Add support for OpenGL ES by conditionally compiling wrapper for eglSwapBuffers

[fips] / eglwrap.c

diff --git a/eglwrap.c b/eglwrap.c
new file mode 100644 (file)
index 0000000..aaa8cb7
--- /dev/null
+++ b/eglwrap.c
@@ -0,0 +1,61 @@
+/* Copyright © 2013, Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "fips.h"
+
+#include <EGL/egl.h>
+
+#include "dlwrap.h"
+#include "metrics.h"
+
+static void *
+eglwrap_lookup (char *name)
+{
+       const char *libegl_filename = "libEGL.so.1";
+       static void *libegl_handle = NULL;
+
+       if (! libegl_handle) {
+               libegl_handle = dlwrap_real_dlopen (libegl_filename, RTLD_NOW | RTLD_DEEPBIND);
+               if (! libegl_handle) {
+                       fprintf (stderr, "Error: Failed to dlopen %s\n",
+                                libegl_filename);
+                       exit (1);
+               }
+       }
+
+       return dlwrap_real_dlsym (libegl_handle, name);
+}
+
+EGLBoolean
+eglSwapBuffers (EGLDisplay dpy, EGLSurface surface)
+{
+       EGLBoolean ret;
+       static typeof(&eglSwapBuffers) real_eglSwapBuffers;
+
+       if (! real_eglSwapBuffers)
+               real_eglSwapBuffers = eglwrap_lookup ("eglSwapBuffers");
+
+       ret = real_eglSwapBuffers (dpy, surface);
+
+       metrics_end_frame ();
+
+       return ret;
+}