#ifndef _SG_SAMPLE_HXX
#define _SG_SAMPLE_HXX 1
-#ifndef __cplusplus
-# error This library requires C++
-#endif
-
-#include <string>
-#include <cstdlib>
-
-#include <simgear/compiler.h>
-#include <simgear/debug/logstream.hxx>
-#include <simgear/structure/SGReferenced.hxx>
-#include <simgear/structure/SGSharedPtr.hxx>
#include <simgear/math/SGMath.hxx>
+#include <simgear/props/props.hxx>
+
+enum {
+ SG_SAMPLE_MONO = 1,
+ SG_SAMPLE_STEREO = 2,
+
+ SG_SAMPLE_4BITS = 4,
+ SG_SAMPLE_8BITS = 8,
+ SG_SAMPLE_16BITS = 16,
+
+ SG_SAMPLE_UNCOMPRESSED = 0,
+ SG_SAMPLE_COMPRESSED = 256,
+
+ SG_SAMPLE_MONO8 = (SG_SAMPLE_MONO|SG_SAMPLE_8BITS),
+ SG_SAMPLE_MONO16 = (SG_SAMPLE_MONO|SG_SAMPLE_16BITS),
+ SG_SAMPLE_MULAW = (SG_SAMPLE_MONO|SG_SAMPLE_8BITS|SG_SAMPLE_COMPRESSED),
+ SG_SAMPLE_ADPCM = (SG_SAMPLE_MONO|SG_SAMPLE_4BITS|SG_SAMPLE_COMPRESSED)
+};
-class SGPath;
/**
* manages everything we need to know for an individual audio sample
*/
-class SGSoundSample : public SGReferenced {
+class SGSoundSampleInfo
+{
+public:
+ SGSoundSampleInfo();
+ ~SGSoundSampleInfo() {}
+
+ /**
+ * Returns the format of this audio sample.
+ * @return SimGear format-id
+ */
+ inline unsigned int get_format() { return (_tracks | _bits | _compressed*256); }
+
+ /**
+ * Get the reference name of this audio sample.
+ * @return Sample name
+ */
+ inline std::string get_sample_name() const { return _refname; }
+
+ /**
+ * Returns the frequency (in Herz) of this audio sample.
+ * @return Frequency
+ */
+ inline unsigned int get_frequency() { return _frequency; }
+
+ /**
+ * Get the current pitch value of this audio sample.
+ * @return Pitch
+ */
+ inline float get_pitch() { return _pitch; }
+
+ /**
+ * Get the final volume value of this audio sample.
+ * @return Volume
+ */
+ inline float get_volume() { return _volume * _master_volume; }
+
+ /**
+ * Returns the size (in bytes) of this audio sample.
+ * @return Data size
+ */
+ inline size_t get_size() const {
+ return (_samples * _tracks * _bits)/8;
+ }
+
+
+ /**
+ * Get the absolute position of this sound.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
+ * @return Absolute position
+ */
+ inline SGVec3d& get_position() { return _absolute_pos; }
+
+ /**
+ * Get the orientation vector of this sound.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right
+ * @return Orientaton vector
+ */
+ inline SGVec3f& get_orientation() { return _orivec; }
+
+ /**
+ * Get the inner angle of the audio cone.
+ * @return Inner angle in degrees
+ */
+ inline float get_innerangle() { return _inner_angle; }
+
+ /**
+ * Get the outer angle of the audio cone.
+ * @return Outer angle in degrees
+ */
+ inline float get_outerangle() { return _outer_angle; }
+
+ /**
+ * Get the remaining gain at the edge of the outer cone.
+ * @return Gain
+ */
+ inline float get_outergain() { return _outer_gain; }
+
+ /**
+ * Get velocity vector (in meters per second) of this sound.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right
+ * @return Velocity vector
+ */
+ inline SGVec3f& get_velocity() { return _velocity; }
+
+ /**
+ * Get reference distance ((in meters) of this sound.
+ * This is the distance where the gain will be half.
+ * @return Reference distance
+ */
+ inline float get_reference_dist() { return _reference_dist; }
+
+ /**
+ * Get maximum distance (in meters) of this sound.
+ * This is the distance where this sound is no longer audible.
+ * @return dist Maximum distance
+ */
+ inline float get_max_dist() { return _max_dist; }
+
+ /**
+ * Test if static data of audio sample configuration has changed.
+ * Calling this function will reset the flag so calling it a second
+ * time in a row will return false.
+ * @return Return true is the static data has changed in the mean time.
+ */
+ bool has_static_data_changed() {
+ bool b = _static_changed; _static_changed = false; return b;
+ }
+
+protected:
+ // static sound emitter info
+ std::string _refname;
+ unsigned int _bits;
+ unsigned int _tracks;
+ unsigned int _samples;
+ unsigned int _frequency;
+ bool _compressed;
+ bool _loop;
+
+ // dynamic sound emitter info (non 3d)
+ bool _static_changed;
+ bool _playing;
+
+ float _pitch;
+ float _volume;
+ float _master_volume;
+
+ // dynamic sound emitter info (3d)
+ bool _use_pos_props;
+ bool _out_of_range;
+
+ float _inner_angle;
+ float _outer_angle;
+ float _outer_gain;
+
+ float _reference_dist;
+ float _max_dist;
+
+ SGPropertyNode_ptr _pos_prop[3];
+ SGVec3d _absolute_pos; // absolute position
+ SGVec3d _relative_pos; // position relative to the base position
+ SGVec3d _direction; // orientation offset
+ SGVec3f _velocity; // Velocity of the source sound.
+
+ // The position and orientation of this sound
+ SGQuatd _orientation; // base orientation
+ SGVec3f _orivec; // orientation vector
+ SGVec3d _base_pos; // base position
+
+ SGQuatd _rotation;
+
+private:
+ static std::string random_string();
+};
+
+
+class SGSoundSample : public SGSoundSampleInfo, public SGReferenced {
public:
/**
* Constructor.
* @param data Pointer to a memory buffer containing this audio sample data
The application may free the data by calling free_data(), otherwise it
- will be resident untill the class is destroyed. This pointer will be
+ will be resident until the class is destroyed. This pointer will be
set to NULL after calling this function.
* @param len Byte length of array
* @param freq Frequency of the provided data (bytes per second)
- * @param format OpenAL format id of the data
+ * @param format SimGear format id of the data
*/
- SGSoundSample( void** data, int len, int freq, int format=AL_FORMAT_MONO8 );
+ SGSoundSample( void** data, int len, int freq, int format=SG_SAMPLE_MONO8 );
SGSoundSample( const unsigned char** data, int len, int freq,
- int format = AL_FORMAT_MONO8 );
+ int format = SG_SAMPLE_MONO8 );
/**
* Destructor
*/
virtual ~SGSoundSample ();
- /**
- * Detect wheter this audio sample holds the information of a sound file.
- * @return Return true if this audio sample is to be constructed from a file.
- */
- inline bool is_file() const { return _is_file; }
-
- SGPath file_path() const;
-
/**
* Test if this audio sample configuration has changed since the last call.
* Calling this function will reset the flag so calling it a second
}
/**
- * Test if static dataa of audio sample configuration has changed.
- * Calling this function will reset the flag so calling it a second
- * time in a row will return false.
- * @return Return true is the static data has changed in the mean time.
+ * Detect whether this audio sample holds the information of a sound file.
+ * @return Return true if this sample is to be constructed from a file.
*/
- bool has_static_data_changed() {
- bool b = _static_changed; _static_changed = false; return b;
- }
+ inline bool is_file() const { return _is_file; }
+
+ SGPath file_path() const;
/**
* Schedule this audio sample for playing. Actual playing will only start
* Schedule this audio sample to stop (or start) playing.
*/
inline void set_out_of_range(bool oor = true) {
- _out_of_range = oor; _playing = oor ? false : true; _changed = true;
+ _out_of_range = oor; _playing = (!oor && _loop); _changed = true;
}
/**
/**
* Free the data associated with this audio sample
*/
- void free_data() {
- if ( _data != NULL ) free( _data ); _data = NULL;
- }
+ void free_data();
/**
* Set the source id of this source
- * @param sid OpenAL source-id
+ * @param sid source-id
*/
- virtual inline void set_source(unsigned int sid) {
+ virtual void set_source(unsigned int sid) {
_source = sid; _valid_source = true; _changed = true;
}
/**
- * Get the OpenAL source id of this source
- * @return OpenAL source-id
+ * Get the source id of this source
+ * @return source-id
*/
- virtual inline unsigned int get_source() { return _source; }
+ virtual unsigned int get_source() { return _source; }
/**
- * Test if the source-id of this audio sample may be passed to OpenAL.
+ * Test if the source-id of this audio sample is usable.
* @return true if the source-id is valid
*/
- virtual inline bool is_valid_source() const { return _valid_source; }
+ virtual bool is_valid_source() const { return _valid_source; }
/**
* Set the source-id of this audio sample to invalid.
*/
- virtual inline void no_valid_source() { _valid_source = false; }
+ virtual void no_valid_source() { _valid_source = false; }
/**
- * Set the OpenAL buffer-id of this source
- * @param bid OpenAL buffer-id
+ * Set the buffer-id of this source
+ * @param bid buffer-id
*/
inline void set_buffer(unsigned int bid) {
_buffer = bid; _valid_buffer = true; _changed = true;
}
/**
- * Get the OpenAL buffer-id of this source
- * @return OpenAL buffer-id
+ * Get the buffer-id of this source
+ * @return buffer-id
*/
inline unsigned int get_buffer() { return _buffer; }
/**
- * Test if the buffer-id of this audio sample may be passed to OpenAL.
+ * Test if the buffer-id of this audio sample is usable.
* @return true if the buffer-id is valid
*/
inline bool is_valid_buffer() const { return _valid_buffer; }
_pitch = p; _changed = true;
}
- /**
- * Get the current pitch value of this audio sample.
- * @return Pitch
- */
- inline float get_pitch() { return _pitch; }
-
/**
* Set the master volume of this sample. Should be between 0.0 and 1.0.
* The final volume is calculated by multiplying the master and audio sample
}
/**
- * Get the final volume value of this audio sample.
- * @return Volume
- */
- inline float get_volume() { return _volume * _master_volume; }
-
- /**
- * Set the OpenAL format of this audio sample.
- * @param format OpenAL format-id
- */
- inline void set_format( int format ) { _format = format; }
-
- /**
- * Returns the format of this audio sample.
- * @return OpenAL format-id
+ * Set the SimGear format of this audio sample.
+ * @param format SimGear format-id
*/
- inline int get_format() { return _format; }
+ inline void set_format( int fmt ) {
+ _tracks = fmt & 0x3; _bits = fmt & 0x1C; _compressed = fmt & 0x100;
+ }
/**
* Set the frequency (in Herz) of this audio sample.
* @param freq Frequency
*/
- inline void set_frequency( int freq ) { _freq = freq; }
-
- /**
- * Returns the frequency (in Herz) of this audio sample.
- * @return Frequency
- */
- inline int get_frequency() { return _freq; }
+ inline void set_frequency( int freq ) { _frequency = freq; }
/**
* Sets the size (in bytes) of this audio sample.
* @param size Data size
*/
- inline void set_size( size_t size ) { _size = size; }
-
- /**
- * Returns the size (in bytes) of this audio sample.
- * @return Data size
- */
- inline size_t get_size() const { return _size; }
+ inline void set_size( size_t size ) {
+ _samples = size*8/(_bits*_tracks);
+ }
+ inline void set_no_samples(size_t samples) { _samples = samples; }
/**
* Set the position of this sound relative to the base position.
_base_pos = pos; _changed = true;
}
- /**
- * Get the absolute position of this sound.
- * This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
- * @return Absolute position
- */
- SGVec3d& get_position() { return _absolute_pos; }
+ inline void set_position_properties(SGPropertyNode_ptr pos[3]) {
+ _pos_prop[0] = pos[0]; _pos_prop[1] = pos[1]; _pos_prop[2] = pos[2];
+ if (pos[0] || pos[1] || pos[2]) _use_pos_props = true;
+ _changed = true;
+ }
/**
* Set the orientation of this sound.
_static_changed = true;
}
- /**
- * Get the orientation vector of this sound.
- * This is in the same coordinate system as OpenGL; y=up, z=back, x=right
- * @return Orientaton vector
- */
- SGVec3f& get_orientation() { return _orivec; }
-
- /**
- * Get the inner angle of the audio cone.
- * @return Inner angle in degrees
- */
- float get_innerangle() { return _inner_angle; }
-
- /**
- * Get the outer angle of the audio cone.
- * @return Outer angle in degrees
- */
- float get_outerangle() { return _outer_angle; }
-
- /**
- * Get the remaining gain at the edge of the outer cone.
- * @return Gain
- */
- float get_outergain() { return _outer_gain; }
-
/**
* Set the velocity vector (in meters per second) of this sound.
* This is in the local frame coordinate system; x=north, y=east, z=down
_velocity = vel; _changed = true;
}
- /**
- * Get velocity vector (in meters per second) of this sound.
- * This is in the same coordinate system as OpenGL; y=up, z=back, x=right
- * @return Velocity vector
- */
- SGVec3f& get_velocity() { return _velocity; }
-
-
/**
* Set reference distance (in meters) of this sound.
* This is the distance where the gain will be half.
_reference_dist = dist; _static_changed = true;
}
- /**
- * Get reference distance ((in meters) of this sound.
- * This is the distance where the gain will be half.
- * @return Reference distance
- */
- inline float get_reference_dist() { return _reference_dist; }
-
-
/**
* Set maximum distance (in meters) of this sound.
* This is the distance where this sound is no longer audible.
_max_dist = dist; _static_changed = true;
}
- /**
- * Get maximum distance (in meters) of this sound.
- * This is the distance where this sound is no longer audible.
- * @return dist Maximum distance
- */
- inline float get_max_dist() { return _max_dist; }
-
- /**
- * Get the reference name of this audio sample.
- * @return Sample name
- */
- inline std::string get_sample_name() const { return _refname; }
-
inline virtual bool is_queue() const { return false; }
void update_pos_and_orientation();
-private:
-
- // Position of the source sound.
- SGVec3d _absolute_pos; // absolute position
- SGVec3d _relative_pos; // position relative to the base position
- SGVec3d _direction; // orientation offset
- SGVec3f _velocity; // Velocity of the source sound.
-
- // The position and orientation of this sound
- SGQuatd _orientation; // base orientation
- SGVec3f _orivec; // orientation vector for OpenAL
- SGVec3d _base_pos; // base position
+protected:
+ bool _is_file;
+ bool _changed;
- SGQuatd _rotation;
+ // Sources are points emitting sound.
+ bool _valid_source;
+ unsigned int _source;
- std::string _refname; // name or file path
+private:
unsigned char* _data;
- // configuration values
- int _format;
- size_t _size;
- int _freq;
-
// Buffers hold sound data.
bool _valid_buffer;
unsigned int _buffer;
-
- // Sources are points emitting sound.
- bool _valid_source;
- unsigned int _source;
-
- // The orientation of this sound (direction and cut-off angles)
- float _inner_angle;
- float _outer_angle;
- float _outer_gain;
-
- float _pitch;
- float _volume;
- float _master_volume;
- float _reference_dist;
- float _max_dist;
- bool _loop;
-
- bool _playing;
- bool _changed;
- bool _static_changed;
- bool _out_of_range;
- bool _is_file;
-
- string random_string();
};
-
#endif // _SG_SAMPLE_HXX
projects / simgear.git / blobdiff