From 68513a70bcd92384395513322f1b801e7bf9c729 Mon Sep 17 00:00:00 2001
From: Steve Block <steveblock@google.com>
Date: Wed, 29 Sep 2010 17:32:26 +0100
Subject: Merge WebKit at r67908: Initial merge by Git

Change-Id: I43a553e7b3299b28cb6ee8aa035ed70fe342b972
---
 .../graphics/chromium/ImageLayerChromium.cpp        | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

(limited to 'WebCore/platform/graphics/chromium/ImageLayerChromium.cpp')

diff --git a/WebCore/platform/graphics/chromium/ImageLayerChromium.cpp b/WebCore/platform/graphics/chromium/ImageLayerChromium.cpp
index 060bb46..c97be82 100644
--- a/WebCore/platform/graphics/chromium/ImageLayerChromium.cpp
+++ b/WebCore/platform/graphics/chromium/ImageLayerChromium.cpp
@@ -34,6 +34,7 @@
 
 #include "ImageLayerChromium.h"
 
+#include "Image.h"
 #include "LayerRendererChromium.h"
 
 #if PLATFORM(SKIA)
@@ -61,7 +62,7 @@ ImageLayerChromium::ImageLayerChromium(GraphicsLayerChromium* owner)
 {
 }
 
-void ImageLayerChromium::setContents(NativeImagePtr contents)
+void ImageLayerChromium::setContents(Image* contents)
 {
     // Check if the image has changed.
     if (m_contents == contents)
@@ -75,13 +76,14 @@ void ImageLayerChromium::updateContents()
     ASSERT(layerRenderer());
 
     void* pixels = 0;
-    IntRect dirtyRect(m_dirtyRect);
     IntSize requiredTextureSize;
     IntSize bitmapSize;
 
+    NativeImagePtr nativeImage = m_contents->nativeImageForCurrentFrame();
+
 #if PLATFORM(SKIA)
     // The layer contains an Image.
-    NativeImageSkia* skiaImage = static_cast<NativeImageSkia*>(m_contents);
+    NativeImageSkia* skiaImage = static_cast<NativeImageSkia*>(nativeImage);
     const SkBitmap* skiaBitmap = skiaImage;
     requiredTextureSize = IntSize(skiaBitmap->width(), skiaBitmap->height());
     ASSERT(skiaBitmap);
@@ -95,9 +97,8 @@ void ImageLayerChromium::updateContents()
     }
 #elif PLATFORM(CG)
     // NativeImagePtr is a CGImageRef on Mac OS X.
-    CGImageRef cgImage = m_contents;
-    int width = CGImageGetWidth(cgImage);
-    int height = CGImageGetHeight(cgImage);
+    int width = CGImageGetWidth(nativeImage);
+    int height = CGImageGetHeight(nativeImage);
     requiredTextureSize = IntSize(width, height);
     bitmapSize = requiredTextureSize;
     // FIXME: we should get rid of this temporary copy where possible.
@@ -109,7 +110,7 @@ void ImageLayerChromium::updateContents()
     // Try to reuse the color space from the image to preserve its colors.
     // Some images use a color space (such as indexed) unsupported by the bitmap context.
     RetainPtr<CGColorSpaceRef> colorSpaceReleaser;
-    CGColorSpaceRef colorSpace = CGImageGetColorSpace(cgImage);
+    CGColorSpaceRef colorSpace = CGImageGetColorSpace(nativeImage);
     CGColorSpaceModel colorSpaceModel = CGColorSpaceGetModel(colorSpace);
     switch (colorSpaceModel) {
     case kCGColorSpaceModelMonochrome:
@@ -130,7 +131,7 @@ void ImageLayerChromium::updateContents()
     CGContextSetBlendMode(tempContext.get(), kCGBlendModeCopy);
     CGContextDrawImage(tempContext.get(),
                        CGRectMake(0, 0, static_cast<CGFloat>(width), static_cast<CGFloat>(height)),
-                       cgImage);
+                       nativeImage);
     pixels = tempVector.data();
 #else
 #error "Need to implement for your platform."
@@ -146,6 +147,10 @@ void ImageLayerChromium::updateContents()
     if (!textureId)
         textureId = layerRenderer()->createLayerTexture();
 
+    // Clip the dirty rect to the bitmap dimensions.
+    IntRect dirtyRect(m_dirtyRect);
+    dirtyRect.intersect(IntRect(IntPoint(0, 0), bitmapSize));
+
     if (pixels)
         updateTextureRect(pixels, bitmapSize, requiredTextureSize,  dirtyRect, textureId);
 }
-- 
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