mirror of
https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git
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50 lines
3.5 KiB
Markdown
50 lines
3.5 KiB
Markdown
# GpuMemDumpVis
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Vulkan/D3D12 Memory Allocator Dump Visualization.
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It is an auxiliary tool that can visualize internal state of [Vulkan Memory Allocator](https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator) and
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[D3D12 Memory Allocator](https://github.com/GPUOpen-LibrariesAndSDKs/D3D12MemoryAllocator) libraries on a picture.
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It is a Python script that must be launched from command line with appropriate parameters.
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## Requirements
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- Python 3 installed
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- [Pillow](http://python-pillow.org/) - Python Imaging Library (Fork) installed
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## Usage
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```
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python GpuMemDumpVis.py -o OUTPUT_FILE INPUT_FILE
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```
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* `INPUT_FILE` - path to source file to be read, containing dump of internal state of the VMA/D3D12MA library in JSON format (encoding: UTF-8/UTF-16), generated using `vmaBuildStatsString()` and `D3D12MA::Allocator::BuildStatsString()` functions.
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* `OUTPUT_FILE` - path to destination file to be written that will contain generated image. Image format is automatically recognized based on file extension. List of supported formats can be found [here](http://pillow.readthedocs.io/en/latest/handbook/image-file-formats.html) and includes: BMP, GIF, JPEG, PNG, TGA.
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You can also use typical options:
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* `-h` - to see help on command line syntax
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* `-v` - to see program version number
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## Example output
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## Legend
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*  Light gray without border - a space in Vulkan device memory block unused by any allocation.
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*  Buffer with usage containing INDIRECT_BUFFER, VERTEX_BUFFER, or INDEX_BUFFER (Vulkan).
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*  Buffer with usage containing STORAGE_BUFFER or STORAGE_TEXEL_BUFFER (Vulkan).
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*  Buffer with usage containing UNIFORM_BUFFER or UNIFORM_TEXEL_BUFFER (Vulkan).
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*  Other buffer.
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*  Image with OPTIMAL tiling and usage containing DEPTH_STENCIL_ATTACHMENT (Vulkan) or a texture with usage containing D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL (D3D12).
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*  Image with OPTIMAL tiling and usage containing INPUT_ATTACHMENT, TRANSIENT_ATTACHMENT or COLOR_ATTACHMENT (Vulkan), or a texture with usage containing D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET or D3D12_RESOURCE_FLAG_ALLOW_UNORDERED_ACCESS (D3D12).
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*  Image with OPTIMAL tiling and usage containing SAMPLED (Vulkan) or a texture with usage not containing D3D12_RESOURCE_FLAG_DENY_SHARED_RESOURCE (D3D12).
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*  Other image with OPTIMAL tiling (Vulkan) or a texture (D3D12).
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*  Image with LINEAR tiling (Vulkan).
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*  Image with tiling unknown to the allocator (Vulkan).
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*  Allocation of unknown type.
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*  Black bar - one or more allocations of any kind too small to be visualized as filled rectangles.
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## Additional notes
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Warning! Current version of the tool shows incorrect result when allocations alias (overlap) in memory, as it only looks at sizes of the allocations, not their offsets.
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