From f0e3a5c2ed05701bffd2e85c8c87337a9f5d2d52 Mon Sep 17 00:00:00 2001
From: Teng-Hui Zhu <ztenghui@google.com>
Date: Wed, 17 Aug 2011 14:55:16 -0700
Subject: refactor the nativeWindow handling in TransferQueue

bug:5161750

Change-Id: I33735f258abf850fa3afd7769385b38691365da3
---
 .../platform/graphics/android/TransferQueue.cpp    | 64 +++++++++-------------
 1 file changed, 26 insertions(+), 38 deletions(-)

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

diff --git a/Source/WebCore/platform/graphics/android/TransferQueue.cpp b/Source/WebCore/platform/graphics/android/TransferQueue.cpp
index 1a377f2..8b4b596 100644
--- a/Source/WebCore/platform/graphics/android/TransferQueue.cpp
+++ b/Source/WebCore/platform/graphics/android/TransferQueue.cpp
@@ -297,50 +297,38 @@ void TransferQueue::updateQueueWithBitmap(const TileRenderInfo* renderInfo,
              renderInfo->x, renderInfo->y);
         return;
     }
-    // Dequeue the Surface Texture.
-    sp<ANativeWindow> ANW = m_ANW;
-    if (!ANW.get()) {
+
+    // a) Dequeue the Surface Texture and write into the buffer
+    if (!m_ANW.get()) {
         XLOG("ERROR: ANW is null");
         return;
     }
-    ANativeWindowBuffer* anb;
-
-    int status = ANW->dequeueBuffer(ANW.get(), &anb);
-    GLUtils::checkSurfaceTextureError("dequeueBuffer", status);
-    // a) Update surface texture
-    sp<android::GraphicBuffer> buf(new android::GraphicBuffer(anb, false));
-    status |= ANW->lockBuffer(ANW.get(), buf->getNativeBuffer()); // Mutex Lock
-    GLUtils::checkSurfaceTextureError("lockBuffer", status);
-
-    // Fill the buffer with the content of the bitmap
-    uint8_t* img = 0;
-    status |= buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
-    GLUtils::checkSurfaceTextureError("lock", status);
-
-    if (status == NO_ERROR) {
-        int row, col;
-        int bpp = 4; // Now we only deal with RGBA8888 format.
-        int width = TilesManager::instance()->tileWidth();
-        int height = TilesManager::instance()->tileHeight();
-        if (!x && !y && bitmap.width() == width && bitmap.height() == height) {
-            bitmap.lockPixels();
-            uint8_t* bitmapOrigin = static_cast<uint8_t*>(bitmap.getPixels());
-            // Copied line by line since we need to handle the offsets and stride.
-            for (row = 0 ; row < bitmap.height(); row ++) {
-                uint8_t* dst = &(img[(buf->getStride() * (row + x) + y) * bpp]);
-                uint8_t* src = &(bitmapOrigin[bitmap.width() * row * bpp]);
-                memcpy(dst, src, bpp * bitmap.width());
-            }
-            bitmap.unlockPixels();
-        } else {
-            // TODO: implement the partial invalidate here!
-            XLOG("ERROR: don't expect to get here yet before we support partial inval");
+
+    ANativeWindow_Buffer buffer;
+    if (ANativeWindow_lock(m_ANW.get(), &buffer, 0))
+        return;
+
+    uint8_t* img = (uint8_t*)buffer.bits;
+    int row, col;
+    int bpp = 4; // Now we only deal with RGBA8888 format.
+    int width = TilesManager::instance()->tileWidth();
+    int height = TilesManager::instance()->tileHeight();
+    if (!x && !y && bitmap.width() == width && bitmap.height() == height) {
+        bitmap.lockPixels();
+        uint8_t* bitmapOrigin = static_cast<uint8_t*>(bitmap.getPixels());
+        // Copied line by line since we need to handle the offsets and stride.
+        for (row = 0 ; row < bitmap.height(); row ++) {
+            uint8_t* dst = &(img[(buffer.stride * (row + x) + y) * bpp]);
+            uint8_t* src = &(bitmapOrigin[bitmap.width() * row * bpp]);
+            memcpy(dst, src, bpp * bitmap.width());
         }
+        bitmap.unlockPixels();
+    } else {
+        // TODO: implement the partial invalidate here!
+        XLOG("ERROR: don't expect to get here yet before we support partial inval");
     }
-    buf->unlock();
 
-    status = ANW->queueBuffer(ANW.get(), buf->getNativeBuffer());
-    GLUtils::checkSurfaceTextureError("queueBuffer", status);
+    ANativeWindow_unlockAndPost(m_ANW.get());
 
     // b) After update the Surface Texture, now udpate the transfer queue info.
     addItemInTransferQueue(renderInfo);
-- 
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