--- linuxsampler/trunk/ChangeLog	2020/01/23 18:15:37	3724
+++ linuxsampler/trunk/ChangeLog	2021/06/19 15:27:02	3964
@@ -1,5 +1,14 @@
 Version SVN trunk (?)
 
+  * GigaStudio/Gigasampler format engine:
+    - Use libgig's new IO-per-thread feature to avoid file I/O concurrency
+      issues with .gig file.
+    - Use libgig's new method gig::File::GetSample() with method
+      gig::File::CountSamples() instead of now deprecated
+      gig::File::GetFirstSample() / gig::File::GetNextSample() pair.
+
+Version 2.2.0 (9 May 2021)
+
   * general changes:
     - Fixed compiler error in Pool.h.
     - Require C++14 compiler support.
@@ -49,6 +58,31 @@
       entry/increment/decrement CC messages.
     - Fixed crash when editing key groups (a.k.a. exclusive groups) with an
       instrument editor.
+    - Fixed playing noise at the end of a disk stream under certain conditions.
+    - Fixed potential crash with high pitch at end of RAM playback.
+    - Added configure checks whether C++ compiler supports so called
+      'designated initializers'.
+    - Added global backtraceAsString() function for debugging purposes
+      (POSIX systems only, no Windows implementation yet).
+    - Thread class: Added new methods pushCancelable(), popCancelable(), name(),
+      nameOfCaller() and setNameOfCaller().
+    - configure: Always check for availability of pthread_testcancel() and use
+      it if so (previously it was only used if explicitly enabled by configure
+      option).
+    - Thread class: raise compiler warning if pthread_testcancel() is not
+      available, because it can lead to deadlocks.
+    - Mutex class: Implemented optional bug detection and deadlock debugging
+      features.
+    - Ref<> class is now thread safe (as lock-free and wait-free
+      implementation).
+    - Fixed compilation error with Bison >= 3.6.0.
+    - Fixed rare crash when switching between instruments that had instrument
+      scripts loaded.
+    - Allow EffectChain::InsertEffect() as alternative to
+      EffectChain::AppendEffect() (i.e. with index equal to current chain size).
+    - ConstCapacityArray class: Fixed bug in remove() method.
+    - Fixed crash on certain MIDI RPN and NRPN messages that occurred if no
+      real-time instrument script was loaded.
 
   * Real-time instrument scripts:
     - Added method ScriptVM::setExitResultEnabled() which allows to
@@ -242,6 +276,51 @@
       "change_amp_lfo_depth()", "change_cutoff_lfo_depth()" and
       "change_pitch_lfo_depth()", to allow e.g. passing value 2000000 to double
       the LFO frequency / resonance / cutoff frequency.
+    - Reduced code involved for parsing NKSP variable declarations by using 2
+      generalized grammar rules with optional components (i.e. optional value
+      assignment and optional variable qualifiers) instead of previous linear
+      combinations of grammar rules, which also fixes some edge case.
+    - NKSP language parser: track code block locations also by a) raw byte
+      position in NKSP source code string and b) length of that code block in
+      bytes (along to the already existing code block tracking by line/column);
+      and added appropriate new members to public C++ API classes like
+      'firstByte' and 'lengthBytes' to class VMSourceToken and struct CodeBlock.
+    - NKSP language: Added support for 'patch' variable qualifier (capture their
+      locations and allow replacement of their assignment expression via VM C++
+      API).
+    - Fixed incorrect EG times if standard measuring unit was passed to built-in
+      functions "change_attack()", "change_decay()" or "change_release()".
+    - Fixed intermediate function result values never having reflected any
+      standard measuring unit type.
+    - Fixed re-entrant issue with function calls which caused wrong result
+      values if the same function was called multiple times in a term
+      (specifically if metric prefixes were used).
+    - NKSP language: Just throw a warning, not an error if an array variable of
+      size zero was declared.
+    - NKSP language: Allow omitting explicit array size on array variable
+      declaration if combined with immediate value assignment
+      (e.g. declare %foo[] := ( 1, 2, 3 ) ).
+    - NKSP language: emit warning if an array variable was declared with bigger
+      array size than amount of initial values been assigned, and initialize the
+      missing array elements with zero in this case.
+    - Fixed built-in NKSP exit() function to behave as return statement.
+    - NKSP parser: Fixed crash if unary '-' operator was used on a non-number
+      data type.
+    - NKSP VM: Fixed the "release" handler being executed too often under
+      certain situations if polyphonic data was passed from "note" handler to
+      "release" handler.
+    - Fixed memory leak in NKSP parser: string tokens were allocated as C
+      strings and never freed.
+    - Fixed incorrect polyphonic data transfer from wrong note handler to
+      release handler; which also fixes no release handler being executed
+      sometimes, and due to the latter it also fixes potential crashes as some
+      polyphonic script events were never released and the engine hence was
+      running out of free script events.
+    - Fixed crash when handling array results of built-in functions
+      (e.g. "num_elements(by_marks($MARK_1)").
+    - NKSP VM: Fixed dead note events not been removed from user's event groups
+      (i.e. causing incorrect behaviour of built-in NKSP functions by_marks()
+      and set_event_mark() after max. size of event group list was exhausted).
 
   * test cases:
     - Fixed compiler errors in test cases.
@@ -267,6 +346,7 @@
       "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
     - Added NKSP test cases for unary '+' operator.
     - Added NKSP test cases for core built-in variables.
+    - Added thorough NKSP test cases for variable declarations.
 
   * GigaStudio/Gigasampler format engine:
     - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
@@ -289,10 +369,15 @@
     - If minimum cutoff is defined, remap cutoff controller CC values to really
       span the entire possible cutoff range (and avoiding a dead controller
       zone).
+    - Implemented support for loading instrument scripts with 'patch' variables
+      (by patching these script variables with potentially overridden ones by
+      gig Instrument).
 
   * SFZ format engine:
     - Fixed support for regions with loccN/hiccN conditions on more than one
       MIDI controller.
+    - Fixed internal opcode 'xfin_hivel' falsely being set by user opcode
+      'xfin_lovel' (patch by Christian Czezatke).
 
   * Benchmarks:
     - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"