Commit | Line | Data |
---|---|---|
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 | ||
530ba061 | 18 | #define MAX_SPANS 512 |
19 | #define MAX_BLOCKS 64 | |
20 | #define MAX_BLOCKS_PER_ROW 128 | |
21 | ||
22 | #define SPAN_DATA_BLOCKS_SIZE 32 | |
23 | ||
24 | #ifndef __ASSEMBLER__ | |
25 | ||
07d178b5 | 26 | #include "vector_types.h" |
27 | ||
75e28f62 E |
28 | typedef enum |
29 | { | |
30 | PRIMITIVE_TYPE_TRIANGLE = 0, | |
31 | PRIMITIVE_TYPE_SPRITE = 1, | |
32 | PRIMITIVE_TYPE_LINE = 2, | |
33 | PRIMITIVE_TYPE_UNKNOWN = 3 | |
34 | } primitive_type_enum; | |
35 | ||
36 | typedef enum | |
37 | { | |
38 | TEXTURE_MODE_4BPP = 0, | |
39 | TEXTURE_MODE_8BPP = 1, | |
40 | TEXTURE_MODE_16BPP = 2 | |
41 | } texture_mode_enum; | |
42 | ||
43 | typedef enum | |
44 | { | |
45 | BLEND_MODE_AVERAGE = 0, | |
46 | BLEND_MODE_ADD = 1, | |
47 | BLEND_MODE_SUBTRACT = 2, | |
48 | BLEND_MODE_ADD_FOURTH = 3 | |
49 | } blend_mode_enum; | |
50 | ||
51 | typedef enum | |
52 | { | |
53 | RENDER_FLAGS_MODULATE_TEXELS = 0x1, | |
54 | RENDER_FLAGS_BLEND = 0x2, | |
55 | RENDER_FLAGS_TEXTURE_MAP = 0x4, | |
56 | RENDER_FLAGS_QUAD = 0x8, | |
57 | RENDER_FLAGS_SHADE = 0x10, | |
58 | } render_flags_enum; | |
59 | ||
60 | typedef enum | |
61 | { | |
62 | RENDER_STATE_DITHER = 0x8, | |
63 | RENDER_STATE_MASK_EVALUATE = 0x20, | |
64 | } render_state_enum; | |
65 | ||
69b09c0d E |
66 | typedef enum |
67 | { | |
68 | RENDER_INTERLACE_ENABLED = 0x1, | |
f1359c57 | 69 | RENDER_INTERLACE_ODD = 0x2, |
f1359c57 | 70 | } render_mode_enum; |
69b09c0d | 71 | |
75e28f62 E |
72 | typedef struct |
73 | { | |
74 | u16 left_x; | |
75 | u16 num_blocks; | |
76 | u16 right_mask; | |
77 | u16 y; | |
78 | } edge_data_struct; | |
79 | ||
0d434261 | 80 | // 64 (72) bytes total |
75e28f62 E |
81 | typedef struct |
82 | { | |
83 | // 16 bytes | |
84 | union | |
85 | { | |
86 | vec_8x16u uv; | |
87 | vec_8x16u texels; | |
88 | vec_8x16u draw_mask; | |
89 | }; | |
90 | ||
91 | // 24 bytes | |
92 | union | |
93 | { | |
94 | struct | |
95 | { | |
96 | vec_8x8u r; | |
97 | vec_8x8u g; | |
98 | vec_8x8u b; | |
99 | }; | |
100 | ||
101 | vec_8x16u pixels; | |
102 | }; | |
103 | ||
0d434261 | 104 | // 8 (16) bytes |
75e28f62 E |
105 | u32 draw_mask_bits; |
106 | u16 *fb_ptr; | |
107 | ||
108 | // 16 bytes | |
109 | vec_8x16u dither_offsets; | |
110 | } block_struct; | |
111 | ||
75e28f62 E |
112 | typedef struct render_block_handler_struct render_block_handler_struct; |
113 | ||
114 | typedef struct | |
115 | { | |
116 | // 144 bytes | |
117 | vec_8x16u test_mask; | |
118 | ||
119 | vec_4x32u uvrg; | |
120 | vec_4x32u uvrg_dx; | |
121 | vec_4x32u uvrg_dy; | |
122 | ||
123 | vec_4x32u u_block_span; | |
124 | vec_4x32u v_block_span; | |
125 | vec_4x32u r_block_span; | |
126 | vec_4x32u g_block_span; | |
127 | vec_4x32u b_block_span; | |
128 | ||
75e28f62 E |
129 | u32 b; |
130 | u32 b_dy; | |
131 | ||
132 | u32 triangle_area; | |
133 | ||
134 | u32 texture_window_settings; | |
135 | u32 current_texture_mask; | |
136 | u32 viewport_mask; | |
137 | u32 dirty_textures_4bpp_mask; | |
138 | u32 dirty_textures_8bpp_mask; | |
139 | u32 dirty_textures_8bpp_alternate_mask; | |
140 | ||
141 | u32 triangle_color; | |
75e28f62 E |
142 | u32 dither_table[4]; |
143 | ||
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 | |
9a864a8f | 151 | u32 uvrgb_phase; |
152 | ||
75e28f62 E |
153 | u16 render_state_base; |
154 | u16 render_state; | |
155 | ||
156 | u16 num_spans; | |
157 | u16 num_blocks; | |
158 | ||
75e28f62 E |
159 | s16 viewport_start_x; |
160 | s16 viewport_start_y; | |
161 | s16 viewport_end_x; | |
162 | s16 viewport_end_y; | |
163 | ||
164 | u16 mask_msb; | |
165 | ||
75e28f62 E |
166 | u8 triangle_winding; |
167 | ||
168 | u8 display_area_draw_enable; | |
169 | ||
170 | u8 current_texture_page; | |
171 | u8 last_8bpp_texture_page; | |
172 | ||
173 | u8 texture_mask_width; | |
174 | u8 texture_mask_height; | |
175 | u8 texture_window_x; | |
176 | u8 texture_window_y; | |
177 | ||
178 | u8 primitive_type; | |
f1359c57 | 179 | u8 render_mode; |
75e28f62 | 180 | |
c6063f89 | 181 | s16 offset_x; |
182 | s16 offset_y; | |
183 | ||
184 | u16 clut_settings; | |
185 | u16 texture_settings; | |
186 | ||
ed0fd81d | 187 | u32 *reciprocal_table_ptr; |
188 | ||
c1817bd9 | 189 | // enhancement stuff |
3b7b0065 | 190 | u16 *enhancement_buf_ptr; // main alloc |
191 | u16 *enhancement_current_buf_ptr; // offset into above, 4 bufs | |
192 | u32 saved_hres; | |
c1817bd9 | 193 | s16 saved_viewport_start_x; |
194 | s16 saved_viewport_start_y; | |
195 | s16 saved_viewport_end_x; | |
196 | s16 saved_viewport_end_y; | |
9a864a8f | 197 | struct psx_gpu_scanout { |
198 | u16 x, y, w, h; | |
199 | } enhancement_scanouts[4]; // 0-3 specifying which buf to use | |
200 | u16 enhancement_scanout_eselect; // eviction selector | |
201 | u16 enhancement_current_buf; | |
c1817bd9 | 202 | |
75e28f62 | 203 | // Align up to 64 byte boundary to keep the upcoming buffers cache line |
c1817bd9 | 204 | // aligned, also make reachable with single immediate addition |
9a864a8f | 205 | u8 reserved_a[188 + 9*4 - 9*sizeof(void *)]; |
75e28f62 E |
206 | |
207 | // 8KB | |
208 | block_struct blocks[MAX_BLOCKS_PER_ROW]; | |
209 | ||
210 | // 14336 bytes | |
211 | vec_4x32u span_uvrg_offset[MAX_SPANS]; | |
212 | edge_data_struct span_edge_data[MAX_SPANS]; | |
213 | u32 span_b_offset[MAX_SPANS]; | |
214 | ||
75e28f62 E |
215 | u8 texture_4bpp_cache[32][256 * 256]; |
216 | u8 texture_8bpp_even_cache[16][256 * 256]; | |
217 | u8 texture_8bpp_odd_cache[16][256 * 256]; | |
5c1cbedc | 218 | int use_dithering; |
75e28f62 E |
219 | } psx_gpu_struct; |
220 | ||
221 | typedef struct __attribute__((aligned(16))) | |
222 | { | |
223 | u8 u; | |
224 | u8 v; | |
225 | ||
226 | u8 r; | |
227 | u8 g; | |
228 | u8 b; | |
229 | ||
230 | u8 reserved[3]; | |
231 | ||
232 | s16 x; | |
233 | s16 y; | |
07d178b5 | 234 | |
235 | u32 padding; | |
75e28f62 E |
236 | } vertex_struct; |
237 | ||
238 | void render_block_fill(psx_gpu_struct *psx_gpu, u32 color, u32 x, u32 y, | |
239 | u32 width, u32 height); | |
240 | void render_block_copy(psx_gpu_struct *psx_gpu, u16 *source, u32 x, u32 y, | |
241 | u32 width, u32 height, u32 pitch); | |
242 | void render_block_move(psx_gpu_struct *psx_gpu, u32 source_x, u32 source_y, | |
243 | u32 dest_x, u32 dest_y, u32 width, u32 height); | |
244 | ||
245 | void render_triangle(psx_gpu_struct *psx_gpu, vertex_struct *vertexes, | |
246 | u32 flags); | |
247 | void render_sprite(psx_gpu_struct *psx_gpu, s32 x, s32 y, u32 u, u32 v, | |
248 | s32 width, s32 height, u32 flags, u32 color); | |
249 | void render_line(psx_gpu_struct *gpu, vertex_struct *vertexes, u32 flags, | |
3b3dee71 | 250 | u32 color, int double_resolution); |
75e28f62 E |
251 | |
252 | u32 texture_region_mask(s32 x1, s32 y1, s32 x2, s32 y2); | |
253 | ||
2661255d | 254 | void update_texture_8bpp_cache(psx_gpu_struct *psx_gpu); |
75e28f62 E |
255 | void flush_render_block_buffer(psx_gpu_struct *psx_gpu); |
256 | ||
e8c0e0bb | 257 | void initialize_psx_gpu(psx_gpu_struct *psx_gpu, u16 *vram); |
b243416b | 258 | u32 gpu_parse(psx_gpu_struct *psx_gpu, u32 *list, u32 size, u32 *last_command); |
75e28f62 E |
259 | |
260 | void triangle_benchmark(psx_gpu_struct *psx_gpu); | |
261 | ||
07d178b5 | 262 | void compute_all_gradients(psx_gpu_struct * __restrict__ psx_gpu, |
263 | const vertex_struct * __restrict__ a, const vertex_struct * __restrict__ b, | |
264 | const vertex_struct * __restrict__ c); | |
265 | ||
530ba061 | 266 | #endif // __ASSEMBLER__ |
267 | #endif // PSX_GPU_H |