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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/177442">177442</a></dd>
<dt>Author</dt> <dd>zandobersek@gmail.com</dd>
<dt>Date</dt> <dd>2014-12-17 03:44:49 -0800 (Wed, 17 Dec 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>[TexMap] Sprinkle range-based for-loops where still possible
https://bugs.webkit.org/show_bug.cgi?id=138752

Reviewed by Chris Dumez.

Apply range-based for-loops where possible in the TextureMapper,
TextureMapperGL and TextureMapperTiledBackingStore classes.

Also prettify the loop in SharedGLData destructor and return
nullptr instead of explicitly constructing the empty PassRefPtr
object in TextureMapperTiledBackingStore::texture().

* platform/graphics/texmap/TextureMapper.cpp:
(WebCore::BitmapTexturePool::acquireTexture):
* platform/graphics/texmap/TextureMapperGL.cpp:
(WebCore::TextureMapperGLData::SharedGLData::~SharedGLData):
(WebCore::TextureMapperGLData::~TextureMapperGLData):
* platform/graphics/texmap/TextureMapperTiledBackingStore.cpp:
(WebCore::TextureMapperTiledBackingStore::paintToTextureMapper):
(WebCore::TextureMapperTiledBackingStore::drawBorder):
(WebCore::TextureMapperTiledBackingStore::drawRepaintCounter):
(WebCore::TextureMapperTiledBackingStore::createOrDestroyTilesIfNeeded):
(WebCore::TextureMapperTiledBackingStore::updateContents):
(WebCore::TextureMapperTiledBackingStore::texture):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicstexmapTextureMappercpp">trunk/Source/WebCore/platform/graphics/texmap/TextureMapper.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicstexmapTextureMapperGLcpp">trunk/Source/WebCore/platform/graphics/texmap/TextureMapperGL.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicstexmapTextureMapperTiledBackingStorecpp">trunk/Source/WebCore/platform/graphics/texmap/TextureMapperTiledBackingStore.cpp</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (177441 => 177442)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2014-12-17 10:14:32 UTC (rev 177441)
+++ trunk/Source/WebCore/ChangeLog        2014-12-17 11:44:49 UTC (rev 177442)
</span><span class="lines">@@ -1,3 +1,30 @@
</span><ins>+2014-12-17  Zan Dobersek  &lt;zdobersek@igalia.com&gt;
+
+        [TexMap] Sprinkle range-based for-loops where still possible
+        https://bugs.webkit.org/show_bug.cgi?id=138752
+
+        Reviewed by Chris Dumez.
+
+        Apply range-based for-loops where possible in the TextureMapper,
+        TextureMapperGL and TextureMapperTiledBackingStore classes.
+
+        Also prettify the loop in SharedGLData destructor and return
+        nullptr instead of explicitly constructing the empty PassRefPtr
+        object in TextureMapperTiledBackingStore::texture().
+
+        * platform/graphics/texmap/TextureMapper.cpp:
+        (WebCore::BitmapTexturePool::acquireTexture):
+        * platform/graphics/texmap/TextureMapperGL.cpp:
+        (WebCore::TextureMapperGLData::SharedGLData::~SharedGLData):
+        (WebCore::TextureMapperGLData::~TextureMapperGLData):
+        * platform/graphics/texmap/TextureMapperTiledBackingStore.cpp:
+        (WebCore::TextureMapperTiledBackingStore::paintToTextureMapper):
+        (WebCore::TextureMapperTiledBackingStore::drawBorder):
+        (WebCore::TextureMapperTiledBackingStore::drawRepaintCounter):
+        (WebCore::TextureMapperTiledBackingStore::createOrDestroyTilesIfNeeded):
+        (WebCore::TextureMapperTiledBackingStore::updateContents):
+        (WebCore::TextureMapperTiledBackingStore::texture):
+
</ins><span class="cx"> 2014-12-17  Radu Stavila  &lt;stavila@adobe.com&gt;
</span><span class="cx"> 
</span><span class="cx">         The SVGDocument of an SVGImage should not perform any additional actions when the SVGImage is being destroyed
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicstexmapTextureMappercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/texmap/TextureMapper.cpp (177441 => 177442)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/texmap/TextureMapper.cpp        2014-12-17 10:14:32 UTC (rev 177441)
+++ trunk/Source/WebCore/platform/graphics/texmap/TextureMapper.cpp        2014-12-17 11:44:49 UTC (rev 177442)
</span><span class="lines">@@ -98,15 +98,13 @@
</span><span class="cx"> PassRefPtr&lt;BitmapTexture&gt; BitmapTexturePool::acquireTexture(const IntSize&amp; size, TextureMapper* textureMapper)
</span><span class="cx"> {
</span><span class="cx">     BitmapTexturePoolEntry* selectedEntry = 0;
</span><del>-    for (size_t i = 0; i &lt; m_textures.size(); ++i) {
-        BitmapTexturePoolEntry* entry = &amp;m_textures[i];
-
</del><ins>+    for (auto&amp; entry : m_textures) {
</ins><span class="cx">         // If the surface has only one reference (the one in m_textures), we can safely reuse it.
</span><del>-        if (entry-&gt;m_texture-&gt;refCount() &gt; 1)
</del><ins>+        if (entry.m_texture-&gt;refCount() &gt; 1)
</ins><span class="cx">             continue;
</span><span class="cx"> 
</span><del>-        if (entry-&gt;m_texture-&gt;canReuseWith(size)) {
-            selectedEntry = entry;
</del><ins>+        if (entry.m_texture-&gt;canReuseWith(size)) {
+            selectedEntry = &amp;entry;
</ins><span class="cx">             break;
</span><span class="cx">         }
</span><span class="cx">     }
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicstexmapTextureMapperGLcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/texmap/TextureMapperGL.cpp (177441 => 177442)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/texmap/TextureMapperGL.cpp        2014-12-17 10:14:32 UTC (rev 177441)
+++ trunk/Source/WebCore/platform/graphics/texmap/TextureMapperGL.cpp        2014-12-17 11:44:49 UTC (rev 177442)
</span><span class="lines">@@ -94,15 +94,14 @@
</span><span class="cx"> 
</span><span class="cx">         ~SharedGLData()
</span><span class="cx">         {
</span><del>-            GLContextDataMap::const_iterator end = glContextDataMap().end();
-            GLContextDataMap::iterator it;
-            for (it = glContextDataMap().begin(); it != end; ++it) {
-                if (it-&gt;value == this)
-                    break;
</del><ins>+            for (auto it = glContextDataMap().begin(), end = glContextDataMap().end(); it != end; ++it) {
+                if (it-&gt;value == this) {
+                    glContextDataMap().remove(it);
+                    return;
+                }
</ins><span class="cx">             }
</span><span class="cx"> 
</span><del>-            ASSERT(it != end);
-            glContextDataMap().remove(it);
</del><ins>+            ASSERT_NOT_REACHED();
</ins><span class="cx">         }
</span><span class="cx">     };
</span><span class="cx"> 
</span><span class="lines">@@ -159,9 +158,8 @@
</span><span class="cx"> 
</span><span class="cx"> TextureMapperGLData::~TextureMapperGLData()
</span><span class="cx"> {
</span><del>-    HashMap&lt;const void*, Platform3DObject&gt;::iterator end = vbos.end();
-    for (HashMap&lt;const void*, Platform3DObject&gt;::iterator it = vbos.begin(); it != end; ++it)
-        context-&gt;deleteBuffer(it-&gt;value);
</del><ins>+    for (auto&amp; entry : vbos)
+        context-&gt;deleteBuffer(entry.value);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void TextureMapperGL::ClipStack::reset(const IntRect&amp; rect, TextureMapperGL::ClipStack::YAxisMode mode)
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicstexmapTextureMapperTiledBackingStorecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/texmap/TextureMapperTiledBackingStore.cpp (177441 => 177442)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/texmap/TextureMapperTiledBackingStore.cpp        2014-12-17 10:14:32 UTC (rev 177441)
+++ trunk/Source/WebCore/platform/graphics/texmap/TextureMapperTiledBackingStore.cpp        2014-12-17 11:44:49 UTC (rev 177442)
</span><span class="lines">@@ -51,22 +51,22 @@
</span><span class="cx"> {
</span><span class="cx">     updateContentsFromImageIfNeeded(textureMapper);
</span><span class="cx">     TransformationMatrix adjustedTransform = transform * adjustedTransformForRect(targetRect);
</span><del>-    for (size_t i = 0; i &lt; m_tiles.size(); ++i)
-        m_tiles[i].paint(textureMapper, adjustedTransform, opacity, calculateExposedTileEdges(rect(), m_tiles[i].rect()));
</del><ins>+    for (auto&amp; tile : m_tiles)
+        tile.paint(textureMapper, adjustedTransform, opacity, calculateExposedTileEdges(rect(), tile.rect()));
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void TextureMapperTiledBackingStore::drawBorder(TextureMapper* textureMapper, const Color&amp; borderColor, float borderWidth, const FloatRect&amp; targetRect, const TransformationMatrix&amp; transform)
</span><span class="cx"> {
</span><span class="cx">     TransformationMatrix adjustedTransform = transform * adjustedTransformForRect(targetRect);
</span><del>-    for (size_t i = 0; i &lt; m_tiles.size(); ++i)
-        textureMapper-&gt;drawBorder(borderColor, borderWidth, m_tiles[i].rect(), adjustedTransform);
</del><ins>+    for (auto&amp; tile : m_tiles)
+        textureMapper-&gt;drawBorder(borderColor, borderWidth, tile.rect(), adjustedTransform);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void TextureMapperTiledBackingStore::drawRepaintCounter(TextureMapper* textureMapper, int repaintCount, const Color&amp; borderColor, const FloatRect&amp; targetRect, const TransformationMatrix&amp; transform)
</span><span class="cx"> {
</span><span class="cx">     TransformationMatrix adjustedTransform = transform * adjustedTransformForRect(targetRect);
</span><del>-    for (size_t i = 0; i &lt; m_tiles.size(); ++i)
-        textureMapper-&gt;drawNumber(repaintCount, borderColor, m_tiles[i].rect().location(), adjustedTransform);
</del><ins>+    for (auto&amp; tile : m_tiles)
+        textureMapper-&gt;drawNumber(repaintCount, borderColor, tile.rect().location(), adjustedTransform);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void TextureMapperTiledBackingStore::createOrDestroyTilesIfNeeded(const FloatSize&amp; size, const IntSize&amp; tileSize, bool hasAlpha)
</span><span class="lines">@@ -112,50 +112,52 @@
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     // Recycle removable tiles to be used for newly requested tiles.
</span><del>-    for (size_t i = 0; i &lt; tileRectsToAdd.size(); ++i) {
</del><ins>+    for (auto&amp; rect : tileRectsToAdd) {
</ins><span class="cx">         if (!tileIndicesToRemove.isEmpty()) {
</span><span class="cx">             // We recycle an existing tile for usage with a new tile rect.
</span><span class="cx">             TextureMapperTile&amp; tile = m_tiles[tileIndicesToRemove.last()];
</span><span class="cx">             tileIndicesToRemove.removeLast();
</span><del>-            tile.setRect(tileRectsToAdd[i]);
</del><ins>+            tile.setRect(rect);
</ins><span class="cx"> 
</span><span class="cx">             if (tile.texture())
</span><span class="cx">                 tile.texture()-&gt;reset(enclosingIntRect(tile.rect()).size(), hasAlpha ? BitmapTexture::SupportsAlpha : 0);
</span><span class="cx">             continue;
</span><span class="cx">         }
</span><span class="cx"> 
</span><del>-        m_tiles.append(TextureMapperTile(tileRectsToAdd[i]));
</del><ins>+        m_tiles.append(TextureMapperTile(rect));
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     // Remove unnecessary tiles, if they weren't recycled.
</span><span class="cx">     // We use a threshold to make sure we don't create/destroy tiles too eagerly.
</span><del>-    for (size_t i = 0; i &lt; tileIndicesToRemove.size() &amp;&amp; m_tiles.size() &gt; TileEraseThreshold; ++i)
-        m_tiles.remove(tileIndicesToRemove[i]);
</del><ins>+    for (auto&amp; index : tileIndicesToRemove) {
+        if (m_tiles.size() &lt;= TileEraseThreshold)
+            break;
+        m_tiles.remove(index);
+    }
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void TextureMapperTiledBackingStore::updateContents(TextureMapper* textureMapper, Image* image, const FloatSize&amp; totalSize, const IntRect&amp; dirtyRect, BitmapTexture::UpdateContentsFlag updateContentsFlag)
</span><span class="cx"> {
</span><span class="cx">     createOrDestroyTilesIfNeeded(totalSize, textureMapper-&gt;maxTextureSize(), !image-&gt;currentFrameKnownToBeOpaque());
</span><del>-    for (size_t i = 0; i &lt; m_tiles.size(); ++i)
-        m_tiles[i].updateContents(textureMapper, image, dirtyRect, updateContentsFlag);
</del><ins>+    for (auto&amp; tile : m_tiles)
+        tile.updateContents(textureMapper, image, dirtyRect, updateContentsFlag);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void TextureMapperTiledBackingStore::updateContents(TextureMapper* textureMapper, GraphicsLayer* sourceLayer, const FloatSize&amp; totalSize, const IntRect&amp; dirtyRect, BitmapTexture::UpdateContentsFlag updateContentsFlag)
</span><span class="cx"> {
</span><span class="cx">     createOrDestroyTilesIfNeeded(totalSize, textureMapper-&gt;maxTextureSize(), true);
</span><del>-    for (size_t i = 0; i &lt; m_tiles.size(); ++i)
-        m_tiles[i].updateContents(textureMapper, sourceLayer, dirtyRect, updateContentsFlag);
</del><ins>+    for (auto&amp; tile : m_tiles)
+        tile.updateContents(textureMapper, sourceLayer, dirtyRect, updateContentsFlag);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> PassRefPtr&lt;BitmapTexture&gt; TextureMapperTiledBackingStore::texture() const
</span><span class="cx"> {
</span><del>-    for (size_t i = 0; i &lt; m_tiles.size(); ++i) {
-        RefPtr&lt;BitmapTexture&gt; texture = m_tiles[i].texture();
-        if (texture)
</del><ins>+    for (const auto&amp; tile : m_tiles) {
+        if (auto texture = tile.texture())
</ins><span class="cx">             return texture;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    return PassRefPtr&lt;BitmapTexture&gt;();
</del><ins>+    return nullptr;
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> } // namespace WebCore
</span></span></pre>
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