77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
#include "Runtime.h"
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#include "Path.h"
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static const std::initializer_list<const char *> Font_Extensions = {"", ".ttf", ".otf"};
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static const std::initializer_list<const char *> Shader_Extensions = {"", ".glsl"};
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static std::string System_Runtime_Dir;
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void Runtime::init(const char * executable_path, const char * appname)
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{
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System_Runtime_Dir = Path::join(Path::dirname(Path::dirname(executable_path)), "share", appname);
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}
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std::string Runtime::find(Type t, const std::string & name)
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{
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if (Path::is_file(name))
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{
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return name;
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}
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switch (t)
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{
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case FONT:
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return find_first_under("fonts", name, Font_Extensions, true);
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case SHADER:
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return find_first_under("shaders", name, Shader_Extensions);
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}
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return "";
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}
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std::string Runtime::find_first_under(const std::string & runtime_subpath,
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const std::string & name,
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const std::initializer_list<const char *> & extensions,
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bool look_in_subdirs)
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{
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std::string system_runtime_path = Path::join(System_Runtime_Dir, runtime_subpath);
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std::string first = find_first_in(system_runtime_path, name, extensions);
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if (first.empty() && look_in_subdirs)
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{
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auto dir_ents = Path::listdir(system_runtime_path);
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for (auto dir_ent : *dir_ents)
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{
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if ((*dir_ent)[0] != '.')
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{
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std::string subpath = Path::join(system_runtime_path, *dir_ent);
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if (Path::is_dir(subpath))
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{
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std::string p = find_first_in(subpath, name, extensions);
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if (!p.empty())
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{
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return p;
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}
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}
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}
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}
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}
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return first;
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}
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std::string Runtime::find_first_in(const std::string & path,
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const std::string & name,
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const std::initializer_list<const char *> & extensions)
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{
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for (auto ext : extensions)
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{
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std::string attempt_path = Path::join(path, name + ext);
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if (Path::is_file(attempt_path))
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{
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return attempt_path;
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}
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}
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return "";
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}
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