Attempt to calculate actual refresh rate (i.e. a CPU-GPU synced Mhz), no real success. Anybody have any ideas?

Is there no indication from the game when the screen refresh should occur? No, not what I could find, we currently calculate the refresh rate and m_VBeamPos from the CPU ticks progress. That works perfectly if the CPU and GPU is perfectly synced as in the single core and no-idle skipping mode. So I guess it's possible that the game doesn't indicate when the screen should be refreshed, but rather that the hardware calculate that from the CPU ticks progress. That leaves us with a problem in the dual core and idle skipping modes to calculate a CPU-GPU synced CPU ticks progress.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3447 8ced0084-cf51-0410-be5f-012b33b47a6e

1 files changed, 8 insertions, 5 deletions

diff --git a/Source/Core/AudioCommon/Src/Mixer.cpp b/Source/Core/AudioCommon/Src/Mixer.cpp
index 2e9f54d327..264254e6ed 100644
--- a/Source/Core/AudioCommon/Src/Mixer.cpp
+++ b/Source/Core/AudioCommon/Src/Mixer.cpp
@@ -92,14 +92,16 @@ void CMixer::PushSamples(short *samples, int num_stereo_samples, int core_sample
 
 	// Write Other Audio
 	if (!m_throttle)
-		return;
-	
+		return;	
 	
+	// -----------------------------------------------------------------------	
+	// The auto throttle function. This loop will put a ceiling on the CPU MHz.
+	// ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
 	/* This is only needed for non-AX sound, currently directly
 	   streamed and DTK sound. For AX we call SoundStream::Update in
 	   AXTask() for example. */
-	while (m_queueSize > queue_maxlength / 2) {
-
+	while (m_queueSize > queue_maxlength / 2)
+	{
 		// Urgh.
 		if (g_dspInitialize.pEmulatorState) {
 			if (*g_dspInitialize.pEmulatorState != 0) 
@@ -108,7 +110,8 @@ void CMixer::PushSamples(short *samples, int num_stereo_samples, int core_sample
 		soundStream->Update();
 		Common::SleepCurrentThread(0);
 	}
-	
+	// -----------------------------------------------------------------------
+
 	push_sync.Enter();
 	while (num_stereo_samples) {
 		acc += core_sample_rate;