зеркало из https://github.com/mozilla/gecko-dev.git
95 строки
3.3 KiB
C++
95 строки
3.3 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 Oracle Corporation code.
|
|
*
|
|
* The Initial Developer of the Original Code is Oracle Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2005
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Stuart Parmenter <pavlov@pavlov.net>
|
|
*
|
|
* 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_IMAGESURFACE_H
|
|
#define GFX_IMAGESURFACE_H
|
|
|
|
#include "gfxASurface.h"
|
|
#include "gfxPoint.h"
|
|
|
|
// ARGB -- raw buffer.. wont be changed.. good for storing data.
|
|
|
|
/**
|
|
* A raw image buffer. The format can be set in the constructor. Its main
|
|
* purpose is for storing read-only images and using it as a source surface,
|
|
* but it can also be drawn to.
|
|
*/
|
|
class THEBES_API gfxImageSurface : public gfxASurface {
|
|
public:
|
|
/**
|
|
* Construct an image surface.
|
|
* @param format Format of the data
|
|
* @param width Width of the surface in pixels
|
|
* @param height Height in pixels
|
|
*
|
|
* @see gfxImageFormat
|
|
*
|
|
* XXX why not unsigned long for the dimensions? And, why not gfxSize?
|
|
*/
|
|
gfxImageSurface(const gfxIntSize& size, gfxImageFormat format);
|
|
gfxImageSurface(cairo_surface_t *csurf);
|
|
|
|
virtual ~gfxImageSurface();
|
|
|
|
// ImageSurface methods
|
|
gfxImageFormat Format() const { return mFormat; }
|
|
|
|
const gfxIntSize& GetSize() const { return mSize; }
|
|
|
|
/**
|
|
* Distance in bytes between the start of a line and the start of the
|
|
* next line.
|
|
*/
|
|
long Stride() const { return mStride; }
|
|
/**
|
|
* Returns a pointer for the image data. Users of this function can
|
|
* write to it, but must not attempt to free the buffer.
|
|
*/
|
|
unsigned char* Data() { return mData; } // delete this data under us and die.
|
|
|
|
private:
|
|
long ComputeStride() const;
|
|
|
|
gfxIntSize mSize;
|
|
PRBool mOwnsData;
|
|
unsigned char *mData;
|
|
gfxImageFormat mFormat;
|
|
long mStride;
|
|
};
|
|
|
|
#endif /* GFX_IMAGESURFACE_H */
|