seem to limit recursion (below
whatever the font says it needs), but it seems safer to have a limit.
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14494062
2013-10-17 10:21:20 +11:00
8373bbf0e6
freetype/truetype: implement compound glyph transforms.
...
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14425064
2013-10-16 21:39:06 +11:00
c8094ec963
freetype/truetype: refactor glyph.go; match C Freetype's rounding on
...
one more test case.
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14691043
2013-10-16 18:54:54 +11:00
95f62386c3
freetype/truetype: enable the Times New Roman tests.
...
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14641043
2013-10-15 09:26:07 +11:00
30be3ed95b
freetype/truetype: speed up the testScaling test function.
...
"go test" drops from 5.203s to 0.474s.
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14566047
2013-10-13 15:43:34 +11:00
9e24a6204e
freetype/truetype: implement Font.Index binary search.
...
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14604044
2013-10-12 09:29:59 +11:00
0a778f7f02
freetype/truetype: parse UCS-4 encoded cmap tables.
...
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14548046
2013-10-11 07:29:40 +11:00
ba07cbfbc8
freetype/truetype: set the four phantom points, and adjust the glyph
...
points accordingly.
Yes, it's a mess, but let's pass the tests first, and then refactor.
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14419052
2013-10-10 07:43:32 +11:00
b76427be47
freetype: add script to create more hinting tests.
...
R=bsiegert, r
CC=golang-dev
https://codereview.appspot.com/14414044
2013-10-09 20:07:32 +11:00
b968fb0953
freeetype: move the test fonts from the luxi-fonts/ directory to
...
testdata/, in anticipation of having other test data.
R=dsymonds
CC=bsiegert, golang-dev
https://codereview.appspot.com/14361044
2013-10-04 17:03:59 +10:00
0ec7c0ecae
freetype/truetype: fix IUP rounding for negative numbers.
...
We now match Freetype C exactly for hinting luxisr.ttf. Yay.
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14336044
2013-10-04 08:30:53 +10:00
7e90529703
freetype/truetype: fix the SSW instruction to scale the single-width
...
value and the MDRP instruction's use of the single-width value.
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14273043
2013-10-03 21:32:43 +10:00
e88fe00bdb
freetype/truetype: fix hinting of compound glyphs.
...
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14117043
2013-10-01 18:08:52 +10:00
3490800cec
freetype/truetype: fix rounding for negative numbers to match the C
...
Freetype implementation.
The spec is the "Order of rounding operations" part of
https://developer.apple.com/fonts/TTRefMan/RM02/Chap2.html#rounding
but it wasn't exactly clear to me what "the negative round value
closest to zero" was: if the phase is 1/4, was that value -1/4 or
-3/4? Anyway, the Go code now follows the C code, and code trumps
documentation.
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/14092044
2013-09-29 18:30:55 +10:00
c661e372c6
freetype/truetype: implement IUP opcode.
...
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/13965043
2013-09-29 12:09:09 +10:00
75fff80b59
freetype/truetype: implement IP, MIAP, MIRP opcodes.
...
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/13855043
2013-09-24 22:06:47 +10:00
a3c53fdc3f
freetype/truetype: implement ALIGNRP, MDAP and MDRP opcodes.
...
We can now hint the .notdef glyph from luxisr.ttf. Yay.
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/12829048
2013-08-31 16:08:40 +10:00
a8a5cfeb78
freetype: respect the ROUND_XY_TO_GRID compound glyph flag.
...
Also add a test that freetype-go derives the same glyph points as
the C freetype implementation.
R=bsiegert
CC=golang-dev
https://codereview.appspot.com/12670046
2013-08-13 21:08:54 +10:00
28cc5fbc5d
freetype: move the scaling from FUnits to pixels from package freetype
...
to package truetype.
R=bsiegert
CC=golang-dev
http://codereview.appspot.com/6427062
2012-07-25 22:10:25 +10:00
6baa5f0a46
freetype: optimize []byte to uint16/uint32 conversions.
...
Thanks to Jeff R. Allen <jra@nella.org> for the conversation that
led to this change.
benchmark old ns/op new ns/op delta
BenchmarkDrawString 21168440 20143860 -4.84%
The number of mallocs per iteration is unchanged.
R=rsc, r
CC=golang-dev, jra
http://codereview.appspot.com/6304077
2012-06-16 12:19:07 +10:00
Nigel Tao