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1 | /* |
2 | * (C) GraÅžvydas "notaz" Ignotas, 2011 |
3 | * |
4 | * This work is licensed under the terms of any of these licenses |
5 | * (at your option): |
6 | * - GNU GPL, version 2 or later. |
7 | * - GNU LGPL, version 2.1 or later. |
8 | * See the COPYING file in the top-level directory. |
9 | */ |
10 | |
11 | #include <stdint.h> |
12 | |
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13 | #ifdef __cplusplus |
14 | extern "C" { |
15 | #endif |
16 | |
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17 | #define CMD_BUFFER_LEN 1024 |
18 | |
19 | struct psx_gpu { |
20 | uint16_t vram[1024 * 512]; |
21 | uint16_t guard[1024 * 512]; // overdraw guard |
22 | uint32_t cmd_buffer[CMD_BUFFER_LEN]; |
23 | uint32_t regs[16]; |
24 | union { |
25 | uint32_t reg; |
26 | struct { |
27 | uint32_t tx:4; // 0 texture page |
28 | uint32_t ty:1; |
29 | uint32_t abr:2; |
30 | uint32_t tp:2; // 7 t.p. mode (4,8,15bpp) |
31 | uint32_t dtd:1; // 9 dither |
32 | uint32_t dfe:1; |
33 | uint32_t md:1; // 11 set mask bit when drawing |
34 | uint32_t me:1; // 12 no draw on mask |
35 | uint32_t unkn:3; |
36 | uint32_t width1:1; // 16 |
37 | uint32_t width0:2; |
38 | uint32_t dheight:1; // 19 double height |
39 | uint32_t video:1; // 20 NTSC,PAL |
40 | uint32_t rgb24:1; |
41 | uint32_t interlace:1; // 22 interlace on |
42 | uint32_t blanking:1; // 23 display not enabled |
43 | uint32_t unkn2:2; |
44 | uint32_t busy:1; // 26 !busy drawing |
45 | uint32_t img:1; // 27 ready to DMA image data |
46 | uint32_t com:1; // 28 ready for commands |
47 | uint32_t dma:2; // 29 off, ?, to vram, from vram |
48 | uint32_t lcf:1; // 31 |
49 | }; |
50 | } status; |
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51 | uint32_t gp0; |
52 | uint32_t ex_regs[8]; |
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53 | struct { |
8dd855cd |
54 | int hres, vres; |
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55 | int x, y, w, h; |
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56 | int x1, x2; |
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57 | int y1, y2; |
58 | } screen; |
59 | struct { |
60 | int x, y, w, h; |
61 | int offset; |
62 | } dma; |
63 | int cmd_len; |
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64 | uint32_t zero; |
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65 | struct { |
66 | uint32_t fb_dirty:1; |
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67 | uint32_t *frame_count; |
68 | uint32_t *hcnt; /* hsync count */ |
deb18d24 |
69 | struct { |
70 | uint32_t addr; |
71 | uint32_t words; |
72 | uint32_t frame; |
73 | uint32_t hcnt; |
74 | } last_list; |
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75 | } state; |
76 | struct { |
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77 | int32_t set:3; /* -1 auto, 0 off, 1 fixed */ |
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78 | uint32_t active:1; |
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79 | uint32_t allow:1; |
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80 | uint32_t frame_ready:1; |
81 | const int *advice; |
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82 | uint32_t last_flip_frame; |
fc84f618 |
83 | } frameskip; |
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84 | }; |
85 | |
86 | extern struct psx_gpu gpu; |
87 | |
88 | extern const unsigned char cmd_lengths[256]; |
89 | |
90 | void do_cmd_list(uint32_t *list, int count); |
91 | |
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92 | int renderer_init(void); |
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93 | void renderer_sync_ecmds(uint32_t * ecmds); |
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94 | void renderer_invalidate_caches(int x, int y, int w, int h); |
95 | void renderer_flush_queues(void); |
96 | |
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97 | int vout_init(void); |
98 | int vout_finish(void); |
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99 | |
100 | #ifdef __cplusplus |
101 | } |
102 | #endif |