141 lines
3.0 KiB
C++
141 lines
3.0 KiB
C++
#pragma once
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#ifndef _NB_SHADER
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#define _NB_SHADER
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#include "GLLoad.hpp"
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#include <string>
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#include <NBCore/Errors.hpp>
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#include <NBCore/Utils.hpp>
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#include "OGLObjects.hpp"
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namespace nb {
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class ShaderError : public Error<ShaderError> {
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using Base = Error<ShaderError>;
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public:
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using Base::Base;
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enum Codes : unsigned int {
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UNDEFINED
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};
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static const std::string type;
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static const ErrorCodeMap ErrorMessages;
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};
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class ProgramError : public Error<ProgramError> {
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using Base = Error<ProgramError>;
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public:
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using Base::Base;
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enum Codes : unsigned int {
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UNDEFINED, LINKING_ERROR
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};
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static const std::string type;
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static const ErrorCodeMap ErrorMessages;
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};
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enum OpenGLProfiles {
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Core,
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Compatibility,
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ES
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};
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class Shader : public OpenGLObject {
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using Base = OpenGLObject;
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public:
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using Base::Base;
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using Base::id;
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Shader(GLenum, const std::string&);
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Shader(GLenum, const std::vector<std::string>&);
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Shader(Shader&&);
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Shader& operator=(Shader&&) = delete;
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~Shader() { remove(); }
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operator bool();
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virtual void bind() const override { /* TODO: Some warning of some kind perhaps*/ }
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virtual void unbind() const override { /* TODO: Some warning of some kind perhaps*/ }
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bool success() const;
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GLint status(GLenum) const;
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std::string log() const;
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const GLenum target;
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friend Base;
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protected:
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using Base::_id;
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GLint _success;
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std::vector<std::string> _sources;
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virtual void compile() {
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int num_srcs = _sources.size();
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std::vector<char*> src_ptrs(num_srcs);
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for (int i=0; i < num_srcs; ++i) {
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src_ptrs[i] = _sources[i].data();
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}
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glShaderSource(_id, num_srcs, src_ptrs.data(), NULL);
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glCompileShader(_id);
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_success = status(GL_COMPILE_STATUS);
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if (!_success) {
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WARN(log(), 0x0FE);
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}
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}
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virtual GLuint declare() override {
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if (!_id) {
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_id = _id = glCreateShader(target);
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}
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return _id;
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}
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virtual void remove() override {
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if (_id) {
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glDeleteShader(_id);
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}
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}
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};
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class Program : public OpenGLObject {
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using Base = OpenGLObject;
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public:
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using Base::Base;
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using Base::id;
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Program(SharedVector<Shader>);
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Program(Program&&);
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Program& operator=(Program&&) = delete;
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operator bool();
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~Program() { remove(); }
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virtual void bind() const override {
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glUseProgram(_id);
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}
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virtual void unbind() const override { /* TODO: Some warning of some kind perhaps*/ }
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GLint status(GLenum) const;
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std::string log() const;
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friend Base;
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protected:
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using Base::_id;
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GLint _success;
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virtual GLuint declare() override {
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if (!_id) {
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_id = glCreateProgram();
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}
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return _id;
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}
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virtual void remove() override {
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if (_id) {
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glDeleteProgram(_id);
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}
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}
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};
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}
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#endif |