mirror of
https://git.dev.opencascade.org/repos/occt.git
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565baee64b
Handled __EMSCRIPTEN__ macros to:
- Workaround atomics (__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 is undefined, but GCC atomics are provided).
- Suppress non-standard header <sys/signal.h> warning.
- Return OSD_LinuxREDHAT.
- Avoid inclusion of XLib headers.
- Skip fontconfig library.
- Enable EGL+GLES path (translated by Emscripten into WebGL).
- Skip eglCreatePbufferSurface() not implemented by Emscripten EGL.
Fixed Graphic3d_Vec4.hxx usage within Quantity_ColorRGBA.hxx.
OpenGl_ShaderManager::defaultGlslVersion() now prefers GLSL 300 es when WebGL 2.0 is available,
as there no any OpenGL ES greater than 3.0 emulation so far.
Shaders_Declarations.glsl - added workaround for GLSL compilation on WebGL 1.0
by defining Light properties accessors as macros instead of functions
('[]' : Index expression must be constant).
OpenGl_FrameBuffer::Init() - added workaround for initialization of GL_DEPTH24_STENCIL8
depth-stencil attachment on WebGL 1.0 + GL_WEBGL_depth_texture extension.
OpenGl_Context::Vec4FromQuantityColor() now considers myIsSRgbActive flag
to handle use case, when Immediate Layer is drawn directly into window buffer,
which is not sRGB-ready.
Added new sample - OCCT WebGL viewer.
98 lines
4.2 KiB
C++
Executable File
98 lines
4.2 KiB
C++
Executable File
// Copyright (c) 2013-2014 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 _Aspect_DisplayConnection_H__
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#define _Aspect_DisplayConnection_H__
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#include <Standard_Transient.hxx>
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#include <Aspect_XAtom.hxx>
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#include <TCollection_AsciiString.hxx>
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#include <NCollection_DataMap.hxx>
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#if !defined(_WIN32) && (!defined(__APPLE__) || defined(MACOSX_USE_GLX)) && !defined(__ANDROID__) && !defined(__QNX__) && !defined(__EMSCRIPTEN__)
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#include <InterfaceGraphic.hxx>
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#endif
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//! This class creates and provides connection with X server.
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//! Raises exception if can not connect to X server.
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//! On Windows and Mac OS X (in case when Cocoa used) platforms this class do nothing.
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//! WARRNING: Do not close display connection manualy!
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class Aspect_DisplayConnection : public Standard_Transient
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{
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public:
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//! Default constructor. Creates connection with display name taken from "DISPLAY" environment variable
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Standard_EXPORT Aspect_DisplayConnection();
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//! Destructor. Close opened connection.
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Standard_EXPORT ~Aspect_DisplayConnection();
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#if !defined(_WIN32) && (!defined(__APPLE__) || defined(MACOSX_USE_GLX)) && !defined(__ANDROID__) && !defined(__QNX__) && !defined(__EMSCRIPTEN__)
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//! Constructor. Creates connection with display specified in theDisplayName.
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//! Display name should be in format "hostname:number" or "hostname:number.screen_number", where:
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//! hostname - Specifies the name of the host machine on which the display is physically attached.
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//! number - Specifies the number of the display server on that host machine.
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//! screen_number - Specifies the screen to be used on that server. Optional variable.
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Aspect_DisplayConnection (const TCollection_AsciiString& theDisplayName);
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//! Constructor wrapping existing Display instance.
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//! WARNING! it is a responsibility of application to keep this pointer
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//! valid while Aspect_DisplayConnection is alive and to close Display when it is no more needed.
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Aspect_DisplayConnection (Display* theDisplay);
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//! @return pointer to Display structure that serves as the connection to the X server.
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Display* GetDisplay() { return myDisplay; }
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//! @return TRUE if X Display has been allocated by this class
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Standard_Boolean IsOwnDisplay() const { return myIsOwnDisplay; }
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//! @return identifier(atom) for custom named property associated with windows that use current connection to X server.
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Atom GetAtom (const Aspect_XAtom theAtom) const;
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//! @return display name for this connection.
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const TCollection_AsciiString& GetDisplayName() { return myDisplayName; }
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//! Open connection with display specified in myDisplayName class field
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//! or takes theDisplay parameter when it is not NULL.
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//! WARNING! When external Display is specified, it is a responsibility of application
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//! to keep this pointer valid while Aspect_DisplayConnection is alive
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//! and to close Display when it is no more needed.
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//! @param theDisplay external pointer to allocated Display, or NULL if new connection should be created
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void Init (Display* theDisplay);
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private:
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Display* myDisplay;
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NCollection_DataMap<Aspect_XAtom, Atom> myAtoms;
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TCollection_AsciiString myDisplayName;
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Standard_Boolean myIsOwnDisplay;
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#endif
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private:
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//! To protect the connection from closing copying allowed only through the handles.
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Aspect_DisplayConnection (const Aspect_DisplayConnection& );
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Aspect_DisplayConnection& operator= (const Aspect_DisplayConnection& );
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public:
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DEFINE_STANDARD_RTTIEXT(Aspect_DisplayConnection,Standard_Transient) // Type definition
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};
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DEFINE_STANDARD_HANDLE (Aspect_DisplayConnection, Standard_Transient)
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#endif // _Aspect_DisplayConnection_H__
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