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 #define LOG_TAG "fillrate"
19
20 #include <unistd.h>
21 #include <stdlib.h>
22 #include <stdio.h>
23
24 #include <EGL/egl.h>
25 #include <GLES/gl.h>
26 #include <GLES/glext.h>
27
28 #include <utils/StopWatch.h>
29 #include <ui/FramebufferNativeWindow.h>
30 #include <ui/EGLUtils.h>
31
32 using namespace android;
33
main(int argc,char ** argv)34 int main(int argc, char** argv)
35 {
36 EGLint configAttribs[] = {
37 EGL_DEPTH_SIZE, 0,
38 EGL_NONE
39 };
40
41 EGLint majorVersion;
42 EGLint minorVersion;
43 EGLContext context;
44 EGLConfig config;
45 EGLSurface surface;
46 EGLint w, h;
47 EGLDisplay dpy;
48
49 EGLNativeWindowType window = android_createDisplaySurface();
50
51 dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
52 eglInitialize(dpy, &majorVersion, &minorVersion);
53
54 status_t err = EGLUtils::selectConfigForNativeWindow(
55 dpy, configAttribs, window, &config);
56 if (err) {
57 fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n");
58 return 0;
59 }
60
61 surface = eglCreateWindowSurface(dpy, config, window, NULL);
62 context = eglCreateContext(dpy, config, NULL, NULL);
63 eglMakeCurrent(dpy, surface, surface, context);
64 eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
65 eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
66
67 printf("w=%d, h=%d\n", w, h);
68
69 glBindTexture(GL_TEXTURE_2D, 0);
70 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
71 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
72 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
73 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
74 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
75 glDisable(GL_DITHER);
76 glDisable(GL_BLEND);
77 glEnable(GL_TEXTURE_2D);
78 glColor4f(1,1,1,1);
79
80
81 // default pack-alignment is 4
82 const uint16_t t16[64] = { 0xFFFF, 0, 0xF800, 0, 0x07E0, 0, 0x001F, 0 };
83
84 const GLfloat vertices[4][2] = {
85 { w/2, 0 },
86 { w/2, h }
87 };
88
89 const GLfloat texCoords[4][2] = {
90 { 0, 0 },
91 { 1, 1 }
92 };
93
94 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 4, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, t16);
95
96 glViewport(0, 0, w, h);
97 glMatrixMode(GL_PROJECTION);
98 glLoadIdentity();
99 glOrthof(0, w, 0, h, 0, 1);
100
101 glEnableClientState(GL_VERTEX_ARRAY);
102 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
103 glVertexPointer(2, GL_FLOAT, 0, vertices);
104 glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
105
106 glClearColor(0,0,0,0);
107 glClear(GL_COLOR_BUFFER_BIT);
108 glDrawArrays(GL_LINES, 0, 2);
109 eglSwapBuffers(dpy, surface);
110
111 usleep(5*1000000);
112
113 eglTerminate(dpy);
114
115 return 0;
116 }
117