Class TGLMemoryInfo
Unit
Declaration
type TGLMemoryInfo = class(TObject)
Description
OpenGL memory information.
Information comes from either
NVX_gpu_memory_info for NVidia GPUs
ATI_meminfo for AMD GPUs
See the respective extension documentation for more information.
As the two extensions (NVidia and AMD) expose somewhat different information, we do not try to present "uniform" API that hides their differences (because it seems we cannot). Simply be prepared that some sets of fields below will be always zero.
Hierarchy
- TObject
- TGLMemoryInfo
Overview
Fields
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DedicatedVideoMemory: TGLint; |
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TotalAvailableMemory: TGLint; |
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CurrentAvailableVideoMemory: TGLint; |
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VboFreeMemory: TGLint; |
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TextureFreeMemory: TGLint; |
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RenderbufferFreeMemory: TGLint; |
Methods
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constructor Create; |
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procedure Refresh; |
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function LessTextureMemoryThan(const RequiredMemoryKb: Integer): Boolean; |
Description
Fields
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DedicatedVideoMemory: TGLint; |
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Dedicated video memory, total size (in kb) of the GPU memory. Zero if unknown. Available only on (some) NVidia GPUs. | |
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TotalAvailableMemory: TGLint; |
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Total available memory, total size (in Kb) of the memory available for allocations. Zero if unknown. Available only on (some) NVidia GPUs. | |
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CurrentAvailableVideoMemory: TGLint; |
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Currently available dedicated video memory (in kb), currently unused GPU memory. Zero if unknown. Available only on (some) NVidia GPUs. | |
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VboFreeMemory: TGLint; |
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Current memory free for a particular feature, in Kb. Zero if unknown. Available only on (some) AMD GPUs. | |
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TextureFreeMemory: TGLint; |
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Current memory free for a particular feature, in Kb. Zero if unknown. Available only on (some) AMD GPUs. | |
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RenderbufferFreeMemory: TGLint; |
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Current memory free for a particular feature, in Kb. Zero if unknown. Available only on (some) AMD GPUs. | |
Methods
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constructor Create; |
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This item has no description. | |
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procedure Refresh; |
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This item has no description. | |
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function LessTextureMemoryThan(const RequiredMemoryKb: Integer): Boolean; |
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Detect GPUs with low texture memory. Looks at CurrentAvailableVideoMemory or This is useful to detect at runtime when to use e.g. compressed textures (S3TC and such) or downscaled textures (using GLTextureScale or TextureLoadingScale). | |
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