2 * Copyright (C) 2011 Gilead Kutnick "Exophase" <exophase@gmail.com>
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.
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.
19 #ifndef command_lengths
20 const u8 command_lengths[256] =
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
41 void update_texture_ptr(psx_gpu_struct *psx_gpu)
46 switch((psx_gpu->render_state_base >> 8) & 0x3)
48 case TEXTURE_MODE_4BPP:
49 texture_base = psx_gpu->texture_4bpp_cache[psx_gpu->current_texture_page];
51 texture_ptr = texture_base;
52 texture_ptr += psx_gpu->texture_window_x & 0xF;
53 texture_ptr += (psx_gpu->texture_window_y & 0xF) << 4;
54 texture_ptr += (psx_gpu->texture_window_x >> 4) << 8;
55 texture_ptr += (psx_gpu->texture_window_y >> 4) << 12;
58 case TEXTURE_MODE_8BPP:
59 if(psx_gpu->current_texture_page & 0x1)
62 psx_gpu->texture_8bpp_odd_cache[psx_gpu->current_texture_page >> 1];
67 psx_gpu->texture_8bpp_even_cache[psx_gpu->current_texture_page >> 1];
70 texture_ptr = texture_base;
71 texture_ptr += psx_gpu->texture_window_x & 0xF;
72 texture_ptr += (psx_gpu->texture_window_y & 0xF) << 4;
73 texture_ptr += (psx_gpu->texture_window_x >> 4) << 8;
74 texture_ptr += (psx_gpu->texture_window_y >> 4) << 12;
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;
83 texture_ptr = texture_base;
84 texture_ptr += psx_gpu->texture_window_x * 2;
85 texture_ptr += (psx_gpu->texture_window_y) * 2048;
89 psx_gpu->texture_page_base = texture_base;
90 psx_gpu->texture_page_ptr = texture_ptr;
93 void set_texture(psx_gpu_struct *psx_gpu, u32 texture_settings)
95 texture_settings &= 0x1FF;
96 if(psx_gpu->texture_settings != texture_settings)
98 u32 new_texture_page = texture_settings & 0x1F;
99 u32 texture_mode = (texture_settings >> 7) & 0x3;
100 u32 render_state_base = psx_gpu->render_state_base;
102 flush_render_block_buffer(psx_gpu);
104 render_state_base &= ~(0xF << 6);
105 render_state_base |= ((texture_settings >> 5) & 0xF) << 6;
107 psx_gpu->render_state_base = render_state_base;
109 psx_gpu->current_texture_mask = 0x1 << new_texture_page;
111 if(texture_mode == TEXTURE_MODE_8BPP)
113 // In 8bpp mode 256x256 takes up two pages. If it's on the right edge it
114 // wraps back around to the left edge.
115 u32 adjacent_texture_page = ((texture_settings + 1) & 0xF) | (texture_settings & 0x10);
116 psx_gpu->current_texture_mask |= 0x1 << adjacent_texture_page;
118 if((psx_gpu->last_8bpp_texture_page ^ new_texture_page) & 0x1)
120 u32 dirty_textures_8bpp_alternate_mask =
121 psx_gpu->dirty_textures_8bpp_alternate_mask;
122 psx_gpu->dirty_textures_8bpp_alternate_mask =
123 psx_gpu->dirty_textures_8bpp_mask;
124 psx_gpu->dirty_textures_8bpp_mask = dirty_textures_8bpp_alternate_mask;
127 psx_gpu->last_8bpp_texture_page = new_texture_page;
130 psx_gpu->current_texture_page = new_texture_page;
131 psx_gpu->texture_settings = texture_settings;
133 update_texture_ptr(psx_gpu);
137 void set_clut(psx_gpu_struct *psx_gpu, u32 clut_settings)
139 if(psx_gpu->clut_settings != clut_settings)
141 flush_render_block_buffer(psx_gpu);
142 psx_gpu->clut_settings = clut_settings;
143 psx_gpu->clut_ptr = psx_gpu->vram_ptr + ((clut_settings & 0x7FFF) * 16);
147 void set_triangle_color(psx_gpu_struct *psx_gpu, u32 triangle_color)
149 if(psx_gpu->triangle_color != triangle_color)
151 flush_render_block_buffer(psx_gpu);
152 psx_gpu->triangle_color = triangle_color;
156 static void do_fill(psx_gpu_struct *psx_gpu, u32 x, u32 y,
157 u32 width, u32 height, u32 color)
160 width = ((width + 0xF) & ~0xF);
162 flush_render_block_buffer(psx_gpu);
164 if(unlikely((x + width) > 1024))
166 u32 width_a = 1024 - x;
167 u32 width_b = width - width_a;
169 if(unlikely((y + height) > 512))
171 u32 height_a = 512 - y;
172 u32 height_b = height - height_a;
174 render_block_fill(psx_gpu, color, x, y, width_a, height_a);
175 render_block_fill(psx_gpu, color, 0, y, width_b, height_a);
176 render_block_fill(psx_gpu, color, x, 0, width_a, height_b);
177 render_block_fill(psx_gpu, color, 0, 0, width_b, height_b);
181 render_block_fill(psx_gpu, color, x, y, width_a, height);
182 render_block_fill(psx_gpu, color, 0, y, width_b, height);
187 if(unlikely((y + height) > 512))
189 u32 height_a = 512 - y;
190 u32 height_b = height - height_a;
192 render_block_fill(psx_gpu, color, x, y, width, height_a);
193 render_block_fill(psx_gpu, color, x, 0, width, height_b);
197 render_block_fill(psx_gpu, color, x, y, width, height);
202 #define sign_extend_12bit(value) \
203 (((s32)((value) << 20)) >> 20) \
205 #define sign_extend_11bit(value) \
206 (((s32)((value) << 21)) >> 21) \
208 #define sign_extend_10bit(value) \
209 (((s32)((value) << 22)) >> 22) \
212 #define get_vertex_data_xy(vertex_number, offset16) \
213 vertexes[vertex_number].x = \
214 sign_extend_12bit(list_s16[offset16]) + psx_gpu->offset_x; \
215 vertexes[vertex_number].y = \
216 sign_extend_12bit(list_s16[(offset16) + 1]) + psx_gpu->offset_y; \
218 #define get_vertex_data_uv(vertex_number, offset16) \
219 vertexes[vertex_number].u = list_s16[offset16] & 0xFF; \
220 vertexes[vertex_number].v = (list_s16[offset16] >> 8) & 0xFF \
222 #define get_vertex_data_rgb(vertex_number, offset32) \
223 vertexes[vertex_number].r = list[offset32] & 0xFF; \
224 vertexes[vertex_number].g = (list[offset32] >> 8) & 0xFF; \
225 vertexes[vertex_number].b = (list[offset32] >> 16) & 0xFF \
227 #define get_vertex_data_xy_uv(vertex_number, offset16) \
228 get_vertex_data_xy(vertex_number, offset16); \
229 get_vertex_data_uv(vertex_number, (offset16) + 2) \
231 #define get_vertex_data_xy_rgb(vertex_number, offset16) \
232 get_vertex_data_rgb(vertex_number, (offset16) / 2); \
233 get_vertex_data_xy(vertex_number, (offset16) + 2); \
235 #define get_vertex_data_xy_uv_rgb(vertex_number, offset16) \
236 get_vertex_data_rgb(vertex_number, (offset16) / 2); \
237 get_vertex_data_xy(vertex_number, (offset16) + 2); \
238 get_vertex_data_uv(vertex_number, (offset16) + 4); \
240 #define set_vertex_color_constant(vertex_number, color) \
241 vertexes[vertex_number].r = color & 0xFF; \
242 vertexes[vertex_number].g = (color >> 8) & 0xFF; \
243 vertexes[vertex_number].b = (color >> 16) & 0xFF \
245 #define get_vertex_data_xy_rgb_constant(vertex_number, offset16, color) \
246 get_vertex_data_xy(vertex_number, offset16); \
247 set_vertex_color_constant(vertex_number, color) \
253 u32 gpu_parse(psx_gpu_struct *psx_gpu, u32 *list, u32 size, u32 *last_command)
255 vertex_struct vertexes[4] __attribute__((aligned(16))) = {};
256 u32 current_command = 0, command_length;
258 u32 *list_start = list;
259 u32 *list_end = list + (size / 4);
261 for(; list < list_end; list += 1 + command_length)
263 s16 *list_s16 = (void *)list;
264 current_command = *list >> 24;
265 command_length = command_lengths[current_command];
266 if (list + 1 + command_length > list_end) {
267 current_command = (u32)-1;
271 switch(current_command)
278 u32 x = list_s16[2] & 0x3FF;
279 u32 y = list_s16[3] & 0x1FF;
280 u32 width = list_s16[4] & 0x3FF;
281 u32 height = list_s16[5] & 0x1FF;
282 u32 color = list[0] & 0xFFFFFF;
284 do_fill(psx_gpu, x, y, width, height, color);
290 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
292 get_vertex_data_xy(0, 2);
293 get_vertex_data_xy(1, 4);
294 get_vertex_data_xy(2, 6);
296 render_triangle(psx_gpu, vertexes, current_command);
302 set_clut(psx_gpu, list_s16[5]);
303 set_texture(psx_gpu, list_s16[9]);
304 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
306 get_vertex_data_xy_uv(0, 2);
307 get_vertex_data_xy_uv(1, 6);
308 get_vertex_data_xy_uv(2, 10);
310 render_triangle(psx_gpu, vertexes, current_command);
316 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
318 get_vertex_data_xy(0, 2);
319 get_vertex_data_xy(1, 4);
320 get_vertex_data_xy(2, 6);
321 get_vertex_data_xy(3, 8);
323 render_triangle(psx_gpu, vertexes, current_command);
324 render_triangle(psx_gpu, &(vertexes[1]), current_command);
330 set_clut(psx_gpu, list_s16[5]);
331 set_texture(psx_gpu, list_s16[9]);
332 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
334 get_vertex_data_xy_uv(0, 2);
335 get_vertex_data_xy_uv(1, 6);
336 get_vertex_data_xy_uv(2, 10);
337 get_vertex_data_xy_uv(3, 14);
339 render_triangle(psx_gpu, vertexes, current_command);
340 render_triangle(psx_gpu, &(vertexes[1]), current_command);
346 get_vertex_data_xy_rgb(0, 0);
347 get_vertex_data_xy_rgb(1, 4);
348 get_vertex_data_xy_rgb(2, 8);
350 render_triangle(psx_gpu, vertexes, current_command);
359 set_clut(psx_gpu, list_s16[5]);
360 set_texture(psx_gpu, list_s16[11]);
362 get_vertex_data_xy_uv_rgb(0, 0);
363 get_vertex_data_xy_uv_rgb(1, 6);
364 get_vertex_data_xy_uv_rgb(2, 12);
366 render_triangle(psx_gpu, vertexes, current_command);
375 get_vertex_data_xy_rgb(0, 0);
376 get_vertex_data_xy_rgb(1, 4);
377 get_vertex_data_xy_rgb(2, 8);
378 get_vertex_data_xy_rgb(3, 12);
380 render_triangle(psx_gpu, vertexes, current_command);
381 render_triangle(psx_gpu, &(vertexes[1]), current_command);
390 set_clut(psx_gpu, list_s16[5]);
391 set_texture(psx_gpu, list_s16[11]);
393 get_vertex_data_xy_uv_rgb(0, 0);
394 get_vertex_data_xy_uv_rgb(1, 6);
395 get_vertex_data_xy_uv_rgb(2, 12);
396 get_vertex_data_xy_uv_rgb(3, 18);
398 render_triangle(psx_gpu, vertexes, current_command);
399 render_triangle(psx_gpu, &(vertexes[1]), current_command);
405 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
406 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
407 vertexes[1].x = list_s16[4] + psx_gpu->offset_x;
408 vertexes[1].y = list_s16[5] + psx_gpu->offset_y;
410 render_line(psx_gpu, vertexes, current_command, list[0], 0);
416 u32 num_vertexes = 1;
417 u32 *list_position = &(list[2]);
420 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
421 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
426 vertexes[0] = vertexes[1];
428 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
429 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
431 render_line(psx_gpu, vertexes, current_command, list[0], 0);
436 if(list_position >= list_end)
438 current_command = (u32)-1;
443 if((xy & 0xF000F000) == 0x50005000)
447 command_length += (num_vertexes - 2);
453 vertexes[0].r = list[0] & 0xFF;
454 vertexes[0].g = (list[0] >> 8) & 0xFF;
455 vertexes[0].b = (list[0] >> 16) & 0xFF;
456 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
457 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
459 vertexes[1].r = list[2] & 0xFF;
460 vertexes[1].g = (list[2] >> 8) & 0xFF;
461 vertexes[1].b = (list[2] >> 16) & 0xFF;
462 vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
463 vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
465 render_line(psx_gpu, vertexes, current_command, 0, 0);
471 u32 num_vertexes = 1;
472 u32 *list_position = &(list[2]);
476 vertexes[1].r = color & 0xFF;
477 vertexes[1].g = (color >> 8) & 0xFF;
478 vertexes[1].b = (color >> 16) & 0xFF;
479 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
480 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
482 color = list_position[0];
485 xy = list_position[1];
487 vertexes[0] = vertexes[1];
489 vertexes[1].r = color & 0xFF;
490 vertexes[1].g = (color >> 8) & 0xFF;
491 vertexes[1].b = (color >> 16) & 0xFF;
492 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
493 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
495 render_line(psx_gpu, vertexes, current_command, 0, 0);
500 if(list_position >= list_end)
502 current_command = (u32)-1;
506 color = list_position[0];
507 if((color & 0xF000F000) == 0x50005000)
511 command_length += ((num_vertexes - 2) * 2);
517 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
518 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
519 u32 width = list_s16[4] & 0x3FF;
520 u32 height = list_s16[5] & 0x1FF;
522 render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
528 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
529 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
530 u32 uv = list_s16[4];
531 u32 width = list_s16[6] & 0x3FF;
532 u32 height = list_s16[7] & 0x1FF;
534 set_clut(psx_gpu, list_s16[5]);
536 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, width, height,
537 current_command, list[0]);
546 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
547 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
549 render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
558 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
559 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
561 render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
570 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
571 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
572 u32 uv = list_s16[4];
574 set_clut(psx_gpu, list_s16[5]);
576 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 8, 8,
577 current_command, list[0]);
586 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
587 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
589 render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
598 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
599 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
600 u32 uv = list_s16[4];
602 set_clut(psx_gpu, list_s16[5]);
604 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 16, 16,
605 current_command, list[0]);
610 case 0x80 ... 0x9F: // vid -> vid
611 case 0xA0 ... 0xBF: // sys -> vid
612 case 0xC0 ... 0xDF: // vid -> sys
615 case 0x80 ... 0x9F: // vid -> vid
617 u32 sx = list_s16[2] & 0x3FF;
618 u32 sy = list_s16[3] & 0x1FF;
619 u32 dx = list_s16[4] & 0x3FF;
620 u32 dy = list_s16[5] & 0x1FF;
621 u32 w = ((list_s16[6] - 1) & 0x3FF) + 1;
622 u32 h = ((list_s16[7] - 1) & 0x1FF) + 1;
624 if (sx == dx && sy == dy && psx_gpu->mask_msb == 0)
627 render_block_move(psx_gpu, sx, sy, dx, dy, w, h);
631 case 0xA0 ... 0xBF: // sys -> vid
633 u32 load_x = list_s16[2] & 0x3FF;
634 u32 load_y = list_s16[3] & 0x1FF;
635 u32 load_width = list_s16[4] & 0x3FF;
636 u32 load_height = list_s16[5] & 0x1FF;
637 u32 load_size = load_width * load_height;
639 command_length += load_size / 2;
644 render_block_copy(psx_gpu, (u16 *)&(list_s16[6]), load_x, load_y,
645 load_width, load_height, load_width);
649 case 0xC0 ... 0xDF: // vid -> sys
654 set_texture(psx_gpu, list[0]);
656 if(list[0] & (1 << 9))
657 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
659 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
661 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
668 u32 texture_window_settings = list[0];
671 if(texture_window_settings != psx_gpu->texture_window_settings)
673 tmp = (texture_window_settings & 0x1F) | 0x20;
674 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
676 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
677 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
680 x = ((texture_window_settings >> 10) & tmp) << 3;
683 y = ((texture_window_settings >> 15) & tmp) << 3;
685 flush_render_block_buffer(psx_gpu);
687 psx_gpu->texture_window_settings = texture_window_settings;
688 psx_gpu->texture_window_x = x;
689 psx_gpu->texture_window_y = y;
690 psx_gpu->texture_mask_width = w - 1;
691 psx_gpu->texture_mask_height = h - 1;
693 update_texture_ptr(psx_gpu);
701 s16 viewport_start_x = list[0] & 0x3FF;
702 s16 viewport_start_y = (list[0] >> 10) & 0x1FF;
704 if(viewport_start_x == psx_gpu->viewport_start_x &&
705 viewport_start_y == psx_gpu->viewport_start_y)
710 psx_gpu->viewport_start_x = viewport_start_x;
711 psx_gpu->viewport_start_y = viewport_start_y;
713 #ifdef TEXTURE_CACHE_4BPP
714 psx_gpu->viewport_mask =
715 texture_region_mask(psx_gpu->viewport_start_x,
716 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
717 psx_gpu->viewport_end_y);
725 s16 viewport_end_x = list[0] & 0x3FF;
726 s16 viewport_end_y = (list[0] >> 10) & 0x1FF;
728 if(viewport_end_x == psx_gpu->viewport_end_x &&
729 viewport_end_y == psx_gpu->viewport_end_y)
734 psx_gpu->viewport_end_x = viewport_end_x;
735 psx_gpu->viewport_end_y = viewport_end_y;
737 #ifdef TEXTURE_CACHE_4BPP
738 psx_gpu->viewport_mask =
739 texture_region_mask(psx_gpu->viewport_start_x,
740 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
741 psx_gpu->viewport_end_y);
749 s32 offset_x = list[0] << 21;
750 s32 offset_y = list[0] << 10;
751 psx_gpu->offset_x = offset_x >> 21;
752 psx_gpu->offset_y = offset_y >> 21;
760 u32 mask_settings = list[0];
761 u16 mask_msb = mask_settings << 15;
764 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
766 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
768 if(mask_msb != psx_gpu->mask_msb)
770 flush_render_block_buffer(psx_gpu);
771 psx_gpu->mask_msb = mask_msb;
784 if (last_command != NULL)
785 *last_command = current_command;
786 return list - list_start;
791 // this thing has become such a PITA, should just handle the 2048 width really
792 static void update_enhancement_buf_scanouts(psx_gpu_struct *psx_gpu,
793 int x, int y, int w, int h)
795 int max_bufs = ARRAY_SIZE(psx_gpu->enhancement_scanouts);
796 struct psx_gpu_scanout *s;
797 int i, sel, right, bottom;
798 u32 tol_x = 48, tol_y = 16;
801 //w = (w + 15) & ~15;
802 psx_gpu->saved_hres = w;
803 assert(!(max_bufs & (max_bufs - 1)));
804 for (i = 0; i < max_bufs; i++) {
805 s = &psx_gpu->enhancement_scanouts[i];
806 if (s->x == x && s->y == y && w - s->w <= tol_x && h - s->h <= tol_y)
810 // evict any scanout that intersects
813 for (i = 0, sel = -1; i < max_bufs; i++) {
814 s = &psx_gpu->enhancement_scanouts[i];
815 if (s->x >= right) continue;
816 if (s->x + s->w <= x) continue;
817 if (s->y >= bottom) continue;
818 if (s->y + s->h <= y) continue;
819 // ... but allow upto 16 pixels intersection that some games do
820 if ((intersection = s->x + s->w - x) - 1u <= tol_x) {
821 s->w -= intersection;
824 if ((intersection = s->y + s->h - y) - 1u <= tol_y) {
825 s->h -= intersection;
828 //printf("%4d%4d%4dx%d evicted\n", s->x, s->y, s->w, s->h);
834 // 2nd intersection check
835 for (i = 0; i < max_bufs; i++) {
836 s = &psx_gpu->enhancement_scanouts[i];
839 if ((intersection = right - s->x) - 1u <= tol_x) {
843 if ((intersection = bottom - s->y) - 1u <= tol_y) {
850 sel = psx_gpu->enhancement_scanout_eselect++;
851 psx_gpu->enhancement_scanout_eselect &= max_bufs - 1;
852 s = &psx_gpu->enhancement_scanouts[sel];
858 sync_enhancement_buffers(x, y, w, h);
860 printf("scanouts:\n");
861 for (i = 0; i < ARRAY_SIZE(psx_gpu->enhancement_scanouts); i++) {
862 s = &psx_gpu->enhancement_scanouts[i];
864 printf("%4d%4d%4dx%d\n", s->x, s->y, s->w, s->h);
869 static int select_enhancement_buf_index(psx_gpu_struct *psx_gpu, s32 x, s32 y)
872 for (i = 0; i < ARRAY_SIZE(psx_gpu->enhancement_scanouts); i++) {
873 const struct psx_gpu_scanout *s = &psx_gpu->enhancement_scanouts[i];
874 if (s->x <= x && x < s->x + s->w &&
875 s->y <= y && y < s->y + s->h)
881 #define select_enhancement_buf_by_index(psx_gpu_, i_) \
882 ((psx_gpu_)->enhancement_buf_ptr + ((i_) << 20))
884 static void *select_enhancement_buf_ptr(psx_gpu_struct *psx_gpu, s32 x, s32 y)
886 int i = select_enhancement_buf_index(psx_gpu, x, y);
887 return i >= 0 ? select_enhancement_buf_by_index(psx_gpu, i) : NULL;
890 static void select_enhancement_buf(psx_gpu_struct *psx_gpu)
892 s32 x = psx_gpu->saved_viewport_start_x + 16;
893 s32 y = psx_gpu->saved_viewport_start_y + 16;
894 psx_gpu->enhancement_current_buf_ptr = select_enhancement_buf_ptr(psx_gpu, x, y);
897 #define enhancement_disable() { \
898 psx_gpu->vram_out_ptr = psx_gpu->vram_ptr; \
899 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x; \
900 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y; \
901 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x; \
902 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y; \
903 psx_gpu->uvrgb_phase = 0x8000; \
906 static int enhancement_enable(psx_gpu_struct *psx_gpu)
908 if (!psx_gpu->enhancement_current_buf_ptr)
910 psx_gpu->vram_out_ptr = psx_gpu->enhancement_current_buf_ptr;
911 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x * 2;
912 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y * 2;
913 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x * 2 + 1;
914 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y * 2 + 1;
915 if (psx_gpu->viewport_end_x - psx_gpu->viewport_start_x + 1 > 1024)
916 psx_gpu->viewport_end_x = psx_gpu->viewport_start_x + 1023;
917 psx_gpu->uvrgb_phase = 0x7fff;
921 #define shift_vertices3(v) { \
930 #define unshift_vertices3(v) { \
939 #define shift_triangle_area() \
940 psx_gpu->triangle_area *= 4
943 void scale2x_tiles8(void *dst, const void *src, int w8, int h)
945 uint16_t* d = (uint16_t*)dst;
946 const uint16_t* s = (const uint16_t*)src;
950 uint16_t* d_save = d;
951 const uint16_t* s_save = s;
1006 s = s_save + 1024; /* or 512? */
1011 static int disable_main_render;
1013 // simple check for a case where no clipping is used
1014 // - now handled by adjusting the viewport
1015 static int check_enhanced_range(psx_gpu_struct *psx_gpu, int x, int y)
1020 static int is_in_array(int val, int array[], int len)
1023 for (i = 0; i < len; i++)
1024 if (array[i] == val)
1029 static int make_members_unique(int array[], int len)
1032 for (i = j = 1; i < len; i++)
1033 if (!is_in_array(array[i], array, j))
1034 array[j++] = array[i];
1036 if (array[0] > array[1]) {
1037 i = array[0]; array[0] = array[1]; array[1] = i;
1042 static void patch_u(vertex_struct *vertex_ptrs, int count, int old, int new)
1045 for (i = 0; i < count; i++)
1046 if (vertex_ptrs[i].u == old)
1047 vertex_ptrs[i].u = new;
1050 static void patch_v(vertex_struct *vertex_ptrs, int count, int old, int new)
1053 for (i = 0; i < count; i++)
1054 if (vertex_ptrs[i].v == old)
1055 vertex_ptrs[i].v = new;
1058 static void uv_hack(vertex_struct *vertex_ptrs, int vertex_count)
1062 for (i = 0; i < vertex_count; i++) {
1063 u[i] = vertex_ptrs[i].u;
1064 v[i] = vertex_ptrs[i].v;
1066 if (make_members_unique(u, vertex_count) == 2 && u[1] - u[0] >= 8) {
1067 if ((u[0] & 7) == 7) {
1068 patch_u(vertex_ptrs, vertex_count, u[0], u[0] + 1);
1069 //printf("u hack: %3u-%3u -> %3u-%3u\n", u[0], u[1], u[0]+1, u[1]);
1071 else if ((u[1] & 7) == 0 || u[1] - u[0] > 128) {
1072 patch_u(vertex_ptrs, vertex_count, u[1], u[1] - 1);
1073 //printf("u hack: %3u-%3u -> %3u-%3u\n", u[0], u[1], u[0], u[1]-1);
1076 if (make_members_unique(v, vertex_count) == 2 && ((v[0] - v[1]) & 7) == 0) {
1077 if ((v[0] & 7) == 7) {
1078 patch_v(vertex_ptrs, vertex_count, v[0], v[0] + 1);
1079 //printf("v hack: %3u-%3u -> %3u-%3u\n", v[0], v[1], v[0]+1, v[1]);
1081 else if ((v[1] & 7) == 0) {
1082 patch_v(vertex_ptrs, vertex_count, v[1], v[1] - 1);
1083 //printf("v hack: %3u-%3u -> %3u-%3u\n", v[0], v[1], v[0], v[1]-1);
1088 static void do_triangle_enhanced(psx_gpu_struct *psx_gpu,
1089 vertex_struct *vertexes, u32 current_command)
1091 vertex_struct *vertex_ptrs[3];
1093 if (!prepare_triangle(psx_gpu, vertexes, vertex_ptrs))
1096 if (!disable_main_render)
1097 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
1099 if (!check_enhanced_range(psx_gpu, vertex_ptrs[0]->x, vertex_ptrs[2]->x))
1102 if (!enhancement_enable(psx_gpu))
1105 shift_vertices3(vertex_ptrs);
1106 shift_triangle_area();
1107 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
1108 unshift_vertices3(vertex_ptrs);
1111 static void do_quad_enhanced(psx_gpu_struct *psx_gpu, vertex_struct *vertexes,
1112 u32 current_command)
1114 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1115 enhancement_disable();
1116 do_triangle_enhanced(psx_gpu, &vertexes[1], current_command);
1121 #define fill_vertex(i, x_, y_, u_, v_, rgb_) \
1122 vertexes[i].x = x_; \
1123 vertexes[i].y = y_; \
1124 vertexes[i].u = u_; \
1125 vertexes[i].v = v_; \
1126 vertexes[i].r = rgb_; \
1127 vertexes[i].g = (rgb_) >> 8; \
1128 vertexes[i].b = (rgb_) >> 16
1130 static void do_sprite_enhanced(psx_gpu_struct *psx_gpu, int x, int y,
1131 u32 u, u32 v, u32 w, u32 h, u32 cmd_rgb)
1133 vertex_struct *vertex_ptrs[3];
1134 u32 flags = (cmd_rgb >> 24);
1135 u32 color = cmd_rgb & 0xffffff;
1136 u32 render_state_base_saved = psx_gpu->render_state_base;
1141 (RENDER_FLAGS_MODULATE_TEXELS | RENDER_FLAGS_BLEND |
1142 RENDER_FLAGS_TEXTURE_MAP);
1144 set_triangle_color(psx_gpu, color);
1145 if(color == 0x808080)
1146 flags |= RENDER_FLAGS_MODULATE_TEXELS;
1148 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
1149 enhancement_enable();
1156 if (u1 < u) u1 = 0xff;
1157 if (v1 < v) v1 = 0xff;
1162 fill_vertex(0, x, y, u, v, color);
1163 fill_vertex(1, x, y1, u, v1, color);
1164 fill_vertex(2, x1, y, u1, v, color);
1165 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
1166 shift_vertices3(vertex_ptrs);
1167 shift_triangle_area();
1168 render_triangle_p(psx_gpu, vertex_ptrs, flags);
1174 fill_vertex(0, x1, y, u1, v, color);
1175 fill_vertex(1, x, y1, u, v1, color);
1176 fill_vertex(2, x1, y1, u1, v1, color);
1177 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
1178 shift_vertices3(vertex_ptrs);
1179 shift_triangle_area();
1180 render_triangle_p(psx_gpu, vertex_ptrs, flags);
1183 psx_gpu->render_state_base = render_state_base_saved;
1186 static void do_sprite_enhanced(psx_gpu_struct *psx_gpu, int x, int y,
1187 u32 u, u32 v, u32 w, u32 h, u32 cmd_rgb)
1189 u32 flags = (cmd_rgb >> 24);
1190 u32 color = cmd_rgb & 0xffffff;
1192 render_sprite_4x(psx_gpu, x, y, u, v, w, h, flags, color);
1196 u32 gpu_parse_enhanced(psx_gpu_struct *psx_gpu, u32 *list, u32 size,
1199 vertex_struct vertexes[4] __attribute__((aligned(16))) = {};
1200 u32 current_command = 0, command_length;
1202 u32 *list_start = list;
1203 u32 *list_end = list + (size / 4);
1205 psx_gpu->saved_viewport_start_x = psx_gpu->viewport_start_x;
1206 psx_gpu->saved_viewport_start_y = psx_gpu->viewport_start_y;
1207 psx_gpu->saved_viewport_end_x = psx_gpu->viewport_end_x;
1208 psx_gpu->saved_viewport_end_y = psx_gpu->viewport_end_y;
1209 select_enhancement_buf(psx_gpu);
1211 for(; list < list_end; list += 1 + command_length)
1213 s16 *list_s16 = (void *)list;
1214 current_command = *list >> 24;
1215 command_length = command_lengths[current_command];
1216 if (list + 1 + command_length > list_end) {
1217 current_command = (u32)-1;
1221 enhancement_disable();
1223 switch(current_command)
1230 u32 x = list_s16[2] & 0x3FF;
1231 u32 y = list_s16[3] & 0x1FF;
1232 u32 width = list_s16[4] & 0x3FF;
1233 u32 height = list_s16[5] & 0x1FF;
1234 u32 color = list[0] & 0xFFFFFF;
1238 width = ((width + 0xF) & ~0xF);
1239 if (width == 0 || height == 0)
1242 do_fill(psx_gpu, x, y, width, height, color);
1244 i1 = select_enhancement_buf_index(psx_gpu, x, y);
1245 i2 = select_enhancement_buf_index(psx_gpu, x + width - 1, y + height - 1);
1246 if (i1 < 0 || i1 != i2) {
1247 sync_enhancement_buffers(x, y, width, height);
1251 psx_gpu->vram_out_ptr = select_enhancement_buf_by_index(psx_gpu, i1);
1256 render_block_fill_enh(psx_gpu, color, x, y, width, height);
1262 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1264 get_vertex_data_xy(0, 2);
1265 get_vertex_data_xy(1, 4);
1266 get_vertex_data_xy(2, 6);
1268 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1274 set_clut(psx_gpu, list_s16[5]);
1275 set_texture(psx_gpu, list_s16[9]);
1276 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1278 get_vertex_data_xy_uv(0, 2);
1279 get_vertex_data_xy_uv(1, 6);
1280 get_vertex_data_xy_uv(2, 10);
1282 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1288 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1290 get_vertex_data_xy(0, 2);
1291 get_vertex_data_xy(1, 4);
1292 get_vertex_data_xy(2, 6);
1293 get_vertex_data_xy(3, 8);
1295 do_quad_enhanced(psx_gpu, vertexes, current_command);
1301 set_clut(psx_gpu, list_s16[5]);
1302 set_texture(psx_gpu, list_s16[9]);
1303 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1305 get_vertex_data_xy_uv(0, 2);
1306 get_vertex_data_xy_uv(1, 6);
1307 get_vertex_data_xy_uv(2, 10);
1308 get_vertex_data_xy_uv(3, 14);
1310 uv_hack(vertexes, 4);
1311 do_quad_enhanced(psx_gpu, vertexes, current_command);
1317 get_vertex_data_xy_rgb(0, 0);
1318 get_vertex_data_xy_rgb(1, 4);
1319 get_vertex_data_xy_rgb(2, 8);
1321 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1330 set_clut(psx_gpu, list_s16[5]);
1331 set_texture(psx_gpu, list_s16[11]);
1333 get_vertex_data_xy_uv_rgb(0, 0);
1334 get_vertex_data_xy_uv_rgb(1, 6);
1335 get_vertex_data_xy_uv_rgb(2, 12);
1337 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1346 get_vertex_data_xy_rgb(0, 0);
1347 get_vertex_data_xy_rgb(1, 4);
1348 get_vertex_data_xy_rgb(2, 8);
1349 get_vertex_data_xy_rgb(3, 12);
1351 do_quad_enhanced(psx_gpu, vertexes, current_command);
1360 set_clut(psx_gpu, list_s16[5]);
1361 set_texture(psx_gpu, list_s16[11]);
1363 get_vertex_data_xy_uv_rgb(0, 0);
1364 get_vertex_data_xy_uv_rgb(1, 6);
1365 get_vertex_data_xy_uv_rgb(2, 12);
1366 get_vertex_data_xy_uv_rgb(3, 18);
1368 uv_hack(vertexes, 4);
1369 do_quad_enhanced(psx_gpu, vertexes, current_command);
1375 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1376 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1377 vertexes[1].x = list_s16[4] + psx_gpu->offset_x;
1378 vertexes[1].y = list_s16[5] + psx_gpu->offset_y;
1380 render_line(psx_gpu, vertexes, current_command, list[0], 0);
1381 if (enhancement_enable(psx_gpu))
1382 render_line(psx_gpu, vertexes, current_command, list[0], 1);
1388 u32 num_vertexes = 1;
1389 u32 *list_position = &(list[2]);
1392 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1393 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1395 xy = *list_position;
1398 vertexes[0] = vertexes[1];
1400 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1401 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1403 enhancement_disable();
1404 render_line(psx_gpu, vertexes, current_command, list[0], 0);
1405 if (enhancement_enable(psx_gpu))
1406 render_line(psx_gpu, vertexes, current_command, list[0], 1);
1411 if(list_position >= list_end)
1413 current_command = (u32)-1;
1417 xy = *list_position;
1418 if((xy & 0xF000F000) == 0x50005000)
1422 command_length += (num_vertexes - 2);
1428 vertexes[0].r = list[0] & 0xFF;
1429 vertexes[0].g = (list[0] >> 8) & 0xFF;
1430 vertexes[0].b = (list[0] >> 16) & 0xFF;
1431 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1432 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1434 vertexes[1].r = list[2] & 0xFF;
1435 vertexes[1].g = (list[2] >> 8) & 0xFF;
1436 vertexes[1].b = (list[2] >> 16) & 0xFF;
1437 vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
1438 vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
1440 render_line(psx_gpu, vertexes, current_command, 0, 0);
1441 if (enhancement_enable(psx_gpu))
1442 render_line(psx_gpu, vertexes, current_command, 0, 1);
1448 u32 num_vertexes = 1;
1449 u32 *list_position = &(list[2]);
1450 u32 color = list[0];
1453 vertexes[1].r = color & 0xFF;
1454 vertexes[1].g = (color >> 8) & 0xFF;
1455 vertexes[1].b = (color >> 16) & 0xFF;
1456 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1457 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1459 color = list_position[0];
1462 xy = list_position[1];
1464 vertexes[0] = vertexes[1];
1466 vertexes[1].r = color & 0xFF;
1467 vertexes[1].g = (color >> 8) & 0xFF;
1468 vertexes[1].b = (color >> 16) & 0xFF;
1469 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1470 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1472 enhancement_disable();
1473 render_line(psx_gpu, vertexes, current_command, 0, 0);
1474 if (enhancement_enable(psx_gpu))
1475 render_line(psx_gpu, vertexes, current_command, 0, 1);
1480 if(list_position >= list_end)
1482 current_command = (u32)-1;
1486 color = list_position[0];
1487 if((color & 0xF000F000) == 0x50005000)
1491 command_length += ((num_vertexes - 2) * 2);
1497 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1498 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1499 u32 width = list_s16[4] & 0x3FF;
1500 u32 height = list_s16[5] & 0x1FF;
1502 render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
1504 if (check_enhanced_range(psx_gpu, x, x + width))
1505 do_sprite_enhanced(psx_gpu, x, y, 0, 0, width, height, list[0]);
1511 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1512 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1514 u8 v = list_s16[4] >> 8;
1515 u32 width = list_s16[6] & 0x3FF;
1516 u32 height = list_s16[7] & 0x1FF;
1518 set_clut(psx_gpu, list_s16[5]);
1520 render_sprite(psx_gpu, x, y, u, v, width, height,
1521 current_command, list[0]);
1523 if (check_enhanced_range(psx_gpu, x, x + width))
1524 do_sprite_enhanced(psx_gpu, x, y, u, v, width, height, list[0]);
1533 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1534 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1536 render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
1538 if (check_enhanced_range(psx_gpu, x, x + 1))
1539 do_sprite_enhanced(psx_gpu, x, y, 0, 0, 1, 1, list[0]);
1548 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1549 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1551 render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
1553 if (check_enhanced_range(psx_gpu, x, x + 8))
1554 do_sprite_enhanced(psx_gpu, x, y, 0, 0, 8, 8, list[0]);
1563 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1564 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1566 u8 v = list_s16[4] >> 8;
1568 set_clut(psx_gpu, list_s16[5]);
1570 render_sprite(psx_gpu, x, y, u, v, 8, 8,
1571 current_command, list[0]);
1573 if (check_enhanced_range(psx_gpu, x, x + 8))
1574 do_sprite_enhanced(psx_gpu, x, y, u, v, 8, 8, list[0]);
1583 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1584 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1586 render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
1588 if (check_enhanced_range(psx_gpu, x, x + 16))
1589 do_sprite_enhanced(psx_gpu, x, y, 0, 0, 16, 16, list[0]);
1598 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1599 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1601 u8 v = list_s16[4] >> 8;
1603 set_clut(psx_gpu, list_s16[5]);
1605 render_sprite(psx_gpu, x, y, u, v, 16, 16, current_command, list[0]);
1607 if (check_enhanced_range(psx_gpu, x, x + 16))
1608 do_sprite_enhanced(psx_gpu, x, y, u, v, 16, 16, list[0]);
1612 case 0x80 ... 0x9F: // vid -> vid
1613 case 0xA0 ... 0xBF: // sys -> vid
1614 case 0xC0 ... 0xDF: // vid -> sys
1618 set_texture(psx_gpu, list[0]);
1620 if(list[0] & (1 << 9))
1621 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
1623 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
1625 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
1632 u32 texture_window_settings = list[0];
1633 u32 tmp, x, y, w, h;
1635 if(texture_window_settings != psx_gpu->texture_window_settings)
1637 tmp = (texture_window_settings & 0x1F) | 0x20;
1638 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
1640 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
1641 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
1643 tmp = 32 - (w >> 3);
1644 x = ((texture_window_settings >> 10) & tmp) << 3;
1646 tmp = 32 - (h >> 3);
1647 y = ((texture_window_settings >> 15) & tmp) << 3;
1649 flush_render_block_buffer(psx_gpu);
1651 psx_gpu->texture_window_settings = texture_window_settings;
1652 psx_gpu->texture_window_x = x;
1653 psx_gpu->texture_window_y = y;
1654 psx_gpu->texture_mask_width = w - 1;
1655 psx_gpu->texture_mask_height = h - 1;
1657 update_texture_ptr(psx_gpu);
1665 s16 viewport_start_x = list[0] & 0x3FF;
1666 s16 viewport_start_y = (list[0] >> 10) & 0x1FF;
1668 if(viewport_start_x == psx_gpu->viewport_start_x &&
1669 viewport_start_y == psx_gpu->viewport_start_y)
1673 psx_gpu->viewport_start_x = viewport_start_x;
1674 psx_gpu->viewport_start_y = viewport_start_y;
1675 psx_gpu->saved_viewport_start_x = viewport_start_x;
1676 psx_gpu->saved_viewport_start_y = viewport_start_y;
1678 select_enhancement_buf(psx_gpu);
1680 #ifdef TEXTURE_CACHE_4BPP
1681 psx_gpu->viewport_mask =
1682 texture_region_mask(psx_gpu->viewport_start_x,
1683 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1684 psx_gpu->viewport_end_y);
1692 s16 viewport_end_x = list[0] & 0x3FF;
1693 s16 viewport_end_y = (list[0] >> 10) & 0x1FF;
1695 if(viewport_end_x == psx_gpu->viewport_end_x &&
1696 viewport_end_y == psx_gpu->viewport_end_y)
1701 psx_gpu->viewport_end_x = viewport_end_x;
1702 psx_gpu->viewport_end_y = viewport_end_y;
1703 psx_gpu->saved_viewport_end_x = viewport_end_x;
1704 psx_gpu->saved_viewport_end_y = viewport_end_y;
1706 select_enhancement_buf(psx_gpu);
1708 if (!psx_gpu->enhancement_current_buf_ptr)
1709 log_anomaly("vp %3d,%3d %3d,%d - no buf\n",
1710 psx_gpu->viewport_start_x, psx_gpu->viewport_start_y,
1711 viewport_end_x, viewport_end_y);
1713 #ifdef TEXTURE_CACHE_4BPP
1714 psx_gpu->viewport_mask =
1715 texture_region_mask(psx_gpu->viewport_start_x,
1716 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1717 psx_gpu->viewport_end_y);
1725 s32 offset_x = list[0] << 21;
1726 s32 offset_y = list[0] << 10;
1727 psx_gpu->offset_x = offset_x >> 21;
1728 psx_gpu->offset_y = offset_y >> 21;
1736 u32 mask_settings = list[0];
1737 u16 mask_msb = mask_settings << 15;
1740 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
1742 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
1744 if(mask_msb != psx_gpu->mask_msb)
1746 flush_render_block_buffer(psx_gpu);
1747 psx_gpu->mask_msb = mask_msb;
1759 enhancement_disable();
1762 if (last_command != NULL)
1763 *last_command = current_command;
1764 return list - list_start;
1769 // vim:ts=2:shiftwidth=2:expandtab