53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
#pragma once
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#include <mbgl/gfx/shader.hpp>
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#include <mbgl/gfx/uniform_block.hpp>
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#include <mbgl/gfx/vertex_attribute.hpp>
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#include <mbgl/util/identity.hpp>
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#include <mbgl/util/string_indexer.hpp>
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#include <string>
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#include <optional>
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namespace mbgl {
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namespace gfx {
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class ShaderProgramBase : public gfx::Shader {
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protected:
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ShaderProgramBase() {}
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ShaderProgramBase(ShaderProgramBase&&) {}
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~ShaderProgramBase() noexcept override = default;
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template <typename T>
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bool set(gfx::VertexAttributeArray& attrs, const StringIdentity id, std::size_t i, T value) {
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const auto& item = attrs.get(id);
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if (item && i < item->getCount()) {
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item->set(i, value);
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return true;
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}
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return false;
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}
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public:
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const util::SimpleIdentity& getID() const { return shaderProgramID; }
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/// @brief Gets the sampler location
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/// @param name uniform name
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virtual std::optional<uint32_t> getSamplerLocation(const StringIdentity) const = 0;
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/// Get the available uniform blocks attached to this shader
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virtual const gfx::UniformBlockArray& getUniformBlocks() const = 0;
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/// Get the available vertex attributes and their default values
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virtual const gfx::VertexAttributeArray& getVertexAttributes() const = 0;
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protected:
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virtual gfx::UniformBlockArray& mutableUniformBlocks() = 0;
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protected:
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util::SimpleIdentity shaderProgramID;
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};
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} // namespace gfx
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} // namespace mbgl
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