/*
 * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#ifndef __SHARED_H__
#define __SHARED_H__

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "EGL/egl.h"
#include "EGL/eglext.h"
#include "GLES2/gl2.h"
#include "GLES2/gl2ext.h"

// EGL_KHR_stream functions
extern PFNEGLCREATESTREAMKHRPROC  eglCreateStreamKHR;
extern PFNEGLDESTROYSTREAMKHRPROC eglDestroyStreamKHR;
extern PFNEGLSTREAMATTRIBKHRPROC  eglStreamAttribKHR;
extern PFNEGLQUERYSTREAMKHRPROC   eglQueryStreamKHR;

// EGL_KHR_stream_consumer_gltexture functions
extern PFNEGLSTREAMCONSUMERGLTEXTUREEXTERNALKHRPROC eglStreamConsumerGLTextureExternalKHR;
extern PFNEGLSTREAMCONSUMERACQUIREKHRPROC           eglStreamConsumerAcquireKHR;
extern PFNEGLSTREAMCONSUMERRELEASEKHRPROC           eglStreamConsumerReleaseKHR;

// EGL_KHR_stream_producer_eglsurface functions
extern PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC eglCreateStreamProducerSurfaceKHR;

#define DEBUG_PRINT(x) printf x
#define FATAL_ERROR(msg) \
	do { \
        int errsv = errno; \
		printf("Fatal Error: " msg "\n"); \
        if (errsv) printf("failed with error %s\n", strerror(errsv)); \
		printf("failed at %s:%d\n", __FILE__,__LINE__); \
		exit(1); \
	} while (0)

void InitEGLExtFuncs(void);
void LoadShader(unsigned int sObj, const char *src, int srcLen);
void CreateRotationMatrix(float mat[16], float angle, float x, float y, float z);
extern void CreateFrustumMatrix(float *matrix, float left, float right, float bottom, float top,
                         float znear, float zfar);
extern void CreatePerspectiveMatrix(float mat[16], double fovy, double aspect,
                                    double zNear, double zFar);
#endif