experiment/fiddle

experimental/fiddle/OSMesaContextHolder.cpp

Index: experimental/fiddle/OSMesaContextHolder.cpp
diff --git a/experimental/fiddle/OSMesaContextHolder.cpp b/experimental/fiddle/OSMesaContextHolder.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..9b2c73de487ffd715f465a98a0c01f9d33636a3a
--- /dev/null
+++ b/experimental/fiddle/OSMesaContextHolder.cpp
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include <GL/osmesa.h>
+
+#include "OSMesaContextHolder.h"
+
+OSMesaContextHolder::OSMesaContextHolder() {
+    fOSMesaContext = OSMesaCreateContextExt(0x1, 0, 0, 0, nullptr);
+    if (!fOSMesaContext) {
+        fputs("Unable to get OSMesa context.\n", stderr);
+    } else {
+        static uint32_t buffer[16 * 16];
+        OSMesaMakeCurrent(fOSMesaContext, &buffer, 0x1401, 16, 16);
+    }
+}
+
+OSMesaContextHolder::~OSMesaContextHolder() {
+    if (fOSMesaContext) {
+        OSMesaDestroyContext(fOSMesaContext);
+    }
+}
+