Implemented transparent gradients
R=vandebo@chromium.org, edisonn@google.com
Author: richardlin@chromium.org
Review URL: https://chromiumcodereview.appspot.com/18585002
git-svn-id: http://skia.googlecode.com/svn/trunk@10297 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/pdf/SkPDFGraphicState.h b/src/pdf/SkPDFGraphicState.h
index 64f34f8..84c4291 100644
--- a/src/pdf/SkPDFGraphicState.h
+++ b/src/pdf/SkPDFGraphicState.h
@@ -28,6 +28,11 @@
*/
class SkPDFGraphicState : public SkPDFDict {
public:
+ enum SkPDFSMaskMode {
+ kAlpha_SMaskMode,
+ kLuminosity_SMaskMode
+ };
+
virtual ~SkPDFGraphicState();
virtual void getResources(const SkTSet<SkPDFObject*>& knownResourceObjects,
@@ -51,11 +56,13 @@
/** Make a graphic state that only sets the passed soft mask. The
* reference count of the object is incremented and it is the caller's
* responsibility to unreference it when done.
- * @param sMask The form xobject to use as a soft mask.
- * @param invert Indicates if the alpha of the sMask should be inverted.
+ * @param sMask The form xobject to use as a soft mask.
+ * @param invert Indicates if the alpha of the sMask should be inverted.
+ * @param sMaskMode Whether to use alpha or luminosity for the sMask.
*/
static SkPDFGraphicState* GetSMaskGraphicState(SkPDFFormXObject* sMask,
- bool invert);
+ bool invert,
+ SkPDFSMaskMode sMaskMode);
/** Get a graphic state that only unsets the soft mask. The reference
* count of the object is incremented and it is the caller's responsibility