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Shader Class Reference

Inheritance diagram for Shader:
TypedReferenceCount TypedObject ReferenceCount MemoryBase MemoryBase

List of all members.

Classes

struct  ShaderArgId
struct  ShaderArgInfo
struct  ShaderCaps
struct  ShaderFile
struct  ShaderMatSpec
struct  ShaderTexSpec
struct  ShaderVarSpec

Public Types

enum  ShaderArgDir { SAD_in, SAD_out, SAD_inout, SAD_unknown }
enum  ShaderArgType {
  SAT_float1, SAT_float2, SAT_float3, SAT_float4,
  SAT_float4x4, SAT_sampler1d, SAT_sampler2d, SAT_sampler3d,
  SAT_samplercube, SAT_unknown
}
enum  ShaderBug { SBUG_ati_draw_buffers }
enum  ShaderLanguage { SL_none, SL_Cg, SL_GLSL }
enum  ShaderMatFunc {
  SMF_compose, SMF_transform_dlight, SMF_transform_plight, SMF_transform_slight,
  SMF_first
}
enum  ShaderMatInput {
  SMO_identity, SMO_window_size, SMO_pixel_size, SMO_texpad_x,
  SMO_texpix_x, SMO_attr_material, SMO_attr_color, SMO_attr_colorscale,
  SMO_alight_x, SMO_dlight_x, SMO_plight_x, SMO_slight_x,
  SMO_satten_x, SMO_texmat_x, SMO_plane_x, SMO_clipplane_x,
  SMO_mat_constant_x, SMO_vec_constant_x, SMO_world_to_view, SMO_view_to_world,
  SMO_model_to_view, SMO_view_to_model, SMO_apiview_to_view, SMO_view_to_apiview,
  SMO_clip_to_view, SMO_view_to_clip, SMO_apiclip_to_view, SMO_view_to_apiclip,
  SMO_view_x_to_view, SMO_view_to_view_x, SMO_apiview_x_to_view, SMO_view_to_apiview_x,
  SMO_clip_x_to_view, SMO_view_to_clip_x, SMO_apiclip_x_to_view, SMO_view_to_apiclip_x,
  SMO_INVALID
}
enum  ShaderMatPiece {
  SMP_whole, SMP_transpose, SMP_row0, SMP_row1,
  SMP_row2, SMP_row3, SMP_col0, SMP_col1,
  SMP_col2, SMP_col3, SMP_row3x1, SMP_row3x2,
  SMP_row3x3
}
enum  ShaderStateDep {
  SSD_NONE = 0, SSD_general = 1, SSD_transform = 2, SSD_color = 4,
  SSD_colorscale = 8, SSD_material = 16, SSD_shaderinputs = 32
}
enum  ShaderType { ST_none = 0, ST_vertex, ST_fragment, ST_geometry }

Public Member Functions

 Shader (CPT(ShaderFile) name, CPT(ShaderFile) text, const ShaderLanguage &lang=SL_none)
 Construct a Shader.
TypedObjectas_typed_object ()
 Returns the object, upcast (if necessary) to a TypedObject pointer.
const TypedObjectas_typed_object () const
 Returns the object, upcast (if necessary) to a TypedObject pointer.
 CPT (ShaderFile) _text
virtual TypeHandle force_init_type ()
int get_best_parent_from_Set (const std::set< int > &) const
const bool get_error_flag () const
 Returns true if the shader contains a compile-time error.
const Filename get_filename (const ShaderType &type=ST_none) const
 Return the Shader's filename for the given shader type.
const ShaderLanguage get_language () const
 Returns the shader language in which this shader was written.
int get_ref_count () const
 Returns the current reference count.
const string get_text (const ShaderType &type=ST_none) const
 Return the Shader's text for the given shader type.
virtual TypeHandle get_type () const
int get_type_index () const
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.
WeakReferenceListget_weak_list () const
 Returns the WeakReferenceList associated with this ReferenceCount object.
bool has_weak_list () const
 Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.
bool is_exact_type (TypeHandle handle) const
 Returns true if the current object is the indicated type exactly.
bool is_of_type (TypeHandle handle) const
 Returns true if the current object is or derives from the indicated type.
bool is_prepared (PreparedGraphicsObjects *prepared_objects) const
void local_object ()
 This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.
void operator delete (void *ptr)
void operator delete (void *ptr, void *)
void operator delete (void *ptr)
void operator delete (void *ptr, void *)
void operator delete[] (void *ptr)
void operator delete[] (void *, void *)
void operator delete[] (void *, void *)
void operator delete[] (void *ptr)
void * operator new (size_t size, void *ptr)
void * operator new (size_t size)
void * operator new (size_t size, void *ptr)
void * operator new (size_t size)
void * operator new[] (size_t size)
void * operator new[] (size_t size, void *ptr)
void * operator new[] (size_t size)
void * operator new[] (size_t size, void *ptr)
void prepare (PreparedGraphicsObjects *prepared_objects)
ShaderContextprepare_now (PreparedGraphicsObjects *prepared_objects, GraphicsStateGuardianBase *gsg)
void ref () const
 Explicitly increments the reference count.
bool release (PreparedGraphicsObjects *prepared_objects)
int release_all ()
bool test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool test_ref_count_nonzero () const
 Does some easy checks to make sure that the reference count isn't zero, or completely bogus.
virtual bool unref () const
 Explicitly decrements the reference count.
void weak_ref (WeakPointerToVoid *ptv)
 Adds the indicated PointerToVoid as a weak reference to this object.
void weak_unref (WeakPointerToVoid *ptv)
 Removes the indicated PointerToVoid as a weak reference to this object.

Static Public Member Functions

static TypeHandle get_class_type ()
static ShaderUtilization get_shader_utilization ()
 This flag returns SUT_none, SUT_basic, or SUT_advanced and controls the automatic generation of shaders.
static bool have_shader_utilization ()
 If true, then get_shader_utilization has been set using set_shader_utilization.
static void init_type ()
 This function is declared non-inline to work around a compiler bug in g++ 2.96.
static PT (Shader) load(const ShaderLanguage &lang
static PT (Shader) load(const Filename &file
static PT (Shader) make(const string &body
static PT (Shader) make(const ShaderLanguage &lang
static void register_with_read_factory ()
static void set_shader_utilization (ShaderUtilization utl)
 Set this flag to SUT_none, SUT_basic, or SUT_advanced to limit panda's automatic shader generation facilities.

Public Attributes

bool _error_flag
pvector< int > _glsl_parameter_map
pvector< ShaderMatSpec_mat_spec
pvector< ShaderTexSpec_tex_spec
pvector< ShaderVarSpec_var_spec
static const Filename const
Filename
fragment
static const string const string & fragment
static const Filename const
Filename const Filename
geometry = "")
static const string const
string const string & 
geometry = "")
static const ShaderLanguage & lang = SL_none)
static const string & vertex
static const Filenamevertex

Protected Types

typedef pmap
< PreparedGraphicsObjects
*, ShaderContext * > 
Contexts
typedef pmap< CPT(ShaderFile),
Shader * > 
ShaderTable

Protected Member Functions

 CPT (ShaderFile) _filename
bool do_test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool do_test_ref_count_nonzero () const
 Returns true if the reference count is nonzero, false otherwise.

Protected Attributes

Contexts _contexts
ShaderLanguage _language
bool _loaded
int _parse

Static Protected Attributes

static ShaderCaps _default_caps
static ShaderTable _load_table
static ShaderTable _make_table
static ShaderUtilization _shader_utilization = SUT_UNSPECIFIED
static int _shaders_generated

Friends

class PreparedGraphicsObjects
class ShaderContext

Detailed Description

Definition at line 37 of file shader.h.


Constructor & Destructor Documentation

Shader::Shader ( CPT(ShaderFile name,
CPT(ShaderFile text,
const ShaderLanguage &  lang = SL_none 
)

Construct a Shader.

Definition at line 1631 of file shader.cxx.


Member Function Documentation

TypedObject * TypedObject::as_typed_object ( ) [inline, inherited]

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

Definition at line 99 of file typedObject.I.

const TypedObject * TypedObject::as_typed_object ( ) const [inline, inherited]

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

Definition at line 110 of file typedObject.I.

bool ReferenceCount::do_test_ref_count_integrity ( ) const [protected, inherited]

Does some easy checks to make sure that the reference count isn't completely bogus.

Returns true if ok, false otherwise.

Reimplemented in NodeReferenceCount, CachedTypedWritableReferenceCount, and NodeCachedReferenceCount.

Definition at line 29 of file referenceCount.cxx.

Referenced by ReferenceCount::do_test_ref_count_nonzero(), and ReferenceCount::test_ref_count_integrity().

bool ReferenceCount::do_test_ref_count_nonzero ( ) const [protected, inherited]

Returns true if the reference count is nonzero, false otherwise.

Definition at line 56 of file referenceCount.cxx.

References ReferenceCount::do_test_ref_count_integrity().

Referenced by ReferenceCount::test_ref_count_nonzero().

const bool Shader::get_error_flag ( ) const [inline]

Returns true if the shader contains a compile-time error.

This doesn't tell you whether or not the shader is supported on the current video card.

Definition at line 78 of file shader.I.

const Filename Shader::get_filename ( const ShaderType &  type = ST_none) const [inline]

Return the Shader's filename for the given shader type.

Definition at line 22 of file shader.I.

const Shader::ShaderLanguage Shader::get_language ( ) const [inline]

Returns the shader language in which this shader was written.

Definition at line 132 of file shader.I.

int ReferenceCount::get_ref_count ( ) const [inline, inherited]
ShaderUtilization Shader::get_shader_utilization ( ) [inline, static]

This flag returns SUT_none, SUT_basic, or SUT_advanced and controls the automatic generation of shaders.

It is initialized from the config variable of the same name, but it can be subsequently adjusted.

Definition at line 104 of file shader.I.

const string Shader::get_text ( const ShaderType &  type = ST_none) const [inline]

Return the Shader's text for the given shader type.

Definition at line 49 of file shader.I.

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 52 of file typedObject.I.

References TypeHandle::get_index().

WeakReferenceList * ReferenceCount::get_weak_list ( ) const [inline, inherited]

Returns the WeakReferenceList associated with this ReferenceCount object.

If there has never been a WeakReferenceList associated with this object, creates one now.

Definition at line 307 of file referenceCount.I.

Referenced by ReferenceCount::weak_ref().

bool ReferenceCount::has_weak_list ( ) const [inline, inherited]

Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.

In general, this will be true if there was ever a WeakPointerTo created for this object (even if there is not any for it now).

Definition at line 294 of file referenceCount.I.

Referenced by ReferenceCount::weak_unref().

bool Shader::have_shader_utilization ( ) [inline, static]

If true, then get_shader_utilization has been set using set_shader_utilization.

If false, then get_shader_utilization simply returns the config variable of the same name.

Definition at line 121 of file shader.I.

static void Shader::init_type ( ) [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 TypedReferenceCount.

Definition at line 382 of file shader.h.

References TypedReferenceCount::init_type().

bool TypedObject::is_exact_type ( TypeHandle  handle) const [inline, inherited]
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 63 of file typedObject.I.

References TypeHandle::is_derived_from().

Referenced by EggSliderData::add_back_pointer(), EggJointData::add_back_pointer(), CIntervalManager::add_c_interval(), XFileNode::add_child(), CollisionTraverser::add_collider(), CollisionHandlerPhysical::add_collider(), EggXfmSAnim::add_data(), CharacterJointBundle::add_node(), NonlinearImager::add_screen(), EggGroupNode::apply_first_attribute(), EggGroupNode::apply_last_attribute(), DeferredNodeProperty::apply_to_node(), RecorderController::begin_playback(), NodePath::clear_clip_plane(), EggGroupNode::clear_connected_shading(), NodePath::clear_light(), EggBase::convert_paths(), NodePath::decode_from_bam_stream(), VrpnClient::disconnect_device(), PhysicsManager::do_physics(), GraphicsStateGuardian::fetch_specified_part(), EggRenderState::fill_state(), AnimBundleNode::find_anim_bundle(), EggGroupNode::find_coordsys_entry(), XFile::find_data_object(), Character::find_joint(), EggGroupNode::find_materials(), Character::find_slider(), XFile::find_template(), EggGroupNode::find_textures(), EggMaterialCollection::find_used_materials(), EggTextureCollection::find_used_textures(), EggGroupNode::force_filenames(), EggJointData::force_initial_rest_frame(), WindowFramework::get_aspect_2d(), EggPoolUniquifier::get_category(), EggGroupUniquifier::get_category(), EggGroupNode::get_connected_shading(), PandaFramework::get_mouse(), FactoryParams::get_param_of_type(), EggGroupNode::has_absolute_pathnames(), NodePath::has_clip_plane(), NodePath::has_clip_plane_off(), NodePath::has_light(), PandaFramework::hide_collision_solids(), x11GraphicsWindow::open_window(), eglGraphicsWindow::open_window(), EggNode::parse_egg(), CharacterMaker::part_to_node(), EggGroupNode::post_apply_flat_attribute(), EggBinner::prepare_node(), PortalClipper::prepare_portal(), NodePath::project_texture(), EggMatrixTablePointer::quantize_channels(), ParametricCurveCollection::r_add_curves(), SceneGraphReducer::r_collect_vertex_data(), EggGroupNode::r_load_externals(), EggGroupNode::rebuild_vertex_pools(), EggGroupNode::recompute_polygon_normals(), EggGroupNode::remove_invalid_primitives(), EggGroupNode::remove_unused_vertices(), EggLoader::reparent_decals(), EggMaterialCollection::replace_materials(), EggTextureCollection::replace_textures(), EggGroupNode::resolve_filenames(), EggGroupNode::reverse_vertex_ordering(), NodePath::set_clip_plane(), NodePath::set_clip_plane_off(), NodePath::set_light(), ProjectionScreen::set_projector(), NonlinearImager::set_source_camera(), EggXfmSAnim::set_value(), NonlinearImager::set_viewer_camera(), PandaFramework::show_collision_solids(), BamCache::store(), XFileToEggConverter::strip_nodes(), EggGroupNode::strip_normals(), DataGraphTraverser::traverse(), DataGraphTraverser::traverse_below(), EggGroupNode::triangulate_polygons(), EggGroupNode::unify_attributes(), EggNameUniquifier::uniquify(), NodeCullCallbackData::upcall(), PhysicsCollisionHandler::validate_target(), EggXfmSAnim::write(), EggGroup::write(), EggToDXFLayer::write_3d_face(), and EggToDXFLayer::write_entities().

void ReferenceCount::local_object ( ) [inline, inherited]

This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.

This allows the object to be passed to functions that will increment and decrement the object's reference count temporarily, and it will prevent the object from being deleted (inappropriately), when the reference count returns to zero. It actually achieves this by setting a large positive value in the reference count field.

Definition at line 276 of file referenceCount.I.

Referenced by PGTop::cull_callback(), BoundingSphere::extend_by_hexahedron(), AsyncTaskManager::find_task(), AsyncTaskManager::find_tasks(), and AsyncTaskManager::find_tasks_matching().

void ReferenceCount::ref ( ) const [inline, inherited]

Explicitly increments the reference count.

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

Definition at line 179 of file referenceCount.I.

References ReferenceCount::test_ref_count_integrity().

Referenced by CachedTypedWritableReferenceCount::cache_ref(), TypedWritable::decode_raw_from_bam_stream(), NodeCachedReferenceCount::node_ref(), NodeReferenceCount::node_ref(), BamCacheRecord::set_data(), CullableObject::set_draw_callback(), and ModelRoot::set_reference().

void Shader::set_shader_utilization ( ShaderUtilization  utl) [inline, static]

Set this flag to SUT_none, SUT_basic, or SUT_advanced to limit panda's automatic shader generation facilities.

Definition at line 90 of file shader.I.

bool ReferenceCount::test_ref_count_integrity ( ) const [inline, inherited]
bool ReferenceCount::test_ref_count_nonzero ( ) const [inline, inherited]

Does some easy checks to make sure that the reference count isn't zero, or completely bogus.

Returns true if ok, false otherwise.

Definition at line 252 of file referenceCount.I.

References ReferenceCount::do_test_ref_count_nonzero().

Referenced by CopyOnWritePointer::test_ref_count_nonzero().

bool ReferenceCount::unref ( ) const [inline, virtual, inherited]

Explicitly decrements the reference count.

Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic.) However, see the helper function unref_delete().

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

The return value is true if the new reference count is nonzero, false if it is zero.

Reimplemented in GeomVertexArrayFormat, GeomVertexFormat, InternalName, RenderAttrib, RenderEffects, RenderState, and TransformState.

Definition at line 214 of file referenceCount.I.

References ReferenceCount::test_ref_count_integrity().

Referenced by CachedTypedWritableReferenceCount::cache_unref(), TypedWritable::decode_raw_from_bam_stream(), RenderEffect::finalize(), NodeCachedReferenceCount::node_unref(), NodeReferenceCount::node_unref(), TransformState::unref(), RenderState::unref(), RenderEffects::unref(), RenderAttrib::unref(), InternalName::unref(), GeomVertexFormat::unref(), and GeomVertexArrayFormat::unref().

void ReferenceCount::weak_ref ( WeakPointerToVoid ptv) [inline, inherited]

Adds the indicated PointerToVoid as a weak reference to this object.

Definition at line 321 of file referenceCount.I.

References WeakReferenceList::add_reference(), and ReferenceCount::get_weak_list().

void ReferenceCount::weak_unref ( WeakPointerToVoid ptv) [inline, inherited]

Removes the indicated PointerToVoid as a weak reference to this object.

It must have previously been added via a call to weak_ref().

Definition at line 334 of file referenceCount.I.

References WeakReferenceList::clear_reference(), and ReferenceCount::has_weak_list().


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