1 /*
2 **
3 ** Copyright 2006, The Android Open Source Project
4 **
5 ** Licensed under the Apache License, Version 2.0 (the "License");
6 ** you may not use this file except in compliance with the License.
7 ** You may obtain a copy of the License at
8 **
9 ** http://www.apache.org/licenses/LICENSE-2.0
10 **
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
16 */
17
18 #include <stdlib.h>
19 #include <stdio.h>
20
21 #include <EGL/egl.h>
22 #include <GLES/gl.h>
23 #include <GLES/glext.h>
24
25 #include <utils/StopWatch.h>
26 #include <WindowSurface.h>
27 #include <EGLUtils.h>
28
29 using namespace android;
30
main(int,char **)31 int main(int /*argc*/, char** /*argv*/)
32 {
33 EGLint configAttribs[] = {
34 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
35 EGL_NONE
36 };
37
38 EGLint majorVersion;
39 EGLint minorVersion;
40 EGLContext context;
41 EGLConfig config;
42 EGLint numConfigs=0;
43 EGLSurface surface;
44 EGLint w, h;
45 EGLDisplay dpy;
46
47
48 WindowSurface windowSurface;
49 EGLNativeWindowType window = windowSurface.getSurface();
50
51 dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
52 eglInitialize(dpy, &majorVersion, &minorVersion);
53 eglGetConfigs(dpy, NULL, 0, &numConfigs);
54 printf("# configs = %d\n", numConfigs);
55
56 status_t err = EGLUtils::selectConfigForNativeWindow(
57 dpy, configAttribs, window, &config);
58 if (err) {
59 fprintf(stderr, "error: %s", EGLUtils::strerror(eglGetError()));
60 eglTerminate(dpy);
61 return 0;
62 }
63
64 EGLint r,g,b,a, vid;
65 eglGetConfigAttrib(dpy, config, EGL_RED_SIZE, &r);
66 eglGetConfigAttrib(dpy, config, EGL_GREEN_SIZE, &g);
67 eglGetConfigAttrib(dpy, config, EGL_BLUE_SIZE, &b);
68 eglGetConfigAttrib(dpy, config, EGL_ALPHA_SIZE, &a);
69 eglGetConfigAttrib(dpy, config, EGL_NATIVE_VISUAL_ID, &vid);
70
71 surface = eglCreateWindowSurface(dpy, config, window, NULL);
72 if (surface == EGL_NO_SURFACE) {
73 EGLint err = eglGetError();
74 fprintf(stderr, "error: %s, config=%p, format = %d-%d-%d-%d, visual-id = %d\n",
75 EGLUtils::strerror(err), config, r,g,b,a, vid);
76 eglTerminate(dpy);
77 return 0;
78 } else {
79 printf("config=%p, format = %d-%d-%d-%d, visual-id = %d\n",
80 config, r,g,b,a, vid);
81 }
82
83 context = eglCreateContext(dpy, config, NULL, NULL);
84 eglMakeCurrent(dpy, surface, surface, context);
85 eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
86 eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
87
88 printf("w=%d, h=%d\n", w, h);
89
90 glDisable(GL_DITHER);
91 glEnable(GL_BLEND);
92
93 glViewport(0, 0, w, h);
94 glOrthof(0, w, 0, h, 0, 1);
95
96 eglSwapInterval(dpy, 1);
97
98 glClearColor(1,0,0,0);
99 glClear(GL_COLOR_BUFFER_BIT);
100 eglSwapBuffers(dpy, surface);
101
102
103 int time = 10;
104 printf("screen should flash red/green quickly for %d s...\n", time);
105
106 int c = 0;
107 nsecs_t start = systemTime();
108 nsecs_t t;
109 do {
110 glClearColor(1,0,0,0);
111 glClear(GL_COLOR_BUFFER_BIT);
112 eglSwapBuffers(dpy, surface);
113 glClearColor(0,1,0,0);
114 glClear(GL_COLOR_BUFFER_BIT);
115 eglSwapBuffers(dpy, surface);
116 t = systemTime() - start;
117 c += 2;
118 } while (int(ns2s(t))<=time);
119
120 double p = (double(t) / c) / 1000000000.0;
121 printf("refresh-rate is %f fps (%f ms)\n", 1.0f/p, p*1000.0);
122
123 eglTerminate(dpy);
124
125 return 0;
126 }
127