9cfc7967dd
* Replace license text in headers with SPDX identifiers. * Remove specific license info from outdated readme.txt, instead leave details to the source files. * Add list of SPDX license identifiers used, and corresponding license texts. * Update copyright dates while we're at it. Ref D14069, T95597
118 lines
2.5 KiB
C++
118 lines
2.5 KiB
C++
/* SPDX-License-Identifier: Apache-2.0
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* Copyright 2011-2022 Blender Foundation */
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#include "scene/tables.h"
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#include "device/device.h"
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#include "scene/scene.h"
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#include "scene/stats.h"
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#include "util/log.h"
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#include "util/time.h"
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CCL_NAMESPACE_BEGIN
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/* Lookup Tables */
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LookupTables::LookupTables()
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{
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need_update_ = true;
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}
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LookupTables::~LookupTables()
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{
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assert(lookup_tables.size() == 0);
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}
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void LookupTables::device_update(Device *, DeviceScene *dscene, Scene *scene)
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{
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if (!need_update())
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return;
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scoped_callback_timer timer([scene](double time) {
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if (scene->update_stats) {
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scene->update_stats->tables.times.add_entry({"device_update", time});
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}
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});
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VLOG(1) << "Total " << lookup_tables.size() << " lookup tables.";
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if (lookup_tables.size() > 0)
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dscene->lookup_table.copy_to_device();
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need_update_ = false;
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}
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void LookupTables::device_free(Device *, DeviceScene *dscene)
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{
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dscene->lookup_table.free();
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}
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bool LookupTables::need_update() const
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{
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return need_update_;
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}
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static size_t round_up_to_multiple(size_t size, size_t chunk)
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{
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return ((size + chunk - 1) / chunk) * chunk;
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}
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size_t LookupTables::add_table(DeviceScene *dscene, vector<float> &data)
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{
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assert(data.size() > 0);
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need_update_ = true;
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Table new_table;
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new_table.offset = 0;
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new_table.size = round_up_to_multiple(data.size(), TABLE_CHUNK_SIZE);
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/* find space to put lookup table */
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list<Table>::iterator table;
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for (table = lookup_tables.begin(); table != lookup_tables.end(); table++) {
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if (new_table.offset + new_table.size <= table->offset) {
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lookup_tables.insert(table, new_table);
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break;
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}
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else
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new_table.offset = table->offset + table->size;
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}
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if (table == lookup_tables.end()) {
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/* add at the end */
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lookup_tables.push_back(new_table);
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dscene->lookup_table.resize(new_table.offset + new_table.size);
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}
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/* copy table data and return offset */
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float *dtable = dscene->lookup_table.data();
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memcpy(dtable + new_table.offset, &data[0], sizeof(float) * data.size());
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return new_table.offset;
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}
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void LookupTables::remove_table(size_t *offset)
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{
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if (*offset == TABLE_OFFSET_INVALID) {
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/* The table isn't even allocated, so just return here. */
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return;
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}
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need_update_ = true;
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list<Table>::iterator table;
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for (table = lookup_tables.begin(); table != lookup_tables.end(); table++) {
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if (table->offset == *offset) {
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lookup_tables.erase(table);
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*offset = TABLE_OFFSET_INVALID;
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return;
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}
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}
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assert(table != lookup_tables.end());
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}
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CCL_NAMESPACE_END
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