1 /**************************************************************************
3 * Copyright 2009 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "util/u_math.h"
29 #include "util/u_memory.h"
30 #include "util/u_inlines.h"
31 #include "util/u_simple_list.h"
32 #include "util/u_surface.h"
34 #include "lp_scene_queue.h"
39 lp_scene_create( struct pipe_context *pipe,
40 struct lp_scene_queue *queue )
43 struct lp_scene *scene = CALLOC_STRUCT(lp_scene);
48 scene->empty_queue = queue;
50 for (i = 0; i < TILES_X; i++) {
51 for (j = 0; j < TILES_Y; j++) {
52 struct cmd_bin *bin = lp_scene_get_bin(scene, i, j);
53 bin->commands.head = bin->commands.tail = CALLOC_STRUCT(cmd_block);
58 scene->data.tail = CALLOC_STRUCT(data_block);
60 make_empty_list(&scene->textures);
62 pipe_mutex_init(scene->mutex);
69 * Free all data associated with the given scene, and free(scene).
72 lp_scene_destroy(struct lp_scene *scene)
76 lp_scene_reset(scene);
78 for (i = 0; i < TILES_X; i++)
79 for (j = 0; j < TILES_Y; j++) {
80 struct cmd_bin *bin = lp_scene_get_bin(scene, i, j);
81 assert(bin->commands.head == bin->commands.tail);
82 FREE(bin->commands.head);
83 bin->commands.head = NULL;
84 bin->commands.tail = NULL;
87 FREE(scene->data.head);
88 scene->data.head = NULL;
90 pipe_mutex_destroy(scene->mutex);
97 * Check if the scene's bins are all empty.
98 * For debugging purposes.
101 lp_scene_is_empty(struct lp_scene *scene )
105 for (y = 0; y < TILES_Y; y++) {
106 for (x = 0; x < TILES_X; x++) {
107 const struct cmd_bin *bin = lp_scene_get_bin(scene, x, y);
108 const struct cmd_block_list *list = &bin->commands;
109 if (list->head != list->tail || list->head->count > 0) {
118 /* Free data for one particular bin. May be called from the
119 * rasterizer thread(s).
122 lp_scene_bin_reset(struct lp_scene *scene, unsigned x, unsigned y)
124 struct cmd_bin *bin = lp_scene_get_bin(scene, x, y);
125 struct cmd_block_list *list = &bin->commands;
126 struct cmd_block *block;
127 struct cmd_block *tmp;
132 for (block = list->head; block != list->tail; block = tmp) {
137 assert(list->tail->next == NULL);
138 list->head = list->tail;
139 list->head->count = 0;
144 * Free all the temporary data in a scene. May be called from the
145 * rasterizer thread(s).
148 lp_scene_reset(struct lp_scene *scene )
152 /* Free all but last binner command lists:
154 for (i = 0; i < scene->tiles_x; i++) {
155 for (j = 0; j < scene->tiles_y; j++) {
156 lp_scene_bin_reset(scene, i, j);
160 assert(lp_scene_is_empty(scene));
162 /* Free all but last binned data block:
165 struct data_block_list *list = &scene->data;
166 struct data_block *block, *tmp;
168 for (block = list->head; block != list->tail; block = tmp) {
173 assert(list->tail->next == NULL);
174 list->head = list->tail;
175 list->head->used = 0;
178 /* Release texture refs
181 struct texture_ref *ref, *next, *ref_list = &scene->textures;
182 for (ref = ref_list->next; ref != ref_list; ref = next) {
183 next = next_elem(ref);
184 pipe_texture_reference(&ref->texture, NULL);
187 make_empty_list(ref_list);
197 lp_bin_new_cmd_block( struct cmd_block_list *list )
199 struct cmd_block *block = MALLOC_STRUCT(cmd_block);
200 list->tail->next = block;
208 lp_bin_new_data_block( struct data_block_list *list )
210 struct data_block *block = MALLOC_STRUCT(data_block);
211 list->tail->next = block;
218 /** Return number of bytes used for all bin data within a scene */
220 lp_scene_data_size( const struct lp_scene *scene )
223 const struct data_block *block;
224 for (block = scene->data.head; block; block = block->next) {
231 /** Return number of bytes used for a single bin */
233 lp_scene_bin_size( const struct lp_scene *scene, unsigned x, unsigned y )
235 struct cmd_bin *bin = lp_scene_get_bin((struct lp_scene *) scene, x, y);
236 const struct cmd_block *cmd;
238 for (cmd = bin->commands.head; cmd; cmd = cmd->next) {
239 size += (cmd->count *
240 (sizeof(lp_rast_cmd) + sizeof(union lp_rast_cmd_arg)));
247 * Add a reference to a texture by the scene.
250 lp_scene_texture_reference( struct lp_scene *scene,
251 struct pipe_texture *texture )
253 struct texture_ref *ref = CALLOC_STRUCT(texture_ref);
255 struct texture_ref *ref_list = &scene->textures;
256 pipe_texture_reference(&ref->texture, texture);
257 insert_at_tail(ref_list, ref);
263 * Does this scene have a reference to the given texture?
266 lp_scene_is_texture_referenced( const struct lp_scene *scene,
267 const struct pipe_texture *texture )
269 const struct texture_ref *ref_list = &scene->textures;
270 const struct texture_ref *ref;
271 foreach (ref, ref_list) {
272 if (ref->texture == texture)
280 * Return last command in the bin
283 lp_get_last_command( const struct cmd_bin *bin )
285 const struct cmd_block *tail = bin->commands.tail;
286 const unsigned i = tail->count;
288 return tail->cmd[i - 1];
295 * Replace the arg of the last command in the bin.
298 lp_replace_last_command_arg( struct cmd_bin *bin,
299 const union lp_rast_cmd_arg arg )
301 struct cmd_block *tail = bin->commands.tail;
302 const unsigned i = tail->count;
304 tail->arg[i - 1] = arg;
310 * Put a state-change command into all bins.
311 * If we find that the last command in a bin was also a state-change
312 * command, we can simply replace that one with the new one.
315 lp_scene_bin_state_command( struct lp_scene *scene,
317 const union lp_rast_cmd_arg arg )
320 for (i = 0; i < scene->tiles_x; i++) {
321 for (j = 0; j < scene->tiles_y; j++) {
322 struct cmd_bin *bin = lp_scene_get_bin(scene, i, j);
323 lp_rast_cmd last_cmd = lp_get_last_command(bin);
324 if (last_cmd == cmd) {
325 lp_replace_last_command_arg(bin, arg);
328 lp_scene_bin_command( scene, i, j, cmd, arg );
335 /** advance curr_x,y to the next bin */
337 next_bin(struct lp_scene *scene)
340 if (scene->curr_x >= scene->tiles_x) {
344 if (scene->curr_y >= scene->tiles_y) {
353 lp_scene_bin_iter_begin( struct lp_scene *scene )
355 scene->curr_x = scene->curr_y = -1;
360 * Return pointer to next bin to be rendered.
361 * The lp_scene::curr_x and ::curr_y fields will be advanced.
362 * Multiple rendering threads will call this function to get a chunk
363 * of work (a bin) to work on.
366 lp_scene_bin_iter_next( struct lp_scene *scene, int *bin_x, int *bin_y )
368 struct cmd_bin *bin = NULL;
370 pipe_mutex_lock(scene->mutex);
372 if (scene->curr_x < 0) {
377 else if (!next_bin(scene)) {
378 /* no more bins left */
382 bin = lp_scene_get_bin(scene, scene->curr_x, scene->curr_y);
383 *bin_x = scene->curr_x;
384 *bin_y = scene->curr_y;
387 /*printf("return bin %p at %d, %d\n", (void *) bin, *bin_x, *bin_y);*/
388 pipe_mutex_unlock(scene->mutex);
394 * Prepare this scene for the rasterizer.
395 * Map the framebuffer surfaces. Initialize the 'rast' state.
398 lp_scene_map_buffers( struct lp_scene *scene )
400 struct pipe_surface *cbuf, *zsbuf;
403 LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
406 /* Map all color buffers
408 for (i = 0; i < scene->fb.nr_cbufs; i++) {
409 cbuf = scene->fb.cbufs[i];
411 scene->cbuf_map[i] = llvmpipe_texture_map(cbuf->texture,
415 if (!scene->cbuf_map[i])
422 zsbuf = scene->fb.zsbuf;
424 scene->zsbuf_map = llvmpipe_texture_map(zsbuf->texture,
428 if (!scene->zsbuf_map)
435 /* Unmap and release transfers?
443 * Called after rasterizer as finished rasterizing a scene.
445 * We want to call this from the pipe_context's current thread to
446 * avoid having to have mutexes on the transfer functions.
449 lp_scene_unmap_buffers( struct lp_scene *scene )
453 for (i = 0; i < scene->fb.nr_cbufs; i++) {
454 if (scene->cbuf_map[i]) {
455 struct pipe_surface *cbuf = scene->fb.cbufs[i];
456 llvmpipe_texture_unmap(cbuf->texture,
460 scene->cbuf_map[i] = NULL;
464 if (scene->zsbuf_map) {
465 struct pipe_surface *zsbuf = scene->fb.zsbuf;
466 llvmpipe_texture_unmap(zsbuf->texture,
470 scene->zsbuf_map = NULL;
473 util_unreference_framebuffer_state( &scene->fb );
477 void lp_scene_begin_binning( struct lp_scene *scene,
478 struct pipe_framebuffer_state *fb )
480 assert(lp_scene_is_empty(scene));
482 util_copy_framebuffer_state(&scene->fb, fb);
484 scene->tiles_x = align(fb->width, TILE_SIZE) / TILE_SIZE;
485 scene->tiles_y = align(fb->height, TILE_SIZE) / TILE_SIZE;
487 assert(scene->tiles_x <= TILES_X);
488 assert(scene->tiles_y <= TILES_Y);
492 void lp_scene_rasterize( struct lp_scene *scene,
493 struct lp_rasterizer *rast,
494 boolean write_depth )
498 debug_printf("rasterize scene:\n");
499 debug_printf(" data size: %u\n", lp_scene_data_size(scene));
500 for (y = 0; y < scene->tiles_y; y++) {
501 for (x = 0; x < scene->tiles_x; x++) {
502 debug_printf(" bin %u, %u size: %u\n", x, y,
503 lp_scene_bin_size(scene, x, y));
509 scene->write_depth = (scene->fb.zsbuf != NULL &&
512 lp_scene_map_buffers( scene );
514 /* Enqueue the scene for rasterization, then immediately wait for
517 lp_rast_queue_scene( rast, scene );
519 /* Currently just wait for the rasterizer to finish. Some
520 * threading interactions need to be worked out, particularly once
521 * transfers become per-context:
523 lp_rast_finish( rast );
524 lp_scene_unmap_buffers( scene );
525 lp_scene_enqueue( scene->empty_queue, scene );