Assign default texture id of 0

Some logic depends on a default value of 0, which was not being
assigned.

Issue #7195815 chrome url bar is corrupted
Issue #7190656 Textures corrupted on mr1

Change-Id: I346b7b76e885bf8f04740e711fd88f917a5418c7

5 files changed, 13 insertions, 15 deletions

diff --git a/libs/hwui/Layer.cpp b/libs/hwui/Layer.cpp
index fb525ee..882e4bb 100644
--- a/libs/hwui/Layer.cpp
+++ b/libs/hwui/Layer.cpp
@@ -19,6 +19,7 @@
 #include <utils/Log.h>
 
 #include "Layer.h"
+#include "LayerRenderer.h"
 #include "OpenGLRenderer.h"
 #include "Caches.h"
 
@@ -46,14 +47,15 @@ Layer::~Layer() {
     if (mesh) delete mesh;
     if (meshIndices) delete meshIndices;
     if (colorFilter) Caches::getInstance().resourceCache.decrementRefcount(colorFilter);
-    if (fbo) Caches::getInstance().fboCache.put(fbo);
+    removeFbo();
     deleteTexture();
 }
 
-void Layer::freeResourcesLocked() {
-    if (colorFilter) {
-        Caches::getInstance().resourceCache.decrementRefcountLocked(colorFilter);
-        colorFilter = NULL;
+void Layer::removeFbo() {
+    if (fbo) {
+        LayerRenderer::flushLayer(this);
+        Caches::getInstance().fboCache.put(fbo);
+        fbo = 0;
     }
 }
 
diff --git a/libs/hwui/Layer.h b/libs/hwui/Layer.h
index 9b6205d..69be317 100644
--- a/libs/hwui/Layer.h
+++ b/libs/hwui/Layer.h
@@ -48,7 +48,7 @@ struct Layer {
     Layer(const uint32_t layerWidth, const uint32_t layerHeight);
     ~Layer();
 
-    void freeResourcesLocked();
+    void removeFbo();
 
     /**
      * Sets this layer's region to a rectangle. Computes the appropriate
diff --git a/libs/hwui/LayerRenderer.cpp b/libs/hwui/LayerRenderer.cpp
index 799aea3..f2e7f66 100644
--- a/libs/hwui/LayerRenderer.cpp
+++ b/libs/hwui/LayerRenderer.cpp
@@ -299,13 +299,6 @@ void LayerRenderer::destroyLayer(Layer* layer) {
         LAYER_RENDERER_LOGD("Recycling layer, %dx%d fbo = %d",
                 layer->getWidth(), layer->getHeight(), layer->getFbo());
 
-        GLuint fbo = layer->getFbo();
-        if (fbo) {
-            flushLayer(layer);
-            Caches::getInstance().fboCache.put(fbo);
-            layer->setFbo(0);
-        }
-
         if (!Caches::getInstance().layerCache.put(layer)) {
             LAYER_RENDERER_LOGD("  Destroyed!");
             Caches::getInstance().resourceCache.decrementRefcount(layer);
@@ -314,6 +307,7 @@ void LayerRenderer::destroyLayer(Layer* layer) {
 #if DEBUG_LAYER_RENDERER
             Caches::getInstance().layerCache.dump();
 #endif
+            layer->removeFbo();
             layer->region.clear();
         }
     }
diff --git a/libs/hwui/LayerRenderer.h b/libs/hwui/LayerRenderer.h
index 392f863..acedbcc 100644
--- a/libs/hwui/LayerRenderer.h
+++ b/libs/hwui/LayerRenderer.h
@@ -60,6 +60,8 @@ public:
     ANDROID_API static void destroyLayerDeferred(Layer* layer);
     ANDROID_API static bool copyLayer(Layer* layer, SkBitmap* bitmap);
 
+    static void flushLayer(Layer* layer);
+
 protected:
     virtual bool hasLayer();
     virtual Region* getRegion();
@@ -69,8 +71,6 @@ protected:
 private:
     void generateMesh();
 
-    static void flushLayer(Layer* layer);
-
     Layer* mLayer;
 }; // class LayerRenderer
 
diff --git a/libs/hwui/Texture.h b/libs/hwui/Texture.h
index 1adf2c7..03e2172 100644
--- a/libs/hwui/Texture.h
+++ b/libs/hwui/Texture.h
@@ -38,6 +38,8 @@ struct Texture {
 
         firstFilter = true;
         firstWrap = true;
+
+        id = 0;
     }
 
     void setWrap(GLenum wrap, bool bindTexture = false, bool force = false,