661 lines
18 KiB
C
661 lines
18 KiB
C
/**************************************************************************
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*
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* Copyright 2009 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "util/u_framebuffer.h"
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#include "util/u_math.h"
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#include "util/u_memory.h"
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#include "util/u_inlines.h"
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#include "util/format/u_format.h"
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#include "lp_scene.h"
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#include "lp_fence.h"
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#include "lp_debug.h"
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#include "lp_context.h"
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#include "lp_state_fs.h"
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#include "lp_setup_context.h"
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#define RESOURCE_REF_SZ 32
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/** List of resource references */
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struct resource_ref {
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struct pipe_resource *resource[RESOURCE_REF_SZ];
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int count;
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struct resource_ref *next;
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};
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#define SHADER_REF_SZ 32
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/** List of shader variant references */
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struct shader_ref {
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struct lp_fragment_shader_variant *variant[SHADER_REF_SZ];
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int count;
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struct shader_ref *next;
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};
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/**
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* Create a new scene object.
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* \param queue the queue to put newly rendered/emptied scenes into
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*/
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struct lp_scene *
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lp_scene_create(struct lp_setup_context *setup)
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{
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struct lp_scene *scene = slab_alloc_st(&setup->scene_slab);
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if (!scene)
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return NULL;
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memset(scene, 0, sizeof(struct lp_scene));
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scene->pipe = setup->pipe;
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scene->setup = setup;
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scene->data.head = &scene->data.first;
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(void) mtx_init(&scene->mutex, mtx_plain);
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#ifdef DEBUG
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/* Do some scene limit sanity checks here */
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{
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size_t maxBins = TILES_X * TILES_Y;
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size_t maxCommandBytes = sizeof(struct cmd_block) * maxBins;
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size_t maxCommandPlusData = maxCommandBytes + DATA_BLOCK_SIZE;
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/* We'll need at least one command block per bin. Make sure that's
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* less than the max allowed scene size.
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*/
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assert(maxCommandBytes < LP_SCENE_MAX_SIZE);
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/* We'll also need space for at least one other data block */
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assert(maxCommandPlusData <= LP_SCENE_MAX_SIZE);
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}
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#endif
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return scene;
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}
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/**
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* Free all data associated with the given scene, and the scene itself.
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*/
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void
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lp_scene_destroy(struct lp_scene *scene)
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{
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lp_scene_end_rasterization(scene);
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mtx_destroy(&scene->mutex);
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assert(scene->data.head == &scene->data.first);
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slab_free_st(&scene->setup->scene_slab, scene);
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}
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/**
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* Check if the scene's bins are all empty.
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* For debugging purposes.
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*/
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boolean
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lp_scene_is_empty(struct lp_scene *scene )
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{
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unsigned x, y;
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for (y = 0; y < scene->tiles_y; y++) {
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for (x = 0; x < scene->tiles_x; x++) {
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const struct cmd_bin *bin = lp_scene_get_bin(scene, x, y);
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if (bin->head) {
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return FALSE;
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}
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}
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}
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return TRUE;
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}
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/* Returns true if there has ever been a failed allocation attempt in
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* this scene. Used in triangle/rectangle emit to avoid having to
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* check success at each bin.
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*/
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boolean
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lp_scene_is_oom(struct lp_scene *scene)
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{
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return scene->alloc_failed;
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}
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/* Remove all commands from a bin. Tries to reuse some of the memory
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* allocated to the bin, however.
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*/
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void
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lp_scene_bin_reset(struct lp_scene *scene, unsigned x, unsigned y)
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{
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struct cmd_bin *bin = lp_scene_get_bin(scene, x, y);
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bin->last_state = NULL;
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bin->head = bin->tail;
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if (bin->tail) {
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bin->tail->next = NULL;
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bin->tail->count = 0;
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}
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}
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static void
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init_scene_texture(struct lp_scene_surface *ssurf, struct pipe_surface *psurf)
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{
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if (!psurf) {
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ssurf->stride = 0;
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ssurf->layer_stride = 0;
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ssurf->sample_stride = 0;
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ssurf->nr_samples = 0;
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ssurf->map = NULL;
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return;
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}
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if (llvmpipe_resource_is_texture(psurf->texture)) {
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ssurf->stride = llvmpipe_resource_stride(psurf->texture,
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psurf->u.tex.level);
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ssurf->layer_stride = llvmpipe_layer_stride(psurf->texture,
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psurf->u.tex.level);
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ssurf->sample_stride = llvmpipe_sample_stride(psurf->texture);
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ssurf->map = llvmpipe_resource_map(psurf->texture,
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psurf->u.tex.level,
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psurf->u.tex.first_layer,
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LP_TEX_USAGE_READ_WRITE);
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ssurf->format_bytes = util_format_get_blocksize(psurf->format);
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ssurf->nr_samples = util_res_sample_count(psurf->texture);
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}
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else {
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struct llvmpipe_resource *lpr = llvmpipe_resource(psurf->texture);
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unsigned pixstride = util_format_get_blocksize(psurf->format);
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ssurf->stride = psurf->texture->width0;
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ssurf->layer_stride = 0;
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ssurf->sample_stride = 0;
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ssurf->nr_samples = 1;
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ssurf->map = lpr->data;
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ssurf->map += psurf->u.buf.first_element * pixstride;
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ssurf->format_bytes = util_format_get_blocksize(psurf->format);
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}
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}
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void
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lp_scene_begin_rasterization(struct lp_scene *scene)
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{
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const struct pipe_framebuffer_state *fb = &scene->fb;
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int i;
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//LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
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for (i = 0; i < scene->fb.nr_cbufs; i++) {
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struct pipe_surface *cbuf = scene->fb.cbufs[i];
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init_scene_texture(&scene->cbufs[i], cbuf);
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}
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if (fb->zsbuf) {
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struct pipe_surface *zsbuf = scene->fb.zsbuf;
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init_scene_texture(&scene->zsbuf, zsbuf);
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}
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}
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/**
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* Free all the temporary data in a scene.
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*/
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void
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lp_scene_end_rasterization(struct lp_scene *scene )
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{
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int i;
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/* Unmap color buffers */
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for (i = 0; i < scene->fb.nr_cbufs; i++) {
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if (scene->cbufs[i].map) {
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struct pipe_surface *cbuf = scene->fb.cbufs[i];
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if (llvmpipe_resource_is_texture(cbuf->texture)) {
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llvmpipe_resource_unmap(cbuf->texture,
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cbuf->u.tex.level,
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cbuf->u.tex.first_layer);
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}
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scene->cbufs[i].map = NULL;
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}
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}
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/* Unmap z/stencil buffer */
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if (scene->zsbuf.map) {
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struct pipe_surface *zsbuf = scene->fb.zsbuf;
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llvmpipe_resource_unmap(zsbuf->texture,
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zsbuf->u.tex.level,
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zsbuf->u.tex.first_layer);
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scene->zsbuf.map = NULL;
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}
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/* Reset all command lists:
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*/
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memset(scene->tile, 0, sizeof scene->tile);
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/* Decrement texture ref counts
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*/
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int j = 0;
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for (struct resource_ref *ref = scene->resources; ref; ref = ref->next) {
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for (int i = 0; i < ref->count; i++) {
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if (LP_DEBUG & DEBUG_SETUP)
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debug_printf("resource %d: %p %dx%d sz %d\n",
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j,
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(void *) ref->resource[i],
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ref->resource[i]->width0,
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ref->resource[i]->height0,
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llvmpipe_resource_size(ref->resource[i]));
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j++;
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llvmpipe_resource_unmap(ref->resource[i], 0, 0);
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pipe_resource_reference(&ref->resource[i], NULL);
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}
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}
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for (struct resource_ref *ref = scene->writeable_resources; ref;
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ref = ref->next) {
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for (int i = 0; i < ref->count; i++) {
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if (LP_DEBUG & DEBUG_SETUP)
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debug_printf("resource %d: %p %dx%d sz %d\n",
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j,
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(void *) ref->resource[i],
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ref->resource[i]->width0,
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ref->resource[i]->height0,
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llvmpipe_resource_size(ref->resource[i]));
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j++;
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llvmpipe_resource_unmap(ref->resource[i], 0, 0);
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pipe_resource_reference(&ref->resource[i], NULL);
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}
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}
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if (LP_DEBUG & DEBUG_SETUP) {
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debug_printf("scene %d resources, sz %d\n",
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j, scene->resource_reference_size);
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}
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/* Decrement shader variant ref counts
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*/
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j = 0;
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for (struct shader_ref *ref = scene->frag_shaders; ref; ref = ref->next) {
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for (i = 0; i < ref->count; i++) {
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if (LP_DEBUG & DEBUG_SETUP)
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debug_printf("shader %d: %p\n", j, (void *) ref->variant[i]);
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j++;
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lp_fs_variant_reference(llvmpipe_context(scene->pipe),
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&ref->variant[i], NULL);
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}
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}
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/* Free all scene data blocks:
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*/
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{
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struct data_block_list *list = &scene->data;
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struct data_block *block, *tmp;
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for (block = list->head; block; block = tmp) {
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tmp = block->next;
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if (block != &list->first)
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FREE(block);
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}
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list->head = &list->first;
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list->head->next = NULL;
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}
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lp_fence_reference(&scene->fence, NULL);
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scene->resources = NULL;
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scene->writeable_resources = NULL;
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scene->frag_shaders = NULL;
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scene->scene_size = 0;
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scene->resource_reference_size = 0;
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scene->alloc_failed = FALSE;
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util_unreference_framebuffer_state( &scene->fb );
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}
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struct cmd_block *
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lp_scene_new_cmd_block( struct lp_scene *scene,
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struct cmd_bin *bin )
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{
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struct cmd_block *block = lp_scene_alloc(scene, sizeof(struct cmd_block));
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if (block) {
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if (bin->tail) {
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bin->tail->next = block;
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bin->tail = block;
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}
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else {
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bin->head = block;
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bin->tail = block;
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}
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//memset(block, 0, sizeof *block);
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block->next = NULL;
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block->count = 0;
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}
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return block;
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}
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struct data_block *
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lp_scene_new_data_block( struct lp_scene *scene )
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{
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if (scene->scene_size + DATA_BLOCK_SIZE > LP_SCENE_MAX_SIZE) {
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if (0) debug_printf("%s: failed\n", __FUNCTION__);
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scene->alloc_failed = TRUE;
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return NULL;
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}
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else {
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struct data_block *block = MALLOC_STRUCT(data_block);
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if (!block)
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return NULL;
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scene->scene_size += sizeof *block;
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block->used = 0;
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block->next = scene->data.head;
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scene->data.head = block;
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return block;
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}
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}
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/**
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* Return number of bytes used for all bin data within a scene.
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* This does not include resources (textures) referenced by the scene.
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*/
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static unsigned
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lp_scene_data_size( const struct lp_scene *scene )
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{
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unsigned size = 0;
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const struct data_block *block;
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for (block = scene->data.head; block; block = block->next) {
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size += block->used;
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}
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return size;
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}
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/**
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* Add a reference to a resource by the scene.
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*/
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boolean
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lp_scene_add_resource_reference(struct lp_scene *scene,
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struct pipe_resource *resource,
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boolean initializing_scene,
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boolean writeable)
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{
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struct resource_ref *ref;
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int i;
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struct resource_ref **list = writeable ? &scene->writeable_resources : &scene->resources;
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struct resource_ref **last = list;
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/* Look at existing resource blocks:
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*/
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for (ref = *list; ref; ref = ref->next) {
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last = &ref->next;
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/* Search for this resource:
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*/
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for (i = 0; i < ref->count; i++)
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if (ref->resource[i] == resource)
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return TRUE;
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if (ref->count < RESOURCE_REF_SZ) {
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/* If the block is half-empty, then append the reference here.
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*/
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break;
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}
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}
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/* Create a new block if no half-empty block was found.
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*/
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if (!ref) {
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assert(*last == NULL);
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*last = lp_scene_alloc(scene, sizeof *ref);
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if (*last == NULL)
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return FALSE;
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ref = *last;
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memset(ref, 0, sizeof *ref);
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}
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/* Map resource again to increment the map count. We likely use the
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* already-mapped pointer in a texture of the jit context, and that pointer
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* needs to stay mapped during rasterization. This map is unmap'ed when
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* finalizing scene rasterization. */
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llvmpipe_resource_map(resource, 0, 0, LP_TEX_USAGE_READ);
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/* Append the reference to the reference block.
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*/
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pipe_resource_reference(&ref->resource[ref->count++], resource);
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scene->resource_reference_size += llvmpipe_resource_size(resource);
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/* Heuristic to advise scene flushes. This isn't helpful in the
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* initial setup of the scene, but after that point flush on the
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* next resource added which exceeds 64MB in referenced texture
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* data.
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*/
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if (!initializing_scene &&
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scene->resource_reference_size >= LP_SCENE_MAX_RESOURCE_SIZE)
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return FALSE;
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return TRUE;
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}
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/**
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* Add a reference to a fragment shader variant
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* Return FALSE if out of memory, TRUE otherwise.
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*/
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boolean
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lp_scene_add_frag_shader_reference(struct lp_scene *scene,
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struct lp_fragment_shader_variant *variant)
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{
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struct shader_ref *ref, **last = &scene->frag_shaders;
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/* Look at existing resource blocks:
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*/
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for (ref = scene->frag_shaders; ref; ref = ref->next) {
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last = &ref->next;
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/* Search for this resource:
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*/
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for (int i = 0; i < ref->count; i++)
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if (ref->variant[i] == variant)
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return TRUE;
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if (ref->count < SHADER_REF_SZ) {
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/* If the block is half-empty, then append the reference here.
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*/
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break;
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}
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}
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/* Create a new block if no half-empty block was found.
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*/
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if (!ref) {
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assert(*last == NULL);
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*last = lp_scene_alloc(scene, sizeof *ref);
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if (*last == NULL)
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return FALSE;
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ref = *last;
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memset(ref, 0, sizeof *ref);
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}
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/* Append the reference to the reference block.
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*/
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lp_fs_variant_reference(llvmpipe_context(scene->pipe), &ref->variant[ref->count++], variant);
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return TRUE;
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}
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/**
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* Does this scene have a reference to the given resource?
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*/
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unsigned
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lp_scene_is_resource_referenced(const struct lp_scene *scene,
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const struct pipe_resource *resource)
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{
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const struct resource_ref *ref;
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int i;
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for (ref = scene->resources; ref; ref = ref->next) {
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for (i = 0; i < ref->count; i++)
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if (ref->resource[i] == resource)
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return LP_REFERENCED_FOR_READ;
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}
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for (ref = scene->writeable_resources; ref; ref = ref->next) {
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for (i = 0; i < ref->count; i++)
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if (ref->resource[i] == resource)
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return LP_REFERENCED_FOR_READ | LP_REFERENCED_FOR_WRITE;
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}
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return 0;
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}
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/** advance curr_x,y to the next bin */
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static boolean
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next_bin(struct lp_scene *scene)
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{
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scene->curr_x++;
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if (scene->curr_x >= scene->tiles_x) {
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scene->curr_x = 0;
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|
scene->curr_y++;
|
|
}
|
|
if (scene->curr_y >= scene->tiles_y) {
|
|
/* no more bins */
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
void
|
|
lp_scene_bin_iter_begin( struct lp_scene *scene )
|
|
{
|
|
scene->curr_x = scene->curr_y = -1;
|
|
}
|
|
|
|
|
|
/**
|
|
* Return pointer to next bin to be rendered.
|
|
* The lp_scene::curr_x and ::curr_y fields will be advanced.
|
|
* Multiple rendering threads will call this function to get a chunk
|
|
* of work (a bin) to work on.
|
|
*/
|
|
struct cmd_bin *
|
|
lp_scene_bin_iter_next( struct lp_scene *scene , int *x, int *y)
|
|
{
|
|
struct cmd_bin *bin = NULL;
|
|
|
|
mtx_lock(&scene->mutex);
|
|
|
|
if (scene->curr_x < 0) {
|
|
/* first bin */
|
|
scene->curr_x = 0;
|
|
scene->curr_y = 0;
|
|
}
|
|
else if (!next_bin(scene)) {
|
|
/* no more bins left */
|
|
goto end;
|
|
}
|
|
|
|
bin = lp_scene_get_bin(scene, scene->curr_x, scene->curr_y);
|
|
*x = scene->curr_x;
|
|
*y = scene->curr_y;
|
|
|
|
end:
|
|
/*printf("return bin %p at %d, %d\n", (void *) bin, *bin_x, *bin_y);*/
|
|
mtx_unlock(&scene->mutex);
|
|
return bin;
|
|
}
|
|
|
|
|
|
void lp_scene_begin_binning(struct lp_scene *scene,
|
|
struct pipe_framebuffer_state *fb)
|
|
{
|
|
int i;
|
|
unsigned max_layer = ~0;
|
|
|
|
assert(lp_scene_is_empty(scene));
|
|
|
|
util_copy_framebuffer_state(&scene->fb, fb);
|
|
|
|
scene->tiles_x = align(fb->width, TILE_SIZE) / TILE_SIZE;
|
|
scene->tiles_y = align(fb->height, TILE_SIZE) / TILE_SIZE;
|
|
assert(scene->tiles_x <= TILES_X);
|
|
assert(scene->tiles_y <= TILES_Y);
|
|
|
|
/*
|
|
* Determine how many layers the fb has (used for clamping layer value).
|
|
* OpenGL (but not d3d10) permits different amount of layers per rt, however
|
|
* results are undefined if layer exceeds the amount of layers of ANY
|
|
* attachment hence don't need separate per cbuf and zsbuf max.
|
|
*/
|
|
for (i = 0; i < scene->fb.nr_cbufs; i++) {
|
|
struct pipe_surface *cbuf = scene->fb.cbufs[i];
|
|
if (cbuf) {
|
|
if (llvmpipe_resource_is_texture(cbuf->texture)) {
|
|
max_layer = MIN2(max_layer,
|
|
cbuf->u.tex.last_layer - cbuf->u.tex.first_layer);
|
|
}
|
|
else {
|
|
max_layer = 0;
|
|
}
|
|
}
|
|
}
|
|
if (fb->zsbuf) {
|
|
struct pipe_surface *zsbuf = scene->fb.zsbuf;
|
|
max_layer = MIN2(max_layer, zsbuf->u.tex.last_layer - zsbuf->u.tex.first_layer);
|
|
}
|
|
scene->fb_max_layer = max_layer;
|
|
scene->fb_max_samples = util_framebuffer_get_num_samples(fb);
|
|
if (scene->fb_max_samples == 4) {
|
|
for (unsigned i = 0; i < 4; i++) {
|
|
scene->fixed_sample_pos[i][0] = util_iround(lp_sample_pos_4x[i][0] * FIXED_ONE);
|
|
scene->fixed_sample_pos[i][1] = util_iround(lp_sample_pos_4x[i][1] * FIXED_ONE);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void lp_scene_end_binning( struct lp_scene *scene )
|
|
{
|
|
if (LP_DEBUG & DEBUG_SCENE) {
|
|
debug_printf("rasterize scene:\n");
|
|
debug_printf(" scene_size: %u\n",
|
|
scene->scene_size);
|
|
debug_printf(" data size: %u\n",
|
|
lp_scene_data_size(scene));
|
|
|
|
if (0)
|
|
lp_debug_bins( scene );
|
|
}
|
|
}
|