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Viewport: Give a chance to platform and renderer to actually destroy their data. Otherwise the regular ImplXXX_Shutdown + following by DestroyContext() order fails to fullifl this. (#1542)

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This commit is contained in:
omar
2018-03-03 22:53:31 +01:00
parent cab41d954e
commit e026c8d3b7
6 changed files with 22 additions and 7 deletions
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23
imgui.cpp
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@ -3909,6 +3909,20 @@ void ImGui::Initialize(ImGuiContext* context)
g.Initialized = true;
}
void ImGui::DestroyViewportsPlaformData(ImGuiContext* context)
{
if (context->IO.PlatformInterface.DestroyViewport)
for (int i = 0; i < context->Viewports.Size; i++)
context->IO.PlatformInterface.DestroyViewport(context->Viewports[i]);
}
void ImGui::DestroyViewportsRendererData(ImGuiContext* context)
{
if (context->IO.RendererInterface.DestroyViewport)
for (int i = 0; i < context->Viewports.Size; i++)
context->IO.RendererInterface.DestroyViewport(context->Viewports[i]);
}
// This function is merely here to free heap allocations.
void ImGui::Shutdown(ImGuiContext* context)
{
@ -3945,16 +3959,11 @@ void ImGui::Shutdown(ImGuiContext* context)
g.OpenPopupStack.clear();
g.CurrentPopupStack.clear();
g.MouseViewport = g.MouseLastHoveredViewport = NULL;
DestroyViewportsPlaformData(context);
DestroyViewportsRendererData(context);
for (int i = 0; i < g.Viewports.Size; i++)
{
ImGuiViewport* viewport = g.Viewports[i];
if (!(viewport->Flags & ImGuiViewportFlags_MainViewport)) // FIXME-VIEWPORT
{
if (g.IO.RendererInterface.DestroyViewport)
g.IO.RendererInterface.DestroyViewport(viewport);
if (g.IO.PlatformInterface.DestroyViewport)
g.IO.PlatformInterface.DestroyViewport(viewport);
}
viewport->PlatformUserData = viewport->PlatformHandle = viewport->RendererUserData = NULL;
IM_DELETE(viewport);
}