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psx_gpu: change line parsing
[pcsx_rearmed.git] / plugins / gpu_neon / psx_gpu / psx_gpu_parse.c
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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#include <stdio.h>
16
17#include "common.h"
18
19#ifndef command_lengths
20const u8 command_lengths[256] =
21{
22 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 00
23 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 10
24 3, 3, 3, 3, 6, 6, 6, 6, 4, 4, 4, 4, 8, 8, 8, 8, // 20
25 5, 5, 5, 5, 8, 8, 8, 8, 7, 7, 7, 7, 11, 11, 11, 11, // 30
26 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, // 40
27 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, // 50
28 2, 2, 2, 2, 3, 3, 3, 3, 1, 1, 1, 1, 0, 0, 0, 0, // 60
29 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, // 70
30 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 80
31 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 90
32 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // a0
33 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // b0
34 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // c0
35 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // d0
36 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // e0
37 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // f0
38};
39#endif
40
41void update_texture_ptr(psx_gpu_struct *psx_gpu)
42{
43 u8 *texture_base;
44 u8 *texture_ptr;
45
46 switch((psx_gpu->render_state_base >> 8) & 0x3)
47 {
48 default:
49 case TEXTURE_MODE_4BPP:
50 texture_base = psx_gpu->texture_4bpp_cache[psx_gpu->current_texture_page];
51
52 texture_ptr = texture_base;
53 texture_ptr += psx_gpu->texture_window_x & 0xF;
54 texture_ptr += (psx_gpu->texture_window_y & 0xF) << 4;
55 texture_ptr += (psx_gpu->texture_window_x >> 4) << 8;
56 texture_ptr += (psx_gpu->texture_window_y >> 4) << 12;
57 break;
58
59 case TEXTURE_MODE_8BPP:
60 if(psx_gpu->current_texture_page & 0x1)
61 {
62 texture_base =
63 psx_gpu->texture_8bpp_odd_cache[psx_gpu->current_texture_page >> 1];
64 }
65 else
66 {
67 texture_base =
68 psx_gpu->texture_8bpp_even_cache[psx_gpu->current_texture_page >> 1];
69 }
70
71 texture_ptr = texture_base;
72 texture_ptr += psx_gpu->texture_window_x & 0xF;
73 texture_ptr += (psx_gpu->texture_window_y & 0xF) << 4;
74 texture_ptr += (psx_gpu->texture_window_x >> 4) << 8;
75 texture_ptr += (psx_gpu->texture_window_y >> 4) << 12;
76 break;
77
78 case TEXTURE_MODE_16BPP:
79 texture_base = (u8 *)(psx_gpu->vram_ptr);
80 texture_base += (psx_gpu->current_texture_page & 0xF) * 128;
81 texture_base += ((psx_gpu->current_texture_page >> 4) * 256) * 2048;
82
83 texture_ptr = texture_base;
84 texture_ptr += psx_gpu->texture_window_x * 2;
85 texture_ptr += (psx_gpu->texture_window_y) * 2048;
86 break;
87 }
88
89 psx_gpu->texture_page_base = texture_base;
90 psx_gpu->texture_page_ptr = texture_ptr;
91}
92
93void set_texture(psx_gpu_struct *psx_gpu, u32 texture_settings)
94{
95 if(psx_gpu->texture_settings != texture_settings)
96 {
97 u32 new_texture_page = texture_settings & 0x1F;
98 u32 texture_mode = (texture_settings >> 7) & 0x3;
99 u32 render_state_base = psx_gpu->render_state_base;
100
101 flush_render_block_buffer(psx_gpu);
102
103 render_state_base &= ~(0xF << 6);
104 render_state_base |= ((texture_settings >> 5) & 0xF) << 6;
105
106 psx_gpu->render_state_base = render_state_base;
107
108 psx_gpu->current_texture_mask = 0x1 << new_texture_page;
109
110 if(texture_mode == TEXTURE_MODE_8BPP)
111 {
112 // In 8bpp mode 256x256 takes up two pages. If it's on the right edge it
113 // wraps back around to the left edge.
114 u32 adjacent_texture_page = ((texture_settings + 1) & 0xF) | (texture_settings & 0x10);
115 psx_gpu->current_texture_mask |= 0x1 << adjacent_texture_page;
116
117 if((psx_gpu->last_8bpp_texture_page ^ new_texture_page) & 0x1)
118 {
119 u32 dirty_textures_8bpp_alternate_mask =
120 psx_gpu->dirty_textures_8bpp_alternate_mask;
121 psx_gpu->dirty_textures_8bpp_alternate_mask =
122 psx_gpu->dirty_textures_8bpp_mask;
123 psx_gpu->dirty_textures_8bpp_mask = dirty_textures_8bpp_alternate_mask;
124 }
125
126 psx_gpu->last_8bpp_texture_page = new_texture_page;
127 }
128
129 psx_gpu->current_texture_page = new_texture_page;
130 psx_gpu->texture_settings = texture_settings;
131
132 update_texture_ptr(psx_gpu);
133 }
134}
135
136void set_clut(psx_gpu_struct *psx_gpu, u32 clut_settings)
137{
138 if(psx_gpu->clut_settings != clut_settings)
139 {
140 flush_render_block_buffer(psx_gpu);
141 psx_gpu->clut_settings = clut_settings;
142 psx_gpu->clut_ptr = psx_gpu->vram_ptr + ((clut_settings & 0x7FFF) * 16);
143 }
144}
145
146void set_triangle_color(psx_gpu_struct *psx_gpu, u32 triangle_color)
147{
148 if(psx_gpu->triangle_color != triangle_color)
149 {
150 flush_render_block_buffer(psx_gpu);
151 psx_gpu->triangle_color = triangle_color;
152 }
153}
154
155#define sign_extend_12bit(value) \
156 (((s32)((value) << 20)) >> 20) \
157
158#define sign_extend_11bit(value) \
159 (((s32)((value) << 21)) >> 21) \
160
161#define sign_extend_10bit(value) \
162 (((s32)((value) << 22)) >> 22) \
163
164
165#define get_vertex_data_xy(vertex_number, offset16) \
166 vertexes[vertex_number].x = \
167 sign_extend_12bit(list_s16[offset16]) + psx_gpu->offset_x; \
168 vertexes[vertex_number].y = \
169 sign_extend_12bit(list_s16[(offset16) + 1]) + psx_gpu->offset_y; \
170
171#define get_vertex_data_uv(vertex_number, offset16) \
172 vertexes[vertex_number].u = list_s16[offset16] & 0xFF; \
173 vertexes[vertex_number].v = (list_s16[offset16] >> 8) & 0xFF \
174
175#define get_vertex_data_rgb(vertex_number, offset32) \
176 vertexes[vertex_number].r = list[offset32] & 0xFF; \
177 vertexes[vertex_number].g = (list[offset32] >> 8) & 0xFF; \
178 vertexes[vertex_number].b = (list[offset32] >> 16) & 0xFF \
179
180#define get_vertex_data_xy_uv(vertex_number, offset16) \
181 get_vertex_data_xy(vertex_number, offset16); \
182 get_vertex_data_uv(vertex_number, (offset16) + 2) \
183
184#define get_vertex_data_xy_rgb(vertex_number, offset16) \
185 get_vertex_data_rgb(vertex_number, (offset16) / 2); \
186 get_vertex_data_xy(vertex_number, (offset16) + 2); \
187
188#define get_vertex_data_xy_uv_rgb(vertex_number, offset16) \
189 get_vertex_data_rgb(vertex_number, (offset16) / 2); \
190 get_vertex_data_xy(vertex_number, (offset16) + 2); \
191 get_vertex_data_uv(vertex_number, (offset16) + 4); \
192
193#define set_vertex_color_constant(vertex_number, color) \
194 vertexes[vertex_number].r = color & 0xFF; \
195 vertexes[vertex_number].g = (color >> 8) & 0xFF; \
196 vertexes[vertex_number].b = (color >> 16) & 0xFF \
197
198#define get_vertex_data_xy_rgb_constant(vertex_number, offset16, color) \
199 get_vertex_data_xy(vertex_number, offset16); \
200 set_vertex_color_constant(vertex_number, color) \
201
202#ifndef SET_Ex
203#define SET_Ex(r, v)
204#endif
205
206vertex_struct vertexes[4] __attribute__((aligned(32)));
207
208u32 gpu_parse(psx_gpu_struct *psx_gpu, u32 *list, u32 size, u32 *last_command)
209{
210 u32 current_command = 0, command_length;
211
212 u32 *list_start = list;
213 u32 *list_end = list + (size / 4);
214
215 for(; list < list_end; list += 1 + command_length)
216 {
217 s16 *list_s16 = (void *)list;
218 current_command = *list >> 24;
219 command_length = command_lengths[current_command];
220 if (list + 1 + command_length > list_end) {
221 current_command = (u32)-1;
222 break;
223 }
224
225 switch(current_command)
226 {
227 case 0x00:
228 break;
229
230 case 0x02:
231 {
232 u32 x = list_s16[2] & 0x3FF;
233 u32 y = list_s16[3] & 0x1FF;
234 u32 width = list_s16[4] & 0x3FF;
235 u32 height = list_s16[5] & 0x1FF;
236 u32 color = list[0] & 0xFFFFFF;
237
238 x &= ~0xF;
239 width = ((width + 0xF) & ~0xF);
240
241 if((x + width) > 1024)
242 {
243 u32 width_a = 1024 - x;
244 u32 width_b = width - width_a;
245
246 if((y + height) > 512)
247 {
248 u32 height_a = 512 - y;
249 u32 height_b = height - height_a;
250
251 render_block_fill(psx_gpu, color, x, y, width_a, height_a);
252 render_block_fill(psx_gpu, color, 0, y, width_b, height_a);
253 render_block_fill(psx_gpu, color, x, 0, width_a, height_b);
254 render_block_fill(psx_gpu, color, 0, 0, width_b, height_b);
255 }
256 else
257 {
258 render_block_fill(psx_gpu, color, x, y, width_a, height);
259 render_block_fill(psx_gpu, color, 0, y, width_b, height);
260 }
261 }
262 else
263 {
264 if((y + height) > 512)
265 {
266 u32 height_a = 512 - y;
267 u32 height_b = height - height_a;
268
269 render_block_fill(psx_gpu, color, x, y, width, height_a);
270 render_block_fill(psx_gpu, color, x, 0, width, height_b);
271 }
272 else
273 {
274 render_block_fill(psx_gpu, color, x, y, width, height);
275 }
276 }
277 break;
278 }
279
280 case 0x20 ... 0x23:
281 {
282 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
283
284 get_vertex_data_xy(0, 2);
285 get_vertex_data_xy(1, 4);
286 get_vertex_data_xy(2, 6);
287
288 render_triangle(psx_gpu, vertexes, current_command);
289 break;
290 }
291
292 case 0x24 ... 0x27:
293 {
294 set_clut(psx_gpu, list_s16[5]);
295 set_texture(psx_gpu, list_s16[9]);
296 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
297
298 get_vertex_data_xy_uv(0, 2);
299 get_vertex_data_xy_uv(1, 6);
300 get_vertex_data_xy_uv(2, 10);
301
302 render_triangle(psx_gpu, vertexes, current_command);
303 break;
304 }
305
306 case 0x28 ... 0x2B:
307 {
308 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
309
310 get_vertex_data_xy(0, 2);
311 get_vertex_data_xy(1, 4);
312 get_vertex_data_xy(2, 6);
313 get_vertex_data_xy(3, 8);
314
315 render_triangle(psx_gpu, vertexes, current_command);
316 render_triangle(psx_gpu, &(vertexes[1]), current_command);
317 break;
318 }
319
320 case 0x2C ... 0x2F:
321 {
322 set_clut(psx_gpu, list_s16[5]);
323 set_texture(psx_gpu, list_s16[9]);
324 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
325
326 get_vertex_data_xy_uv(0, 2);
327 get_vertex_data_xy_uv(1, 6);
328 get_vertex_data_xy_uv(2, 10);
329 get_vertex_data_xy_uv(3, 14);
330
331 render_triangle(psx_gpu, vertexes, current_command);
332 render_triangle(psx_gpu, &(vertexes[1]), current_command);
333 break;
334 }
335
336 case 0x30 ... 0x33:
337 {
338 get_vertex_data_xy_rgb(0, 0);
339 get_vertex_data_xy_rgb(1, 4);
340 get_vertex_data_xy_rgb(2, 8);
341
342 render_triangle(psx_gpu, vertexes, current_command);
343 break;
344 }
345
346 case 0x34:
347 case 0x35:
348 case 0x36:
349 case 0x37:
350 {
351 set_clut(psx_gpu, list_s16[5]);
352 set_texture(psx_gpu, list_s16[11]);
353
354 get_vertex_data_xy_uv_rgb(0, 0);
355 get_vertex_data_xy_uv_rgb(1, 6);
356 get_vertex_data_xy_uv_rgb(2, 12);
357
358 render_triangle(psx_gpu, vertexes, current_command);
359 break;
360 }
361
362 case 0x38:
363 case 0x39:
364 case 0x3A:
365 case 0x3B:
366 {
367 get_vertex_data_xy_rgb(0, 0);
368 get_vertex_data_xy_rgb(1, 4);
369 get_vertex_data_xy_rgb(2, 8);
370 get_vertex_data_xy_rgb(3, 12);
371
372 render_triangle(psx_gpu, vertexes, current_command);
373 render_triangle(psx_gpu, &(vertexes[1]), current_command);
374 break;
375 }
376
377 case 0x3C:
378 case 0x3D:
379 case 0x3E:
380 case 0x3F:
381 {
382 set_clut(psx_gpu, list_s16[5]);
383 set_texture(psx_gpu, list_s16[11]);
384
385 get_vertex_data_xy_uv_rgb(0, 0);
386 get_vertex_data_xy_uv_rgb(1, 6);
387 get_vertex_data_xy_uv_rgb(2, 12);
388 get_vertex_data_xy_uv_rgb(3, 18);
389
390 render_triangle(psx_gpu, vertexes, current_command);
391 render_triangle(psx_gpu, &(vertexes[1]), current_command);
392 break;
393 }
394
395 case 0x40 ... 0x47:
396 {
397 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
398 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
399 vertexes[1].x = list_s16[4] + psx_gpu->offset_x;
400 vertexes[1].y = list_s16[5] + psx_gpu->offset_y;
401
402 render_line(psx_gpu, vertexes, current_command, list[0]);
403 break;
404 }
405
406 case 0x48 ... 0x4F:
407 {
408 u32 num_vertexes = 1;
409 u32 *list_position = &(list[2]);
410 u32 xy = list[1];
411
412 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
413 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
414
415 xy = *list_position;
416 while(1)
417 {
418 vertexes[0] = vertexes[1];
419
420 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
421 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
422
423 render_line(psx_gpu, vertexes, current_command, list[0]);
424
425 list_position++;
426 num_vertexes++;
427
428 if(list_position >= list_end)
429 break;
430
431 xy = *list_position;
432 if((xy & 0xF000F000) == 0x50005000)
433 break;
434 }
435
436 command_length += (num_vertexes - 2);
437 break;
438 }
439
440 case 0x50 ... 0x57:
441 {
442 vertexes[0].r = list[0] & 0xFF;
443 vertexes[0].g = (list[0] >> 8) & 0xFF;
444 vertexes[0].b = (list[0] >> 16) & 0xFF;
445 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
446 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
447
448 vertexes[1].r = list[2] & 0xFF;
449 vertexes[1].g = (list[2] >> 8) & 0xFF;
450 vertexes[1].b = (list[2] >> 16) & 0xFF;
451 vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
452 vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
453
454 render_line(psx_gpu, vertexes, current_command, 0);
455 break;
456 }
457
458 case 0x58 ... 0x5F:
459 {
460 u32 num_vertexes = 1;
461 u32 *list_position = &(list[2]);
462 u32 color = list[0];
463 u32 xy = list[1];
464
465 vertexes[1].r = color & 0xFF;
466 vertexes[1].g = (color >> 8) & 0xFF;
467 vertexes[1].b = (color >> 16) & 0xFF;
468 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
469 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
470
471 color = list_position[0];
472 while(1)
473 {
474 xy = list_position[1];
475
476 vertexes[0] = vertexes[1];
477
478 vertexes[1].r = color & 0xFF;
479 vertexes[1].g = (color >> 8) & 0xFF;
480 vertexes[1].b = (color >> 16) & 0xFF;
481 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
482 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
483
484 render_line(psx_gpu, vertexes, current_command, 0);
485
486 list_position += 2;
487 num_vertexes++;
488
489 if(list_position >= list_end)
490 break;
491
492 color = list_position[0];
493 if((color & 0xF000F000) == 0x50005000)
494 break;
495 }
496
497 command_length += ((num_vertexes - 2) * 2);
498 break;
499 }
500
501 case 0x60 ... 0x63:
502 {
503 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
504 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
505 u32 width = list_s16[4] & 0x3FF;
506 u32 height = list_s16[5] & 0x1FF;
507
508 render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
509 break;
510 }
511
512 case 0x64 ... 0x67:
513 {
514 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
515 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
516 u32 uv = list_s16[4];
517 u32 width = list_s16[6] & 0x3FF;
518 u32 height = list_s16[7] & 0x1FF;
519
520 set_clut(psx_gpu, list_s16[5]);
521
522 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, width, height,
523 current_command, list[0]);
524 break;
525 }
526
527 case 0x68:
528 case 0x69:
529 case 0x6A:
530 case 0x6B:
531 {
532 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
533 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
534
535 render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
536 break;
537 }
538
539 case 0x70:
540 case 0x71:
541 case 0x72:
542 case 0x73:
543 {
544 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
545 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
546
547 render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
548 break;
549 }
550
551 case 0x74:
552 case 0x75:
553 case 0x76:
554 case 0x77:
555 {
556 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
557 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
558 u32 uv = list_s16[4];
559
560 set_clut(psx_gpu, list_s16[5]);
561
562 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 8, 8,
563 current_command, list[0]);
564 break;
565 }
566
567 case 0x78:
568 case 0x79:
569 case 0x7A:
570 case 0x7B:
571 {
572 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
573 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
574
575 render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
576 break;
577 }
578
579 case 0x7C:
580 case 0x7D:
581 case 0x7E:
582 case 0x7F:
583 {
584 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
585 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
586 u32 uv = list_s16[4];
587
588 set_clut(psx_gpu, list_s16[5]);
589
590 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 16, 16,
591 current_command, list[0]);
592 break;
593 }
594
595 case 0x80: // vid -> vid
596 render_block_move(psx_gpu, list_s16[2] & 0x3FF, list_s16[3] & 0x1FF,
597 list_s16[4] & 0x3FF, list_s16[5] & 0x1FF,
598 ((list_s16[6] - 1) & 0x3FF) + 1, ((list_s16[7] - 1) & 0x1FF) + 1);
599 break;
600
601#ifdef PCSX
602 case 0xA0: // sys -> vid
603 case 0xC0: // vid -> sys
604 goto breakloop;
605#else
606 case 0xA0: // sys -> vid
607 {
608 u32 load_x = list_s16[2] & 0x3FF;
609 u32 load_y = list_s16[3] & 0x1FF;
610 u32 load_width = list_s16[4] & 0x3FF;
611 u32 load_height = list_s16[5] & 0x1FF;
612 u32 load_size = load_width * load_height;
613
614 command_length += load_size / 2;
615
616 if(load_size & 1)
617 command_length++;
618
619 render_block_copy(psx_gpu, (u16 *)&(list_s16[6]), load_x, load_y,
620 load_width, load_height, load_width);
621 break;
622 }
623
624 case 0xC0: // vid -> sys
625 break;
626#endif
627
628 case 0xE1:
629 set_texture(psx_gpu, list[0] & 0x1FF);
630
631 if(list[0] & (1 << 9))
632 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
633 else
634 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
635
636 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
637 SET_Ex(1, list[0]);
638 break;
639
640 case 0xE2:
641 {
642 // TODO: Clean
643 u32 texture_window_settings = list[0];
644 u32 tmp, x, y, w, h;
645
646 if(texture_window_settings != psx_gpu->texture_window_settings)
647 {
648 tmp = (texture_window_settings & 0x1F) | 0x20;
649 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
650
651 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
652 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
653
654 tmp = 32 - (w >> 3);
655 x = ((texture_window_settings >> 10) & tmp) << 3;
656
657 tmp = 32 - (h >> 3);
658 y = ((texture_window_settings >> 15) & tmp) << 3;
659
660 flush_render_block_buffer(psx_gpu);
661
662 psx_gpu->texture_window_settings = texture_window_settings;
663 psx_gpu->texture_window_x = x;
664 psx_gpu->texture_window_y = y;
665 psx_gpu->texture_mask_width = w - 1;
666 psx_gpu->texture_mask_height = h - 1;
667
668 update_texture_ptr(psx_gpu);
669 }
670 SET_Ex(2, list[0]);
671 break;
672 }
673
674 case 0xE3:
675 psx_gpu->viewport_start_x = list[0] & 0x3FF;
676 psx_gpu->viewport_start_y = (list[0] >> 10) & 0x1FF;
677
678#ifdef TEXTURE_CACHE_4BPP
679 psx_gpu->viewport_mask =
680 texture_region_mask(psx_gpu->viewport_start_x,
681 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
682 psx_gpu->viewport_end_y);
683#endif
684 SET_Ex(3, list[0]);
685 break;
686
687 case 0xE4:
688 psx_gpu->viewport_end_x = list[0] & 0x3FF;
689 psx_gpu->viewport_end_y = (list[0] >> 10) & 0x1FF;
690
691#ifdef TEXTURE_CACHE_4BPP
692 psx_gpu->viewport_mask =
693 texture_region_mask(psx_gpu->viewport_start_x,
694 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
695 psx_gpu->viewport_end_y);
696#endif
697 SET_Ex(4, list[0]);
698 break;
699
700 case 0xE5:
701 {
702 s32 offset_x = list[0] << 21;
703 s32 offset_y = list[0] << 10;
704 psx_gpu->offset_x = offset_x >> 21;
705 psx_gpu->offset_y = offset_y >> 21;
706
707 SET_Ex(5, list[0]);
708 break;
709 }
710
711 case 0xE6:
712 {
713 u32 mask_settings = list[0];
714 u16 mask_msb = mask_settings << 15;
715
716 if(list[0] & 0x2)
717 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
718 else
719 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
720
721 if(mask_msb != psx_gpu->mask_msb)
722 {
723 flush_render_block_buffer(psx_gpu);
724 psx_gpu->mask_msb = mask_msb;
725 }
726
727 SET_Ex(6, list[0]);
728 break;
729 }
730
731 default:
732 break;
733 }
734 }
735
736#ifdef PCSX
737breakloop:
738#endif
739 if (last_command != NULL)
740 *last_command = current_command;
741 return list - list_start;
742}
743
ARM optimized PCSX fork