mirror of
https://github.com/RaySollium99/libpicofe.git
synced 2025-09-05 06:47:45 -04:00
67dfdf5fa6
git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@395 be3aeb3a-fb24-0410-a615-afba39da0efa
979 lines
26 KiB
C
979 lines
26 KiB
C
// (c) Copyright 2006-2007 notaz, All rights reserved.
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// Free for non-commercial use.
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// For commercial use, separate licencing terms must be obtained.
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <linux/limits.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include "emu.h"
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#include "gp2x.h"
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#include "usbjoy.h"
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#include "menu.h"
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#include "../common/arm_utils.h"
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#include "../common/fonts.h"
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#include "../common/emu.h"
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#include "../common/config.h"
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#include "cpuctrl.h"
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#include <Pico/PicoInt.h>
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#include <Pico/Patch.h>
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#include <Pico/sound/mix.h>
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#include <zlib/zlib.h>
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//#define PFRAMES
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#ifdef BENCHMARK
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#define OSD_FPS_X 220
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#else
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#define OSD_FPS_X 260
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#endif
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int engineState;
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int select_exits = 0;
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char romFileName[PATH_MAX];
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extern int crashed_940;
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static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
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static struct timeval noticeMsgTime = { 0, 0 }; // when started showing
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static int osd_fps_x;
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static int gp2x_old_gamma = 100;
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char noticeMsg[64]; // notice msg to draw
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unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer
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int reset_timing = 0;
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static void emu_msg_cb(const char *msg);
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static void emu_msg_tray_open(void);
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void emu_noticeMsgUpdated(void)
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{
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gettimeofday(¬iceMsgTime, 0);
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}
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void emu_getMainDir(char *dst, int len)
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{
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extern char **g_argv;
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int j;
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strncpy(dst, g_argv[0], len);
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len -= 32; // reserve
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if (len < 0) len = 0;
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dst[len] = 0;
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for (j = strlen(dst); j > 0; j--)
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if (dst[j] == '/') { dst[j+1] = 0; break; }
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}
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void emu_Init(void)
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{
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// make temp buffer for alt renderer
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PicoDraw2FB = malloc((8+320)*(8+240+8));
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if (!PicoDraw2FB)
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{
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printf("PicoDraw2FB == 0\n");
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}
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// make dirs for saves, cfgs, etc.
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mkdir("mds", 0777);
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mkdir("srm", 0777);
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mkdir("brm", 0777);
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mkdir("cfg", 0777);
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PicoInit();
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PicoMessage = emu_msg_cb;
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PicoMCDopenTray = emu_msg_tray_open;
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PicoMCDcloseTray = menu_loop_tray;
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}
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static void scaling_update(void)
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{
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PicoOpt &= ~0x4100;
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switch (currentConfig.scaling) {
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default: break; // off
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case 1: // hw hor
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case 2: PicoOpt |= 0x0100; break; // hw hor+vert
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case 3: PicoOpt |= 0x4000; break; // sw hor
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}
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}
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void emu_Deinit(void)
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{
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// save SRAM
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if((currentConfig.EmuOpt & 1) && SRam.changed) {
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emu_SaveLoadGame(0, 1);
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SRam.changed = 0;
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}
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if (!(currentConfig.EmuOpt & 0x20)) {
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config_writelrom(PicoConfigFile);
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#ifndef NO_SYNC
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sync();
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#endif
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}
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free(PicoDraw2FB);
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PicoExit();
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// restore gamma
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if (gp2x_old_gamma != 100)
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set_gamma(100, 0);
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}
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void emu_prepareDefaultConfig(void)
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{
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memset(&defaultConfig, 0, sizeof(defaultConfig));
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defaultConfig.EmuOpt = 0x1d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds
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defaultConfig.s_PicoOpt = 0x0f | 0x20e00; // | <- use_940, cd_pcm, cd_cdda, svp drc
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defaultConfig.s_PsndRate = 44100;
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defaultConfig.s_PicoRegion = 0; // auto
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defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
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defaultConfig.s_PicoCDBuffers = 64;
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defaultConfig.Frameskip = -1; // auto
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defaultConfig.CPUclock = 200;
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defaultConfig.volume = 50;
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defaultConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU
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defaultConfig.KeyBinds[ 4] = 1<<1;
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defaultConfig.KeyBinds[ 2] = 1<<2;
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defaultConfig.KeyBinds[ 6] = 1<<3;
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defaultConfig.KeyBinds[14] = 1<<4;
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defaultConfig.KeyBinds[13] = 1<<5;
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defaultConfig.KeyBinds[12] = 1<<6;
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defaultConfig.KeyBinds[ 8] = 1<<7;
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defaultConfig.KeyBinds[15] = 1<<26; // switch rend
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defaultConfig.KeyBinds[10] = 1<<27; // save state
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defaultConfig.KeyBinds[11] = 1<<28; // load state
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defaultConfig.KeyBinds[23] = 1<<29; // vol up
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defaultConfig.KeyBinds[22] = 1<<30; // vol down
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defaultConfig.gamma = 100;
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defaultConfig.scaling = 0;
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}
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void emu_setDefaultConfig(void)
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{
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memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
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PicoOpt = currentConfig.s_PicoOpt;
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PsndRate = currentConfig.s_PsndRate;
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PicoRegionOverride = currentConfig.s_PicoRegion;
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PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
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PicoCDBuffers = currentConfig.s_PicoCDBuffers;
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}
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void osd_text(int x, int y, const char *text)
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{
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int len = strlen(text)*8;
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if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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int *p, i, h;
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x &= ~3; // align x
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len = (len+3) >> 2;
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for (h = 0; h < 8; h++) {
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p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));
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for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
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}
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emu_textOut8(x, y, text);
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} else {
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int *p, i, h;
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x &= ~1; // align x
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len = (len+1) >> 1;
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for (h = 0; h < 8; h++) {
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p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));
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for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;
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}
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emu_textOut16(x, y, text);
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}
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}
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static void cd_leds(void)
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{
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// static
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int old_reg;
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// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?
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old_reg = Pico_mcd->s68k_regs[0];
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if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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// 8-bit modes
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unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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*(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =
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*(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =
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*(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;
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*(unsigned int *)((char *)gp2x_screen + 320*2+12) =
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*(unsigned int *)((char *)gp2x_screen + 320*3+12) =
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*(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;
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} else {
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// 16-bit modes
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unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);
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unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
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unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
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*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
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*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
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*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
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}
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}
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static int EmuScan16(unsigned int num, void *sdata)
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{
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if (!(Pico.video.reg[1]&8)) num += 8;
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DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);
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return 0;
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}
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static int EmuScan8(unsigned int num, void *sdata)
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{
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if (!(Pico.video.reg[1]&8)) num += 8;
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DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);
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return 0;
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}
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int localPal[0x100];
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static void (*vidCpyM2)(void *dest, void *src) = NULL;
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static void blit(const char *fps, const char *notice)
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{
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int emu_opt = currentConfig.EmuOpt;
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if (PicoOpt&0x10)
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{
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// 8bit fast renderer
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if (Pico.m.dirtyPal) {
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Pico.m.dirtyPal = 0;
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vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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// feed new palette to our device
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gp2x_video_setpalette(localPal, 0x40);
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}
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// a hack for VR
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if (PicoRead16Hook == PicoSVPRead16)
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memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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// do actual copy
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vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);
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}
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else if (!(emu_opt&0x80))
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{
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// 8bit accurate renderer
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if (Pico.m.dirtyPal) {
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Pico.m.dirtyPal = 0;
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if(Pico.video.reg[0xC]&8) { // shadow/hilight mode
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vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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memcpy32(localPal+0xc0, localPal+0x40, 0x40);
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localPal[0xc0] = 0x0000c000;
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localPal[0xd0] = 0x00c00000;
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localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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localPal[0xf0] = 0x00ffffff;
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gp2x_video_setpalette(localPal, 0x100);
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} else if (rendstatus & 0x20) { // mid-frame palette changes
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vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
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vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
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gp2x_video_setpalette(localPal, 0xc0);
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} else {
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vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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gp2x_video_setpalette(localPal, 0x40);
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}
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}
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}
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if (notice || (emu_opt & 2)) {
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int h = 232;
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if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;
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if (notice) osd_text(4, h, notice);
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if (emu_opt & 2)
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osd_text(osd_fps_x, h, fps);
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}
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if ((emu_opt & 0x400) && (PicoMCD & 1))
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cd_leds();
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//gp2x_video_wait_vsync();
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gp2x_video_flip();
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if (!(PicoOpt&0x10)) {
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if (!(Pico.video.reg[1]&8)) {
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if (currentConfig.EmuOpt&0x80) {
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DrawLineDest = (unsigned short *) gp2x_screen + 320*8;
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} else {
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DrawLineDest = (unsigned char *) gp2x_screen + 320*8;
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}
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} else {
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DrawLineDest = gp2x_screen;
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}
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}
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}
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// clears whole screen or just the notice area (in all buffers)
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static void clearArea(int full)
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{
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if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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// 8-bit renderers
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if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
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else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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} else {
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// 16bit accurate renderer
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if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);
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else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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}
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}
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static void vidResetMode(void)
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{
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if (PicoOpt&0x10) {
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gp2x_video_changemode(8);
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} else if (currentConfig.EmuOpt&0x80) {
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gp2x_video_changemode(16);
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PicoDrawSetColorFormat(1);
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PicoScan = EmuScan16;
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PicoScan(0, 0);
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} else {
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gp2x_video_changemode(8);
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PicoDrawSetColorFormat(2);
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PicoScan = EmuScan8;
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PicoScan(0, 0);
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}
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if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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// setup pal for 8-bit modes
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localPal[0xc0] = 0x0000c000; // MCD LEDs
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localPal[0xd0] = 0x00c00000;
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localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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localPal[0xf0] = 0x00ffffff;
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gp2x_video_setpalette(localPal, 0x100);
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gp2x_memset_all_buffers(0, 0xe0, 320*240);
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gp2x_video_flip();
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}
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Pico.m.dirtyPal = 1;
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// reset scaling
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if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))
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gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
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else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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}
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static void emu_msg_cb(const char *msg)
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{
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if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
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// 8-bit renderers
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gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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osd_text(4, 232, msg);
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gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);
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} else {
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// 16bit accurate renderer
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gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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osd_text(4, 232, msg);
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gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);
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}
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gettimeofday(¬iceMsgTime, 0);
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noticeMsgTime.tv_sec -= 2;
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/* assumption: emu_msg_cb gets called only when something slow is about to happen */
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reset_timing = 1;
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}
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static void emu_state_cb(const char *str)
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{
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clearArea(0);
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blit("", str);
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}
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static void emu_msg_tray_open(void)
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{
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strcpy(noticeMsg, "CD tray opened");
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gettimeofday(¬iceMsgTime, 0);
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}
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static void update_volume(int has_changed, int is_up)
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{
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static int prev_frame = 0, wait_frames = 0;
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int vol = currentConfig.volume;
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if (has_changed)
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{
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if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
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wait_frames++;
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else {
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if (is_up) {
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if (vol < 99) vol++;
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} else {
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if (vol > 0) vol--;
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}
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wait_frames = 0;
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gp2x_sound_volume(vol, vol);
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currentConfig.volume = vol;
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}
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sprintf(noticeMsg, "VOL: %02i", vol);
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gettimeofday(¬iceMsgTime, 0);
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prev_frame = Pico.m.frame_count;
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}
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// set the right mixer func
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if (!(PicoOpt&8)) return; // just use defaults for mono
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if (vol >= 5)
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PsndMix_32_to_16l = mix_32_to_16l_stereo;
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else {
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mix_32_to_16l_level = 5 - vol;
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PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
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}
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}
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static void change_fast_forward(int set_on)
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{
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static void *set_PsndOut = NULL;
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static int set_Frameskip, set_EmuOpt, is_on = 0;
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if (set_on && !is_on) {
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set_PsndOut = PsndOut;
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set_Frameskip = currentConfig.Frameskip;
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set_EmuOpt = currentConfig.EmuOpt;
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PsndOut = NULL;
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currentConfig.Frameskip = 8;
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currentConfig.EmuOpt &= ~4;
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is_on = 1;
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}
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else if (!set_on && is_on) {
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PsndOut = set_PsndOut;
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currentConfig.Frameskip = set_Frameskip;
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currentConfig.EmuOpt = set_EmuOpt;
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PsndRerate(1);
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update_volume(0, 0);
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reset_timing = 1;
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is_on = 0;
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}
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}
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static void RunEvents(unsigned int which)
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{
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if (which & 0x1800) // save or load (but not both)
|
|
{
|
|
int do_it = 1;
|
|
if ( emu_checkSaveFile(state_slot) &&
|
|
(( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
|
|
(!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save
|
|
unsigned long keys;
|
|
blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");
|
|
while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )
|
|
usleep(50*1024);
|
|
if (keys & GP2X_X) do_it = 0;
|
|
clearArea(0);
|
|
}
|
|
if (do_it) {
|
|
osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
|
|
PicoStateProgressCB = emu_state_cb;
|
|
gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);
|
|
emu_SaveLoadGame((which & 0x1000) >> 12, 0);
|
|
PicoStateProgressCB = NULL;
|
|
}
|
|
|
|
reset_timing = 1;
|
|
}
|
|
if (which & 0x0400) // switch renderer
|
|
{
|
|
if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
|
|
else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;
|
|
else currentConfig.EmuOpt &= ~0x80;
|
|
|
|
vidResetMode();
|
|
|
|
if (PicoOpt&0x10) {
|
|
strcpy(noticeMsg, " 8bit fast renderer");
|
|
} else if (currentConfig.EmuOpt&0x80) {
|
|
strcpy(noticeMsg, "16bit accurate renderer");
|
|
} else {
|
|
strcpy(noticeMsg, " 8bit accurate renderer");
|
|
}
|
|
|
|
gettimeofday(¬iceMsgTime, 0);
|
|
}
|
|
if (which & 0x0300)
|
|
{
|
|
if(which&0x0200) {
|
|
state_slot -= 1;
|
|
if(state_slot < 0) state_slot = 9;
|
|
} else {
|
|
state_slot += 1;
|
|
if(state_slot > 9) state_slot = 0;
|
|
}
|
|
sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
|
|
gettimeofday(¬iceMsgTime, 0);
|
|
}
|
|
if (which & 0x0080) {
|
|
engineState = PGS_Menu;
|
|
}
|
|
}
|
|
|
|
|
|
static void updateKeys(void)
|
|
{
|
|
unsigned long keys, allActions[2] = { 0, 0 }, events;
|
|
static unsigned long prevEvents = 0;
|
|
int joy, i;
|
|
|
|
keys = gp2x_joystick_read(0);
|
|
if (keys & GP2X_SELECT) {
|
|
engineState = select_exits ? PGS_Quit : PGS_Menu;
|
|
// wait until select is released, so menu would not resume game
|
|
while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);
|
|
}
|
|
|
|
keys &= CONFIGURABLE_KEYS;
|
|
|
|
for (i = 0; i < 32; i++)
|
|
{
|
|
if (keys & (1 << i))
|
|
{
|
|
int pl, acts = currentConfig.KeyBinds[i];
|
|
if (!acts) continue;
|
|
pl = (acts >> 16) & 1;
|
|
if (kb_combo_keys & (1 << i))
|
|
{
|
|
int u, acts_c = acts & kb_combo_acts;
|
|
// let's try to find the other one
|
|
if (acts_c) {
|
|
for (u = i + 1; u < 32; u++)
|
|
if ( (keys & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {
|
|
allActions[pl] |= acts_c & currentConfig.KeyBinds[u];
|
|
keys &= ~((1 << i) | (1 << u));
|
|
break;
|
|
}
|
|
}
|
|
// add non-combo actions if combo ones were not found
|
|
if (!acts_c || u == 32)
|
|
allActions[pl] |= acts & ~kb_combo_acts;
|
|
} else {
|
|
allActions[pl] |= acts;
|
|
}
|
|
}
|
|
}
|
|
|
|
// add joy inputs
|
|
if (num_of_joys > 0)
|
|
{
|
|
gp2x_usbjoy_update();
|
|
for (joy = 0; joy < num_of_joys; joy++) {
|
|
int keys = gp2x_usbjoy_check2(joy);
|
|
for (i = 0; i < 32; i++) {
|
|
if (keys & (1 << i)) {
|
|
int acts = currentConfig.JoyBinds[joy][i];
|
|
int pl = (acts >> 16) & 1;
|
|
allActions[pl] |= acts;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
PicoPad[0] = (unsigned short) allActions[0];
|
|
PicoPad[1] = (unsigned short) allActions[1];
|
|
|
|
events = (allActions[0] | allActions[1]) >> 16;
|
|
|
|
// volume is treated in special way and triggered every frame
|
|
if (events & 0x6000)
|
|
update_volume(1, events & 0x2000);
|
|
|
|
if ((events ^ prevEvents) & 0x40)
|
|
change_fast_forward(events & 0x40);
|
|
|
|
events &= ~prevEvents;
|
|
if (events) RunEvents(events);
|
|
if (movie_data) emu_updateMovie();
|
|
|
|
prevEvents = (allActions[0] | allActions[1]) >> 16;
|
|
}
|
|
|
|
|
|
static void updateSound(int len)
|
|
{
|
|
if (PicoOpt&8) len<<=1;
|
|
|
|
/* avoid writing audio when lagging behind to prevent audio lag */
|
|
if (PicoSkipFrame != 2)
|
|
gp2x_sound_write(PsndOut, len<<1);
|
|
}
|
|
|
|
|
|
static void SkipFrame(int do_audio)
|
|
{
|
|
PicoSkipFrame=do_audio ? 1 : 2;
|
|
PicoFrame();
|
|
PicoSkipFrame=0;
|
|
}
|
|
|
|
|
|
void emu_forcedFrame(void)
|
|
{
|
|
int po_old = PicoOpt;
|
|
int eo_old = currentConfig.EmuOpt;
|
|
|
|
PicoOpt &= ~0x0010;
|
|
PicoOpt |= 0x4080; // soft_scale | acc_sprites
|
|
currentConfig.EmuOpt |= 0x80;
|
|
|
|
//vidResetMode();
|
|
PicoDrawSetColorFormat(1);
|
|
PicoScan = EmuScan16;
|
|
PicoScan(0, 0);
|
|
Pico.m.dirtyPal = 1;
|
|
PicoFrameDrawOnly();
|
|
|
|
/*
|
|
if (!(Pico.video.reg[12]&1)) {
|
|
vidCpyM2 = vidCpyM2_32col;
|
|
clearArea(1);
|
|
} else vidCpyM2 = vidCpyM2_40col;
|
|
|
|
vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);
|
|
vidConvCpyRGB32(localPal, Pico.cram, 0x40);
|
|
gp2x_video_setpalette(localPal, 0x40);
|
|
*/
|
|
PicoOpt = po_old;
|
|
currentConfig.EmuOpt = eo_old;
|
|
}
|
|
|
|
static void simpleWait(int thissec, int lim_time)
|
|
{
|
|
struct timeval tval;
|
|
|
|
spend_cycles(1024);
|
|
gettimeofday(&tval, 0);
|
|
if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
|
|
|
|
while(tval.tv_usec < lim_time)
|
|
{
|
|
spend_cycles(1024);
|
|
gettimeofday(&tval, 0);
|
|
if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
|
|
}
|
|
}
|
|
|
|
|
|
void emu_Loop(void)
|
|
{
|
|
static int gp2x_old_clock = 200;
|
|
static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, pal_old = 0;
|
|
char fpsbuff[24]; // fps count c string
|
|
struct timeval tval; // timing
|
|
int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;
|
|
int target_fps, target_frametime, lim_time, vsync_offset, i;
|
|
char *notice = 0;
|
|
|
|
printf("entered emu_Loop()\n");
|
|
|
|
if (gp2x_old_clock != currentConfig.CPUclock) {
|
|
printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
|
|
set_FCLK(currentConfig.CPUclock);
|
|
gp2x_old_clock = currentConfig.CPUclock;
|
|
printf(" done\n");
|
|
}
|
|
|
|
if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {
|
|
set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
|
|
gp2x_old_gamma = currentConfig.gamma;
|
|
printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
|
|
}
|
|
|
|
if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {
|
|
if (currentConfig.EmuOpt&0x2000)
|
|
set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);
|
|
else unset_LCD_custom_rate();
|
|
}
|
|
|
|
EmuOpt_old = currentConfig.EmuOpt;
|
|
fpsbuff[0] = 0;
|
|
|
|
// make sure we are in correct mode
|
|
vidResetMode();
|
|
scaling_update();
|
|
Pico.m.dirtyPal = 1;
|
|
oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
|
|
emu_findKeyBindCombos();
|
|
|
|
// pal/ntsc might have changed, reset related stuff
|
|
target_fps = Pico.m.pal ? 50 : 60;
|
|
target_frametime = 1000000/target_fps;
|
|
reset_timing = 1;
|
|
|
|
// prepare sound stuff
|
|
if (currentConfig.EmuOpt & 4)
|
|
{
|
|
int snd_excess_add;
|
|
if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||
|
|
((PicoOpt&0x200) && crashed_940)) {
|
|
PsndRerate(Pico.m.frame_count ? 1 : 0);
|
|
}
|
|
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);
|
|
gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);
|
|
gp2x_sound_volume(currentConfig.volume, currentConfig.volume);
|
|
PicoWriteSound = updateSound;
|
|
update_volume(0, 0);
|
|
memset(sndBuffer, 0, sizeof(sndBuffer));
|
|
PsndOut = sndBuffer;
|
|
PsndRate_old = PsndRate;
|
|
PicoOpt_old = PicoOpt;
|
|
pal_old = Pico.m.pal;
|
|
} else {
|
|
PsndOut = NULL;
|
|
}
|
|
|
|
// prepare CD buffer
|
|
if (PicoMCD & 1) 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;
|
|
|
|
// loop?
|
|
while (engineState == PGS_Running)
|
|
{
|
|
int modes;
|
|
|
|
gettimeofday(&tval, 0);
|
|
if (reset_timing) {
|
|
reset_timing = 0;
|
|
thissec = tval.tv_sec;
|
|
frames_shown = frames_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;
|
|
}
|
|
}
|
|
|
|
// check for mode changes
|
|
modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
|
|
if (modes != oldmodes)
|
|
{
|
|
int scalex = 320;
|
|
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);
|
|
}
|
|
|
|
// 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 == 10) {
|
|
bench = 0;
|
|
bench_fps_s = bench_fps;
|
|
bf[bfp++ & 3] = bench_fps;
|
|
bench_fps = 0;
|
|
}
|
|
bench_fps += frames_shown;
|
|
sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
|
|
#else
|
|
if (currentConfig.EmuOpt & 2)
|
|
sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
|
|
if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
|
|
#endif
|
|
thissec = tval.tv_sec;
|
|
|
|
if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
|
|
frames_done = frames_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 && frames_done < target_fps && frames_done > target_fps-5) {
|
|
updateKeys();
|
|
SkipFrame(1); frames_done++;
|
|
}
|
|
|
|
frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
|
|
frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
|
|
if (frames_shown > frames_done) frames_shown = frames_done;
|
|
}
|
|
}
|
|
#ifdef PFRAMES
|
|
sprintf(fpsbuff, "%i", Pico.m.frame_count);
|
|
#endif
|
|
|
|
lim_time = (frames_done+1) * target_frametime + vsync_offset;
|
|
if(currentConfig.Frameskip >= 0) { // frameskip enabled
|
|
for(i = 0; i < currentConfig.Frameskip; i++) {
|
|
updateKeys();
|
|
SkipFrame(1); frames_done++;
|
|
if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
|
|
gettimeofday(&tval, 0);
|
|
if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
|
|
if(tval.tv_usec < lim_time) { // we are too fast
|
|
simpleWait(thissec, 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;
|
|
}
|
|
updateKeys();
|
|
SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;
|
|
continue;
|
|
}
|
|
|
|
updateKeys();
|
|
PicoFrame();
|
|
|
|
#if 0
|
|
if (Pico.m.frame_count == 31563) {
|
|
FILE *f;
|
|
f = fopen("ram_p.bin", "wb");
|
|
if (!f) { printf("!f\n"); exit(1); }
|
|
fwrite(Pico.ram, 1, 0x10000, f);
|
|
fclose(f);
|
|
exit(0);
|
|
}
|
|
#endif
|
|
#if 0
|
|
// debug
|
|
{
|
|
#define BYTE unsigned char
|
|
#define WORD unsigned short
|
|
struct
|
|
{
|
|
BYTE IDLength; /* 00h Size of Image ID field */
|
|
BYTE ColorMapType; /* 01h Color map type */
|
|
BYTE ImageType; /* 02h Image type code */
|
|
WORD CMapStart; /* 03h Color map origin */
|
|
WORD CMapLength; /* 05h Color map length */
|
|
BYTE CMapDepth; /* 07h Depth of color map entries */
|
|
WORD XOffset; /* 08h X origin of image */
|
|
WORD YOffset; /* 0Ah Y origin of image */
|
|
WORD Width; /* 0Ch Width of image */
|
|
WORD Height; /* 0Eh Height of image */
|
|
BYTE PixelDepth; /* 10h Image pixel size */
|
|
BYTE ImageDescriptor; /* 11h Image descriptor byte */
|
|
} __attribute__((packed)) TGAHEAD;
|
|
static unsigned short oldscr[320*240];
|
|
FILE *f; char name[128]; int i;
|
|
|
|
memset(&TGAHEAD, 0, sizeof(TGAHEAD));
|
|
TGAHEAD.ImageType = 2;
|
|
TGAHEAD.Width = 320;
|
|
TGAHEAD.Height = 240;
|
|
TGAHEAD.PixelDepth = 16;
|
|
TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
|
|
|
|
#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
|
|
|
|
for (i = 0; i < 320*240; i++)
|
|
if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;
|
|
if (i < 320*240)
|
|
{
|
|
for (i = 0; i < 320*240; i++)
|
|
oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);
|
|
sprintf(name, "%05i.tga", Pico.m.frame_count);
|
|
f = fopen(name, "wb");
|
|
if (!f) { printf("!f\n"); exit(1); }
|
|
fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
|
|
fwrite(oldscr, 1, 320*240*2, f);
|
|
fclose(f);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// check time
|
|
gettimeofday(&tval, 0);
|
|
if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
|
|
|
|
if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection
|
|
reset_timing = 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(thissec, lim_time - target_frametime/4);
|
|
gp2x_video_wait_vsync();
|
|
} else {
|
|
simpleWait(thissec, lim_time);
|
|
}
|
|
}
|
|
}
|
|
|
|
blit(fpsbuff, notice);
|
|
|
|
frames_done++; frames_shown++;
|
|
}
|
|
|
|
change_fast_forward(0);
|
|
|
|
if (PicoMCD & 1) PicoCDBufferFree();
|
|
|
|
// save SRAM
|
|
if((currentConfig.EmuOpt & 1) && SRam.changed) {
|
|
emu_state_cb("Writing SRAM/BRAM..");
|
|
emu_SaveLoadGame(0, 1);
|
|
SRam.changed = 0;
|
|
}
|
|
|
|
// if in 8bit mode, generate 16bit image for menu background
|
|
if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))
|
|
emu_forcedFrame();
|
|
}
|
|
|
|
|
|
void emu_ResetGame(void)
|
|
{
|
|
PicoReset(0);
|
|
reset_timing = 1;
|
|
}
|
|
|
|
|