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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9 #include "plat_gp2x.h"
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11 #include "../common/plat.h"
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12 #include "../common/menu.h"
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13 #include "../common/arm_utils.h"
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14 #include "../common/fonts.h"
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15 #include "../common/emu.h"
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16 #include "../common/config.h"
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17 #include "../linux/sndout_oss.h"
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18 #include "version.h"
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20 #include <pico/pico_int.h>
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21 #include <pico/patch.h>
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22 #include <pico/sound/mix.h>
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23 #include <zlib/zlib.h>
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28 #define OSD_FPS_X 220
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30 #define OSD_FPS_X 260
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34 extern int crashed_940;
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36 static short __attribute__((aligned(4))) sndBuffer[2*(44100+100)/50];
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37 static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];
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38 unsigned char *PicoDraw2FB = PicoDraw2FB_;
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39 static int osd_fps_x, osd_y;
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41 extern void *gp2x_screens[4];
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43 int plat_get_root_dir(char *dst, int len)
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45 extern char **g_argv;
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48 strncpy(dst, g_argv[0], len);
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49 len -= 32; // reserve
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50 if (len < 0) len = 0;
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52 for (j = strlen(dst); j > 0; j--)
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53 if (dst[j] == '/') { dst[j+1] = 0; break; }
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59 static void scaling_update(void)
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61 PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);
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62 switch (currentConfig.scaling) {
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64 case EOPT_SCALE_HW_H:
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65 case EOPT_SCALE_HW_HV:
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66 PicoOpt |= POPT_DIS_32C_BORDER;
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68 case EOPT_SCALE_SW_H:
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69 PicoOpt |= POPT_EN_SOFTSCALE;
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75 void pemu_prep_defconfig(void)
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79 memset(&defaultConfig, 0, sizeof(defaultConfig));
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80 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_CONFIRM_SAVE|EOPT_EN_CD_LEDS;
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81 defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;
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82 defaultConfig.s_PsndRate = 44100;
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83 defaultConfig.s_PicoRegion = 0; // auto
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84 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
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85 defaultConfig.s_PicoCDBuffers = 0;
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86 defaultConfig.Frameskip = -1; // auto
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87 defaultConfig.CPUclock = default_cpu_clock;
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88 defaultConfig.volume = 50;
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89 defaultConfig.gamma = 100;
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90 defaultConfig.scaling = 0;
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91 defaultConfig.turbo_rate = 15;
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94 if (soc == SOCID_MMSP2)
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95 defaultConfig.s_PicoOpt |= POPT_EXT_FM;
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96 else if (soc == SOCID_POLLUX)
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97 defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX|EOPT_SHOW_RTC;
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100 static void (*osd_text)(int x, int y, const char *text);
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102 static void osd_text8(int x, int y, const char *text)
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104 int len = strlen(text)*8;
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105 int *p, i, h, offs;
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107 len = (len+3) >> 2;
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108 for (h = 0; h < 8; h++) {
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109 offs = (x + g_screen_width * (y+h)) & ~3;
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110 p = (int *) ((char *)g_screen_ptr + offs);
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111 for (i = len; i; i--, p++)
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114 emu_text_out8(x, y, text);
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117 static void osd_text16(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+1) >> 1;
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123 for (h = 0; h < 8; h++) {
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124 offs = (x + g_screen_width * (y+h)) & ~1;
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125 p = (int *) ((short *)g_screen_ptr + offs);
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126 for (i = len; i; i--, p++)
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127 *p = (*p >> 2) & 0x39e7;
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129 emu_text_out16(x, y, text);
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132 static void osd_text8_rot(int x, int y, const char *text)
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134 int len = strlen(text) * 8;
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135 char *p = (char *)g_screen_ptr + 240*(320-x) + y;
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138 memset(p, 0xe0, 8);
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142 emu_text_out8_rot(x, y, text);
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145 static void osd_text16_rot(int x, int y, const char *text)
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147 int len = strlen(text) * 8;
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148 short *p = (short *)g_screen_ptr + 240*(320-x) + y;
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155 emu_text_out16_rot(x, y, text);
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158 static void draw_cd_leds(void)
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160 int led_reg, pitch, scr_offs, led_offs;
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161 led_reg = Pico_mcd->s68k_regs[0];
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163 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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165 led_offs = -pitch * 6;
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166 scr_offs = pitch * (320 - 4);
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170 scr_offs = pitch * 2 + 4;
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173 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {
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174 #define p(x) px[(x) >> 2]
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176 unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);
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177 unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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178 unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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179 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
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180 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
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183 #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]
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185 unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);
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186 unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;
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187 unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;
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188 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
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189 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
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194 static void draw_pico_ptr(void)
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196 unsigned short *p = (unsigned short *)g_screen_ptr;
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197 int x, y, pitch = 320;
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199 // only if pen enabled and for 16bit modes
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200 if (pico_inp_mode == 0 || (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))
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203 x = pico_pen_x + PICO_PEN_ADJUST_X;
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204 y = pico_pen_y + PICO_PEN_ADJUST_Y;
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205 if (!(Pico.video.reg[12]&1) && !(PicoOpt & POPT_DIS_32C_BORDER))
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208 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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210 p += (319 - x) * pitch + y;
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212 p += x + y * pitch;
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215 p[pitch-1] ^= 0xffff;
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216 p[pitch] ^= 0xffff;
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217 p[pitch+1] ^= 0xffff;
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218 p[pitch*2] ^= 0xffff;
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221 static int EmuScanBegin16(unsigned int num)
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223 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;
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228 static int EmuScanBegin8(unsigned int num)
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230 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;
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235 /* rot thing for Wiz */
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236 static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];
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238 static int EmuScanBegin16_rot(unsigned int num)
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240 DrawLineDest = rot_buff + (num & 3) * 320 * 2;
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244 static int EmuScanEnd16_rot(unsigned int num)
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246 if ((num & 3) != 3)
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248 rotated_blit16(g_screen_ptr, rot_buff, num + 1,
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249 !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));
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253 static int EmuScanBegin8_rot(unsigned int num)
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255 DrawLineDest = rot_buff + (num & 3) * 320;
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259 static int EmuScanEnd8_rot(unsigned int num)
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261 if ((num & 3) != 3)
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263 rotated_blit8(g_screen_ptr, rot_buff, num + 1,
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264 !(Pico.video.reg[12] & 1));
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268 static int localPal[0x100];
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269 static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border);
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270 static int (*make_local_pal)(int fast_mode);
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272 static int make_local_pal_md(int fast_mode)
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276 bgr444_to_rgb32(localPal, Pico.cram);
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280 if (Pico.video.reg[0xC] & 8) { // shadow/hilight mode
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281 bgr444_to_rgb32_sh(localPal, Pico.cram);
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282 localPal[0xc0] = 0x0000c000;
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283 localPal[0xd0] = 0x00c00000;
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284 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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285 localPal[0xf0] = 0x00ffffff;
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288 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
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289 bgr444_to_rgb32(localPal+0x40, HighPal);
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290 bgr444_to_rgb32(localPal+0x80, HighPal+0x40);
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293 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess
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298 static int make_local_pal_sms(int fast_mode)
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300 unsigned short *spal = Pico.cram;
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301 unsigned int *dpal = (void *)localPal;
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304 for (i = 0x40; i > 0; i--) {
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306 t = ((t & 0x0003) << 22) | ((t & 0x000c) << 12) | ((t & 0x0030) << 2);
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315 void pemu_update_display(const char *fps, const char *notice)
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317 int emu_opt = currentConfig.EmuOpt;
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320 if (PicoOpt & POPT_ALT_RENDERER)
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322 // 8bit fast renderer
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323 if (Pico.m.dirtyPal) {
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324 Pico.m.dirtyPal = 0;
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325 ret = make_local_pal(1);
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326 // feed new palette to our device
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327 gp2x_video_setpalette(localPal, ret);
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330 if (PicoAHW & PAHW_SVP)
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331 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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333 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,
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334 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));
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336 else if (!(emu_opt & EOPT_16BPP))
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338 // 8bit accurate renderer
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339 if (Pico.m.dirtyPal)
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341 Pico.m.dirtyPal = 0;
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342 ret = make_local_pal(0);
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343 gp2x_video_setpalette(localPal, ret);
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347 if (notice || (emu_opt & 2)) {
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349 osd_text(4, osd_y, notice);
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351 osd_text(osd_fps_x, osd_y, fps);
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353 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
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355 if (PicoAHW & PAHW_PICO)
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363 unsigned int plat_get_ticks_ms(void)
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365 return gp2x_get_ticks_ms();
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368 unsigned int plat_get_ticks_us(void)
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370 return gp2x_get_ticks_us();
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374 void plat_wait_till_us(unsigned int us_to)
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378 spend_cycles(1024);
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379 now = plat_get_ticks_us();
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381 while ((signed int)(us_to - now) > 512)
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383 spend_cycles(1024);
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384 now = plat_get_ticks_us();
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388 void plat_video_wait_vsync(void)
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390 gp2x_video_wait_vsync();
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393 void plat_status_msg_clear(void)
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395 int is_8bit = (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP);
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396 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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400 for (i = 0; i < 4; i++) {
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401 p = (int *)gp2x_screens[i] + (240-8) / 4;
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402 for (u = 320; u > 0; u--, p += 240/4)
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403 p[0] = p[1] = 0xe0e0e0e0;
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406 for (i = 0; i < 4; i++) {
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407 p = (int *)gp2x_screens[i] + (240-8)*2 / 4;
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408 for (u = 320; u > 0; u--, p += 240*2/4)
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409 p[0] = p[1] = p[2] = p[3] = 0;
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416 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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418 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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421 void plat_status_msg_busy_next(const char *msg)
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423 plat_status_msg_clear();
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424 pemu_update_display("", msg);
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425 emu_status_msg("");
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427 /* assumption: msg_busy_next gets called only when
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428 * something slow is about to happen */
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432 void plat_status_msg_busy_first(const char *msg)
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434 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);
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435 plat_status_msg_busy_next(msg);
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438 static void vidResetMode(void)
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440 PicoScanEnd = NULL;
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442 if (PicoOpt & POPT_ALT_RENDERER) {
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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 vidcpyM2 = vidcpy_m2_rot;
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446 osd_text = osd_text8_rot;
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448 gp2x_video_changemode(8);
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449 vidcpyM2 = vidcpy_m2;
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450 osd_text = osd_text8;
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453 else if (currentConfig.EmuOpt & EOPT_16BPP) {
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454 PicoDrawSetColorFormat(1);
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455 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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456 gp2x_video_changemode(-16);
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457 PicoScanBegin = EmuScanBegin16_rot;
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458 PicoScanEnd = EmuScanEnd16_rot;
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459 osd_text = osd_text16_rot;
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461 gp2x_video_changemode(16);
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462 PicoScanBegin = EmuScanBegin16;
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463 osd_text = osd_text16;
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467 PicoDrawSetColorFormat(2);
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468 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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469 gp2x_video_changemode(-8);
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470 PicoScanBegin = EmuScanBegin8_rot;
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471 PicoScanEnd = EmuScanEnd8_rot;
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472 osd_text = osd_text8_rot;
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474 gp2x_video_changemode(8);
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475 PicoScanBegin = EmuScanBegin8;
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476 osd_text = osd_text8;
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480 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {
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481 // setup pal for 8-bit modes
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482 localPal[0xc0] = 0x0000c000; // MCD LEDs
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483 localPal[0xd0] = 0x00c00000;
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484 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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485 localPal[0xf0] = 0x00ffffff;
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486 gp2x_video_setpalette(localPal, 0x100);
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487 gp2x_memset_all_buffers(0, 0xe0, 320*240);
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490 Pico.m.dirtyPal = 1;
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493 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))
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494 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
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495 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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497 // palette converters for 8bit modes
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498 make_local_pal = (PicoAHW & PAHW_SMS) ? make_local_pal_sms : make_local_pal_md;
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501 void plat_video_toggle_renderer(int is_next, int is_menu)
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503 /* alt, 16bpp, 8bpp */
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504 if (PicoOpt & POPT_ALT_RENDERER) {
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505 PicoOpt &= ~POPT_ALT_RENDERER;
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507 currentConfig.EmuOpt |= EOPT_16BPP;
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508 } else if (!(currentConfig.EmuOpt & EOPT_16BPP)) {
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510 PicoOpt |= POPT_ALT_RENDERER;
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512 currentConfig.EmuOpt |= EOPT_16BPP;
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514 currentConfig.EmuOpt &= ~EOPT_16BPP;
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516 PicoOpt |= POPT_ALT_RENDERER;
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523 rendstatus_old = -1;
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525 if (PicoOpt & POPT_ALT_RENDERER) {
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526 emu_status_msg(" 8bit fast renderer");
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527 } else if (currentConfig.EmuOpt & EOPT_16BPP) {
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528 emu_status_msg("16bit accurate renderer");
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530 emu_status_msg(" 8bit accurate renderer");
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535 static void RunEventsPico(unsigned int events)
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537 int ret, px, py, lim_x;
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538 static int pdown_frames = 0;
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541 ret = gp2x_touchpad_read(&px, &py);
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546 if (pdown_frames++ > 5)
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547 PicoPad[0] |= 0x20;
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551 if (!(Pico.video.reg[12]&1)) {
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553 if (pico_pen_x < 0) pico_pen_x = 0;
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554 if (pico_pen_x > 248) pico_pen_x = 248;
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556 if (pico_pen_y > 224) pico_pen_y = 224;
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562 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
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567 void plat_update_volume(int has_changed, int is_up)
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569 static int prev_frame = 0, wait_frames = 0;
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570 int vol = currentConfig.volume;
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571 int need_low_volume = 0;
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574 soc = soc_detect();
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575 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)
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576 need_low_volume = 1;
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580 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
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584 if (vol < 99) vol++;
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586 if (vol > 0) vol--;
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589 sndout_oss_setvol(vol, vol);
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590 currentConfig.volume = vol;
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592 emu_status_msg("VOL: %02i", vol);
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593 prev_frame = Pico.m.frame_count;
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596 if (!need_low_volume)
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599 /* set the right mixer func */
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601 PsndMix_32_to_16l = mix_32_to_16l_stereo;
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603 mix_32_to_16l_level = 5 - vol;
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604 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
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608 static void updateSound(int len)
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611 if (PicoOpt & POPT_EN_STEREO)
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614 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))
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617 /* avoid writing audio when lagging behind to prevent audio lag */
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618 if (PicoSkipFrame != 2)
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619 sndout_oss_write(PsndOut, len);
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622 void pemu_sound_start(void)
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624 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
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628 // prepare sound stuff
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629 if (currentConfig.EmuOpt & EOPT_EN_SOUND)
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631 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;
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632 int target_fps = Pico.m.pal ? 50 : 60;
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633 int frame_samples, snd_excess_add;
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634 int snd_rate_oss = PsndRate;
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637 soc = soc_detect();
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638 if (soc == SOCID_POLLUX) {
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639 /* POLLUX pain: DPLL1 / mclk_div / bitclk_div / 4 */
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640 switch (PsndRate) {
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641 case 44100: PsndRate = 44171; break; // 44170.673077
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642 case 22050: PsndRate = 22086; break; // 22085.336538
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643 case 11025: PsndRate = 11043; break; // 11042.668269
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648 #define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)
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649 if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||
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650 ((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {
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651 PsndRerate(Pico.m.frame_count ? 1 : 0);
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654 memset(sndBuffer, 0, sizeof(sndBuffer));
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655 PsndOut = sndBuffer;
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656 PicoWriteSound = updateSound;
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657 PsndRate_old = PsndRate;
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658 PicoOpt_old = PicoOpt;
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659 pal_old = Pico.m.pal;
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660 plat_update_volume(0, 0);
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662 frame_samples = PsndLen;
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663 snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;
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664 if (snd_excess_add != 0)
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666 if (soc == SOCID_POLLUX)
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667 frame_samples *= 2; /* force larger buffer */
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669 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
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670 PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);
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671 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
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672 sndout_oss_start(snd_rate_oss, frame_samples, is_stereo);
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674 /* Wiz's sound hardware needs more prebuffer */
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675 if (soc == SOCID_POLLUX)
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676 updateSound(frame_samples);
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680 void pemu_sound_stop(void)
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682 /* get back from Wiz pain */
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683 switch (PsndRate) {
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684 case 44171: PsndRate = 44100; break;
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685 case 22086: PsndRate = 22050; break;
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686 case 11043: PsndRate = 11025; break;
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691 void pemu_sound_wait(void)
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693 // don't need to do anything, writes will block by themselves
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697 void pemu_forced_frame(int opts)
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699 int po_old = PicoOpt;
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700 int eo_old = currentConfig.EmuOpt;
\r
702 PicoOpt &= ~POPT_ALT_RENDERER;
\r
703 PicoOpt |= opts|POPT_ACC_SPRITES;
\r
704 currentConfig.EmuOpt |= EOPT_16BPP;
\r
706 PicoDrawSetColorFormat(1);
\r
707 PicoScanBegin = EmuScanBegin16;
\r
708 PicoScanEnd = NULL;
\r
709 Pico.m.dirtyPal = 1;
\r
710 PicoFrameDrawOnly();
\r
713 currentConfig.EmuOpt = eo_old;
\r
716 void plat_debug_cat(char *str)
\r
720 void emu_video_mode_change(int start_line, int line_count, int is_32cols)
\r
723 osd_fps_x = OSD_FPS_X;
\r
725 if (is_32cols && (PicoOpt & POPT_DIS_32C_BORDER)) {
\r
727 osd_fps_x = OSD_FPS_X - 64;
\r
730 /* want vertical scaling and game is not in 240 line mode */
\r
731 if (currentConfig.scaling == EOPT_SCALE_HW_HV) {
\r
732 gp2x_video_RGB_setscaling(start_line, scalex, line_count);
\r
733 osd_y = start_line + line_count - 8;
\r
735 gp2x_video_RGB_setscaling(0, scalex, 240);
\r
737 // clear whole screen in all buffers
\r
738 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))
\r
739 gp2x_memset_all_buffers(0, 0xe0, 320*240);
\r
741 gp2x_memset_all_buffers(0, 0, 320*240*2);
\r
745 static void tga_dump(void)
\r
747 #define BYTE unsigned char
\r
748 #define WORD unsigned short
\r
751 BYTE IDLength; /* 00h Size of Image ID field */
\r
752 BYTE ColorMapType; /* 01h Color map type */
\r
753 BYTE ImageType; /* 02h Image type code */
\r
754 WORD CMapStart; /* 03h Color map origin */
\r
755 WORD CMapLength; /* 05h Color map length */
\r
756 BYTE CMapDepth; /* 07h Depth of color map entries */
\r
757 WORD XOffset; /* 08h X origin of image */
\r
758 WORD YOffset; /* 0Ah Y origin of image */
\r
759 WORD Width; /* 0Ch Width of image */
\r
760 WORD Height; /* 0Eh Height of image */
\r
761 BYTE PixelDepth; /* 10h Image pixel size */
\r
762 BYTE ImageDescriptor; /* 11h Image descriptor byte */
\r
763 } __attribute__((packed)) TGAHEAD;
\r
764 static unsigned short oldscr[320*240];
\r
765 FILE *f; char name[128]; int i;
\r
767 memset(&TGAHEAD, 0, sizeof(TGAHEAD));
\r
768 TGAHEAD.ImageType = 2;
\r
769 TGAHEAD.Width = 320;
\r
770 TGAHEAD.Height = 240;
\r
771 TGAHEAD.PixelDepth = 16;
\r
772 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
\r
774 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
\r
776 for (i = 0; i < 320*240; i++)
\r
777 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;
\r
780 for (i = 0; i < 320*240; i++)
\r
781 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);
\r
782 sprintf(name, "%05i.tga", Pico.m.frame_count);
\r
783 f = fopen(name, "wb");
\r
784 if (!f) { printf("!f\n"); exit(1); }
\r
785 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
\r
786 fwrite(oldscr, 1, 320*240*2, f);
\r
792 void pemu_loop_prep(void)
\r
794 static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;
\r
795 static int gp2x_old_gamma = 100;
\r
798 soc = soc_detect();
\r
800 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {
\r
801 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)
\r
804 unset_ram_timings();
\r
807 if (gp2x_old_clock < 0)
\r
808 gp2x_old_clock = default_cpu_clock;
\r
809 if (gp2x_old_clock != currentConfig.CPUclock) {
\r
810 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
\r
811 gp2x_set_cpuclk(currentConfig.CPUclock);
\r
812 gp2x_old_clock = currentConfig.CPUclock;
\r
816 if (gp2x_old_gamma != currentConfig.gamma || ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_A_SN_GAMMA)) {
\r
817 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt & EOPT_A_SN_GAMMA));
\r
818 gp2x_old_gamma = currentConfig.gamma;
\r
819 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
\r
822 if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_VSYNC) || Pico.m.pal != pal_old) {
\r
823 if ((currentConfig.EmuOpt & EOPT_VSYNC) || soc == SOCID_POLLUX)
\r
824 set_lcd_custom_rate(Pico.m.pal);
\r
825 else if (EmuOpt_old & EOPT_VSYNC)
\r
826 unset_lcd_custom_rate();
\r
829 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)
\r
830 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);
\r
832 EmuOpt_old = currentConfig.EmuOpt;
\r
833 pal_old = Pico.m.pal;
\r
835 // make sure we are in correct mode
\r
839 pemu_sound_start();
\r
842 void pemu_loop_end(void)
\r
844 int po_old = PicoOpt;
\r
845 int eo_old = currentConfig.EmuOpt;
\r
848 memset32(g_screen_ptr, 0, 320*240*2/4);
\r
850 /* do one more frame for menu bg */
\r
851 PicoOpt &= ~POPT_ALT_RENDERER;
\r
852 PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;
\r
853 currentConfig.EmuOpt |= EOPT_16BPP;
\r
855 PicoScanBegin = EmuScanBegin16;
\r
856 PicoScanEnd = NULL;
\r
857 PicoDrawSetColorFormat(1);
\r
858 Pico.m.dirtyPal = 1;
\r
862 currentConfig.EmuOpt = eo_old;
\r
865 const char *plat_get_credits(void)
\r
867 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"
\r
869 "fDave: Cyclone 68000 core,\n"
\r
870 " base code of PicoDrive\n"
\r
871 "Reesy & FluBBa: DrZ80 core\n"
\r
872 "MAME devs: YM2612 and SN76496 cores\n"
\r
873 "rlyeh and others: minimal SDK\n"
\r
874 "Squidge: mmuhack\n"
\r
875 "Dzz: ARM940 sample\n"
\r
876 "GnoStiC / Puck2099: USB joy code\n"
\r
877 "craigix: GP2X hardware\n"
\r
878 "ketchupgun: skin design\n"
\r
880 "special thanks (for docs, ideas):\n"
\r
881 " Charles MacDonald, Haze,\n"
\r
882 " Stephane Dallongeville,\n"
\r
883 " Lordus, Exophase, Rokas,\n"
\r
884 " Nemesis, Tasco Deluxe";
\r