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/*
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
* Copyright (C) 2007-2009 Torch Mobile Inc.
* Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
*
* 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 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 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 "Image.h"
#include "BitmapImage.h"
#include "GraphicsContext.h"
#include "ImageDecoder.h"
#include "NotImplemented.h"
#include "SharedBuffer.h"
#include "TransformationMatrix.h"
#include "WinceGraphicsExtras.h"
#include <wtf/OwnPtr.h>
#include <wtf/text/WTFString.h>
#include <windows.h>
namespace WebCore {
PassNativeImagePtr ImageFrame::asNewNativeImage() const
{
return SharedBitmap::create(m_backingStore, m_size, hasAlpha());
}
bool FrameData::clear(bool clearMetaData)
{
if (clearMetaData)
m_haveMetadata = false;
if (m_frame) {
m_frame = 0;
return true;
}
return false;
}
bool BitmapImage::getHBITMAPOfSize(HBITMAP bmp, LPSIZE size)
{
if (!bmp)
return false;
BITMAP bmpInfo;
GetObject(bmp, sizeof(BITMAP), &bmpInfo);
ASSERT(bmpInfo.bmBitsPixel == 32);
int bufferSize = bmpInfo.bmWidthBytes * bmpInfo.bmHeight;
OwnPtr<HDC> hdc = adoptPtr(CreateCompatibleDC(0));
HGDIOBJ hOldBmp = SelectObject(hdc.get(), bmp);
{
GraphicsContext gc(hdc.get());
IntSize imageSize = BitmapImage::size();
if (size)
drawFrameMatchingSourceSize(&gc, FloatRect(0, 0, bmpInfo.bmWidth, bmpInfo.bmHeight), IntSize(*size), ColorSpaceDeviceRGB, CompositeCopy);
else
draw(&gc, FloatRect(0, 0, bmpInfo.bmWidth, bmpInfo.bmHeight), FloatRect(0, 0, imageSize.width(), imageSize.height()), ColorSpaceDeviceRGB, CompositeCopy, BlendModeNormal);
}
SelectObject(hdc.get(), hOldBmp);
return true;
}
void BitmapImage::drawFrameMatchingSourceSize(GraphicsContext* ctxt, const FloatRect& dstRect, const IntSize& srcSize, ColorSpace styleColorSpace, CompositeOperator compositeOp)
{
int frames = frameCount();
for (int i = 0; i < frames; ++i) {
RefPtr<SharedBitmap> bmp = frameAtIndex(i);
if (!bmp || bmp->height() != static_cast<unsigned>(srcSize.height()) || bmp->width() != static_cast<unsigned>(srcSize.width()))
continue;
size_t currentFrame = m_currentFrame;
m_currentFrame = i;
draw(ctxt, dstRect, FloatRect(0, 0, srcSize.width(), srcSize.height()), styleColorSpace, compositeOp, BlendModeNormal);
m_currentFrame = currentFrame;
return;
}
// No image of the correct size was found, fallback to drawing the current frame
IntSize imageSize = BitmapImage::size();
draw(ctxt, dstRect, FloatRect(0, 0, imageSize.width(), imageSize.height()), styleColorSpace, compositeOp, BlendModeNormal);
}
void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& dstRect, const FloatRect& srcRectIn, ColorSpace styleColorSpace, CompositeOperator compositeOp, BlendMode blendMode)
{
if (!m_source.initialized())
return;
if (mayFillWithSolidColor())
fillWithSolidColor(ctxt, dstRect, solidColor(), styleColorSpace, compositeOp);
else {
IntRect intSrcRect(srcRectIn);
RefPtr<SharedBitmap> bmp = frameAtIndex(m_currentFrame);
if (bmp) {
if (bmp->width() != m_source.size().width()) {
double scaleFactor = static_cast<double>(bmp->width()) / m_source.size().width();
intSrcRect.setX(stableRound(srcRectIn.x() * scaleFactor));
intSrcRect.setWidth(stableRound(srcRectIn.width() * scaleFactor));
intSrcRect.setY(stableRound(srcRectIn.y() * scaleFactor));
intSrcRect.setHeight(stableRound(srcRectIn.height() * scaleFactor));
}
bmp->draw(ctxt, enclosingIntRect(dstRect), intSrcRect, styleColorSpace, compositeOp, blendMode);
}
}
startAnimation();
}
void Image::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect, const AffineTransform& patternTransform,
const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect, BlendMode blendMode)
{
notImplemented();
}
void BitmapImage::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRectIn, const AffineTransform& patternTransform,
const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect)
{
RefPtr<SharedBitmap> bmp = nativeImageForCurrentFrame();
if (!bmp)
return;
bmp->drawPattern(ctxt, tileRectIn, patternTransform, phase, styleColorSpace, op, destRect, m_source.size());
}
void BitmapImage::checkForSolidColor()
{
if (m_checkedForSolidColor)
return;
if (frameCount() != 1) {
m_isSolidColor = false;
m_checkedForSolidColor = true;
return;
}
RefPtr<SharedBitmap> bmp = frameAtIndex(0);
if (!bmp || !bmp->validHeight()) {
m_isSolidColor = false;
return;
}
if (bmp->width() != 1 || bmp->validHeight() != 1) {
m_isSolidColor = false;
m_checkedForSolidColor = true;
return;
}
m_isSolidColor = true;
if (bmp->is16bit()) {
unsigned short c = ((unsigned short *)bmp->bytes())[0];
int r = (c >> 7) & 0xF8;
int g = (c >> 2) & 0xF8;
int b = (c << 3) & 0xF8;
if (bmp->usesTransparentColor() && bmp->transparentColor() == RGB(r, g, b))
m_solidColor = Color(r, g, b, 0);
else
m_solidColor = Color(r, g, b);
} else {
unsigned c = ((unsigned *)bmp->bytes())[0];
m_solidColor = Color(c);
}
if (bmp->validHeight() == bmp->height())
m_checkedForSolidColor = true;
}
} // namespace WebCore
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