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https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 15:27:46 -04:00
experimental thread I/O code, fps counter fix
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@396 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
parent
7b802576b2
commit
da31028324
5 changed files with 251 additions and 103 deletions
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@ -11,6 +11,7 @@
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#include <linux/limits.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <sched.h>
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#include <stdarg.h>
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@ -541,10 +542,10 @@ static void updateKeys(void)
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pl = (acts >> 16) & 1;
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if (kb_combo_keys & (1 << i))
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{
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int u, acts_c = acts & kb_combo_acts;
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int u = i+1, acts_c = acts & kb_combo_acts;
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// let's try to find the other one
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if (acts_c) {
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for (u = i + 1; u < 32; u++)
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for (; u < 32; u++)
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if ( (keys & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {
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allActions[pl] |= acts_c & currentConfig.KeyBinds[u];
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keys &= ~((1 << i) | (1 << u));
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@ -650,25 +651,78 @@ static void simpleWait(int thissec, int lim_time)
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spend_cycles(1024);
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gettimeofday(&tval, 0);
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if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
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if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
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while(tval.tv_usec < lim_time)
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if (tval.tv_usec < lim_time)
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sched_yield();
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while (tval.tv_usec < lim_time)
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{
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spend_cycles(1024);
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gettimeofday(&tval, 0);
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if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
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if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
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}
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}
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#if 0
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static void tga_dump(void)
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{
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#define BYTE unsigned char
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#define WORD unsigned short
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struct
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{
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BYTE IDLength; /* 00h Size of Image ID field */
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BYTE ColorMapType; /* 01h Color map type */
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BYTE ImageType; /* 02h Image type code */
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WORD CMapStart; /* 03h Color map origin */
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WORD CMapLength; /* 05h Color map length */
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BYTE CMapDepth; /* 07h Depth of color map entries */
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WORD XOffset; /* 08h X origin of image */
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WORD YOffset; /* 0Ah Y origin of image */
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WORD Width; /* 0Ch Width of image */
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WORD Height; /* 0Eh Height of image */
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BYTE PixelDepth; /* 10h Image pixel size */
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BYTE ImageDescriptor; /* 11h Image descriptor byte */
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} __attribute__((packed)) TGAHEAD;
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static unsigned short oldscr[320*240];
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FILE *f; char name[128]; int i;
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memset(&TGAHEAD, 0, sizeof(TGAHEAD));
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TGAHEAD.ImageType = 2;
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TGAHEAD.Width = 320;
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TGAHEAD.Height = 240;
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TGAHEAD.PixelDepth = 16;
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TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
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#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
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for (i = 0; i < 320*240; i++)
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if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;
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if (i < 320*240)
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{
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for (i = 0; i < 320*240; i++)
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oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);
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sprintf(name, "%05i.tga", Pico.m.frame_count);
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f = fopen(name, "wb");
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if (!f) { printf("!f\n"); exit(1); }
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fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
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fwrite(oldscr, 1, 320*240*2, f);
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fclose(f);
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}
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}
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#endif
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void emu_Loop(void)
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{
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static int gp2x_old_clock = 200;
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static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;
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char fpsbuff[24]; // fps count c string
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struct timeval tval; // timing
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int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;
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int target_fps, target_frametime, lim_time, vsync_offset, i;
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int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync
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int frames_done, frames_shown, thissec; // actual frames
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int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;
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char *notice = 0;
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printf("entered emu_Loop()\n");
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@ -747,7 +801,10 @@ void emu_Loop(void)
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} else
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vsync_offset = 0;
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// loop?
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frames_done = frames_shown = thissec =
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pframes_done = pframes_shown = pthissec = 0;
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// loop
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while (engineState == PGS_Running)
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{
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int modes;
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@ -755,8 +812,8 @@ void emu_Loop(void)
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gettimeofday(&tval, 0);
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if (reset_timing) {
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reset_timing = 0;
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thissec = tval.tv_sec;
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frames_shown = frames_done = tval.tv_usec/target_frametime;
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pthissec = tval.tv_sec;
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pframes_shown = pframes_done = tval.tv_usec/target_frametime;
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}
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// show notice message?
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@ -816,42 +873,50 @@ void emu_Loop(void)
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sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
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if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
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#endif
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frames_shown = frames_done = 0;
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thissec = tval.tv_sec;
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if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
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frames_done = frames_shown = 0;
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} else {
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// it is quite common for this implementation to leave 1 fame unfinished
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// when second changes, but we don't want buffer to starve.
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if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {
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updateKeys();
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SkipFrame(1); frames_done++;
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}
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frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
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frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
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if (frames_shown > frames_done) frames_shown = frames_done;
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}
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}
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#ifdef PFRAMES
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sprintf(fpsbuff, "%i", Pico.m.frame_count);
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#endif
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lim_time = (frames_done+1) * target_frametime + vsync_offset;
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if(currentConfig.Frameskip >= 0) { // frameskip enabled
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if (pthissec != tval.tv_sec)
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{
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if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
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pframes_done = pframes_shown = 0;
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} else {
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// it is quite common for this implementation to leave 1 fame unfinished
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// when second changes, but we don't want buffer to starve.
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if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {
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updateKeys();
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SkipFrame(1); pframes_done++;
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}
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pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;
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pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;
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if (pframes_shown > pframes_done) pframes_shown = pframes_done;
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}
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pthissec = tval.tv_sec;
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}
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lim_time = (pframes_done+1) * target_frametime + vsync_offset;
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if (currentConfig.Frameskip >= 0) // frameskip enabled
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{
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for(i = 0; i < currentConfig.Frameskip; i++) {
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updateKeys();
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SkipFrame(1); frames_done++;
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SkipFrame(1); pframes_done++; frames_done++;
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if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
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gettimeofday(&tval, 0);
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if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
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if(tval.tv_usec < lim_time) { // we are too fast
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simpleWait(thissec, lim_time);
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if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
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if (tval.tv_usec < lim_time) { // we are too fast
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simpleWait(pthissec, lim_time);
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}
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}
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lim_time += target_frametime;
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}
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} else if(tval.tv_usec > lim_time) { // auto frameskip
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}
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else if (tval.tv_usec > lim_time) // auto frameskip
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{
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// no time left for this frame - skip
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if (tval.tv_usec - lim_time >= 300000) {
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/* something caused a slowdown for us (disk access? cache flush?)
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@ -860,74 +925,16 @@ void emu_Loop(void)
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continue;
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}
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updateKeys();
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SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;
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SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;
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continue;
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}
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updateKeys();
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PicoFrame();
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#if 0
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if (Pico.m.frame_count == 31563) {
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FILE *f;
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f = fopen("ram_p.bin", "wb");
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if (!f) { printf("!f\n"); exit(1); }
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fwrite(Pico.ram, 1, 0x10000, f);
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fclose(f);
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exit(0);
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}
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#endif
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#if 0
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// debug
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{
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#define BYTE unsigned char
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#define WORD unsigned short
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struct
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{
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BYTE IDLength; /* 00h Size of Image ID field */
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BYTE ColorMapType; /* 01h Color map type */
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BYTE ImageType; /* 02h Image type code */
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WORD CMapStart; /* 03h Color map origin */
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WORD CMapLength; /* 05h Color map length */
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BYTE CMapDepth; /* 07h Depth of color map entries */
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WORD XOffset; /* 08h X origin of image */
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WORD YOffset; /* 0Ah Y origin of image */
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WORD Width; /* 0Ch Width of image */
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WORD Height; /* 0Eh Height of image */
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BYTE PixelDepth; /* 10h Image pixel size */
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BYTE ImageDescriptor; /* 11h Image descriptor byte */
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} __attribute__((packed)) TGAHEAD;
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static unsigned short oldscr[320*240];
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FILE *f; char name[128]; int i;
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memset(&TGAHEAD, 0, sizeof(TGAHEAD));
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TGAHEAD.ImageType = 2;
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TGAHEAD.Width = 320;
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TGAHEAD.Height = 240;
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TGAHEAD.PixelDepth = 16;
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TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
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#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
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for (i = 0; i < 320*240; i++)
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if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;
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if (i < 320*240)
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{
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for (i = 0; i < 320*240; i++)
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oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);
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sprintf(name, "%05i.tga", Pico.m.frame_count);
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f = fopen(name, "wb");
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if (!f) { printf("!f\n"); exit(1); }
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fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
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fwrite(oldscr, 1, 320*240*2, f);
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fclose(f);
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}
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}
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#endif
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// check time
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gettimeofday(&tval, 0);
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if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
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if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
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if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection
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reset_timing = 1;
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@ -940,17 +947,18 @@ if (Pico.m.frame_count == 31563) {
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// we are too fast
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if (vsync_offset) {
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if (lim_time - tval.tv_usec > target_frametime/2)
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simpleWait(thissec, lim_time - target_frametime/4);
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simpleWait(pthissec, lim_time - target_frametime/4);
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gp2x_video_wait_vsync();
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} else {
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simpleWait(thissec, lim_time);
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simpleWait(pthissec, lim_time);
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}
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}
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}
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blit(fpsbuff, notice);
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frames_done++; frames_shown++;
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pframes_done++; pframes_shown++;
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frames_done++; frames_shown++;
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}
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change_fast_forward(0);
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@ -976,4 +984,3 @@ void emu_ResetGame(void)
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reset_timing = 1;
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}
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