Initial texture data is never flipped when uploaded.

The first bytes of the data always refer to the pixel accessed by texture coord (0, 0).

Change-Id: I708702d90f35b3bc896a48c3c3fd6a0be73f505a
Reviewed-on: https://skia-review.googlesource.com/112261
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/tools/gpu/ProxyUtils.cpp b/tools/gpu/ProxyUtils.cpp
new file mode 100644
index 0000000000..e02bf5fd26
--- /dev/null
+++ b/tools/gpu/ProxyUtils.cpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "ProxyUtils.h"
+#include "GrContextPriv.h"
+#include "GrDrawingManager.h"
+#include "GrProxyProvider.h"
+
+namespace sk_gpu_test {
+
+sk_sp<GrTextureProxy> MakeTextureProxyFromData(GrContext* context, bool isRT, int width, int height,
+                                               GrColorType ct, GrSRGBEncoded srgbEncoded,
+                                               GrSurfaceOrigin origin, const void* data,
+                                               size_t rowBytes) {
+    GrSurfaceDesc desc;
+    desc.fConfig = GrColorTypeToPixelConfig(ct, srgbEncoded);
+    desc.fWidth = width;
+    desc.fHeight = height;
+    desc.fFlags = isRT ? kRenderTarget_GrSurfaceFlag : kNone_GrSurfaceFlags;
+    auto proxy = context->contextPriv().proxyProvider()->createProxy(
+            desc, origin, SkBackingFit::kExact, SkBudgeted::kYes);
+    if (!proxy) {
+        return nullptr;
+    }
+    auto sContext = context->contextPriv().makeWrappedSurfaceContext(proxy, nullptr);
+    if (!sContext) {
+        return nullptr;
+    }
+    if (!context->contextPriv().writeSurfacePixels(sContext.get(), 0, 0, width, height, ct, nullptr,
+                                                   data, rowBytes)) {
+        return nullptr;
+    }
+    return proxy;
+}
+
+}  // namespace sk_gpu_test