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MPLAB® Harmony Graphics Suite
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Structure: laLayer_t
struct laLayer_t { laWidget widget; laScreen* screen; laBool deleting; uint32_t bufferCount; laLayerBuffer buffers[GFX_MAX_BUFFER_COUNT]; laBool alphaEnable; laBool maskEnable; GFX_Color maskColor; laBool vsync; laRectArray prevDamageRects; laRectArray currentDamageRects; laRectArray pendingDamageRects; laRectArray scratchRectList; laRectArray frameRectList; uint32_t frameRectIdx; GFX_Rect clippedDrawingRect; laBool drawingPrev; laLayerFrameState frameState; uint32_t layerDrawCount; uint32_t frameDrawCount; GFX_Rect inputRect; laBool inputRectLocked; laBool allowInputPassThrough; uint32_t deltaTime; };
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Members |
Description |
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laWidget widget; |
base widget |
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laScreen* screen; |
owning screen pointer |
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laBool deleting; |
flag indicating that no changes should be made to the layer because it is in the process of being deleted |
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uint32_t bufferCount; |
number of buffers in the layer |
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laLayerBuffer buffers[GFX_MAX_BUFFER_COUNT]; |
buffer array |
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laBool alphaEnable; |
layer-based alpha blending enable flag |
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laBool maskEnable; |
layer-based color masking enable flag |
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GFX_Color maskColor; |
layer-based masking color value |
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laBool vsync; |
layer vsync flag |
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laRectArray prevDamageRects; |
previous damaged rectangle list |
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laRectArray currentDamageRects; |
queued damaged rectangle list |
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laRectArray pendingDamageRects; |
pending damaged rectangle list these are rectangles added during a frame in progress |
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laRectArray scratchRectList; |
used for rectangle culling phase |
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laRectArray frameRectList; |
this of rects to draw for a frame GFX_Rect currentDrawingRect; // the current damage rectangle |
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GFX_Rect clippedDrawingRect; |
the current damage rectangle clipped to the currently rendering widget |
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laBool drawingPrev; |
indicates if the layer is currently drawing from its previous rectangle array |
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laLayerFrameState frameState; |
the current frame render state of the layer |
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uint32_t layerDrawCount; |
the number of times this layer has drawn |
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uint32_t frameDrawCount; |
the number of widgets that have rendered on this layer this frame |
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GFX_Rect inputRect; |
layer input area |
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laBool inputRectLocked; |
input area matches layer dimensions |
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laBool allowInputPassThrough; |
indicates that input events should be propagated through the layer node to left siblings |
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uint32_t deltaTime; |
stores delta time for updates that happen during rendering |
None.
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MPLAB® Harmony Graphics Suite
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