Image filters: Replace all use of tryAllocPixels() with createDevice().

src/effects/SkBlurImageFilter.cpp

 /*
  * Copyright 2011 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkBlurImageFilter.h"
 #include "SkColorPriv.h"
+#include "SkDevice.h"
 #include "SkGpuBlurUtils.h"
 #include "SkOpts.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
 #if SK_SUPPORT_GPU
 #include "GrContext.h"
 #endif
 
 // This rather arbitrary-looking value results in a maximum box blur kernel size
 // of 1000 pixels on the raster path, which matches the WebKit and Firefox
@@ skipping 62 matching lines @@
     SkIRect srcBounds, dstBounds;
     if (!this->applyCropRect(ctx, proxy, src, &srcOffset, &srcBounds, &src)) {
         return false;
     }
 
     SkAutoLockPixels alp(src);
     if (!src.getPixels()) {
         return false;
     }
 
-    if (!dst->tryAllocPixels(src.info().makeWH(srcBounds.width(), srcBounds.height()))) {
+    SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(srcBounds.width(), srcBounds.height()));
+    if (!device) {
         return false;
     }
+    *dst = device->accessBitmap(false);
+    SkAutoLockPixels alp_dst(*dst);
     dst->getBounds(&dstBounds);
 
     SkVector sigma = mapSigma(fSigma, ctx.ctm());
 
     int kernelSizeX, kernelSizeX3, lowOffsetX, highOffsetX;
     int kernelSizeY, kernelSizeY3, lowOffsetY, highOffsetY;
     getBox3Params(sigma.x(), &kernelSizeX, &kernelSizeX3, &lowOffsetX, &highOffsetX);
     getBox3Params(sigma.y(), &kernelSizeY, &kernelSizeY3, &lowOffsetY, &highOffsetY);
 
     if (kernelSizeX < 0 || kernelSizeY < 0) {
         return false;
     }
 
     if (kernelSizeX == 0 && kernelSizeY == 0) {
         src.copyTo(dst, dst->colorType());
         offset->fX = srcBounds.fLeft;
         offset->fY = srcBounds.fTop;
         return true;
     }
 
-    SkBitmap temp;
-    if (!temp.tryAllocPixels(dst->info())) {
+    SkAutoTUnref<SkBaseDevice> tempDevice(proxy->createDevice(dst->width(), dst->height()));
+    if (!tempDevice) {
         return false;
     }
+    SkBitmap temp = tempDevice->accessBitmap(false);
+    SkAutoLockPixels alpTemp(temp);
 
     offset->fX = srcBounds.fLeft;
     offset->fY = srcBounds.fTop;
     srcBounds.offset(-srcOffset);
     const SkPMColor* s = src.getAddr32(srcBounds.left(), srcBounds.top());
     SkPMColor* t = temp.getAddr32(0, 0);
     SkPMColor* d = dst->getAddr32(0, 0);
     int w = dstBounds.width(), h = dstBounds.height();
     int sw = src.rowBytesAsPixels();
 
@@ skipping 99 matching lines @@
     str->appendf("SkBlurImageFilter: (");
     str->appendf("sigma: (%f, %f) input (", fSigma.fWidth, fSigma.fHeight);
 
     if (this->getInput(0)) {
         this->getInput(0)->toString(str);
     }
 
     str->append("))");
 }
 #endif