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 _IMAGE_H_
+#define _IMAGE_H_
+
+#include <va/va_backend.h>
+
+#include "object_heap.h"
+
+#define IMAGE(id)   ((object_image_p)   object_heap_lookup(&driver_data->image_heap,   id))
+#define IMAGE_ID_OFFSET			0x10000000
+
+struct object_image {
+	struct object_base base;
+	VABufferID buf;
+};
+
+typedef struct object_image *object_image_p;
+
+VAStatus sunxi_cedrus_QueryImageFormats(VADriverContextP ctx,
+		VAImageFormat *format_list, int *num_formats);
+
+VAStatus sunxi_cedrus_CreateImage(VADriverContextP ctx, VAImageFormat *format,
+		int width, int height, VAImage *image);
+
+VAStatus sunxi_cedrus_DeriveImage(VADriverContextP ctx, VASurfaceID surface,
+		VAImage *image);
+
+VAStatus sunxi_cedrus_DestroyImage(VADriverContextP ctx, VAImageID image);
+
+VAStatus sunxi_cedrus_SetImagePalette(VADriverContextP ctx, VAImageID image,
+		unsigned char *palette);
+
+VAStatus sunxi_cedrus_GetImage(VADriverContextP ctx, VASurfaceID surface,
+		int x, int y, unsigned int width, unsigned int height,
+		VAImageID image);
+
+VAStatus sunxi_cedrus_PutImage(VADriverContextP ctx, VASurfaceID surface,
+		VAImageID image, int src_x, int src_y, unsigned int src_width,
+		unsigned int src_height, int dest_x, int dest_y,
+		unsigned int dest_width, unsigned int dest_height);
+
+#endif /* _IMAGE_H_ */