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Print missing DLLs on library load failure (#387)

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## Description of change
When the game library fails to load, recursively iterate its import
table to narrow down the missing library.

If the dependency is a commonly missing one, give the user a hint on
where to find it.

## Testing
System with an AMD GPU and LDJ-010 IIDX:
```
[2025/10/01 00:32:41] M:dependencies: bm2dx.dll
[2025/10/01 00:32:41] M:dependencies:   |-- nvEncodeAPI64.dll
[2025/10/01 00:32:41] W:dependencies:   | |-- [!] NVIDIA Graphics Driver
[2025/10/01 00:32:41] W:dependencies:   | |--     For non-NVIDIA GPUs, copy the stub file from the spice2x release .zip.
[2025/10/01 00:32:41] F:libutils: DLL failed to load - this is a common error. Please carefully read ALL of the following steps for a fix:
```

Same system, but with SDVX:
```
[2025/10/01 00:33:53] M:dependencies: soundvoltex.dll
[2025/10/01 00:33:53] M:dependencies:   |-- nvcuda.dll
[2025/10/01 00:33:53] W:dependencies:   | |-- [!] NVIDIA Graphics Driver
[2025/10/01 00:33:53] W:dependencies:   | |--     For non-NVIDIA GPUs, copy the stub file from the spice2x release .zip.
[2025/10/01 00:33:53] M:dependencies:   |-- nvcuvid.dll
[2025/10/01 00:33:53] W:dependencies:   | |-- [!] NVIDIA Graphics Driver
[2025/10/01 00:33:53] W:dependencies:   | |--     For non-NVIDIA GPUs, copy the stub file from the spice2x release .zip.
[2025/10/01 00:33:53] F:libutils: DLL failed to load - this is a common error. Please carefully read ALL of the following steps for a fix:
```

Contrived example of a missing dependency of a dependency:
```
[2025/10/01 00:30:59] M:dependencies: bm2dx.dll
[2025/10/01 00:30:59] M:dependencies:   |-- libaio.dll
[2025/10/01 00:30:59] W:dependencies:   | |-- [!] The library could not be loaded. (126)
[2025/10/01 00:30:59] M:dependencies:   |-- libaio-iob.dll
[2025/10/01 00:30:59] M:dependencies:   | |-- libaio.dll
[2025/10/01 00:30:59] M:dependencies:   |-- libaio-iob2_video.dll
[2025/10/01 00:30:59] M:dependencies:   | |-- libaio.dll
[2025/10/01 00:30:59] M:dependencies:   | |-- libaio-iob.dll
[2025/10/01 00:30:59] F:libutils: DLL failed to load - this is a common error. Please carefully read ALL of the following steps for a fix:
```

Another example of a missing file, but with 32-bit IIDX 24:
```
[2025/10/01 00:42:13] M:dependencies: bm2dx.dll
[2025/10/01 00:42:13] M:dependencies:   |-- libafp-win32.dll
[2025/10/01 00:42:13] W:dependencies:   | |-- [!] The library could not be loaded. (126)
[2025/10/01 00:42:13] M:dependencies:   |-- libafputils-win32.dll
[2025/10/01 00:42:13] M:dependencies:   | |-- libafp-win32.dll
[2025/10/01 00:42:13] F:libutils: DLL failed to load - this is a common error. Please carefully read ALL of the following steps for a fix:
```

---------

Co-authored-by: aixxe <me@aixxe.net>
This commit is contained in:
llm96
2025-10-01 06:12:08 +01:00
committed by GitHub
parent 0fc3aa5818
commit b487cf2bcf
5 changed files with 181 additions and 0 deletions
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src/spice2x/CMakeLists.txt
+1
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@@ -610,6 +610,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
util/lz77.cpp
util/tapeled.cpp
util/execexe.cpp
util/dependencies.cpp
)
source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} PREFIX "Source Files" FILES ${SOURCE_FILES})