From 7e3773d591be20a4ddb1ef7df2709fd7655b7917 Mon Sep 17 00:00:00 2001
From: Nicolas Roard <nicolas@android.com>
Date: Mon, 31 Jan 2011 16:02:42 -0800
Subject: Implement dynamic allocation of base tiles. This way, a webview will
 only consume as much GPU memory as needed, depending on its size, to a
 maximum of 256 tiles per TiledPage.

bug:3376517

Change-Id: Icc1e47623297cf1c01d40aa9e123c1a05373e7e5
---
 WebCore/platform/graphics/android/GLWebViewState.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'WebCore/platform/graphics/android/GLWebViewState.cpp')

diff --git a/WebCore/platform/graphics/android/GLWebViewState.cpp b/WebCore/platform/graphics/android/GLWebViewState.cpp
index 3c1d40a..63fe730 100644
--- a/WebCore/platform/graphics/android/GLWebViewState.cpp
+++ b/WebCore/platform/graphics/android/GLWebViewState.cpp
@@ -287,6 +287,11 @@ void GLWebViewState::setViewport(SkRect& viewport, float scale)
             static_cast<int>(floorf(viewport.fTop * invTileContentHeight)),
             static_cast<int>(ceilf(viewport.fRight * invTileContentWidth)),
             static_cast<int>(ceilf(viewport.fBottom * invTileContentHeight)));
+
+    int maxTextureCount = (m_viewportTileBounds.width()+1)*(m_viewportTileBounds.height()+1)*2;
+    TilesManager::instance()->setMaxTextureCount(maxTextureCount);
+    m_tiledPageA->updateBaseTileSize();
+    m_tiledPageB->updateBaseTileSize();
 }
 
 } // namespace WebCore
-- 
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