Rework buffer management to be more generic and support untiled format

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
2018-07-11 15:16:52 +02:00
parent 2ca67372f8
commit 9f2c069f76
12 changed files with 330 additions and 100 deletions
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+ *
+ * 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 _VIDEO_H_
+#define _VIDEO_H_
+
+#include <stdbool.h>
+
+#define ALIGN(x, y)	((x + (y - 1)) & ~(y - 1))
+
+struct video_format {
+	char *description;
+	unsigned int v4l2_format;
+	unsigned int v4l2_buffers_count;
+	unsigned int drm_format;
+	uint64_t drm_modifier;
+	unsigned int drm_planes_count;
+	unsigned int bpp;
+};
+
+inline unsigned int video_v4l2_format(bool tiled_format)
+{
+	return tiled_format ? V4L2_PIX_FMT_MB32_NV12 : V4L2_PIX_FMT_NV12;
+}
+
+struct video_format *video_format_find(bool tiled_format);
+
+#endif