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)
49 case TEXTURE_MODE_4BPP:
50 texture_base = psx_gpu->texture_4bpp_cache[psx_gpu->current_texture_page];
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;
59 case TEXTURE_MODE_8BPP:
60 if(psx_gpu->current_texture_page & 0x1)
63 psx_gpu->texture_8bpp_odd_cache[psx_gpu->current_texture_page >> 1];
68 psx_gpu->texture_8bpp_even_cache[psx_gpu->current_texture_page >> 1];
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;
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 vertex_struct vertexes[4] __attribute__((aligned(32)));
255 u32 gpu_parse(psx_gpu_struct *psx_gpu, u32 *list, u32 size, u32 *last_command)
257 u32 current_command = 0, command_length;
259 u32 *list_start = list;
260 u32 *list_end = list + (size / 4);
262 for(; list < list_end; list += 1 + command_length)
264 s16 *list_s16 = (void *)list;
265 current_command = *list >> 24;
266 command_length = command_lengths[current_command];
267 if (list + 1 + command_length > list_end) {
268 current_command = (u32)-1;
272 switch(current_command)
279 u32 x = list_s16[2] & 0x3FF;
280 u32 y = list_s16[3] & 0x1FF;
281 u32 width = list_s16[4] & 0x3FF;
282 u32 height = list_s16[5] & 0x1FF;
283 u32 color = list[0] & 0xFFFFFF;
285 do_fill(psx_gpu, x, y, width, height, color);
291 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
293 get_vertex_data_xy(0, 2);
294 get_vertex_data_xy(1, 4);
295 get_vertex_data_xy(2, 6);
297 render_triangle(psx_gpu, vertexes, current_command);
303 set_clut(psx_gpu, list_s16[5]);
304 set_texture(psx_gpu, list_s16[9]);
305 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
307 get_vertex_data_xy_uv(0, 2);
308 get_vertex_data_xy_uv(1, 6);
309 get_vertex_data_xy_uv(2, 10);
311 render_triangle(psx_gpu, vertexes, current_command);
317 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
319 get_vertex_data_xy(0, 2);
320 get_vertex_data_xy(1, 4);
321 get_vertex_data_xy(2, 6);
322 get_vertex_data_xy(3, 8);
324 render_triangle(psx_gpu, vertexes, current_command);
325 render_triangle(psx_gpu, &(vertexes[1]), current_command);
331 set_clut(psx_gpu, list_s16[5]);
332 set_texture(psx_gpu, list_s16[9]);
333 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
335 get_vertex_data_xy_uv(0, 2);
336 get_vertex_data_xy_uv(1, 6);
337 get_vertex_data_xy_uv(2, 10);
338 get_vertex_data_xy_uv(3, 14);
340 render_triangle(psx_gpu, vertexes, current_command);
341 render_triangle(psx_gpu, &(vertexes[1]), current_command);
347 get_vertex_data_xy_rgb(0, 0);
348 get_vertex_data_xy_rgb(1, 4);
349 get_vertex_data_xy_rgb(2, 8);
351 render_triangle(psx_gpu, vertexes, current_command);
360 set_clut(psx_gpu, list_s16[5]);
361 set_texture(psx_gpu, list_s16[11]);
363 get_vertex_data_xy_uv_rgb(0, 0);
364 get_vertex_data_xy_uv_rgb(1, 6);
365 get_vertex_data_xy_uv_rgb(2, 12);
367 render_triangle(psx_gpu, vertexes, current_command);
376 get_vertex_data_xy_rgb(0, 0);
377 get_vertex_data_xy_rgb(1, 4);
378 get_vertex_data_xy_rgb(2, 8);
379 get_vertex_data_xy_rgb(3, 12);
381 render_triangle(psx_gpu, vertexes, current_command);
382 render_triangle(psx_gpu, &(vertexes[1]), current_command);
391 set_clut(psx_gpu, list_s16[5]);
392 set_texture(psx_gpu, list_s16[11]);
394 get_vertex_data_xy_uv_rgb(0, 0);
395 get_vertex_data_xy_uv_rgb(1, 6);
396 get_vertex_data_xy_uv_rgb(2, 12);
397 get_vertex_data_xy_uv_rgb(3, 18);
399 render_triangle(psx_gpu, vertexes, current_command);
400 render_triangle(psx_gpu, &(vertexes[1]), current_command);
406 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
407 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
408 vertexes[1].x = list_s16[4] + psx_gpu->offset_x;
409 vertexes[1].y = list_s16[5] + psx_gpu->offset_y;
411 render_line(psx_gpu, vertexes, current_command, list[0], 0);
417 u32 num_vertexes = 1;
418 u32 *list_position = &(list[2]);
421 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
422 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
427 vertexes[0] = vertexes[1];
429 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
430 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
432 render_line(psx_gpu, vertexes, current_command, list[0], 0);
437 if(list_position >= list_end)
441 if((xy & 0xF000F000) == 0x50005000)
445 command_length += (num_vertexes - 2);
451 vertexes[0].r = list[0] & 0xFF;
452 vertexes[0].g = (list[0] >> 8) & 0xFF;
453 vertexes[0].b = (list[0] >> 16) & 0xFF;
454 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
455 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
457 vertexes[1].r = list[2] & 0xFF;
458 vertexes[1].g = (list[2] >> 8) & 0xFF;
459 vertexes[1].b = (list[2] >> 16) & 0xFF;
460 vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
461 vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
463 render_line(psx_gpu, vertexes, current_command, 0, 0);
469 u32 num_vertexes = 1;
470 u32 *list_position = &(list[2]);
474 vertexes[1].r = color & 0xFF;
475 vertexes[1].g = (color >> 8) & 0xFF;
476 vertexes[1].b = (color >> 16) & 0xFF;
477 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
478 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
480 color = list_position[0];
483 xy = list_position[1];
485 vertexes[0] = vertexes[1];
487 vertexes[1].r = color & 0xFF;
488 vertexes[1].g = (color >> 8) & 0xFF;
489 vertexes[1].b = (color >> 16) & 0xFF;
490 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
491 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
493 render_line(psx_gpu, vertexes, current_command, 0, 0);
498 if(list_position >= list_end)
501 color = list_position[0];
502 if((color & 0xF000F000) == 0x50005000)
506 command_length += ((num_vertexes - 2) * 2);
512 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
513 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
514 u32 width = list_s16[4] & 0x3FF;
515 u32 height = list_s16[5] & 0x1FF;
517 render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
523 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
524 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
525 u32 uv = list_s16[4];
526 u32 width = list_s16[6] & 0x3FF;
527 u32 height = list_s16[7] & 0x1FF;
529 set_clut(psx_gpu, list_s16[5]);
531 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, width, height,
532 current_command, list[0]);
541 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
542 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
544 render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
553 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
554 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
556 render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
565 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
566 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
567 u32 uv = list_s16[4];
569 set_clut(psx_gpu, list_s16[5]);
571 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 8, 8,
572 current_command, list[0]);
581 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
582 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
584 render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
593 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
594 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
595 u32 uv = list_s16[4];
597 set_clut(psx_gpu, list_s16[5]);
599 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 16, 16,
600 current_command, list[0]);
604 case 0x80: // vid -> vid
605 render_block_move(psx_gpu, list_s16[2] & 0x3FF, list_s16[3] & 0x1FF,
606 list_s16[4] & 0x3FF, list_s16[5] & 0x1FF,
607 ((list_s16[6] - 1) & 0x3FF) + 1, ((list_s16[7] - 1) & 0x1FF) + 1);
611 case 0xA0: // sys -> vid
612 case 0xC0: // vid -> sys
615 case 0xA0: // sys -> vid
617 u32 load_x = list_s16[2] & 0x3FF;
618 u32 load_y = list_s16[3] & 0x1FF;
619 u32 load_width = list_s16[4] & 0x3FF;
620 u32 load_height = list_s16[5] & 0x1FF;
621 u32 load_size = load_width * load_height;
623 command_length += load_size / 2;
628 render_block_copy(psx_gpu, (u16 *)&(list_s16[6]), load_x, load_y,
629 load_width, load_height, load_width);
633 case 0xC0: // vid -> sys
638 set_texture(psx_gpu, list[0]);
640 if(list[0] & (1 << 9))
641 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
643 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
645 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
652 u32 texture_window_settings = list[0];
655 if(texture_window_settings != psx_gpu->texture_window_settings)
657 tmp = (texture_window_settings & 0x1F) | 0x20;
658 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
660 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
661 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
664 x = ((texture_window_settings >> 10) & tmp) << 3;
667 y = ((texture_window_settings >> 15) & tmp) << 3;
669 flush_render_block_buffer(psx_gpu);
671 psx_gpu->texture_window_settings = texture_window_settings;
672 psx_gpu->texture_window_x = x;
673 psx_gpu->texture_window_y = y;
674 psx_gpu->texture_mask_width = w - 1;
675 psx_gpu->texture_mask_height = h - 1;
677 update_texture_ptr(psx_gpu);
684 psx_gpu->viewport_start_x = list[0] & 0x3FF;
685 psx_gpu->viewport_start_y = (list[0] >> 10) & 0x1FF;
687 #ifdef TEXTURE_CACHE_4BPP
688 psx_gpu->viewport_mask =
689 texture_region_mask(psx_gpu->viewport_start_x,
690 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
691 psx_gpu->viewport_end_y);
697 psx_gpu->viewport_end_x = list[0] & 0x3FF;
698 psx_gpu->viewport_end_y = (list[0] >> 10) & 0x1FF;
700 #ifdef TEXTURE_CACHE_4BPP
701 psx_gpu->viewport_mask =
702 texture_region_mask(psx_gpu->viewport_start_x,
703 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
704 psx_gpu->viewport_end_y);
711 s32 offset_x = list[0] << 21;
712 s32 offset_y = list[0] << 10;
713 psx_gpu->offset_x = offset_x >> 21;
714 psx_gpu->offset_y = offset_y >> 21;
722 u32 mask_settings = list[0];
723 u16 mask_msb = mask_settings << 15;
726 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
728 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
730 if(mask_msb != psx_gpu->mask_msb)
732 flush_render_block_buffer(psx_gpu);
733 psx_gpu->mask_msb = mask_msb;
748 if (last_command != NULL)
749 *last_command = current_command;
750 return list - list_start;
753 #define select_enhancement_buf(psx_gpu) { \
755 _x = psx_gpu->saved_viewport_start_x + 8; \
756 for (_b = 0; _x >= psx_gpu->enhancement_x_threshold; _b++) \
757 _x -= psx_gpu->enhancement_x_threshold; \
758 psx_gpu->enhancement_current_buf_ptr = \
759 psx_gpu->enhancement_buf_ptr + _b * 1024 * 1024; \
762 #define enhancement_disable() { \
763 psx_gpu->vram_out_ptr = psx_gpu->vram_ptr; \
764 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x; \
765 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y; \
766 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x; \
767 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y; \
768 psx_gpu->uvrgb_phase = 0x8000; \
771 #define enhancement_enable() { \
772 psx_gpu->vram_out_ptr = psx_gpu->enhancement_current_buf_ptr; \
773 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x * 2; \
774 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y * 2; \
775 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x * 2; \
776 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y * 2; \
777 psx_gpu->uvrgb_phase = 0x1000; \
780 #define shift_vertices3(v) { \
789 #define unshift_vertices3(v) { \
798 #define shift_triangle_area() \
799 psx_gpu->triangle_area *= 4
801 static int disable_main_render;
803 static void do_triangle_enhanced(psx_gpu_struct *psx_gpu,
804 vertex_struct *vertexes, u32 current_command)
806 vertex_struct *vertex_ptrs[3];
808 if (!prepare_triangle(psx_gpu, vertexes, vertex_ptrs))
811 if (!disable_main_render)
812 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
814 enhancement_enable();
815 shift_vertices3(vertex_ptrs);
816 shift_triangle_area();
817 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
820 static void do_quad_enhanced(psx_gpu_struct *psx_gpu, vertex_struct *vertexes,
823 vertex_struct *vertex_ptrs[3];
825 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
826 if (!disable_main_render)
827 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
829 enhancement_enable();
830 shift_vertices3(vertex_ptrs);
831 shift_triangle_area();
832 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
833 unshift_vertices3(vertex_ptrs);
835 enhancement_disable();
836 if (prepare_triangle(psx_gpu, &vertexes[1], vertex_ptrs)) {
837 if (!disable_main_render)
838 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
840 enhancement_enable();
841 shift_vertices3(vertex_ptrs);
842 shift_triangle_area();
843 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
847 #define fill_vertex(i, x_, y_, u_, v_, rgb_) \
848 vertexes[i].x = x_; \
849 vertexes[i].y = y_; \
850 vertexes[i].u = u_; \
851 vertexes[i].v = v_; \
852 vertexes[i].r = rgb_; \
853 vertexes[i].g = (rgb_) >> 8; \
854 vertexes[i].b = (rgb_) >> 16
856 static void do_esprite_in_triangles(psx_gpu_struct *psx_gpu, int x, int y,
857 u32 u, u32 v, u32 w, u32 h, u32 cmd_rgb)
859 vertex_struct *vertex_ptrs[3];
860 u32 flags = (cmd_rgb >> 24);
861 u32 color = cmd_rgb & 0xffffff;
862 u32 render_state_base_saved = psx_gpu->render_state_base;
867 (RENDER_FLAGS_MODULATE_TEXELS | RENDER_FLAGS_BLEND |
868 RENDER_FLAGS_TEXTURE_MAP);
870 set_triangle_color(psx_gpu, color);
871 if(color == 0x808080)
872 flags |= RENDER_FLAGS_MODULATE_TEXELS;
874 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
875 enhancement_enable();
882 if (u1 < u) u1 = 0xff;
883 if (v1 < v) v1 = 0xff;
888 fill_vertex(0, x, y, u, v, color);
889 fill_vertex(1, x, y1, u, v1, color);
890 fill_vertex(2, x1, y, u1, v, color);
891 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
892 shift_vertices3(vertex_ptrs);
893 shift_triangle_area();
894 render_triangle_p(psx_gpu, vertex_ptrs, flags);
900 fill_vertex(0, x1, y, u1, v, color);
901 fill_vertex(1, x, y1, u, v1, color);
902 fill_vertex(2, x1, y1, u1, v1, color);
903 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
904 shift_vertices3(vertex_ptrs);
905 shift_triangle_area();
906 render_triangle_p(psx_gpu, vertex_ptrs, flags);
909 psx_gpu->render_state_base = render_state_base_saved;
912 u32 gpu_parse_enhanced(psx_gpu_struct *psx_gpu, u32 *list, u32 size, u32 *last_command)
914 u32 current_command = 0, command_length;
916 u32 *list_start = list;
917 u32 *list_end = list + (size / 4);
919 psx_gpu->saved_viewport_start_x = psx_gpu->viewport_start_x;
920 psx_gpu->saved_viewport_start_y = psx_gpu->viewport_start_y;
921 psx_gpu->saved_viewport_end_x = psx_gpu->viewport_end_x;
922 psx_gpu->saved_viewport_end_y = psx_gpu->viewport_end_y;
923 select_enhancement_buf(psx_gpu);
925 for(; list < list_end; list += 1 + command_length)
927 s16 *list_s16 = (void *)list;
928 current_command = *list >> 24;
929 command_length = command_lengths[current_command];
930 if (list + 1 + command_length > list_end) {
931 current_command = (u32)-1;
935 enhancement_disable();
937 switch(current_command)
944 u32 x = list_s16[2] & 0x3FF;
945 u32 y = list_s16[3] & 0x1FF;
946 u32 width = list_s16[4] & 0x3FF;
947 u32 height = list_s16[5] & 0x1FF;
948 u32 color = list[0] & 0xFFFFFF;
951 width = ((width + 0xF) & ~0xF);
953 do_fill(psx_gpu, x, y, width, height, color);
955 psx_gpu->vram_out_ptr = psx_gpu->enhancement_current_buf_ptr;
960 render_block_fill_enh(psx_gpu, color, x, y, width, height);
966 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
968 get_vertex_data_xy(0, 2);
969 get_vertex_data_xy(1, 4);
970 get_vertex_data_xy(2, 6);
972 do_triangle_enhanced(psx_gpu, vertexes, current_command);
978 set_clut(psx_gpu, list_s16[5]);
979 set_texture(psx_gpu, list_s16[9]);
980 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
982 get_vertex_data_xy_uv(0, 2);
983 get_vertex_data_xy_uv(1, 6);
984 get_vertex_data_xy_uv(2, 10);
986 do_triangle_enhanced(psx_gpu, vertexes, current_command);
992 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
994 get_vertex_data_xy(0, 2);
995 get_vertex_data_xy(1, 4);
996 get_vertex_data_xy(2, 6);
997 get_vertex_data_xy(3, 8);
999 do_quad_enhanced(psx_gpu, vertexes, current_command);
1005 set_clut(psx_gpu, list_s16[5]);
1006 set_texture(psx_gpu, list_s16[9]);
1007 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1009 get_vertex_data_xy_uv(0, 2);
1010 get_vertex_data_xy_uv(1, 6);
1011 get_vertex_data_xy_uv(2, 10);
1012 get_vertex_data_xy_uv(3, 14);
1014 do_quad_enhanced(psx_gpu, vertexes, current_command);
1020 get_vertex_data_xy_rgb(0, 0);
1021 get_vertex_data_xy_rgb(1, 4);
1022 get_vertex_data_xy_rgb(2, 8);
1024 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1033 set_clut(psx_gpu, list_s16[5]);
1034 set_texture(psx_gpu, list_s16[11]);
1036 get_vertex_data_xy_uv_rgb(0, 0);
1037 get_vertex_data_xy_uv_rgb(1, 6);
1038 get_vertex_data_xy_uv_rgb(2, 12);
1040 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1049 get_vertex_data_xy_rgb(0, 0);
1050 get_vertex_data_xy_rgb(1, 4);
1051 get_vertex_data_xy_rgb(2, 8);
1052 get_vertex_data_xy_rgb(3, 12);
1054 do_quad_enhanced(psx_gpu, vertexes, current_command);
1063 set_clut(psx_gpu, list_s16[5]);
1064 set_texture(psx_gpu, list_s16[11]);
1066 get_vertex_data_xy_uv_rgb(0, 0);
1067 get_vertex_data_xy_uv_rgb(1, 6);
1068 get_vertex_data_xy_uv_rgb(2, 12);
1069 get_vertex_data_xy_uv_rgb(3, 18);
1071 do_quad_enhanced(psx_gpu, vertexes, current_command);
1077 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1078 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1079 vertexes[1].x = list_s16[4] + psx_gpu->offset_x;
1080 vertexes[1].y = list_s16[5] + psx_gpu->offset_y;
1082 render_line(psx_gpu, vertexes, current_command, list[0], 0);
1083 enhancement_enable();
1084 render_line(psx_gpu, vertexes, current_command, list[0], 1);
1090 u32 num_vertexes = 1;
1091 u32 *list_position = &(list[2]);
1094 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1095 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1097 xy = *list_position;
1100 vertexes[0] = vertexes[1];
1102 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1103 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1105 enhancement_disable();
1106 render_line(psx_gpu, vertexes, current_command, list[0], 0);
1107 enhancement_enable();
1108 render_line(psx_gpu, vertexes, current_command, list[0], 1);
1113 if(list_position >= list_end)
1116 xy = *list_position;
1117 if((xy & 0xF000F000) == 0x50005000)
1121 command_length += (num_vertexes - 2);
1127 vertexes[0].r = list[0] & 0xFF;
1128 vertexes[0].g = (list[0] >> 8) & 0xFF;
1129 vertexes[0].b = (list[0] >> 16) & 0xFF;
1130 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1131 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1133 vertexes[1].r = list[2] & 0xFF;
1134 vertexes[1].g = (list[2] >> 8) & 0xFF;
1135 vertexes[1].b = (list[2] >> 16) & 0xFF;
1136 vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
1137 vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
1139 render_line(psx_gpu, vertexes, current_command, 0, 0);
1140 enhancement_enable();
1141 render_line(psx_gpu, vertexes, current_command, 0, 1);
1147 u32 num_vertexes = 1;
1148 u32 *list_position = &(list[2]);
1149 u32 color = list[0];
1152 vertexes[1].r = color & 0xFF;
1153 vertexes[1].g = (color >> 8) & 0xFF;
1154 vertexes[1].b = (color >> 16) & 0xFF;
1155 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1156 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1158 color = list_position[0];
1161 xy = list_position[1];
1163 vertexes[0] = vertexes[1];
1165 vertexes[1].r = color & 0xFF;
1166 vertexes[1].g = (color >> 8) & 0xFF;
1167 vertexes[1].b = (color >> 16) & 0xFF;
1168 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1169 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1171 enhancement_disable();
1172 render_line(psx_gpu, vertexes, current_command, 0, 0);
1173 enhancement_enable();
1174 render_line(psx_gpu, vertexes, current_command, 0, 1);
1179 if(list_position >= list_end)
1182 color = list_position[0];
1183 if((color & 0xF000F000) == 0x50005000)
1187 command_length += ((num_vertexes - 2) * 2);
1193 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1194 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1195 u32 width = list_s16[4] & 0x3FF;
1196 u32 height = list_s16[5] & 0x1FF;
1198 render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
1199 do_esprite_in_triangles(psx_gpu, x, y, 0, 0, width, height, list[0]);
1205 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1206 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1208 u8 v = list_s16[4] >> 8;
1209 u32 width = list_s16[6] & 0x3FF;
1210 u32 height = list_s16[7] & 0x1FF;
1212 set_clut(psx_gpu, list_s16[5]);
1214 render_sprite(psx_gpu, x, y, u, v, width, height,
1215 current_command, list[0]);
1216 do_esprite_in_triangles(psx_gpu, x, y, u, v, width, height, list[0]);
1225 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1226 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1228 render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
1229 do_esprite_in_triangles(psx_gpu, x, y, 0, 0, 1, 1, list[0]);
1238 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1239 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1241 render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
1242 do_esprite_in_triangles(psx_gpu, x, y, 0, 0, 8, 8, list[0]);
1251 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1252 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1254 u8 v = list_s16[4] >> 8;
1256 set_clut(psx_gpu, list_s16[5]);
1258 render_sprite(psx_gpu, x, y, u, v, 8, 8,
1259 current_command, list[0]);
1260 do_esprite_in_triangles(psx_gpu, x, y, u, v, 8, 8, list[0]);
1269 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1270 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1272 render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
1273 do_esprite_in_triangles(psx_gpu, x, y, 0, 0, 16, 16, list[0]);
1282 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1283 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1285 u8 v = list_s16[4] >> 8;
1287 set_clut(psx_gpu, list_s16[5]);
1289 render_sprite(psx_gpu, x, y, u, v, 16, 16, current_command, list[0]);
1290 do_esprite_in_triangles(psx_gpu, x, y, u, v, 16, 16, list[0]);
1294 case 0x80: // vid -> vid
1295 render_block_move(psx_gpu, list_s16[2] & 0x3FF, list_s16[3] & 0x1FF,
1296 list_s16[4] & 0x3FF, list_s16[5] & 0x1FF,
1297 ((list_s16[6] - 1) & 0x3FF) + 1, ((list_s16[7] - 1) & 0x1FF) + 1);
1301 case 0xA0: // sys -> vid
1302 case 0xC0: // vid -> sys
1305 case 0xA0: // sys -> vid
1307 u32 load_x = list_s16[2] & 0x3FF;
1308 u32 load_y = list_s16[3] & 0x1FF;
1309 u32 load_width = list_s16[4] & 0x3FF;
1310 u32 load_height = list_s16[5] & 0x1FF;
1311 u32 load_size = load_width * load_height;
1313 command_length += load_size / 2;
1318 render_block_copy(psx_gpu, (u16 *)&(list_s16[6]), load_x, load_y,
1319 load_width, load_height, load_width);
1323 case 0xC0: // vid -> sys
1328 set_texture(psx_gpu, list[0]);
1330 if(list[0] & (1 << 9))
1331 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
1333 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
1335 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
1342 u32 texture_window_settings = list[0];
1343 u32 tmp, x, y, w, h;
1345 if(texture_window_settings != psx_gpu->texture_window_settings)
1347 tmp = (texture_window_settings & 0x1F) | 0x20;
1348 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
1350 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
1351 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
1353 tmp = 32 - (w >> 3);
1354 x = ((texture_window_settings >> 10) & tmp) << 3;
1356 tmp = 32 - (h >> 3);
1357 y = ((texture_window_settings >> 15) & tmp) << 3;
1359 flush_render_block_buffer(psx_gpu);
1361 psx_gpu->texture_window_settings = texture_window_settings;
1362 psx_gpu->texture_window_x = x;
1363 psx_gpu->texture_window_y = y;
1364 psx_gpu->texture_mask_width = w - 1;
1365 psx_gpu->texture_mask_height = h - 1;
1367 update_texture_ptr(psx_gpu);
1374 psx_gpu->viewport_start_x = list[0] & 0x3FF;
1375 psx_gpu->viewport_start_y = (list[0] >> 10) & 0x1FF;
1376 psx_gpu->saved_viewport_start_x = psx_gpu->viewport_start_x;
1377 psx_gpu->saved_viewport_start_y = psx_gpu->viewport_start_y;
1378 select_enhancement_buf(psx_gpu);
1380 #ifdef TEXTURE_CACHE_4BPP
1381 psx_gpu->viewport_mask =
1382 texture_region_mask(psx_gpu->viewport_start_x,
1383 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1384 psx_gpu->viewport_end_y);
1390 psx_gpu->viewport_end_x = list[0] & 0x3FF;
1391 psx_gpu->viewport_end_y = (list[0] >> 10) & 0x1FF;
1392 psx_gpu->saved_viewport_end_x = psx_gpu->viewport_end_x;
1393 psx_gpu->saved_viewport_end_y = psx_gpu->viewport_end_y;
1395 #ifdef TEXTURE_CACHE_4BPP
1396 psx_gpu->viewport_mask =
1397 texture_region_mask(psx_gpu->viewport_start_x,
1398 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1399 psx_gpu->viewport_end_y);
1406 s32 offset_x = list[0] << 21;
1407 s32 offset_y = list[0] << 10;
1408 psx_gpu->offset_x = offset_x >> 21;
1409 psx_gpu->offset_y = offset_y >> 21;
1417 u32 mask_settings = list[0];
1418 u16 mask_msb = mask_settings << 15;
1421 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
1423 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
1425 if(mask_msb != psx_gpu->mask_msb)
1427 flush_render_block_buffer(psx_gpu);
1428 psx_gpu->mask_msb = mask_msb;
1443 enhancement_disable();
1444 if (last_command != NULL)
1445 *last_command = current_command;
1446 return list - list_start;
1449 // vim:shiftwidth=2:expandtab