Commit graph

9 commits

Author SHA1 Message Date
Matthew Waters
d3f3787d64 glsl: fixup external-oes shaders by mangling the required extension
Newer devices require using a different GLSL extension for accessing
external-oes textures in a shader using the texture() functions.

While the GL_OES_EGL_image_external_essl3 should supposedly be supported
on a any GLES3 android device, the extension was defined after a lot of the
older drivers were built so they will not know about it.  Thus there are two
possible interpretations of which of texture[2D]() should be supported for
external-oes textures.  Strict adherence to the GL_OES_EGL_image_external
extension spec which uses texture2D() or following GLES3's pattern, also
allowing texture() as a function for accessing external-oes textures

This adds another mangling pass to convert
 #extension GL_OES_EGL_image_external : ...
into
 #extension GL_OES_EGL_image_external_essl3 : ...
on GLES3 and when the GL_OES_EGL_image_external_essl3 extension is supported.

Only uses texture() when the GLES3 and the GL_OES_EGL_image_external_essl3
extension is supported for external-oes textures.
Uses GLES2 + texture2D() + GL_OES_EGL_image_external in all other external-oes
cases.

https://bugzilla.gnome.org/show_bug.cgi?id=766993
2016-06-21 21:27:47 +10:00
Matthew Waters
861ce43cd8 glsl: add some debugging 2016-06-15 18:10:59 +10:00
Sebastian Dröge
b9cfa34118 glviewconvert: Port more things to GLES/GL 3 compatibility
And move the shader mangling code into a single place instead of having a copy
in glcolorconvert and glviewconvert.

https://bugzilla.gnome.org/show_bug.cgi?id=765266
2016-04-27 11:47:20 +03:00
Matthew Waters
23806d4953 gl: misc docs fixes/additions 2016-03-06 19:36:17 +11:00
Vineeth TM
6eae0c7e18 glsl: fix possible string overrun in gst_glsl_version_profile_from_string
given a NULL-terminated string, s.
s[i] = '\0';
i++;
does not guarentee that s[i] is NULL terminated and thus string operations
could read off the end of the array.

https://bugzilla.gnome.org/show_bug.cgi?id=758039
2015-11-13 17:00:46 +11:00
Vineeth TM
4c9ac5e474 glsl: free str while returning error
https://bugzilla.gnome.org/show_bug.cgi?id=758039
2015-11-13 17:00:46 +11:00
Matthew Waters
776ccf87b5 glsl: fix check for glsl version against GL context inversion
Any GLSL version that was less than the provided GL version would fail
2015-11-10 22:47:42 +11:00
Matthew Waters
3dfc6899ad gl: be consistent in gobject boilerpate
GST_GL_IS_* vs GST_IS_GL_*

git grep -l 'GST_GL_IS_' | xargs sed -i 's/GST_GL_IS_/GST_IS_GL_/g'
2015-10-19 15:15:30 +11:00
Matthew Waters
2e8642cc4c gl: add some GLSL utility functions
Specifically parsing/setting GLSL versions and the shader related
function table.
2015-10-15 21:27:57 +11:00