1 // (c) Copyright 2006-2008 notaz, All rights reserved.
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2 // Free for non-commercial use.
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4 // For commercial use, separate licencing terms must be obtained.
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8 #include <sys/time.h>
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9 #include <sys/stat.h>
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10 #include <sys/types.h>
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11 #include <linux/limits.h>
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17 #include "../common/arm_utils.h"
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18 #include "../common/fonts.h"
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19 #include "../common/emu.h"
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20 #include "../common/menu.h"
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21 #include "../common/config.h"
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22 #include "../common/input.h"
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23 #include "../linux/sndout_oss.h"
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24 #include "asm_utils.h"
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26 #include <pico/pico_int.h>
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27 #include <pico/patch.h>
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28 #include <pico/sound/mix.h>
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29 #include <zlib/zlib.h>
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33 //#define USE_320_SCREEN 1
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36 #define OSD_FPS_X (800-200)
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38 #define OSD_FPS_X (800-120)
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42 int select_exits = 0;
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44 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
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45 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing
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46 static int osd_fps_x;
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47 unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer
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48 int reset_timing = 0;
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50 #define PICO_PEN_ADJUST_X 4
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51 #define PICO_PEN_ADJUST_Y 2
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52 static int pico_pen_x = 0, pico_pen_y = 240/2;
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54 static void emu_msg_cb(const char *msg);
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55 static void emu_msg_tray_open(void);
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58 void emu_noticeMsgUpdated(void)
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60 gettimeofday(¬iceMsgTime, 0);
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63 int emu_getMainDir(char *dst, int len)
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65 extern char **g_argv;
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68 strncpy(dst, g_argv[0], len);
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69 len -= 32; // reserve
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70 if (len < 0) len = 0;
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72 for (j = strlen(dst); j > 0; j--)
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73 if (dst[j] == '/') { dst[j+1] = 0; break; }
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80 // make temp buffer for alt renderer
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81 PicoDraw2FB = malloc((8+320)*(8+240+8));
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84 printf("PicoDraw2FB == 0\n");
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87 // make dirs for saves, cfgs, etc.
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94 PicoMessage = emu_msg_cb;
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95 PicoMCDopenTray = emu_msg_tray_open;
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96 PicoMCDcloseTray = menu_loop_tray;
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100 void emu_Deinit(void)
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103 if((currentConfig.EmuOpt & 1) && SRam.changed) {
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104 emu_SaveLoadGame(0, 1);
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108 if (!(currentConfig.EmuOpt & 0x20)) {
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109 config_writelrom(PicoConfigFile);
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120 void emu_prepareDefaultConfig(void)
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122 memset(&defaultConfig, 0, sizeof(defaultConfig));
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123 defaultConfig.EmuOpt = 0x8f | 0x00600; // | <- confirm_save, cd_leds
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124 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC;
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125 defaultConfig.s_PicoOpt |= POPT_ACC_SPRITES|POPT_EN_MCD_GFX;
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126 defaultConfig.EmuOpt &= ~8; // no save gzip
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127 defaultConfig.s_PsndRate = 44100;
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128 defaultConfig.s_PicoRegion = 0;
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129 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
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130 defaultConfig.s_PicoCDBuffers = 0;
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131 defaultConfig.Frameskip = 0;
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132 defaultConfig.CPUclock = 200;
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133 defaultConfig.volume = 50;
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134 defaultConfig.scaling = 0;
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135 defaultConfig.turbo_rate = 15;
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138 static void textOut16(int x, int y, const char *text)
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140 int i,l,len=strlen(text);
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141 unsigned int *screen = (unsigned int *)((unsigned short *)g_screen_ptr + (x&~1) + y*g_screen_width);
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143 for (i = 0; i < len; i++)
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147 unsigned char fd = fontdata8x8[((text[i])*8)+l/2];
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148 unsigned int *d = &screen[l*g_screen_width/2];
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149 if (fd&0x80) d[0]=0xffffffff;
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150 if (fd&0x40) d[1]=0xffffffff;
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151 if (fd&0x20) d[2]=0xffffffff;
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152 if (fd&0x10) d[3]=0xffffffff;
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153 if (fd&0x08) d[4]=0xffffffff;
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154 if (fd&0x04) d[5]=0xffffffff;
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155 if (fd&0x02) d[6]=0xffffffff;
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156 if (fd&0x01) d[7]=0xffffffff;
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157 l++; d = &screen[l*g_screen_width/2];
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158 if (fd&0x80) d[0]=0xffffffff;
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159 if (fd&0x40) d[1]=0xffffffff;
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160 if (fd&0x20) d[2]=0xffffffff;
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161 if (fd&0x10) d[3]=0xffffffff;
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162 if (fd&0x08) d[4]=0xffffffff;
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163 if (fd&0x04) d[5]=0xffffffff;
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164 if (fd&0x02) d[6]=0xffffffff;
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165 if (fd&0x01) d[7]=0xffffffff;
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173 void osd_text(int x, int y, const char *text)
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175 int len = strlen(text)*8;
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177 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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179 x &= ~3; // align x
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180 len = (len+3) >> 2;
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181 for (h = 0; h < 8; h++) {
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182 p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h));
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183 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
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185 emu_textOut8(x, y, text);
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188 x &= ~1; // align x
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190 for (h = 0; h < 16; h++) {
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191 p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h));
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192 for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;
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194 textOut16(x, y, text);
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198 static void draw_cd_leds(void)
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202 // if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?
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203 old_reg = Pico_mcd->s68k_regs[0];
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205 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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207 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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208 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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209 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =
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210 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =
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211 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;
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212 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =
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213 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =
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214 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;
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217 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);
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218 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
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219 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
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220 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
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221 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
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222 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
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226 static void draw_pico_ptr(void)
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228 unsigned short *p = (unsigned short *)g_screen_ptr;
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230 // only if pen enabled and for 16bit modes
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231 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;
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233 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))
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236 p += g_screen_width * (pico_pen_y + PICO_PEN_ADJUST_Y);
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237 p += pico_pen_x + PICO_PEN_ADJUST_X;
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245 #ifdef USE_320_SCREEN
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247 static int EmuScanBegin16(unsigned int num)
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249 if (!(Pico.video.reg[1]&8)) num += 8;
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250 DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2;
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251 //int w = (Pico.video.reg[12]&1) ? 320 : 256;
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252 //DrawLineDest = (unsigned short *)g_screen_ptr + num*w;
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257 #else // USE_320_SCREEN
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259 static int EmuScanEnd16(unsigned int num)
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261 unsigned char *ps=HighCol+8;
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262 unsigned short *pd;
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263 unsigned short *pal=HighPal;
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264 int sh = Pico.video.reg[0xC]&8;
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265 int len, mask = 0xff;
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267 if (!(Pico.video.reg[1]&8)) num += 8;
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268 pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2;
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270 if (Pico.m.dirtyPal)
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271 PicoDoHighPal555(sh);
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273 if (Pico.video.reg[12]&1) {
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280 if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))
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281 mask=0x3f; // messed sprites, upper bits are priority stuff
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284 clut_line(pd, ps, pal, (mask<<16) | len);
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286 for (; len > 0; len--)
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288 unsigned int p = pal[*ps++ & mask];
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290 *(unsigned int *)pd = p;
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291 *(unsigned int *)(&pd[800]) = p;
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299 #endif // USE_320_SCREEN
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301 int localPal[0x100];
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302 static void (*vidCpyM2)(void *dest, void *src) = NULL;
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304 static void blit(const char *fps, const char *notice)
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306 int emu_opt = currentConfig.EmuOpt;
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310 // 8bit fast renderer
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311 if (Pico.m.dirtyPal) {
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312 Pico.m.dirtyPal = 0;
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313 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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314 // feed new palette to our device
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315 // gp2x_video_setpalette(localPal, 0x40);
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318 if (PicoRead16Hook == PicoSVPRead16)
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319 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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321 vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);
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323 else if (!(emu_opt&0x80))
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325 // 8bit accurate renderer
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326 if (Pico.m.dirtyPal)
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329 Pico.m.dirtyPal = 0;
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330 if (Pico.video.reg[0xC]&8) // shadow/hilight mode
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332 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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333 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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334 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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335 memcpy32(localPal+0xc0, localPal+0x40, 0x40);
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338 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
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339 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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340 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
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341 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
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345 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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346 memcpy32(localPal+0x80, localPal, 0x40);
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348 if (pallen > 0xc0) {
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349 localPal[0xc0] = 0x0000c000;
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350 localPal[0xd0] = 0x00c00000;
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351 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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352 localPal[0xf0] = 0x00ffffff;
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354 // gp2x_video_setpalette(localPal, pallen);
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358 if (notice || (emu_opt & 2)) {
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359 int h = g_screen_height-16;
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360 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;
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361 if (notice) osd_text(4, h, notice);
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363 osd_text(osd_fps_x, h, fps);
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365 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
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367 if (PicoAHW & PAHW_PICO)
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370 //gp2x_video_wait_vsync();
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371 // gp2x_video_flip();
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375 // clears whole screen or just the notice area (in all buffers)
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376 static void clearArea(int full)
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378 if (full) memset(g_screen_ptr, 0, g_screen_width*g_screen_height*2);
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379 else memset((short *)g_screen_ptr + g_screen_width * (g_screen_height - 16), 0,
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380 g_screen_width * 16 * 2);
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384 static void vidResetMode(void)
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387 if (PicoOpt&0x10) {
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388 gp2x_video_changemode(8);
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389 } else if (currentConfig.EmuOpt&0x80) {
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390 gp2x_video_changemode(16);
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391 #ifdef USE_320_SCREEN
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392 PicoDrawSetColorFormat(1);
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393 PicoScanBegin = EmuScanBegin16;
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395 PicoDrawSetColorFormat(-1);
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396 PicoScanEnd = EmuScanEnd16;
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399 gp2x_video_changemode(8);
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400 PicoDrawSetColorFormat(2);
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401 PicoScanBegin = EmuScanBegin8;
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403 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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404 // setup pal for 8-bit modes
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405 localPal[0xc0] = 0x0000c000; // MCD LEDs
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406 localPal[0xd0] = 0x00c00000;
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407 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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408 localPal[0xf0] = 0x00ffffff;
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409 gp2x_video_setpalette(localPal, 0x100);
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410 gp2x_memset_all_buffers(0, 0xe0, 320*240);
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413 Pico.m.dirtyPal = 1;
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415 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))
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416 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
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417 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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419 #ifdef USE_320_SCREEN
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420 PicoDrawSetColorFormat(1);
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421 PicoScanBegin = EmuScanBegin16;
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423 PicoDrawSetColorFormat(-1);
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424 PicoScanEnd = EmuScanEnd16;
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430 static void emu_msg_cb(const char *msg)
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433 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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435 gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16), 0xe0, g_screen_width*16);
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436 osd_text(4, g_screen_height-16, msg);
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437 gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16),
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438 g_screen_width*(g_screen_height-16), g_screen_width*16);
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440 // 16bit accurate renderer
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441 gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16)*2, 0, g_screen_width*16*2);
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442 osd_text(4, g_screen_height-16, msg);
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443 gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16)*2,
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444 g_screen_width*(g_screen_height-16)*2, g_screen_width*16*2);
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446 gettimeofday(¬iceMsgTime, 0);
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447 noticeMsgTime.tv_sec -= 2;
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449 /* assumption: emu_msg_cb gets called only when something slow is about to happen */
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453 static void emu_state_cb(const char *str)
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459 static void emu_msg_tray_open(void)
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461 strcpy(noticeMsg, "CD tray opened");
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462 gettimeofday(¬iceMsgTime, 0);
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466 static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)
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468 int ret, px, py, lim_x;
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469 static int pdown_frames = 0;
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471 emu_RunEventsPico(events);
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473 if (pico_inp_mode == 0) return;
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476 ret = gp2x_touchpad_read(&px, &py);
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481 if (pdown_frames++ > 5)
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482 PicoPad[0] |= 0x20;
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486 if (!(Pico.video.reg[12]&1)) {
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488 if (pico_pen_x < 0) pico_pen_x = 0;
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489 if (pico_pen_x > 248) pico_pen_x = 248;
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491 if (pico_pen_y > 224) pico_pen_y = 224;
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497 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
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500 PicoPad[0] &= ~0x0f; // release UDLR
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501 if (gp2x_keys & GP2X_UP) pico_pen_y--;
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502 if (gp2x_keys & GP2X_DOWN) pico_pen_y++;
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503 if (gp2x_keys & GP2X_LEFT) pico_pen_x--;
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504 if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;
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506 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
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507 if (pico_pen_y < 8) pico_pen_y = 8;
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508 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;
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509 if (pico_pen_x < 0) pico_pen_x = 0;
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510 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;
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512 PicoPicohw.pen_pos[0] = pico_pen_x;
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513 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;
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514 PicoPicohw.pen_pos[0] += 0x3c;
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515 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
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519 static void update_volume(int has_changed, int is_up)
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521 static int prev_frame = 0, wait_frames = 0;
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522 int vol = currentConfig.volume;
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526 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
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530 if (vol < 99) vol++;
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532 if (vol > 0) vol--;
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535 sndout_oss_setvol(vol, vol);
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536 currentConfig.volume = vol;
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538 sprintf(noticeMsg, "VOL: %02i", vol);
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539 gettimeofday(¬iceMsgTime, 0);
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540 prev_frame = Pico.m.frame_count;
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543 // set the right mixer func
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544 if (!(PicoOpt&8)) return; // just use defaults for mono
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546 PsndMix_32_to_16l = mix_32_to_16l_stereo;
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548 mix_32_to_16l_level = 5 - vol;
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549 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
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553 static void RunEvents(unsigned int which)
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555 if (which & 0x1800) // save or load (but not both)
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558 if ( emu_checkSaveFile(state_slot) &&
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559 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
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560 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save
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562 unsigned long keys;
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563 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");
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564 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )
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566 if (keys & GP2X_X) do_it = 0;
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567 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release
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573 osd_text(4, g_screen_height-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
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574 PicoStateProgressCB = emu_state_cb;
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575 //gp2x_memcpy_all_buffers(g_screen_ptr, 0, g_screen_width*g_screen_height*2);
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576 emu_SaveLoadGame((which & 0x1000) >> 12, 0);
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577 PicoStateProgressCB = NULL;
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582 if (which & 0x0400) // switch renderer
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584 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
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585 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;
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586 else currentConfig.EmuOpt &= ~0x80;
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590 if (PicoOpt&0x10) {
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591 strcpy(noticeMsg, " 8bit fast renderer");
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592 } else if (currentConfig.EmuOpt&0x80) {
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593 strcpy(noticeMsg, "16bit accurate renderer");
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595 strcpy(noticeMsg, " 8bit accurate renderer");
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598 gettimeofday(¬iceMsgTime, 0);
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600 if (which & 0x0300)
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604 if(state_slot < 0) state_slot = 9;
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607 if(state_slot > 9) state_slot = 0;
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609 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
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610 gettimeofday(¬iceMsgTime, 0);
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612 if (which & 0x0080) {
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613 engineState = PGS_Menu;
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617 static void updateKeys(void)
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619 unsigned int allActions[2] = { 0, 0 }, events;
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620 static unsigned int prevEvents = 0;
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622 /* FIXME: combos, player2 */
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623 allActions[0] = in_update();
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625 PicoPad[0] = allActions[0] & 0xfff;
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626 PicoPad[1] = allActions[1] & 0xfff;
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628 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);
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629 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);
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631 events = (allActions[0] | allActions[1]) >> 16;
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633 // volume is treated in special way and triggered every frame
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634 if (events & 0x6000)
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635 update_volume(1, events & 0x2000);
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637 if ((events ^ prevEvents) & 0x40) {
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638 emu_changeFastForward(events & 0x40);
\r
639 update_volume(0, 0);
\r
643 events &= ~prevEvents;
\r
646 if (PicoAHW == PAHW_PICO)
\r
647 RunEventsPico(events, keys);
\r
649 if (events) RunEvents(events);
\r
650 if (movie_data) emu_updateMovie();
\r
652 prevEvents = (allActions[0] | allActions[1]) >> 16;
\r
656 static void updateSound(int len)
\r
658 if (PicoOpt&8) len<<=1;
\r
660 /* avoid writing audio when lagging behind to prevent audio lag */
\r
661 if (PicoSkipFrame != 2)
\r
662 sndout_oss_write(PsndOut, len<<1);
\r
666 static void SkipFrame(int do_audio)
\r
668 PicoSkipFrame=do_audio ? 1 : 2;
\r
674 void emu_forcedFrame(int opts)
\r
676 int po_old = PicoOpt;
\r
677 int eo_old = currentConfig.EmuOpt;
\r
680 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites
\r
681 currentConfig.EmuOpt |= 0x80;
\r
684 #ifdef USE_320_SCREEN
\r
685 PicoDrawSetColorFormat(1);
\r
686 PicoScanBegin = EmuScanBegin16;
\r
688 PicoDrawSetColorFormat(-1);
\r
689 PicoScanEnd = EmuScanEnd16;
\r
691 Pico.m.dirtyPal = 1;
\r
692 PicoFrameDrawOnly();
\r
695 if (!(Pico.video.reg[12]&1)) {
\r
696 vidCpyM2 = vidCpyM2_32col;
\r
698 } else vidCpyM2 = vidCpyM2_40col;
\r
700 vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);
\r
701 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
702 gp2x_video_setpalette(localPal, 0x40);
\r
705 currentConfig.EmuOpt = eo_old;
\r
708 void emu_platformDebugCat(char *str)
\r
713 static void simpleWait(int thissec, int lim_time)
\r
715 struct timeval tval;
\r
717 spend_cycles(1024);
\r
718 gettimeofday(&tval, 0);
\r
719 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
721 while (tval.tv_usec < lim_time)
\r
723 spend_cycles(1024);
\r
724 gettimeofday(&tval, 0);
\r
725 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
729 void emu_startSound(void)
\r
731 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
\r
732 int target_fps = Pico.m.pal ? 50 : 60;
\r
736 if (currentConfig.EmuOpt & 4)
\r
738 int snd_excess_add;
\r
739 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)
\r
740 PsndRerate(Pico.m.frame_count ? 1 : 0);
\r
742 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
\r
743 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
\r
744 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
\r
745 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);
\r
746 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
\r
747 PicoWriteSound = updateSound;
\r
748 update_volume(0, 0);
\r
749 memset(sndBuffer, 0, sizeof(sndBuffer));
\r
750 PsndOut = sndBuffer;
\r
751 PsndRate_old = PsndRate;
\r
752 PicoOpt_old = PicoOpt;
\r
753 pal_old = Pico.m.pal;
\r
757 void emu_endSound(void)
\r
761 /* wait until we can write more sound */
\r
762 void emu_waitSound(void)
\r
764 // don't need to do anything, writes will block by themselves
\r
767 void emu_Loop(void)
\r
769 char fpsbuff[24]; // fps count c string
\r
770 struct timeval tval; // timing
\r
771 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync
\r
772 int frames_done, frames_shown, thissec; // actual frames
\r
773 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;
\r
776 printf("entered emu_Loop()\n");
\r
780 // make sure we are in correct mode
\r
782 Pico.m.dirtyPal = 1;
\r
783 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
785 // pal/ntsc might have changed, reset related stuff
\r
786 target_fps = Pico.m.pal ? 50 : 60;
\r
787 target_frametime = 1000000/target_fps;
\r
792 // prepare CD buffer
\r
793 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();
\r
795 // calc vsync offset to sync timing code with vsync
\r
796 if (currentConfig.EmuOpt&0x2000) {
\r
797 gettimeofday(&tval, 0);
\r
798 //gp2x_video_wait_vsync();
\r
799 gettimeofday(&tval, 0);
\r
800 vsync_offset = tval.tv_usec;
\r
801 while (vsync_offset >= target_frametime)
\r
802 vsync_offset -= target_frametime;
\r
803 if (!vsync_offset) vsync_offset++;
\r
804 printf("vsync_offset: %i\n", vsync_offset);
\r
808 frames_done = frames_shown = thissec =
\r
809 pframes_done = pframes_shown = pthissec = 0;
\r
812 while (engineState == PGS_Running)
\r
816 gettimeofday(&tval, 0);
\r
817 if (reset_timing) {
\r
819 pthissec = tval.tv_sec;
\r
820 pframes_shown = pframes_done = tval.tv_usec/target_frametime;
\r
823 // show notice message?
\r
824 if (noticeMsgTime.tv_sec)
\r
826 static int noticeMsgSum;
\r
827 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec
\r
828 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;
\r
832 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
\r
833 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
\r
834 notice = noticeMsg;
\r
838 // check for mode changes
\r
839 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
\r
840 if (modes != oldmodes)
\r
842 int scalex = g_screen_width;
\r
843 osd_fps_x = OSD_FPS_X;
\r
845 vidCpyM2 = vidCpyM2_40col;
\r
847 if (PicoOpt & 0x100) {
\r
848 vidCpyM2 = vidCpyM2_32col_nobord;
\r
850 osd_fps_x = OSD_FPS_X - 64;
\r
852 vidCpyM2 = vidCpyM2_32col;
\r
855 //if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode
\r
856 // gp2x_video_RGB_setscaling(8, scalex, 224);
\r
857 // else gp2x_video_RGB_setscaling(0, scalex, 240);
\r
863 if (thissec != tval.tv_sec)
\r
866 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
867 if (++bench == 4) {
\r
869 bench_fps_s = bench_fps / 4;
\r
870 bf[bfp++ & 3] = bench_fps / 4;
\r
873 bench_fps += frames_shown;
\r
874 sprintf(fpsbuff, "%3i/%3i/%3i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
875 printf("%s\n", fpsbuff);
\r
877 if (currentConfig.EmuOpt & 2) {
\r
878 sprintf(fpsbuff, "%3i/%3i", frames_shown, frames_done);
\r
879 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
882 frames_shown = frames_done = 0;
\r
883 thissec = tval.tv_sec;
\r
886 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
889 if (pthissec != tval.tv_sec)
\r
891 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
\r
892 pframes_done = pframes_shown = 0;
\r
894 // it is quite common for this implementation to leave 1 fame unfinished
\r
895 // when second changes, but we don't want buffer to starve.
\r
896 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {
\r
898 SkipFrame(1); pframes_done++;
\r
901 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;
\r
902 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;
\r
903 if (pframes_shown > pframes_done) pframes_shown = pframes_done;
\r
905 pthissec = tval.tv_sec;
\r
908 lim_time = (pframes_done+1) * target_frametime + vsync_offset;
\r
909 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
911 for(i = 0; i < currentConfig.Frameskip; i++) {
\r
913 SkipFrame(1); pframes_done++; frames_done++;
\r
914 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
\r
915 gettimeofday(&tval, 0);
\r
916 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
917 if (tval.tv_usec < lim_time) { // we are too fast
\r
918 simpleWait(pthissec, lim_time);
\r
921 lim_time += target_frametime;
\r
924 else if (tval.tv_usec > lim_time) // auto frameskip
\r
926 // no time left for this frame - skip
\r
927 if (tval.tv_usec - lim_time >= 300000) {
\r
928 /* something caused a slowdown for us (disk access? cache flush?)
\r
929 * try to recover by resetting timing... */
\r
934 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;
\r
942 gettimeofday(&tval, 0);
\r
943 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
945 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection
\r
948 else if (PsndOut != NULL || currentConfig.Frameskip < 0)
\r
950 // sleep or vsync if we are still too fast
\r
951 // usleep sleeps for ~20ms minimum, so it is not a solution here
\r
952 if (!reset_timing && tval.tv_usec < lim_time)
\r
955 if (vsync_offset) {
\r
956 if (lim_time - tval.tv_usec > target_frametime/2)
\r
957 simpleWait(pthissec, lim_time - target_frametime/4);
\r
958 // gp2x_video_wait_vsync();
\r
960 simpleWait(pthissec, lim_time);
\r
965 blit(fpsbuff, notice);
\r
967 pframes_done++; pframes_shown++;
\r
968 frames_done++; frames_shown++;
\r
971 emu_changeFastForward(0);
\r
973 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();
\r
976 if((currentConfig.EmuOpt & 1) && SRam.changed) {
\r
977 emu_state_cb("Writing SRAM/BRAM..");
\r
978 emu_SaveLoadGame(0, 1);
\r
982 // if in 8bit mode, generate 16bit image for menu background
\r
983 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))
\r
984 emu_forcedFrame(POPT_EN_SOFTSCALE);
\r
988 void emu_ResetGame(void)
\r