-Name of an instrument zone shouldn't prefixed by the preset zone
name.
This is due to the fact that instrument zone are common to all
preset zone. Consequently, an instrument zone cannot identfied
via a preset zone.
-This new change, simply prefixe a zone as this:
instrument zone name prefixed by iz:
preset zone name prefixed by pz:
Normalized value of MIDI sources (before unipolar or bipolar mapping) is always in the range [0..+1], regardless of MIDI event (even for FLUID_MOD_PITCHWHEEL).
Actually some basic modulators check are done at noteon time (in fluid_voice_add_mod()). That means that we know if a modulator (modx) is invalid only when a MIDI noteon is received and only for a preset modx belongs to. This is not appropriate.
This moves the modulator checking at soundfont loading time. Enhancements are:
1) A better verbose modulator integrity check, for any soundfont loaded at appropriate time.
1.1) All modulators are checked (preset zone (local/global), instrument zone (local/global).
1.2.1) Modulators check are enforced to source src1 and src2 (for non-CC and CC sources) (following SF specs (except for CC LSB) ( see comment in fluid_synth_cc_LOCAL()).
Modulators CC sources checking is coherent with the actual behaviour in fluid_synth_cc_LOCAL() in regard of modulation triggering.
1.2.2) Also, identical modulator in the same zone are detected.
1.2.3) Any invalid modulator(sources invalid, or modulator identical) is removed at loading time with a warning message displaying the cause and name of the modulators.
2) This fix a bug in noteon, in the case of identical modulators in global preset zone.
Assuming 2 identical modulator (m1 and m2) in a preset global zone, the actual noteon doesn't check this case (the actual code detect identical modulator in all others zones (instrument (local or global), preset(local)) but not preset global).
3) NoteOn is faster.
3.1)There is no more modulators checks at noteon making this more efficient.
3.2) As there are no identical modulator in the same zone, there is no more identity modulator check (i.e local zone against local zone), (i.e global zone against global zone). This result in a faster code and the bug described in (2) is gone.
4) Modulators sources checking as been added in API functions fluid_synth_add_default_mod() and fluid_voice_add_mod(). Please
- When primary source input (src1) is set to General Controller
'No Controller', output will be forced to 0.0 at synthesis time
(see fluid_mod_get_value()).
That means that the minimum value of the modulator will be always 0.0.
We need to force amount value to 0 to ensure a correct evaluation of the
minimum value later (see fluid_voice_get_lower_boundary_for_attenuation()).
- When secondary source input (src2) is set to General
Controller 'No Controller', output will be forced to +1.0 at synthesis time
(see fluid_mod_get_value()).
That means that this source will behave unipolar only. We need to force the
unipolar flags to ensure the modulator will behave correctly later in
fluid_voice_get_lower_boundary_for_attenuation().
This change removes the warning message if retrieving the soundfont file
modification time fails in the sample cache loader. The warning made sense
while we didn't have mtime support on all platforms, but after switching
to GLibs g_stat, it's no longer needed.
To reduce the number of calls to fluid_get_file_modification_time and also
get rid of a possible race condition, getting the mtime has been moved to
fluid_samplecache_load.
This change also fixes#483 because it removes the bogus warning messages
if a soundfont was loaded from memory by abusing the filename to store a
pointer.
- v variable is renamed min_val for clarity.
- This fix a bug when calculating the possible minimun
value (min_val) of a modulator. min_val should only
be dependant of:
- signs of mapped sources (ie bipolar [-1..+1] or unipolar [0..+1])
- sign of amount.
- absolute value of amount.
If we move UNKN_ID to the bottom of the enum, in the for() cycle inside chunkid() if the value is not found then the "i" variable will be already UNKN_ID.
I tried to check the generated ASM code when WITH_FLOAT macro is defined and when it is undefined. In both cases I noticed that there are some points where the math number are converted from float to double and viceversa. Actually this happens whether the FPU is present or not, perhaps for granting the right precision in digits. I also noticed few points that could be simplified a bit by using integer math, so I also included them.
* Since fluid_voice_get_actual_key() returns an integer value, the value 60 could be subtracted directly as integer, the code generated looks a bit better.
* FLUID_NOISE_FLOOR needs to be cast to fluid_real_t to generate a bit more efficient code.
* DC_OFFSET needs a cast to fluid_real_t to generate a bit more efficient code.
* "last_fres" and "output_rate" are already fluid_real_t, so they do not need type cast.
* "chan_add", "par1_add" and "par2_add" are integer types, so they can be added without FPU. "chan_mul", "par1_mul" and "par2_mul" are already fluid_real_t, so they do not need type cast. Instead, the constant 0.5 needs cast to fluid_real_t to be more efficient.
Libreadline is already used into fluid_istream_readline().
In my opinion, there is no need to have this duplicated code, so I would suggest to move the call to add_history() into fluid_sys.h
Closes#460.
Since 'data' is an integer value clipped between +/-8192 and 'nrpn_scale' is a char value, this calculation could be done with integers and then return the fluid_real_t value.
Addresses #455.
Instead of saving the name of the driver, it would be worth to save to pointer to the selected definition instead.
In this way, the function for deleting the driver does not need to search its name by parsing all the list, but it just needs to call the pointer into the saved definition (less code). This fix can be applied to MIDI drivers too.
I also moved the FLUID_FREE(allnames) inside the "if(allnames != NULL)" block, nothing bad should happen even by keeping that instruction outside, but actually there is no need to call the free if allnames is NULL.
In my opionion, it should be possible to simplify the code by installing the drivers with a for() cycle instead of doing tons of #ifdef...#endif.
The size of the binary code is basically the same as before, but the source lines are much less. I think that it could be done also for MIDI input drivers.
Actually, the function roundi() already returns an "int" type value, so in my opinion there is no need to use a floating point value for saturating the values in the range -32768/+32767. The generated assembly code looks more efficient after that.
- fluid_dsound_audio_run() and fluid_win32_error() are now static functions.
- WAVEFORMATEX is not required by DirectSound during the playback. We do not need it anymore after calling ::SetFormat(), so allocating this structure dynamically inside driver structure is useless.
- Implemented support for float sample type.
- Uses an event object for handling the end of thread, it allows to combine the quit event with the later wait in milliseconds in a single block.
- Calculates the amount of milliseconds to sleep rather than sleeping always for one millisecond.
- Fix an error into a FLUID_LOG() call.
- Fix handle leak of the thread, now it is correctly closed with CloseHandle().
- ExitThread() is a nonsense in that position, since the thread is already exiting.
- Fix error when compiling with WSDK 8.1, by defining NOBITMAP, in case NOGDI macro added somewhere
Since v 2.1 ,as recommended by soundfont 2.01/2.4 spec
ATTACK section is convex. So, when skiping from a
section above ATTACK to ATTACK, it is necessary to
correct current modulation envelope value to get
seamless transition.
adds a new setting "synth.effects-groups" that allows multiple effects
units, in order to render effects of each midi channel to a separate
audio channel
