1 files changed, 41 insertions, 0 deletions
diff --git a/opengl/libs/EGL/egl_display.cpp b/opengl/libs/EGL/egl_display.cpp
index 53eaf9a..5cf5236 100644
--- a/opengl/libs/EGL/egl_display.cpp
+++ b/opengl/libs/EGL/egl_display.cpp
@@ -342,6 +342,47 @@ EGLBoolean egl_display_t::terminate() {
     return res;
 }
 
+void egl_display_t::loseCurrent(egl_context_t * cur_c)
+{
+    if (cur_c) {
+        egl_surface_t * cur_r = get_surface(cur_c->read);
+        egl_surface_t * cur_d = get_surface(cur_c->draw);
+
+        // by construction, these are either 0 or valid (possibly terminated)
+        // it should be impossible for these to be invalid
+        ContextRef _cur_c(cur_c);
+        SurfaceRef _cur_r(cur_r);
+        SurfaceRef _cur_d(cur_d);
+
+        cur_c->onLooseCurrent();
+
+        _cur_c.release();
+        _cur_r.release();
+        _cur_d.release();
+    }
+}
+
+EGLBoolean egl_display_t::makeCurrent(egl_context_t* c, egl_context_t* cur_c,
+        EGLSurface draw, EGLSurface read, EGLContext ctx,
+        EGLSurface impl_draw, EGLSurface impl_read, EGLContext impl_ctx)
+{
+    Mutex::Autolock _l(lock);
+    EGLBoolean result;
+    if (c) {
+        result = c->cnx->egl.eglMakeCurrent(
+                disp[c->impl].dpy, impl_draw, impl_read, impl_ctx);
+    } else {
+        result = cur_c->cnx->egl.eglMakeCurrent(
+                disp[cur_c->impl].dpy, impl_draw, impl_read, impl_ctx);
+    }
+    if (result == EGL_TRUE) {
+        loseCurrent(cur_c);
+        if (c) {
+            c->onMakeCurrent(draw, read);
+        }
+    }
+    return result;
+}
 
 // ----------------------------------------------------------------------------
 }; // namespace android