#include "dxShaderContext9.h"

Inheritance diagram for DXShaderContext9:

Public Types
typedef DXGraphicsStateGuardian9	GSG

Public Member Functions
	DXShaderContext9 (Shader s, GSG gsg)
	xyz More...

	~DXShaderContext9 ()
	xyz More...

bool	bind (GSG *gsg)
	This function is to be called to enable a new shader. More...

void	disable_shader_texture_bindings (GSG *gsg)
	Disable all the texture bindings used by this shader. More...

void	disable_shader_vertex_arrays (GSG *gsg)
	Disable all the vertex arrays used by this shader. More...

virtual TypeHandle	force_init_type ()

virtual TypeHandle	get_type () const

void	issue_parameters (GSG *gsg, int altered)
	This function gets called whenever the RenderState or TransformState has changed, but the Shader itself has not changed. More...

void	issue_transform (GSG *gsg)

void	unbind (GSG *gsg)
	This function disables a currently-bound shader. More...

void	update_shader_texture_bindings (DXShaderContext9 prev, GSG gsg)
	Disables all texture bindings used by the previous shader, then enables all the texture bindings needed by this shader. More...

bool	update_shader_vertex_arrays (DXShaderContext9 prev, GSG gsg, bool force)
	Disables all vertex arrays used by the previous shader, then enables all the vertex arrays needed by this shader. More...

bool	valid (GSG *gsg)
	Returns true if the shader is "valid", ie, if the compilation was successful. More...

Public Member Functions inherited from ShaderContext
	ShaderContext (Shader *se)

virtual void	bind ()

virtual void	disable_shader_texture_bindings ()

virtual void	disable_shader_vertex_arrays ()

Shader *	get_shader () const

virtual void	issue_parameters (int altered)

virtual void	set_state_and_transform (const RenderState , const TransformState , const TransformState , const TransformState )

virtual void	unbind ()

virtual void	update_shader_buffer_bindings (ShaderContext *prev)

virtual void	update_shader_texture_bindings (ShaderContext *prev)

virtual bool	update_shader_vertex_arrays (ShaderContext *prev, bool force)

virtual bool	uses_custom_vertex_arrays (void)

virtual bool	uses_standard_vertex_arrays (void)

virtual bool	valid ()

Public Member Functions inherited from SavedContext
virtual void	output (std::ostream &out) const

virtual void	write (std::ostream &out, int indent_level) const

Public Member Functions inherited from TypedObject
	TypedObject (const TypedObject &copy)=default

TypedObject *	as_typed_object ()
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

const TypedObject *	as_typed_object () const
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

int	get_best_parent_from_Set (const std::set< int > &) const

int	get_type_index () const
	Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...

bool	is_exact_type (TypeHandle handle) const
	Returns true if the current object is the indicated type exactly. More...

bool	is_of_type (TypeHandle handle) const
	Returns true if the current object is or derives from the indicated type. More...

TypedObject &	operator= (const TypedObject &copy)=default

Static Public Member Functions
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from ShaderContext
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from SavedContext
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from TypedObject
static TypeHandle	get_class_type ()

static void	init_type ()
	This function is declared non-inline to work around a compiler bug in g++ 2.96. More...

Public Attributes
std::string	_name

int	_num_bound_streams

LPDIRECT3DVERTEXDECLARATION9	_vertex_declaration

class VertexElementArray *	_vertex_element_array

Public Attributes inherited from ShaderContext
Shader *	_shader

	get_shader

Public Attributes inherited from TypedObject
	get_type

Detailed Description

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Definition at line 58 of file dxShaderContext9.h.

Constructor & Destructor Documentation

◆ DXShaderContext9()

DXShaderContext9::DXShaderContext9	(	Shader *	s,
		GSG *	gsg
	)

xyz

Definition at line 37 of file dxShaderContext9.cxx.

References Shader::get_filename().

◆ ~DXShaderContext9()

DXShaderContext9::~DXShaderContext9 ( )

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Definition at line 83 of file dxShaderContext9.cxx.

Member Function Documentation

◆ bind()

bool DXShaderContext9::bind ( GSG * gsg )

This function is to be called to enable a new shader.

It also initializes all of the shader's input parameters.

Definition at line 122 of file dxShaderContext9.cxx.

References issue_parameters().

◆ disable_shader_texture_bindings()

void DXShaderContext9::disable_shader_texture_bindings ( GSG * gsg )

Disable all the texture bindings used by this shader.

Definition at line 634 of file dxShaderContext9.cxx.

Referenced by DXGraphicsStateGuardian9::end_scene(), and update_shader_texture_bindings().

◆ disable_shader_vertex_arrays()

void DXShaderContext9::disable_shader_vertex_arrays ( GSG * gsg )

Disable all the vertex arrays used by this shader.

Definition at line 342 of file dxShaderContext9.cxx.

Referenced by DXGraphicsStateGuardian9::end_scene(), and update_shader_vertex_arrays().

◆ issue_parameters()

void DXShaderContext9::issue_parameters	(	GSG *	gsg,
		int	altered
	)

This function gets called whenever the RenderState or TransformState has changed, but the Shader itself has not changed.

It loads new values into the shader's parameters.

If "altered" is false, that means you promise that the parameters for this shader context have already been issued once, and that since the last time the parameters were issued, no part of the render state has changed except the external and internal transforms.

Definition at line 192 of file dxShaderContext9.cxx.

Referenced by bind(), and DXGraphicsStateGuardian9::set_state_and_transform().

◆ unbind()

void DXShaderContext9::unbind ( GSG * gsg )

This function disables a currently-bound shader.

Definition at line 160 of file dxShaderContext9.cxx.

Referenced by DXGraphicsStateGuardian9::end_scene().

◆ update_shader_texture_bindings()

void DXShaderContext9::update_shader_texture_bindings	(	DXShaderContext9 *	prev,
		GSG *	gsg
	)

Disables all texture bindings used by the previous shader, then enables all the texture bindings needed by this shader.

Extracts the relevant vertex array data from the gsg. The current implementation is inefficient, because it may unnecessarily disable textures then immediately reenable them. We may optimize this someday.

Definition at line 665 of file dxShaderContext9.cxx.

References disable_shader_texture_bindings().

◆ update_shader_vertex_arrays()

bool DXShaderContext9::update_shader_vertex_arrays	(	DXShaderContext9 *	prev,
		GSG *	gsg,
		bool	force
	)

Disables all vertex arrays used by the previous shader, then enables all the vertex arrays needed by this shader.

Extracts the relevant vertex array data from the gsg. The current implementation is inefficient, because it may unnecessarily disable arrays then immediately reenable them. We may optimize this someday.

Definition at line 359 of file dxShaderContext9.cxx.

References disable_shader_vertex_arrays(), InternalName::get_basename, GeomVertexArrayFormat::get_stride, TextureStage::get_texcoord_name, and DXGraphicsStateGuardian9::setup_array_data().

◆ valid()

bool DXShaderContext9::valid ( GSG * gsg )

inline

Returns true if the shader is "valid", ie, if the compilation was successful.

The compilation could fail if there is a syntax error in the shader, or if the current video card isn't shader-capable, or if no shader languages are compiled into panda.

Definition at line 21 of file dxShaderContext9.I.

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

panda/src/dxgsg9/dxShaderContext9.h
panda/src/dxgsg9/dxShaderContext9.cxx
panda/src/dxgsg9/dxShaderContext9.I

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes