From bd3f93b66934582acd0b6c70bcf60ca643b36ead Mon Sep 17 00:00:00 2001
From: Chris Craik <ccraik@google.com>
Date: Thu, 10 May 2012 13:45:37 -0700
Subject: dirty all tiles when entering/exiting single surface mode

bug:6471089

Change-Id: I609a75d028ec9fa7b26be90d38b116a9766c4f21
---
 .../WebCore/platform/graphics/android/GLWebViewState.cpp  |  4 +++-
 .../WebCore/platform/graphics/android/rendering/Tile.cpp  | 14 ++++++++++++++
 Source/WebCore/platform/graphics/android/rendering/Tile.h |  2 ++
 .../platform/graphics/android/rendering/TilesManager.cpp  | 15 +++++++++++++++
 .../platform/graphics/android/rendering/TilesManager.h    |  3 +++
 5 files changed, 37 insertions(+), 1 deletion(-)

(limited to 'Source')

diff --git a/Source/WebCore/platform/graphics/android/GLWebViewState.cpp b/Source/WebCore/platform/graphics/android/GLWebViewState.cpp
index bdd8028..1fe30de 100644
--- a/Source/WebCore/platform/graphics/android/GLWebViewState.cpp
+++ b/Source/WebCore/platform/graphics/android/GLWebViewState.cpp
@@ -369,8 +369,10 @@ int GLWebViewState::drawGL(IntRect& invScreenRect, SkRect& visibleContentRect,
     nbTexturesNeeded.full += nbTexturesForImages;
     nbTexturesNeeded.clipped += nbTexturesForImages;
 
-    if (setLayersRenderingMode(nbTexturesNeeded))
+    if (setLayersRenderingMode(nbTexturesNeeded)) {
+        TilesManager::instance()->dirtyAllTiles();
         returnFlags |= uirenderer::DrawGlInfo::kStatusDraw | uirenderer::DrawGlInfo::kStatusInvoke;
+    }
 
     glBindBuffer(GL_ARRAY_BUFFER, 0);
 
diff --git a/Source/WebCore/platform/graphics/android/rendering/Tile.cpp b/Source/WebCore/platform/graphics/android/rendering/Tile.cpp
index 3af05f4..2e2c397 100644
--- a/Source/WebCore/platform/graphics/android/rendering/Tile.cpp
+++ b/Source/WebCore/platform/graphics/android/rendering/Tile.cpp
@@ -146,6 +146,13 @@ bool Tile::removeTexture(TileTexture* texture)
     return true;
 }
 
+void Tile::markAsDirty()
+{
+    android::AutoMutex lock(m_atomicSync);
+    m_dirtyArea.setEmpty(); // empty dirty rect prevents fast blit path
+    markAsDirtyInternal();
+}
+
 void Tile::markAsDirty(const SkRegion& dirtyArea)
 {
     if (dirtyArea.isEmpty())
@@ -171,6 +178,13 @@ void Tile::markAsDirty(const SkRegion& dirtyArea)
     if (!intersect)
         return;
 
+    markAsDirtyInternal();
+}
+
+void Tile::markAsDirtyInternal()
+{
+    // NOTE: callers must hold lock on m_atomicSync
+
     m_dirty = true;
     if (m_state == UpToDate) {
         // We only mark a tile as unpainted in 'markAsDirty' if its status is
diff --git a/Source/WebCore/platform/graphics/android/rendering/Tile.h b/Source/WebCore/platform/graphics/android/rendering/Tile.h
index 9697b61..4c8052c 100644
--- a/Source/WebCore/platform/graphics/android/rendering/Tile.h
+++ b/Source/WebCore/platform/graphics/android/rendering/Tile.h
@@ -114,6 +114,7 @@ public:
                            SkRect& realTileRect);
     bool isTileVisible(const IntRect& viewTileBounds);
 
+    void markAsDirty();
     void markAsDirty(const SkRegion& dirtyArea);
     bool isDirty();
     const SkRegion& dirtyArea() { return m_dirtyArea; }
@@ -140,6 +141,7 @@ public:
     virtual bool removeTexture(TileTexture* texture);
 
 private:
+    void markAsDirtyInternal();
     void validatePaint();
 
     int m_x;
diff --git a/Source/WebCore/platform/graphics/android/rendering/TilesManager.cpp b/Source/WebCore/platform/graphics/android/rendering/TilesManager.cpp
index 6e22d25..66c4bf3 100644
--- a/Source/WebCore/platform/graphics/android/rendering/TilesManager.cpp
+++ b/Source/WebCore/platform/graphics/android/rendering/TilesManager.cpp
@@ -235,6 +235,21 @@ void TilesManager::gatherTexturesNumbers(int* nbTextures, int* nbAllocatedTextur
     }
 }
 
+void TilesManager::dirtyTexturesVector(WTF::Vector<TileTexture*>& textures)
+{
+    for (unsigned int i = 0; i < textures.size(); i++) {
+        Tile* currentOwner = static_cast<Tile*>(textures[i]->owner());
+        if (currentOwner)
+            currentOwner->markAsDirty();
+    }
+}
+
+void TilesManager::dirtyAllTiles()
+{
+    dirtyTexturesVector(m_textures);
+    dirtyTexturesVector(m_tilesTextures);
+}
+
 void TilesManager::printTextures()
 {
 #ifdef DEBUG
diff --git a/Source/WebCore/platform/graphics/android/rendering/TilesManager.h b/Source/WebCore/platform/graphics/android/rendering/TilesManager.h
index 295acf6..5ad508c 100644
--- a/Source/WebCore/platform/graphics/android/rendering/TilesManager.h
+++ b/Source/WebCore/platform/graphics/android/rendering/TilesManager.h
@@ -77,6 +77,8 @@ public:
 
     TileTexture* getAvailableTexture(Tile* owner);
 
+    void dirtyAllTiles();
+
     void printTextures();
 
     // m_highEndGfx is written/read only on UI thread, no need for a lock.
@@ -164,6 +166,7 @@ private:
     void discardTexturesVector(unsigned long long sparedDrawCount,
                                WTF::Vector<TileTexture*>& textures,
                                bool deallocateGLTextures);
+    void dirtyTexturesVector(WTF::Vector<TileTexture*>& textures);
     void markAllGLTexturesZero();
     bool updateContextIfChanged();
     int getMaxTextureAllocation();
-- 
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