1 #ifndef COIN_SOGLSHADEROBJECT_H
2 #define COIN_SOGLSHADEROBJECT_H
3 
4 /**************************************************************************\
5  * Copyright (c) Kongsberg Oil & Gas Technologies AS
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions are
10  * met:
11  *
12  * Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in the
17  * documentation and/or other materials provided with the distribution.
18  *
19  * Neither the name of the copyright holder nor the names of its
20  * contributors may be used to endorse or promote products derived from
21  * this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 \**************************************************************************/
35 
36 #ifndef COIN_INTERNAL
37 #error this is a private header file
38 #endif
39 
40 // *************************************************************************
41 
42 #include <Inventor/C/glue/gl.h>
43 #include <Inventor/SbString.h>
44 #include "SoShader.h"
45 
46 class SoGLShaderParameter;
47 class SoShaderParameter;
48 class SoState;
49 
50 // *************************************************************************
51 
52 class SoGLShaderObject
53 {
54 public:
55   SoGLShaderObject(const uint32_t cachecontext);
~SoGLShaderObject()56   virtual ~SoGLShaderObject() { }
57 
58   const cc_glglue * GLContext(void) const;
59   uint32_t getCacheContext(void) const;
60 
61   virtual SbBool isLoaded(void) const = 0;
62   virtual void load(const char * sourceString) = 0;
63   virtual void unload(void) = 0;
64   virtual SoShader::Type shaderType(void) const = 0;
65   virtual SoGLShaderParameter* getNewParameter(void) const = 0;
66   virtual void updateCoinParameter(SoState * state, const SbName & name,
67                                    SoShaderParameter * param, const int val);
68 
69   uint32_t getShaderObjectId(void) const;
70 
71 public:
72 
73   enum ShaderType {
74     VERTEX,
75     FRAGMENT,
76     GEOMETRY
77   };
78 
79   void setShaderType(const ShaderType type);
80   ShaderType getShaderType(void) const;
81 
82   void setIsActive(SbBool flag);
83   SbBool isActive(void) const;
84 
85   void setParametersDirty(SbBool flag);
86   SbBool getParametersDirty(void) const;
87 
88 #if defined(SOURCE_HINT)
89   SbString sourceHint; // either the file name or the first line of source code
90 #endif
91 
92 protected:
93   const cc_glglue * glctx;
94   uint32_t cachecontext;
95 
96 private:
97   ShaderType shadertype;
98   SbBool isActiveFlag ;
99   SbBool paramsdirty;
100   uint32_t id;
101 };
102 
103 #endif /* ! COIN_SOGLSHADEROBJECT_H */
104