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