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HID parser for udev; Vulkan fixes

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This commit is contained in:
Jack Andersen
2017-09-15 15:55:41 -10:00
parent 1f14cc09a1
commit 175893f055
6 changed files with 175 additions and 46 deletions
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62
lib/inputdev/HIDParser.cpp
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@@ -481,7 +481,8 @@ HIDParser::ParserStatus
HIDParser::ParseItem(HIDReports& reportsOut,
std::stack<HIDItemState>& stateStack,
std::stack<HIDCollectionItem>& collectionStack,
const uint8_t*& it, const uint8_t* end)
const uint8_t*& it, const uint8_t* end,
bool& multipleReports)
{
ParserStatus status = ParserStatus::OK;
uint8_t head = *it++;
@@ -560,7 +561,7 @@ HIDParser::ParseItem(HIDReports& reportsOut,
stateStack.top().m_reportSize = data;
break;
case HIDItemTag::ReportID:
m_multipleReports = true;
multipleReports = true;
stateStack.top().m_reportID = data;
break;
case HIDItemTag::ReportCount:
@@ -620,7 +621,8 @@ HIDParser::ParserStatus HIDParser::Parse(const uint8_t* descriptorData, size_t l
const uint8_t* end = descriptorData + len;
for (const uint8_t* it = descriptorData; it != end;)
if ((m_status = ParseItem(reports, stateStack, collectionStack, it, end)) != ParserStatus::OK)
if ((m_status =
ParseItem(reports, stateStack, collectionStack, it, end, m_multipleReports)) != ParserStatus::OK)
break;
if (m_status != ParserStatus::Done)
@@ -660,6 +662,60 @@ HIDParser::ParserStatus HIDParser::Parse(const uint8_t* descriptorData, size_t l
return m_status;
}
size_t HIDParser::CalculateMaxInputReportSize(const uint8_t* descriptorData, size_t len)
{
std::stack<HIDItemState> stateStack;
stateStack.emplace();
std::stack<HIDCollectionItem> collectionStack;
HIDReports reports;
ParserStatus status = ParserStatus::Done;
bool multipleReports = false;
const uint8_t* end = descriptorData + len;
for (const uint8_t* it = descriptorData; it != end;)
if ((status = ParseItem(reports, stateStack, collectionStack, it, end, multipleReports)) != ParserStatus::OK)
break;
if (status != ParserStatus::Done)
return 0;
size_t maxSize = 0;
for (const auto& rep : reports.m_inputReports)
{
size_t repSize = 0;
for (const auto& item : rep.second)
repSize += item.m_reportSize;
if (repSize > maxSize)
maxSize = repSize;
}
return (maxSize + 7) / 8 + multipleReports;
}
std::pair<HIDUsagePage, HIDUsage> HIDParser::GetApplicationUsage(const uint8_t* descriptorData, size_t len)
{
std::stack<HIDItemState> stateStack;
stateStack.emplace();
std::stack<HIDCollectionItem> collectionStack;
HIDReports reports;
ParserStatus status = ParserStatus::Done;
bool multipleReports = false;
const uint8_t* end = descriptorData + len;
for (const uint8_t* it = descriptorData; it != end;)
{
status = ParseItem(reports, stateStack, collectionStack, it, end, multipleReports);
if (collectionStack.empty())
continue;
if (collectionStack.top().m_type == HIDCollectionType::Application)
return { collectionStack.top().m_usagePage, collectionStack.top().m_usage };
if (status != ParserStatus::OK)
break;
}
return {};
}
#endif
#if _WIN32