gallium,clover: add OpenCL interoperability support for CL events

v2: - move interop.cpp to clover/api
    - change intptr_t to void* in the interface
    - add a virtual function fence() to simplify some code

v3: - use bool in the interface
v4: - enclose the last two interop functions in try..catch

Reviewed-by: Francisco Jerez <[email protected]>

1 files changed, 40 insertions, 0 deletions

diff --git a/src/gallium/include/state_tracker/opencl_interop.h b/src/gallium/include/state_tracker/opencl_interop.h
new file mode 100644
index 00000000000..498364472b6
--- /dev/null
+++ b/src/gallium/include/state_tracker/opencl_interop.h
@@ -0,0 +1,40 @@
+/**************************************************************************
+ *
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ **************************************************************************/
+
+#ifndef OPENCL_INTEROP_H
+#define OPENCL_INTEROP_H
+
+/* dlsym these without the "_t" suffix. You should get the correct symbols
+ * if the OpenCL driver is loaded.
+ */
+
+typedef bool (*opencl_dri_event_add_ref_t)(void *cl_event);
+typedef bool (*opencl_dri_event_release_t)(void *cl_event);
+typedef bool (*opencl_dri_event_wait_t)(void *cl_event, uint64_t timeout);
+typedef struct pipe_fence_handle *(*opencl_dri_event_get_fence_t)(void *cl_event);
+
+#endif /* OPENCL_INTEROP_H */