psp bugfixes, refactoring, stuff
[picodrive.git] / platform / gizmondo / emu.c
index c26013b..73c01dc 100644 (file)
@@ -52,8 +52,8 @@ void emu_getMainDir(char *dst, int len)
 
 static void emu_msg_cb(const char *msg)
 {
-       if (giz_screen == NULL)
-               giz_screen = Framework2D_LockBuffer();
+       if (giz_screen != NULL) Framework2D_UnlockBuffer();
+       giz_screen = Framework2D_LockBuffer(1);
 
        memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
        emu_textOut16(4, 232, msg);
@@ -61,18 +61,23 @@ static void emu_msg_cb(const char *msg)
 
        /* assumption: emu_msg_cb gets called only when something slow is about to happen */
        reset_timing = 1;
+
+       Framework2D_UnlockBuffer();
+       giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1);
 }
 
-static void emu_state_cb(const char *str)
+void emu_stateCb(const char *str)
 {
-       if (giz_screen == NULL)
-               giz_screen = Framework2D_LockBuffer();
+       if (giz_screen != NULL) Framework2D_UnlockBuffer();
+       giz_screen = Framework2D_LockBuffer(1);
 
        clearArea(0);
        blit("", str);
 
        Framework2D_UnlockBuffer();
        giz_screen = NULL;
+
+       Sleep(0); /* yield the CPU, the system may need it */
 }
 
 static void emu_msg_tray_open(void)
@@ -99,7 +104,7 @@ void emu_Init(void)
 void emu_Deinit(void)
 {
        // save SRAM
-       if((currentConfig.EmuOpt & 1) && SRam.changed) {
+       if ((currentConfig.EmuOpt & 1) && SRam.changed) {
                emu_SaveLoadGame(0, 1);
                SRam.changed = 0;
        }
@@ -155,7 +160,7 @@ static int EmuScan16(unsigned int num, void *sdata)
        if (!(Pico.video.reg[1]&8)) num += 8;
        DrawLineDest = (unsigned short *) giz_screen + 321*(num+1);
 
-       if ((currentConfig.EmuOpt&0x4000) && (num&1) == (Pico.m.frame_count&1))
+       if ((currentConfig.EmuOpt&0x4000) && (num&1) == 0) // (Pico.m.frame_count&1))
                return 1; // skip next line
 
        return 0;
@@ -222,7 +227,7 @@ static void blit(const char *fps, const char *notice)
                }
                if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000;
                if (currentConfig.EmuOpt&0x4000)
-                       lines_flags|=(Pico.m.frame_count&1)?0x20000:0x40000;
+                       lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000;
                vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags);
        }
        else if (!(emu_opt&0x80))
@@ -250,7 +255,7 @@ static void blit(const char *fps, const char *notice)
                lines_flags = (Pico.video.reg[1]&8) ? 240 : 224;
                if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000;
                if (currentConfig.EmuOpt&0x4000)
-                       lines_flags|=(Pico.m.frame_count&1)?0x20000:0x40000;
+                       lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000;
                vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags);
        }
 
@@ -268,14 +273,21 @@ static void blit(const char *fps, const char *notice)
 static void clearArea(int full)
 {
        if (giz_screen == NULL)
-               giz_screen = Framework2D_LockBuffer();
+               giz_screen = Framework2D_LockBuffer(1);
        if (full) memset32(giz_screen, 0, 320*240*2/4);
        else      memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
+
+       if (currentConfig.EmuOpt&0x8000) {
+               Framework2D_UnlockBuffer();
+               giz_screen = Framework2D_LockBuffer(0);
+               if (full) memset32(giz_screen, 0, 320*240*2/4);
+               else      memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
+       }
 }
 
 static void vidResetMode(void)
 {
-       giz_screen = Framework2D_LockBuffer();
+       giz_screen = Framework2D_LockBuffer(1);
 
        if (PicoOpt&0x10) {
        } else if (currentConfig.EmuOpt&0x80) {
@@ -295,11 +307,16 @@ static void vidResetMode(void)
        Pico.m.dirtyPal = 1;
 
        memset32(giz_screen, 0, 321*240*2/4);
+       if (currentConfig.EmuOpt&0x8000) {
+               Framework2D_UnlockBuffer();
+               giz_screen = Framework2D_LockBuffer(0);
+               memset32(giz_screen, 0, 321*240*2/4);
+       }
        Framework2D_UnlockBuffer();
        giz_screen = NULL;
 }
 
-
+/*
 #include <stdarg.h>
 static void stdbg(const char *fmt, ...)
 {
@@ -313,7 +330,7 @@ static void stdbg(const char *fmt, ...)
 
        noticeMsgTime = GetTickCount();
 }
-
+*/
 
 static void updateSound(int len)
 {
@@ -323,8 +340,8 @@ static void updateSound(int len)
        PsndOut += len;
        if (PsndOut - snd_cbuff >= snd_cbuf_samples)
        {
-               if (PsndOut - snd_cbuff != snd_cbuf_samples)
-                       stdbg("snd diff is %i, not %i", PsndOut - snd_cbuff, snd_cbuf_samples);
+               //if (PsndOut - snd_cbuff != snd_cbuf_samples)
+               //      stdbg("snd diff is %i, not %i", PsndOut - snd_cbuff, snd_cbuf_samples);
                PsndOut = snd_cbuff;
        }
 }
@@ -337,6 +354,7 @@ static void SkipFrame(void)
        PicoSkipFrame=0;
 }
 
+/* forced frame to front buffer */
 void emu_forcedFrame(void)
 {
        int po_old = PicoOpt;
@@ -347,7 +365,7 @@ void emu_forcedFrame(void)
        currentConfig.EmuOpt |= 0x80;
 
        if (giz_screen == NULL)
-               giz_screen = Framework2D_LockBuffer();
+               giz_screen = Framework2D_LockBuffer(1);
 
        PicoDrawSetColorFormat(1);
        PicoScan = EmuScan16;
@@ -365,31 +383,43 @@ void emu_forcedFrame(void)
 
 static void RunEvents(unsigned int which)
 {
-       if (which & 0x1800) { // save or load (but not both)
+       if (which & 0x1800) // save or load (but not both)
+       {
                int do_it = 1;
+
+               if (PsndOut != NULL)
+                       FrameworkAudio_SetPause(1);
+               if (giz_screen == NULL)
+                       giz_screen = Framework2D_LockBuffer(1);
                if ( emu_checkSaveFile(state_slot) &&
                                (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
                                 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save
                {
                        int keys;
-                       if (giz_screen == NULL)
-                               giz_screen = Framework2D_LockBuffer();
                        blit("", (which & 0x1000) ? "LOAD STATE? (PLAY=yes, STOP=no)" : "OVERWRITE SAVE? (PLAY=yes, STOP=no)");
                        while( !((keys = Framework_PollGetButtons()) & (BTN_PLAY|BTN_STOP)) )
                                Sleep(50);
                        if (keys & BTN_STOP) do_it = 0;
+                       while(  ((keys = Framework_PollGetButtons()) & (BTN_PLAY|BTN_STOP)) ) // wait for release
+                               Sleep(50);
                        clearArea(0);
                }
-               if (do_it) {
+
+               if (do_it)
+               {
                        osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
-                       PicoStateProgressCB = emu_state_cb;
+                       PicoStateProgressCB = emu_stateCb;
                        emu_SaveLoadGame((which & 0x1000) >> 12, 0);
                        PicoStateProgressCB = NULL;
+                       Sleep(0);
                }
 
+               if (PsndOut != NULL)
+                       FrameworkAudio_SetPause(0);
                reset_timing = 1;
        }
-       if (which & 0x0400) { // switch renderer
+       if (which & 0x0400) // switch renderer
+       {
                if (PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |=  0x80; }
                else              { PicoOpt|= 0x10; currentConfig.EmuOpt &= ~0x80; }
 
@@ -405,7 +435,8 @@ static void RunEvents(unsigned int which)
 
                noticeMsgTime = GetTickCount();
        }
-       if (which & 0x0300) {
+       if (which & 0x0300)
+       {
                if(which&0x0200) {
                        state_slot -= 1;
                        if(state_slot < 0) state_slot = 9;
@@ -472,7 +503,7 @@ static void updateKeys(void)
                        if (vol >   0) vol--;
                }
                FrameworkAudio_SetVolume(vol, vol);
-               sprintf(noticeMsg, "VOL: %02i", vol);
+               sprintf(noticeMsg, "VOL: %02i ", vol);
                noticeMsgTime = GetTickCount();
                currentConfig.volume = vol;
        }
@@ -560,10 +591,11 @@ void emu_Loop(void)
        PsndOut = NULL;
        if (currentConfig.EmuOpt & 4)
        {
-               int ret, snd_excess_add, stereo=(PicoOpt&8)>>3;
+               int ret, snd_excess_add, stereo;
                if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) {
-                       sound_rerate(Pico.m.frame_count ? 1 : 0);
+                       PsndRerate(Pico.m.frame_count ? 1 : 0);
                }
+               stereo=(PicoOpt&8)>>3;
                snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
                snd_cbuf_samples = (PsndRate<<stereo) * 16 / target_fps;
                lprintf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
@@ -593,7 +625,7 @@ void emu_Loop(void)
 
                tval = GetTickCount();
                if (reset_timing || tval < tval_prev) {
-                       stdbg("timing reset");
+                       //stdbg("timing reset");
                        reset_timing = 0;
                        tval_thissec = tval;
                        frames_shown = frames_done = 0;
@@ -665,7 +697,7 @@ void emu_Loop(void)
                                audio_skew_prev = audio_skew;
                                target_frametime += adj;
                                sec_ms = (target_frametime * target_fps) >> 8;
-                               stdbg("%i %i %i", audio_skew, adj, sec_ms);
+                               //stdbg("%i %i %i", audio_skew, adj, sec_ms);
                                frames_done = frames_shown = 0;
                        }
                        else if (currentConfig.Frameskip < 0) {
@@ -719,18 +751,17 @@ void emu_Loop(void)
 
                updateKeys();
 
-               if (giz_screen == NULL && (currentConfig.EmuOpt&0x80))
-                       giz_screen = Framework2D_LockBuffer();
+               if (currentConfig.EmuOpt&0x80)
+                       /* be sure correct framebuffer is locked */
+                       giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1);
+
                if (!(PicoOpt&0x10))
                        PicoScan((unsigned) -1, NULL);
 
                PicoFrame();
 
-               if (currentConfig.EmuOpt&0x2000)
-                       Framework2D_WaitVSync();
-
                if (giz_screen == NULL)
-                       giz_screen = Framework2D_LockBuffer();
+                       giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1);
 
                blit(fpsbuff, notice);
 
@@ -739,6 +770,12 @@ void emu_Loop(void)
                        giz_screen = NULL;
                }
 
+               if (currentConfig.EmuOpt&0x2000)
+                       Framework2D_WaitVSync();
+
+               if (currentConfig.EmuOpt&0x8000)
+                       Framework2D_Flip();
+
                // check time
                tval = GetTickCount();
                tval_diff = (int)(tval - tval_thissec) << 8;
@@ -768,7 +805,7 @@ void emu_Loop(void)
 
        // save SRAM
        if ((currentConfig.EmuOpt & 1) && SRam.changed) {
-               emu_state_cb("Writing SRAM/BRAM..");
+               emu_stateCb("Writing SRAM/BRAM..");
                emu_SaveLoadGame(0, 1);
                SRam.changed = 0;
        }