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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21 #include "../common/arm_utils.h"
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22 #include "../common/fonts.h"
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23 #include "../common/emu.h"
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24 #include "../common/config.h"
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25 #include "cpuctrl.h"
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27 #include <Pico/PicoInt.h>
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28 #include <Pico/Patch.h>
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29 #include <Pico/sound/mix.h>
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30 #include <zlib/zlib.h>
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35 #define OSD_FPS_X 220
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37 #define OSD_FPS_X 260
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42 int select_exits = 0;
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44 char romFileName[PATH_MAX];
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46 extern int crashed_940;
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48 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
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49 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing
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50 static int osd_fps_x;
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51 static int gp2x_old_gamma = 100;
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52 char noticeMsg[64]; // notice msg to draw
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53 unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer
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54 int reset_timing = 0;
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56 static int pico_pen_x = 0, pico_pen_y = 0, pico_inp_mode = 0;
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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 void 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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82 // make temp buffer for alt renderer
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83 PicoDraw2FB = malloc((8+320)*(8+240+8));
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86 printf("PicoDraw2FB == 0\n");
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89 // make dirs for saves, cfgs, etc.
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96 PicoMessage = emu_msg_cb;
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97 PicoMCDopenTray = emu_msg_tray_open;
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98 PicoMCDcloseTray = menu_loop_tray;
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102 static void scaling_update(void)
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104 PicoOpt &= ~0x4100;
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105 switch (currentConfig.scaling) {
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106 default: break; // off
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108 case 2: PicoOpt |= 0x0100; break; // hw hor+vert
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109 case 3: PicoOpt |= 0x4000; break; // sw hor
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114 void emu_Deinit(void)
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117 if((currentConfig.EmuOpt & 1) && SRam.changed) {
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118 emu_SaveLoadGame(0, 1);
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122 if (!(currentConfig.EmuOpt & 0x20)) {
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123 config_writelrom(PicoConfigFile);
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134 if (gp2x_old_gamma != 100)
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138 void emu_prepareDefaultConfig(void)
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140 memset(&defaultConfig, 0, sizeof(defaultConfig));
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141 defaultConfig.EmuOpt = 0x1d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds
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142 defaultConfig.s_PicoOpt = 0x0f | 0x20e00; // | <- use_940, cd_pcm, cd_cdda, svp drc
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143 defaultConfig.s_PsndRate = 44100;
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144 defaultConfig.s_PicoRegion = 0; // auto
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145 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
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146 defaultConfig.s_PicoCDBuffers = 0;
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147 defaultConfig.Frameskip = -1; // auto
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148 defaultConfig.CPUclock = 200;
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149 defaultConfig.volume = 50;
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150 defaultConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU
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151 defaultConfig.KeyBinds[ 4] = 1<<1;
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152 defaultConfig.KeyBinds[ 2] = 1<<2;
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153 defaultConfig.KeyBinds[ 6] = 1<<3;
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154 defaultConfig.KeyBinds[14] = 1<<4;
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155 defaultConfig.KeyBinds[13] = 1<<5;
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156 defaultConfig.KeyBinds[12] = 1<<6;
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157 defaultConfig.KeyBinds[ 8] = 1<<7;
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158 defaultConfig.KeyBinds[15] = 1<<26; // switch rend
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159 defaultConfig.KeyBinds[10] = 1<<27; // save state
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160 defaultConfig.KeyBinds[11] = 1<<28; // load state
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161 defaultConfig.KeyBinds[23] = 1<<29; // vol up
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162 defaultConfig.KeyBinds[22] = 1<<30; // vol down
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163 defaultConfig.gamma = 100;
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164 defaultConfig.scaling = 0;
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167 void emu_setDefaultConfig(void)
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169 memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
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170 PicoOpt = currentConfig.s_PicoOpt;
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171 PsndRate = currentConfig.s_PsndRate;
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172 PicoRegionOverride = currentConfig.s_PicoRegion;
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173 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
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174 PicoCDBuffers = currentConfig.s_PicoCDBuffers;
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177 void osd_text(int x, int y, const char *text)
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179 int len = strlen(text)*8;
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181 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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183 x &= ~3; // align x
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184 len = (len+3) >> 2;
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185 for (h = 0; h < 8; h++) {
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186 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));
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187 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
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189 emu_textOut8(x, y, text);
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192 x &= ~1; // align x
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193 len = (len+1) >> 1;
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194 for (h = 0; h < 8; h++) {
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195 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));
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196 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;
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198 emu_textOut16(x, y, text);
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202 static void cd_leds(void)
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206 // if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?
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207 old_reg = Pico_mcd->s68k_regs[0];
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209 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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211 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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212 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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213 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =
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214 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =
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215 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;
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216 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =
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217 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =
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218 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;
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221 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);
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222 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
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223 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
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224 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
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225 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
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226 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
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230 static int EmuScanBegin16(unsigned int num)
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232 if (!(Pico.video.reg[1]&8)) num += 8;
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233 DrawLineDest = (unsigned short *) gp2x_screen + 320 * num;
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238 static int EmuScanBegin8(unsigned int num)
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240 if (!(Pico.video.reg[1]&8)) num += 8;
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241 DrawLineDest = (unsigned char *) gp2x_screen + 320 * num;
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246 int localPal[0x100];
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247 static void (*vidCpyM2)(void *dest, void *src) = NULL;
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249 static void blit(const char *fps, const char *notice)
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251 int emu_opt = currentConfig.EmuOpt;
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255 // 8bit fast renderer
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256 if (Pico.m.dirtyPal) {
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257 Pico.m.dirtyPal = 0;
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258 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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259 // feed new palette to our device
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260 gp2x_video_setpalette(localPal, 0x40);
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263 if (PicoRead16Hook == PicoSVPRead16)
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264 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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266 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);
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268 else if (!(emu_opt&0x80))
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270 // 8bit accurate renderer
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271 if (Pico.m.dirtyPal)
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273 Pico.m.dirtyPal = 0;
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274 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode
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275 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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276 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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277 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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278 memcpy32(localPal+0xc0, localPal+0x40, 0x40);
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279 localPal[0xc0] = 0x0000c000;
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280 localPal[0xd0] = 0x00c00000;
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281 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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282 localPal[0xf0] = 0x00ffffff;
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283 gp2x_video_setpalette(localPal, 0x100);
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284 } else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
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285 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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286 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
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287 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
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288 gp2x_video_setpalette(localPal, 0xc0);
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290 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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291 gp2x_video_setpalette(localPal, 0x40);
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296 if (notice || (emu_opt & 2)) {
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298 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;
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299 if (notice) osd_text(4, h, notice);
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301 osd_text(osd_fps_x, h, fps);
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303 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
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306 //gp2x_video_wait_vsync();
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309 if (!(PicoOpt&0x10)) {
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310 if (!(Pico.video.reg[1]&8)) {
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311 if (currentConfig.EmuOpt&0x80) {
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312 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;
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314 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;
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317 DrawLineDest = gp2x_screen;
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323 // clears whole screen or just the notice area (in all buffers)
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324 static void clearArea(int full)
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326 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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328 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
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329 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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331 // 16bit accurate renderer
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332 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);
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333 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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338 static void vidResetMode(void)
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340 if (PicoOpt&0x10) {
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341 gp2x_video_changemode(8);
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342 } else if (currentConfig.EmuOpt&0x80) {
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343 gp2x_video_changemode(16);
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344 PicoDrawSetColorFormat(1);
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345 PicoScanBegin = EmuScanBegin16;
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347 gp2x_video_changemode(8);
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348 PicoDrawSetColorFormat(2);
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349 PicoScanBegin = EmuScanBegin8;
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351 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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352 // setup pal for 8-bit modes
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353 localPal[0xc0] = 0x0000c000; // MCD LEDs
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354 localPal[0xd0] = 0x00c00000;
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355 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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356 localPal[0xf0] = 0x00ffffff;
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357 gp2x_video_setpalette(localPal, 0x100);
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358 gp2x_memset_all_buffers(0, 0xe0, 320*240);
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361 Pico.m.dirtyPal = 1;
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363 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))
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364 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
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365 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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369 static void emu_msg_cb(const char *msg)
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371 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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373 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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374 osd_text(4, 232, msg);
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375 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);
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377 // 16bit accurate renderer
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378 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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379 osd_text(4, 232, msg);
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380 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);
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382 gettimeofday(¬iceMsgTime, 0);
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383 noticeMsgTime.tv_sec -= 2;
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385 /* assumption: emu_msg_cb gets called only when something slow is about to happen */
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389 static void emu_state_cb(const char *str)
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395 static void emu_msg_tray_open(void)
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397 strcpy(noticeMsg, "CD tray opened");
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398 gettimeofday(¬iceMsgTime, 0);
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401 static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)
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403 if (events & (1 << 3)) {
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405 if (pico_inp_mode > 2) pico_inp_mode = 0;
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406 switch (pico_inp_mode) {
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407 case 0: strcpy(noticeMsg, "Input: Joytick "); break;
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408 case 1: strcpy(noticeMsg, "Input: Pen on Storyware"); break;
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409 case 2: strcpy(noticeMsg, "Input: Pen on Pad "); break;
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411 gettimeofday(¬iceMsgTime, 0);
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413 if (events & (1 << 4)) {
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415 if (PicoPicoPage < 0) PicoPicoPage = 0;
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416 sprintf(noticeMsg, "Page %i ", PicoPicoPage);
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417 gettimeofday(¬iceMsgTime, 0);
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419 if (events & (1 << 5)) {
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421 if (PicoPicoPage > 6) PicoPicoPage = 6;
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422 sprintf(noticeMsg, "Page %i ", PicoPicoPage);
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423 gettimeofday(¬iceMsgTime, 0);
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425 if (pico_inp_mode != 0) {
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426 PicoPad[0] &= ~0x0f; // release UDLR
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427 if (gp2x_keys & GP2X_UP) { pico_pen_y--; if (pico_pen_y < 0) pico_pen_y = 0; }
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428 if (gp2x_keys & GP2X_DOWN) { pico_pen_y++; if (pico_pen_y > 251) pico_pen_y = 251; }
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429 if (gp2x_keys & GP2X_LEFT) { pico_pen_x--; if (pico_pen_x < 0) pico_pen_x = 0; }
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430 if (gp2x_keys & GP2X_RIGHT){ pico_pen_x++; if (pico_pen_x > 353) pico_pen_x = 353; }
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431 PicoPicoPenPos[0] = 0x03c + pico_pen_x;
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432 PicoPicoPenPos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
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436 static void update_volume(int has_changed, int is_up)
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438 static int prev_frame = 0, wait_frames = 0;
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439 int vol = currentConfig.volume;
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443 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
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447 if (vol < 99) vol++;
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449 if (vol > 0) vol--;
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452 gp2x_sound_volume(vol, vol);
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453 currentConfig.volume = vol;
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455 sprintf(noticeMsg, "VOL: %02i", vol);
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456 gettimeofday(¬iceMsgTime, 0);
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457 prev_frame = Pico.m.frame_count;
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460 // set the right mixer func
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461 if (!(PicoOpt&8)) return; // just use defaults for mono
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463 PsndMix_32_to_16l = mix_32_to_16l_stereo;
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465 mix_32_to_16l_level = 5 - vol;
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466 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
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470 static void change_fast_forward(int set_on)
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472 static void *set_PsndOut = NULL;
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473 static int set_Frameskip, set_EmuOpt, is_on = 0;
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475 if (set_on && !is_on) {
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476 set_PsndOut = PsndOut;
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477 set_Frameskip = currentConfig.Frameskip;
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478 set_EmuOpt = currentConfig.EmuOpt;
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480 currentConfig.Frameskip = 8;
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481 currentConfig.EmuOpt &= ~4;
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484 else if (!set_on && is_on) {
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485 PsndOut = set_PsndOut;
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486 currentConfig.Frameskip = set_Frameskip;
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487 currentConfig.EmuOpt = set_EmuOpt;
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489 update_volume(0, 0);
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495 static void RunEvents(unsigned int which)
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497 if (which & 0x1800) // save or load (but not both)
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500 if ( emu_checkSaveFile(state_slot) &&
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501 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
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502 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save
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503 unsigned long keys;
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504 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");
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505 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )
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507 if (keys & GP2X_X) do_it = 0;
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508 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release
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513 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
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514 PicoStateProgressCB = emu_state_cb;
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515 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);
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516 emu_SaveLoadGame((which & 0x1000) >> 12, 0);
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517 PicoStateProgressCB = NULL;
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522 if (which & 0x0400) // switch renderer
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524 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
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525 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;
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526 else currentConfig.EmuOpt &= ~0x80;
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530 if (PicoOpt&0x10) {
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531 strcpy(noticeMsg, " 8bit fast renderer");
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532 } else if (currentConfig.EmuOpt&0x80) {
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533 strcpy(noticeMsg, "16bit accurate renderer");
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535 strcpy(noticeMsg, " 8bit accurate renderer");
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538 gettimeofday(¬iceMsgTime, 0);
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540 if (which & 0x0300)
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544 if(state_slot < 0) state_slot = 9;
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547 if(state_slot > 9) state_slot = 0;
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549 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
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550 gettimeofday(¬iceMsgTime, 0);
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552 if (which & 0x0080) {
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553 engineState = PGS_Menu;
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558 static void updateKeys(void)
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560 unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;
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561 static unsigned int prevEvents = 0;
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564 keys = gp2x_joystick_read(0);
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565 if (keys & GP2X_SELECT) {
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566 engineState = select_exits ? PGS_Quit : PGS_Menu;
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567 // wait until select is released, so menu would not resume game
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568 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);
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571 keys &= CONFIGURABLE_KEYS;
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574 for (i = 0; i < 32; i++)
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576 if (keys2 & (1 << i))
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578 int pl, acts = currentConfig.KeyBinds[i];
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579 if (!acts) continue;
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580 pl = (acts >> 16) & 1;
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581 if (kb_combo_keys & (1 << i))
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583 int u = i+1, acts_c = acts & kb_combo_acts;
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584 // let's try to find the other one
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586 for (; u < 32; u++)
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587 if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {
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588 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];
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589 keys2 &= ~((1 << i) | (1 << u));
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593 // add non-combo actions if combo ones were not found
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594 if (!acts_c || u == 32)
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595 allActions[pl] |= acts & ~kb_combo_acts;
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597 allActions[pl] |= acts;
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603 if (num_of_joys > 0)
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605 gp2x_usbjoy_update();
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606 for (joy = 0; joy < num_of_joys; joy++) {
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607 int btns = gp2x_usbjoy_check2(joy);
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608 for (i = 0; i < 32; i++) {
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609 if (btns & (1 << i)) {
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610 int acts = currentConfig.JoyBinds[joy][i];
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611 int pl = (acts >> 16) & 1;
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612 allActions[pl] |= acts;
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618 PicoPad[0] = (unsigned short) allActions[0];
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619 PicoPad[1] = (unsigned short) allActions[1];
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621 events = (allActions[0] | allActions[1]) >> 16;
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623 // volume is treated in special way and triggered every frame
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624 if (events & 0x6000)
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625 update_volume(1, events & 0x2000);
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627 if ((events ^ prevEvents) & 0x40)
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628 change_fast_forward(events & 0x40);
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630 events &= ~prevEvents;
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632 if (PicoAHW == PAHW_PICO)
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633 RunEventsPico(events, keys);
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635 if (events) RunEvents(events);
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636 if (movie_data) emu_updateMovie();
\r
638 prevEvents = (allActions[0] | allActions[1]) >> 16;
\r
642 static void updateSound(int len)
\r
644 if (PicoOpt&8) len<<=1;
\r
646 /* avoid writing audio when lagging behind to prevent audio lag */
\r
647 if (PicoSkipFrame != 2)
\r
648 gp2x_sound_write(PsndOut, len<<1);
\r
652 static void SkipFrame(int do_audio)
\r
654 PicoSkipFrame=do_audio ? 1 : 2;
\r
660 void emu_forcedFrame(void)
\r
662 int po_old = PicoOpt;
\r
663 int eo_old = currentConfig.EmuOpt;
\r
665 PicoOpt &= ~0x0010;
\r
666 PicoOpt |= 0x4080; // soft_scale | acc_sprites
\r
667 currentConfig.EmuOpt |= 0x80;
\r
670 PicoDrawSetColorFormat(1);
\r
671 PicoScanBegin = EmuScanBegin16;
\r
672 Pico.m.dirtyPal = 1;
\r
673 PicoFrameDrawOnly();
\r
676 if (!(Pico.video.reg[12]&1)) {
\r
677 vidCpyM2 = vidCpyM2_32col;
\r
679 } else vidCpyM2 = vidCpyM2_40col;
\r
681 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);
\r
682 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
\r
683 gp2x_video_setpalette(localPal, 0x40);
\r
686 currentConfig.EmuOpt = eo_old;
\r
689 static void simpleWait(int thissec, int lim_time)
\r
691 struct timeval tval;
\r
693 spend_cycles(1024);
\r
694 gettimeofday(&tval, 0);
\r
695 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
697 while (tval.tv_usec < lim_time)
\r
699 spend_cycles(1024);
\r
700 gettimeofday(&tval, 0);
\r
701 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
707 static void tga_dump(void)
\r
709 #define BYTE unsigned char
\r
710 #define WORD unsigned short
\r
713 BYTE IDLength; /* 00h Size of Image ID field */
\r
714 BYTE ColorMapType; /* 01h Color map type */
\r
715 BYTE ImageType; /* 02h Image type code */
\r
716 WORD CMapStart; /* 03h Color map origin */
\r
717 WORD CMapLength; /* 05h Color map length */
\r
718 BYTE CMapDepth; /* 07h Depth of color map entries */
\r
719 WORD XOffset; /* 08h X origin of image */
\r
720 WORD YOffset; /* 0Ah Y origin of image */
\r
721 WORD Width; /* 0Ch Width of image */
\r
722 WORD Height; /* 0Eh Height of image */
\r
723 BYTE PixelDepth; /* 10h Image pixel size */
\r
724 BYTE ImageDescriptor; /* 11h Image descriptor byte */
\r
725 } __attribute__((packed)) TGAHEAD;
\r
726 static unsigned short oldscr[320*240];
\r
727 FILE *f; char name[128]; int i;
\r
729 memset(&TGAHEAD, 0, sizeof(TGAHEAD));
\r
730 TGAHEAD.ImageType = 2;
\r
731 TGAHEAD.Width = 320;
\r
732 TGAHEAD.Height = 240;
\r
733 TGAHEAD.PixelDepth = 16;
\r
734 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
\r
736 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
\r
738 for (i = 0; i < 320*240; i++)
\r
739 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;
\r
742 for (i = 0; i < 320*240; i++)
\r
743 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);
\r
744 sprintf(name, "%05i.tga", Pico.m.frame_count);
\r
745 f = fopen(name, "wb");
\r
746 if (!f) { printf("!f\n"); exit(1); }
\r
747 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
\r
748 fwrite(oldscr, 1, 320*240*2, f);
\r
755 void emu_Loop(void)
\r
757 static int gp2x_old_clock = 200;
\r
758 static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;
\r
759 char fpsbuff[24]; // fps count c string
\r
760 struct timeval tval; // timing
\r
761 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync
\r
762 int frames_done, frames_shown, thissec; // actual frames
\r
763 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;
\r
766 printf("entered emu_Loop()\n");
\r
768 if (gp2x_old_clock != currentConfig.CPUclock) {
\r
769 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
\r
770 set_FCLK(currentConfig.CPUclock);
\r
771 gp2x_old_clock = currentConfig.CPUclock;
\r
775 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {
\r
776 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
\r
777 gp2x_old_gamma = currentConfig.gamma;
\r
778 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
\r
781 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {
\r
782 if (currentConfig.EmuOpt&0x2000)
\r
783 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);
\r
784 else unset_LCD_custom_rate();
\r
787 EmuOpt_old = currentConfig.EmuOpt;
\r
790 // make sure we are in correct mode
\r
793 Pico.m.dirtyPal = 1;
\r
794 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
795 emu_findKeyBindCombos();
\r
797 // pal/ntsc might have changed, reset related stuff
\r
798 target_fps = Pico.m.pal ? 50 : 60;
\r
799 target_frametime = 1000000/target_fps;
\r
802 // prepare sound stuff
\r
803 if (currentConfig.EmuOpt & 4)
\r
805 int snd_excess_add;
\r
806 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||
\r
807 ((PicoOpt&0x200) && crashed_940)) {
\r
808 PsndRerate(Pico.m.frame_count ? 1 : 0);
\r
810 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
\r
811 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
\r
812 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
\r
813 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);
\r
814 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);
\r
815 PicoWriteSound = updateSound;
\r
816 update_volume(0, 0);
\r
817 memset(sndBuffer, 0, sizeof(sndBuffer));
\r
818 PsndOut = sndBuffer;
\r
819 PsndRate_old = PsndRate;
\r
820 PicoOpt_old = PicoOpt;
\r
821 pal_old = Pico.m.pal;
\r
826 // prepare CD buffer
\r
827 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();
\r
829 // calc vsync offset to sync timing code with vsync
\r
830 if (currentConfig.EmuOpt&0x2000) {
\r
831 gettimeofday(&tval, 0);
\r
832 gp2x_video_wait_vsync();
\r
833 gettimeofday(&tval, 0);
\r
834 vsync_offset = tval.tv_usec;
\r
835 while (vsync_offset >= target_frametime)
\r
836 vsync_offset -= target_frametime;
\r
837 if (!vsync_offset) vsync_offset++;
\r
838 printf("vsync_offset: %i\n", vsync_offset);
\r
842 frames_done = frames_shown = thissec =
\r
843 pframes_done = pframes_shown = pthissec = 0;
\r
846 while (engineState == PGS_Running)
\r
850 gettimeofday(&tval, 0);
\r
851 if (reset_timing) {
\r
853 pthissec = tval.tv_sec;
\r
854 pframes_shown = pframes_done = tval.tv_usec/target_frametime;
\r
857 // show notice message?
\r
858 if (noticeMsgTime.tv_sec)
\r
860 static int noticeMsgSum;
\r
861 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec
\r
862 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;
\r
866 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
\r
867 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
\r
868 notice = noticeMsg;
\r
872 // check for mode changes
\r
873 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
\r
874 if (modes != oldmodes)
\r
877 osd_fps_x = OSD_FPS_X;
\r
879 vidCpyM2 = vidCpyM2_40col;
\r
881 if (PicoOpt & 0x100) {
\r
882 vidCpyM2 = vidCpyM2_32col_nobord;
\r
884 osd_fps_x = OSD_FPS_X - 64;
\r
886 vidCpyM2 = vidCpyM2_32col;
\r
889 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode
\r
890 gp2x_video_RGB_setscaling(8, scalex, 224);
\r
891 else gp2x_video_RGB_setscaling(0, scalex, 240);
\r
897 if (thissec != tval.tv_sec)
\r
900 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
901 if (++bench == 10) {
\r
903 bench_fps_s = bench_fps;
\r
904 bf[bfp++ & 3] = bench_fps;
\r
907 bench_fps += frames_shown;
\r
908 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
910 if (currentConfig.EmuOpt & 2) {
\r
911 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
912 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
915 frames_shown = frames_done = 0;
\r
916 thissec = tval.tv_sec;
\r
919 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
922 if (pthissec != tval.tv_sec)
\r
924 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
\r
925 pframes_done = pframes_shown = 0;
\r
927 // it is quite common for this implementation to leave 1 fame unfinished
\r
928 // when second changes, but we don't want buffer to starve.
\r
929 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {
\r
931 SkipFrame(1); pframes_done++;
\r
934 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;
\r
935 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;
\r
936 if (pframes_shown > pframes_done) pframes_shown = pframes_done;
\r
938 pthissec = tval.tv_sec;
\r
941 lim_time = (pframes_done+1) * target_frametime + vsync_offset;
\r
942 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
944 for(i = 0; i < currentConfig.Frameskip; i++) {
\r
946 SkipFrame(1); pframes_done++; frames_done++;
\r
947 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
\r
948 gettimeofday(&tval, 0);
\r
949 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
950 if (tval.tv_usec < lim_time) { // we are too fast
\r
951 simpleWait(pthissec, lim_time);
\r
954 lim_time += target_frametime;
\r
957 else if (tval.tv_usec > lim_time) // auto frameskip
\r
959 // no time left for this frame - skip
\r
960 if (tval.tv_usec - lim_time >= 300000) {
\r
961 /* something caused a slowdown for us (disk access? cache flush?)
\r
962 * try to recover by resetting timing... */
\r
967 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;
\r
975 gettimeofday(&tval, 0);
\r
976 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
978 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection
\r
980 else if (PsndOut != NULL || currentConfig.Frameskip < 0)
\r
982 // sleep or vsync if we are still too fast
\r
983 // usleep sleeps for ~20ms minimum, so it is not a solution here
\r
984 if (!reset_timing && tval.tv_usec < lim_time)
\r
987 if (vsync_offset) {
\r
988 if (lim_time - tval.tv_usec > target_frametime/2)
\r
989 simpleWait(pthissec, lim_time - target_frametime/4);
\r
990 gp2x_video_wait_vsync();
\r
992 simpleWait(pthissec, lim_time);
\r
997 blit(fpsbuff, notice);
\r
999 pframes_done++; pframes_shown++;
\r
1000 frames_done++; frames_shown++;
\r
1003 change_fast_forward(0);
\r
1005 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();
\r
1008 if((currentConfig.EmuOpt & 1) && SRam.changed) {
\r
1009 emu_state_cb("Writing SRAM/BRAM..");
\r
1010 emu_SaveLoadGame(0, 1);
\r
1014 // if in 8bit mode, generate 16bit image for menu background
\r
1015 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))
\r
1016 emu_forcedFrame();
\r
1020 void emu_ResetGame(void)
\r