/**
* Initializes a program and stores it in the programs hash. If the program already
* has been loaded before, the program use count is incremented.
*
* @param name Name of the shader program.
*
* @return Shader program.
*/
Program *loadProgram(String const &name)
{
if (programs.contains(name))
{
programs[name]->useCount++;
return programs[name];
}
std::unique_ptr<Program> prog(new Program);
prog->shaderName = name;
prog->def = &ClientApp::shaders()[name].valueAsRecord(); // for lookups later
LOG_RES_VERBOSE("Loading model shader \"%s\"") << name;
// Bind the mandatory common state.
ClientApp::shaders().build(*prog, name);
DENG2_FOR_PUBLIC_AUDIENCE2(NewProgram, i)
{
i->newProgramCreated(*prog);
}
void writeIfModified()
{
if(!file || !arch) return;
// If modified, the archive is written back to the file.
if(arch->modified())
{
LOG_RES_MSG("Updating archive in ") << file->description();
// Make sure we have either a compressed or uncompressed version of
// each entry in memory before destroying the source file.
arch->cache();
file->clear();
Writer(*file) << *arch;
file->flush();
}
else
{
LOG_RES_VERBOSE("Not updating archive in %s (not changed)") << file->description();
}
}