More framework support for TransferBuffers

src/gpu/GrGpu.cpp

Index: src/gpu/GrGpu.cpp
diff --git a/src/gpu/GrGpu.cpp b/src/gpu/GrGpu.cpp
index a9b283f3cec8a836a743a2078bd5d6a95da31ada..328b07084434c4dd77601d8c4f4f2bc058b6fea7 100644
--- a/src/gpu/GrGpu.cpp
+++ b/src/gpu/GrGpu.cpp
@@ -336,6 +336,23 @@ bool GrGpu::writePixels(GrSurface* surface,
     return false;
 }
 
+bool GrGpu::transferPixels(GrSurface* surface,
+                           int left, int top, int width, int height,
+                           GrPixelConfig config, GrTransferBuffer* buffer,
+                           size_t offset, size_t rowBytes) {
+    if (!buffer) {

[bsalomon, 2015/12/18 15:24:38]

|| !surface?

[jvanverth1, 2016/01/04 21:24:09]

Done.

+        return false;
+    }
+
+    this->handleDirtyContext();
+    if (this->onTransferPixels(surface, left, top, width, height, config, 
+                               buffer, offset, rowBytes)) {
+        fStats.incTextureUploads();

[bsalomon, 2015/12/18 15:24:38]

Worth tracking transfers differently from uploads? incTransfersToTexture()?

[jvanverth1, 2016/01/04 21:24:09]

Done.

+        return true;
+    }
+    return false;
+}
+
 void GrGpu::resolveRenderTarget(GrRenderTarget* target) {
     SkASSERT(target);
     this->handleDirtyContext();