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7 Commits

Author SHA1 Message Date
Nigel Tao 2457abfa93 go.mobile/f32: add a f32.Bytes function. 
LGTM=crawshaw
R=crawshaw
CC=golang-codereviews
https://golang.org/cl/166720044
 2014-10-29 09:19:38 +11:00
Nigel Tao ee31300452 go.mobile/f32: sin/cos look-up tables. 
benchmark        old ns/op     new ns/op     delta
BenchmarkSin     98156         32725         -66.66%

LGTM=crawshaw, minux
R=crawshaw, minux
CC=golang-codereviews
https://golang.org/cl/156590043
 2014-10-28 11:19:13 +11:00
Nigel Tao 6d01e6fdd5 go.mobile/f32: add Scale, Translate and Rotate methods to Affine. 
Also make Mat4 methods consistent with Affine's methods.

LGTM=crawshaw
R=crawshaw
CC=golang-codereviews
https://golang.org/cl/156000043
 2014-10-09 13:48:17 +11:00
Nigel Tao 925df10ad0 go.mobile/f32: make matrix multiplication work even if the dst matrix 
is the same as an arg matrix.

LGTM=crawshaw
R=crawshaw
CC=golang-codereviews
https://golang.org/cl/152850043
 2014-10-03 14:33:15 +10:00
Nigel Tao d3df5eca0b go.mobile/f32: fix matrix multiply to be m0*m1 not m1*m0. 
Also fix String methods' receivers to be T, not *T, so that
var m f32.Mat32
s := fmt.Sprintf("m=%v", m)
works.

LGTM=crawshaw
R=crawshaw
CC=golang-codereviews
https://golang.org/cl/147490043
 2014-10-03 12:33:49 +10:00
Nigel Tao 52d35457e3 go.mobile/f32: add an Affine type. 
Also fix the f32_test.

LGTM=crawshaw
R=crawshaw
CC=golang-codereviews
https://golang.org/cl/149310043
 2014-10-03 09:25:48 +10:00
David Crawshaw 7384be2e72 go.mobile/f32: float32 math library 
I apologise for the poor state of this library.
I hope to improve it significantly soon. Right
now it exists to support example/gopher and the
debug library.

LGTM=nigeltao
R=nigeltao, bryanturley
CC=adg, davidday, golang-codereviews
https://golang.org/cl/141440043
 2014-09-17 18:11:21 -04:00