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| Re: AngelScript - AngelCode Scripting Library [message #34366 is a reply to message #34364] |
Fri, 18 November 2011 17:37   |
Sender Ghost
Messages: 301
Registered: November 2008
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Senior Member |
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Also, I tested AngelScript with bindings for two cases:
1:
Toggle Spoiler
double calculate()
{
double x, y, sum = 0;
for(x = 0; x < 1; x += 0.001)
for(y = 0; y < 1; y += 0.001)
sum += 1 / (1 - x * y + x - y);
return sum;
}
CONSOLE_APP_MAIN
{
// ...
// Create the AngelScript engine
asIScriptEngine *engine = asCreateScriptEngine(ANGELSCRIPT_VERSION);
if(engine == 0)
{
Cout() << "Failed to create AngelScript engine.\n";
SetExitCode(1);
return;
}
engine->RegisterGlobalFunction("double calculate()", asFUNCTION(calculate), asCALL_CDECL);
const String script =
"double compute() {\n"
" return calculate();\n"
"}";
asIScriptModule *mod = engine->GetModule("script", asGM_ALWAYS_CREATE);
if(mod->AddScriptSection("script", ~script, script.GetCount()) < 0) {
Cout() << "AddScriptSection() failed\n";
engine->Release();
SetExitCode(1);
return;
}
if(mod->Build() < 0) {
Cout() << "Build() failed\n";
engine->Release();
SetExitCode(1);
return;
}
// Create a context that will execute the script.
asIScriptContext *ctx = engine->CreateContext();
if(ctx == 0) {
Cout() << "Failed to create the context.\n";
ctx->Release();
engine->Release();
SetExitCode(1);
return;
}
// Find the function id for the function we want to execute.
int funcId = engine->GetModule("script")->GetFunctionIdByDecl("double compute()");
if(funcId < 0) {
Cout() << "The function \"compute\" wasn't found.\n";
ctx->Release();
engine->Release();
SetExitCode(1);
return;
}
{
RTIMING("AngelScript (interpreted with binding)");
double sum = 0;
if(ctx->Prepare(funcId) < 0) {
Cout() << "Failed to prepare the context.\n";
SetExitCode(1);
ctx->Release();
engine->Release();
return;
}
if(ctx->Execute() == asEXECUTION_FINISHED)
sum = ctx->GetReturnDouble();
RDUMP(sum);
}
ctx->Release();
engine->Release();
}
With following results:
1 / (1 - x * y + x - y) = -0.01851851852
fn->Execute() = -0.01851851852
sum = 5190404.858
sum = 5190404.858
sum = 5190404.858
sum = 5190404.858
TIMING AngelScript (interpreted with binding): 16.00 ms - 16.00 ms (16.00 ms / 1 ), min: 16.00 ms, max: 16.00 ms, nesting: 1 - 1
TIMING Direct : 13.00 ms - 13.00 ms (13.00 ms / 1 ), min: 13.00 ms, max: 13.00 ms, nesting: 1 - 1
TIMING Compiled : 53.00 ms - 53.00 ms (53.00 ms / 1 ), min: 53.00 ms, max: 53.00 ms, nesting: 1 - 1
TIMING Interpreted : 800.00 ms - 800.00 ms (800.00 ms / 1 ), min: 800.00 ms, max: 800.00 ms, nesting: 1 - 1
2:
Toggle Spoiler
double calculate(double x, double y)
{
return 1 / (1 - x * y + x - y);
}
CONSOLE_APP_MAIN
{
// ...
// Create the AngelScript engine
asIScriptEngine *engine = asCreateScriptEngine(ANGELSCRIPT_VERSION);
if(engine == 0)
{
Cout() << "Failed to create AngelScript engine.\n";
SetExitCode(1);
return;
}
engine->RegisterGlobalFunction("double calculate(double, double)", asFUNCTION(calculate), asCALL_CDECL);
const String script =
"double compute() {\n"
" double x, y, sum = 0;\n"
" for (x = 0; x < 1; x += 0.001)\n"
" for (y = 0; y < 1; y += 0.001)\n"
" sum += calculate(x, y);\n"
" return sum;\n"
"}";
asIScriptModule *mod = engine->GetModule("script", asGM_ALWAYS_CREATE);
if(mod->AddScriptSection("script", ~script, script.GetCount()) < 0) {
Cout() << "AddScriptSection() failed\n";
engine->Release();
SetExitCode(1);
return;
}
if(mod->Build() < 0) {
Cout() << "Build() failed\n";
engine->Release();
SetExitCode(1);
return;
}
// Create a context that will execute the script.
asIScriptContext *ctx = engine->CreateContext();
if(ctx == 0) {
Cout() << "Failed to create the context.\n";
ctx->Release();
engine->Release();
SetExitCode(1);
return;
}
// Find the function id for the function we want to execute.
int funcId = engine->GetModule("script")->GetFunctionIdByDecl("double compute()");
if(funcId < 0) {
Cout() << "The function \"compute\" wasn't found.\n";
ctx->Release();
engine->Release();
SetExitCode(1);
return;
}
{
RTIMING("AngelScript (fully interpreted with binding)");
double sum = 0;
if(ctx->Prepare(funcId) < 0) {
Cout() << "Failed to prepare the context.\n";
SetExitCode(1);
ctx->Release();
engine->Release();
return;
}
if(ctx->Execute() == asEXECUTION_FINISHED)
sum = ctx->GetReturnDouble();
RDUMP(sum);
}
ctx->Release();
engine->Release();
}
With following results:
1 / (1 - x * y + x - y) = -0.01851851852
fn->Execute() = -0.01851851852
sum = 5190404.858
sum = 5190404.858
sum = 5190404.858
sum = 5190404.858
TIMING AngelScript (fully interpreted with binding): 170.00 ms - 170.00 ms (170.00 ms / 1 ), min: 170.00 ms, max: 170.00 ms, nesting: 1 - 1
TIMING Direct : 14.00 ms - 14.00 ms (14.00 ms / 1 ), min: 14.00 ms, max: 14.00 ms, nesting: 1 - 1
TIMING Compiled : 54.00 ms - 54.00 ms (54.00 ms / 1 ), min: 54.00 ms, max: 54.00 ms, nesting: 1 - 1
TIMING Interpreted : 793.00 ms - 793.00 ms (793.00 ms / 1 ), min: 793.00 ms, max: 793.00 ms, nesting: 1 - 1
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