device/optix/globals.h

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/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
/* Constant Globals */
 
#pragma once
 
#include "kernel/types.h"
 
#include "kernel/integrator/state.h"
#include "kernel/util/profiler.h"
 
#include "util/color.h"
#include "util/texture.h"
 
CCL_NAMESPACE_BEGIN
 
/* Not actually used, just a nullptr pointer that gets passed everywhere, which we
 * hope gets optimized out by the compiler. */
struct KernelGlobalsGPU {
  int unused[1];
};
using KernelGlobals = const ccl_global KernelGlobalsGPU *ccl_restrict;
 
/* Launch parameters */
struct KernelParamsOptiX {
  /* Kernel arguments */
  const int *path_index_array;
  float *render_buffer;
  int offset;
 
  /* Init kernel arguments */
  int num_tiles;
  int max_tile_work_size;
 
  /* Global scene data and textures */
  KernelData data;
#define KERNEL_DATA_ARRAY(type, name) const type *name;
#include "kernel/data_arrays.h"
 
  /* Integrator state */
  IntegratorStateGPU integrator_state;
 
  void *osl_colorsystem;
};
 
#ifdef __NVCC__
extern "C"
#  ifndef __CUDACC_RDC__
    static
#  endif
    __constant__ KernelParamsOptiX kernel_params;
#endif
 
/* Abstraction macros */
#define kernel_data kernel_params.data
#define kernel_data_array(name) kernel_params.name
#define kernel_data_fetch(name, index) kernel_params.name[(index)]
#define kernel_integrator_state kernel_params.integrator_state
 
CCL_NAMESPACE_END