Simulated Reality SDK 7500c78d v1.30.2.51085 2024-04-26T11:23:03Z
Stable
Public Member Functions | List of all members
SR::PredictingDX12Weaver Class Reference

#include <dx12weaver.h>

Inheritance diagram for SR::PredictingDX12Weaver:
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Collaboration diagram for SR::PredictingDX12Weaver:
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Public Member Functions

 PredictingDX12Weaver (SR::SRContext &context, ID3D12Device *device, ID3D12CommandAllocator *commandAllocator, ID3D12CommandQueue *commandQueue, ID3D12Resource *inputFramebuffer, ID3D12Resource *outputFramebuffer)
 Constructs a class to be used for weaving an input image of a certain size. More...
 
 PredictingDX12Weaver (SR::SRContext &context, ID3D12Device *device, ID3D12CommandAllocator *commandAllocator, ID3D12CommandQueue *commandQueue, ID3D12Resource *inputFramebuffer, ID3D12Resource *outputFramebuffer, HWND window)
 Constructs a class to be used for weaving an input image of a certain size. More...
 
 PredictingDX12Weaver (SR::SRContext &context, ID3D12Device *device, ID3D12CommandAllocator *commandAllocator, ID3D12CommandQueue *commandQueue, ID3D12Resource *inputFramebuffer, ID3D12Resource *outputFramebuffer, HWND window, DXGI_FORMAT inputBufferViewFormat)
 Constructs a class to be used for weaving an input image of a certain size This constructor should be used to specify the fully qualified format via inputBufferViewFormat when the inputFramebuffer is a texture created with a typeless format. More...
 
 ~PredictingDX12Weaver ()
 Handles proper destruction of all weaver related classes, buffers and references. More...
 
void setLatency (uint64_t latency)
 Set the latency to match the expected duration of the full rendering pipeline. More...
 
void setLatencyInFrames (uint64_t latencyInFrames)
 Set the latency to match the expected duration of the full rendering pipeline in number of frames. The latency in time is calculated using these number of frames based on the refresh rate of the monitor that the application is running on, this will be dynamically updated when the window changes monitor. For this it requires the weaver to be given a valid window handle of the running application. More...
 
- Public Member Functions inherited from SR::DX12WeaverBase
 DX12WeaverBase ()
 
 ~DX12WeaverBase ()
 
ID3D12Resource * getFrameBuffer ()
 Returns the input buffer of the weaver. When weave(...) is called on this object, this buffer should contain a side-by-side view that will be used as input for the weaver. More...
 
void setInputFrameBuffer (ID3D12Resource *frameBuffer)
 Sets the input buffer of the weaver. When weave(...) is called on this object, this buffer should contain a side-by-side view that will be used as input for the weaver. More...
 
void setInputFrameBuffer (ID3D12Resource *frameBuffer, DXGI_FORMAT bufferViewFormat)
 Sets the input buffer of the weaver. This overload of the function should be used to specify the fully qualified format via bufferViewFormat when the framebuffer is a texture created with a typeless format When weave(...) is called on this object, this buffer should contain a side-by-side view that will be used as input for the weaver. More...
 
void setOutputFrameBuffer (ID3D12Resource *frameBuffer)
 Sets the output buffer of the weaver. After weave(...) has been called on this object, the weaved image will be written to this buffer. More...
 
void setCommandList (ID3D12GraphicsCommandList *commandList)
 Sets the command list for the weaver to use. Must be set before the weave() function can be called. More...
 
void setWindowHandle (HWND handle)
 Sets the window handle of the application window. If the weaver was created using a deprecated constructor, setting window handle has no effect. More...
 
bool canWeave ()
 Used to determine if software weaving is possible on this device. Always returns false if the input or output buffer is not set. More...
 
bool canWeave (unsigned int width, unsigned int height)
 Used to determine if software weaving is possible for certain size and visibility to the currently bound framebuffer. Always returns false if the input or output buffer is not set. More...
 
bool canWeave (unsigned int width, unsigned int height, unsigned int xOffset, unsigned int yOffset)
 Used to determine if software weaving is possible for certain size and visibility to the currently bound framebuffer. Always returns false if the input or output buffer is not set. More...
 
void weave (unsigned int width, unsigned int height)
 Can be called to render a weaved image of inputFramebuffer provided to DX12Weaver::DX12Weaver(...) (Must be D3D12_RESOURCE_STATE_UNORDERED_ACCESS) to the currently bound rendertarget (Must be D3D12_RESOURCE_STATE_RENDER_TARGET) A commandlist must be set before calling this function or weaving will not be executed. More...
 
void weave (unsigned int width, unsigned int height, unsigned int xOffset, unsigned int yOffset)
 Can be called to render a weaved image of inputFramebuffer provided to DX12Weaver::DX12Weaver(...) (Must be D3D12_RESOURCE_STATE_UNORDERED_ACCESS) to the currently bound rendertarget (Must be D3D12_RESOURCE_STATE_RENDER_TARGET) A commandlist must be set before calling this function or weaving will not be executed. More...
 
void weave (ID3D12GraphicsCommandList *commandList, unsigned int width, unsigned int height)
 Can be called to render a weaved image of inputFramebuffer provided to DX12Weaver::DX12Weaver(...) (Must be D3D12_RESOURCE_STATE_UNORDERED_ACCESS) to the currently bound rendertarget (Must be D3D12_RESOURCE_STATE_RENDER_TARGET) More...
 
void weave (ID3D12GraphicsCommandList *commandList, unsigned int width, unsigned int height, unsigned int xOffset, unsigned int yOffset)
 Can be called to render a weaved image of inputFramebuffer provided to DX12Weaver::DX12Weaver(...) (Must be D3D12_RESOURCE_STATE_UNORDERED_ACCESS) to the currently bound rendertarget (Must be D3D12_RESOURCE_STATE_RENDER_TARGET) More...
 

Additional Inherited Members

- Protected Attributes inherited from SR::DX12WeaverBase
std::unique_ptr< Impl > pimpl
 

Constructor & Destructor Documentation

◆ PredictingDX12Weaver() [1/3]

SR::PredictingDX12Weaver::PredictingDX12Weaver ( SR::SRContext context,
ID3D12Device *  device,
ID3D12CommandAllocator *  commandAllocator,
ID3D12CommandQueue *  commandQueue,
ID3D12Resource *  inputFramebuffer,
ID3D12Resource *  outputFramebuffer 
)

Constructs a class to be used for weaving an input image of a certain size.

Deprecated:
Parameters
contextto connect to, needs to be valid for the lifetime of the weaver object.
deviceinterface used to create resources
commandAllocatorused for command list generation during setup
commandQueueused for command list execution during setup
inputFramebufferA pointer to a frame buffer resource containing the side-by-side image to be weaved together. A reference to this resource will be maintained by the object until a different input buffer is set by calling setInputFrameBuffer or until the object is destroyed.
outputFramebufferA pointer to a frame buffer resource where the output of the weaver will be written to (usually the backbuffer). No reference to the output framebuffer is kept by the weaver object.
Exceptions
std::exceptionif inputFramebuffer is a texture resource created with a typeless format

◆ PredictingDX12Weaver() [2/3]

SR::PredictingDX12Weaver::PredictingDX12Weaver ( SR::SRContext context,
ID3D12Device *  device,
ID3D12CommandAllocator *  commandAllocator,
ID3D12CommandQueue *  commandQueue,
ID3D12Resource *  inputFramebuffer,
ID3D12Resource *  outputFramebuffer,
HWND  window 
)

Constructs a class to be used for weaving an input image of a certain size.

Parameters
contextto connect to, needs to be valid for the lifetime of the weaver object.
deviceinterface used to create resources
commandAllocatorused for command list generation during setup
commandQueueused for command list execution during setup
inputFramebufferA pointer to a frame buffer resource containing the side-by-side image to be weaved together. A reference to this resource will be maintained by the object until a different input buffer is set by calling setInputFrameBuffer or until the object is destroyed.
outputFramebufferA pointer to a frame buffer resource where the output of the weaver will be written to (usually the backbuffer). No reference to the output framebuffer is kept by the weaver object.
windowHandle of the application window
Exceptions
std::exceptionif inputFramebuffer is a texture resource created with a typeless format

◆ PredictingDX12Weaver() [3/3]

SR::PredictingDX12Weaver::PredictingDX12Weaver ( SR::SRContext context,
ID3D12Device *  device,
ID3D12CommandAllocator *  commandAllocator,
ID3D12CommandQueue *  commandQueue,
ID3D12Resource *  inputFramebuffer,
ID3D12Resource *  outputFramebuffer,
HWND  window,
DXGI_FORMAT  inputBufferViewFormat 
)

Constructs a class to be used for weaving an input image of a certain size This constructor should be used to specify the fully qualified format via inputBufferViewFormat when the inputFramebuffer is a texture created with a typeless format.

Parameters
contextto connect to, needs to be valid for the lifetime of the weaver object.
deviceinterface used to create resources
commandAllocatorused for command list generation during setup
commandQueueused for command list execution during setup
inputFramebufferA pointer to a frame buffer resource containing the side-by-side image to be weaved together. A reference to this resource will be maintained by the object until a different input buffer is set by calling setInputFrameBuffer or until the object is destroyed.
outputFramebufferA pointer to a frame buffer resource where the output of the weaver will be written to (usually the backbuffer). No reference to the output framebuffer is kept by the weaver object.
windowHandle of the application window
inputBufferViewFormatThe fully qualified shader resource view format for the input frame buffer. This specification is required for textures created with typeless format. It can also be used to cast an already specified fully qualified format to another.
Exceptions
std::exceptionif inputFramebuffer is a texture resource created with a typeless format and inputBufferViewFormat's value is DXGI_FORMAT_UNKNOWN

◆ ~PredictingDX12Weaver()

SR::PredictingDX12Weaver::~PredictingDX12Weaver ( )

Handles proper destruction of all weaver related classes, buffers and references.

Member Function Documentation

◆ setLatency()

void SR::PredictingDX12Weaver::setLatency ( uint64_t  latency)

Set the latency to match the expected duration of the full rendering pipeline.

The eye positions should be predicted to the timepoint at which the frame is visible to the user Internally the prediction is already taking care of all other latency, only the rendering pipeline latency is application dependent A low latency app would have 1 framebuffer latency, so 16666 microseconds (the generated frame will be presented at next v-sync) When using v-sync, the driver adds at least 1 buffer latency, and maybe the windows display manager also adds a buffer latency. Typically, the latency is n * 1000*1000/framerate microseconds

Parameters
latencyThe latency from the moment when weave() is called until presenting the current frame to the user, in microseconds

◆ setLatencyInFrames()

void SR::PredictingDX12Weaver::setLatencyInFrames ( uint64_t  latencyInFrames)

Set the latency to match the expected duration of the full rendering pipeline in number of frames. The latency in time is calculated using these number of frames based on the refresh rate of the monitor that the application is running on, this will be dynamically updated when the window changes monitor. For this it requires the weaver to be given a valid window handle of the running application.

The eye positions should be predicted to the timepoint at which the frame is visible to the user Internally the prediction is already taking care of all other latency, only the rendering pipeline latency is application dependent A low latency app would have 1 framebuffer latency, the generated frame will be presented at next v-sync) When using v-sync, the driver adds at least 1 buffer latency, and maybe the windows display manager also adds a buffer latency.

Parameters
latencyInFramesThe expected number of frames before presenting the current generated frame to the user.

The documentation for this class was generated from the following file: