gpu_uniform_buffer_private.hh

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/* SPDX-FileCopyrightText: 2020 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "BLI_sys_types.h"
 
struct GPUUniformBuf;
 
namespace blender::gpu {
 
#ifndef NDEBUG
#  define DEBUG_NAME_LEN 64
#else
#  define DEBUG_NAME_LEN 8
#endif

class UniformBuf {
 protected:
  size_t size_in_bytes_;
  void *data_ = nullptr;
  char name_[DEBUG_NAME_LEN];
 
 public:
  UniformBuf(size_t size, const char *name);
  virtual ~UniformBuf();
 
  virtual void update(const void *data) = 0;
  virtual void clear_to_zero() = 0;
  virtual void bind(int slot) = 0;
  virtual void bind_as_ssbo(int slot) = 0;
  virtual void unbind() = 0;

  void attach_data(void *data)
  {
    data_ = data;
  }
};
 
/* Syntactic sugar. */
static inline GPUUniformBuf *wrap(UniformBuf *vert)
{
  return reinterpret_cast<GPUUniformBuf *>(vert);
}
static inline UniformBuf *unwrap(GPUUniformBuf *vert)
{
  return reinterpret_cast<UniformBuf *>(vert);
}
static inline const UniformBuf *unwrap(const GPUUniformBuf *vert)
{
  return reinterpret_cast<const UniformBuf *>(vert);
}
 
#undef DEBUG_NAME_LEN
 
}  // namespace blender::gpu