1 /*
2  * Copyright (C) 2013 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef _GL_UTIL_H_
18 #define _GL_UTIL_H_
19 
20 /* convenience */
21 
22 GLuint load_program(const char *vert_src, const char *frag_src);
23 void matrix_init_ortho(GLfloat *m, float w, float h);
24 
25 /* context setup / teardown */
26 
27 int egl_create(EGLDisplay *_display, EGLSurface *_surface, int *_w, int *_h);
28 void egl_destroy(EGLDisplay display, EGLSurface surface);
29 
30 /* internals needed by util.c */
31 
32 struct CNativeWindow;
33 struct CNativeWindow *cnw_create(void);
34 void cnw_destroy(struct CNativeWindow *win);
35 void cnw_info(struct CNativeWindow *win,
36 	unsigned *w, unsigned *h, unsigned *fmt);
37 
38 #endif
39