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]);
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]);
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);
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);
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 enhancement_disable() { \
754 psx_gpu->vram_out_ptr = psx_gpu->vram_ptr; \
755 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x; \
756 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y; \
757 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x; \
758 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y; \
759 psx_gpu->render_mode &= ~RENDER_DOUBLE_MODE; \
762 #define enhancement_enable() { \
763 psx_gpu->vram_out_ptr = psx_gpu->enhancement_buf_ptr; \
764 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x * 2; \
765 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y * 2; \
766 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x * 2; \
767 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y * 2; \
768 psx_gpu->render_mode |= RENDER_DOUBLE_MODE; \
771 #define shift_vertices3(v) { \
780 #define unshift_vertices3(v) { \
789 #define shift_triangle_area() \
790 psx_gpu->triangle_area *= 4
792 static int disable_main_render;
794 static void do_triangle_enhanced(psx_gpu_struct *psx_gpu,
795 vertex_struct *vertexes, u32 current_command)
797 vertex_struct *vertex_ptrs[3];
799 if (!prepare_triangle(psx_gpu, vertexes, vertex_ptrs))
802 if (!disable_main_render)
803 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
805 enhancement_enable();
806 shift_vertices3(vertex_ptrs);
807 shift_triangle_area();
808 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
811 static void do_quad_enhanced(psx_gpu_struct *psx_gpu, vertex_struct *vertexes,
814 vertex_struct *vertex_ptrs[3];
816 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
817 if (!disable_main_render)
818 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
820 enhancement_enable();
821 shift_vertices3(vertex_ptrs);
822 shift_triangle_area();
823 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
824 unshift_vertices3(vertex_ptrs);
826 enhancement_disable();
827 if (prepare_triangle(psx_gpu, &vertexes[1], vertex_ptrs)) {
828 if (!disable_main_render)
829 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
831 enhancement_enable();
832 shift_vertices3(vertex_ptrs);
833 shift_triangle_area();
834 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
838 #define fill_vertex(i, x_, y_, u_, v_, rgb_) \
839 vertexes[i].x = x_; \
840 vertexes[i].y = y_; \
841 vertexes[i].u = u_; \
842 vertexes[i].v = v_; \
843 vertexes[i].r = rgb_; \
844 vertexes[i].g = (rgb_) >> 8; \
845 vertexes[i].b = (rgb_) >> 16
847 static void do_esprite_in_triangles(psx_gpu_struct *psx_gpu, int x, int y,
848 u32 u, u32 v, u32 w, u32 h, u32 cmd_rgb)
850 vertex_struct *vertex_ptrs[3];
851 u32 flags = (cmd_rgb >> 24);
852 u32 color = cmd_rgb & 0xffffff;
853 u32 render_state_base_saved = psx_gpu->render_state_base;
858 (RENDER_FLAGS_MODULATE_TEXELS | RENDER_FLAGS_BLEND |
859 RENDER_FLAGS_TEXTURE_MAP);
861 set_triangle_color(psx_gpu, color);
862 if(color == 0x808080)
863 flags |= RENDER_FLAGS_MODULATE_TEXELS;
865 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
866 enhancement_enable();
873 if (u1 < u) u1 = 0xff;
874 if (v1 < v) v1 = 0xff;
879 fill_vertex(0, x, y, u, v, color);
880 fill_vertex(1, x, y1, u, v1, color);
881 fill_vertex(2, x1, y, u1, v, color);
882 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
883 shift_vertices3(vertex_ptrs);
884 shift_triangle_area();
885 render_triangle_p(psx_gpu, vertex_ptrs, flags);
891 fill_vertex(0, x1, y, u1, v, color);
892 fill_vertex(1, x, y1, u, v1, color);
893 fill_vertex(2, x1, y1, u1, v1, color);
894 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
895 shift_vertices3(vertex_ptrs);
896 shift_triangle_area();
897 render_triangle_p(psx_gpu, vertex_ptrs, flags);
900 psx_gpu->render_state_base = render_state_base_saved;
903 u32 gpu_parse_enhanced(psx_gpu_struct *psx_gpu, u32 *list, u32 size, u32 *last_command)
905 u32 current_command = 0, command_length;
907 u32 *list_start = list;
908 u32 *list_end = list + (size / 4);
910 psx_gpu->saved_viewport_start_x = psx_gpu->viewport_start_x;
911 psx_gpu->saved_viewport_start_y = psx_gpu->viewport_start_y;
912 psx_gpu->saved_viewport_end_x = psx_gpu->viewport_end_x;
913 psx_gpu->saved_viewport_end_y = psx_gpu->viewport_end_y;
915 for(; list < list_end; list += 1 + command_length)
917 s16 *list_s16 = (void *)list;
918 current_command = *list >> 24;
919 command_length = command_lengths[current_command];
920 if (list + 1 + command_length > list_end) {
921 current_command = (u32)-1;
925 enhancement_disable();
927 switch(current_command)
934 u32 x = list_s16[2] & 0x3FF;
935 u32 y = list_s16[3] & 0x1FF;
936 u32 width = list_s16[4] & 0x3FF;
937 u32 height = list_s16[5] & 0x1FF;
938 u32 color = list[0] & 0xFFFFFF;
941 width = ((width + 0xF) & ~0xF);
943 do_fill(psx_gpu, x, y, width, height, color);
945 psx_gpu->vram_out_ptr = psx_gpu->enhancement_buf_ptr;
950 render_block_fill_enh(psx_gpu, color, x, y, width, height);
956 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
958 get_vertex_data_xy(0, 2);
959 get_vertex_data_xy(1, 4);
960 get_vertex_data_xy(2, 6);
962 do_triangle_enhanced(psx_gpu, vertexes, current_command);
968 set_clut(psx_gpu, list_s16[5]);
969 set_texture(psx_gpu, list_s16[9]);
970 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
972 get_vertex_data_xy_uv(0, 2);
973 get_vertex_data_xy_uv(1, 6);
974 get_vertex_data_xy_uv(2, 10);
976 do_triangle_enhanced(psx_gpu, vertexes, current_command);
982 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
984 get_vertex_data_xy(0, 2);
985 get_vertex_data_xy(1, 4);
986 get_vertex_data_xy(2, 6);
987 get_vertex_data_xy(3, 8);
989 do_quad_enhanced(psx_gpu, vertexes, current_command);
995 set_clut(psx_gpu, list_s16[5]);
996 set_texture(psx_gpu, list_s16[9]);
997 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
999 get_vertex_data_xy_uv(0, 2);
1000 get_vertex_data_xy_uv(1, 6);
1001 get_vertex_data_xy_uv(2, 10);
1002 get_vertex_data_xy_uv(3, 14);
1004 do_quad_enhanced(psx_gpu, vertexes, current_command);
1010 get_vertex_data_xy_rgb(0, 0);
1011 get_vertex_data_xy_rgb(1, 4);
1012 get_vertex_data_xy_rgb(2, 8);
1014 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1023 set_clut(psx_gpu, list_s16[5]);
1024 set_texture(psx_gpu, list_s16[11]);
1026 get_vertex_data_xy_uv_rgb(0, 0);
1027 get_vertex_data_xy_uv_rgb(1, 6);
1028 get_vertex_data_xy_uv_rgb(2, 12);
1030 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1039 get_vertex_data_xy_rgb(0, 0);
1040 get_vertex_data_xy_rgb(1, 4);
1041 get_vertex_data_xy_rgb(2, 8);
1042 get_vertex_data_xy_rgb(3, 12);
1044 do_quad_enhanced(psx_gpu, vertexes, current_command);
1053 set_clut(psx_gpu, list_s16[5]);
1054 set_texture(psx_gpu, list_s16[11]);
1056 get_vertex_data_xy_uv_rgb(0, 0);
1057 get_vertex_data_xy_uv_rgb(1, 6);
1058 get_vertex_data_xy_uv_rgb(2, 12);
1059 get_vertex_data_xy_uv_rgb(3, 18);
1061 do_quad_enhanced(psx_gpu, vertexes, current_command);
1067 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1068 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1069 vertexes[1].x = list_s16[4] + psx_gpu->offset_x;
1070 vertexes[1].y = list_s16[5] + psx_gpu->offset_y;
1072 render_line(psx_gpu, vertexes, current_command, list[0]);
1078 u32 num_vertexes = 1;
1079 u32 *list_position = &(list[2]);
1082 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1083 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1085 xy = *list_position;
1088 vertexes[0] = vertexes[1];
1090 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1091 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1093 render_line(psx_gpu, vertexes, current_command, list[0]);
1098 if(list_position >= list_end)
1101 xy = *list_position;
1102 if((xy & 0xF000F000) == 0x50005000)
1106 command_length += (num_vertexes - 2);
1112 vertexes[0].r = list[0] & 0xFF;
1113 vertexes[0].g = (list[0] >> 8) & 0xFF;
1114 vertexes[0].b = (list[0] >> 16) & 0xFF;
1115 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1116 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1118 vertexes[1].r = list[2] & 0xFF;
1119 vertexes[1].g = (list[2] >> 8) & 0xFF;
1120 vertexes[1].b = (list[2] >> 16) & 0xFF;
1121 vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
1122 vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
1124 render_line(psx_gpu, vertexes, current_command, 0);
1130 u32 num_vertexes = 1;
1131 u32 *list_position = &(list[2]);
1132 u32 color = list[0];
1135 vertexes[1].r = color & 0xFF;
1136 vertexes[1].g = (color >> 8) & 0xFF;
1137 vertexes[1].b = (color >> 16) & 0xFF;
1138 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1139 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1141 color = list_position[0];
1144 xy = list_position[1];
1146 vertexes[0] = vertexes[1];
1148 vertexes[1].r = color & 0xFF;
1149 vertexes[1].g = (color >> 8) & 0xFF;
1150 vertexes[1].b = (color >> 16) & 0xFF;
1151 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1152 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1154 render_line(psx_gpu, vertexes, current_command, 0);
1159 if(list_position >= list_end)
1162 color = list_position[0];
1163 if((color & 0xF000F000) == 0x50005000)
1167 command_length += ((num_vertexes - 2) * 2);
1173 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1174 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1175 u32 width = list_s16[4] & 0x3FF;
1176 u32 height = list_s16[5] & 0x1FF;
1178 render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
1179 do_esprite_in_triangles(psx_gpu, x, y, 0, 0, width, height, list[0]);
1185 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1186 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1188 u8 v = list_s16[4] >> 8;
1189 u32 width = list_s16[6] & 0x3FF;
1190 u32 height = list_s16[7] & 0x1FF;
1192 set_clut(psx_gpu, list_s16[5]);
1194 render_sprite(psx_gpu, x, y, u, v, width, height,
1195 current_command, list[0]);
1196 do_esprite_in_triangles(psx_gpu, x, y, u, v, width, height, list[0]);
1205 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1206 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1208 render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
1209 do_esprite_in_triangles(psx_gpu, x, y, 0, 0, 1, 1, list[0]);
1218 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1219 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1221 render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
1222 do_esprite_in_triangles(psx_gpu, x, y, 0, 0, 8, 8, list[0]);
1231 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1232 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1234 u8 v = list_s16[4] >> 8;
1236 set_clut(psx_gpu, list_s16[5]);
1238 render_sprite(psx_gpu, x, y, u, v, 8, 8,
1239 current_command, list[0]);
1240 do_esprite_in_triangles(psx_gpu, x, y, u, v, 8, 8, list[0]);
1249 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1250 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1252 render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
1253 do_esprite_in_triangles(psx_gpu, x, y, 0, 0, 16, 16, list[0]);
1262 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1263 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1265 u8 v = list_s16[4] >> 8;
1267 set_clut(psx_gpu, list_s16[5]);
1269 render_sprite(psx_gpu, x, y, u, v, 16, 16, current_command, list[0]);
1270 do_esprite_in_triangles(psx_gpu, x, y, u, v, 16, 16, list[0]);
1274 case 0x80: // vid -> vid
1275 render_block_move(psx_gpu, list_s16[2] & 0x3FF, list_s16[3] & 0x1FF,
1276 list_s16[4] & 0x3FF, list_s16[5] & 0x1FF,
1277 ((list_s16[6] - 1) & 0x3FF) + 1, ((list_s16[7] - 1) & 0x1FF) + 1);
1281 case 0xA0: // sys -> vid
1282 case 0xC0: // vid -> sys
1285 case 0xA0: // sys -> vid
1287 u32 load_x = list_s16[2] & 0x3FF;
1288 u32 load_y = list_s16[3] & 0x1FF;
1289 u32 load_width = list_s16[4] & 0x3FF;
1290 u32 load_height = list_s16[5] & 0x1FF;
1291 u32 load_size = load_width * load_height;
1293 command_length += load_size / 2;
1298 render_block_copy(psx_gpu, (u16 *)&(list_s16[6]), load_x, load_y,
1299 load_width, load_height, load_width);
1303 case 0xC0: // vid -> sys
1308 set_texture(psx_gpu, list[0]);
1310 if(list[0] & (1 << 9))
1311 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
1313 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
1315 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
1322 u32 texture_window_settings = list[0];
1323 u32 tmp, x, y, w, h;
1325 if(texture_window_settings != psx_gpu->texture_window_settings)
1327 tmp = (texture_window_settings & 0x1F) | 0x20;
1328 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
1330 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
1331 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
1333 tmp = 32 - (w >> 3);
1334 x = ((texture_window_settings >> 10) & tmp) << 3;
1336 tmp = 32 - (h >> 3);
1337 y = ((texture_window_settings >> 15) & tmp) << 3;
1339 flush_render_block_buffer(psx_gpu);
1341 psx_gpu->texture_window_settings = texture_window_settings;
1342 psx_gpu->texture_window_x = x;
1343 psx_gpu->texture_window_y = y;
1344 psx_gpu->texture_mask_width = w - 1;
1345 psx_gpu->texture_mask_height = h - 1;
1347 update_texture_ptr(psx_gpu);
1354 psx_gpu->viewport_start_x = list[0] & 0x3FF;
1355 psx_gpu->viewport_start_y = (list[0] >> 10) & 0x1FF;
1356 psx_gpu->saved_viewport_start_x = psx_gpu->viewport_start_x;
1357 psx_gpu->saved_viewport_start_y = psx_gpu->viewport_start_y;
1359 #ifdef TEXTURE_CACHE_4BPP
1360 psx_gpu->viewport_mask =
1361 texture_region_mask(psx_gpu->viewport_start_x,
1362 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1363 psx_gpu->viewport_end_y);
1369 psx_gpu->viewport_end_x = list[0] & 0x3FF;
1370 psx_gpu->viewport_end_y = (list[0] >> 10) & 0x1FF;
1371 psx_gpu->saved_viewport_end_x = psx_gpu->viewport_end_x;
1372 psx_gpu->saved_viewport_end_y = psx_gpu->viewport_end_y;
1374 #ifdef TEXTURE_CACHE_4BPP
1375 psx_gpu->viewport_mask =
1376 texture_region_mask(psx_gpu->viewport_start_x,
1377 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1378 psx_gpu->viewport_end_y);
1385 s32 offset_x = list[0] << 21;
1386 s32 offset_y = list[0] << 10;
1387 psx_gpu->offset_x = offset_x >> 21;
1388 psx_gpu->offset_y = offset_y >> 21;
1396 u32 mask_settings = list[0];
1397 u16 mask_msb = mask_settings << 15;
1400 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
1402 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
1404 if(mask_msb != psx_gpu->mask_msb)
1406 flush_render_block_buffer(psx_gpu);
1407 psx_gpu->mask_msb = mask_msb;
1422 enhancement_disable();
1423 if (last_command != NULL)
1424 *last_command = current_command;
1425 return list - list_start;
1428 // vim:shiftwidth=2:expandtab