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Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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QGles2CommandBuffer Struct Reference

#include <qrhigles2_p.h>

Inheritance diagram for QGles2CommandBuffer:
Collaboration diagram for QGles2CommandBuffer:

Classes

struct  Command
struct  ComputePassState
struct  GraphicsPassState
struct  TextureUnitState

Public Types

enum  PassType { NoPass , RenderPass , ComputePass }
Public Types inherited from QRhiCommandBuffer
enum  IndexFormat { IndexUInt16 , IndexUInt32 }
 Specifies the index data type. More...
enum  BeginPassFlag { ExternalContent = 0x01 , DoNotTrackResourcesForCompute = 0x02 }
 Flag values for QRhi::beginPass() More...
using DynamicOffset = std::pair<int, quint32>
 Synonym for std::pair<int, quint32>.
using VertexInput = std::pair<QRhiBuffer *, quint32>
 Synonym for std::pair<QRhiBuffer *, quint32>.
Public Types inherited from QRhiResource
enum  Type {
  Buffer , Texture , Sampler , RenderBuffer ,
  RenderPassDescriptor , SwapChainRenderTarget , TextureRenderTarget , ShaderResourceBindings ,
  GraphicsPipeline , SwapChain , ComputePipeline , CommandBuffer ,
  ShadingRateMap
}
 Specifies type of the resource. More...

Public Member Functions

 QGles2CommandBuffer (QRhiImplementation *rhi)
 ~QGles2CommandBuffer ()
void destroy () override
 Releases (or requests deferred releasing of) the underlying native graphics resources.
const voidretainData (const QByteArray &data)
const ucharretainBufferData (const QRhiBufferData &data)
const voidretainImage (const QImage &image)
void resetCommands ()
void resetState ()
void resetCachedState ()
Public Member Functions inherited from QRhiCommandBuffer
QRhiResource::Type resourceType () const override
void resourceUpdate (QRhiResourceUpdateBatch *resourceUpdates)
 Sometimes committing resource updates is necessary or just more convenient without starting a render pass.
void beginPass (QRhiRenderTarget *rt, const QColor &colorClearValue, const QRhiDepthStencilClearValue &depthStencilClearValue, QRhiResourceUpdateBatch *resourceUpdates=nullptr, BeginPassFlags flags={})
 Records starting a new render pass targeting the render target rt.
void endPass (QRhiResourceUpdateBatch *resourceUpdates=nullptr)
 Records ending the current render pass.
void setGraphicsPipeline (QRhiGraphicsPipeline *ps)
 Records setting a new graphics pipeline ps.
void setShaderResources (QRhiShaderResourceBindings *srb=nullptr, int dynamicOffsetCount=0, const DynamicOffset *dynamicOffsets=nullptr)
 Records binding a set of shader resources, such as, uniform buffers or textures, that are made visible to one or more shader stages.
void setVertexInput (int startBinding, int bindingCount, const VertexInput *bindings, QRhiBuffer *indexBuf=nullptr, quint32 indexOffset=0, IndexFormat indexFormat=IndexUInt16)
 Records vertex input bindings.
void setViewport (const QRhiViewport &viewport)
 Records setting the active viewport rectangle specified in viewport.
void setScissor (const QRhiScissor &scissor)
 Records setting the active scissor rectangle specified in scissor.
void setBlendConstants (const QColor &c)
 Records setting the active blend constants to c.
void setStencilRef (quint32 refValue)
 Records setting the active stencil reference value to refValue.
void setShadingRate (const QSize &coarsePixelSize)
 Sets the shading rate for the following draw calls to coarsePixelSize.
void draw (quint32 vertexCount, quint32 instanceCount=1, quint32 firstVertex=0, quint32 firstInstance=0)
 Records a non-indexed draw.
void drawIndexed (quint32 indexCount, quint32 instanceCount=1, quint32 firstIndex=0, qint32 vertexOffset=0, quint32 firstInstance=0)
 Records an indexed draw.
void debugMarkBegin (const QByteArray &name)
 Records a named debug group on the command buffer with the specified name.
void debugMarkEnd ()
 Records the end of a debug group.
void debugMarkMsg (const QByteArray &msg)
 Inserts a debug message msg into the command stream.
void beginComputePass (QRhiResourceUpdateBatch *resourceUpdates=nullptr, BeginPassFlags flags={})
 Records starting a new compute pass.
void endComputePass (QRhiResourceUpdateBatch *resourceUpdates=nullptr)
 Records ending the current compute pass.
void setComputePipeline (QRhiComputePipeline *ps)
 Records setting a new compute pipeline ps.
void dispatch (int x, int y, int z)
 Records dispatching compute work items, with x, y, and z specifying the number of local workgroups in the corresponding dimension.
const QRhiNativeHandlesnativeHandles ()
void beginExternal ()
 To be called when the application before the application is about to enqueue commands to the current pass' command buffer by calling graphics API functions directly.
void endExternal ()
 To be called once the externally added commands are recorded to the command buffer or context.
double lastCompletedGpuTime ()
Public Member Functions inherited from QRhiResource
virtual ~QRhiResource ()
 Destructor.
void deleteLater ()
 When called without a frame being recorded, this function is equivalent to deleting the object.
QByteArray name () const
void setName (const QByteArray &name)
 Sets a name for the object.
quint64 globalResourceId () const
QRhirhi () const

Public Attributes

QRhiBackendCommandList< Commandcommands
QVarLengthArray< QRhiPassResourceTracker, 8 > passResTrackers
int currentPassResTrackerIndex
PassType recordingPass
bool passNeedsResourceTracking
double lastGpuTime = 0
QRhiRenderTargetcurrentTarget
QRhiGraphicsPipelinecurrentGraphicsPipeline
QRhiComputePipelinecurrentComputePipeline
uint currentPipelineGeneration
QRhiShaderResourceBindingscurrentGraphicsSrb
QRhiShaderResourceBindingscurrentComputeSrb
uint currentSrbGeneration
struct QGles2CommandBuffer::GraphicsPassState graphicsPassState
struct QGles2CommandBuffer::ComputePassState computePassState
struct QGles2CommandBuffer::TextureUnitState textureUnitState [16]
QVarLengthArray< QByteArray, 4 > dataRetainPool
QVarLengthArray< QRhiBufferData, 4 > bufferDataRetainPool
QVarLengthArray< QImage, 4 > imageRetainPool

Static Public Attributes

static const int MAX_DYNAMIC_OFFSET_COUNT = 8

Additional Inherited Members

Protected Member Functions inherited from QRhiCommandBuffer
 QRhiCommandBuffer (QRhiImplementation *rhi)
Protected Member Functions inherited from QRhiResource
 QRhiResource (QRhiImplementation *rhi)
Protected Attributes inherited from QRhiResource
QRhiImplementationm_rhi = nullptr
quint64 m_id
QByteArray m_objectName

Detailed Description

Definition at line 306 of file qrhigles2_p.h.

Member Enumeration Documentation

◆ PassType

Enumerator
NoPass 
RenderPass 
ComputePass 

Definition at line 557 of file qrhigles2_p.h.

Constructor & Destructor Documentation

◆ QGles2CommandBuffer()

QGles2CommandBuffer::QGles2CommandBuffer ( QRhiImplementation * rhi)

Definition at line 6802 of file qrhigles2.cpp.

◆ ~QGles2CommandBuffer()

QGles2CommandBuffer::~QGles2CommandBuffer ( )

Definition at line 6808 of file qrhigles2.cpp.

Member Function Documentation

◆ destroy()

void QGles2CommandBuffer::destroy ( )
overridevirtual

Releases (or requests deferred releasing of) the underlying native graphics resources.

Safe to call multiple times, subsequent invocations will be a no-op then.

Once destroy() is called, the QRhiResource instance can be reused, by calling create() again. That will then result in creating new native graphics resources underneath.

Note
Resources referenced by commands for the current frame should not be released until the frame is submitted by QRhi::endFrame().

The QRhiResource destructor also performs the same task, so calling this function is not necessary before deleting a QRhiResource.

See also
deleteLater()

Implements QRhiResource.

Definition at line 6813 of file qrhigles2.cpp.

◆ resetCachedState()

void QGles2CommandBuffer::resetCachedState ( )
inline

Definition at line 671 of file qrhigles2_p.h.

References currentPipelineGeneration, currentSrbGeneration, and QGles2CommandBuffer::ComputePassState::reset().

Referenced by QRhiGles2::beginComputePass(), QRhiGles2::beginPass(), QRhiGles2::endExternal(), and resetState().

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◆ resetCommands()

void QGles2CommandBuffer::resetCommands ( )
inline

Definition at line 654 of file qrhigles2_p.h.

References currentPassResTrackerIndex.

Referenced by QRhiGles2::beginExternal(), and resetState().

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◆ resetState()

void QGles2CommandBuffer::resetState ( )
inline

Definition at line 663 of file qrhigles2_p.h.

References NoPass, passNeedsResourceTracking, recordingPass, resetCachedState(), and resetCommands().

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◆ retainBufferData()

const uchar * QGles2CommandBuffer::retainBufferData ( const QRhiBufferData & data)
inline

Definition at line 646 of file qrhigles2_p.h.

◆ retainData()

const void * QGles2CommandBuffer::retainData ( const QByteArray & data)
inline

Definition at line 642 of file qrhigles2_p.h.

◆ retainImage()

const void * QGles2CommandBuffer::retainImage ( const QImage & image)
inline

Definition at line 650 of file qrhigles2_p.h.

Member Data Documentation

◆ bufferDataRetainPool

QVarLengthArray<QRhiBufferData, 4> QGles2CommandBuffer::bufferDataRetainPool

Definition at line 638 of file qrhigles2_p.h.

◆ commands

QRhiBackendCommandList<Command> QGles2CommandBuffer::commands

Definition at line 563 of file qrhigles2_p.h.

◆ computePassState

struct QGles2CommandBuffer::ComputePassState QGles2CommandBuffer::computePassState

◆ currentComputePipeline

QRhiComputePipeline* QGles2CommandBuffer::currentComputePipeline

Definition at line 572 of file qrhigles2_p.h.

◆ currentComputeSrb

QRhiShaderResourceBindings* QGles2CommandBuffer::currentComputeSrb

Definition at line 575 of file qrhigles2_p.h.

◆ currentGraphicsPipeline

QRhiGraphicsPipeline* QGles2CommandBuffer::currentGraphicsPipeline

Definition at line 571 of file qrhigles2_p.h.

◆ currentGraphicsSrb

QRhiShaderResourceBindings* QGles2CommandBuffer::currentGraphicsSrb

Definition at line 574 of file qrhigles2_p.h.

◆ currentPassResTrackerIndex

int QGles2CommandBuffer::currentPassResTrackerIndex

◆ currentPipelineGeneration

uint QGles2CommandBuffer::currentPipelineGeneration

Definition at line 573 of file qrhigles2_p.h.

Referenced by resetCachedState().

◆ currentSrbGeneration

uint QGles2CommandBuffer::currentSrbGeneration

Definition at line 576 of file qrhigles2_p.h.

Referenced by resetCachedState().

◆ currentTarget

QRhiRenderTarget* QGles2CommandBuffer::currentTarget

Definition at line 570 of file qrhigles2_p.h.

◆ dataRetainPool

QVarLengthArray<QByteArray, 4> QGles2CommandBuffer::dataRetainPool

Definition at line 637 of file qrhigles2_p.h.

◆ graphicsPassState

struct QGles2CommandBuffer::GraphicsPassState QGles2CommandBuffer::graphicsPassState

◆ imageRetainPool

QVarLengthArray<QImage, 4> QGles2CommandBuffer::imageRetainPool

Definition at line 639 of file qrhigles2_p.h.

◆ lastGpuTime

double QGles2CommandBuffer::lastGpuTime = 0

Definition at line 569 of file qrhigles2_p.h.

Referenced by QRhiGles2::lastCompletedGpuTime().

◆ MAX_DYNAMIC_OFFSET_COUNT

const int QGles2CommandBuffer::MAX_DYNAMIC_OFFSET_COUNT = 8
static

Definition at line 313 of file qrhigles2_p.h.

Referenced by QRhiGles2::setShaderResources().

◆ passNeedsResourceTracking

bool QGles2CommandBuffer::passNeedsResourceTracking

◆ passResTrackers

QVarLengthArray<QRhiPassResourceTracker, 8> QGles2CommandBuffer::passResTrackers

Definition at line 564 of file qrhigles2_p.h.

◆ recordingPass

◆ textureUnitState

struct QGles2CommandBuffer::TextureUnitState QGles2CommandBuffer::textureUnitState[16]

The documentation for this struct was generated from the following files: