filter.cpp revision cba73d3210c18f0fbcac2e9b5b95a717d4a6d977 
1#include <stdlib.h>
2#include <stdio.h>
3
4#include <EGL/egl.h>
5#include <GLES/gl.h>
6#include <GLES/glext.h>
7
8#include <ui/FramebufferNativeWindow.h>
9#include <ui/EGLUtils.h>
10
11using namespace android;
12
13int main(int argc, char** argv)
14{
15    if (argc!=2 && argc!=3) {
16        printf("usage: %s <0-6> [pbuffer]\n", argv[0]);
17        return 0;
18    }
19
20    const int test = atoi(argv[1]);
21    int usePbuffer = argc==3 && !strcmp(argv[2], "pbuffer");
22    EGLint s_configAttribs[] = {
23         EGL_SURFACE_TYPE, EGL_PBUFFER_BIT|EGL_WINDOW_BIT,
24         EGL_RED_SIZE,       5,
25         EGL_GREEN_SIZE,     6,
26         EGL_BLUE_SIZE,      5,
27         EGL_NONE
28     };
29
30     EGLint numConfigs = -1;
31     EGLint majorVersion;
32     EGLint minorVersion;
33     EGLConfig config;
34     EGLContext context;
35     EGLSurface surface;
36     EGLint w, h;
37
38     EGLDisplay dpy;
39
40     EGLNativeWindowType window = 0;
41     if (!usePbuffer) {
42         window = android_createDisplaySurface();
43     }
44
45     dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
46     eglInitialize(dpy, &majorVersion, &minorVersion);
47     if (!usePbuffer) {
48         EGLUtils::selectConfigForNativeWindow(
49                 dpy, s_configAttribs, window, &config);
50         surface = eglCreateWindowSurface(dpy, config, window, NULL);
51     } else {
52         printf("using pbuffer\n");
53         eglChooseConfig(dpy, s_configAttribs, &config, 1, &numConfigs);
54         EGLint attribs[] = { EGL_WIDTH, 320, EGL_HEIGHT, 480, EGL_NONE };
55         surface = eglCreatePbufferSurface(dpy, config, attribs);
56         if (surface == EGL_NO_SURFACE) {
57             printf("eglCreatePbufferSurface error %x\n", eglGetError());
58         }
59     }
60     context = eglCreateContext(dpy, config, NULL, NULL);
61     eglMakeCurrent(dpy, surface, surface, context);
62     eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
63     eglQuerySurface(dpy, surface, EGL_HEIGHT, &h);
64     GLint dim = w<h ? w : h;
65
66     glViewport(0, 0, w, h);
67     glMatrixMode(GL_PROJECTION);
68     glLoadIdentity();
69     glOrthof(0, w, h, 0, 0, 1);
70
71     glClearColor(0,0,0,0);
72     glClear(GL_COLOR_BUFFER_BIT);
73
74     GLint crop[4] = { 0, 4, 4, -4 };
75     glBindTexture(GL_TEXTURE_2D, 0);
76     glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
77     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
78     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
79     glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
80     glEnable(GL_TEXTURE_2D);
81     glColor4f(1,1,1,1);
82
83     // packing is always 4
84     uint8_t t8[]  = {
85             0x00, 0x55, 0x00, 0x55,
86             0xAA, 0xFF, 0xAA, 0xFF,
87             0x00, 0x55, 0x00, 0x55,
88             0xAA, 0xFF, 0xAA, 0xFF  };
89
90     uint16_t t16[]  = {
91             0x0000, 0x5555, 0x0000, 0x5555,
92             0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF,
93             0x0000, 0x5555, 0x0000, 0x5555,
94             0xAAAA, 0xFFFF, 0xAAAA, 0xFFFF  };
95
96     uint16_t t5551[]  = {
97             0x0000, 0xFFFF, 0x0000, 0xFFFF,
98             0xFFFF, 0x0000, 0xFFFF, 0x0000,
99             0x0000, 0xFFFF, 0x0000, 0xFFFF,
100             0xFFFF, 0x0000, 0xFFFF, 0x0000  };
101
102     uint32_t t32[]  = {
103             0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFFFF0000,
104             0xFF00FF00, 0xFFFF0000, 0xFF000000, 0xFF0000FF,
105             0xFF00FFFF, 0xFF00FF00, 0x00FF00FF, 0xFFFFFF00,
106             0xFF000000, 0xFFFF00FF, 0xFF00FFFF, 0xFFFFFFFF
107     };
108
109     switch(test)
110     {
111     case 1:
112         glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE,
113                 4, 4, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, t8);
114         break;
115     case 2:
116         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
117                 4, 4, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, t16);
118         break;
119     case 3:
120         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
121                 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, t16);
122         break;
123     case 4:
124         glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA,
125                 4, 4, 0, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, t16);
126         break;
127     case 5:
128         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
129                 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, t5551);
130         break;
131     case 6:
132         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
133                 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, t32);
134         break;
135     }
136
137     //glDrawTexiOES(0, 0, 0, dim, dim);
138
139     const GLfloat vertices[4][2] = {
140             { 0,    0   },
141             { 0,    dim },
142             { dim,  dim },
143             { dim,  0   }
144     };
145
146     const GLfloat texCoords[4][2] = {
147             { 0,  0 },
148             { 0,  1 },
149             { 1,  1 },
150             { 1,  0 }
151     };
152
153     if (!usePbuffer) {
154         eglSwapBuffers(dpy, surface);
155     }
156
157     glMatrixMode(GL_MODELVIEW);
158     //glEnable(GL_SCISSOR_TEST);
159     //glScissor(0,dim,dim,h-dim);
160
161     for (int y=0 ; y<dim ; y++) {
162         glLoadIdentity();
163         glTranslatef(0, -y, 0);
164
165         glClear(GL_COLOR_BUFFER_BIT);
166         glEnableClientState(GL_VERTEX_ARRAY);
167         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
168         glVertexPointer(2, GL_FLOAT, 0, vertices);
169         glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
170         glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
171
172
173         if (!usePbuffer) {
174             eglSwapBuffers(dpy, surface);
175         } else {
176             glFinish();
177         }
178     }
179
180
181     eglTerminate(dpy);
182     return 0;
183}
184