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)
439 current_command = (u32)-1;
444 if((xy & 0xF000F000) == 0x50005000)
448 command_length += (num_vertexes - 2);
454 vertexes[0].r = list[0] & 0xFF;
455 vertexes[0].g = (list[0] >> 8) & 0xFF;
456 vertexes[0].b = (list[0] >> 16) & 0xFF;
457 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
458 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
460 vertexes[1].r = list[2] & 0xFF;
461 vertexes[1].g = (list[2] >> 8) & 0xFF;
462 vertexes[1].b = (list[2] >> 16) & 0xFF;
463 vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
464 vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
466 render_line(psx_gpu, vertexes, current_command, 0, 0);
472 u32 num_vertexes = 1;
473 u32 *list_position = &(list[2]);
477 vertexes[1].r = color & 0xFF;
478 vertexes[1].g = (color >> 8) & 0xFF;
479 vertexes[1].b = (color >> 16) & 0xFF;
480 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
481 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
483 color = list_position[0];
486 xy = list_position[1];
488 vertexes[0] = vertexes[1];
490 vertexes[1].r = color & 0xFF;
491 vertexes[1].g = (color >> 8) & 0xFF;
492 vertexes[1].b = (color >> 16) & 0xFF;
493 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
494 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
496 render_line(psx_gpu, vertexes, current_command, 0, 0);
501 if(list_position >= list_end)
503 current_command = (u32)-1;
507 color = list_position[0];
508 if((color & 0xF000F000) == 0x50005000)
512 command_length += ((num_vertexes - 2) * 2);
518 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
519 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
520 u32 width = list_s16[4] & 0x3FF;
521 u32 height = list_s16[5] & 0x1FF;
523 render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
529 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
530 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
531 u32 uv = list_s16[4];
532 u32 width = list_s16[6] & 0x3FF;
533 u32 height = list_s16[7] & 0x1FF;
535 set_clut(psx_gpu, list_s16[5]);
537 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, width, height,
538 current_command, list[0]);
547 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
548 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
550 render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
559 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
560 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
562 render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
571 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
572 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
573 u32 uv = list_s16[4];
575 set_clut(psx_gpu, list_s16[5]);
577 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 8, 8,
578 current_command, list[0]);
587 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
588 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
590 render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
599 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
600 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
601 u32 uv = list_s16[4];
603 set_clut(psx_gpu, list_s16[5]);
605 render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 16, 16,
606 current_command, list[0]);
610 case 0x80: // vid -> vid
612 u32 sx = list_s16[2] & 0x3FF;
613 u32 sy = list_s16[3] & 0x1FF;
614 u32 dx = list_s16[4] & 0x3FF;
615 u32 dy = list_s16[5] & 0x1FF;
616 u32 w = ((list_s16[6] - 1) & 0x3FF) + 1;
617 u32 h = ((list_s16[7] - 1) & 0x1FF) + 1;
619 if (sx == dx && sy == dy && psx_gpu->mask_msb == 0)
622 render_block_move(psx_gpu, sx, sy, dx, dy, w, h);
627 case 0xA0: // sys -> vid
628 case 0xC0: // vid -> sys
631 case 0xA0: // sys -> vid
633 u32 load_x = list_s16[2] & 0x3FF;
634 u32 load_y = list_s16[3] & 0x1FF;
635 u32 load_width = list_s16[4] & 0x3FF;
636 u32 load_height = list_s16[5] & 0x1FF;
637 u32 load_size = load_width * load_height;
639 command_length += load_size / 2;
644 render_block_copy(psx_gpu, (u16 *)&(list_s16[6]), load_x, load_y,
645 load_width, load_height, load_width);
649 case 0xC0: // vid -> sys
654 set_texture(psx_gpu, list[0]);
656 if(list[0] & (1 << 9))
657 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
659 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
661 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
668 u32 texture_window_settings = list[0];
671 if(texture_window_settings != psx_gpu->texture_window_settings)
673 tmp = (texture_window_settings & 0x1F) | 0x20;
674 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
676 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
677 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
680 x = ((texture_window_settings >> 10) & tmp) << 3;
683 y = ((texture_window_settings >> 15) & tmp) << 3;
685 flush_render_block_buffer(psx_gpu);
687 psx_gpu->texture_window_settings = texture_window_settings;
688 psx_gpu->texture_window_x = x;
689 psx_gpu->texture_window_y = y;
690 psx_gpu->texture_mask_width = w - 1;
691 psx_gpu->texture_mask_height = h - 1;
693 update_texture_ptr(psx_gpu);
701 s16 viewport_start_x = list[0] & 0x3FF;
702 s16 viewport_start_y = (list[0] >> 10) & 0x1FF;
704 if(viewport_start_x == psx_gpu->viewport_start_x &&
705 viewport_start_y == psx_gpu->viewport_start_y)
710 psx_gpu->viewport_start_x = viewport_start_x;
711 psx_gpu->viewport_start_y = viewport_start_y;
713 #ifdef TEXTURE_CACHE_4BPP
714 psx_gpu->viewport_mask =
715 texture_region_mask(psx_gpu->viewport_start_x,
716 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
717 psx_gpu->viewport_end_y);
725 s16 viewport_end_x = list[0] & 0x3FF;
726 s16 viewport_end_y = (list[0] >> 10) & 0x1FF;
728 if(viewport_end_x == psx_gpu->viewport_end_x &&
729 viewport_end_y == psx_gpu->viewport_end_y)
734 psx_gpu->viewport_end_x = viewport_end_x;
735 psx_gpu->viewport_end_y = viewport_end_y;
737 #ifdef TEXTURE_CACHE_4BPP
738 psx_gpu->viewport_mask =
739 texture_region_mask(psx_gpu->viewport_start_x,
740 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
741 psx_gpu->viewport_end_y);
749 s32 offset_x = list[0] << 21;
750 s32 offset_y = list[0] << 10;
751 psx_gpu->offset_x = offset_x >> 21;
752 psx_gpu->offset_y = offset_y >> 21;
760 u32 mask_settings = list[0];
761 u16 mask_msb = mask_settings << 15;
764 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
766 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
768 if(mask_msb != psx_gpu->mask_msb)
770 flush_render_block_buffer(psx_gpu);
771 psx_gpu->mask_msb = mask_msb;
784 if (last_command != NULL)
785 *last_command = current_command;
786 return list - list_start;
791 #define ENH_BUF_TABLE_STEP (1024 / sizeof(psx_gpu->enhancement_buf_by_x16))
793 static void update_enhancement_buf_table_from_hres(psx_gpu_struct *psx_gpu)
798 s = psx_gpu->enhancement_x_threshold;
799 for (x = 0; x < sizeof(psx_gpu->enhancement_buf_by_x16); x++)
801 if (b < 3 && x * ENH_BUF_TABLE_STEP >= s - ENH_BUF_TABLE_STEP - 1)
803 s += psx_gpu->enhancement_x_threshold;
806 psx_gpu->enhancement_buf_by_x16[x] = b;
810 static void update_enhancement_buf_table_from_x(psx_gpu_struct *psx_gpu,
815 for (x = x0, b = 0; x >= len; b++)
820 memset(psx_gpu->enhancement_buf_by_x16 + x0 / ENH_BUF_TABLE_STEP,
821 b, (len + ENH_BUF_TABLE_STEP - 1) / ENH_BUF_TABLE_STEP);
824 #define select_enhancement_buf(psx_gpu) \
825 psx_gpu->enhancement_current_buf_ptr = \
826 select_enhancement_buf_ptr(psx_gpu, psx_gpu->saved_viewport_start_x)
828 #define enhancement_disable() { \
829 psx_gpu->vram_out_ptr = psx_gpu->vram_ptr; \
830 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x; \
831 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y; \
832 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x; \
833 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y; \
834 psx_gpu->uvrgb_phase = 0x8000; \
837 #define enhancement_enable() { \
838 psx_gpu->vram_out_ptr = psx_gpu->enhancement_current_buf_ptr; \
839 psx_gpu->viewport_start_x = psx_gpu->saved_viewport_start_x * 2; \
840 psx_gpu->viewport_start_y = psx_gpu->saved_viewport_start_y * 2; \
841 psx_gpu->viewport_end_x = psx_gpu->saved_viewport_end_x * 2 + 1; \
842 psx_gpu->viewport_end_y = psx_gpu->saved_viewport_end_y * 2 + 1; \
843 psx_gpu->uvrgb_phase = 0x1000; \
846 #define shift_vertices3(v) { \
855 #define unshift_vertices3(v) { \
864 #define shift_triangle_area() \
865 psx_gpu->triangle_area *= 4
867 extern void scale2x_tiles8(void *dst, const void *src, int w8, int h);
871 void scale2x_tiles8(void *dst, const void *src, int w8, int h) {}
874 static int disable_main_render;
876 static void do_triangle_enhanced(psx_gpu_struct *psx_gpu,
877 vertex_struct *vertexes, u32 current_command)
879 vertex_struct *vertex_ptrs[3];
881 if (!prepare_triangle(psx_gpu, vertexes, vertex_ptrs))
884 if (!disable_main_render)
885 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
887 enhancement_enable();
888 shift_vertices3(vertex_ptrs);
889 shift_triangle_area();
890 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
893 static void do_quad_enhanced(psx_gpu_struct *psx_gpu, vertex_struct *vertexes,
896 vertex_struct *vertex_ptrs[3];
898 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
899 if (!disable_main_render)
900 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
902 enhancement_enable();
903 shift_vertices3(vertex_ptrs);
904 shift_triangle_area();
905 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
906 unshift_vertices3(vertex_ptrs);
908 enhancement_disable();
909 if (prepare_triangle(psx_gpu, &vertexes[1], vertex_ptrs)) {
910 if (!disable_main_render)
911 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
913 enhancement_enable();
914 shift_vertices3(vertex_ptrs);
915 shift_triangle_area();
916 render_triangle_p(psx_gpu, vertex_ptrs, current_command);
922 #define fill_vertex(i, x_, y_, u_, v_, rgb_) \
923 vertexes[i].x = x_; \
924 vertexes[i].y = y_; \
925 vertexes[i].u = u_; \
926 vertexes[i].v = v_; \
927 vertexes[i].r = rgb_; \
928 vertexes[i].g = (rgb_) >> 8; \
929 vertexes[i].b = (rgb_) >> 16
931 static void do_sprite_enhanced(psx_gpu_struct *psx_gpu, int x, int y,
932 u32 u, u32 v, u32 w, u32 h, u32 cmd_rgb)
934 vertex_struct *vertex_ptrs[3];
935 u32 flags = (cmd_rgb >> 24);
936 u32 color = cmd_rgb & 0xffffff;
937 u32 render_state_base_saved = psx_gpu->render_state_base;
942 (RENDER_FLAGS_MODULATE_TEXELS | RENDER_FLAGS_BLEND |
943 RENDER_FLAGS_TEXTURE_MAP);
945 set_triangle_color(psx_gpu, color);
946 if(color == 0x808080)
947 flags |= RENDER_FLAGS_MODULATE_TEXELS;
949 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
950 enhancement_enable();
957 if (u1 < u) u1 = 0xff;
958 if (v1 < v) v1 = 0xff;
963 fill_vertex(0, x, y, u, v, color);
964 fill_vertex(1, x, y1, u, v1, color);
965 fill_vertex(2, x1, y, u1, v, color);
966 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
967 shift_vertices3(vertex_ptrs);
968 shift_triangle_area();
969 render_triangle_p(psx_gpu, vertex_ptrs, flags);
975 fill_vertex(0, x1, y, u1, v, color);
976 fill_vertex(1, x, y1, u, v1, color);
977 fill_vertex(2, x1, y1, u1, v1, color);
978 if (prepare_triangle(psx_gpu, vertexes, vertex_ptrs)) {
979 shift_vertices3(vertex_ptrs);
980 shift_triangle_area();
981 render_triangle_p(psx_gpu, vertex_ptrs, flags);
984 psx_gpu->render_state_base = render_state_base_saved;
987 static void do_sprite_enhanced(psx_gpu_struct *psx_gpu, int x, int y,
988 u32 u, u32 v, u32 w, u32 h, u32 cmd_rgb)
990 u32 flags = (cmd_rgb >> 24);
991 u32 color = cmd_rgb & 0xffffff;
993 render_sprite_4x(psx_gpu, x, y, u, v, w, h, flags, color);
997 u32 gpu_parse_enhanced(psx_gpu_struct *psx_gpu, u32 *list, u32 size,
1000 u32 current_command = 0, command_length;
1002 u32 *list_start = list;
1003 u32 *list_end = list + (size / 4);
1005 psx_gpu->saved_viewport_start_x = psx_gpu->viewport_start_x;
1006 psx_gpu->saved_viewport_start_y = psx_gpu->viewport_start_y;
1007 psx_gpu->saved_viewport_end_x = psx_gpu->viewport_end_x;
1008 psx_gpu->saved_viewport_end_y = psx_gpu->viewport_end_y;
1009 select_enhancement_buf(psx_gpu);
1011 for(; list < list_end; list += 1 + command_length)
1013 s16 *list_s16 = (void *)list;
1014 current_command = *list >> 24;
1015 command_length = command_lengths[current_command];
1016 if (list + 1 + command_length > list_end) {
1017 current_command = (u32)-1;
1021 enhancement_disable();
1023 switch(current_command)
1030 u32 x = list_s16[2] & 0x3FF;
1031 u32 y = list_s16[3] & 0x1FF;
1032 u32 width = list_s16[4] & 0x3FF;
1033 u32 height = list_s16[5] & 0x1FF;
1034 u32 color = list[0] & 0xFFFFFF;
1037 width = ((width + 0xF) & ~0xF);
1039 do_fill(psx_gpu, x, y, width, height, color);
1041 psx_gpu->vram_out_ptr = select_enhancement_buf_ptr(psx_gpu, x);
1046 render_block_fill_enh(psx_gpu, color, x, y, width, height);
1052 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1054 get_vertex_data_xy(0, 2);
1055 get_vertex_data_xy(1, 4);
1056 get_vertex_data_xy(2, 6);
1058 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1064 set_clut(psx_gpu, list_s16[5]);
1065 set_texture(psx_gpu, list_s16[9]);
1066 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1068 get_vertex_data_xy_uv(0, 2);
1069 get_vertex_data_xy_uv(1, 6);
1070 get_vertex_data_xy_uv(2, 10);
1072 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1078 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1080 get_vertex_data_xy(0, 2);
1081 get_vertex_data_xy(1, 4);
1082 get_vertex_data_xy(2, 6);
1083 get_vertex_data_xy(3, 8);
1085 do_quad_enhanced(psx_gpu, vertexes, current_command);
1091 set_clut(psx_gpu, list_s16[5]);
1092 set_texture(psx_gpu, list_s16[9]);
1093 set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
1095 get_vertex_data_xy_uv(0, 2);
1096 get_vertex_data_xy_uv(1, 6);
1097 get_vertex_data_xy_uv(2, 10);
1098 get_vertex_data_xy_uv(3, 14);
1100 do_quad_enhanced(psx_gpu, vertexes, current_command);
1106 get_vertex_data_xy_rgb(0, 0);
1107 get_vertex_data_xy_rgb(1, 4);
1108 get_vertex_data_xy_rgb(2, 8);
1110 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1119 set_clut(psx_gpu, list_s16[5]);
1120 set_texture(psx_gpu, list_s16[11]);
1122 get_vertex_data_xy_uv_rgb(0, 0);
1123 get_vertex_data_xy_uv_rgb(1, 6);
1124 get_vertex_data_xy_uv_rgb(2, 12);
1126 do_triangle_enhanced(psx_gpu, vertexes, current_command);
1135 get_vertex_data_xy_rgb(0, 0);
1136 get_vertex_data_xy_rgb(1, 4);
1137 get_vertex_data_xy_rgb(2, 8);
1138 get_vertex_data_xy_rgb(3, 12);
1140 do_quad_enhanced(psx_gpu, vertexes, current_command);
1149 set_clut(psx_gpu, list_s16[5]);
1150 set_texture(psx_gpu, list_s16[11]);
1152 get_vertex_data_xy_uv_rgb(0, 0);
1153 get_vertex_data_xy_uv_rgb(1, 6);
1154 get_vertex_data_xy_uv_rgb(2, 12);
1155 get_vertex_data_xy_uv_rgb(3, 18);
1157 do_quad_enhanced(psx_gpu, vertexes, current_command);
1163 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1164 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1165 vertexes[1].x = list_s16[4] + psx_gpu->offset_x;
1166 vertexes[1].y = list_s16[5] + psx_gpu->offset_y;
1168 render_line(psx_gpu, vertexes, current_command, list[0], 0);
1169 enhancement_enable();
1170 render_line(psx_gpu, vertexes, current_command, list[0], 1);
1176 u32 num_vertexes = 1;
1177 u32 *list_position = &(list[2]);
1180 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1181 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1183 xy = *list_position;
1186 vertexes[0] = vertexes[1];
1188 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1189 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1191 enhancement_disable();
1192 render_line(psx_gpu, vertexes, current_command, list[0], 0);
1193 enhancement_enable();
1194 render_line(psx_gpu, vertexes, current_command, list[0], 1);
1199 if(list_position >= list_end)
1201 current_command = (u32)-1;
1205 xy = *list_position;
1206 if((xy & 0xF000F000) == 0x50005000)
1210 command_length += (num_vertexes - 2);
1216 vertexes[0].r = list[0] & 0xFF;
1217 vertexes[0].g = (list[0] >> 8) & 0xFF;
1218 vertexes[0].b = (list[0] >> 16) & 0xFF;
1219 vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
1220 vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
1222 vertexes[1].r = list[2] & 0xFF;
1223 vertexes[1].g = (list[2] >> 8) & 0xFF;
1224 vertexes[1].b = (list[2] >> 16) & 0xFF;
1225 vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
1226 vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
1228 render_line(psx_gpu, vertexes, current_command, 0, 0);
1229 enhancement_enable();
1230 render_line(psx_gpu, vertexes, current_command, 0, 1);
1236 u32 num_vertexes = 1;
1237 u32 *list_position = &(list[2]);
1238 u32 color = list[0];
1241 vertexes[1].r = color & 0xFF;
1242 vertexes[1].g = (color >> 8) & 0xFF;
1243 vertexes[1].b = (color >> 16) & 0xFF;
1244 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1245 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1247 color = list_position[0];
1250 xy = list_position[1];
1252 vertexes[0] = vertexes[1];
1254 vertexes[1].r = color & 0xFF;
1255 vertexes[1].g = (color >> 8) & 0xFF;
1256 vertexes[1].b = (color >> 16) & 0xFF;
1257 vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
1258 vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
1260 enhancement_disable();
1261 render_line(psx_gpu, vertexes, current_command, 0, 0);
1262 enhancement_enable();
1263 render_line(psx_gpu, vertexes, current_command, 0, 1);
1268 if(list_position >= list_end)
1270 current_command = (u32)-1;
1274 color = list_position[0];
1275 if((color & 0xF000F000) == 0x50005000)
1279 command_length += ((num_vertexes - 2) * 2);
1285 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1286 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1287 u32 width = list_s16[4] & 0x3FF;
1288 u32 height = list_s16[5] & 0x1FF;
1290 render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
1291 do_sprite_enhanced(psx_gpu, x, y, 0, 0, width, height, list[0]);
1297 u32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1298 u32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1300 u8 v = list_s16[4] >> 8;
1301 u32 width = list_s16[6] & 0x3FF;
1302 u32 height = list_s16[7] & 0x1FF;
1304 set_clut(psx_gpu, list_s16[5]);
1306 render_sprite(psx_gpu, x, y, u, v, width, height,
1307 current_command, list[0]);
1308 do_sprite_enhanced(psx_gpu, x, y, u, v, width, height, list[0]);
1317 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1318 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1320 render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
1321 do_sprite_enhanced(psx_gpu, x, y, 0, 0, 1, 1, list[0]);
1330 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1331 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1333 render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
1334 do_sprite_enhanced(psx_gpu, x, y, 0, 0, 8, 8, list[0]);
1343 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1344 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1346 u8 v = list_s16[4] >> 8;
1348 set_clut(psx_gpu, list_s16[5]);
1350 render_sprite(psx_gpu, x, y, u, v, 8, 8,
1351 current_command, list[0]);
1352 do_sprite_enhanced(psx_gpu, x, y, u, v, 8, 8, list[0]);
1361 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1362 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1364 render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
1365 do_sprite_enhanced(psx_gpu, x, y, 0, 0, 16, 16, list[0]);
1374 s32 x = sign_extend_11bit(list_s16[2] + psx_gpu->offset_x);
1375 s32 y = sign_extend_11bit(list_s16[3] + psx_gpu->offset_y);
1377 u8 v = list_s16[4] >> 8;
1379 set_clut(psx_gpu, list_s16[5]);
1381 render_sprite(psx_gpu, x, y, u, v, 16, 16, current_command, list[0]);
1382 do_sprite_enhanced(psx_gpu, x, y, u, v, 16, 16, list[0]);
1386 case 0x80: // vid -> vid
1388 u32 sx = list_s16[2] & 0x3FF;
1389 u32 sy = list_s16[3] & 0x1FF;
1390 u32 dx = list_s16[4] & 0x3FF;
1391 u32 dy = list_s16[5] & 0x1FF;
1392 u32 w = ((list_s16[6] - 1) & 0x3FF) + 1;
1393 u32 h = ((list_s16[7] - 1) & 0x1FF) + 1;
1396 if (sx == dx && sy == dy && psx_gpu->mask_msb == 0)
1399 render_block_move(psx_gpu, sx, sy, dx, dy, w, h);
1402 sx = sx & ~7; // FIXME?
1406 buf = select_enhancement_buf_ptr(psx_gpu, dx / 2);
1407 scale2x_tiles8(buf + dy * 1024 + dx,
1408 psx_gpu->vram_ptr + sy * 1024 + sx, w, h);
1412 case 0xA0: // sys -> vid
1413 case 0xC0: // vid -> sys
1417 set_texture(psx_gpu, list[0]);
1419 if(list[0] & (1 << 9))
1420 psx_gpu->render_state_base |= RENDER_STATE_DITHER;
1422 psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
1424 psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
1431 u32 texture_window_settings = list[0];
1432 u32 tmp, x, y, w, h;
1434 if(texture_window_settings != psx_gpu->texture_window_settings)
1436 tmp = (texture_window_settings & 0x1F) | 0x20;
1437 for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
1439 tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
1440 for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
1442 tmp = 32 - (w >> 3);
1443 x = ((texture_window_settings >> 10) & tmp) << 3;
1445 tmp = 32 - (h >> 3);
1446 y = ((texture_window_settings >> 15) & tmp) << 3;
1448 flush_render_block_buffer(psx_gpu);
1450 psx_gpu->texture_window_settings = texture_window_settings;
1451 psx_gpu->texture_window_x = x;
1452 psx_gpu->texture_window_y = y;
1453 psx_gpu->texture_mask_width = w - 1;
1454 psx_gpu->texture_mask_height = h - 1;
1456 update_texture_ptr(psx_gpu);
1464 s16 viewport_start_x = list[0] & 0x3FF;
1465 s16 viewport_start_y = (list[0] >> 10) & 0x1FF;
1469 if(viewport_start_x == psx_gpu->viewport_start_x &&
1470 viewport_start_y == psx_gpu->viewport_start_y)
1474 psx_gpu->viewport_start_x = viewport_start_x;
1475 psx_gpu->viewport_start_y = viewport_start_y;
1476 psx_gpu->saved_viewport_start_x = viewport_start_x;
1477 psx_gpu->saved_viewport_start_y = viewport_start_y;
1479 w = (u32)psx_gpu->viewport_end_x - (u32)viewport_start_x + 1;
1480 d = psx_gpu->enhancement_x_threshold - w;
1481 if(-16 <= d && d <= 16)
1483 update_enhancement_buf_table_from_x(psx_gpu,
1484 viewport_start_x, w);
1486 select_enhancement_buf(psx_gpu);
1488 #ifdef TEXTURE_CACHE_4BPP
1489 psx_gpu->viewport_mask =
1490 texture_region_mask(psx_gpu->viewport_start_x,
1491 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1492 psx_gpu->viewport_end_y);
1500 s16 viewport_end_x = list[0] & 0x3FF;
1501 s16 viewport_end_y = (list[0] >> 10) & 0x1FF;
1505 if(viewport_end_x == psx_gpu->viewport_end_x &&
1506 viewport_end_y == psx_gpu->viewport_end_y)
1511 psx_gpu->viewport_end_x = viewport_end_x;
1512 psx_gpu->viewport_end_y = viewport_end_y;
1513 psx_gpu->saved_viewport_end_x = viewport_end_x;
1514 psx_gpu->saved_viewport_end_y = viewport_end_y;
1516 w = (u32)viewport_end_x - (u32)psx_gpu->viewport_start_x + 1;
1517 d = psx_gpu->enhancement_x_threshold - w;
1518 if(-16 <= d && d <= 16)
1520 update_enhancement_buf_table_from_x(psx_gpu,
1521 psx_gpu->viewport_start_x, w);
1523 select_enhancement_buf(psx_gpu);
1525 #ifdef TEXTURE_CACHE_4BPP
1526 psx_gpu->viewport_mask =
1527 texture_region_mask(psx_gpu->viewport_start_x,
1528 psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
1529 psx_gpu->viewport_end_y);
1537 s32 offset_x = list[0] << 21;
1538 s32 offset_y = list[0] << 10;
1539 psx_gpu->offset_x = offset_x >> 21;
1540 psx_gpu->offset_y = offset_y >> 21;
1548 u32 mask_settings = list[0];
1549 u16 mask_msb = mask_settings << 15;
1552 psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
1554 psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
1556 if(mask_msb != psx_gpu->mask_msb)
1558 flush_render_block_buffer(psx_gpu);
1559 psx_gpu->mask_msb = mask_msb;
1571 enhancement_disable();
1574 if (last_command != NULL)
1575 *last_command = current_command;
1576 return list - list_start;
1581 // vim:shiftwidth=2:expandtab