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1 | \r |
2 | #include "app.h"\r |
3 | \r |
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4 | unsigned short *EmuScreen=NULL;\r |
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5 | int EmuWidth=0,EmuHeight=0;\r |
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6 | static int EmuScan(unsigned int num, void *sdata);\r |
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7 | unsigned char *PicoDraw2FB = NULL;\r |
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8 | \r |
9 | int EmuInit()\r |
10 | {\r |
11 | int len=0;\r |
12 | \r |
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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 |
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19 | PicoDraw2FB=(unsigned char *)malloc((8+320)*(8+224+8)*2);\r |
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20 | memset(EmuScreen,0,len);\r |
21 | \r |
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22 | PicoDrawSetColorFormat(1);\r |
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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 |
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32 | free(PicoDraw2FB);\r |
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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 |
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50 | do { *pd++=0xf800;/**ps++;*/ } while (pd<end);\r |
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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 |
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69 | PsndOut=(short *)DSoundNext; PicoFrame(); PsndOut=NULL;\r |
70 | \r |
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71 | return 0;\r |
72 | }\r |
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73 | \r |
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74 | \r |
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75 | \r |
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76 | int mp3_get_offset(void) // 0-1023\r |
77 | {\r |
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78 | return 0;\r |
79 | }\r |
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80 | \r |
81 | void mp3_update(int *buffer, int length, int stereo)\r |
82 | {\r |
83 | }\r |
84 | \r |
85 | void mp3_start_play(FILE *f, int pos)\r |
86 | {\r |
87 | }\r |
88 | \r |
89 | int mp3_get_bitrate(FILE *f, int size)\r |
90 | {\r |
91 | return -1;\r |
92 | }\r |
93 | \r |