gecko-dev/gfx/2d/SourceSurfaceSkia.cpp

149 lines
3.8 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* ***** 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) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Matt Woodrow <mwoodrow@mozilla.com>
*
* 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 ***** */
#include "Logging.h"
#include "SourceSurfaceSkia.h"
#include "skia/SkBitmap.h"
#include "skia/SkDevice.h"
#include "HelpersSkia.h"
#include "DrawTargetSkia.h"
namespace mozilla {
namespace gfx {
SourceSurfaceSkia::SourceSurfaceSkia()
: mDrawTarget(NULL)
{
}
SourceSurfaceSkia::~SourceSurfaceSkia()
{
MarkIndependent();
}
IntSize
SourceSurfaceSkia::GetSize() const
{
return mSize;
}
SurfaceFormat
SourceSurfaceSkia::GetFormat() const
{
return mFormat;
}
bool
SourceSurfaceSkia::InitFromData(unsigned char* aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat)
{
mBitmap.setConfig(GfxFormatToSkiaConfig(aFormat), aSize.width, aSize.height, aStride);
if (!mBitmap.allocPixels()) {
return false;
}
if (!mBitmap.copyPixelsFrom(aData, mBitmap.getSafeSize(), aStride)) {
return false;
}
mSize = aSize;
mFormat = aFormat;
mStride = aStride;
return true;
}
bool
SourceSurfaceSkia::InitWithBitmap(const SkBitmap& aBitmap,
SurfaceFormat aFormat,
DrawTargetSkia* aOwner)
{
mFormat = aFormat;
mSize = IntSize(aBitmap.width(), aBitmap.height());
if (aOwner) {
mBitmap = aBitmap;
mStride = aBitmap.rowBytes();
mDrawTarget = aOwner;
return true;
} else if (aBitmap.copyTo(&mBitmap, aBitmap.getConfig())) {
mStride = mBitmap.rowBytes();
return true;
}
return false;
}
unsigned char*
SourceSurfaceSkia::GetData()
{
mBitmap.lockPixels();
unsigned char *pixels = (unsigned char *)mBitmap.getPixels();
mBitmap.unlockPixels();
return pixels;
}
void
SourceSurfaceSkia::DrawTargetWillChange()
{
if (mDrawTarget) {
mDrawTarget = NULL;
SkBitmap temp = mBitmap;
mBitmap.reset();
temp.copyTo(&mBitmap, temp.getConfig());
}
}
void
SourceSurfaceSkia::DrawTargetDestroyed()
{
mDrawTarget = NULL;
}
void
SourceSurfaceSkia::MarkIndependent()
{
if (mDrawTarget) {
mDrawTarget->RemoveSnapshot(this);
mDrawTarget = NULL;
}
}
}
}