Headless backend: second BackendApi implementation + platform-neutral contract#5
Merged
Merged
Conversation
Adds imgui.backend.headless: a display-free backend satisfying the same compile-time contract as GlfwOpenGL3 (CI smoke / logic tests / servers). The contract's lifecycle names become platform-neutral (InitPlatform/ TerminatePlatform) — exposed by having a second implementation; the Glfw-flavored spellings remain as aliases on GlfwOpenGL3. backend_swap_test runs the SAME templated application loop against Headless (executed, 3 frames render) and compile-instantiates it for GlfwOpenGL3 — proving backend swap = one import + one alias with the loop untouched (I3).
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Adds
imgui.backend.headless— a second, display-free implementation of theBackendApicontract, making backend-swap (I3) real with two backends today (sdl3 stays planned, unblocked by the same mechanism). Contract lifecycle names become platform-neutral (InitPlatform/TerminatePlatform); Glfw-flavored aliases retained.backend_swap_testexecutes the identical templated loop on Headless and compile-instantiates it for GlfwOpenGL3. Pairs with mcpp'sbackend="<impl>"dep knob (mcpp#109).