image_space.hh

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/* SPDX-FileCopyrightText: 2021 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
struct ARegion;
struct ImBuf;
struct Image;
struct ImageUser;
struct Main;
 
namespace blender::image_engine {
 
struct ShaderParameters;

class AbstractSpaceAccessor {
 public:
  virtual ~AbstractSpaceAccessor() = default;

  virtual ::Image *get_image(Main *bmain) = 0;

  virtual ImageUser *get_image_user() = 0;

  virtual ImBuf *acquire_image_buffer(::Image *image, void **lock) = 0;

  virtual void release_buffer(::Image *image, ImBuf *image_buffer, void *lock) = 0;

  virtual void get_shader_parameters(ShaderParameters &r_shader_parameters,
                                     ImBuf *image_buffer) = 0;

  virtual bool use_tile_drawing() const = 0;

  virtual void init_ss_to_texture_matrix(const ARegion *region,
                                         const float image_offset[2],
                                         const float image_resolution[2],
                                         float r_uv_to_texture[4][4]) const = 0;
};
 
}  // namespace blender::image_engine