| commit | 0ff817254b04da935cce10d2d1270ccf047fbbd7 | [log] [tgz] |
|---|---|---|
| author | Elias Naur <elias.naur@gmail.com> | Tue Sep 04 11:22:49 2018 +0200 |
| committer | Elias Naur <elias.naur@gmail.com> | Fri Sep 07 22:41:11 2018 +0000 |
| tree | 334415ea3cf7882501ab9d30fb188f5d136f027c | |
| parent | fe88d2776746c733e1628c7ac9d9add9c9a280ed [diff] |
gl: add internalFormat to TexImage2D
The OpenGL C function glTexImage2D has the following signature:
void glTexImage2D(GLenum target,
GLint level,
GLint internalFormat,
GLsizei width,
GLsizei height,
GLint border,
GLenum format,
GLenum type,
const GLvoid * data);
However, the corresponding Context.TexImage2D method in package gl
does not include the internalFormat parameter, and use the format
argument instead. That's ok for many texture formats; for example,
RGBA textures have both format and internalFormat set to GL_RGBA.
But not always. In particular, OpenGL ES 3 allows the use of sRGB
encoded textures by specifying GL_SRGB8_ALPHA8 as internalFormat,
but keeping GL_RGBA as format.
Add the internalFormat to the Context package. This is unfortunately
a breaking change, but adding a new function ("glTexImage2D2"?) to
Context is too ugly for a parameter that should have been there all
along. (Adding a new method to the Context interface is technically
also a breaking change, but I don't expect that there are any
external implementers of the interface).
Change-Id: I12a45a34f604e51cb1be26aed906025ccfac533a
Reviewed-on: https://go-review.googlesource.com/133155
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
The Go mobile repository holds packages and build tools for using Go on mobile platforms.
Package documentation as a starting point:
The Go Mobile project is experimental. Use this at your own risk. While we are working hard to improve it, neither Google nor the Go team can provide end-user support.
This is early work and installing the build system requires Go 1.5. Follow the instructions on golang.org/wiki/Mobile to install the gomobile command, build the basic and the bind example apps.
Contributions to Go are appreciated. See https://golang.org/doc/contribute.html.