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/* San Angeles Observation OpenGL ES version example
* Copyright 2004-2005 Jetro Lauha
* All rights reserved.
* Web:
* This source is free software; you can redistribute it and/or
* modify it under the terms of EITHER:
* (1) The GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at
* your option) any later version. The text of the GNU Lesser
* General Public License is included with this source in the
* file LICENSE-LGPL.txt.
* (2) The BSD-style license that is included with this source in
* the file LICENSE-BSD.txt.
* This source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* LICENSE-LGPL.txt and LICENSE-BSD.txt for more details.
* $Id: importgl.h,v 1.4 2005/02/24 20:29:33 tonic Exp $
* $Revision: 1.4 $
#ifdef __cplusplus
extern "C" {
#include <GLES2/gl2.h>
/* Use DISABLE_IMPORTGL if you want to link the OpenGL ES at
* compile/link time and not import it dynamically runtime.
/* Dynamically fetches pointers to the gl functions.
* Should be called once on application initialization.
* Returns non-zero on success and 0 on failure.
extern int importGLInit();
#define IMPORTGL_API extern
#define FNDEF(retType, funcName, args) \
IMPORTGL_API retType (*funcPtr_##funcName) args IMPORTGL_FNPTRINIT;\
typedef retType (*funcType_##funcName) args
FNDEF(void, glAttachShader, (GLuint program, GLuint shader));
FNDEF(void, glBindBuffer, (GLenum target, GLuint buffer));
FNDEF(void, glBlendFunc, (GLenum sfactor, GLenum dfactor));
FNDEF(void, glBufferData, (GLenum target, GLsizeiptr size,
const void* data, GLenum usage));
FNDEF(void, glBufferSubData, (GLenum target, GLintptr offset,
GLsizeiptr size, const void* data));
FNDEF(void, glClear, (GLbitfield mask));
FNDEF(void, glClearColor, (GLclampf red, GLclampf green, GLclampf blue,
GLclampf alpha));
FNDEF(void, glCompileShader, (GLuint shader));
FNDEF(GLuint, glCreateProgram, (void));
FNDEF(GLuint, glCreateShader, (GLenum type));
FNDEF(void, glDeleteBuffers, (GLsizei n, const GLuint* buffers));
FNDEF(void, glDeleteProgram, (GLuint program));
FNDEF(void, glDeleteShader, (GLuint shader));
FNDEF(void, glDisable, (GLenum cap));
FNDEF(void, glDisableVertexAttribArray, (GLuint index));
FNDEF(void, glDrawArrays, (GLenum mode, GLint first, GLsizei count));
FNDEF(void, glEnable, (GLenum cap));
FNDEF(void, glEnableVertexAttribArray, (GLuint index));
FNDEF(void, glGenBuffers, (GLsizei n, GLuint* buffers));
FNDEF(int, glGetAttribLocation, (GLuint program, const char* name));
FNDEF(GLenum, glGetError, (void));
FNDEF(void, glGetShaderiv, (GLuint shader, GLenum pname, GLint* params));
FNDEF(void, glGetShaderInfoLog, (GLuint shader, GLsizei bufsize,
GLsizei* length, char* infolog));
FNDEF(int, glGetUniformLocation, (GLuint program, const char* name));
FNDEF(void, glLinkProgram, (GLuint program));
FNDEF(void, glShaderSource, (GLuint shader, GLsizei count,
const char** string, const GLint* length));
FNDEF(void, glUniform1f, (GLint location, GLfloat x));
FNDEF(void, glUniform3fv, (GLint location, GLsizei count, const GLfloat* v));
FNDEF(void, glUniform4fv, (GLint location, GLsizei count, const GLfloat* v));
FNDEF(void, glUniformMatrix3fv, (GLint location, GLsizei count,
GLboolean transpose, const GLfloat* value));
FNDEF(void, glUniformMatrix4fv, (GLint location, GLsizei count,
GLboolean transpose, const GLfloat* value));
FNDEF(void, glUseProgram, (GLuint program));
FNDEF(void, glVertexAttribPointer, (GLuint indx, GLint size, GLenum type,
GLboolean normalized, GLsizei stride,
const void* ptr));
FNDEF(void, glViewport, (GLint x, GLint y, GLsizei width, GLsizei height));
#undef FN
#define FNPTR(name) funcPtr_##name
// Redirect gl* function calls to funcPtr_gl*.
#define glAttachShader FNPTR(glAttachShader)
#define glBindBuffer FNPTR(glBindBuffer)
#define glBlendFunc FNPTR(glBlendFunc)
#define glBufferData FNPTR(glBufferData)
#define glBufferSubData FNPTR(glBufferSubData)
#define glClear FNPTR(glClear)
#define glClearColor FNPTR(glClearColor)
#define glCompileShader FNPTR(glCompileShader)
#define glCreateProgram FNPTR(glCreateProgram)
#define glCreateShader FNPTR(glCreateShader)
#define glDeleteBuffers FNPTR(glDeleteBuffers)
#define glDeleteProgram FNPTR(glDeleteProgram)
#define glDeleteShader FNPTR(glDeleteShader)
#define glDisable FNPTR(glDisable)
#define glDisableVertexAttribArray FNPTR(glDisableVertexAttribArray)
#define glDrawArrays FNPTR(glDrawArrays)
#define glEnable FNPTR(glEnable)
#define glEnableVertexAttribArray FNPTR(glEnableVertexAttribArray)
#define glGenBuffers FNPTR(glGenBuffers)
#define glGetAttribLocation FNPTR(glGetAttribLocation)
#define glGetError FNPTR(glGetError)
#define glGetShaderiv FNPTR(glGetShaderiv)
#define glGetShaderInfoLog FNPTR(glGetShaderInfoLog)
#define glGetUniformLocation FNPTR(glGetUniformLocation)
#define glLinkProgram FNPTR(glLinkProgram)
#define glShaderSource FNPTR(glShaderSource)
#define glUniform1f FNPTR(glUniform1f)
#define glUniform3fv FNPTR(glUniform3fv)
#define glUniform4fv FNPTR(glUniform4fv)
#define glUniformMatrix3fv FNPTR(glUniformMatrix3fv)
#define glUniformMatrix4fv FNPTR(glUniformMatrix4fv)
#define glUseProgram FNPTR(glUseProgram)
#define glViewport FNPTR(glViewport)
#define glVertexAttribPointer FNPTR(glVertexAttribPointer)
#ifdef __cplusplus