56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
#pragma once
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#include <glad/glad.h>
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#include <string>
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#include <unordered_map>
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#include <glm/mat4x4.hpp>
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#include <glm/vec2.hpp>
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#include <glm/vec3.hpp>
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#include <glm/vec4.hpp>
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namespace extra2d {
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// ============================================================================
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// OpenGL Shader 程序
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// ============================================================================
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class GLShader {
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public:
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GLShader();
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~GLShader();
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// 从源码编译
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bool compileFromSource(const char* vertexSource, const char* fragmentSource);
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// 从文件加载并编译
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bool compileFromFile(const std::string& vertexPath, const std::string& fragmentPath);
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// 使用/激活
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void bind() const;
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void unbind() const;
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// Uniform 设置
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void setBool(const std::string& name, bool value);
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void setInt(const std::string& name, int value);
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void setFloat(const std::string& name, float value);
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void setVec2(const std::string& name, const glm::vec2& value);
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void setVec3(const std::string& name, const glm::vec3& value);
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void setVec4(const std::string& name, const glm::vec4& value);
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void setMat4(const std::string& name, const glm::mat4& value);
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// 获取程序 ID
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GLuint getProgramID() const { return programID_; }
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// 检查是否有效
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bool isValid() const { return programID_ != 0; }
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private:
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GLuint programID_;
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std::unordered_map<std::string, GLint> uniformCache_;
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GLuint compileShader(GLenum type, const char* source);
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GLint getUniformLocation(const std::string& name);
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};
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} // namespace extra2d
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