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HID: Added static asserts to check register position in shared memory.
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1 changed files with 16 additions and 2 deletions
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@ -89,7 +89,7 @@ struct TouchDataEntry {
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* Structure of data stored in HID shared memory
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*/
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struct SharedMem {
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// Offset 0x0 : "PAD" data, this is used for buttons and the circle pad
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// "Pad data, this is used for buttons and the circle pad
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struct {
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s64 index_reset_ticks;
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s64 index_reset_ticks_previous;
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@ -105,7 +105,7 @@ struct SharedMem {
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std::array<PadDataEntry, 8> entries; // Pad state history
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} pad;
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// Offset 0xA8 : Touchpad data, this is used for touchpad input
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// Touchpad data, this is used for touchpad input
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struct {
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s64 index_reset_ticks;
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s64 index_reset_ticks_previous;
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@ -117,6 +117,20 @@ struct SharedMem {
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} touch;
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};
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// TODO: MSVC does not support using offsetof() on non-static data members even though this
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// is technically allowed since C++11. This macro should be enabled once MSVC adds
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// support for that.
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#ifndef _MSC_VER
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#define ASSERT_REG_POSITION(field_name, position) \
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static_assert(offsetof(SharedMem, field_name) == position * 4, \
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"Field "#field_name" has invalid position")
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ASSERT_REG_POSITION(pad.index_reset_ticks, 0x0);
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ASSERT_REG_POSITION(touch.index_reset_ticks, 0x2A);
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#undef ASSERT_REG_POSITION
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#endif // !defined(_MSC_VER)
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// Pre-defined PadStates for single button presses
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const PadState PAD_NONE = {{0}};
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const PadState PAD_A = {{1u << 0}};
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