[vlc-devel] [RFC PATCH 5/8] vlc_opengl: add vlc_gl_GetEglContexts

[Thomas Guillem]

This function will return the current EGLDisplay and EGLContext (if egl is
used).
---
 include/vlc_opengl.h              |  7 +++++++
 modules/video_output/opengl/egl.c | 11 +++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/vlc_opengl.h b/include/vlc_opengl.h
index 4e79753b61..abef71ed96 100644
--- a/include/vlc_opengl.h
+++ b/include/vlc_opengl.h
@@ -51,6 +51,7 @@ struct vlc_gl_t
     void (*swap)(vlc_gl_t *);
     void*(*getProcAddress)(vlc_gl_t *, const char *);
     int  (*getNativeDpy)(vlc_gl_t *, void **nativedpy);
+    int  (*getEglContexts)(vlc_gl_t *, void **egldpy, void **eglctx);
 };
 
 enum {
@@ -92,6 +93,12 @@ static inline int vlc_gl_GetNativeDpy(vlc_gl_t *gl, void **nativedpy)
     return gl->getNativeDpy ? gl->getNativeDpy(gl, nativedpy) : -1;
 }
 
+static inline int vlc_gl_GetEglContexts(vlc_gl_t *gl, void **egldpy,
+                                        void **eglctx)
+{
+    return gl->getEglContexts ? gl->getEglContexts(gl, egldpy, eglctx) : -1;
+}
+
 VLC_API vlc_gl_t *vlc_gl_surface_Create(vlc_object_t *,
                                         const struct vout_window_cfg_t *,
                                         struct vout_window_t **) VLC_USED;
diff --git a/modules/video_output/opengl/egl.c b/modules/video_output/opengl/egl.c
index cc9c76d389..66cc210d36 100644
--- a/modules/video_output/opengl/egl.c
+++ b/modules/video_output/opengl/egl.c
@@ -117,6 +117,16 @@ static int GetNativeDpy(vlc_gl_t *gl, void **nativedpy)
     return *nativedpy != NULL ? 0 : -1;
 }
 
+static int GetEglContexts(vlc_gl_t *gl, void **egldpy, void **eglctx)
+{
+    vlc_gl_sys_t *sys = gl->sys;
+
+    assert(sys->display && sys->context);
+    *egldpy = sys->display;
+    *eglctx = sys->context;
+    return 0;
+}
+
 static bool CheckToken(const char *haystack, const char *needle)
 {
     size_t len = strlen(needle);
@@ -386,6 +396,7 @@ static int Open (vlc_object_t *obj, const struct gl_api *api)
     gl->swap = SwapBuffers;
     gl->getProcAddress = GetSymbol;
     gl->getNativeDpy = GetNativeDpy;
+    gl->getEglContexts = GetEglContexts;
     return VLC_SUCCESS;
 
 error:
-- 
2.11.0