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30 lines
861 B
Markdown
30 lines
861 B
Markdown
# Dear ImGui QNX Screen + OpenGL ES 3 example
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This example uses:
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- `imgui_impl_qnx.cpp` as the QNX Screen platform backend
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- `imgui_impl_opengl3.cpp` as the renderer backend
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- EGL to create an OpenGL ES 3 context and Screen window surface
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`imgui_impl_opengl3.cpp` supports desktop OpenGL and OpenGL ES. On QNX this
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example compiles it with `IMGUI_IMPL_OPENGL_ES3` and uses `#version 300 es`.
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No separate Screen/OpenGL renderer backend is required.
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## Build
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Load the QNX SDP environment, then run:
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```sh
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cd examples/example_qnx_opengl3
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make
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```
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The QNX recursive make files build for the CPUs enabled in your SDP
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configuration and install the program as `example_qnx_opengl3`.
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## Input
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The application polls its `screen_context_t` event queue and forwards every
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non-`SCREEN_EVENT_NONE` event to `ImGui_ImplQNX_ProcessEvent()`.
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Escape exits the example.
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