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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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/input.h"
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25 #include "../linux/sndout_oss.h"
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26 #include "cpuctrl.h"
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27 #include "version.h"
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29 #include <pico/pico_int.h>
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30 #include <pico/patch.h>
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31 #include <pico/sound/mix.h>
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32 #include <zlib/zlib.h>
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37 #define OSD_FPS_X 220
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39 #define OSD_FPS_X 260
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43 int select_exits = 0;
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45 extern int crashed_940;
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47 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
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48 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing
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49 static int osd_fps_x;
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50 static int gp2x_old_gamma = 100;
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51 unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer
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52 int reset_timing = 0;
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54 #define PICO_PEN_ADJUST_X 4
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55 #define PICO_PEN_ADJUST_Y 2
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56 static int pico_pen_x = 320/2, pico_pen_y = 240/2;
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58 static void emu_msg_cb(const char *msg);
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59 static void emu_msg_tray_open(void);
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62 void emu_noticeMsgUpdated(void)
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64 gettimeofday(¬iceMsgTime, 0);
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67 int emu_getMainDir(char *dst, int len)
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69 extern char **g_argv;
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72 strncpy(dst, g_argv[0], len);
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73 len -= 32; // reserve
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74 if (len < 0) len = 0;
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76 for (j = strlen(dst); j > 0; j--)
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77 if (dst[j] == '/') { dst[j+1] = 0; break; }
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84 // make temp buffer for alt renderer
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85 PicoDraw2FB = malloc((8+320)*(8+240+8));
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88 printf("PicoDraw2FB == 0\n");
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91 // make dirs for saves, cfgs, etc.
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98 PicoMessage = emu_msg_cb;
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99 PicoMCDopenTray = emu_msg_tray_open;
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100 PicoMCDcloseTray = menu_loop_tray;
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104 static void scaling_update(void)
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106 PicoOpt &= ~0x4100;
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107 switch (currentConfig.scaling) {
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108 default: break; // off
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110 case 2: PicoOpt |= 0x0100; break; // hw hor+vert
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111 case 3: PicoOpt |= 0x4000; break; // sw hor
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116 void emu_Deinit(void)
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119 if((currentConfig.EmuOpt & 1) && SRam.changed) {
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120 emu_SaveLoadGame(0, 1);
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124 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG))
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132 if (gp2x_old_gamma != 100)
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136 void emu_prepareDefaultConfig(void)
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138 memset(&defaultConfig, 0, sizeof(defaultConfig));
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139 defaultConfig.EmuOpt = 0x9d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds
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140 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;
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141 defaultConfig.s_PsndRate = 44100;
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142 defaultConfig.s_PicoRegion = 0; // auto
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143 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
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144 defaultConfig.s_PicoCDBuffers = 0;
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145 defaultConfig.Frameskip = -1; // auto
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146 defaultConfig.CPUclock = 200;
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147 defaultConfig.volume = 50;
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148 defaultConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU
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149 defaultConfig.KeyBinds[ 4] = 1<<1;
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150 defaultConfig.KeyBinds[ 2] = 1<<2;
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151 defaultConfig.KeyBinds[ 6] = 1<<3;
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152 defaultConfig.KeyBinds[14] = 1<<4;
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153 defaultConfig.KeyBinds[13] = 1<<5;
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154 defaultConfig.KeyBinds[12] = 1<<6;
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155 defaultConfig.KeyBinds[ 8] = 1<<7;
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156 defaultConfig.KeyBinds[15] = 1<<26; // switch rend
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157 defaultConfig.KeyBinds[10] = 1<<27; // save state
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158 defaultConfig.KeyBinds[11] = 1<<28; // load state
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159 defaultConfig.KeyBinds[23] = 1<<29; // vol up
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160 defaultConfig.KeyBinds[22] = 1<<30; // vol down
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161 defaultConfig.gamma = 100;
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162 defaultConfig.scaling = 0;
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163 defaultConfig.turbo_rate = 15;
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166 void osd_text(int x, int y, const char *text)
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168 int len = strlen(text)*8;
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169 int *p, i, h, offs;
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171 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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172 len = (len+3) >> 2;
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173 for (h = 0; h < 8; h++) {
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174 offs = (x + g_screen_width * (y+h)) & ~3;
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175 p = (int *) ((char *)g_screen_ptr + offs);
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176 for (i = len; i; i--, p++)
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179 emu_textOut8(x, y, text);
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181 len = (len+1) >> 1;
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182 for (h = 0; h < 8; h++) {
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183 offs = (x + g_screen_width * (y+h)) & ~1;
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184 p = (int *) ((short *)g_screen_ptr + offs);
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185 for (i = len; i; i--, p++)
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186 *p = (*p >> 2) & 0x39e7;
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188 emu_textOut16(x, y, text);
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192 static void draw_cd_leds(void)
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196 // if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?
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197 old_reg = Pico_mcd->s68k_regs[0];
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199 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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201 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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202 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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203 *(unsigned int *)((char *)g_screen_ptr + 320*2+ 4) =
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204 *(unsigned int *)((char *)g_screen_ptr + 320*3+ 4) =
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205 *(unsigned int *)((char *)g_screen_ptr + 320*4+ 4) = col_g;
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206 *(unsigned int *)((char *)g_screen_ptr + 320*2+12) =
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207 *(unsigned int *)((char *)g_screen_ptr + 320*3+12) =
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208 *(unsigned int *)((char *)g_screen_ptr + 320*4+12) = col_r;
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211 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + 320*2+4);
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212 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
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213 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
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214 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
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215 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
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216 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
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220 static void draw_pico_ptr(void)
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222 unsigned short *p = (unsigned short *)g_screen_ptr;
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224 // only if pen enabled and for 16bit modes
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225 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;
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227 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))
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230 p += 320 * (pico_pen_y + PICO_PEN_ADJUST_Y);
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231 p += pico_pen_x + PICO_PEN_ADJUST_X;
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239 static int EmuScanBegin16(unsigned int num)
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241 if (!(Pico.video.reg[1]&8)) num += 8;
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242 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;
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247 static int EmuScanBegin8(unsigned int num)
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249 if (!(Pico.video.reg[1]&8)) num += 8;
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250 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;
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255 int localPal[0x100];
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256 static void (*vidCpyM2)(void *dest, void *src) = NULL;
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258 static void blit(const char *fps, const char *notice)
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260 int emu_opt = currentConfig.EmuOpt;
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264 // 8bit fast renderer
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265 if (Pico.m.dirtyPal) {
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266 Pico.m.dirtyPal = 0;
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267 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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268 // feed new palette to our device
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269 gp2x_video_setpalette(localPal, 0x40);
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272 if (PicoRead16Hook == PicoSVPRead16)
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273 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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275 vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);
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277 else if (!(emu_opt&0x80))
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279 // 8bit accurate renderer
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280 if (Pico.m.dirtyPal)
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283 Pico.m.dirtyPal = 0;
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284 if (Pico.video.reg[0xC]&8) // shadow/hilight mode
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286 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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287 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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288 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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289 memcpy32(localPal+0xc0, localPal+0x40, 0x40);
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292 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
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293 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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294 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
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295 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
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298 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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299 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess
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301 if (pallen > 0xc0) {
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302 localPal[0xc0] = 0x0000c000;
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303 localPal[0xd0] = 0x00c00000;
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304 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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305 localPal[0xf0] = 0x00ffffff;
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307 gp2x_video_setpalette(localPal, pallen);
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311 if (notice || (emu_opt & 2)) {
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313 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;
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314 if (notice) osd_text(4, h, notice);
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316 osd_text(osd_fps_x, h, fps);
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318 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
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320 if (PicoAHW & PAHW_PICO)
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323 //gp2x_video_wait_vsync();
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326 if (!(PicoOpt&0x10)) {
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327 if (!(Pico.video.reg[1]&8)) {
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328 if (currentConfig.EmuOpt&0x80) {
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329 DrawLineDest = (unsigned short *) g_screen_ptr + 320*8;
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331 DrawLineDest = (unsigned char *) g_screen_ptr + 320*8;
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334 DrawLineDest = g_screen_ptr;
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340 // clears whole screen or just the notice area (in all buffers)
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341 static void clearArea(int full)
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343 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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345 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
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346 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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348 // 16bit accurate renderer
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349 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);
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350 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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355 static void vidResetMode(void)
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357 if (PicoOpt&0x10) {
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358 gp2x_video_changemode(8);
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359 } else if (currentConfig.EmuOpt&0x80) {
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360 gp2x_video_changemode(16);
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361 PicoDrawSetColorFormat(1);
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362 PicoScanBegin = EmuScanBegin16;
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364 gp2x_video_changemode(8);
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365 PicoDrawSetColorFormat(2);
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366 PicoScanBegin = EmuScanBegin8;
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368 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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369 // setup pal for 8-bit modes
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370 localPal[0xc0] = 0x0000c000; // MCD LEDs
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371 localPal[0xd0] = 0x00c00000;
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372 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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373 localPal[0xf0] = 0x00ffffff;
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374 gp2x_video_setpalette(localPal, 0x100);
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375 gp2x_memset_all_buffers(0, 0xe0, 320*240);
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378 Pico.m.dirtyPal = 1;
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380 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))
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381 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
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382 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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386 static void emu_msg_cb(const char *msg)
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388 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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390 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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391 osd_text(4, 232, msg);
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392 gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232, 320*232, 320*8);
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394 // 16bit accurate renderer
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395 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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396 osd_text(4, 232, msg);
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397 gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232*2, 320*232*2, 320*8*2);
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399 gettimeofday(¬iceMsgTime, 0);
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400 noticeMsgTime.tv_sec -= 2;
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402 /* assumption: emu_msg_cb gets called only when something slow is about to happen */
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406 static void emu_state_cb(const char *str)
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412 static void emu_msg_tray_open(void)
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414 strcpy(noticeMsg, "CD tray opened");
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415 gettimeofday(¬iceMsgTime, 0);
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418 static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)
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420 int ret, px, py, lim_x;
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421 static int pdown_frames = 0;
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423 emu_RunEventsPico(events);
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425 if (pico_inp_mode == 0) return;
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428 ret = gp2x_touchpad_read(&px, &py);
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433 if (pdown_frames++ > 5)
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434 PicoPad[0] |= 0x20;
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438 if (!(Pico.video.reg[12]&1)) {
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440 if (pico_pen_x < 0) pico_pen_x = 0;
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441 if (pico_pen_x > 248) pico_pen_x = 248;
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443 if (pico_pen_y > 224) pico_pen_y = 224;
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449 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
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452 PicoPad[0] &= ~0x0f; // release UDLR
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453 if (gp2x_keys & GP2X_UP) pico_pen_y--;
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454 if (gp2x_keys & GP2X_DOWN) pico_pen_y++;
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455 if (gp2x_keys & GP2X_LEFT) pico_pen_x--;
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456 if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;
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458 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
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459 if (pico_pen_y < 8) pico_pen_y = 8;
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460 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;
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461 if (pico_pen_x < 0) pico_pen_x = 0;
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462 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;
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464 PicoPicohw.pen_pos[0] = pico_pen_x;
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465 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;
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466 PicoPicohw.pen_pos[0] += 0x3c;
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467 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
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470 static void update_volume(int has_changed, int is_up)
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472 static int prev_frame = 0, wait_frames = 0;
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473 int vol = currentConfig.volume;
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477 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
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481 if (vol < 99) vol++;
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483 if (vol > 0) vol--;
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486 sndout_oss_setvol(vol, vol);
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487 currentConfig.volume = vol;
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489 sprintf(noticeMsg, "VOL: %02i", vol);
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490 gettimeofday(¬iceMsgTime, 0);
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491 prev_frame = Pico.m.frame_count;
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494 // set the right mixer func
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495 if (!(PicoOpt&8)) return; // just use defaults for mono
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497 PsndMix_32_to_16l = mix_32_to_16l_stereo;
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499 mix_32_to_16l_level = 5 - vol;
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500 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
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504 static void RunEvents(unsigned int which)
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506 if (which & 0x1800) // save or load (but not both)
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509 if ( emu_checkSaveFile(state_slot) &&
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510 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
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511 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save
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512 unsigned long keys;
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513 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");
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514 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )
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516 if (keys & GP2X_X) do_it = 0;
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517 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release
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522 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
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523 PicoStateProgressCB = emu_state_cb;
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524 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);
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525 emu_SaveLoadGame((which & 0x1000) >> 12, 0);
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526 PicoStateProgressCB = NULL;
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531 if (which & 0x0400) // switch renderer
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533 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
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534 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;
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535 else currentConfig.EmuOpt &= ~0x80;
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539 if (PicoOpt&0x10) {
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540 strcpy(noticeMsg, " 8bit fast renderer");
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541 } else if (currentConfig.EmuOpt&0x80) {
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542 strcpy(noticeMsg, "16bit accurate renderer");
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544 strcpy(noticeMsg, " 8bit accurate renderer");
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547 gettimeofday(¬iceMsgTime, 0);
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549 if (which & 0x0300)
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553 if(state_slot < 0) state_slot = 9;
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556 if(state_slot > 9) state_slot = 0;
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558 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
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559 gettimeofday(¬iceMsgTime, 0);
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561 if (which & 0x0080) {
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562 engineState = PGS_Menu;
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566 static void updateKeys(void)
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568 unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;
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569 static unsigned int prevEvents = 0;
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571 keys = gp2x_joystick_read(0);
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572 if (keys & GP2X_SELECT)
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573 engineState = select_exits ? PGS_Quit : PGS_Menu;
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575 keys &= CONFIGURABLE_KEYS;
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579 /* FIXME: combos, player2 */
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580 allActions[0] = in_update();
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582 for (i = 0; i < 32; i++)
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584 if (keys2 & (1 << i))
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586 int pl, acts = currentConfig.KeyBinds[i];
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587 if (!acts) continue;
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588 pl = (acts >> 16) & 1;
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589 if (kb_combo_keys & (1 << i))
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591 int u = i+1, acts_c = acts & kb_combo_acts;
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592 // let's try to find the other one
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594 for (; u < 32; u++)
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595 if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {
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596 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];
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597 keys2 &= ~((1 << i) | (1 << u));
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601 // add non-combo actions if combo ones were not found
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602 if (!acts_c || u == 32)
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603 allActions[pl] |= acts & ~kb_combo_acts;
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605 allActions[pl] |= acts;
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611 PicoPad[0] = allActions[0] & 0xfff;
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612 PicoPad[1] = allActions[1] & 0xfff;
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614 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);
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615 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);
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617 events = (allActions[0] | allActions[1]) >> 16;
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619 // volume is treated in special way and triggered every frame
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620 if (events & 0x6000)
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621 update_volume(1, events & 0x2000);
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623 if ((events ^ prevEvents) & 0x40) {
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624 emu_changeFastForward(events & 0x40);
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625 update_volume(0, 0);
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629 events &= ~prevEvents;
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631 if (PicoAHW == PAHW_PICO)
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632 RunEventsPico(events, keys);
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633 if (events) RunEvents(events);
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634 if (movie_data) emu_updateMovie();
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636 prevEvents = (allActions[0] | allActions[1]) >> 16;
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640 static void updateSound(int len)
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642 if (PicoOpt&8) len<<=1;
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644 /* avoid writing audio when lagging behind to prevent audio lag */
\r
645 if (PicoSkipFrame != 2)
\r
646 sndout_oss_write(PsndOut, len<<1);
\r
649 void emu_startSound(void)
\r
651 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
\r
652 int target_fps = Pico.m.pal ? 50 : 60;
\r
656 // prepare sound stuff
\r
657 if (currentConfig.EmuOpt & 4)
\r
659 int snd_excess_add;
\r
660 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||
\r
661 ((PicoOpt&0x200) && crashed_940)) {
\r
662 PsndRerate(Pico.m.frame_count ? 1 : 0);
\r
664 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
\r
665 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
\r
666 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
\r
667 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);
\r
668 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
\r
669 PicoWriteSound = updateSound;
\r
670 update_volume(0, 0);
\r
671 memset(sndBuffer, 0, sizeof(sndBuffer));
\r
672 PsndOut = sndBuffer;
\r
673 PsndRate_old = PsndRate;
\r
674 PicoOpt_old = PicoOpt;
\r
675 pal_old = Pico.m.pal;
\r
679 void emu_endSound(void)
\r
683 /* wait until we can write more sound */
\r
684 void emu_waitSound(void)
\r
686 // don't need to do anything, writes will block by themselves
\r
690 static void SkipFrame(int do_audio)
\r
692 PicoSkipFrame=do_audio ? 1 : 2;
\r
698 void emu_forcedFrame(int opts)
\r
700 int po_old = PicoOpt;
\r
701 int eo_old = currentConfig.EmuOpt;
\r
704 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites
\r
705 currentConfig.EmuOpt |= 0x80;
\r
708 PicoDrawSetColorFormat(1);
\r
709 PicoScanBegin = EmuScanBegin16;
\r
710 Pico.m.dirtyPal = 1;
\r
711 PicoFrameDrawOnly();
\r
714 if (!(Pico.video.reg[12]&1)) {
\r
715 vidCpyM2 = vidCpyM2_32col;
\r
717 } else vidCpyM2 = vidCpyM2_40col;
\r
719 vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);
\r
720 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
721 gp2x_video_setpalette(localPal, 0x40);
\r
724 currentConfig.EmuOpt = eo_old;
\r
727 void emu_platformDebugCat(char *str)
\r
732 static void simpleWait(int thissec, int lim_time)
\r
734 struct timeval tval;
\r
736 spend_cycles(1024);
\r
737 gettimeofday(&tval, 0);
\r
738 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
740 while (tval.tv_usec < lim_time)
\r
742 spend_cycles(1024);
\r
743 gettimeofday(&tval, 0);
\r
744 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
750 static void tga_dump(void)
\r
752 #define BYTE unsigned char
\r
753 #define WORD unsigned short
\r
756 BYTE IDLength; /* 00h Size of Image ID field */
\r
757 BYTE ColorMapType; /* 01h Color map type */
\r
758 BYTE ImageType; /* 02h Image type code */
\r
759 WORD CMapStart; /* 03h Color map origin */
\r
760 WORD CMapLength; /* 05h Color map length */
\r
761 BYTE CMapDepth; /* 07h Depth of color map entries */
\r
762 WORD XOffset; /* 08h X origin of image */
\r
763 WORD YOffset; /* 0Ah Y origin of image */
\r
764 WORD Width; /* 0Ch Width of image */
\r
765 WORD Height; /* 0Eh Height of image */
\r
766 BYTE PixelDepth; /* 10h Image pixel size */
\r
767 BYTE ImageDescriptor; /* 11h Image descriptor byte */
\r
768 } __attribute__((packed)) TGAHEAD;
\r
769 static unsigned short oldscr[320*240];
\r
770 FILE *f; char name[128]; int i;
\r
772 memset(&TGAHEAD, 0, sizeof(TGAHEAD));
\r
773 TGAHEAD.ImageType = 2;
\r
774 TGAHEAD.Width = 320;
\r
775 TGAHEAD.Height = 240;
\r
776 TGAHEAD.PixelDepth = 16;
\r
777 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
\r
779 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
\r
781 for (i = 0; i < 320*240; i++)
\r
782 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;
\r
785 for (i = 0; i < 320*240; i++)
\r
786 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);
\r
787 sprintf(name, "%05i.tga", Pico.m.frame_count);
\r
788 f = fopen(name, "wb");
\r
789 if (!f) { printf("!f\n"); exit(1); }
\r
790 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
\r
791 fwrite(oldscr, 1, 320*240*2, f);
\r
798 void emu_Loop(void)
\r
800 static int gp2x_old_clock = 200, EmuOpt_old = 0;
\r
801 char fpsbuff[24]; // fps count c string
\r
802 struct timeval tval; // timing
\r
803 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync
\r
804 int frames_done, frames_shown, thissec; // actual frames
\r
805 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;
\r
808 printf("entered emu_Loop()\n");
\r
810 if (gp2x_old_clock != currentConfig.CPUclock) {
\r
811 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
\r
812 set_FCLK(currentConfig.CPUclock);
\r
813 gp2x_old_clock = currentConfig.CPUclock;
\r
817 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {
\r
818 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
\r
819 gp2x_old_gamma = currentConfig.gamma;
\r
820 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
\r
823 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {
\r
824 if (currentConfig.EmuOpt&0x2000)
\r
825 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);
\r
826 else unset_LCD_custom_rate();
\r
829 EmuOpt_old = currentConfig.EmuOpt;
\r
832 // make sure we are in correct mode
\r
835 Pico.m.dirtyPal = 1;
\r
836 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
837 emu_findKeyBindCombos();
\r
839 // pal/ntsc might have changed, reset related stuff
\r
840 target_fps = Pico.m.pal ? 50 : 60;
\r
841 target_frametime = 1000000/target_fps;
\r
846 // prepare CD buffer
\r
847 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();
\r
849 // calc vsync offset to sync timing code with vsync
\r
850 if (currentConfig.EmuOpt&0x2000) {
\r
851 gettimeofday(&tval, 0);
\r
852 gp2x_video_wait_vsync();
\r
853 gettimeofday(&tval, 0);
\r
854 vsync_offset = tval.tv_usec;
\r
855 while (vsync_offset >= target_frametime)
\r
856 vsync_offset -= target_frametime;
\r
857 if (!vsync_offset) vsync_offset++;
\r
858 printf("vsync_offset: %i\n", vsync_offset);
\r
862 frames_done = frames_shown = thissec =
\r
863 pframes_done = pframes_shown = pthissec = 0;
\r
866 while (engineState == PGS_Running)
\r
870 gettimeofday(&tval, 0);
\r
871 if (reset_timing) {
\r
873 pthissec = tval.tv_sec;
\r
874 pframes_shown = pframes_done = tval.tv_usec/target_frametime;
\r
877 // show notice message?
\r
878 if (noticeMsgTime.tv_sec)
\r
880 static int noticeMsgSum;
\r
881 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec
\r
882 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;
\r
886 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
\r
887 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
\r
888 notice = noticeMsg;
\r
892 // check for mode changes
\r
893 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
\r
894 if (modes != oldmodes)
\r
897 osd_fps_x = OSD_FPS_X;
\r
899 vidCpyM2 = vidCpyM2_40col;
\r
901 if (PicoOpt & 0x100) {
\r
902 vidCpyM2 = vidCpyM2_32col_nobord;
\r
904 osd_fps_x = OSD_FPS_X - 64;
\r
906 vidCpyM2 = vidCpyM2_32col;
\r
909 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode
\r
910 gp2x_video_RGB_setscaling(8, scalex, 224);
\r
911 else gp2x_video_RGB_setscaling(0, scalex, 240);
\r
917 if (thissec != tval.tv_sec)
\r
920 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
921 if (++bench == 10) {
\r
923 bench_fps_s = bench_fps;
\r
924 bf[bfp++ & 3] = bench_fps;
\r
927 bench_fps += frames_shown;
\r
928 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
930 if (currentConfig.EmuOpt & 2) {
\r
931 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
932 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
935 frames_shown = frames_done = 0;
\r
936 thissec = tval.tv_sec;
\r
939 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
942 if (pthissec != tval.tv_sec)
\r
944 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
\r
945 pframes_done = pframes_shown = 0;
\r
947 // it is quite common for this implementation to leave 1 fame unfinished
\r
948 // when second changes, but we don't want buffer to starve.
\r
949 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {
\r
951 SkipFrame(1); pframes_done++;
\r
954 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;
\r
955 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;
\r
956 if (pframes_shown > pframes_done) pframes_shown = pframes_done;
\r
958 pthissec = tval.tv_sec;
\r
961 lim_time = (pframes_done+1) * target_frametime + vsync_offset;
\r
962 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
964 for(i = 0; i < currentConfig.Frameskip; i++) {
\r
966 SkipFrame(1); pframes_done++; frames_done++;
\r
967 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
\r
968 gettimeofday(&tval, 0);
\r
969 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
970 if (tval.tv_usec < lim_time) { // we are too fast
\r
971 simpleWait(pthissec, lim_time);
\r
974 lim_time += target_frametime;
\r
977 else if (tval.tv_usec > lim_time) // auto frameskip
\r
979 // no time left for this frame - skip
\r
980 if (tval.tv_usec - lim_time >= 300000) {
\r
981 /* something caused a slowdown for us (disk access? cache flush?)
\r
982 * try to recover by resetting timing... */
\r
987 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;
\r
995 gettimeofday(&tval, 0);
\r
996 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
998 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection
\r
1000 else if (PsndOut != NULL || currentConfig.Frameskip < 0)
\r
1002 // sleep or vsync if we are still too fast
\r
1003 // usleep sleeps for ~20ms minimum, so it is not a solution here
\r
1004 if (!reset_timing && tval.tv_usec < lim_time)
\r
1006 // we are too fast
\r
1007 if (vsync_offset) {
\r
1008 if (lim_time - tval.tv_usec > target_frametime/2)
\r
1009 simpleWait(pthissec, lim_time - target_frametime/4);
\r
1010 gp2x_video_wait_vsync();
\r
1012 simpleWait(pthissec, lim_time);
\r
1017 blit(fpsbuff, notice);
\r
1019 pframes_done++; pframes_shown++;
\r
1020 frames_done++; frames_shown++;
\r
1023 emu_changeFastForward(0);
\r
1025 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();
\r
1028 if((currentConfig.EmuOpt & 1) && SRam.changed) {
\r
1029 emu_state_cb("Writing SRAM/BRAM..");
\r
1030 emu_SaveLoadGame(0, 1);
\r
1034 // if in 8bit mode, generate 16bit image for menu background
\r
1035 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))
\r
1036 emu_forcedFrame(POPT_EN_SOFTSCALE);
\r
1040 void emu_ResetGame(void)
\r
1046 const char *plat_get_credits(void)
\r
1048 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"
\r
1050 "fDave: Cyclone 68000 core,\n"
\r
1051 " base code of PicoDrive\n"
\r
1052 "Reesy & FluBBa: DrZ80 core\n"
\r
1053 "MAME devs: YM2612 and SN76496 cores\n"
\r
1054 "rlyeh and others: minimal SDK\n"
\r
1055 "Squidge: squidgehack\n"
\r
1056 "Dzz: ARM940 sample\n"
\r
1057 "GnoStiC / Puck2099: USB joy code\n"
\r
1058 "craigix: GP2X hardware\n"
\r
1059 "ketchupgun: skin design\n"
\r
1061 "special thanks (for docs, ideas):\n"
\r
1062 " Charles MacDonald, Haze,\n"
\r
1063 " Stephane Dallongeville,\n"
\r
1064 " Lordus, Exophase, Rokas,\n"
\r
1065 " Nemesis, Tasco Deluxe";
\r