1 files changed, 85 insertions, 0 deletions
diff --git a/WebCore/platform/graphics/win/ImageCGWin.cpp b/WebCore/platform/graphics/win/ImageCGWin.cpp
new file mode 100644
index 0000000..752729c
--- /dev/null
+++ b/WebCore/platform/graphics/win/ImageCGWin.cpp
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2006, 2007, 2008 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 COMPUTER, 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 COMPUTER, 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 "GraphicsContext.h"
+#include <ApplicationServices/ApplicationServices.h>
+
+#include <windows.h>
+#include "PlatformString.h"
+
+namespace WebCore {
+
+bool BitmapImage::getHBITMAPOfSize(HBITMAP bmp, LPSIZE size)
+{
+    ASSERT(bmp);
+
+    BITMAP bmpInfo;
+    GetObject(bmp, sizeof(BITMAP), &bmpInfo);
+
+    ASSERT(bmpInfo.bmBitsPixel == 32);
+    int bufferSize = bmpInfo.bmWidthBytes * bmpInfo.bmHeight;
+    
+    CGColorSpaceRef deviceRGB = CGColorSpaceCreateDeviceRGB();
+    CGContextRef cgContext = CGBitmapContextCreate(bmpInfo.bmBits, bmpInfo.bmWidth, bmpInfo.bmHeight,
+        8, bmpInfo.bmWidthBytes, deviceRGB, kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst);
+  
+    GraphicsContext gc(cgContext);
+
+    IntSize imageSize = BitmapImage::size();
+    if (size)
+        drawFrameMatchingSourceSize(&gc, FloatRect(0.0f, 0.0f, bmpInfo.bmWidth, bmpInfo.bmHeight), IntSize(*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
+    CGContextRelease(cgContext);
+    CGColorSpaceRelease(deviceRGB);
+
+    return true;
+}
+
+void BitmapImage::drawFrameMatchingSourceSize(GraphicsContext* ctxt, const FloatRect& dstRect, const IntSize& srcSize, CompositeOperator compositeOp)
+{
+    int frames = frameCount();
+    for (int i = 0; i < frames; ++i) {
+        CGImageRef image = frameAtIndex(i);
+        if (CGImageGetHeight(image) == static_cast<size_t>(srcSize.height()) && CGImageGetWidth(image) == 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
+    IntSize imageSize = BitmapImage::size();
+    draw(ctxt, dstRect, FloatRect(0.0f, 0.0f, imageSize.width(), imageSize.height()), compositeOp);
+}
+
+} // namespace WebCore