Merge branch 'ANGLE-rollback'

This resolves #624

Note: Cherry-picked some fixes on top of the ANGLE version that we want to keep.

1 files changed, 60 insertions, 0 deletions

diff --git a/gfx/angle/src/libANGLE/renderer/Format.cpp b/gfx/angle/src/libANGLE/renderer/Format.cpp
new file mode 100644
index 000000000..e8883c6f3
--- /dev/null
+++ b/gfx/angle/src/libANGLE/renderer/Format.cpp
@@ -0,0 +1,60 @@
+//
+// Copyright 2016 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Format:
+//   A universal description of texture storage. Across multiple
+//   renderer back-ends, there are common formats and some distinct
+//   permutations, this enum encapsulates them all.
+
+#include "libANGLE/renderer/Format.h"
+
+#include "image_util/copyimage.h"
+
+using namespace rx;
+
+namespace angle
+{
+
+namespace
+{
+
+const FastCopyFunctionMap &GetFastCopyFunctionsMap(Format::ID formatID)
+{
+    switch (formatID)
+    {
+        case Format::ID::B8G8R8A8_UNORM:
+        {
+            static FastCopyFunctionMap fastCopyMap;
+            if (fastCopyMap.empty())
+            {
+                fastCopyMap[gl::FormatType(GL_RGBA, GL_UNSIGNED_BYTE)] = CopyBGRA8ToRGBA8;
+            }
+            return fastCopyMap;
+        }
+        default:
+        {
+            static FastCopyFunctionMap emptyMap;
+            return emptyMap;
+        }
+    }
+}
+
+}  // anonymous namespace
+
+Format::Format(ID id,
+               GLenum glFormat,
+               GLenum fboFormat,
+               MipGenerationFunction mipGen,
+               ColorReadFunction colorRead)
+    : id(id),
+      glInternalFormat(glFormat),
+      fboImplementationInternalFormat(fboFormat),
+      mipGenerationFunction(mipGen),
+      colorReadFunction(colorRead),
+      fastCopyFunctions(GetFastCopyFunctionsMap(id))
+{
+}
+
+}  // namespace angle