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b311480e | 1 | // Created on: 2011-09-20 |
2 | // Created by: Sergey ZERCHANINOV | |
973c2be1 | 3 | // Copyright (c) 2011-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 6 | // |
973c2be1 | 7 | // This library is free software; you can redistribute it and / or modify it |
8 | // under the terms of the GNU Lesser General Public version 2.1 as published | |
9 | // by the Free Software Foundation, with special exception defined in the file | |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
11 | // distribution for complete text of the license and disclaimer of any warranty. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
b311480e | 15 | |
2166f0fa SK |
16 | #include <stdio.h> |
17 | #include <stdlib.h> | |
18 | ||
5f8b738e | 19 | #include <OpenGl_GlCore11.hxx> |
2166f0fa | 20 | #include <OpenGl_tgl_funcs.hxx> |
2166f0fa | 21 | |
3c3131a0 | 22 | #include <Image_AlienPixMap.hxx> |
2166f0fa SK |
23 | #include <Visual3d_Layer.hxx> |
24 | ||
30f0ad28 | 25 | #include <NCollection_Mat4.hxx> |
26 | ||
2166f0fa | 27 | #include <OpenGl_AspectLine.hxx> |
30f0ad28 | 28 | #include <OpenGl_Context.hxx> |
2166f0fa | 29 | #include <OpenGl_Display.hxx> |
30f0ad28 | 30 | #include <OpenGl_Matrix.hxx> |
2166f0fa SK |
31 | #include <OpenGl_Workspace.hxx> |
32 | #include <OpenGl_View.hxx> | |
33 | #include <OpenGl_Trihedron.hxx> | |
34 | #include <OpenGl_GraduatedTrihedron.hxx> | |
35 | #include <OpenGl_PrinterContext.hxx> | |
30f0ad28 | 36 | #include <OpenGl_ShaderManager.hxx> |
37 | #include <OpenGl_ShaderProgram.hxx> | |
59f45b7c | 38 | #include <OpenGl_Structure.hxx> |
2166f0fa | 39 | |
2166f0fa SK |
40 | #define EPSI 0.0001 |
41 | ||
12381341 | 42 | namespace |
43 | { | |
44 | ||
45 | static const GLfloat THE_DEFAULT_AMBIENT[4] = { 0.0f, 0.0f, 0.0f, 1.0f }; | |
46 | static const GLfloat THE_DEFAULT_SPOT_DIR[3] = { 0.0f, 0.0f, -1.0f }; | |
47 | static const GLfloat THE_DEFAULT_SPOT_EXPONENT = 0.0f; | |
48 | static const GLfloat THE_DEFAULT_SPOT_CUTOFF = 180.0f; | |
49 | ||
50 | }; | |
2166f0fa | 51 | |
30f0ad28 | 52 | extern void InitLayerProp (const int theListId); //szvgl: defined in OpenGl_GraphicDriver_Layer.cxx |
2166f0fa SK |
53 | |
54 | /*----------------------------------------------------------------------*/ | |
55 | ||
56 | struct OPENGL_CLIP_PLANE | |
57 | { | |
58 | GLboolean isEnabled; | |
59 | GLdouble Equation[4]; | |
1c35b92f | 60 | DEFINE_STANDARD_ALLOC |
2166f0fa SK |
61 | }; |
62 | ||
63 | /*----------------------------------------------------------------------*/ | |
64 | /* | |
65 | * Fonctions privees | |
66 | */ | |
67 | ||
68 | /*-----------------------------------------------------------------*/ | |
69 | /* | |
70 | * Set des lumieres | |
71 | */ | |
12381341 | 72 | static void bind_light (const OpenGl_Light& theLight, |
4fe9ad57 | 73 | GLenum& theLightGlId, |
74 | Graphic3d_Vec4& theAmbientColor) | |
2166f0fa SK |
75 | { |
76 | // Only 8 lights in OpenGL... | |
12381341 | 77 | if (theLightGlId > GL_LIGHT7) |
2166f0fa | 78 | { |
12381341 | 79 | return; |
2166f0fa SK |
80 | } |
81 | ||
12381341 | 82 | if (theLight.Type == Visual3d_TOLS_AMBIENT) |
2166f0fa | 83 | { |
4fe9ad57 | 84 | // add RGBA intensity of the ambient light |
85 | theAmbientColor += theLight.Color; | |
12381341 | 86 | return; |
87 | } | |
2166f0fa | 88 | |
12381341 | 89 | // the light is a headlight? |
90 | GLint aMatrixModeOld = 0; | |
91 | if (theLight.IsHeadlight) | |
92 | { | |
93 | glGetIntegerv (GL_MATRIX_MODE, &aMatrixModeOld); | |
94 | glMatrixMode (GL_MODELVIEW); | |
95 | glPushMatrix(); | |
96 | glLoadIdentity(); | |
2166f0fa SK |
97 | } |
98 | ||
12381341 | 99 | // setup light type |
100 | switch (theLight.Type) | |
3c3131a0 | 101 | { |
12381341 | 102 | case Visual3d_TOLS_DIRECTIONAL: |
103 | { | |
104 | // if the last parameter of GL_POSITION, is zero, the corresponding light source is a Directional one | |
105 | const OpenGl_Vec4 anInfDir = -theLight.Direction; | |
106 | ||
107 | // to create a realistic effect, set the GL_SPECULAR parameter to the same value as the GL_DIFFUSE. | |
108 | glLightfv (theLightGlId, GL_AMBIENT, THE_DEFAULT_AMBIENT); | |
109 | glLightfv (theLightGlId, GL_DIFFUSE, theLight.Color.GetData()); | |
110 | glLightfv (theLightGlId, GL_SPECULAR, theLight.Color.GetData()); | |
111 | glLightfv (theLightGlId, GL_POSITION, anInfDir.GetData()); | |
112 | glLightfv (theLightGlId, GL_SPOT_DIRECTION, THE_DEFAULT_SPOT_DIR); | |
113 | glLightf (theLightGlId, GL_SPOT_EXPONENT, THE_DEFAULT_SPOT_EXPONENT); | |
114 | glLightf (theLightGlId, GL_SPOT_CUTOFF, THE_DEFAULT_SPOT_CUTOFF); | |
115 | break; | |
116 | } | |
117 | case Visual3d_TOLS_POSITIONAL: | |
118 | { | |
119 | // to create a realistic effect, set the GL_SPECULAR parameter to the same value as the GL_DIFFUSE | |
120 | glLightfv (theLightGlId, GL_AMBIENT, THE_DEFAULT_AMBIENT); | |
121 | glLightfv (theLightGlId, GL_DIFFUSE, theLight.Color.GetData()); | |
122 | glLightfv (theLightGlId, GL_SPECULAR, theLight.Color.GetData()); | |
123 | glLightfv (theLightGlId, GL_POSITION, theLight.Position.GetData()); | |
124 | glLightfv (theLightGlId, GL_SPOT_DIRECTION, THE_DEFAULT_SPOT_DIR); | |
125 | glLightf (theLightGlId, GL_SPOT_EXPONENT, THE_DEFAULT_SPOT_EXPONENT); | |
126 | glLightf (theLightGlId, GL_SPOT_CUTOFF, THE_DEFAULT_SPOT_CUTOFF); | |
127 | glLightf (theLightGlId, GL_CONSTANT_ATTENUATION, theLight.ConstAttenuation()); | |
128 | glLightf (theLightGlId, GL_LINEAR_ATTENUATION, theLight.LinearAttenuation()); | |
129 | glLightf (theLightGlId, GL_QUADRATIC_ATTENUATION, 0.0); | |
130 | break; | |
131 | } | |
132 | case Visual3d_TOLS_SPOT: | |
133 | { | |
134 | glLightfv (theLightGlId, GL_AMBIENT, THE_DEFAULT_AMBIENT); | |
135 | glLightfv (theLightGlId, GL_DIFFUSE, theLight.Color.GetData()); | |
136 | glLightfv (theLightGlId, GL_SPECULAR, theLight.Color.GetData()); | |
137 | glLightfv (theLightGlId, GL_POSITION, theLight.Position.GetData()); | |
138 | glLightfv (theLightGlId, GL_SPOT_DIRECTION, theLight.Direction.GetData()); | |
139 | glLightf (theLightGlId, GL_SPOT_EXPONENT, theLight.Concentration() * 128.0f); | |
140 | glLightf (theLightGlId, GL_SPOT_CUTOFF, (theLight.Angle() * 180.0f) / GLfloat(M_PI)); | |
141 | glLightf (theLightGlId, GL_CONSTANT_ATTENUATION, theLight.ConstAttenuation()); | |
142 | glLightf (theLightGlId, GL_LINEAR_ATTENUATION, theLight.LinearAttenuation()); | |
143 | glLightf (theLightGlId, GL_QUADRATIC_ATTENUATION, 0.0f); | |
144 | break; | |
145 | } | |
2166f0fa SK |
146 | } |
147 | ||
12381341 | 148 | // restore matrix in case of headlight |
149 | if (theLight.IsHeadlight) | |
2166f0fa SK |
150 | { |
151 | glPopMatrix(); | |
12381341 | 152 | glMatrixMode (aMatrixModeOld); |
2166f0fa | 153 | } |
12381341 | 154 | |
155 | glEnable (theLightGlId++); | |
2166f0fa SK |
156 | } |
157 | ||
158 | /*----------------------------------------------------------------------*/ | |
159 | /* | |
160 | * Prototypes | |
161 | */ | |
162 | ||
163 | static void call_util_apply_trans2( float ix, float iy, float iz, matrix3 mat, | |
164 | float *ox, float *oy, float *oz ); | |
165 | static void call_util_mat_mul( matrix3 mat_a, matrix3 mat_b, matrix3 mat_c); | |
166 | ||
167 | /*----------------------------------------------------------------------*/ | |
168 | /* | |
169 | * Fonctions externes | |
170 | */ | |
171 | ||
172 | /* | |
173 | * Evaluates orientation matrix. | |
174 | */ | |
175 | /* OCC18942: obsolete in OCCT6.3, might be removed in further versions! */ | |
176 | void call_func_eval_ori_matrix3 (const point3* vrp, // view reference point | |
177 | const vec3* vpn, // view plane normal | |
178 | const vec3* vup, // view up vector | |
3c3131a0 | 179 | int* err_ind, |
2166f0fa SK |
180 | float mout[4][4]) // OUT view orientation matrix |
181 | { | |
182 | ||
183 | /* Translate to VRP then change the basis. | |
184 | * The old basis is: e1 = < 1, 0, 0>, e2 = < 0, 1, 0>, e3 = < 0, 0, 1>. | |
185 | * The new basis is: ("x" means cross product) | |
186 | * e3' = VPN / |VPN| | |
187 | * e1' = VUP x VPN / |VUP x VPN| | |
188 | * e2' = e3' x e1' | |
189 | * Therefore the transform from old to new is x' = TAx, where: | |
190 | * | |
191 | * | e1'x e2'x e3'x 0 | | 1 0 0 0 | | |
192 | * A = | e1'y e2'y e3'y 0 |, T = | 0 1 0 0 | | |
193 | * | e1'z e2'z e3'z 0 | | 0 0 1 0 | | |
194 | * | 0 0 0 1 | | -vrp.x -vrp.y -vrp.z 1 | | |
195 | * | |
196 | */ | |
197 | ||
198 | /* | |
199 | * These ei's are really ei primes. | |
200 | */ | |
201 | register float (*m)[4][4]; | |
202 | point3 e1, e2, e3, e4; | |
203 | double s, v; | |
204 | ||
205 | /* | |
206 | * e1' = VUP x VPN / |VUP x VPN|, but do the division later. | |
207 | */ | |
208 | e1.x = vup->delta_y * vpn->delta_z - vup->delta_z * vpn->delta_y; | |
209 | e1.y = vup->delta_z * vpn->delta_x - vup->delta_x * vpn->delta_z; | |
210 | e1.z = vup->delta_x * vpn->delta_y - vup->delta_y * vpn->delta_x; | |
211 | s = sqrt( e1.x * e1.x + e1.y * e1.y + e1.z * e1.z); | |
212 | e3.x = vpn->delta_x; | |
213 | e3.y = vpn->delta_y; | |
214 | e3.z = vpn->delta_z; | |
215 | v = sqrt( e3.x * e3.x + e3.y * e3.y + e3.z * e3.z); | |
216 | /* | |
217 | * Check for vup and vpn colinear (zero dot product). | |
218 | */ | |
219 | if ((s > -EPSI) && (s < EPSI)) | |
220 | *err_ind = 2; | |
221 | else | |
222 | /* | |
223 | * Check for a normal vector not null. | |
224 | */ | |
225 | if ((v > -EPSI) && (v < EPSI)) | |
226 | *err_ind = 3; | |
227 | else { | |
228 | /* | |
229 | * Normalize e1 | |
230 | */ | |
231 | e1.x /= ( float )s; | |
232 | e1.y /= ( float )s; | |
233 | e1.z /= ( float )s; | |
234 | /* | |
235 | * e3 = VPN / |VPN| | |
236 | */ | |
237 | e3.x /= ( float )v; | |
238 | e3.y /= ( float )v; | |
239 | e3.z /= ( float )v; | |
240 | /* | |
241 | * e2 = e3 x e1 | |
242 | */ | |
243 | e2.x = e3.y * e1.z - e3.z * e1.y; | |
244 | e2.y = e3.z * e1.x - e3.x * e1.z; | |
245 | e2.z = e3.x * e1.y - e3.y * e1.x; | |
246 | /* | |
247 | * Add the translation | |
248 | */ | |
249 | e4.x = -( e1.x * vrp->x + e1.y * vrp->y + e1.z * vrp->z); | |
250 | e4.y = -( e2.x * vrp->x + e2.y * vrp->y + e2.z * vrp->z); | |
251 | e4.z = -( e3.x * vrp->x + e3.y * vrp->y + e3.z * vrp->z); | |
252 | /* | |
253 | * Homogeneous entries | |
254 | * | |
255 | * | e1.x e2.x e3.x 0.0 | | 1 0 0 0 | | |
256 | * | e1.y e2.y e3.y 0.0 | * | 0 1 0 0 | | |
257 | * | e1.z e2.z e3.z 0.0 | | a b 1 c | | |
258 | * | e4.x e4.y e4.z 1.0 | | 0 0 0 1 | | |
259 | */ | |
260 | ||
261 | m = (float (*)[4][4])mout; | |
262 | ||
263 | (*m)[0][0] = e1.x; | |
264 | (*m)[0][1] = e2.x; | |
265 | (*m)[0][2] = e3.x; | |
266 | (*m)[0][3] = ( float )0.0; | |
267 | ||
268 | (*m)[1][0] = e1.y; | |
269 | (*m)[1][1] = e2.y; | |
270 | (*m)[1][2] = e3.y; | |
271 | (*m)[1][3] = ( float )0.0; | |
272 | ||
273 | (*m)[2][0] = e1.z; | |
274 | (*m)[2][1] = e2.z; | |
275 | (*m)[2][2] = e3.z; | |
276 | (*m)[2][3] = ( float )0.0; | |
277 | ||
278 | (*m)[3][0] = e4.x; | |
279 | (*m)[3][1] = e4.y; | |
280 | (*m)[3][2] = e4.z; | |
281 | (*m)[3][3] = ( float )1.0; | |
282 | ||
283 | *err_ind = 0; | |
284 | } | |
285 | } | |
286 | ||
287 | /*----------------------------------------------------------------------*/ | |
288 | /* | |
289 | * Evaluates mapping matrix. | |
290 | */ | |
291 | /* OCC18942: obsolete in OCCT6.3, might be removed in further versions! */ | |
292 | void call_func_eval_map_matrix3( | |
3c3131a0 | 293 | view_map3 *Map, |
294 | int *err_ind, | |
2166f0fa SK |
295 | matrix3 mat) |
296 | { | |
297 | int i, j; | |
298 | matrix3 Tpar, Spar; | |
299 | matrix3 Tper, Sper; | |
300 | matrix3 Shear; | |
301 | matrix3 Scale; | |
302 | matrix3 Tprp; | |
303 | matrix3 aux_mat1, aux_mat2, aux_mat3; | |
304 | point3 Prp; | |
305 | ||
306 | *err_ind = 0; | |
307 | for (i=0; i<4; i++) | |
308 | for (j=0; j<4; j++) | |
309 | Spar[i][j] = Sper[i][j] = aux_mat1[i][j] = aux_mat2[i][j] = | |
310 | aux_mat3[i][j] = Tper[i][j] = Tpar[i][j] = Tprp[i][j] = | |
311 | Shear[i][j] = Scale[i][j] = ( float )(i == j); | |
312 | ||
313 | Prp.x = Map->proj_ref_point.x; | |
314 | Prp.y = Map->proj_ref_point.y; | |
315 | Prp.z = Map->proj_ref_point.z; | |
316 | ||
317 | /* | |
318 | * Type Parallele | |
3c3131a0 | 319 | */ |
2166f0fa SK |
320 | if (Map->proj_type == TYPE_PARAL) |
321 | { | |
322 | float umid, vmid; | |
323 | point3 temp; | |
324 | ||
325 | #ifdef FMN | |
326 | float cx, cy, gx, gy, xsf, ysf, zsf; | |
327 | float fpd, bpd; | |
328 | float dopx, dopy, dopz; | |
329 | matrix3 tmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
330 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
331 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
332 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
333 | matrix3 smat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
334 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
335 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
336 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
337 | matrix3 shmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
338 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
339 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
340 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
341 | matrix3 tshmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
342 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
343 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
344 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
345 | ||
346 | /* centers */ | |
347 | cx = Map->win.x_min + Map->win.x_max, cx /= ( float )2.0; | |
348 | cy = Map->win.y_min + Map->win.y_max, cy /= ( float )2.0; | |
349 | ||
350 | gx = 2.0/ (Map->win.x_max - Map->win.x_min); | |
351 | gy = 2.0/ (Map->win.y_max - Map->win.y_min); | |
352 | ||
353 | tmat[0][3] = -cx; | |
354 | tmat[1][3] = -cy; | |
355 | tmat[2][3] = (Map->front_plane + Map->back_plane)/(Map->front_plane - Map->back_plane); | |
356 | ||
357 | smat[0][0] = gx; | |
358 | smat[1][1] = gy; | |
359 | smat[2][2] = -2./(Map->front_plane - Map->back_plane); | |
360 | ||
361 | /* scale factors */ | |
362 | dopx = cx - Prp.x; | |
363 | dopy = cy - Prp.y; | |
364 | dopz = - Prp.z; | |
365 | ||
366 | /* map matrix */ | |
367 | shmat[0][2] = -(dopx/dopz); | |
368 | shmat[1][2] = -(dopy/dopz); | |
369 | ||
370 | /* multiply to obtain mapping matrix */ | |
371 | call_util_mat_mul( tmat, shmat, tshmat ); | |
372 | call_util_mat_mul( smat, tshmat, mat ); | |
373 | ||
3c3131a0 | 374 | return; |
2166f0fa SK |
375 | #endif |
376 | ||
377 | /* CAL */ | |
378 | Map->proj_vp.z_min = ( float )0.0; | |
379 | Map->proj_vp.z_max = ( float )1.0; | |
380 | /* CAL */ | |
381 | ||
382 | /* Shear matrix calculation */ | |
383 | umid = ( float )(Map->win.x_min+Map->win.x_max)/( float )2.0; | |
384 | vmid = ( float )(Map->win.y_min+Map->win.y_max)/( float )2.0; | |
385 | if(Prp.z == Map->view_plane){ | |
386 | /* Projection reference point is on the view plane */ | |
387 | *err_ind = 1; | |
388 | return; | |
389 | } | |
390 | Shear[2][0] = ( float )(-1.0) * ((Prp.x-umid)/(Prp.z-Map->view_plane)); | |
391 | Shear[2][1] = ( float )(-1.0) * ((Prp.y-vmid)/(Prp.z-Map->view_plane)); | |
392 | ||
393 | /* | |
394 | * Calculate the lower left coordinate of the view plane | |
395 | * after the Shearing Transformation. | |
396 | */ | |
397 | call_util_apply_trans2(Map->win.x_min, Map->win.y_min, | |
398 | Map->view_plane, Shear, &(temp.x), &(temp.y), &(temp.z)); | |
399 | ||
400 | /* Translate the back plane to the origin */ | |
401 | Tpar[3][0] = ( float )(-1.0) * temp.x; | |
402 | Tpar[3][1] = ( float )(-1.0) * temp.y; | |
403 | Tpar[3][2] = ( float )(-1.0) * Map->back_plane; | |
404 | ||
405 | call_util_mat_mul(Shear, Tpar, aux_mat1); | |
406 | ||
407 | /* Calculation of Scaling transformation */ | |
408 | Spar[0][0] = ( float )1.0 / (Map->win.x_max - Map->win.x_min); | |
409 | Spar[1][1] = ( float )1.0 / (Map->win.y_max - Map->win.y_min); | |
410 | Spar[2][2] = ( float )1.0 / (Map->front_plane - Map->back_plane ); | |
411 | call_util_mat_mul (aux_mat1, Spar, aux_mat2); | |
412 | /* Atlast we transformed view volume to NPC */ | |
413 | ||
414 | /* Translate and scale the view plane to projection view port */ | |
415 | if(Map->proj_vp.x_min < 0.0 || Map->proj_vp.y_min < 0.0 || | |
416 | Map->proj_vp.z_min < 0.0 || Map->proj_vp.x_max > 1.0 || | |
417 | Map->proj_vp.y_max > 1.0 || Map->proj_vp.z_max > 1.0 || | |
418 | Map->proj_vp.x_min > Map->proj_vp.x_max || | |
419 | Map->proj_vp.y_min > Map->proj_vp.y_max || | |
420 | Map->proj_vp.z_min > Map->proj_vp.z_max){ | |
421 | *err_ind = 1; | |
422 | return; | |
423 | } | |
424 | for(i=0; i<4; i++) | |
425 | for(j=0; j<4; j++) | |
426 | aux_mat1[i][j] = (float)(i==j); | |
427 | aux_mat1[0][0] = Map->proj_vp.x_max-Map->proj_vp.x_min; | |
428 | aux_mat1[1][1] = Map->proj_vp.y_max-Map->proj_vp.y_min; | |
429 | aux_mat1[2][2] = Map->proj_vp.z_max-Map->proj_vp.z_min; | |
430 | aux_mat1[3][0] = Map->proj_vp.x_min; | |
431 | aux_mat1[3][1] = Map->proj_vp.y_min; | |
432 | aux_mat1[3][2] = Map->proj_vp.z_min; | |
433 | call_util_mat_mul (aux_mat2, aux_mat1, mat); | |
434 | ||
3c3131a0 | 435 | return; |
436 | } | |
2166f0fa SK |
437 | |
438 | /* | |
439 | * Type Perspective | |
3c3131a0 | 440 | */ |
2166f0fa SK |
441 | else if (Map->proj_type == TYPE_PERSPECT) |
442 | { | |
443 | float umid, vmid; | |
444 | float B, F, V; | |
445 | float Zvmin; | |
446 | ||
447 | /* CAL */ | |
448 | Map->proj_vp.z_min = ( float )0.0; | |
449 | Map->proj_vp.z_max = ( float )1.0; | |
450 | /* CAL */ | |
451 | ||
452 | B = Map->back_plane; | |
453 | F = Map->front_plane; | |
454 | V = Map->view_plane; | |
455 | ||
456 | if(Prp.z == Map->view_plane){ | |
457 | /* Centre of Projection is on the view plane */ | |
458 | *err_ind = 1; | |
459 | return; | |
460 | } | |
461 | if(Map->proj_vp.x_min < 0.0 || Map->proj_vp.y_min < 0.0 || | |
462 | Map->proj_vp.z_min < 0.0 || Map->proj_vp.x_max > 1.0 || | |
463 | Map->proj_vp.y_max > 1.0 || Map->proj_vp.z_max > 1.0 || | |
464 | Map->proj_vp.x_min > Map->proj_vp.x_max || | |
465 | Map->proj_vp.y_min > Map->proj_vp.y_max || | |
466 | Map->proj_vp.z_min > Map->proj_vp.z_max || | |
467 | F < B){ | |
468 | *err_ind = 1; | |
469 | return; | |
470 | } | |
471 | ||
472 | /* This is the transformation to move VRC to Center Of Projection */ | |
473 | Tprp[3][0] = ( float )(-1.0)*Prp.x; | |
474 | Tprp[3][1] = ( float )(-1.0)*Prp.y; | |
475 | Tprp[3][2] = ( float )(-1.0)*Prp.z; | |
476 | ||
477 | /* Calculation of Shear matrix */ | |
478 | umid = ( float )(Map->win.x_min+Map->win.x_max)/( float )2.0-Prp.x; | |
479 | vmid = ( float )(Map->win.y_min+Map->win.y_max)/( float )2.0-Prp.y; | |
480 | Shear[2][0] = ( float )(-1.0)*umid/(Map->view_plane-Prp.z); | |
481 | Shear[2][1] = ( float )(-1.0)*vmid/(Map->view_plane-Prp.z); | |
482 | call_util_mat_mul(Tprp, Shear, aux_mat3); | |
483 | ||
484 | /* Scale the view volume to canonical view volume | |
485 | * Centre of projection at origin. | |
486 | * 0 <= N <= -1, -0.5 <= U <= 0.5, -0.5 <= V <= 0.5 | |
487 | */ | |
488 | Scale[0][0] = (( float )(-1.0)*Prp.z+V)/ | |
489 | ((Map->win.x_max-Map->win.x_min)*(( float )(-1.0)*Prp.z+B)); | |
490 | Scale[1][1] = (( float )(-1.0)*Prp.z+V)/ | |
491 | ((Map->win.y_max-Map->win.y_min)*(( float )(-1.0)*Prp.z+B)); | |
492 | Scale[2][2] = ( float )(-1.0) / (( float )(-1.0)*Prp.z+B); | |
493 | ||
494 | call_util_mat_mul(aux_mat3, Scale, aux_mat1); | |
495 | ||
496 | /* | |
497 | * Transform the Perspective view volume into | |
498 | * Parallel view volume. | |
499 | * Lower left coordinate: (-0.5,-0.5, -1) | |
500 | * Upper right coordinate: (0.5, 0.5, 1.0) | |
501 | */ | |
502 | Zvmin = ( float )(-1.0*(-1.0*Prp.z+F)/(-1.0*Prp.z+B)); | |
503 | aux_mat2[2][2] = ( float )1.0/(( float )1.0+Zvmin); | |
504 | aux_mat2[2][3] = ( float )(-1.0); | |
505 | aux_mat2[3][2] = ( float )(-1.0)*Zvmin*aux_mat2[2][2]; | |
506 | aux_mat2[3][3] = ( float )0.0; | |
507 | call_util_mat_mul(aux_mat1, aux_mat2, Shear); | |
508 | ||
509 | for(i=0; i<4; i++) | |
510 | for(j=0; j<4; j++) | |
511 | aux_mat1[i][j] = aux_mat2[i][j] = (float)(i==j); | |
512 | ||
513 | /* Translate and scale the view plane to projection view port */ | |
514 | aux_mat2[0][0] = (Map->proj_vp.x_max-Map->proj_vp.x_min); | |
515 | aux_mat2[1][1] = (Map->proj_vp.y_max-Map->proj_vp.y_min); | |
516 | aux_mat2[2][2] = (Map->proj_vp.z_max-Map->proj_vp.z_min); | |
517 | aux_mat2[3][0] = aux_mat2[0][0]/( float )2.0+Map->proj_vp.x_min; | |
518 | aux_mat2[3][1] = aux_mat2[1][1]/( float )2.0+Map->proj_vp.y_min; | |
519 | aux_mat2[3][2] = aux_mat2[2][2]+Map->proj_vp.z_min; | |
520 | call_util_mat_mul (Shear, aux_mat2, mat); | |
521 | ||
522 | return; | |
523 | } | |
524 | else | |
525 | *err_ind = 1; | |
526 | } | |
527 | ||
528 | /*----------------------------------------------------------------------*/ | |
529 | ||
530 | static void | |
531 | call_util_apply_trans2( float ix, float iy, float iz, matrix3 mat, | |
532 | float *ox, float *oy, float *oz ) | |
533 | { | |
534 | float temp; | |
535 | *ox = ix*mat[0][0]+iy*mat[1][0]+iz*mat[2][0]+mat[3][0]; | |
536 | *oy = ix*mat[0][1]+iy*mat[1][1]+iz*mat[2][1]+mat[3][1]; | |
537 | *oz = ix*mat[0][2]+iy*mat[1][2]+iz*mat[2][2]+mat[3][2]; | |
538 | temp = ix * mat[0][3]+iy * mat[1][3]+iz * mat[2][3]+mat[3][3]; | |
539 | *ox /= temp; | |
540 | *oy /= temp; | |
541 | *oz /= temp; | |
542 | } | |
543 | ||
544 | /*----------------------------------------------------------------------*/ | |
545 | ||
546 | static void | |
547 | call_util_mat_mul( matrix3 mat_a, matrix3 mat_b, matrix3 mat_c) | |
548 | { | |
549 | int i, j, k; | |
550 | ||
551 | for (i=0; i<4; i++) | |
552 | for (j=0; j<4; j++) | |
553 | for (mat_c[i][j] = ( float )0.0,k=0; k<4; k++) | |
554 | mat_c[i][j] += mat_a[i][k] * mat_b[k][j]; | |
555 | } | |
556 | ||
557 | /*----------------------------------------------------------------------*/ | |
558 | ||
e276548b | 559 | void OpenGl_View::DrawBackground (const Handle(OpenGl_Workspace) &AWorkspace) |
2166f0fa | 560 | { |
2166f0fa SK |
561 | ///////////////////////////////////////////////////////////////////////////// |
562 | // Step 1: Prepare for redraw | |
563 | ||
564 | // Render background | |
565 | if ( (AWorkspace->NamedStatus & OPENGL_NS_WHITEBACK) == 0 && | |
e276548b | 566 | ( myBgTexture.TexId != 0 || myBgGradient.type != Aspect_GFM_NONE ) ) |
2166f0fa SK |
567 | { |
568 | const Standard_Integer aViewWidth = AWorkspace->Width(); | |
569 | const Standard_Integer aViewHeight = AWorkspace->Height(); | |
570 | ||
571 | glPushAttrib( GL_ENABLE_BIT | GL_TEXTURE_BIT ); | |
572 | ||
573 | glMatrixMode( GL_PROJECTION ); | |
574 | glPushMatrix(); | |
575 | glLoadIdentity(); | |
576 | glMatrixMode( GL_MODELVIEW ); | |
577 | glPushMatrix(); | |
578 | glLoadIdentity(); | |
579 | ||
580 | if ( glIsEnabled( GL_DEPTH_TEST ) ) | |
581 | glDisable( GL_DEPTH_TEST ); //push GL_ENABLE_BIT | |
582 | ||
f8b2ed36 | 583 | // drawing bg gradient if: |
584 | // - gradient fill type is not Aspect_GFM_NONE and | |
585 | // - either background texture is no specified or it is drawn in Aspect_FM_CENTERED mode | |
586 | if ( ( myBgGradient.type != Aspect_GFM_NONE ) && | |
e276548b | 587 | ( myBgTexture.TexId == 0 || myBgTexture.Style == Aspect_FM_CENTERED || |
588 | myBgTexture.Style == Aspect_FM_NONE ) ) | |
2166f0fa SK |
589 | { |
590 | Tfloat* corner1 = 0;/* -1,-1*/ | |
591 | Tfloat* corner2 = 0;/* 1,-1*/ | |
592 | Tfloat* corner3 = 0;/* 1, 1*/ | |
593 | Tfloat* corner4 = 0;/* -1, 1*/ | |
594 | Tfloat dcorner1[3]; | |
595 | Tfloat dcorner2[3]; | |
596 | ||
597 | switch( myBgGradient.type ) | |
598 | { | |
e276548b | 599 | case Aspect_GFM_HOR: |
600 | corner1 = myBgGradient.color1.rgb; | |
601 | corner2 = myBgGradient.color2.rgb; | |
602 | corner3 = myBgGradient.color2.rgb; | |
603 | corner4 = myBgGradient.color1.rgb; | |
604 | break; | |
605 | case Aspect_GFM_VER: | |
606 | corner1 = myBgGradient.color2.rgb; | |
607 | corner2 = myBgGradient.color2.rgb; | |
608 | corner3 = myBgGradient.color1.rgb; | |
609 | corner4 = myBgGradient.color1.rgb; | |
610 | break; | |
611 | case Aspect_GFM_DIAG1: | |
612 | corner2 = myBgGradient.color2.rgb; | |
613 | corner4 = myBgGradient.color1.rgb; | |
614 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner2[0] + corner4[0]); | |
615 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner2[1] + corner4[1]); | |
616 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner2[2] + corner4[2]); | |
617 | corner1 = dcorner1; | |
618 | corner3 = dcorner2; | |
619 | break; | |
620 | case Aspect_GFM_DIAG2: | |
621 | corner1 = myBgGradient.color2.rgb; | |
622 | corner3 = myBgGradient.color1.rgb; | |
623 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner1[0] + corner3[0]); | |
624 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner1[1] + corner3[1]); | |
625 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner1[2] + corner3[2]); | |
626 | corner2 = dcorner1; | |
627 | corner4 = dcorner2; | |
628 | break; | |
629 | case Aspect_GFM_CORNER1: | |
630 | corner1 = myBgGradient.color2.rgb; | |
631 | corner2 = myBgGradient.color2.rgb; | |
632 | corner3 = myBgGradient.color2.rgb; | |
633 | corner4 = myBgGradient.color1.rgb; | |
634 | break; | |
635 | case Aspect_GFM_CORNER2: | |
636 | corner1 = myBgGradient.color2.rgb; | |
637 | corner2 = myBgGradient.color2.rgb; | |
638 | corner3 = myBgGradient.color1.rgb; | |
639 | corner4 = myBgGradient.color2.rgb; | |
640 | break; | |
641 | case Aspect_GFM_CORNER3: | |
642 | corner1 = myBgGradient.color2.rgb; | |
643 | corner2 = myBgGradient.color1.rgb; | |
644 | corner3 = myBgGradient.color2.rgb; | |
645 | corner4 = myBgGradient.color2.rgb; | |
646 | break; | |
647 | case Aspect_GFM_CORNER4: | |
648 | corner1 = myBgGradient.color1.rgb; | |
649 | corner2 = myBgGradient.color2.rgb; | |
650 | corner3 = myBgGradient.color2.rgb; | |
651 | corner4 = myBgGradient.color2.rgb; | |
652 | break; | |
653 | default: | |
654 | //printf("gradient background type not right\n"); | |
655 | break; | |
2166f0fa SK |
656 | } |
657 | ||
658 | // Save GL parameters | |
659 | glDisable( GL_LIGHTING ); //push GL_ENABLE_BIT | |
660 | ||
661 | GLint curSM; | |
662 | glGetIntegerv( GL_SHADE_MODEL, &curSM ); | |
663 | if ( curSM != GL_SMOOTH ) | |
664 | glShadeModel( GL_SMOOTH ); //push GL_LIGHTING_BIT | |
665 | ||
666 | glBegin(GL_TRIANGLE_FAN); | |
f8b2ed36 | 667 | if( myBgGradient.type != Aspect_GFM_CORNER1 && myBgGradient.type != Aspect_GFM_CORNER3 ) |
2166f0fa SK |
668 | { |
669 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
670 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
671 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
672 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
3c3131a0 | 673 | } |
f8b2ed36 | 674 | else //if ( myBgGradient.type == Aspect_GFM_CORNER1 || myBgGradient.type == Aspect_GFM_CORNER3 ) |
2166f0fa SK |
675 | { |
676 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
677 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
678 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
679 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
680 | } | |
681 | glEnd(); | |
682 | ||
683 | // Restore GL parameters | |
684 | if ( curSM != GL_SMOOTH ) | |
685 | glShadeModel( curSM ); | |
686 | } | |
f8b2ed36 | 687 | // drawing bg image if: |
688 | // - it is defined and | |
689 | // - fill type is not Aspect_FM_NONE | |
690 | if ( myBgTexture.TexId != 0 && myBgTexture.Style != Aspect_FM_NONE ) | |
691 | { | |
692 | GLfloat texX_range = 1.F; // texture <s> coordinate | |
693 | GLfloat texY_range = 1.F; // texture <t> coordinate | |
694 | ||
e276548b | 695 | // Set up for stretching or tiling |
f8b2ed36 | 696 | GLfloat x_offset, y_offset; |
697 | if ( myBgTexture.Style == Aspect_FM_CENTERED ) | |
698 | { | |
699 | x_offset = (GLfloat)myBgTexture.Width / (GLfloat)aViewWidth; | |
700 | y_offset = (GLfloat)myBgTexture.Height / (GLfloat)aViewHeight; | |
701 | } | |
702 | else | |
703 | { | |
704 | x_offset = 1.F; | |
705 | y_offset = 1.F; | |
706 | if ( myBgTexture.Style == Aspect_FM_TILED ) | |
707 | { | |
708 | texX_range = (GLfloat)aViewWidth / (GLfloat)myBgTexture.Width; | |
709 | texY_range = (GLfloat)aViewHeight / (GLfloat)myBgTexture.Height; | |
710 | } | |
711 | } | |
712 | ||
1e743e91 | 713 | // OCCT issue 0023000: Improve the way the gradient and textured |
714 | // background is managed in 3d viewer (note 0020339) | |
715 | // Setting this coefficient to -1.F allows to tile textures relatively | |
716 | // to the top-left corner of the view (value 1.F corresponds to the | |
717 | // initial behaviour - tiling from the bottom-left corner) | |
718 | GLfloat aCoef = -1.F; | |
719 | ||
f8b2ed36 | 720 | glEnable( GL_TEXTURE_2D ); //push GL_ENABLE_BIT |
721 | glBindTexture( GL_TEXTURE_2D, myBgTexture.TexId ); //push GL_TEXTURE_BIT | |
722 | ||
723 | glDisable( GL_BLEND ); //push GL_ENABLE_BIT | |
724 | ||
725 | glColor3fv( AWorkspace->BackgroundColor().rgb ); | |
726 | glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); //push GL_TEXTURE_BIT | |
727 | ||
1e743e91 | 728 | // Note that texture is mapped using GL_REPEAT wrapping mode so integer part |
729 | // is simply ignored, and negative multiplier is here for convenience only | |
730 | // and does not result e.g. in texture mirroring | |
f8b2ed36 | 731 | glBegin( GL_QUADS ); |
1e743e91 | 732 | glTexCoord2f(0.F, 0.F); glVertex2f( -x_offset, -aCoef * y_offset ); |
733 | glTexCoord2f(texX_range, 0.F); glVertex2f( x_offset, -aCoef * y_offset ); | |
734 | glTexCoord2f(texX_range, aCoef * texY_range); glVertex2f( x_offset, aCoef * y_offset ); | |
735 | glTexCoord2f(0.F, aCoef * texY_range); glVertex2f( -x_offset, aCoef * y_offset ); | |
f8b2ed36 | 736 | glEnd(); |
737 | } | |
2166f0fa SK |
738 | |
739 | glPopMatrix(); | |
740 | glMatrixMode( GL_PROJECTION ); | |
741 | glPopMatrix(); | |
742 | glMatrixMode( GL_MODELVIEW ); | |
743 | ||
744 | glPopAttrib(); //GL_ENABLE_BIT | GL_TEXTURE_BIT | |
745 | ||
746 | if ( AWorkspace->UseZBuffer() ) | |
747 | glEnable( GL_DEPTH_TEST ); | |
748 | ||
749 | /* GL_DITHER on/off pour le trace */ | |
750 | if (AWorkspace->Dither()) | |
751 | glEnable (GL_DITHER); | |
752 | else | |
753 | glDisable (GL_DITHER); | |
754 | } | |
e276548b | 755 | } |
756 | ||
757 | /*----------------------------------------------------------------------*/ | |
758 | ||
759 | //call_func_redraw_all_structs_proc | |
760 | void OpenGl_View::Render (const Handle(OpenGl_PrinterContext)& thePrintContext, | |
761 | const Handle(OpenGl_Workspace) &AWorkspace, | |
762 | const Graphic3d_CView& ACView, | |
763 | const Aspect_CLayer2d& ACUnderLayer, | |
764 | const Aspect_CLayer2d& ACOverLayer) | |
765 | { | |
766 | // Store and disable current clipping planes | |
767 | const Handle(OpenGl_Context)& aContext = AWorkspace->GetGlContext(); | |
768 | const Standard_Integer aMaxClipPlanes = aContext->MaxClipPlanes(); | |
769 | const GLenum lastid = GL_CLIP_PLANE0 + aMaxClipPlanes; | |
770 | OPENGL_CLIP_PLANE *oldPlanes = new OPENGL_CLIP_PLANE[aMaxClipPlanes]; | |
771 | OPENGL_CLIP_PLANE *ptrPlane = oldPlanes; | |
772 | GLenum planeid = GL_CLIP_PLANE0; | |
773 | for ( ; planeid < lastid; planeid++, ptrPlane++ ) | |
774 | { | |
775 | glGetClipPlane( planeid, ptrPlane->Equation ); | |
776 | if ( ptrPlane->isEnabled ) | |
777 | { | |
778 | glDisable( planeid ); | |
779 | ptrPlane->isEnabled = GL_TRUE; | |
780 | } | |
781 | else | |
782 | { | |
783 | ptrPlane->isEnabled = GL_FALSE; | |
784 | } | |
785 | } | |
786 | ||
787 | // Set OCCT state uniform variables | |
392ac980 | 788 | const Handle(OpenGl_ShaderManager) aManager = aContext->ShaderManager(); |
789 | if (StateInfo (myCurrLightSourceState, aManager->LightSourceState().Index()) != myLastLightSourceState) | |
e276548b | 790 | { |
392ac980 | 791 | aManager->UpdateLightSourceStateTo (&myLights); |
792 | myLastLightSourceState = StateInfo (myCurrLightSourceState, aManager->LightSourceState().Index()); | |
793 | } | |
794 | if (StateInfo (myCurrViewMappingState, aManager->ProjectionState().Index()) != myLastViewMappingState) | |
795 | { | |
796 | aManager->UpdateProjectionStateTo (myMappingMatrix); | |
797 | myLastViewMappingState = StateInfo (myCurrViewMappingState, aManager->ProjectionState().Index()); | |
798 | } | |
799 | if (StateInfo (myCurrOrientationState, aManager->WorldViewState().Index()) != myLastOrientationState) | |
800 | { | |
801 | aManager->UpdateWorldViewStateTo (myOrientationMatrix); | |
802 | myLastOrientationState = StateInfo (myCurrOrientationState, aManager->WorldViewState().Index()); | |
803 | } | |
804 | if (aManager->ModelWorldState().Index() == 0) | |
805 | { | |
806 | Tmatrix3 aModelWorldState = { { 1.f, 0.f, 0.f, 0.f }, | |
807 | { 0.f, 1.f, 0.f, 0.f }, | |
808 | { 0.f, 0.f, 1.f, 0.f }, | |
809 | { 0.f, 0.f, 0.f, 1.f } }; | |
810 | ||
811 | aManager->UpdateModelWorldStateTo (aModelWorldState); | |
e276548b | 812 | } |
813 | ||
814 | ///////////////////////////////////////////////////////////////////////////// | |
815 | // Step 1: Prepare for redraw | |
816 | ||
817 | // Render background | |
818 | DrawBackground (AWorkspace); | |
2166f0fa SK |
819 | |
820 | // Switch off lighting by default | |
821 | glDisable(GL_LIGHTING); | |
822 | ||
823 | ///////////////////////////////////////////////////////////////////////////// | |
824 | // Step 2: Draw underlayer | |
30f0ad28 | 825 | RedrawLayer2d (thePrintContext, ACView, ACUnderLayer); |
2166f0fa SK |
826 | |
827 | ///////////////////////////////////////////////////////////////////////////// | |
828 | // Step 3: Redraw main plane | |
829 | ||
830 | // Setup face culling | |
831 | GLboolean isCullFace = GL_FALSE; | |
832 | if ( myBackfacing ) | |
833 | { | |
834 | isCullFace = glIsEnabled( GL_CULL_FACE ); | |
835 | if ( myBackfacing < 0 ) | |
836 | { | |
837 | glEnable( GL_CULL_FACE ); | |
838 | glCullFace( GL_BACK ); | |
839 | } | |
840 | else | |
841 | glDisable( GL_CULL_FACE ); | |
842 | } | |
843 | ||
844 | //TsmPushAttri(); /* save previous graphics context */ | |
845 | ||
846 | // if the view is scaled normal vectors are scaled to unit length for correct displaying of shaded objects | |
3c3131a0 | 847 | if(myExtra.scaleFactors[0] != 1.F || |
2166f0fa SK |
848 | myExtra.scaleFactors[1] != 1.F || |
849 | myExtra.scaleFactors[2] != 1.F) | |
850 | glEnable(GL_NORMALIZE); | |
3c3131a0 | 851 | else if(glIsEnabled(GL_NORMALIZE)) |
2166f0fa SK |
852 | glDisable(GL_NORMALIZE); |
853 | ||
854 | // Apply View Projection | |
855 | // This routine activates the Projection matrix for a view. | |
856 | ||
857 | glMatrixMode( GL_PROJECTION ); | |
858 | ||
a174a3c5 | 859 | #ifdef _WIN32 |
2166f0fa | 860 | // add printing scale/tiling transformation |
a174a3c5 | 861 | if (!thePrintContext.IsNull()) |
2166f0fa | 862 | { |
a174a3c5 | 863 | thePrintContext->LoadProjTransformation(); |
2166f0fa SK |
864 | } |
865 | else | |
866 | #endif | |
867 | glLoadIdentity(); | |
868 | ||
869 | glMultMatrixf( (const GLfloat *) myMappingMatrix ); | |
870 | ||
871 | // Add translation necessary for the environnement mapping | |
872 | if (mySurfaceDetail != Visual3d_TOD_NONE) | |
873 | { | |
874 | // OCC280: FitAll work incorrect for perspective view if the SurfaceDetail mode is V3d_TEX_ENVIRONMENT or V3d_TEX_ALL | |
875 | // const GLfloat dep = vptr->vrep.extra.map.fpd * 0.5F; | |
876 | const GLfloat dep = (myExtra.map.fpd + myExtra.map.bpd) * 0.5F; | |
877 | glTranslatef(-dep*myExtra.vpn[0],-dep*myExtra.vpn[1],-dep*myExtra.vpn[2]); | |
878 | } | |
879 | ||
880 | // Apply matrix | |
881 | AWorkspace->SetViewMatrix((const OpenGl_Matrix *)myOrientationMatrix); | |
882 | ||
883 | /* | |
884 | While drawing after a clipplane has been defined and enabled, each vertex | |
885 | is transformed to eye-coordinates, where it is dotted with the transformed | |
886 | clipping plane equation. Eye-coordinate vertexes whose dot product with | |
887 | the transformed clipping plane equation is positive or zero are in, and | |
888 | require no clipping. Those eye-coordinate vertexes whose dot product is | |
889 | negative are clipped. Because clipplane clipping is done in eye- | |
890 | coordinates, changes to the projection matrix have no effect on its | |
891 | operation. | |
892 | ||
893 | A point and a normal are converted to a plane equation in the following manner: | |
894 | ||
895 | point = [Px,Py,Pz] | |
896 | ||
897 | normal = |Nx| | |
898 | |Ny| | |
899 | |Nz| | |
900 | ||
901 | plane equation = |A| | |
902 | |B| | |
903 | |C| | |
904 | |D| | |
905 | A = Nx | |
906 | B = Ny | |
907 | C = Nz | |
908 | D = -[Px,Py,Pz] dot |Nx| | |
909 | |Ny| | |
910 | |Nz| | |
911 | ||
912 | */ | |
913 | ||
2166f0fa SK |
914 | // Apply Fog |
915 | if ( myFog.IsOn ) | |
916 | { | |
917 | const GLfloat ramp = myExtra.map.fpd - myExtra.map.bpd; | |
918 | const GLfloat fog_start = myFog.Front * ramp - myExtra.map.fpd; | |
919 | const GLfloat fog_end = myFog.Back * ramp - myExtra.map.fpd; | |
920 | ||
921 | glFogi(GL_FOG_MODE, GL_LINEAR); | |
922 | glFogf(GL_FOG_START, fog_start); | |
923 | glFogf(GL_FOG_END, fog_end); | |
924 | glFogfv(GL_FOG_COLOR, myFog.Color.rgb); | |
925 | glEnable(GL_FOG); | |
926 | } | |
927 | else | |
928 | glDisable(GL_FOG); | |
929 | ||
930 | // Apply Lights | |
931 | { | |
12381341 | 932 | // setup lights |
4fe9ad57 | 933 | Graphic3d_Vec4 anAmbientColor (THE_DEFAULT_AMBIENT[0], |
934 | THE_DEFAULT_AMBIENT[1], | |
935 | THE_DEFAULT_AMBIENT[2], | |
936 | THE_DEFAULT_AMBIENT[3]); | |
12381341 | 937 | GLenum aLightGlId = GL_LIGHT0; |
938 | for (OpenGl_ListOfLight::Iterator aLightIt (myLights); | |
939 | aLightIt.More(); aLightIt.Next()) | |
2166f0fa | 940 | { |
4fe9ad57 | 941 | bind_light (aLightIt.Value(), aLightGlId, anAmbientColor); |
12381341 | 942 | } |
4fe9ad57 | 943 | |
944 | // apply accumulated ambient color | |
945 | anAmbientColor.a() = 1.0f; | |
946 | glLightModelfv (GL_LIGHT_MODEL_AMBIENT, anAmbientColor.GetData()); | |
947 | ||
12381341 | 948 | if (aLightGlId != GL_LIGHT0) |
949 | { | |
950 | glEnable (GL_LIGHTING); | |
951 | } | |
952 | // switch off unused lights | |
953 | for (; aLightGlId <= GL_LIGHT7; ++aLightGlId) | |
954 | { | |
955 | glDisable (aLightGlId); | |
2166f0fa | 956 | } |
2166f0fa SK |
957 | } |
958 | ||
959 | // Apply InteriorShadingMethod | |
960 | glShadeModel( myIntShadingMethod == TEL_SM_FLAT ? GL_FLAT : GL_SMOOTH ); | |
961 | ||
962 | // Apply clipping planes | |
963 | { | |
b859a34d | 964 | if (myZClip.Back.IsOn || myZClip.Front.IsOn) |
965 | { | |
2166f0fa SK |
966 | const GLdouble ramp = myExtra.map.fpd - myExtra.map.bpd; |
967 | ||
b859a34d | 968 | Handle(Graphic3d_ClipPlane) aPlaneBack; |
969 | Handle(Graphic3d_ClipPlane) aPlaneFront; | |
970 | ||
971 | if (myZClip.Back.IsOn) | |
2166f0fa SK |
972 | { |
973 | const GLdouble back = ramp * myZClip.Back.Limit + myExtra.map.bpd; | |
b859a34d | 974 | const Graphic3d_ClipPlane::Equation aBackEquation (0.0, 0.0, 1.0, -back); |
975 | aPlaneBack = new Graphic3d_ClipPlane (aBackEquation); | |
2166f0fa SK |
976 | } |
977 | ||
b859a34d | 978 | if (myZClip.Front.IsOn) |
2166f0fa SK |
979 | { |
980 | const GLdouble front = ramp * myZClip.Front.Limit + myExtra.map.bpd; | |
b859a34d | 981 | const Graphic3d_ClipPlane::Equation aFrontEquation (0.0, 0.0, -1.0, front); |
982 | aPlaneFront = new Graphic3d_ClipPlane (aFrontEquation); | |
2166f0fa SK |
983 | } |
984 | ||
b859a34d | 985 | // do some "memory allocation"-wise optimization |
986 | if (!aPlaneBack.IsNull() || !aPlaneFront.IsNull()) | |
987 | { | |
51b10cd4 | 988 | Graphic3d_SequenceOfHClipPlane aSlicingPlanes; |
b859a34d | 989 | if (!aPlaneBack.IsNull()) |
990 | { | |
51b10cd4 | 991 | aSlicingPlanes.Append (aPlaneBack); |
b859a34d | 992 | } |
993 | ||
994 | if (!aPlaneFront.IsNull()) | |
995 | { | |
51b10cd4 | 996 | aSlicingPlanes.Append (aPlaneFront); |
b859a34d | 997 | } |
998 | ||
999 | // add planes at loaded view matrix state | |
1000 | aContext->ChangeClipping().AddView (aSlicingPlanes, AWorkspace); | |
1001 | } | |
2166f0fa SK |
1002 | } |
1003 | ||
1004 | // Apply user clipping planes | |
b859a34d | 1005 | if (!myClipPlanes.IsEmpty()) |
4269bd1b | 1006 | { |
51b10cd4 | 1007 | Graphic3d_SequenceOfHClipPlane aUserPlanes; |
1008 | Graphic3d_SequenceOfHClipPlane::Iterator aClippingIt (myClipPlanes); | |
b859a34d | 1009 | for (; aClippingIt.More(); aClippingIt.Next()) |
1010 | { | |
1011 | const Handle(Graphic3d_ClipPlane)& aClipPlane = aClippingIt.Value(); | |
1012 | if (aClipPlane->IsOn()) | |
1013 | { | |
51b10cd4 | 1014 | aUserPlanes.Append (aClipPlane); |
b859a34d | 1015 | } |
1016 | } | |
4269bd1b | 1017 | |
b859a34d | 1018 | if (!aUserPlanes.IsEmpty()) |
1019 | { | |
1020 | // add planes at actual matrix state. | |
1021 | aContext->ChangeClipping().AddWorld (aUserPlanes); | |
1022 | } | |
2166f0fa | 1023 | } |
30f0ad28 | 1024 | |
392ac980 | 1025 | if (!aManager->IsEmpty()) |
30f0ad28 | 1026 | { |
392ac980 | 1027 | aManager->UpdateClippingState(); |
30f0ad28 | 1028 | } |
2166f0fa SK |
1029 | } |
1030 | ||
1031 | // Apply AntiAliasing | |
1032 | { | |
1033 | if (myAntiAliasing) | |
1034 | AWorkspace->NamedStatus |= OPENGL_NS_ANTIALIASING; | |
1035 | else | |
1036 | AWorkspace->NamedStatus &= ~OPENGL_NS_ANTIALIASING; | |
1037 | } | |
1038 | ||
de75ed09 | 1039 | // Clear status bitfields |
1040 | AWorkspace->NamedStatus &= ~(OPENGL_NS_2NDPASSNEED | OPENGL_NS_2NDPASSDO); | |
2166f0fa | 1041 | |
de75ed09 | 1042 | // Added PCT for handling of textures |
1043 | switch (mySurfaceDetail) | |
2166f0fa | 1044 | { |
de75ed09 | 1045 | case Visual3d_TOD_NONE: |
1046 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1047 | AWorkspace->DisableTexture(); | |
1048 | // Render the view | |
1049 | RenderStructs(AWorkspace); | |
1050 | break; | |
1051 | ||
1052 | case Visual3d_TOD_ENVIRONMENT: | |
1053 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1054 | AWorkspace->EnableTexture (myTextureEnv); | |
1055 | // Render the view | |
1056 | RenderStructs(AWorkspace); | |
1057 | AWorkspace->DisableTexture(); | |
1058 | break; | |
1059 | ||
1060 | case Visual3d_TOD_ALL: | |
1061 | // First pass | |
1062 | AWorkspace->NamedStatus &= ~OPENGL_NS_FORBIDSETTEX; | |
1063 | // Render the view | |
1064 | RenderStructs(AWorkspace); | |
1065 | AWorkspace->DisableTexture(); | |
1066 | ||
1067 | // Second pass | |
1068 | if (AWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) | |
2166f0fa | 1069 | { |
de75ed09 | 1070 | AWorkspace->NamedStatus |= OPENGL_NS_2NDPASSDO; |
1071 | AWorkspace->EnableTexture (myTextureEnv); | |
2166f0fa | 1072 | |
de75ed09 | 1073 | /* sauvegarde de quelques parametres OpenGL */ |
1074 | GLint blend_dst, blend_src; | |
1075 | GLint zbuff_f; | |
1076 | GLboolean zbuff_w; | |
1077 | glGetBooleanv(GL_DEPTH_WRITEMASK, &zbuff_w); | |
1078 | glGetIntegerv(GL_DEPTH_FUNC, &zbuff_f); | |
1079 | glGetIntegerv(GL_BLEND_DST, &blend_dst); | |
1080 | glGetIntegerv(GL_BLEND_SRC, &blend_src); | |
1081 | GLboolean zbuff_state = glIsEnabled(GL_DEPTH_TEST); | |
1082 | GLboolean blend_state = glIsEnabled(GL_BLEND); | |
2166f0fa | 1083 | |
de75ed09 | 1084 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
1085 | glEnable(GL_BLEND); | |
2166f0fa | 1086 | |
de75ed09 | 1087 | glDepthFunc(GL_EQUAL); |
1088 | glDepthMask(GL_FALSE); | |
1089 | glEnable(GL_DEPTH_TEST); | |
2166f0fa | 1090 | |
2166f0fa | 1091 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; |
2166f0fa | 1092 | |
2166f0fa SK |
1093 | // Render the view |
1094 | RenderStructs(AWorkspace); | |
bf75be98 | 1095 | AWorkspace->DisableTexture(); |
2166f0fa | 1096 | |
de75ed09 | 1097 | /* restauration des parametres OpenGL */ |
1098 | glBlendFunc(blend_src, blend_dst); | |
1099 | if (!blend_state) glDisable(GL_BLEND); | |
2166f0fa | 1100 | |
de75ed09 | 1101 | glDepthFunc(zbuff_f); |
1102 | glDepthMask(zbuff_w); | |
1103 | if (!zbuff_state) glDisable(GL_DEPTH_FUNC); | |
1104 | } | |
1105 | break; | |
2166f0fa SK |
1106 | } |
1107 | ||
26395493 | 1108 | // Resetting GL parameters according to the default aspects |
1109 | // in order to synchronize GL state with the graphic driver state | |
1110 | // before drawing auxiliary stuff (trihedrons, overlayer) | |
1111 | // and invoking optional callbacks | |
1112 | AWorkspace->ResetAppliedAspect(); | |
2166f0fa | 1113 | |
b859a34d | 1114 | aContext->ChangeClipping().RemoveAll(); |
2166f0fa | 1115 | |
392ac980 | 1116 | if (!aManager->IsEmpty()) |
30f0ad28 | 1117 | { |
392ac980 | 1118 | aManager->ResetMaterialStates(); |
1119 | aManager->RevertClippingState(); | |
1120 | ||
1121 | // We need to disable (unbind) all shaders programs to ensure | |
1122 | // that all objects without specified aspect will be drawn | |
1123 | // correctly (such as background) | |
1124 | OpenGl_ShaderProgram::Unbind (aContext); | |
30f0ad28 | 1125 | } |
1126 | ||
a174a3c5 | 1127 | // display global trihedron |
1128 | if (myTrihedron != NULL) | |
1129 | { | |
1130 | myTrihedron->Render (AWorkspace); | |
1131 | } | |
1132 | if (myGraduatedTrihedron != NULL) | |
1133 | { | |
1134 | myGraduatedTrihedron->Render (AWorkspace); | |
1135 | } | |
2166f0fa | 1136 | |
2166f0fa SK |
1137 | // Restore face culling |
1138 | if ( myBackfacing ) | |
1139 | { | |
1140 | if ( isCullFace ) | |
1141 | { | |
1142 | glEnable ( GL_CULL_FACE ); | |
1143 | glCullFace ( GL_BACK ); | |
1144 | } | |
529afc1a | 1145 | else |
2166f0fa SK |
1146 | glDisable ( GL_CULL_FACE ); |
1147 | } | |
1148 | ||
1149 | ///////////////////////////////////////////////////////////////////////////// | |
1150 | // Step 6: Draw overlayer | |
529afc1a K |
1151 | const int aMode = 0; |
1152 | AWorkspace->DisplayCallback (ACView, (aMode | OCC_PRE_OVERLAY)); | |
2166f0fa | 1153 | |
30f0ad28 | 1154 | RedrawLayer2d (thePrintContext, ACView, ACOverLayer); |
2166f0fa | 1155 | |
529afc1a | 1156 | AWorkspace->DisplayCallback (ACView, aMode); |
2166f0fa SK |
1157 | |
1158 | // Restore clipping planes | |
1159 | for ( ptrPlane = oldPlanes, planeid = GL_CLIP_PLANE0; planeid < lastid; planeid++, ptrPlane++ ) | |
1160 | { | |
1161 | glClipPlane( planeid, ptrPlane->Equation ); | |
1162 | if ( ptrPlane->isEnabled ) | |
1163 | glEnable( planeid ); | |
529afc1a | 1164 | else |
2166f0fa SK |
1165 | glDisable( planeid ); |
1166 | } | |
1167 | delete[] oldPlanes; | |
1168 | } | |
1169 | ||
1170 | /*----------------------------------------------------------------------*/ | |
1171 | ||
1172 | //ExecuteViewDisplay | |
1173 | void OpenGl_View::RenderStructs (const Handle(OpenGl_Workspace) &AWorkspace) | |
1174 | { | |
59f45b7c | 1175 | if ( myZLayers.NbStructures() <= 0 ) |
1176 | return; | |
2166f0fa SK |
1177 | |
1178 | glPushAttrib ( GL_DEPTH_BUFFER_BIT ); | |
1179 | ||
2166f0fa SK |
1180 | //TsmPushAttri(); /* save previous graphics context */ |
1181 | ||
1182 | if ( (AWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) == 0 ) | |
1183 | { | |
1184 | const int antiAliasingMode = AWorkspace->GetDisplay()->AntiAliasingMode(); | |
1185 | ||
1186 | if ( !myAntiAliasing ) | |
1187 | { | |
1188 | glDisable(GL_POINT_SMOOTH); | |
1189 | glDisable(GL_LINE_SMOOTH); | |
1190 | if( antiAliasingMode & 2 ) glDisable(GL_POLYGON_SMOOTH); | |
1191 | glBlendFunc (GL_ONE, GL_ZERO); | |
1192 | glDisable (GL_BLEND); | |
1193 | } | |
1194 | else | |
1195 | { | |
1196 | glEnable(GL_POINT_SMOOTH); | |
1197 | glEnable(GL_LINE_SMOOTH); | |
1198 | if( antiAliasingMode & 2 ) glEnable(GL_POLYGON_SMOOTH); | |
3c3131a0 | 1199 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
2166f0fa SK |
1200 | glEnable (GL_BLEND); |
1201 | } | |
1202 | } | |
1203 | ||
59f45b7c | 1204 | myZLayers.Render (AWorkspace); |
2166f0fa SK |
1205 | |
1206 | //TsmPopAttri(); /* restore previous graphics context; before update lights */ | |
de75ed09 | 1207 | glPopAttrib(); |
2166f0fa SK |
1208 | } |
1209 | ||
1210 | /*----------------------------------------------------------------------*/ | |
1211 | ||
1212 | //call_togl_redraw_layer2d | |
a174a3c5 | 1213 | void OpenGl_View::RedrawLayer2d (const Handle(OpenGl_PrinterContext)& thePrintContext, |
a174a3c5 | 1214 | const Graphic3d_CView& ACView, |
1215 | const Aspect_CLayer2d& ACLayer) | |
2166f0fa SK |
1216 | { |
1217 | if (&ACLayer == NULL | |
1218 | || ACLayer.ptrLayer == NULL | |
1219 | || ACLayer.ptrLayer->listIndex == 0) return; | |
1220 | ||
529afc1a K |
1221 | GLsizei dispWidth = (GLsizei )ACLayer.viewport[0]; |
1222 | GLsizei dispHeight = (GLsizei )ACLayer.viewport[1]; | |
2166f0fa | 1223 | |
2166f0fa SK |
1224 | glMatrixMode( GL_MODELVIEW ); |
1225 | glPushMatrix (); | |
1226 | glLoadIdentity (); | |
1227 | ||
1228 | glMatrixMode (GL_PROJECTION); | |
1229 | glPushMatrix (); | |
1230 | glLoadIdentity (); | |
1231 | ||
1232 | if (!ACLayer.sizeDependent) | |
1233 | glViewport (0, 0, dispWidth, dispHeight); | |
1234 | ||
1235 | float left = ACLayer.ortho[0]; | |
1236 | float right = ACLayer.ortho[1]; | |
1237 | float bottom = ACLayer.ortho[2]; | |
1238 | float top = ACLayer.ortho[3]; | |
1239 | ||
1240 | int attach = ACLayer.attach; | |
1241 | ||
1242 | float ratio; | |
1243 | if (!ACLayer.sizeDependent) | |
1244 | ratio = (float) dispWidth/dispHeight; | |
1245 | else | |
1246 | ratio = ACView.DefWindow.dx/ACView.DefWindow.dy; | |
1247 | ||
1248 | float delta; | |
c9d4eb9d | 1249 | if (ratio >= 1.0) { |
2166f0fa SK |
1250 | delta = (float )((top - bottom)/2.0); |
1251 | switch (attach) { | |
1252 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
1253 | top = bottom + 2*delta/ratio; | |
1254 | break; | |
1255 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
1256 | top = bottom + 2*delta/ratio; | |
1257 | break; | |
1258 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
1259 | bottom = top - 2*delta/ratio; | |
1260 | break; | |
1261 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
1262 | bottom = top - 2*delta/ratio; | |
1263 | break; | |
1264 | } | |
1265 | } | |
c9d4eb9d | 1266 | else { |
2166f0fa SK |
1267 | delta = (float )((right - left)/2.0); |
1268 | switch (attach) { | |
1269 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
1270 | right = left + 2*delta*ratio; | |
1271 | break; | |
1272 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
1273 | left = right - 2*delta*ratio; | |
1274 | break; | |
1275 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
1276 | right = left + 2*delta*ratio; | |
1277 | break; | |
1278 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
1279 | left = right - 2*delta*ratio; | |
1280 | break; | |
1281 | } | |
1282 | } | |
1283 | ||
a174a3c5 | 1284 | #ifdef _WIN32 |
2166f0fa | 1285 | // Check printer context that exists only for print operation |
a174a3c5 | 1286 | if (!thePrintContext.IsNull()) |
2166f0fa SK |
1287 | { |
1288 | // additional transformation matrix could be applied to | |
1289 | // render only those parts of viewport that will be | |
1290 | // passed to a printer as a current "frame" to provide | |
1291 | // tiling; scaling of graphics by matrix helps render a | |
1292 | // part of a view (frame) in same viewport, but with higher | |
1293 | // resolution | |
a174a3c5 | 1294 | thePrintContext->LoadProjTransformation(); |
2166f0fa SK |
1295 | |
1296 | // printing operation also assumes other viewport dimension | |
1297 | // to comply with transformation matrix or graphics scaling | |
1298 | // factors for tiling for layer redraw | |
1299 | GLsizei anViewportX = 0; | |
1300 | GLsizei anViewportY = 0; | |
a174a3c5 | 1301 | thePrintContext->GetLayerViewport (anViewportX, anViewportY); |
2166f0fa SK |
1302 | if (anViewportX != 0 && anViewportY != 0) |
1303 | glViewport (0, 0, anViewportX, anViewportY); | |
1304 | } | |
3c3131a0 | 1305 | #endif |
2166f0fa SK |
1306 | |
1307 | glOrtho (left, right, bottom, top, -1.0, 1.0); | |
1308 | ||
2166f0fa SK |
1309 | glPushAttrib ( |
1310 | GL_LIGHTING_BIT | GL_LINE_BIT | GL_POLYGON_BIT | | |
1311 | GL_DEPTH_BUFFER_BIT | GL_CURRENT_BIT | GL_TEXTURE_BIT ); | |
c9d4eb9d | 1312 | |
2166f0fa | 1313 | glDisable (GL_DEPTH_TEST); |
c9d4eb9d | 1314 | glDisable (GL_TEXTURE_1D); |
1315 | glDisable (GL_TEXTURE_2D); | |
1316 | glDisable (GL_LIGHTING); | |
1317 | ||
1318 | // TODO: Obsolete code, the display list is always empty now, to be removed | |
2166f0fa SK |
1319 | glCallList (ACLayer.ptrLayer->listIndex); |
1320 | ||
1321 | //calling dynamic render of LayerItems | |
1322 | if ( ACLayer.ptrLayer->layerData ) | |
1323 | { | |
30f0ad28 | 1324 | InitLayerProp (ACLayer.ptrLayer->listIndex); |
2166f0fa | 1325 | ((Visual3d_Layer*)ACLayer.ptrLayer->layerData)->RenderLayerItems(); |
30f0ad28 | 1326 | InitLayerProp (0); |
2166f0fa SK |
1327 | } |
1328 | ||
1329 | glPopAttrib (); | |
1330 | ||
2166f0fa SK |
1331 | glMatrixMode (GL_PROJECTION); |
1332 | glPopMatrix (); | |
1333 | ||
1334 | glMatrixMode( GL_MODELVIEW ); | |
1335 | glPopMatrix (); | |
1336 | ||
2166f0fa SK |
1337 | if (!ACLayer.sizeDependent) |
1338 | glViewport (0, 0, (GLsizei) ACView.DefWindow.dx, (GLsizei) ACView.DefWindow.dy); | |
1339 | ||
1340 | glFlush (); | |
2166f0fa SK |
1341 | } |
1342 | ||
1343 | /*----------------------------------------------------------------------*/ | |
1344 | ||
1345 | //call_togl_create_bg_texture | |
3c3131a0 | 1346 | void OpenGl_View::CreateBackgroundTexture (const Standard_CString theFilePath, |
1347 | const Aspect_FillMethod theFillStyle) | |
2166f0fa | 1348 | { |
3c3131a0 | 1349 | if (myBgTexture.TexId != 0) |
2166f0fa | 1350 | { |
3c3131a0 | 1351 | // delete existing texture |
1352 | glDeleteTextures (1, (GLuint* )&(myBgTexture.TexId)); | |
2166f0fa SK |
1353 | myBgTexture.TexId = 0; |
1354 | } | |
1355 | ||
3c3131a0 | 1356 | // load image from file |
1357 | Image_AlienPixMap anImageLoaded; | |
1358 | if (!anImageLoaded.Load (theFilePath)) | |
1359 | { | |
1360 | return; | |
1361 | } | |
1362 | ||
1363 | Image_PixMap anImage; | |
1364 | if (anImageLoaded.RowExtraBytes() == 0 && | |
1365 | (anImageLoaded.Format() == Image_PixMap::ImgRGB | |
1366 | || anImageLoaded.Format() == Image_PixMap::ImgRGB32 | |
1367 | || anImageLoaded.Format() == Image_PixMap::ImgRGBA)) | |
2166f0fa | 1368 | { |
3c3131a0 | 1369 | anImage.InitWrapper (anImageLoaded.Format(), anImageLoaded.ChangeData(), |
1370 | anImageLoaded.SizeX(), anImageLoaded.SizeY(), anImageLoaded.SizeRowBytes()); | |
1371 | } | |
1372 | else | |
1373 | { | |
1374 | // convert image to RGB format | |
1375 | if (!anImage.InitTrash (Image_PixMap::ImgRGB, anImageLoaded.SizeX(), anImageLoaded.SizeY())) | |
1376 | { | |
1377 | return; | |
1378 | } | |
1379 | ||
1380 | anImage.SetTopDown (false); | |
1381 | Image_PixMapData<Image_ColorRGB>& aDataNew = anImage.EditData<Image_ColorRGB>(); | |
1382 | Quantity_Color aSrcColor; | |
1383 | for (Standard_Size aRow = 0; aRow < anImage.SizeY(); ++aRow) | |
1384 | { | |
1385 | for (Standard_Size aCol = 0; aCol < anImage.SizeX(); ++aCol) | |
2166f0fa | 1386 | { |
6a7d83c4 | 1387 | aSrcColor = anImageLoaded.PixelColor ((Standard_Integer )aCol, (Standard_Integer )aRow); |
3c3131a0 | 1388 | Image_ColorRGB& aColor = aDataNew.ChangeValue (aRow, aCol); |
8263fcd3 | 1389 | aColor.r() = Standard_Byte(255.0 * aSrcColor.Red()); |
1390 | aColor.g() = Standard_Byte(255.0 * aSrcColor.Green()); | |
1391 | aColor.b() = Standard_Byte(255.0 * aSrcColor.Blue()); | |
2166f0fa | 1392 | } |
3c3131a0 | 1393 | } |
1394 | anImageLoaded.Clear(); | |
1395 | } | |
2166f0fa | 1396 | |
3c3131a0 | 1397 | // create MipMapped texture |
1398 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); | |
2166f0fa | 1399 | |
3c3131a0 | 1400 | GLuint aTextureId = 0; |
1401 | glGenTextures (1, &aTextureId); | |
1402 | glBindTexture (GL_TEXTURE_2D, aTextureId); | |
2166f0fa | 1403 | |
3c3131a0 | 1404 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); |
1405 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); | |
1406 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | |
1407 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); | |
2166f0fa | 1408 | |
3c3131a0 | 1409 | const GLenum aDataFormat = (anImage.Format() == Image_PixMap::ImgRGB) ? GL_RGB : GL_RGBA; |
1410 | gluBuild2DMipmaps (GL_TEXTURE_2D, 3/*4*/, | |
1411 | GLint(anImage.SizeX()), GLint(anImage.SizeY()), | |
1412 | aDataFormat, GL_UNSIGNED_BYTE, anImage.Data()); | |
2166f0fa | 1413 | |
3c3131a0 | 1414 | myBgTexture.TexId = aTextureId; |
1415 | myBgTexture.Width = (Standard_Integer )anImage.SizeX(); | |
1416 | myBgTexture.Height = (Standard_Integer )anImage.SizeY(); | |
1417 | myBgTexture.Style = theFillStyle; | |
2166f0fa SK |
1418 | } |
1419 | ||
1420 | /*----------------------------------------------------------------------*/ | |
1421 | ||
1422 | //call_togl_set_bg_texture_style | |
1423 | void OpenGl_View::SetBackgroundTextureStyle (const Aspect_FillMethod AFillStyle) | |
1424 | { | |
f8b2ed36 | 1425 | myBgTexture.Style = AFillStyle; |
2166f0fa SK |
1426 | } |
1427 | ||
1428 | /*----------------------------------------------------------------------*/ | |
1429 | ||
1430 | //call_togl_gradient_background | |
1431 | void OpenGl_View::SetBackgroundGradient (const Quantity_Color& AColor1, | |
1432 | const Quantity_Color& AColor2, | |
1433 | const Aspect_GradientFillMethod AType) | |
1434 | { | |
1435 | Standard_Real R,G,B; | |
1436 | AColor1.Values( R, G, B, Quantity_TOC_RGB ); | |
1437 | myBgGradient.color1.rgb[0] = ( Tfloat )R; | |
1438 | myBgGradient.color1.rgb[1] = ( Tfloat )G; | |
1439 | myBgGradient.color1.rgb[2] = ( Tfloat )B; | |
1440 | myBgGradient.color1.rgb[3] = 0.F; | |
1441 | ||
1442 | AColor2.Values( R, G, B, Quantity_TOC_RGB ); | |
1443 | myBgGradient.color2.rgb[0] = ( Tfloat )R; | |
1444 | myBgGradient.color2.rgb[1] = ( Tfloat )G; | |
1445 | myBgGradient.color2.rgb[2] = ( Tfloat )B; | |
1446 | myBgGradient.color2.rgb[3] = 0.F; | |
1447 | ||
1448 | myBgGradient.type = AType; | |
1449 | } | |
1450 | ||
1451 | /*----------------------------------------------------------------------*/ | |
1452 | ||
1453 | //call_togl_set_gradient_type | |
1454 | void OpenGl_View::SetBackgroundGradientType (const Aspect_GradientFillMethod AType) | |
1455 | { | |
f8b2ed36 | 1456 | myBgGradient.type = AType; |
2166f0fa SK |
1457 | } |
1458 | ||
59f45b7c | 1459 | //======================================================================= |
1460 | //function : AddZLayer | |
3c3131a0 | 1461 | //purpose : |
59f45b7c | 1462 | //======================================================================= |
1463 | ||
1464 | void OpenGl_View::AddZLayer (const Standard_Integer theLayerId) | |
1465 | { | |
1466 | myZLayers.AddLayer (theLayerId); | |
1467 | } | |
1468 | ||
1469 | //======================================================================= | |
1470 | //function : RemoveZLayer | |
3c3131a0 | 1471 | //purpose : |
59f45b7c | 1472 | //======================================================================= |
1473 | ||
1474 | void OpenGl_View::RemoveZLayer (const Standard_Integer theLayerId) | |
1475 | { | |
1476 | myZLayers.RemoveLayer (theLayerId); | |
1477 | } | |
1478 | ||
1479 | //======================================================================= | |
1480 | //function : DisplayStructure | |
3c3131a0 | 1481 | //purpose : |
59f45b7c | 1482 | //======================================================================= |
1483 | ||
1484 | void OpenGl_View::DisplayStructure (const OpenGl_Structure *theStructure, | |
1485 | const Standard_Integer thePriority) | |
1486 | { | |
1487 | Standard_Integer aZLayer = theStructure->GetZLayer (); | |
1488 | myZLayers.AddStructure (theStructure, aZLayer, thePriority); | |
1489 | } | |
1490 | ||
1491 | //======================================================================= | |
1492 | //function : EraseStructure | |
3c3131a0 | 1493 | //purpose : |
59f45b7c | 1494 | //======================================================================= |
1495 | ||
1496 | void OpenGl_View::EraseStructure (const OpenGl_Structure *theStructure) | |
1497 | { | |
1498 | Standard_Integer aZLayer = theStructure->GetZLayer (); | |
1499 | myZLayers.RemoveStructure (theStructure, aZLayer); | |
1500 | } | |
1501 | ||
1502 | //======================================================================= | |
1503 | //function : ChangeZLayer | |
1504 | //purpose : | |
1505 | //======================================================================= | |
1506 | ||
1507 | void OpenGl_View::ChangeZLayer (const OpenGl_Structure *theStructure, | |
1508 | const Standard_Integer theNewLayerId) | |
1509 | { | |
1510 | Standard_Integer anOldLayer = theStructure->GetZLayer (); | |
1511 | myZLayers.ChangeLayer (theStructure, anOldLayer, theNewLayerId); | |
1512 | } |