Implement an SkImage backed by a Android hardware buffer

Create a new SkImage public API to make an image from an Android
hardware buffer. Implementation is using a SkImageGenerator
derived class GrAndroidBufferImageGenerator.
A new EGLImage texture is created, which is then wrapped with
GrTextureProxy.

Bug: skia:
Change-Id: I610a4c5a58198686ce7c03e9a0adad3f9d2342e0
Reviewed-on: https://skia-review.googlesource.com/17789
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Stan Iliev <stani@google.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/image/SkImage_Gpu.cpp b/src/image/SkImage_Gpu.cpp
index efdd2d7468..b1eac9736c 100644
--- a/src/image/SkImage_Gpu.cpp
+++ b/src/image/SkImage_Gpu.cpp
@@ -12,6 +12,9 @@
 #include "SkAutoPixmapStorage.h"
 #include "GrBackendSurface.h"
 #include "GrBackendTextureImageGenerator.h"
+#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
+#include "GrAHardwareBufferImageGenerator.h"
+#endif
 #include "GrBitmapTextureMaker.h"
 #include "GrCaps.h"
 #include "GrContext.h"
@@ -502,6 +505,14 @@ sk_sp<SkImage> SkImage::MakeCrossContextFromEncoded(GrContext* context, sk_sp<Sk
     return SkImage::MakeFromGenerator(std::move(gen));
 }
 
+#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
+sk_sp<SkImage> SkImage::MakeFromAHardwareBuffer(AHardwareBuffer* graphicBuffer, SkAlphaType at,
+                                               sk_sp<SkColorSpace> cs) {
+    auto gen = GrAHardwareBufferImageGenerator::Make(graphicBuffer, at, cs);
+    return SkImage::MakeFromGenerator(std::move(gen));
+}
+#endif
+
 sk_sp<SkImage> SkImage::makeNonTextureImage() const {
     if (!this->isTextureBacked()) {
         return sk_ref_sp(const_cast<SkImage*>(this));