136 lines
4.4 KiB
C++
136 lines
4.4 KiB
C++
#ifndef ARE_INCLUDE_RESOURCE_SHADER_H
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#define ARE_INCLUDE_RESOURCE_SHADER_H
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#include "basic/types.h"
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#include <string>
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#include <unordered_map>
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namespace are {
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/// @brief Shader program resource
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class Shader {
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public:
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/// @brief Constructor
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Shader();
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Shader(const Shader&) = delete;
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Shader& operator=(const Shader&) = delete;
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Shader(Shader&& other) noexcept;
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Shader& operator=(Shader&& other) noexcept;
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/// @brief Destructor
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~Shader();
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/// @brief Load and compile shader from files
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/// @param vertex_path Vertex shader path
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/// @param fragment_path Fragment shader path
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/// @return True if compilation succeeded
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bool load(const std::string& vertex_path, const std::string& fragment_path);
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/// @brief Load and compile compute shader
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/// @param compute_path Compute shader path
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/// @return True if compilation succeeded
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bool load_compute(const std::string& compute_path);
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/// @brief Compile shader from source strings
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/// @param vertex_source Vertex shader source
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/// @param fragment_source Fragment shader source
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/// @return True if compilation succeeded
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bool compile(const std::string& vertex_source, const std::string& fragment_source);
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/// @brief Compile compute shader from source
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/// @param compute_source Compute shader source
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/// @return True if compilation succeeded
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bool compile_compute(const std::string& compute_source);
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/// @brief Use/activate shader program
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void use() const; // 改为const
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/// @brief Release shader resources
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void release();
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/// @brief Set uniform boolean
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/// @param name Uniform name
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/// @param value Value
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void set_bool(const std::string& name, bool value) const; // 新增，const
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/// @brief Set uniform integer
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/// @param name Uniform name
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/// @param value Value
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void set_int(const std::string& name, int value) const; // 改为const
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/// @brief Set uniform unsigned integer
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/// @param name Uniform name
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/// @param value Value
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void set_uint(const std::string& name, uint value) const; // 改为const
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/// @brief Set uniform float
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/// @param name Uniform name
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/// @param value Value
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void set_float(const std::string& name, float value) const; // 改为const
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/// @brief Set uniform vec2
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/// @param name Uniform name
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/// @param value Value
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void set_vec2(const std::string& name, const Vec2& value) const; // 改为const
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/// @brief Set uniform vec3
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/// @param name Uniform name
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/// @param value Value
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void set_vec3(const std::string& name, const Vec3& value) const; // 改为const
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/// @brief Set uniform vec4
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/// @param name Uniform name
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/// @param value Value
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void set_vec4(const std::string& name, const Vec4& value) const; // 改为const
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/// @brief Set uniform mat3
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/// @param name Uniform name
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/// @param value Value
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void set_mat3(const std::string& name, const Mat3& value) const; // 改为const
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/// @brief Set uniform mat4
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/// @param name Uniform name
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/// @param value Value
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void set_mat4(const std::string& name, const Mat4& value) const; // 改为const
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/// @brief Get shader program handle
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/// @return Shader handle
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ShaderHandle get_handle() const { return handle_; }
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/// @brief Check if shader is valid
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/// @return True if valid
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bool is_valid() const { return handle_ != INVALID_HANDLE; }
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private:
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ShaderHandle handle_;
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mutable std::unordered_map<std::string, int> uniform_cache_; // 改为mutable
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/// @brief Get uniform location (with caching)
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/// @param name Uniform name
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/// @return Uniform location
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int get_uniform_location_(const std::string& name) const; // 改为const
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/// @brief Compile shader stage
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/// @param source Shader source code
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/// @param type Shader type (GL_VERTEX_SHADER, etc.)
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/// @return Shader object handle (0 on failure)
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uint compile_shader_(const std::string& source, uint type);
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/// @brief Link shader program
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/// @param shaders Array of shader object handles
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/// @param count Number of shaders
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/// @return True if linking succeeded
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bool link_program_(const uint* shaders, uint count);
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/// @brief Read file content
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/// @param path File path
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/// @return File content
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std::string read_file_(const std::string& path);
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};
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} // namespace are
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#endif // ARE_INCLUDE_RESOURCE_SHADER_H
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