osl/globals.cpp

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/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
#include <cstdint> /* Needed before `sdlexec.h` for `int32_t` with GCC 15.1. */
 
#include <OSL/oslexec.h>
 
#include "kernel/osl/globals.h"
 
CCL_NAMESPACE_BEGIN
 
OSLThreadData::OSLThreadData(OSLGlobals *osl_globals, const int thread_index)
    : globals(osl_globals), thread_index(thread_index)
{
  /* If OSL is not used, we don't need this. */
  if (globals == nullptr || !(globals->use_shading || globals->use_camera)) {
    return;
  }
 
  ss = globals->ss;
 
  memset((void *)&shader_globals, 0, sizeof(shader_globals));
  shader_globals.tracedata = &tracedata;
 
  if (ss) {
    osl_thread_info = ss->create_thread_info();
    context = ss->get_context(osl_thread_info);
  }
  if (globals->ts) {
    oiio_thread_info = globals->ts->get_perthread_info();
  }
}
 
OSLThreadData::~OSLThreadData()
{
  if (context) {
    ss->release_context(context);
  }
  if (osl_thread_info) {
    ss->destroy_thread_info(osl_thread_info);
  }
}
 
OSLThreadData::OSLThreadData(OSLThreadData &&other) noexcept
    : globals(other.globals),
      ss(other.ss),
      thread_index(other.thread_index),
      shader_globals(other.shader_globals),
      tracedata(other.tracedata),
      osl_thread_info(other.osl_thread_info),
      context(other.context),
      oiio_thread_info(other.oiio_thread_info)
{
  shader_globals.tracedata = &tracedata;
 
  memset((void *)&other.shader_globals, 0, sizeof(other.shader_globals));
  memset((void *)&other.tracedata, 0, sizeof(other.tracedata));
  other.thread_index = -1;
  other.context = nullptr;
  other.osl_thread_info = nullptr;
  other.oiio_thread_info = nullptr;
}
 
CCL_NAMESPACE_END