75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
// Shader3D.h - Shader management for McRogueFace 3D
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// Handles loading, compiling, and uniform management for PS1-style shaders
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#pragma once
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#include "Math3D.h"
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#include <string>
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#include <unordered_map>
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namespace mcrf {
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class Shader3D {
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public:
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Shader3D();
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~Shader3D();
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// Load and compile shaders from embedded source strings
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// Automatically selects desktop vs ES2 shaders based on platform
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bool loadPS1Shaders();
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// Load from custom source strings
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bool load(const char* vertexSource, const char* fragmentSource);
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// Bind/unbind shader for rendering
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void bind();
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void unbind();
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// Check if shader is valid
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bool isValid() const { return program_ != 0; }
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// Get the raw shader program ID (for glGetUniformLocation in Entity3D)
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unsigned int getProgram() const { return program_; }
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// Uniform setters (cached location lookup)
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void setUniform(const std::string& name, float value);
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void setUniform(const std::string& name, int value);
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void setUniform(const std::string& name, bool value);
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void setUniform(const std::string& name, const vec2& value);
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void setUniform(const std::string& name, const vec3& value);
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void setUniform(const std::string& name, const vec4& value);
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void setUniform(const std::string& name, const mat4& value);
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// Get attribute location for VBO setup
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int getAttribLocation(const std::string& name);
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// Standard attribute locations for PS1 shaders
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static constexpr int ATTRIB_POSITION = 0;
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static constexpr int ATTRIB_TEXCOORD = 1;
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static constexpr int ATTRIB_NORMAL = 2;
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static constexpr int ATTRIB_COLOR = 3;
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private:
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unsigned int program_ = 0;
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std::unordered_map<std::string, int> uniformCache_;
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int getUniformLocation(const std::string& name);
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};
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// =============================================================================
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// Embedded PS1 Shader Sources
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// =============================================================================
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namespace shaders {
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// OpenGL ES 2.0 / WebGL 1.0 shaders
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extern const char* PS1_VERTEX_ES2;
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extern const char* PS1_FRAGMENT_ES2;
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// OpenGL 3.2+ desktop shaders
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extern const char* PS1_VERTEX;
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extern const char* PS1_FRAGMENT;
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} // namespace shaders
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} // namespace mcrf
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