blob: 68bf397defb18ed0778e83f642cd9f2a5df6db33 [file] [log] [blame]
/*
* Copyright (C) 2008, 2013 Apple Inc. All rights reserved.
*
* 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. ``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
* 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 "GraphicsContextImplCairo.h"
#include "RefPtrCairo.h"
#include <cairo.h>
#include <cairo-win32.h>
#include <windows.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
RefPtr<BitmapImage> BitmapImage::create(HBITMAP hBitmap)
{
DIBSECTION dibSection;
if (!GetObject(hBitmap, sizeof(DIBSECTION), &dibSection))
return 0;
ASSERT(dibSection.dsBm.bmBitsPixel == 32);
if (dibSection.dsBm.bmBitsPixel != 32)
return 0;
ASSERT(dibSection.dsBm.bmBits);
if (!dibSection.dsBm.bmBits)
return 0;
RefPtr<cairo_surface_t> surface = adoptRef(cairo_win32_surface_create_with_dib(CAIRO_FORMAT_ARGB32, dibSection.dsBm.bmWidth, dibSection.dsBm.bmHeight));
return BitmapImage::create(WTFMove(surface));
}
bool BitmapImage::getHBITMAPOfSize(HBITMAP bmp, const IntSize* size)
{
ASSERT(bmp);
BITMAP bmpInfo;
GetObject(bmp, sizeof(BITMAP), &bmpInfo);
// If this is a 32bpp bitmap, which it always should be, we'll clear it so alpha-wise it will be visible
if (bmpInfo.bmBitsPixel == 32 && bmpInfo.bmBits) {
int bufferSize = bmpInfo.bmWidthBytes * bmpInfo.bmHeight;
memset(bmpInfo.bmBits, 255, bufferSize);
}
unsigned char* bmpdata = (unsigned char*)bmpInfo.bmBits + bmpInfo.bmWidthBytes*(bmpInfo.bmHeight-1);
cairo_surface_t* image = cairo_image_surface_create_for_data(bmpdata, CAIRO_FORMAT_ARGB32, bmpInfo.bmWidth, bmpInfo.bmHeight, -bmpInfo.bmWidthBytes);
cairo_t* targetRef = cairo_create(image);
cairo_surface_destroy(image);
GraphicsContext gc(GraphicsContextImplCairo::createFactory(targetRef));
FloatSize imageSize = BitmapImage::size();
if (size)
drawFrameMatchingSourceSize(gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), *size, CompositeCopy);
else
draw(gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), { CompositeCopy });
// Do cleanup
cairo_destroy(targetRef);
return true;
}
void BitmapImage::drawFrameMatchingSourceSize(GraphicsContext& ctxt, const FloatRect& dstRect, const IntSize& srcSize, CompositeOperator compositeOp)
{
size_t frames = frameCount();
for (size_t i = 0; i < frames; ++i) {
auto surface = frameImageAtIndex(i);
if (!surface)
continue;
if (cairo_image_surface_get_height(surface.get()) == static_cast<size_t>(srcSize.height()) && cairo_image_surface_get_width(surface.get()) == static_cast<size_t>(srcSize.width())) {
size_t currentFrame = m_currentFrame;
m_currentFrame = i;
draw(ctxt, dstRect, FloatRect(0.0f, 0.0f, srcSize.width(), srcSize.height()), { compositeOp });
m_currentFrame = currentFrame;
return;
}
}
// No image of the correct size was found, fallback to drawing the current frame
FloatSize imageSize = BitmapImage::size();
draw(ctxt, dstRect, FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), { compositeOp });
}
} // namespace WebCore