[Mesa-dev] [PATCH 07/10] st/vdpau: add new interop interface

[Christian König]

From: Christian König <christian.koenig at amd.com>

Use DMA-buf for the VDPAU interop interface instead of using
internal structures.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 src/gallium/include/state_tracker/vdpau_dmabuf.h  | 94 +++++++++++++++++++++++
 src/gallium/include/state_tracker/vdpau_interop.h |  7 +-
 2 files changed, 100 insertions(+), 1 deletion(-)
 create mode 100644 src/gallium/include/state_tracker/vdpau_dmabuf.h

diff --git a/src/gallium/include/state_tracker/vdpau_dmabuf.h b/src/gallium/include/state_tracker/vdpau_dmabuf.h
new file mode 100644
index 0000000..886c344
--- /dev/null
+++ b/src/gallium/include/state_tracker/vdpau_dmabuf.h
@@ -0,0 +1,94 @@
+/**************************************************************************
+ *
+ * Copyright 2016 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.
+ *
+ **************************************************************************/
+
+/*
+ * Authors:
+ *      Christian König <christian.koenig at amd.com>
+ *
+ */
+
+#ifndef _VDPAU_DMABUF_H_
+#define _VDPAU_DMABUF_H_
+
+#include <vdpau/vdpau.h>
+
+/* driver specific functions for NV_vdpau_interop */
+#ifndef VDP_FUNC_ID_BASE_DRIVER
+#define VDP_FUNC_ID_BASE_DRIVER 0x2000
+#endif
+
+/* New DMA-buf based implementation */
+#define VDP_FUNC_ID_VIDEO_SURFACE_DMA_BUF (VDP_FUNC_ID_BASE_DRIVER + 2)
+#define VDP_FUNC_ID_OUTPUT_SURFACE_DMA_BUF (VDP_FUNC_ID_BASE_DRIVER + 3)
+
+/* Define some more internal RGBA formats for more
+ * robust handling of Video Surfaces
+ */
+#define VDP_RGBA_FORMAT_R8          (-1)
+#define VDP_RGBA_FORMAT_R8G8        (-2)
+
+struct VdpSurfaceDMABufDesc {
+   /* DMA-buf file descriptor */
+   uint32_t handle;
+   /* Width in pixel */
+   uint32_t width;
+   /* Height in pixel */
+   uint32_t height;
+   /* Offset in bytes */
+   uint32_t offset;
+   /* Stride in bytes */
+   uint32_t stride;
+   /* VDP_RGBA_FORMAT_* as defined in the VDPAU spec and above. */
+   uint32_t format;
+};
+
+/**
+ * \brief Video surface planes
+ */
+typedef uint32_t VdpVideoSurfacePlane;
+
+/** \hideinitializer \brief Luma top field */
+#define VDP_VIDEO_SURFACE_PLANE_LUMA_TOP      ((VdpVideoSurfacePlane)0)
+/** \hideinitializer \brief Luma bottom field */
+#define VDP_VIDEO_SURFACE_PLANE_LUMA_BOTTOM   ((VdpVideoSurfacePlane)1)
+/** \hideinitializer \brief Chroma top field */
+#define VDP_VIDEO_SURFACE_PLANE_CHROMA_TOP    ((VdpVideoSurfacePlane)2)
+/** \hideinitializer \brief Chroma bottom field */
+#define VDP_VIDEO_SURFACE_PLANE_CHROMA_BOTTOM ((VdpVideoSurfacePlane)3)
+
+typedef VdpStatus VdpVideoSurfaceDMABuf(
+   VdpVideoSurface               surface,
+   VdpVideoSurfacePlane          plane,
+   struct VdpSurfaceDMABufDesc * result
+);
+
+typedef VdpStatus VdpOutputSurfaceDMABuf(
+   VdpVideoSurface               surface,
+   struct VdpSurfaceDMABufDesc * result
+);
+
+#endif /* _VDPAU_DMABUF_H_ */
diff --git a/src/gallium/include/state_tracker/vdpau_interop.h b/src/gallium/include/state_tracker/vdpau_interop.h
index 3ca7c9d..04d455a 100644
--- a/src/gallium/include/state_tracker/vdpau_interop.h
+++ b/src/gallium/include/state_tracker/vdpau_interop.h
@@ -35,8 +35,13 @@
 #define _VDPAU_INTEROP_H_
 
 /* driver specific functions for NV_vdpau_interop */
-
+#ifndef VDP_FUNC_ID_BASE_DRIVER
 #define VDP_FUNC_ID_BASE_DRIVER 0x2000
+#endif
+
+/* Older implementation relying on passing pipe_video_buffer and
+ * pipe_resources around. Deprecated and shouldn't be used for new things.
+ */
 #define VDP_FUNC_ID_VIDEO_SURFACE_GALLIUM (VDP_FUNC_ID_BASE_DRIVER + 0)
 #define VDP_FUNC_ID_OUTPUT_SURFACE_GALLIUM (VDP_FUNC_ID_BASE_DRIVER + 1)
 
-- 
2.5.0