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https://git.dev.opencascade.org/repos/occt.git
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737e9a8da4
OpenGl_AspectsTextureSet now appends Sprite texture to the end of texture set. OpenGl_Context::init() - fixed usage of GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS on too old GL context. Default sampler names occSampler0, occActiveSampler and occSamplerBaseColor are now excluded from header with common declarations for build-in GLSL programs. OpenGl_ShaderObject::LoadAndCompile() and OpenGl_ShaderProgram::Link() now includes program Id within error log. OpenGl_ShaderManager now supports mapping texture onto point primitive within built-in programs (texture transformation is ignored).
87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
// Copyright (c) 2019 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _OpenGl_AspectsSprite_Header
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#define _OpenGl_AspectsSprite_Header
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#include <Graphic3d_Aspects.hxx>
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#include <Graphic3d_TextureMap.hxx>
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class OpenGl_Context;
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class OpenGl_PointSprite;
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//! OpenGl resources for custom point sprites.
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class OpenGl_AspectsSprite
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{
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public:
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DEFINE_STANDARD_ALLOC
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public:
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//! Empty constructor.
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OpenGl_AspectsSprite() : myMarkerSize (1.0f), myIsSpriteReady (Standard_False) {}
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Standard_ShortReal MarkerSize() const { return myMarkerSize; }
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//! Return TRUE if resource is up-to-date.
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bool IsReady() const { return myIsSpriteReady; }
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//! Invalidate resource state.
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void Invalidate() { myIsSpriteReady = false; }
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//! Return TRUE if OpenGl point sprite resource defines texture.
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Standard_EXPORT bool HasPointSprite (const Handle(OpenGl_Context)& theCtx,
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const Handle(Graphic3d_Aspects)& theAspects);
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//! Return TRUE if OpenGl point sprite resource defined by obsolete Display List (bitmap).
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Standard_EXPORT bool IsDisplayListSprite (const Handle(OpenGl_Context)& theCtx,
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const Handle(Graphic3d_Aspects)& theAspects);
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//! Return sprite.
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Standard_EXPORT const Handle(OpenGl_PointSprite)& Sprite (const Handle(OpenGl_Context)& theCtx,
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const Handle(Graphic3d_Aspects)& theAspects,
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bool theIsAlphaSprite);
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//! Update texture resource up-to-date state.
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Standard_EXPORT void UpdateRediness (const Handle(Graphic3d_Aspects)& theAspect);
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//! Release texture resource.
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Standard_EXPORT void Release (OpenGl_Context* theCtx);
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private:
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//! Build texture resources.
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Standard_EXPORT void build (const Handle(OpenGl_Context)& theCtx,
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const Handle(Graphic3d_MarkerImage)& theMarkerImage,
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Aspect_TypeOfMarker theType,
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Standard_ShortReal theScale,
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const Graphic3d_Vec4& theColor,
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Standard_ShortReal& theMarkerSize);
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//! Generate resource keys for a sprite.
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static void spriteKeys (const Handle(Graphic3d_MarkerImage)& theMarkerImage,
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Aspect_TypeOfMarker theType,
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Standard_ShortReal theScale,
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const Graphic3d_Vec4& theColor,
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TCollection_AsciiString& theKey,
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TCollection_AsciiString& theKeyA);
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private:
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Handle(OpenGl_PointSprite) mySprite;
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Handle(OpenGl_PointSprite) mySpriteA;
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Standard_ShortReal myMarkerSize;
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Standard_Boolean myIsSpriteReady;
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};
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#endif // _OpenGl_Aspects_Header
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