centralize encoding to SkData

Bug: skia:
Change-Id: If3a9a6de54cf76d03e4d159b54b07a4ea6d5cda9
Reviewed-on: https://skia-review.googlesource.com/83020
Reviewed-by: Leon Scroggins <scroggo@google.com>
Commit-Queue: Mike Reed <reed@google.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/include/core/SkImageEncoder.h b/include/core/SkImageEncoder.h
index 87d5170c69..a6d7cb8c68 100644
--- a/include/core/SkImageEncoder.h
+++ b/include/core/SkImageEncoder.h
@@ -9,6 +9,7 @@
 #define SkImageEncoder_DEFINED
 
 #include "SkBitmap.h"
+#include "SkData.h"
 #include "SkEncodedImageFormat.h"
 #include "SkStream.h"
 
@@ -33,6 +34,7 @@
  */
 SK_API bool SkEncodeImage(SkWStream* dst, const SkPixmap& src,
                           SkEncodedImageFormat format, int quality);
+
 /**
  * The following helper function wraps SkEncodeImage().
  */
@@ -41,4 +43,26 @@ inline bool SkEncodeImage(SkWStream* dst, const SkBitmap& src, SkEncodedImageFor
     return src.peekPixels(&pixmap) && SkEncodeImage(dst, pixmap, f, q);
 }
 
+/**
+ * Encode SkPixmap in the given binary image format.
+ *
+ * @param  src     source pixels.
+ * @param  format  image format, not all formats are supported.
+ * @param  quality range from 0-100, this is supported by jpeg and webp.
+ *                 higher values correspond to improved visual quality, but less compression.
+ *
+ * @return encoded data or nullptr if input is bad or format is unsupported.
+ *
+ * Will always return nullptr if Skia is compiled without image
+ * encoders.
+ *
+ * Note that webp encodes will use webp lossy compression.
+ */
+SK_API sk_sp<SkData> SkEncodePixmap(const SkPixmap& src, SkEncodedImageFormat format, int quality);
+
+/**
+ *  Helper that extracts the pixmap from the bitmap, and then calls SkEncodePixmap()
+ */
+SK_API sk_sp<SkData> SkEncodeBitmap(const SkBitmap& src, SkEncodedImageFormat format, int quality);
+
 #endif  // SkImageEncoder_DEFINED