1 files changed, 59 insertions, 0 deletions
diff --git a/source/blender/draw/intern/draw_instance_data.h b/source/blender/draw/intern/draw_instance_data.h
new file mode 100644
index 00000000000..174f03e3bc7
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+++ b/source/blender/draw/intern/draw_instance_data.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2016, 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.
+ *
+ * Contributor(s): Blender Institute
+ *
+ */
+
+/** \file draw_instance_data.h
+ *  \ingroup draw
+ */
+
+#ifndef __DRAW_INSTANCE_DATA_H__
+#define __DRAW_INSTANCE_DATA_H__
+
+#include "BLI_compiler_attrs.h"
+#include "BLI_sys_types.h"
+
+#include "GPU_batch.h"
+
+#define MAX_INSTANCE_DATA_SIZE 64 /* Can be adjusted for more */
+
+typedef struct DRWInstanceData DRWInstanceData;
+typedef struct DRWInstanceDataList DRWInstanceDataList;
+
+struct DRWShadingGroup;
+
+void *DRW_instance_data_next(DRWInstanceData *idata);
+DRWInstanceData *DRW_instance_data_request(
+        DRWInstanceDataList *idatalist, uint attrib_size);
+
+void DRW_batching_buffer_request(
+        DRWInstanceDataList *idatalist, GPUVertFormat *format, GPUPrimType type, struct DRWShadingGroup *shgroup,
+        GPUBatch **r_batch, GPUVertBuf **r_vert);
+void DRW_instancing_buffer_request(
+        DRWInstanceDataList *idatalist, GPUVertFormat *format, GPUBatch *instance, struct DRWShadingGroup *shgroup,
+        GPUBatch **r_batch, GPUVertBuf **r_vert);
+
+/* Upload all instance data to the GPU as soon as possible. */
+void DRW_instance_buffer_finish(DRWInstanceDataList *idatalist);
+
+void DRW_instance_data_list_reset(DRWInstanceDataList *idatalist);
+void DRW_instance_data_list_free_unused(DRWInstanceDataList *idatalist);
+void DRW_instance_data_list_resize(DRWInstanceDataList *idatalist);
+
+#endif /* __DRAW_INSTANCE_DATA_H__ */