/[svn]/linuxsampler/trunk/src/scriptvm/CoreVMFunctions.cpp
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Diff of /linuxsampler/trunk/src/scriptvm/CoreVMFunctions.cpp

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revision 2620 by schoenebeck, Wed Jun 11 13:31:27 2014 UTC revision 2972 by schoenebeck, Fri Jul 22 14:37:34 2016 UTC
# Line 1  Line 1 
1  /*  /*
2   * Copyright (c) 2014 Christian Schoenebeck   * Copyright (c) 2014-2015 Christian Schoenebeck
3   *   *
4   * http://www.linuxsampler.org   * http://www.linuxsampler.org
5   *   *
# Line 17  Line 17 
17    
18  namespace LinuxSampler {  namespace LinuxSampler {
19    
20    ///////////////////////////////////////////////////////////////////////////
21    // class VMEmptyResultFunction
22    
23  VMFnResult* VMEmptyResultFunction::errorResult() {  VMFnResult* VMEmptyResultFunction::errorResult() {
24      result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED);      result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED);
25      return &result;      return &result;
# Line 27  VMFnResult* VMEmptyResultFunction::succe Line 30  VMFnResult* VMEmptyResultFunction::succe
30      return &result;      return &result;
31  }  }
32    
33    ///////////////////////////////////////////////////////////////////////////
34    // class VMIntResultFunction
35    
36  VMFnResult* VMIntResultFunction::errorResult(int i) {  VMFnResult* VMIntResultFunction::errorResult(int i) {
37      result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED);      result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED);
38      result.value = i;      result.value = i;
# Line 39  VMFnResult* VMIntResultFunction::success Line 45  VMFnResult* VMIntResultFunction::success
45      return &result;      return &result;
46  }  }
47    
48    ///////////////////////////////////////////////////////////////////////////
49    // class VMStringResultFunction
50    
51  VMFnResult* VMStringResultFunction::errorResult(const String& s) {  VMFnResult* VMStringResultFunction::errorResult(const String& s) {
52      result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED);      result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED);
53      result.value = s;      result.value = s;
# Line 51  VMFnResult* VMStringResultFunction::succ Line 60  VMFnResult* VMStringResultFunction::succ
60      return &result;      return &result;
61  }  }
62    
63    ///////////////////////////////////////////////////////////////////////////
64    // built-in script function:  message()
65    
66  bool CoreVMFunction_message::acceptsArgType(int iArg, ExprType_t type) const {  bool CoreVMFunction_message::acceptsArgType(int iArg, ExprType_t type) const {
67      return type == INT_EXPR || type == STRING_EXPR;      return type == INT_EXPR || type == STRING_EXPR;
68  }  }
# Line 73  VMFnResult* CoreVMFunction_message::exec Line 85  VMFnResult* CoreVMFunction_message::exec
85      return errorResult();      return errorResult();
86  }  }
87    
88    ///////////////////////////////////////////////////////////////////////////
89    // built-in script function:  exit()
90    
91  VMFnResult* CoreVMFunction_exit::exec(VMFnArgs* args) {  VMFnResult* CoreVMFunction_exit::exec(VMFnArgs* args) {
92      this->result.flags = STMT_ABORT_SIGNALLED;      this->result.flags = STMT_ABORT_SIGNALLED;
93      return &result;      return &result;
94  }  }
95    
96    ///////////////////////////////////////////////////////////////////////////
97    // built-in script function:  wait()
98    
99  VMFnResult* CoreVMFunction_wait::exec(VMFnArgs* args) {  VMFnResult* CoreVMFunction_wait::exec(VMFnArgs* args) {
100      ExecContext* ctx = dynamic_cast<ExecContext*>(vm->currentVMExecContext());      ExecContext* ctx = dynamic_cast<ExecContext*>(vm->currentVMExecContext());
101      VMIntExpr* expr = dynamic_cast<VMIntExpr*>(args->arg(0));      VMIntExpr* expr = dynamic_cast<VMIntExpr*>(args->arg(0));
102      ctx->suspendMicroseconds = expr->evalInt();      int us = expr->evalInt();
103      this->result.flags = STMT_SUSPEND_SIGNALLED;      if (us < 0) {
104            wrnMsg("wait(): argument may not be negative! Aborting script!");
105            this->result.flags = STMT_ABORT_SIGNALLED;
106        } else if (us == 0) {
107            wrnMsg("wait(): argument may not be zero! Aborting script!");
108            this->result.flags = STMT_ABORT_SIGNALLED;
109        } else {
110            ctx->suspendMicroseconds = us;
111            this->result.flags = STMT_SUSPEND_SIGNALLED;
112        }
113      return &result;      return &result;
114  }  }
115    
116    ///////////////////////////////////////////////////////////////////////////
117    // built-in script function:  abs()
118    
119  bool CoreVMFunction_abs::acceptsArgType(int iArg, ExprType_t type) const {  bool CoreVMFunction_abs::acceptsArgType(int iArg, ExprType_t type) const {
120      return type == INT_EXPR;      return type == INT_EXPR;
121  }  }
# Line 94  VMFnResult* CoreVMFunction_abs::exec(VMF Line 124  VMFnResult* CoreVMFunction_abs::exec(VMF
124      return successResult( ::abs(args->arg(0)->asInt()->evalInt()) );      return successResult( ::abs(args->arg(0)->asInt()->evalInt()) );
125  }  }
126    
127    ///////////////////////////////////////////////////////////////////////////
128    // built-in script function:  random()
129    
130  bool CoreVMFunction_random::acceptsArgType(int iArg, ExprType_t type) const {  bool CoreVMFunction_random::acceptsArgType(int iArg, ExprType_t type) const {
131      return type == INT_EXPR;      return type == INT_EXPR;
132  }  }
# Line 107  VMFnResult* CoreVMFunction_random::exec( Line 140  VMFnResult* CoreVMFunction_random::exec(
140      );      );
141  }  }
142    
143    ///////////////////////////////////////////////////////////////////////////
144    // built-in script function:  num_elements()
145    
146  bool CoreVMFunction_num_elements::acceptsArgType(int iArg, ExprType_t type) const {  bool CoreVMFunction_num_elements::acceptsArgType(int iArg, ExprType_t type) const {
147      return type == INT_ARR_EXPR;      return type == INT_ARR_EXPR;
148  }  }
# Line 115  VMFnResult* CoreVMFunction_num_elements: Line 151  VMFnResult* CoreVMFunction_num_elements:
151      return successResult( args->arg(0)->asIntArray()->arraySize() );      return successResult( args->arg(0)->asIntArray()->arraySize() );
152  }  }
153    
154    ///////////////////////////////////////////////////////////////////////////
155    // built-in script function:  inc()
156    
157    VMFnResult* CoreVMFunction_inc::exec(VMFnArgs* args) {
158        VMExpr* arg = args->arg(0);
159        VMIntExpr* in = dynamic_cast<VMIntExpr*>(arg);
160        VMVariable* out = dynamic_cast<VMVariable*>(arg);
161        if (!in || !out) successResult(0);
162        int i = in->evalInt() + 1;
163        IntLiteral tmp(i);
164        out->assignExpr(&tmp);
165        return successResult(i);
166    }
167    
168    ///////////////////////////////////////////////////////////////////////////
169    // built-in script function:  dec()
170    
171    VMFnResult* CoreVMFunction_dec::exec(VMFnArgs* args) {
172        VMExpr* arg = args->arg(0);
173        VMIntExpr* in = dynamic_cast<VMIntExpr*>(arg);
174        VMVariable* out = dynamic_cast<VMVariable*>(arg);
175        if (!in || !out) successResult(0);
176        int i = in->evalInt() - 1;
177        IntLiteral tmp(i);
178        out->assignExpr(&tmp);
179        return successResult(i);
180    }
181    
182    ///////////////////////////////////////////////////////////////////////////
183    // built-in script function:  sh_left()
184    
185    VMFnResult* CoreVMFunction_sh_left::exec(VMFnArgs* args) {
186        int i = args->arg(0)->asInt()->evalInt();
187        int n = args->arg(1)->asInt()->evalInt();
188        return successResult(i << n);
189    }
190    
191    ///////////////////////////////////////////////////////////////////////////
192    // built-in script function:  sh_right()
193    
194    VMFnResult* CoreVMFunction_sh_right::exec(VMFnArgs* args) {
195        int i = args->arg(0)->asInt()->evalInt();
196        int n = args->arg(1)->asInt()->evalInt();
197        return successResult(i >> n);
198    }
199    
200    ///////////////////////////////////////////////////////////////////////////
201    // built-in script function:  min()
202    
203    VMFnResult* CoreVMFunction_min::exec(VMFnArgs* args) {
204        int l = args->arg(0)->asInt()->evalInt();
205        int r = args->arg(1)->asInt()->evalInt();
206        return successResult(l < r ? l : r);
207    }
208    
209    ///////////////////////////////////////////////////////////////////////////
210    // built-in script function:  max()
211    
212    VMFnResult* CoreVMFunction_max::exec(VMFnArgs* args) {
213        int l = args->arg(0)->asInt()->evalInt();
214        int r = args->arg(1)->asInt()->evalInt();
215        return successResult(l > r ? l : r);
216    }
217    
218  } // namespace LinuxSampler  } // namespace LinuxSampler
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