#include <windows.h>
+#include <string.h>
+#include "kgsdk/Framework2D.h"
+#include "kgsdk/FrameworkAudio.h"
+#include "../common/emu.h"
+#include "../common/lprintf.h"
+#include "../common/arm_utils.h"
#include "emu.h"
+#include "menu.h"
+#include "giz.h"
+#include "asm_utils.h"
+#include <Pico/PicoInt.h>
+
+#ifdef BENCHMARK
+#define OSD_FPS_X 220
+#else
+#define OSD_FPS_X 260
+#endif
+
+// main 300K gfx-related buffer. Used by menu and renderers.
+unsigned char gfx_buffer[321*240*2*2];
char romFileName[MAX_PATH];
int engineState;
-currentConfig_t currentConfig;
-unsigned char *rom_data = NULL;
-unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer
-int state_slot = 0;
+unsigned char *PicoDraw2FB = gfx_buffer; // temporary buffer for alt renderer ( (8+320)*(8+240+8) )
int reset_timing = 0;
-int config_slot = 0, config_slot_current = 0;
-
-
-
-
-int emu_ReloadRom(void){}
-void emu_Init(void){}
-void emu_Deinit(void){}
-int emu_SaveLoadGame(int load, int sram){}
-void emu_Loop(void){}
-void emu_ResetGame(void){}
-int emu_ReadConfig(int game, int no_defaults){}
-int emu_WriteConfig(int game){}
-char *emu_GetSaveFName(int load, int is_sram, int slot){}
-int emu_check_save_file(int slot){}
-void emu_set_save_cbs(int gz){}
-void emu_forced_frame(void){}
-int emu_cd_check(int *pregion){}
-int find_bios(int region, char **bios_file){}
-void scaling_update(void){}
+
+static DWORD noticeMsgTime = 0;
+static int osd_fps_x;
+
+
+static void blit(const char *fps, const char *notice);
+static void clearArea(int full);
+
+void emu_noticeMsgUpdated(void)
+{
+ noticeMsgTime = GetTickCount();
+}
+
+void emu_getMainDir(char *dst, int len)
+{
+ if (len > 0) *dst = 0;
+}
+
+static void emu_msg_cb(const char *msg)
+{
+ if (giz_screen == NULL)
+ giz_screen = Framework2D_LockBuffer();
+
+ memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
+ emu_textOut16(4, 232, msg);
+ noticeMsgTime = GetTickCount() - 2000;
+
+ /* assumption: emu_msg_cb gets called only when something slow is about to happen */
+ reset_timing = 1;
+}
+
+static void emu_state_cb(const char *str)
+{
+ clearArea(0);
+ blit("", str);
+}
+
+static void emu_msg_tray_open(void)
+{
+ strcpy(noticeMsg, "CD tray opened");
+ noticeMsgTime = GetTickCount();
+}
+
+
+void emu_Init(void)
+{
+ // make dirs for saves, cfgs, etc.
+ CreateDirectory(L"mds", NULL);
+ CreateDirectory(L"srm", NULL);
+ CreateDirectory(L"brm", NULL);
+ CreateDirectory(L"cfg", NULL);
+
+ PicoInit();
+ PicoMessage = emu_msg_cb;
+ PicoMCDopenTray = emu_msg_tray_open;
+ PicoMCDcloseTray = menu_loop_tray;
+}
+
+void emu_Deinit(void)
+{
+ // save SRAM
+ if((currentConfig.EmuOpt & 1) && SRam.changed) {
+ emu_SaveLoadGame(0, 1);
+ SRam.changed = 0;
+ }
+
+ if (!(currentConfig.EmuOpt & 0x20)) {
+ FILE *f = fopen(PicoConfigFile, "r+b");
+ if (!f) emu_WriteConfig(0);
+ else {
+ // if we already have config, reload it, except last ROM
+ fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);
+ fread(¤tConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);
+ fseek(f, 0, SEEK_SET);
+ fwrite(¤tConfig, 1, sizeof(currentConfig), f);
+ fflush(f);
+ fclose(f);
+ }
+ }
+
+ PicoExit();
+}
+
+void emu_setDefaultConfig(void)
+{
+ memset(¤tConfig, 0, sizeof(currentConfig));
+ currentConfig.lastRomFile[0] = 0;
+ currentConfig.EmuOpt = 0x1f | 0x600; // | confirm_save, cd_leds
+ currentConfig.PicoOpt = 0x0f | 0xc00; // | cd_pcm, cd_cdda
+ currentConfig.PsndRate = 22050;
+ currentConfig.PicoRegion = 0; // auto
+ currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP
+ currentConfig.Frameskip = -1; // auto
+ currentConfig.volume = 50;
+ currentConfig.KeyBinds[ 2] = 1<<0; // SACB RLDU
+ currentConfig.KeyBinds[ 3] = 1<<1;
+ currentConfig.KeyBinds[ 0] = 1<<2;
+ currentConfig.KeyBinds[ 1] = 1<<3;
+ currentConfig.KeyBinds[ 5] = 1<<4;
+ currentConfig.KeyBinds[ 6] = 1<<5;
+ currentConfig.KeyBinds[ 7] = 1<<6;
+ currentConfig.KeyBinds[ 8] = 1<<7;
+ currentConfig.KeyBinds[ 4] = 1<<26; // switch rend
+ currentConfig.KeyBinds[ 8] = 1<<27; // save state
+ currentConfig.KeyBinds[ 9] = 1<<28; // load state
+ currentConfig.KeyBinds[12] = 1<<29; // vol up
+ currentConfig.KeyBinds[11] = 1<<30; // vol down
+ currentConfig.PicoCDBuffers = 64;
+ currentConfig.scaling = 0;
+}
+
+
+static int EmuScan16(unsigned int num, void *sdata)
+{
+ if (!(Pico.video.reg[1]&8)) num += 8;
+ DrawLineDest = (unsigned short *) giz_screen + 321*(num+1);
+
+ return 0;
+}
+
+static int EmuScan8(unsigned int num, void *sdata)
+{
+ // draw like the fast renderer
+ if (!(Pico.video.reg[1]&8)) num += 8;
+ HighCol = gfx_buffer + 328*8 + 328*(num+1);
+
+ return 0;
+}
+
+static void osd_text(int x, int y, const char *text)
+{
+ int len = strlen(text) * 8;
+ int *p, i, h;
+ len = (len+1) >> 1;
+ for (h = 0; h < 8; h++) {
+ p = (int *) ((unsigned short *) giz_screen+x+321*(y+h));
+ p = (int *) ((int)p & ~3); // align
+ for (i = len; i; i--, p++) *p = 0;
+ }
+ emu_textOut16(x, y, text);
+}
+
+
+short localPal[0x100];
+static void (*vidCpy8to16)(void *dest, void *src, short *pal, int lines) = NULL;
+
+static void blit(const char *fps, const char *notice)
+{
+ int emu_opt = currentConfig.EmuOpt;
+
+ if (PicoOpt&0x10) {
+ // 8bit fast renderer
+ if (Pico.m.dirtyPal) {
+ Pico.m.dirtyPal = 0;
+ vidConvCpyRGB565(localPal, Pico.cram, 0x40);
+ }
+ vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, 224);
+ } else if (!(emu_opt&0x80)) {
+ // 8bit accurate renderer
+ if (Pico.m.dirtyPal) {
+ Pico.m.dirtyPal = 0;
+ vidConvCpyRGB565(localPal, Pico.cram, 0x40);
+ if(Pico.video.reg[0xC]&8) { // shadow/hilight mode
+ //vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
+ //vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); // TODO
+ blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);
+ localPal[0xc0] = 0x0600;
+ localPal[0xd0] = 0xc000;
+ localPal[0xe0] = 0x0000; // reserved pixels for OSD
+ localPal[0xf0] = 0xffff;
+ }
+ /* no support
+ else if (rendstatus & 0x20) { // mid-frame palette changes
+ vidConvCpyRGB565(localPal+0x40, HighPal, 0x40);
+ vidConvCpyRGB565(localPal+0x80, HighPal+0x40, 0x40);
+ } */
+ }
+ // TODO...
+ vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, 224);
+ }
+
+ if (notice || (emu_opt & 2)) {
+ int h = 232;
+ if (notice) osd_text(4, h, notice);
+ if (emu_opt & 2) osd_text(osd_fps_x, h, fps);
+ }
+// if ((emu_opt & 0x400) && (PicoMCD & 1))
+// cd_leds();
+
+ //gp2x_video_wait_vsync();
+
+ if (!(PicoOpt&0x10)) {
+ if (Pico.video.reg[1] & 8) {
+ if (currentConfig.EmuOpt&0x80)
+ DrawLineDest = (unsigned short *) giz_screen;
+ else
+ HighCol = gfx_buffer;
+ } else {
+ if (currentConfig.EmuOpt&0x80)
+ DrawLineDest = (unsigned short *) giz_screen + 320*8;
+ else
+ HighCol = gfx_buffer + 328*8;
+ }
+ }
+}
+
+// clears whole screen or just the notice area (in all buffers)
+static void clearArea(int full)
+{
+ if (giz_screen == NULL)
+ giz_screen = Framework2D_LockBuffer();
+ if (full) memset32(giz_screen, 0, 320*240*2/4);
+ else memset32((int *)((char *)giz_screen + 320*232*2), 0, 320*8*2/4);
+}
+
+static void vidResetMode(void)
+{
+ void *screen;
+ if (PicoOpt&0x10) {
+ } else if (currentConfig.EmuOpt&0x80) {
+ PicoDrawSetColorFormat(1);
+ PicoScan = EmuScan16;
+ } else {
+ PicoDrawSetColorFormat(0);
+ PicoScan = EmuScan8;
+ }
+ if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
+ // setup pal for 8-bit modes
+ localPal[0xc0] = 0x0600;
+ localPal[0xd0] = 0xc000;
+ localPal[0xe0] = 0x0000; // reserved pixels for OSD
+ localPal[0xf0] = 0xffff;
+ }
+ Pico.m.dirtyPal = 1;
+ screen = Framework2D_LockBuffer();
+ memset32(screen, 0, 320*240*2/4);
+ Framework2D_UnlockBuffer();
+ giz_screen = NULL;
+}
+
+
+static void SkipFrame(int do_audio)
+{
+ PicoSkipFrame=do_audio ? 1 : 2;
+ PicoFrame();
+ PicoSkipFrame=0;
+}
+
+void emu_forcedFrame(void)
+{
+ // TODO
+}
+
+static void updateKeys(void)
+{
+}
+
+static void simpleWait(DWORD until)
+{
+}
+
+void emu_Loop(void)
+{
+ //static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;
+ char fpsbuff[24]; // fps count c string
+ DWORD tval, tval_prev = 0, tval_thissec = 0; // timing
+ int frames_done = 0, frames_shown = 0, oldmodes = 0;
+ int target_fps, target_frametime, lim_time, tval_diff, i;
+ char *notice = NULL;
+
+ lprintf("entered emu_Loop()\n");
+
+ fpsbuff[0] = 0;
+
+ // make sure we are in correct mode
+ vidResetMode();
+ if (currentConfig.scaling) PicoOpt|=0x4000;
+ else PicoOpt&=~0x4000;
+ Pico.m.dirtyPal = 1;
+ oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
+ //find_combos(); // TODO
+
+ // pal/ntsc might have changed, reset related stuff
+ target_fps = Pico.m.pal ? 50 : 60;
+ target_frametime = (1000<<8)/target_fps;
+ reset_timing = 1;
+
+ // prepare sound stuff
+/* if (currentConfig.EmuOpt & 4) {
+ int snd_excess_add;
+ if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) {
+ sound_rerate(Pico.m.frame_count ? 1 : 0);
+ }
+ snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
+ lprintf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
+ PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
+ gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);
+ gp2x_sound_volume(currentConfig.volume, currentConfig.volume);
+ PicoWriteSound = updateSound;
+ memset(sndBuffer, 0, sizeof(sndBuffer));
+ PsndOut = sndBuffer;
+ PsndRate_old = PsndRate;
+ PsndLen_real = PsndLen;
+ PicoOpt_old = PicoOpt;
+ pal_old = Pico.m.pal;
+ } else*/ {
+ PsndOut = 0;
+ }
+
+ // prepare CD buffer
+ if (PicoMCD & 1) PicoCDBufferInit();
+
+ // loop?
+ while (engineState == PGS_Running)
+ {
+ int modes;
+
+ tval = GetTickCount();
+ if (reset_timing || tval < tval_prev) {
+ reset_timing = 0;
+ tval_thissec = tval;
+ frames_shown = frames_done = 0;
+ }
+
+ // show notice message?
+ if (noticeMsgTime) {
+ static int noticeMsgSum;
+ if (tval - noticeMsgTime > 2000) { // > 2.0 sec
+ noticeMsgTime = 0;
+ clearArea(0);
+ notice = 0;
+ } else {
+ int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
+ if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
+ notice = noticeMsg;
+ }
+ }
+
+ // check for mode changes
+ modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
+ if (modes != oldmodes) {
+ osd_fps_x = OSD_FPS_X;
+ //if (modes & 4)
+ vidCpy8to16 = vidCpy8to16_40;
+ //else
+ // vidCpy8to16 = vidCpy8to16_32col;
+ oldmodes = modes;
+ clearArea(1);
+ }
+
+ // second passed?
+ if (tval - tval_thissec >= 1000)
+ {
+#ifdef BENCHMARK
+ static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
+ if(++bench == 10) {
+ bench = 0;
+ bench_fps_s = bench_fps;
+ bf[bfp++ & 3] = bench_fps;
+ bench_fps = 0;
+ }
+ bench_fps += frames_shown;
+ sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
+#else
+ if(currentConfig.EmuOpt & 2)
+ sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
+#endif
+ tval_thissec = tval;
+
+ if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
+ frames_done = frames_shown = 0;
+ } else {
+ // it is quite common for this implementation to leave 1 fame unfinished
+ // when second changes, but we don't want buffer to starve.
+ if (PsndOut && frames_done < target_fps && frames_done > target_fps-5) {
+ updateKeys();
+ SkipFrame(1); frames_done++;
+ }
+
+ frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
+ frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
+ if (frames_shown > frames_done) frames_shown = frames_done;
+ }
+ }
+#ifdef PFRAMES
+ sprintf(fpsbuff, "%i", Pico.m.frame_count);
+#endif
+
+ tval_prev = tval;
+ lim_time = (frames_done+1) * target_frametime;
+ if (currentConfig.Frameskip >= 0) // frameskip enabled
+ {
+ for (i = 0; i < currentConfig.Frameskip; i++) {
+ updateKeys();
+ SkipFrame(1); frames_done++;
+ if (PsndOut) { // do framelimitting if sound is enabled
+ int tval_diff;
+ tval = GetTickCount();
+ tval_diff = (int)(tval - tval_thissec) << 8;
+ if (tval_diff < lim_time) // we are too fast
+ simpleWait(tval + ((lim_time - tval_diff)>>8));
+ }
+ lim_time += target_frametime;
+ }
+ }
+ else // auto frameskip
+ {
+ int tval_diff;
+ tval = GetTickCount();
+ tval_diff = (int)(tval - tval_thissec) << 8;
+ if (tval_diff > lim_time)
+ {
+ // no time left for this frame - skip
+ if (tval_diff - lim_time >= (300<<8)) {
+ /* something caused a slowdown for us (disk access? cache flush?)
+ * try to recover by resetting timing... */
+ reset_timing = 1;
+ continue;
+ }
+ updateKeys();
+ SkipFrame(tval_diff < lim_time+target_frametime*2); frames_done++;
+ continue;
+ }
+ }
+
+ updateKeys();
+
+ if (giz_screen == NULL)
+ giz_screen = Framework2D_LockBuffer();
+
+ PicoFrame();
+ blit(fpsbuff, notice);
+
+ if (giz_screen != NULL) {
+ Framework2D_UnlockBuffer();
+ giz_screen = NULL;
+ }
+
+ // check time
+ tval = GetTickCount();
+ tval_diff = (int)(tval - tval_thissec) << 8;
+
+ if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300<<8)) // slowdown detection
+ reset_timing = 1;
+ else if (PsndOut != NULL || currentConfig.Frameskip < 0)
+ {
+ // sleep if we are still too fast
+ if (tval_diff < lim_time)
+ {
+ // we are too fast
+ simpleWait(tval + ((lim_time - tval_diff) >> 8));
+ }
+ }
+
+ frames_done++; frames_shown++;
+ }
+
+
+ if (PicoMCD & 1) PicoCDBufferFree();
+
+ // save SRAM
+ if ((currentConfig.EmuOpt & 1) && SRam.changed) {
+ emu_state_cb("Writing SRAM/BRAM..");
+ emu_SaveLoadGame(0, 1);
+ SRam.changed = 0;
+ }
+}
+
+
+void emu_ResetGame(void)
+{
+ PicoReset(0);
+ reset_timing = 1;
+}
notaz.gp2x.de / picodrive.git / blobdiff