kill unused SkFlipPixelRef

Review URL: https://codereview.appspot.com/6949043

git-svn-id: http://skia.googlecode.com/svn/trunk@6781 2bbb7eff-a529-9590-31e7-b0007b416f81

2 files changed, 0 insertions, 127 deletions

diff --git a/src/images/SkFlipPixelRef.cpp b/src/images/SkFlipPixelRef.cpp
deleted file mode 100644
index 2e73ece5ac..0000000000
--- a/src/images/SkFlipPixelRef.cpp
+++ /dev/null
@@ -1,125 +0,0 @@
-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#include "SkFlipPixelRef.h"
-#include "SkFlattenableBuffers.h"
-#include "SkRegion.h"
-
-SkFlipPixelRef::SkFlipPixelRef(SkBitmap::Config config, int width, int height)
-: fFlipper(width, height) {
-    fConfig = config;
-    fSize = SkBitmap::ComputeSize(config, width, height);
-    fStorage = sk_malloc_throw(fSize << 1);
-    fPage0 = fStorage;
-    fPage1 = (char*)fStorage + fSize;
-}
-
-SkFlipPixelRef::~SkFlipPixelRef() {
-    sk_free(fStorage);
-}
-
-const SkRegion& SkFlipPixelRef::beginUpdate(SkBitmap* device) {
-    void*       writeAddr;
-    const void* readAddr;
-    this->getFrontBack(&readAddr, &writeAddr);
-
-    device->setConfig(fConfig, fFlipper.width(), fFlipper.height());
-    device->setPixels(writeAddr);
-
-    SkRegion    copyBits;
-    const SkRegion& dirty = fFlipper.update(&copyBits);
-
-    SkFlipPixelRef::CopyBitsFromAddr(*device, copyBits, readAddr);
-    return dirty;
-}
-
-void SkFlipPixelRef::endUpdate() {
-    this->swapPages();
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-void* SkFlipPixelRef::onLockPixels(SkColorTable** ct) {
-    fMutex.acquire();
-    *ct = NULL;
-    return fPage0;
-}
-
-void SkFlipPixelRef::onUnlockPixels() {
-    fMutex.release();
-}
-
-void SkFlipPixelRef::swapPages() {
-    fMutex.acquire();
-    SkTSwap<void*>(fPage0, fPage1);
-    this->notifyPixelsChanged();
-    fMutex.release();
-}
-
-void SkFlipPixelRef::flatten(SkFlattenableWriteBuffer& buffer) const {
-    this->INHERITED::flatten(buffer);
-    // only need to write page0
-    buffer.writeByteArray(fPage0, fSize);
-}
-
-SkFlipPixelRef::SkFlipPixelRef(SkFlattenableReadBuffer& buffer)
-        : INHERITED(buffer, NULL) {
-    fSize = buffer.getArrayCount();
-    fStorage = sk_malloc_throw(fSize << 1);
-    fPage0 = fStorage;
-    fPage1 = (char*)fStorage + fSize;
-    buffer.readByteArray(fPage0);
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-static void copyRect(const SkBitmap& dst, const SkIRect& rect,
-                     const void* srcAddr, int shift) {
-    const size_t offset = rect.fTop * dst.rowBytes() + (rect.fLeft << shift);
-    char* dstP = static_cast<char*>(dst.getPixels()) + offset;
-    const char* srcP = static_cast<const char*>(srcAddr) + offset;
-    const size_t rb = dst.rowBytes();
-    const size_t bytes = rect.width() << shift;
-
-    int height = rect.height();
-    while (--height >= 0) {
-        memcpy(dstP, srcP, bytes);
-        dstP += rb;
-        srcP += rb;
-    }
-}
-
-static int getShift(SkBitmap::Config config) {
-    switch (config) {
-        case SkBitmap::kARGB_8888_Config:
-            return 2;
-        case SkBitmap::kRGB_565_Config:
-        case SkBitmap::kARGB_4444_Config:
-            return 1;
-        case SkBitmap::kIndex8_Config:
-        case SkBitmap::kA8_Config:
-            return 0;
-        default:
-            return -1;  // signal not supported
-    }
-}
-
-void SkFlipPixelRef::CopyBitsFromAddr(const SkBitmap& dst, const SkRegion& clip,
-                                      const void* srcAddr) {
-    const int shift = getShift(dst.config());
-    if (shift < 0) {
-        return;
-    }
-
-    const SkIRect bounds = {0, 0, dst.width(), dst.height()};
-    SkRegion::Cliperator iter(clip, bounds);
-
-    while (!iter.done()) {
-        copyRect(dst, iter.rect(), srcAddr, shift);
-        iter.next();
-    }
-}
diff --git a/src/images/SkImages.cpp b/src/images/SkImages.cpp
index 28dfd7f615..0bcc33fa51 100644
--- a/src/images/SkImages.cpp
+++ b/src/images/SkImages.cpp
@@ -6,11 +6,9 @@
  */
 
 #include "SkFlattenable.h"
-#include "SkFlipPixelRef.h"
 #include "SkImageRef_GlobalPool.h"
 #include "SkImages.h"
 
 void SkImages::InitializeFlattenables() {
-    SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkFlipPixelRef)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkImageRef_GlobalPool)
 }