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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
*/
//! clanGL="Display 3D"
//! header=gl.h
#ifndef header_shader_object
#define header_shader_object
#ifdef CL_API_DLL
#ifdef CL_GL_EXPORT
#define CL_API_GL __declspec(dllexport)
#else
#define CL_API_GL __declspec(dllimport)
#endif
#else
#define CL_API_GL
#endif
#if _MSC_VER > 1000
#pragma once
#endif
#include "../Core/System/sharedptr.h"
#include <string>
#include <vector>
class CL_ResourceManager;
class CL_ShaderObject_Generic;
//: OpenGL Shader Type
enum CL_ShaderType
{
cl_shadertype_vertex,
cl_shadertype_fragment
};
//: OpenGL Shader Object
//- <p>The source code that makes up a program that gets executed by one of
//- the programmable stages is encapsulated in one or more shader
//- objects. Shader objects are attached to a program objects to form a
//- programmable setup. CL_ShaderObject is ClanLib's C++ interface to OpenGL
//- shader objects.</p>
class CL_API_GL CL_ShaderObject
{
//! Construction:
public:
//: Constructs an OpenGL shader.
//param type: Shader type. Can be cl_shadertype_vertex or cl_shadertype_fragment.
//param source: Shader source code, in OpenGL Shader Language (GLSL).
//param sources: Shader source code as list of strings.
//param resource_id: Name of shader object resource.
//param resources: Resource Manager providing resource.
CL_ShaderObject(CL_ShaderType type);
CL_ShaderObject(CL_ShaderType type, const std::string &source);
CL_ShaderObject(CL_ShaderType type, const std::vector<std::string> &sources);
CL_ShaderObject(const std::string &resource_id, CL_ResourceManager *resources);
virtual ~CL_ShaderObject();
//! Attributes:
public:
//: Returns the OpenGL shader handle.
unsigned int get_handle() const;
//: Returns true if compile succeeded.
bool get_compile_status() const;
//: Gets the shader type.
CL_ShaderType get_shader_type() const;
//: Get shader object's info log.
std::string get_info_log() const;
//: Get shader source code.
std::string get_shader_source() const;
//! Operations:
public:
//: Handle assignment operator.
bool operator==(const CL_ShaderObject &other) const;
//! Implementation:
private:
CL_SharedPtr<CL_ShaderObject_Generic> impl;
};
#endif
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