// ----------------------------------------------------------------------------
// OpenGL Anti-Grain Geometry (GL-AGG) - Version 0.1
// A high quality OpenGL rendering engine for C
// Copyright (C) 2012 Nicolas P. Rougier. All rights reserved.
// Contact: Nicolas.Rougier@gmail.com
// http://code.google.com/p/gl-agg/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY NICOLAS P. ROUGIER ''AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL NICOLAS P. ROUGIER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are
// those of the authors and should not be interpreted as representing official
// policies, either expressed or implied, of Nicolas P. Rougier.
// ----------------------------------------------------------------------------
#ifndef __SHADER_H__
#define __SHADER_H__
#include "opengl.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @file shader.h
* @author Nicolas Rougier (Nicolas.Rougier@inria.fr)
*
* @defgroup shader Shader
*
* Simple functions for loading/building a shader from sources.
*
* <b>Example Usage</b>:
* @code
* #include "shader.h"
*
* int main( int arrgc, char *argv[] )
* {
* GLuint shader = shader_load("shader.vert", "shader.frag");
*
* return 0;
* }
* @endcode
*
* @{
*/
/**
* Read a fragment or vertex shader from a file
*
* @param filename file to read shader from
* @return a newly-allocated text buffer containing code. This buffer
* must be freed after usage.
*
*/
char *
shader_read( const char *filename );
/**
* Compile a shader from a text buffer.
*
* @param source code of the shader
* @param type type of the shader
*
* @return a handle on the compiled program
*
*/
GLuint
shader_compile( const char* source,
const GLenum type );
/**
* Load a vertex and fragment shader sources and build program
*
* @param vert_filename vertex shader filename
* @param frag_filename fragment shader filename
*
* @return a handle on the built program
*
*/
GLuint
shader_load( const char * vert_filename,
const char * frag_filename );
/* 0 to indicate success: */
int freetypegl_init(void);
/** @} */
#ifdef __cplusplus
}
#endif
#endif // __SHADER_H__