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/types.h>
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9 #include <sys/stat.h>
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11 #include <sys/ioctl.h>
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13 #include <linux/fb.h>
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14 #include <linux/omapfb.h>
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16 #include "../common/emu.h"
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17 #include "../common/menu.h"
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18 #include "../common/plat.h"
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19 #include "../common/arm_utils.h"
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20 #include "../common/input.h"
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21 #include "../linux/sndout_oss.h"
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22 #include "../linux/fbdev.h"
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23 #include "../linux/xenv.h"
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25 #include "asm_utils.h"
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26 #include "version.h"
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28 #include <pico/pico_int.h>
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30 #include <linux/input.h>
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32 static struct vout_fbdev *main_fb, *layer_fb;
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33 // g_layer_* - in use, g_layer_c* - configured custom
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34 int g_layer_cx, g_layer_cy, g_layer_cw, g_layer_ch;
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35 static int g_layer_x, g_layer_y;
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36 static int g_layer_w = 320, g_layer_h = 240;
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37 static int g_osd_fps_x, g_osd_y, doing_bg_frame;
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39 static const char pnd_script_base[] = "sudo -n /usr/pandora/scripts";
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40 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
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41 static unsigned char __attribute__((aligned(4))) fb_copy[g_screen_width * g_screen_height * 2];
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42 static void *temp_frame;
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43 unsigned char *PicoDraw2FB;
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44 const char *renderer_names[] = { NULL };
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45 const char *renderer_names32x[] = { NULL };
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47 static const char * const pandora_gpio_keys[KEY_MAX + 1] = {
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48 [0 ... KEY_MAX] = NULL,
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50 [KEY_LEFT] = "Left",
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51 [KEY_RIGHT] = "Right",
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52 [KEY_DOWN] = "Down",
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54 [KEY_PAGEDOWN] = "X",
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57 [KEY_RIGHTSHIFT]= "L",
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58 [KEY_RIGHTCTRL] = "R",
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59 [KEY_LEFTALT] = "Start",
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60 [KEY_LEFTCTRL] = "Select",
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61 [KEY_MENU] = "Pandora",
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64 struct in_default_bind in_evdev_defbinds[] =
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66 /* MXYZ SACB RLDU */
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67 { KEY_UP, IN_BINDTYPE_PLAYER12, 0 },
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68 { KEY_DOWN, IN_BINDTYPE_PLAYER12, 1 },
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69 { KEY_LEFT, IN_BINDTYPE_PLAYER12, 2 },
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70 { KEY_RIGHT, IN_BINDTYPE_PLAYER12, 3 },
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71 { KEY_S, IN_BINDTYPE_PLAYER12, 4 }, /* B */
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72 { KEY_D, IN_BINDTYPE_PLAYER12, 5 }, /* C */
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73 { KEY_A, IN_BINDTYPE_PLAYER12, 6 }, /* A */
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74 { KEY_ENTER, IN_BINDTYPE_PLAYER12, 7 },
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75 { KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },
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76 { KEY_SPACE, IN_BINDTYPE_EMU, PEVB_MENU },
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78 { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, 4 },
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79 { KEY_END, IN_BINDTYPE_PLAYER12, 5 },
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80 { KEY_HOME, IN_BINDTYPE_PLAYER12, 6 },
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81 { KEY_LEFTALT, IN_BINDTYPE_PLAYER12, 7 },
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82 { KEY_RIGHTSHIFT,IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
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83 { KEY_RIGHTCTRL, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
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84 { KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },
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88 static int get_cpu_clock(void)
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92 f = fopen("/proc/pandora/cpu_mhz_max", "r");
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94 fscanf(f, "%d", &ret);
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100 void pemu_prep_defconfig(void)
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102 defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;
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103 defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX|POPT_EN_MCD_PSYNC;
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104 defaultConfig.scaling = SCALE_2x2_3x2;
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107 void pemu_validate_config(void)
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109 currentConfig.CPUclock = get_cpu_clock();
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112 static void osd_text(int x, int y, const char *text)
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114 int len = strlen(text)*8;
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118 for (h = 0; h < 8; h++) {
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120 p = (unsigned short *)g_screen_ptr + x + g_screen_width*(y + h);
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121 for (i = len; i; i--, p++)
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122 *p = (*p>>2) & 0x39e7;
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124 emu_text_out16(x, y, text);
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127 static void draw_cd_leds(void)
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130 old_reg = Pico_mcd->s68k_regs[0];
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134 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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135 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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136 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =
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137 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =
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138 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;
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139 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =
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140 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =
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141 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;
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144 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);
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145 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
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146 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
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147 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
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148 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
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149 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
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153 static int emuscan(unsigned int num)
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155 DrawLineDest = (unsigned short *)g_screen_ptr + num * g_screen_width;
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160 void pemu_finalize_frame(const char *fps, const char *notice)
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162 if (notice && notice[0])
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163 osd_text(2, g_osd_y, notice);
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164 if (fps && fps[0] && (currentConfig.EmuOpt & EOPT_SHOW_FPS))
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165 osd_text(g_osd_fps_x, g_osd_y, fps);
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166 if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))
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170 void plat_video_flip(void)
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172 g_screen_ptr = vout_fbdev_flip(layer_fb);
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174 // XXX: drain OS event queue here, maybe we'll actually use it someday..
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176 xenv_update(&dummy);
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179 void plat_video_toggle_renderer(int change, int is_menu)
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183 void plat_video_menu_enter(int is_rom_loaded)
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187 void plat_video_menu_begin(void)
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191 void plat_video_menu_end(void)
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193 g_menuscreen_ptr = vout_fbdev_flip(main_fb);
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196 void plat_video_wait_vsync(void)
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198 vout_fbdev_wait_vsync(main_fb);
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201 void plat_status_msg_clear(void)
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203 vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);
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206 void plat_status_msg_busy_next(const char *msg)
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208 plat_status_msg_clear();
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209 pemu_finalize_frame("", msg);
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211 emu_status_msg("");
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215 void plat_status_msg_busy_first(const char *msg)
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217 plat_status_msg_busy_next(msg);
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220 void plat_update_volume(int has_changed, int is_up)
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222 static int prev_frame = 0, wait_frames = 0;
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223 int vol = currentConfig.volume;
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228 if (vol < 99) vol++;
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230 if (vol > 0) vol--;
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233 sndout_oss_setvol(vol, vol);
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234 currentConfig.volume = vol;
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235 emu_status_msg("VOL: %02i", vol);
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236 prev_frame = Pico.m.frame_count;
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240 static void make_bg(int no_scale)
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242 unsigned short *s = (void *)fb_copy;
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245 memset32(g_menubg_src_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2 / 4);
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247 if (!no_scale && g_menuscreen_w >= 640 && g_menuscreen_h >= 480) {
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248 unsigned int t, *d = g_menubg_src_ptr;
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249 d += (g_menuscreen_h / 2 - 480 / 2) * g_menuscreen_w / 2;
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250 d += (g_menuscreen_w / 2 - 640 / 2) / 2;
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251 for (y = 0; y < 240; y++, s += 320, d += g_menuscreen_w*2/2) {
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252 for (x = 0; x < 320; x++) {
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255 d[x] = d[x + g_menuscreen_w / 2] = t;
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261 if (g_menuscreen_w >= 320 && g_menuscreen_h >= 240) {
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262 unsigned short *d = g_menubg_src_ptr;
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263 d += (g_menuscreen_h / 2 - 240 / 2) * g_menuscreen_w;
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264 d += (g_menuscreen_w / 2 - 320 / 2);
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265 for (y = 0; y < 240; y++, s += 320, d += g_menuscreen_w)
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266 memcpy(d, s, 320*2);
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271 void pemu_forced_frame(int no_scale, int do_emu)
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273 doing_bg_frame = 1;
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274 emu_cmn_forced_frame(no_scale, do_emu);
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275 doing_bg_frame = 0;
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277 // making a copy because enabling the layer clears it's mem
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278 memcpy32((void *)fb_copy, g_screen_ptr, sizeof(fb_copy) / 4);
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282 static void oss_write_nonblocking(int len)
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284 // sndout_oss_can_write() is not reliable, only use with no_frmlimit
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285 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))
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288 sndout_oss_write_nb(PsndOut, len);
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291 void pemu_sound_start(void)
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295 if (currentConfig.EmuOpt & EOPT_EN_SOUND)
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297 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;
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299 PsndRerate(Pico.m.frame_count ? 1 : 0);
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302 * for 44k stereo, we do 1470 samples/emu_frame
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303 * OMAP driver does power of 2 buffers, so we need at least 4K buffer.
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304 * The most we can lag is 1K samples, size of OMAP's McBSP FIFO,
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305 * with 2K sample buffer we might sometimes lag more than that,
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306 * thus causing underflows.
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308 printf("starting audio: %i len: %i stereo: %i, pal: %i\n",
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309 PsndRate, PsndLen, is_stereo, Pico.m.pal);
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310 sndout_oss_start(PsndRate, is_stereo, 2);
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311 //sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
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312 PicoWriteSound = oss_write_nonblocking;
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313 plat_update_volume(0, 0);
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314 memset(sndBuffer, 0, sizeof(sndBuffer));
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315 PsndOut = sndBuffer;
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319 void pemu_sound_stop(void)
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324 void pemu_sound_wait(void)
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326 // don't need to do anything, writes will block by themselves
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329 void plat_debug_cat(char *str)
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333 static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)
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335 struct omapfb_plane_info pi;
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336 struct omapfb_mem_info mi;
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339 ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);
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341 perror("QUERY_PLANE");
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345 ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);
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347 perror("QUERY_MEM");
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351 /* must disable when changing stuff */
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354 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
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356 perror("SETUP_PLANE");
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359 mi.size = 320*240*2*4;
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360 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
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362 perror("SETUP_MEM");
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370 pi.enabled = enabled;
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372 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
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374 perror("SETUP_PLANE");
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381 int pnd_setup_layer(int enabled, int x, int y, int w, int h)
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383 return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);
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386 void pnd_restore_layer_data(void)
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388 short *t = (short *)fb_copy + 320*240 / 2 + 160;
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390 // right now this is used by menu, which wants to preview something
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391 // so try to get something on the layer.
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392 if ((t[0] | t[5] | t[13]) == 0)
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393 memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);
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395 memcpy32(g_screen_ptr, (void *)fb_copy, 320*240*2 / 4);
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399 static void apply_filter(int which)
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404 if (pnd_filter_list == NULL)
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407 for (i = 0; i < which; i++)
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408 if (pnd_filter_list[i] == NULL)
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411 if (pnd_filter_list[i] == NULL)
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414 snprintf(buf, sizeof(buf), "%s/op_videofir.sh %s", pnd_script_base, pnd_filter_list[i]);
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418 void emu_video_mode_change(int start_line, int line_count, int is_32cols)
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420 int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;
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422 if (doing_bg_frame)
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425 PicoDrawSetOutFormat(PDF_RGB555, 1);
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426 PicoDrawSetCallbacks(emuscan, NULL);
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430 fb_left = fb_right = 32;
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433 switch (currentConfig.scaling) {
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438 case SCALE_2x2_3x2:
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439 g_layer_w = fb_w * (is_32cols ? 3 : 2);
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440 g_layer_h = fb_h * 2;
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442 case SCALE_2x2_2x2:
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443 g_layer_w = fb_w * 2;
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444 g_layer_h = fb_h * 2;
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446 case SCALE_FULLSCREEN:
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451 g_layer_x = g_layer_cx;
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452 g_layer_y = g_layer_cy;
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453 g_layer_w = g_layer_cw;
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454 g_layer_h = g_layer_ch;
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458 if (currentConfig.scaling != SCALE_CUSTOM) {
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459 // center the layer
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460 g_layer_x = 800 / 2 - g_layer_w / 2;
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461 g_layer_y = 480 / 2 - g_layer_h / 2;
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464 switch (currentConfig.scaling) {
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465 case SCALE_FULLSCREEN:
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467 fb_top = start_line;
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471 g_osd_fps_x = is_32cols ? 232 : 264;
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472 g_osd_y = fb_top + fb_h - 8;
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474 pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
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475 vout_fbdev_clear(layer_fb);
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476 vout_fbdev_resize(layer_fb, fb_w, fb_h, 16, fb_left, fb_right, fb_top, fb_bottom, 3);
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480 void pemu_loop_prep(void)
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482 static int pal_old = -1;
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483 static int filter_old = -1;
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486 if (currentConfig.CPUclock != get_cpu_clock()) {
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487 snprintf(buf, sizeof(buf), "unset DISPLAY; echo y | %s/op_cpuspeed.sh %d",
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488 pnd_script_base, currentConfig.CPUclock);
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492 if (Pico.m.pal != pal_old) {
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493 snprintf(buf, sizeof(buf), "%s/op_lcdrate.sh %d",
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494 pnd_script_base, Pico.m.pal ? 50 : 60);
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496 pal_old = Pico.m.pal;
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499 if (currentConfig.filter != filter_old) {
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500 apply_filter(currentConfig.filter);
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501 filter_old = currentConfig.filter;
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504 // make sure there is no junk left behind the layer
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505 memset32(g_menuscreen_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2 / 4);
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506 g_menuscreen_ptr = vout_fbdev_flip(main_fb);
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508 // emu_video_mode_change will call pnd_setup_layer()
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510 // dirty buffers better go now than during gameplay
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514 pemu_sound_start();
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517 void pemu_loop_end(void)
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521 /* do one more frame for menu bg */
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522 pemu_forced_frame(0, 1);
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524 pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
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527 void plat_wait_till_us(unsigned int us_to)
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532 now = plat_get_ticks_us();
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534 // XXX: need to check NOHZ
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535 diff = (signed int)(us_to - now);
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536 if (diff > 10000) {
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537 //printf("sleep %d\n", us_to - now);
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538 usleep(diff * 15 / 16);
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539 now = plat_get_ticks_us();
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540 //printf(" wake %d\n", (signed)(us_to - now));
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543 while ((signed int)(us_to - now) > 512) {
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544 spend_cycles(1024);
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545 now = plat_get_ticks_us();
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550 void plat_early_init(void)
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554 void plat_init(void)
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556 const char *main_fb_name, *layer_fb_name;
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559 main_fb_name = getenv("FBDEV_MAIN");
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560 if (main_fb_name == NULL)
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561 main_fb_name = "/dev/fb0";
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563 layer_fb_name = getenv("FBDEV_LAYER");
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564 if (layer_fb_name == NULL)
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565 layer_fb_name = "/dev/fb1";
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567 // must set the layer up first to be able to use it
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568 fd = open(layer_fb_name, O_RDWR);
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570 fprintf(stderr, "%s: ", layer_fb_name);
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575 ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);
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578 fprintf(stderr, "failed to set up layer, exiting.\n");
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585 main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);
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586 if (main_fb == NULL) {
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587 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);
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591 g_menuscreen_w = w;
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592 g_menuscreen_h = h;
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593 g_menuscreen_ptr = vout_fbdev_flip(main_fb);
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596 layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 3);
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597 if (layer_fb == NULL) {
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598 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);
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602 if (w != g_screen_width || h != g_screen_height) {
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603 fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);
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606 g_screen_ptr = vout_fbdev_flip(layer_fb);
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608 temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);
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609 if (temp_frame == NULL) {
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610 fprintf(stderr, "OOM\n");
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613 g_menubg_ptr = temp_frame;
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614 g_menubg_src_ptr = temp_frame;
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615 PicoDraw2FB = temp_frame;
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620 in_set_config(in_name_to_id("evdev:gpio-keys"), IN_CFG_KEY_NAMES,
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621 pandora_gpio_keys, sizeof(pandora_gpio_keys));
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625 vout_fbdev_finish(layer_fb);
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627 vout_fbdev_finish(main_fb);
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631 void plat_finish(void)
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634 vout_fbdev_finish(main_fb);
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637 printf("all done\n");
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