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/* |
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* Copyright (c) 2014-2019 Christian Schoenebeck |
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* |
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* http://www.linuxsampler.org |
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* |
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* This file is part of LinuxSampler and released under the same terms. |
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* See README file for details. |
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*/ |
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|
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#include "CoreVMFunctions.h" |
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|
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#include <iostream> |
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#include <algorithm> // for std::sort() |
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#include <math.h> |
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#include <stdlib.h> |
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#include "tree.h" |
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#include "ScriptVM.h" |
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#include "../common/RTMath.h" |
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|
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namespace LinuxSampler { |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// class VMEmptyResultFunction |
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|
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VMFnResult* VMEmptyResultFunction::errorResult() { |
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result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED); |
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return &result; |
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} |
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|
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VMFnResult* VMEmptyResultFunction::successResult() { |
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result.flags = STMT_SUCCESS; |
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return &result; |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// class VMIntResultFunction |
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|
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VMFnResult* VMIntResultFunction::errorResult(vmint i) { |
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result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED); |
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result.value = i; |
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return &result; |
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} |
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|
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VMFnResult* VMIntResultFunction::successResult(vmint i) { |
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result.flags = STMT_SUCCESS; |
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result.value = i; |
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return &result; |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// class VMRealResultFunction |
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|
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VMFnResult* VMRealResultFunction::errorResult(vmfloat f) { |
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result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED); |
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result.value = f; |
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return &result; |
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} |
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|
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VMFnResult* VMRealResultFunction::successResult(vmfloat f) { |
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result.flags = STMT_SUCCESS; |
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result.value = f; |
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return &result; |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// class VMStringResultFunction |
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|
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VMFnResult* VMStringResultFunction::errorResult(const String& s) { |
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result.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED); |
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result.value = s; |
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return &result; |
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} |
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|
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VMFnResult* VMStringResultFunction::successResult(const String& s) { |
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result.flags = STMT_SUCCESS; |
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result.value = s; |
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return &result; |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// class VMScalarNumberResultFunction |
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|
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VMFnResult* VMScalarNumberResultFunction::errorResult(vmint i) { |
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intResult.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED); |
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intResult.value = i; |
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return &intResult; |
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} |
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|
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VMFnResult* VMScalarNumberResultFunction::errorResult(vmfloat f) { |
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realResult.flags = StmtFlags_t(STMT_ABORT_SIGNALLED | STMT_ERROR_OCCURRED); |
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realResult.value = f; |
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return &realResult; |
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} |
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|
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VMFnResult* VMScalarNumberResultFunction::successResult(vmint i) { |
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intResult.flags = STMT_SUCCESS; |
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intResult.value = i; |
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return &intResult; |
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} |
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|
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VMFnResult* VMScalarNumberResultFunction::successResult(vmfloat f) { |
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realResult.flags = STMT_SUCCESS; |
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realResult.value = f; |
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return &realResult; |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: message() |
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|
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bool CoreVMFunction_message::acceptsArgType(vmint iArg, ExprType_t type) const { |
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return type == INT_EXPR || type == REAL_EXPR || type == STRING_EXPR; |
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} |
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|
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VMFnResult* CoreVMFunction_message::exec(VMFnArgs* args) { |
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if (!args->argsCount()) return errorResult(); |
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|
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uint64_t usecs = RTMath::unsafeMicroSeconds(RTMath::real_clock); |
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|
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VMStringExpr* strExpr = dynamic_cast<VMStringExpr*>(args->arg(0)); |
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if (strExpr) { |
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printf("[ScriptVM %.3f] %s\n", usecs/1000000.f, strExpr->evalStr().c_str()); |
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return successResult(); |
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} |
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|
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VMRealExpr* realExpr = dynamic_cast<VMRealExpr*>(args->arg(0)); |
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if (realExpr) { |
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printf("[ScriptVM %.3f] %f\n", usecs/1000000.f, realExpr->evalReal()); |
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return successResult(); |
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} |
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|
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VMIntExpr* intExpr = dynamic_cast<VMIntExpr*>(args->arg(0)); |
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if (intExpr) { |
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printf("[ScriptVM %.3f] %lld\n", usecs/1000000.f, (int64_t)intExpr->evalInt()); |
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return successResult(); |
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} |
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|
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return errorResult(); |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: exit() |
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|
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vmint CoreVMFunction_exit::maxAllowedArgs() const { |
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return (vm->isExitResultEnabled()) ? 1 : 0; |
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} |
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|
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bool CoreVMFunction_exit::acceptsArgType(vmint iArg, ExprType_t type) const { |
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if (!vm->isExitResultEnabled()) return false; |
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return type == INT_EXPR || type == REAL_EXPR || type == STRING_EXPR; |
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} |
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|
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VMFnResult* CoreVMFunction_exit::exec(VMFnArgs* args) { |
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this->result.flags = STMT_ABORT_SIGNALLED; |
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if (vm->isExitResultEnabled() && args->argsCount()) { |
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ExecContext* ctx = dynamic_cast<ExecContext*>(vm->currentVMExecContext()); |
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switch (args->arg(0)->exprType()) { |
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case INT_EXPR: |
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ctx->exitRes.intLiteral.value = args->arg(0)->asInt()->evalInt(); |
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ctx->exitRes.value = &ctx->exitRes.intLiteral; |
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break; |
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case REAL_EXPR: |
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ctx->exitRes.realLiteral.value = args->arg(0)->asReal()->evalReal(); |
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ctx->exitRes.value = &ctx->exitRes.realLiteral; |
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break; |
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case STRING_EXPR: |
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ctx->exitRes.stringLiteral.value = args->arg(0)->asString()->evalStr(); |
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ctx->exitRes.value = &ctx->exitRes.stringLiteral; |
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break; |
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default: |
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; // noop - just to shut up the compiler |
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} |
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} |
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return &result; |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: wait() |
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|
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bool CoreVMFunction_wait::acceptsArgUnitType(vmint iArg, StdUnit_t type) const { |
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if (iArg == 0) |
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return type == VM_NO_UNIT || type == VM_SECOND; |
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else |
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return type == VM_NO_UNIT; |
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} |
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|
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bool CoreVMFunction_wait::acceptsArgUnitPrefix(vmint iArg, StdUnit_t type) const { |
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return iArg == 0 && type == VM_SECOND; |
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} |
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|
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VMFnResult* CoreVMFunction_wait::exec(VMFnArgs* args) { |
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ExecContext* ctx = dynamic_cast<ExecContext*>(vm->currentVMExecContext()); |
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VMIntExpr* expr = dynamic_cast<VMIntExpr*>(args->arg(0)); |
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StdUnit_t unit = expr->unitType(); |
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vmint us = (unit) ? expr->evalInt(VM_MICRO) : expr->evalInt(); |
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if (us < 0) { |
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wrnMsg("wait(): argument may not be negative! Aborting script!"); |
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this->result.flags = STMT_ABORT_SIGNALLED; |
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} else if (us == 0) { |
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wrnMsg("wait(): argument may not be zero! Aborting script!"); |
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this->result.flags = STMT_ABORT_SIGNALLED; |
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} else { |
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ctx->suspendMicroseconds = us; |
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this->result.flags = STMT_SUSPEND_SIGNALLED; |
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} |
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return &result; |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: abs() |
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|
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ExprType_t CoreVMFunction_abs::returnType(VMFnArgs* args) { |
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return args->arg(0)->exprType(); |
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} |
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|
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bool CoreVMFunction_abs::acceptsArgType(vmint iArg, ExprType_t type) const { |
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return type == INT_EXPR || type == REAL_EXPR; |
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} |
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|
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VMFnResult* CoreVMFunction_abs::exec(VMFnArgs* args) { |
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VMExpr* arg = args->arg(0); |
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if (arg->exprType() == REAL_EXPR) |
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return successResult( ::fabs(arg->asReal()->evalReal()) ); |
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else |
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return successResult( ::abs(arg->asInt()->evalInt()) ); |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: random() |
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|
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bool CoreVMFunction_random::acceptsArgType(vmint iArg, ExprType_t type) const { |
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return type == INT_EXPR; |
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} |
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|
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VMFnResult* CoreVMFunction_random::exec(VMFnArgs* args) { |
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vmint iMin = args->arg(0)->asInt()->evalInt(); |
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vmint iMax = args->arg(1)->asInt()->evalInt(); |
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float f = float(::rand()) / float(RAND_MAX); |
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return successResult( |
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iMin + roundf( f * float(iMax - iMin) ) |
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); |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: num_elements() |
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|
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bool CoreVMFunction_num_elements::acceptsArgType(vmint iArg, ExprType_t type) const { |
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return type == INT_ARR_EXPR; |
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} |
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|
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VMFnResult* CoreVMFunction_num_elements::exec(VMFnArgs* args) { |
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return successResult( args->arg(0)->asIntArray()->arraySize() ); |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: inc() |
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|
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VMFnResult* CoreVMFunction_inc::exec(VMFnArgs* args) { |
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VMExpr* arg = args->arg(0); |
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VMIntExpr* in = dynamic_cast<VMIntExpr*>(arg); |
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VMVariable* out = dynamic_cast<VMVariable*>(arg); |
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if (!in || !out) successResult(0); |
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vmint i = in->evalInt() + 1; |
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IntLiteral tmp(i); |
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out->assignExpr(&tmp); |
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return successResult(i); |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: dec() |
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|
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VMFnResult* CoreVMFunction_dec::exec(VMFnArgs* args) { |
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VMExpr* arg = args->arg(0); |
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VMIntExpr* in = dynamic_cast<VMIntExpr*>(arg); |
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VMVariable* out = dynamic_cast<VMVariable*>(arg); |
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if (!in || !out) successResult(0); |
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vmint i = in->evalInt() - 1; |
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IntLiteral tmp(i); |
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out->assignExpr(&tmp); |
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return successResult(i); |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: in_range() |
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|
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VMFnResult* CoreVMFunction_in_range::exec(VMFnArgs* args) { |
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vmint i = args->arg(0)->asInt()->evalInt(); |
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vmint lo = args->arg(1)->asInt()->evalInt(); |
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vmint hi = args->arg(2)->asInt()->evalInt(); |
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if (lo > hi) { // swap lo and hi |
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vmint tmp = lo; |
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lo = hi; |
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hi = tmp; |
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} |
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return successResult(i >= lo && i <= hi); |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: sh_left() |
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|
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VMFnResult* CoreVMFunction_sh_left::exec(VMFnArgs* args) { |
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vmint i = args->arg(0)->asInt()->evalInt(); |
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vmint n = args->arg(1)->asInt()->evalInt(); |
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return successResult(i << n); |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: sh_right() |
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|
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VMFnResult* CoreVMFunction_sh_right::exec(VMFnArgs* args) { |
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vmint i = args->arg(0)->asInt()->evalInt(); |
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vmint n = args->arg(1)->asInt()->evalInt(); |
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return successResult(i >> n); |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: min() |
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|
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ExprType_t CoreVMFunction_min::returnType(VMFnArgs* args) { |
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return (args->arg(0)->exprType() == REAL_EXPR || |
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args->arg(1)->exprType() == REAL_EXPR) ? REAL_EXPR : INT_EXPR; |
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} |
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|
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bool CoreVMFunction_min::acceptsArgType(vmint iArg, ExprType_t type) const { |
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return type == INT_EXPR || type == REAL_EXPR; |
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} |
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|
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VMFnResult* CoreVMFunction_min::exec(VMFnArgs* args) { |
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VMExpr* a = args->arg(0); |
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VMExpr* b = args->arg(1); |
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if (a->exprType() == REAL_EXPR && b->exprType() == REAL_EXPR) { |
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vmfloat l = a->asReal()->evalReal(); |
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vmfloat r = b->asReal()->evalReal(); |
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return successResult(l < r ? l : r); |
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} else if (a->exprType() == REAL_EXPR && b->exprType() == INT_EXPR) { |
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vmfloat l = a->asReal()->evalReal(); |
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vmint r = b->asInt()->evalInt(); |
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return successResult(l < r ? l : r); |
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} else if (a->exprType() == INT_EXPR && b->exprType() == REAL_EXPR) { |
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vmint l = a->asInt()->evalInt(); |
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vmfloat r = b->asReal()->evalReal(); |
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return successResult(l < r ? l : r); |
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} else { |
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vmint l = a->asInt()->evalInt(); |
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vmint r = b->asInt()->evalInt(); |
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return successResult(l < r ? l : r); |
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} |
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} |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// built-in script function: max() |
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|
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ExprType_t CoreVMFunction_max::returnType(VMFnArgs* args) { |
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return (args->arg(0)->exprType() == REAL_EXPR || |
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args->arg(1)->exprType() == REAL_EXPR) ? REAL_EXPR : INT_EXPR; |
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} |
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|
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bool CoreVMFunction_max::acceptsArgType(vmint iArg, ExprType_t type) const { |
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return type == INT_EXPR || type == REAL_EXPR; |
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} |
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|
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VMFnResult* CoreVMFunction_max::exec(VMFnArgs* args) { |
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VMExpr* a = args->arg(0); |
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VMExpr* b = args->arg(1); |
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if (a->exprType() == REAL_EXPR && b->exprType() == REAL_EXPR) { |
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vmfloat l = a->asReal()->evalReal(); |
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vmfloat r = b->asReal()->evalReal(); |
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return successResult(l > r ? l : r); |
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} else if (a->exprType() == REAL_EXPR && b->exprType() == INT_EXPR) { |
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vmfloat l = a->asReal()->evalReal(); |
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vmint r = b->asInt()->evalInt(); |
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return successResult(l > r ? l : r); |
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} else if (a->exprType() == INT_EXPR && b->exprType() == REAL_EXPR) { |
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vmint l = a->asInt()->evalInt(); |
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vmfloat r = b->asReal()->evalReal(); |
| 375 |
return successResult(l > r ? l : r); |
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} else { |
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vmint l = a->asInt()->evalInt(); |
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vmint r = b->asInt()->evalInt(); |
| 379 |
return successResult(l > r ? l : r); |
| 380 |
} |
| 381 |
} |
| 382 |
|
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/////////////////////////////////////////////////////////////////////////// |
| 384 |
// built-in script function: array_equal() |
| 385 |
|
| 386 |
VMFnResult* CoreVMFunction_array_equal::exec(VMFnArgs* args) { |
| 387 |
VMIntArrayExpr* l = args->arg(0)->asIntArray(); |
| 388 |
VMIntArrayExpr* r = args->arg(1)->asIntArray(); |
| 389 |
if (l->arraySize() != r->arraySize()) { |
| 390 |
wrnMsg("array_equal(): the two arrays differ in size"); |
| 391 |
return successResult(0); // false |
| 392 |
} |
| 393 |
const vmint n = l->arraySize(); |
| 394 |
for (vmint i = 0; i < n; ++i) |
| 395 |
if (l->evalIntElement(i) != r->evalIntElement(i)) |
| 396 |
return successResult(0); // false |
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return successResult(1); // true |
| 398 |
} |
| 399 |
|
| 400 |
/////////////////////////////////////////////////////////////////////////// |
| 401 |
// built-in script function: search() |
| 402 |
|
| 403 |
ExprType_t CoreVMFunction_search::argType(vmint iArg) const { |
| 404 |
return (iArg == 0) ? INT_ARR_EXPR : INT_EXPR; |
| 405 |
} |
| 406 |
|
| 407 |
bool CoreVMFunction_search::acceptsArgType(vmint iArg, ExprType_t type) const { |
| 408 |
if (iArg == 0) |
| 409 |
return type == INT_ARR_EXPR; |
| 410 |
else |
| 411 |
return type == INT_EXPR; |
| 412 |
} |
| 413 |
|
| 414 |
VMFnResult* CoreVMFunction_search::exec(VMFnArgs* args) { |
| 415 |
VMIntArrayExpr* a = args->arg(0)->asIntArray(); |
| 416 |
const vmint needle = args->arg(1)->asInt()->evalInt(); |
| 417 |
const vmint n = a->arraySize(); |
| 418 |
for (vmint i = 0; i < n; ++i) |
| 419 |
if (a->evalIntElement(i) == needle) |
| 420 |
return successResult(i); |
| 421 |
return successResult(-1); // not found |
| 422 |
} |
| 423 |
|
| 424 |
/////////////////////////////////////////////////////////////////////////// |
| 425 |
// built-in script function: sort() |
| 426 |
|
| 427 |
ExprType_t CoreVMFunction_sort::argType(vmint iArg) const { |
| 428 |
return (iArg == 0) ? INT_ARR_EXPR : INT_EXPR; |
| 429 |
} |
| 430 |
|
| 431 |
bool CoreVMFunction_sort::acceptsArgType(vmint iArg, ExprType_t type) const { |
| 432 |
if (iArg == 0) |
| 433 |
return type == INT_ARR_EXPR; |
| 434 |
else |
| 435 |
return type == INT_EXPR; |
| 436 |
} |
| 437 |
|
| 438 |
struct ArrElemPOD { |
| 439 |
VMIntArrayExpr* m_array; |
| 440 |
vmint m_index; |
| 441 |
}; |
| 442 |
|
| 443 |
static inline void swap(class ArrElemRef a, class ArrElemRef b); |
| 444 |
|
| 445 |
class ArrElemRef : protected ArrElemPOD { |
| 446 |
public: |
| 447 |
ArrElemRef() { |
| 448 |
m_array = NULL; |
| 449 |
m_index = 0; |
| 450 |
} |
| 451 |
ArrElemRef(VMIntArrayExpr* a, vmint index) { |
| 452 |
m_array = a; |
| 453 |
m_index = index; |
| 454 |
} |
| 455 |
inline ArrElemRef& operator=(const ArrElemRef& e) { |
| 456 |
setValue(e.getValue()); |
| 457 |
return *this; |
| 458 |
} |
| 459 |
inline ArrElemRef& operator=(vmint val) { |
| 460 |
setValue(val); |
| 461 |
return *this; |
| 462 |
} |
| 463 |
inline bool operator==(const ArrElemRef& e) const { |
| 464 |
if (m_index == e.m_index) |
| 465 |
return true; |
| 466 |
return getValue() == e.getValue(); |
| 467 |
} |
| 468 |
inline bool operator==(vmint val) const { |
| 469 |
return getValue() == val; |
| 470 |
} |
| 471 |
inline bool operator!=(const ArrElemRef& e) const { |
| 472 |
return !(operator==(e)); |
| 473 |
} |
| 474 |
inline bool operator!=(vmint val) const { |
| 475 |
return !(operator==(val)); |
| 476 |
} |
| 477 |
inline bool operator<(const ArrElemRef& e) const { |
| 478 |
if (m_index == e.m_index) |
| 479 |
return false; |
| 480 |
return getValue() < e.getValue(); |
| 481 |
} |
| 482 |
inline bool operator<(vmint val) const { |
| 483 |
return getValue() < val; |
| 484 |
} |
| 485 |
inline bool operator>(const ArrElemRef& e) const { |
| 486 |
if (m_index == e.m_index) |
| 487 |
return false; |
| 488 |
return getValue() > e.getValue(); |
| 489 |
} |
| 490 |
inline bool operator>(vmint val) const { |
| 491 |
return getValue() > val; |
| 492 |
} |
| 493 |
inline bool operator<=(const ArrElemRef& e) const { |
| 494 |
if (m_index == e.m_index) |
| 495 |
return true; |
| 496 |
return getValue() <= e.getValue(); |
| 497 |
} |
| 498 |
inline bool operator<=(vmint val) const { |
| 499 |
return getValue() <= val; |
| 500 |
} |
| 501 |
inline bool operator>=(const ArrElemRef& e) const { |
| 502 |
if (m_index == e.m_index) |
| 503 |
return true; |
| 504 |
return getValue() >= e.getValue(); |
| 505 |
} |
| 506 |
inline bool operator>=(vmint val) const { |
| 507 |
return getValue() >= val; |
| 508 |
} |
| 509 |
inline operator vmint() const { |
| 510 |
return getValue(); |
| 511 |
} |
| 512 |
protected: |
| 513 |
inline vmint getValue() const { |
| 514 |
return m_array->evalIntElement(m_index); |
| 515 |
} |
| 516 |
inline void setValue(vmint value) { |
| 517 |
m_array->assignIntElement(m_index, value); |
| 518 |
} |
| 519 |
|
| 520 |
friend void swap(class ArrElemRef a, class ArrElemRef b); |
| 521 |
}; |
| 522 |
|
| 523 |
class ArrElemPtr : protected ArrElemPOD { |
| 524 |
public: |
| 525 |
ArrElemPtr() { |
| 526 |
m_array = NULL; |
| 527 |
m_index = 0; |
| 528 |
} |
| 529 |
ArrElemPtr(VMIntArrayExpr* a, vmint index) { |
| 530 |
m_array = a; |
| 531 |
m_index = index; |
| 532 |
} |
| 533 |
inline ArrElemRef operator*() { |
| 534 |
return *(ArrElemRef*)this; |
| 535 |
} |
| 536 |
}; |
| 537 |
|
| 538 |
static inline void swap(ArrElemRef a, ArrElemRef b) { |
| 539 |
vmint valueA = a.getValue(); |
| 540 |
vmint valueB = b.getValue(); |
| 541 |
a.setValue(valueB); |
| 542 |
b.setValue(valueA); |
| 543 |
} |
| 544 |
|
| 545 |
class ArrExprIter : public ArrElemPOD { |
| 546 |
public: |
| 547 |
typedef std::random_access_iterator_tag iterator_category; |
| 548 |
typedef vmint value_type; |
| 549 |
typedef ssize_t difference_type; |
| 550 |
typedef ArrElemPtr pointer; |
| 551 |
typedef ArrElemRef reference; |
| 552 |
|
| 553 |
ArrExprIter(VMIntArrayExpr* a, vmint index) { |
| 554 |
m_array = a; |
| 555 |
m_index = index; |
| 556 |
} |
| 557 |
inline ArrElemRef operator*() { |
| 558 |
return *(ArrElemRef*)this; |
| 559 |
} |
| 560 |
inline ArrExprIter& operator++() { // prefix increment |
| 561 |
++m_index; |
| 562 |
return *this; |
| 563 |
} |
| 564 |
inline ArrExprIter& operator--() { // prefix decrement |
| 565 |
--m_index; |
| 566 |
return *this; |
| 567 |
} |
| 568 |
inline ArrExprIter operator++(int) { // postfix increment |
| 569 |
ArrExprIter it = *this; |
| 570 |
++m_index; |
| 571 |
return it; |
| 572 |
} |
| 573 |
inline ArrExprIter operator--(int) { // postfix decrement |
| 574 |
ArrExprIter it = *this; |
| 575 |
--m_index; |
| 576 |
return it; |
| 577 |
} |
| 578 |
inline ArrExprIter& operator+=(difference_type d) { |
| 579 |
m_index += d; |
| 580 |
return *this; |
| 581 |
} |
| 582 |
inline ArrExprIter& operator-=(difference_type d) { |
| 583 |
m_index -= d; |
| 584 |
return *this; |
| 585 |
} |
| 586 |
inline bool operator==(const ArrExprIter& other) const { |
| 587 |
return m_index == other.m_index; |
| 588 |
} |
| 589 |
inline bool operator!=(const ArrExprIter& other) const { |
| 590 |
return m_index != other.m_index; |
| 591 |
} |
| 592 |
inline bool operator<(const ArrExprIter& other) const { |
| 593 |
return m_index < other.m_index; |
| 594 |
} |
| 595 |
inline bool operator>(const ArrExprIter& other) const { |
| 596 |
return m_index > other.m_index; |
| 597 |
} |
| 598 |
inline bool operator<=(const ArrExprIter& other) const { |
| 599 |
return m_index <= other.m_index; |
| 600 |
} |
| 601 |
inline bool operator>=(const ArrExprIter& other) const { |
| 602 |
return m_index >= other.m_index; |
| 603 |
} |
| 604 |
inline difference_type operator+(const ArrExprIter& other) const { |
| 605 |
return m_index + other.m_index; |
| 606 |
} |
| 607 |
inline difference_type operator-(const ArrExprIter& other) const { |
| 608 |
return m_index - other.m_index; |
| 609 |
} |
| 610 |
inline ArrExprIter operator-(difference_type d) const { |
| 611 |
return ArrExprIter(m_array, m_index - d); |
| 612 |
} |
| 613 |
inline ArrExprIter operator+(difference_type d) const { |
| 614 |
return ArrExprIter(m_array, m_index + d); |
| 615 |
} |
| 616 |
inline ArrExprIter operator*(difference_type factor) const { |
| 617 |
return ArrExprIter(m_array, m_index * factor); |
| 618 |
} |
| 619 |
}; |
| 620 |
|
| 621 |
struct DescArrExprSorter { |
| 622 |
inline bool operator()(const vmint& a, const vmint& b) const { |
| 623 |
return a > b; |
| 624 |
} |
| 625 |
}; |
| 626 |
|
| 627 |
VMFnResult* CoreVMFunction_sort::exec(VMFnArgs* args) { |
| 628 |
VMIntArrayExpr* a = args->arg(0)->asIntArray(); |
| 629 |
bool bAscending = |
| 630 |
(args->argsCount() < 2) ? true : !args->arg(1)->asInt()->evalInt(); |
| 631 |
vmint n = a->arraySize(); |
| 632 |
ArrExprIter itBegin(a, 0); |
| 633 |
ArrExprIter itEnd(a, n); |
| 634 |
if (bAscending) { |
| 635 |
std::sort(itBegin, itEnd); |
| 636 |
} else { |
| 637 |
DescArrExprSorter sorter; |
| 638 |
std::sort(itBegin, itEnd, sorter); |
| 639 |
} |
| 640 |
return successResult(); |
| 641 |
} |
| 642 |
|
| 643 |
/////////////////////////////////////////////////////////////////////////// |
| 644 |
// built-in script function: real_to_int() and int() |
| 645 |
|
| 646 |
VMFnResult* CoreVMFunction_real_to_int::exec(VMFnArgs* args) { |
| 647 |
vmfloat f = args->arg(0)->asReal()->evalReal(); |
| 648 |
return successResult(vmint(f)); |
| 649 |
} |
| 650 |
|
| 651 |
/////////////////////////////////////////////////////////////////////////// |
| 652 |
// built-in script function: int_to_real() and real() |
| 653 |
|
| 654 |
VMFnResult* CoreVMFunction_int_to_real::exec(VMFnArgs* args) { |
| 655 |
vmint i = args->arg(0)->asInt()->evalInt(); |
| 656 |
return successResult(i); |
| 657 |
} |
| 658 |
|
| 659 |
} // namespace LinuxSampler |
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