1388a70914
This is the first step into merging DRW_gpu_wrapper.hh into the GPU module. This is very similar to #119825. Pull Request: https://projects.blender.org/blender/blender/pulls/144229
71 lines
1.9 KiB
C++
71 lines
1.9 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 "GPU_shader.hh"
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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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/* ------------------------------------------------------------------------------------------------
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* Cached Shader Key.
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*/
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class CachedShaderKey {
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public:
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std::string info_name;
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ResultPrecision precision;
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CachedShaderKey(const char *info_name, ResultPrecision precision);
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uint64_t hash() const;
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};
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bool operator==(const CachedShaderKey &a, const CachedShaderKey &b);
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/* -------------------------------------------------------------------------------------------------
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* Cached Shader.
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*
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* A cached resource that constructs and caches a GPU shader from the given info name with its
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* output images' precision changed to the given precision. */
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class CachedShader : public CachedResource {
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private:
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gpu::Shader *shader_ = nullptr;
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public:
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CachedShader(const char *info_name, ResultPrecision precision);
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~CachedShader();
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gpu::Shader *shader() const;
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};
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/* ------------------------------------------------------------------------------------------------
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* Cached Shader Container.
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*/
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class CachedShaderContainer : public CachedResourceContainer {
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private:
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Map<CachedShaderKey, std::unique_ptr<CachedShader>> map_;
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public:
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void reset() override;
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/* Check if there is an available CachedShader cached resource with the given parameters in the
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* container, if one exists, return its shader, otherwise, return the shader of a newly created
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* one and add it to the container. In both cases, tag the cached resource as needed to keep it
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* cached for the next evaluation. */
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gpu::Shader *get(const char *info_name, ResultPrecision precision);
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};
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} // namespace blender::compositor
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