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desmume
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More efficient frameskip by using NDS_SkipFrame(). Also tried to fix the framerate limiter (maybe we should just revert to the semaphore system and try to make it more precise?).

This commit is contained in:
Luigi__ 2009-04-03 12:19:10 +00:00
parent c3ee047c7e
commit b8a2915c26
1 changed files with 15 additions and 7 deletions
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22
desmume/src/gtk-glade/desmume.cpp
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@ -40,7 +40,7 @@ u8 *desmume_rom_data = NULL;
u32 desmume_last_cycle;
void desmume_init( struct armcpu_memory_iface *arm9_mem_if,
struct armcpu_ctrl_iface **arm9_ctrl_iface,
struct armcpu_ctrl_iface **arm9_ctrl_iface, //ticksPrevFrame = ticksCurFrame;
struct armcpu_memory_iface *arm7_mem_if,
struct armcpu_ctrl_iface **arm7_ctrl_iface)
{
@ -123,6 +123,7 @@ INLINE void desmume_cycle()
Uint32 fps, fps_SecStart, fps_FrameCount;
Uint32 fsFrameCount = 0;
Uint32 ticksPrevFrame = 0, ticksCurFrame = 0;
static void Draw()
{
@ -139,9 +140,15 @@ gboolean EmuLoop(gpointer data)
if(desmume_running()) /* Si on est en train d'executer le programme ... */
{
static int limiter_frame_counter = 0;
// static int limiter_frame_counter = 0;
if(Frameskip == 0)
NDS_SkipFrame(false);
else
NDS_SkipFrame(((fsFrameCount % (Frameskip+1)) == 0) ? false : true);
fsFrameCount++;
fps_FrameCount += Frameskip + 1;
fps_FrameCount++;
if(!fps_SecStart) fps_SecStart = SDL_GetTicks();
if(SDL_GetTicks() - fps_SecStart >= 1000)
{
@ -155,7 +162,7 @@ gboolean EmuLoop(gpointer data)
}
desmume_cycle(); /* Emule ! */
for(i = 0; i < Frameskip; i++) desmume_cycle(); /* cycles supplémentaires pour le frameskip */
//for(i = 0; i < Frameskip; i++) desmume_cycle(); /* cycles supplémentaires pour le frameskip */
Draw();
@ -167,11 +174,12 @@ gboolean EmuLoop(gpointer data)
if(!glade_fps_limiter_disabled)
{
while((ticksCurFrame - ticksPrevFrame) < TICKS_PER_FRAME)
ticksCurFrame = SDL_GetTicks();
if((ticksCurFrame - ticksPrevFrame) < TICKS_PER_FRAME)
while((ticksCurFrame - ticksPrevFrame) < TICKS_PER_FRAME)
ticksCurFrame = SDL_GetTicks();
}
ticksPrevFrame = ticksCurFrame;
ticksPrevFrame = SDL_GetTicks();
/* if ( !glade_fps_limiter_disabled) {
limiter_frame_counter += 1;