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5E glfw PlatformError when running glfw examples · Issue #751 · zig-gamedev/zig-gamedev · GitHub
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MaxCross2500 opened this issue Apr 20, 2025 · 4 comments
Open

glfw PlatformError when running glfw examples #751

MaxCross2500 opened this issue Apr 20, 2025 · 4 comments

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@MaxCross2500
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MaxCross2500 commented Apr 20, 2025 •
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On nixos (had to use nix-shell with xorg.libX11 so libX11.so.6 would get resolved).
(I used upgrade-zig branch (14758e6).

~/projects/external/zig-gamedev> nix-shell --command 'zig build triangle_wgpu-run'                                                                                                                                                                             20/04/25 11:42:07
anyzig: zig version '0.14.0' pulled from '/home/maxcross/projects/external/zig-gamedev/build.zig.zon'
anyzig: appdata '/home/maxcross/.local/share/anyzig'
anyzig: zig '0.14.0' already exists at '/home/maxcross/.cache/zig/p/N-V-__8AANS1ihIOtIbwStI19vHd9274HDAeXLQjJFgZzdsY'
triangle_wgpu-run
└─ run triangle_wgpu
   └─ install triangle_wgpu
      └─ zig build-exe triangle_wgpu Debug native failure
error: warning(link): unexpected LLD stderr:
ld.lld: warning: /home/maxcross/projects/external/zig-gamedev/.zig-cache/o/4704c49b95416ed5f58f87f2639195a3/libglfw.a: archive member '/home/maxcross/.cache/zig/p/system_sdk-0.3.0-dev-alwUNnYaaAJAtIdE2fg4NQfDqEKs7QCXy_qYukAOBfmF/linux/lib/x86_64-linux-gnu/libX11.so' is neither ET_REL nor LLVM bitcode
ld.lld: warning: /home/maxcross/projects/external/zig-gamedev/.zig-cache/o/0bfab639417153c35d0264b935decc0a/libzdawn.a: archive member '/home/maxcross/.cache/zig/p/N-V-__8AAK7XUQNKNRnv1J6i189jtURJKjp3HTftoyD4Y4CB/libdawn.a' is neither ET_REL nor LLVM bitcode


error: PlatformError
/home/maxcross/.cache/zig/p/zglfw-0.10.0-dev-zgVDNG2cIQAiAC_gLYmbML-NQklPW5B_AELV_fAQc2Jg/src/zglfw.zig:118:5: 0x13be728 in convertError (triangle_wgpu)
    return switch (e) {
    ^
/home/maxcross/.cache/zig/p/zglfw-0.10.0-dev-zgVDNG2cIQAiAC_gLYmbML-NQklPW5B_AELV_fAQc2Jg/src/zglfw.zig:139:5: 0x13ae1fc in maybeError (triangle_wgpu)
    return convertError(glfwGetError(null));
    ^
/home/maxcross/.cache/zig/p/zglfw-0.10.0-dev-zgVDNG2cIQAiAC_gLYmbML-NQklPW5B_AELV_fAQc2Jg/src/zglfw.zig:54:5: 0x13abeff in init (triangle_wgpu)
    try maybeError();
    ^
/home/maxcross/projects/external/zig-gamedev/samples/triangle_wgpu/src/triangle_wgpu.zig:324:5: 0x13ab9a6 in main (triangle_wgpu)
    try zglfw.init();
    ^
triangle_wgpu-run
└─ run triangle_wgpu failure
error: the following command exited with error code 1:
/home/maxcross/projects/external/zig-gamedev/zig-out/bin/triangle_wgpu 
Build Summary: 14/16 steps succeeded; 1 failed
triangle_wgpu-run transitive failure
└─ run triangle_wgpu failure
error: the following build command failed with exit code 1:
/home/maxcross/projects/external/zig-gamedev/.zig-cache/o/fdfa34f30e73618405e001b4e6018c11/build /home/maxcross/.cache/zig/p/N-V-__8AANS1ihIOtIbwStI19vHd9274HDAeXLQjJFgZzdsY/zig /home/maxcross/.cache/zig/p/N-V-__8AANS1ihIOtIbwStI19vHd9274HDAeXLQjJFgZzdsY/lib /home/maxcross/projects/external/zig-gamedev /home/maxcross/projects/external/zig-gamedev/.zig-cache /home/maxcross/.cache/zig --seed 0x112671d6 -Z89c0f83fe7d67ea6 triangle_wgpu-run
@MaxCross2500
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MaxCross2500 commented Apr 20, 2025 •
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Probably unrelated, but disabling x11 when importing zglfw in triangle_wgpu sample gives me linker error.

    const zglfw = b.dependency("zglfw", .{
        .target = options.target,
        .x11 = false,
    });
error: ld.lld: 
error: ld.lld: undefined symbol: XSetErrorHandler
    note: referenced by Surface.cpp
    note:               /home/runner/work/mach-gpu-dawn/mach-gpu-dawn/zig-cache/o/97558059d6bd8e1e7980a87ad6ea612e/Surface.o:(dawn::native::ValidateSurfaceDescriptor(dawn::native::InstanceBase const*, dawn::native::SurfaceDescriptor const*)) in archive /home/maxcross/.cache/zig/p/N-V-__8AAK7XUQNKNRnv1J6i189jtURJKjp3HTftoyD4Y4CB/libdawn.a
    note: referenced by Surface.cpp
    note:               /home/runner/work/mach-gpu-dawn/mach-gpu-dawn/zig-cache/o/97558059d6bd8e1e7980a87ad6ea612e/Surface.o:(dawn::native::ValidateSurfaceDescriptor(dawn::native::InstanceBase const*, dawn::native::SurfaceDescriptor const*)) in archive /home/maxcross/.cache/zig/p/N-V-__8AAK7XUQNKNRnv1J6i189jtURJKjp3HTftoyD4Y4CB/libdawn.a
error: ld.lld: undefined symbol: XGetWindowAttributes
    note: referenced by Surface.cpp
    note:               /home/runner/work/mach-gpu-dawn/mach-gpu-dawn/zig-cache/o/97558059d6bd8e1e7980a87ad6ea612e/Surface.o:(dawn::native::ValidateSurfaceDescriptor(dawn::native::InstanceBase const*, dawn::native::SurfaceDescriptor const*)) in archive /home/maxcross/.cache/zig/p/N-V-__8AAK7XUQNKNRnv1J6i189jtURJKjp3HTftoyD4Y4CB/libdawn.a

(on opengl examples doing this still produces platform error, but now the executable doesn't depend on libX11)

@MaxCross2500
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It's a completely different errors if I switch from wayland session to x11:

Warning: Couldn't load Vulkan. Searched /home/maxcross/projects/external/zig-gamedev/zig-out/bin/libvulkan.so.1, /home/maxcross/projects/external/zig-gamedev/zig-out/bin/libvulkan.so.1, libvulkan.so.1.
    at operator() (/home/runner/work/mach-gpu-dawn/mach-gpu-dawn/libs/dawn/src/dawn/native/vulkan/BackendVk.cpp:265)
    at Initialize (/home/runner/work/mach-gpu-dawn/mach-gpu-dawn/libs/dawn/src/dawn/native/vulkan/BackendVk.cpp:270)
    at Create (/home/runner/work/mach-gpu-dawn/mach-gpu-dawn/libs/dawn/src/dawn/native/vulkan/BackendVk.cpp:232)
    at operator() (/home/runner/work/mach-gpu-dawn/mach-gpu-dawn/libs/dawn/src/dawn/native/vulkan/BackendVk.cpp:479)

info: [zgpu] High-performance device has been selected:
info: [zgpu]   Name: Null backend
info: [zgpu]   Driver: 
info: [zgpu]   Adapter type: cpu
info: [zgpu]   Backend type: nul
Error: Invalid X Window
    at ValidateSurfaceDescriptor (/home/runner/work/mach-gpu-dawn/mach-gpu-dawn/libs/dawn/src/dawn/native/Surface.cpp:161)

error: [zgpu] Validation: [Surface] is invalid.
 - While validating [SwapChainDescriptor "zig-gamedev-gctx-swapchain"]
 - While calling [Device].CreateSwapChain([SwapChainDescriptor "zig-gamedev-gctx-swapchain"]).

And if I add vulkan-headers, vulkan-loader to nix-shell:

Warning: terminator_CreateInstance: Received return code -3 from call to vkCreateInstance in ICD /nix/store/bhp0fdci3f662hiklc074nw13i0xyd1f-mesa-24.2.8-drivers/lib/libvulkan_dzn.so. Skipping this driver.
info: [zgpu] High-performance device has been selected:
info: [zgpu]   Name: NVIDIA GeForce RTX 4080
info: [zgpu]   Driver: NVIDIA: 565.77 565.77.0.0
info: [zgpu]   Adapter type: discrete_gpu
info: [zgpu]   Backend type: vulkan
Error: Invalid X Window
    at ValidateSurfaceDescriptor (/home/runner/work/mach-gpu-dawn/mach-gpu-dawn/libs/dawn/src/dawn/native/Surface.cpp:161)

error: [zgpu] Validation: [Surface] is invalid.
 - While validating [SwapChainDescriptor "zig-gamedev-gctx-swapchain"]
 - While calling [Device].CreateSwapChain([SwapChainDescriptor "zig-gamedev-gctx-swapchain"]).

@MaxCross2500
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Solved by setting up error callback (zglfw.setErrorCallback), and realizing that I need libxkbcommon and vulkan-loader in my nix-shell.
Not obvious at all, but at least now I now some way to troubleshoot this.
Now my cursor doesn't align with imgui buttons, but that a sepparate problem - at least it runs.

@hazeycode
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hazeycode commented May 1, 2025 •
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Thanks for documenting, this might be useful to other nix users. I will leave this open and look to improve the experience.

As for cursor alignment, we have some issues with DPI scaling, please see zig-gamedev/zgui#34

@hazeycode hazeycode mentioned this issue May 13, 2025
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