Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 131 insertions, 0 deletions

diff --git a/third_party/pipewire/spa/buffer/buffer.h b/third_party/pipewire/spa/buffer/buffer.h
new file mode 100644
index 0000000000..47204acbcf
--- /dev/null
+++ b/third_party/pipewire/spa/buffer/buffer.h
@@ -0,0 +1,131 @@
+/* Simple Plugin API
+ * Copyright © 2018 Wim Taymans
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 SPA_BUFFER_H
+#define SPA_BUFFER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <spa/utils/defs.h>
+#include <spa/buffer/meta.h>
+
+/** \defgroup spa_buffer Buffers
+ *
+ * Buffers describe the data and metadata that is exchanged between
+ * ports of a node.
+ */
+
+/**
+ * \addtogroup spa_buffer
+ * \{
+ */
+
+enum spa_data_type {
+	SPA_DATA_Invalid,
+	SPA_DATA_MemPtr,		/**< pointer to memory, the data field in
+					  *  struct spa_data is set. */
+	SPA_DATA_MemFd,			/**< generic fd, mmap to get to memory */
+	SPA_DATA_DmaBuf,		/**< fd to dmabuf memory */
+	SPA_DATA_MemId,			/**< memory is identified with an id */
+
+	_SPA_DATA_LAST,			/**< not part of ABI */
+};
+
+/** Chunk of memory, can change for each buffer */
+struct spa_chunk {
+	uint32_t offset;		/**< offset of valid data. Should be taken
+					  *  modulo the data maxsize to get the offset
+					  *  in the data memory. */
+	uint32_t size;			/**< size of valid data. Should be clamped to
+					  *  maxsize. */
+	int32_t stride;			/**< stride of valid data */
+#define SPA_CHUNK_FLAG_NONE		0
+#define SPA_CHUNK_FLAG_CORRUPTED	(1u<<0)	/**< chunk data is corrupted in some way */
+#define SPA_CHUNK_FLAG_EMPTY		(1u<<1)	/**< chunk data is empty with media specific
+						  *  neutral data such as silence or black. This
+						  *  could be used to optimize processing. */
+	int32_t flags;			/**< chunk flags */
+};
+
+/** Data for a buffer this stays constant for a buffer */
+struct spa_data {
+	uint32_t type;			/**< memory type, one of enum spa_data_type, when
+					  *  allocating memory, the type contains a bitmask
+					  *  of allowed types. SPA_ID_INVALID is a special
+					  *  value for the allocator to indicate that the
+					  *  other side did not explicitly specify any
+					  *  supported data types. It should probably use
+					  *  a memory type that does not require special
+					  *  handling in addition to simple mmap/munmap. */
+#define SPA_DATA_FLAG_NONE	 0
+#define SPA_DATA_FLAG_READABLE	(1u<<0)	/**< data is readable */
+#define SPA_DATA_FLAG_WRITABLE	(1u<<1)	/**< data is writable */
+#define SPA_DATA_FLAG_DYNAMIC	(1u<<2)	/**< data pointer can be changed */
+#define SPA_DATA_FLAG_READWRITE	(SPA_DATA_FLAG_READABLE|SPA_DATA_FLAG_WRITABLE)
+	uint32_t flags;			/**< data flags */
+	int64_t fd;			/**< optional fd for data */
+	uint32_t mapoffset;		/**< offset to map fd at */
+	uint32_t maxsize;		/**< max size of data */
+	void *data;			/**< optional data pointer */
+	struct spa_chunk *chunk;	/**< valid chunk of memory */
+};
+
+/** A Buffer */
+struct spa_buffer {
+	uint32_t n_metas;		/**< number of metadata */
+	uint32_t n_datas;		/**< number of data members */
+	struct spa_meta *metas;		/**< array of metadata */
+	struct spa_data *datas;		/**< array of data members */
+};
+
+/** Find metadata in a buffer */
+static inline struct spa_meta *spa_buffer_find_meta(const struct spa_buffer *b, uint32_t type)
+{
+	uint32_t i;
+
+	for (i = 0; i < b->n_metas; i++)
+		if (b->metas[i].type == type)
+			return &b->metas[i];
+
+	return NULL;
+}
+
+static inline void *spa_buffer_find_meta_data(const struct spa_buffer *b, uint32_t type, size_t size)
+{
+	struct spa_meta *m;
+	if ((m = spa_buffer_find_meta(b, type)) && m->size >= size)
+		return m->data;
+	return NULL;
+}
+
+/**
+ * \}
+ */
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* SPA_BUFFER_H */