psp memhandlers, vsync, stuff
[picodrive.git] / platform / psp / emu.c
index d2eaca7..3f645ed 100644 (file)
@@ -15,7 +15,7 @@
 #include "../common/lprintf.h"
 #include "../../Pico/PicoInt.h"
 
-#define OSD_FPS_X 420
+#define OSD_FPS_X 424
 
 // additional pspaudio imports, credits to crazyc
 int sceAudio_38553111(unsigned short samples, unsigned short freq, char unknown);  // play with conversion?
@@ -35,7 +35,7 @@ int reset_timing = 0; // do we need this?
 
 static void sound_init(void);
 static void sound_deinit(void);
-static void blit2(const char *fps, const char *notice);
+static void blit2(const char *fps, const char *notice, int lagging_behind);
 static void clearArea(int full);
 
 void emu_noticeMsgUpdated(void)
@@ -133,7 +133,7 @@ void emu_setDefaultConfig(void)
        currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP
        currentConfig.Frameskip = -1; // auto
        currentConfig.volume = 50;
-       currentConfig.CPUclock = 222;
+       currentConfig.CPUclock = 333;
        currentConfig.KeyBinds[ 4] = 1<<0; // SACB RLDU
        currentConfig.KeyBinds[ 6] = 1<<1;
        currentConfig.KeyBinds[ 7] = 1<<2;
@@ -142,6 +142,7 @@ void emu_setDefaultConfig(void)
        currentConfig.KeyBinds[13] = 1<<5;
        currentConfig.KeyBinds[15] = 1<<6;
        currentConfig.KeyBinds[ 3] = 1<<7;
+       currentConfig.KeyBinds[12] = 1<<26; // switch rnd
        currentConfig.KeyBinds[ 8] = 1<<27; // save state
        currentConfig.KeyBinds[ 9] = 1<<28; // load state
        currentConfig.PicoCDBuffers = 0;
@@ -206,13 +207,15 @@ static void set_scaling_params(void)
        if (fbimg_yoffs < 0) fbimg_yoffs = 0;
        fbimg_offs = (fbimg_yoffs*512 + fbimg_xoffs) * 2; // dst is always 16bit
 
+       /*
        lprintf("set_scaling_params:\n");
        lprintf("offs: %i, %i\n", fbimg_xoffs, fbimg_yoffs);
        lprintf("xy0, xy1: %i, %i; %i, %i\n", g_vertices[0].x, g_vertices[0].y, g_vertices[1].x, g_vertices[1].y);
        lprintf("uv0, uv1: %i, %i; %i, %i\n", g_vertices[0].u, g_vertices[0].v, g_vertices[1].u, g_vertices[1].v);
+       */
 }
 
-static void do_slowmode_pal(void)
+static void do_pal_update(int allow_sh)
 {
        unsigned int *spal=(void *)Pico.cram;
        unsigned int *dpal=(void *)localPal;
@@ -221,11 +224,11 @@ static void do_slowmode_pal(void)
        for (i = 0x3f/2; i >= 0; i--)
                dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4);
 
-       if (Pico.video.reg[0xC]&8) // shadow/hilight?
+       if (allow_sh && (Pico.video.reg[0xC]&8)) // shadow/hilight?
        {
                // shadowed pixels
                for (i = 0x3f/2; i >= 0; i--)
-                       dpal[0x20|i] = dpal[0x60|i] = (spal[i]>>1)&0x738e738e;
+                       dpal[0x20|i] = dpal[0x60|i] = (dpal[i]>>1)&0x738e738e;
                // hilighted pixels
                for (i = 0x3f; i >= 0; i--) {
                        int t=localPal[i]&0xe71c;t+=0x4208;
@@ -259,7 +262,7 @@ static void EmuScanPrepare(void)
 
        dynamic_palette = 0;
        if (Pico.m.dirtyPal)
-               do_slowmode_pal();
+               do_pal_update(1);
 }
 
 static int EmuScanSlow(unsigned int num, void *sdata)
@@ -271,7 +274,7 @@ static int EmuScanSlow(unsigned int num, void *sdata)
                        do_slowmode_lines(num);
                        dynamic_palette = 1;
                }
-               do_slowmode_pal();
+               do_pal_update(1);
        }
 
        if (dynamic_palette) {
@@ -289,8 +292,6 @@ static void blitscreen_clut(void)
        int offs = fbimg_offs;
        offs += (psp_screen == VRAM_FB0) ? VRAMOFFS_FB0 : VRAMOFFS_FB1;
 
-       sceKernelDcacheWritebackAll();
-
        sceGuSync(0,0); // sync with prev
        sceGuStart(GU_DIRECT, guCmdList);
        sceGuDrawBuffer(GU_PSM_5650, (void *)offs, 512); // point to back buffer
@@ -314,14 +315,9 @@ static void blitscreen_clut(void)
                }
 
                if ((PicoOpt&0x10) && Pico.m.dirtyPal)
-               {
-                       int i, *dpal = (void *)localPal, *spal = (int *)Pico.cram;
-                       for (i = 0x3f/2; i >= 0; i--)
-                               dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4);
-                       localPal[0xe0] = 0;
-                       Pico.m.dirtyPal = 0;
-                       need_pal_upload = 1;
-               }
+                       do_pal_update(0);
+
+               sceKernelDcacheWritebackAll();
 
                if (need_pal_upload) {
                        need_pal_upload = 0;
@@ -365,7 +361,7 @@ static void cd_leds(void)
 
        p = (unsigned int *)((short *)psp_screen + 512*2+4+2);
        col_g = (old_reg & 2) ? 0x06000600 : 0;
-       col_r = (old_reg & 1) ? 0xc000c000 : 0;
+       col_r = (old_reg & 1) ? 0x00180018 : 0;
        *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 512/2 - 12/2;
        *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 512/2 - 12/2;
        *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
@@ -406,11 +402,9 @@ void blit1(void)
 }
 
 
-static void blit2(const char *fps, const char *notice)
+static void blit2(const char *fps, const char *notice, int lagging_behind)
 {
-       int emu_opt = currentConfig.EmuOpt;
-
-       sceGuSync(0,0);
+       int vsync = 0, emu_opt = currentConfig.EmuOpt;
 
        if (notice || (emu_opt & 2)) {
                if (notice)      osd_text(4, notice, 0);
@@ -422,7 +416,11 @@ static void blit2(const char *fps, const char *notice)
        if ((emu_opt & 0x400) && (PicoMCD & 1))
                cd_leds();
 
-       psp_video_flip(0);
+       if (currentConfig.EmuOpt & 0x2000) { // want vsync
+               if (!(currentConfig.EmuOpt & 0x10000) || !lagging_behind) vsync = 1;
+       }
+
+       psp_video_flip(vsync);
 }
 
 // clears whole screen or just the notice area (in all buffers)
@@ -473,8 +471,8 @@ static void vidResetMode(void)
 
 
 /* sound stuff */
-#define SOUND_BLOCK_SIZE_NTSC (2940*2) // 1024 // 1152
-#define SOUND_BLOCK_SIZE_PAL  (3528*2)
+#define SOUND_BLOCK_SIZE_NTSC (1470*2) // 1024 // 1152
+#define SOUND_BLOCK_SIZE_PAL  (1764*2)
 #define SOUND_BLOCK_COUNT    4
 
 static short __attribute__((aligned(4))) sndBuffer[SOUND_BLOCK_SIZE_PAL*SOUND_BLOCK_COUNT + 44100/50*2];
@@ -489,14 +487,15 @@ static int sound_thread(SceSize args, void *argp)
 {
        int ret;
 
-       lprintf("sound_thread: started, priority %i\n", sceKernelGetThreadCurrentPriority());
+       lprintf("sthr: started, priority %i\n", sceKernelGetThreadCurrentPriority());
 
        while (!sound_thread_exit)
        {
                if (samples_made - samples_done < samples_block) {
-                       // wait for data...
-                       //lprintf("sthr: wait... (%i/%i)\n", samples_done, samples_made);
-                       ret = sceKernelWaitSema(sound_sem, 1, 0);
+                       // wait for data (use at least 2 blocks)
+                       //lprintf("sthr: wait... (%i)\n", samples_made - samples_done);
+                       while (samples_made - samples_done <= samples_block*2 && !sound_thread_exit)
+                               ret = sceKernelWaitSema(sound_sem, 1, 0);
                        //lprintf("sthr: sceKernelWaitSema: %i\n", ret);
                        continue;
                }
@@ -511,6 +510,14 @@ static int sound_thread(SceSize args, void *argp)
                        snd_playptr = sndBuffer;
                if (ret)
                        lprintf("sthr: outf: %i; pos %i/%i\n", ret, samples_done, samples_made);
+
+               // shouln't happen, but just in case
+               if (samples_made - samples_done >= samples_block*3) {
+                       //lprintf("block skip (%i)\n", samples_made - samples_done);
+                       samples_done += samples_block; // skip
+                       snd_playptr  += samples_block;
+               }
+
        }
 
        lprintf("sthr: exit\n");
@@ -525,6 +532,8 @@ static void sound_init(void)
        sound_sem = sceKernelCreateSema("sndsem", 0, 0, 1, NULL);
        if (sound_sem < 0) lprintf("sceKernelCreateSema() failed: %i\n", sound_sem);
 
+       samples_made = samples_done = 0;
+       samples_block = SOUND_BLOCK_SIZE_NTSC; // make sure it goes to sema
        sound_thread_exit = 0;
        thid = sceKernelCreateThread("sndthread", sound_thread, 0x12, 0x10000, 0, NULL);
        if (thid >= 0)
@@ -543,13 +552,12 @@ static void sound_prepare(void)
        samples_made = samples_done = 0;
 
        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;
 
        samples_block = Pico.m.pal ? SOUND_BLOCK_SIZE_PAL : SOUND_BLOCK_SIZE_NTSC;
-       if (PsndRate == 22050) samples_block /= 2;
-       else if (PsndRate == 11025) samples_block /= 4;
+       if (PsndRate <= 22050) samples_block /= 2;
        sndBuffer_endptr = &sndBuffer[samples_block*SOUND_BLOCK_COUNT];
 
        lprintf("starting audio: %i, len: %i, stereo: %i, pal: %i, block samples: %i\n",
@@ -577,7 +585,8 @@ static void sound_prepare(void)
 
 static void sound_end(void)
 {
-       while (samples_made - samples_done >= samples_block || sceAudioOutput2GetRestSample() > 0)
+       samples_made = samples_done = 0;
+       while (sceAudioOutput2GetRestSample() > 0)
                psp_msleep(100);
        sceAudio_5C37C0AE();
 }
@@ -586,6 +595,8 @@ static void sound_deinit(void)
 {
        sound_thread_exit = 1;
        sceKernelSignalSema(sound_sem, 1);
+       sceKernelDeleteSema(sound_sem);
+       sound_sem = -1;
 }
 
 static void writeSound(int len)
@@ -605,7 +616,7 @@ static void writeSound(int len)
 
        // signal the snd thread
        samples_made += len;
-       if (samples_made - samples_done >= samples_block) {
+       if (samples_made - samples_done > samples_block*2) {
                // lprintf("signal, %i/%i\n", samples_done, samples_made);
                ret = sceKernelSignalSema(sound_sem, 1);
                // lprintf("signal ret %i\n", ret);
@@ -657,7 +668,8 @@ static void RunEvents(unsigned int which)
                                 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save
                {
                        int keys;
-                       blit2("", (which & 0x1000) ? "LOAD STATE? (X=yes, O=no)" : "OVERWRITE SAVE? (X=yes, O=no)");
+                       sceGuSync(0,0);
+                       blit2("", (which & 0x1000) ? "LOAD STATE? (X=yes, O=no)" : "OVERWRITE SAVE? (X=yes, O=no)", 0);
                        while( !((keys = psp_pad_read(1)) & (BTN_X|BTN_CIRCLE)) )
                                psp_msleep(50);
                        if (keys & BTN_CIRCLE) do_it = 0;
@@ -684,13 +696,10 @@ static void RunEvents(unsigned int which)
 
                vidResetMode();
 
-               if (PicoOpt&0x10) {
-                       strcpy(noticeMsg, " 8bit fast renderer");
-               } else if (currentConfig.EmuOpt&0x80) {
-                       strcpy(noticeMsg, "16bit accurate renderer");
-               } else {
-                       strcpy(noticeMsg, " 8bit accurate renderer");
-               }
+               if (PicoOpt&0x10)
+                       strcpy(noticeMsg, "fast renderer");
+               else if (currentConfig.EmuOpt&0x80)
+                       strcpy(noticeMsg, "accurate renderer");
 
                noticeMsgTime = sceKernelGetSystemTimeLow();
        }
@@ -940,12 +949,10 @@ void emu_Loop(void)
                        int tval_diff;
                        tval = sceKernelGetSystemTimeLow();
                        tval_diff = (int)(tval - tval_thissec) << 8;
-                       if (tval_diff > lim_time)
+                       if (tval_diff > lim_time && (frames_done/16 < frames_shown))
                        {
                                // no time left for this frame - skip
                                if (tval_diff - lim_time >= (300000<<8)) {
-                                       /* something caused a slowdown for us (disk access? cache flush?)
-                                        * try to recover by resetting timing... */
                                        reset_timing = 1;
                                        continue;
                                }
@@ -962,12 +969,14 @@ void emu_Loop(void)
 
                PicoFrame();
 
-               blit2(fpsbuff, notice);
+               sceGuSync(0,0);
 
                // check time
                tval = sceKernelGetSystemTimeLow();
                tval_diff = (int)(tval - tval_thissec) << 8;
 
+               blit2(fpsbuff, notice, tval_diff > lim_time);
+
                if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300000<<8)) // slowdown detection
                        reset_timing = 1;
                else if (PsndOut != NULL || currentConfig.Frameskip < 0)
@@ -998,8 +1007,8 @@ void emu_Loop(void)
                SRam.changed = 0;
        }
 
-       // draw a frame for bg..
-       emu_forcedFrame();
+       // clear fps counters and stuff
+       memset32((int *)psp_video_get_active_fb() + 512*264*2/4, 0, 512*8*2/4);
 }