57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
|
#pragma once
|
||
|
|
|
||
|
|
// 使用标准 GLES3.2
|
||
|
|
#include <GLES3/gl32.h>
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
#include <unordered_map>
|
||
|
|
#include <glm/mat4x4.hpp>
|
||
|
|
#include <glm/vec2.hpp>
|
||
|
|
#include <glm/vec3.hpp>
|
||
|
|
#include <glm/vec4.hpp>
|
||
|
|
|
||
|
|
namespace easy2d {
|
||
|
|
|
||
|
|
// ============================================================================
|
||
|
|
// OpenGL Shader 程序
|
||
|
|
// ============================================================================
|
||
|
|
class GLShader {
|
||
|
|
public:
|
||
|
|
GLShader();
|
||
|
|
~GLShader();
|
||
|
|
|
||
|
|
// 从源码编译
|
||
|
|
bool compileFromSource(const char* vertexSource, const char* fragmentSource);
|
||
|
|
|
||
|
|
// 从文件加载并编译
|
||
|
|
bool compileFromFile(const std::string& vertexPath, const std::string& fragmentPath);
|
||
|
|
|
||
|
|
// 使用/激活
|
||
|
|
void bind() const;
|
||
|
|
void unbind() const;
|
||
|
|
|
||
|
|
// Uniform 设置
|
||
|
|
void setBool(const std::string& name, bool value);
|
||
|
|
void setInt(const std::string& name, int value);
|
||
|
|
void setFloat(const std::string& name, float value);
|
||
|
|
void setVec2(const std::string& name, const glm::vec2& value);
|
||
|
|
void setVec3(const std::string& name, const glm::vec3& value);
|
||
|
|
void setVec4(const std::string& name, const glm::vec4& value);
|
||
|
|
void setMat4(const std::string& name, const glm::mat4& value);
|
||
|
|
|
||
|
|
// 获取程序 ID
|
||
|
|
GLuint getProgramID() const { return programID_; }
|
||
|
|
|
||
|
|
// 检查是否有效
|
||
|
|
bool isValid() const { return programID_ != 0; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
GLuint programID_;
|
||
|
|
std::unordered_map<std::string, GLint> uniformCache_;
|
||
|
|
|
||
|
|
GLuint compileShader(GLenum type, const char* source);
|
||
|
|
GLint getUniformLocation(const std::string& name);
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace easy2d
|