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-rw-r--r--include/lv2/resize-port/resize-port.h89
1 files changed, 89 insertions, 0 deletions
diff --git a/include/lv2/resize-port/resize-port.h b/include/lv2/resize-port/resize-port.h
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+++ b/include/lv2/resize-port/resize-port.h
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+/*
+ Copyright 2007-2016 David Robillard <d@drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef LV2_RESIZE_PORT_H
+#define LV2_RESIZE_PORT_H
+
+/**
+ @defgroup resize-port Resize Port
+ @ingroup lv2
+
+ Dynamically sized LV2 port buffers.
+
+ @{
+*/
+
+#include <stddef.h>
+#include <stdint.h>
+
+// clang-format off
+
+#define LV2_RESIZE_PORT_URI "http://lv2plug.in/ns/ext/resize-port" ///< http://lv2plug.in/ns/ext/resize-port
+#define LV2_RESIZE_PORT_PREFIX LV2_RESIZE_PORT_URI "#" ///< http://lv2plug.in/ns/ext/resize-port#
+
+#define LV2_RESIZE_PORT__asLargeAs LV2_RESIZE_PORT_PREFIX "asLargeAs" ///< http://lv2plug.in/ns/ext/resize-port#asLargeAs
+#define LV2_RESIZE_PORT__minimumSize LV2_RESIZE_PORT_PREFIX "minimumSize" ///< http://lv2plug.in/ns/ext/resize-port#minimumSize
+#define LV2_RESIZE_PORT__resize LV2_RESIZE_PORT_PREFIX "resize" ///< http://lv2plug.in/ns/ext/resize-port#resize
+
+// clang-format on
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** A status code for state functions. */
+typedef enum {
+ LV2_RESIZE_PORT_SUCCESS = 0, /**< Completed successfully. */
+ LV2_RESIZE_PORT_ERR_UNKNOWN = 1, /**< Unknown error. */
+ LV2_RESIZE_PORT_ERR_NO_SPACE = 2 /**< Insufficient space. */
+} LV2_Resize_Port_Status;
+
+/** Opaque data for resize method. */
+typedef void* LV2_Resize_Port_Feature_Data;
+
+/** Host feature to allow plugins to resize their port buffers. */
+typedef struct {
+ /** Opaque data for resize method. */
+ LV2_Resize_Port_Feature_Data data;
+
+ /**
+ Resize a port buffer to at least `size` bytes.
+
+ This function MAY return an error, in which case the port buffer was not
+ resized and the port is still connected to the same location. Plugins
+ MUST gracefully handle this situation.
+
+ This function is in the audio threading class.
+
+ The host MUST preserve the contents of the port buffer when resizing.
+
+ Plugins MAY resize a port many times in a single run callback. Hosts
+ SHOULD make this as inexpensive as possible.
+ */
+ LV2_Resize_Port_Status (*resize)(LV2_Resize_Port_Feature_Data data,
+ uint32_t index,
+ size_t size);
+} LV2_Resize_Port_Resize;
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+/**
+ @}
+*/
+
+#endif /* LV2_RESIZE_PORT_H */