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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; |
05740673 |
61 | short int offset, is_read; |
62 | } dma, dma_start; |
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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 old_interlace:1; |
68 | uint32_t allow_interlace:2; |
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69 | uint32_t *frame_count; |
70 | uint32_t *hcnt; /* hsync count */ |
deb18d24 |
71 | struct { |
72 | uint32_t addr; |
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73 | uint32_t cycles; |
deb18d24 |
74 | uint32_t frame; |
75 | uint32_t hcnt; |
76 | } last_list; |
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77 | uint32_t last_vram_read_frame; |
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78 | } state; |
79 | struct { |
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80 | int32_t set:3; /* -1 auto, 0 off, 1-3 fixed */ |
81 | int32_t cnt:3; /* amount skipped in a row */ |
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82 | uint32_t active:1; |
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83 | uint32_t allow:1; |
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84 | uint32_t frame_ready:1; |
85 | const int *advice; |
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86 | uint32_t last_flip_frame; |
fc84f618 |
87 | } frameskip; |
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88 | }; |
89 | |
90 | extern struct psx_gpu gpu; |
91 | |
92 | extern const unsigned char cmd_lengths[256]; |
93 | |
94 | void do_cmd_list(uint32_t *list, int count); |
95 | |
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96 | struct rearmed_cbs; |
97 | |
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98 | int renderer_init(void); |
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99 | void renderer_sync_ecmds(uint32_t * ecmds); |
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100 | void renderer_update_caches(int x, int y, int w, int h); |
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101 | void renderer_flush_queues(void); |
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102 | void renderer_set_interlace(int enable, int is_odd); |
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103 | void renderer_set_config(const struct rearmed_cbs *config); |
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104 | |
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105 | int vout_init(void); |
106 | int vout_finish(void); |
107 | void vout_update(void); |
108 | void vout_set_config(const struct rearmed_cbs *config); |
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109 | |
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110 | /* listing these here for correct linkage if rasterizer uses c++ */ |
111 | struct GPUFreeze; |
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112 | |
113 | long GPUinit(void); |
114 | long GPUshutdown(void); |
115 | void GPUwriteDataMem(uint32_t *mem, int count); |
116 | long GPUdmaChain(uint32_t *rambase, uint32_t addr); |
117 | void GPUwriteData(uint32_t data); |
118 | void GPUreadDataMem(uint32_t *mem, int count); |
119 | uint32_t GPUreadData(void); |
120 | uint32_t GPUreadStatus(void); |
121 | void GPUwriteStatus(uint32_t data); |
122 | long GPUfreeze(uint32_t type, struct GPUFreeze *freeze); |
123 | void GPUupdateLace(void); |
124 | long GPUopen(void **dpy); |
125 | long GPUclose(void); |
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126 | void GPUvBlank(int is_vblank, int lcf); |
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127 | void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_); |
128 | |
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129 | #ifdef __cplusplus |
130 | } |
131 | #endif |