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Fix Android startup crash in VulkanRenderer - #80

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winnerspiros merged 1 commit into
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fix-android-vulkan-startup-crash-1345616918090383590
Feb 9, 2026
Merged

Fix Android startup crash in VulkanRenderer#80
winnerspiros merged 1 commit into
masterfrom
fix-android-vulkan-startup-crash-1345616918090383590

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@google-labs-jules

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Fixes a critical startup crash on Android devices where VulkanRenderer would use uninitialized memory for swapchain dimensions.

  • osu.Android/Native/vulkan_renderer.cpp:
    • Correctly capture return values from ANativeWindow_getWidth/Height.
    • Add JNIEXPORT and logging to JNI_OnLoad.

PR created automatically by Jules for task 1345616918090383590 started by @winnerspiros

The `VulkanRenderer::chooseSwapExtent` method in `vulkan_renderer.cpp` was calling `ANativeWindow_getWidth` and `ANativeWindow_getHeight` but discarding their return values. This resulted in `width` and `height` variables remaining uninitialized, leading to undefined behavior (likely garbage values) when creating the Vulkan swapchain.

This change captures the return values correctly.

Additionally, `JNI_OnLoad` has been marked with `JNIEXPORT` and a log message added to ensure proper visibility and easier debugging of JVM initialization.
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winnerspiros merged commit 9c7d4d1 into master Feb 9, 2026
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