X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=pandora%2Femu.c;h=f7c2a2e8e1ac18d971f01f527bf4147ae4a439bc;hb=b188c2b6d0448a9c328a9dcae5ba5c8c8b5273f3;hp=cce52196d20f81d64d2225e6623abacbf1824fc0;hpb=388947f33d88ce3de0d9cb3e873244fbb5162a59;p=libpicofe.git diff --git a/pandora/emu.c b/pandora/emu.c index cce5219..f7c2a2e 100644 --- a/pandora/emu.c +++ b/pandora/emu.c @@ -1,179 +1,44 @@ -// (c) Copyright 2006-2008 notaz, All rights reserved. +// (c) Copyright 2006-2009 notaz, All rights reserved. // Free for non-commercial use. // For commercial use, separate licencing terms must be obtained. #include -#include -#include -#include -#include -#include -#include #include -#include - -#include "../common/arm_utils.h" -#include "../common/fonts.h" #include "../common/emu.h" #include "../common/menu.h" -#include "../common/config.h" -#include "../common/input.h" +#include "../common/plat.h" +#include "../common/arm_utils.h" #include "../linux/sndout_oss.h" +#include "../linux/fbdev.h" #include "asm_utils.h" +#include "version.h" #include -#include -#include -#include -//#define PFRAMES -#define BENCHMARK //#define USE_320_SCREEN 1 -#ifdef BENCHMARK -#define OSD_FPS_X (800-200) -#else -#define OSD_FPS_X (800-120) -#endif - static short __attribute__((aligned(4))) sndBuffer[2*44100/50]; -static struct timeval noticeMsgTime = { 0, 0 }; // when started showing -static int osd_fps_x; -unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer -int reset_timing = 0; +static unsigned char temp_frame[g_screen_width * g_screen_height * 2]; +unsigned char *PicoDraw2FB = temp_frame; +char cpu_clk_name[] = "unused"; -#define PICO_PEN_ADJUST_X 4 -#define PICO_PEN_ADJUST_Y 2 -static int pico_pen_x = 0, pico_pen_y = 240/2; -static void emu_msg_cb(const char *msg); -static void emu_msg_tray_open(void); - - -void plat_status_msg(const char *format, ...) +void pemu_prep_defconfig(void) { - va_list vl; - - va_start(vl, format); - vsnprintf(noticeMsg, sizeof(noticeMsg), fmt, vl); - va_end(vl); + // XXX: move elsewhere + g_menubg_ptr = temp_frame; - gettimeofday(¬iceMsgTime, 0); + defaultConfig.EmuOpt |= EOPT_VSYNC; } -int emu_getMainDir(char *dst, int len) +void pemu_validate_config(void) { - extern char **g_argv; - int j; - - strncpy(dst, g_argv[0], len); - len -= 32; // reserve - if (len < 0) len = 0; - dst[len] = 0; - for (j = strlen(dst); j > 0; j--) - if (dst[j] == '/') { dst[j+1] = 0; break; } - - return j + 1; } -void emu_Init(void) -{ - // make temp buffer for alt renderer - PicoDraw2FB = malloc((8+320)*(8+240+8)); - if (!PicoDraw2FB) - { - printf("PicoDraw2FB == 0\n"); - } - - // make dirs for saves, cfgs, etc. - mkdir("mds", 0777); - mkdir("srm", 0777); - mkdir("brm", 0777); - mkdir("cfg", 0777); - - PicoInit(); - PicoMessage = emu_msg_cb; - PicoMCDopenTray = emu_msg_tray_open; - PicoMCDcloseTray = menu_loop_tray; -} - - -void emu_Deinit(void) -{ - // save SRAM - if((currentConfig.EmuOpt & 1) && SRam.changed) { - emu_SaveLoadGame(0, 1); - SRam.changed = 0; - } - - if (!(currentConfig.EmuOpt & 0x20)) { - config_writelrom(PicoConfigFile); -#ifndef NO_SYNC - sync(); -#endif - } - - free(PicoDraw2FB); - - PicoExit(); -} - -void emu_prepareDefaultConfig(void) -{ - memset(&defaultConfig, 0, sizeof(defaultConfig)); - defaultConfig.EmuOpt = 0x8f | 0x00600; // | <- confirm_save, cd_leds - defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC; - defaultConfig.s_PicoOpt |= POPT_ACC_SPRITES|POPT_EN_MCD_GFX; - defaultConfig.EmuOpt &= ~8; // no save gzip - defaultConfig.s_PsndRate = 44100; - defaultConfig.s_PicoRegion = 0; - defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP - defaultConfig.s_PicoCDBuffers = 0; - defaultConfig.Frameskip = 0; - defaultConfig.CPUclock = 200; - defaultConfig.volume = 50; - defaultConfig.scaling = 0; - defaultConfig.turbo_rate = 15; -} - -static void textOut16(int x, int y, const char *text) -{ - int i,l,len=strlen(text); - unsigned int *screen = (unsigned int *)((unsigned short *)g_screen_ptr + (x&~1) + y*g_screen_width); - - for (i = 0; i < len; i++) - { - for (l=0;l<16;) - { - unsigned char fd = fontdata8x8[((text[i])*8)+l/2]; - unsigned int *d = &screen[l*g_screen_width/2]; - if (fd&0x80) d[0]=0xffffffff; - if (fd&0x40) d[1]=0xffffffff; - if (fd&0x20) d[2]=0xffffffff; - if (fd&0x10) d[3]=0xffffffff; - if (fd&0x08) d[4]=0xffffffff; - if (fd&0x04) d[5]=0xffffffff; - if (fd&0x02) d[6]=0xffffffff; - if (fd&0x01) d[7]=0xffffffff; - l++; d = &screen[l*g_screen_width/2]; - if (fd&0x80) d[0]=0xffffffff; - if (fd&0x40) d[1]=0xffffffff; - if (fd&0x20) d[2]=0xffffffff; - if (fd&0x10) d[3]=0xffffffff; - if (fd&0x08) d[4]=0xffffffff; - if (fd&0x04) d[5]=0xffffffff; - if (fd&0x02) d[6]=0xffffffff; - if (fd&0x01) d[7]=0xffffffff; - l++; - } - screen += 8; - } -} - - +// FIXME: cleanup static void osd_text(int x, int y, const char *text) { int len = strlen(text)*8; @@ -186,7 +51,7 @@ static void osd_text(int x, int y, const char *text) p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h)); for (i = len; i; i--, p++) *p = 0xe0e0e0e0; } - emu_textOut8(x, y, text); + emu_text_out8(x, y, text); } else { int *p, i, h; x &= ~1; // align x @@ -195,7 +60,7 @@ static void osd_text(int x, int y, const char *text) p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h)); for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7; } - textOut16(x, y, text); + text_out16(x, y, text); } } @@ -227,30 +92,10 @@ static void draw_cd_leds(void) } } -static void draw_pico_ptr(void) -{ - unsigned short *p = (unsigned short *)g_screen_ptr; - - // only if pen enabled and for 16bit modes - if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return; - - if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER)) - p += 32; - - p += g_screen_width * (pico_pen_y + PICO_PEN_ADJUST_Y); - p += pico_pen_x + PICO_PEN_ADJUST_X; - p[0] ^= 0xffff; - p[319] ^= 0xffff; - p[320] ^= 0xffff; - p[321] ^= 0xffff; - p[640] ^= 0xffff; -} - #ifdef USE_320_SCREEN static int EmuScanBegin16(unsigned int num) { - if (!(Pico.video.reg[1]&8)) num += 8; DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2; //int w = (Pico.video.reg[12]&1) ? 320 : 256; //DrawLineDest = (unsigned short *)g_screen_ptr + num*w; @@ -268,7 +113,6 @@ static int EmuScanEnd16(unsigned int num) int sh = Pico.video.reg[0xC]&8; int len, mask = 0xff; - if (!(Pico.video.reg[1]&8)) num += 8; pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2; if (Pico.m.dirtyPal) @@ -300,227 +144,111 @@ static int EmuScanEnd16(unsigned int num) return 0; } -#endif // USE_320_SCREEN - -int localPal[0x100]; -static void (*vidCpyM2)(void *dest, void *src) = NULL; - -static void blit(const char *fps, const char *notice) +static int EmuScanEnd16_32x(unsigned int num) { - int emu_opt = currentConfig.EmuOpt; - - if (PicoOpt&0x10) - { - // 8bit fast renderer - if (Pico.m.dirtyPal) { - Pico.m.dirtyPal = 0; - vidConvCpyRGB32(localPal, Pico.cram, 0x40); - // feed new palette to our device - // gp2x_video_setpalette(localPal, 0x40); - } - // a hack for VR - if (PicoRead16Hook == PicoSVPRead16) - memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328); - // do actual copy - vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8); - } - else if (!(emu_opt&0x80)) - { - // 8bit accurate renderer - if (Pico.m.dirtyPal) - { - int pallen = 0xc0; - Pico.m.dirtyPal = 0; - if (Pico.video.reg[0xC]&8) // shadow/hilight mode - { - vidConvCpyRGB32(localPal, Pico.cram, 0x40); - vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40); - vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); - memcpy32(localPal+0xc0, localPal+0x40, 0x40); - pallen = 0x100; - } - else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes - vidConvCpyRGB32(localPal, Pico.cram, 0x40); - vidConvCpyRGB32(localPal+0x40, HighPal, 0x40); - vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40); - pallen = 0xc0; - } - else { - vidConvCpyRGB32(localPal, Pico.cram, 0x40); - memcpy32(localPal+0x80, localPal, 0x40); - } - if (pallen > 0xc0) { - localPal[0xc0] = 0x0000c000; - localPal[0xd0] = 0x00c00000; - localPal[0xe0] = 0x00000000; // reserved pixels for OSD - localPal[0xf0] = 0x00ffffff; - } - // gp2x_video_setpalette(localPal, pallen); - } + unsigned int *ps; + unsigned int *pd; + int len; + + ps = (unsigned int *)temp_frame; + pd = (unsigned int *)g_screen_ptr + (num*800*2 + 800/2 - 320*2/2) / 2; + + for (len = 320/2; len > 0; len--, ps++) { + unsigned int p, p1; + p1 = *ps; + p = p1 << 16; + p |= p >> 16; + *pd = pd[800/2] = p; + pd++; + + p = p1 >> 16; + p |= p << 16; + *pd = pd[800/2] = p; + pd++; } - if (notice || (emu_opt & 2)) { - int h = g_screen_height-16; - if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16; - if (notice) osd_text(4, h, notice); - if (emu_opt & 2) - osd_text(osd_fps_x, h, fps); + return 0; +} +#endif // USE_320_SCREEN + +void pemu_finalize_frame(const char *fps, const char *notice) +{ + if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) { + if (notice) + osd_text(4, 464, notice); + if (currentConfig.EmuOpt & EOPT_SHOW_FPS) + osd_text(640, 464, fps); } - if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD)) + if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS)) draw_cd_leds(); - if (PicoAHW & PAHW_PICO) - draw_pico_ptr(); - - //gp2x_video_wait_vsync(); - // gp2x_video_flip(); } - -// clears whole screen or just the notice area (in all buffers) -static void clearArea(int full) +void plat_video_toggle_renderer(int is_next, int force_16bpp, int is_menu) { - if (full) memset(g_screen_ptr, 0, g_screen_width*g_screen_height*2); - else memset((short *)g_screen_ptr + g_screen_width * (g_screen_height - 16), 0, - g_screen_width * 16 * 2); + // this will auto-select SMS/32X renderers + PicoDrawSetColorFormat(1); } - -static void vidResetMode(void) +void plat_video_menu_enter(int is_rom_loaded) { -#if 0 - if (PicoOpt&0x10) { - gp2x_video_changemode(8); - } else if (currentConfig.EmuOpt&0x80) { - gp2x_video_changemode(16); -#ifdef USE_320_SCREEN - PicoDrawSetColorFormat(1); - PicoScanBegin = EmuScanBegin16; -#else - PicoDrawSetColorFormat(-1); - PicoScanEnd = EmuScanEnd16; -#endif - } else { - gp2x_video_changemode(8); - PicoDrawSetColorFormat(2); - PicoScanBegin = EmuScanBegin8; - } - if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) { - // setup pal for 8-bit modes - localPal[0xc0] = 0x0000c000; // MCD LEDs - localPal[0xd0] = 0x00c00000; - localPal[0xe0] = 0x00000000; // reserved pixels for OSD - localPal[0xf0] = 0x00ffffff; - gp2x_video_setpalette(localPal, 0x100); - gp2x_memset_all_buffers(0, 0xe0, 320*240); - gp2x_video_flip(); - } - Pico.m.dirtyPal = 1; - // reset scaling - if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) - gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224); - else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240); -#else -#ifdef USE_320_SCREEN - PicoDrawSetColorFormat(1); - PicoScanBegin = EmuScanBegin16; -#else - PicoDrawSetColorFormat(-1); - PicoScanEnd = EmuScanEnd16; -#endif -#endif } +void plat_video_menu_begin(void) +{ + memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4); +} -static void emu_msg_cb(const char *msg) +void plat_video_menu_end(void) { -/* - if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) { - // 8-bit renderers - gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16), 0xe0, g_screen_width*16); - osd_text(4, g_screen_height-16, msg); - gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16), - g_screen_width*(g_screen_height-16), g_screen_width*16); - } else { - // 16bit accurate renderer - gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16)*2, 0, g_screen_width*16*2); - osd_text(4, g_screen_height-16, msg); - gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16)*2, - g_screen_width*(g_screen_height-16)*2, g_screen_width*16*2); - } - gettimeofday(¬iceMsgTime, 0); - noticeMsgTime.tv_sec -= 2; -*/ - /* assumption: emu_msg_cb gets called only when something slow is about to happen */ - reset_timing = 1; + plat_video_flip(); } -static void emu_state_cb(const char *str) +void plat_status_msg_clear(void) { - clearArea(0); - blit("", str); + int s = g_screen_width * g_screen_height * 2; + int l = g_screen_width * 16 * 2; + int i; + + for (i = 0; i < fbdev_buffer_count; i++) + memset32((int *)((char *)fbdev_buffers[i] + s - l), 0, l / 4); } -static void emu_msg_tray_open(void) +void plat_status_msg_busy_next(const char *msg) { - strcpy(noticeMsg, "CD tray opened"); - gettimeofday(¬iceMsgTime, 0); + plat_status_msg_clear(); + pemu_finalize_frame("", msg); + plat_video_flip(); + emu_status_msg(""); + reset_timing = 1; } +void plat_status_msg_busy_first(const char *msg) +{ +// memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4); + plat_status_msg_busy_next(msg); +} -static void update_volume(int has_changed, int is_up) +void plat_update_volume(int has_changed, int is_up) { static int prev_frame = 0, wait_frames = 0; int vol = currentConfig.volume; if (has_changed) { - if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12) - wait_frames++; - else { - if (is_up) { - if (vol < 99) vol++; - } else { - if (vol > 0) vol--; - } - wait_frames = 0; - sndout_oss_setvol(vol, vol); - currentConfig.volume = vol; + if (is_up) { + if (vol < 99) vol++; + } else { + if (vol > 0) vol--; } - sprintf(noticeMsg, "VOL: %02i", vol); - gettimeofday(¬iceMsgTime, 0); + wait_frames = 0; + sndout_oss_setvol(vol, vol); + currentConfig.volume = vol; + emu_status_msg("VOL: %02i", vol); prev_frame = Pico.m.frame_count; } - - // set the right mixer func - if (!(PicoOpt&8)) return; // just use defaults for mono - if (vol >= 5) - PsndMix_32_to_16l = mix_32_to_16l_stereo; - else { - mix_32_to_16l_level = 5 - vol; - PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl; - } } - -static void updateSound(int len) -{ - if (PicoOpt&8) len<<=1; - - /* avoid writing audio when lagging behind to prevent audio lag */ - if (PicoSkipFrame != 2) - sndout_oss_write(PsndOut, len<<1); -} - - -static void SkipFrame(int do_audio) -{ - PicoSkipFrame=do_audio ? 1 : 2; - PicoFrame(); - PicoSkipFrame=0; -} - - -void emu_forcedFrame(int opts) +void pemu_forced_frame(int opts) { int po_old = PicoOpt; int eo_old = currentConfig.EmuOpt; @@ -529,314 +257,172 @@ void emu_forcedFrame(int opts) PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites currentConfig.EmuOpt |= 0x80; - //vidResetMode(); -#ifdef USE_320_SCREEN - PicoDrawSetColorFormat(1); - PicoScanBegin = EmuScanBegin16; -#else - PicoDrawSetColorFormat(-1); - PicoScanEnd = EmuScanEnd16; -#endif Pico.m.dirtyPal = 1; PicoFrameDrawOnly(); -/* - if (!(Pico.video.reg[12]&1)) { - vidCpyM2 = vidCpyM2_32col; - clearArea(1); - } else vidCpyM2 = vidCpyM2_40col; - - vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8); - vidConvCpyRGB32(localPal, Pico.cram, 0x40); - gp2x_video_setpalette(localPal, 0x40); -*/ PicoOpt = po_old; currentConfig.EmuOpt = eo_old; } -void emu_platformDebugCat(char *str) +static void updateSound(int len) { - // nothing -} + unsigned int t; -static void simpleWait(int thissec, int lim_time) -{ - struct timeval tval; + len <<= 1; + if (PicoOpt & POPT_EN_STEREO) + len <<= 1; - spend_cycles(1024); - gettimeofday(&tval, 0); - if (thissec != tval.tv_sec) tval.tv_usec+=1000000; + // sndout_oss_can_write() not reliable.. + if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len)) + return; - while (tval.tv_usec < lim_time) - { - spend_cycles(1024); - gettimeofday(&tval, 0); - if (thissec != tval.tv_sec) tval.tv_usec+=1000000; - } + /* avoid writing audio when lagging behind to prevent audio lag */ + if (PicoSkipFrame == 2) + return; + + t = plat_get_ticks_ms(); + sndout_oss_write(PsndOut, len); + t = plat_get_ticks_ms() - t; + if (t > 1) + printf("audio lag %u\n", t); } -void emu_startSound(void) +void pemu_sound_start(void) { - static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0; int target_fps = Pico.m.pal ? 50 : 60; PsndOut = NULL; - if (currentConfig.EmuOpt & 4) + if (currentConfig.EmuOpt & EOPT_EN_SOUND) { - int snd_excess_add; - if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old) - PsndRerate(Pico.m.frame_count ? 1 : 0); + int snd_excess_add, frame_samples; + int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0; + + PsndRerate(Pico.m.frame_count ? 1 : 0); + + frame_samples = PsndLen; + snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps; + if (snd_excess_add != 0) + frame_samples++; - snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps; printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n", - PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal); - sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3); - sndout_oss_setvol(currentConfig.volume, currentConfig.volume); + PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal); + sndout_oss_start(PsndRate, frame_samples * 2, is_stereo); + //sndout_oss_setvol(currentConfig.volume, currentConfig.volume); PicoWriteSound = updateSound; - update_volume(0, 0); + plat_update_volume(0, 0); memset(sndBuffer, 0, sizeof(sndBuffer)); PsndOut = sndBuffer; - PsndRate_old = PsndRate; - PicoOpt_old = PicoOpt; - pal_old = Pico.m.pal; } } -void emu_endSound(void) +void pemu_sound_stop(void) { + sndout_oss_stop(); } -/* wait until we can write more sound */ -void emu_waitSound(void) +void pemu_sound_wait(void) { // don't need to do anything, writes will block by themselves } -void emu_Loop(void) +void plat_debug_cat(char *str) { - char fpsbuff[24]; // fps count c string - struct timeval tval; // timing - int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync - int frames_done, frames_shown, thissec; // actual frames - int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i; - char *notice = 0; - - printf("entered emu_Loop()\n"); - - fpsbuff[0] = 0; - - // make sure we are in correct mode - vidResetMode(); - Pico.m.dirtyPal = 1; - oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc; - - // pal/ntsc might have changed, reset related stuff - target_fps = Pico.m.pal ? 50 : 60; - target_frametime = 1000000/target_fps; - reset_timing = 1; - - emu_startSound(); - - // prepare CD buffer - if (PicoAHW & PAHW_MCD) PicoCDBufferInit(); - - // calc vsync offset to sync timing code with vsync - if (currentConfig.EmuOpt&0x2000) { - gettimeofday(&tval, 0); - //gp2x_video_wait_vsync(); - gettimeofday(&tval, 0); - vsync_offset = tval.tv_usec; - while (vsync_offset >= target_frametime) - vsync_offset -= target_frametime; - if (!vsync_offset) vsync_offset++; - printf("vsync_offset: %i\n", vsync_offset); - } else - vsync_offset = 0; - - frames_done = frames_shown = thissec = - pframes_done = pframes_shown = pthissec = 0; - - // loop - while (engineState == PGS_Running) - { - int modes; - - gettimeofday(&tval, 0); - if (reset_timing) { - reset_timing = 0; - pthissec = tval.tv_sec; - pframes_shown = pframes_done = tval.tv_usec/target_frametime; - } +} - // show notice message? - if (noticeMsgTime.tv_sec) - { - static int noticeMsgSum; - if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec - noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0; - clearArea(0); - notice = 0; - } else { - int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2]; - if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; } - notice = noticeMsg; - } - } +void emu_video_mode_change(int start_line, int line_count, int is_32cols) +{ + int i; - // check for mode changes - modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8); - if (modes != oldmodes) - { - int scalex = g_screen_width; - osd_fps_x = OSD_FPS_X; - if (modes & 4) { - vidCpyM2 = vidCpyM2_40col; - } else { - if (PicoOpt & 0x100) { - vidCpyM2 = vidCpyM2_32col_nobord; - scalex = 256; - osd_fps_x = OSD_FPS_X - 64; - } else { - vidCpyM2 = vidCpyM2_32col; - } - } - //if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode - // gp2x_video_RGB_setscaling(8, scalex, 224); - // else gp2x_video_RGB_setscaling(0, scalex, 240); - oldmodes = modes; - clearArea(1); - } + // clear whole screen in all buffers + for (i = 0; i < fbdev_buffer_count; i++) + memset32(fbdev_buffers[i], 0, g_screen_width * g_screen_height * 2 / 4); - // second changed? - if (thissec != tval.tv_sec) - { -#ifdef BENCHMARK - static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4]; - if (++bench == 4) { - bench = 0; - bench_fps_s = bench_fps / 4; - bf[bfp++ & 3] = bench_fps / 4; - bench_fps = 0; - } - bench_fps += frames_shown; - sprintf(fpsbuff, "%3i/%3i/%3i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2); - printf("%s\n", fpsbuff); +#ifdef USE_320_SCREEN + PicoDrawSetColorFormat(1); + PicoScanBegin = EmuScanBegin16; #else - if (currentConfig.EmuOpt & 2) { - sprintf(fpsbuff, "%3i/%3i", frames_shown, frames_done); - if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; } - } -#endif - frames_shown = frames_done = 0; - thissec = tval.tv_sec; - } -#ifdef PFRAMES - sprintf(fpsbuff, "%i", Pico.m.frame_count); + if (PicoAHW & PAHW_32X) { + DrawLineDest = (unsigned short *)temp_frame; + PicoDrawSetColorFormat(1); + PicoScanBegin = NULL; + PicoScanEnd = EmuScanEnd16_32x; + } else { + PicoDrawSetColorFormat(-1); + PicoScanBegin = NULL; + PicoScanEnd = EmuScanEnd16; + } #endif +} - if (pthissec != tval.tv_sec) - { - if (PsndOut == 0 && currentConfig.Frameskip >= 0) { - pframes_done = pframes_shown = 0; - } else { - // it is quite common for this implementation to leave 1 fame unfinished - // when second changes, but we don't want buffer to starve. - if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) { - emu_update_input(); - SkipFrame(1); pframes_done++; - } - - pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0; - pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0; - if (pframes_shown > pframes_done) pframes_shown = pframes_done; - } - pthissec = tval.tv_sec; - } - - lim_time = (pframes_done+1) * target_frametime + vsync_offset; - if (currentConfig.Frameskip >= 0) // frameskip enabled - { - for(i = 0; i < currentConfig.Frameskip; i++) { - emu_update_input(); - SkipFrame(1); pframes_done++; frames_done++; - if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled - gettimeofday(&tval, 0); - if (pthissec != tval.tv_sec) tval.tv_usec+=1000000; - if (tval.tv_usec < lim_time) { // we are too fast - simpleWait(pthissec, lim_time); - } - } - lim_time += target_frametime; - } - } - else if (tval.tv_usec > lim_time) // auto frameskip - { - // no time left for this frame - skip - if (tval.tv_usec - lim_time >= 300000) { - /* something caused a slowdown for us (disk access? cache flush?) - * try to recover by resetting timing... */ - reset_timing = 1; - continue; - } - emu_update_input(); - SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++; - continue; - } - - emu_update_input(); - PicoFrame(); +void pemu_loop_prep(void) +{ + emu_video_mode_change(0, 0, 0); + pemu_sound_start(); +} - // check time - gettimeofday(&tval, 0); - if (pthissec != tval.tv_sec) tval.tv_usec+=1000000; +void pemu_loop_end(void) +{ + int po_old = PicoOpt; + int eo_old = currentConfig.EmuOpt; - if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection - reset_timing = 1; -#if 1 - else if (PsndOut != NULL || currentConfig.Frameskip < 0) - { - // sleep or vsync if we are still too fast - // usleep sleeps for ~20ms minimum, so it is not a solution here - if (!reset_timing && tval.tv_usec < lim_time) - { - // we are too fast - if (vsync_offset) { - if (lim_time - tval.tv_usec > target_frametime/2) - simpleWait(pthissec, lim_time - target_frametime/4); - // gp2x_video_wait_vsync(); - } else { - simpleWait(pthissec, lim_time); - } - } - } -#endif - blit(fpsbuff, notice); + pemu_sound_stop(); + memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4); - pframes_done++; pframes_shown++; - frames_done++; frames_shown++; - } + /* do one more frame for menu bg */ + PicoOpt &= ~POPT_ALT_RENDERER; + PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES; + currentConfig.EmuOpt |= EOPT_16BPP; - emu_changeFastForward(0); + PicoDrawSetColorFormat(1); + Pico.m.dirtyPal = 1; + PicoFrame(); - if (PicoAHW & PAHW_MCD) PicoCDBufferFree(); + PicoOpt = po_old; + currentConfig.EmuOpt = eo_old; +} - // save SRAM - if((currentConfig.EmuOpt & 1) && SRam.changed) { - emu_state_cb("Writing SRAM/BRAM.."); - emu_SaveLoadGame(0, 1); - SRam.changed = 0; +void plat_wait_till_us(unsigned int us_to) +{ + unsigned int now; + signed int diff; + + now = plat_get_ticks_us(); + + // XXX: need to check NOHZ and djw kernel + diff = (signed int)(us_to - now); + if (diff > 10000) { + //printf("sleep %d\n", us_to - now); + usleep(diff * 15 / 16); + now = plat_get_ticks_us(); + //printf(" wake %d\n", (signed)(us_to - now)); } - - // if in 8bit mode, generate 16bit image for menu background - if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) - emu_forcedFrame(POPT_EN_SOFTSCALE); +/* + while ((signed int)(us_to - now) > 512) { + spend_cycles(1024); + now = plat_get_ticks_us(); + } +*/ } - -void emu_ResetGame(void) +const char *plat_get_credits(void) { - PicoReset(); - reset_timing = 1; + return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n" + "Credits:\n" + "fDave: Cyclone 68000 core,\n" + " base code of PicoDrive\n" + "Reesy & FluBBa: DrZ80 core\n" + "MAME devs: YM2612 and SN76496 cores\n" + "rlyeh and others: minimal SDK\n" + "Squidge: mmuhack\n" + "Dzz: ARM940 sample\n" + "GnoStiC / Puck2099: USB joy code\n" + "craigix: GP2X hardware\n" + "ketchupgun: skin design\n" + "\n" + "special thanks (for docs, ideas):\n" + " Charles MacDonald, Haze,\n" + " Stephane Dallongeville,\n" + " Lordus, Exophase, Rokas,\n" + " Nemesis, Tasco Deluxe"; } -