зеркало из https://github.com/mozilla/gecko-dev.git
117 строки
2.3 KiB
C++
117 строки
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "Logging.h"
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#include "SourceSurfaceSkia.h"
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#include "skia/SkBitmap.h"
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#include "skia/SkDevice.h"
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#include "HelpersSkia.h"
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#include "DrawTargetSkia.h"
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namespace mozilla {
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namespace gfx {
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SourceSurfaceSkia::SourceSurfaceSkia()
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: mDrawTarget(NULL)
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{
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}
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SourceSurfaceSkia::~SourceSurfaceSkia()
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{
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MarkIndependent();
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}
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IntSize
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SourceSurfaceSkia::GetSize() const
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{
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return mSize;
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}
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SurfaceFormat
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SourceSurfaceSkia::GetFormat() const
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{
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return mFormat;
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}
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bool
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SourceSurfaceSkia::InitFromData(unsigned char* aData,
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const IntSize &aSize,
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int32_t aStride,
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SurfaceFormat aFormat)
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{
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SkBitmap temp;
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temp.setConfig(GfxFormatToSkiaConfig(aFormat), aSize.width, aSize.height, aStride);
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temp.setPixels(aData);
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if (!temp.copyTo(&mBitmap, GfxFormatToSkiaConfig(aFormat))) {
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return false;
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}
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mSize = aSize;
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mFormat = aFormat;
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mStride = aStride;
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return true;
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}
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bool
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SourceSurfaceSkia::InitWithBitmap(const SkBitmap& aBitmap,
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SurfaceFormat aFormat,
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DrawTargetSkia* aOwner)
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{
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mFormat = aFormat;
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mSize = IntSize(aBitmap.width(), aBitmap.height());
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if (aOwner) {
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mBitmap = aBitmap;
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mStride = aBitmap.rowBytes();
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mDrawTarget = aOwner;
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return true;
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} else if (aBitmap.copyTo(&mBitmap, aBitmap.getConfig())) {
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mStride = mBitmap.rowBytes();
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return true;
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}
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return false;
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}
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unsigned char*
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SourceSurfaceSkia::GetData()
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{
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mBitmap.lockPixels();
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unsigned char *pixels = (unsigned char *)mBitmap.getPixels();
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mBitmap.unlockPixels();
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return pixels;
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}
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void
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SourceSurfaceSkia::DrawTargetWillChange()
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{
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if (mDrawTarget) {
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mDrawTarget = NULL;
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SkBitmap temp = mBitmap;
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mBitmap.reset();
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temp.copyTo(&mBitmap, temp.getConfig());
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}
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}
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void
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SourceSurfaceSkia::DrawTargetDestroyed()
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{
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mDrawTarget = NULL;
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}
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void
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SourceSurfaceSkia::MarkIndependent()
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{
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if (mDrawTarget) {
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mDrawTarget->RemoveSnapshot(this);
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mDrawTarget = NULL;
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}
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}
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}
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}
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