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Since the Cogl 1.18 branch is actively maintained in parallel with the
master branch; this is a counter part to commit 1b83ef938fc16b which
re-licensed the master branch to use the MIT license.
This re-licensing is a follow up to the proposal that was sent to the
Cogl mailing list:
http://lists.freedesktop.org/archives/cogl/2013-December/001465.html
Note: there was a copyright assignment policy in place for Clutter (and
therefore Cogl which was part of Clutter at the time) until the 11th of
June 2010 and so we only checked the details after that point (commit
0bbf50f905)
For each file, authors were identified via this Git command:
$ git blame -p -C -C -C20 -M -M10 0bbf50f905..HEAD
We received blanket approvals for re-licensing all Red Hat and Collabora
contributions which reduced how many people needed to be contacted
individually:
- http://lists.freedesktop.org/archives/cogl/2013-December/001470.html
- http://lists.freedesktop.org/archives/cogl/2014-January/001536.html
Individual approval requests were sent to all the other identified authors
who all confirmed the re-license on the Cogl mailinglist:
http://lists.freedesktop.org/archives/cogl/2014-January
As well as updating the copyright header in all sources files, the
COPYING file has been updated to reflect the license change and also
document the other licenses used in Cogl such as the SGI Free Software
License B, version 2.0 and the 3-clause BSD license.
This patch was not simply cherry-picked from master; but the same
methodology was used to check the source files.
267 lines
9.4 KiB
C
267 lines
9.4 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2010,2013 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*/
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#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
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#error "Only <cogl/cogl.h> can be included directly."
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#endif
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#ifndef __COGL_CLIP_STATE_H__
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#define __COGL_CLIP_STATE_H__
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#include <cogl/cogl-types.h>
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#include <cogl/cogl-macros.h>
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#include <cogl/cogl-primitive.h>
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COGL_BEGIN_DECLS
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/**
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* SECTION:cogl-clipping
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* @short_description: Fuctions for manipulating a stack of clipping regions
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*
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* To support clipping your geometry to rectangles or paths Cogl exposes a
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* stack based API whereby each clip region you push onto the stack is
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* intersected with the previous region.
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*/
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/**
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* cogl_clip_push_window_rectangle:
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* @x_offset: left edge of the clip rectangle in window coordinates
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* @y_offset: top edge of the clip rectangle in window coordinates
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* @width: width of the clip rectangle
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* @height: height of the clip rectangle
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*
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* Specifies a rectangular clipping area for all subsequent drawing
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* operations. Any drawing commands that extend outside the rectangle
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* will be clipped so that only the portion inside the rectangle will
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* be displayed. The rectangle dimensions are not transformed by the
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* current model-view matrix.
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*
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* The rectangle is intersected with the current clip region. To undo
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* the effect of this function, call cogl_clip_pop().
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*
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* Since: 1.2
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* Deprecated: 1.16: Use cogl_framebuffer_push_scissor_clip() instead
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*/
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COGL_DEPRECATED_IN_1_16_FOR (cogl_framebuffer_push_scissor_clip)
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void
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cogl_clip_push_window_rectangle (int x_offset,
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int y_offset,
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int width,
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int height);
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/**
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* cogl_clip_push_window_rect:
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* @x_offset: left edge of the clip rectangle in window coordinates
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* @y_offset: top edge of the clip rectangle in window coordinates
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* @width: width of the clip rectangle
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* @height: height of the clip rectangle
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*
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* Specifies a rectangular clipping area for all subsequent drawing
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* operations. Any drawing commands that extend outside the rectangle
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* will be clipped so that only the portion inside the rectangle will
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* be displayed. The rectangle dimensions are not transformed by the
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* current model-view matrix.
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*
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* The rectangle is intersected with the current clip region. To undo
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* the effect of this function, call cogl_clip_pop().
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*
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* Deprecated: 1.16: Use cogl_framebuffer_push_scissor_clip() instead
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*/
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COGL_DEPRECATED_IN_1_16_FOR (cogl_framebuffer_push_scissor_clip)
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void
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cogl_clip_push_window_rect (float x_offset,
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float y_offset,
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float width,
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float height);
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/**
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* cogl_clip_push_rectangle:
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* @x0: x coordinate for top left corner of the clip rectangle
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* @y0: y coordinate for top left corner of the clip rectangle
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* @x1: x coordinate for bottom right corner of the clip rectangle
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* @y1: y coordinate for bottom right corner of the clip rectangle
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*
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* Specifies a rectangular clipping area for all subsequent drawing
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* operations. Any drawing commands that extend outside the rectangle
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* will be clipped so that only the portion inside the rectangle will
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* be displayed. The rectangle dimensions are transformed by the
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* current model-view matrix.
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*
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* The rectangle is intersected with the current clip region. To undo
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* the effect of this function, call cogl_clip_pop().
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*
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* Since: 1.2
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* Deprecated: 1.16: Use cogl_framebuffer_push_rectangle_clip()
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* instead
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*/
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COGL_DEPRECATED_IN_1_16_FOR (cogl_framebuffer_push_rectangle_clip)
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void
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cogl_clip_push_rectangle (float x0,
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float y0,
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float x1,
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float y1);
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/**
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* cogl_clip_push:
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* @x_offset: left edge of the clip rectangle
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* @y_offset: top edge of the clip rectangle
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* @width: width of the clip rectangle
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* @height: height of the clip rectangle
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*
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* Specifies a rectangular clipping area for all subsequent drawing
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* operations. Any drawing commands that extend outside the rectangle
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* will be clipped so that only the portion inside the rectangle will
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* be displayed. The rectangle dimensions are transformed by the
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* current model-view matrix.
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*
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* The rectangle is intersected with the current clip region. To undo
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* the effect of this function, call cogl_clip_pop().
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*
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* Deprecated: 1.16: The x, y, width, height arguments are inconsistent
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* with other API that specify rectangles in model space, and when used
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* with a coordinate space that puts the origin at the center and y+
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* extending up, it's awkward to use. Please use
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* cogl_framebuffer_push_rectangle_clip()
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*/
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COGL_DEPRECATED_IN_1_16_FOR (cogl_framebuffer_push_rectangle_clip)
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void
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cogl_clip_push (float x_offset,
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float y_offset,
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float width,
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float height);
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/**
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* cogl_clip_push_primitive:
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* @primitive: A #CoglPrimitive describing a flat 2D shape
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* @bounds_x1: x coordinate for the top-left corner of the primitives
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* bounds
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* @bounds_y1: y coordinate for the top-left corner of the primitives
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* bounds
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* @bounds_x2: x coordinate for the bottom-right corner of the primitives
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* bounds
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* @bounds_y2: y coordinate for the bottom-right corner of the
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* primitives bounds.
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*
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* Sets a new clipping area using a 2D shaped described with a
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* #CoglPrimitive. The shape must not contain self overlapping
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* geometry and must lie on a single 2D plane. A bounding box of the
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* 2D shape in local coordinates (the same coordinates used to
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* describe the shape) must be given. It is acceptable for the bounds
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* to be larger than the true bounds but behaviour is undefined if the
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* bounds are smaller than the true bounds.
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*
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* The primitive is transformed by the current model-view matrix and
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* the silhouette is intersected with the previous clipping area. To
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* restore the previous clipping area, call
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* cogl_clip_pop().
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*
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* Since: 1.10
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* Stability: unstable
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* Deprecated: 1.16: Use cogl_framebuffer_push_primitive_clip()
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* instead
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*/
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COGL_DEPRECATED_IN_1_16_FOR (cogl_framebuffer_push_primitive_clip)
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void
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cogl_clip_push_primitive (CoglPrimitive *primitive,
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float bounds_x1,
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float bounds_y1,
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float bounds_x2,
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float bounds_y2);
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/**
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* cogl_clip_pop:
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*
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* Reverts the clipping region to the state before the last call to
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* cogl_clip_push().
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*
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* Deprecated: 1.16: Use cogl_framebuffer_pop_clip() instead
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*/
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COGL_DEPRECATED_IN_1_16_FOR (cogl_framebuffer_pop_clip)
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void
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cogl_clip_pop (void);
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/**
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* cogl_clip_ensure:
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*
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* Ensures that the current clipping region has been set in GL. This
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* will automatically be called before any Cogl primitives but it
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* maybe be neccessary to call if you are using raw GL calls with
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* clipping.
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*
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* Deprecated: 1.2: Calling this function has no effect
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*
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* Since: 1.0
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*/
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COGL_DEPRECATED
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void
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cogl_clip_ensure (void);
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/**
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* cogl_clip_stack_save:
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*
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* Save the entire state of the clipping stack and then clear all
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* clipping. The previous state can be returned to with
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* cogl_clip_stack_restore(). Each call to cogl_clip_push() after this
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* must be matched by a call to cogl_clip_pop() before calling
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* cogl_clip_stack_restore().
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*
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* Deprecated: 1.2: This was originally added to allow us to save the
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* clip stack when switching to an offscreen framebuffer, but it's
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* not necessary anymore given that framebuffers now own separate
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* clip stacks which will be automatically switched between when a
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* new buffer is set. Calling this function has no effect
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*
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* Since: 0.8.2
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*/
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COGL_DEPRECATED
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void
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cogl_clip_stack_save (void);
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/**
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* cogl_clip_stack_restore:
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*
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* Restore the state of the clipping stack that was previously saved
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* by cogl_clip_stack_save().
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*
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* Deprecated: 1.2: This was originally added to allow us to restore
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* the clip stack when switching back from an offscreen framebuffer,
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* but it's not necessary anymore given that framebuffers now own
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* separate clip stacks which will be automatically switched between
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* when a new buffer is set. Calling this function has no effect
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*
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* Since: 0.8.2
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*/
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COGL_DEPRECATED
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void
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cogl_clip_stack_restore (void);
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COGL_END_DECLS
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#endif /* __COGL_CLIP_STATE_H__ */
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