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/*
Copyright (C) 2013 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "TextureMapperTile.h"
#include "BitmapTexture.h"
#include "Image.h"
#include "TextureMapper.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(TextureMapperTile);
class GraphicsLayer;
TextureMapperTile::TextureMapperTile(const FloatRect& rect)
: m_rect(rect)
{
}
TextureMapperTile::~TextureMapperTile() = default;
RefPtr<BitmapTexture> TextureMapperTile::texture() const
{
return m_texture;
}
void TextureMapperTile::setTexture(BitmapTexture* texture)
{
m_texture = texture;
}
void TextureMapperTile::updateContents(Image* image, const IntRect& dirtyRect)
{
IntRect targetRect = enclosingIntRect(m_rect);
targetRect.intersect(dirtyRect);
if (targetRect.isEmpty())
return;
IntPoint sourceOffset = targetRect.location();
// Normalize sourceRect to the buffer's coordinates.
sourceOffset.move(-dirtyRect.x(), -dirtyRect.y());
// Normalize targetRect to the texture's coordinates.
targetRect.move(-m_rect.x(), -m_rect.y());
if (!m_texture) {
OptionSet<BitmapTexture::Flags> flags;
if (!image->currentFrameKnownToBeOpaque())
flags.add(BitmapTexture::Flags::SupportsAlpha);
m_texture = BitmapTexture::create(targetRect.size(), flags);
}
auto nativeImage = image->currentNativeImage();
m_texture->updateContents(nativeImage.get(), targetRect, sourceOffset);
}
void TextureMapperTile::updateContents(GraphicsLayer* sourceLayer, const IntRect& dirtyRect, float scale)
{
IntRect targetRect = enclosingIntRect(m_rect);
targetRect.intersect(dirtyRect);
if (targetRect.isEmpty())
return;
IntPoint sourceOffset = targetRect.location();
// Normalize targetRect to the texture's coordinates.
targetRect.move(-m_rect.x(), -m_rect.y());
if (!m_texture)
m_texture = BitmapTexture::create(targetRect.size(), { BitmapTexture::Flags::SupportsAlpha });
m_texture->updateContents(sourceLayer, targetRect, sourceOffset, scale);
}
void TextureMapperTile::paint(TextureMapper& textureMapper, const TransformationMatrix& transform, float opacity, bool allEdgesExposed)
{
if (texture().get())
textureMapper.drawTexture(*texture().get(), rect(), transform, opacity, allEdgesExposed ? TextureMapper::AllEdgesExposed::Yes : TextureMapper::AllEdgesExposed::No);
}
} // namespace WebCore
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