Cycles: multi GPU rendering support.

The rendering device is now set in User Preferences > System, where you can
choose between OpenCL/CUDA and devices. Per scene you can then still choose
to use CPU or GPU rendering.

Load balancing still needs to be improved, now it just splits the entire
render in two, that will be done in a separate commit.

1 files changed, 46 insertions, 0 deletions

diff --git a/intern/cycles/blender/CCL_api.h b/intern/cycles/blender/CCL_api.h
new file mode 100644
index 00000000000..469d63d1530
--- /dev/null
+++ b/intern/cycles/blender/CCL_api.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * 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.
+ */
+
+#ifndef CCL_API_H
+#define CCL_API_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* returns a list of devices for selection, array is name NULL pointer
+ * terminated and must not be freed */
+
+typedef struct CCLDeviceInfo {
+	const char *identifier;
+	const char *name;
+	int value;
+} CCLDeviceInfo;
+
+CCLDeviceInfo *CCL_compute_device_list(int opencl);
+
+/* create python module _cycles used by addon */
+
+void *CCL_python_module_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CCL_API_H */
+