bowler17 / gl (public) (License: Unspecified) (since 2017-03-05) (hash sha1)
samples
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master nuild wrench
List of commits:
Subject Hash Author Date (UTC)
c++ t.c --target=arm-linux-gnu `pkg-config --libs --cflags gtk+-3.0 epoxy ` -o op -lOpenImageIO -lopencv_videoio 7ddf326fbc3789c95efafe10b0381290ab37632f Alexey 2017-03-05 15:32:41
Commit 7ddf326fbc3789c95efafe10b0381290ab37632f - c++ t.c --target=arm-linux-gnu `pkg-config --libs --cflags gtk+-3.0 epoxy ` -o op -lOpenImageIO -lopencv_videoio
gtk3 opencv:
...clone opencv

cd opencv
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/ -D BUILD_opencv_videoio=ON -D WITH_IPP=OFF -D WITH_GTK=ON -D WITH_GTK3=ON -D WITH_FFMPEG=ON -D WITH_V4L=ON -D WITH_LIBV4L=ON WITH_HAL=ON WITH_OPENGL=ON WITH_VIDEOINPUT=ON ../

...target is:FFMPEG ON , DC1394(both) OFF .
I'd gain it by 'sudo apt install *highgui*' and 'sudo apt purge libraw1394-* libraw1394-tools* libdc1394-22-*'

make
sudo make install
sudo ldconfig

sudo apt install libopenimageio*
locate libopencv_highgui.so.2.4
sudo rm (dir that 'locate ..' return)/libopencv_highgui.so.2.4
sudo link /usr/lib/libopencv_highgui.so.3.2.0 (dir that 'locate ..' return)/libopencv_highgui.so.2.4
Author: Alexey
Author date (UTC): 2017-03-05 15:32
Committer name: Alexey
Committer date (UTC): 2017-03-05 15:32
Parent(s):
Signing key:
Tree: cc14f0fc34df0d40ae1d0f5cec010f3f54fdc338
File Lines added Lines deleted
161208ap5410_fpx.jpg 0 0
t.c 317 0
File 161208ap5410_fpx.jpg added (mode: 100644) (index 0000000..ae92b44)
File t.c added (mode: 100644) (index 0000000..5fa1eb7)
1 #include <OpenImageIO/imageio.h>
2 #include <OpenImageIO/imagebuf.h>
3 #include <OpenImageIO/imagebufalgo.h>
4
5
6 #include <epoxy/gl.h>
7 #include <gtk/gtk.h>
8 #include <glm/glm.hpp>
9 #include <glm/gtc/matrix_transform.hpp>
10 #include <glm/gtc/type_ptr.hpp>
11 OIIO_NAMESPACE_USING
12
13
14
15
16
17 const GLchar *vert_src ="\n" \
18 "#version 330 \n" \
19 " #extension GL_ARB_explicit_uniform_location : enable \n" \
20 " out vec2 kn; \n" \
21 " \n" \
22 " out vec4 knn; \n" \
23 " layout(location = 1) in vec2 in_p; \n" \
24 " layout(location = 0) in vec4 in_position; \n" \
25 " layout(location =10)uniform mat4 projection; \n" \
26 "void main() \n" \
27 "{ \n" \
28 " gl_Position = projection*in_position; \n" \
29 "knn=in_position ; \n" \
30 "kn=in_p ; \n" \
31 "// gl_Position = in_position; \n" \
32 "} \n" ;
33 const GLchar *frag_src ="\n" \
34 "#version 330 \n" \
35 " #extension GL_ARB_explicit_uniform_location : enable \n" \
36 "layout(location =11)uniform sampler2D t; \n" \
37 " vec4 b; \n" \
38 " in vec4 knn; \n" \
39 " in vec2 kn; \n" \
40 "void main (void) \n" \
41 "{ \n" \
42 "// if(gl_FrontFacing){ \n" \
43
44 "// b= vec4(gl_FragCoord.x/10.0,gl_FragCoord.y/357.0,gl_FragCoord.z* 0.5,1.0); \n" \
45 "// gl_FragColor = vec4(0.021,abs(knn.x-0.3)*0.5+abs(knn.z-0.7)*0.353+abs(0.583*knn.y-0.1)-0.2 ,1.215*knn.z+0.583*knn.y +.0357*knn.x, 1.0); \n" \
46 " // } \n" \
47 " if(gl_FrontFacing) \n" \
48 " gl_FragColor = texture( t, kn); \n" \
49 "else discard; \n" \
50 "} \n";
51
52
53
54
55 glm::mat4 yt,b;
56 ImageSpec c;
57 GLushort trr[1024*1024*4];
58
59
60 GLuint gl_vao, gl_buffer, gl_program;
61 GLuint vertexT,tpr,tpra;
62 static gboolean realise(GtkGLArea *area, GdkGLContext *context)
63 {
64
65
66 gtk_gl_area_make_current(GTK_GL_AREA(area));
67 if (gtk_gl_area_get_error (GTK_GL_AREA(area)) != NULL)
68 {
69 printf("failed to initialiize buffers\n");
70 return false;
71 }
72
73 GLfloat t[] =
74 {
75
76 0.0,1.0,
77 0.0,0.0,
78 1.0,1.0,
79
80 0.0,1.0,
81 1.0,1.0,
82 1.0,0.0,
83
84
85 0.0,1.0,
86 0.0,0.0,
87 1.0,1.0,
88
89 0.0,1.0,
90 1.0,1.0,
91 1.0,0.0,
92
93
94 0.0,1.0,
95 0.0,0.0,
96 1.0,1.0,
97
98 0.0,1.0,
99 1.0,1.0,
100 1.0,0.0,
101
102
103 0.0,1.0,
104 0.0,0.0,
105 1.0,1.0,
106
107 0.0,1.0,
108 1.0,1.0,
109 1.0,0.0,
110
111
112 0.0,1.0,
113 0.0,0.0,
114 1.0,1.0,
115
116 0.0,1.0,
117 1.0,1.0,
118 1.0,0.0,
119 0.0,1.0,
120 0.0,0.0,
121 1.0,1.0,
122
123 0.0,1.0,
124 1.0,1.0,
125 1.0,0.0
126 };
127
128
129 GLfloat verts[] =
130 {
131 +0.7,+0.7,+0.7,
132 -0.7,0.7, 0.7,
133 -0.7,+0.7, -0.7,
134
135 0.7,+0.7, -0.7,
136 +0.7,+0.7,+0.7,
137 -0.7,+0.7, -0.7,
138
139 -0.7,-0.7, +0.7,
140 +0.7,+0.7,+0.7,
141 -0.7,0.7, 0.7,
142
143 +0.7,+0.7,+0.7,
144 -0.7,-0.7, +0.7,
145 0.7,-0.7, 0.7,
146
147 +0.7,-0.7,-0.7,
148 -0.7,-0.7,-0.7,
149 0.7,+0.7, -0.7,
150
151 -0.7,+0.7, -0.7,
152 0.7,+0.7, -0.7,
153 -0.7,-0.7, -0.7,
154
155
156
157 -0.7,-0.7, +0.7,
158 -0.7,-0.7, -0.7,
159 0.7,-0.7, 0.7,
160
161
162
163 +0.7,-0.7, -0.7,
164
165 0.7,-0.7, 0.7,
166
167 -0.7,-0.7, -0.7,
168
169 0.7,+0.7, -0.7,
170 +0.7,+0.7,+0.7,
171 +0.7,-0.7, -0.7,
172
173 0.7,-0.7, -0.7,
174 +0.7,+0.7,+0.7,
175
176
177 0.7,-0.7, 0.7,
178
179
180 -0.7,-0.7, -0.7,
181 -0.7,0.7, 0.7,
182 -0.7,+0.7, -0.7,
183
184
185
186 -0.7,-0.7, +0.7,
187 -0.7,0.7, 0.7,
188 -0.7,-0.7, -0.7
189
190 };
191 b=glm::lookAt(glm::vec3(1.75,-2.38,1.4444), glm::vec3( 0., 0., 0.),glm::vec3( 0.,0.2,-00.));
192 yt=glm::perspective(45., 1., 1.2, 300.);
193 b=yt*b*glm::mat4(1.);
194
195 //b=glm::lookAt(glm::vec3(0., 0.,-1.),glm::vec3( 0., 0., 0.),glm::vec3( 0.,025.,-1.));
196 //yt=yt*b;
197
198
199 c.width=1024;;
200 c.height=1024;;
201
202 c.nchannels=4;
203 c.x=0;
204 c.y=0;
205 c.format=TypeDesc::UINT8;
206
207 ImageBuf k(c,trr);
208 ImageBuf h("161208ap5410_fpx.jpg");
209 h.read();
210 k.copy_pixels(h);
211 h.clear ();
212 //ImageBufAlgo::noise(k,"gaussian");
213
214
215 GLuint frag_shader, vert_shader;
216 frag_shader = glCreateShader(GL_FRAGMENT_SHADER);
217 vert_shader = glCreateShader(GL_VERTEX_SHADER);
218
219
220 glShaderSource(frag_shader, 1, &frag_src, NULL);
221 glShaderSource(vert_shader, 1, &vert_src, NULL);
222
223 glCompileShader(frag_shader);
224 glCompileShader(vert_shader);
225
226 gl_program = glCreateProgram();
227 glAttachShader(gl_program, frag_shader);
228 glAttachShader(gl_program, vert_shader);
229 glLinkProgram(gl_program);
230
231 // glUniformMatrix4fv(1, 1, 0, glm::value_ptr(b));
232
233 glGenVertexArrays(1, &gl_vao);
234
235 glBindVertexArray(gl_vao);
236
237 glGenBuffers(1, &gl_buffer);
238 glBindBuffer(GL_ARRAY_BUFFER, gl_buffer);
239 glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STATIC_DRAW);
240
241 glEnableVertexAttribArray(0);
242 glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)0);
243
244
245 glGenBuffers(1, &tpr);
246 glBindBuffer(GL_ARRAY_BUFFER,tpr );
247
248 glBufferData(GL_ARRAY_BUFFER, sizeof(t), t, GL_STATIC_DRAW);
249 glEnableVertexAttribArray(1);
250 glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, (void*)0);
251
252 glBindVertexArray(0);
253
254 //glGenTextures(1, &vertexT);
255 //glBindBuffer(GL_ARRAY_BUFFER, vertexT);
256 // glActiveTexture(GL_TEXTURE0);
257 // glBindTexture(GL_TEXTURE_2D, vertexT);
258
259 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
260 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
261 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1024, 1024, 0, GL_RGBA, GL_UNSIGNED_BYTE,trr);
262
263 return TRUE;
264 }
265
266 static gboolean render(GtkGLArea *area, GdkGLContext *context)
267 {
268
269
270
271
272
273
274
275 glUseProgram(gl_program);
276 glUniformMatrix4fv(10, 1, 0, &b[0][0]);
277 glUniform1i(11, 0);
278
279 glBindVertexArray(gl_vao);
280
281
282 glDrawArrays(GL_TRIANGLES,0,36 );
283
284 glBindVertexArray (0);
285 glUseProgram (0);
286
287
288 glFlush();
289
290 return TRUE;
291 }
292
293 int main(int argc, char** argv)
294 {
295 gtk_init(&argc, &argv);
296
297 GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL),
298 *gl_area = gtk_gl_area_new();
299
300 g_signal_connect(window, "delete-event", G_CALLBACK(gtk_main_quit), NULL);
301 g_signal_connect(gl_area, "realize", G_CALLBACK(realise), NULL);
302 g_signal_connect(gl_area, "render", G_CALLBACK(render), NULL);
303
304 gtk_container_add(GTK_CONTAINER(window), gl_area);
305
306
307
308 gtk_widget_show_all(window);
309
310 gtk_main();
311
312 return 0;
313 }
314
315
316
317
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