A_SN's curve

[picodrive.git] / platform / win32 / GenaDrive / Loop.cpp

#include "app.h"\r
#include "FileMenu.h"\r
\r
// sram\r
struct PicoSRAM\r
{\r
  unsigned char *data; // actual data\r
  unsigned int start;  // start address in 68k address space\r
  unsigned int end;\r
  unsigned char resize; // 1=SRAM size changed and needs to be reallocated on PicoReset\r
  unsigned char reg_back; // copy of Pico.m.sram_reg to set after reset\r
  unsigned char changed;\r
  unsigned char pad;\r
};\r
\r
extern "C" PicoSRAM SRam;\r
extern char *romname;\r
int fastForward=0;\r
int frameStep=0;\r
\r
char LoopQuit=0;\r
static FILE *DebugFile=NULL;\r
int LoopMode=0;\r
static void UpdateSound();\r
\r
int LoopInit()\r
{\r
  int ret=0;\r
\r
  // bits LSb->MSb:\r
  // enable_ym2612&dac, enable_sn76496, enable_z80, stereo_sound;\r
  // alt_renderer, 6button_gamepad, accurate_timing, accurate_sprites\r
  PicoOpt=0x1f;\r
  PsndRate=44100;\r
  //PsndLen=PsndRate/60;   // calculated later by pico itself\r
\r
  // Init Direct3D:\r
  ret=DirectInit(); if (ret) return 1;\r
  InputInit();\r
\r
  // Init DirectSound:\r
  //DSoundInit();\r
\r
  ret=EmuInit(); if (ret) return 1;\r
  FileMenu.init();\r
\r
  LoopMode=8;\r
  PicoWriteSound = UpdateSound;\r
\r
  return 0;\r
}\r
\r
void preLoopInit()\r
{\r
  romname[strlen(romname)-3] = 0;\r
  strcat(romname, "srm");\r
  int sram_size = SRam.end-SRam.start+1;\r
  if(SRam.reg_back & 4) sram_size=0x2000;\r
  FILE *f = fopen(romname, "rb");\r
  if(f && SRam.data)\r
    fread(SRam.data, 1, sram_size, f);\r
  if(f) fclose(f);\r
}\r
\r
extern "C" char *debugString();\r
\r
void LoopExit()\r
{\r
  dprintf(debugString());\r
\r
  romname[strlen(romname)-3] = 0;\r
  strcat(romname, "srm");\r
  int sram_size = SRam.end-SRam.start+1;\r
  if(SRam.reg_back & 4) sram_size=0x2000;\r
  for(; sram_size > 0; sram_size--)\r
	if(SRam.data[sram_size-1]) break;\r
  if(sram_size) {\r
    FILE *f = fopen(romname, "wb");\r
    if(f) {\r
      fwrite(SRam.data, 1, sram_size, f);\r
      fclose(f);\r
	}\r
  }\r
\r
  FileMenu.exit();\r
  EmuExit();\r
  DSoundExit(); PsndLen=0;\r
  InputExit();\r
  DirectExit();\r
\r
  if (DebugFile) fclose(DebugFile);\r
  DebugFile=NULL;\r
}\r
\r
// ----------------------------------------------------------------\r
\r
int emu_frame = 0;\r
\r
static int DoGame()\r
{\r
  if(fastForward) { PicoSkipFrame+=1; PicoSkipFrame&=7; }\r
  else PicoSkipFrame=0;\r
\r
  if(frameStep==1)      return 0;\r
  else if(frameStep==3) frameStep=1;\r
\r
  EmuFrame();\r
  emu_frame++;\r
\r
  if (Inp.held[7]==1) LoopMode=2; // Right thumb = Toggle Menu\r
\r
  return 0;\r
}\r
// ----------------------------------------------------------------\r
\r
static int MenuUpdate()\r
{\r
  int delta=0;\r
\r
  if (Inp.repeat[0]) delta-=0x100;\r
  if (Inp.repeat[1]) delta+=0x100;\r
\r
  if (Inp.button[14]>30) delta-=Inp.button[14]-30;\r
  if (Inp.button[15]>30) delta+=Inp.button[15]-30;\r
\r
  if (delta) FileMenu.scroll(delta);\r
\r
  if (Inp.held[8]==1 || Inp.held[10]==1 || Inp.held[4]==1) // A, X or Start\r
  {\r
    //RomFree();\r
    //FileMenu.getFilePath(RomName);\r
    //RomLoad();\r
    //LoopMode=8; // Go to game\r
  }\r
\r
  if (Inp.held[7]==1) LoopMode=8; // Right thumb = Toggle Menu\r
\r
  return 0;\r
}\r
\r
static int MenuRender()\r
{\r
  WCHAR text[80]={0};\r
  wsprintfW(text,L"%.40S v%x.%.3x",AppName,PicoVer>>12,PicoVer&0xfff);\r
  FontSetColour(0x60c0ff);\r
  FontText(text,64,48);\r
\r
  FileMenu.render();\r
\r
  return 0;\r
}\r
\r
// ----------------------------------------------------------------\r
\r
static int ModeUpdate()\r
{\r
  if (Inp.held[14] && Inp.held[15] && Inp.held[12]==1) LoopQuit=1; // L+R+black to quit:\r
  if (Inp.button[4]>30 && Inp.button[5]>30) LoopQuit=1; // Start and back to quit\r
\r
  if (LoopMode==8) { DoGame(); return 0; }\r
\r
  if (DSoundNext) memset(DSoundNext,0,PsndLen<<2);\r
\r
  if (LoopMode==2) { FileMenu.scan(); LoopMode++; return 0; }\r
  if (LoopMode==3) { MenuUpdate(); return 0; }\r
  if (LoopMode==4) { LightCalUpdate(); return 0; }\r
\r
  LoopMode=2; // Unknown mode, go to rom menu\r
  return 0;\r
}\r
\r
\r
static int ModeRender()\r
{\r
  DirectScreen();\r
  if (LoopMode==3) MenuRender();\r
  if (LoopMode==4) LightCalRender();\r
\r
  return 0;\r
}\r
\r
static void UpdateSound()\r
{\r
  if(fastForward) return;\r
  while (DSoundUpdate()) { Sleep(1); }\r
  while (DSoundUpdate()==0) { }\r
}\r
\r
int LoopCode()\r
{\r
\r
  // Main loop:\r
  while (!LoopQuit)\r
  {\r
    InputUpdate();\r
\r
    DirectClear(0);\r
    ModeUpdate();\r
    ModeRender();\r
    DirectPresent();\r
//      UpdateSound();\r
  }\r
\r
  return 0;\r
}\r
\r
// -------------------------------------------------------------------------------------\r
\r
extern "C" int dprintf(char *format, ...)\r
{\r
  char *name=NULL;\r
  va_list val=NULL;\r
\r
#ifdef _XBOX\r
  name="d:\\zout.txt";\r
#else\r
  name="zout.txt";\r
#endif\r
\r
  if (DebugFile==NULL) DebugFile=fopen(name,"wt");\r
  if (DebugFile==NULL) return 1;\r
\r
  fprintf(DebugFile, "%05i: ", emu_frame);\r
  va_start(val,format);\r
  vfprintf(DebugFile,format,val);\r
  fprintf(DebugFile, "\n");\r
  fflush(DebugFile);\r
\r
  va_end(val);\r
  return 0;\r
}\r
\r
extern "C" int dprintf2(char *format, ...)\r
{\r
  char str[512];\r
  va_list val=NULL;\r
\r
  va_start(val,format);\r
  vsprintf(str,format,val);\r
  va_end(val);\r
  OutputDebugString(str);\r
\r
  return 0;\r
}\r