Commit graph

18 commits

Author SHA1 Message Date
Philippe Normand
8d122f21ad gl: New pushsrc-based glbasesrc base class
The gltestsrc element was refactored to inherit from this base class which
handles the GL context. The sub-class only needs to implement the gl_start,
gl_stop and fill_gl_memory vfuncs, along with properly advertizing the GL APIs
it supports through the supported_gl_api GstGLBaseSrc class attribute.
2019-08-20 09:51:05 +01:00
Matthew Waters
675415bf2e gl: try to use highp precision where supported
The use of mediump as a specifier in GLSL shaders will have limited
resolution and when used as texture coordinates may become inaccurate
over texture sizes of 1024.
2019-02-28 17:26:32 +11:00
Sebastian Dröge
acc098a736 gl: Only unbind buffers/vertex attrib arrays if we can't directly bind the vertex array to 0
Binding the vertex array to 0 will unbind everything else already.

In the previous order older versions of the Intel GL driver caused
errors to be printed for every single call when disabling the vertex
attrib arrays after binding the vertex array to 0.
2019-01-16 14:09:18 +02:00
Julien Isorce
4952fdd956 gl: do not include GL headers in public gstgl headers
Except for gst/gl/gstglfuncs.h

It is up to the client app to include these headers.
It is coherent with the fact that gstreamer-gl.pc does not
require any egl.pc/gles.pc. I.e. it is the responsability
of the app to search these headers within its build setup.

For example gstreamer-vaapi includes explicitly EGL/egl.h
and search for it in its configure.ac.

For example with this patch, if an app includes the headers
  gst/gl/egl/gstglcontext_egl.h
  gst/gl/egl/gstgldisplay_egl.h
  gst/gl/egl/gstglmemoryegl.h
it will *no longer* automatically include EGL/egl.h and GLES2/gl2.h.
Which is good because the app might want to use the gstgl api only
without the need to bother about gl headers.

Also added a test: cd tests/check && make libs/gstglheaders.check

https://bugzilla.gnome.org/show_bug.cgi?id=784779
2017-12-09 19:32:29 +00:00
Matthew Waters
61ee2685c0 gl: GL_ARRAY_BUFFER is not a part of VAO state
As a result we need to bind it on every draw in order to have the
correct state in the GL state machine.
2017-12-09 19:32:27 +00:00
Sebastian Dröge
aeb5d4edaf gst: Don't declare variables inside the for loop header
This is a C99 feature.
2017-12-09 19:32:25 +00:00
Guillaume Desmottes
a12ce7a150 gltestsrc: fix shaders ref counting
The gltestsrc element uses two shaders: color_shader and snow_shader.
Those are alternatively assigned to the SrcShader->shader pointer and
their reference was transferred to it. Only the SrcShader->shader was
unreffed (in _src_shader_deinit()) so only one shader was properly
freed, the other one was leaked.

Fixed this by giving an extra ref to SrcShader->shader and unreffing the
2 shaders in _src_smpte_free().

https://bugzilla.gnome.org/show_bug.cgi?id=766661
2017-12-09 19:32:20 +00:00
Matthew Waters
cdcd234613 gltestsrc: port to gles2/gl3
This makes gltestsrc work everywhere \o/

- workaround RPi returning invalid values for positive coords in the
  checker shader
- reduce the number of iterations in the mandelbrot shader for gles2

https://bugzilla.gnome.org/show_bug.cgi?id=751540
2017-12-09 19:32:18 +00:00
Matthew Waters
55eaa869ea gltestsrc: port smpte pattern to shaders
Loosely based on patch by
Lubosz Sarnecki <lubosz.sarnecki@collabora.co.uk>

https://bugzilla.gnome.org/show_bug.cgi?id=751540
2017-12-09 19:32:18 +00:00
Matthew Waters
b7ab7aa349 gltestsrc: implement the circular method
https://bugzilla.gnome.org/show_bug.cgi?id=759801
2017-12-09 19:32:18 +00:00
Matthew Waters
309005b12d gltestsrc: add a generic src framework
Any unsupported pattern (circular) results in an error
2017-12-09 19:32:18 +00:00
Matthew Waters
72993f54fa gl: remove useless gl{En,Dis}able (GL_TEXTURE_*) calls
We are using shaders everywhere and so they are not needed
2017-12-09 19:32:01 +00:00
Matthew Waters
15fd4e164a glshader: attribute locations are -1 on error 2017-12-09 19:31:57 +00:00
Wang Xin-yu (王昕宇)
924e017bda gltestsrc: implement checkers pattern with GLSL
https://bugzilla.gnome.org/show_bug.cgi?id=737505
2017-12-09 19:31:48 +00:00
Matthew Waters
aeb60d850d Revert accidental push: "gltestsrc: implement checkers pattern with GLSL"
This reverts commit eae09179f0.
2017-12-09 19:31:47 +00:00
Wang Xin-yu (王昕宇)
14f297b61c gltestsrc: implement checkers pattern with GLSL 2017-12-09 19:31:47 +00:00
Lubosz Sarnecki
67732e4883 gltestsrc: implement snow pattern with GLSL.
https://bugzilla.gnome.org/show_bug.cgi?id=735131
2017-12-09 19:31:46 +00:00
Matthew Waters
a884d6feee move gl elements to ext subdirectory 2017-12-09 19:31:34 +00:00