--- /dev/null
+// (c) Copyright 2006-2009 notaz, All rights reserved.\r
+// Free for non-commercial use.\r
+\r
+// For commercial use, separate licencing terms must be obtained.\r
+\r
+#include <stdio.h>\r
+#include <unistd.h>\r
+\r
+#include "../common/emu.h"\r
+#include "../common/menu.h"\r
+#include "../common/plat.h"\r
+#include "../common/arm_utils.h"\r
+#include "../linux/sndout_oss.h"\r
+#include "version.h"\r
+\r
+#include <pico/pico_int.h>\r
+\r
+\r
+static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
+unsigned char temp_frame[320 * 240 * 2];\r
+unsigned char *PicoDraw2FB = temp_frame;\r
+static int osd_fps_x;\r
+char cpu_clk_name[] = "unused";\r
+\r
+extern void update_screen(void);\r
+\r
+\r
+void pemu_prep_defconfig(void)\r
+{\r
+ // XXX: move elsewhere\r
+ g_menubg_ptr = temp_frame;\r
+}\r
+\r
+void pemu_validate_config(void)\r
+{\r
+ extern int PicoOpt;\r
+// PicoOpt &= ~POPT_EXT_FM;\r
+ PicoOpt &= ~POPT_EN_SVP_DRC;\r
+}\r
+\r
+// FIXME: dupes from GP2X, need cleanup\r
+static void (*osd_text)(int x, int y, const char *text);\r
+\r
+static void osd_text8(int x, int y, const char *text)\r
+{\r
+ int len = strlen(text)*8;\r
+ int *p, i, h, offs;\r
+\r
+ len = (len+3) >> 2;\r
+ for (h = 0; h < 8; h++) {\r
+ offs = (x + g_screen_width * (y+h)) & ~3;\r
+ p = (int *) ((char *)g_screen_ptr + offs);\r
+ for (i = len; i; i--, p++)\r
+ *p = 0xe0e0e0e0;\r
+ }\r
+ emu_text_out8(x, y, text);\r
+}\r
+\r
+static void osd_text16(int x, int y, const char *text)\r
+{\r
+ int len = strlen(text)*8;\r
+ int *p, i, h, offs;\r
+\r
+ len = (len+1) >> 1;\r
+ for (h = 0; h < 8; h++) {\r
+ offs = (x + g_screen_width * (y+h)) & ~1;\r
+ p = (int *) ((short *)g_screen_ptr + offs);\r
+ for (i = len; i; i--, p++)\r
+ *p = (*p >> 2) & 0x39e7;\r
+ }\r
+ emu_text_out16(x, y, text);\r
+}\r
+\r
+static void draw_cd_leds(void)\r
+{\r
+ int led_reg, pitch, scr_offs, led_offs;\r
+ led_reg = Pico_mcd->s68k_regs[0];\r
+\r
+ pitch = 320;\r
+ led_offs = 4;\r
+ scr_offs = pitch * 2 + 4;\r
+\r
+ if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r
+ #define p(x) px[(x) >> 2]\r
+ // 8-bit modes\r
+ unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);\r
+ unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
+ unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
+ p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
+ p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
+ #undef p\r
+ } else {\r
+ #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]\r
+ // 16-bit modes\r
+ unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);\r
+ unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;\r
+ unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;\r
+ p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
+ p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
+ #undef p\r
+ }\r
+}\r
+\r
+static int EmuScanBegin16(unsigned int num)\r
+{\r
+ DrawLineDest = (unsigned short *)g_screen_ptr + num * g_screen_width;\r
+\r
+ return 0;\r
+}\r
+\r
+void pemu_update_display(const char *fps, const char *notice)\r
+{\r
+ if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r
+ if (notice)\r
+ osd_text(4, g_screen_height - 8, notice);\r
+ if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r
+ osd_text(osd_fps_x, g_screen_height - 8, fps);\r
+ }\r
+ if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
+ draw_cd_leds();\r
+\r
+ update_screen();\r
+}\r
+\r
+void plat_video_toggle_renderer(int is_next, int force_16bpp, int is_menu)\r
+{\r
+ // this will auto-select SMS/32X renderers\r
+ PicoDrawSetColorFormat(1);\r
+}\r
+\r
+void plat_video_menu_enter(int is_rom_loaded)\r
+{\r
+}\r
+\r
+void plat_video_menu_begin(void)\r
+{\r
+ memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4);\r
+}\r
+\r
+void plat_video_menu_end(void)\r
+{\r
+ update_screen();\r
+}\r
+\r
+void plat_status_msg_clear(void)\r
+{\r
+ unsigned short *d = (unsigned short *)g_screen_ptr + g_screen_width * g_screen_height;\r
+ int l = g_screen_width * 8;\r
+ memset32((int *)(d - l), 0, l * 2 / 4);\r
+}\r
+\r
+void plat_status_msg_busy_next(const char *msg)\r
+{\r
+ plat_status_msg_clear();\r
+ pemu_update_display("", msg);\r
+ emu_status_msg("");\r
+ reset_timing = 1;\r
+}\r
+\r
+void plat_status_msg_busy_first(const char *msg)\r
+{\r
+// memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
+ plat_status_msg_busy_next(msg);\r
+}\r
+\r
+void plat_update_volume(int has_changed, int is_up)\r
+{\r
+}\r
+\r
+void pemu_forced_frame(int opts)\r
+{\r
+ int po_old = PicoOpt;\r
+ int eo_old = currentConfig.EmuOpt;\r
+\r
+ PicoOpt &= ~POPT_ALT_RENDERER;\r
+ PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
+ currentConfig.EmuOpt |= EOPT_16BPP;\r
+\r
+ PicoDrawSetColorFormat(1);\r
+ PicoScanBegin = EmuScanBegin16;\r
+\r
+ Pico.m.dirtyPal = 1;\r
+ PicoFrameDrawOnly();\r
+\r
+ PicoOpt = po_old;\r
+ currentConfig.EmuOpt = eo_old;\r
+}\r
+\r
+static void updateSound(int len)\r
+{\r
+ len <<= 1;\r
+ if (PicoOpt & POPT_EN_STEREO)\r
+ len <<= 1;\r
+\r
+ if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r
+ return;\r
+\r
+ /* avoid writing audio when lagging behind to prevent audio lag */\r
+ if (PicoSkipFrame != 2)\r
+ sndout_oss_write(PsndOut, len);\r
+}\r
+\r
+void pemu_sound_start(void)\r
+{\r
+ static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
+ int target_fps = Pico.m.pal ? 50 : 60;\r
+\r
+ PsndOut = NULL;\r
+\r
+ if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
+ {\r
+ int snd_excess_add;\r
+ if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)\r
+ PsndRerate(Pico.m.frame_count ? 1 : 0);\r
+\r
+ snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
+ printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
+ PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
+ sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
+ sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
+ PicoWriteSound = updateSound;\r
+ plat_update_volume(0, 0);\r
+ memset(sndBuffer, 0, sizeof(sndBuffer));\r
+ PsndOut = sndBuffer;\r
+ PsndRate_old = PsndRate;\r
+ PicoOpt_old = PicoOpt;\r
+ pal_old = Pico.m.pal;\r
+ }\r
+}\r
+\r
+void pemu_sound_stop(void)\r
+{\r
+}\r
+\r
+void pemu_sound_wait(void)\r
+{\r
+ // don't need to do anything, writes will block by themselves\r
+}\r
+\r
+void plat_debug_cat(char *str)\r
+{\r
+}\r
+\r
+void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
+{\r
+ osd_fps_x = 260;\r
+\r
+ // clear whole screen in all buffers\r
+ memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
+}\r
+\r
+void pemu_loop_prep(void)\r
+{\r
+ PicoDrawSetColorFormat(1);\r
+ PicoScanBegin = EmuScanBegin16;\r
+ osd_text = osd_text16;\r
+\r
+ pemu_sound_start();\r
+}\r
+\r
+void pemu_loop_end(void)\r
+{\r
+ int po_old = PicoOpt;\r
+ int eo_old = currentConfig.EmuOpt;\r
+\r
+ pemu_sound_stop();\r
+ memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
+\r
+ /* do one more frame for menu bg */\r
+ PicoOpt &= ~POPT_ALT_RENDERER;\r
+ PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r
+ currentConfig.EmuOpt |= EOPT_16BPP;\r
+\r
+ PicoDrawSetColorFormat(1);\r
+ Pico.m.dirtyPal = 1;\r
+ PicoFrame();\r
+\r
+ PicoOpt = po_old;\r
+ currentConfig.EmuOpt = eo_old;\r
+}\r
+\r
+void plat_wait_till_us(unsigned int us_to)\r
+{\r
+ unsigned int now;\r
+\r
+ now = plat_get_ticks_us();\r
+\r
+ while ((signed int)(us_to - now) > 512)\r
+ {\r
+ usleep(1024);\r
+ now = plat_get_ticks_us();\r
+ }\r
+}\r
+\r
+void plat_video_wait_vsync(void)\r
+{\r
+}\r
+\r
+const char *plat_get_credits(void)\r
+{\r
+ return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r
+ "Credits:\n"\r
+ "fDave: Cyclone 68000 core,\n"\r
+ " base code of PicoDrive\n"\r
+ "Reesy & FluBBa: DrZ80 core\n"\r
+ "MAME devs: YM2612 and SN76496 cores\n"\r
+ "rlyeh and others: minimal SDK\n"\r
+ "Squidge: mmuhack\n"\r
+ "Dzz: ARM940 sample\n"\r
+ "GnoStiC / Puck2099: USB joy code\n"\r
+ "craigix: GP2X hardware\n"\r
+ "ketchupgun: skin design\n"\r
+ "\n"\r
+ "special thanks (for docs, ideas):\n"\r
+ " Charles MacDonald, Haze,\n"\r
+ " Stephane Dallongeville,\n"\r
+ " Lordus, Exophase, Rokas,\n"\r
+ " Nemesis, Tasco Deluxe";\r
+}\r
notaz.gp2x.de / libpicofe.git / blobdiff