Urho3D::ShaderProgram Class Reference

Linked shader program on the GPU. More...

#include <Urho3D/Graphics/OpenGL/OGLShaderProgram.h>

Inheritance diagram for Urho3D::ShaderProgram:

Collaboration diagram for Urho3D::ShaderProgram:

Public Member Functions
	ShaderProgram (Graphics *graphics, ShaderVariation *vertexShader, ShaderVariation *pixelShader)
	Construct.
	~ShaderProgram ()
	Destruct.
virtual void	OnDeviceLost ()
	Mark the GPU resource destroyed on context destruction.
virtual void	Release ()
	Release shader program.
bool	Link ()
	Link the shaders and examine the uniforms and samplers used. Return true if successful.
ShaderVariation *	GetVertexShader () const
	Return the vertex shader.
ShaderVariation *	GetPixelShader () const
	Return the pixel shader.
bool	HasParameter (StringHash param) const
	Return whether uses a shader parameter.
bool	HasTextureUnit (TextureUnit unit) const
	Return whether uses a texture unit.
const ShaderParameter *	GetParameter (StringHash param) const
	Return the info for a shader parameter, or null if does not exist.
const String &	GetLinkerOutput () const
	Return linker output.
const HashMap< Pair< unsigned char, unsigned char > , unsigned > &	GetVertexAttributes () const
	Return semantic to vertex attributes location mappings used by the shader.
unsigned	GetUsedVertexAttributes () const
	Return attribute location use bitmask.
const SharedPtr< ConstantBuffer > *	GetConstantBuffers () const
	Return all constant buffers.
bool	NeedParameterUpdate (ShaderParameterGroup group, const void *source)
	Check whether a shader parameter group needs update. Does not actually check whether parameters exist in the shaders.
void	ClearParameterSource (ShaderParameterGroup group)
	Clear a parameter source. Affects only the current shader program if appropriate.
Public Member Functions inherited from Urho3D::RefCounted
	RefCounted ()
	Construct. Allocate the reference count structure and set an initial self weak reference.
virtual	~RefCounted ()
	Destruct. Mark as expired and also delete the reference count structure if no outside weak references exist.
void	AddRef ()
	Increment reference count. Can also be called outside of a SharedPtr for traditional reference counting.
void	ReleaseRef ()
	Decrement reference count and delete self if no more references. Can also be called outside of a SharedPtr for traditional reference counting.
int	Refs () const
	Return reference count.
int	WeakRefs () const
	Return weak reference count.
RefCount *	RefCountPtr ()
	Return pointer to the reference count structure.
Public Member Functions inherited from Urho3D::GPUObject
	GPUObject (Graphics *graphics)
	Construct with graphics subsystem pointer.
virtual	~GPUObject ()
	Destruct. Remove from the Graphics.
virtual void	OnDeviceReset ()
	Recreate the GPU resource and restore data if applicable.
void	ClearDataLost ()
	Clear the data lost flag.
Graphics *	GetGraphics () const
	Return the graphics subsystem associated with this GPU object.
void *	GetGPUObject () const
	Return the object pointer. Applicable only on Direct3D.
unsigned	GetGPUObjectName () const
	Return the object name. Applicable only on OpenGL.
bool	IsDataLost () const
	Return whether data is lost due to context loss.
bool	HasPendingData () const
	Return whether has pending data assigned while graphics context was lost.

Static Public Member Functions
static void	ClearParameterSources ()
	Clear all parameter sources from all shader programs by incrementing the global parameter source framenumber.
static void	ClearGlobalParameterSource (ShaderParameterGroup group)
	Clear a global parameter source when constant buffers change.

Private Attributes
WeakPtr< ShaderVariation >	vertexShader_
	Vertex shader.
WeakPtr< ShaderVariation >	pixelShader_
	Pixel shader.
HashMap< StringHash, ShaderParameter >	shaderParameters_
	Shader parameters.
bool	useTextureUnit_ [MAX_TEXTURE_UNITS]
	Texture unit use.
HashMap< Pair< unsigned char, unsigned char >, unsigned >	vertexAttributes_
	Vertex attributes.
unsigned	usedVertexAttributes_
	Used vertex attribute location bitmask.
SharedPtr< ConstantBuffer >	constantBuffers_ [MAX_SHADER_PARAMETER_GROUPS *2]
	Constant buffers by binding index.
const void *	parameterSources_ [MAX_SHADER_PARAMETER_GROUPS]
	Remembered shader parameter sources for individual uniform mode.
String	linkerOutput_
	Shader link error string.
unsigned	frameNumber_
	Shader parameter source framenumber.

Static Private Attributes
static unsigned	globalFrameNumber = 0
	Global shader parameter source framenumber.
static const void *	globalParameterSources [MAX_SHADER_PARAMETER_GROUPS]
	Remembered global shader parameter sources for constant buffer mode.

Additional Inherited Members
Protected Attributes inherited from Urho3D::GPUObject
WeakPtr< Graphics >	graphics_
	Graphics subsystem.
GPUObjectHandle	object_
	Object pointer or name.
bool	dataLost_
	Data lost flag.
bool	dataPending_
	Data pending flag.

Detailed Description

Linked shader program on the GPU.

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

• Source/Urho3D/Graphics/OpenGL/OGLShaderProgram.h
• Source/Urho3D/Graphics/OpenGL/OGLShaderProgram.cpp