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#include <mbgl/programs/program_parameters.hpp>
#include <iomanip>
#include <sstream>
namespace mbgl {
ProgramParameters::ProgramParameters(const float pixelRatio,
const bool overdraw,
optional<std::string> cacheDir_)
: defines([&] {
std::ostringstream ss;
ss.imbue(std::locale("C"));
ss.setf(std::ios_base::showpoint);
ss << "#define DEVICE_PIXEL_RATIO " << pixelRatio << std::endl;
if (overdraw) {
ss << "#define OVERDRAW_INSPECTOR" << std::endl;
}
return ss.str();
}()),
cacheDir(std::move(cacheDir_)) {
}
const std::string& ProgramParameters::getDefines() const {
return defines;
}
optional<std::string> ProgramParameters::cachePath(const char* name) const {
if (!cacheDir) {
return {};
} else {
std::ostringstream ss;
ss << *cacheDir << "/com.mapbox.gl.shader." << name << "." << std::setfill('0')
<< std::setw(sizeof(size_t) * 2) << std::hex << std::hash<std::string>()(defines) << ".pbf";
return ss.str();
}
}
ProgramParameters ProgramParameters::withAdditionalDefines(const std::vector<std::string>& additionalDefines) const {
ProgramParameters result(*this);
for (const auto& define : additionalDefines) {
result.defines += define;
result.defines += "\n";
}
return result;
}
} // namespace mbgl
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