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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2022 Blender Foundation. All rights reserved. */
#pragma once
#include "DNA_scene_types.h"
#include "GPU_texture.h"
#include "VPC_texture_pool.hh"
namespace blender::viewport_compositor {
/* This abstract class is used by node operations to access data intrinsic to the compositor
* engine. The compositor engine should implement the class to provide the necessary
* functionalities for node operations. */
class Context {
private:
/* A texture pool that can be used to allocate textures for the compositor efficiently. */
TexturePool &texture_pool_;
public:
Context(TexturePool &texture_pool);
/* Get the active compositing scene. */
virtual const Scene *get_scene() = 0;
/* Get the texture representing the viewport where the result of the compositor should be
* written. This should be called by output nodes to get their target texture. */
virtual GPUTexture *get_viewport_texture() = 0;
/* Get the texture where the given render pass is stored. This should be called by the Render
* Layer node to populate its outputs. */
virtual GPUTexture *get_pass_texture(int view_layer, eScenePassType pass_type) = 0;
/* Get a reference to the texture pool of this context. */
TexturePool &texture_pool();
};
} // namespace blender::viewport_compositor
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