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GPU: Add Fast GPU Time Option.

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This commit is contained in:
Fernando Sahmkow
2020-04-20 13:20:52 -04:00
parent 18a88d19dc
commit b8aef40c56
7 changed files with 21 additions and 1 deletions
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6
src/video_core/gpu.cpp
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@@ -9,6 +9,7 @@
#include "core/core_timing_util.h"
#include "core/frontend/emu_window.h"
#include "core/memory.h"
#include "core/settings.h"
#include "video_core/engines/fermi_2d.h"
#include "video_core/engines/kepler_compute.h"
#include "video_core/engines/kepler_memory.h"
@@ -154,7 +155,10 @@ u64 GPU::GetTicks() const {
constexpr u64 gpu_ticks_den = 625;
const u64 cpu_ticks = system.CoreTiming().GetTicks();
const u64 nanoseconds = Core::Timing::CyclesToNs(cpu_ticks).count();
u64 nanoseconds = Core::Timing::CyclesToNs(cpu_ticks).count();
if (Settings::values.use_fast_gpu_time) {
nanoseconds /= 256;
}
const u64 nanoseconds_num = nanoseconds / gpu_ticks_den;
const u64 nanoseconds_rem = nanoseconds % gpu_ticks_den;
return nanoseconds_num * gpu_ticks_num + (nanoseconds_rem * gpu_ticks_num) / gpu_ticks_den;