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System: Frame pacing improvements

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This commit is contained in:
Connor McLaughlin 2020-03-24 00:21:11 +10:00
parent cbb9b96537
commit 40d6be7142
2 changed files with 5 additions and 10 deletions
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11
src/core/gpu.cpp
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@ -36,7 +36,6 @@ bool GPU::Initialize(HostDisplay* host_display, System* system, DMA* dma, Interr
void GPU::UpdateSettings()
{
m_force_progressive_scan = m_system->GetSettings().display_force_progressive_scan;
UpdateCRTCConfig();
}
void GPU::Reset()
@ -336,7 +335,6 @@ void GPU::UpdateCRTCConfig()
const float vertical_frequency =
static_cast<float>(static_cast<double>((u64(MASTER_CLOCK) * 11) / 7) / static_cast<double>(ticks_per_frame));
m_system->SetThrottleFrequency(vertical_frequency);
m_tick_event->SetInterval(cs.horizontal_total);
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];
@ -431,6 +429,8 @@ void GPU::UpdateCRTCConfig()
Log_DevPrintf("Padding: Left=%u, Top=%u, Right=%u, Bottom=%u", cs.active_display_left, cs.active_display_top,
cs.visible_display_width - cs.active_display_width - cs.active_display_left,
cs.visible_display_height - cs.active_display_height - cs.active_display_top);
UpdateSliceTicks();
}
static TickCount GPUTicksToSystemTicks(TickCount gpu_ticks)
@ -563,16 +563,11 @@ void GPU::Execute(TickCount ticks)
// switch fields for interlaced modes
if (m_GPUSTAT.vertical_interlace)
{
m_GPUSTAT.interlaced_field ^= true;
m_crtc_state.current_scanline = BoolToUInt32(!m_GPUSTAT.interlaced_field);
}
else
{
m_GPUSTAT.interlaced_field = false;
}
}
}
// alternating even line bit in 240-line mode
if (m_GPUSTAT.In480iMode())
@ -666,8 +661,8 @@ void GPU::WriteGP1(u32 value)
{
const bool disable = ConvertToBoolUnchecked(value & 0x01);
Log_DebugPrintf("Display %s", disable ? "disabled" : "enabled");
m_tick_event->InvokeEarly();
m_GPUSTAT.display_disable = disable;
UpdateCRTCConfig();
}
break;

4
src/core/system.cpp
View file

@ -2,6 +2,7 @@
#include "bios.h"
#include "bus.h"
#include "cdrom.h"
#include "common/audio_stream.h"
#include "common/log.h"
#include "common/state_wrapper.h"
#include "controller.h"
@ -457,8 +458,6 @@ void System::UpdateThrottlePeriod()
{
m_throttle_period = static_cast<s32>(1000000000.0 / static_cast<double>(m_throttle_frequency) /
static_cast<double>(GetSettings().emulation_speed));
m_last_throttle_time = 0;
m_throttle_timer.Reset();
}
void System::Throttle()
@ -486,6 +485,7 @@ void System::Throttle()
#endif
m_last_throttle_time = 0;
m_throttle_timer.Reset();
m_host_interface->GetAudioStream()->EmptyBuffers();
}
else if (sleep_time >= MINIMUM_SLEEP_TIME && sleep_time <= m_throttle_period)
{