mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
89 lines
3.9 KiB
C++
89 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla Corporation code.
|
|
*
|
|
* The Initial Developer of the Original Code is Mozilla Foundation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2008
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Robert O'Callahan <robert@ocallahan.org>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef GFX_UTILS_H
|
|
#define GFX_UTILS_H
|
|
|
|
#include "gfxTypes.h"
|
|
#include "gfxPattern.h"
|
|
#include "gfxImageSurface.h"
|
|
|
|
class gfxDrawable;
|
|
|
|
class THEBES_API gfxUtils {
|
|
public:
|
|
/*
|
|
* Premultiply or Unpremultiply aSourceSurface, writing the result
|
|
* to aDestSurface or back into aSourceSurface if aDestSurface is null.
|
|
*
|
|
* If aDestSurface is given, it must have identical format, dimensions, and
|
|
* stride as the source.
|
|
*
|
|
* If the source is not ImageFormatARGB32, no operation is performed. If
|
|
* aDestSurface is given, the data is copied over.
|
|
*/
|
|
static void PremultiplyImageSurface(gfxImageSurface *aSourceSurface,
|
|
gfxImageSurface *aDestSurface = nsnull);
|
|
static void UnpremultiplyImageSurface(gfxImageSurface *aSurface,
|
|
gfxImageSurface *aDestSurface = nsnull);
|
|
|
|
/**
|
|
* Draw something drawable while working around limitations like bad support
|
|
* for EXTEND_PAD, lack of source-clipping, or cairo / pixman bugs with
|
|
* extreme user-space-to-image-space transforms.
|
|
*
|
|
* The input parameters here usually come from the output of our image
|
|
* snapping algorithm in nsLayoutUtils.cpp.
|
|
* This method is split from nsLayoutUtils::DrawPixelSnapped to allow for
|
|
* adjusting the parameters. For example, certain images with transparent
|
|
* margins only have a drawable subimage. For those images, imgFrame::Draw
|
|
* will tweak the rects and transforms that it gets from the pixel snapping
|
|
* algorithm before passing them on to this method.
|
|
*/
|
|
static void DrawPixelSnapped(gfxContext* aContext,
|
|
gfxDrawable* aDrawable,
|
|
const gfxMatrix& aUserSpaceToImageSpace,
|
|
const gfxRect& aSubimage,
|
|
const gfxRect& aSourceRect,
|
|
const gfxRect& aImageRect,
|
|
const gfxRect& aFill,
|
|
const gfxImageSurface::gfxImageFormat aFormat,
|
|
const gfxPattern::GraphicsFilter& aFilter);
|
|
};
|
|
|
|
#endif
|