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Fonts: Fix calling ClearTexData() (clearing CPU side font data) triggering an assert in NewFrame(). (#3487) + Backends: added additional assert to facilitate detecting user understand they haven't initialized a backend.

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ocornut 2021-06-29 17:53:41 +02:00
parent 4cec3a0467
commit 23a15834fa
14 changed files with 29 additions and 1 deletions
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2
backends/imgui_impl_opengl2.cpp
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@ -96,6 +96,8 @@ void ImGui_ImplOpenGL2_Shutdown()
void ImGui_ImplOpenGL2_NewFrame()
{
ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplOpenGL2_Init()?");
if (!bd->FontTexture)
ImGui_ImplOpenGL2_CreateDeviceObjects();
}