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_framebuffer.h"
29 #include "util/u_math.h"
30 #include "util/u_memory.h"
31 #include "util/u_inlines.h"
32 #include "util/u_simple_list.h"
33 #include "util/u_format.h"
39 #define RESOURCE_REF_SZ 32
41 /** List of resource references */
43 struct pipe_resource *resource[RESOURCE_REF_SZ];
45 struct resource_ref *next;
50 * Create a new scene object.
51 * \param queue the queue to put newly rendered/emptied scenes into
54 lp_scene_create( struct pipe_context *pipe )
56 struct lp_scene *scene = CALLOC_STRUCT(lp_scene);
63 CALLOC_STRUCT(data_block);
65 pipe_mutex_init(scene->mutex);
68 /* Do some scene limit sanity checks here */
70 size_t maxBins = TILES_X * TILES_Y;
71 size_t maxCommandBytes = sizeof(struct cmd_block) * maxBins;
72 size_t maxCommandPlusData = maxCommandBytes + DATA_BLOCK_SIZE;
73 /* We'll need at least one command block per bin. Make sure that's
74 * less than the max allowed scene size.
76 assert(maxCommandBytes < LP_SCENE_MAX_SIZE);
77 /* We'll also need space for at least one other data block */
78 assert(maxCommandPlusData <= LP_SCENE_MAX_SIZE);
87 * Free all data associated with the given scene, and the scene itself.
90 lp_scene_destroy(struct lp_scene *scene)
92 lp_fence_reference(&scene->fence, NULL);
93 pipe_mutex_destroy(scene->mutex);
94 assert(scene->data.head->next == NULL);
95 FREE(scene->data.head);
101 * Check if the scene's bins are all empty.
102 * For debugging purposes.
105 lp_scene_is_empty(struct lp_scene *scene )
109 for (y = 0; y < TILES_Y; y++) {
110 for (x = 0; x < TILES_X; x++) {
111 const struct cmd_bin *bin = lp_scene_get_bin(scene, x, y);
121 /* Returns true if there has ever been a failed allocation attempt in
122 * this scene. Used in triangle emit to avoid having to check success
126 lp_scene_is_oom(struct lp_scene *scene)
128 return scene->alloc_failed;
132 /* Remove all commands from a bin. Tries to reuse some of the memory
133 * allocated to the bin, however.
136 lp_scene_bin_reset(struct lp_scene *scene, unsigned x, unsigned y)
138 struct cmd_bin *bin = lp_scene_get_bin(scene, x, y);
140 bin->last_state = NULL;
141 bin->head = bin->tail;
143 bin->tail->next = NULL;
144 bin->tail->count = 0;
150 lp_scene_begin_rasterization(struct lp_scene *scene)
152 const struct pipe_framebuffer_state *fb = &scene->fb;
154 unsigned max_layer = ~0;
156 //LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
158 for (i = 0; i < scene->fb.nr_cbufs; i++) {
159 struct pipe_surface *cbuf = scene->fb.cbufs[i];
160 if (llvmpipe_resource_is_texture(cbuf->texture)) {
161 scene->cbufs[i].stride = llvmpipe_resource_stride(cbuf->texture,
163 scene->cbufs[i].layer_stride = llvmpipe_layer_stride(cbuf->texture,
165 max_layer = MIN2(max_layer, cbuf->u.tex.last_layer - cbuf->u.tex.first_layer);
167 scene->cbufs[i].map = llvmpipe_resource_map(cbuf->texture,
169 cbuf->u.tex.first_layer,
170 LP_TEX_USAGE_READ_WRITE);
173 struct llvmpipe_resource *lpr = llvmpipe_resource(cbuf->texture);
174 unsigned pixstride = util_format_get_blocksize(cbuf->format);
175 scene->cbufs[i].stride = cbuf->texture->width0;
178 scene->cbufs[i].map = lpr->data;
179 scene->cbufs[i].map += cbuf->u.buf.first_element * pixstride;
184 struct pipe_surface *zsbuf = scene->fb.zsbuf;
185 scene->zsbuf.stride = llvmpipe_resource_stride(zsbuf->texture, zsbuf->u.tex.level);
186 scene->zsbuf.layer_stride = llvmpipe_layer_stride(zsbuf->texture, zsbuf->u.tex.level);
187 max_layer = MIN2(max_layer, zsbuf->u.tex.last_layer - zsbuf->u.tex.first_layer);
189 scene->zsbuf.map = llvmpipe_resource_map(zsbuf->texture,
191 zsbuf->u.tex.first_layer,
192 LP_TEX_USAGE_READ_WRITE);
195 scene->fb_max_layer = max_layer;
202 * Free all the temporary data in a scene.
205 lp_scene_end_rasterization(struct lp_scene *scene )
209 /* Unmap color buffers */
210 for (i = 0; i < scene->fb.nr_cbufs; i++) {
211 if (scene->cbufs[i].map) {
212 struct pipe_surface *cbuf = scene->fb.cbufs[i];
213 if (llvmpipe_resource_is_texture(cbuf->texture)) {
214 llvmpipe_resource_unmap(cbuf->texture,
216 cbuf->u.tex.first_layer);
218 scene->cbufs[i].map = NULL;
222 /* Unmap z/stencil buffer */
223 if (scene->zsbuf.map) {
224 struct pipe_surface *zsbuf = scene->fb.zsbuf;
225 llvmpipe_resource_unmap(zsbuf->texture,
227 zsbuf->u.tex.first_layer);
228 scene->zsbuf.map = NULL;
231 /* Reset all command lists:
233 for (i = 0; i < scene->tiles_x; i++) {
234 for (j = 0; j < scene->tiles_y; j++) {
235 struct cmd_bin *bin = lp_scene_get_bin(scene, i, j);
238 bin->last_state = NULL;
242 /* If there are any bins which weren't cleared by the loop above,
243 * they will be caught (on debug builds at least) by this assert:
245 assert(lp_scene_is_empty(scene));
247 /* Decrement texture ref counts
250 struct resource_ref *ref;
253 for (ref = scene->resources; ref; ref = ref->next) {
254 for (i = 0; i < ref->count; i++) {
255 if (LP_DEBUG & DEBUG_SETUP)
256 debug_printf("resource %d: %p %dx%d sz %d\n",
258 (void *) ref->resource[i],
259 ref->resource[i]->width0,
260 ref->resource[i]->height0,
261 llvmpipe_resource_size(ref->resource[i]));
263 pipe_resource_reference(&ref->resource[i], NULL);
267 if (LP_DEBUG & DEBUG_SETUP)
268 debug_printf("scene %d resources, sz %d\n",
269 j, scene->resource_reference_size);
272 /* Free all scene data blocks:
275 struct data_block_list *list = &scene->data;
276 struct data_block *block, *tmp;
278 for (block = list->head->next; block; block = tmp) {
283 list->head->next = NULL;
284 list->head->used = 0;
287 lp_fence_reference(&scene->fence, NULL);
289 scene->resources = NULL;
290 scene->scene_size = 0;
291 scene->resource_reference_size = 0;
293 scene->has_depthstencil_clear = FALSE;
294 scene->alloc_failed = FALSE;
296 util_unreference_framebuffer_state( &scene->fb );
305 lp_scene_new_cmd_block( struct lp_scene *scene,
306 struct cmd_bin *bin )
308 struct cmd_block *block = lp_scene_alloc(scene, sizeof(struct cmd_block));
311 bin->tail->next = block;
318 //memset(block, 0, sizeof *block);
327 lp_scene_new_data_block( struct lp_scene *scene )
329 if (scene->scene_size + DATA_BLOCK_SIZE > LP_SCENE_MAX_SIZE) {
330 if (0) debug_printf("%s: failed\n", __FUNCTION__);
331 scene->alloc_failed = TRUE;
335 struct data_block *block = MALLOC_STRUCT(data_block);
339 scene->scene_size += sizeof *block;
342 block->next = scene->data.head;
343 scene->data.head = block;
351 * Return number of bytes used for all bin data within a scene.
352 * This does not include resources (textures) referenced by the scene.
355 lp_scene_data_size( const struct lp_scene *scene )
358 const struct data_block *block;
359 for (block = scene->data.head; block; block = block->next) {
368 * Add a reference to a resource by the scene.
371 lp_scene_add_resource_reference(struct lp_scene *scene,
372 struct pipe_resource *resource,
373 boolean initializing_scene)
375 struct resource_ref *ref, **last = &scene->resources;
378 /* Look at existing resource blocks:
380 for (ref = scene->resources; ref; ref = ref->next) {
383 /* Search for this resource:
385 for (i = 0; i < ref->count; i++)
386 if (ref->resource[i] == resource)
389 if (ref->count < RESOURCE_REF_SZ) {
390 /* If the block is half-empty, then append the reference here.
396 /* Create a new block if no half-empty block was found.
399 assert(*last == NULL);
400 *last = lp_scene_alloc(scene, sizeof *ref);
405 memset(ref, 0, sizeof *ref);
408 /* Append the reference to the reference block.
410 pipe_resource_reference(&ref->resource[ref->count++], resource);
411 scene->resource_reference_size += llvmpipe_resource_size(resource);
413 /* Heuristic to advise scene flushes. This isn't helpful in the
414 * initial setup of the scene, but after that point flush on the
415 * next resource added which exceeds 64MB in referenced texture
418 if (!initializing_scene &&
419 scene->resource_reference_size >= LP_SCENE_MAX_RESOURCE_SIZE)
427 * Does this scene have a reference to the given resource?
430 lp_scene_is_resource_referenced(const struct lp_scene *scene,
431 const struct pipe_resource *resource)
433 const struct resource_ref *ref;
436 for (ref = scene->resources; ref; ref = ref->next) {
437 for (i = 0; i < ref->count; i++)
438 if (ref->resource[i] == resource)
448 /** advance curr_x,y to the next bin */
450 next_bin(struct lp_scene *scene)
453 if (scene->curr_x >= scene->tiles_x) {
457 if (scene->curr_y >= scene->tiles_y) {
466 lp_scene_bin_iter_begin( struct lp_scene *scene )
468 scene->curr_x = scene->curr_y = -1;
473 * Return pointer to next bin to be rendered.
474 * The lp_scene::curr_x and ::curr_y fields will be advanced.
475 * Multiple rendering threads will call this function to get a chunk
476 * of work (a bin) to work on.
479 lp_scene_bin_iter_next( struct lp_scene *scene , int *x, int *y)
481 struct cmd_bin *bin = NULL;
483 pipe_mutex_lock(scene->mutex);
485 if (scene->curr_x < 0) {
490 else if (!next_bin(scene)) {
491 /* no more bins left */
495 bin = lp_scene_get_bin(scene, scene->curr_x, scene->curr_y);
500 /*printf("return bin %p at %d, %d\n", (void *) bin, *bin_x, *bin_y);*/
501 pipe_mutex_unlock(scene->mutex);
506 void lp_scene_begin_binning( struct lp_scene *scene,
507 struct pipe_framebuffer_state *fb, boolean discard )
509 assert(lp_scene_is_empty(scene));
511 scene->discard = discard;
512 util_copy_framebuffer_state(&scene->fb, fb);
514 scene->tiles_x = align(fb->width, TILE_SIZE) / TILE_SIZE;
515 scene->tiles_y = align(fb->height, TILE_SIZE) / TILE_SIZE;
517 assert(scene->tiles_x <= TILES_X);
518 assert(scene->tiles_y <= TILES_Y);
522 void lp_scene_end_binning( struct lp_scene *scene )
524 if (LP_DEBUG & DEBUG_SCENE) {
525 debug_printf("rasterize scene:\n");
526 debug_printf(" scene_size: %u\n",
528 debug_printf(" data size: %u\n",
529 lp_scene_data_size(scene));
532 lp_debug_bins( scene );