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;
155 //LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
157 for (i = 0; i < scene->fb.nr_cbufs; i++) {
158 struct pipe_surface *cbuf = scene->fb.cbufs[i];
159 if (llvmpipe_resource_is_texture(cbuf->texture)) {
160 scene->cbufs[i].stride = llvmpipe_resource_stride(cbuf->texture,
163 scene->cbufs[i].map = llvmpipe_resource_map(cbuf->texture,
165 cbuf->u.tex.first_layer,
166 LP_TEX_USAGE_READ_WRITE);
169 struct llvmpipe_resource *lpr = llvmpipe_resource(cbuf->texture);
170 unsigned pixstride = util_format_get_blocksize(cbuf->format);
171 scene->cbufs[i].stride = cbuf->texture->width0;
172 scene->cbufs[i].map = lpr->data;
173 scene->cbufs[i].map += cbuf->u.buf.first_element * pixstride;
178 struct pipe_surface *zsbuf = scene->fb.zsbuf;
179 scene->zsbuf.stride = llvmpipe_resource_stride(zsbuf->texture, zsbuf->u.tex.level);
180 scene->zsbuf.blocksize =
181 util_format_get_blocksize(zsbuf->texture->format);
183 scene->zsbuf.map = llvmpipe_resource_map(zsbuf->texture,
185 zsbuf->u.tex.first_layer,
186 LP_TEX_USAGE_READ_WRITE);
194 * Free all the temporary data in a scene.
197 lp_scene_end_rasterization(struct lp_scene *scene )
201 /* Unmap color buffers */
202 for (i = 0; i < scene->fb.nr_cbufs; i++) {
203 if (scene->cbufs[i].map) {
204 struct pipe_surface *cbuf = scene->fb.cbufs[i];
205 if (llvmpipe_resource_is_texture(cbuf->texture)) {
206 llvmpipe_resource_unmap(cbuf->texture,
208 cbuf->u.tex.first_layer);
210 scene->cbufs[i].map = NULL;
214 /* Unmap z/stencil buffer */
215 if (scene->zsbuf.map) {
216 struct pipe_surface *zsbuf = scene->fb.zsbuf;
217 llvmpipe_resource_unmap(zsbuf->texture,
219 zsbuf->u.tex.first_layer);
220 scene->zsbuf.map = NULL;
223 /* Reset all command lists:
225 for (i = 0; i < scene->tiles_x; i++) {
226 for (j = 0; j < scene->tiles_y; j++) {
227 struct cmd_bin *bin = lp_scene_get_bin(scene, i, j);
230 bin->last_state = NULL;
234 /* If there are any bins which weren't cleared by the loop above,
235 * they will be caught (on debug builds at least) by this assert:
237 assert(lp_scene_is_empty(scene));
239 /* Decrement texture ref counts
242 struct resource_ref *ref;
245 for (ref = scene->resources; ref; ref = ref->next) {
246 for (i = 0; i < ref->count; i++) {
247 if (LP_DEBUG & DEBUG_SETUP)
248 debug_printf("resource %d: %p %dx%d sz %d\n",
250 (void *) ref->resource[i],
251 ref->resource[i]->width0,
252 ref->resource[i]->height0,
253 llvmpipe_resource_size(ref->resource[i]));
255 pipe_resource_reference(&ref->resource[i], NULL);
259 if (LP_DEBUG & DEBUG_SETUP)
260 debug_printf("scene %d resources, sz %d\n",
261 j, scene->resource_reference_size);
264 /* Free all scene data blocks:
267 struct data_block_list *list = &scene->data;
268 struct data_block *block, *tmp;
270 for (block = list->head->next; block; block = tmp) {
275 list->head->next = NULL;
276 list->head->used = 0;
279 lp_fence_reference(&scene->fence, NULL);
281 scene->resources = NULL;
282 scene->scene_size = 0;
283 scene->resource_reference_size = 0;
285 scene->has_depthstencil_clear = FALSE;
286 scene->alloc_failed = FALSE;
288 util_unreference_framebuffer_state( &scene->fb );
297 lp_scene_new_cmd_block( struct lp_scene *scene,
298 struct cmd_bin *bin )
300 struct cmd_block *block = lp_scene_alloc(scene, sizeof(struct cmd_block));
303 bin->tail->next = block;
310 //memset(block, 0, sizeof *block);
319 lp_scene_new_data_block( struct lp_scene *scene )
321 if (scene->scene_size + DATA_BLOCK_SIZE > LP_SCENE_MAX_SIZE) {
322 if (0) debug_printf("%s: failed\n", __FUNCTION__);
323 scene->alloc_failed = TRUE;
327 struct data_block *block = MALLOC_STRUCT(data_block);
331 scene->scene_size += sizeof *block;
334 block->next = scene->data.head;
335 scene->data.head = block;
343 * Return number of bytes used for all bin data within a scene.
344 * This does not include resources (textures) referenced by the scene.
347 lp_scene_data_size( const struct lp_scene *scene )
350 const struct data_block *block;
351 for (block = scene->data.head; block; block = block->next) {
360 * Add a reference to a resource by the scene.
363 lp_scene_add_resource_reference(struct lp_scene *scene,
364 struct pipe_resource *resource,
365 boolean initializing_scene)
367 struct resource_ref *ref, **last = &scene->resources;
370 /* Look at existing resource blocks:
372 for (ref = scene->resources; ref; ref = ref->next) {
375 /* Search for this resource:
377 for (i = 0; i < ref->count; i++)
378 if (ref->resource[i] == resource)
381 if (ref->count < RESOURCE_REF_SZ) {
382 /* If the block is half-empty, then append the reference here.
388 /* Create a new block if no half-empty block was found.
391 assert(*last == NULL);
392 *last = lp_scene_alloc(scene, sizeof *ref);
397 memset(ref, 0, sizeof *ref);
400 /* Append the reference to the reference block.
402 pipe_resource_reference(&ref->resource[ref->count++], resource);
403 scene->resource_reference_size += llvmpipe_resource_size(resource);
405 /* Heuristic to advise scene flushes. This isn't helpful in the
406 * initial setup of the scene, but after that point flush on the
407 * next resource added which exceeds 64MB in referenced texture
410 if (!initializing_scene &&
411 scene->resource_reference_size >= LP_SCENE_MAX_RESOURCE_SIZE)
419 * Does this scene have a reference to the given resource?
422 lp_scene_is_resource_referenced(const struct lp_scene *scene,
423 const struct pipe_resource *resource)
425 const struct resource_ref *ref;
428 for (ref = scene->resources; ref; ref = ref->next) {
429 for (i = 0; i < ref->count; i++)
430 if (ref->resource[i] == resource)
440 /** advance curr_x,y to the next bin */
442 next_bin(struct lp_scene *scene)
445 if (scene->curr_x >= scene->tiles_x) {
449 if (scene->curr_y >= scene->tiles_y) {
458 lp_scene_bin_iter_begin( struct lp_scene *scene )
460 scene->curr_x = scene->curr_y = -1;
465 * Return pointer to next bin to be rendered.
466 * The lp_scene::curr_x and ::curr_y fields will be advanced.
467 * Multiple rendering threads will call this function to get a chunk
468 * of work (a bin) to work on.
471 lp_scene_bin_iter_next( struct lp_scene *scene , int *x, int *y)
473 struct cmd_bin *bin = NULL;
475 pipe_mutex_lock(scene->mutex);
477 if (scene->curr_x < 0) {
482 else if (!next_bin(scene)) {
483 /* no more bins left */
487 bin = lp_scene_get_bin(scene, scene->curr_x, scene->curr_y);
492 /*printf("return bin %p at %d, %d\n", (void *) bin, *bin_x, *bin_y);*/
493 pipe_mutex_unlock(scene->mutex);
498 void lp_scene_begin_binning( struct lp_scene *scene,
499 struct pipe_framebuffer_state *fb, boolean discard )
501 assert(lp_scene_is_empty(scene));
503 scene->discard = discard;
504 util_copy_framebuffer_state(&scene->fb, fb);
506 scene->tiles_x = align(fb->width, TILE_SIZE) / TILE_SIZE;
507 scene->tiles_y = align(fb->height, TILE_SIZE) / TILE_SIZE;
509 assert(scene->tiles_x <= TILES_X);
510 assert(scene->tiles_y <= TILES_Y);
514 void lp_scene_end_binning( struct lp_scene *scene )
516 if (LP_DEBUG & DEBUG_SCENE) {
517 debug_printf("rasterize scene:\n");
518 debug_printf(" scene_size: %u\n",
520 debug_printf(" data size: %u\n",
521 lp_scene_data_size(scene));
524 lp_debug_bins( scene );