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1 | \r |
2 | #include "app.h"\r |
3 | \r |
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4 | unsigned short *EmuScreen=NULL;\r |
5 | extern "C" unsigned short *framebuff=NULL;\r |
6 | int EmuWidth=0,EmuHeight=0;\r |
7 | static int frame=0;\r |
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 |
21 | framebuff=(unsigned short *)malloc((8+320)*(8+224+8)*2);\r |
22 | memset(EmuScreen,0,len);\r |
23 | \r |
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24 | PicoDraw2FB = (unsigned char *)framebuff;\r |
25 | PicoDrawSetColorFormat(1);\r |
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26 | PicoScan=EmuScan;\r |
27 | \r |
28 | return 0;\r |
29 | }\r |
30 | \r |
31 | void EmuExit()\r |
32 | {\r |
33 | //RomFree();\r |
34 | free(EmuScreen); EmuScreen=NULL; // Deallocate screen\r |
35 | free(framebuff);\r |
36 | EmuWidth=EmuHeight=0;\r |
37 | \r |
38 | PicoExit();\r |
39 | }\r |
40 | \r |
41 | // Megadrive scanline callback:\r |
42 | static int EmuScan(unsigned int num, void *sdata)\r |
43 | {\r |
44 | unsigned short *pd=NULL,*end=NULL;\r |
45 | unsigned short *ps=NULL;\r |
46 | \r |
47 | if (num>=(unsigned int)EmuHeight) return 0;\r |
48 | \r |
49 | // Copy scanline to screen buffer:\r |
50 | pd=EmuScreen+(num<<8)+(num<<6); end=pd+320;\r |
51 | ps=(unsigned short *)sdata;\r |
52 | \r |
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53 | do { *pd++=*ps++; } while (pd<end);\r |
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54 | \r |
55 | return 0;\r |
56 | }\r |
57 | \r |
58 | int EmuFrame()\r |
59 | {\r |
60 | char map[12]={0,1,2,3,8,9,10,4,11,12,13,14}; // Joypads, format is UDLR BCAS ZYXM\r |
61 | int a=0,input=0;\r |
62 | \r |
63 | // Set Megadrive buttons:\r |
64 | for (a=0;a<12;a++)\r |
65 | {\r |
66 | int m=map[a];\r |
67 | if (m>=0) if (Inp.button[m]>30) input|=1<<a;\r |
68 | }\r |
69 | \r |
70 | PicoPad[0]=input;\r |
71 | \r |
72 | frame++;\r |
73 | PsndOut=(short *)DSoundNext; PicoFrame(); PsndOut=NULL;\r |
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 |