zdoom-macos-deps/deps/instpatch/include/libinstpatch-2/libinstpatch/IpatchSample.h
2020-12-12 13:44:13 +02:00

296 lines
12 KiB
C

/*
* libInstPatch
* Copyright (C) 1999-2014 Element Green <element@elementsofsound.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; version 2.1
* of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA or on the web at http://www.gnu.org.
*/
#ifndef __IPATCH_SAMPLE_H__
#define __IPATCH_SAMPLE_H__
#include <glib.h>
#include <glib-object.h>
#include <libinstpatch/IpatchSampleTransform.h>
/* forward type declarations */
typedef struct _IpatchSample IpatchSample; /* dummy typedef */
typedef struct _IpatchSampleIface IpatchSampleIface;
typedef struct _IpatchSampleHandle IpatchSampleHandle;
#include <libinstpatch/IpatchSampleData.h>
#define IPATCH_TYPE_SAMPLE (ipatch_sample_get_type ())
#define IPATCH_SAMPLE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), IPATCH_TYPE_SAMPLE, \
IpatchSample))
#define IPATCH_SAMPLE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), IPATCH_TYPE_SAMPLE, \
IpatchSampleIface))
#define IPATCH_IS_SAMPLE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), IPATCH_TYPE_SAMPLE))
#define IPATCH_SAMPLE_GET_IFACE(obj) \
(G_TYPE_INSTANCE_GET_INTERFACE ((obj), IPATCH_TYPE_SAMPLE, \
IpatchSampleIface))
/**
* IpatchSampleHandleOpenFunc:
* @handle: Caller supplied structure to initialize
* @err: Location to store error information
*
* #IpatchSample interface method function type to open a sample for reading
* or writing. This method is optional for an #IpatchSample interface and if
* not specified then it is assumed that the open was successful and nothing
* additional need be done. All fields of @handle structure are already
* initialized, except <structfield>data1</structfield>,
* <structfield>data2</structfield> and <structfield>data3</structfield>
* which are available for the interface implementation.
*
* Returns: %TRUE on success, %FALSE otherwise (in which case an error should
* optionally be stored in @err).
*/
typedef gboolean(*IpatchSampleHandleOpenFunc)(IpatchSampleHandle *handle,
GError **err);
/**
* IpatchSampleHandleCloseFunc:
* @handle: Sample handle to close (as returned from #IpatchSampleHandleOpenFunc)
*
* #IpatchSample interface method to free any resources allocated in
* #IpatchSampleOpenFunc to @handle. This method is optional for an
* #IpatchSample interface and need not be specified if nothing needs to be done
* to release any resources allocated by #IpatchSampleHandleOpenFunc.
*/
typedef void (*IpatchSampleHandleCloseFunc)(IpatchSampleHandle *handle);
/**
* IpatchSampleHandleReadFunc:
* @handle: Handle to read from (as returned from #IpatchSampleOpenFunc)
* @offset: Offset in sample to start read from (in frames), use
* #IPATCH_SAMPLE_CUROFS to use current offset (starts at 0 if not specified)
* @frames: Size of sample data to read (in frames)
* @buf: Buffer to store sample data in
* @err: Location to store error information
*
* #IpatchSample interface method function type to read data from a
* sample handle. Can be %NULL in #IpatchSampleIface if sample data is not
* readable. Sample data should be stored in its native format.
*
* Returns: Should return %TRUE on success, %FALSE otherwise (in which case
* an error should optionally be stored in @err).
*/
typedef gboolean(*IpatchSampleHandleReadFunc)(IpatchSampleHandle *handle,
guint offset, guint frames,
gpointer buf, GError **err);
/**
* IpatchSampleHandleWriteFunc:
* @handle: Handle to write to (as returned from #IpatchSampleOpenFunc)
* @offset: Offset in sample to start write to (in frames), use
* #IPATCH_SAMPLE_CUROFS to use current offset (starts at 0 if not specified)
* @frames: Size of sample data to write (in frames)
* @buf: Buffer to store sample data in
* @err: Location to store error information
*
* #IpatchSample interface method function type to write data to a
* sample handle. Can be %NULL in #IpatchSampleIface if sample data is not
* writable. Sample data will be supplied in its native format.
*
* Returns: Should return %TRUE on success, %FALSE otherwise (in which case
* an error should optionally be stored in @err).
*/
typedef gboolean(*IpatchSampleHandleWriteFunc)(IpatchSampleHandle *handle,
guint offset, guint frames,
gconstpointer buf, GError **err);
/* Sample interface */
struct _IpatchSampleIface
{
GTypeInterface parent_class;
IpatchSampleHandleOpenFunc open;
IpatchSampleHandleCloseFunc close;
IpatchSampleHandleReadFunc read;
IpatchSampleHandleWriteFunc write;
int *loop_types; /* -1 terminated array of supp. loop types (NULL = none) */
};
/* Sample handle for I/O operations */
struct _IpatchSampleHandle
{
IpatchSample *sample; /* The sample which this handle applies to */
IpatchSampleTransform *transform; /* Set if sample is being converted */
IpatchSampleHandleReadFunc read; /* Read method pointer (copied from IpatchItem interface) */
IpatchSampleHandleWriteFunc write; /* Write method pointer (copied from IpatchItem interface) */
IpatchSampleHandleCloseFunc close; /* Close method pointer (copied from IpatchItem interface) */
guint32 read_mode : 1; /* TRUE if read mode, FALSE if write mode */
guint32 manual_transform : 1; /* Methods handle sample transform */
guint32 release_transform : 1; /* TRUE if transform should be released from transform pool */
guint32 format : 12; /* Format to transform to */
guint32 reserved : 17;
guint32 channel_map; /* Channel map for multi-channel audio transform */
gpointer data1; /* sample interface defined */
gpointer data2; /* sample interface defined */
gpointer data3; /* sample interface defined */
gpointer data4; /* sample interface defined */
guint32 reserved2;
};
/**
* IpatchSampleLoopType:
* @IPATCH_SAMPLE_LOOP_NONE: No loop.
* @IPATCH_SAMPLE_LOOP_STANDARD: Standard loop.
* @IPATCH_SAMPLE_LOOP_RELEASE: Loop till note release stage.
* @IPATCH_SAMPLE_LOOP_PINGPONG: Play forward and then in reverse continously.
*
* Sample looping type.
*/
typedef enum
{
IPATCH_SAMPLE_LOOP_NONE,
IPATCH_SAMPLE_LOOP_STANDARD,
IPATCH_SAMPLE_LOOP_RELEASE,
IPATCH_SAMPLE_LOOP_PINGPONG
} IpatchSampleLoopType;
/**
* IPATCH_SAMPLE_FORMAT_DEFAULT:
*
* Default sample format for #IpatchSample interface.
*/
#define IPATCH_SAMPLE_FORMAT_DEFAULT (IPATCH_SAMPLE_16BIT | IPATCH_SAMPLE_MONO \
| IPATCH_SAMPLE_LENDIAN | IPATCH_SAMPLE_SIGNED)
/**
* IPATCH_SAMPLE_RATE_MIN: (skip)
*
* Minimum sample rate.
* SoundFont spec says 8000 Hz is minimum guaranteed, seen lots of smaller values though.
*/
#define IPATCH_SAMPLE_RATE_MIN 100
/**
* IPATCH_SAMPLE_RATE_MAX: (skip)
*
* Maximum sample rate.
*/
#define IPATCH_SAMPLE_RATE_MAX 192000
/**
* IPATCH_SAMPLE_RATE_DEFAULT: (skip)
*
* Default sample rate.
*/
#define IPATCH_SAMPLE_RATE_DEFAULT 44100
/**
* IPATCH_SAMPLE_ROOT_NOTE_DEFAULT: (skip)
*
* Default root note.
*/
#define IPATCH_SAMPLE_ROOT_NOTE_DEFAULT 60
/**
* IPATCH_SAMPLE_LOOP_TYPE_TERM:
*
* Value used for terminating list of supported loop types.
*/
#define IPATCH_SAMPLE_LOOP_TYPE_TERM (-1)
/**
* IPATCH_SAMPLE_HANDLE_FORMAT:
* @handle: Sample handle
*
* Macro to access transform sample format of a sample handle.
*
* Returns: Sample transform format.
*/
#define IPATCH_SAMPLE_HANDLE_FORMAT(handle) ((handle)->format)
/* some convenient loop_type arrays for use by IpatchSample interfaces */
extern int ipatch_sample_loop_types_standard[];
extern int ipatch_sample_loop_types_standard_release[];
GType ipatch_sample_get_type(void);
int *ipatch_sample_get_loop_types(IpatchSample *sample);
int *ipatch_sample_type_get_loop_types(GType type);
int *ipatch_sample_get_loop_types_len(IpatchSample *sample, int *len);
int *ipatch_sample_type_get_loop_types_len(GType type, int *len);
void ipatch_sample_set_format(IpatchSample *sample, int format);
int ipatch_sample_get_format(IpatchSample *sample);
void ipatch_sample_set_size(IpatchSample *sample, guint size);
guint ipatch_sample_get_size(IpatchSample *sample, guint *bytes);
int ipatch_sample_get_frame_size(IpatchSample *sample);
IpatchSampleData *ipatch_sample_get_sample_data(IpatchSample *sample);
gboolean ipatch_sample_set_sample_data(IpatchSample *sample,
IpatchSampleData *sampledata);
gboolean ipatch_sample_read(IpatchSample *sample, guint offset, guint frames,
gpointer buf, GError **err);
gpointer ipatch_sample_read_size(IpatchSample *sample, guint offset, guint size, GError **err);
gboolean ipatch_sample_write(IpatchSample *sample, guint offset, guint frames,
gconstpointer buf, GError **err);
gboolean ipatch_sample_write_size(IpatchSample *sample, guint offset,
gconstpointer buf, guint size, GError **err);
gboolean ipatch_sample_read_transform(IpatchSample *sample, guint offset, guint frames,
gpointer buf, int format, guint32 channel_map,
GError **err);
gpointer ipatch_sample_read_transform_size(IpatchSample *sample, guint offset, guint size,
int format, guint32 channel_map, GError **err);
gboolean ipatch_sample_write_transform(IpatchSample *sample, guint offset, guint frames,
gconstpointer buf, int format, guint32 channel_map,
GError **err);
gboolean ipatch_sample_write_transform_size(IpatchSample *sample, guint offset,
gconstpointer buf, guint size, int format,
guint32 channel_map, GError **err);
gboolean ipatch_sample_copy(IpatchSample *dest_sample, IpatchSample *src_sample,
guint32 channel_map, GError **err);
gboolean ipatch_sample_save_to_file(IpatchSample *sample, const char *filename,
int file_format, int sub_format, GError **err);
gboolean ipatch_sample_handle_open(IpatchSample *sample,
IpatchSampleHandle *handle, char mode,
int format, guint32 channel_map, GError **err);
void ipatch_sample_handle_close(IpatchSampleHandle *handle);
IpatchSampleTransform *ipatch_sample_handle_get_transform(IpatchSampleHandle *handle);
void ipatch_sample_handle_set_transform(IpatchSampleHandle *handle,
IpatchSampleTransform *transform);
int ipatch_sample_handle_get_format(IpatchSampleHandle *handle);
int ipatch_sample_handle_get_frame_size(IpatchSampleHandle *handle);
guint ipatch_sample_handle_get_max_frames(IpatchSampleHandle *handle);
gpointer ipatch_sample_handle_read(IpatchSampleHandle *handle, guint offset, guint frames,
gpointer buf, GError **err);
gpointer
ipatch_sample_handle_read_size(IpatchSampleHandle *handle, guint offset,
guint size, GError **err);
gboolean ipatch_sample_handle_write(IpatchSampleHandle *handle, guint offset, guint frames,
gconstpointer buf, GError **err);
gboolean
ipatch_sample_handle_write_size(IpatchSampleHandle *handle, guint offset,
gconstpointer buf, guint size, GError **err);
gboolean ipatch_sample_handle_cascade_open(IpatchSampleHandle *handle,
IpatchSample *sample, GError **err);
GParamSpec *ipatch_sample_install_property(GObjectClass *oclass,
guint property_id,
const char *property_name);
GParamSpec *ipatch_sample_install_property_readonly(GObjectClass *oclass,
guint property_id,
const char *property_name);
GParamSpec *ipatch_sample_new_property_param_spec(const char *property_name,
GParamFlags flags);
#endif