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;
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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 if (!(Pico.video.reg[1]&8)) num += 8;
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224 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;
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229 static int EmuScanBegin8(unsigned int num)
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231 if (!(Pico.video.reg[1]&8)) num += 8;
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232 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;
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237 /* rot thing for Wiz */
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238 static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];
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240 static int EmuScanBegin16_rot(unsigned int num)
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242 DrawLineDest = rot_buff + (num & 3) * 320 * 2;
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246 static int EmuScanEnd16_rot(unsigned int num)
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248 if ((num & 3) != 3)
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250 if (!(Pico.video.reg[1] & 8))
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252 rotated_blit16(g_screen_ptr, rot_buff, num + 1,
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253 !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));
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257 static int EmuScanBegin8_rot(unsigned int num)
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259 DrawLineDest = rot_buff + (num & 3) * 320;
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263 static int EmuScanEnd8_rot(unsigned int num)
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265 if ((num & 3) != 3)
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267 if (!(Pico.video.reg[1] & 8))
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269 rotated_blit8(g_screen_ptr, rot_buff, num + 1,
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270 !(Pico.video.reg[12] & 1));
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274 int localPal[0x100];
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275 static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border) = NULL;
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277 void pemu_update_display(const char *fps, const char *notice)
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279 int emu_opt = currentConfig.EmuOpt;
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281 if (PicoOpt & POPT_ALT_RENDERER)
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283 // 8bit fast renderer
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284 if (Pico.m.dirtyPal) {
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285 Pico.m.dirtyPal = 0;
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286 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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287 // feed new palette to our device
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288 gp2x_video_setpalette(localPal, 0x40);
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291 if (PicoRead16Hook == PicoSVPRead16)
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292 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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294 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,
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295 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));
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297 else if (!(emu_opt & EOPT_16BPP))
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299 // 8bit accurate renderer
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300 if (Pico.m.dirtyPal)
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303 Pico.m.dirtyPal = 0;
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304 if (Pico.video.reg[0xC]&8) // shadow/hilight mode
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306 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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307 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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308 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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309 memcpy32(localPal+0xc0, localPal+0x40, 0x40);
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312 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
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313 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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314 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
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315 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
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318 vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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319 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess
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321 if (pallen > 0xc0) {
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322 localPal[0xc0] = 0x0000c000;
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323 localPal[0xd0] = 0x00c00000;
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324 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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325 localPal[0xf0] = 0x00ffffff;
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327 gp2x_video_setpalette(localPal, pallen);
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331 if (notice || (emu_opt & 2)) {
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333 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))
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336 osd_text(4, h, notice);
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338 osd_text(osd_fps_x, h, fps);
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340 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
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342 if (PicoAHW & PAHW_PICO)
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350 unsigned int plat_get_ticks_ms(void)
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352 return gp2x_get_ticks_ms();
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355 unsigned int plat_get_ticks_us(void)
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357 return gp2x_get_ticks_us();
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361 void plat_wait_till_us(unsigned int us_to)
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365 spend_cycles(1024);
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366 now = plat_get_ticks_us();
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368 while ((signed int)(us_to - now) > 512)
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370 spend_cycles(1024);
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371 now = plat_get_ticks_us();
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375 void plat_video_wait_vsync(void)
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377 gp2x_video_wait_vsync();
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380 void plat_status_msg_clear(void)
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382 int is_8bit = (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP);
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383 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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387 for (i = 0; i < 4; i++) {
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388 p = (int *)gp2x_screens[i] + (240-8) / 4;
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389 for (u = 320; u > 0; u--, p += 240/4)
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390 p[0] = p[1] = 0xe0e0e0e0;
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393 for (i = 0; i < 4; i++) {
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394 p = (int *)gp2x_screens[i] + (240-8)*2 / 4;
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395 for (u = 320; u > 0; u--, p += 240*2/4)
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396 p[0] = p[1] = p[2] = p[3] = 0;
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403 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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405 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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408 void plat_status_msg_busy_next(const char *msg)
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410 plat_status_msg_clear();
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411 pemu_update_display("", msg);
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412 emu_status_msg("");
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414 /* assumption: msg_busy_next gets called only when
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415 * something slow is about to happen */
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419 void plat_status_msg_busy_first(const char *msg)
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421 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);
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422 plat_status_msg_busy_next(msg);
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425 static void vidResetMode(void)
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427 PicoScanEnd = NULL;
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429 if (PicoOpt & POPT_ALT_RENDERER) {
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430 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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431 gp2x_video_changemode(-8);
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432 vidcpyM2 = vidcpy_m2_rot;
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433 osd_text = osd_text8_rot;
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435 gp2x_video_changemode(8);
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436 vidcpyM2 = vidcpy_m2;
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437 osd_text = osd_text8;
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440 else if (currentConfig.EmuOpt & EOPT_16BPP) {
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441 PicoDrawSetColorFormat(1);
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442 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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443 gp2x_video_changemode(-16);
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444 PicoScanBegin = EmuScanBegin16_rot;
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445 PicoScanEnd = EmuScanEnd16_rot;
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446 osd_text = osd_text16_rot;
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448 gp2x_video_changemode(16);
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449 PicoScanBegin = EmuScanBegin16;
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450 osd_text = osd_text16;
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454 PicoDrawSetColorFormat(2);
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455 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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456 gp2x_video_changemode(-8);
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457 PicoScanBegin = EmuScanBegin8_rot;
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458 PicoScanEnd = EmuScanEnd8_rot;
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459 osd_text = osd_text8_rot;
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461 gp2x_video_changemode(8);
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462 PicoScanBegin = EmuScanBegin8;
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463 osd_text = osd_text8;
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467 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {
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468 // setup pal for 8-bit modes
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469 localPal[0xc0] = 0x0000c000; // MCD LEDs
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470 localPal[0xd0] = 0x00c00000;
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471 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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472 localPal[0xf0] = 0x00ffffff;
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473 gp2x_video_setpalette(localPal, 0x100);
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474 gp2x_memset_all_buffers(0, 0xe0, 320*240);
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477 Pico.m.dirtyPal = 1;
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480 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))
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481 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
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482 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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485 void plat_video_toggle_renderer(int is_next, int is_menu)
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487 /* alt, 16bpp, 8bpp */
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488 if (PicoOpt & POPT_ALT_RENDERER) {
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489 PicoOpt &= ~POPT_ALT_RENDERER;
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491 currentConfig.EmuOpt |= EOPT_16BPP;
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492 } else if (!(currentConfig.EmuOpt & EOPT_16BPP)) {
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494 PicoOpt |= POPT_ALT_RENDERER;
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496 currentConfig.EmuOpt |= EOPT_16BPP;
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498 currentConfig.EmuOpt &= ~EOPT_16BPP;
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500 PicoOpt |= POPT_ALT_RENDERER;
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508 if (PicoOpt & POPT_ALT_RENDERER) {
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509 emu_status_msg(" 8bit fast renderer");
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510 } else if (currentConfig.EmuOpt & EOPT_16BPP) {
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511 emu_status_msg("16bit accurate renderer");
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513 emu_status_msg(" 8bit accurate renderer");
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518 static void RunEventsPico(unsigned int events)
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520 int ret, px, py, lim_x;
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521 static int pdown_frames = 0;
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524 ret = gp2x_touchpad_read(&px, &py);
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529 if (pdown_frames++ > 5)
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530 PicoPad[0] |= 0x20;
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534 if (!(Pico.video.reg[12]&1)) {
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536 if (pico_pen_x < 0) pico_pen_x = 0;
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537 if (pico_pen_x > 248) pico_pen_x = 248;
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539 if (pico_pen_y > 224) pico_pen_y = 224;
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545 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
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550 void plat_update_volume(int has_changed, int is_up)
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552 static int prev_frame = 0, wait_frames = 0;
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553 int vol = currentConfig.volume;
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554 int need_low_volume = 0;
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557 soc = soc_detect();
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558 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)
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559 need_low_volume = 1;
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563 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
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567 if (vol < 99) vol++;
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569 if (vol > 0) vol--;
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572 sndout_oss_setvol(vol, vol);
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573 currentConfig.volume = vol;
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575 emu_status_msg("VOL: %02i", vol);
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576 prev_frame = Pico.m.frame_count;
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579 if (!need_low_volume)
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582 /* set the right mixer func */
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584 PsndMix_32_to_16l = mix_32_to_16l_stereo;
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586 mix_32_to_16l_level = 5 - vol;
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587 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
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591 static void updateSound(int len)
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594 if (PicoOpt & POPT_EN_STEREO)
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597 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))
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600 /* avoid writing audio when lagging behind to prevent audio lag */
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601 if (PicoSkipFrame != 2)
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602 sndout_oss_write(PsndOut, len);
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605 void pemu_sound_start(void)
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607 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
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611 // prepare sound stuff
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612 if (currentConfig.EmuOpt & EOPT_EN_SOUND)
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614 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;
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615 int target_fps = Pico.m.pal ? 50 : 60;
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616 int frame_samples, snd_excess_add;
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617 int snd_rate_oss = PsndRate;
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620 soc = soc_detect();
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621 if (soc == SOCID_POLLUX) {
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622 /* POLLUX pain: DPLL1 / mclk_div / bitclk_div / 4 */
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623 switch (PsndRate) {
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624 case 44100: PsndRate = 44171; break; // 44170.673077
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625 case 22050: PsndRate = 22086; break; // 22085.336538
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626 case 11025: PsndRate = 11043; break; // 11042.668269
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631 #define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)
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632 if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||
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633 ((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {
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634 PsndRerate(Pico.m.frame_count ? 1 : 0);
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637 memset(sndBuffer, 0, sizeof(sndBuffer));
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638 PsndOut = sndBuffer;
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639 PicoWriteSound = updateSound;
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640 PsndRate_old = PsndRate;
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641 PicoOpt_old = PicoOpt;
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642 pal_old = Pico.m.pal;
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643 plat_update_volume(0, 0);
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645 frame_samples = PsndLen;
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646 snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;
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647 if (snd_excess_add != 0)
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649 if (soc == SOCID_POLLUX)
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650 frame_samples *= 2; /* force larger buffer */
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652 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
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653 PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);
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654 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
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655 sndout_oss_start(snd_rate_oss, frame_samples, is_stereo);
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657 /* Wiz's sound hardware needs more prebuffer */
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658 if (soc == SOCID_POLLUX)
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659 updateSound(frame_samples);
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663 void pemu_sound_stop(void)
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665 /* get back from Wiz pain */
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666 switch (PsndRate) {
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667 case 44171: PsndRate = 44100; break;
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668 case 22086: PsndRate = 22050; break;
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669 case 11043: PsndRate = 11025; break;
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674 void pemu_sound_wait(void)
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676 // don't need to do anything, writes will block by themselves
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680 void pemu_forced_frame(int opts)
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682 int po_old = PicoOpt;
\r
683 int eo_old = currentConfig.EmuOpt;
\r
685 PicoOpt &= ~POPT_ALT_RENDERER;
\r
686 PicoOpt |= opts|POPT_ACC_SPRITES;
\r
687 currentConfig.EmuOpt |= EOPT_16BPP;
\r
689 PicoDrawSetColorFormat(1);
\r
690 PicoScanBegin = EmuScanBegin16;
\r
691 PicoScanEnd = NULL;
\r
692 Pico.m.dirtyPal = 1;
\r
693 PicoFrameDrawOnly();
\r
696 currentConfig.EmuOpt = eo_old;
\r
699 void plat_debug_cat(char *str)
\r
703 void pemu_video_mode_change(int is_32col, int is_240_lines)
\r
706 osd_fps_x = OSD_FPS_X;
\r
707 if (is_32col && (PicoOpt & POPT_DIS_32C_BORDER)) {
\r
709 osd_fps_x = OSD_FPS_X - 64;
\r
711 /* want vertical scaling and game is not in 240 line mode */
\r
712 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !is_240_lines)
\r
713 gp2x_video_RGB_setscaling(8, scalex, 224);
\r
715 gp2x_video_RGB_setscaling(0, scalex, 240);
\r
717 // clear whole screen in all buffers
\r
718 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))
\r
719 gp2x_memset_all_buffers(0, 0xe0, 320*240);
\r
721 gp2x_memset_all_buffers(0, 0, 320*240*2);
\r
725 static void tga_dump(void)
\r
727 #define BYTE unsigned char
\r
728 #define WORD unsigned short
\r
731 BYTE IDLength; /* 00h Size of Image ID field */
\r
732 BYTE ColorMapType; /* 01h Color map type */
\r
733 BYTE ImageType; /* 02h Image type code */
\r
734 WORD CMapStart; /* 03h Color map origin */
\r
735 WORD CMapLength; /* 05h Color map length */
\r
736 BYTE CMapDepth; /* 07h Depth of color map entries */
\r
737 WORD XOffset; /* 08h X origin of image */
\r
738 WORD YOffset; /* 0Ah Y origin of image */
\r
739 WORD Width; /* 0Ch Width of image */
\r
740 WORD Height; /* 0Eh Height of image */
\r
741 BYTE PixelDepth; /* 10h Image pixel size */
\r
742 BYTE ImageDescriptor; /* 11h Image descriptor byte */
\r
743 } __attribute__((packed)) TGAHEAD;
\r
744 static unsigned short oldscr[320*240];
\r
745 FILE *f; char name[128]; int i;
\r
747 memset(&TGAHEAD, 0, sizeof(TGAHEAD));
\r
748 TGAHEAD.ImageType = 2;
\r
749 TGAHEAD.Width = 320;
\r
750 TGAHEAD.Height = 240;
\r
751 TGAHEAD.PixelDepth = 16;
\r
752 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
\r
754 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
\r
756 for (i = 0; i < 320*240; i++)
\r
757 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;
\r
760 for (i = 0; i < 320*240; i++)
\r
761 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);
\r
762 sprintf(name, "%05i.tga", Pico.m.frame_count);
\r
763 f = fopen(name, "wb");
\r
764 if (!f) { printf("!f\n"); exit(1); }
\r
765 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
\r
766 fwrite(oldscr, 1, 320*240*2, f);
\r
772 void pemu_loop_prep(void)
\r
774 static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;
\r
775 static int gp2x_old_gamma = 100;
\r
778 soc = soc_detect();
\r
780 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {
\r
781 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)
\r
784 unset_ram_timings();
\r
787 if (gp2x_old_clock < 0)
\r
788 gp2x_old_clock = default_cpu_clock;
\r
789 if (gp2x_old_clock != currentConfig.CPUclock) {
\r
790 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
\r
791 gp2x_set_cpuclk(currentConfig.CPUclock);
\r
792 gp2x_old_clock = currentConfig.CPUclock;
\r
796 if (gp2x_old_gamma != currentConfig.gamma || ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_A_SN_GAMMA)) {
\r
797 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt & EOPT_A_SN_GAMMA));
\r
798 gp2x_old_gamma = currentConfig.gamma;
\r
799 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
\r
802 if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_VSYNC) || Pico.m.pal != pal_old) {
\r
803 if ((currentConfig.EmuOpt & EOPT_VSYNC) || soc == SOCID_POLLUX)
\r
804 set_lcd_custom_rate(Pico.m.pal);
\r
805 else if (EmuOpt_old & EOPT_VSYNC)
\r
806 unset_lcd_custom_rate();
\r
809 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)
\r
810 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);
\r
812 EmuOpt_old = currentConfig.EmuOpt;
\r
813 pal_old = Pico.m.pal;
\r
815 // make sure we are in correct mode
\r
819 pemu_sound_start();
\r
822 void pemu_loop_end(void)
\r
824 int po_old = PicoOpt;
\r
825 int eo_old = currentConfig.EmuOpt;
\r
829 /* do one more frame for menu bg */
\r
830 PicoOpt &= ~POPT_ALT_RENDERER;
\r
831 PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;
\r
832 currentConfig.EmuOpt |= EOPT_16BPP;
\r
834 PicoScanBegin = EmuScanBegin16;
\r
835 PicoScanEnd = NULL;
\r
836 PicoDrawSetColorFormat(1);
\r
837 Pico.m.dirtyPal = 1;
\r
841 currentConfig.EmuOpt = eo_old;
\r
844 const char *plat_get_credits(void)
\r
846 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"
\r
848 "fDave: Cyclone 68000 core,\n"
\r
849 " base code of PicoDrive\n"
\r
850 "Reesy & FluBBa: DrZ80 core\n"
\r
851 "MAME devs: YM2612 and SN76496 cores\n"
\r
852 "rlyeh and others: minimal SDK\n"
\r
853 "Squidge: mmuhack\n"
\r
854 "Dzz: ARM940 sample\n"
\r
855 "GnoStiC / Puck2099: USB joy code\n"
\r
856 "craigix: GP2X hardware\n"
\r
857 "ketchupgun: skin design\n"
\r
859 "special thanks (for docs, ideas):\n"
\r
860 " Charles MacDonald, Haze,\n"
\r
861 " Stephane Dallongeville,\n"
\r
862 " Lordus, Exophase, Rokas,\n"
\r
863 " Nemesis, Tasco Deluxe";
\r