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GPU: Set throttle frequency based on mode config

This commit is contained in:
Connor McLaughlin 2019-11-16 20:13:53 +10:00
parent 77fe883901
commit 49ab9467df
1 changed files with 4 additions and 0 deletions
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4
src/core/gpu.cpp
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@ -278,6 +278,10 @@ void GPU::UpdateCRTCConfig()
cs.horizontal_total = 3413; cs.horizontal_total = 3413;
} }
const TickCount ticks_per_frame = cs.horizontal_total * cs.vertical_total;
const double vertical_frequency = static_cast<double>((u64(MASTER_CLOCK) * 11) / 7) / static_cast<double>(ticks_per_frame);
m_system->GetHostInterface()->SetThrottleFrequency(vertical_frequency);
const u8 horizontal_resolution_index = m_GPUSTAT.horizontal_resolution_1 | (m_GPUSTAT.horizontal_resolution_2 << 2); const u8 horizontal_resolution_index = m_GPUSTAT.horizontal_resolution_1 | (m_GPUSTAT.horizontal_resolution_2 << 2);
cs.dot_clock_divider = dot_clock_dividers[horizontal_resolution_index]; cs.dot_clock_divider = dot_clock_dividers[horizontal_resolution_index];
cs.horizontal_display_start = static_cast<TickCount>(std::min<u32>(cs.regs.X1, cs.horizontal_total)); cs.horizontal_display_start = static_cast<TickCount>(std::min<u32>(cs.regs.X1, cs.horizontal_total));