Bmp Image Decoding

src/codec/SkCodec.cpp

Index: src/codec/SkCodec.cpp
diff --git a/src/codec/SkCodec.cpp b/src/codec/SkCodec.cpp
index 69d95a41da24be0231cdd32b8719d2b1d6ea3747..a880fb42fd96885bbca59e41a8e729a78a79f3bd 100644
--- a/src/codec/SkCodec.cpp
+++ b/src/codec/SkCodec.cpp
@@ -7,23 +7,33 @@
 
 #include "SkCodec.h"
 #include "SkData.h"
+#include "SkCodec_libbmp.h"
 #include "SkCodec_libpng.h"
 #include "SkStream.h"
 
+struct DecoderProc {
+  bool (*IsFormat)(SkStream*);
+  SkCodec* (*NewFromStream)(SkStream*);
+};
+
+static const DecoderProc gDecoderProcs[] = {
+  { SkPngCodec::IsPng, SkPngCodec::NewFromStream },
+  { SkBmpCodec::IsBmp, SkBmpCodec::NewFromStream }
+};
+
 SkCodec* SkCodec::NewFromStream(SkStream* stream) {
     if (!stream) {
         return NULL;
     }
-    SkAutoTDelete<SkStream> streamDeleter(stream);
-    const bool isPng = SkPngCodec::IsPng(stream);
-    if (!stream->rewind()) {
+    for (DecoderProc proc : gDecoderProcs) {
+      const bool correctFormat = proc.IsFormat(stream);
+      if (!stream->rewind()) {
         return NULL;
+      }
+      if (correctFormat) {
+        return proc.NewFromStream(stream);
+      }
     }
-    if (isPng) {
-        streamDeleter.detach();
-        return SkPngCodec::NewFromStream(stream);
-    }
-    // TODO: Check other image types.
     return NULL;
 }