Glsl.hpp

// Sh: A GPU metaprogramming language.
//
// Copyright 2003-2005 Serious Hack Inc.
// 
// 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.
#ifndef GLSL_HPP
#define GLSL_HPP

#include <string>
#include "GlBackend.hpp"
#include "ShBackend.hpp"
#include "ShProgram.hpp"
#include "ShException.hpp"

namespace shgl {

class GlslCodeStrategy : public CodeStrategy {
public:
  GlslCodeStrategy(void);
  
  SH::ShBackendCodePtr generate(const std::string& target,
                                const SH::ShProgramNodeCPtr& shader,
                                TextureStrategy* textures);
  SH::ShBackendSetPtr generate_set(const SH::ShProgramSet& s);
  bool use_default_set() const;

  void unbind_all();
  bool use_default_unbind_all() const;
  
  GlslCodeStrategy* create(void);
};

unsigned int glslTarget(const std::string& unit);

class GlslException : public SH::ShBackendException {
public:
  GlslException(const std::string& message);
};

enum GlslProgramType { SH_GLSL_FP, SH_GLSL_VP }; 

void print_infolog(GLhandleARB obj, std::ostream& out = std::cerr);
void print_shader_source(GLhandleARB shader, std::ostream& out = std::cerr);
std::string glsl_typename(SH::ShValueType type, int size);
}

#endif

---