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00036 #include <iostream>
00037
00038 #include "vlr/displayGL.h"
00039
00040 namespace vlr {
00041
00042 template<class T> bool DisplayGL::internalPaint2d() {
00043 return false;
00044 }
00045
00046 template<> bool DisplayGL::internalPaint2d<unsigned char>() {
00047 unsigned char* data = &static_cast<Image<unsigned char>*> (imgBuf)->data()[slice_offset_];
00048 glTexImage2D(texType, 0, GL_RGBA, imgBuf->width(), imgBuf->height(), 0, bufColorFormat, GL_UNSIGNED_BYTE, data);
00049
00050 return true;
00051 }
00052
00053 template<> bool DisplayGL::internalPaint2d<char>() {
00054 char* data = &static_cast<Image<char>*> (imgBuf)->data()[slice_offset_];
00055 glTexImage2D(texType, 0, GL_RGBA, imgBuf->width(), imgBuf->height(), 0, bufColorFormat, GL_BYTE, data);
00056 return true;
00057 }
00058
00059 template<> bool DisplayGL::internalPaint2d<unsigned short>() {
00060 unsigned short* data = &static_cast<Image<unsigned short>*> (imgBuf)->data()[slice_offset_];
00061 glTexImage2D(texType, 0, GL_RGBA, imgBuf->width(), imgBuf->height(), 0, bufColorFormat, GL_UNSIGNED_SHORT, data);
00062 return true;
00063 }
00064
00065 template<> bool DisplayGL::internalPaint2d<short>() {
00066 short* data = &static_cast<Image<short>*> (imgBuf)->data()[slice_offset_];
00067 glTexImage2D(texType, 0, GL_RGBA, imgBuf->width(), imgBuf->height(), 0, bufColorFormat, GL_SHORT, data);
00068 return true;
00069 }
00070
00071 template<> bool DisplayGL::internalPaint2d<unsigned int>() {
00072 unsigned int* data = &static_cast<Image<unsigned int>*> (imgBuf)->data()[slice_offset_];
00073 glTexImage2D(texType, 0, GL_RGBA, imgBuf->width(), imgBuf->height(), 0, bufColorFormat, GL_UNSIGNED_INT, data);
00074 return true;
00075 }
00076
00077 template<> bool DisplayGL::internalPaint2d<int>() {
00078 int* data = &static_cast<Image<int>*> (imgBuf)->data()[slice_offset_];
00079 glTexImage2D(texType, 0, GL_RGBA, imgBuf->width(), imgBuf->height(), 0, bufColorFormat, GL_INT, data);
00080 return true;
00081 }
00082
00083 template<> bool DisplayGL::internalPaint2d<float>() {
00084 float* data = &static_cast<Image<float>*> (imgBuf)->data()[slice_offset_];
00085 glTexImage2D(texType, 0, GL_RGBA, imgBuf->width(), imgBuf->height(), 0, bufColorFormat, GL_FLOAT, data);
00086 return true;
00087 }
00088
00089 template<> bool DisplayGL::internalPaint2d<double>() {
00090 double* data = &static_cast<Image<double>*> (imgBuf)->data()[slice_offset_];
00091 glTexImage2D(texType, 0, GL_RGBA, imgBuf->width(), imgBuf->height(), 0, bufColorFormat, GL_DOUBLE, data);
00092 return true;
00093 }
00094
00095 void DisplayGL::internalPaint2d() {
00096 glMatrixMode(GL_PROJECTION);
00097 glLoadIdentity();
00098 float scaled_width = width()*scale_;
00099 float scaled_height = height()*scale_;
00100 glOrtho(0., scaled_width, 0., scaled_height, -1, 1);
00101 glViewport(0, 0, scaled_width, scaled_height);
00102
00103 glMatrixMode(GL_MODELVIEW);
00104 glLoadIdentity();
00105
00106 glEnable(GL_TEXTURE_2D);
00107 glEnable(GL_TEXTURE_RECTANGLE_ARB);
00108
00109 glBindTexture(texType, imgTexture);
00110
00111
00112 glColor4f(1.0, 1.0, 1.0, 1.0);
00113
00114 if (imgBuf) {
00115 switch(data_type_) {
00116 case TYPE_UCHAR:
00117 internalPaint2d<unsigned char> ();
00118 break;
00119
00120 case TYPE_CHAR:
00121 internalPaint2d<char> ();
00122 break;
00123
00124 case TYPE_USHORT:
00125 internalPaint2d<unsigned short> ();
00126 break;
00127
00128 case TYPE_SHORT:
00129 internalPaint2d<short> ();
00130 break;
00131
00132 case TYPE_UINT:
00133 internalPaint2d<unsigned int> ();
00134 break;
00135
00136 case TYPE_INT:
00137 internalPaint2d<int> ();
00138 break;
00139
00140 case TYPE_FLOAT:
00141 internalPaint2d<float> ();
00142 break;
00143
00144 case TYPE_DOUBLE:
00145 internalPaint2d<float> ();
00146
00147 break;
00148 }
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00178 glEnable(GL_BLEND);
00179 glBegin(GL_QUADS);
00180 glTexCoord2f(0, 0); glVertex2f(0, scaled_height);
00181 glTexCoord2f(width(), 0); glVertex2f(scaled_width, scaled_height);
00182 glTexCoord2f(width(), height()); glVertex2f(scaled_width, 0);
00183 glTexCoord2f(0, height()); glVertex2f(0, 0);
00184 glEnd();
00185 glDisable(GL_BLEND);
00186
00187 glDisable(GL_TEXTURE_2D);
00188 glDisable(GL_TEXTURE_RECTANGLE_ARB);
00189
00190 drawTags2d();
00191 drawCustomTags2d();
00192 }
00193 }
00194
00195 void DisplayGL::drawTags2d() {
00196
00197 std::pair<ImageBase::tagCIter, ImageBase::tagCIter> range;
00198 glDisable(GL_DEPTH_TEST);
00199 glEnable(GL_BLEND);
00200 glEnable(GL_POLYGON_SMOOTH);
00201
00202
00203 imgBuf->lines(range);
00204 glBegin(GL_LINES);
00205 for (ImageBase::tagCIter pit = range.first; pit != range.second; ++pit) {
00206 TagLine* ln = static_cast<TagLine*> ((*pit).second);
00207 glColor4f(ln->r(), ln->g(), ln->b(), ln->a());
00208 glVertex2f(ln->x0()*scale_, height() - 1 - ln->y0()*scale_);
00209 glVertex2f(ln->x1()*scale_, height() - 1 - ln->y1()*scale_);
00210 }
00211 glEnd();
00212
00213 for (ImageBase::tagCIter pit = range.first; pit != range.second; ++pit) {
00214 TagLine* ln = static_cast<TagLine*> ((*pit).second);
00215 glColor4f(ln->r(), ln->g(), ln->b(), ln->a());
00216 fr.drawString2D(ln->label(), ln->x1()*scale_ + crossSize, height() - 1 - ln->y1()*scale_ + crossSize);
00217 }
00218
00219
00220 imgBuf->points(range);
00221
00222 glBegin(GL_LINES);
00223 for (ImageBase::tagCIter pit = range.first; pit != range.second; ++pit) {
00224 TagPoint* pt = static_cast<TagPoint*> ((*pit).second);
00225 glColor4f(pt->r(), pt->g(), pt->b(), pt->a());
00226 glVertex2f(pt->x()*scale_ - crossSize, (height() - 1 - pt->y())*scale_);
00227 glVertex2f(pt->x()*scale_ + crossSize, (height() - 1 - pt->y())*scale_);
00228 glVertex2f(pt->x()*scale_, (height() - 1 - pt->y())*scale_ - crossSize);
00229 glVertex2f(pt->x()*scale_, (height() - 1 - pt->y())*scale_ + crossSize);
00230 }
00231 glEnd();
00232
00233 for (ImageBase::tagCIter pit = range.first; pit != range.second; ++pit) {
00234 TagPoint* pt = static_cast<TagPoint*> ((*pit).second);
00235 glColor4f(pt->r(), pt->g(), pt->b(), pt->a());
00236 fr.drawString2D(pt->label(), pt->x()*scale_ + crossSize, (height() - 1 - pt->y())*scale_ + crossSize);
00237 }
00238
00239 glDisable(GL_POLYGON_SMOOTH);
00240 glDisable(GL_BLEND);
00241 glEnable(GL_DEPTH_TEST);
00242 }
00243
00244 }
