| 1 | \r |
| 2 | #include "app.h"\r |
| 3 | \r |
| 4 | unsigned short *EmuScreen=NULL;\r |
| 5 | int EmuWidth=320,EmuHeight=224;\r |
| 6 | static int EmuScan(unsigned int num, void *sdata);\r |
| 7 | unsigned char *PicoDraw2FB = NULL;\r |
| 8 | \r |
| 9 | int EmuInit()\r |
| 10 | {\r |
| 11 | int len=0;\r |
| 12 | \r |
| 13 | PicoInit();\r |
| 14 | \r |
| 15 | // Allocate screen:\r |
| 16 | EmuWidth=320; EmuHeight=224;\r |
| 17 | len=EmuWidth*EmuHeight; len<<=1;\r |
| 18 | EmuScreen=(unsigned short *)malloc(len); if (EmuScreen==NULL) return 1;\r |
| 19 | PicoDraw2FB=(unsigned char *)malloc((8+320)*(8+224+8)*2);\r |
| 20 | memset(EmuScreen,0,len);\r |
| 21 | \r |
| 22 | PicoDrawSetColorFormat(1);\r |
| 23 | PicoScan=EmuScan;\r |
| 24 | \r |
| 25 | return 0;\r |
| 26 | }\r |
| 27 | \r |
| 28 | void EmuExit()\r |
| 29 | {\r |
| 30 | //RomFree();\r |
| 31 | free(EmuScreen); EmuScreen=NULL; // Deallocate screen\r |
| 32 | free(PicoDraw2FB);\r |
| 33 | EmuWidth=EmuHeight=0;\r |
| 34 | \r |
| 35 | PicoExit();\r |
| 36 | }\r |
| 37 | \r |
| 38 | // Megadrive scanline callback:\r |
| 39 | static int EmuScan(unsigned int num, void *sdata)\r |
| 40 | {\r |
| 41 | unsigned short *pd=NULL,*end=NULL;\r |
| 42 | unsigned short *ps=NULL;\r |
| 43 | \r |
| 44 | if (num>=(unsigned int)EmuHeight) return 0;\r |
| 45 | \r |
| 46 | // Copy scanline to screen buffer:\r |
| 47 | pd=EmuScreen+(num<<8)+(num<<6); end=pd+320;\r |
| 48 | ps=(unsigned short *)sdata;\r |
| 49 | \r |
| 50 | do { *pd++=*ps++; } while (pd<end);\r |
| 51 | \r |
| 52 | return 0;\r |
| 53 | }\r |
| 54 | \r |
| 55 | int EmuFrame()\r |
| 56 | {\r |
| 57 | char map[12]={0,1,2,3,8,9,10,4,11,12,13,14}; // Joypads, format is UDLR BCAS ZYXM\r |
| 58 | int a=0,input=0;\r |
| 59 | \r |
| 60 | // Set Megadrive buttons:\r |
| 61 | for (a=0;a<12;a++)\r |
| 62 | {\r |
| 63 | int m=map[a];\r |
| 64 | if (m>=0) if (Inp.button[m]>30) input|=1<<a;\r |
| 65 | }\r |
| 66 | \r |
| 67 | PicoPad[0]=input;\r |
| 68 | \r |
| 69 | PsndOut=(short *)DSoundNext;\r |
| 70 | PicoFrame();\r |
| 71 | //PsndOut=NULL;\r |
| 72 | \r |
| 73 | return 0;\r |
| 74 | }\r |
| 75 | \r |
| 76 | \r |
| 77 | \r |
| 78 | int mp3_get_offset(void) // 0-1023\r |
| 79 | {\r |
| 80 | return 0;\r |
| 81 | }\r |
| 82 | \r |
| 83 | void mp3_update(int *buffer, int length, int stereo)\r |
| 84 | {\r |
| 85 | }\r |
| 86 | \r |
| 87 | void mp3_start_play(FILE *f, int pos)\r |
| 88 | {\r |
| 89 | }\r |
| 90 | \r |
| 91 | int mp3_get_bitrate(FILE *f, int size)\r |
| 92 | {\r |
| 93 | return -1;\r |
| 94 | }\r |
| 95 | \r |