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authorTeng-Hui Zhu <ztenghui@google.com>2011-08-23 16:18:08 -0700
committerTeng-Hui Zhu <ztenghui@google.com>2011-08-24 13:19:10 -0700
commit349594acdaf53d8b35f1d153139231c25420e8de (patch)
tree933e9c7b6618f299db132ca87937caee9acf4dd9 /Source
parent5a1bad665e3c27495e4ccb9a73996ce3a84b0a26 (diff)
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Prevent preparing a page with an invalid size.
bug:5185840 Change-Id: I9ac0ad0fcee76be8864494fd55398edf1e68506f
Diffstat (limited to 'Source')
-rw-r--r--Source/WebCore/platform/graphics/android/TiledPage.cpp15
1 files changed, 12 insertions, 3 deletions
diff --git a/Source/WebCore/platform/graphics/android/TiledPage.cpp b/Source/WebCore/platform/graphics/android/TiledPage.cpp
index a69f9d1..600b3f1 100644
--- a/Source/WebCore/platform/graphics/android/TiledPage.cpp
+++ b/Source/WebCore/platform/graphics/android/TiledPage.cpp
@@ -33,12 +33,15 @@
#include "PaintTileOperation.h"
#include "TilesManager.h"
-#ifdef DEBUG
-
#include <cutils/log.h>
#include <wtf/CurrentTime.h>
#include <wtf/text/CString.h>
+#undef XLOGC
+#define XLOGC(...) android_printLog(ANDROID_LOG_DEBUG, "TiledPage", __VA_ARGS__)
+
+#ifdef DEBUG
+
#undef XLOG
#define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "TiledPage", __VA_ARGS__)
@@ -248,7 +251,6 @@ void TiledPage::prepare(bool goingDown, bool goingLeft, const SkIRect& tileBound
TilesManager::instance()->gatherTextures();
// update the tiles distance from the viewport
updateTileState(tileBounds);
- m_prepare = true;
m_scrollingDown = goingDown;
int firstTileX = tileBounds.fLeft;
@@ -279,8 +281,15 @@ void TiledPage::prepare(bool goingDown, bool goingLeft, const SkIRect& tileBound
m_expandedTileBounds.fRight = lastTileX;
m_expandedTileBounds.fBottom = lastTileY;
+ if (nbTilesHeight * nbTilesWidth > TilesManager::getMaxTextureAllocation() + 1) {
+ XLOGC("ERROR: We don't have enough tiles for this page!"
+ " nbTilesHeight %d nbTilesWidth %d", nbTilesHeight, nbTilesWidth);
+ return;
+ }
for (int i = 0; i < nbTilesHeight; i++)
prepareRow(goingLeft, nbTilesWidth, firstTileX, firstTileY + i, tileBounds);
+
+ m_prepare = true;
}
bool TiledPage::ready(const SkIRect& tileBounds, float scale)