1 /*
2 * Copyright (C) 2011 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 #include "OpenGLESDispatch/EGLDispatch.h"
17
18 #include <stdio.h>
19 #include <stdlib.h>
20
21 namespace gfxstream {
22 namespace gl {
23
24 EGLDispatch s_egl;
25
26 #define RENDER_EGL_LOAD_FIELD_STATIC(return_type, function_name, signature) \
27 s_egl.function_name = (function_name##_t)(::translator::egl::function_name);
28
29 #define RENDER_EGL_LOAD_FIELD_WITH_EGL(return_type, function_name, signature) \
30 if ((!s_egl. function_name) && s_egl.eglGetProcAddress) s_egl. function_name = \
31 (function_name ## _t) s_egl.eglGetProcAddress(#function_name); \
32
33 #define RENDER_EGL_LOAD_OPTIONAL_FIELD_STATIC(return_type, function_name, signature) \
34 if (s_egl.eglGetProcAddress) s_egl. function_name = \
35 (function_name ## _t) s_egl.eglGetProcAddress(#function_name); \
36 if (!s_egl.function_name || !s_egl.eglGetProcAddress) \
37 RENDER_EGL_LOAD_FIELD_STATIC(return_type, function_name, signature)
38
init_egl_dispatch()39 bool init_egl_dispatch() {
40 if (s_egl.initialized) return true;
41
42 LIST_RENDER_EGL_FUNCTIONS(RENDER_EGL_LOAD_FIELD_STATIC)
43 LIST_RENDER_EGL_FUNCTIONS(RENDER_EGL_LOAD_FIELD_WITH_EGL)
44 LIST_RENDER_EGL_EXTENSIONS_FUNCTIONS(RENDER_EGL_LOAD_OPTIONAL_FIELD_STATIC)
45 LIST_RENDER_EGL_SNAPSHOT_FUNCTIONS(RENDER_EGL_LOAD_FIELD_STATIC)
46
47 s_egl.initialized = true;
48 return true;
49 }
50
51 } // namespace gl
52 } // namespace gfxstream