30f0ad28 |
1 | // Created on: 2013-09-19 |
2 | // Created by: Denis BOGOLEPOV |
3 | // Copyright (c) 2013 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 | |
20 | #ifndef _OpenGl_ShaderProgram_Header |
21 | #define _OpenGl_ShaderProgram_Header |
22 | |
23 | #include <NCollection_DataMap.hxx> |
24 | #include <NCollection_Sequence.hxx> |
25 | #include <TCollection_AsciiString.hxx> |
26 | |
27 | #include <Graphic3d_ShaderObject.hxx> |
28 | #include <Graphic3d_ShaderProgram.hxx> |
29 | |
30 | #include <InterfaceGraphic_tgl_all.hxx> |
31 | |
32 | #include <OpenGl_Vec.hxx> |
33 | #include <OpenGl_Matrix.hxx> |
34 | #include <OpenGl_ShaderObject.hxx> |
35 | #include <Handle_OpenGl_ShaderProgram.hxx> |
36 | |
37 | //! The enumeration of OCCT-specific OpenGL/GLSL variables. |
38 | enum OpenGl_StateVariable |
39 | { |
40 | // OpenGL matrix state |
41 | OpenGl_OCC_MODEL_WORLD_MATRIX, |
42 | OpenGl_OCC_WORLD_VIEW_MATRIX, |
43 | OpenGl_OCC_PROJECTION_MATRIX, |
44 | OpenGl_OCC_MODEL_WORLD_MATRIX_INVERSE, |
45 | OpenGl_OCC_WORLD_VIEW_MATRIX_INVERSE, |
46 | OpenGl_OCC_PROJECTION_MATRIX_INVERSE, |
47 | OpenGl_OCC_MODEL_WORLD_MATRIX_TRANSPOSE, |
48 | OpenGl_OCC_WORLD_VIEW_MATRIX_TRANSPOSE, |
49 | OpenGl_OCC_PROJECTION_MATRIX_TRANSPOSE, |
50 | OpenGl_OCC_MODEL_WORLD_MATRIX_INVERSE_TRANSPOSE, |
51 | OpenGl_OCC_WORLD_VIEW_MATRIX_INVERSE_TRANSPOSE, |
52 | OpenGl_OCC_PROJECTION_MATRIX_INVERSE_TRANSPOSE, |
53 | |
54 | // OpenGL clip planes state |
55 | OpenGl_OCC_CLIP_PLANE_0_EQUATION, |
56 | OpenGl_OCC_CLIP_PLANE_1_EQUATION, |
57 | OpenGl_OCC_CLIP_PLANE_2_EQUATION, |
58 | OpenGl_OCC_CLIP_PLANE_3_EQUATION, |
59 | OpenGl_OCC_CLIP_PLANE_4_EQUATION, |
60 | OpenGl_OCC_CLIP_PLANE_5_EQUATION, |
61 | OpenGl_OCC_CLIP_PLANE_6_EQUATION, |
62 | OpenGl_OCC_CLIP_PLANE_7_EQUATION, |
63 | OpenGl_OCC_CLIP_PLANE_0_SPACE, |
64 | OpenGl_OCC_CLIP_PLANE_1_SPACE, |
65 | OpenGl_OCC_CLIP_PLANE_2_SPACE, |
66 | OpenGl_OCC_CLIP_PLANE_3_SPACE, |
67 | OpenGl_OCC_CLIP_PLANE_4_SPACE, |
68 | OpenGl_OCC_CLIP_PLANE_5_SPACE, |
69 | OpenGl_OCC_CLIP_PLANE_6_SPACE, |
70 | OpenGl_OCC_CLIP_PLANE_7_SPACE, |
71 | |
72 | OpenGl_OCC_LIGHT_SOURCE_COUNT, |
73 | |
74 | // OpenGL light state |
75 | OpenGl_OCC_LIGHT_SOURCE_0_TYPE, |
76 | OpenGl_OCC_LIGHT_SOURCE_1_TYPE, |
77 | OpenGl_OCC_LIGHT_SOURCE_2_TYPE, |
78 | OpenGl_OCC_LIGHT_SOURCE_3_TYPE, |
79 | OpenGl_OCC_LIGHT_SOURCE_4_TYPE, |
80 | OpenGl_OCC_LIGHT_SOURCE_5_TYPE, |
81 | OpenGl_OCC_LIGHT_SOURCE_6_TYPE, |
82 | OpenGl_OCC_LIGHT_SOURCE_7_TYPE, |
83 | OpenGl_OCC_LIGHT_SOURCE_0_HEAD, |
84 | OpenGl_OCC_LIGHT_SOURCE_1_HEAD, |
85 | OpenGl_OCC_LIGHT_SOURCE_2_HEAD, |
86 | OpenGl_OCC_LIGHT_SOURCE_3_HEAD, |
87 | OpenGl_OCC_LIGHT_SOURCE_4_HEAD, |
88 | OpenGl_OCC_LIGHT_SOURCE_5_HEAD, |
89 | OpenGl_OCC_LIGHT_SOURCE_6_HEAD, |
90 | OpenGl_OCC_LIGHT_SOURCE_7_HEAD, |
91 | OpenGl_OCC_LIGHT_SOURCE_0_AMBIENT, |
92 | OpenGl_OCC_LIGHT_SOURCE_1_AMBIENT, |
93 | OpenGl_OCC_LIGHT_SOURCE_2_AMBIENT, |
94 | OpenGl_OCC_LIGHT_SOURCE_3_AMBIENT, |
95 | OpenGl_OCC_LIGHT_SOURCE_4_AMBIENT, |
96 | OpenGl_OCC_LIGHT_SOURCE_5_AMBIENT, |
97 | OpenGl_OCC_LIGHT_SOURCE_6_AMBIENT, |
98 | OpenGl_OCC_LIGHT_SOURCE_7_AMBIENT, |
99 | OpenGl_OCC_LIGHT_SOURCE_0_DIFFUSE, |
100 | OpenGl_OCC_LIGHT_SOURCE_1_DIFFUSE, |
101 | OpenGl_OCC_LIGHT_SOURCE_2_DIFFUSE, |
102 | OpenGl_OCC_LIGHT_SOURCE_3_DIFFUSE, |
103 | OpenGl_OCC_LIGHT_SOURCE_4_DIFFUSE, |
104 | OpenGl_OCC_LIGHT_SOURCE_5_DIFFUSE, |
105 | OpenGl_OCC_LIGHT_SOURCE_6_DIFFUSE, |
106 | OpenGl_OCC_LIGHT_SOURCE_7_DIFFUSE, |
107 | OpenGl_OCC_LIGHT_SOURCE_0_SPECULAR, |
108 | OpenGl_OCC_LIGHT_SOURCE_1_SPECULAR, |
109 | OpenGl_OCC_LIGHT_SOURCE_2_SPECULAR, |
110 | OpenGl_OCC_LIGHT_SOURCE_3_SPECULAR, |
111 | OpenGl_OCC_LIGHT_SOURCE_4_SPECULAR, |
112 | OpenGl_OCC_LIGHT_SOURCE_5_SPECULAR, |
113 | OpenGl_OCC_LIGHT_SOURCE_6_SPECULAR, |
114 | OpenGl_OCC_LIGHT_SOURCE_7_SPECULAR, |
115 | OpenGl_OCC_LIGHT_SOURCE_0_POSITION, |
116 | OpenGl_OCC_LIGHT_SOURCE_1_POSITION, |
117 | OpenGl_OCC_LIGHT_SOURCE_2_POSITION, |
118 | OpenGl_OCC_LIGHT_SOURCE_3_POSITION, |
119 | OpenGl_OCC_LIGHT_SOURCE_4_POSITION, |
120 | OpenGl_OCC_LIGHT_SOURCE_5_POSITION, |
121 | OpenGl_OCC_LIGHT_SOURCE_6_POSITION, |
122 | OpenGl_OCC_LIGHT_SOURCE_7_POSITION, |
123 | OpenGl_OCC_LIGHT_SOURCE_0_SPOT_CUTOFF, |
124 | OpenGl_OCC_LIGHT_SOURCE_1_SPOT_CUTOFF, |
125 | OpenGl_OCC_LIGHT_SOURCE_2_SPOT_CUTOFF, |
126 | OpenGl_OCC_LIGHT_SOURCE_3_SPOT_CUTOFF, |
127 | OpenGl_OCC_LIGHT_SOURCE_4_SPOT_CUTOFF, |
128 | OpenGl_OCC_LIGHT_SOURCE_5_SPOT_CUTOFF, |
129 | OpenGl_OCC_LIGHT_SOURCE_6_SPOT_CUTOFF, |
130 | OpenGl_OCC_LIGHT_SOURCE_7_SPOT_CUTOFF, |
131 | OpenGl_OCC_LIGHT_SOURCE_0_SPOT_EXPONENT, |
132 | OpenGl_OCC_LIGHT_SOURCE_1_SPOT_EXPONENT, |
133 | OpenGl_OCC_LIGHT_SOURCE_2_SPOT_EXPONENT, |
134 | OpenGl_OCC_LIGHT_SOURCE_3_SPOT_EXPONENT, |
135 | OpenGl_OCC_LIGHT_SOURCE_4_SPOT_EXPONENT, |
136 | OpenGl_OCC_LIGHT_SOURCE_5_SPOT_EXPONENT, |
137 | OpenGl_OCC_LIGHT_SOURCE_6_SPOT_EXPONENT, |
138 | OpenGl_OCC_LIGHT_SOURCE_7_SPOT_EXPONENT, |
139 | OpenGl_OCC_LIGHT_SOURCE_0_SPOT_DIRECTION, |
140 | OpenGl_OCC_LIGHT_SOURCE_1_SPOT_DIRECTION, |
141 | OpenGl_OCC_LIGHT_SOURCE_2_SPOT_DIRECTION, |
142 | OpenGl_OCC_LIGHT_SOURCE_3_SPOT_DIRECTION, |
143 | OpenGl_OCC_LIGHT_SOURCE_4_SPOT_DIRECTION, |
144 | OpenGl_OCC_LIGHT_SOURCE_5_SPOT_DIRECTION, |
145 | OpenGl_OCC_LIGHT_SOURCE_6_SPOT_DIRECTION, |
146 | OpenGl_OCC_LIGHT_SOURCE_7_SPOT_DIRECTION, |
147 | OpenGl_OCC_LIGHT_SOURCE_0_CONST_ATTENUATION, |
148 | OpenGl_OCC_LIGHT_SOURCE_1_CONST_ATTENUATION, |
149 | OpenGl_OCC_LIGHT_SOURCE_2_CONST_ATTENUATION, |
150 | OpenGl_OCC_LIGHT_SOURCE_3_CONST_ATTENUATION, |
151 | OpenGl_OCC_LIGHT_SOURCE_4_CONST_ATTENUATION, |
152 | OpenGl_OCC_LIGHT_SOURCE_5_CONST_ATTENUATION, |
153 | OpenGl_OCC_LIGHT_SOURCE_6_CONST_ATTENUATION, |
154 | OpenGl_OCC_LIGHT_SOURCE_7_CONST_ATTENUATION, |
155 | OpenGl_OCC_LIGHT_SOURCE_0_LINEAR_ATTENUATION, |
156 | OpenGl_OCC_LIGHT_SOURCE_1_LINEAR_ATTENUATION, |
157 | OpenGl_OCC_LIGHT_SOURCE_2_LINEAR_ATTENUATION, |
158 | OpenGl_OCC_LIGHT_SOURCE_3_LINEAR_ATTENUATION, |
159 | OpenGl_OCC_LIGHT_SOURCE_4_LINEAR_ATTENUATION, |
160 | OpenGl_OCC_LIGHT_SOURCE_5_LINEAR_ATTENUATION, |
161 | OpenGl_OCC_LIGHT_SOURCE_6_LINEAR_ATTENUATION, |
162 | OpenGl_OCC_LIGHT_SOURCE_7_LINEAR_ATTENUATION, |
163 | |
164 | // Material state |
165 | OpenGl_OCCT_ACTIVE_SAMPLER, |
166 | OpenGl_OCCT_TEXTURE_ENABLE, |
167 | OpenGl_OCCT_DISTINGUISH_MODE, |
168 | OpenGl_OCCT_FRONT_MATERIAL_AMBIENT, |
169 | OpenGl_OCCT_BACK_MATERIAL_AMBIENT, |
170 | OpenGl_OCCT_FRONT_MATERIAL_DIFFUSE, |
171 | OpenGl_OCCT_BACK_MATERIAL_DIFFUSE, |
172 | OpenGl_OCCT_FRONT_MATERIAL_SPECULAR, |
173 | OpenGl_OCCT_BACK_MATERIAL_SPECULAR, |
174 | OpenGl_OCCT_FRONT_MATERIAL_EMISSION, |
175 | OpenGl_OCCT_BACK_MATERIAL_EMISSION, |
176 | OpenGl_OCCT_FRONT_MATERIAL_SHININESS, |
177 | OpenGl_OCCT_BACK_MATERIAL_SHININESS, |
178 | OpenGl_OCCT_FRONT_MATERIAL_TRANSPARENCY, |
179 | OpenGl_OCCT_BACK_MATERIAL_TRANSPARENCY, |
180 | |
181 | // DON'T MODIFY THIS ITEM (insert new items before it) |
182 | OpenGl_OCCT_NUMBER_OF_STATE_VARIABLES |
183 | }; |
184 | |
185 | class OpenGl_ShaderProgram; |
186 | |
187 | //! Interface for generic setter of user-defined uniform variables. |
188 | struct OpenGl_SetterInterface |
189 | { |
190 | //! Sets user-defined uniform variable to specified program. |
191 | virtual void Set (const Handle(OpenGl_Context)& theCtx, |
192 | const Handle(Graphic3d_ShaderVariable)& theVariable, |
193 | OpenGl_ShaderProgram* theProgram) = 0; |
194 | |
195 | //! Destructor |
196 | virtual ~OpenGl_SetterInterface() {} |
197 | }; |
198 | |
199 | //! List of OpenGL shader objects. |
200 | typedef NCollection_Sequence<Handle(OpenGl_ShaderObject)> OpenGl_ShaderList; |
201 | |
202 | //! List of shader variable setters. |
203 | typedef NCollection_DataMap<size_t, OpenGl_SetterInterface*> OpenGl_SetterList; |
204 | |
205 | //! Support tool for setting user-defined uniform variables. |
206 | class OpenGl_VariableSetterSelector |
207 | { |
208 | public: |
209 | |
210 | //! Creates new setter selector. |
211 | OpenGl_VariableSetterSelector(); |
212 | |
213 | //! Releases memory resources of setter selector. |
214 | ~OpenGl_VariableSetterSelector(); |
215 | |
216 | //! Sets user-defined uniform variable to specified program. |
217 | void Set (const Handle(OpenGl_Context)& theCtx, |
218 | const Handle(Graphic3d_ShaderVariable)& theVariable, |
219 | OpenGl_ShaderProgram* theProgram) const; |
220 | |
221 | private: |
222 | |
223 | //! List of variable setters. |
224 | OpenGl_SetterList mySetterList; |
225 | }; |
226 | |
227 | //! Defines types of uniform state variables. |
228 | enum OpenGl_UniformStateType |
229 | { |
230 | OpenGl_LIGHT_SOURCES_STATE, |
231 | OpenGl_CLIP_PLANES_STATE, |
232 | OpenGl_MODEL_WORLD_STATE, |
233 | OpenGl_WORLD_VIEW_STATE, |
234 | OpenGl_PROJECTION_STATE, |
235 | OpenGl_MATERIALS_STATE |
236 | }; |
237 | |
238 | //! Total number of state types. |
239 | const int MaxStateTypes = 6; |
240 | |
241 | //! Wrapper for OpenGL program object. |
242 | class OpenGl_ShaderProgram : public OpenGl_Resource |
243 | { |
244 | |
245 | public: |
246 | |
247 | //! Non-valid shader name. |
248 | static const GLuint NO_PROGRAM = 0; |
249 | |
250 | //! Invalid location of uniform/attribute variable. |
251 | static const GLint INVALID_LOCATION = -1; |
252 | |
253 | //! List of pre-defined OCCT state uniform variables. |
254 | static Standard_CString PredefinedKeywords[OpenGl_OCCT_NUMBER_OF_STATE_VARIABLES]; |
255 | |
256 | protected: |
257 | |
258 | //! Creates uninitialized shader program. |
259 | Standard_EXPORT OpenGl_ShaderProgram (const Handle(Graphic3d_ShaderProgram)& theProxy = NULL); |
260 | |
261 | static OpenGl_VariableSetterSelector mySetterSelector; |
262 | |
263 | public: |
264 | |
265 | //! Releases resources of shader program. |
266 | Standard_EXPORT virtual ~OpenGl_ShaderProgram(); |
267 | |
268 | //! Creates new empty shader program of specified type. |
269 | Standard_EXPORT Standard_Boolean Create (const Handle(OpenGl_Context)& theCtx); |
270 | |
271 | //! Destroys shader program. |
272 | Standard_EXPORT virtual void Release (const OpenGl_Context* theCtx); |
273 | |
274 | //! Attaches shader object to the program object. |
275 | Standard_EXPORT Standard_Boolean AttachShader (const Handle(OpenGl_Context)& theCtx, |
276 | const Handle(OpenGl_ShaderObject)& theShader); |
277 | |
278 | //! Detaches shader object to the program object. |
279 | Standard_EXPORT Standard_Boolean DetachShader (const Handle(OpenGl_Context)& theCtx, |
280 | const Handle(OpenGl_ShaderObject)& theShader); |
281 | |
282 | //! Initializes program object with the list of shader objects. |
283 | Standard_EXPORT Standard_Boolean Initialize (const Handle(OpenGl_Context)& theCtx, |
284 | const Graphic3d_ShaderObjectList& theShaders); |
285 | |
286 | //! Links the program object. |
287 | Standard_EXPORT Standard_Boolean Link (const Handle(OpenGl_Context)& theCtx); |
288 | |
289 | //! Fetches information log of the last link operation. |
290 | Standard_EXPORT Standard_Boolean FetchInfoLog (const Handle(OpenGl_Context)& theCtx, |
291 | TCollection_AsciiString& theLog); |
292 | |
293 | //! Fetches uniform variables from proxy shader program. |
294 | Standard_EXPORT Standard_Boolean ApplyVariables (const Handle(OpenGl_Context)& theCtx); |
295 | |
296 | //! Sets the program object as part of current rendering state. |
297 | Standard_EXPORT void Bind (const Handle(OpenGl_Context)& theCtx) const; |
298 | |
299 | //! Binds the program object and applies variables from proxy shader program. |
300 | Standard_EXPORT Standard_Boolean BindWithVariables (const Handle(OpenGl_Context)& theCtx); |
301 | |
302 | //! Reverts to fixed-function graphics pipeline (FFP). |
303 | Standard_EXPORT static void Unbind (const Handle(OpenGl_Context)& theCtx); |
304 | |
305 | private: |
306 | |
307 | //! Returns index of last modification of variables of specified state type. |
308 | Standard_EXPORT Standard_Size ActiveState (const OpenGl_UniformStateType theType) const; |
309 | |
310 | //! Updates index of last modification of variables of specified state type. |
311 | Standard_EXPORT void UpdateState (const OpenGl_UniformStateType theType, |
312 | const Standard_Size theIndex); |
313 | |
314 | public: |
315 | |
316 | //! Returns location of the specific uniform variable. |
317 | Standard_EXPORT GLint GetUniformLocation (const Handle(OpenGl_Context)& theCtx, |
318 | const GLchar* theName) const; |
319 | |
320 | //! Returns index of the generic vertex attribute by variable name. |
321 | Standard_EXPORT GLint GetAttributeLocation (const Handle(OpenGl_Context)& theCtx, |
322 | const GLchar* theName) const; |
323 | |
324 | //! Returns location of the OCCT state uniform variable. |
325 | Standard_EXPORT GLint GetStateLocation (const GLuint theVariable) const; |
326 | |
327 | public: |
328 | |
329 | //! Returns the value of the integer uniform variable. |
330 | Standard_EXPORT Standard_Boolean GetUniform (const Handle(OpenGl_Context)& theCtx, |
331 | const GLchar* theName, |
332 | OpenGl_Vec4i& theValue) const; |
333 | |
334 | Standard_EXPORT Standard_Boolean GetUniform (const Handle(OpenGl_Context)& theCtx, |
335 | GLint theLocation, |
336 | OpenGl_Vec4i& theValue) const; |
337 | |
338 | //! Returns the value of the float uniform variable. |
339 | Standard_EXPORT Standard_Boolean GetUniform (const Handle(OpenGl_Context)& theCtx, |
340 | const GLchar* theName, |
341 | OpenGl_Vec4& theValue) const; |
342 | |
343 | //! Returns the value of the float uniform variable. |
344 | Standard_EXPORT Standard_Boolean GetUniform (const Handle(OpenGl_Context)& theCtx, |
345 | GLint theLocation, |
346 | OpenGl_Vec4& theValue) const; |
347 | |
348 | public: |
349 | |
350 | //! Returns the integer vertex attribute. |
351 | Standard_EXPORT Standard_Boolean GetAttribute (const Handle(OpenGl_Context)& theCtx, |
352 | const GLchar* theName, |
353 | OpenGl_Vec4i& theValue) const; |
354 | |
355 | //! Returns the integer vertex attribute. |
356 | Standard_EXPORT Standard_Boolean GetAttribute (const Handle(OpenGl_Context)& theCtx, |
357 | GLint theIndex, |
358 | OpenGl_Vec4i& theValue) const; |
359 | |
360 | //! Returns the float vertex attribute. |
361 | Standard_EXPORT Standard_Boolean GetAttribute (const Handle(OpenGl_Context)& theCtx, |
362 | const GLchar* theName, |
363 | OpenGl_Vec4& theValue) const; |
364 | |
365 | //! Returns the float vertex attribute. |
366 | Standard_EXPORT Standard_Boolean GetAttribute (const Handle(OpenGl_Context)& theCtx, |
367 | GLint theIndex, |
368 | OpenGl_Vec4& theValue) const; |
369 | |
370 | public: |
371 | |
372 | //! Specifies the value of the integer uniform variable. |
373 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
374 | const GLchar* theName, |
375 | GLint theValue); |
376 | |
377 | //! Specifies the value of the integer uniform variable. |
378 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
379 | GLint theLocation, |
380 | GLint theValue); |
381 | |
382 | //! Specifies the value of the integer uniform 2D vector. |
383 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
384 | const GLchar* theName, |
385 | const OpenGl_Vec2i& theValue); |
386 | |
387 | //! Specifies the value of the integer uniform 2D vector. |
388 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
389 | GLint theLocation, |
390 | const OpenGl_Vec2i& theValue); |
391 | |
392 | //! Specifies the value of the integer uniform 3D vector. |
393 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
394 | const GLchar* theName, |
395 | const OpenGl_Vec3i& theValue); |
396 | |
397 | //! Specifies the value of the integer uniform 3D vector. |
398 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
399 | GLint theLocation, |
400 | const OpenGl_Vec3i& theValue); |
401 | |
402 | //! Specifies the value of the integer uniform 4D vector. |
403 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
404 | const GLchar* theName, |
405 | const OpenGl_Vec4i& theValue); |
406 | |
407 | //! Specifies the value of the integer uniform 4D vector. |
408 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
409 | GLint theLocation, |
410 | const OpenGl_Vec4i& theValue); |
411 | |
412 | public: |
413 | |
414 | //! Specifies the value of the float uniform variable. |
415 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
416 | const GLchar* theName, |
417 | GLfloat theValue); |
418 | |
419 | //! Specifies the value of the float uniform variable. |
420 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
421 | GLint theLocation, |
422 | GLfloat theValue); |
423 | |
424 | //! Specifies the value of the float uniform 2D vector. |
425 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
426 | const GLchar* theName, |
427 | const OpenGl_Vec2& theValue); |
428 | |
429 | //! Specifies the value of the float uniform 2D vector. |
430 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
431 | GLint theLocation, |
432 | const OpenGl_Vec2& theValue); |
433 | |
434 | //! Specifies the value of the float uniform 3D vector. |
435 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
436 | const GLchar* theName, |
437 | const OpenGl_Vec3& theValue); |
438 | |
439 | //! Specifies the value of the float uniform 3D vector. |
440 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
441 | GLint theLocation, |
442 | const OpenGl_Vec3& theValue); |
443 | |
444 | //! Specifies the value of the float uniform 4D vector. |
445 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
446 | const GLchar* theName, |
447 | const OpenGl_Vec4& theValue); |
448 | |
449 | //! Specifies the value of the float uniform 4D vector. |
450 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
451 | GLint theLocation, |
452 | const OpenGl_Vec4& theValue); |
453 | |
454 | public: |
455 | |
456 | //! Specifies the value of the float uniform 4x4 matrix. |
457 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
458 | const GLchar* theName, |
459 | const OpenGl_Matrix& theValue, |
460 | GLboolean theTranspose = GL_FALSE); |
461 | |
462 | //! Specifies the value of the float uniform 4x4 matrix. |
463 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
464 | GLint theLocation, |
465 | const OpenGl_Matrix& theValue, |
466 | GLboolean theTranspose = GL_FALSE); |
467 | |
468 | //! Specifies the value of the float uniform 4x4 matrix. |
469 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
470 | const GLchar* theName, |
471 | const Tmatrix3& theValue, |
472 | GLboolean theTranspose = GL_FALSE); |
473 | |
474 | //! Specifies the value of the float uniform 4x4 matrix. |
475 | Standard_EXPORT Standard_Boolean SetUniform (const Handle(OpenGl_Context)& theCtx, |
476 | GLint theLocation, |
477 | const Tmatrix3& theValue, |
478 | GLboolean theTranspose = GL_FALSE); |
479 | |
480 | public: |
481 | |
482 | //! Specifies the value of the sampler uniform variable. |
483 | Standard_EXPORT Standard_Boolean SetSampler (const Handle(OpenGl_Context)& theCtx, |
484 | const GLchar* theName, |
485 | const GLenum theTextureUnit); |
486 | |
487 | //! Specifies the value of the sampler uniform variable. |
488 | Standard_EXPORT Standard_Boolean SetSampler (const Handle(OpenGl_Context)& theCtx, |
489 | GLint theLocation, |
490 | const GLenum theTextureUnit); |
491 | |
492 | protected: |
493 | |
392ac980 |
494 | //! Increments counter of users. |
495 | //! Used by OpenGl_ShaderManager. |
496 | void Share() |
497 | { |
498 | ++myShareCount; |
499 | } |
500 | |
501 | //! Decrements counter of users. |
502 | //! Used by OpenGl_ShaderManager. |
503 | //! @return true when there are no more users of this program has been left |
504 | bool UnShare() |
505 | { |
506 | return --myShareCount == 0; |
507 | } |
508 | |
509 | protected: |
510 | |
511 | GLuint myProgramID; //!< Handle of OpenGL shader program |
512 | OpenGl_ShaderList myShaderObjects; //!< List of attached shader objects |
513 | Handle(Graphic3d_ShaderProgram) myProxy; //!< Proxy shader program (from application layer) |
514 | Standard_Integer myShareCount; //!< program users count, initialized with 1 (already shared by one user) |
30f0ad28 |
515 | |
516 | protected: |
517 | |
518 | //! Defines last modification for variables of each state type. |
519 | Standard_Size myCurrentState[MaxStateTypes]; |
520 | |
521 | //! Stores locations of OCCT state uniform variables. |
522 | GLint myStateLocations[OpenGl_OCCT_NUMBER_OF_STATE_VARIABLES]; |
523 | |
524 | public: |
525 | |
526 | DEFINE_STANDARD_RTTI (OpenGl_ShaderProgram) |
527 | friend class OpenGl_ShaderManager; |
528 | |
529 | }; |
530 | |
531 | template<class T> |
532 | struct OpenGl_VariableSetter : public OpenGl_SetterInterface |
533 | { |
534 | virtual void Set (const Handle(OpenGl_Context)& theCtx, |
535 | const Handle(Graphic3d_ShaderVariable)& theVariable, |
536 | OpenGl_ShaderProgram* theProgram) |
537 | { |
538 | theProgram->SetUniform (theCtx, |
539 | theVariable->Name().ToCString(), |
540 | theVariable->Value()->As<T>()); |
541 | } |
542 | }; |
543 | |
544 | namespace OpenGl_HashMapInitializer |
545 | { |
546 | template<class K, class V> |
547 | struct MapListOfType |
548 | { |
549 | NCollection_DataMap<K, V> myDictionary; |
550 | |
551 | MapListOfType (K theKey, V theValue) |
552 | { |
553 | myDictionary.Bind (theKey, theValue); |
554 | } |
555 | |
556 | MapListOfType& operator() (K theKey, V theValue) |
557 | { |
558 | myDictionary.Bind (theKey, theValue); |
559 | return *this; |
560 | } |
561 | |
562 | operator const NCollection_DataMap<K, V>& () const |
563 | { |
564 | return myDictionary; |
565 | } |
566 | }; |
567 | |
568 | template<class K, class V> |
569 | MapListOfType<K, V> CreateListOf (K theKey, V theValue) |
570 | { |
571 | return MapListOfType<K, V> (theKey, theValue); |
572 | } |
573 | } |
574 | |
575 | #endif // _OpenGl_ShaderProgram_Header |