thirdparty/ppsspp
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Ignore unreasonable timestep values.

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This fixes #5202 (Crisis Core stuttering) and improves Mana Khemia's "Who
are you?" sound effect while loading savedata.  May also improve Monster
Hunter's similar issue.
This commit is contained in:
Unknown W. Brackets 2014-01-24 23:55:19 -08:00
parent 7f995647a3
commit 10454654bf
1 changed files with 6 additions and 2 deletions
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8
Core/HLE/sceDisplay.cpp
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@ -430,7 +430,10 @@ static float timestepSmooth[8] = {
static int timestepNext = 0;
static float CalculateSmoothTimestep(float lastTimestep) {
timestepSmooth[timestepNext] = lastTimestep;
// Straight up ignore timesteps that would cause sub-10 fps speeds.
if (lastTimestep < 1.001f / 10.0f) {
timestepSmooth[timestepNext] = lastTimestep;
}
timestepNext = (timestepNext + 1) % ARRAY_SIZE(timestepSmooth);
float summed = 0.0f;
@ -562,7 +565,8 @@ void hleEnterVblank(u64 userdata, int cyclesLate) {
// We flip only if the framebuffer was dirty. This eliminates flicker when using
// non-buffered rendering. The interaction with frame skipping seems to need
// some work.
if (gpu->FramebufferDirty()) {
// But, let's flip at least once every 10 frames if possible, since there may be sound effects.
if (gpu->FramebufferDirty() || (g_Config.iRenderingMode != 0 && numVBlanksSinceFlip >= 10)) {
if (g_Config.iShowFPSCounter && g_Config.iShowFPSCounter < 4) {
CalculateFPS();
}