1 files changed, 120 insertions, 0 deletions
diff --git a/image/test/gtest/TestSwizzleFilter.cpp b/image/test/gtest/TestSwizzleFilter.cpp
new file mode 100644
index 0000000000..65faf85155
--- /dev/null
+++ b/image/test/gtest/TestSwizzleFilter.cpp
@@ -0,0 +1,120 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+
+#include "mozilla/gfx/2D.h"
+#include "Common.h"
+#include "Decoder.h"
+#include "DecoderFactory.h"
+#include "SurfaceFilters.h"
+#include "SurfacePipe.h"
+
+using namespace mozilla;
+using namespace mozilla::gfx;
+using namespace mozilla::image;
+
+template <typename Func>
+void WithSwizzleFilter(const IntSize& aSize, SurfaceFormat aInputFormat,
+                       SurfaceFormat aOutputFormat, bool aPremultiplyAlpha,
+                       Func aFunc) {
+  RefPtr<image::Decoder> decoder = CreateTrivialDecoder();
+  ASSERT_TRUE(decoder != nullptr);
+
+  WithFilterPipeline(
+      decoder, std::forward<Func>(aFunc),
+      SwizzleConfig{aInputFormat, aOutputFormat, aPremultiplyAlpha},
+      SurfaceConfig{decoder, aSize, aOutputFormat, false});
+}
+
+TEST(ImageSwizzleFilter, WritePixels_RGBA_to_BGRA)
+{
+  WithSwizzleFilter(
+      IntSize(100, 100), SurfaceFormat::R8G8B8A8, SurfaceFormat::B8G8R8A8,
+      false, [](image::Decoder* aDecoder, SurfaceFilter* aFilter) {
+        CheckTransformedWritePixels(aDecoder, aFilter, BGRAColor::Blue(),
+                                    BGRAColor::Red());
+      });
+}
+
+TEST(ImageSwizzleFilter, WritePixels_RGBA_to_Premultiplied_BGRA)
+{
+  WithSwizzleFilter(
+      IntSize(100, 100), SurfaceFormat::R8G8B8A8, SurfaceFormat::B8G8R8A8, true,
+      [](image::Decoder* aDecoder, SurfaceFilter* aFilter) {
+        CheckTransformedWritePixels(
+            aDecoder, aFilter, BGRAColor(0x26, 0x00, 0x00, 0x7F, true),
+            BGRAColor(0x00, 0x00, 0x26, 0x7F), Nothing(), Nothing(), Nothing(),
+            Nothing(), /* aFuzz */ 1);
+      });
+}
+
+TEST(ImageSwizzleFilter, WritePixels_RGBA_to_BGRX)
+{
+  WithSwizzleFilter(
+      IntSize(100, 100), SurfaceFormat::R8G8B8A8, SurfaceFormat::B8G8R8X8,
+      false, [](image::Decoder* aDecoder, SurfaceFilter* aFilter) {
+        CheckTransformedWritePixels(aDecoder, aFilter,
+                                    BGRAColor(0x26, 0x00, 0x00, 0x7F, true),
+                                    BGRAColor(0x00, 0x00, 0x26, 0xFF));
+      });
+}
+
+TEST(ImageSwizzleFilter, WritePixels_RGBA_to_Premultiplied_BGRX)
+{
+  WithSwizzleFilter(
+      IntSize(100, 100), SurfaceFormat::R8G8B8A8, SurfaceFormat::B8G8R8X8, true,
+      [](image::Decoder* aDecoder, SurfaceFilter* aFilter) {
+        CheckTransformedWritePixels(aDecoder, aFilter,
+                                    BGRAColor(0x26, 0x00, 0x00, 0x7F, true),
+                                    BGRAColor(0x00, 0x00, 0x13, 0xFF));
+      });
+}
+
+TEST(ImageSwizzleFilter, WritePixels_RGBA_to_RGBX)
+{
+  WithSwizzleFilter(
+      IntSize(100, 100), SurfaceFormat::R8G8B8A8, SurfaceFormat::R8G8B8X8,
+      false, [](image::Decoder* aDecoder, SurfaceFilter* aFilter) {
+        CheckTransformedWritePixels(aDecoder, aFilter,
+                                    BGRAColor(0x00, 0x00, 0x26, 0x7F, true),
+                                    BGRAColor(0x00, 0x00, 0x26, 0xFF));
+      });
+}
+
+TEST(ImageSwizzleFilter, WritePixels_RGBA_to_Premultiplied_RGRX)
+{
+  WithSwizzleFilter(
+      IntSize(100, 100), SurfaceFormat::R8G8B8A8, SurfaceFormat::R8G8B8X8, true,
+      [](image::Decoder* aDecoder, SurfaceFilter* aFilter) {
+        CheckTransformedWritePixels(aDecoder, aFilter,
+                                    BGRAColor(0x00, 0x00, 0x26, 0x7F, true),
+                                    BGRAColor(0x00, 0x00, 0x13, 0xFF));
+      });
+}
+
+TEST(ImageSwizzleFilter, WritePixels_BGRA_to_BGRX)
+{
+  WithSwizzleFilter(
+      IntSize(100, 100), SurfaceFormat::B8G8R8A8, SurfaceFormat::B8G8R8X8,
+      false, [](image::Decoder* aDecoder, SurfaceFilter* aFilter) {
+        CheckTransformedWritePixels(aDecoder, aFilter,
+                                    BGRAColor(0x10, 0x26, 0x00, 0x7F, true),
+                                    BGRAColor(0x10, 0x26, 0x00, 0xFF));
+      });
+}
+
+TEST(ImageSwizzleFilter, WritePixels_BGRA_to_Premultiplied_BGRA)
+{
+  WithSwizzleFilter(
+      IntSize(100, 100), SurfaceFormat::B8G8R8A8, SurfaceFormat::B8G8R8A8, true,
+      [](image::Decoder* aDecoder, SurfaceFilter* aFilter) {
+        CheckTransformedWritePixels(
+            aDecoder, aFilter, BGRAColor(0x10, 0x26, 0x00, 0x7F, true),
+            BGRAColor(0x10, 0x26, 0x00, 0x7F), Nothing(), Nothing(), Nothing(),
+            Nothing(), /* aFuzz */ 1);
+      });
+}