1 // (c) Copyright 2006-2007 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 "../gp2x/emu.h"
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18 #include "../gp2x/usbjoy.h"
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19 #include "../gp2x/menu.h"
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20 #include "../common/arm_utils.h"
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21 #include "../common/fonts.h"
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22 #include "../common/emu.h"
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23 #include "../common/config.h"
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24 #include "../common/common.h"
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26 #include <Pico/PicoInt.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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34 #define OSD_FPS_X (800-200)
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36 #define OSD_FPS_X (800-120)
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41 int select_exits = 0;
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43 char romFileName[PATH_MAX];
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45 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
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46 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing
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47 static int osd_fps_x;
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48 char noticeMsg[64]; // notice msg to draw
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49 unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer
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50 int reset_timing = 0;
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52 #define PICO_PEN_ADJUST_X 4
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53 #define PICO_PEN_ADJUST_Y 2
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54 static int pico_pen_x = SCREEN_WIDTH/2, pico_pen_y = 240/2;
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56 static void emu_msg_cb(const char *msg);
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57 static void emu_msg_tray_open(void);
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60 void emu_noticeMsgUpdated(void)
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62 gettimeofday(¬iceMsgTime, 0);
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65 void emu_getMainDir(char *dst, int len)
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67 extern char **g_argv;
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70 strncpy(dst, g_argv[0], len);
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71 len -= 32; // reserve
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72 if (len < 0) len = 0;
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74 for (j = strlen(dst); j > 0; j--)
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75 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 static void scaling_update(void)
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102 PicoOpt &= ~0x4100;
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103 switch (currentConfig.scaling) {
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104 default: break; // off
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106 case 2: PicoOpt |= 0x0100; break; // hw hor+vert
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107 case 3: PicoOpt |= 0x4000; break; // sw hor
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112 void emu_Deinit(void)
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115 if((currentConfig.EmuOpt & 1) && SRam.changed) {
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116 emu_SaveLoadGame(0, 1);
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120 if (!(currentConfig.EmuOpt & 0x20)) {
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121 config_writelrom(PicoConfigFile);
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132 void emu_prepareDefaultConfig(void)
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134 memset(&defaultConfig, 0, sizeof(defaultConfig));
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135 defaultConfig.EmuOpt = 0x9f | 0x00700; // | <- ram_tmng, confirm_save, cd_leds
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136 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES|POPT_EN_MCD_GFX;
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137 defaultConfig.s_PsndRate = 44100;
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138 defaultConfig.s_PicoRegion = 0; // auto
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139 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
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140 defaultConfig.s_PicoCDBuffers = 0;
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141 defaultConfig.Frameskip = 0; // auto
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142 defaultConfig.CPUclock = 200;
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143 defaultConfig.volume = 50;
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144 defaultConfig.scaling = 0;
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145 defaultConfig.turbo_rate = 15;
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148 void emu_setDefaultConfig(void)
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150 memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
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151 PicoOpt = currentConfig.s_PicoOpt;
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152 PsndRate = currentConfig.s_PsndRate;
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153 PicoRegionOverride = currentConfig.s_PicoRegion;
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154 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
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155 PicoCDBuffers = currentConfig.s_PicoCDBuffers;
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158 static void textOut16(int x, int y, const char *text)
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160 int i,l,len=strlen(text);
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161 unsigned int *screen = (unsigned int *)((unsigned short *)SCREEN_BUFFER + (x&~1) + y*SCREEN_WIDTH);
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163 for (i = 0; i < len; i++)
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165 for (l=0;l<16;l+=2)
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167 unsigned char fd = fontdata8x8[((text[i])*8)+l/2];
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169 if(fd&0x80) screen[l*SCREEN_WIDTH/2+0]=screen[u*SCREEN_WIDTH/2+0]=0xffffffff;
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170 if(fd&0x40) screen[l*SCREEN_WIDTH/2+1]=screen[u*SCREEN_WIDTH/2+1]=0xffffffff;
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171 if(fd&0x20) screen[l*SCREEN_WIDTH/2+2]=screen[u*SCREEN_WIDTH/2+2]=0xffffffff;
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172 if(fd&0x10) screen[l*SCREEN_WIDTH/2+3]=screen[u*SCREEN_WIDTH/2+3]=0xffffffff;
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173 if(fd&0x08) screen[l*SCREEN_WIDTH/2+4]=screen[u*SCREEN_WIDTH/2+4]=0xffffffff;
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174 if(fd&0x04) screen[l*SCREEN_WIDTH/2+5]=screen[u*SCREEN_WIDTH/2+5]=0xffffffff;
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175 if(fd&0x02) screen[l*SCREEN_WIDTH/2+6]=screen[u*SCREEN_WIDTH/2+6]=0xffffffff;
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176 if(fd&0x01) screen[l*SCREEN_WIDTH/2+7]=screen[u*SCREEN_WIDTH/2+7]=0xffffffff;
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183 void osd_text(int x, int y, const char *text)
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185 int len = strlen(text)*8;
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187 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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189 x &= ~3; // align x
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190 len = (len+3) >> 2;
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191 for (h = 0; h < 8; h++) {
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192 p = (int *) ((unsigned char *) gp2x_screen+x+SCREEN_WIDTH*(y+h));
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193 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
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195 emu_textOut8(x, y, text);
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198 x &= ~1; // align x
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200 for (h = 0; h < 16; h++) {
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201 p = (int *) ((unsigned short *) gp2x_screen+x+SCREEN_WIDTH*(y+h));
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202 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;
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204 textOut16(x, y, text);
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208 static void draw_cd_leds(void)
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212 // if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?
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213 old_reg = Pico_mcd->s68k_regs[0];
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215 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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217 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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218 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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219 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+ 4) =
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220 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+ 4) =
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221 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+ 4) = col_g;
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222 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+12) =
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223 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+12) =
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224 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+12) = col_r;
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227 unsigned int *p = (unsigned int *)((short *)gp2x_screen + SCREEN_WIDTH*2+4);
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228 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
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229 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
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230 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;
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231 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;
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232 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
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236 static void draw_pico_ptr(void)
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238 unsigned short *p = (unsigned short *)gp2x_screen;
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240 // only if pen enabled and for 16bit modes
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241 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;
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243 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))
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246 p += SCREEN_WIDTH * (pico_pen_y + PICO_PEN_ADJUST_Y);
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247 p += pico_pen_x + PICO_PEN_ADJUST_X;
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255 static int EmuScanEnd16(unsigned int num)
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257 unsigned char *ps=HighCol+8;
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258 unsigned short *pd;
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259 unsigned short *pal=HighPal;
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260 int sh = Pico.video.reg[0xC]&8;
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261 int len, mask = 0xff;
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263 if (!(Pico.video.reg[1]&8)) num += 8;
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264 pd=(unsigned short *)gp2x_screen + num*800*2 + 800/2 - 320*2/2;
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266 if (Pico.m.dirtyPal)
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267 PicoDoHighPal555(sh);
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269 if (Pico.video.reg[12]&1) {
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276 if (!sh && (rendstatus & PDRAW_ACC_SPRITES))
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277 mask=0x3f; // accurate sprites, upper bits are priority stuff
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280 for (; len > 0; len--)
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282 unsigned int p = pal[*ps++ & mask];
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284 *(unsigned int *)pd = p;
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285 *(unsigned int *)(&pd[800]) = p;
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292 static int EmuScanBegin8(unsigned int num)
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294 if (!(Pico.video.reg[1]&8)) num += 8;
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295 DrawLineDest = (unsigned char *) gp2x_screen + SCREEN_WIDTH * num;
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300 int localPal[0x100];
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301 static void (*vidCpyM2)(void *dest, void *src) = NULL;
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303 static void blit(const char *fps, const char *notice)
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305 int emu_opt = currentConfig.EmuOpt;
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309 // 8bit fast renderer
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310 if (Pico.m.dirtyPal) {
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311 Pico.m.dirtyPal = 0;
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312 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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313 // feed new palette to our device
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314 gp2x_video_setpalette(localPal, 0x40);
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317 if (PicoRead16Hook == PicoSVPRead16)
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318 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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320 vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);
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322 else if (!(emu_opt&0x80))
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324 // 8bit accurate renderer
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325 if (Pico.m.dirtyPal)
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328 Pico.m.dirtyPal = 0;
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329 if (Pico.video.reg[0xC]&8) // shadow/hilight mode
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331 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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332 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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333 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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334 memcpy32(localPal+0xc0, localPal+0x40, 0x40);
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337 else if (rendstatus & PDRAW_ACC_SPRITES) {
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338 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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339 memcpy32(localPal+0x40, localPal, 0x40);
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340 memcpy32(localPal+0x80, localPal, 0x40);
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341 memcpy32(localPal+0xc0, localPal, 0x40);
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344 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
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345 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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346 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
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347 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
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351 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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353 if (pallen > 0xc0) {
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354 localPal[0xc0] = 0x0000c000;
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355 localPal[0xd0] = 0x00c00000;
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356 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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357 localPal[0xf0] = 0x00ffffff;
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359 gp2x_video_setpalette(localPal, pallen);
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363 if (notice || (emu_opt & 2)) {
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364 int h = SCREEN_HEIGHT-16;
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365 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;
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366 if (notice) osd_text(4, h, notice);
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368 osd_text(osd_fps_x+24*2, h-8, fps);
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370 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
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372 if (PicoAHW & PAHW_PICO)
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376 //memset((char *)gp2x_screen+800*471*2, (u++)>>1, 800*9*2);
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379 //gp2x_video_wait_vsync();
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384 // clears whole screen or just the notice area (in all buffers)
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385 static void clearArea(int full)
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387 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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389 if (full) gp2x_memset_all_buffers(0, 0xe0, SCREEN_WIDTH*240);
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390 else gp2x_memset_all_buffers(SCREEN_WIDTH*232, 0xe0, SCREEN_WIDTH*8);
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392 // 16bit accurate renderer
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393 if (full) gp2x_memset_all_buffers(0, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);
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394 else gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);
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399 static void vidResetMode(void)
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401 if (PicoOpt&0x10) {
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402 gp2x_video_changemode(8);
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403 } else if (currentConfig.EmuOpt&0x80) {
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404 gp2x_video_changemode(16);
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405 PicoDrawSetColorFormat(-1);
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406 PicoScanEnd = EmuScanEnd16;
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408 gp2x_video_changemode(8);
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409 PicoDrawSetColorFormat(2);
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410 PicoScanBegin = EmuScanBegin8;
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412 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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413 // setup pal for 8-bit modes
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414 localPal[0xc0] = 0x0000c000; // MCD LEDs
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415 localPal[0xd0] = 0x00c00000;
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416 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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417 localPal[0xf0] = 0x00ffffff;
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418 gp2x_video_setpalette(localPal, 0x100);
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419 gp2x_memset_all_buffers(0, 0xe0, 320*240);
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422 Pico.m.dirtyPal = 1;
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424 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))
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425 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
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426 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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430 static void emu_msg_cb(const char *msg)
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432 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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434 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16), 0xe0, SCREEN_WIDTH*16);
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435 osd_text(4, SCREEN_HEIGHT-16, msg);
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436 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16),
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437 SCREEN_WIDTH*(SCREEN_HEIGHT-16), SCREEN_WIDTH*16);
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439 // 16bit accurate renderer
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440 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);
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441 osd_text(4, SCREEN_HEIGHT-16, msg);
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442 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2,
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443 SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, SCREEN_WIDTH*16*2);
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445 gettimeofday(¬iceMsgTime, 0);
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446 noticeMsgTime.tv_sec -= 2;
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448 /* assumption: emu_msg_cb gets called only when something slow is about to happen */
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452 static void emu_state_cb(const char *str)
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458 static void emu_msg_tray_open(void)
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460 strcpy(noticeMsg, "CD tray opened");
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461 gettimeofday(¬iceMsgTime, 0);
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464 static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)
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466 int ret, px, py, lim_x;
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467 static int pdown_frames = 0;
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469 emu_RunEventsPico(events);
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471 if (pico_inp_mode == 0) return;
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474 ret = gp2x_touchpad_read(&px, &py);
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479 if (pdown_frames++ > 5)
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480 PicoPad[0] |= 0x20;
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484 if (!(Pico.video.reg[12]&1)) {
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486 if (pico_pen_x < 0) pico_pen_x = 0;
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487 if (pico_pen_x > 248) pico_pen_x = 248;
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489 if (pico_pen_y > 224) pico_pen_y = 224;
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495 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
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498 PicoPad[0] &= ~0x0f; // release UDLR
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499 if (gp2x_keys & GP2X_UP) pico_pen_y--;
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500 if (gp2x_keys & GP2X_DOWN) pico_pen_y++;
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501 if (gp2x_keys & GP2X_LEFT) pico_pen_x--;
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502 if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;
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504 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
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505 if (pico_pen_y < 8) pico_pen_y = 8;
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506 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;
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507 if (pico_pen_x < 0) pico_pen_x = 0;
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508 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;
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510 PicoPicohw.pen_pos[0] = pico_pen_x;
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511 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;
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512 PicoPicohw.pen_pos[0] += 0x3c;
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513 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
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516 static void update_volume(int has_changed, int is_up)
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518 static int prev_frame = 0, wait_frames = 0;
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519 int vol = currentConfig.volume;
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523 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
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527 if (vol < 99) vol++;
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529 if (vol > 0) vol--;
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532 gp2x_sound_volume(vol, vol);
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533 currentConfig.volume = vol;
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535 sprintf(noticeMsg, "VOL: %02i", vol);
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536 gettimeofday(¬iceMsgTime, 0);
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537 prev_frame = Pico.m.frame_count;
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540 // set the right mixer func
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541 if (!(PicoOpt&8)) return; // just use defaults for mono
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543 PsndMix_32_to_16l = mix_32_to_16l_stereo;
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545 mix_32_to_16l_level = 5 - vol;
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546 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
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550 static void RunEvents(unsigned int which)
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552 if (which & 0x1800) // save or load (but not both)
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555 if ( emu_checkSaveFile(state_slot) &&
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556 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
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557 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save
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558 unsigned long keys;
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559 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");
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560 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )
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562 if (keys & GP2X_X) do_it = 0;
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563 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release
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568 osd_text(4, SCREEN_HEIGHT-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
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569 PicoStateProgressCB = emu_state_cb;
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570 gp2x_memcpy_all_buffers(gp2x_screen, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);
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571 emu_SaveLoadGame((which & 0x1000) >> 12, 0);
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572 PicoStateProgressCB = NULL;
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577 if (which & 0x0400) // switch renderer
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579 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
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580 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;
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581 else currentConfig.EmuOpt &= ~0x80;
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585 if (PicoOpt&0x10) {
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586 strcpy(noticeMsg, " 8bit fast renderer");
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587 } else if (currentConfig.EmuOpt&0x80) {
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588 strcpy(noticeMsg, "16bit accurate renderer");
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590 strcpy(noticeMsg, " 8bit accurate renderer");
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593 gettimeofday(¬iceMsgTime, 0);
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595 if (which & 0x0300)
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599 if(state_slot < 0) state_slot = 9;
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602 if(state_slot > 9) state_slot = 0;
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604 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
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605 gettimeofday(¬iceMsgTime, 0);
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607 if (which & 0x0080) {
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608 engineState = PGS_Menu;
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612 static void updateKeys(void)
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614 unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;
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615 static unsigned int prevEvents = 0;
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618 keys = gp2x_joystick_read(0);
\r
619 if (keys & GP2X_SELECT) {
\r
620 engineState = select_exits ? PGS_Quit : PGS_Menu;
\r
621 // wait until select is released, so menu would not resume game
\r
622 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);
\r
625 keys &= CONFIGURABLE_KEYS;
\r
628 for (i = 0; i < 32; i++)
\r
630 if (keys2 & (1 << i))
\r
632 int pl, acts = currentConfig.KeyBinds[i];
\r
633 if (!acts) continue;
\r
634 pl = (acts >> 16) & 1;
\r
635 if (kb_combo_keys & (1 << i))
\r
637 int u = i+1, acts_c = acts & kb_combo_acts;
\r
638 // let's try to find the other one
\r
640 for (; u < 32; u++)
\r
641 if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {
\r
642 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];
\r
643 keys2 &= ~((1 << i) | (1 << u));
\r
647 // add non-combo actions if combo ones were not found
\r
648 if (!acts_c || u == 32)
\r
649 allActions[pl] |= acts & ~kb_combo_acts;
\r
651 allActions[pl] |= acts;
\r
657 if (num_of_joys > 0)
\r
659 gp2x_usbjoy_update();
\r
660 for (joy = 0; joy < num_of_joys; joy++) {
\r
661 int btns = gp2x_usbjoy_check2(joy);
\r
662 for (i = 0; i < 32; i++) {
\r
663 if (btns & (1 << i)) {
\r
664 int acts = currentConfig.JoyBinds[joy][i];
\r
665 int pl = (acts >> 16) & 1;
\r
666 allActions[pl] |= acts;
\r
672 PicoPad[0] = allActions[0] & 0xfff;
\r
673 PicoPad[1] = allActions[1] & 0xfff;
\r
675 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);
\r
676 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);
\r
678 events = (allActions[0] | allActions[1]) >> 16;
\r
680 // volume is treated in special way and triggered every frame
\r
681 if (events & 0x6000)
\r
682 update_volume(1, events & 0x2000);
\r
684 if ((events ^ prevEvents) & 0x40) {
\r
685 emu_changeFastForward(events & 0x40);
\r
686 update_volume(0, 0);
\r
690 events &= ~prevEvents;
\r
692 if (PicoAHW == PAHW_PICO)
\r
693 RunEventsPico(events, keys);
\r
694 if (events) RunEvents(events);
\r
695 if (movie_data) emu_updateMovie();
\r
697 prevEvents = (allActions[0] | allActions[1]) >> 16;
\r
701 static void updateSound(int len)
\r
703 if (PicoOpt&8) len<<=1;
\r
705 /* avoid writing audio when lagging behind to prevent audio lag */
\r
706 if (PicoSkipFrame != 2)
\r
707 gp2x_sound_write(PsndOut, len<<1);
\r
711 static void SkipFrame(int do_audio)
\r
713 PicoSkipFrame=do_audio ? 1 : 2;
\r
719 void emu_forcedFrame(int opts)
\r
721 int po_old = PicoOpt;
\r
722 int eo_old = currentConfig.EmuOpt;
\r
725 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites
\r
726 currentConfig.EmuOpt |= 0x80;
\r
729 PicoDrawSetColorFormat(-1);
\r
730 PicoScanEnd = EmuScanEnd16;
\r
731 Pico.m.dirtyPal = 1;
\r
732 PicoFrameDrawOnly();
\r
735 if (!(Pico.video.reg[12]&1)) {
\r
736 vidCpyM2 = vidCpyM2_32col;
\r
738 } else vidCpyM2 = vidCpyM2_40col;
\r
740 vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);
\r
741 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
742 gp2x_video_setpalette(localPal, 0x40);
\r
745 currentConfig.EmuOpt = eo_old;
\r
748 static void simpleWait(int thissec, int lim_time)
\r
750 struct timeval tval;
\r
752 spend_cycles(1024);
\r
753 gettimeofday(&tval, 0);
\r
754 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
756 while (tval.tv_usec < lim_time)
\r
758 spend_cycles(1024);
\r
759 gettimeofday(&tval, 0);
\r
760 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
765 void emu_Loop(void)
\r
767 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
\r
768 char fpsbuff[24]; // fps count c string
\r
769 struct timeval tval; // timing
\r
770 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync
\r
771 int frames_done, frames_shown, thissec; // actual frames
\r
772 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;
\r
775 printf("entered emu_Loop()\n");
\r
779 // make sure we are in correct mode
\r
782 Pico.m.dirtyPal = 1;
\r
783 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
784 emu_findKeyBindCombos();
\r
786 // pal/ntsc might have changed, reset related stuff
\r
787 target_fps = Pico.m.pal ? 50 : 60;
\r
788 target_frametime = 1000000/target_fps;
\r
791 // prepare sound stuff
\r
792 if (currentConfig.EmuOpt & 4)
\r
794 int snd_excess_add;
\r
795 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)
\r
796 PsndRerate(Pico.m.frame_count ? 1 : 0);
\r
798 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
\r
799 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
\r
800 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
\r
801 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);
\r
802 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);
\r
803 PicoWriteSound = updateSound;
\r
804 update_volume(0, 0);
\r
805 memset(sndBuffer, 0, sizeof(sndBuffer));
\r
806 PsndOut = sndBuffer;
\r
807 PsndRate_old = PsndRate;
\r
808 PicoOpt_old = PicoOpt;
\r
809 pal_old = Pico.m.pal;
\r
814 // prepare CD buffer
\r
815 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();
\r
817 // calc vsync offset to sync timing code with vsync
\r
818 if (currentConfig.EmuOpt&0x2000) {
\r
819 gettimeofday(&tval, 0);
\r
820 gp2x_video_wait_vsync();
\r
821 gettimeofday(&tval, 0);
\r
822 vsync_offset = tval.tv_usec;
\r
823 while (vsync_offset >= target_frametime)
\r
824 vsync_offset -= target_frametime;
\r
825 if (!vsync_offset) vsync_offset++;
\r
826 printf("vsync_offset: %i\n", vsync_offset);
\r
830 frames_done = frames_shown = thissec =
\r
831 pframes_done = pframes_shown = pthissec = 0;
\r
834 while (engineState == PGS_Running)
\r
838 gettimeofday(&tval, 0);
\r
839 if (reset_timing) {
\r
841 pthissec = tval.tv_sec;
\r
842 pframes_shown = pframes_done = tval.tv_usec/target_frametime;
\r
845 // show notice message?
\r
846 if (noticeMsgTime.tv_sec)
\r
848 static int noticeMsgSum;
\r
849 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec
\r
850 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;
\r
854 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
\r
855 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
\r
856 notice = noticeMsg;
\r
860 // check for mode changes
\r
861 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
\r
862 if (modes != oldmodes)
\r
864 int scalex = SCREEN_WIDTH;
\r
865 osd_fps_x = OSD_FPS_X;
\r
867 vidCpyM2 = vidCpyM2_40col;
\r
869 if (PicoOpt & 0x100) {
\r
870 vidCpyM2 = vidCpyM2_32col_nobord;
\r
872 osd_fps_x = OSD_FPS_X - 64;
\r
874 vidCpyM2 = vidCpyM2_32col;
\r
877 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode
\r
878 gp2x_video_RGB_setscaling(8, scalex, 224);
\r
879 else gp2x_video_RGB_setscaling(0, scalex, 240);
\r
885 if (thissec != tval.tv_sec)
\r
888 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
889 if (++bench == 10) {
\r
891 bench_fps_s = bench_fps;
\r
892 bf[bfp++ & 3] = bench_fps;
\r
895 bench_fps += frames_shown;
\r
896 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
898 if (currentConfig.EmuOpt & 2) {
\r
899 //sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
900 sprintf(fpsbuff, "%4i", frames_shown);
\r
901 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
904 frames_shown = frames_done = 0;
\r
905 thissec = tval.tv_sec;
\r
908 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
911 if (pthissec != tval.tv_sec)
\r
913 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
\r
914 pframes_done = pframes_shown = 0;
\r
916 // it is quite common for this implementation to leave 1 fame unfinished
\r
917 // when second changes, but we don't want buffer to starve.
\r
918 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {
\r
920 SkipFrame(1); pframes_done++;
\r
923 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;
\r
924 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;
\r
925 if (pframes_shown > pframes_done) pframes_shown = pframes_done;
\r
927 pthissec = tval.tv_sec;
\r
930 lim_time = (pframes_done+1) * target_frametime + vsync_offset;
\r
931 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
933 for(i = 0; i < currentConfig.Frameskip; i++) {
\r
935 SkipFrame(1); pframes_done++; frames_done++;
\r
936 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
\r
937 gettimeofday(&tval, 0);
\r
938 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
939 if (tval.tv_usec < lim_time) { // we are too fast
\r
940 simpleWait(pthissec, lim_time);
\r
943 lim_time += target_frametime;
\r
946 else if (tval.tv_usec > lim_time) // auto frameskip
\r
948 // no time left for this frame - skip
\r
949 if (tval.tv_usec - lim_time >= 300000) {
\r
950 /* something caused a slowdown for us (disk access? cache flush?)
\r
951 * try to recover by resetting timing... */
\r
956 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;
\r
964 gettimeofday(&tval, 0);
\r
965 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
967 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection
\r
969 /* else if (PsndOut != NULL || currentConfig.Frameskip < 0)
\r
971 // sleep or vsync if we are still too fast
\r
972 // usleep sleeps for ~20ms minimum, so it is not a solution here
\r
973 if (!reset_timing && tval.tv_usec < lim_time)
\r
976 if (vsync_offset) {
\r
977 if (lim_time - tval.tv_usec > target_frametime/2)
\r
978 simpleWait(pthissec, lim_time - target_frametime/4);
\r
979 gp2x_video_wait_vsync();
\r
981 simpleWait(pthissec, lim_time);
\r
986 blit(fpsbuff, notice);
\r
988 pframes_done++; pframes_shown++;
\r
989 frames_done++; frames_shown++;
\r
992 emu_changeFastForward(0);
\r
994 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();
\r
997 if((currentConfig.EmuOpt & 1) && SRam.changed) {
\r
998 emu_state_cb("Writing SRAM/BRAM..");
\r
999 emu_SaveLoadGame(0, 1);
\r
1003 // if in 8bit mode, generate 16bit image for menu background
\r
1004 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))
\r
1005 emu_forcedFrame(POPT_EN_SOFTSCALE);
\r
1009 void emu_ResetGame(void)
\r