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
606 u32 sx = list_s16[2] & 0x3FF;
607 u32 sy = list_s16[3] & 0x1FF;
608 u32 dx = list_s16[4] & 0x3FF;
609 u32 dy = list_s16[5] & 0x1FF;
610 u32 w = ((list_s16[6] - 1) & 0x3FF) + 1;
611 u32 h = ((list_s16[7] - 1) & 0x1FF) + 1;
613 if (sx == dx && sy == dy && psx_gpu->mask_msb == 0)
616 render_block_move(psx_gpu, sx, sy, dx, dy, w, h);
621 case 0xA0: // sys -> vid
622 case 0xC0: // vid -> sys
625 case 0xA0: // sys -> vid
627 u32 load_x = list_s16[2] & 0x3FF;
628 u32 load_y = list_s16[3] & 0x1FF;
629 u32 load_width = list_s16[4] & 0x3FF;
630 u32 load_height = list_s16[5] & 0x1FF;
631 u32 load_size = load_width * load_height;
633 command_length += load_size / 2;
638 render_block_copy(psx_gpu, (u16 *)&(list_s16[6]), load_x, load_y,
639 load_width, load_height, load_width);
643 case 0xC0: // vid -> sys
648 set_texture(psx_gpu, list[0]);
650 if(list[0] & (1 << 9))
651 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
653 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
655 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
662 u32 texture_window_settings = list[0];
665 if(texture_window_settings != psx_gpu->texture_window_settings)
667 tmp = (texture_window_settings & 0x1F) | 0x20;
668 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
670 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
671 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
674 x = ((texture_window_settings >> 10) & tmp) << 3;
677 y = ((texture_window_settings >> 15) & tmp) << 3;
679 flush_render_block_buffer(psx_gpu);
681 psx_gpu->texture_window_settings = texture_window_settings;
682 psx_gpu->texture_window_x = x;
683 psx_gpu->texture_window_y = y;
684 psx_gpu->texture_mask_width = w - 1;
685 psx_gpu->texture_mask_height = h - 1;
687 update_texture_ptr(psx_gpu);
695 s16 viewport_start_x = list[0] & 0x3FF;
696 s16 viewport_start_y = (list[0] >> 10) & 0x1FF;
698 if(viewport_start_x == psx_gpu->viewport_start_x &&
699 viewport_start_y == psx_gpu->viewport_start_y)
704 psx_gpu->viewport_start_x = viewport_start_x;
705 psx_gpu->viewport_start_y = viewport_start_y;
707 #ifdef TEXTURE_CACHE_4BPP
708 psx_gpu->viewport_mask =
709 texture_region_mask(psx_gpu->viewport_start_x,
710 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
711 psx_gpu->viewport_end_y);
719 s16 viewport_end_x = list[0] & 0x3FF;
720 s16 viewport_end_y = (list[0] >> 10) & 0x1FF;
722 if(viewport_end_x == psx_gpu->viewport_end_x &&
723 viewport_end_y == psx_gpu->viewport_end_y)
728 psx_gpu->viewport_end_x = viewport_end_x;
729 psx_gpu->viewport_end_y = viewport_end_y;
731 #ifdef TEXTURE_CACHE_4BPP
732 psx_gpu->viewport_mask =
733 texture_region_mask(psx_gpu->viewport_start_x,
734 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
735 psx_gpu->viewport_end_y);
743 s32 offset_x = list[0] << 21;
744 s32 offset_y = list[0] << 10;
745 psx_gpu->offset_x = offset_x >> 21;
746 psx_gpu->offset_y = offset_y >> 21;
754 u32 mask_settings = list[0];
755 u16 mask_msb = mask_settings << 15;
758 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
760 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
762 if(mask_msb != psx_gpu->mask_msb)
764 flush_render_block_buffer(psx_gpu);
765 psx_gpu->mask_msb = mask_msb;
780 if (last_command != NULL)
781 *last_command = current_command;
782 return list - list_start;
787 #define ENH_BUF_TABLE_STEP (1024 / sizeof(psx_gpu->enhancement_buf_by_x16))
789 static void update_enhancement_buf_table_from_hres(psx_gpu_struct *psx_gpu)
794 s = psx_gpu->enhancement_x_threshold;
795 for (x = 0; x < sizeof(psx_gpu->enhancement_buf_by_x16); x++)
797 if (b < 3 && x * ENH_BUF_TABLE_STEP >= s - ENH_BUF_TABLE_STEP - 1)
799 s += psx_gpu->enhancement_x_threshold;
802 psx_gpu->enhancement_buf_by_x16[x] = b;
806 static void update_enhancement_buf_table_from_x(psx_gpu_struct *psx_gpu,
811 for (x = x0, b = 0; x >= len; b++)
816 memset(psx_gpu->enhancement_buf_by_x16 + x0 / ENH_BUF_TABLE_STEP,
817 b, (len + ENH_BUF_TABLE_STEP - 1) / ENH_BUF_TABLE_STEP);
820 #define select_enhancement_buf(psx_gpu) \
821 psx_gpu->enhancement_current_buf_ptr = \
822 select_enhancement_buf_ptr(psx_gpu, psx_gpu->saved_viewport_start_x)
824 #define enhancement_disable() { \
825 psx_gpu->vram_out_ptr = psx_gpu->vram_ptr; \
826 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x; \
827 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y; \
828 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x; \
829 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y; \
830 psx_gpu->uvrgb_phase = 0x8000; \
833 #define enhancement_enable() { \
834 psx_gpu->vram_out_ptr = psx_gpu->enhancement_current_buf_ptr; \
835 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x * 2; \
836 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y * 2; \
837 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x * 2 + 1; \
838 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y * 2 + 1; \
839 psx_gpu->uvrgb_phase = 0x1000; \
842 #define shift_vertices3(v) { \
851 #define unshift_vertices3(v) { \
860 #define shift_triangle_area() \
861 psx_gpu->triangle_area *= 4
863 extern void scale2x_tiles8(void *dst, const void *src, int w8, int h);
867 void scale2x_tiles8(void *dst, const void *src, int w8, int h) {}
870 static int disable_main_render;
872 static void do_triangle_enhanced(psx_gpu_struct *psx_gpu,
873 vertex_struct *vertexes, u32 current_command)
875 vertex_struct *vertex_ptrs[3];
877 if (!prepare_triangle(psx_gpu, vertexes, vertex_ptrs))
880 if (!disable_main_render)
881 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
883 enhancement_enable();
884 shift_vertices3(vertex_ptrs);
885 shift_triangle_area();
886 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
889 static void do_quad_enhanced(psx_gpu_struct *psx_gpu, vertex_struct *vertexes,
892 vertex_struct *vertex_ptrs[3];
894 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
895 if (!disable_main_render)
896 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
898 enhancement_enable();
899 shift_vertices3(vertex_ptrs);
900 shift_triangle_area();
901 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
902 unshift_vertices3(vertex_ptrs);
904 enhancement_disable();
905 if (prepare_triangle(psx_gpu, &vertexes[1], vertex_ptrs)) {
906 if (!disable_main_render)
907 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
909 enhancement_enable();
910 shift_vertices3(vertex_ptrs);
911 shift_triangle_area();
912 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
918 #define fill_vertex(i, x_, y_, u_, v_, rgb_) \
919 vertexes[i].x = x_; \
920 vertexes[i].y = y_; \
921 vertexes[i].u = u_; \
922 vertexes[i].v = v_; \
923 vertexes[i].r = rgb_; \
924 vertexes[i].g = (rgb_) >> 8; \
925 vertexes[i].b = (rgb_) >> 16
927 static void do_sprite_enhanced(psx_gpu_struct *psx_gpu, int x, int y,
928 u32 u, u32 v, u32 w, u32 h, u32 cmd_rgb)
930 vertex_struct *vertex_ptrs[3];
931 u32 flags = (cmd_rgb >> 24);
932 u32 color = cmd_rgb & 0xffffff;
933 u32 render_state_base_saved = psx_gpu->render_state_base;
938 (RENDER_FLAGS_MODULATE_TEXELS | RENDER_FLAGS_BLEND |
939 RENDER_FLAGS_TEXTURE_MAP);
941 set_triangle_color(psx_gpu, color);
942 if(color == 0x808080)
943 flags |= RENDER_FLAGS_MODULATE_TEXELS;
945 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
946 enhancement_enable();
953 if (u1 < u) u1 = 0xff;
954 if (v1 < v) v1 = 0xff;
959 fill_vertex(0, x, y, u, v, color);
960 fill_vertex(1, x, y1, u, v1, color);
961 fill_vertex(2, x1, y, u1, v, color);
962 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
963 shift_vertices3(vertex_ptrs);
964 shift_triangle_area();
965 render_triangle_p(psx_gpu, vertex_ptrs, flags);
971 fill_vertex(0, x1, y, u1, v, color);
972 fill_vertex(1, x, y1, u, v1, color);
973 fill_vertex(2, x1, y1, u1, v1, color);
974 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
975 shift_vertices3(vertex_ptrs);
976 shift_triangle_area();
977 render_triangle_p(psx_gpu, vertex_ptrs, flags);
980 psx_gpu->render_state_base = render_state_base_saved;
983 static void do_sprite_enhanced(psx_gpu_struct *psx_gpu, int x, int y,
984 u32 u, u32 v, u32 w, u32 h, u32 cmd_rgb)
986 u32 flags = (cmd_rgb >> 24);
987 u32 color = cmd_rgb & 0xffffff;
989 render_sprite_4x(psx_gpu, x, y, u, v, w, h, flags, color);
993 u32 gpu_parse_enhanced(psx_gpu_struct *psx_gpu, u32 *list, u32 size,
996 u32 current_command = 0, command_length;
998 u32 *list_start = list;
999 u32 *list_end = list + (size / 4);
1001 psx_gpu->saved_viewport_start_x = psx_gpu->viewport_start_x;
1002 psx_gpu->saved_viewport_start_y = psx_gpu->viewport_start_y;
1003 psx_gpu->saved_viewport_end_x = psx_gpu->viewport_end_x;
1004 psx_gpu->saved_viewport_end_y = psx_gpu->viewport_end_y;
1005 select_enhancement_buf(psx_gpu);
1007 for(; list < list_end; list += 1 + command_length)
1009 s16 *list_s16 = (void *)list;
1010 current_command = *list >> 24;
1011 command_length = command_lengths[current_command];
1012 if (list + 1 + command_length > list_end) {
1013 current_command = (u32)-1;
1017 enhancement_disable();
1019 switch(current_command)
1026 u32 x = list_s16[2] & 0x3FF;
1027 u32 y = list_s16[3] & 0x1FF;
1028 u32 width = list_s16[4] & 0x3FF;
1029 u32 height = list_s16[5] & 0x1FF;
1030 u32 color = list[0] & 0xFFFFFF;
1033 width = ((width + 0xF) & ~0xF);
1035 do_fill(psx_gpu, x, y, width, height, color);
1037 psx_gpu->vram_out_ptr = select_enhancement_buf_ptr(psx_gpu, x);
1042 render_block_fill_enh(psx_gpu, color, x, y, width, height);
1048 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1050 get_vertex_data_xy(0, 2);
1051 get_vertex_data_xy(1, 4);
1052 get_vertex_data_xy(2, 6);
1054 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1060 set_clut(psx_gpu, list_s16[5]);
1061 set_texture(psx_gpu, list_s16[9]);
1062 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1064 get_vertex_data_xy_uv(0, 2);
1065 get_vertex_data_xy_uv(1, 6);
1066 get_vertex_data_xy_uv(2, 10);
1068 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1074 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1076 get_vertex_data_xy(0, 2);
1077 get_vertex_data_xy(1, 4);
1078 get_vertex_data_xy(2, 6);
1079 get_vertex_data_xy(3, 8);
1081 do_quad_enhanced(psx_gpu, vertexes, current_command);
1087 set_clut(psx_gpu, list_s16[5]);
1088 set_texture(psx_gpu, list_s16[9]);
1089 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1091 get_vertex_data_xy_uv(0, 2);
1092 get_vertex_data_xy_uv(1, 6);
1093 get_vertex_data_xy_uv(2, 10);
1094 get_vertex_data_xy_uv(3, 14);
1096 do_quad_enhanced(psx_gpu, vertexes, current_command);
1102 get_vertex_data_xy_rgb(0, 0);
1103 get_vertex_data_xy_rgb(1, 4);
1104 get_vertex_data_xy_rgb(2, 8);
1106 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1115 set_clut(psx_gpu, list_s16[5]);
1116 set_texture(psx_gpu, list_s16[11]);
1118 get_vertex_data_xy_uv_rgb(0, 0);
1119 get_vertex_data_xy_uv_rgb(1, 6);
1120 get_vertex_data_xy_uv_rgb(2, 12);
1122 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1131 get_vertex_data_xy_rgb(0, 0);
1132 get_vertex_data_xy_rgb(1, 4);
1133 get_vertex_data_xy_rgb(2, 8);
1134 get_vertex_data_xy_rgb(3, 12);
1136 do_quad_enhanced(psx_gpu, vertexes, current_command);
1145 set_clut(psx_gpu, list_s16[5]);
1146 set_texture(psx_gpu, list_s16[11]);
1148 get_vertex_data_xy_uv_rgb(0, 0);
1149 get_vertex_data_xy_uv_rgb(1, 6);
1150 get_vertex_data_xy_uv_rgb(2, 12);
1151 get_vertex_data_xy_uv_rgb(3, 18);
1153 do_quad_enhanced(psx_gpu, vertexes, current_command);
1159 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1160 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1161 vertexes[1].x = list_s16[4] + psx_gpu->offset_x;
1162 vertexes[1].y = list_s16[5] + psx_gpu->offset_y;
1164 render_line(psx_gpu, vertexes, current_command, list[0], 0);
1165 enhancement_enable();
1166 render_line(psx_gpu, vertexes, current_command, list[0], 1);
1172 u32 num_vertexes = 1;
1173 u32 *list_position = &(list[2]);
1176 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1177 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1179 xy = *list_position;
1182 vertexes[0] = vertexes[1];
1184 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1185 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1187 enhancement_disable();
1188 render_line(psx_gpu, vertexes, current_command, list[0], 0);
1189 enhancement_enable();
1190 render_line(psx_gpu, vertexes, current_command, list[0], 1);
1195 if(list_position >= list_end)
1198 xy = *list_position;
1199 if((xy & 0xF000F000) == 0x50005000)
1203 command_length += (num_vertexes - 2);
1209 vertexes[0].r = list[0] & 0xFF;
1210 vertexes[0].g = (list[0] >> 8) & 0xFF;
1211 vertexes[0].b = (list[0] >> 16) & 0xFF;
1212 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1213 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1215 vertexes[1].r = list[2] & 0xFF;
1216 vertexes[1].g = (list[2] >> 8) & 0xFF;
1217 vertexes[1].b = (list[2] >> 16) & 0xFF;
1218 vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
1219 vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
1221 render_line(psx_gpu, vertexes, current_command, 0, 0);
1222 enhancement_enable();
1223 render_line(psx_gpu, vertexes, current_command, 0, 1);
1229 u32 num_vertexes = 1;
1230 u32 *list_position = &(list[2]);
1231 u32 color = list[0];
1234 vertexes[1].r = color & 0xFF;
1235 vertexes[1].g = (color >> 8) & 0xFF;
1236 vertexes[1].b = (color >> 16) & 0xFF;
1237 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1238 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1240 color = list_position[0];
1243 xy = list_position[1];
1245 vertexes[0] = vertexes[1];
1247 vertexes[1].r = color & 0xFF;
1248 vertexes[1].g = (color >> 8) & 0xFF;
1249 vertexes[1].b = (color >> 16) & 0xFF;
1250 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1251 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1253 enhancement_disable();
1254 render_line(psx_gpu, vertexes, current_command, 0, 0);
1255 enhancement_enable();
1256 render_line(psx_gpu, vertexes, current_command, 0, 1);
1261 if(list_position >= list_end)
1264 color = list_position[0];
1265 if((color & 0xF000F000) == 0x50005000)
1269 command_length += ((num_vertexes - 2) * 2);
1275 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1276 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1277 u32 width = list_s16[4] & 0x3FF;
1278 u32 height = list_s16[5] & 0x1FF;
1280 render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
1281 do_sprite_enhanced(psx_gpu, x, y, 0, 0, width, height, list[0]);
1287 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1288 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1290 u8 v = list_s16[4] >> 8;
1291 u32 width = list_s16[6] & 0x3FF;
1292 u32 height = list_s16[7] & 0x1FF;
1294 set_clut(psx_gpu, list_s16[5]);
1296 render_sprite(psx_gpu, x, y, u, v, width, height,
1297 current_command, list[0]);
1298 do_sprite_enhanced(psx_gpu, x, y, u, v, width, height, list[0]);
1307 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1308 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1310 render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
1311 do_sprite_enhanced(psx_gpu, x, y, 0, 0, 1, 1, list[0]);
1320 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1321 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1323 render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
1324 do_sprite_enhanced(psx_gpu, x, y, 0, 0, 8, 8, list[0]);
1333 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1334 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1336 u8 v = list_s16[4] >> 8;
1338 set_clut(psx_gpu, list_s16[5]);
1340 render_sprite(psx_gpu, x, y, u, v, 8, 8,
1341 current_command, list[0]);
1342 do_sprite_enhanced(psx_gpu, x, y, u, v, 8, 8, list[0]);
1351 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1352 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1354 render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
1355 do_sprite_enhanced(psx_gpu, x, y, 0, 0, 16, 16, list[0]);
1364 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1365 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1367 u8 v = list_s16[4] >> 8;
1369 set_clut(psx_gpu, list_s16[5]);
1371 render_sprite(psx_gpu, x, y, u, v, 16, 16, current_command, list[0]);
1372 do_sprite_enhanced(psx_gpu, x, y, u, v, 16, 16, list[0]);
1376 case 0x80: // vid -> vid
1378 u32 sx = list_s16[2] & 0x3FF;
1379 u32 sy = list_s16[3] & 0x1FF;
1380 u32 dx = list_s16[4] & 0x3FF;
1381 u32 dy = list_s16[5] & 0x1FF;
1382 u32 w = ((list_s16[6] - 1) & 0x3FF) + 1;
1383 u32 h = ((list_s16[7] - 1) & 0x1FF) + 1;
1386 if (sx == dx && sy == dy && psx_gpu->mask_msb == 0)
1389 render_block_move(psx_gpu, sx, sy, dx, dy, w, h);
1392 sx = sx & ~7; // FIXME?
1396 buf = select_enhancement_buf_ptr(psx_gpu, dx / 2);
1397 scale2x_tiles8(buf + dy * 1024 + dx,
1398 psx_gpu->vram_ptr + sy * 1024 + sx, w, h);
1402 case 0xA0: // sys -> vid
1403 case 0xC0: // vid -> sys
1407 set_texture(psx_gpu, list[0]);
1409 if(list[0] & (1 << 9))
1410 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
1412 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
1414 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
1421 u32 texture_window_settings = list[0];
1422 u32 tmp, x, y, w, h;
1424 if(texture_window_settings != psx_gpu->texture_window_settings)
1426 tmp = (texture_window_settings & 0x1F) | 0x20;
1427 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
1429 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
1430 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
1432 tmp = 32 - (w >> 3);
1433 x = ((texture_window_settings >> 10) & tmp) << 3;
1435 tmp = 32 - (h >> 3);
1436 y = ((texture_window_settings >> 15) & tmp) << 3;
1438 flush_render_block_buffer(psx_gpu);
1440 psx_gpu->texture_window_settings = texture_window_settings;
1441 psx_gpu->texture_window_x = x;
1442 psx_gpu->texture_window_y = y;
1443 psx_gpu->texture_mask_width = w - 1;
1444 psx_gpu->texture_mask_height = h - 1;
1446 update_texture_ptr(psx_gpu);
1454 s16 viewport_start_x = list[0] & 0x3FF;
1455 s16 viewport_start_y = (list[0] >> 10) & 0x1FF;
1459 if(viewport_start_x == psx_gpu->viewport_start_x &&
1460 viewport_start_y == psx_gpu->viewport_start_y)
1464 psx_gpu->viewport_start_x = viewport_start_x;
1465 psx_gpu->viewport_start_y = viewport_start_y;
1466 psx_gpu->saved_viewport_start_x = viewport_start_x;
1467 psx_gpu->saved_viewport_start_y = viewport_start_y;
1469 w = (u32)psx_gpu->viewport_end_x - (u32)viewport_start_x + 1;
1470 d = psx_gpu->enhancement_x_threshold - w;
1471 if(-16 <= d && d <= 16)
1473 update_enhancement_buf_table_from_x(psx_gpu,
1474 viewport_start_x, w);
1476 select_enhancement_buf(psx_gpu);
1478 #ifdef TEXTURE_CACHE_4BPP
1479 psx_gpu->viewport_mask =
1480 texture_region_mask(psx_gpu->viewport_start_x,
1481 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1482 psx_gpu->viewport_end_y);
1490 s16 viewport_end_x = list[0] & 0x3FF;
1491 s16 viewport_end_y = (list[0] >> 10) & 0x1FF;
1495 if(viewport_end_x == psx_gpu->viewport_end_x &&
1496 viewport_end_y == psx_gpu->viewport_end_y)
1501 psx_gpu->viewport_end_x = viewport_end_x;
1502 psx_gpu->viewport_end_y = viewport_end_y;
1503 psx_gpu->saved_viewport_end_x = viewport_end_x;
1504 psx_gpu->saved_viewport_end_y = viewport_end_y;
1506 w = (u32)viewport_end_x - (u32)psx_gpu->viewport_start_x + 1;
1507 d = psx_gpu->enhancement_x_threshold - w;
1508 if(-16 <= d && d <= 16)
1510 update_enhancement_buf_table_from_x(psx_gpu,
1511 psx_gpu->viewport_start_x, w);
1513 select_enhancement_buf(psx_gpu);
1515 #ifdef TEXTURE_CACHE_4BPP
1516 psx_gpu->viewport_mask =
1517 texture_region_mask(psx_gpu->viewport_start_x,
1518 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1519 psx_gpu->viewport_end_y);
1527 s32 offset_x = list[0] << 21;
1528 s32 offset_y = list[0] << 10;
1529 psx_gpu->offset_x = offset_x >> 21;
1530 psx_gpu->offset_y = offset_y >> 21;
1538 u32 mask_settings = list[0];
1539 u16 mask_msb = mask_settings << 15;
1542 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
1544 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
1546 if(mask_msb != psx_gpu->mask_msb)
1548 flush_render_block_buffer(psx_gpu);
1549 psx_gpu->mask_msb = mask_msb;
1561 enhancement_disable();
1564 if (last_command != NULL)
1565 *last_command = current_command;
1566 return list - list_start;
1571 // vim:shiftwidth=2:expandtab