90 lines
2 KiB
C++
90 lines
2 KiB
C++
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#ifndef SPECTRE_GRAPHICS_SHADER_PROGRAM_H
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#define SPECTRE_GRAPHICS_SHADER_PROGRAM_H
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#include <string>
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#include <Spectre/Math/Matrix4.h>
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#include "Shader.h"
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namespace sp {
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struct Color;
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class ShaderProgram
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{
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public :
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ShaderProgram();
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~ShaderProgram();
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void create();
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void destroy();
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void addShader(const Shader& shader);
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// Load a shader program from file.
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//
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// The following naming conventions are supported:
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// <name>.glsl - Virtual file, will load all real shader files with the same name.
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// <name>.vert.glsl - Vertex shader.
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// <name>.frag.glsl - Fragment shader.
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bool loadFromFile(const std::string& filename);
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// Load a shader from file.
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bool loadFromFile(const std::string& filename, Shader::Type type);
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// Load a shader from memory.
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bool loadFromMemory(const std::string& source, Shader::Type type);
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// Link the program.
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bool link();
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// Returns true if the program was linked successfully
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bool isLinked() const;
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// Enable this shader
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// All shader operations after this call will affect this shader.
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void enable() const;
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// Disable this shader
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// Operations will no longer affect this shader after this call.
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void disable() const;
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// Get the last shader error.
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std::string getLastError() const;
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// ---------------------
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// Variables.
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// ---------------------
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bool setMVPMatrix(const Matrix4f& matrix);
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// ---------------------
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// General Variables.
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// ---------------------
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bool setAttribute(const std::string& name, float value) const;
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bool setAttribute(const std::string& name, const Matrix4f& matrix) const;
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bool setUniform(const std::string& name, const Matrix4f& matrix) const;
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bool setUniform(const std::string& name, const Color& color) const;
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protected :
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bool getAttribLoc(const std::string& name, int& loc) const;
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bool getUniformLoc(const std::string& name, int& loc) const;
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std::string fetchErrorLog();
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protected :
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unsigned int m_id; // program id
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mutable std::string m_error;
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};
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} // namespace sp
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#endif /* SPECTRE_GRAPHICS_SHADER_PROGRAM_H */
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