interesting
/
go-opengl-pixel
mirror of https://github.com/faiface/pixel.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
538 Commits 12 Branches 13 Tags 82 MiB
Commit Graph

538 Commits

Author SHA1 Message Date
Seebs c321515d3c Simplify Matrix math, use 6-value affine matrixes. 
It turns out that affine matrices are much simpler than the 3x3 matrices
they imply, and we can use this to dramatically streamline some code.
For a test program, this was about a 50% gain in frame rate just from
the cost of the applyMatrixAndMask calls in imdraw, which were calling
matrix.Project() many times. Simplifying matrix.Project, alone, got a
nearly 50% frame rate boost!

Also modify pixelgl's SetMatrix to copy the six values of a 3x2
Affine into the corresponding locations of a 3x3 matrix.
 2017-06-09 10:37:43 -05:00
Seebs 1586e600a0 The initializer is surprisingly expensive. 
Removing the call to Alpha(1) and replacing it with an inline definition
produces measurable improvements. Replacing each instance of ZV with
Vec{} further improves things. We keep an inline RGBA because there
are circumstances (mostly when using pictures) where we don't want to
have to set colors to get default behavior.

For a fairly triangle-heavy thing, this reduces time spent in SetLen
from something over 10% of execution time to around 2.5% of execution
time.
 2017-06-07 21:25:54 -05:00
faiface 9bd9df98f2 add text tutorial link to README 2017-05-30 02:53:24 +02:00
faiface 793d1e6a9a fix typo in doc 2017-05-28 18:50:56 +02:00
faiface f0c42c6e56 add Canvas.Frame method 2017-05-28 18:44:30 +02:00
faiface 28aad855b8 remove accidentaly set theme 2017-05-25 22:51:17 +02:00
Michal Štrba f179118d9e Set theme jekyll-theme-time-machine 2017-05-25 20:03:02 +02:00
faiface 4a0a68effc update drawing features in README 2017-05-24 20:39:11 +02:00
faiface 4dc0fb6f8b add text input mention to README 2017-05-24 14:42:00 +02:00
faiface bbde3a6109 add text drawing feature mention to README 2017-05-24 14:36:18 +02:00
faiface a056444410 fix link in README 2017-05-24 14:34:49 +02:00
faiface a5603e8379 replace xor screenshot with typewriter screenshot in README 2017-05-24 14:33:50 +02:00
faiface b8a287a654 clarify Rect doc 2017-05-21 19:38:21 +02:00
faiface ce8408054d fix typo in ToRGBA doc 2017-05-21 19:33:01 +02:00
faiface 523e6d3e9a fix Matrix doc 2017-05-21 19:30:29 +02:00
faiface fcfeb200b6 replace complex128 Vec with a struct 2017-05-21 19:25:06 +02:00
faiface 8221ab58bc remove Text.SetMatrix and Text.SetColorMask, add Text.Draw(target, matrix) and Text.DrawColorMask(target, matrix, mask) 2017-05-21 18:23:51 +02:00
faiface 9b7b8d5a0e minor change 2017-05-21 18:23:20 +02:00
faiface 85ef4290b8 update Sprite's doc 2017-05-21 15:31:07 +02:00
faiface 37cd58f0ae remove Text.Matrix() and Text.ColorMask() getters 2017-05-19 01:58:34 +02:00
faiface aa50147c35 change Text properties to fields 2017-05-18 23:59:42 +02:00
faiface 022f25895a change IMDraw properties to fields 2017-05-18 23:50:45 +02:00
faiface 6735475b44 change Sprite.Draw and Canvas.Draw signatures (include Matrix) 2017-05-17 23:45:22 +02:00
faiface fdddde2780 accept zero target size in Rect.Resized 2017-05-15 01:15:16 +02:00
faiface fb51cd9ecb improve Atlas creation time 2-3 times 2017-05-11 19:48:43 +02:00
faiface be2434cfa8 add Window.Repeat 2017-05-10 23:54:06 +02:00
faiface 9062f1eae9 fix and simplify input handling in Window 2017-05-10 21:22:47 +02:00
faiface c9319763d7 add Window.Typed 2017-05-10 21:10:10 +02:00
faiface 9554cd9c20 change text.New to take an Atlas 2017-05-10 17:56:09 +02:00
faiface ef86fe9b20 add text package doc 2017-05-09 16:48:26 +02:00
faiface 101637439e add Text.Matrix and Text.ColorMask 2017-05-09 16:46:11 +02:00
faiface b0e2bd1035 add examples on LineHeight and TabWidth to Text doc 2017-05-09 16:40:44 +02:00
faiface e1f364e5d1 add note about not destroying face.Face to Atlas doc 2017-05-09 16:39:03 +02:00
faiface ef5de4c8c3 mention control characters in Text doc 2017-05-09 16:36:59 +02:00
faiface ee6871c7b8 remove accidental markdown formating from Text doc 2017-05-09 16:35:51 +02:00
faiface fc8eafe3d5 fix typo in Text doc 2017-05-09 16:34:54 +02:00
faiface 81e2e645bd minor change in Text doc 2017-05-09 16:34:13 +02:00
faiface 067d9f48d9 minor change in Atlas doc 2017-05-09 16:32:29 +02:00
faiface 3035fcac9c clarify doc 2017-05-09 16:31:09 +02:00
faiface c5df68f8bb add Text doc 2017-05-09 16:27:55 +02:00
faiface c1f3267176 minor change 2017-05-09 15:26:50 +02:00
faiface e1dba0eb54 add Atlas doc 2017-05-09 15:25:08 +02:00
faiface e7a7ac4026 don't cache kerning in Atlas (too expensive and no benefit) 2017-05-09 15:10:35 +02:00
faiface 847b48292b improve Atlas creation, atlas is now square picture (was one row of characters) 2017-05-09 14:20:34 +02:00
faiface cfa9180bb7 fix PictureDataFromImage (wrong bounds when Min not (0, 0)) 2017-05-09 01:04:04 +02:00
faiface 6ce4094935 rename Text.LineHeight(scale) -> height, since now it's absolute height 2017-05-07 22:03:56 +02:00
faiface c0378a703e rename Glyph.Orig -> Dot 2017-05-07 21:49:26 +02:00
faiface b41a436dce minor change 2017-05-07 21:12:48 +02:00
faiface 68008f163a improve Text code 2017-05-07 21:08:10 +02:00
faiface 75d68a6963 add Text.BoundsOf 2017-05-07 21:00:19 +02:00