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/*
* Copyright (C) 2010 Apple Inc. All rights reserved.
* Copyright (C) 2011 Brent Fulgham <bfulgham@webkit.org>
* Copyright (C) 2011 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ShareableBitmap.h"
#include "BitmapImage.h"
#include "CairoOperations.h"
#include "CairoUtilities.h"
#include "GraphicsContextCairo.h"
#include "NotImplemented.h"
namespace WebCore {
static const cairo_format_t cairoFormat = CAIRO_FORMAT_ARGB32;
std::optional<DestinationColorSpace> ShareableBitmapConfiguration::validateColorSpace(std::optional<DestinationColorSpace> colorSpace)
{
return colorSpace;
}
CheckedUint32 ShareableBitmapConfiguration::calculateBytesPerPixel(const DestinationColorSpace&)
{
return 4;
}
CheckedUint32 ShareableBitmapConfiguration::calculateBytesPerRow(const IntSize& size, const DestinationColorSpace&)
{
return cairo_format_stride_for_width(cairoFormat, size.width());
}
static inline RefPtr<cairo_surface_t> createSurfaceFromData(uint8_t* data, const IntSize& size)
{
const int stride = cairo_format_stride_for_width(cairoFormat, size.width());
return adoptRef(cairo_image_surface_create_for_data(data, cairoFormat, size.width(), size.height(), stride));
}
std::unique_ptr<GraphicsContext> ShareableBitmap::createGraphicsContext()
{
RefPtr<cairo_surface_t> image = createCairoSurface();
return makeUnique<GraphicsContextCairo>(image.get());
}
void ShareableBitmap::paint(GraphicsContext& context, const IntPoint& dstPoint, const IntRect& srcRect)
{
paint(context, 1, dstPoint, srcRect);
}
void ShareableBitmap::paint(GraphicsContext& context, float scaleFactor, const IntPoint& dstPoint, const IntRect& srcRect)
{
RefPtr<cairo_surface_t> surface = createSurfaceFromData(mutableSpan().data(), size());
cairo_surface_set_device_scale(surface.get(), scaleFactor, scaleFactor);
FloatRect destRect(dstPoint, srcRect.size());
ASSERT(context.hasPlatformContext());
auto& state = context.state();
Cairo::drawSurface(*context.platformContext(), surface.get(), destRect, srcRect, state.imageInterpolationQuality(), state.alpha(), Cairo::ShadowState(state));
}
RefPtr<cairo_surface_t> ShareableBitmap::createPersistentCairoSurface()
{
return createSurfaceFromData(mutableSpan().data(), size());
}
RefPtr<cairo_surface_t> ShareableBitmap::createCairoSurface()
{
RefPtr<cairo_surface_t> image = createSurfaceFromData(mutableSpan().data(), size());
ref(); // Balanced by deref in releaseSurfaceData.
static cairo_user_data_key_t dataKey;
cairo_surface_set_user_data(image.get(), &dataKey, this, releaseSurfaceData);
return image;
}
void ShareableBitmap::releaseSurfaceData(void* typelessBitmap)
{
static_cast<ShareableBitmap*>(typelessBitmap)->deref(); // Balanced by ref in createCairoSurface.
}
RefPtr<Image> ShareableBitmap::createImage()
{
RefPtr<cairo_surface_t> surface = createCairoSurface();
if (!surface)
return nullptr;
return BitmapImage::create(WTFMove(surface));
}
void ShareableBitmap::setOwnershipOfMemory(const ProcessIdentity&)
{
}
} // namespace WebCore
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