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b311480e | 1 | // Created on: 2011-09-20 |
2 | // Created by: Sergey ZERCHANINOV | |
3 | // Copyright (c) 2011-2012 OPEN CASCADE SAS | |
4 | // | |
5 | // The content of this file is subject to the Open CASCADE Technology Public | |
6 | // License Version 6.5 (the "License"). You may not use the content of this file | |
7 | // except in compliance with the License. Please obtain a copy of the License | |
8 | // at http://www.opencascade.org and read it completely before using this file. | |
9 | // | |
10 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
11 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
12 | // | |
13 | // The Original Code and all software distributed under the License is | |
14 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
15 | // Initial Developer hereby disclaims all such warranties, including without | |
16 | // limitation, any warranties of merchantability, fitness for a particular | |
17 | // purpose or non-infringement. Please see the License for the specific terms | |
18 | // and conditions governing the rights and limitations under the License. | |
19 | ||
2166f0fa SK |
20 | #include <stdio.h> |
21 | #include <stdlib.h> | |
22 | ||
5f8b738e | 23 | #include <OpenGl_GlCore11.hxx> |
2166f0fa | 24 | #include <OpenGl_tgl_funcs.hxx> |
2166f0fa | 25 | |
3c3131a0 | 26 | #include <Image_AlienPixMap.hxx> |
2166f0fa SK |
27 | #include <Visual3d_Layer.hxx> |
28 | ||
2166f0fa SK |
29 | #include <OpenGl_AspectLine.hxx> |
30 | #include <OpenGl_Display.hxx> | |
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> | |
59f45b7c | 36 | #include <OpenGl_Structure.hxx> |
2166f0fa | 37 | |
2166f0fa SK |
38 | #define EPSI 0.0001 |
39 | ||
2166f0fa SK |
40 | static const GLfloat default_amb[4] = { 0.F, 0.F, 0.F, 1.F }; |
41 | static const GLfloat default_sptdir[3] = { 0.F, 0.F, -1.F }; | |
42 | static const GLfloat default_sptexpo = 0.F; | |
43 | static const GLfloat default_sptcutoff = 180.F; | |
44 | ||
45 | extern void InitLayerProp (const int AListId); //szvgl: defined in OpenGl_GraphicDriver_Layer.cxx | |
46 | ||
47 | /*----------------------------------------------------------------------*/ | |
48 | ||
49 | struct OPENGL_CLIP_PLANE | |
50 | { | |
51 | GLboolean isEnabled; | |
52 | GLdouble Equation[4]; | |
1c35b92f | 53 | DEFINE_STANDARD_ALLOC |
2166f0fa SK |
54 | }; |
55 | ||
56 | /*----------------------------------------------------------------------*/ | |
57 | /* | |
58 | * Fonctions privees | |
59 | */ | |
60 | ||
61 | /*-----------------------------------------------------------------*/ | |
62 | /* | |
63 | * Set des lumieres | |
64 | */ | |
65 | static void bind_light(const OpenGl_Light *lptr, int *gl_lid) | |
66 | { | |
67 | // Only 8 lights in OpenGL... | |
68 | if (*gl_lid > GL_LIGHT7) return; | |
69 | ||
70 | // the light is a headlight ? | |
1d47d8d0 | 71 | GLint cur_matrix = 0; |
2166f0fa SK |
72 | if (lptr->HeadLight) |
73 | { | |
74 | glGetIntegerv(GL_MATRIX_MODE, &cur_matrix); | |
75 | glMatrixMode(GL_MODELVIEW); | |
76 | glPushMatrix(); | |
77 | glLoadIdentity(); | |
78 | } | |
79 | ||
80 | GLfloat data_amb[4]; | |
81 | GLfloat data_diffu[4]; | |
82 | GLfloat data_pos[4]; | |
83 | GLfloat data_sptdir[3]; | |
84 | GLfloat data_sptexpo; | |
85 | GLfloat data_sptcutoff; | |
86 | GLfloat data_constantattenuation; | |
87 | GLfloat data_linearattenuation; | |
88 | ||
89 | /* set la light en fonction de son type */ | |
90 | switch (lptr->type) | |
91 | { | |
92 | case TLightAmbient: | |
93 | data_amb[0] = lptr->col.rgb[0]; | |
94 | data_amb[1] = lptr->col.rgb[1]; | |
95 | data_amb[2] = lptr->col.rgb[2]; | |
96 | data_amb[3] = 1.0; | |
97 | ||
98 | /*------------------------- Ambient ---------------------------*/ | |
99 | /* | |
100 | * The GL_AMBIENT parameter refers to RGBA intensity of the ambient | |
101 | * light. | |
102 | */ | |
3c3131a0 | 103 | glLightModelfv(GL_LIGHT_MODEL_AMBIENT, data_amb); |
2166f0fa SK |
104 | break; |
105 | ||
106 | ||
107 | case TLightDirectional: | |
108 | data_diffu[0] = lptr->col.rgb[0]; | |
109 | data_diffu[1] = lptr->col.rgb[1]; | |
110 | data_diffu[2] = lptr->col.rgb[2]; | |
111 | data_diffu[3] = 1.0; | |
112 | ||
113 | /*------------------------- Direction ---------------------------*/ | |
114 | /* From Open GL Programming Rev 1 Guide Chapt 6 : | |
115 | Lighting The Mathematics of Lighting ( p 168 ) | |
116 | ||
117 | Directional Light Source ( Infinite ) : | |
118 | if the last parameter of GL_POSITION , w , is zero, the | |
119 | corresponding light source is a Directional one. | |
120 | ||
121 | GL_SPOT_CUTOFF a 180 signifie que ce n'est pas un spot. | |
3c3131a0 | 122 | To create a realistic effect, set the GL_SPECULAR parameter |
2166f0fa SK |
123 | to the same value as the GL_DIFFUSE. |
124 | */ | |
125 | ||
126 | data_pos[0] = -lptr->dir[0]; | |
127 | data_pos[1] = -lptr->dir[1]; | |
128 | data_pos[2] = -lptr->dir[2]; | |
129 | data_pos[3] = 0.0; | |
130 | ||
131 | glLightfv(*gl_lid, GL_AMBIENT, default_amb); | |
132 | glLightfv(*gl_lid, GL_DIFFUSE, data_diffu); | |
133 | glLightfv(*gl_lid, GL_SPECULAR, data_diffu); | |
134 | ||
135 | glLightfv(*gl_lid, GL_POSITION, data_pos); | |
136 | glLightfv(*gl_lid, GL_SPOT_DIRECTION, default_sptdir); | |
137 | glLightf(*gl_lid, GL_SPOT_EXPONENT, default_sptexpo); | |
138 | glLightf(*gl_lid, GL_SPOT_CUTOFF, default_sptcutoff); | |
139 | break; | |
140 | ||
141 | ||
142 | case TLightPositional: | |
143 | data_diffu[0] = lptr->col.rgb[0]; | |
144 | data_diffu[1] = lptr->col.rgb[1]; | |
145 | data_diffu[2] = lptr->col.rgb[2]; | |
146 | data_diffu[3] = 1.0; | |
147 | ||
148 | /*------------------------- Position -----------------------------*/ | |
149 | /* From Open GL Programming Rev 1 Guide Chapt 6 : | |
150 | Lighting The Mathematics of Lighting ( p 168 ) | |
151 | Positional Light Source : | |
152 | if the last parameter of GL_POSITION , w , is nonzero, | |
153 | the corresponding light source is a Positional one. | |
154 | ||
155 | GL_SPOT_CUTOFF a 180 signifie que ce n'est pas un spot. | |
156 | ||
3c3131a0 | 157 | To create a realistic effect, set the GL_SPECULAR parameter |
2166f0fa SK |
158 | to the same value as the GL_DIFFUSE. |
159 | */ | |
160 | ||
161 | data_pos[0] = lptr->pos[0]; | |
162 | data_pos[1] = lptr->pos[1]; | |
163 | data_pos[2] = lptr->pos[2]; | |
164 | data_pos[3] = 1.0; | |
165 | ||
166 | data_constantattenuation = lptr->atten[0]; | |
167 | data_linearattenuation = lptr->atten[1]; | |
168 | ||
169 | glLightfv(*gl_lid, GL_AMBIENT, default_amb); | |
170 | glLightfv(*gl_lid, GL_DIFFUSE, data_diffu); | |
171 | glLightfv(*gl_lid, GL_SPECULAR, data_diffu); | |
172 | ||
173 | glLightfv(*gl_lid, GL_POSITION, data_pos); | |
174 | glLightfv(*gl_lid, GL_SPOT_DIRECTION, default_sptdir); | |
175 | glLightf(*gl_lid, GL_SPOT_EXPONENT, default_sptexpo); | |
176 | glLightf(*gl_lid, GL_SPOT_CUTOFF, default_sptcutoff); | |
177 | glLightf(*gl_lid, GL_CONSTANT_ATTENUATION, data_constantattenuation); | |
178 | glLightf(*gl_lid, GL_LINEAR_ATTENUATION, data_linearattenuation); | |
3c3131a0 | 179 | glLightf(*gl_lid, GL_QUADRATIC_ATTENUATION, 0.0); |
2166f0fa SK |
180 | break; |
181 | ||
182 | ||
183 | case TLightSpot: | |
184 | data_diffu[0] = lptr->col.rgb[0]; | |
185 | data_diffu[1] = lptr->col.rgb[1]; | |
186 | data_diffu[2] = lptr->col.rgb[2]; | |
187 | data_diffu[3] = 1.0; | |
188 | ||
189 | data_pos[0] = lptr->pos[0]; | |
190 | data_pos[1] = lptr->pos[1]; | |
191 | data_pos[2] = lptr->pos[2]; | |
192 | data_pos[3] = 1.0; | |
193 | ||
194 | data_sptdir[0] = lptr->dir[0]; | |
195 | data_sptdir[1] = lptr->dir[1]; | |
196 | data_sptdir[2] = lptr->dir[2]; | |
197 | ||
198 | data_sptexpo = ( float )lptr->shine * 128.0F; | |
199 | data_sptcutoff = ( float )(lptr->angle * 180.0F)/( float )M_PI; | |
200 | ||
201 | data_constantattenuation = lptr->atten[0]; | |
202 | data_linearattenuation = lptr->atten[1]; | |
203 | ||
204 | glLightfv(*gl_lid, GL_AMBIENT, default_amb); | |
205 | glLightfv(*gl_lid, GL_DIFFUSE, data_diffu); | |
3c3131a0 | 206 | glLightfv(*gl_lid, GL_SPECULAR, data_diffu); |
2166f0fa | 207 | |
3c3131a0 | 208 | glLightfv(*gl_lid, GL_POSITION, data_pos); |
2166f0fa SK |
209 | glLightfv(*gl_lid, GL_SPOT_DIRECTION, data_sptdir); |
210 | glLightf(*gl_lid, GL_SPOT_EXPONENT, data_sptexpo); | |
211 | glLightf(*gl_lid, GL_SPOT_CUTOFF, data_sptcutoff); | |
212 | glLightf(*gl_lid, GL_CONSTANT_ATTENUATION, data_constantattenuation); | |
213 | glLightf(*gl_lid, GL_LINEAR_ATTENUATION, data_linearattenuation); | |
3c3131a0 | 214 | glLightf(*gl_lid, GL_QUADRATIC_ATTENUATION, 0.0); |
2166f0fa SK |
215 | break; |
216 | } | |
217 | ||
3c3131a0 | 218 | if (lptr->type != TLightAmbient) |
219 | { | |
2166f0fa SK |
220 | glEnable(*gl_lid); |
221 | (*gl_lid)++; | |
222 | } | |
223 | ||
224 | /* si la light etait une headlight alors restaure la matrice precedente */ | |
225 | if (lptr->HeadLight) | |
226 | { | |
227 | glPopMatrix(); | |
228 | glMatrixMode(cur_matrix); | |
229 | } | |
230 | } | |
231 | ||
232 | /*----------------------------------------------------------------------*/ | |
233 | /* | |
234 | * Prototypes | |
235 | */ | |
236 | ||
237 | static void call_util_apply_trans2( float ix, float iy, float iz, matrix3 mat, | |
238 | float *ox, float *oy, float *oz ); | |
239 | static void call_util_mat_mul( matrix3 mat_a, matrix3 mat_b, matrix3 mat_c); | |
240 | ||
241 | /*----------------------------------------------------------------------*/ | |
242 | /* | |
243 | * Fonctions externes | |
244 | */ | |
245 | ||
246 | /* | |
247 | * Evaluates orientation matrix. | |
248 | */ | |
249 | /* OCC18942: obsolete in OCCT6.3, might be removed in further versions! */ | |
250 | void call_func_eval_ori_matrix3 (const point3* vrp, // view reference point | |
251 | const vec3* vpn, // view plane normal | |
252 | const vec3* vup, // view up vector | |
3c3131a0 | 253 | int* err_ind, |
2166f0fa SK |
254 | float mout[4][4]) // OUT view orientation matrix |
255 | { | |
256 | ||
257 | /* Translate to VRP then change the basis. | |
258 | * The old basis is: e1 = < 1, 0, 0>, e2 = < 0, 1, 0>, e3 = < 0, 0, 1>. | |
259 | * The new basis is: ("x" means cross product) | |
260 | * e3' = VPN / |VPN| | |
261 | * e1' = VUP x VPN / |VUP x VPN| | |
262 | * e2' = e3' x e1' | |
263 | * Therefore the transform from old to new is x' = TAx, where: | |
264 | * | |
265 | * | e1'x e2'x e3'x 0 | | 1 0 0 0 | | |
266 | * A = | e1'y e2'y e3'y 0 |, T = | 0 1 0 0 | | |
267 | * | e1'z e2'z e3'z 0 | | 0 0 1 0 | | |
268 | * | 0 0 0 1 | | -vrp.x -vrp.y -vrp.z 1 | | |
269 | * | |
270 | */ | |
271 | ||
272 | /* | |
273 | * These ei's are really ei primes. | |
274 | */ | |
275 | register float (*m)[4][4]; | |
276 | point3 e1, e2, e3, e4; | |
277 | double s, v; | |
278 | ||
279 | /* | |
280 | * e1' = VUP x VPN / |VUP x VPN|, but do the division later. | |
281 | */ | |
282 | e1.x = vup->delta_y * vpn->delta_z - vup->delta_z * vpn->delta_y; | |
283 | e1.y = vup->delta_z * vpn->delta_x - vup->delta_x * vpn->delta_z; | |
284 | e1.z = vup->delta_x * vpn->delta_y - vup->delta_y * vpn->delta_x; | |
285 | s = sqrt( e1.x * e1.x + e1.y * e1.y + e1.z * e1.z); | |
286 | e3.x = vpn->delta_x; | |
287 | e3.y = vpn->delta_y; | |
288 | e3.z = vpn->delta_z; | |
289 | v = sqrt( e3.x * e3.x + e3.y * e3.y + e3.z * e3.z); | |
290 | /* | |
291 | * Check for vup and vpn colinear (zero dot product). | |
292 | */ | |
293 | if ((s > -EPSI) && (s < EPSI)) | |
294 | *err_ind = 2; | |
295 | else | |
296 | /* | |
297 | * Check for a normal vector not null. | |
298 | */ | |
299 | if ((v > -EPSI) && (v < EPSI)) | |
300 | *err_ind = 3; | |
301 | else { | |
302 | /* | |
303 | * Normalize e1 | |
304 | */ | |
305 | e1.x /= ( float )s; | |
306 | e1.y /= ( float )s; | |
307 | e1.z /= ( float )s; | |
308 | /* | |
309 | * e3 = VPN / |VPN| | |
310 | */ | |
311 | e3.x /= ( float )v; | |
312 | e3.y /= ( float )v; | |
313 | e3.z /= ( float )v; | |
314 | /* | |
315 | * e2 = e3 x e1 | |
316 | */ | |
317 | e2.x = e3.y * e1.z - e3.z * e1.y; | |
318 | e2.y = e3.z * e1.x - e3.x * e1.z; | |
319 | e2.z = e3.x * e1.y - e3.y * e1.x; | |
320 | /* | |
321 | * Add the translation | |
322 | */ | |
323 | e4.x = -( e1.x * vrp->x + e1.y * vrp->y + e1.z * vrp->z); | |
324 | e4.y = -( e2.x * vrp->x + e2.y * vrp->y + e2.z * vrp->z); | |
325 | e4.z = -( e3.x * vrp->x + e3.y * vrp->y + e3.z * vrp->z); | |
326 | /* | |
327 | * Homogeneous entries | |
328 | * | |
329 | * | e1.x e2.x e3.x 0.0 | | 1 0 0 0 | | |
330 | * | e1.y e2.y e3.y 0.0 | * | 0 1 0 0 | | |
331 | * | e1.z e2.z e3.z 0.0 | | a b 1 c | | |
332 | * | e4.x e4.y e4.z 1.0 | | 0 0 0 1 | | |
333 | */ | |
334 | ||
335 | m = (float (*)[4][4])mout; | |
336 | ||
337 | (*m)[0][0] = e1.x; | |
338 | (*m)[0][1] = e2.x; | |
339 | (*m)[0][2] = e3.x; | |
340 | (*m)[0][3] = ( float )0.0; | |
341 | ||
342 | (*m)[1][0] = e1.y; | |
343 | (*m)[1][1] = e2.y; | |
344 | (*m)[1][2] = e3.y; | |
345 | (*m)[1][3] = ( float )0.0; | |
346 | ||
347 | (*m)[2][0] = e1.z; | |
348 | (*m)[2][1] = e2.z; | |
349 | (*m)[2][2] = e3.z; | |
350 | (*m)[2][3] = ( float )0.0; | |
351 | ||
352 | (*m)[3][0] = e4.x; | |
353 | (*m)[3][1] = e4.y; | |
354 | (*m)[3][2] = e4.z; | |
355 | (*m)[3][3] = ( float )1.0; | |
356 | ||
357 | *err_ind = 0; | |
358 | } | |
359 | } | |
360 | ||
361 | /*----------------------------------------------------------------------*/ | |
362 | /* | |
363 | * Evaluates mapping matrix. | |
364 | */ | |
365 | /* OCC18942: obsolete in OCCT6.3, might be removed in further versions! */ | |
366 | void call_func_eval_map_matrix3( | |
3c3131a0 | 367 | view_map3 *Map, |
368 | int *err_ind, | |
2166f0fa SK |
369 | matrix3 mat) |
370 | { | |
371 | int i, j; | |
372 | matrix3 Tpar, Spar; | |
373 | matrix3 Tper, Sper; | |
374 | matrix3 Shear; | |
375 | matrix3 Scale; | |
376 | matrix3 Tprp; | |
377 | matrix3 aux_mat1, aux_mat2, aux_mat3; | |
378 | point3 Prp; | |
379 | ||
380 | *err_ind = 0; | |
381 | for (i=0; i<4; i++) | |
382 | for (j=0; j<4; j++) | |
383 | Spar[i][j] = Sper[i][j] = aux_mat1[i][j] = aux_mat2[i][j] = | |
384 | aux_mat3[i][j] = Tper[i][j] = Tpar[i][j] = Tprp[i][j] = | |
385 | Shear[i][j] = Scale[i][j] = ( float )(i == j); | |
386 | ||
387 | Prp.x = Map->proj_ref_point.x; | |
388 | Prp.y = Map->proj_ref_point.y; | |
389 | Prp.z = Map->proj_ref_point.z; | |
390 | ||
391 | /* | |
392 | * Type Parallele | |
3c3131a0 | 393 | */ |
2166f0fa SK |
394 | if (Map->proj_type == TYPE_PARAL) |
395 | { | |
396 | float umid, vmid; | |
397 | point3 temp; | |
398 | ||
399 | #ifdef FMN | |
400 | float cx, cy, gx, gy, xsf, ysf, zsf; | |
401 | float fpd, bpd; | |
402 | float dopx, dopy, dopz; | |
403 | matrix3 tmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
404 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
405 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
406 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
407 | matrix3 smat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
408 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
409 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
410 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
411 | matrix3 shmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
412 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
413 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
414 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
415 | matrix3 tshmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
416 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
417 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
418 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
419 | ||
420 | /* centers */ | |
421 | cx = Map->win.x_min + Map->win.x_max, cx /= ( float )2.0; | |
422 | cy = Map->win.y_min + Map->win.y_max, cy /= ( float )2.0; | |
423 | ||
424 | gx = 2.0/ (Map->win.x_max - Map->win.x_min); | |
425 | gy = 2.0/ (Map->win.y_max - Map->win.y_min); | |
426 | ||
427 | tmat[0][3] = -cx; | |
428 | tmat[1][3] = -cy; | |
429 | tmat[2][3] = (Map->front_plane + Map->back_plane)/(Map->front_plane - Map->back_plane); | |
430 | ||
431 | smat[0][0] = gx; | |
432 | smat[1][1] = gy; | |
433 | smat[2][2] = -2./(Map->front_plane - Map->back_plane); | |
434 | ||
435 | /* scale factors */ | |
436 | dopx = cx - Prp.x; | |
437 | dopy = cy - Prp.y; | |
438 | dopz = - Prp.z; | |
439 | ||
440 | /* map matrix */ | |
441 | shmat[0][2] = -(dopx/dopz); | |
442 | shmat[1][2] = -(dopy/dopz); | |
443 | ||
444 | /* multiply to obtain mapping matrix */ | |
445 | call_util_mat_mul( tmat, shmat, tshmat ); | |
446 | call_util_mat_mul( smat, tshmat, mat ); | |
447 | ||
3c3131a0 | 448 | return; |
2166f0fa SK |
449 | #endif |
450 | ||
451 | /* CAL */ | |
452 | Map->proj_vp.z_min = ( float )0.0; | |
453 | Map->proj_vp.z_max = ( float )1.0; | |
454 | /* CAL */ | |
455 | ||
456 | /* Shear matrix calculation */ | |
457 | umid = ( float )(Map->win.x_min+Map->win.x_max)/( float )2.0; | |
458 | vmid = ( float )(Map->win.y_min+Map->win.y_max)/( float )2.0; | |
459 | if(Prp.z == Map->view_plane){ | |
460 | /* Projection reference point is on the view plane */ | |
461 | *err_ind = 1; | |
462 | return; | |
463 | } | |
464 | Shear[2][0] = ( float )(-1.0) * ((Prp.x-umid)/(Prp.z-Map->view_plane)); | |
465 | Shear[2][1] = ( float )(-1.0) * ((Prp.y-vmid)/(Prp.z-Map->view_plane)); | |
466 | ||
467 | /* | |
468 | * Calculate the lower left coordinate of the view plane | |
469 | * after the Shearing Transformation. | |
470 | */ | |
471 | call_util_apply_trans2(Map->win.x_min, Map->win.y_min, | |
472 | Map->view_plane, Shear, &(temp.x), &(temp.y), &(temp.z)); | |
473 | ||
474 | /* Translate the back plane to the origin */ | |
475 | Tpar[3][0] = ( float )(-1.0) * temp.x; | |
476 | Tpar[3][1] = ( float )(-1.0) * temp.y; | |
477 | Tpar[3][2] = ( float )(-1.0) * Map->back_plane; | |
478 | ||
479 | call_util_mat_mul(Shear, Tpar, aux_mat1); | |
480 | ||
481 | /* Calculation of Scaling transformation */ | |
482 | Spar[0][0] = ( float )1.0 / (Map->win.x_max - Map->win.x_min); | |
483 | Spar[1][1] = ( float )1.0 / (Map->win.y_max - Map->win.y_min); | |
484 | Spar[2][2] = ( float )1.0 / (Map->front_plane - Map->back_plane ); | |
485 | call_util_mat_mul (aux_mat1, Spar, aux_mat2); | |
486 | /* Atlast we transformed view volume to NPC */ | |
487 | ||
488 | /* Translate and scale the view plane to projection view port */ | |
489 | if(Map->proj_vp.x_min < 0.0 || Map->proj_vp.y_min < 0.0 || | |
490 | Map->proj_vp.z_min < 0.0 || Map->proj_vp.x_max > 1.0 || | |
491 | Map->proj_vp.y_max > 1.0 || Map->proj_vp.z_max > 1.0 || | |
492 | Map->proj_vp.x_min > Map->proj_vp.x_max || | |
493 | Map->proj_vp.y_min > Map->proj_vp.y_max || | |
494 | Map->proj_vp.z_min > Map->proj_vp.z_max){ | |
495 | *err_ind = 1; | |
496 | return; | |
497 | } | |
498 | for(i=0; i<4; i++) | |
499 | for(j=0; j<4; j++) | |
500 | aux_mat1[i][j] = (float)(i==j); | |
501 | aux_mat1[0][0] = Map->proj_vp.x_max-Map->proj_vp.x_min; | |
502 | aux_mat1[1][1] = Map->proj_vp.y_max-Map->proj_vp.y_min; | |
503 | aux_mat1[2][2] = Map->proj_vp.z_max-Map->proj_vp.z_min; | |
504 | aux_mat1[3][0] = Map->proj_vp.x_min; | |
505 | aux_mat1[3][1] = Map->proj_vp.y_min; | |
506 | aux_mat1[3][2] = Map->proj_vp.z_min; | |
507 | call_util_mat_mul (aux_mat2, aux_mat1, mat); | |
508 | ||
3c3131a0 | 509 | return; |
510 | } | |
2166f0fa SK |
511 | |
512 | /* | |
513 | * Type Perspective | |
3c3131a0 | 514 | */ |
2166f0fa SK |
515 | else if (Map->proj_type == TYPE_PERSPECT) |
516 | { | |
517 | float umid, vmid; | |
518 | float B, F, V; | |
519 | float Zvmin; | |
520 | ||
521 | /* CAL */ | |
522 | Map->proj_vp.z_min = ( float )0.0; | |
523 | Map->proj_vp.z_max = ( float )1.0; | |
524 | /* CAL */ | |
525 | ||
526 | B = Map->back_plane; | |
527 | F = Map->front_plane; | |
528 | V = Map->view_plane; | |
529 | ||
530 | if(Prp.z == Map->view_plane){ | |
531 | /* Centre of Projection is on the view plane */ | |
532 | *err_ind = 1; | |
533 | return; | |
534 | } | |
535 | if(Map->proj_vp.x_min < 0.0 || Map->proj_vp.y_min < 0.0 || | |
536 | Map->proj_vp.z_min < 0.0 || Map->proj_vp.x_max > 1.0 || | |
537 | Map->proj_vp.y_max > 1.0 || Map->proj_vp.z_max > 1.0 || | |
538 | Map->proj_vp.x_min > Map->proj_vp.x_max || | |
539 | Map->proj_vp.y_min > Map->proj_vp.y_max || | |
540 | Map->proj_vp.z_min > Map->proj_vp.z_max || | |
541 | F < B){ | |
542 | *err_ind = 1; | |
543 | return; | |
544 | } | |
545 | ||
546 | /* This is the transformation to move VRC to Center Of Projection */ | |
547 | Tprp[3][0] = ( float )(-1.0)*Prp.x; | |
548 | Tprp[3][1] = ( float )(-1.0)*Prp.y; | |
549 | Tprp[3][2] = ( float )(-1.0)*Prp.z; | |
550 | ||
551 | /* Calculation of Shear matrix */ | |
552 | umid = ( float )(Map->win.x_min+Map->win.x_max)/( float )2.0-Prp.x; | |
553 | vmid = ( float )(Map->win.y_min+Map->win.y_max)/( float )2.0-Prp.y; | |
554 | Shear[2][0] = ( float )(-1.0)*umid/(Map->view_plane-Prp.z); | |
555 | Shear[2][1] = ( float )(-1.0)*vmid/(Map->view_plane-Prp.z); | |
556 | call_util_mat_mul(Tprp, Shear, aux_mat3); | |
557 | ||
558 | /* Scale the view volume to canonical view volume | |
559 | * Centre of projection at origin. | |
560 | * 0 <= N <= -1, -0.5 <= U <= 0.5, -0.5 <= V <= 0.5 | |
561 | */ | |
562 | Scale[0][0] = (( float )(-1.0)*Prp.z+V)/ | |
563 | ((Map->win.x_max-Map->win.x_min)*(( float )(-1.0)*Prp.z+B)); | |
564 | Scale[1][1] = (( float )(-1.0)*Prp.z+V)/ | |
565 | ((Map->win.y_max-Map->win.y_min)*(( float )(-1.0)*Prp.z+B)); | |
566 | Scale[2][2] = ( float )(-1.0) / (( float )(-1.0)*Prp.z+B); | |
567 | ||
568 | call_util_mat_mul(aux_mat3, Scale, aux_mat1); | |
569 | ||
570 | /* | |
571 | * Transform the Perspective view volume into | |
572 | * Parallel view volume. | |
573 | * Lower left coordinate: (-0.5,-0.5, -1) | |
574 | * Upper right coordinate: (0.5, 0.5, 1.0) | |
575 | */ | |
576 | Zvmin = ( float )(-1.0*(-1.0*Prp.z+F)/(-1.0*Prp.z+B)); | |
577 | aux_mat2[2][2] = ( float )1.0/(( float )1.0+Zvmin); | |
578 | aux_mat2[2][3] = ( float )(-1.0); | |
579 | aux_mat2[3][2] = ( float )(-1.0)*Zvmin*aux_mat2[2][2]; | |
580 | aux_mat2[3][3] = ( float )0.0; | |
581 | call_util_mat_mul(aux_mat1, aux_mat2, Shear); | |
582 | ||
583 | for(i=0; i<4; i++) | |
584 | for(j=0; j<4; j++) | |
585 | aux_mat1[i][j] = aux_mat2[i][j] = (float)(i==j); | |
586 | ||
587 | /* Translate and scale the view plane to projection view port */ | |
588 | aux_mat2[0][0] = (Map->proj_vp.x_max-Map->proj_vp.x_min); | |
589 | aux_mat2[1][1] = (Map->proj_vp.y_max-Map->proj_vp.y_min); | |
590 | aux_mat2[2][2] = (Map->proj_vp.z_max-Map->proj_vp.z_min); | |
591 | aux_mat2[3][0] = aux_mat2[0][0]/( float )2.0+Map->proj_vp.x_min; | |
592 | aux_mat2[3][1] = aux_mat2[1][1]/( float )2.0+Map->proj_vp.y_min; | |
593 | aux_mat2[3][2] = aux_mat2[2][2]+Map->proj_vp.z_min; | |
594 | call_util_mat_mul (Shear, aux_mat2, mat); | |
595 | ||
596 | return; | |
597 | } | |
598 | else | |
599 | *err_ind = 1; | |
600 | } | |
601 | ||
602 | /*----------------------------------------------------------------------*/ | |
603 | ||
604 | static void | |
605 | call_util_apply_trans2( float ix, float iy, float iz, matrix3 mat, | |
606 | float *ox, float *oy, float *oz ) | |
607 | { | |
608 | float temp; | |
609 | *ox = ix*mat[0][0]+iy*mat[1][0]+iz*mat[2][0]+mat[3][0]; | |
610 | *oy = ix*mat[0][1]+iy*mat[1][1]+iz*mat[2][1]+mat[3][1]; | |
611 | *oz = ix*mat[0][2]+iy*mat[1][2]+iz*mat[2][2]+mat[3][2]; | |
612 | temp = ix * mat[0][3]+iy * mat[1][3]+iz * mat[2][3]+mat[3][3]; | |
613 | *ox /= temp; | |
614 | *oy /= temp; | |
615 | *oz /= temp; | |
616 | } | |
617 | ||
618 | /*----------------------------------------------------------------------*/ | |
619 | ||
620 | static void | |
621 | call_util_mat_mul( matrix3 mat_a, matrix3 mat_b, matrix3 mat_c) | |
622 | { | |
623 | int i, j, k; | |
624 | ||
625 | for (i=0; i<4; i++) | |
626 | for (j=0; j<4; j++) | |
627 | for (mat_c[i][j] = ( float )0.0,k=0; k<4; k++) | |
628 | mat_c[i][j] += mat_a[i][k] * mat_b[k][j]; | |
629 | } | |
630 | ||
631 | /*----------------------------------------------------------------------*/ | |
632 | ||
633 | //call_func_redraw_all_structs_proc | |
a174a3c5 | 634 | void OpenGl_View::Render (const Handle(OpenGl_PrinterContext)& thePrintContext, |
635 | const Handle(OpenGl_Workspace) &AWorkspace, | |
636 | const Graphic3d_CView& ACView, | |
637 | const Aspect_CLayer2d& ACUnderLayer, | |
638 | const Aspect_CLayer2d& ACOverLayer) | |
2166f0fa | 639 | { |
2166f0fa | 640 | // Store and disable current clipping planes |
4269bd1b | 641 | const Handle(OpenGl_Context)& aContext = AWorkspace->GetGlContext(); |
642 | const Standard_Integer aMaxClipPlanes = aContext->MaxClipPlanes(); | |
643 | const GLenum lastid = GL_CLIP_PLANE0 + aMaxClipPlanes; | |
644 | OPENGL_CLIP_PLANE *oldPlanes = new OPENGL_CLIP_PLANE[aMaxClipPlanes]; | |
2166f0fa SK |
645 | OPENGL_CLIP_PLANE *ptrPlane = oldPlanes; |
646 | GLenum planeid = GL_CLIP_PLANE0; | |
647 | for ( ; planeid < lastid; planeid++, ptrPlane++ ) | |
648 | { | |
649 | glGetClipPlane( planeid, ptrPlane->Equation ); | |
650 | if ( ptrPlane->isEnabled ) | |
651 | { | |
652 | glDisable( planeid ); | |
653 | ptrPlane->isEnabled = GL_TRUE; | |
654 | } | |
4269bd1b | 655 | else |
656 | { | |
2166f0fa | 657 | ptrPlane->isEnabled = GL_FALSE; |
4269bd1b | 658 | } |
2166f0fa SK |
659 | } |
660 | ||
661 | ///////////////////////////////////////////////////////////////////////////// | |
662 | // Step 1: Prepare for redraw | |
663 | ||
664 | // Render background | |
665 | if ( (AWorkspace->NamedStatus & OPENGL_NS_WHITEBACK) == 0 && | |
666 | ( myBgTexture.TexId != 0 || myBgGradient.type != Aspect_GFM_NONE ) ) | |
667 | { | |
668 | const Standard_Integer aViewWidth = AWorkspace->Width(); | |
669 | const Standard_Integer aViewHeight = AWorkspace->Height(); | |
670 | ||
671 | glPushAttrib( GL_ENABLE_BIT | GL_TEXTURE_BIT ); | |
672 | ||
673 | glMatrixMode( GL_PROJECTION ); | |
674 | glPushMatrix(); | |
675 | glLoadIdentity(); | |
676 | glMatrixMode( GL_MODELVIEW ); | |
677 | glPushMatrix(); | |
678 | glLoadIdentity(); | |
679 | ||
680 | if ( glIsEnabled( GL_DEPTH_TEST ) ) | |
681 | glDisable( GL_DEPTH_TEST ); //push GL_ENABLE_BIT | |
682 | ||
f8b2ed36 | 683 | // drawing bg gradient if: |
684 | // - gradient fill type is not Aspect_GFM_NONE and | |
685 | // - either background texture is no specified or it is drawn in Aspect_FM_CENTERED mode | |
686 | if ( ( myBgGradient.type != Aspect_GFM_NONE ) && | |
687 | ( myBgTexture.TexId == 0 || myBgTexture.Style == Aspect_FM_CENTERED || | |
688 | myBgTexture.Style == Aspect_FM_NONE ) ) | |
2166f0fa SK |
689 | { |
690 | Tfloat* corner1 = 0;/* -1,-1*/ | |
691 | Tfloat* corner2 = 0;/* 1,-1*/ | |
692 | Tfloat* corner3 = 0;/* 1, 1*/ | |
693 | Tfloat* corner4 = 0;/* -1, 1*/ | |
694 | Tfloat dcorner1[3]; | |
695 | Tfloat dcorner2[3]; | |
696 | ||
697 | switch( myBgGradient.type ) | |
698 | { | |
699 | case Aspect_GFM_HOR: | |
f8b2ed36 | 700 | corner1 = myBgGradient.color1.rgb; |
2166f0fa | 701 | corner2 = myBgGradient.color2.rgb; |
f8b2ed36 | 702 | corner3 = myBgGradient.color2.rgb; |
2166f0fa SK |
703 | corner4 = myBgGradient.color1.rgb; |
704 | break; | |
705 | case Aspect_GFM_VER: | |
706 | corner1 = myBgGradient.color2.rgb; | |
f8b2ed36 | 707 | corner2 = myBgGradient.color2.rgb; |
2166f0fa | 708 | corner3 = myBgGradient.color1.rgb; |
f8b2ed36 | 709 | corner4 = myBgGradient.color1.rgb; |
2166f0fa SK |
710 | break; |
711 | case Aspect_GFM_DIAG1: | |
712 | corner2 = myBgGradient.color2.rgb; | |
3c3131a0 | 713 | corner4 = myBgGradient.color1.rgb; |
2166f0fa SK |
714 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner2[0] + corner4[0]); |
715 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner2[1] + corner4[1]); | |
716 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner2[2] + corner4[2]); | |
717 | corner1 = dcorner1; | |
3c3131a0 | 718 | corner3 = dcorner2; |
2166f0fa SK |
719 | break; |
720 | case Aspect_GFM_DIAG2: | |
3c3131a0 | 721 | corner1 = myBgGradient.color2.rgb; |
722 | corner3 = myBgGradient.color1.rgb; | |
2166f0fa SK |
723 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner1[0] + corner3[0]); |
724 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner1[1] + corner3[1]); | |
725 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner1[2] + corner3[2]); | |
726 | corner2 = dcorner1; | |
3c3131a0 | 727 | corner4 = dcorner2; |
2166f0fa SK |
728 | break; |
729 | case Aspect_GFM_CORNER1: | |
f8b2ed36 | 730 | corner1 = myBgGradient.color2.rgb; |
2166f0fa SK |
731 | corner2 = myBgGradient.color2.rgb; |
732 | corner3 = myBgGradient.color2.rgb; | |
f8b2ed36 | 733 | corner4 = myBgGradient.color1.rgb; |
2166f0fa SK |
734 | break; |
735 | case Aspect_GFM_CORNER2: | |
736 | corner1 = myBgGradient.color2.rgb; | |
f8b2ed36 | 737 | corner2 = myBgGradient.color2.rgb; |
738 | corner3 = myBgGradient.color1.rgb; | |
2166f0fa SK |
739 | corner4 = myBgGradient.color2.rgb; |
740 | break; | |
741 | case Aspect_GFM_CORNER3: | |
742 | corner1 = myBgGradient.color2.rgb; | |
f8b2ed36 | 743 | corner2 = myBgGradient.color1.rgb; |
744 | corner3 = myBgGradient.color2.rgb; | |
2166f0fa SK |
745 | corner4 = myBgGradient.color2.rgb; |
746 | break; | |
747 | case Aspect_GFM_CORNER4: | |
f8b2ed36 | 748 | corner1 = myBgGradient.color1.rgb; |
2166f0fa SK |
749 | corner2 = myBgGradient.color2.rgb; |
750 | corner3 = myBgGradient.color2.rgb; | |
f8b2ed36 | 751 | corner4 = myBgGradient.color2.rgb; |
2166f0fa SK |
752 | break; |
753 | default: | |
754 | //printf("gradient background type not right\n"); | |
755 | break; | |
756 | } | |
757 | ||
758 | // Save GL parameters | |
759 | glDisable( GL_LIGHTING ); //push GL_ENABLE_BIT | |
760 | ||
761 | GLint curSM; | |
762 | glGetIntegerv( GL_SHADE_MODEL, &curSM ); | |
763 | if ( curSM != GL_SMOOTH ) | |
764 | glShadeModel( GL_SMOOTH ); //push GL_LIGHTING_BIT | |
765 | ||
766 | glBegin(GL_TRIANGLE_FAN); | |
f8b2ed36 | 767 | if( myBgGradient.type != Aspect_GFM_CORNER1 && myBgGradient.type != Aspect_GFM_CORNER3 ) |
2166f0fa SK |
768 | { |
769 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
770 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
771 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
772 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
3c3131a0 | 773 | } |
f8b2ed36 | 774 | else //if ( myBgGradient.type == Aspect_GFM_CORNER1 || myBgGradient.type == Aspect_GFM_CORNER3 ) |
2166f0fa SK |
775 | { |
776 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
777 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
778 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
779 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
780 | } | |
781 | glEnd(); | |
782 | ||
783 | // Restore GL parameters | |
784 | if ( curSM != GL_SMOOTH ) | |
785 | glShadeModel( curSM ); | |
786 | } | |
f8b2ed36 | 787 | // drawing bg image if: |
788 | // - it is defined and | |
789 | // - fill type is not Aspect_FM_NONE | |
790 | if ( myBgTexture.TexId != 0 && myBgTexture.Style != Aspect_FM_NONE ) | |
791 | { | |
792 | GLfloat texX_range = 1.F; // texture <s> coordinate | |
793 | GLfloat texY_range = 1.F; // texture <t> coordinate | |
794 | ||
795 | // Set up for stretching or tiling | |
796 | GLfloat x_offset, y_offset; | |
797 | if ( myBgTexture.Style == Aspect_FM_CENTERED ) | |
798 | { | |
799 | x_offset = (GLfloat)myBgTexture.Width / (GLfloat)aViewWidth; | |
800 | y_offset = (GLfloat)myBgTexture.Height / (GLfloat)aViewHeight; | |
801 | } | |
802 | else | |
803 | { | |
804 | x_offset = 1.F; | |
805 | y_offset = 1.F; | |
806 | if ( myBgTexture.Style == Aspect_FM_TILED ) | |
807 | { | |
808 | texX_range = (GLfloat)aViewWidth / (GLfloat)myBgTexture.Width; | |
809 | texY_range = (GLfloat)aViewHeight / (GLfloat)myBgTexture.Height; | |
810 | } | |
811 | } | |
812 | ||
1e743e91 | 813 | // OCCT issue 0023000: Improve the way the gradient and textured |
814 | // background is managed in 3d viewer (note 0020339) | |
815 | // Setting this coefficient to -1.F allows to tile textures relatively | |
816 | // to the top-left corner of the view (value 1.F corresponds to the | |
817 | // initial behaviour - tiling from the bottom-left corner) | |
818 | GLfloat aCoef = -1.F; | |
819 | ||
f8b2ed36 | 820 | glEnable( GL_TEXTURE_2D ); //push GL_ENABLE_BIT |
821 | glBindTexture( GL_TEXTURE_2D, myBgTexture.TexId ); //push GL_TEXTURE_BIT | |
822 | ||
823 | glDisable( GL_BLEND ); //push GL_ENABLE_BIT | |
824 | ||
825 | glColor3fv( AWorkspace->BackgroundColor().rgb ); | |
826 | glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); //push GL_TEXTURE_BIT | |
827 | ||
1e743e91 | 828 | // Note that texture is mapped using GL_REPEAT wrapping mode so integer part |
829 | // is simply ignored, and negative multiplier is here for convenience only | |
830 | // and does not result e.g. in texture mirroring | |
f8b2ed36 | 831 | glBegin( GL_QUADS ); |
1e743e91 | 832 | glTexCoord2f(0.F, 0.F); glVertex2f( -x_offset, -aCoef * y_offset ); |
833 | glTexCoord2f(texX_range, 0.F); glVertex2f( x_offset, -aCoef * y_offset ); | |
834 | glTexCoord2f(texX_range, aCoef * texY_range); glVertex2f( x_offset, aCoef * y_offset ); | |
835 | glTexCoord2f(0.F, aCoef * texY_range); glVertex2f( -x_offset, aCoef * y_offset ); | |
f8b2ed36 | 836 | glEnd(); |
837 | } | |
2166f0fa SK |
838 | |
839 | glPopMatrix(); | |
840 | glMatrixMode( GL_PROJECTION ); | |
841 | glPopMatrix(); | |
842 | glMatrixMode( GL_MODELVIEW ); | |
843 | ||
844 | glPopAttrib(); //GL_ENABLE_BIT | GL_TEXTURE_BIT | |
845 | ||
846 | if ( AWorkspace->UseZBuffer() ) | |
847 | glEnable( GL_DEPTH_TEST ); | |
848 | ||
849 | /* GL_DITHER on/off pour le trace */ | |
850 | if (AWorkspace->Dither()) | |
851 | glEnable (GL_DITHER); | |
852 | else | |
853 | glDisable (GL_DITHER); | |
854 | } | |
855 | ||
856 | // Switch off lighting by default | |
857 | glDisable(GL_LIGHTING); | |
858 | ||
859 | ///////////////////////////////////////////////////////////////////////////// | |
860 | // Step 2: Draw underlayer | |
a174a3c5 | 861 | RedrawLayer2d (thePrintContext, AWorkspace, ACView, ACUnderLayer); |
2166f0fa SK |
862 | |
863 | ///////////////////////////////////////////////////////////////////////////// | |
864 | // Step 3: Redraw main plane | |
865 | ||
866 | // Setup face culling | |
867 | GLboolean isCullFace = GL_FALSE; | |
868 | if ( myBackfacing ) | |
869 | { | |
870 | isCullFace = glIsEnabled( GL_CULL_FACE ); | |
871 | if ( myBackfacing < 0 ) | |
872 | { | |
873 | glEnable( GL_CULL_FACE ); | |
874 | glCullFace( GL_BACK ); | |
875 | } | |
876 | else | |
877 | glDisable( GL_CULL_FACE ); | |
878 | } | |
879 | ||
880 | //TsmPushAttri(); /* save previous graphics context */ | |
881 | ||
882 | // if the view is scaled normal vectors are scaled to unit length for correct displaying of shaded objects | |
3c3131a0 | 883 | if(myExtra.scaleFactors[0] != 1.F || |
2166f0fa SK |
884 | myExtra.scaleFactors[1] != 1.F || |
885 | myExtra.scaleFactors[2] != 1.F) | |
886 | glEnable(GL_NORMALIZE); | |
3c3131a0 | 887 | else if(glIsEnabled(GL_NORMALIZE)) |
2166f0fa SK |
888 | glDisable(GL_NORMALIZE); |
889 | ||
890 | // Apply View Projection | |
891 | // This routine activates the Projection matrix for a view. | |
892 | ||
893 | glMatrixMode( GL_PROJECTION ); | |
894 | ||
a174a3c5 | 895 | #ifdef _WIN32 |
2166f0fa | 896 | // add printing scale/tiling transformation |
a174a3c5 | 897 | if (!thePrintContext.IsNull()) |
2166f0fa | 898 | { |
a174a3c5 | 899 | thePrintContext->LoadProjTransformation(); |
2166f0fa SK |
900 | } |
901 | else | |
902 | #endif | |
903 | glLoadIdentity(); | |
904 | ||
905 | glMultMatrixf( (const GLfloat *) myMappingMatrix ); | |
906 | ||
907 | // Add translation necessary for the environnement mapping | |
908 | if (mySurfaceDetail != Visual3d_TOD_NONE) | |
909 | { | |
910 | // OCC280: FitAll work incorrect for perspective view if the SurfaceDetail mode is V3d_TEX_ENVIRONMENT or V3d_TEX_ALL | |
911 | // const GLfloat dep = vptr->vrep.extra.map.fpd * 0.5F; | |
912 | const GLfloat dep = (myExtra.map.fpd + myExtra.map.bpd) * 0.5F; | |
913 | glTranslatef(-dep*myExtra.vpn[0],-dep*myExtra.vpn[1],-dep*myExtra.vpn[2]); | |
914 | } | |
915 | ||
916 | // Apply matrix | |
917 | AWorkspace->SetViewMatrix((const OpenGl_Matrix *)myOrientationMatrix); | |
918 | ||
919 | /* | |
920 | While drawing after a clipplane has been defined and enabled, each vertex | |
921 | is transformed to eye-coordinates, where it is dotted with the transformed | |
922 | clipping plane equation. Eye-coordinate vertexes whose dot product with | |
923 | the transformed clipping plane equation is positive or zero are in, and | |
924 | require no clipping. Those eye-coordinate vertexes whose dot product is | |
925 | negative are clipped. Because clipplane clipping is done in eye- | |
926 | coordinates, changes to the projection matrix have no effect on its | |
927 | operation. | |
928 | ||
929 | A point and a normal are converted to a plane equation in the following manner: | |
930 | ||
931 | point = [Px,Py,Pz] | |
932 | ||
933 | normal = |Nx| | |
934 | |Ny| | |
935 | |Nz| | |
936 | ||
937 | plane equation = |A| | |
938 | |B| | |
939 | |C| | |
940 | |D| | |
941 | A = Nx | |
942 | B = Ny | |
943 | C = Nz | |
944 | D = -[Px,Py,Pz] dot |Nx| | |
945 | |Ny| | |
946 | |Nz| | |
947 | ||
948 | */ | |
949 | ||
2166f0fa SK |
950 | // Apply Fog |
951 | if ( myFog.IsOn ) | |
952 | { | |
953 | const GLfloat ramp = myExtra.map.fpd - myExtra.map.bpd; | |
954 | const GLfloat fog_start = myFog.Front * ramp - myExtra.map.fpd; | |
955 | const GLfloat fog_end = myFog.Back * ramp - myExtra.map.fpd; | |
956 | ||
957 | glFogi(GL_FOG_MODE, GL_LINEAR); | |
958 | glFogf(GL_FOG_START, fog_start); | |
959 | glFogf(GL_FOG_END, fog_end); | |
960 | glFogfv(GL_FOG_COLOR, myFog.Color.rgb); | |
961 | glEnable(GL_FOG); | |
962 | } | |
963 | else | |
964 | glDisable(GL_FOG); | |
965 | ||
966 | // Apply Lights | |
967 | { | |
968 | int i; | |
969 | ||
970 | // Switch off all lights | |
971 | for (i = GL_LIGHT0; i <= GL_LIGHT7; i++) | |
972 | glDisable(i); | |
973 | glLightModelfv(GL_LIGHT_MODEL_AMBIENT, default_amb); | |
974 | ||
975 | /* set les lights */ | |
976 | int gl_lid = GL_LIGHT0; | |
977 | OpenGl_ListOfLight::Iterator itl(myLights); | |
978 | for (; itl.More(); itl.Next()) | |
979 | { | |
980 | const OpenGl_Light &alight = itl.Value(); | |
981 | bind_light(&alight, &gl_lid); | |
982 | } | |
983 | ||
984 | if (gl_lid != GL_LIGHT0) glEnable(GL_LIGHTING); | |
985 | } | |
986 | ||
987 | // Apply InteriorShadingMethod | |
988 | glShadeModel( myIntShadingMethod == TEL_SM_FLAT ? GL_FLAT : GL_SMOOTH ); | |
989 | ||
990 | // Apply clipping planes | |
991 | { | |
b859a34d | 992 | const Handle(OpenGl_Context)& aContext = AWorkspace->GetGlContext(); |
2166f0fa | 993 | |
b859a34d | 994 | if (myZClip.Back.IsOn || myZClip.Front.IsOn) |
995 | { | |
2166f0fa SK |
996 | const GLdouble ramp = myExtra.map.fpd - myExtra.map.bpd; |
997 | ||
b859a34d | 998 | Handle(Graphic3d_ClipPlane) aPlaneBack; |
999 | Handle(Graphic3d_ClipPlane) aPlaneFront; | |
1000 | ||
1001 | if (myZClip.Back.IsOn) | |
2166f0fa SK |
1002 | { |
1003 | const GLdouble back = ramp * myZClip.Back.Limit + myExtra.map.bpd; | |
b859a34d | 1004 | const Graphic3d_ClipPlane::Equation aBackEquation (0.0, 0.0, 1.0, -back); |
1005 | aPlaneBack = new Graphic3d_ClipPlane (aBackEquation); | |
2166f0fa SK |
1006 | } |
1007 | ||
b859a34d | 1008 | if (myZClip.Front.IsOn) |
2166f0fa SK |
1009 | { |
1010 | const GLdouble front = ramp * myZClip.Front.Limit + myExtra.map.bpd; | |
b859a34d | 1011 | const Graphic3d_ClipPlane::Equation aFrontEquation (0.0, 0.0, -1.0, front); |
1012 | aPlaneFront = new Graphic3d_ClipPlane (aFrontEquation); | |
2166f0fa SK |
1013 | } |
1014 | ||
b859a34d | 1015 | // do some "memory allocation"-wise optimization |
1016 | if (!aPlaneBack.IsNull() || !aPlaneFront.IsNull()) | |
1017 | { | |
1018 | Graphic3d_SetOfHClipPlane aSlicingPlanes; | |
1019 | if (!aPlaneBack.IsNull()) | |
1020 | { | |
1021 | aSlicingPlanes.Add (aPlaneBack); | |
1022 | } | |
1023 | ||
1024 | if (!aPlaneFront.IsNull()) | |
1025 | { | |
1026 | aSlicingPlanes.Add (aPlaneFront); | |
1027 | } | |
1028 | ||
1029 | // add planes at loaded view matrix state | |
1030 | aContext->ChangeClipping().AddView (aSlicingPlanes, AWorkspace); | |
1031 | } | |
2166f0fa SK |
1032 | } |
1033 | ||
1034 | // Apply user clipping planes | |
b859a34d | 1035 | if (!myClipPlanes.IsEmpty()) |
4269bd1b | 1036 | { |
b859a34d | 1037 | Graphic3d_SetOfHClipPlane aUserPlanes; |
1038 | Graphic3d_SetOfHClipPlane::Iterator aClippingIt (myClipPlanes); | |
1039 | for (; aClippingIt.More(); aClippingIt.Next()) | |
1040 | { | |
1041 | const Handle(Graphic3d_ClipPlane)& aClipPlane = aClippingIt.Value(); | |
1042 | if (aClipPlane->IsOn()) | |
1043 | { | |
1044 | aUserPlanes.Add (aClipPlane); | |
1045 | } | |
1046 | } | |
4269bd1b | 1047 | |
b859a34d | 1048 | if (!aUserPlanes.IsEmpty()) |
1049 | { | |
1050 | // add planes at actual matrix state. | |
1051 | aContext->ChangeClipping().AddWorld (aUserPlanes); | |
1052 | } | |
2166f0fa SK |
1053 | } |
1054 | } | |
1055 | ||
1056 | // Apply AntiAliasing | |
1057 | { | |
1058 | if (myAntiAliasing) | |
1059 | AWorkspace->NamedStatus |= OPENGL_NS_ANTIALIASING; | |
1060 | else | |
1061 | AWorkspace->NamedStatus &= ~OPENGL_NS_ANTIALIASING; | |
1062 | } | |
1063 | ||
de75ed09 | 1064 | // Clear status bitfields |
1065 | AWorkspace->NamedStatus &= ~(OPENGL_NS_2NDPASSNEED | OPENGL_NS_2NDPASSDO); | |
2166f0fa | 1066 | |
de75ed09 | 1067 | // Added PCT for handling of textures |
1068 | switch (mySurfaceDetail) | |
2166f0fa | 1069 | { |
de75ed09 | 1070 | case Visual3d_TOD_NONE: |
1071 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1072 | AWorkspace->DisableTexture(); | |
1073 | // Render the view | |
1074 | RenderStructs(AWorkspace); | |
1075 | break; | |
1076 | ||
1077 | case Visual3d_TOD_ENVIRONMENT: | |
1078 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1079 | AWorkspace->EnableTexture (myTextureEnv); | |
1080 | // Render the view | |
1081 | RenderStructs(AWorkspace); | |
1082 | AWorkspace->DisableTexture(); | |
1083 | break; | |
1084 | ||
1085 | case Visual3d_TOD_ALL: | |
1086 | // First pass | |
1087 | AWorkspace->NamedStatus &= ~OPENGL_NS_FORBIDSETTEX; | |
1088 | // Render the view | |
1089 | RenderStructs(AWorkspace); | |
1090 | AWorkspace->DisableTexture(); | |
1091 | ||
1092 | // Second pass | |
1093 | if (AWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) | |
2166f0fa | 1094 | { |
de75ed09 | 1095 | AWorkspace->NamedStatus |= OPENGL_NS_2NDPASSDO; |
1096 | AWorkspace->EnableTexture (myTextureEnv); | |
2166f0fa | 1097 | |
de75ed09 | 1098 | /* sauvegarde de quelques parametres OpenGL */ |
1099 | GLint blend_dst, blend_src; | |
1100 | GLint zbuff_f; | |
1101 | GLboolean zbuff_w; | |
1102 | glGetBooleanv(GL_DEPTH_WRITEMASK, &zbuff_w); | |
1103 | glGetIntegerv(GL_DEPTH_FUNC, &zbuff_f); | |
1104 | glGetIntegerv(GL_BLEND_DST, &blend_dst); | |
1105 | glGetIntegerv(GL_BLEND_SRC, &blend_src); | |
1106 | GLboolean zbuff_state = glIsEnabled(GL_DEPTH_TEST); | |
1107 | GLboolean blend_state = glIsEnabled(GL_BLEND); | |
2166f0fa | 1108 | |
de75ed09 | 1109 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
1110 | glEnable(GL_BLEND); | |
2166f0fa | 1111 | |
de75ed09 | 1112 | glDepthFunc(GL_EQUAL); |
1113 | glDepthMask(GL_FALSE); | |
1114 | glEnable(GL_DEPTH_TEST); | |
2166f0fa | 1115 | |
2166f0fa | 1116 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; |
2166f0fa | 1117 | |
2166f0fa SK |
1118 | // Render the view |
1119 | RenderStructs(AWorkspace); | |
bf75be98 | 1120 | AWorkspace->DisableTexture(); |
2166f0fa | 1121 | |
de75ed09 | 1122 | /* restauration des parametres OpenGL */ |
1123 | glBlendFunc(blend_src, blend_dst); | |
1124 | if (!blend_state) glDisable(GL_BLEND); | |
2166f0fa | 1125 | |
de75ed09 | 1126 | glDepthFunc(zbuff_f); |
1127 | glDepthMask(zbuff_w); | |
1128 | if (!zbuff_state) glDisable(GL_DEPTH_FUNC); | |
1129 | } | |
1130 | break; | |
2166f0fa SK |
1131 | } |
1132 | ||
26395493 | 1133 | // Resetting GL parameters according to the default aspects |
1134 | // in order to synchronize GL state with the graphic driver state | |
1135 | // before drawing auxiliary stuff (trihedrons, overlayer) | |
1136 | // and invoking optional callbacks | |
1137 | AWorkspace->ResetAppliedAspect(); | |
2166f0fa | 1138 | |
b859a34d | 1139 | aContext->ChangeClipping().RemoveAll(); |
2166f0fa | 1140 | |
a174a3c5 | 1141 | // display global trihedron |
1142 | if (myTrihedron != NULL) | |
1143 | { | |
1144 | myTrihedron->Render (AWorkspace); | |
1145 | } | |
1146 | if (myGraduatedTrihedron != NULL) | |
1147 | { | |
1148 | myGraduatedTrihedron->Render (AWorkspace); | |
1149 | } | |
2166f0fa | 1150 | |
2166f0fa SK |
1151 | // Restore face culling |
1152 | if ( myBackfacing ) | |
1153 | { | |
1154 | if ( isCullFace ) | |
1155 | { | |
1156 | glEnable ( GL_CULL_FACE ); | |
1157 | glCullFace ( GL_BACK ); | |
1158 | } | |
529afc1a | 1159 | else |
2166f0fa SK |
1160 | glDisable ( GL_CULL_FACE ); |
1161 | } | |
1162 | ||
1163 | ///////////////////////////////////////////////////////////////////////////// | |
1164 | // Step 6: Draw overlayer | |
529afc1a K |
1165 | const int aMode = 0; |
1166 | AWorkspace->DisplayCallback (ACView, (aMode | OCC_PRE_OVERLAY)); | |
2166f0fa | 1167 | |
a174a3c5 | 1168 | RedrawLayer2d (thePrintContext, AWorkspace, ACView, ACOverLayer); |
2166f0fa | 1169 | |
529afc1a | 1170 | AWorkspace->DisplayCallback (ACView, aMode); |
2166f0fa SK |
1171 | |
1172 | // Restore clipping planes | |
1173 | for ( ptrPlane = oldPlanes, planeid = GL_CLIP_PLANE0; planeid < lastid; planeid++, ptrPlane++ ) | |
1174 | { | |
1175 | glClipPlane( planeid, ptrPlane->Equation ); | |
1176 | if ( ptrPlane->isEnabled ) | |
1177 | glEnable( planeid ); | |
529afc1a | 1178 | else |
2166f0fa SK |
1179 | glDisable( planeid ); |
1180 | } | |
1181 | delete[] oldPlanes; | |
1182 | } | |
1183 | ||
1184 | /*----------------------------------------------------------------------*/ | |
1185 | ||
1186 | //ExecuteViewDisplay | |
1187 | void OpenGl_View::RenderStructs (const Handle(OpenGl_Workspace) &AWorkspace) | |
1188 | { | |
59f45b7c | 1189 | if ( myZLayers.NbStructures() <= 0 ) |
1190 | return; | |
2166f0fa SK |
1191 | |
1192 | glPushAttrib ( GL_DEPTH_BUFFER_BIT ); | |
1193 | ||
2166f0fa SK |
1194 | //TsmPushAttri(); /* save previous graphics context */ |
1195 | ||
1196 | if ( (AWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) == 0 ) | |
1197 | { | |
1198 | const int antiAliasingMode = AWorkspace->GetDisplay()->AntiAliasingMode(); | |
1199 | ||
1200 | if ( !myAntiAliasing ) | |
1201 | { | |
1202 | glDisable(GL_POINT_SMOOTH); | |
1203 | glDisable(GL_LINE_SMOOTH); | |
1204 | if( antiAliasingMode & 2 ) glDisable(GL_POLYGON_SMOOTH); | |
1205 | glBlendFunc (GL_ONE, GL_ZERO); | |
1206 | glDisable (GL_BLEND); | |
1207 | } | |
1208 | else | |
1209 | { | |
1210 | glEnable(GL_POINT_SMOOTH); | |
1211 | glEnable(GL_LINE_SMOOTH); | |
1212 | if( antiAliasingMode & 2 ) glEnable(GL_POLYGON_SMOOTH); | |
3c3131a0 | 1213 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
2166f0fa SK |
1214 | glEnable (GL_BLEND); |
1215 | } | |
1216 | } | |
1217 | ||
59f45b7c | 1218 | myZLayers.Render (AWorkspace); |
2166f0fa SK |
1219 | |
1220 | //TsmPopAttri(); /* restore previous graphics context; before update lights */ | |
de75ed09 | 1221 | glPopAttrib(); |
2166f0fa SK |
1222 | } |
1223 | ||
1224 | /*----------------------------------------------------------------------*/ | |
1225 | ||
1226 | //call_togl_redraw_layer2d | |
a174a3c5 | 1227 | void OpenGl_View::RedrawLayer2d (const Handle(OpenGl_PrinterContext)& thePrintContext, |
35e08fe8 | 1228 | const Handle(OpenGl_Workspace)& /*AWorkspace*/, |
a174a3c5 | 1229 | const Graphic3d_CView& ACView, |
1230 | const Aspect_CLayer2d& ACLayer) | |
2166f0fa SK |
1231 | { |
1232 | if (&ACLayer == NULL | |
1233 | || ACLayer.ptrLayer == NULL | |
1234 | || ACLayer.ptrLayer->listIndex == 0) return; | |
1235 | ||
529afc1a K |
1236 | GLsizei dispWidth = (GLsizei )ACLayer.viewport[0]; |
1237 | GLsizei dispHeight = (GLsizei )ACLayer.viewport[1]; | |
2166f0fa | 1238 | |
2166f0fa SK |
1239 | glMatrixMode( GL_MODELVIEW ); |
1240 | glPushMatrix (); | |
1241 | glLoadIdentity (); | |
1242 | ||
1243 | glMatrixMode (GL_PROJECTION); | |
1244 | glPushMatrix (); | |
1245 | glLoadIdentity (); | |
1246 | ||
1247 | if (!ACLayer.sizeDependent) | |
1248 | glViewport (0, 0, dispWidth, dispHeight); | |
1249 | ||
1250 | float left = ACLayer.ortho[0]; | |
1251 | float right = ACLayer.ortho[1]; | |
1252 | float bottom = ACLayer.ortho[2]; | |
1253 | float top = ACLayer.ortho[3]; | |
1254 | ||
1255 | int attach = ACLayer.attach; | |
1256 | ||
1257 | float ratio; | |
1258 | if (!ACLayer.sizeDependent) | |
1259 | ratio = (float) dispWidth/dispHeight; | |
1260 | else | |
1261 | ratio = ACView.DefWindow.dx/ACView.DefWindow.dy; | |
1262 | ||
1263 | float delta; | |
c9d4eb9d | 1264 | if (ratio >= 1.0) { |
2166f0fa SK |
1265 | delta = (float )((top - bottom)/2.0); |
1266 | switch (attach) { | |
1267 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
1268 | top = bottom + 2*delta/ratio; | |
1269 | break; | |
1270 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
1271 | top = bottom + 2*delta/ratio; | |
1272 | break; | |
1273 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
1274 | bottom = top - 2*delta/ratio; | |
1275 | break; | |
1276 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
1277 | bottom = top - 2*delta/ratio; | |
1278 | break; | |
1279 | } | |
1280 | } | |
c9d4eb9d | 1281 | else { |
2166f0fa SK |
1282 | delta = (float )((right - left)/2.0); |
1283 | switch (attach) { | |
1284 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
1285 | right = left + 2*delta*ratio; | |
1286 | break; | |
1287 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
1288 | left = right - 2*delta*ratio; | |
1289 | break; | |
1290 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
1291 | right = left + 2*delta*ratio; | |
1292 | break; | |
1293 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
1294 | left = right - 2*delta*ratio; | |
1295 | break; | |
1296 | } | |
1297 | } | |
1298 | ||
a174a3c5 | 1299 | #ifdef _WIN32 |
2166f0fa | 1300 | // Check printer context that exists only for print operation |
a174a3c5 | 1301 | if (!thePrintContext.IsNull()) |
2166f0fa SK |
1302 | { |
1303 | // additional transformation matrix could be applied to | |
1304 | // render only those parts of viewport that will be | |
1305 | // passed to a printer as a current "frame" to provide | |
1306 | // tiling; scaling of graphics by matrix helps render a | |
1307 | // part of a view (frame) in same viewport, but with higher | |
1308 | // resolution | |
a174a3c5 | 1309 | thePrintContext->LoadProjTransformation(); |
2166f0fa SK |
1310 | |
1311 | // printing operation also assumes other viewport dimension | |
1312 | // to comply with transformation matrix or graphics scaling | |
1313 | // factors for tiling for layer redraw | |
1314 | GLsizei anViewportX = 0; | |
1315 | GLsizei anViewportY = 0; | |
a174a3c5 | 1316 | thePrintContext->GetLayerViewport (anViewportX, anViewportY); |
2166f0fa SK |
1317 | if (anViewportX != 0 && anViewportY != 0) |
1318 | glViewport (0, 0, anViewportX, anViewportY); | |
1319 | } | |
3c3131a0 | 1320 | #endif |
2166f0fa SK |
1321 | |
1322 | glOrtho (left, right, bottom, top, -1.0, 1.0); | |
1323 | ||
2166f0fa SK |
1324 | glPushAttrib ( |
1325 | GL_LIGHTING_BIT | GL_LINE_BIT | GL_POLYGON_BIT | | |
1326 | GL_DEPTH_BUFFER_BIT | GL_CURRENT_BIT | GL_TEXTURE_BIT ); | |
c9d4eb9d | 1327 | |
2166f0fa | 1328 | glDisable (GL_DEPTH_TEST); |
c9d4eb9d | 1329 | glDisable (GL_TEXTURE_1D); |
1330 | glDisable (GL_TEXTURE_2D); | |
1331 | glDisable (GL_LIGHTING); | |
1332 | ||
1333 | // TODO: Obsolete code, the display list is always empty now, to be removed | |
2166f0fa SK |
1334 | glCallList (ACLayer.ptrLayer->listIndex); |
1335 | ||
1336 | //calling dynamic render of LayerItems | |
1337 | if ( ACLayer.ptrLayer->layerData ) | |
1338 | { | |
1339 | InitLayerProp(ACLayer.ptrLayer->listIndex); | |
1340 | ((Visual3d_Layer*)ACLayer.ptrLayer->layerData)->RenderLayerItems(); | |
1341 | InitLayerProp(0); | |
1342 | } | |
1343 | ||
1344 | glPopAttrib (); | |
1345 | ||
2166f0fa SK |
1346 | glMatrixMode (GL_PROJECTION); |
1347 | glPopMatrix (); | |
1348 | ||
1349 | glMatrixMode( GL_MODELVIEW ); | |
1350 | glPopMatrix (); | |
1351 | ||
2166f0fa SK |
1352 | if (!ACLayer.sizeDependent) |
1353 | glViewport (0, 0, (GLsizei) ACView.DefWindow.dx, (GLsizei) ACView.DefWindow.dy); | |
1354 | ||
1355 | glFlush (); | |
2166f0fa SK |
1356 | } |
1357 | ||
1358 | /*----------------------------------------------------------------------*/ | |
1359 | ||
1360 | //call_togl_create_bg_texture | |
3c3131a0 | 1361 | void OpenGl_View::CreateBackgroundTexture (const Standard_CString theFilePath, |
1362 | const Aspect_FillMethod theFillStyle) | |
2166f0fa | 1363 | { |
3c3131a0 | 1364 | if (myBgTexture.TexId != 0) |
2166f0fa | 1365 | { |
3c3131a0 | 1366 | // delete existing texture |
1367 | glDeleteTextures (1, (GLuint* )&(myBgTexture.TexId)); | |
2166f0fa SK |
1368 | myBgTexture.TexId = 0; |
1369 | } | |
1370 | ||
3c3131a0 | 1371 | // load image from file |
1372 | Image_AlienPixMap anImageLoaded; | |
1373 | if (!anImageLoaded.Load (theFilePath)) | |
1374 | { | |
1375 | return; | |
1376 | } | |
1377 | ||
1378 | Image_PixMap anImage; | |
1379 | if (anImageLoaded.RowExtraBytes() == 0 && | |
1380 | (anImageLoaded.Format() == Image_PixMap::ImgRGB | |
1381 | || anImageLoaded.Format() == Image_PixMap::ImgRGB32 | |
1382 | || anImageLoaded.Format() == Image_PixMap::ImgRGBA)) | |
2166f0fa | 1383 | { |
3c3131a0 | 1384 | anImage.InitWrapper (anImageLoaded.Format(), anImageLoaded.ChangeData(), |
1385 | anImageLoaded.SizeX(), anImageLoaded.SizeY(), anImageLoaded.SizeRowBytes()); | |
1386 | } | |
1387 | else | |
1388 | { | |
1389 | // convert image to RGB format | |
1390 | if (!anImage.InitTrash (Image_PixMap::ImgRGB, anImageLoaded.SizeX(), anImageLoaded.SizeY())) | |
1391 | { | |
1392 | return; | |
1393 | } | |
1394 | ||
1395 | anImage.SetTopDown (false); | |
1396 | Image_PixMapData<Image_ColorRGB>& aDataNew = anImage.EditData<Image_ColorRGB>(); | |
1397 | Quantity_Color aSrcColor; | |
1398 | for (Standard_Size aRow = 0; aRow < anImage.SizeY(); ++aRow) | |
1399 | { | |
1400 | for (Standard_Size aCol = 0; aCol < anImage.SizeX(); ++aCol) | |
2166f0fa | 1401 | { |
6a7d83c4 | 1402 | aSrcColor = anImageLoaded.PixelColor ((Standard_Integer )aCol, (Standard_Integer )aRow); |
3c3131a0 | 1403 | Image_ColorRGB& aColor = aDataNew.ChangeValue (aRow, aCol); |
8263fcd3 | 1404 | aColor.r() = Standard_Byte(255.0 * aSrcColor.Red()); |
1405 | aColor.g() = Standard_Byte(255.0 * aSrcColor.Green()); | |
1406 | aColor.b() = Standard_Byte(255.0 * aSrcColor.Blue()); | |
2166f0fa | 1407 | } |
3c3131a0 | 1408 | } |
1409 | anImageLoaded.Clear(); | |
1410 | } | |
2166f0fa | 1411 | |
3c3131a0 | 1412 | // create MipMapped texture |
1413 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); | |
2166f0fa | 1414 | |
3c3131a0 | 1415 | GLuint aTextureId = 0; |
1416 | glGenTextures (1, &aTextureId); | |
1417 | glBindTexture (GL_TEXTURE_2D, aTextureId); | |
2166f0fa | 1418 | |
3c3131a0 | 1419 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); |
1420 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); | |
1421 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | |
1422 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); | |
2166f0fa | 1423 | |
3c3131a0 | 1424 | const GLenum aDataFormat = (anImage.Format() == Image_PixMap::ImgRGB) ? GL_RGB : GL_RGBA; |
1425 | gluBuild2DMipmaps (GL_TEXTURE_2D, 3/*4*/, | |
1426 | GLint(anImage.SizeX()), GLint(anImage.SizeY()), | |
1427 | aDataFormat, GL_UNSIGNED_BYTE, anImage.Data()); | |
2166f0fa | 1428 | |
3c3131a0 | 1429 | myBgTexture.TexId = aTextureId; |
1430 | myBgTexture.Width = (Standard_Integer )anImage.SizeX(); | |
1431 | myBgTexture.Height = (Standard_Integer )anImage.SizeY(); | |
1432 | myBgTexture.Style = theFillStyle; | |
2166f0fa SK |
1433 | } |
1434 | ||
1435 | /*----------------------------------------------------------------------*/ | |
1436 | ||
1437 | //call_togl_set_bg_texture_style | |
1438 | void OpenGl_View::SetBackgroundTextureStyle (const Aspect_FillMethod AFillStyle) | |
1439 | { | |
f8b2ed36 | 1440 | myBgTexture.Style = AFillStyle; |
2166f0fa SK |
1441 | } |
1442 | ||
1443 | /*----------------------------------------------------------------------*/ | |
1444 | ||
1445 | //call_togl_gradient_background | |
1446 | void OpenGl_View::SetBackgroundGradient (const Quantity_Color& AColor1, | |
1447 | const Quantity_Color& AColor2, | |
1448 | const Aspect_GradientFillMethod AType) | |
1449 | { | |
1450 | Standard_Real R,G,B; | |
1451 | AColor1.Values( R, G, B, Quantity_TOC_RGB ); | |
1452 | myBgGradient.color1.rgb[0] = ( Tfloat )R; | |
1453 | myBgGradient.color1.rgb[1] = ( Tfloat )G; | |
1454 | myBgGradient.color1.rgb[2] = ( Tfloat )B; | |
1455 | myBgGradient.color1.rgb[3] = 0.F; | |
1456 | ||
1457 | AColor2.Values( R, G, B, Quantity_TOC_RGB ); | |
1458 | myBgGradient.color2.rgb[0] = ( Tfloat )R; | |
1459 | myBgGradient.color2.rgb[1] = ( Tfloat )G; | |
1460 | myBgGradient.color2.rgb[2] = ( Tfloat )B; | |
1461 | myBgGradient.color2.rgb[3] = 0.F; | |
1462 | ||
1463 | myBgGradient.type = AType; | |
1464 | } | |
1465 | ||
1466 | /*----------------------------------------------------------------------*/ | |
1467 | ||
1468 | //call_togl_set_gradient_type | |
1469 | void OpenGl_View::SetBackgroundGradientType (const Aspect_GradientFillMethod AType) | |
1470 | { | |
f8b2ed36 | 1471 | myBgGradient.type = AType; |
2166f0fa SK |
1472 | } |
1473 | ||
59f45b7c | 1474 | //======================================================================= |
1475 | //function : AddZLayer | |
3c3131a0 | 1476 | //purpose : |
59f45b7c | 1477 | //======================================================================= |
1478 | ||
1479 | void OpenGl_View::AddZLayer (const Standard_Integer theLayerId) | |
1480 | { | |
1481 | myZLayers.AddLayer (theLayerId); | |
1482 | } | |
1483 | ||
1484 | //======================================================================= | |
1485 | //function : RemoveZLayer | |
3c3131a0 | 1486 | //purpose : |
59f45b7c | 1487 | //======================================================================= |
1488 | ||
1489 | void OpenGl_View::RemoveZLayer (const Standard_Integer theLayerId) | |
1490 | { | |
1491 | myZLayers.RemoveLayer (theLayerId); | |
1492 | } | |
1493 | ||
1494 | //======================================================================= | |
1495 | //function : DisplayStructure | |
3c3131a0 | 1496 | //purpose : |
59f45b7c | 1497 | //======================================================================= |
1498 | ||
1499 | void OpenGl_View::DisplayStructure (const OpenGl_Structure *theStructure, | |
1500 | const Standard_Integer thePriority) | |
1501 | { | |
1502 | Standard_Integer aZLayer = theStructure->GetZLayer (); | |
1503 | myZLayers.AddStructure (theStructure, aZLayer, thePriority); | |
1504 | } | |
1505 | ||
1506 | //======================================================================= | |
1507 | //function : EraseStructure | |
3c3131a0 | 1508 | //purpose : |
59f45b7c | 1509 | //======================================================================= |
1510 | ||
1511 | void OpenGl_View::EraseStructure (const OpenGl_Structure *theStructure) | |
1512 | { | |
1513 | Standard_Integer aZLayer = theStructure->GetZLayer (); | |
1514 | myZLayers.RemoveStructure (theStructure, aZLayer); | |
1515 | } | |
1516 | ||
1517 | //======================================================================= | |
1518 | //function : ChangeZLayer | |
1519 | //purpose : | |
1520 | //======================================================================= | |
1521 | ||
1522 | void OpenGl_View::ChangeZLayer (const OpenGl_Structure *theStructure, | |
1523 | const Standard_Integer theNewLayerId) | |
1524 | { | |
1525 | Standard_Integer anOldLayer = theStructure->GetZLayer (); | |
1526 | myZLayers.ChangeLayer (theStructure, anOldLayer, theNewLayerId); | |
1527 | } |