Mercurial > hg > octave-nkf
annotate src/gl-render.h @ 12134:6c54ad0fde04 release-3-4-x ss-3-3-90
update copyright and version info for release branch
| author | John W. Eaton <jwe@octave.org> |
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| date | Sat, 22 Jan 2011 13:50:32 -0500 |
| parents | 85f9a5b211fd |
| children | 6ba28900706b |
| rev | line source |
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1 /* |
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2 |
| 11523 | 3 Copyright (C) 2008-2011 Michael Goffioul |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 3 of the License, or (at your |
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10 option) any later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #if !defined (gl_render_h) |
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24 #define gl_render_h 1 |
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25 |
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26 #ifdef HAVE_WINDOWS_H |
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27 #define WIN32_LEAN_AND_MEAN |
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28 #include <windows.h> |
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29 #endif |
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30 |
| 7945 | 31 #ifdef HAVE_GL_GL_H |
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32 #include <GL/gl.h> |
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33 #elif defined HAVE_OPENGL_GL_H || defined HAVE_FRAMEWORK_OPENGL |
| 7945 | 34 #include <OpenGL/gl.h> |
| 35 #endif | |
| 36 | |
| 37 #ifdef HAVE_GL_GLU_H | |
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38 #include <GL/glu.h> |
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39 #elif defined HAVE_OPENGL_GLU_H || defined HAVE_FRAMEWORK_OPENGL |
| 7945 | 40 #include <OpenGL/glu.h> |
| 41 #endif | |
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42 |
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43 #include "graphics.h" |
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44 #include "txt-eng-ft.h" |
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45 |
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46 class |
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47 OCTINTERP_API |
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48 opengl_renderer |
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49 { |
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50 public: |
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51 opengl_renderer (void) |
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52 : toolkit (), xform (), xmin (), xmax (), ymin (), ymax (), |
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53 zmin (), zmax (), xZ1 (), xZ2 (), marker_id (), filled_marker_id (), |
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54 camera_pos (), camera_dir () |
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55 #if HAVE_FREETYPE |
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56 , text_renderer () |
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57 #endif |
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58 { } |
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59 |
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60 virtual ~opengl_renderer (void) { } |
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61 |
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62 virtual void draw (const graphics_handle& h) |
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63 { draw (gh_manager::get_object (h)); } |
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64 |
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65 virtual void draw (const graphics_object& go); |
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66 |
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67 virtual void draw (const Matrix& hlist) |
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68 { |
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69 int len = hlist.length (); |
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70 |
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71 for (int i = len-1; i >= 0; i--) |
| 10313 | 72 { |
| 73 graphics_handle h = gh_manager::lookup (hlist(i)); | |
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74 |
| 10313 | 75 if (h.ok ()) |
| 76 draw (h); | |
| 77 } | |
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78 } |
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79 |
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80 virtual void set_viewport (int w, int h); |
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81 virtual graphics_xform get_transform (void) const { return xform; } |
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82 |
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83 protected: |
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84 virtual void draw_figure (const figure::properties& props); |
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85 virtual void draw_axes (const axes::properties& props); |
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86 virtual void draw_line (const line::properties& props); |
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87 virtual void draw_surface (const surface::properties& props); |
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88 virtual void draw_patch (const patch::properties& props); |
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89 virtual void draw_hggroup (const hggroup::properties& props); |
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90 virtual void draw_text (const text::properties& props); |
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91 virtual void draw_image (const image::properties& props); |
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92 |
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93 virtual void set_color (const Matrix& c); |
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94 virtual void set_polygon_offset (bool on, double offset = 0.0); |
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95 virtual void set_linewidth (float w); |
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96 virtual void set_linestyle (const std::string& s, bool stipple = false); |
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97 virtual void set_clipbox (double x1, double x2, double y1, double y2, |
| 10313 | 98 double z1, double z2); |
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99 virtual void set_clipping (bool on); |
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100 virtual void set_font (const base_properties& props); |
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101 |
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102 virtual void init_marker (const std::string& m, double size, float width); |
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103 virtual void end_marker (void); |
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104 virtual void draw_marker (double x, double y, double z, |
| 10313 | 105 const Matrix& lc, const Matrix& fc); |
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106 |
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107 virtual void text_to_pixels (const std::string& txt, |
| 10313 | 108 uint8NDArray& pixels, |
| 109 Matrix& bbox, | |
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110 int halign = 0, int valign = 0, |
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111 double rotation = 0.0); |
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112 |
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113 virtual Matrix render_text (const std::string& txt, |
| 10313 | 114 double x, double y, double z, |
| 115 int halign, int valign, double rotation = 0.0); | |
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116 |
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117 virtual void draw_pixels (GLsizei w, GLsizei h, GLenum format, |
| 10313 | 118 GLenum type, const GLvoid *data); |
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119 |
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120 virtual void render_grid (std::string& gridstyle, Matrix& ticks, |
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121 double lim1, double lim2, |
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122 double p1, double p1N, double p2, double p2N, |
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123 int xyz, bool is_3D); |
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124 |
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125 virtual void render_tickmarks(Matrix& ticks, double lim1, double lim2, |
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126 double p1, double p1N, double p2, double p2N, |
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127 double dx, double dy, double dz, |
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128 int xyz, bool doubleside); |
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129 |
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130 virtual void render_ticktexts(Matrix& ticks, string_vector& ticklabels, |
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131 double lim1, double lim2, |
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132 double p1, double p2, |
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133 int xyz, int ha, int va, |
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134 int& wmax, int& hmax); |
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135 |
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136 private: |
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137 opengl_renderer (const opengl_renderer&) |
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138 : toolkit (), xform (), xmin (), xmax (), ymin (), ymax (), |
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139 zmin (), zmax (), xZ1 (), xZ2 (), marker_id (), filled_marker_id (), |
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140 camera_pos (), camera_dir () |
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141 #if HAVE_FREETYPE |
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142 , text_renderer () |
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143 #endif |
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144 { } |
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145 |
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146 opengl_renderer& operator = (const opengl_renderer&) |
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147 { return *this; } |
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148 |
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149 bool is_nan_or_inf (double x, double y, double z) const |
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150 { |
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151 return (xisnan (x) || xisnan (y) || xisnan (z) |
| 10313 | 152 || xisinf (x) || xisinf (y) || xisinf (z)); |
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153 } |
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154 |
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155 octave_uint8 clip_code (double x, double y, double z) const |
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156 { |
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157 return ((x < xmin ? 1 : 0) |
| 10313 | 158 | (x > xmax ? 1 : 0) << 1 |
| 159 | (y < ymin ? 1 : 0) << 2 | |
| 160 | (y > ymax ? 1 : 0) << 3 | |
| 161 | (z < zmin ? 1 : 0) << 4 | |
| 162 | (z > zmax ? 1 : 0) << 5 | |
| 163 | (is_nan_or_inf (x, y, z) ? 0 : 1) << 6); | |
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164 } |
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165 |
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166 unsigned int make_marker_list (const std::string& m, double size, |
| 10313 | 167 bool filled) const; |
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168 |
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169 private: |
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170 // The graphics toolkit associated with the figure being rendered. |
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171 graphics_toolkit toolkit; |
| 7869 | 172 |
| 173 // axes transformation data | |
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174 graphics_xform xform; |
| 7869 | 175 |
| 176 // axis limits in model scaled coordinate | |
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177 double xmin, xmax; |
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178 double ymin, ymax; |
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179 double zmin, zmax; |
| 7869 | 180 |
| 181 // Z projection limits in windows coordinate | |
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182 double xZ1, xZ2; |
| 7869 | 183 |
| 184 // call lists identifiers for markers | |
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185 unsigned int marker_id, filled_marker_id; |
| 7869 | 186 |
| 187 // camera information for primitive sorting | |
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188 ColumnVector camera_pos, camera_dir; |
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189 |
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190 #if HAVE_FREETYPE |
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191 // freetype render, used for text rendering |
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192 ft_render text_renderer; |
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193 #endif |
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194 |
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195 private: |
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196 class patch_tesselator; |
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197 }; |
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198 |
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199 #endif |