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1 | // Created by: Kirill GAVRILOV |
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2 | // Copyright (c) 2013-2014 OPEN CASCADE SAS |
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3 | // |
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4 | // This file is part of Open CASCADE Technology software library. |
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5 | // |
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6 | // This library is free software; you can redistribute it and/or modify it under |
7 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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8 | // by the Free Software Foundation, with special exception defined in the file |
9 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
10 | // distribution for complete text of the license and disclaimer of any warranty. |
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11 | // |
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12 | // Alternatively, this file may be used under the terms of Open CASCADE |
13 | // commercial license or contractual agreement. |
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14 | |
15 | #include <OpenGl_PointSprite.hxx> |
16 | |
17 | #include <Graphic3d_TextureParams.hxx> |
18 | #include <OpenGl_Context.hxx> |
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19 | #include <OpenGl_Sampler.hxx> |
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20 | #include <Standard_Assert.hxx> |
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21 | |
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22 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_PointSprite,OpenGl_Texture) |
23 | |
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24 | // ======================================================================= |
25 | // function : OpenGl_PointSprite |
26 | // purpose : |
27 | // ======================================================================= |
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28 | OpenGl_PointSprite::OpenGl_PointSprite (const TCollection_AsciiString& theResourceId) |
29 | : OpenGl_Texture (theResourceId, Handle(Graphic3d_TextureParams)()), |
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30 | myBitmapList (0) |
31 | { |
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32 | //mySampler->Parameters()->SetFilter (Graphic3d_TOTF_NEAREST); |
33 | mySampler->Parameters()->SetModulate (Standard_False); |
34 | mySampler->Parameters()->SetGenMode (Graphic3d_TOTM_SPRITE, |
35 | Graphic3d_Vec4 (0.0f, 0.0f, 0.0f, 0.0f), |
36 | Graphic3d_Vec4 (0.0f, 0.0f, 0.0f, 0.0f)); |
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37 | } |
38 | |
39 | // ======================================================================= |
40 | // function : ~OpenGl_PointSprite |
41 | // purpose : |
42 | // ======================================================================= |
43 | OpenGl_PointSprite::~OpenGl_PointSprite() |
44 | { |
45 | Release (NULL); |
46 | } |
47 | |
48 | // ======================================================================= |
49 | // function : Release |
50 | // purpose : |
51 | // ======================================================================= |
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52 | void OpenGl_PointSprite::Release (OpenGl_Context* theGlCtx) |
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53 | { |
54 | if (myBitmapList != 0) |
55 | { |
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56 | Standard_ASSERT_RETURN (theGlCtx != NULL, |
57 | "OpenGl_PointSprite destroyed without GL context! Possible GPU memory leakage...",); |
58 | |
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59 | if (theGlCtx->IsValid()) |
60 | { |
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61 | theGlCtx->core11ffp->glDeleteLists (myBitmapList, 1); |
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62 | } |
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63 | myBitmapList = 0; |
64 | } |
65 | |
66 | OpenGl_Texture::Release (theGlCtx); |
67 | } |
68 | |
69 | // ======================================================================= |
70 | // function : SetDisplayList |
71 | // purpose : |
72 | // ======================================================================= |
73 | void OpenGl_PointSprite::SetDisplayList (const Handle(OpenGl_Context)& theCtx, |
74 | const GLuint theBitmapList) |
75 | { |
76 | Release (theCtx.operator->()); |
77 | myBitmapList = theBitmapList; |
78 | } |
79 | |
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80 | // ======================================================================= |
81 | // function : DrawBitmap |
82 | // purpose : |
83 | // ======================================================================= |
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84 | void OpenGl_PointSprite::DrawBitmap (const Handle(OpenGl_Context)& theCtx) const |
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85 | { |
86 | if (myBitmapList != 0) |
87 | { |
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88 | theCtx->core11ffp->glCallList (myBitmapList); |
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89 | } |
90 | } |