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GLTextureContext Class Reference

#include <glTextureContext.h>

Inheritance diagram for GLTextureContext:

List of all members.

Public Member Functions
	GLTextureContext (Texture *tex)
virtual TypeHandle	get_type () const
virtual TypeHandle	force_init_type ()
virtual size_t	estimate_texture_memory ()
	Estimates the amount of texture memory that will be consumed by loading this texture.
void	mark_dirty (int flags_to_set)
	Marks the context "dirty", i.e.
void	clear_dirty_flags (int flags_to_clear=~0)
	Removes the indicated flags from the "dirty" bits.
int	get_dirty_flags () const
	Returns the current state of the dirty flags.
int	get_type_index () const
	Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.
bool	is_of_type (TypeHandle handle) const
	Returns true if the current object is or derives from the indicated type.
bool	is_exact_type (TypeHandle handle) const
	Returns true if the current object is the indicated type exactly.
Static Public Member Functions
TypeHandle	get_class_type ()
void	init_type ()
	This function is declared non-inline to work around a compiler bug in g++ 2.96.
Public Attributes
GLuint	_index
GLfloat	_priority
Texture *	_texture
Static Private Attributes
TypeHandle	_type_handle

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Constructor & Destructor Documentation

GLTextureContext::GLTextureContext (  Texture *  tex  )  [inline]

Definition at line 31 of file glTextureContext.I.

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Member Function Documentation

void TextureContext::clear_dirty_flags (  int  flags_to_clear = ~0  )  [inline, inherited]

Removes the indicated flags from the "dirty" bits. See mark_dirty(). The value is the union of all the bits that are to be cleared; if a bit is set in the parameter, it will be removed from the dirty set. Bits that are not set in this parameter are left unchanged. This function is intended to be called by the GSG after it has updated the texture parameters. Definition at line 103 of file textureContext.I. Referenced by DXGraphicsStateGuardian8::draw_sphere().

size_t TextureContext::estimate_texture_memory (   )  [virtual, inherited]

Estimates the amount of texture memory that will be consumed by loading this texture. This is mainly useful for debugging and reporting purposes. Returns a value in bytes. Definition at line 46 of file textureContext.cxx. References TextureContext::_texture, Texture::FT_linear_mipmap_linear, Texture::FT_linear_mipmap_nearest, Texture::FT_nearest_mipmap_linear, Texture::FT_nearest_mipmap_nearest, and size_t.

virtual TypeHandle GLTextureContext::force_init_type (  void   )  [inline, virtual]

Reimplemented from TextureContext. Definition at line 65 of file glTextureContext.h.

TypeHandle GLTextureContext::get_class_type (  void   )  [inline, static]

Reimplemented from TextureContext. Definition at line 54 of file glTextureContext.h.

int TextureContext::get_dirty_flags (   )  const [inline, inherited]

Returns the current state of the dirty flags. If this is non-zero, it represents the union of all properties that have been changed since the last call to clear_dirty_flags(). This function is intended to be called by the GSG to determine what properties need to be updated. See Texture::DirtyFlags for a list of possible bits. Definition at line 131 of file textureContext.I. Referenced by DXGraphicsStateGuardian8::draw_sphere().

virtual TypeHandle GLTextureContext::get_type (  void   )  const [inline, virtual]

Reimplemented from TextureContext. Definition at line 62 of file glTextureContext.h.

int TypedObject::get_type_index (   )  const [inline, inherited]

Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. This is equivalent to get_type().get_index(). Definition at line 71 of file typedObject.I. References TypeHandle::get_name(), TypedObject::get_type(), and INLINE.

void GLTextureContext::init_type (  void   )  [inline, static]

This function is declared non-inline to work around a compiler bug in g++ 2.96. Making it inline seems to cause problems in the optimizer. Reimplemented from TextureContext. Definition at line 57 of file glTextureContext.h. References TextureContext::get_class_type(). Referenced by ConfigureFn().

bool TypedObject::is_exact_type (  TypeHandle  handle  )  const [inline, inherited]

Returns true if the current object is the indicated type exactly. Definition at line 101 of file typedObject.I. Referenced by PT(), and CollisionNode::xform().

bool TypedObject::is_of_type (  TypeHandle  handle  )  const [inline, inherited]

Returns true if the current object is or derives from the indicated type. Definition at line 86 of file typedObject.I. Referenced by EggMaterialCollection::collapse_equivalent_materials(), EggTextureCollection::collapse_equivalent_textures(), DeferredNodeProperty::compose(), AnimBundleMaker::create_s_channel(), CharacterMaker::create_slider(), ProjectionScreen::cull_callback(), DataNode::define_output(), EggNode::determine_draw_order(), CharacterMaker::egg_to_index(), EggGroupUniquifier::EggGroupUniquifier(), EggPoolUniquifier::EggPoolUniquifier(), EggGroupNode::find_textures(), StaticTextFont::get_glyph(), EggMaterialCollection::insert_materials(), EggTextureCollection::insert_textures(), CharacterJoint::make_copy(), PT(), EggGroupNode::r_flatten_transforms(), EggGroupNode::r_transform_vertices(), EggGroupNode::recompute_polygon_normals(), CollisionLevelState::reserve(), PandaFramework::reset_frame_rate(), PandaFramework::set_texture(), EggGroupNode::steal_children(), and DataGraphTraverser::traverse().

void TextureContext::mark_dirty (  int  flags_to_set  )  [inline, inherited]

Marks the context "dirty", i.e. its properties are different from the last time the GSG has seen them. Presumably, the GSG will respond by updating the properties and clearing the dirty bits the next time it renders the texture. The value is the union of all the bits that are to be set dirty; bits that are not set in this parameter are left unchanged. See Texture::DirtyFlags for a list of available bits. Usually this function is not called directly, but rather is called by Texture::mark_dirty() as a result of changing properties directly on the texture. Definition at line 72 of file textureContext.I. References TextureContext::_texture.

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Member Data Documentation

GLuint GLTextureContext::_index

Definition at line 48 of file glTextureContext.h.

GLfloat GLTextureContext::_priority

Definition at line 51 of file glTextureContext.h.

Texture* TextureContext::_texture [inherited]

Definition at line 64 of file textureContext.h. Referenced by GLGraphicsStateGuardian::bind_texture(), DXGraphicsStateGuardian8::draw_sphere(), TextureContext::estimate_texture_memory(), DXTextureContext8::FillDDSurfTexturePixels(), TextureContext::mark_dirty(), and CRGraphicsStateGuardian::release_geom_node().

TypeHandle GLTextureContext::_type_handle [static, private]

Reimplemented from TextureContext. Definition at line 24 of file glTextureContext.cxx.

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

• panda/src/glgsg/glTextureContext.h
• panda/src/glgsg/glTextureContext.cxx
• panda/src/glgsg/glTextureContext.I

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