1 files changed, 83 insertions, 0 deletions
diff --git a/intern/opensubdiv/opensubdiv_utils_capi.cc b/intern/opensubdiv/opensubdiv_utils_capi.cc
new file mode 100644
index 00000000000..5a2d017ed26
--- /dev/null
+++ b/intern/opensubdiv/opensubdiv_utils_capi.cc
@@ -0,0 +1,83 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2013 Blender Foundation.
+ * All rights reserved.
+ *
+ * Contributor(s): Sergey Sharybin.
+ *                 Brecht van Lommel
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include "opensubdiv_capi.h"
+
+#include <GL/glew.h>
+
+#ifdef _MSC_VER
+#  include "iso646.h"
+#endif
+
+#ifdef OPENSUBDIV_HAS_OPENCL
+#  include "opensubdiv_device_context_opencl.h"
+#endif  /* OPENSUBDIV_HAS_OPENCL */
+
+#ifdef OPENSUBDIV_HAS_CUDA
+#  include "opensubdiv_device_context_cuda.h"
+#endif  /* OPENSUBDIV_HAS_CUDA */
+
+int openSubdiv_getAvailableEvaluators(void)
+{
+	if (!openSubdiv_supportGPUDisplay()) {
+		return 0;
+	}
+
+	int flags = OPENSUBDIV_EVALUATOR_CPU;
+
+#ifdef OPENSUBDIV_HAS_OPENMP
+	flags |= OPENSUBDIV_EVALUATOR_OPENMP;
+#endif  /* OPENSUBDIV_HAS_OPENMP */
+
+#ifdef OPENSUBDIV_HAS_OPENCL
+	if (CLDeviceContext::HAS_CL_VERSION_1_1()) {
+		flags |= OPENSUBDIV_EVALUATOR_OPENCL;
+	}
+#endif  /* OPENSUBDIV_HAS_OPENCL */
+
+#ifdef OPENSUBDIV_HAS_CUDA
+	if (CudaDeviceContext::HAS_CUDA_VERSION_4_0()) {
+		flags |= OPENSUBDIV_EVALUATOR_CUDA;
+	}
+#endif  /* OPENSUBDIV_HAS_OPENCL */
+
+#ifdef OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK
+	if (GLEW_ARB_texture_buffer_object) {
+		flags |= OPENSUBDIV_EVALUATOR_GLSL_TRANSFORM_FEEDBACK;
+	}
+#endif  /* OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK */
+
+#ifdef OPENSUBDIV_HAS_GLSL_COMPUTE
+	flags |= OPENSUBDIV_EVALUATOR_GLSL_COMPUTE;
+#endif  /* OPENSUBDIV_HAS_GLSL_COMPUTE */
+
+	return flags;
+}
+
+void openSubdiv_cleanup(void)
+{
+	openSubdiv_osdGLDisplayDeinit();
+}