2a8ebc4906
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
70 lines
2.8 KiB
C++
70 lines
2.8 KiB
C++
#pragma once
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#include <mln/gfx/shader_group.hpp>
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#include <memory>
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#include <mutex>
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#include <shared_mutex>
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#include <string>
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#include <unordered_map>
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namespace mln {
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namespace gfx {
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using ShaderGroupPtr = std::shared_ptr<gfx::ShaderGroup>;
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/// @brief A ShaderRegistry contains a collection of gfx::ShaderGroup instances.
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/// Using the registry, shader groups may be dynamically registered or replaced
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/// at runtime.
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class ShaderRegistry {
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public:
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explicit ShaderRegistry();
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ShaderRegistry(const ShaderRegistry&) = delete;
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ShaderRegistry(ShaderRegistry&&) noexcept = delete;
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ShaderRegistry& operator=(const ShaderRegistry&) = delete;
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ShaderRegistry& operator=(ShaderRegistry&&) noexcept = delete;
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virtual ~ShaderRegistry() = default;
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/// @brief Get the legacy shader group.
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/// @return A `gfx::ShaderGroup`
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[[nodiscard]] ShaderGroup& getLegacyGroup() noexcept;
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/// @brief Checks if a shader group exists in the registry for the given name.
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/// @param shaderGroupName Name of shader group
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/// @return If a shader group is found, true
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[[nodiscard]] virtual bool isShaderGroup(const std::string& shaderGroupName) const noexcept;
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/// @brief Get a shader group from the registry by name.
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/// @param shaderGroupName Name of shader group
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/// @return A `gfx::ShaderGroup` or `nullptr` if no shader group is found with the
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/// given name
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[[nodiscard]] virtual const ShaderGroupPtr getShaderGroup(const std::string& shaderGroupName) const noexcept;
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/// @brief Replace a matching shader group in the registry with the provided
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/// name.
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/// @param shaderGroup A `gfx::ShaderGroup`. The ShaderRegistry will take ownership.
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/// @param shaderGroupName Unique name to register the shader group under.
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/// @return True if a match was found and the shader group was replaced, false
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/// otherwise.
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[[nodiscard]] virtual bool replaceShader(ShaderGroupPtr&& shaderGroup, const std::string& shaderName) noexcept;
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/// @brief Register a new shader group with the registry for the given name.
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/// If a shader group is present in the registry with a conflicting name,
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/// registration will fail.
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/// @param shaderGroup A `gfx::ShaderGroup` to register. The ShaderRegistry will
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/// take ownership.
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/// @param shaderGroupName Unique name to register the shader group under.
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/// @return True if the shader group was registered, false if another shader group is
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/// already present with a conflicting name.
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[[nodiscard]] virtual bool registerShaderGroup(ShaderGroupPtr&& shaderGroup,
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const std::string& shaderGroupName) noexcept;
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private:
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gfx::ShaderGroup legacyGroup;
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std::unordered_map<std::string, ShaderGroupPtr> shaderGroups;
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mutable std::shared_mutex shaderGroupLock;
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};
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} // namespace gfx
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} // namespace mln
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