1 files changed, 62 insertions, 0 deletions
diff --git a/src/gpu/GrImageTextureMaker.cpp b/src/gpu/GrImageTextureMaker.cpp
new file mode 100644
index 0000000000..f4a311955d
--- /dev/null
+++ b/src/gpu/GrImageTextureMaker.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "GrImageTextureMaker.h"
+
+#include "GrContext.h"
+#include "GrGpuResourcePriv.h"
+#include "SkGrPriv.h"
+#include "SkImage_Base.h"
+#include "SkImageCacherator.h"
+#include "SkPixelRef.h"
+
+static bool cacher_is_alpha_only(const SkImageCacherator& cacher) {
+    return kAlpha_8_SkColorType == cacher.info().colorType();
+}
+
+GrImageTextureMaker::GrImageTextureMaker(GrContext* context, SkImageCacherator* cacher,
+                                         const SkImage* client, SkImage::CachingHint chint)
+    : INHERITED(context, cacher->info().width(), cacher->info().height(),
+                cacher_is_alpha_only(*cacher))
+    , fCacher(cacher)
+    , fClient(client)
+    , fCachingHint(chint) {
+    if (client) {
+        GrMakeKeyFromImageID(&fOriginalKey, client->uniqueID(),
+                             SkIRect::MakeWH(this->width(), this->height()));
+    }
+}
+
+GrTexture* GrImageTextureMaker::refOriginalTexture(bool willBeMipped,
+                                                   SkDestinationSurfaceColorMode colorMode) {
+    return fCacher->lockTexture(this->context(), fOriginalKey, fClient, fCachingHint, willBeMipped,
+                                colorMode);
+}
+
+void GrImageTextureMaker::makeCopyKey(const CopyParams& stretch, GrUniqueKey* paramsCopyKey,
+                                      SkDestinationSurfaceColorMode colorMode) {
+    if (fOriginalKey.isValid() && SkImage::kAllow_CachingHint == fCachingHint) {
+        SkImageCacherator::CachedFormat cacheFormat =
+            fCacher->chooseCacheFormat(colorMode, this->context()->caps());
+        GrUniqueKey cacheKey;
+        fCacher->makeCacheKeyFromOrigKey(fOriginalKey, cacheFormat, &cacheKey);
+        MakeCopyKeyFromOrigKey(cacheKey, stretch, paramsCopyKey);
+    }
+}
+
+void GrImageTextureMaker::didCacheCopy(const GrUniqueKey& copyKey) {
+    if (fClient) {
+        as_IB(fClient)->notifyAddedToCache();
+    }
+}
+
+SkAlphaType GrImageTextureMaker::alphaType() const {
+    return fCacher->info().alphaType();
+}
+sk_sp<SkColorSpace> GrImageTextureMaker::getColorSpace(SkDestinationSurfaceColorMode colorMode) {
+    return fCacher->getColorSpace(this->context(), colorMode);
+}