All GL function calls fill out a C.struct_fnargs and drop it on the
work queue. The Start function drains the work queue and hands
over a batch of calls to C.process which runs them. This allows
multiple GL calls to be executed in a single cgo call.
A GL call is marked as blocking if it returns a value, or if it
takes a Go pointer. In this case the call will not return until
C.process sends a value on the retvalue channel.
Change-Id: I4c76b2a8ad55f57b0c98d200d0fb708d4634e042
Reviewed-on: https://go-review.googlesource.com/10452
Reviewed-by: Nigel Tao <nigeltao@golang.org>
They don't make sense for other platforms yet.
See golang/go#9603
Change-Id: I2ed269a00b1e1961aadf0a47fc95bbe3cd230113
Reviewed-on: https://go-review.googlesource.com/2902
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Also rename some files:
types.go -> types_prod.go
typesdebug.go -> types_debug.go
(new file) types_common.go
In discussing https://golang.org/cl/144480043/ crawshaw said:
The third argument to glUniformMatrix* is "transpose." According to the
linked documentation, which is usually better:
"If transpose is GL_FALSE, each matrix is assumed to be supplied in
column major order. If transpose is GL_TRUE, each matrix is assumed to
be supplied in row major order."
However, the documentation for OpenGL ES 2 doesn't bother even telling
you, it just says that this parameter must always be set to GL_FALSE. So
it's not supported on most Android devices. (Sadly the older
documentation appears to have been discontinued.)
So yes, GL seems to default to column-major, and the older GLES2 I'm
targeting left the transpose argument in but doesn't support it. Hence
I'm not exposing it through this API.
LGTM=crawshaw
R=crawshaw
CC=golang-codereviews
https://golang.org/cl/148690043
David Crawshaw
Hyang-Ah Hana Kim
David Crawshaw
Nigel Tao