Revert "fix [2793164] Spam 2x/second with TOT master in SurfaceFlinger"

This reverts commit 081bc5c47d8a980e6eafa70ddafcd89981586391.

14 files changed, 134 insertions, 370 deletions

diff --git a/libs/surfaceflinger/Android.mk b/libs/surfaceflinger/Android.mk
index b0229c0975c9..0879a66de4f9 100644
--- a/libs/surfaceflinger/Android.mk
+++ b/libs/surfaceflinger/Android.mk
@@ -6,7 +6,6 @@ LOCAL_SRC_FILES:= \
     DisplayHardware/DisplayHardware.cpp \
     DisplayHardware/DisplayHardwareBase.cpp \
     BlurFilter.cpp.arm \
-    GLExtensions.cpp \
     Layer.cpp \
     LayerBase.cpp \
     LayerBuffer.cpp \
diff --git a/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp b/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp
index 2eac0a80a08b..51de1da723ef 100644
--- a/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp
+++ b/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp
@@ -40,8 +40,6 @@
 #include <hardware/overlay.h>
 #include <hardware/gralloc.h>
 
-#include "GLExtensions.h"
-
 using namespace android;
 
 
@@ -75,8 +73,7 @@ void checkEGLErrors(const char* token)
 DisplayHardware::DisplayHardware(
         const sp<SurfaceFlinger>& flinger,
         uint32_t dpy)
-    : DisplayHardwareBase(flinger, dpy),
-      mFlags(0)
+    : DisplayHardwareBase(flinger, dpy), mFlags(0)
 {
     init(dpy);
 }
@@ -100,9 +97,6 @@ void DisplayHardware::init(uint32_t dpy)
 {
     mNativeWindow = new FramebufferNativeWindow();
     framebuffer_device_t const * fbDev = mNativeWindow->getDevice();
-    mDpiX = mNativeWindow->xdpi;
-    mDpiY = mNativeWindow->ydpi;
-    mRefreshRate = fbDev->fps;
 
     mOverlayEngine = NULL;
     hw_module_t const* module;
@@ -110,11 +104,6 @@ void DisplayHardware::init(uint32_t dpy)
         overlay_control_open(module, &mOverlayEngine);
     }
 
-    EGLint w, h, dummy;
-    EGLint numConfigs=0;
-    EGLSurface surface;
-    EGLContext context;
-
     // initialize EGL
     EGLint attribs[] = {
             EGL_SURFACE_TYPE,   EGL_WINDOW_BIT,
@@ -132,6 +121,11 @@ void DisplayHardware::init(uint32_t dpy)
         }
     }
 
+    EGLint w, h, dummy;
+    EGLint numConfigs=0;
+    EGLSurface surface;
+    EGLContext context;
+
     // TODO: all the extensions below should be queried through
     // eglGetProcAddress().
 
@@ -150,6 +144,22 @@ void DisplayHardware::init(uint32_t dpy)
     eglGetConfigAttrib(display, config, EGL_BLUE_SIZE,  &b);
     eglGetConfigAttrib(display, config, EGL_ALPHA_SIZE, &a);
 
+    /*
+     * Gather EGL extensions
+     */
+
+    const char* const egl_extensions = eglQueryString(
+            display, EGL_EXTENSIONS);
+    
+    LOGI("EGL informations:");
+    LOGI("# of configs : %d", numConfigs);
+    LOGI("vendor    : %s", eglQueryString(display, EGL_VENDOR));
+    LOGI("version   : %s", eglQueryString(display, EGL_VERSION));
+    LOGI("extensions: %s", egl_extensions);
+    LOGI("Client API: %s", eglQueryString(display, EGL_CLIENT_APIS)?:"Not Supported");
+    LOGI("EGLSurface: %d-%d-%d-%d, config=%p", r, g, b, a, config);
+    
+
     if (mNativeWindow->isUpdateOnDemand()) {
         mFlags |= PARTIAL_UPDATES;
     }
@@ -164,8 +174,6 @@ void DisplayHardware::init(uint32_t dpy)
      */
 
     surface = eglCreateWindowSurface(display, config, mNativeWindow.get(), NULL);
-    eglQuerySurface(display, surface, EGL_WIDTH,  &mWidth);
-    eglQuerySurface(display, surface, EGL_HEIGHT, &mHeight);
 
     if (mFlags & PARTIAL_UPDATES) {
         // if we have partial updates, we definitely don't need to
@@ -179,6 +187,31 @@ void DisplayHardware::init(uint32_t dpy)
             mFlags |= BUFFER_PRESERVED;
         }
     }
+
+    eglQuerySurface(display, surface, EGL_WIDTH,  &mWidth);
+    eglQuerySurface(display, surface, EGL_HEIGHT, &mHeight);
+
+#ifdef EGL_ANDROID_swap_rectangle    
+    if (strstr(egl_extensions, "EGL_ANDROID_swap_rectangle")) {
+        if (eglSetSwapRectangleANDROID(display, surface,
+                0, 0, mWidth, mHeight) == EGL_TRUE) {
+            // This could fail if this extension is not supported by this
+            // specific surface (of config)
+            mFlags |= SWAP_RECTANGLE;
+        }
+    }
+    // when we have the choice between PARTIAL_UPDATES and SWAP_RECTANGLE
+    // choose PARTIAL_UPDATES, which should be more efficient
+    if (mFlags & PARTIAL_UPDATES)
+        mFlags &= ~SWAP_RECTANGLE;
+#endif
+    
+
+    LOGI("flags     : %08x", mFlags);
+    
+    mDpiX = mNativeWindow->xdpi;
+    mDpiY = mNativeWindow->ydpi;
+    mRefreshRate = fbDev->fps; 
     
     /* Read density from build-specific ro.sf.lcd_density property
      * except if it is overridden by qemu.sf.lcd_density.
@@ -201,67 +234,49 @@ void DisplayHardware::init(uint32_t dpy)
     
     context = eglCreateContext(display, config, NULL, NULL);
     
-    mDisplay = display;
-    mConfig  = config;
-    mSurface = surface;
-    mContext = context;
-    mFormat  = fbDev->format;
-    mPageFlipCount = 0;
-
     /*
      * Gather OpenGL ES extensions
      */
 
     eglMakeCurrent(display, surface, surface, context);
-
-    GLExtensions& extensions(GLExtensions::getInstance());
-    extensions.initWithGLStrings(
-            glGetString(GL_VENDOR),
-            glGetString(GL_RENDERER),
-            glGetString(GL_VERSION),
-            glGetString(GL_EXTENSIONS),
-            eglQueryString(display, EGL_VENDOR),
-            eglQueryString(display, EGL_VERSION),
-            eglQueryString(display, EGL_EXTENSIONS));
+    const char* const  gl_extensions = (const char*)glGetString(GL_EXTENSIONS);
+    const char* const  gl_renderer = (const char*)glGetString(GL_RENDERER);
+    LOGI("OpenGL informations:");
+    LOGI("vendor    : %s", glGetString(GL_VENDOR));
+    LOGI("renderer  : %s", gl_renderer);
+    LOGI("version   : %s", glGetString(GL_VERSION));
+    LOGI("extensions: %s", gl_extensions);
 
     glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize);
     glGetIntegerv(GL_MAX_VIEWPORT_DIMS, &mMaxViewportDims);
+    LOGI("GL_MAX_TEXTURE_SIZE = %d", mMaxTextureSize);
+    LOGI("GL_MAX_VIEWPORT_DIMS = %d", mMaxViewportDims);
 
 
-#ifdef EGL_ANDROID_swap_rectangle
-    if (extensions.hasExtension("EGL_ANDROID_swap_rectangle")) {
-        if (eglSetSwapRectangleANDROID(display, surface,
-                0, 0, mWidth, mHeight) == EGL_TRUE) {
-            // This could fail if this extension is not supported by this
-            // specific surface (of config)
-            mFlags |= SWAP_RECTANGLE;
-        }
+    if (strstr(gl_extensions, "GL_ARB_texture_non_power_of_two")) {
+        mFlags |= NPOT_EXTENSION;
     }
-    // when we have the choice between PARTIAL_UPDATES and SWAP_RECTANGLE
-    // choose PARTIAL_UPDATES, which should be more efficient
-    if (mFlags & PARTIAL_UPDATES)
-        mFlags &= ~SWAP_RECTANGLE;
+#ifdef EGL_ANDROID_image_native_buffer
+    if (strstr( gl_extensions, "GL_OES_EGL_image") &&
+        (strstr(egl_extensions, "EGL_KHR_image_base") || 
+                strstr(egl_extensions, "EGL_KHR_image")) &&
+        strstr(egl_extensions, "EGL_ANDROID_image_native_buffer")) {
+        mFlags |= DIRECT_TEXTURE;
+    }
+#else
+#warning "EGL_ANDROID_image_native_buffer not supported"
 #endif
 
-    LOGI("EGL informations:");
-    LOGI("# of configs : %d", numConfigs);
-    LOGI("vendor    : %s", extensions.getEglVendor());
-    LOGI("version   : %s", extensions.getEglVersion());
-    LOGI("extensions: %s", extensions.getEglExtension());
-    LOGI("Client API: %s", eglQueryString(display, EGL_CLIENT_APIS)?:"Not Supported");
-    LOGI("EGLSurface: %d-%d-%d-%d, config=%p", r, g, b, a, config);
-
-    LOGI("OpenGL informations:");
-    LOGI("vendor    : %s", extensions.getVendor());
-    LOGI("renderer  : %s", extensions.getRenderer());
-    LOGI("version   : %s", extensions.getVersion());
-    LOGI("extensions: %s", extensions.getExtension());
-    LOGI("GL_MAX_TEXTURE_SIZE = %d", mMaxTextureSize);
-    LOGI("GL_MAX_VIEWPORT_DIMS = %d", mMaxViewportDims);
-    LOGI("flags = %08x", mFlags);
 
     // Unbind the context from this thread
     eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+
+    mDisplay = display;
+    mConfig  = config;
+    mSurface = surface;
+    mContext = context;
+    mFormat  = fbDev->format;
+    mPageFlipCount = 0;
 }
 
 /*
diff --git a/libs/surfaceflinger/DisplayHardware/DisplayHardware.h b/libs/surfaceflinger/DisplayHardware/DisplayHardware.h
index 66bf5215d5d6..ebd7c4271c04 100644
--- a/libs/surfaceflinger/DisplayHardware/DisplayHardware.h
+++ b/libs/surfaceflinger/DisplayHardware/DisplayHardware.h
@@ -29,8 +29,6 @@
 
 #include <pixelflinger/pixelflinger.h>
 
-#include "GLExtensions.h"
-
 #include "DisplayHardware/DisplayHardwareBase.h"
 
 struct overlay_control_device_t;
@@ -45,11 +43,13 @@ class DisplayHardware : public DisplayHardwareBase
 {
 public:
     enum {
-        COPY_BITS_EXTENSION         = 0x00000008,
-        BUFFER_PRESERVED            = 0x00010000,
-        PARTIAL_UPDATES             = 0x00020000,   // video driver feature
-        SLOW_CONFIG                 = 0x00040000,   // software
-        SWAP_RECTANGLE              = 0x00080000,
+        DIRECT_TEXTURE          = 0x00000002,
+        COPY_BITS_EXTENSION     = 0x00000008,
+        NPOT_EXTENSION          = 0x00000100,
+        BUFFER_PRESERVED        = 0x00010000,
+        PARTIAL_UPDATES         = 0x00020000,   // video driver feature
+        SLOW_CONFIG             = 0x00040000,   // software
+        SWAP_RECTANGLE          = 0x00080000,
     };
 
     DisplayHardware(
diff --git a/libs/surfaceflinger/GLExtensions.cpp b/libs/surfaceflinger/GLExtensions.cpp
deleted file mode 100644
index 7f4f9fc074b4..000000000000
--- a/libs/surfaceflinger/GLExtensions.cpp
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-
-#include "GLExtensions.h"
-
-namespace android {
-// ---------------------------------------------------------------------------
-
-ANDROID_SINGLETON_STATIC_INSTANCE( GLExtensions )
-
-GLExtensions::GLExtensions()
-    : mHaveTextureExternal(false),
-      mHaveNpot(false),
-      mHaveDirectTexture(false)
-{
-}
-
-void GLExtensions::initWithGLStrings(
-        GLubyte const* vendor,
-        GLubyte const* renderer,
-        GLubyte const* version,
-        GLubyte const* extensions,
-        char const* egl_vendor,
-        char const* egl_version,
-        char const* egl_extensions)
-{
-    mVendor     = (char const*)vendor;
-    mRenderer   = (char const*)renderer;
-    mVersion    = (char const*)version;
-    mExtensions = (char const*)extensions;
-    mEglVendor     = egl_vendor;
-    mEglVersion    = egl_version;
-    mEglExtensions = egl_extensions;
-
-    char const* curr = (char const*)extensions;
-    char const* head = curr;
-    do {
-        head = strchr(curr, ' ');
-        String8 s(curr, head ? head-curr : strlen(curr));
-        if (s.length()) {
-            mExtensionList.add(s);
-        }
-        curr = head+1;
-    } while (head);
-
-    curr = egl_extensions;
-    head = curr;
-    do {
-        head = strchr(curr, ' ');
-        String8 s(curr, head ? head-curr : strlen(curr));
-        if (s.length()) {
-            mExtensionList.add(s);
-        }
-        curr = head+1;
-    } while (head);
-
-#ifdef EGL_ANDROID_image_native_buffer
-    if (hasExtension("GL_OES_EGL_image") &&
-        (hasExtension("EGL_KHR_image_base") || hasExtension("EGL_KHR_image")) &&
-        hasExtension("EGL_ANDROID_image_native_buffer"))
-    {
-        mHaveDirectTexture = true;
-    }
-#else
-#warning "EGL_ANDROID_image_native_buffer not supported"
-#endif
-
-    if (hasExtension("GL_ARB_texture_non_power_of_two")) {
-        mHaveNpot = true;
-    }
-
-    if (hasExtension("GL_OES_texture_external")) {
-        mHaveTextureExternal = true;
-    } else if (strstr(mRenderer.string(), "Adreno")) {
-        // hack for Adreno 200
-        mHaveTextureExternal = true;
-    }
-}
-
-bool GLExtensions::hasExtension(char const* extension) const
-{
-    const String8 s(extension);
-    return mExtensionList.indexOf(s) >= 0;
-}
-
-char const* GLExtensions::getVendor() const {
-    return mVendor.string();
-}
-
-char const* GLExtensions::getRenderer() const {
-    return mRenderer.string();
-}
-
-char const* GLExtensions::getVersion() const {
-    return mVersion.string();
-}
-
-char const* GLExtensions::getExtension() const {
-    return mExtensions.string();
-}
-
-char const* GLExtensions::getEglVendor() const {
-    return mEglVendor.string();
-}
-
-char const* GLExtensions::getEglVersion() const {
-    return mEglVersion.string();
-}
-
-char const* GLExtensions::getEglExtension() const {
-    return mEglExtensions.string();
-}
-
-
-// ---------------------------------------------------------------------------
-}; // namespace android
diff --git a/libs/surfaceflinger/GLExtensions.h b/libs/surfaceflinger/GLExtensions.h
deleted file mode 100644
index bbb284e76892..000000000000
--- a/libs/surfaceflinger/GLExtensions.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SF_GLEXTENSION_H
-#define ANDROID_SF_GLEXTENSION_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <utils/String8.h>
-#include <utils/SortedVector.h>
-#include <utils/Singleton.h>
-
-#include <EGL/egl.h>
-#include <EGL/eglext.h>
-#include <GLES/gl.h>
-#include <GLES/glext.h>
-
-namespace android {
-// ---------------------------------------------------------------------------
-
-class GLExtensions : public Singleton<GLExtensions>
-{
-    friend class Singleton<GLExtensions>;
-
-    bool mHaveTextureExternal   : 1;
-    bool mHaveNpot              : 1;
-    bool mHaveDirectTexture     : 1;
-
-    String8 mVendor;
-    String8 mRenderer;
-    String8 mVersion;
-    String8 mExtensions;
-    String8 mEglVendor;
-    String8 mEglVersion;
-    String8 mEglExtensions;
-    SortedVector<String8> mExtensionList;
-
-    GLExtensions(const GLExtensions&);
-    GLExtensions& operator = (const GLExtensions&);
-
-protected:
-    GLExtensions();
-
-public:
-    inline bool haveTextureExternal() const {
-        return mHaveTextureExternal;
-    }
-    inline bool haveNpot() const {
-        return mHaveNpot;
-    }
-    inline bool haveDirectTexture() const {
-        return mHaveDirectTexture;
-    }
-
-    void initWithGLStrings(
-            GLubyte const* vendor,
-            GLubyte const* renderer,
-            GLubyte const* version,
-            GLubyte const* extensions,
-            char const* egl_vendor,
-            char const* egl_version,
-            char const* egl_extensions);
-
-    char const* getVendor() const;
-    char const* getRenderer() const;
-    char const* getVersion() const;
-    char const* getExtension() const;
-
-    char const* getEglVendor() const;
-    char const* getEglVersion() const;
-    char const* getEglExtension() const;
-
-    bool hasExtension(char const* extension) const;
-};
-
-
-// ---------------------------------------------------------------------------
-}; // namespace android
-
-#endif // ANDROID_SF_GLEXTENSION_H
diff --git a/libs/surfaceflinger/Layer.cpp b/libs/surfaceflinger/Layer.cpp
index 758da4e87653..e606f713e07d 100644
--- a/libs/surfaceflinger/Layer.cpp
+++ b/libs/surfaceflinger/Layer.cpp
@@ -31,7 +31,6 @@
 #include <surfaceflinger/Surface.h>
 
 #include "clz.h"
-#include "GLExtensions.h"
 #include "Layer.h"
 #include "SurfaceFlinger.h"
 #include "DisplayHardware/DisplayHardware.h"
@@ -51,11 +50,10 @@ template <typename T> inline T min(T a, T b) {
 Layer::Layer(SurfaceFlinger* flinger,
         DisplayID display, const sp<Client>& client)
     :   LayerBaseClient(flinger, display, client),
-        mGLExtensions(GLExtensions::getInstance()),
         mNeedsBlending(true),
         mNeedsDithering(false),
         mSecure(false),
-        mTextureManager(),
+        mTextureManager(mFlags),
         mBufferManager(mTextureManager),
         mWidth(0), mHeight(0), mFixedSize(false)
 {
@@ -187,13 +185,17 @@ void Layer::reloadTexture(const Region& dirty)
         return;
     }
 
-    if (mGLExtensions.haveDirectTexture()) {
+#ifdef EGL_ANDROID_image_native_buffer
+    if (mFlags & DisplayHardware::DIRECT_TEXTURE) {
         EGLDisplay dpy(mFlinger->graphicPlane(0).getEGLDisplay());
         if (mBufferManager.initEglImage(dpy, buffer) != NO_ERROR) {
             // not sure what we can do here...
+            mFlags &= ~DisplayHardware::DIRECT_TEXTURE;
             goto slowpath;
         }
-    } else {
+    } else
+#endif
+    {
 slowpath:
         GGLSurface t;
         status_t res = buffer->lock(&t, GRALLOC_USAGE_SW_READ_OFTEN);
@@ -784,24 +786,19 @@ status_t Layer::BufferManager::initEglImage(EGLDisplay dpy,
     status_t err = NO_INIT;
     ssize_t index = mActiveBuffer;
     if (index >= 0) {
-        if (!mFailover) {
-            Image& texture(mBufferData[index].texture);
-            err = mTextureManager.initEglImage(&texture, dpy, buffer);
-            // if EGLImage fails, we switch to regular texture mode, and we
-            // free all resources associated with using EGLImages.
-            if (err == NO_ERROR) {
-                mFailover = false;
-                destroyTexture(&mFailoverTexture, dpy);
-            } else {
-                mFailover = true;
-                const size_t num = mNumBuffers;
-                for (size_t i=0 ; i<num ; i++) {
-                    destroyTexture(&mBufferData[i].texture, dpy);
-                }
-            }
+        Image& texture(mBufferData[index].texture);
+        err = mTextureManager.initEglImage(&texture, dpy, buffer);
+        // if EGLImage fails, we switch to regular texture mode, and we
+        // free all resources associated with using EGLImages.
+        if (err == NO_ERROR) {
+            mFailover = false;
+            destroyTexture(&mFailoverTexture, dpy);
         } else {
-            // we failed once, don't try again
-            err = BAD_VALUE;
+            mFailover = true;
+            const size_t num = mNumBuffers;
+            for (size_t i=0 ; i<num ; i++) {
+                destroyTexture(&mBufferData[i].texture, dpy);
+            }
         }
     }
     return err;
diff --git a/libs/surfaceflinger/Layer.h b/libs/surfaceflinger/Layer.h
index e1d283beddb7..dcb27a002bb3 100644
--- a/libs/surfaceflinger/Layer.h
+++ b/libs/surfaceflinger/Layer.h
@@ -37,10 +37,9 @@ namespace android {
 
 // ---------------------------------------------------------------------------
 
-class FreezeLock;
 class Client;
-class GLExtensions;
 class UserClient;
+class FreezeLock;
 
 // ---------------------------------------------------------------------------
 
@@ -207,7 +206,6 @@ private:
     // constants
     sp<Surface> mSurface;
     PixelFormat mFormat;
-    const GLExtensions& mGLExtensions;
     bool mNeedsBlending;
     bool mNeedsDithering;
 
diff --git a/libs/surfaceflinger/LayerBlur.cpp b/libs/surfaceflinger/LayerBlur.cpp
index 64a43c78f446..c1c440b966ca 100644
--- a/libs/surfaceflinger/LayerBlur.cpp
+++ b/libs/surfaceflinger/LayerBlur.cpp
@@ -147,9 +147,7 @@ void LayerBlur::onDraw(const Region& clip) const
     Region::const_iterator const end = clip.end();
     if (it != end) {
 #if defined(GL_OES_texture_external)
-        if (GLExtensions::getInstance().haveTextureExternal()) {
-            glDisable(GL_TEXTURE_EXTERNAL_OES);
-        }
+        glDisable(GL_TEXTURE_EXTERNAL_OES);
 #endif
         glEnable(GL_TEXTURE_2D);
         glBindTexture(GL_TEXTURE_2D, mTextureName);
@@ -183,7 +181,7 @@ void LayerBlur::onDraw(const Region& clip) const
             bl.data = (GGLubyte*)pixels;            
             blurFilter(&bl, 8, 2);
 
-            if (GLExtensions::getInstance().haveNpot()) {
+            if (mFlags & (DisplayHardware::NPOT_EXTENSION)) {
                 glTexImage2D(GL_TEXTURE_2D, 0, mReadFormat, w, h, 0,
                         mReadFormat, mReadType, pixels);
                 mWidthScale  = 1.0f / w;
diff --git a/libs/surfaceflinger/LayerBuffer.cpp b/libs/surfaceflinger/LayerBuffer.cpp
index 5f836366c431..732a4ec1dc5e 100644
--- a/libs/surfaceflinger/LayerBuffer.cpp
+++ b/libs/surfaceflinger/LayerBuffer.cpp
@@ -315,7 +315,8 @@ void LayerBuffer::Source::unregisterBuffers() {
 
 LayerBuffer::BufferSource::BufferSource(LayerBuffer& layer,
         const ISurface::BufferHeap& buffers)
-    : Source(layer), mStatus(NO_ERROR), mBufferSize(0)
+    : Source(layer), mStatus(NO_ERROR), mBufferSize(0),
+      mTextureManager(layer.mFlags)
 {
     if (buffers.heap == NULL) {
         // this is allowed, but in this case, it is illegal to receive
@@ -373,11 +374,11 @@ LayerBuffer::BufferSource::~BufferSource()
 
     if (mTexture.name != -1U) {
         // GL textures can only be destroyed from the GL thread
-        getFlinger()->mEventQueue.postMessage(
-                new MessageDestroyTexture(getFlinger(), mTexture.name) );
+        mLayer.mFlinger->mEventQueue.postMessage(
+                new MessageDestroyTexture(mLayer.mFlinger.get(), mTexture.name) );
     }
     if (mTexture.image != EGL_NO_IMAGE_KHR) {
-        EGLDisplay dpy(getFlinger()->graphicPlane(0).getEGLDisplay());
+        EGLDisplay dpy(mLayer.mFlinger->graphicPlane(0).getEGLDisplay());
         eglDestroyImageKHR(dpy, mTexture.image);
     }
 }
@@ -443,7 +444,7 @@ void LayerBuffer::BufferSource::onDraw(const Region& clip) const
     const Rect transformedBounds(mLayer.getTransformedBounds());
 
 #if defined(EGL_ANDROID_image_native_buffer)
-    if (GLExtensions::getInstance().haveDirectTexture()) {
+    if (mLayer.mFlags & DisplayHardware::DIRECT_TEXTURE) {
         err = INVALID_OPERATION;
         if (ourBuffer->supportsCopybit()) {
             copybit_device_t* copybit = mLayer.mBlitEngine;
@@ -548,7 +549,7 @@ status_t LayerBuffer::BufferSource::initTempBuffer() const
         dst.crop.r = w;
         dst.crop.b = h;
 
-        EGLDisplay dpy(getFlinger()->graphicPlane(0).getEGLDisplay());
+        EGLDisplay dpy(mLayer.mFlinger->graphicPlane(0).getEGLDisplay());
         err = mTextureManager.initEglImage(&mTexture, dpy, buffer);
     }
 
@@ -558,7 +559,7 @@ status_t LayerBuffer::BufferSource::initTempBuffer() const
 void LayerBuffer::BufferSource::clearTempBufferImage() const
 {
     // delete the image
-    EGLDisplay dpy(getFlinger()->graphicPlane(0).getEGLDisplay());
+    EGLDisplay dpy(mLayer.mFlinger->graphicPlane(0).getEGLDisplay());
     eglDestroyImageKHR(dpy, mTexture.image);
 
     // and the associated texture (recreate a name)
@@ -575,7 +576,7 @@ LayerBuffer::OverlaySource::OverlaySource(LayerBuffer& layer,
     : Source(layer), mVisibilityChanged(false),
     mOverlay(0), mOverlayHandle(0), mOverlayDevice(0), mOrientation(orientation)
 {
-    overlay_control_device_t* overlay_dev = getFlinger()->getOverlayEngine();
+    overlay_control_device_t* overlay_dev = mLayer.mFlinger->getOverlayEngine();
     if (overlay_dev == NULL) {
         // overlays not supported
         return;
@@ -606,7 +607,7 @@ LayerBuffer::OverlaySource::OverlaySource(LayerBuffer& layer,
 
     *overlayRef = new OverlayRef(mOverlayHandle, channel,
             mWidth, mHeight, mFormat, mWidthStride, mHeightStride);
-    getFlinger()->signalEvent();
+    mLayer.mFlinger->signalEvent();
 }
 
 LayerBuffer::OverlaySource::~OverlaySource()
diff --git a/libs/surfaceflinger/LayerBuffer.h b/libs/surfaceflinger/LayerBuffer.h
index 1c0bf830e1ff..413b8a45bc5f 100644
--- a/libs/surfaceflinger/LayerBuffer.h
+++ b/libs/surfaceflinger/LayerBuffer.h
@@ -47,7 +47,6 @@ class LayerBuffer : public LayerBaseClient
         virtual void postBuffer(ssize_t offset);
         virtual void unregisterBuffers();
         virtual void destroy() { }
-        SurfaceFlinger* getFlinger() const { return mLayer.mFlinger.get(); }
     protected:
         LayerBuffer& mLayer;
     };
diff --git a/libs/surfaceflinger/LayerDim.cpp b/libs/surfaceflinger/LayerDim.cpp
index c13b4b37da2c..906a583af835 100644
--- a/libs/surfaceflinger/LayerDim.cpp
+++ b/libs/surfaceflinger/LayerDim.cpp
@@ -112,17 +112,15 @@ void LayerDim::onDraw(const Region& clip) const
     Region::const_iterator const end = clip.end();
     if (s.alpha>0 && (it != end)) {
         const DisplayHardware& hw(graphicPlane(0).displayHardware());
-        const GLfloat alpha = s.alpha/255.0f;
+        const GGLfixed alpha = (s.alpha << 16)/255;
         const uint32_t fbHeight = hw.getHeight();
         glDisable(GL_DITHER);
         glEnable(GL_BLEND);
         glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
-        glColor4f(0, 0, 0, alpha);
-
+        glColor4x(0, 0, 0, alpha);
+        
 #if defined(GL_OES_texture_external)
-        if (GLExtensions::getInstance().haveTextureExternal()) {
-            glDisable(GL_TEXTURE_EXTERNAL_OES);
-        }
+        glDisable(GL_TEXTURE_EXTERNAL_OES);
 #endif
 #if defined(DIM_WITH_TEXTURE) && defined(EGL_ANDROID_image_native_buffer)
         if (sUseTexture) {
diff --git a/libs/surfaceflinger/SurfaceFlinger.cpp b/libs/surfaceflinger/SurfaceFlinger.cpp
index 23efd161fad7..96a541184edb 100644
--- a/libs/surfaceflinger/SurfaceFlinger.cpp
+++ b/libs/surfaceflinger/SurfaceFlinger.cpp
@@ -44,7 +44,6 @@
 #include <GLES/gl.h>
 
 #include "clz.h"
-#include "GLExtensions.h"
 #include "Layer.h"
 #include "LayerBlur.h"
 #include "LayerBuffer.h"
@@ -994,9 +993,7 @@ void SurfaceFlinger::drawWormhole() const
         glTexCoordPointer(2, GL_SHORT, 0, tcoords);
         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 #if defined(GL_OES_texture_external)
-        if (GLExtensions::getInstance().haveTextureExternal()) {
-            glDisable(GL_TEXTURE_EXTERNAL_OES);
-        }
+        glDisable(GL_TEXTURE_EXTERNAL_OES);
 #endif
         glEnable(GL_TEXTURE_2D);
         glBindTexture(GL_TEXTURE_2D, mWormholeTexName);
diff --git a/libs/surfaceflinger/TextureManager.cpp b/libs/surfaceflinger/TextureManager.cpp
index e4dd42fd5f3e..d9bdc6acec34 100644
--- a/libs/surfaceflinger/TextureManager.cpp
+++ b/libs/surfaceflinger/TextureManager.cpp
@@ -30,15 +30,14 @@
 
 #include "clz.h"
 #include "DisplayHardware/DisplayHardware.h"
-#include "GLExtensions.h"
 #include "TextureManager.h"
 
 namespace android {
 
 // ---------------------------------------------------------------------------
 
-TextureManager::TextureManager()
-    : mGLExtensions(GLExtensions::getInstance())
+TextureManager::TextureManager(uint32_t flags)
+    : mFlags(flags)
 {
 }
 
@@ -86,11 +85,9 @@ status_t TextureManager::initTexture(Image* pImage, int32_t format)
 
     GLenum target = GL_TEXTURE_2D;
 #if defined(GL_OES_texture_external)
-    if (GLExtensions::getInstance().haveTextureExternal()) {
-        if (format && isSupportedYuvFormat(format)) {
-            target = GL_TEXTURE_EXTERNAL_OES;
-            pImage->target = Texture::TEXTURE_EXTERNAL;
-        }
+    if (format && isSupportedYuvFormat(format)) {
+        target = GL_TEXTURE_EXTERNAL_OES;
+        pImage->target = Texture::TEXTURE_EXTERNAL;
     }
 #endif
 
@@ -211,7 +208,7 @@ status_t TextureManager::loadTexture(Texture* texture,
     /*
      * round to POT if needed
      */
-    if (!mGLExtensions.haveNpot()) {
+    if (!(mFlags & DisplayHardware::NPOT_EXTENSION)) {
         texture->NPOTAdjust = true;
     }
 
@@ -297,19 +294,14 @@ status_t TextureManager::loadTexture(Texture* texture,
 void TextureManager::activateTexture(const Texture& texture, bool filter)
 {
     const GLenum target = getTextureTarget(&texture);
-    if (target == Texture::TEXTURE_2D) {
-        glBindTexture(GL_TEXTURE_2D, texture.name);
-        glEnable(GL_TEXTURE_2D);
-#if defined(GL_OES_texture_external)
-        if (GLExtensions::getInstance().haveTextureExternal()) {
-            glDisable(GL_TEXTURE_EXTERNAL_OES);
-        }
-#endif
-    }
+
+    glBindTexture(target, texture.name);
+    glEnable(target);
+
 #if defined(GL_OES_texture_external)
-    else {
-        glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture.name);
-        glEnable(GL_TEXTURE_EXTERNAL_OES);
+    if (texture.target == Texture::TEXTURE_2D) {
+        glDisable(GL_TEXTURE_EXTERNAL_OES);
+    } else {
         glDisable(GL_TEXTURE_2D);
     }
 #endif
@@ -327,9 +319,7 @@ void TextureManager::deactivateTextures()
 {
     glDisable(GL_TEXTURE_2D);
 #if defined(GL_OES_texture_external)
-    if (GLExtensions::getInstance().haveTextureExternal()) {
-        glDisable(GL_TEXTURE_EXTERNAL_OES);
-    }
+    glDisable(GL_TEXTURE_EXTERNAL_OES);
 #endif
 }
 
diff --git a/libs/surfaceflinger/TextureManager.h b/libs/surfaceflinger/TextureManager.h
index c7c14e70bb44..1f7fe3f0cae3 100644
--- a/libs/surfaceflinger/TextureManager.h
+++ b/libs/surfaceflinger/TextureManager.h
@@ -32,7 +32,6 @@ namespace android {
 
 // ---------------------------------------------------------------------------
 
-class GLExtensions;
 class GraphicBuffer;
 
 // ---------------------------------------------------------------------------
@@ -62,7 +61,7 @@ struct Texture : public Image {
 // ---------------------------------------------------------------------------
 
 class TextureManager {
-    const GLExtensions& mGLExtensions;
+    uint32_t mFlags;
     static status_t initTexture(Image* texture, int32_t format);
     static status_t initTexture(Texture* texture);
     static bool isSupportedYuvFormat(int format);
@@ -70,7 +69,7 @@ class TextureManager {
     static GLenum getTextureTarget(const Image* pImage);
 public:
 
-    TextureManager();
+    TextureManager(uint32_t flags);
 
     // load bitmap data into the active buffer
     status_t loadTexture(Texture* texture,