viewport_engine.hh

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/* SPDX-FileCopyrightText: 2011-2022 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include <pxr/imaging/hd/renderBuffer.h>
 
#include "GPU_batch.hh"
#include "GPU_shader.hh"
#include "GPU_texture.hh"
 
#include "engine.hh"
 
namespace blender::render::hydra {
 
class DrawTexture {
 private:
  blender::gpu::Texture *texture_ = nullptr;
  gpu::Batch *batch_;
 
 public:
  DrawTexture();
  ~DrawTexture();
 
  void create_from_buffer(pxr::HdRenderBuffer *buffer);
  void draw(gpu::Shader *shader,
            const pxr::GfVec4d &viewport,
            blender::gpu::Texture *tex = nullptr);
  blender::gpu::Texture *texture() const;
 
 private:
};
 
class ViewportEngine : public Engine {
 private:
  double time_begin_;
  DrawTexture draw_texture_;
 
 public:
  using Engine::Engine;
 
  void render() override;
  void render(bContext *context);
 
 protected:
  void notify_status(float progress, const std::string &info, const std::string &status) override;
};
 
}  // namespace blender::render::hydra