Swizzling, except for premultiplying, done using libpng transforms

src/core/SkMallocPixelRef.cpp

Index: src/core/SkMallocPixelRef.cpp
diff --git a/src/core/SkMallocPixelRef.cpp b/src/core/SkMallocPixelRef.cpp
index 12aa1f63d6197c1e189e6ca877df4b3d7694d923..35075d8f58313bf3cdb1743067672b4ac552428f 100644
--- a/src/core/SkMallocPixelRef.cpp
+++ b/src/core/SkMallocPixelRef.cpp
@@ -53,15 +53,18 @@ SkMallocPixelRef* SkMallocPixelRef::NewAllocate(const SkImageInfo& info,
                                                 size_t requestedRowBytes,
                                                 SkColorTable* ctable) {
     if (!is_valid(info, ctable)) {
+        SkDebugf("failing 1\n");

[scroggo, 2015/06/30 20:50:04]

I think you didn't mean to include the changes to SkMallocPixelRef?

         return NULL;
     }
 
     // only want to permit 31bits of rowBytes
     int64_t minRB = (int64_t)info.minRowBytes64();
     if (minRB < 0 || !sk_64_isS32(minRB)) {
+        SkDebugf("failing 2\n");
         return NULL;    // allocation will be too large
     }
     if (requestedRowBytes > 0 && (int32_t)requestedRowBytes < minRB) {
+        SkDebugf("failing 3\n");
         return NULL;    // cannot meet requested rowbytes
     }
 
@@ -74,6 +77,7 @@ SkMallocPixelRef* SkMallocPixelRef::NewAllocate(const SkImageInfo& info,
 
     int64_t bigSize = (int64_t)info.height() * rowBytes;
     if (!sk_64_isS32(bigSize)) {
+        SkDebugf("failing 4\n");
         return NULL;
     }
 
@@ -81,6 +85,7 @@ SkMallocPixelRef* SkMallocPixelRef::NewAllocate(const SkImageInfo& info,
     SkASSERT(size >= info.getSafeSize(rowBytes));
     void* addr = sk_malloc_flags(size, 0);
     if (NULL == addr) {
+        SkDebugf("failing 5\n");
         return NULL;
     }