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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
commit267c6f2ac71f92999e969232431ba04678e7437e (patch)
tree358c9467650e1d0a1d7227a21dac2e3d08b622b2 /include/vcl/opengl/OpenGLContext.hxx
parentInitial commit. (diff)
downloadlibreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz
libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/vcl/opengl/OpenGLContext.hxx')
-rw-r--r--include/vcl/opengl/OpenGLContext.hxx130
1 files changed, 130 insertions, 0 deletions
diff --git a/include/vcl/opengl/OpenGLContext.hxx b/include/vcl/opengl/OpenGLContext.hxx
new file mode 100644
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+++ b/include/vcl/opengl/OpenGLContext.hxx
@@ -0,0 +1,130 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <vcl/dllapi.h>
+#include <vcl/sysdata.hxx>
+#include <vcl/vclptr.hxx>
+#include <rtl/ref.hxx>
+
+class Point;
+class Size;
+class SystemChildWindow;
+namespace vcl { class Window; }
+
+/// Holds the information of our new child window
+struct VCL_DLLPUBLIC GLWindow
+{
+ unsigned int Width;
+ unsigned int Height;
+ bool bMultiSampleSupported;
+
+ GLWindow()
+ : Width(0)
+ , Height(0)
+ , bMultiSampleSupported(false)
+ {
+ }
+
+ virtual bool Synchronize(bool bOnoff) const;
+
+ virtual ~GLWindow();
+};
+
+class VCL_DLLPUBLIC OpenGLContext
+{
+ friend class OpenGLTests;
+protected:
+ OpenGLContext();
+public:
+ static rtl::Reference<OpenGLContext> Create();
+ virtual ~OpenGLContext();
+
+ // Avoid implicitly defined copy constructors/assignments for the DLLPUBLIC class (they may
+ // require forward-declared classes used internally to be defined in places using OpenGLContext)
+ OpenGLContext(const OpenGLContext&) = delete;
+ OpenGLContext(OpenGLContext&&) = delete;
+ OpenGLContext& operator=(const OpenGLContext&) = delete;
+ OpenGLContext& operator=(OpenGLContext&&) = delete;
+
+ void acquire() { mnRefCount++; }
+ void release() { if ( --mnRefCount == 0 ) delete this; }
+ void dispose();
+
+ void requestLegacyContext();
+
+ bool init(vcl::Window* pParent);
+
+ void reset();
+
+ /// Is this GL context the current context ?
+ virtual bool isCurrent();
+ /// Is any GL context the current context ?
+ virtual bool isAnyCurrent();
+ /// release bound resources from the current context
+ static void clearCurrent();
+ /// release contexts etc. before (potentially) allowing another thread run.
+ static void prepareForYield();
+ /// Is there a current GL context ?
+ static bool hasCurrent();
+
+ /// make this GL context current - so it is implicit in subsequent GL calls
+ virtual void makeCurrent();
+ /// Put this GL context to the end of the context list.
+ void registerAsCurrent();
+ /// reset the GL context so this context is not implicit in subsequent GL calls.
+ virtual void resetCurrent();
+ /// unbind the GL_FRAMEBUFFER to its default state, needed for gtk3
+ virtual void restoreDefaultFramebuffer();
+ virtual void swapBuffers();
+ virtual void sync();
+ void show();
+
+ void setWinPosAndSize(const Point &rPos, const Size& rSize);
+ virtual const GLWindow& getOpenGLWindow() const = 0;
+
+ SystemChildWindow* getChildWindow();
+ const SystemChildWindow* getChildWindow() const;
+
+ bool isInitialized() const
+ {
+ return mbInitialized;
+ }
+
+ virtual SystemWindowData generateWinData(vcl::Window* pParent, bool bRequestLegacyContext);
+
+private:
+ virtual void initWindow();
+ virtual void destroyCurrentContext();
+ virtual void adjustToNewSize();
+
+protected:
+ bool InitGL();
+ static void InitGLDebugging();
+ static void InitChildWindow(SystemChildWindow *pChildWindow);
+ static void BuffersSwapped();
+ virtual GLWindow& getModifiableOpenGLWindow() = 0;
+ virtual bool ImplInit();
+
+ VclPtr<vcl::Window> m_xWindow;
+ VclPtr<vcl::Window> mpWindow; //points to m_pWindow or the parent window, don't delete it
+ VclPtr<SystemChildWindow> m_pChildWindow;
+ bool mbInitialized;
+ int mnRefCount;
+ bool mbRequestLegacyContext;
+
+public:
+
+ // Don't hold references to ourselves:
+ OpenGLContext *mpPrevContext;
+ OpenGLContext *mpNextContext;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */