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wayland-buffer: Create EGLStream texture at buffer_realize time

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When dealing with synchronized subsurfaces, we defer buffer attachments
until the parent surface state is applied.

That causes interaction issues with EGLStream backed buffers, as the
client expects the compositor-side stream to be functional after it
requests a wl_surface::attach.

By allowing the compositor to realize buffers without attaching them, we
could resolve the issue above if we define a realized EGLStream buffer
as a functional EGLStream (EGLStream + attached consumer).

This change moves the texture consumer creation part from the attach
function to the realize one.

https://bugzilla.gnome.org/show_bug.cgi?id=782575
This commit is contained in:
Miguel A. Vico 2017-05-05 18:23:57 -07:00
parent 1bf2eb95b5
commit edd3634bb5
1 changed files with 10 additions and 12 deletions
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22
src/wayland/meta-wayland-buffer.c
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@ -129,8 +129,18 @@ meta_wayland_buffer_realize (MetaWaylandBuffer *buffer)
stream = meta_wayland_egl_stream_new (buffer, NULL);
if (stream)
{
CoglTexture2D *texture;
buffer->egl_stream.stream = stream;
buffer->type = META_WAYLAND_BUFFER_TYPE_EGL_STREAM;
texture = meta_wayland_egl_stream_create_texture (stream, NULL);
if (!texture)
return FALSE;
buffer->texture = COGL_TEXTURE (texture);
buffer->is_y_inverted = meta_wayland_egl_stream_is_y_inverted (stream);
return TRUE;
}
@ -320,18 +330,6 @@ egl_stream_buffer_attach (MetaWaylandBuffer *buffer,
g_assert (stream);
if (!buffer->texture)
{
CoglTexture2D *texture;
texture = meta_wayland_egl_stream_create_texture (stream, error);
if (!texture)
return FALSE;
buffer->texture = COGL_TEXTURE (texture);
buffer->is_y_inverted = meta_wayland_egl_stream_is_y_inverted (stream);
}
if (!meta_wayland_egl_stream_attach (stream, error))
return FALSE;