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egl: Add eglQueryDisplayAttribEXT() helper

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To be used to fetch the EGLDevice used for an EGL display.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1959>
This commit is contained in:
Jonas Ådahl 2021-08-04 09:59:50 +02:00 committed by Marge Bot
parent 3de1696c59
commit 7ce481bf69
2 changed files with 29 additions and 0 deletions
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23
src/backends/meta-egl.c
View File

@ -72,6 +72,8 @@ struct _MetaEgl
PFNEGLQUERYDMABUFFORMATSEXTPROC eglQueryDmaBufFormatsEXT;
PFNEGLQUERYDMABUFMODIFIERSEXTPROC eglQueryDmaBufModifiersEXT;
PFNEGLQUERYDISPLAYATTRIBEXTPROC eglQueryDisplayAttribEXT;
};
G_DEFINE_TYPE (MetaEgl, meta_egl, G_TYPE_OBJECT)
@ -1097,6 +1099,25 @@ meta_egl_query_dma_buf_modifiers (MetaEgl *egl,
return TRUE;
}
gboolean
meta_egl_query_display_attrib (MetaEgl *egl,
EGLDisplay display,
EGLint attribute,
EGLAttrib *value,
GError **error)
{
if (!is_egl_proc_valid (egl->eglQueryDisplayAttribEXT, error))
return FALSE;
if (!egl->eglQueryDisplayAttribEXT (display, attribute, value))
{
set_egl_error (error);
return FALSE;
}
return TRUE;
}
#define GET_EGL_PROC_ADDR(proc) \
egl->proc = (void *) eglGetProcAddress (#proc);
@ -1136,6 +1157,8 @@ meta_egl_constructed (GObject *object)
GET_EGL_PROC_ADDR (eglQueryDmaBufFormatsEXT);
GET_EGL_PROC_ADDR (eglQueryDmaBufModifiersEXT);
GET_EGL_PROC_ADDR (eglQueryDisplayAttribEXT);
}
#undef GET_EGL_PROC_ADDR

6
src/backends/meta-egl.h
View File

@ -269,4 +269,10 @@ gboolean meta_egl_query_dma_buf_modifiers (MetaEgl *egl,
EGLint *num_formats,
GError **error);
gboolean meta_egl_query_display_attrib (MetaEgl *egl,
EGLDisplay display,
EGLint attribute,
EGLAttrib *value,
GError **error);
#endif /* META_EGL_H */