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75e28f62 E |
1 | /* |
2 | * Copyright (C) 2011 Gilead Kutnick "Exophase" <exophase@gmail.com> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License as | |
6 | * published by the Free Software Foundation; either version 2 of | |
7 | * the License, or (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | */ | |
14 | ||
15 | #ifndef PSX_GPU_H | |
16 | #define PSX_GPU_H | |
17 | ||
07d178b5 | 18 | #include "vector_types.h" |
19 | ||
75e28f62 E |
20 | typedef enum |
21 | { | |
22 | PRIMITIVE_TYPE_TRIANGLE = 0, | |
23 | PRIMITIVE_TYPE_SPRITE = 1, | |
24 | PRIMITIVE_TYPE_LINE = 2, | |
25 | PRIMITIVE_TYPE_UNKNOWN = 3 | |
26 | } primitive_type_enum; | |
27 | ||
28 | typedef enum | |
29 | { | |
30 | TEXTURE_MODE_4BPP = 0, | |
31 | TEXTURE_MODE_8BPP = 1, | |
32 | TEXTURE_MODE_16BPP = 2 | |
33 | } texture_mode_enum; | |
34 | ||
35 | typedef enum | |
36 | { | |
37 | BLEND_MODE_AVERAGE = 0, | |
38 | BLEND_MODE_ADD = 1, | |
39 | BLEND_MODE_SUBTRACT = 2, | |
40 | BLEND_MODE_ADD_FOURTH = 3 | |
41 | } blend_mode_enum; | |
42 | ||
43 | typedef enum | |
44 | { | |
45 | RENDER_FLAGS_MODULATE_TEXELS = 0x1, | |
46 | RENDER_FLAGS_BLEND = 0x2, | |
47 | RENDER_FLAGS_TEXTURE_MAP = 0x4, | |
48 | RENDER_FLAGS_QUAD = 0x8, | |
49 | RENDER_FLAGS_SHADE = 0x10, | |
50 | } render_flags_enum; | |
51 | ||
52 | typedef enum | |
53 | { | |
54 | RENDER_STATE_DITHER = 0x8, | |
55 | RENDER_STATE_MASK_EVALUATE = 0x20, | |
56 | } render_state_enum; | |
57 | ||
69b09c0d E |
58 | typedef enum |
59 | { | |
60 | RENDER_INTERLACE_ENABLED = 0x1, | |
f1359c57 | 61 | RENDER_INTERLACE_ODD = 0x2, |
f1359c57 | 62 | } render_mode_enum; |
69b09c0d | 63 | |
75e28f62 E |
64 | typedef struct |
65 | { | |
66 | u16 left_x; | |
67 | u16 num_blocks; | |
68 | u16 right_mask; | |
69 | u16 y; | |
70 | } edge_data_struct; | |
71 | ||
0d434261 | 72 | // 64 (72) bytes total |
75e28f62 E |
73 | typedef struct |
74 | { | |
75 | // 16 bytes | |
76 | union | |
77 | { | |
78 | vec_8x16u uv; | |
79 | vec_8x16u texels; | |
80 | vec_8x16u draw_mask; | |
81 | }; | |
82 | ||
83 | // 24 bytes | |
84 | union | |
85 | { | |
86 | struct | |
87 | { | |
88 | vec_8x8u r; | |
89 | vec_8x8u g; | |
90 | vec_8x8u b; | |
91 | }; | |
92 | ||
93 | vec_8x16u pixels; | |
94 | }; | |
95 | ||
0d434261 | 96 | // 8 (16) bytes |
75e28f62 E |
97 | u32 draw_mask_bits; |
98 | u16 *fb_ptr; | |
99 | ||
100 | // 16 bytes | |
101 | vec_8x16u dither_offsets; | |
102 | } block_struct; | |
103 | ||
104 | #define MAX_SPANS 512 | |
105 | #define MAX_BLOCKS 64 | |
106 | #define MAX_BLOCKS_PER_ROW 128 | |
107 | ||
108 | #define SPAN_DATA_BLOCKS_SIZE 32 | |
109 | ||
110 | typedef struct render_block_handler_struct render_block_handler_struct; | |
111 | ||
112 | typedef struct | |
113 | { | |
114 | // 144 bytes | |
115 | vec_8x16u test_mask; | |
116 | ||
117 | vec_4x32u uvrg; | |
118 | vec_4x32u uvrg_dx; | |
119 | vec_4x32u uvrg_dy; | |
120 | ||
121 | vec_4x32u u_block_span; | |
122 | vec_4x32u v_block_span; | |
123 | vec_4x32u r_block_span; | |
124 | vec_4x32u g_block_span; | |
125 | vec_4x32u b_block_span; | |
126 | ||
75e28f62 E |
127 | u32 b; |
128 | u32 b_dy; | |
129 | ||
130 | u32 triangle_area; | |
131 | ||
132 | u32 texture_window_settings; | |
133 | u32 current_texture_mask; | |
134 | u32 viewport_mask; | |
135 | u32 dirty_textures_4bpp_mask; | |
136 | u32 dirty_textures_8bpp_mask; | |
137 | u32 dirty_textures_8bpp_alternate_mask; | |
138 | ||
139 | u32 triangle_color; | |
75e28f62 E |
140 | u32 dither_table[4]; |
141 | ||
c6063f89 | 142 | u32 uvrgb_phase; |
143 | ||
75e28f62 E |
144 | struct render_block_handler_struct *render_block_handler; |
145 | void *texture_page_ptr; | |
3867c6ef | 146 | void *texture_page_base; |
75e28f62 E |
147 | u16 *clut_ptr; |
148 | u16 *vram_ptr; | |
c1817bd9 | 149 | u16 *vram_out_ptr; |
75e28f62 | 150 | |
75e28f62 E |
151 | u16 render_state_base; |
152 | u16 render_state; | |
153 | ||
154 | u16 num_spans; | |
155 | u16 num_blocks; | |
156 | ||
75e28f62 E |
157 | s16 viewport_start_x; |
158 | s16 viewport_start_y; | |
159 | s16 viewport_end_x; | |
160 | s16 viewport_end_y; | |
161 | ||
162 | u16 mask_msb; | |
163 | ||
75e28f62 E |
164 | u8 triangle_winding; |
165 | ||
166 | u8 display_area_draw_enable; | |
167 | ||
168 | u8 current_texture_page; | |
169 | u8 last_8bpp_texture_page; | |
170 | ||
171 | u8 texture_mask_width; | |
172 | u8 texture_mask_height; | |
173 | u8 texture_window_x; | |
174 | u8 texture_window_y; | |
175 | ||
176 | u8 primitive_type; | |
f1359c57 | 177 | u8 render_mode; |
75e28f62 | 178 | |
c6063f89 | 179 | s16 offset_x; |
180 | s16 offset_y; | |
181 | ||
182 | u16 clut_settings; | |
183 | u16 texture_settings; | |
184 | ||
ed0fd81d | 185 | u32 *reciprocal_table_ptr; |
186 | ||
c1817bd9 | 187 | // enhancement stuff |
188 | u16 *enhancement_buf_ptr; | |
e929dec5 | 189 | u16 *enhancement_current_buf_ptr; |
190 | u32 enhancement_x_threshold; | |
c1817bd9 | 191 | s16 saved_viewport_start_x; |
192 | s16 saved_viewport_start_y; | |
193 | s16 saved_viewport_end_x; | |
194 | s16 saved_viewport_end_y; | |
7956599f | 195 | u8 enhancement_buf_by_x16[64]; |
c1817bd9 | 196 | |
75e28f62 | 197 | // Align up to 64 byte boundary to keep the upcoming buffers cache line |
c1817bd9 | 198 | // aligned, also make reachable with single immediate addition |
ed0fd81d | 199 | u8 reserved_a[160]; |
75e28f62 E |
200 | |
201 | // 8KB | |
202 | block_struct blocks[MAX_BLOCKS_PER_ROW]; | |
203 | ||
204 | // 14336 bytes | |
205 | vec_4x32u span_uvrg_offset[MAX_SPANS]; | |
206 | edge_data_struct span_edge_data[MAX_SPANS]; | |
207 | u32 span_b_offset[MAX_SPANS]; | |
208 | ||
75e28f62 E |
209 | u8 texture_4bpp_cache[32][256 * 256]; |
210 | u8 texture_8bpp_even_cache[16][256 * 256]; | |
211 | u8 texture_8bpp_odd_cache[16][256 * 256]; | |
5c1cbedc | 212 | int use_dithering; |
75e28f62 E |
213 | } psx_gpu_struct; |
214 | ||
215 | typedef struct __attribute__((aligned(16))) | |
216 | { | |
217 | u8 u; | |
218 | u8 v; | |
219 | ||
220 | u8 r; | |
221 | u8 g; | |
222 | u8 b; | |
223 | ||
224 | u8 reserved[3]; | |
225 | ||
226 | s16 x; | |
227 | s16 y; | |
07d178b5 | 228 | |
229 | u32 padding; | |
75e28f62 E |
230 | } vertex_struct; |
231 | ||
232 | void render_block_fill(psx_gpu_struct *psx_gpu, u32 color, u32 x, u32 y, | |
233 | u32 width, u32 height); | |
234 | void render_block_copy(psx_gpu_struct *psx_gpu, u16 *source, u32 x, u32 y, | |
235 | u32 width, u32 height, u32 pitch); | |
236 | void render_block_move(psx_gpu_struct *psx_gpu, u32 source_x, u32 source_y, | |
237 | u32 dest_x, u32 dest_y, u32 width, u32 height); | |
238 | ||
239 | void render_triangle(psx_gpu_struct *psx_gpu, vertex_struct *vertexes, | |
240 | u32 flags); | |
241 | void render_sprite(psx_gpu_struct *psx_gpu, s32 x, s32 y, u32 u, u32 v, | |
242 | s32 width, s32 height, u32 flags, u32 color); | |
243 | void render_line(psx_gpu_struct *gpu, vertex_struct *vertexes, u32 flags, | |
3b3dee71 | 244 | u32 color, int double_resolution); |
75e28f62 E |
245 | |
246 | u32 texture_region_mask(s32 x1, s32 y1, s32 x2, s32 y2); | |
247 | ||
2661255d | 248 | void update_texture_8bpp_cache(psx_gpu_struct *psx_gpu); |
75e28f62 E |
249 | void flush_render_block_buffer(psx_gpu_struct *psx_gpu); |
250 | ||
e8c0e0bb | 251 | void initialize_psx_gpu(psx_gpu_struct *psx_gpu, u16 *vram); |
b243416b | 252 | u32 gpu_parse(psx_gpu_struct *psx_gpu, u32 *list, u32 size, u32 *last_command); |
75e28f62 E |
253 | |
254 | void triangle_benchmark(psx_gpu_struct *psx_gpu); | |
255 | ||
07d178b5 | 256 | void compute_all_gradients(psx_gpu_struct * __restrict__ psx_gpu, |
257 | const vertex_struct * __restrict__ a, const vertex_struct * __restrict__ b, | |
258 | const vertex_struct * __restrict__ c); | |
259 | ||
75e28f62 E |
260 | #endif |
261 |