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LibVideo: Add MotionVector lookup tables as constant expressions

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This changes MotionVector by removing the cpp file and moving all
functions to the header, where they are now declared as constexpr
so that they can be compile-time evaluated in LookupTables.h.
This commit is contained in:
Zaggy1024 2022-10-08 22:50:35 -05:00 • committed by Andrew Kaster
parent 1dc4652683
commit 6c648329c4
5 changed files with 87 additions and 44 deletions
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6
Userland/Libraries/LibVideo/VP9/Parser.cpp
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@ -1190,7 +1190,7 @@ DecoderErrorOr<void> Parser::read_ref_frames()
DecoderErrorOr<void> Parser::assign_mv(bool is_compound)
{
m_mv[1] = 0;
m_mv[1] = {};
for (auto i = 0; i < 1 + is_compound; i++) {
if (m_y_mode == NewMv) {
TRY(read_mv(i));
@ -1199,7 +1199,7 @@ DecoderErrorOr<void> Parser::assign_mv(bool is_compound)
} else if (m_y_mode == NearMv) {
m_mv[i] = m_near_mv[i];
} else {
m_mv[i] = 0;
m_mv[i] = {};
}
}
return {};
@ -1213,7 +1213,7 @@ DecoderErrorOr<void> Parser::read_mv(u8 ref)
if (mv_joint == MvJointHzvnz || mv_joint == MvJointHnzvnz)
diff_mv.set_row(TRY(read_mv_component(0)));
if (mv_joint == MvJointHnzvz || mv_joint == MvJointHnzvnz)
diff_mv.set_col(TRY(read_mv_component(1)));
diff_mv.set_column(TRY(read_mv_component(1)));
m_mv[ref] = m_best_mv[ref] + diff_mv;
return {};
}