1 // (c) Copyright 2006-2009 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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11 #include "plat_gp2x.h"
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13 #include "../common/plat.h"
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14 #include "../common/menu.h"
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15 #include "../common/arm_utils.h"
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16 #include "../common/fonts.h"
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17 #include "../common/emu.h"
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18 #include "../common/config.h"
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19 #include "../linux/sndout_oss.h"
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20 #include "version.h"
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22 #include <pico/pico_int.h>
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23 #include <pico/patch.h>
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24 #include <pico/sound/mix.h>
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25 #include <zlib/zlib.h>
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30 #define OSD_FPS_X 220
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32 #define OSD_FPS_X 260
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36 extern int crashed_940;
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38 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
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39 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing
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40 static char noticeMsg[40];
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41 static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];
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42 unsigned char *PicoDraw2FB = PicoDraw2FB_;
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43 static int osd_fps_x;
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45 extern void *gp2x_screens[4];
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47 void plat_status_msg(const char *format, ...)
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51 va_start(vl, format);
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52 vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);
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55 gettimeofday(¬iceMsgTime, 0);
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58 int plat_get_root_dir(char *dst, int len)
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60 extern char **g_argv;
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63 strncpy(dst, g_argv[0], len);
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64 len -= 32; // reserve
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65 if (len < 0) len = 0;
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67 for (j = strlen(dst); j > 0; j--)
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68 if (dst[j] == '/') { dst[j+1] = 0; break; }
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74 static void scaling_update(void)
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76 PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);
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77 switch (currentConfig.scaling) {
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79 case EOPT_SCALE_HW_H:
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80 case EOPT_SCALE_HW_HV:
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81 PicoOpt |= POPT_DIS_32C_BORDER;
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83 case EOPT_SCALE_SW_H:
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84 PicoOpt |= POPT_EN_SOFTSCALE;
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90 void pemu_prep_defconfig(void)
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94 memset(&defaultConfig, 0, sizeof(defaultConfig));
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95 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_CONFIRM_SAVE|EOPT_EN_CD_LEDS;
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96 defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;
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97 defaultConfig.s_PsndRate = 44100;
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98 defaultConfig.s_PicoRegion = 0; // auto
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99 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
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100 defaultConfig.s_PicoCDBuffers = 0;
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101 defaultConfig.Frameskip = -1; // auto
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102 defaultConfig.CPUclock = default_cpu_clock;
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103 defaultConfig.volume = 50;
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104 defaultConfig.gamma = 100;
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105 defaultConfig.scaling = 0;
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106 defaultConfig.turbo_rate = 15;
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108 soc = soc_detect();
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109 if (soc == SOCID_MMSP2)
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110 defaultConfig.s_PicoOpt |= POPT_EXT_FM;
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111 else if (soc == SOCID_POLLUX)
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112 defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX;
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115 static void (*osd_text)(int x, int y, const char *text);
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117 static void osd_text8(int x, int y, const char *text)
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119 int len = strlen(text)*8;
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120 int *p, i, h, offs;
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122 len = (len+3) >> 2;
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123 for (h = 0; h < 8; h++) {
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124 offs = (x + g_screen_width * (y+h)) & ~3;
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125 p = (int *) ((char *)g_screen_ptr + offs);
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126 for (i = len; i; i--, p++)
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129 emu_text_out8(x, y, text);
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132 static void osd_text16(int x, int y, const char *text)
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134 int len = strlen(text)*8;
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135 int *p, i, h, offs;
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137 len = (len+1) >> 1;
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138 for (h = 0; h < 8; h++) {
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139 offs = (x + g_screen_width * (y+h)) & ~1;
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140 p = (int *) ((short *)g_screen_ptr + offs);
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141 for (i = len; i; i--, p++)
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142 *p = (*p >> 2) & 0x39e7;
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144 emu_text_out16(x, y, text);
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147 static void osd_text8_rot(int x, int y, const char *text)
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149 int len = strlen(text) * 8;
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150 char *p = (char *)g_screen_ptr + 240*(320-x) + y;
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153 memset(p, 0xe0, 8);
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157 emu_text_out8_rot(x, y, text);
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160 static void osd_text16_rot(int x, int y, const char *text)
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162 int len = strlen(text) * 8;
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163 short *p = (short *)g_screen_ptr + 240*(320-x) + y;
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170 emu_text_out16_rot(x, y, text);
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173 static void draw_cd_leds(void)
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175 int led_reg, pitch, scr_offs, led_offs;
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176 led_reg = Pico_mcd->s68k_regs[0];
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178 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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180 led_offs = -pitch * 6;
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181 scr_offs = pitch * (320 - 4);
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185 scr_offs = pitch * 2 + 4;
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188 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {
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189 #define p(x) px[(x) >> 2]
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191 unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);
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192 unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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193 unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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194 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
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195 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
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198 #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]
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200 unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);
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201 unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;
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202 unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;
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203 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
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204 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
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209 static void draw_pico_ptr(void)
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211 unsigned short *p = (unsigned short *)g_screen_ptr;
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212 int x, y, pitch = 320;
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214 // only if pen enabled and for 16bit modes
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215 if (pico_inp_mode == 0 || (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))
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218 x = pico_pen_x + PICO_PEN_ADJUST_X;
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219 y = pico_pen_y + PICO_PEN_ADJUST_Y;
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220 if (!(Pico.video.reg[12]&1) && !(PicoOpt & POPT_DIS_32C_BORDER))
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223 if (EOPT_WIZ_TEAR_FIX) {
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225 p += (319 - x) * pitch + y;
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227 p += x + y * pitch;
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230 p[pitch-1] ^= 0xffff;
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231 p[pitch] ^= 0xffff;
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232 p[pitch+1] ^= 0xffff;
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233 p[pitch*2] ^= 0xffff;
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236 static int EmuScanBegin16(unsigned int num)
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238 if (!(Pico.video.reg[1]&8)) num += 8;
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239 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;
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244 static int EmuScanBegin8(unsigned int num)
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246 if (!(Pico.video.reg[1]&8)) num += 8;
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247 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;
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252 /* rot thing for Wiz */
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253 static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];
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255 static int EmuScanBegin16_rot(unsigned int num)
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257 DrawLineDest = rot_buff + (num & 3) * 320 * 2;
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261 static int EmuScanEnd16_rot(unsigned int num)
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263 if ((num & 3) != 3)
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265 if (!(Pico.video.reg[1] & 8))
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267 rotated_blit16(g_screen_ptr, rot_buff, num + 1,
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268 !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));
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272 static int EmuScanBegin8_rot(unsigned int num)
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274 DrawLineDest = rot_buff + (num & 3) * 320;
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278 static int EmuScanEnd8_rot(unsigned int num)
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280 if ((num & 3) != 3)
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282 if (!(Pico.video.reg[1] & 8))
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284 rotated_blit8(g_screen_ptr, rot_buff, num + 1,
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285 !(Pico.video.reg[12] & 1));
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289 int localPal[0x100];
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290 static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border) = NULL;
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292 static void blit(const char *fps, const char *notice)
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294 int emu_opt = currentConfig.EmuOpt;
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296 if (PicoOpt & POPT_ALT_RENDERER)
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298 // 8bit fast renderer
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299 if (Pico.m.dirtyPal) {
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300 Pico.m.dirtyPal = 0;
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301 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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302 // feed new palette to our device
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303 gp2x_video_setpalette(localPal, 0x40);
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306 if (PicoRead16Hook == PicoSVPRead16)
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307 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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309 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,
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310 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));
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312 else if (!(emu_opt & EOPT_16BPP))
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314 // 8bit accurate renderer
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315 if (Pico.m.dirtyPal)
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318 Pico.m.dirtyPal = 0;
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319 if (Pico.video.reg[0xC]&8) // shadow/hilight mode
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321 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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322 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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323 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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324 memcpy32(localPal+0xc0, localPal+0x40, 0x40);
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327 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
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328 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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329 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
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330 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
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333 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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334 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess
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336 if (pallen > 0xc0) {
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337 localPal[0xc0] = 0x0000c000;
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338 localPal[0xd0] = 0x00c00000;
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339 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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340 localPal[0xf0] = 0x00ffffff;
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342 gp2x_video_setpalette(localPal, pallen);
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346 if (notice || (emu_opt & 2)) {
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348 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))
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351 osd_text(4, h, notice);
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353 osd_text(osd_fps_x, h, fps);
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355 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
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357 if (PicoAHW & PAHW_PICO)
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363 // clears whole screen or just the notice area (in all buffers)
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364 static void clearArea(int full)
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366 int is_8bit = (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP);
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367 if (!full && (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)) {
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371 for (i = 0; i < 4; i++) {
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372 p = (int *)gp2x_screens[i] + (240-8) / 4;
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373 for (u = 320; u > 0; u--, p += 240/4)
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374 p[0] = p[1] = 0xe0e0e0e0;
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377 for (i = 0; i < 4; i++) {
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378 p = (int *)gp2x_screens[i] + (240-8)*2 / 4;
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379 for (u = 320; u > 0; u--, p += 240*2/4)
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380 p[0] = p[1] = p[2] = p[3] = 0;
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388 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
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389 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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391 // 16bit accurate renderer
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392 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);
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393 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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397 void plat_status_msg_busy_next(const char *msg)
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402 /* assumption: msg_busy_next gets called only when
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403 * something slow is about to happen */
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407 void plat_status_msg_busy_first(const char *msg)
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409 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);
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410 plat_status_msg_busy_next(msg);
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413 static void vidResetMode(void)
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415 PicoScanEnd = NULL;
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417 if (PicoOpt & POPT_ALT_RENDERER) {
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418 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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419 gp2x_video_changemode(-8);
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420 vidcpyM2 = vidcpy_m2_rot;
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421 osd_text = osd_text8_rot;
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423 gp2x_video_changemode(8);
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424 vidcpyM2 = vidcpy_m2;
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425 osd_text = osd_text8;
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428 else if (currentConfig.EmuOpt & EOPT_16BPP) {
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429 PicoDrawSetColorFormat(1);
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430 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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431 gp2x_video_changemode(-16);
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432 PicoScanBegin = EmuScanBegin16_rot;
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433 PicoScanEnd = EmuScanEnd16_rot;
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434 osd_text = osd_text16_rot;
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436 gp2x_video_changemode(16);
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437 PicoScanBegin = EmuScanBegin16;
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438 osd_text = osd_text16;
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442 PicoDrawSetColorFormat(2);
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443 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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444 gp2x_video_changemode(-8);
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445 PicoScanBegin = EmuScanBegin8_rot;
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446 PicoScanEnd = EmuScanEnd8_rot;
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447 osd_text = osd_text8_rot;
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449 gp2x_video_changemode(8);
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450 PicoScanBegin = EmuScanBegin8;
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451 osd_text = osd_text8;
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455 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {
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456 // setup pal for 8-bit modes
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457 localPal[0xc0] = 0x0000c000; // MCD LEDs
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458 localPal[0xd0] = 0x00c00000;
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459 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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460 localPal[0xf0] = 0x00ffffff;
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461 gp2x_video_setpalette(localPal, 0x100);
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462 gp2x_memset_all_buffers(0, 0xe0, 320*240);
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465 Pico.m.dirtyPal = 1;
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468 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))
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469 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
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470 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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473 void plat_video_toggle_renderer(int is_next, int is_menu)
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475 /* alt, 16bpp, 8bpp */
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476 if (PicoOpt & POPT_ALT_RENDERER) {
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477 PicoOpt &= ~POPT_ALT_RENDERER;
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479 currentConfig.EmuOpt |= EOPT_16BPP;
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480 } else if (!(currentConfig.EmuOpt & EOPT_16BPP)) {
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482 PicoOpt |= POPT_ALT_RENDERER;
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484 currentConfig.EmuOpt |= EOPT_16BPP;
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486 currentConfig.EmuOpt &= ~EOPT_16BPP;
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488 PicoOpt |= POPT_ALT_RENDERER;
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496 if (PicoOpt & POPT_ALT_RENDERER) {
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497 plat_status_msg(" 8bit fast renderer");
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498 } else if (currentConfig.EmuOpt & EOPT_16BPP) {
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499 plat_status_msg("16bit accurate renderer");
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501 plat_status_msg(" 8bit accurate renderer");
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506 static void RunEventsPico(unsigned int events)
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508 int ret, px, py, lim_x;
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509 static int pdown_frames = 0;
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512 ret = gp2x_touchpad_read(&px, &py);
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517 if (pdown_frames++ > 5)
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518 PicoPad[0] |= 0x20;
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522 if (!(Pico.video.reg[12]&1)) {
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524 if (pico_pen_x < 0) pico_pen_x = 0;
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525 if (pico_pen_x > 248) pico_pen_x = 248;
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527 if (pico_pen_y > 224) pico_pen_y = 224;
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533 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
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538 void plat_update_volume(int has_changed, int is_up)
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540 static int prev_frame = 0, wait_frames = 0;
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541 int vol = currentConfig.volume;
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542 int need_low_volume = 0;
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545 soc = soc_detect();
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546 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)
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547 need_low_volume = 1;
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551 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
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555 if (vol < 99) vol++;
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557 if (vol > 0) vol--;
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560 sndout_oss_setvol(vol, vol);
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561 currentConfig.volume = vol;
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563 plat_status_msg("VOL: %02i", vol);
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564 prev_frame = Pico.m.frame_count;
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567 if (need_low_volume)
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570 /* set the right mixer func */
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572 PsndMix_32_to_16l = mix_32_to_16l_stereo;
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574 mix_32_to_16l_level = 5 - vol;
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575 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
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580 static void updateSound(int len)
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582 if (PicoOpt&8) len<<=1;
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584 /* avoid writing audio when lagging behind to prevent audio lag */
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585 if (PicoSkipFrame != 2)
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586 sndout_oss_write(PsndOut, len<<1);
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589 void pemu_sound_start(void)
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591 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
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592 int target_fps = Pico.m.pal ? 50 : 60;
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596 // prepare sound stuff
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597 if (currentConfig.EmuOpt & 4)
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599 int snd_excess_add;
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600 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||
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601 ((PicoOpt&0x200) && crashed_940)) {
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602 PsndRerate(Pico.m.frame_count ? 1 : 0);
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604 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
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605 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
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606 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
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607 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);
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608 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
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609 PicoWriteSound = updateSound;
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610 plat_update_volume(0, 0);
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611 memset(sndBuffer, 0, sizeof(sndBuffer));
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612 PsndOut = sndBuffer;
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613 PsndRate_old = PsndRate;
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614 PicoOpt_old = PicoOpt;
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615 pal_old = Pico.m.pal;
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619 void pemu_sound_stop(void)
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623 void pemu_sound_wait(void)
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625 // don't need to do anything, writes will block by themselves
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629 static void SkipFrame(int do_audio)
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631 PicoSkipFrame=do_audio ? 1 : 2;
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637 void pemu_forced_frame(int opts)
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639 int po_old = PicoOpt;
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640 int eo_old = currentConfig.EmuOpt;
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642 PicoOpt &= ~POPT_ALT_RENDERER;
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643 PicoOpt |= opts|POPT_ACC_SPRITES;
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644 currentConfig.EmuOpt |= EOPT_16BPP;
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646 PicoDrawSetColorFormat(1);
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647 PicoScanBegin = EmuScanBegin16;
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648 PicoScanEnd = NULL;
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649 Pico.m.dirtyPal = 1;
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650 PicoFrameDrawOnly();
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653 currentConfig.EmuOpt = eo_old;
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656 void plat_debug_cat(char *str)
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660 static void simpleWait(int thissec, int lim_time)
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662 struct timeval tval;
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664 spend_cycles(1024);
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665 gettimeofday(&tval, 0);
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666 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
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668 while (tval.tv_usec < lim_time)
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670 spend_cycles(1024);
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671 gettimeofday(&tval, 0);
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672 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
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678 static void tga_dump(void)
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680 #define BYTE unsigned char
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681 #define WORD unsigned short
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684 BYTE IDLength; /* 00h Size of Image ID field */
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685 BYTE ColorMapType; /* 01h Color map type */
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686 BYTE ImageType; /* 02h Image type code */
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687 WORD CMapStart; /* 03h Color map origin */
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688 WORD CMapLength; /* 05h Color map length */
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689 BYTE CMapDepth; /* 07h Depth of color map entries */
\r
690 WORD XOffset; /* 08h X origin of image */
\r
691 WORD YOffset; /* 0Ah Y origin of image */
\r
692 WORD Width; /* 0Ch Width of image */
\r
693 WORD Height; /* 0Eh Height of image */
\r
694 BYTE PixelDepth; /* 10h Image pixel size */
\r
695 BYTE ImageDescriptor; /* 11h Image descriptor byte */
\r
696 } __attribute__((packed)) TGAHEAD;
\r
697 static unsigned short oldscr[320*240];
\r
698 FILE *f; char name[128]; int i;
\r
700 memset(&TGAHEAD, 0, sizeof(TGAHEAD));
\r
701 TGAHEAD.ImageType = 2;
\r
702 TGAHEAD.Width = 320;
\r
703 TGAHEAD.Height = 240;
\r
704 TGAHEAD.PixelDepth = 16;
\r
705 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
\r
707 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
\r
709 for (i = 0; i < 320*240; i++)
\r
710 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;
\r
713 for (i = 0; i < 320*240; i++)
\r
714 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);
\r
715 sprintf(name, "%05i.tga", Pico.m.frame_count);
\r
716 f = fopen(name, "wb");
\r
717 if (!f) { printf("!f\n"); exit(1); }
\r
718 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
\r
719 fwrite(oldscr, 1, 320*240*2, f);
\r
726 void pemu_loop(void)
\r
728 static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;
\r
729 static int gp2x_old_gamma = 100;
\r
730 char fpsbuff[24]; // fps count c string
\r
731 struct timeval tval; // timing
\r
732 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync
\r
733 int frames_done, frames_shown, thissec; // actual frames
\r
734 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;
\r
737 printf("entered emu_Loop()\n");
\r
739 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {
\r
740 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)
\r
743 unset_ram_timings();
\r
746 if (gp2x_old_clock < 0)
\r
747 gp2x_old_clock = default_cpu_clock;
\r
748 if (gp2x_old_clock != currentConfig.CPUclock) {
\r
749 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
\r
750 gp2x_set_cpuclk(currentConfig.CPUclock);
\r
751 gp2x_old_clock = currentConfig.CPUclock;
\r
755 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {
\r
756 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
\r
757 gp2x_old_gamma = currentConfig.gamma;
\r
758 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
\r
761 if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_PSYNC) || Pico.m.pal != pal_old) {
\r
762 if (currentConfig.EmuOpt & EOPT_PSYNC)
\r
763 set_lcd_custom_rate(Pico.m.pal);
\r
765 unset_lcd_custom_rate();
\r
768 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)
\r
769 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);
\r
771 EmuOpt_old = currentConfig.EmuOpt;
\r
772 pal_old = Pico.m.pal;
\r
775 // make sure we are in correct mode
\r
778 Pico.m.dirtyPal = 1;
\r
779 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
\r
781 // pal/ntsc might have changed, reset related stuff
\r
782 target_fps = Pico.m.pal ? 50 : 60;
\r
783 target_frametime = 1000000/target_fps;
\r
786 pemu_sound_start();
\r
788 // prepare CD buffer
\r
789 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();
\r
791 // calc vsync offset to sync timing code with vsync
\r
792 if (currentConfig.EmuOpt & EOPT_PSYNC) {
\r
793 gettimeofday(&tval, 0);
\r
794 gp2x_video_wait_vsync();
\r
795 gettimeofday(&tval, 0);
\r
796 vsync_offset = tval.tv_usec;
\r
797 while (vsync_offset >= target_frametime)
\r
798 vsync_offset -= target_frametime;
\r
799 if (!vsync_offset) vsync_offset++;
\r
800 printf("vsync_offset: %i\n", vsync_offset);
\r
804 frames_done = frames_shown = thissec =
\r
805 pframes_done = pframes_shown = pthissec = 0;
\r
808 while (engineState == PGS_Running)
\r
812 gettimeofday(&tval, 0);
\r
813 if (reset_timing) {
\r
815 pthissec = tval.tv_sec;
\r
816 pframes_shown = pframes_done = tval.tv_usec/target_frametime;
\r
819 // show notice message?
\r
820 if (noticeMsgTime.tv_sec)
\r
822 static int noticeMsgSum;
\r
823 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec
\r
824 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;
\r
828 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
\r
829 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
\r
830 notice = noticeMsg;
\r
834 // check for mode changes
\r
835 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
\r
836 if (modes != oldmodes)
\r
839 osd_fps_x = OSD_FPS_X;
\r
840 if (!(modes & 4) && (PicoOpt & POPT_DIS_32C_BORDER)) {
\r
842 osd_fps_x = OSD_FPS_X - 64;
\r
844 /* want vertical scaling and game is not in 240 line mode */
\r
845 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(modes&8))
\r
846 gp2x_video_RGB_setscaling(8, scalex, 224);
\r
847 else gp2x_video_RGB_setscaling(0, scalex, 240);
\r
853 if (thissec != tval.tv_sec)
\r
856 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
\r
857 if (++bench == 10) {
\r
859 bench_fps_s = bench_fps;
\r
860 bf[bfp++ & 3] = bench_fps;
\r
863 bench_fps += frames_shown;
\r
864 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
\r
866 if (currentConfig.EmuOpt & 2) {
\r
867 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
\r
868 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
\r
871 frames_shown = frames_done = 0;
\r
872 thissec = tval.tv_sec;
\r
875 sprintf(fpsbuff, "%i", Pico.m.frame_count);
\r
878 if (pthissec != tval.tv_sec)
\r
880 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
\r
881 pframes_done = pframes_shown = 0;
\r
883 // it is quite common for this implementation to leave 1 fame unfinished
\r
884 // when second changes, but we don't want buffer to starve.
\r
885 if (PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {
\r
886 emu_update_input();
\r
887 SkipFrame(1); pframes_done++;
\r
890 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;
\r
891 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;
\r
892 if (pframes_shown > pframes_done) pframes_shown = pframes_done;
\r
894 pthissec = tval.tv_sec;
\r
897 lim_time = (pframes_done+1) * target_frametime + vsync_offset;
\r
898 if (currentConfig.Frameskip >= 0) // frameskip enabled
\r
900 for(i = 0; i < currentConfig.Frameskip; i++) {
\r
901 emu_update_input();
\r
902 SkipFrame(1); pframes_done++; frames_done++;
\r
903 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
\r
904 gettimeofday(&tval, 0);
\r
905 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
906 if (tval.tv_usec < lim_time) { // we are too fast
\r
907 simpleWait(pthissec, lim_time);
\r
910 lim_time += target_frametime;
\r
913 else if (tval.tv_usec > lim_time) // auto frameskip
\r
915 // no time left for this frame - skip
\r
916 if (tval.tv_usec - lim_time >= 300000) {
\r
917 /* something caused a slowdown for us (disk access? cache flush?)
\r
918 * try to recover by resetting timing... */
\r
922 emu_update_input();
\r
923 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;
\r
927 emu_update_input();
\r
931 gettimeofday(&tval, 0);
\r
932 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
\r
934 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection
\r
936 else if (PsndOut != NULL || currentConfig.Frameskip < 0)
\r
938 // sleep or vsync if we are still too fast
\r
939 // usleep sleeps for ~20ms minimum, so it is not a solution here
\r
940 if (!reset_timing && tval.tv_usec < lim_time)
\r
943 if (vsync_offset) {
\r
944 if (lim_time - tval.tv_usec > target_frametime/2)
\r
945 simpleWait(pthissec, lim_time - target_frametime/4);
\r
946 gp2x_video_wait_vsync();
\r
948 simpleWait(pthissec, lim_time);
\r
953 blit(fpsbuff, notice);
\r
955 pframes_done++; pframes_shown++;
\r
956 frames_done++; frames_shown++;
\r
959 emu_set_fastforward(0);
\r
961 if (PicoAHW & PAHW_MCD)
\r
962 PicoCDBufferFree();
\r
965 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
\r
966 plat_status_msg_busy_first("Writing SRAM/BRAM...");
\r
967 emu_save_load_game(0, 1);
\r
971 // do menu background to be sure it's right
\r
972 pemu_forced_frame(POPT_EN_SOFTSCALE);
\r
975 const char *plat_get_credits(void)
\r
977 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"
\r
979 "fDave: Cyclone 68000 core,\n"
\r
980 " base code of PicoDrive\n"
\r
981 "Reesy & FluBBa: DrZ80 core\n"
\r
982 "MAME devs: YM2612 and SN76496 cores\n"
\r
983 "rlyeh and others: minimal SDK\n"
\r
984 "Squidge: mmuhack\n"
\r
985 "Dzz: ARM940 sample\n"
\r
986 "GnoStiC / Puck2099: USB joy code\n"
\r
987 "craigix: GP2X hardware\n"
\r
988 "ketchupgun: skin design\n"
\r
990 "special thanks (for docs, ideas):\n"
\r
991 " Charles MacDonald, Haze,\n"
\r
992 " Stephane Dallongeville,\n"
\r
993 " Lordus, Exophase, Rokas,\n"
\r
994 " Nemesis, Tasco Deluxe";
\r