Adds a sunxi-cedrus-drv-video libVA backend

This VA backend uses v4l2's Frame API proposal to interface with the "sunxi-cedrus" video driver on Allwinner SoC. Only a few parts of the code are really dependent on sunxi-cedrus and this VA backend could be reused for other v4l drivers using the Frame API.
2016-08-05 12:23:15 +02:00
commit e263c9542c
28 changed files with 2805 additions and 0 deletions
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+/*
+ * Copyright (c) 2016 Florent Revest, <florent.revest@free-electrons.com>
+ *               2007 Intel Corporation. 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 PRECISION INSIGHT AND/OR ITS SUPPLIERS 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 _SURFACES_H_
+#define _SURFACES_H_
+
+#include <va/va_backend.h>
+
+#include "object_heap.h"
+
+#define SURFACE(id) ((object_surface_p) object_heap_lookup(&driver_data->surface_heap, id))
+#define SURFACE_ID_OFFSET		0x04000000
+
+struct object_surface {
+	struct object_base base;
+	VASurfaceID surface_id;
+	uint32_t request;
+	uint32_t input_buf_index;
+	uint32_t output_buf_index;
+	int width;
+	int height;
+	VAStatus status;
+};
+
+typedef struct object_surface *object_surface_p;
+
+VAStatus sunxi_cedrus_CreateSurfaces(VADriverContextP ctx, int width,
+		int height, int format, int num_surfaces, VASurfaceID *surfaces);
+
+VAStatus sunxi_cedrus_DestroySurfaces(VADriverContextP ctx,
+		VASurfaceID *surface_list, int num_surfaces);
+
+VAStatus sunxi_cedrus_SyncSurface(VADriverContextP ctx,
+		VASurfaceID render_target);
+
+VAStatus sunxi_cedrus_QuerySurfaceStatus(VADriverContextP ctx,
+		VASurfaceID render_target, VASurfaceStatus *status);
+
+VAStatus sunxi_cedrus_PutSurface(VADriverContextP ctx, VASurfaceID surface,
+		void *draw, short srcx, short srcy, unsigned short srcw,
+		unsigned short srch, short destx, short desty,
+		unsigned short destw, unsigned short desth,
+		VARectangle *cliprects, unsigned int number_cliprects,
+		unsigned int flags);
+
+VAStatus sunxi_cedrus_LockSurface(VADriverContextP ctx, VASurfaceID surface,
+		unsigned int *fourcc, unsigned int *luma_stride,
+		unsigned int *chroma_u_stride, unsigned int *chroma_v_stride,
+		unsigned int *luma_offset, unsigned int *chroma_u_offset,
+		unsigned int *chroma_v_offset, unsigned int *buffer_name,
+		void **buffer);
+
+VAStatus sunxi_cedrus_UnlockSurface(VADriverContextP ctx, VASurfaceID surface);
+
+#endif /* _SURFACES_H_ */