1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
//
// C++ Implementation: k9glwidget
//
// Description:
//
//
// Author: Jean-Michel PETIT <[email protected]>, (C) 2006
//
// Copyright: See COPYING file that comes with this distribution
//
//
#include "k9glwidget.h"
#ifdef HAVE_OPENGL
#include <tqsize.h>
#include <tqapplication.h>
#include <tqdatetime.h>
#include <cstdlib>
#include "ac.h"
#include <X11/Xlib.h>
k9GLWidget::k9GLWidget(TQWidget *parent, const char *name):TQGLWidget(parent, name) {
XMapRaised(x11Display(),winId());
m_buffer=NULL;
m_height=0;
m_width=0;
library=new TQLibrary("GL.so.1");
glClear = (glClear_t) library->resolve( "glClear" );
glRasterPos2i= (glRasterPos2i_t)library->resolve("glRasterPos2i");
glFlush = (glFlush_t)library->resolve("glFlush");
glClearColor =(glClearColor_t)library->resolve("glClearColor");
glShadeModel =(glShadeModel_t)library->resolve("glShadeModel");
glPixelStorei =(glPixelStorei_t)library->resolve("glPixelStorei");
glViewport =(glViewport_t)library->resolve("glViewport");
glMatrixMode =(glMatrixMode_t)library->resolve("glMatrixMode");
glLoadIdentity =(glLoadIdentity_t)library->resolve("glLoadIdentity");
glOrtho =(glOrtho_t)library->resolve("glOrtho");
glPixelZoom=(glPixelZoom_t)library->resolve("glPixelZoom");
glDrawPixels=(glDrawPixels_t)library->resolve("glDrawPixels");
glDisable=(glDisable_t)library->resolve("glDisable");
glPixelTransferi=(glPixelTransferi_t)library->resolve("glPixelTransferi");
glGetString=(glGetString_t)library->resolve("glGetString");
}
k9GLWidget* k9GLWidget::createWidget(TQWidget *parent , const char *name ) {
//XInitThreads();
return new k9GLWidget(parent,name);
}
k9GLWidget::~k9GLWidget() {
if (m_buffer !=NULL)
free(m_buffer);
delete library;
}
void k9GLWidget::paintGL() {
draw();
}
void k9GLWidget::setImage(uchar *_buffer,int _width,int _height,int _len) {
if (tqApp==NULL)
return;
if (tqApp->tryLock() ) {
uchar *buffer=_buffer;
m_width=_width;
m_height=_height;
m_mutex.lock();
if (m_buffer !=NULL)
free(m_buffer);
m_buffer=buffer;
//m_stack.push(buffer);
m_mutex.unlock();
update();
if (tqApp !=NULL)
tqApp->unlock();
} else {
free(_buffer);
}
}
void k9GLWidget::draw() {
XLockDisplay(x11Display());
// uchar *buffer=NULL;
if (m_mutex.tryLock()) {
/* if (!m_stack.isEmpty())
buffer=m_stack.pop();
if (buffer !=NULL) {
if (m_buffer !=NULL)
free(m_buffer);
m_buffer=buffer;
}
*/
if (m_buffer!=NULL) {
int h=height()-2;
int w=width()-2;
GLfloat wratio=(GLfloat)w/(GLfloat)m_width;
GLfloat hratio=(GLfloat)h/(GLfloat)m_height;
GLfloat ratio= wratio < hratio ? wratio:hratio;
glClear(GL_COLOR_BUFFER_BIT);
int top = h-(int) (h -m_height*ratio) /2;
int left = (int) (w -m_width*ratio) /2;
glRasterPos2i (left,top);
glPixelZoom (ratio, -ratio);
glDrawPixels( m_width, m_height, GL_RGBA, GL_UNSIGNED_BYTE, m_buffer );
swapBuffers();
} else {
makeCurrent();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
swapBuffers();
m_mutex.unlock();
}
XUnlockDisplay(x11Display());
}
void k9GLWidget::initializeGL() {
setAutoBufferSwap(FALSE);
glClearColor (0.0, 0.0, 0.0, 0.0);
glShadeModel(GL_FLAT);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glDisable(GL_ALPHA_TEST);
glDisable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glDisable(GL_DITHER);
glDisable(GL_FOG);
glDisable(GL_LIGHTING);
glDisable(GL_LOGIC_OP);
glDisable(GL_STENCIL_TEST);
glDisable(GL_TEXTURE_1D);
glDisable(GL_TEXTURE_2D);
glPixelTransferi(GL_MAP_COLOR, GL_FALSE);
glPixelTransferi(GL_RED_SCALE, 1);
glPixelTransferi(GL_RED_BIAS, 0);
glPixelTransferi(GL_GREEN_SCALE, 1);
glPixelTransferi(GL_GREEN_BIAS, 0);
glPixelTransferi(GL_BLUE_SCALE, 1);
glPixelTransferi(GL_BLUE_BIAS, 0);
glPixelTransferi(GL_ALPHA_SCALE, 1);
glPixelTransferi(GL_ALPHA_BIAS, 0);
/*
* Disable extensions that could slow down glDrawPixels.
*/
const GLubyte* extString = glGetString(GL_EXTENSIONS);
if (extString != NULL) {
if (strstr((char*) extString, "GL_EXT_convolution") != NULL) {
glDisable(GL_CONVOLUTION_1D_EXT);
glDisable(GL_CONVOLUTION_2D_EXT);
glDisable(GL_SEPARABLE_2D_EXT);
}
if (strstr((char*) extString, "GL_EXT_histogram") != NULL) {
glDisable(GL_HISTOGRAM_EXT);
glDisable(GL_MINMAX_EXT);
}
if (strstr((char*) extString, "GL_EXT_texture3D") != NULL) {
glDisable(GL_TEXTURE_3D_EXT);
}
}
}
void k9GLWidget::resizeGL(int w, int h) {
glViewport (0, 0, w, h);
glMatrixMode (GL_PROJECTION);
glLoadIdentity();
glOrtho(0, w,0,h,-1,1);
// glMatrixMode (GL_MODELVIEW);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
#include "k9glwidget.moc"
#endif
|
