#include <graphicsCmds.h>

Inheritance diagram for HgiGLGraphicsCmds:

Public Member Functions
HGIGL_API	~HgiGLGraphicsCmds () override

HGIGL_API void	InsertFunctionOp (std::function< void(void)> const &fn)

HGIGL_API void	PushDebugGroup (const char *label) override
	Push a debug marker. More...

HGIGL_API void	PopDebugGroup () override
	Pop the last debug marker. More...

HGIGL_API void	SetViewport (GfVec4i const &vp) override
	Set viewport [left, BOTTOM, width, height] - OpenGL coords. More...

HGIGL_API void	SetScissor (GfVec4i const &sc) override

HGIGL_API void	BindPipeline (HgiGraphicsPipelineHandle pipeline) override

HGIGL_API void	BindResources (HgiResourceBindingsHandle resources) override

HGIGL_API void	SetConstantValues (HgiGraphicsPipelineHandle pipeline, HgiShaderStage stages, uint32_t bindIndex, uint32_t byteSize, const void *data) override

HGIGL_API void	BindVertexBuffers (uint32_t firstBinding, HgiBufferHandleVector const &buffers, std::vector< uint32_t > const &byteOffsets) override

HGIGL_API void	DrawIndexed (HgiBufferHandle const &indexBuffer, uint32_t indexCount, uint32_t indexBufferByteOffset, uint32_t firstIndex, uint32_t vertexOffset, uint32_t instanceCount) override

Public Member Functions inherited from HgiGraphicsCmds
HGI_API	~HgiGraphicsCmds () override

Public Member Functions inherited from HgiCmds
virtual HGI_API	~HgiCmds ()

Protected Member Functions
HGIGL_API	HgiGLGraphicsCmds (HgiGLDevice *device, HgiGraphicsCmdsDesc const &desc)

HGIGL_API bool	_Submit (Hgi *hgi) override

Protected Member Functions inherited from HgiGraphicsCmds
HGI_API	HgiGraphicsCmds ()

Protected Member Functions inherited from HgiCmds
HGI_API	HgiCmds ()

Friends
class	HgiGL

Detailed Description

OpenGL implementation of HgiGraphicsCmds.

Definition at line 43 of file graphicsCmds.h.

Constructor & Destructor Documentation

HGIGL_API HgiGLGraphicsCmds::~HgiGLGraphicsCmds ( )

override

HGIGL_API HgiGLGraphicsCmds::HgiGLGraphicsCmds	(	HgiGLDevice *	device,
		HgiGraphicsCmdsDesc const &	desc
	)

protected

Member Function Documentation

HGIGL_API bool HgiGLGraphicsCmds::_Submit ( Hgi * hgi )

overrideprotectedvirtual

Reimplemented from HgiCmds.

HGIGL_API void HgiGLGraphicsCmds::BindPipeline ( HgiGraphicsPipelineHandle pipeline )

overridevirtual

Bind a pipeline state object. Usually you call this right after calling CreateGraphicsCmds to set the graphics pipeline state. The resource bindings used when creating the pipeline must be compatible with the resources bound via BindResources().

Implements HgiGraphicsCmds.

HGIGL_API void HgiGLGraphicsCmds::BindResources ( HgiResourceBindingsHandle resources )

overridevirtual

Bind resources such as textures and uniform buffers. Usually you call this right after BindPipeline() and the resources bound must be compatible with the bound pipeline.

Implements HgiGraphicsCmds.

HGIGL_API void HgiGLGraphicsCmds::BindVertexBuffers	(	uint32_t	firstBinding,
		HgiBufferHandleVector const &	buffers,
		std::vector< uint32_t > const &	byteOffsets
	)

overridevirtual

Binds the vertex buffer(s) that describe the vertex attributes. firstBinding the first index to which buffers are bound (usually 0). byteOffsets offset to where the data of each buffer starts, in bytes. strides the size of a vertex in each of the buffers.

Implements HgiGraphicsCmds.

HGIGL_API void HgiGLGraphicsCmds::DrawIndexed	(	HgiBufferHandle const &	indexBuffer,
		uint32_t	indexCount,
		uint32_t	indexBufferByteOffset,
		uint32_t	firstIndex,
		uint32_t	vertexOffset,
		uint32_t	instanceCount
	)

overridevirtual

Records a draw command that renders one or more instances of primitives using an indexBuffer starting from the base vertex of the base instance. indexCount is the number of vertices. indexBufferByteOffset: Byte offset within indexBuffer to start reading indices from. vertexOffset: the value added to the vertex index before indexing into the vertex buffer (baseVertex). instanceCount: number of instances (min 1) of the primitves to render.

Implements HgiGraphicsCmds.

HGIGL_API void HgiGLGraphicsCmds::InsertFunctionOp ( std::function< void(void)> const & fn )

XXX This function is exposed temporarily for Hgi transition. It allows code that is not yet converted to Hgi (e.g. HdSt) to insert its opengl calls into the ops-stack of HgiGL to ensure that all commands execute in the correct order. Once HdSt has transition fully to Hgi we should remove this function.

HGIGL_API void HgiGLGraphicsCmds::PopDebugGroup ( )

overridevirtual

Pop the last debug marker.

Implements HgiGraphicsCmds.

HGIGL_API void HgiGLGraphicsCmds::PushDebugGroup ( const char * label )

overridevirtual

Push a debug marker.

Implements HgiGraphicsCmds.

HGIGL_API void HgiGLGraphicsCmds::SetConstantValues	(	HgiGraphicsPipelineHandle	pipeline,
		HgiShaderStage	stages,
		uint32_t	bindIndex,
		uint32_t	byteSize,
		const void *	data
	)

overridevirtual

Set Push / Function constants. pipeline is the pipeline that you are binding before the draw call. It contains the program used for the uniform buffer stages describes for what shader stage you are setting the push constant values for. Each stage can have its own (or none) binding and they must match what is described in the shader functions. byteSize is the size of the data you are updating. data is the data you are copying into the push constants block.

Implements HgiGraphicsCmds.

HGIGL_API void HgiGLGraphicsCmds::SetScissor ( GfVec4i const & sc )