Inheritance diagram for Shader:

Classes
struct	ShaderArgId

struct	ShaderArgInfo

class	ShaderCaps

class	ShaderFile

struct	ShaderMatSpec

struct	ShaderPtrData

struct	ShaderPtrSpec

struct	ShaderTexSpec

struct	ShaderVarSpec

Public Types
enum	AutoShaderBit { bit_AutoShaderNormal = 0, bit_AutoShaderGlow = 1, bit_AutoShaderGloss = 2, bit_AutoShaderRamp = 3, bit_AutoShaderShadow = 4 }

enum	AutoShaderSwitch { AS_normal = 0x01, AS_glow = 0x02, AS_gloss = 0x04, AS_ramp = 0x08, AS_shadow = 0x10 }

enum	ShaderArgClass { SAC_scalar, SAC_vector, SAC_matrix, SAC_sampler, SAC_array, SAC_unknown }

enum	ShaderArgDir { SAD_in, SAD_out, SAD_inout, SAD_unknown }

enum	ShaderArgType { SAT_scalar, SAT_vec1, SAT_vec2, SAT_vec3, SAT_vec4, SAT_mat1x1, SAT_mat1x2, SAT_mat1x3, SAT_mat1x4, SAT_mat2x1, SAT_mat2x2, SAT_mat2x3, SAT_mat2x4, SAT_mat3x1, SAT_mat3x2, SAT_mat3x3, SAT_mat3x4, SAT_mat4x1, SAT_mat4x2, SAT_mat4x3, SAT_mat4x4, SAT_sampler1d, SAT_sampler2d, SAT_sampler3d, SAT_sampler2d_array, SAT_sampler_cube, SAT_sampler_buffer, SAT_sampler_cube_array, SAT_unknown }

enum	ShaderBug { SBUG_ati_draw_buffers }

enum	ShaderLanguage { SL_none, SL_Cg, SL_GLSL, SL_HLSL, SL_SPIR_V }

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_i, 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_attr_fog, SMO_attr_fogcolor, SMO_frame_number, SMO_frame_time, SMO_frame_delta, SMO_mat_constant_x_attrib, SMO_vec_constant_x_attrib, SMO_light_ambient, SMO_light_source_i_attrib, SMO_light_product_i_ambient, SMO_light_product_i_diffuse, SMO_light_product_i_specular, SMO_apiview_clipplane_i, SMO_model_to_apiview, SMO_apiview_to_model, SMO_apiview_to_apiclip, SMO_apiclip_to_apiview, SMO_inv_texmat_i, SMO_attr_material2, SMO_tex_is_alpha_i, SMO_transform_i, SMO_slider_i, SMO_light_source_i_packed, SMO_texscale_i, SMO_texcolor_i, 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, SMP_upper3x3, SMP_transpose3x3, SMP_cell15, SMP_cell14, SMP_cell13 }

enum	ShaderPtrType { SPT_float, SPT_double, SPT_int, SPT_uint, SPT_unknown }

enum	ShaderStateDep { SSD_NONE = 0x000, SSD_general = 0x001, SSD_transform = 0x2002, SSD_color = 0x004, SSD_colorscale = 0x008, SSD_material = 0x010, SSD_shaderinputs = 0x020, SSD_fog = 0x040, SSD_light = 0x080, SSD_clip_planes = 0x100, SSD_tex_matrix = 0x200, SSD_frame = 0x400, SSD_projection = 0x800, SSD_texture = 0x1000, SSD_view_transform = 0x2000 }

enum	ShaderTexInput { STO_INVALID, STO_named_input, STO_named_stage, STO_stage_i, STO_light_i_shadow_map }

enum	ShaderType { ST_none = 0, ST_vertex, ST_fragment, ST_geometry, ST_tess_control, ST_tess_evaluation, ST_compute, ST_COUNT }

Public Member Functions
	~Shader ()
	Delete the compiled code, if it exists. More...

void	clear_parameters ()

bool	compile_parameter (ShaderArgInfo &p, int *arg_dim)
	Analyzes a parameter and decides how to bind the parameter to some part of panda's internal state. More...

int	cp_dependency (ShaderMatInput inp)
	Given ShaderMatInput, returns an indication of what part or parts of the state_and_transform the ShaderMatInput depends upon. More...

bool	cp_errchk_parameter_float (ShaderArgInfo &arg, int lo, int hi)
	Make sure the provided parameter has a floating point type. More...

bool	cp_errchk_parameter_in (ShaderArgInfo &arg)
	Make sure the provided parameter has the 'in' direction. More...

bool	cp_errchk_parameter_ptr (ShaderArgInfo &p)

bool	cp_errchk_parameter_sampler (ShaderArgInfo &arg)
	Make sure the provided parameter has a texture type. More...

bool	cp_errchk_parameter_uniform (ShaderArgInfo &arg)
	Make sure the provided parameter has the correct variance. More...

bool	cp_errchk_parameter_varying (ShaderArgInfo &arg)
	Make sure the provided parameter has the correct variance. More...

bool	cp_errchk_parameter_words (ShaderArgInfo &arg, int len)
	Make sure the provided parameter contains the specified number of words. More...

void	cp_optimize_mat_spec (ShaderMatSpec &spec)
	Analyzes a ShaderMatSpec and decides what it should use its cache for. More...

bool	cp_parse_coord_sys (ShaderArgInfo &arg, vector_string &pieces, int &next, ShaderMatSpec &spec, bool fromflag)
	Convert a single-word coordinate system name into a PART/ARG of a ShaderMatSpec. More...

bool	cp_parse_delimiter (ShaderArgInfo &arg, vector_string &pieces, int &next)
	Pop a delimiter ('to' or 'rel') from the word list. More...

bool	cp_parse_eol (ShaderArgInfo &arg, vector_string &pieces, int &next)
	Make sure the next thing on the word list is EOL. More...

std::string	cp_parse_non_delimiter (vector_string &pieces, int &next)
	Pop a non-delimiter word from the word list. More...

void	cp_report_error (ShaderArgInfo &arg, const std::string &msg)
	Generate an error message including a description of the specified parameter. More...

virtual TypeHandle	force_init_type ()

bool	get_cache_compiled_shader () const
	Returns the setting of the cache_compiled_shader flag. More...

bool	get_compiled (unsigned int &format, std::string &binary) const
	Called by the back-end to retrieve compiled data. More...

bool	get_error_flag () const
	Returns true if the shader contains a compile-time error. More...

Filename	get_filename (ShaderType type=ST_none) const
	Return the Shader's filename for the given shader type. More...

Filename	get_filename_from_index (int index, ShaderType type) const
	Returns the filename of the included shader with the given source file index (as recorded in the #line statement in r_preprocess_source). More...

const Filename &	get_fullpath () const
	Returns the fullpath that has been set. More...

ShaderLanguage	get_language () const
	Returns the shader language in which this shader was written. More...

const std::string &	get_text (ShaderType type=ST_none) const
	Return the Shader's text for the given shader type. More...

virtual TypeHandle	get_type () const

bool	has_fullpath () const
	Returns true if the fullpath has been set and is available. More...

bool	is_prepared (PreparedGraphicsObjects *prepared_objects) const
	Returns true if the shader has already been prepared or enqueued for preparation on the indicated GSG, false otherwise. More...

bool	parse_eof ()
	Returns true if the parse pointer is at the end of the shader. More...

void	parse_init ()
	Set a 'parse pointer' to the beginning of the shader. More...

void	parse_line (std::string &result, bool rt, bool lt)
	Parse a line of text. More...

void	parse_rest (std::string &result)
	Returns the rest of the text from the current parse location. More...

void	parse_upto (std::string &result, std::string pattern, bool include)
	Parse lines until you read a line that matches the specified pattern. More...

ShaderContext *	prepare_now (PreparedGraphicsObjects prepared_objects, GraphicsStateGuardianBase gsg)
	Creates a context for the shader on the particular GSG, if it does not already exist. More...

	PT (AsyncFuture) prepare(PreparedGraphicsObjects *prepared_objects)

bool	release (PreparedGraphicsObjects *prepared_objects)
	Frees the texture context only on the indicated object, if it exists there. More...

int	release_all ()
	Frees the context allocated on all objects for which the texture has been declared. More...

void	set_cache_compiled_shader (bool flag)
	Sets the cache_compiled_shader flag. More...

void	set_compiled (unsigned int format, const char *data, size_t length)
	Called by the back-end when the shader has compiled data available. More...

void	set_filename (ShaderType type, const Filename &filename)
	Sets the Shader's filename for the given shader type. More...

virtual void	write_datagram (BamWriter *manager, Datagram &dg)
	Writes the contents of this object to the datagram for shipping out to a Bam file. More...

Public Member Functions inherited from TypedWritableReferenceCount
	TypedWritableReferenceCount (const TypedWritableReferenceCount &copy)

virtual ReferenceCount *	as_reference_count ()
	Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. More...

void	operator= (const TypedWritableReferenceCount &copy)

Public Member Functions inherited from TypedWritable
	TypedWritable (const TypedWritable &copy)

virtual int	complete_pointers (TypedWritable *p_list, BamReader manager)
	Receives an array of pointers, one for each time manager->read_pointer() was called in fillin(). More...

vector_uchar	encode_to_bam_stream () const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More...

bool	encode_to_bam_stream (vector_uchar &data, BamWriter *writer=nullptr) const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More...

virtual void	finalize (BamReader *manager)
	Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed. More...

UpdateSeq	get_bam_modified () const
	Returns the current bam_modified counter. More...

void	mark_bam_modified ()
	Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More...

void	operator= (const TypedWritable &copy)

virtual bool	require_fully_complete () const
	Some objects require all of their nested pointers to have been completed before the objects themselves can be completed. More...

virtual void	update_bam_nested (BamWriter *manager)
	Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates. More...

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

Public Member Functions inherited from ReferenceCount
int	get_ref_count () const

WeakReferenceList *	get_weak_list () const
	Returns the WeakReferenceList associated with this ReferenceCount object. More...

bool	has_weak_list () const
	Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More...

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

void	ref () const
	Explicitly increments the reference count. More...

bool	ref_if_nonzero () const
	Atomically increases the reference count of this object if it is not zero. More...

bool	test_ref_count_integrity () const
	Does some easy checks to make sure that the reference count isn't completely bogus. More...

bool	test_ref_count_nonzero () const
	Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More...

virtual bool	unref () const
	Explicitly decrements the reference count. More...

WeakReferenceList *	weak_ref ()
	Adds the indicated PointerToVoid as a weak reference to this object. More...

void	weak_unref ()
	Removes the indicated PointerToVoid as a weak reference to this object. More...

Static Public Member Functions
static TypeHandle	get_class_type ()

static void	init_type ()

static	PT (Shader) load(const Filename &file

static static PT(Shader) make(std	PT (Shader) load(ShaderLanguage lang

static	PT (Shader) load_compute(ShaderLanguage lang

static	PT (Shader) make(ShaderLanguage lang

static	PT (Shader) make_compute(ShaderLanguage lang

static void	register_with_read_factory ()
	Tells the BamReader how to create objects of type Shader. More...

static void	set_default_caps (const ShaderCaps &caps)
	Called by the graphics back-end to specify the caps with which we will likely want to be compiling our shaders. More...

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

static void	init_type ()

static	PT (TypedWritableReferenceCount) decode_from_bam_stream(vector_uchar data

Static Public Member Functions inherited from TypedWritable
static bool	decode_raw_from_bam_stream (TypedWritable &ptr, ReferenceCount &ref_ptr, vector_uchar data, BamReader *reader=nullptr)
	Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts the single object on those bytes. More...

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...

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

static void	init_type ()

Public Attributes
bool	_error_flag

int	_mat_deps

epvector< ShaderMatSpec >	_mat_spec

pvector< ShaderPtrSpec >	_ptr_spec

pvector< ShaderTexSpec >	_tex_spec

ShaderFile	_text

pvector< ShaderVarSpec >	_var_spec

static std::string	body

static const Filename &	fn

static static PT(Shader) make(std const Filename const Filename &	fragment

static std::string std::string	fragment

static static PT(Shader) make(std const Filename const Filename const Filename &	geometry = ""

static std::string std::string std::string	geometry = ""

static ShaderLanguage	lang = SL_none)

static static PT(Shader) make(std const Filename const Filename const Filename const Filename &	tess_control = ""

static std::string std::string std::string std::string	tess_control = ""

static static PT(Shader) make(std const Filename const Filename const Filename const Filename const Filename &	tess_evaluation = "")

static std::string std::string std::string std::string std::string	tess_evaluation = "")

static static PT(Shader) make(std const Filename &	vertex

static std::string	vertex

Public Attributes inherited from TypedWritableReferenceCount
static BamReader *	reader = nullptr)

Public Attributes inherited from TypedObject
	get_type

Public Attributes inherited from ReferenceCount
	get_ref_count
	Returns the current reference count. More...

Friends
class	PreparedGraphicsObjects

class	ShaderContext

Additional Inherited Members
Static Public Attributes inherited from TypedWritable
static TypedWritable *const	Null = nullptr

Detailed Description

Definition at line 49 of file shader.h.

Constructor & Destructor Documentation

◆ ~Shader()

Shader::~Shader ( )

Delete the compiled code, if it exists.

Definition at line 3231 of file shader.cxx.

References release_all().

Member Function Documentation

◆ compile_parameter()

bool Shader::compile_parameter	(	ShaderArgInfo &	p,
		int *	arg_dim
	)

Analyzes a parameter and decides how to bind the parameter to some part of panda's internal state.

Updates one of the bind arrays to cause the binding to occur.

If there is an error, this routine will append an error message onto the error messages.

Definition at line 668 of file shader.cxx.

References cp_errchk_parameter_float(), cp_errchk_parameter_in(), cp_errchk_parameter_varying(), and tokenize().

◆ cp_dependency()

int Shader::cp_dependency ( ShaderMatInput inp )

Given ShaderMatInput, returns an indication of what part or parts of the state_and_transform the ShaderMatInput depends upon.

Definition at line 377 of file shader.cxx.

Referenced by cp_optimize_mat_spec().

◆ cp_errchk_parameter_float()

bool Shader::cp_errchk_parameter_float	(	ShaderArgInfo &	p,
		int	lo,
		int	hi
	)

Make sure the provided parameter has a floating point type.

If not, print error message and return false.

Definition at line 180 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

◆ cp_errchk_parameter_in()

bool Shader::cp_errchk_parameter_in ( ShaderArgInfo & p )

Make sure the provided parameter has the 'in' direction.

If not, print error message and return false.

Definition at line 138 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

◆ cp_errchk_parameter_sampler()

bool Shader::cp_errchk_parameter_sampler ( ShaderArgInfo & p )

Make sure the provided parameter has a texture type.

If not, print error message and return false.

Definition at line 231 of file shader.cxx.

References cp_report_error().

◆ cp_errchk_parameter_uniform()

bool Shader::cp_errchk_parameter_uniform ( ShaderArgInfo & p )

Make sure the provided parameter has the correct variance.

If not, print error message and return false.

Definition at line 166 of file shader.cxx.

References cp_report_error().

◆ cp_errchk_parameter_varying()

bool Shader::cp_errchk_parameter_varying ( ShaderArgInfo & p )

Make sure the provided parameter has the correct variance.

If not, print error message and return false.

Definition at line 152 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

◆ cp_errchk_parameter_words()

bool Shader::cp_errchk_parameter_words	(	ShaderArgInfo &	p,
		int	len
	)

Make sure the provided parameter contains the specified number of words.

If not, print error message and return false.

Definition at line 122 of file shader.cxx.

References cp_report_error(), and tokenize().

◆ cp_optimize_mat_spec()

void Shader::cp_optimize_mat_spec ( ShaderMatSpec & spec )

Analyzes a ShaderMatSpec and decides what it should use its cache for.

It can cache the results of any one opcode, or, it can cache the entire result. This routine needs to be smart enough to know which data items can be correctly cached, and which cannot.

Definition at line 508 of file shader.cxx.

References cp_dependency().

◆ cp_parse_coord_sys()

bool Shader::cp_parse_coord_sys	(	ShaderArgInfo &	arg,
		vector_string &	pieces,
		int &	next,
		ShaderMatSpec &	spec,
		bool	fromflag
	)

Convert a single-word coordinate system name into a PART/ARG of a ShaderMatSpec.

Definition at line 290 of file shader.cxx.

References cp_parse_non_delimiter(), and cp_report_error().

◆ cp_parse_delimiter()

bool Shader::cp_parse_delimiter	(	ShaderArgInfo &	arg,
		vector_string &	pieces,
		int &	next
	)

Pop a delimiter ('to' or 'rel') from the word list.

Definition at line 262 of file shader.cxx.

References cp_report_error().

◆ cp_parse_eol()

bool Shader::cp_parse_eol	(	ShaderArgInfo &	arg,
		vector_string &	pieces,
		int &	next
	)

Make sure the next thing on the word list is EOL.

Definition at line 250 of file shader.cxx.

References cp_report_error().

◆ cp_parse_non_delimiter()

string Shader::cp_parse_non_delimiter	(	vector_string &	words,
		int &	next
	)

Pop a non-delimiter word from the word list.

Delimiters are 'to' and 'rel.'

Definition at line 276 of file shader.cxx.

Referenced by cp_parse_coord_sys().

◆ cp_report_error()

void Shader::cp_report_error	(	ShaderArgInfo &	arg,
		const std::string &	msg
	)

Generate an error message including a description of the specified parameter.

Definition at line 51 of file shader.cxx.

References NotifyCategory::error(), and get_filename().

Referenced by cp_errchk_parameter_float(), cp_errchk_parameter_in(), cp_errchk_parameter_sampler(), cp_errchk_parameter_uniform(), cp_errchk_parameter_varying(), cp_errchk_parameter_words(), cp_parse_coord_sys(), cp_parse_delimiter(), and cp_parse_eol().

◆ get_cache_compiled_shader()

bool Shader::get_cache_compiled_shader ( ) const

inline

Returns the setting of the cache_compiled_shader flag.

See set_cache_compiled_shader().

Definition at line 159 of file shader.I.

◆ get_compiled()

bool Shader::get_compiled	(	unsigned int &	format,
		std::string &	binary
	)		const

Called by the back-end to retrieve compiled data.

Definition at line 1586 of file shader.cxx.

◆ get_error_flag()

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 124 of file shader.I.

◆ get_filename()

Filename Shader::get_filename ( ShaderType type = ST_none ) const

inline

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

Definition at line 20 of file shader.I.

Referenced by cp_report_error(), DXShaderContext9::DXShaderContext9(), and get_filename_from_index().

◆ get_filename_from_index()

Filename Shader::get_filename_from_index	(	int	index,
		ShaderType	type
	)		const

Returns the filename of the included shader with the given source file index (as recorded in the #line statement in r_preprocess_source).

We use this to associate error messages with included files.

Definition at line 3249 of file shader.cxx.

References get_filename().

◆ get_fullpath()

const Filename & Shader::get_fullpath ( ) const

inline

Returns the fullpath that has been set.

This is the full path to the file as it was found along the model-path.

Definition at line 150 of file shader.I.

◆ get_language()

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.

Referenced by DXGraphicsStateGuardian9::prepare_shader().

◆ get_text()

const std::string & Shader::get_text ( ShaderType type = ST_none ) const

inline

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

Definition at line 89 of file shader.I.

◆ has_fullpath()

bool Shader::has_fullpath ( ) const

inline

Returns true if the fullpath has been set and is available.

See set_fullpath().

Definition at line 141 of file shader.I.

◆ is_prepared()

bool Shader::is_prepared ( PreparedGraphicsObjects * prepared_objects ) const

Returns true if the shader has already been prepared or enqueued for preparation on the indicated GSG, false otherwise.

Definition at line 3660 of file shader.cxx.

References PreparedGraphicsObjects::is_shader_queued().

Referenced by PreparedGraphicsObjects::is_shader_prepared().

◆ parse_eof()

bool Shader::parse_eof ( )

Returns true if the parse pointer is at the end of the shader.

Definition at line 3637 of file shader.cxx.

◆ parse_init()

void Shader::parse_init ( )

Set a 'parse pointer' to the beginning of the shader.

Definition at line 3570 of file shader.cxx.

◆ parse_line()

void Shader::parse_line	(	std::string &	result,
		bool	lt,
		bool	rt
	)

Parse a line of text.

If 'lt' is true, trim blanks from the left end of the line. If 'rt' is true, trim blanks from the right end (the newline is always trimmed).

Definition at line 3580 of file shader.cxx.

◆ parse_rest()

void Shader::parse_rest ( std::string & result )

Returns the rest of the text from the current parse location.

Definition at line 3628 of file shader.cxx.

◆ parse_upto()

void Shader::parse_upto	(	std::string &	result,
		std::string	pattern,
		bool	include
	)

Parse lines until you read a line that matches the specified pattern.

Returns all the preceding lines, and if the include flag is set, returns the final line as well.

Definition at line 3606 of file shader.cxx.

◆ prepare_now()

ShaderContext * Shader::prepare_now	(	PreparedGraphicsObjects *	prepared_objects,
		GraphicsStateGuardianBase *	gsg
	)

Creates a context for the shader on the particular GSG, if it does not already exist.

Returns the new (or old) ShaderContext. This assumes that the GraphicsStateGuardian is the currently active rendering context and that it is ready to accept new textures. If this is not necessarily the case, you should use prepare() instead.

Normally, this is not called directly except by the GraphicsStateGuardian; a shader does not need to be explicitly prepared by the user before it may be rendered.

Definition at line 3703 of file shader.cxx.

References PreparedGraphicsObjects::prepare_shader_now().

Referenced by PreparedGraphicsObjects::begin_frame().

◆ register_with_read_factory()

void Shader::register_with_read_factory ( )

static

Tells the BamReader how to create objects of type Shader.

Definition at line 3786 of file shader.cxx.

References BamReader::get_factory(), and Factory< Type >::register_factory().

◆ release()

bool Shader::release ( PreparedGraphicsObjects * prepared_objects )

Frees the texture context only on the indicated object, if it exists there.

Returns true if it was released, false if it had not been prepared.

Definition at line 3674 of file shader.cxx.

References PreparedGraphicsObjects::dequeue_shader(), and PreparedGraphicsObjects::release_shader().

◆ release_all()

int Shader::release_all ( )

Frees the context allocated on all objects for which the texture has been declared.

Returns the number of contexts which have been freed.

Definition at line 3741 of file shader.cxx.

References PreparedGraphicsObjects::release_shader().

Referenced by ~Shader().

◆ set_cache_compiled_shader()

void Shader::set_cache_compiled_shader ( bool flag )

inline

Sets the cache_compiled_shader flag.

When this is set, the next time the Shader is loaded on a GSG, it will automatically extract the compiled shader from the GSG and save it to the global BamCache.

This is used to store compiled shaders in the BamCache. This flag should not be set explicitly; it is set automatically by the ShaderPool when model-cache-compiled-shaders is set true.

Definition at line 173 of file shader.I.

◆ set_compiled()

void Shader::set_compiled	(	unsigned int	format,
		const char *	data,
		size_t	length
	)

Called by the back-end when the shader has compiled data available.

Definition at line 1569 of file shader.cxx.

◆ set_default_caps()

void Shader::set_default_caps ( const ShaderCaps & caps )

static

Called by the graphics back-end to specify the caps with which we will likely want to be compiling our shaders.

Definition at line 1597 of file shader.cxx.

◆ set_filename()

void Shader::set_filename	(	ShaderType	type,
		const Filename &	filename
	)

inline

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

Useful for associating a shader created with Shader.make with a name for diagnostics.

Definition at line 58 of file shader.I.

◆ write_datagram()

void Shader::write_datagram	(	BamWriter *	manager,
		Datagram &	dg
	)

virtual

Writes the contents of this object to the datagram for shipping out to a Bam file.

Reimplemented from TypedWritable.

Definition at line 3795 of file shader.cxx.

References Datagram::add_bool(), Datagram::add_string(), Datagram::add_uint32(), Datagram::add_uint8(), and Shader::ShaderFile::write_datagram().

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

panda/src/gobj/shader.h
panda/src/gobj/shader.cxx
panda/src/gobj/shader.I

Classes

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~Shader()

Member Function Documentation

◆ compile_parameter()

◆ cp_dependency()

◆ cp_errchk_parameter_float()

◆ cp_errchk_parameter_in()

◆ cp_errchk_parameter_sampler()

◆ cp_errchk_parameter_uniform()

◆ cp_errchk_parameter_varying()

◆ cp_errchk_parameter_words()

◆ cp_optimize_mat_spec()

◆ cp_parse_coord_sys()

◆ cp_parse_delimiter()

◆ cp_parse_eol()

◆ cp_parse_non_delimiter()

◆ cp_report_error()

◆ get_cache_compiled_shader()

◆ get_compiled()

◆ get_error_flag()

◆ get_filename()

◆ get_filename_from_index()

◆ get_fullpath()

◆ get_language()

◆ get_text()

◆ has_fullpath()

◆ is_prepared()

◆ parse_eof()

◆ parse_init()

◆ parse_line()

◆ parse_rest()

◆ parse_upto()

◆ prepare_now()

◆ register_with_read_factory()

◆ release()

◆ release_all()

◆ set_cache_compiled_shader()

◆ set_compiled()

◆ set_default_caps()

◆ set_filename()

◆ write_datagram()