commit 83c17fa56b23159166394cb3feb431ffafbbab48
author robertphillips <robertphillips@google.com> Fri Mar 18 08:14:27 2016 -0700
committer Commit bot <commit-bot@chromium.org> Fri Mar 18 08:14:27 2016 -0700
tree 5a13d5597db58b5baccd2ac599706e1c4f24a8bd
parent 2b1b40e11afc41452b4d2f74cdebb1b6e6f7cc96

Add SkSpecialImage::makeTextureImage entry point

This is calved off of: https://codereview.chromium.org/1785643003 (Switch SkBlurImageFilter over to new onFilterImage interface)

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1813813002

Committed: https://skia.googlesource.com/skia/+/05849018c85403a34b88819db1c4bcf713b70a2b

Review URL: https://codereview.chromium.org/1813813002

src/core/SkSpecialImage.cpp

diff --git a/src/core/SkSpecialImage.cpp b/src/core/SkSpecialImage.cpp
index e90c655..991e163 100644
--- a/src/core/SkSpecialImage.cpp
+++ b/src/core/SkSpecialImage.cpp
@@ -4,10 +4,16 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file
  */
+#include "SkSpecialImage.h"
+
+#if SK_SUPPORT_GPU
+#include "GrTexture.h"
+#include "GrTextureParams.h"
+#include "SkGr.h"
+#endif
 
 #include "SkCanvas.h"
 #include "SkImage_Base.h"
-#include "SkSpecialImage.h"
 #include "SkSpecialSurface.h"
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -42,6 +48,38 @@
     return static_cast<const SkSpecialImage_Base*>(image);
 }
 
+sk_sp<SkSpecialImage> SkSpecialImage::makeTextureImage(SkImageFilter::Proxy* proxy,
+                                                       GrContext* context) {
+#if SK_SUPPORT_GPU
+    if (!context) {
+        return nullptr;
+    }
+    if (GrTexture* peek = as_SIB(this)->peekTexture()) {
+        return peek->getContext() == context ? sk_sp<SkSpecialImage>(SkRef(this)) : nullptr;
+    }
+
+    SkBitmap bmp;
+    if (!this->internal_getBM(&bmp)) {
+        return nullptr;
+    }
+
+    SkAutoTUnref<GrTexture> resultTex(
+        GrRefCachedBitmapTexture(context, bmp, GrTextureParams::ClampNoFilter()));
+    if (!resultTex) {
+        return nullptr;
+    }
+
+    SkAlphaType at = this->isOpaque() ? kOpaque_SkAlphaType : kPremul_SkAlphaType;
+
+    return SkSpecialImage::MakeFromGpu(proxy,
+                                       SkIRect::MakeWH(resultTex->width(), resultTex->height()),
+                                       this->uniqueID(),
+                                       resultTex, at);
+#else
+    return nullptr;
+#endif
+}
+
 void SkSpecialImage::draw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) const {
     return as_SIB(this)->onDraw(canvas, x, y, paint);
 }