626118984e
This replaces the deprecated DrawData mechanism by the usage of the update timestamp `last_update`. The compositor keeps the `last_update` value of the cached ID and compares it with the value on the ID at the time of evaluation. Rel #134690 Pull Request: https://projects.blender.org/blender/blender/pulls/134878
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include <cstdint>
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#include <memory>
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#include <string>
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#include "BLI_map.hh"
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#include "BLI_math_vector_types.hh"
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#include "DNA_texture_types.h"
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#include "COM_cached_resource.hh"
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#include "COM_result.hh"
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namespace blender::compositor {
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class Context;
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/* ------------------------------------------------------------------------------------------------
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* Cached Texture Key.
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*/
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class CachedTextureKey {
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public:
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int2 size;
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float3 offset;
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float3 scale;
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CachedTextureKey(int2 size, float3 offset, float3 scale);
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uint64_t hash() const;
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};
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bool operator==(const CachedTextureKey &a, const CachedTextureKey &b);
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/* -------------------------------------------------------------------------------------------------
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* Cached Texture.
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*
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* A cached resource that computes and caches a GPU texture containing the result of evaluating the
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* given texture ID on a space that spans the given size, parameterized by the given parameters. */
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class CachedTexture : public CachedResource {
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private:
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Array<float4> color_pixels_;
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Array<float> value_pixels_;
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public:
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Result color_result;
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Result value_result;
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CachedTexture(Context &context,
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Tex *texture,
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bool use_color_management,
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int2 size,
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float3 offset,
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float3 scale);
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~CachedTexture();
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};
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/* ------------------------------------------------------------------------------------------------
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* Cached Texture Container.
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*/
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class CachedTextureContainer : CachedResourceContainer {
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private:
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Map<std::string, Map<CachedTextureKey, std::unique_ptr<CachedTexture>>> map_;
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/* A map that stores the update counts of the textures at the moment they were cached. */
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Map<std::string, uint64_t> update_counts_;
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public:
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void reset() override;
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/* Check if the given texture ID has changed since the last time it was retrieved through its
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* recalculate flag, and if so, invalidate its corresponding cached textures and reset the
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* recalculate flag to ready it to track the next change. Then, check if there is an available
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* CachedTexture cached resource with the given parameters in the container, if one exists,
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* return it, otherwise, return a newly created one and add it to the container. In both cases,
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* tag the cached resource as needed to keep it cached for the next evaluation. */
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CachedTexture &get(Context &context,
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Tex *texture,
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bool use_color_management,
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int2 size,
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float3 offset,
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float3 scale);
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};
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} // namespace blender::compositor
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