SCProg::SCProg(const std::string &src_file)
{
#ifndef __APPLE__
AbstractBuffer * src = new FileBuffer(std::string("./shaders/")+src_file);
d_ready = false;
d_program = glCreateProgram();
d_shader = glCreateShader (GL_COMPUTE_SHADER);
const char * source = (const char *) src->buffer();
int len = strlen(source);
glShaderSource (d_shader,1 , &source, &len);
delete src; // bad
glCompileShader(d_shader);
GLint compileStatus;
GLint compileLogsz;
glGetShaderiv ( d_shader, GL_COMPILE_STATUS, &compileStatus );
glGetShaderiv ( d_shader, GL_INFO_LOG_LENGTH, &compileLogsz );
char *errorLog;
if ( compileStatus == 0 )
{
GLint logRecived;
errorLog = (char *)calloc(compileLogsz,sizeof(char));
glGetShaderInfoLog(d_shader,compileLogsz,&logRecived, errorLog);
std::string e_log(errorLog);
free(errorLog);
LOGE("Compute shader build failed:\n",e_log.c_str());
/*TODO proper cleanup*/
return;
}
glAttachShader(d_program, d_shader);
GLint linkStatus;
GLint linkLogsz;
glLinkProgram (d_program);
glGetProgramiv ( d_program, GL_LINK_STATUS, &linkStatus );
glGetProgramiv ( d_program, GL_INFO_LOG_LENGTH, &linkLogsz);
if ( linkStatus == 0 )
{
GLint logRecived;
errorLog = (char *)calloc(linkLogsz,sizeof(char));
glGetProgramInfoLog(d_program,linkLogsz,&logRecived, errorLog);
std::string e_log(errorLog);
free(errorLog);
LOGE("Compute shader link failed: %s\n",e_log.c_str());
return;
}
#endif
d_ready = true;
}
uint32 TargetManager::TimeToLock(ShipRef ship, SystemEntity *target) const {
EvilNumber scanRes = ship->GetAttribute(AttrScanResolution);
EvilNumber sigRad(500);
if( target->Item().get() != NULL )
if( target->Item()->HasAttribute(AttrSignatureRadius) )
sigRad = target->Item()->GetAttribute(AttrSignatureRadius);
EvilNumber time = ( EvilNumber(40000) / ( scanRes ) ) /( EvilNumber::pow( e_log( sigRad + e_sqrt( sigRad * sigRad + 1) ), 2) );
return static_cast<uint32>(time.get_float() * 1000); // Timer uses ms instead of seconds
}