gegl-0.4

Description:

GEGL (Generic Graphics Library) is a data flow based image processing framework, providing floating point processing and non-destructive image processing capabilities to GNU Image Manipulation Program and other projects (imgflo, GNOME Photos, gcut, iconographer, …)

Home: http://www.gegl.org/
Devhelp-Package download

Content:

Namespaces:

Gegl

Interfaces:

Metadata

Classes:

Delegates:

public delegate float LookupFunction (float value, void* data)
public delegate void NodeFunction (PathItem node)
public delegate void ParallelDistributeAreaFunc (Rectangle area)
Specifies the type of function passed to parallel_distribute_area.
public delegate void ParallelDistributeFunc (int i, int n)
Specifies the type of function passed to parallel_distribute.
public delegate void ParallelDistributeRangeFunc (size_t offset, size_t size)
Specifies the type of function passed to parallel_distribute_range.
public delegate void SamplerGetFun (Sampler self, double x, double y, BufferMatrix2 scale, void* output, AbyssPolicy repeat_mode)
public delegate void TileCallback (Tile tile)
public delegate void* TileSourceCommand (TileSource gegl_tile_source, TileCommand command, int x, int y, int z, void* data)

Methods:

public void apply_op (Buffer buffer, string operation_name, ...)
Apply the operation to buffer, overwritting the contents of buffer.
public unowned Object? babl_variant (Object format, BablVariant variant)
public void cl_disable ()
Disable OpenCL
public bool cl_init () throws Error
Initialize and enable OpenCL, calling this function again will re-enable OpenCL if it has been disabled.
public bool cl_is_accelerated ()
Check if OpenCL is enabled.
public unowned Config config ()
Returns a GeglConfig object with properties that can be manipulated to control GEGLs behavior.
public void create_chain (string ops, Node op_start, Node op_end, double time, int rel_dim, string path_root) throws Error
Create a node chain from an unparsed commandline string.
public void create_chain_argv (string ops, Node op_start, Node op_end, double time, int rel_dim, string path_root) throws Error
Create a node chain from argv style list of op data.
public void exit ()
Call this function when you're done using GEGL.
public Buffer filter_op (Buffer source_buffer, string operation_name, ...)
Apply the operation to source_buffer, returning the result in a new buffer.
public Value? format (string format_name)
Returns a value sutable to pass to the GeglBuffer constructor or any other property that expects a Babl format.
public unowned string? format_get_name (Value format)
public void get_version (out int major, out int minor, out int micro)
This function fetches the version of the GEGL library being used by the running process.
public void graph_dump_outputs (Node node)
Dump the bounds and format of each node in the graph to stdout.
public void graph_dump_request (Node node, Rectangle roi)
Dump the region that will be rendered for each node to fulfill the request.
public bool has_operation (string operation_type)
public void init (ref unowned string[]? argv)
Call this function before using any other GEGL functions.
public bool is_main_thread ()
public (unowned string)[] list_operations ()
public void load_module_directory (string path)
Load all gegl modules found in the given directory.
public void parallel_distribute (int max_n, ParallelDistributeFunc func)
Distributes the execution of a function across multiple threads, by calling it with a different index on each thread.
public void parallel_distribute_area (Rectangle area, double thread_cost, SplitStrategy split_strategy, ParallelDistributeAreaFunc func)
Distributes the processing of a planar data-structure across multiple threads, by calling the given function with different sub-areas on different threads.
public void parallel_distribute_range (size_t size, double thread_cost, ParallelDistributeRangeFunc func)
Distributes the processing of a linear data-structure across multiple threads, by calling the given function with different sub-ranges on different threads.
public ParamSpec param_spec_audio_fragment (string name, string nick, string blurb, ParamFlags flags)
Creates a new ParamSpec instance specifying a AudioFragment property.
public ParamSpec param_spec_color (string name, string nick, string blurb, Color default_color, ParamFlags flags)
Creates a new ParamSpec instance specifying a Color property.
public ParamSpec param_spec_color_from_string (string name, string nick, string blurb, string default_color_string, ParamFlags flags)
Creates a new ParamSpec instance specifying a Color property.
public unowned Color param_spec_color_get_default (ParamSpec self)
Get the default color value of the param spec
public ParamSpec param_spec_curve (string name, string nick, string blurb, Curve default_curve, ParamFlags flags)
Creates a new ParamSpec instance specifying a Curve property.
public ParamSpec param_spec_double (string name, string nick, string blurb, double minimum, double maximum, double default_value, double ui_minimum, double ui_maximum, double ui_gamma, ParamFlags flags)
Creates a new ParamSpecDouble instance.
public ParamSpec param_spec_enum (string name, string nick, string blurb, Type enum_type, int default_value, ParamFlags flags)
Creates a new ParamSpecEnum instance.
public ParamSpec param_spec_file_path (string name, string nick, string blurb, bool no_validate, bool null_ok, string default_value, ParamFlags flags)
Creates a new ParamSpecFilePath instance.
public unowned string param_spec_get_property_key (ParamSpec pspec, string key_name)
public ParamSpec param_spec_int (string name, string nick, string blurb, int minimum, int maximum, int default_value, int ui_minimum, int ui_maximum, double ui_gamma, ParamFlags flags)
Creates a new ParamSpecInt instance.
public ParamSpec param_spec_path (string name, string nick, string blurb, Path default_path, ParamFlags flags)
Creates a new ParamSpec instance specifying a Path property.
public ParamSpec param_spec_seed (string name, string nick, string blurb, ParamFlags flags)
Creates a new ParamSpecSeed instance specifying an integer random seed.
public void param_spec_set_property_key (ParamSpec pspec, string key_name, string value)
public ParamSpec param_spec_string (string name, string nick, string blurb, bool no_validate, bool null_ok, string default_value, ParamFlags flags)
Creates a new ParamSpecString instance.
public ParamSpec param_spec_uri (string name, string nick, string blurb, bool no_validate, bool null_ok, string default_value, ParamFlags flags)
Creates a new ParamSpecUri instance.
public Rectangle rectangle_infinite_plane ()
Returns a GeglRectangle that represents an infininte plane.
public void render_op (Buffer source_buffer, Buffer target_buffer, string operation_name, ...)
Apply the operation to source_buffer, writing the results to target_buffer.
public void reset_stats ()
Resets the cumulative data gathered by the Stats object returned by stats ().
public string serialize (Node start, Node end, string basepath, SerializeFlag serialize_flags)
public unowned Stats stats ()
Returns a GeglStats object with properties that can be read to monitor GEGL statistics.