mirror of
https://github.com/brl/mutter.git
synced 2024-11-24 09:00:42 -05:00
13a1624c10
It looks like deprecating the functions with explicit framebuffer/pipeline arguments made it to (cogl) master by mistake: https://mail.gnome.org/archives/clutter-list/2016-April/msg00008.html We now use one of them, so this is a good time to undeprecate the lot. https://gitlab.gnome.org/GNOME/mutter/merge_requests/597
536 lines
16 KiB
C
536 lines
16 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* A Low Level GPU Graphics and Utilities API
|
|
*
|
|
* Copyright (C) 2008,2009,2013 Intel Corporation.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __COGL_PATH_FUNCTIONS_H__
|
|
#define __COGL_PATH_FUNCTIONS_H__
|
|
|
|
#include <cogl/cogl-types.h>
|
|
#ifdef COGL_COMPILATION
|
|
#include "cogl-context.h"
|
|
#else
|
|
#include <cogl/cogl.h>
|
|
#endif
|
|
#include <glib-object.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/**
|
|
* cogl_path_get_gtype:
|
|
*
|
|
* Returns: a #GType that can be used with the GLib type system.
|
|
*/
|
|
GType cogl_path_get_gtype (void);
|
|
|
|
#define cogl_path_new cogl2_path_new
|
|
/**
|
|
* cogl_path_new:
|
|
*
|
|
* Creates a new, empty path object. The default fill rule is
|
|
* %COGL_PATH_FILL_RULE_EVEN_ODD.
|
|
*
|
|
* Return value: A pointer to a newly allocated #CoglPath, which can
|
|
* be freed using cogl_object_unref().
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
CoglPath *
|
|
cogl_path_new (void);
|
|
|
|
/**
|
|
* cogl_path_copy:
|
|
* @path: A #CoglPath object
|
|
*
|
|
* Returns a new copy of the path in @path. The new path has a
|
|
* reference count of 1 so you should unref it with
|
|
* cogl_object_unref() if you no longer need it.
|
|
*
|
|
* Internally the path will share the data until one of the paths is
|
|
* modified so copying paths should be relatively cheap.
|
|
*
|
|
* Return value: (transfer full): a copy of the path in @path.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
CoglPath *
|
|
cogl_path_copy (CoglPath *path);
|
|
|
|
/**
|
|
* cogl_is_path:
|
|
* @object: A #CoglObject
|
|
*
|
|
* Gets whether the given object references an existing path object.
|
|
*
|
|
* Return value: %TRUE if the object references a #CoglPath,
|
|
* %FALSE otherwise.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
gboolean
|
|
cogl_is_path (void *object);
|
|
|
|
#define cogl_path_move_to cogl2_path_move_to
|
|
/**
|
|
* cogl_path_move_to:
|
|
* @x: X coordinate of the pen location to move to.
|
|
* @y: Y coordinate of the pen location to move to.
|
|
*
|
|
* Moves the pen to the given location. If there is an existing path
|
|
* this will start a new disjoint subpath.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_move_to (CoglPath *path,
|
|
float x,
|
|
float y);
|
|
|
|
#define cogl_path_rel_move_to cogl2_path_rel_move_to
|
|
/**
|
|
* cogl_path_rel_move_to:
|
|
* @x: X offset from the current pen location to move the pen to.
|
|
* @y: Y offset from the current pen location to move the pen to.
|
|
*
|
|
* Moves the pen to the given offset relative to the current pen
|
|
* location. If there is an existing path this will start a new
|
|
* disjoint subpath.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_rel_move_to (CoglPath *path,
|
|
float x,
|
|
float y);
|
|
|
|
#define cogl_path_line_to cogl2_path_line_to
|
|
/**
|
|
* cogl_path_line_to:
|
|
* @x: X coordinate of the end line vertex
|
|
* @y: Y coordinate of the end line vertex
|
|
*
|
|
* Adds a straight line segment to the current path that ends at the
|
|
* given coordinates.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_line_to (CoglPath *path,
|
|
float x,
|
|
float y);
|
|
|
|
#define cogl_path_rel_line_to cogl2_path_rel_line_to
|
|
/**
|
|
* cogl_path_rel_line_to:
|
|
* @x: X offset from the current pen location of the end line vertex
|
|
* @y: Y offset from the current pen location of the end line vertex
|
|
*
|
|
* Adds a straight line segment to the current path that ends at the
|
|
* given coordinates relative to the current pen location.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_rel_line_to (CoglPath *path,
|
|
float x,
|
|
float y);
|
|
|
|
#define cogl_path_arc cogl2_path_arc
|
|
/**
|
|
* cogl_path_arc:
|
|
* @center_x: X coordinate of the elliptical arc center
|
|
* @center_y: Y coordinate of the elliptical arc center
|
|
* @radius_x: X radius of the elliptical arc
|
|
* @radius_y: Y radius of the elliptical arc
|
|
* @angle_1: Angle in degrees at which the arc begin
|
|
* @angle_2: Angle in degrees at which the arc ends
|
|
*
|
|
* Adds an elliptical arc segment to the current path. A straight line
|
|
* segment will link the current pen location with the first vertex
|
|
* of the arc. If you perform a move_to to the arcs start just before
|
|
* drawing it you create a free standing arc.
|
|
*
|
|
* The angles are measured in degrees where 0° is in the direction of
|
|
* the positive X axis and 90° is in the direction of the positive Y
|
|
* axis. The angle of the arc begins at @angle_1 and heads towards
|
|
* @angle_2 (so if @angle_2 is less than @angle_1 it will decrease,
|
|
* otherwise it will increase).
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_arc (CoglPath *path,
|
|
float center_x,
|
|
float center_y,
|
|
float radius_x,
|
|
float radius_y,
|
|
float angle_1,
|
|
float angle_2);
|
|
|
|
#define cogl_path_curve_to cogl2_path_curve_to
|
|
/**
|
|
* cogl_path_curve_to:
|
|
* @x_1: X coordinate of the second bezier control point
|
|
* @y_1: Y coordinate of the second bezier control point
|
|
* @x_2: X coordinate of the third bezier control point
|
|
* @y_2: Y coordinate of the third bezier control point
|
|
* @x_3: X coordinate of the fourth bezier control point
|
|
* @y_3: Y coordinate of the fourth bezier control point
|
|
*
|
|
* Adds a cubic bezier curve segment to the current path with the given
|
|
* second, third and fourth control points and using current pen location
|
|
* as the first control point.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_curve_to (CoglPath *path,
|
|
float x_1,
|
|
float y_1,
|
|
float x_2,
|
|
float y_2,
|
|
float x_3,
|
|
float y_3);
|
|
|
|
#define cogl_path_rel_curve_to cogl2_path_rel_curve_to
|
|
/**
|
|
* cogl_path_rel_curve_to:
|
|
* @x_1: X coordinate of the second bezier control point
|
|
* @y_1: Y coordinate of the second bezier control point
|
|
* @x_2: X coordinate of the third bezier control point
|
|
* @y_2: Y coordinate of the third bezier control point
|
|
* @x_3: X coordinate of the fourth bezier control point
|
|
* @y_3: Y coordinate of the fourth bezier control point
|
|
*
|
|
* Adds a cubic bezier curve segment to the current path with the given
|
|
* second, third and fourth control points and using current pen location
|
|
* as the first control point. The given coordinates are relative to the
|
|
* current pen location.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_rel_curve_to (CoglPath *path,
|
|
float x_1,
|
|
float y_1,
|
|
float x_2,
|
|
float y_2,
|
|
float x_3,
|
|
float y_3);
|
|
|
|
#define cogl_path_close cogl2_path_close
|
|
/**
|
|
* cogl_path_close:
|
|
*
|
|
* Closes the path being constructed by adding a straight line segment
|
|
* to it that ends at the first vertex of the path.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_close (CoglPath *path);
|
|
|
|
#define cogl_path_line cogl2_path_line
|
|
/**
|
|
* cogl_path_line:
|
|
* @x_1: X coordinate of the start line vertex
|
|
* @y_1: Y coordinate of the start line vertex
|
|
* @x_2: X coordinate of the end line vertex
|
|
* @y_2: Y coordinate of the end line vertex
|
|
*
|
|
* Constructs a straight line shape starting and ending at the given
|
|
* coordinates. If there is an existing path this will start a new
|
|
* disjoint sub-path.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_line (CoglPath *path,
|
|
float x_1,
|
|
float y_1,
|
|
float x_2,
|
|
float y_2);
|
|
|
|
#define cogl_path_polyline cogl2_path_polyline
|
|
/**
|
|
* cogl_path_polyline:
|
|
* @coords: (in) (array) (transfer none): A pointer to the first element of an
|
|
* array of fixed-point values that specify the vertex coordinates.
|
|
* @num_points: The total number of vertices.
|
|
*
|
|
* Constructs a series of straight line segments, starting from the
|
|
* first given vertex coordinate. If there is an existing path this
|
|
* will start a new disjoint sub-path. Each subsequent segment starts
|
|
* where the previous one ended and ends at the next given vertex
|
|
* coordinate.
|
|
*
|
|
* The coords array must contain 2 * num_points values. The first value
|
|
* represents the X coordinate of the first vertex, the second value
|
|
* represents the Y coordinate of the first vertex, continuing in the same
|
|
* fashion for the rest of the vertices. (num_points - 1) segments will
|
|
* be constructed.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_polyline (CoglPath *path,
|
|
const float *coords,
|
|
int num_points);
|
|
|
|
#define cogl_path_polygon cogl2_path_polygon
|
|
/**
|
|
* cogl_path_polygon:
|
|
* @coords: (in) (array) (transfer none): A pointer to the first element of
|
|
* an array of fixed-point values that specify the vertex coordinates.
|
|
* @num_points: The total number of vertices.
|
|
*
|
|
* Constructs a polygonal shape of the given number of vertices. If
|
|
* there is an existing path this will start a new disjoint sub-path.
|
|
*
|
|
* The coords array must contain 2 * num_points values. The first value
|
|
* represents the X coordinate of the first vertex, the second value
|
|
* represents the Y coordinate of the first vertex, continuing in the same
|
|
* fashion for the rest of the vertices.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_polygon (CoglPath *path,
|
|
const float *coords,
|
|
int num_points);
|
|
|
|
#define cogl_path_rectangle cogl2_path_rectangle
|
|
/**
|
|
* cogl_path_rectangle:
|
|
* @x_1: X coordinate of the top-left corner.
|
|
* @y_1: Y coordinate of the top-left corner.
|
|
* @x_2: X coordinate of the bottom-right corner.
|
|
* @y_2: Y coordinate of the bottom-right corner.
|
|
*
|
|
* Constructs a rectangular shape at the given coordinates. If there
|
|
* is an existing path this will start a new disjoint sub-path.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_rectangle (CoglPath *path,
|
|
float x_1,
|
|
float y_1,
|
|
float x_2,
|
|
float y_2);
|
|
|
|
#define cogl_path_ellipse cogl2_path_ellipse
|
|
/**
|
|
* cogl_path_ellipse:
|
|
* @center_x: X coordinate of the ellipse center
|
|
* @center_y: Y coordinate of the ellipse center
|
|
* @radius_x: X radius of the ellipse
|
|
* @radius_y: Y radius of the ellipse
|
|
*
|
|
* Constructs an ellipse shape. If there is an existing path this will
|
|
* start a new disjoint sub-path.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_ellipse (CoglPath *path,
|
|
float center_x,
|
|
float center_y,
|
|
float radius_x,
|
|
float radius_y);
|
|
|
|
#define cogl_path_round_rectangle cogl2_path_round_rectangle
|
|
/**
|
|
* cogl_path_round_rectangle:
|
|
* @x_1: X coordinate of the top-left corner.
|
|
* @y_1: Y coordinate of the top-left corner.
|
|
* @x_2: X coordinate of the bottom-right corner.
|
|
* @y_2: Y coordinate of the bottom-right corner.
|
|
* @radius: Radius of the corner arcs.
|
|
* @arc_step: Angle increment resolution for subdivision of
|
|
* the corner arcs.
|
|
*
|
|
* Constructs a rectangular shape with rounded corners. If there is an
|
|
* existing path this will start a new disjoint sub-path.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_round_rectangle (CoglPath *path,
|
|
float x_1,
|
|
float y_1,
|
|
float x_2,
|
|
float y_2,
|
|
float radius,
|
|
float arc_step);
|
|
|
|
#define cogl_path_set_fill_rule cogl2_path_set_fill_rule
|
|
/**
|
|
* cogl_path_set_fill_rule:
|
|
* @fill_rule: The new fill rule.
|
|
*
|
|
* Sets the fill rule of the current path to @fill_rule. This will
|
|
* affect how the path is filled when cogl_path_fill() is later
|
|
* called. Note that the fill rule state is attached to the path so
|
|
* calling cogl_get_path() will preserve the fill rule and calling
|
|
* cogl_path_new() will reset the fill rule back to the default.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_set_fill_rule (CoglPath *path, CoglPathFillRule fill_rule);
|
|
|
|
#define cogl_path_get_fill_rule cogl2_path_get_fill_rule
|
|
/**
|
|
* cogl_path_get_fill_rule:
|
|
*
|
|
* Retrieves the fill rule set using cogl_path_set_fill_rule().
|
|
*
|
|
* Return value: the fill rule that is used for the current path.
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
CoglPathFillRule
|
|
cogl_path_get_fill_rule (CoglPath *path);
|
|
|
|
#define cogl_path_fill cogl2_path_fill
|
|
/**
|
|
* cogl_path_fill:
|
|
*
|
|
* Fills the interior of the constructed shape using the current
|
|
* drawing color.
|
|
*
|
|
* The interior of the shape is determined using the fill rule of the
|
|
* path. See %CoglPathFillRule for details.
|
|
*
|
|
* <note>The result of referencing sliced textures in your current
|
|
* pipeline when filling a path are undefined. You should pass
|
|
* the %COGL_TEXTURE_NO_SLICING flag when loading any texture you will
|
|
* use while filling a path.</note>
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_fill (CoglPath *path);
|
|
|
|
/**
|
|
* cogl_framebuffer_fill_path:
|
|
* @framebuffer: A #CoglFramebuffer
|
|
* @pipeline: A #CoglPipeline to render with
|
|
* @path: The #CoglPath to fill
|
|
*
|
|
* Fills the interior of the path using the fragment operations
|
|
* defined by the pipeline.
|
|
*
|
|
* The interior of the shape is determined using the fill rule of the
|
|
* path. See %CoglPathFillRule for details.
|
|
*
|
|
* <note>The result of referencing sliced textures in your current
|
|
* pipeline when filling a path are undefined. You should pass
|
|
* the %COGL_TEXTURE_NO_SLICING flag when loading any texture you will
|
|
* use while filling a path.</note>
|
|
*
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_framebuffer_fill_path (CoglFramebuffer *framebuffer,
|
|
CoglPipeline *pipeline,
|
|
CoglPath *path);
|
|
|
|
#define cogl_path_stroke cogl2_path_stroke
|
|
/**
|
|
* cogl_path_stroke:
|
|
*
|
|
* Strokes the constructed shape using the current drawing color and a
|
|
* width of 1 pixel (regardless of the current transformation
|
|
* matrix).
|
|
*
|
|
* Since: 2.0
|
|
*/
|
|
void
|
|
cogl_path_stroke (CoglPath *path);
|
|
|
|
/**
|
|
* cogl_framebuffer_stroke_path:
|
|
* @framebuffer: A #CoglFramebuffer
|
|
* @pipeline: A #CoglPipeline to render with
|
|
* @path: The #CoglPath to stroke
|
|
*
|
|
* Strokes the edge of the path using the fragment operations defined
|
|
* by the pipeline. The stroke line will have a width of 1 pixel
|
|
* regardless of the current transformation matrix.
|
|
*
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_framebuffer_stroke_path (CoglFramebuffer *framebuffer,
|
|
CoglPipeline *pipeline,
|
|
CoglPath *path);
|
|
|
|
/**
|
|
* cogl_framebuffer_push_path_clip:
|
|
* @framebuffer: A #CoglFramebuffer pointer
|
|
* @path: The path to clip with.
|
|
*
|
|
* Sets a new clipping area using the silhouette of the specified,
|
|
* filled @path. The clipping area is intersected with the previous
|
|
* clipping area. To restore the previous clipping area, call
|
|
* cogl_framebuffer_pop_clip().
|
|
*
|
|
* Since: 1.0
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_framebuffer_push_path_clip (CoglFramebuffer *framebuffer,
|
|
CoglPath *path);
|
|
|
|
#define cogl_clip_push_from_path cogl2_clip_push_from_path
|
|
/**
|
|
* cogl_clip_push_from_path:
|
|
* @path: The path to clip with.
|
|
*
|
|
* Sets a new clipping area using the silhouette of the specified,
|
|
* filled @path. The clipping area is intersected with the previous
|
|
* clipping area. To restore the previous clipping area, call
|
|
* call cogl_clip_pop().
|
|
*
|
|
* Since: 1.8
|
|
* Stability: Unstable
|
|
*/
|
|
void
|
|
cogl_clip_push_from_path (CoglPath *path);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __COGL_PATH_FUNCTIONS_H__ */
|
|
|