-// (c) Copyright 2006 notaz, All rights reserved.\r
+// (c) Copyright 2006-2007 notaz, All rights reserved.\r
// Free for non-commercial use.\r
\r
// For commercial use, separate licencing terms must be obtained.\r
\r
// detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
- ((*(unsigned short *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
+ ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
if (rom_data) free(rom_data);\r
rom_data = 0;\r
sprintf(menuErrorMsg, "Not a ROM selected.");\r
// set default config\r
memset(¤tConfig, 0, sizeof(currentConfig));\r
currentConfig.lastRomFile[0] = 0;\r
- currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds\r
- currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda\r
+ currentConfig.EmuOpt = 0x1f | 0x600; // | confirm_save, cd_leds\r
+ currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940, cd_pcm, cd_cdda\r
currentConfig.PsndRate = 22050; // 44100;\r
currentConfig.PicoRegion = 0; // auto\r
currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
\r
// restore gamma\r
if (gp2x_old_gamma != 100)\r
- set_gamma(100);\r
+ set_gamma(100, 0);\r
}\r
\r
\r
void emu_Loop(void)\r
{\r
static int gp2x_old_clock = 200;\r
- static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
+ static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
char fpsbuff[24]; // fps count c string\r
struct timeval tval; // timing\r
int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
- int target_fps, target_frametime, lim_time, i;\r
+ int target_fps, target_frametime, lim_time, vsync_offset, i;\r
char *notice = 0;\r
\r
printf("entered emu_Loop()\n");\r
printf(" done\n");\r
}\r
\r
- if (gp2x_old_gamma != currentConfig.gamma) {\r
- set_gamma(currentConfig.gamma);\r
+ if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
+ set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
gp2x_old_gamma = currentConfig.gamma;\r
- printf("updated gamma to %i\n", currentConfig.gamma);\r
+ printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
}\r
\r
+ if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
+ if (currentConfig.EmuOpt&0x2000)\r
+ set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
+ else unset_LCD_custom_rate();\r
+ }\r
+\r
+ EmuOpt_old = currentConfig.EmuOpt;\r
fpsbuff[0] = 0;\r
\r
// make sure we are in correct mode\r
// prepare CD buffer\r
if (PicoMCD & 1) PicoCDBufferInit();\r
\r
+ // calc vsync offset to sync timing code with vsync\r
+ if (currentConfig.EmuOpt&0x2000) {\r
+ gettimeofday(&tval, 0);\r
+ gp2x_video_wait_vsync();\r
+ gettimeofday(&tval, 0);\r
+ vsync_offset = tval.tv_usec;\r
+ while (vsync_offset >= target_frametime)\r
+ vsync_offset -= target_frametime;\r
+ if (!vsync_offset) vsync_offset++;\r
+ printf("vsync_offset: %i\n", vsync_offset);\r
+ } else\r
+ vsync_offset = 0;\r
+\r
// loop?\r
while (engineState == PGS_Running)\r
{\r
if (frames_shown > frames_done) frames_shown = frames_done;\r
}\r
}\r
-#if 0\r
- sprintf(fpsbuff, "%05i", Pico.m.frame_count);\r
-#endif\r
- lim_time = (frames_done+1) * target_frametime;\r
+\r
+ lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
for(i = 0; i < currentConfig.Frameskip; i++) {\r
updateKeys();\r
reset_timing = 1;\r
else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
{\r
- // sleep if we are still too fast\r
+ // sleep or vsync if we are still too fast\r
// usleep sleeps for ~20ms minimum, so it is not a solution here\r
if(tval.tv_usec < lim_time)\r
{\r
// we are too fast\r
- simpleWait(thissec, lim_time);\r
+ if (vsync_offset) {\r
+ if (lim_time - tval.tv_usec > target_frametime/2)\r
+ simpleWait(thissec, lim_time - target_frametime/4);\r
+ gp2x_video_wait_vsync();\r
+ } else {\r
+ simpleWait(thissec, lim_time);\r
+ }\r
}\r
}\r
\r
\r
// save SRAM\r
if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
- osd_text(4, 232, "Writing SRAM/BRAM..");\r
+ emu_state_cb("Writing SRAM/BRAM..");\r
emu_SaveLoadGame(0, 1);\r
SRam.changed = 0;\r
}\r
FILE *sramFile;\r
int sram_size;\r
unsigned char *sram_data;\r
+ int truncate = 1;\r
if (PicoMCD&1) {\r
- sram_size = 0x2000;\r
- sram_data = Pico_mcd->bram;\r
+ if (PicoOpt&0x8000) { // MCD RAM cart?\r
+ sram_size = 0x12000;\r
+ sram_data = SRam.data;\r
+ if (sram_data)\r
+ memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
+ } else {\r
+ sram_size = 0x2000;\r
+ sram_data = Pico_mcd->bram;\r
+ truncate = 0; // the .brm may contain RAM cart data after normal brm\r
+ }\r
} else {\r
sram_size = SRam.end-SRam.start+1;\r
if(SRam.reg_back & 4) sram_size=0x2000;\r
sram_data = SRam.data;\r
}\r
- if(!sram_data) return 0; // SRam forcefully disabled for this game\r
+ if (!sram_data) return 0; // SRam forcefully disabled for this game\r
\r
- if(load) {\r
+ if (load) {\r
sramFile = fopen(saveFname, "rb");\r
if(!sramFile) return -1;\r
fread(sram_data, 1, sram_size, sramFile);\r
fclose(sramFile);\r
+ if ((PicoMCD&1) && (PicoOpt&0x8000))\r
+ memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
} else {\r
// sram save needs some special processing\r
// see if we have anything to save\r
- for(; sram_size > 0; sram_size--)\r
- if(sram_data[sram_size-1]) break;\r
+ for (; sram_size > 0; sram_size--)\r
+ if (sram_data[sram_size-1]) break;\r
\r
- if(sram_size) {\r
- sramFile = fopen(saveFname, "wb");\r
+ if (sram_size) {\r
+ sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
+ if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
+ if (!sramFile) return -1;\r
ret = fwrite(sram_data, 1, sram_size, sramFile);\r
ret = (ret != sram_size) ? -1 : 0;\r
fclose(sramFile);\r
notaz.gp2x.de / picodrive.git / blobdiff