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GPU: Toggle vblank timer gate for full frame

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Regression from event system. Fixes Ridge Racer.
This commit is contained in:
Connor McLaughlin 2020-01-30 16:18:31 +10:00
parent 288b680e07
commit 88936463d7
1 changed files with 3 additions and 5 deletions
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8
src/core/gpu.cpp
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@ -446,6 +446,7 @@ void GPU::Execute(TickCount ticks)
if (prev_scanline < m_crtc_state.vertical_display_start &&
m_crtc_state.current_scanline >= m_crtc_state.vertical_display_end)
{
m_timers->SetGate(HBLANK_TIMER_INDEX, false);
m_crtc_state.in_vblank = false;
}
@ -453,13 +454,9 @@ void GPU::Execute(TickCount ticks)
m_crtc_state.current_scanline >= m_crtc_state.vertical_display_end;
if (m_crtc_state.in_vblank != new_vblank)
{
m_crtc_state.in_vblank = new_vblank;
if (new_vblank)
{
static u32 x = 0;
Log_DebugPrintf("Now in v-blank %u ticks %u hblanks", m_system->GetGlobalTickCounter() - x);
x = m_system->GetGlobalTickCounter();
Log_DebugPrintf("Now in v-blank");
m_interrupt_controller->InterruptRequest(InterruptController::IRQ::VBLANK);
// flush any pending draws and "scan out" the image
@ -469,6 +466,7 @@ void GPU::Execute(TickCount ticks)
}
m_timers->SetGate(HBLANK_TIMER_INDEX, new_vblank);
m_crtc_state.in_vblank = new_vblank;
}
// past the end of vblank?