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authorJeff Brown <jeffbrown@google.com>2011-03-04 13:07:49 -0800
committerJeff Brown <jeffbrown@google.com>2011-03-04 18:53:32 -0800
commit3a22fa057091cd6614f58ebc57a7ce4fe29462bb (patch)
tree974dcf7edb5668a7cffd7aa629c4ccc95ed5a99f /libs/ui/KeyLayoutMap.cpp
parent06b0e5899525330119f27f0f7d9898db6f73e0e2 (diff)
Joystick tweaks.
Ensure that the joystick can always reach -1.0, 0.0 and 1.0 positions even when noise filtering is applied. (Bug: 3514510) Add support for a few more standard axes. Add additional mapping modes for axes. Some axes are inverted from standard interpretation or are actually intended to be split into two distict axes such as left/right trigger controls or accelerator/brake. Add key layout file for a G25 racing wheel and XBox 360 controller to tweak behavior. They work fine without them but the axis mappings are not ideal. Change-Id: Id4c86a0a272331c680039a9bde6815bb7eba44ab
Diffstat (limited to 'libs/ui/KeyLayoutMap.cpp')
-rw-r--r--libs/ui/KeyLayoutMap.cpp97
1 files changed, 85 insertions, 12 deletions
diff --git a/libs/ui/KeyLayoutMap.cpp b/libs/ui/KeyLayoutMap.cpp
index 2ed0e66e1c1c..8626a03bf872 100644
--- a/libs/ui/KeyLayoutMap.cpp
+++ b/libs/ui/KeyLayoutMap.cpp
@@ -113,20 +113,23 @@ status_t KeyLayoutMap::findScanCodesForKey(int32_t keyCode, Vector<int32_t>* out
return NO_ERROR;
}
-status_t KeyLayoutMap::mapAxis(int32_t scanCode, int32_t* axis) const {
+status_t KeyLayoutMap::mapAxis(int32_t scanCode, AxisInfo* outAxisInfo) const {
ssize_t index = mAxes.indexOfKey(scanCode);
if (index < 0) {
#if DEBUG_MAPPING
LOGD("mapAxis: scanCode=%d ~ Failed.", scanCode);
#endif
- *axis = -1;
return NAME_NOT_FOUND;
}
- *axis = mAxes.valueAt(index);
+ *outAxisInfo = mAxes.valueAt(index);
#if DEBUG_MAPPING
- LOGD("mapAxis: scanCode=%d ~ Result axis=%d.", scanCode, *axis);
+ LOGD("mapAxis: scanCode=%d ~ Result mode=%d, axis=%d, highAxis=%d, "
+ "splitValue=%d, flatOverride=%d.",
+ scanCode,
+ outAxisInfo->mode, outAxisInfo->axis, outAxisInfo->highAxis,
+ outAxisInfo->splitValue, outAxisInfo->flatOverride);
#endif
return NO_ERROR;
}
@@ -249,19 +252,89 @@ status_t KeyLayoutMap::Parser::parseAxis() {
return BAD_VALUE;
}
+ AxisInfo axisInfo;
+
mTokenizer->skipDelimiters(WHITESPACE);
- String8 axisToken = mTokenizer->nextToken(WHITESPACE);
- int32_t axis = getAxisByLabel(axisToken.string());
- if (axis < 0) {
- LOGE("%s: Expected axis label, got '%s'.", mTokenizer->getLocation().string(),
- axisToken.string());
- return BAD_VALUE;
+ String8 token = mTokenizer->nextToken(WHITESPACE);
+ if (token == "invert") {
+ axisInfo.mode = AxisInfo::MODE_INVERT;
+
+ mTokenizer->skipDelimiters(WHITESPACE);
+ String8 axisToken = mTokenizer->nextToken(WHITESPACE);
+ axisInfo.axis = getAxisByLabel(axisToken.string());
+ if (axisInfo.axis < 0) {
+ LOGE("%s: Expected inverted axis label, got '%s'.",
+ mTokenizer->getLocation().string(), axisToken.string());
+ return BAD_VALUE;
+ }
+ } else if (token == "split") {
+ axisInfo.mode = AxisInfo::MODE_SPLIT;
+
+ mTokenizer->skipDelimiters(WHITESPACE);
+ String8 splitToken = mTokenizer->nextToken(WHITESPACE);
+ axisInfo.splitValue = int32_t(strtol(splitToken.string(), &end, 0));
+ if (*end) {
+ LOGE("%s: Expected split value, got '%s'.",
+ mTokenizer->getLocation().string(), splitToken.string());
+ return BAD_VALUE;
+ }
+
+ mTokenizer->skipDelimiters(WHITESPACE);
+ String8 lowAxisToken = mTokenizer->nextToken(WHITESPACE);
+ axisInfo.axis = getAxisByLabel(lowAxisToken.string());
+ if (axisInfo.axis < 0) {
+ LOGE("%s: Expected low axis label, got '%s'.",
+ mTokenizer->getLocation().string(), lowAxisToken.string());
+ return BAD_VALUE;
+ }
+
+ mTokenizer->skipDelimiters(WHITESPACE);
+ String8 highAxisToken = mTokenizer->nextToken(WHITESPACE);
+ axisInfo.highAxis = getAxisByLabel(highAxisToken.string());
+ if (axisInfo.highAxis < 0) {
+ LOGE("%s: Expected high axis label, got '%s'.",
+ mTokenizer->getLocation().string(), highAxisToken.string());
+ return BAD_VALUE;
+ }
+ } else {
+ axisInfo.axis = getAxisByLabel(token.string());
+ if (axisInfo.axis < 0) {
+ LOGE("%s: Expected axis label, 'split' or 'invert', got '%s'.",
+ mTokenizer->getLocation().string(), token.string());
+ return BAD_VALUE;
+ }
+ }
+
+ for (;;) {
+ mTokenizer->skipDelimiters(WHITESPACE);
+ if (mTokenizer->isEol()) {
+ break;
+ }
+ String8 keywordToken = mTokenizer->nextToken(WHITESPACE);
+ if (keywordToken == "flat") {
+ mTokenizer->skipDelimiters(WHITESPACE);
+ String8 flatToken = mTokenizer->nextToken(WHITESPACE);
+ axisInfo.flatOverride = int32_t(strtol(flatToken.string(), &end, 0));
+ if (*end) {
+ LOGE("%s: Expected flat value, got '%s'.",
+ mTokenizer->getLocation().string(), flatToken.string());
+ return BAD_VALUE;
+ }
+ } else {
+ LOGE("%s: Expected keyword 'flat', got '%s'.",
+ mTokenizer->getLocation().string(), keywordToken.string());
+ return BAD_VALUE;
+ }
}
#if DEBUG_PARSER
- LOGD("Parsed axis: scanCode=%d, axis=%d.", scanCode, axis);
+ LOGD("Parsed axis: scanCode=%d, mode=%d, axis=%d, highAxis=%d, "
+ "splitValue=%d, flatOverride=%d.",
+ scanCode,
+ axisInfo.mode, axisInfo.axis, axisInfo.highAxis,
+ axisInfo.splitValue, axisInfo.flatOverride);
#endif
- mMap->mAxes.add(scanCode, axis);
+ mMap->mAxes.add(scanCode, axisInfo);
return NO_ERROR;
}