gpu_context_private.hh

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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2016 by Mike Erwin.
 * All rights reserved.
 */
 
#pragma once
 
#include "MEM_guardedalloc.h"
 
#include "GPU_context.h"
 
#include "gpu_debug_private.hh"
#include "gpu_framebuffer_private.hh"
#include "gpu_immediate_private.hh"
#include "gpu_shader_private.hh"
#include "gpu_state_private.hh"
 
#include <pthread.h>
 
struct GPUMatrixState;
 
namespace blender::gpu {
 
class Context {
 public:
  Shader *shader = NULL;
  FrameBuffer *active_fb = NULL;
  GPUMatrixState *matrix_state = NULL;
  StateManager *state_manager = NULL;
  Immediate *imm = NULL;
 
  FrameBuffer *back_left = NULL;
  FrameBuffer *front_left = NULL;
  FrameBuffer *back_right = NULL;
  FrameBuffer *front_right = NULL;
 
  DebugStack debug_stack;
 
 protected:
  pthread_t thread_;
  bool is_active_;
  void *ghost_window_;
 
 public:
  Context();
  virtual ~Context();
 
  static Context *get(void);
 
  virtual void activate(void) = 0;
  virtual void deactivate(void) = 0;
 
  /* Will push all pending commands to the GPU. */
  virtual void flush(void) = 0;
  /* Will wait until the GPU has finished executing all command. */
  virtual void finish(void) = 0;
 
  virtual void memory_statistics_get(int *total_mem, int *free_mem) = 0;
 
  virtual void debug_group_begin(const char *, int){};
  virtual void debug_group_end(void){};
 
  bool is_active_on_thread(void);
};
 
/* Syntactic sugar. */
static inline GPUContext *wrap(Context *ctx)
{
  return reinterpret_cast<GPUContext *>(ctx);
}
static inline Context *unwrap(GPUContext *ctx)
{
  return reinterpret_cast<Context *>(ctx);
}
static inline const Context *unwrap(const GPUContext *ctx)
{
  return reinterpret_cast<const Context *>(ctx);
}
 
}  // namespace blender::gpu