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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 | ||
30f0ad28 | 29 | #include <NCollection_Mat4.hxx> |
30 | ||
2166f0fa | 31 | #include <OpenGl_AspectLine.hxx> |
30f0ad28 | 32 | #include <OpenGl_Context.hxx> |
2166f0fa | 33 | #include <OpenGl_Display.hxx> |
30f0ad28 | 34 | #include <OpenGl_Matrix.hxx> |
2166f0fa SK |
35 | #include <OpenGl_Workspace.hxx> |
36 | #include <OpenGl_View.hxx> | |
37 | #include <OpenGl_Trihedron.hxx> | |
38 | #include <OpenGl_GraduatedTrihedron.hxx> | |
39 | #include <OpenGl_PrinterContext.hxx> | |
30f0ad28 | 40 | #include <OpenGl_ShaderManager.hxx> |
41 | #include <OpenGl_ShaderProgram.hxx> | |
59f45b7c | 42 | #include <OpenGl_Structure.hxx> |
2166f0fa | 43 | |
2166f0fa SK |
44 | #define EPSI 0.0001 |
45 | ||
12381341 | 46 | namespace |
47 | { | |
48 | ||
49 | static const GLfloat THE_DEFAULT_AMBIENT[4] = { 0.0f, 0.0f, 0.0f, 1.0f }; | |
50 | static const GLfloat THE_DEFAULT_SPOT_DIR[3] = { 0.0f, 0.0f, -1.0f }; | |
51 | static const GLfloat THE_DEFAULT_SPOT_EXPONENT = 0.0f; | |
52 | static const GLfloat THE_DEFAULT_SPOT_CUTOFF = 180.0f; | |
53 | ||
54 | }; | |
2166f0fa | 55 | |
30f0ad28 | 56 | extern void InitLayerProp (const int theListId); //szvgl: defined in OpenGl_GraphicDriver_Layer.cxx |
2166f0fa SK |
57 | |
58 | /*----------------------------------------------------------------------*/ | |
59 | ||
60 | struct OPENGL_CLIP_PLANE | |
61 | { | |
62 | GLboolean isEnabled; | |
63 | GLdouble Equation[4]; | |
1c35b92f | 64 | DEFINE_STANDARD_ALLOC |
2166f0fa SK |
65 | }; |
66 | ||
67 | /*----------------------------------------------------------------------*/ | |
68 | /* | |
69 | * Fonctions privees | |
70 | */ | |
71 | ||
72 | /*-----------------------------------------------------------------*/ | |
73 | /* | |
74 | * Set des lumieres | |
75 | */ | |
12381341 | 76 | static void bind_light (const OpenGl_Light& theLight, |
4fe9ad57 | 77 | GLenum& theLightGlId, |
78 | Graphic3d_Vec4& theAmbientColor) | |
2166f0fa SK |
79 | { |
80 | // Only 8 lights in OpenGL... | |
12381341 | 81 | if (theLightGlId > GL_LIGHT7) |
2166f0fa | 82 | { |
12381341 | 83 | return; |
2166f0fa SK |
84 | } |
85 | ||
12381341 | 86 | if (theLight.Type == Visual3d_TOLS_AMBIENT) |
2166f0fa | 87 | { |
4fe9ad57 | 88 | // add RGBA intensity of the ambient light |
89 | theAmbientColor += theLight.Color; | |
12381341 | 90 | return; |
91 | } | |
2166f0fa | 92 | |
12381341 | 93 | // the light is a headlight? |
94 | GLint aMatrixModeOld = 0; | |
95 | if (theLight.IsHeadlight) | |
96 | { | |
97 | glGetIntegerv (GL_MATRIX_MODE, &aMatrixModeOld); | |
98 | glMatrixMode (GL_MODELVIEW); | |
99 | glPushMatrix(); | |
100 | glLoadIdentity(); | |
2166f0fa SK |
101 | } |
102 | ||
12381341 | 103 | // setup light type |
104 | switch (theLight.Type) | |
3c3131a0 | 105 | { |
12381341 | 106 | case Visual3d_TOLS_DIRECTIONAL: |
107 | { | |
108 | // if the last parameter of GL_POSITION, is zero, the corresponding light source is a Directional one | |
109 | const OpenGl_Vec4 anInfDir = -theLight.Direction; | |
110 | ||
111 | // to create a realistic effect, set the GL_SPECULAR parameter to the same value as the GL_DIFFUSE. | |
112 | glLightfv (theLightGlId, GL_AMBIENT, THE_DEFAULT_AMBIENT); | |
113 | glLightfv (theLightGlId, GL_DIFFUSE, theLight.Color.GetData()); | |
114 | glLightfv (theLightGlId, GL_SPECULAR, theLight.Color.GetData()); | |
115 | glLightfv (theLightGlId, GL_POSITION, anInfDir.GetData()); | |
116 | glLightfv (theLightGlId, GL_SPOT_DIRECTION, THE_DEFAULT_SPOT_DIR); | |
117 | glLightf (theLightGlId, GL_SPOT_EXPONENT, THE_DEFAULT_SPOT_EXPONENT); | |
118 | glLightf (theLightGlId, GL_SPOT_CUTOFF, THE_DEFAULT_SPOT_CUTOFF); | |
119 | break; | |
120 | } | |
121 | case Visual3d_TOLS_POSITIONAL: | |
122 | { | |
123 | // to create a realistic effect, set the GL_SPECULAR parameter to the same value as the GL_DIFFUSE | |
124 | glLightfv (theLightGlId, GL_AMBIENT, THE_DEFAULT_AMBIENT); | |
125 | glLightfv (theLightGlId, GL_DIFFUSE, theLight.Color.GetData()); | |
126 | glLightfv (theLightGlId, GL_SPECULAR, theLight.Color.GetData()); | |
127 | glLightfv (theLightGlId, GL_POSITION, theLight.Position.GetData()); | |
128 | glLightfv (theLightGlId, GL_SPOT_DIRECTION, THE_DEFAULT_SPOT_DIR); | |
129 | glLightf (theLightGlId, GL_SPOT_EXPONENT, THE_DEFAULT_SPOT_EXPONENT); | |
130 | glLightf (theLightGlId, GL_SPOT_CUTOFF, THE_DEFAULT_SPOT_CUTOFF); | |
131 | glLightf (theLightGlId, GL_CONSTANT_ATTENUATION, theLight.ConstAttenuation()); | |
132 | glLightf (theLightGlId, GL_LINEAR_ATTENUATION, theLight.LinearAttenuation()); | |
133 | glLightf (theLightGlId, GL_QUADRATIC_ATTENUATION, 0.0); | |
134 | break; | |
135 | } | |
136 | case Visual3d_TOLS_SPOT: | |
137 | { | |
138 | glLightfv (theLightGlId, GL_AMBIENT, THE_DEFAULT_AMBIENT); | |
139 | glLightfv (theLightGlId, GL_DIFFUSE, theLight.Color.GetData()); | |
140 | glLightfv (theLightGlId, GL_SPECULAR, theLight.Color.GetData()); | |
141 | glLightfv (theLightGlId, GL_POSITION, theLight.Position.GetData()); | |
142 | glLightfv (theLightGlId, GL_SPOT_DIRECTION, theLight.Direction.GetData()); | |
143 | glLightf (theLightGlId, GL_SPOT_EXPONENT, theLight.Concentration() * 128.0f); | |
144 | glLightf (theLightGlId, GL_SPOT_CUTOFF, (theLight.Angle() * 180.0f) / GLfloat(M_PI)); | |
145 | glLightf (theLightGlId, GL_CONSTANT_ATTENUATION, theLight.ConstAttenuation()); | |
146 | glLightf (theLightGlId, GL_LINEAR_ATTENUATION, theLight.LinearAttenuation()); | |
147 | glLightf (theLightGlId, GL_QUADRATIC_ATTENUATION, 0.0f); | |
148 | break; | |
149 | } | |
2166f0fa SK |
150 | } |
151 | ||
12381341 | 152 | // restore matrix in case of headlight |
153 | if (theLight.IsHeadlight) | |
2166f0fa SK |
154 | { |
155 | glPopMatrix(); | |
12381341 | 156 | glMatrixMode (aMatrixModeOld); |
2166f0fa | 157 | } |
12381341 | 158 | |
159 | glEnable (theLightGlId++); | |
2166f0fa SK |
160 | } |
161 | ||
162 | /*----------------------------------------------------------------------*/ | |
163 | /* | |
164 | * Prototypes | |
165 | */ | |
166 | ||
167 | static void call_util_apply_trans2( float ix, float iy, float iz, matrix3 mat, | |
168 | float *ox, float *oy, float *oz ); | |
169 | static void call_util_mat_mul( matrix3 mat_a, matrix3 mat_b, matrix3 mat_c); | |
170 | ||
171 | /*----------------------------------------------------------------------*/ | |
172 | /* | |
173 | * Fonctions externes | |
174 | */ | |
175 | ||
176 | /* | |
177 | * Evaluates orientation matrix. | |
178 | */ | |
179 | /* OCC18942: obsolete in OCCT6.3, might be removed in further versions! */ | |
180 | void call_func_eval_ori_matrix3 (const point3* vrp, // view reference point | |
181 | const vec3* vpn, // view plane normal | |
182 | const vec3* vup, // view up vector | |
3c3131a0 | 183 | int* err_ind, |
2166f0fa SK |
184 | float mout[4][4]) // OUT view orientation matrix |
185 | { | |
186 | ||
187 | /* Translate to VRP then change the basis. | |
188 | * The old basis is: e1 = < 1, 0, 0>, e2 = < 0, 1, 0>, e3 = < 0, 0, 1>. | |
189 | * The new basis is: ("x" means cross product) | |
190 | * e3' = VPN / |VPN| | |
191 | * e1' = VUP x VPN / |VUP x VPN| | |
192 | * e2' = e3' x e1' | |
193 | * Therefore the transform from old to new is x' = TAx, where: | |
194 | * | |
195 | * | e1'x e2'x e3'x 0 | | 1 0 0 0 | | |
196 | * A = | e1'y e2'y e3'y 0 |, T = | 0 1 0 0 | | |
197 | * | e1'z e2'z e3'z 0 | | 0 0 1 0 | | |
198 | * | 0 0 0 1 | | -vrp.x -vrp.y -vrp.z 1 | | |
199 | * | |
200 | */ | |
201 | ||
202 | /* | |
203 | * These ei's are really ei primes. | |
204 | */ | |
205 | register float (*m)[4][4]; | |
206 | point3 e1, e2, e3, e4; | |
207 | double s, v; | |
208 | ||
209 | /* | |
210 | * e1' = VUP x VPN / |VUP x VPN|, but do the division later. | |
211 | */ | |
212 | e1.x = vup->delta_y * vpn->delta_z - vup->delta_z * vpn->delta_y; | |
213 | e1.y = vup->delta_z * vpn->delta_x - vup->delta_x * vpn->delta_z; | |
214 | e1.z = vup->delta_x * vpn->delta_y - vup->delta_y * vpn->delta_x; | |
215 | s = sqrt( e1.x * e1.x + e1.y * e1.y + e1.z * e1.z); | |
216 | e3.x = vpn->delta_x; | |
217 | e3.y = vpn->delta_y; | |
218 | e3.z = vpn->delta_z; | |
219 | v = sqrt( e3.x * e3.x + e3.y * e3.y + e3.z * e3.z); | |
220 | /* | |
221 | * Check for vup and vpn colinear (zero dot product). | |
222 | */ | |
223 | if ((s > -EPSI) && (s < EPSI)) | |
224 | *err_ind = 2; | |
225 | else | |
226 | /* | |
227 | * Check for a normal vector not null. | |
228 | */ | |
229 | if ((v > -EPSI) && (v < EPSI)) | |
230 | *err_ind = 3; | |
231 | else { | |
232 | /* | |
233 | * Normalize e1 | |
234 | */ | |
235 | e1.x /= ( float )s; | |
236 | e1.y /= ( float )s; | |
237 | e1.z /= ( float )s; | |
238 | /* | |
239 | * e3 = VPN / |VPN| | |
240 | */ | |
241 | e3.x /= ( float )v; | |
242 | e3.y /= ( float )v; | |
243 | e3.z /= ( float )v; | |
244 | /* | |
245 | * e2 = e3 x e1 | |
246 | */ | |
247 | e2.x = e3.y * e1.z - e3.z * e1.y; | |
248 | e2.y = e3.z * e1.x - e3.x * e1.z; | |
249 | e2.z = e3.x * e1.y - e3.y * e1.x; | |
250 | /* | |
251 | * Add the translation | |
252 | */ | |
253 | e4.x = -( e1.x * vrp->x + e1.y * vrp->y + e1.z * vrp->z); | |
254 | e4.y = -( e2.x * vrp->x + e2.y * vrp->y + e2.z * vrp->z); | |
255 | e4.z = -( e3.x * vrp->x + e3.y * vrp->y + e3.z * vrp->z); | |
256 | /* | |
257 | * Homogeneous entries | |
258 | * | |
259 | * | e1.x e2.x e3.x 0.0 | | 1 0 0 0 | | |
260 | * | e1.y e2.y e3.y 0.0 | * | 0 1 0 0 | | |
261 | * | e1.z e2.z e3.z 0.0 | | a b 1 c | | |
262 | * | e4.x e4.y e4.z 1.0 | | 0 0 0 1 | | |
263 | */ | |
264 | ||
265 | m = (float (*)[4][4])mout; | |
266 | ||
267 | (*m)[0][0] = e1.x; | |
268 | (*m)[0][1] = e2.x; | |
269 | (*m)[0][2] = e3.x; | |
270 | (*m)[0][3] = ( float )0.0; | |
271 | ||
272 | (*m)[1][0] = e1.y; | |
273 | (*m)[1][1] = e2.y; | |
274 | (*m)[1][2] = e3.y; | |
275 | (*m)[1][3] = ( float )0.0; | |
276 | ||
277 | (*m)[2][0] = e1.z; | |
278 | (*m)[2][1] = e2.z; | |
279 | (*m)[2][2] = e3.z; | |
280 | (*m)[2][3] = ( float )0.0; | |
281 | ||
282 | (*m)[3][0] = e4.x; | |
283 | (*m)[3][1] = e4.y; | |
284 | (*m)[3][2] = e4.z; | |
285 | (*m)[3][3] = ( float )1.0; | |
286 | ||
287 | *err_ind = 0; | |
288 | } | |
289 | } | |
290 | ||
291 | /*----------------------------------------------------------------------*/ | |
292 | /* | |
293 | * Evaluates mapping matrix. | |
294 | */ | |
295 | /* OCC18942: obsolete in OCCT6.3, might be removed in further versions! */ | |
296 | void call_func_eval_map_matrix3( | |
3c3131a0 | 297 | view_map3 *Map, |
298 | int *err_ind, | |
2166f0fa SK |
299 | matrix3 mat) |
300 | { | |
301 | int i, j; | |
302 | matrix3 Tpar, Spar; | |
303 | matrix3 Tper, Sper; | |
304 | matrix3 Shear; | |
305 | matrix3 Scale; | |
306 | matrix3 Tprp; | |
307 | matrix3 aux_mat1, aux_mat2, aux_mat3; | |
308 | point3 Prp; | |
309 | ||
310 | *err_ind = 0; | |
311 | for (i=0; i<4; i++) | |
312 | for (j=0; j<4; j++) | |
313 | Spar[i][j] = Sper[i][j] = aux_mat1[i][j] = aux_mat2[i][j] = | |
314 | aux_mat3[i][j] = Tper[i][j] = Tpar[i][j] = Tprp[i][j] = | |
315 | Shear[i][j] = Scale[i][j] = ( float )(i == j); | |
316 | ||
317 | Prp.x = Map->proj_ref_point.x; | |
318 | Prp.y = Map->proj_ref_point.y; | |
319 | Prp.z = Map->proj_ref_point.z; | |
320 | ||
321 | /* | |
322 | * Type Parallele | |
3c3131a0 | 323 | */ |
2166f0fa SK |
324 | if (Map->proj_type == TYPE_PARAL) |
325 | { | |
326 | float umid, vmid; | |
327 | point3 temp; | |
328 | ||
329 | #ifdef FMN | |
330 | float cx, cy, gx, gy, xsf, ysf, zsf; | |
331 | float fpd, bpd; | |
332 | float dopx, dopy, dopz; | |
333 | matrix3 tmat = { { ( 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 smat = { { ( 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 shmat = { { ( 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 | matrix3 tshmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
346 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
347 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
348 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
349 | ||
350 | /* centers */ | |
351 | cx = Map->win.x_min + Map->win.x_max, cx /= ( float )2.0; | |
352 | cy = Map->win.y_min + Map->win.y_max, cy /= ( float )2.0; | |
353 | ||
354 | gx = 2.0/ (Map->win.x_max - Map->win.x_min); | |
355 | gy = 2.0/ (Map->win.y_max - Map->win.y_min); | |
356 | ||
357 | tmat[0][3] = -cx; | |
358 | tmat[1][3] = -cy; | |
359 | tmat[2][3] = (Map->front_plane + Map->back_plane)/(Map->front_plane - Map->back_plane); | |
360 | ||
361 | smat[0][0] = gx; | |
362 | smat[1][1] = gy; | |
363 | smat[2][2] = -2./(Map->front_plane - Map->back_plane); | |
364 | ||
365 | /* scale factors */ | |
366 | dopx = cx - Prp.x; | |
367 | dopy = cy - Prp.y; | |
368 | dopz = - Prp.z; | |
369 | ||
370 | /* map matrix */ | |
371 | shmat[0][2] = -(dopx/dopz); | |
372 | shmat[1][2] = -(dopy/dopz); | |
373 | ||
374 | /* multiply to obtain mapping matrix */ | |
375 | call_util_mat_mul( tmat, shmat, tshmat ); | |
376 | call_util_mat_mul( smat, tshmat, mat ); | |
377 | ||
3c3131a0 | 378 | return; |
2166f0fa SK |
379 | #endif |
380 | ||
381 | /* CAL */ | |
382 | Map->proj_vp.z_min = ( float )0.0; | |
383 | Map->proj_vp.z_max = ( float )1.0; | |
384 | /* CAL */ | |
385 | ||
386 | /* Shear matrix calculation */ | |
387 | umid = ( float )(Map->win.x_min+Map->win.x_max)/( float )2.0; | |
388 | vmid = ( float )(Map->win.y_min+Map->win.y_max)/( float )2.0; | |
389 | if(Prp.z == Map->view_plane){ | |
390 | /* Projection reference point is on the view plane */ | |
391 | *err_ind = 1; | |
392 | return; | |
393 | } | |
394 | Shear[2][0] = ( float )(-1.0) * ((Prp.x-umid)/(Prp.z-Map->view_plane)); | |
395 | Shear[2][1] = ( float )(-1.0) * ((Prp.y-vmid)/(Prp.z-Map->view_plane)); | |
396 | ||
397 | /* | |
398 | * Calculate the lower left coordinate of the view plane | |
399 | * after the Shearing Transformation. | |
400 | */ | |
401 | call_util_apply_trans2(Map->win.x_min, Map->win.y_min, | |
402 | Map->view_plane, Shear, &(temp.x), &(temp.y), &(temp.z)); | |
403 | ||
404 | /* Translate the back plane to the origin */ | |
405 | Tpar[3][0] = ( float )(-1.0) * temp.x; | |
406 | Tpar[3][1] = ( float )(-1.0) * temp.y; | |
407 | Tpar[3][2] = ( float )(-1.0) * Map->back_plane; | |
408 | ||
409 | call_util_mat_mul(Shear, Tpar, aux_mat1); | |
410 | ||
411 | /* Calculation of Scaling transformation */ | |
412 | Spar[0][0] = ( float )1.0 / (Map->win.x_max - Map->win.x_min); | |
413 | Spar[1][1] = ( float )1.0 / (Map->win.y_max - Map->win.y_min); | |
414 | Spar[2][2] = ( float )1.0 / (Map->front_plane - Map->back_plane ); | |
415 | call_util_mat_mul (aux_mat1, Spar, aux_mat2); | |
416 | /* Atlast we transformed view volume to NPC */ | |
417 | ||
418 | /* Translate and scale the view plane to projection view port */ | |
419 | if(Map->proj_vp.x_min < 0.0 || Map->proj_vp.y_min < 0.0 || | |
420 | Map->proj_vp.z_min < 0.0 || Map->proj_vp.x_max > 1.0 || | |
421 | Map->proj_vp.y_max > 1.0 || Map->proj_vp.z_max > 1.0 || | |
422 | Map->proj_vp.x_min > Map->proj_vp.x_max || | |
423 | Map->proj_vp.y_min > Map->proj_vp.y_max || | |
424 | Map->proj_vp.z_min > Map->proj_vp.z_max){ | |
425 | *err_ind = 1; | |
426 | return; | |
427 | } | |
428 | for(i=0; i<4; i++) | |
429 | for(j=0; j<4; j++) | |
430 | aux_mat1[i][j] = (float)(i==j); | |
431 | aux_mat1[0][0] = Map->proj_vp.x_max-Map->proj_vp.x_min; | |
432 | aux_mat1[1][1] = Map->proj_vp.y_max-Map->proj_vp.y_min; | |
433 | aux_mat1[2][2] = Map->proj_vp.z_max-Map->proj_vp.z_min; | |
434 | aux_mat1[3][0] = Map->proj_vp.x_min; | |
435 | aux_mat1[3][1] = Map->proj_vp.y_min; | |
436 | aux_mat1[3][2] = Map->proj_vp.z_min; | |
437 | call_util_mat_mul (aux_mat2, aux_mat1, mat); | |
438 | ||
3c3131a0 | 439 | return; |
440 | } | |
2166f0fa SK |
441 | |
442 | /* | |
443 | * Type Perspective | |
3c3131a0 | 444 | */ |
2166f0fa SK |
445 | else if (Map->proj_type == TYPE_PERSPECT) |
446 | { | |
447 | float umid, vmid; | |
448 | float B, F, V; | |
449 | float Zvmin; | |
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 | B = Map->back_plane; | |
457 | F = Map->front_plane; | |
458 | V = Map->view_plane; | |
459 | ||
460 | if(Prp.z == Map->view_plane){ | |
461 | /* Centre of Projection is on the view plane */ | |
462 | *err_ind = 1; | |
463 | return; | |
464 | } | |
465 | if(Map->proj_vp.x_min < 0.0 || Map->proj_vp.y_min < 0.0 || | |
466 | Map->proj_vp.z_min < 0.0 || Map->proj_vp.x_max > 1.0 || | |
467 | Map->proj_vp.y_max > 1.0 || Map->proj_vp.z_max > 1.0 || | |
468 | Map->proj_vp.x_min > Map->proj_vp.x_max || | |
469 | Map->proj_vp.y_min > Map->proj_vp.y_max || | |
470 | Map->proj_vp.z_min > Map->proj_vp.z_max || | |
471 | F < B){ | |
472 | *err_ind = 1; | |
473 | return; | |
474 | } | |
475 | ||
476 | /* This is the transformation to move VRC to Center Of Projection */ | |
477 | Tprp[3][0] = ( float )(-1.0)*Prp.x; | |
478 | Tprp[3][1] = ( float )(-1.0)*Prp.y; | |
479 | Tprp[3][2] = ( float )(-1.0)*Prp.z; | |
480 | ||
481 | /* Calculation of Shear matrix */ | |
482 | umid = ( float )(Map->win.x_min+Map->win.x_max)/( float )2.0-Prp.x; | |
483 | vmid = ( float )(Map->win.y_min+Map->win.y_max)/( float )2.0-Prp.y; | |
484 | Shear[2][0] = ( float )(-1.0)*umid/(Map->view_plane-Prp.z); | |
485 | Shear[2][1] = ( float )(-1.0)*vmid/(Map->view_plane-Prp.z); | |
486 | call_util_mat_mul(Tprp, Shear, aux_mat3); | |
487 | ||
488 | /* Scale the view volume to canonical view volume | |
489 | * Centre of projection at origin. | |
490 | * 0 <= N <= -1, -0.5 <= U <= 0.5, -0.5 <= V <= 0.5 | |
491 | */ | |
492 | Scale[0][0] = (( float )(-1.0)*Prp.z+V)/ | |
493 | ((Map->win.x_max-Map->win.x_min)*(( float )(-1.0)*Prp.z+B)); | |
494 | Scale[1][1] = (( float )(-1.0)*Prp.z+V)/ | |
495 | ((Map->win.y_max-Map->win.y_min)*(( float )(-1.0)*Prp.z+B)); | |
496 | Scale[2][2] = ( float )(-1.0) / (( float )(-1.0)*Prp.z+B); | |
497 | ||
498 | call_util_mat_mul(aux_mat3, Scale, aux_mat1); | |
499 | ||
500 | /* | |
501 | * Transform the Perspective view volume into | |
502 | * Parallel view volume. | |
503 | * Lower left coordinate: (-0.5,-0.5, -1) | |
504 | * Upper right coordinate: (0.5, 0.5, 1.0) | |
505 | */ | |
506 | Zvmin = ( float )(-1.0*(-1.0*Prp.z+F)/(-1.0*Prp.z+B)); | |
507 | aux_mat2[2][2] = ( float )1.0/(( float )1.0+Zvmin); | |
508 | aux_mat2[2][3] = ( float )(-1.0); | |
509 | aux_mat2[3][2] = ( float )(-1.0)*Zvmin*aux_mat2[2][2]; | |
510 | aux_mat2[3][3] = ( float )0.0; | |
511 | call_util_mat_mul(aux_mat1, aux_mat2, Shear); | |
512 | ||
513 | for(i=0; i<4; i++) | |
514 | for(j=0; j<4; j++) | |
515 | aux_mat1[i][j] = aux_mat2[i][j] = (float)(i==j); | |
516 | ||
517 | /* Translate and scale the view plane to projection view port */ | |
518 | aux_mat2[0][0] = (Map->proj_vp.x_max-Map->proj_vp.x_min); | |
519 | aux_mat2[1][1] = (Map->proj_vp.y_max-Map->proj_vp.y_min); | |
520 | aux_mat2[2][2] = (Map->proj_vp.z_max-Map->proj_vp.z_min); | |
521 | aux_mat2[3][0] = aux_mat2[0][0]/( float )2.0+Map->proj_vp.x_min; | |
522 | aux_mat2[3][1] = aux_mat2[1][1]/( float )2.0+Map->proj_vp.y_min; | |
523 | aux_mat2[3][2] = aux_mat2[2][2]+Map->proj_vp.z_min; | |
524 | call_util_mat_mul (Shear, aux_mat2, mat); | |
525 | ||
526 | return; | |
527 | } | |
528 | else | |
529 | *err_ind = 1; | |
530 | } | |
531 | ||
532 | /*----------------------------------------------------------------------*/ | |
533 | ||
534 | static void | |
535 | call_util_apply_trans2( float ix, float iy, float iz, matrix3 mat, | |
536 | float *ox, float *oy, float *oz ) | |
537 | { | |
538 | float temp; | |
539 | *ox = ix*mat[0][0]+iy*mat[1][0]+iz*mat[2][0]+mat[3][0]; | |
540 | *oy = ix*mat[0][1]+iy*mat[1][1]+iz*mat[2][1]+mat[3][1]; | |
541 | *oz = ix*mat[0][2]+iy*mat[1][2]+iz*mat[2][2]+mat[3][2]; | |
542 | temp = ix * mat[0][3]+iy * mat[1][3]+iz * mat[2][3]+mat[3][3]; | |
543 | *ox /= temp; | |
544 | *oy /= temp; | |
545 | *oz /= temp; | |
546 | } | |
547 | ||
548 | /*----------------------------------------------------------------------*/ | |
549 | ||
550 | static void | |
551 | call_util_mat_mul( matrix3 mat_a, matrix3 mat_b, matrix3 mat_c) | |
552 | { | |
553 | int i, j, k; | |
554 | ||
555 | for (i=0; i<4; i++) | |
556 | for (j=0; j<4; j++) | |
557 | for (mat_c[i][j] = ( float )0.0,k=0; k<4; k++) | |
558 | mat_c[i][j] += mat_a[i][k] * mat_b[k][j]; | |
559 | } | |
560 | ||
561 | /*----------------------------------------------------------------------*/ | |
562 | ||
e276548b | 563 | void OpenGl_View::DrawBackground (const Handle(OpenGl_Workspace) &AWorkspace) |
2166f0fa | 564 | { |
2166f0fa SK |
565 | ///////////////////////////////////////////////////////////////////////////// |
566 | // Step 1: Prepare for redraw | |
567 | ||
568 | // Render background | |
569 | if ( (AWorkspace->NamedStatus & OPENGL_NS_WHITEBACK) == 0 && | |
e276548b | 570 | ( myBgTexture.TexId != 0 || myBgGradient.type != Aspect_GFM_NONE ) ) |
2166f0fa SK |
571 | { |
572 | const Standard_Integer aViewWidth = AWorkspace->Width(); | |
573 | const Standard_Integer aViewHeight = AWorkspace->Height(); | |
574 | ||
575 | glPushAttrib( GL_ENABLE_BIT | GL_TEXTURE_BIT ); | |
576 | ||
577 | glMatrixMode( GL_PROJECTION ); | |
578 | glPushMatrix(); | |
579 | glLoadIdentity(); | |
580 | glMatrixMode( GL_MODELVIEW ); | |
581 | glPushMatrix(); | |
582 | glLoadIdentity(); | |
583 | ||
584 | if ( glIsEnabled( GL_DEPTH_TEST ) ) | |
585 | glDisable( GL_DEPTH_TEST ); //push GL_ENABLE_BIT | |
586 | ||
f8b2ed36 | 587 | // drawing bg gradient if: |
588 | // - gradient fill type is not Aspect_GFM_NONE and | |
589 | // - either background texture is no specified or it is drawn in Aspect_FM_CENTERED mode | |
590 | if ( ( myBgGradient.type != Aspect_GFM_NONE ) && | |
e276548b | 591 | ( myBgTexture.TexId == 0 || myBgTexture.Style == Aspect_FM_CENTERED || |
592 | myBgTexture.Style == Aspect_FM_NONE ) ) | |
2166f0fa SK |
593 | { |
594 | Tfloat* corner1 = 0;/* -1,-1*/ | |
595 | Tfloat* corner2 = 0;/* 1,-1*/ | |
596 | Tfloat* corner3 = 0;/* 1, 1*/ | |
597 | Tfloat* corner4 = 0;/* -1, 1*/ | |
598 | Tfloat dcorner1[3]; | |
599 | Tfloat dcorner2[3]; | |
600 | ||
601 | switch( myBgGradient.type ) | |
602 | { | |
e276548b | 603 | case Aspect_GFM_HOR: |
604 | corner1 = myBgGradient.color1.rgb; | |
605 | corner2 = myBgGradient.color2.rgb; | |
606 | corner3 = myBgGradient.color2.rgb; | |
607 | corner4 = myBgGradient.color1.rgb; | |
608 | break; | |
609 | case Aspect_GFM_VER: | |
610 | corner1 = myBgGradient.color2.rgb; | |
611 | corner2 = myBgGradient.color2.rgb; | |
612 | corner3 = myBgGradient.color1.rgb; | |
613 | corner4 = myBgGradient.color1.rgb; | |
614 | break; | |
615 | case Aspect_GFM_DIAG1: | |
616 | corner2 = myBgGradient.color2.rgb; | |
617 | corner4 = myBgGradient.color1.rgb; | |
618 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner2[0] + corner4[0]); | |
619 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner2[1] + corner4[1]); | |
620 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner2[2] + corner4[2]); | |
621 | corner1 = dcorner1; | |
622 | corner3 = dcorner2; | |
623 | break; | |
624 | case Aspect_GFM_DIAG2: | |
625 | corner1 = myBgGradient.color2.rgb; | |
626 | corner3 = myBgGradient.color1.rgb; | |
627 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner1[0] + corner3[0]); | |
628 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner1[1] + corner3[1]); | |
629 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner1[2] + corner3[2]); | |
630 | corner2 = dcorner1; | |
631 | corner4 = dcorner2; | |
632 | break; | |
633 | case Aspect_GFM_CORNER1: | |
634 | corner1 = myBgGradient.color2.rgb; | |
635 | corner2 = myBgGradient.color2.rgb; | |
636 | corner3 = myBgGradient.color2.rgb; | |
637 | corner4 = myBgGradient.color1.rgb; | |
638 | break; | |
639 | case Aspect_GFM_CORNER2: | |
640 | corner1 = myBgGradient.color2.rgb; | |
641 | corner2 = myBgGradient.color2.rgb; | |
642 | corner3 = myBgGradient.color1.rgb; | |
643 | corner4 = myBgGradient.color2.rgb; | |
644 | break; | |
645 | case Aspect_GFM_CORNER3: | |
646 | corner1 = myBgGradient.color2.rgb; | |
647 | corner2 = myBgGradient.color1.rgb; | |
648 | corner3 = myBgGradient.color2.rgb; | |
649 | corner4 = myBgGradient.color2.rgb; | |
650 | break; | |
651 | case Aspect_GFM_CORNER4: | |
652 | corner1 = myBgGradient.color1.rgb; | |
653 | corner2 = myBgGradient.color2.rgb; | |
654 | corner3 = myBgGradient.color2.rgb; | |
655 | corner4 = myBgGradient.color2.rgb; | |
656 | break; | |
657 | default: | |
658 | //printf("gradient background type not right\n"); | |
659 | break; | |
2166f0fa SK |
660 | } |
661 | ||
662 | // Save GL parameters | |
663 | glDisable( GL_LIGHTING ); //push GL_ENABLE_BIT | |
664 | ||
665 | GLint curSM; | |
666 | glGetIntegerv( GL_SHADE_MODEL, &curSM ); | |
667 | if ( curSM != GL_SMOOTH ) | |
668 | glShadeModel( GL_SMOOTH ); //push GL_LIGHTING_BIT | |
669 | ||
670 | glBegin(GL_TRIANGLE_FAN); | |
f8b2ed36 | 671 | if( myBgGradient.type != Aspect_GFM_CORNER1 && myBgGradient.type != Aspect_GFM_CORNER3 ) |
2166f0fa SK |
672 | { |
673 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
674 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
675 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
676 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
3c3131a0 | 677 | } |
f8b2ed36 | 678 | else //if ( myBgGradient.type == Aspect_GFM_CORNER1 || myBgGradient.type == Aspect_GFM_CORNER3 ) |
2166f0fa SK |
679 | { |
680 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
681 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
682 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
683 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
684 | } | |
685 | glEnd(); | |
686 | ||
687 | // Restore GL parameters | |
688 | if ( curSM != GL_SMOOTH ) | |
689 | glShadeModel( curSM ); | |
690 | } | |
f8b2ed36 | 691 | // drawing bg image if: |
692 | // - it is defined and | |
693 | // - fill type is not Aspect_FM_NONE | |
694 | if ( myBgTexture.TexId != 0 && myBgTexture.Style != Aspect_FM_NONE ) | |
695 | { | |
696 | GLfloat texX_range = 1.F; // texture <s> coordinate | |
697 | GLfloat texY_range = 1.F; // texture <t> coordinate | |
698 | ||
e276548b | 699 | // Set up for stretching or tiling |
f8b2ed36 | 700 | GLfloat x_offset, y_offset; |
701 | if ( myBgTexture.Style == Aspect_FM_CENTERED ) | |
702 | { | |
703 | x_offset = (GLfloat)myBgTexture.Width / (GLfloat)aViewWidth; | |
704 | y_offset = (GLfloat)myBgTexture.Height / (GLfloat)aViewHeight; | |
705 | } | |
706 | else | |
707 | { | |
708 | x_offset = 1.F; | |
709 | y_offset = 1.F; | |
710 | if ( myBgTexture.Style == Aspect_FM_TILED ) | |
711 | { | |
712 | texX_range = (GLfloat)aViewWidth / (GLfloat)myBgTexture.Width; | |
713 | texY_range = (GLfloat)aViewHeight / (GLfloat)myBgTexture.Height; | |
714 | } | |
715 | } | |
716 | ||
1e743e91 | 717 | // OCCT issue 0023000: Improve the way the gradient and textured |
718 | // background is managed in 3d viewer (note 0020339) | |
719 | // Setting this coefficient to -1.F allows to tile textures relatively | |
720 | // to the top-left corner of the view (value 1.F corresponds to the | |
721 | // initial behaviour - tiling from the bottom-left corner) | |
722 | GLfloat aCoef = -1.F; | |
723 | ||
f8b2ed36 | 724 | glEnable( GL_TEXTURE_2D ); //push GL_ENABLE_BIT |
725 | glBindTexture( GL_TEXTURE_2D, myBgTexture.TexId ); //push GL_TEXTURE_BIT | |
726 | ||
727 | glDisable( GL_BLEND ); //push GL_ENABLE_BIT | |
728 | ||
729 | glColor3fv( AWorkspace->BackgroundColor().rgb ); | |
730 | glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); //push GL_TEXTURE_BIT | |
731 | ||
1e743e91 | 732 | // Note that texture is mapped using GL_REPEAT wrapping mode so integer part |
733 | // is simply ignored, and negative multiplier is here for convenience only | |
734 | // and does not result e.g. in texture mirroring | |
f8b2ed36 | 735 | glBegin( GL_QUADS ); |
1e743e91 | 736 | glTexCoord2f(0.F, 0.F); glVertex2f( -x_offset, -aCoef * y_offset ); |
737 | glTexCoord2f(texX_range, 0.F); glVertex2f( x_offset, -aCoef * y_offset ); | |
738 | glTexCoord2f(texX_range, aCoef * texY_range); glVertex2f( x_offset, aCoef * y_offset ); | |
739 | glTexCoord2f(0.F, aCoef * texY_range); glVertex2f( -x_offset, aCoef * y_offset ); | |
f8b2ed36 | 740 | glEnd(); |
741 | } | |
2166f0fa SK |
742 | |
743 | glPopMatrix(); | |
744 | glMatrixMode( GL_PROJECTION ); | |
745 | glPopMatrix(); | |
746 | glMatrixMode( GL_MODELVIEW ); | |
747 | ||
748 | glPopAttrib(); //GL_ENABLE_BIT | GL_TEXTURE_BIT | |
749 | ||
750 | if ( AWorkspace->UseZBuffer() ) | |
751 | glEnable( GL_DEPTH_TEST ); | |
752 | ||
753 | /* GL_DITHER on/off pour le trace */ | |
754 | if (AWorkspace->Dither()) | |
755 | glEnable (GL_DITHER); | |
756 | else | |
757 | glDisable (GL_DITHER); | |
758 | } | |
e276548b | 759 | } |
760 | ||
761 | /*----------------------------------------------------------------------*/ | |
762 | ||
763 | //call_func_redraw_all_structs_proc | |
764 | void OpenGl_View::Render (const Handle(OpenGl_PrinterContext)& thePrintContext, | |
765 | const Handle(OpenGl_Workspace) &AWorkspace, | |
766 | const Graphic3d_CView& ACView, | |
767 | const Aspect_CLayer2d& ACUnderLayer, | |
768 | const Aspect_CLayer2d& ACOverLayer) | |
769 | { | |
770 | // Store and disable current clipping planes | |
771 | const Handle(OpenGl_Context)& aContext = AWorkspace->GetGlContext(); | |
772 | const Standard_Integer aMaxClipPlanes = aContext->MaxClipPlanes(); | |
773 | const GLenum lastid = GL_CLIP_PLANE0 + aMaxClipPlanes; | |
774 | OPENGL_CLIP_PLANE *oldPlanes = new OPENGL_CLIP_PLANE[aMaxClipPlanes]; | |
775 | OPENGL_CLIP_PLANE *ptrPlane = oldPlanes; | |
776 | GLenum planeid = GL_CLIP_PLANE0; | |
777 | for ( ; planeid < lastid; planeid++, ptrPlane++ ) | |
778 | { | |
779 | glGetClipPlane( planeid, ptrPlane->Equation ); | |
780 | if ( ptrPlane->isEnabled ) | |
781 | { | |
782 | glDisable( planeid ); | |
783 | ptrPlane->isEnabled = GL_TRUE; | |
784 | } | |
785 | else | |
786 | { | |
787 | ptrPlane->isEnabled = GL_FALSE; | |
788 | } | |
789 | } | |
790 | ||
791 | // Set OCCT state uniform variables | |
392ac980 | 792 | const Handle(OpenGl_ShaderManager) aManager = aContext->ShaderManager(); |
793 | if (StateInfo (myCurrLightSourceState, aManager->LightSourceState().Index()) != myLastLightSourceState) | |
e276548b | 794 | { |
392ac980 | 795 | aManager->UpdateLightSourceStateTo (&myLights); |
796 | myLastLightSourceState = StateInfo (myCurrLightSourceState, aManager->LightSourceState().Index()); | |
797 | } | |
798 | if (StateInfo (myCurrViewMappingState, aManager->ProjectionState().Index()) != myLastViewMappingState) | |
799 | { | |
800 | aManager->UpdateProjectionStateTo (myMappingMatrix); | |
801 | myLastViewMappingState = StateInfo (myCurrViewMappingState, aManager->ProjectionState().Index()); | |
802 | } | |
803 | if (StateInfo (myCurrOrientationState, aManager->WorldViewState().Index()) != myLastOrientationState) | |
804 | { | |
805 | aManager->UpdateWorldViewStateTo (myOrientationMatrix); | |
806 | myLastOrientationState = StateInfo (myCurrOrientationState, aManager->WorldViewState().Index()); | |
807 | } | |
808 | if (aManager->ModelWorldState().Index() == 0) | |
809 | { | |
810 | Tmatrix3 aModelWorldState = { { 1.f, 0.f, 0.f, 0.f }, | |
811 | { 0.f, 1.f, 0.f, 0.f }, | |
812 | { 0.f, 0.f, 1.f, 0.f }, | |
813 | { 0.f, 0.f, 0.f, 1.f } }; | |
814 | ||
815 | aManager->UpdateModelWorldStateTo (aModelWorldState); | |
e276548b | 816 | } |
817 | ||
818 | ///////////////////////////////////////////////////////////////////////////// | |
819 | // Step 1: Prepare for redraw | |
820 | ||
821 | // Render background | |
822 | DrawBackground (AWorkspace); | |
2166f0fa SK |
823 | |
824 | // Switch off lighting by default | |
825 | glDisable(GL_LIGHTING); | |
826 | ||
827 | ///////////////////////////////////////////////////////////////////////////// | |
828 | // Step 2: Draw underlayer | |
30f0ad28 | 829 | RedrawLayer2d (thePrintContext, ACView, ACUnderLayer); |
2166f0fa SK |
830 | |
831 | ///////////////////////////////////////////////////////////////////////////// | |
832 | // Step 3: Redraw main plane | |
833 | ||
834 | // Setup face culling | |
835 | GLboolean isCullFace = GL_FALSE; | |
836 | if ( myBackfacing ) | |
837 | { | |
838 | isCullFace = glIsEnabled( GL_CULL_FACE ); | |
839 | if ( myBackfacing < 0 ) | |
840 | { | |
841 | glEnable( GL_CULL_FACE ); | |
842 | glCullFace( GL_BACK ); | |
843 | } | |
844 | else | |
845 | glDisable( GL_CULL_FACE ); | |
846 | } | |
847 | ||
848 | //TsmPushAttri(); /* save previous graphics context */ | |
849 | ||
850 | // if the view is scaled normal vectors are scaled to unit length for correct displaying of shaded objects | |
3c3131a0 | 851 | if(myExtra.scaleFactors[0] != 1.F || |
2166f0fa SK |
852 | myExtra.scaleFactors[1] != 1.F || |
853 | myExtra.scaleFactors[2] != 1.F) | |
854 | glEnable(GL_NORMALIZE); | |
3c3131a0 | 855 | else if(glIsEnabled(GL_NORMALIZE)) |
2166f0fa SK |
856 | glDisable(GL_NORMALIZE); |
857 | ||
858 | // Apply View Projection | |
859 | // This routine activates the Projection matrix for a view. | |
860 | ||
861 | glMatrixMode( GL_PROJECTION ); | |
862 | ||
a174a3c5 | 863 | #ifdef _WIN32 |
2166f0fa | 864 | // add printing scale/tiling transformation |
a174a3c5 | 865 | if (!thePrintContext.IsNull()) |
2166f0fa | 866 | { |
a174a3c5 | 867 | thePrintContext->LoadProjTransformation(); |
2166f0fa SK |
868 | } |
869 | else | |
870 | #endif | |
871 | glLoadIdentity(); | |
872 | ||
873 | glMultMatrixf( (const GLfloat *) myMappingMatrix ); | |
874 | ||
875 | // Add translation necessary for the environnement mapping | |
876 | if (mySurfaceDetail != Visual3d_TOD_NONE) | |
877 | { | |
878 | // OCC280: FitAll work incorrect for perspective view if the SurfaceDetail mode is V3d_TEX_ENVIRONMENT or V3d_TEX_ALL | |
879 | // const GLfloat dep = vptr->vrep.extra.map.fpd * 0.5F; | |
880 | const GLfloat dep = (myExtra.map.fpd + myExtra.map.bpd) * 0.5F; | |
881 | glTranslatef(-dep*myExtra.vpn[0],-dep*myExtra.vpn[1],-dep*myExtra.vpn[2]); | |
882 | } | |
883 | ||
884 | // Apply matrix | |
885 | AWorkspace->SetViewMatrix((const OpenGl_Matrix *)myOrientationMatrix); | |
886 | ||
887 | /* | |
888 | While drawing after a clipplane has been defined and enabled, each vertex | |
889 | is transformed to eye-coordinates, where it is dotted with the transformed | |
890 | clipping plane equation. Eye-coordinate vertexes whose dot product with | |
891 | the transformed clipping plane equation is positive or zero are in, and | |
892 | require no clipping. Those eye-coordinate vertexes whose dot product is | |
893 | negative are clipped. Because clipplane clipping is done in eye- | |
894 | coordinates, changes to the projection matrix have no effect on its | |
895 | operation. | |
896 | ||
897 | A point and a normal are converted to a plane equation in the following manner: | |
898 | ||
899 | point = [Px,Py,Pz] | |
900 | ||
901 | normal = |Nx| | |
902 | |Ny| | |
903 | |Nz| | |
904 | ||
905 | plane equation = |A| | |
906 | |B| | |
907 | |C| | |
908 | |D| | |
909 | A = Nx | |
910 | B = Ny | |
911 | C = Nz | |
912 | D = -[Px,Py,Pz] dot |Nx| | |
913 | |Ny| | |
914 | |Nz| | |
915 | ||
916 | */ | |
917 | ||
2166f0fa SK |
918 | // Apply Fog |
919 | if ( myFog.IsOn ) | |
920 | { | |
921 | const GLfloat ramp = myExtra.map.fpd - myExtra.map.bpd; | |
922 | const GLfloat fog_start = myFog.Front * ramp - myExtra.map.fpd; | |
923 | const GLfloat fog_end = myFog.Back * ramp - myExtra.map.fpd; | |
924 | ||
925 | glFogi(GL_FOG_MODE, GL_LINEAR); | |
926 | glFogf(GL_FOG_START, fog_start); | |
927 | glFogf(GL_FOG_END, fog_end); | |
928 | glFogfv(GL_FOG_COLOR, myFog.Color.rgb); | |
929 | glEnable(GL_FOG); | |
930 | } | |
931 | else | |
932 | glDisable(GL_FOG); | |
933 | ||
934 | // Apply Lights | |
935 | { | |
12381341 | 936 | // setup lights |
4fe9ad57 | 937 | Graphic3d_Vec4 anAmbientColor (THE_DEFAULT_AMBIENT[0], |
938 | THE_DEFAULT_AMBIENT[1], | |
939 | THE_DEFAULT_AMBIENT[2], | |
940 | THE_DEFAULT_AMBIENT[3]); | |
12381341 | 941 | GLenum aLightGlId = GL_LIGHT0; |
942 | for (OpenGl_ListOfLight::Iterator aLightIt (myLights); | |
943 | aLightIt.More(); aLightIt.Next()) | |
2166f0fa | 944 | { |
4fe9ad57 | 945 | bind_light (aLightIt.Value(), aLightGlId, anAmbientColor); |
12381341 | 946 | } |
4fe9ad57 | 947 | |
948 | // apply accumulated ambient color | |
949 | anAmbientColor.a() = 1.0f; | |
950 | glLightModelfv (GL_LIGHT_MODEL_AMBIENT, anAmbientColor.GetData()); | |
951 | ||
12381341 | 952 | if (aLightGlId != GL_LIGHT0) |
953 | { | |
954 | glEnable (GL_LIGHTING); | |
955 | } | |
956 | // switch off unused lights | |
957 | for (; aLightGlId <= GL_LIGHT7; ++aLightGlId) | |
958 | { | |
959 | glDisable (aLightGlId); | |
2166f0fa | 960 | } |
2166f0fa SK |
961 | } |
962 | ||
963 | // Apply InteriorShadingMethod | |
964 | glShadeModel( myIntShadingMethod == TEL_SM_FLAT ? GL_FLAT : GL_SMOOTH ); | |
965 | ||
966 | // Apply clipping planes | |
967 | { | |
b859a34d | 968 | if (myZClip.Back.IsOn || myZClip.Front.IsOn) |
969 | { | |
2166f0fa SK |
970 | const GLdouble ramp = myExtra.map.fpd - myExtra.map.bpd; |
971 | ||
b859a34d | 972 | Handle(Graphic3d_ClipPlane) aPlaneBack; |
973 | Handle(Graphic3d_ClipPlane) aPlaneFront; | |
974 | ||
975 | if (myZClip.Back.IsOn) | |
2166f0fa SK |
976 | { |
977 | const GLdouble back = ramp * myZClip.Back.Limit + myExtra.map.bpd; | |
b859a34d | 978 | const Graphic3d_ClipPlane::Equation aBackEquation (0.0, 0.0, 1.0, -back); |
979 | aPlaneBack = new Graphic3d_ClipPlane (aBackEquation); | |
2166f0fa SK |
980 | } |
981 | ||
b859a34d | 982 | if (myZClip.Front.IsOn) |
2166f0fa SK |
983 | { |
984 | const GLdouble front = ramp * myZClip.Front.Limit + myExtra.map.bpd; | |
b859a34d | 985 | const Graphic3d_ClipPlane::Equation aFrontEquation (0.0, 0.0, -1.0, front); |
986 | aPlaneFront = new Graphic3d_ClipPlane (aFrontEquation); | |
2166f0fa SK |
987 | } |
988 | ||
b859a34d | 989 | // do some "memory allocation"-wise optimization |
990 | if (!aPlaneBack.IsNull() || !aPlaneFront.IsNull()) | |
991 | { | |
992 | Graphic3d_SetOfHClipPlane aSlicingPlanes; | |
993 | if (!aPlaneBack.IsNull()) | |
994 | { | |
995 | aSlicingPlanes.Add (aPlaneBack); | |
996 | } | |
997 | ||
998 | if (!aPlaneFront.IsNull()) | |
999 | { | |
1000 | aSlicingPlanes.Add (aPlaneFront); | |
1001 | } | |
1002 | ||
1003 | // add planes at loaded view matrix state | |
1004 | aContext->ChangeClipping().AddView (aSlicingPlanes, AWorkspace); | |
1005 | } | |
2166f0fa SK |
1006 | } |
1007 | ||
1008 | // Apply user clipping planes | |
b859a34d | 1009 | if (!myClipPlanes.IsEmpty()) |
4269bd1b | 1010 | { |
b859a34d | 1011 | Graphic3d_SetOfHClipPlane aUserPlanes; |
1012 | Graphic3d_SetOfHClipPlane::Iterator aClippingIt (myClipPlanes); | |
1013 | for (; aClippingIt.More(); aClippingIt.Next()) | |
1014 | { | |
1015 | const Handle(Graphic3d_ClipPlane)& aClipPlane = aClippingIt.Value(); | |
1016 | if (aClipPlane->IsOn()) | |
1017 | { | |
1018 | aUserPlanes.Add (aClipPlane); | |
1019 | } | |
1020 | } | |
4269bd1b | 1021 | |
b859a34d | 1022 | if (!aUserPlanes.IsEmpty()) |
1023 | { | |
1024 | // add planes at actual matrix state. | |
1025 | aContext->ChangeClipping().AddWorld (aUserPlanes); | |
1026 | } | |
2166f0fa | 1027 | } |
30f0ad28 | 1028 | |
392ac980 | 1029 | if (!aManager->IsEmpty()) |
30f0ad28 | 1030 | { |
392ac980 | 1031 | aManager->UpdateClippingState(); |
30f0ad28 | 1032 | } |
2166f0fa SK |
1033 | } |
1034 | ||
1035 | // Apply AntiAliasing | |
1036 | { | |
1037 | if (myAntiAliasing) | |
1038 | AWorkspace->NamedStatus |= OPENGL_NS_ANTIALIASING; | |
1039 | else | |
1040 | AWorkspace->NamedStatus &= ~OPENGL_NS_ANTIALIASING; | |
1041 | } | |
1042 | ||
de75ed09 | 1043 | // Clear status bitfields |
1044 | AWorkspace->NamedStatus &= ~(OPENGL_NS_2NDPASSNEED | OPENGL_NS_2NDPASSDO); | |
2166f0fa | 1045 | |
de75ed09 | 1046 | // Added PCT for handling of textures |
1047 | switch (mySurfaceDetail) | |
2166f0fa | 1048 | { |
de75ed09 | 1049 | case Visual3d_TOD_NONE: |
1050 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1051 | AWorkspace->DisableTexture(); | |
1052 | // Render the view | |
1053 | RenderStructs(AWorkspace); | |
1054 | break; | |
1055 | ||
1056 | case Visual3d_TOD_ENVIRONMENT: | |
1057 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1058 | AWorkspace->EnableTexture (myTextureEnv); | |
1059 | // Render the view | |
1060 | RenderStructs(AWorkspace); | |
1061 | AWorkspace->DisableTexture(); | |
1062 | break; | |
1063 | ||
1064 | case Visual3d_TOD_ALL: | |
1065 | // First pass | |
1066 | AWorkspace->NamedStatus &= ~OPENGL_NS_FORBIDSETTEX; | |
1067 | // Render the view | |
1068 | RenderStructs(AWorkspace); | |
1069 | AWorkspace->DisableTexture(); | |
1070 | ||
1071 | // Second pass | |
1072 | if (AWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) | |
2166f0fa | 1073 | { |
de75ed09 | 1074 | AWorkspace->NamedStatus |= OPENGL_NS_2NDPASSDO; |
1075 | AWorkspace->EnableTexture (myTextureEnv); | |
2166f0fa | 1076 | |
de75ed09 | 1077 | /* sauvegarde de quelques parametres OpenGL */ |
1078 | GLint blend_dst, blend_src; | |
1079 | GLint zbuff_f; | |
1080 | GLboolean zbuff_w; | |
1081 | glGetBooleanv(GL_DEPTH_WRITEMASK, &zbuff_w); | |
1082 | glGetIntegerv(GL_DEPTH_FUNC, &zbuff_f); | |
1083 | glGetIntegerv(GL_BLEND_DST, &blend_dst); | |
1084 | glGetIntegerv(GL_BLEND_SRC, &blend_src); | |
1085 | GLboolean zbuff_state = glIsEnabled(GL_DEPTH_TEST); | |
1086 | GLboolean blend_state = glIsEnabled(GL_BLEND); | |
2166f0fa | 1087 | |
de75ed09 | 1088 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
1089 | glEnable(GL_BLEND); | |
2166f0fa | 1090 | |
de75ed09 | 1091 | glDepthFunc(GL_EQUAL); |
1092 | glDepthMask(GL_FALSE); | |
1093 | glEnable(GL_DEPTH_TEST); | |
2166f0fa | 1094 | |
2166f0fa | 1095 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; |
2166f0fa | 1096 | |
2166f0fa SK |
1097 | // Render the view |
1098 | RenderStructs(AWorkspace); | |
bf75be98 | 1099 | AWorkspace->DisableTexture(); |
2166f0fa | 1100 | |
de75ed09 | 1101 | /* restauration des parametres OpenGL */ |
1102 | glBlendFunc(blend_src, blend_dst); | |
1103 | if (!blend_state) glDisable(GL_BLEND); | |
2166f0fa | 1104 | |
de75ed09 | 1105 | glDepthFunc(zbuff_f); |
1106 | glDepthMask(zbuff_w); | |
1107 | if (!zbuff_state) glDisable(GL_DEPTH_FUNC); | |
1108 | } | |
1109 | break; | |
2166f0fa SK |
1110 | } |
1111 | ||
26395493 | 1112 | // Resetting GL parameters according to the default aspects |
1113 | // in order to synchronize GL state with the graphic driver state | |
1114 | // before drawing auxiliary stuff (trihedrons, overlayer) | |
1115 | // and invoking optional callbacks | |
1116 | AWorkspace->ResetAppliedAspect(); | |
2166f0fa | 1117 | |
b859a34d | 1118 | aContext->ChangeClipping().RemoveAll(); |
2166f0fa | 1119 | |
392ac980 | 1120 | if (!aManager->IsEmpty()) |
30f0ad28 | 1121 | { |
392ac980 | 1122 | aManager->ResetMaterialStates(); |
1123 | aManager->RevertClippingState(); | |
1124 | ||
1125 | // We need to disable (unbind) all shaders programs to ensure | |
1126 | // that all objects without specified aspect will be drawn | |
1127 | // correctly (such as background) | |
1128 | OpenGl_ShaderProgram::Unbind (aContext); | |
30f0ad28 | 1129 | } |
1130 | ||
a174a3c5 | 1131 | // display global trihedron |
1132 | if (myTrihedron != NULL) | |
1133 | { | |
1134 | myTrihedron->Render (AWorkspace); | |
1135 | } | |
1136 | if (myGraduatedTrihedron != NULL) | |
1137 | { | |
1138 | myGraduatedTrihedron->Render (AWorkspace); | |
1139 | } | |
2166f0fa | 1140 | |
2166f0fa SK |
1141 | // Restore face culling |
1142 | if ( myBackfacing ) | |
1143 | { | |
1144 | if ( isCullFace ) | |
1145 | { | |
1146 | glEnable ( GL_CULL_FACE ); | |
1147 | glCullFace ( GL_BACK ); | |
1148 | } | |
529afc1a | 1149 | else |
2166f0fa SK |
1150 | glDisable ( GL_CULL_FACE ); |
1151 | } | |
1152 | ||
1153 | ///////////////////////////////////////////////////////////////////////////// | |
1154 | // Step 6: Draw overlayer | |
529afc1a K |
1155 | const int aMode = 0; |
1156 | AWorkspace->DisplayCallback (ACView, (aMode | OCC_PRE_OVERLAY)); | |
2166f0fa | 1157 | |
30f0ad28 | 1158 | RedrawLayer2d (thePrintContext, ACView, ACOverLayer); |
2166f0fa | 1159 | |
529afc1a | 1160 | AWorkspace->DisplayCallback (ACView, aMode); |
2166f0fa SK |
1161 | |
1162 | // Restore clipping planes | |
1163 | for ( ptrPlane = oldPlanes, planeid = GL_CLIP_PLANE0; planeid < lastid; planeid++, ptrPlane++ ) | |
1164 | { | |
1165 | glClipPlane( planeid, ptrPlane->Equation ); | |
1166 | if ( ptrPlane->isEnabled ) | |
1167 | glEnable( planeid ); | |
529afc1a | 1168 | else |
2166f0fa SK |
1169 | glDisable( planeid ); |
1170 | } | |
1171 | delete[] oldPlanes; | |
1172 | } | |
1173 | ||
1174 | /*----------------------------------------------------------------------*/ | |
1175 | ||
1176 | //ExecuteViewDisplay | |
1177 | void OpenGl_View::RenderStructs (const Handle(OpenGl_Workspace) &AWorkspace) | |
1178 | { | |
59f45b7c | 1179 | if ( myZLayers.NbStructures() <= 0 ) |
1180 | return; | |
2166f0fa SK |
1181 | |
1182 | glPushAttrib ( GL_DEPTH_BUFFER_BIT ); | |
1183 | ||
2166f0fa SK |
1184 | //TsmPushAttri(); /* save previous graphics context */ |
1185 | ||
1186 | if ( (AWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) == 0 ) | |
1187 | { | |
1188 | const int antiAliasingMode = AWorkspace->GetDisplay()->AntiAliasingMode(); | |
1189 | ||
1190 | if ( !myAntiAliasing ) | |
1191 | { | |
1192 | glDisable(GL_POINT_SMOOTH); | |
1193 | glDisable(GL_LINE_SMOOTH); | |
1194 | if( antiAliasingMode & 2 ) glDisable(GL_POLYGON_SMOOTH); | |
1195 | glBlendFunc (GL_ONE, GL_ZERO); | |
1196 | glDisable (GL_BLEND); | |
1197 | } | |
1198 | else | |
1199 | { | |
1200 | glEnable(GL_POINT_SMOOTH); | |
1201 | glEnable(GL_LINE_SMOOTH); | |
1202 | if( antiAliasingMode & 2 ) glEnable(GL_POLYGON_SMOOTH); | |
3c3131a0 | 1203 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
2166f0fa SK |
1204 | glEnable (GL_BLEND); |
1205 | } | |
1206 | } | |
1207 | ||
59f45b7c | 1208 | myZLayers.Render (AWorkspace); |
2166f0fa SK |
1209 | |
1210 | //TsmPopAttri(); /* restore previous graphics context; before update lights */ | |
de75ed09 | 1211 | glPopAttrib(); |
2166f0fa SK |
1212 | } |
1213 | ||
1214 | /*----------------------------------------------------------------------*/ | |
1215 | ||
1216 | //call_togl_redraw_layer2d | |
a174a3c5 | 1217 | void OpenGl_View::RedrawLayer2d (const Handle(OpenGl_PrinterContext)& thePrintContext, |
a174a3c5 | 1218 | const Graphic3d_CView& ACView, |
1219 | const Aspect_CLayer2d& ACLayer) | |
2166f0fa SK |
1220 | { |
1221 | if (&ACLayer == NULL | |
1222 | || ACLayer.ptrLayer == NULL | |
1223 | || ACLayer.ptrLayer->listIndex == 0) return; | |
1224 | ||
529afc1a K |
1225 | GLsizei dispWidth = (GLsizei )ACLayer.viewport[0]; |
1226 | GLsizei dispHeight = (GLsizei )ACLayer.viewport[1]; | |
2166f0fa | 1227 | |
2166f0fa SK |
1228 | glMatrixMode( GL_MODELVIEW ); |
1229 | glPushMatrix (); | |
1230 | glLoadIdentity (); | |
1231 | ||
1232 | glMatrixMode (GL_PROJECTION); | |
1233 | glPushMatrix (); | |
1234 | glLoadIdentity (); | |
1235 | ||
1236 | if (!ACLayer.sizeDependent) | |
1237 | glViewport (0, 0, dispWidth, dispHeight); | |
1238 | ||
1239 | float left = ACLayer.ortho[0]; | |
1240 | float right = ACLayer.ortho[1]; | |
1241 | float bottom = ACLayer.ortho[2]; | |
1242 | float top = ACLayer.ortho[3]; | |
1243 | ||
1244 | int attach = ACLayer.attach; | |
1245 | ||
1246 | float ratio; | |
1247 | if (!ACLayer.sizeDependent) | |
1248 | ratio = (float) dispWidth/dispHeight; | |
1249 | else | |
1250 | ratio = ACView.DefWindow.dx/ACView.DefWindow.dy; | |
1251 | ||
1252 | float delta; | |
c9d4eb9d | 1253 | if (ratio >= 1.0) { |
2166f0fa SK |
1254 | delta = (float )((top - bottom)/2.0); |
1255 | switch (attach) { | |
1256 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
1257 | top = bottom + 2*delta/ratio; | |
1258 | break; | |
1259 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
1260 | top = bottom + 2*delta/ratio; | |
1261 | break; | |
1262 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
1263 | bottom = top - 2*delta/ratio; | |
1264 | break; | |
1265 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
1266 | bottom = top - 2*delta/ratio; | |
1267 | break; | |
1268 | } | |
1269 | } | |
c9d4eb9d | 1270 | else { |
2166f0fa SK |
1271 | delta = (float )((right - left)/2.0); |
1272 | switch (attach) { | |
1273 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
1274 | right = left + 2*delta*ratio; | |
1275 | break; | |
1276 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
1277 | left = right - 2*delta*ratio; | |
1278 | break; | |
1279 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
1280 | right = left + 2*delta*ratio; | |
1281 | break; | |
1282 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
1283 | left = right - 2*delta*ratio; | |
1284 | break; | |
1285 | } | |
1286 | } | |
1287 | ||
a174a3c5 | 1288 | #ifdef _WIN32 |
2166f0fa | 1289 | // Check printer context that exists only for print operation |
a174a3c5 | 1290 | if (!thePrintContext.IsNull()) |
2166f0fa SK |
1291 | { |
1292 | // additional transformation matrix could be applied to | |
1293 | // render only those parts of viewport that will be | |
1294 | // passed to a printer as a current "frame" to provide | |
1295 | // tiling; scaling of graphics by matrix helps render a | |
1296 | // part of a view (frame) in same viewport, but with higher | |
1297 | // resolution | |
a174a3c5 | 1298 | thePrintContext->LoadProjTransformation(); |
2166f0fa SK |
1299 | |
1300 | // printing operation also assumes other viewport dimension | |
1301 | // to comply with transformation matrix or graphics scaling | |
1302 | // factors for tiling for layer redraw | |
1303 | GLsizei anViewportX = 0; | |
1304 | GLsizei anViewportY = 0; | |
a174a3c5 | 1305 | thePrintContext->GetLayerViewport (anViewportX, anViewportY); |
2166f0fa SK |
1306 | if (anViewportX != 0 && anViewportY != 0) |
1307 | glViewport (0, 0, anViewportX, anViewportY); | |
1308 | } | |
3c3131a0 | 1309 | #endif |
2166f0fa SK |
1310 | |
1311 | glOrtho (left, right, bottom, top, -1.0, 1.0); | |
1312 | ||
2166f0fa SK |
1313 | glPushAttrib ( |
1314 | GL_LIGHTING_BIT | GL_LINE_BIT | GL_POLYGON_BIT | | |
1315 | GL_DEPTH_BUFFER_BIT | GL_CURRENT_BIT | GL_TEXTURE_BIT ); | |
c9d4eb9d | 1316 | |
2166f0fa | 1317 | glDisable (GL_DEPTH_TEST); |
c9d4eb9d | 1318 | glDisable (GL_TEXTURE_1D); |
1319 | glDisable (GL_TEXTURE_2D); | |
1320 | glDisable (GL_LIGHTING); | |
1321 | ||
1322 | // TODO: Obsolete code, the display list is always empty now, to be removed | |
2166f0fa SK |
1323 | glCallList (ACLayer.ptrLayer->listIndex); |
1324 | ||
1325 | //calling dynamic render of LayerItems | |
1326 | if ( ACLayer.ptrLayer->layerData ) | |
1327 | { | |
30f0ad28 | 1328 | InitLayerProp (ACLayer.ptrLayer->listIndex); |
2166f0fa | 1329 | ((Visual3d_Layer*)ACLayer.ptrLayer->layerData)->RenderLayerItems(); |
30f0ad28 | 1330 | InitLayerProp (0); |
2166f0fa SK |
1331 | } |
1332 | ||
1333 | glPopAttrib (); | |
1334 | ||
2166f0fa SK |
1335 | glMatrixMode (GL_PROJECTION); |
1336 | glPopMatrix (); | |
1337 | ||
1338 | glMatrixMode( GL_MODELVIEW ); | |
1339 | glPopMatrix (); | |
1340 | ||
2166f0fa SK |
1341 | if (!ACLayer.sizeDependent) |
1342 | glViewport (0, 0, (GLsizei) ACView.DefWindow.dx, (GLsizei) ACView.DefWindow.dy); | |
1343 | ||
1344 | glFlush (); | |
2166f0fa SK |
1345 | } |
1346 | ||
1347 | /*----------------------------------------------------------------------*/ | |
1348 | ||
1349 | //call_togl_create_bg_texture | |
3c3131a0 | 1350 | void OpenGl_View::CreateBackgroundTexture (const Standard_CString theFilePath, |
1351 | const Aspect_FillMethod theFillStyle) | |
2166f0fa | 1352 | { |
3c3131a0 | 1353 | if (myBgTexture.TexId != 0) |
2166f0fa | 1354 | { |
3c3131a0 | 1355 | // delete existing texture |
1356 | glDeleteTextures (1, (GLuint* )&(myBgTexture.TexId)); | |
2166f0fa SK |
1357 | myBgTexture.TexId = 0; |
1358 | } | |
1359 | ||
3c3131a0 | 1360 | // load image from file |
1361 | Image_AlienPixMap anImageLoaded; | |
1362 | if (!anImageLoaded.Load (theFilePath)) | |
1363 | { | |
1364 | return; | |
1365 | } | |
1366 | ||
1367 | Image_PixMap anImage; | |
1368 | if (anImageLoaded.RowExtraBytes() == 0 && | |
1369 | (anImageLoaded.Format() == Image_PixMap::ImgRGB | |
1370 | || anImageLoaded.Format() == Image_PixMap::ImgRGB32 | |
1371 | || anImageLoaded.Format() == Image_PixMap::ImgRGBA)) | |
2166f0fa | 1372 | { |
3c3131a0 | 1373 | anImage.InitWrapper (anImageLoaded.Format(), anImageLoaded.ChangeData(), |
1374 | anImageLoaded.SizeX(), anImageLoaded.SizeY(), anImageLoaded.SizeRowBytes()); | |
1375 | } | |
1376 | else | |
1377 | { | |
1378 | // convert image to RGB format | |
1379 | if (!anImage.InitTrash (Image_PixMap::ImgRGB, anImageLoaded.SizeX(), anImageLoaded.SizeY())) | |
1380 | { | |
1381 | return; | |
1382 | } | |
1383 | ||
1384 | anImage.SetTopDown (false); | |
1385 | Image_PixMapData<Image_ColorRGB>& aDataNew = anImage.EditData<Image_ColorRGB>(); | |
1386 | Quantity_Color aSrcColor; | |
1387 | for (Standard_Size aRow = 0; aRow < anImage.SizeY(); ++aRow) | |
1388 | { | |
1389 | for (Standard_Size aCol = 0; aCol < anImage.SizeX(); ++aCol) | |
2166f0fa | 1390 | { |
6a7d83c4 | 1391 | aSrcColor = anImageLoaded.PixelColor ((Standard_Integer )aCol, (Standard_Integer )aRow); |
3c3131a0 | 1392 | Image_ColorRGB& aColor = aDataNew.ChangeValue (aRow, aCol); |
8263fcd3 | 1393 | aColor.r() = Standard_Byte(255.0 * aSrcColor.Red()); |
1394 | aColor.g() = Standard_Byte(255.0 * aSrcColor.Green()); | |
1395 | aColor.b() = Standard_Byte(255.0 * aSrcColor.Blue()); | |
2166f0fa | 1396 | } |
3c3131a0 | 1397 | } |
1398 | anImageLoaded.Clear(); | |
1399 | } | |
2166f0fa | 1400 | |
3c3131a0 | 1401 | // create MipMapped texture |
1402 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); | |
2166f0fa | 1403 | |
3c3131a0 | 1404 | GLuint aTextureId = 0; |
1405 | glGenTextures (1, &aTextureId); | |
1406 | glBindTexture (GL_TEXTURE_2D, aTextureId); | |
2166f0fa | 1407 | |
3c3131a0 | 1408 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); |
1409 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); | |
1410 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | |
1411 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); | |
2166f0fa | 1412 | |
3c3131a0 | 1413 | const GLenum aDataFormat = (anImage.Format() == Image_PixMap::ImgRGB) ? GL_RGB : GL_RGBA; |
1414 | gluBuild2DMipmaps (GL_TEXTURE_2D, 3/*4*/, | |
1415 | GLint(anImage.SizeX()), GLint(anImage.SizeY()), | |
1416 | aDataFormat, GL_UNSIGNED_BYTE, anImage.Data()); | |
2166f0fa | 1417 | |
3c3131a0 | 1418 | myBgTexture.TexId = aTextureId; |
1419 | myBgTexture.Width = (Standard_Integer )anImage.SizeX(); | |
1420 | myBgTexture.Height = (Standard_Integer )anImage.SizeY(); | |
1421 | myBgTexture.Style = theFillStyle; | |
2166f0fa SK |
1422 | } |
1423 | ||
1424 | /*----------------------------------------------------------------------*/ | |
1425 | ||
1426 | //call_togl_set_bg_texture_style | |
1427 | void OpenGl_View::SetBackgroundTextureStyle (const Aspect_FillMethod AFillStyle) | |
1428 | { | |
f8b2ed36 | 1429 | myBgTexture.Style = AFillStyle; |
2166f0fa SK |
1430 | } |
1431 | ||
1432 | /*----------------------------------------------------------------------*/ | |
1433 | ||
1434 | //call_togl_gradient_background | |
1435 | void OpenGl_View::SetBackgroundGradient (const Quantity_Color& AColor1, | |
1436 | const Quantity_Color& AColor2, | |
1437 | const Aspect_GradientFillMethod AType) | |
1438 | { | |
1439 | Standard_Real R,G,B; | |
1440 | AColor1.Values( R, G, B, Quantity_TOC_RGB ); | |
1441 | myBgGradient.color1.rgb[0] = ( Tfloat )R; | |
1442 | myBgGradient.color1.rgb[1] = ( Tfloat )G; | |
1443 | myBgGradient.color1.rgb[2] = ( Tfloat )B; | |
1444 | myBgGradient.color1.rgb[3] = 0.F; | |
1445 | ||
1446 | AColor2.Values( R, G, B, Quantity_TOC_RGB ); | |
1447 | myBgGradient.color2.rgb[0] = ( Tfloat )R; | |
1448 | myBgGradient.color2.rgb[1] = ( Tfloat )G; | |
1449 | myBgGradient.color2.rgb[2] = ( Tfloat )B; | |
1450 | myBgGradient.color2.rgb[3] = 0.F; | |
1451 | ||
1452 | myBgGradient.type = AType; | |
1453 | } | |
1454 | ||
1455 | /*----------------------------------------------------------------------*/ | |
1456 | ||
1457 | //call_togl_set_gradient_type | |
1458 | void OpenGl_View::SetBackgroundGradientType (const Aspect_GradientFillMethod AType) | |
1459 | { | |
f8b2ed36 | 1460 | myBgGradient.type = AType; |
2166f0fa SK |
1461 | } |
1462 | ||
59f45b7c | 1463 | //======================================================================= |
1464 | //function : AddZLayer | |
3c3131a0 | 1465 | //purpose : |
59f45b7c | 1466 | //======================================================================= |
1467 | ||
1468 | void OpenGl_View::AddZLayer (const Standard_Integer theLayerId) | |
1469 | { | |
1470 | myZLayers.AddLayer (theLayerId); | |
1471 | } | |
1472 | ||
1473 | //======================================================================= | |
1474 | //function : RemoveZLayer | |
3c3131a0 | 1475 | //purpose : |
59f45b7c | 1476 | //======================================================================= |
1477 | ||
1478 | void OpenGl_View::RemoveZLayer (const Standard_Integer theLayerId) | |
1479 | { | |
1480 | myZLayers.RemoveLayer (theLayerId); | |
1481 | } | |
1482 | ||
1483 | //======================================================================= | |
1484 | //function : DisplayStructure | |
3c3131a0 | 1485 | //purpose : |
59f45b7c | 1486 | //======================================================================= |
1487 | ||
1488 | void OpenGl_View::DisplayStructure (const OpenGl_Structure *theStructure, | |
1489 | const Standard_Integer thePriority) | |
1490 | { | |
1491 | Standard_Integer aZLayer = theStructure->GetZLayer (); | |
1492 | myZLayers.AddStructure (theStructure, aZLayer, thePriority); | |
1493 | } | |
1494 | ||
1495 | //======================================================================= | |
1496 | //function : EraseStructure | |
3c3131a0 | 1497 | //purpose : |
59f45b7c | 1498 | //======================================================================= |
1499 | ||
1500 | void OpenGl_View::EraseStructure (const OpenGl_Structure *theStructure) | |
1501 | { | |
1502 | Standard_Integer aZLayer = theStructure->GetZLayer (); | |
1503 | myZLayers.RemoveStructure (theStructure, aZLayer); | |
1504 | } | |
1505 | ||
1506 | //======================================================================= | |
1507 | //function : ChangeZLayer | |
1508 | //purpose : | |
1509 | //======================================================================= | |
1510 | ||
1511 | void OpenGl_View::ChangeZLayer (const OpenGl_Structure *theStructure, | |
1512 | const Standard_Integer theNewLayerId) | |
1513 | { | |
1514 | Standard_Integer anOldLayer = theStructure->GetZLayer (); | |
1515 | myZLayers.ChangeLayer (theStructure, anOldLayer, theNewLayerId); | |
1516 | } |