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 <ui/FramebufferNativeWindow.h>
27 #include "EGLUtils.h"
28
29 using namespace android;
30
main(int argc,char ** argv)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 EGLNativeWindowType window = android_createDisplaySurface();
49
50 dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
51 eglInitialize(dpy, &majorVersion, &minorVersion);
52 eglGetConfigs(dpy, NULL, 0, &numConfigs);
53 printf("# configs = %d\n", numConfigs);
54
55 status_t err = EGLUtils::selectConfigForNativeWindow(
56 dpy, configAttribs, window, &config);
57 if (err) {
58 fprintf(stderr, "error: %s", EGLUtils::strerror(eglGetError()));
59 eglTerminate(dpy);
60 return 0;
61 }
62
63 EGLint r,g,b,a, vid;
64 eglGetConfigAttrib(dpy, config, EGL_RED_SIZE, &r);
65 eglGetConfigAttrib(dpy, config, EGL_GREEN_SIZE, &g);
66 eglGetConfigAttrib(dpy, config, EGL_BLUE_SIZE, &b);
67 eglGetConfigAttrib(dpy, config, EGL_ALPHA_SIZE, &a);
68 eglGetConfigAttrib(dpy, config, EGL_NATIVE_VISUAL_ID, &vid);
69
70 surface = eglCreateWindowSurface(dpy, config, window, NULL);
71 if (surface == EGL_NO_SURFACE) {
72 EGLint err = eglGetError();
73 fprintf(stderr, "error: %s, config=%p, format = %d-%d-%d-%d, visual-id = %d\n",
74 EGLUtils::strerror(err), config, r,g,b,a, vid);
75 eglTerminate(dpy);
76 return 0;
77 } else {
78 printf("config=%p, format = %d-%d-%d-%d, visual-id = %d\n",
79 config, r,g,b,a, vid);
80 }
81
82 context = eglCreateContext(dpy, config, NULL, NULL);
83 eglMakeCurrent(dpy, surface, surface, context);
84 eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
85 eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
86
87 printf("w=%d, h=%d\n", w, h);
88
89 glDisable(GL_DITHER);
90 glEnable(GL_BLEND);
91
92 glViewport(0, 0, w, h);
93 glOrthof(0, w, 0, h, 0, 1);
94
95 eglSwapInterval(dpy, 1);
96
97 glClearColor(1,0,0,0);
98 glClear(GL_COLOR_BUFFER_BIT);
99 eglSwapBuffers(dpy, surface);
100
101
102 int time = 10;
103 printf("screen should flash red/green quickly for %d s...\n", time);
104
105 int c = 0;
106 nsecs_t start = systemTime();
107 nsecs_t t;
108 do {
109 glClearColor(1,0,0,0);
110 glClear(GL_COLOR_BUFFER_BIT);
111 eglSwapBuffers(dpy, surface);
112 glClearColor(0,1,0,0);
113 glClear(GL_COLOR_BUFFER_BIT);
114 eglSwapBuffers(dpy, surface);
115 t = systemTime() - start;
116 c += 2;
117 } while (int(ns2s(t))<=time);
118
119 double p = (double(t) / c) / 1000000000.0;
120 printf("refresh-rate is %f fps (%f ms)\n", 1.0f/p, p*1000.0);
121
122 eglTerminate(dpy);
123
124 return 0;
125 }
126