79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
/**
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* @author Edouard DUPIN
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*
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* @copyright 2011, Edouard DUPIN, all right reserved
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*
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* @license APACHE v2.0 (see license file)
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*/
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#ifndef __OPEN_GL__SHADER_H__
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#define __OPEN_GL__SHADER_H__
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#include <etk/types.h>
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#include <gale/debug.h>
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#include <gale/renderer/openGL/openGL.h>
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#include <gale/resource/Resource.h>
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namespace gale {
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namespace resource {
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/**
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* @brief Shader is a specific resources for opengl, used only in @ref Program. This are components of the renderer pipe-line
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*/
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class Shader : public gale::Resource {
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private :
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bool m_exist; //!< The shader file existed and has been loaded
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char* m_fileData; //!< A copy of the data loaded from the file (usefull only when opengl context is removed)
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GLuint m_shader; //!< opengl id of this element
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GLenum m_type; //!< Type of the current shader(vertex/fragment)
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protected:
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/**
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* @brief Contructor of an opengl Shader
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* @param[in] filename Standard file name format. see @ref etk::FSNode
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*/
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Shader();
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public:
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void init(const std::string& _filename);
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DECLARE_RESOURCE_NAMED_FACTORY(Shader);
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/**
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* @brief Destructor, remove the current Shader
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*/
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virtual ~Shader();
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public:
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/**
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* @brief get the opengl reference id of this shader.
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* @return The opengl id.
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*/
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GLuint getGL_ID() {
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return m_shader;
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};
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/**
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* @brief get the opengl type of this shader.
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* @return The type of this loaded shader.
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*/
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GLenum getShaderType() {
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return m_type;
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};
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/**
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* @brief This load/reload the data in the opengl context, needed when removed previously.
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*/
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void updateContext();
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/**
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* @brief remove the data from the opengl context.
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*/
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void removeContext();
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/**
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* @brief Special android spec! It inform us that all context is removed and after notify us...
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*/
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void removeContextToLate();
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/**
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* @brief Relode the shader from the file. used when a request of resouces reload is done.
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* @note this is really usefull when we tested the new themes or shader developpements.
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*/
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void reload();
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};
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};
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};
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#endif
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