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