1 files changed, 77 insertions, 0 deletions
diff --git a/gfx/thebes/gfxPattern.h b/gfx/thebes/gfxPattern.h
new file mode 100644
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+++ b/gfx/thebes/gfxPattern.h
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+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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/. */
+
+#ifndef GFX_PATTERN_H
+#define GFX_PATTERN_H
+
+#include "gfxTypes.h"
+
+#include "gfxMatrix.h"
+#include "mozilla/Alignment.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/PatternHelpers.h"
+#include "nsISupportsImpl.h"
+#include "nsTArray.h"
+
+typedef struct _cairo_pattern cairo_pattern_t;
+
+class gfxPattern final {
+  NS_INLINE_DECL_REFCOUNTING(gfxPattern)
+
+ public:
+  explicit gfxPattern(const mozilla::gfx::DeviceColor& aColor);
+  // gradients
+  gfxPattern(gfxFloat x0, gfxFloat y0, gfxFloat x1, gfxFloat y1);  // linear
+  gfxPattern(gfxFloat cx0, gfxFloat cy0, gfxFloat radius0, gfxFloat cx1,
+             gfxFloat cy1, gfxFloat radius1);  // radial
+  gfxPattern(gfxFloat cx, gfxFloat cy, gfxFloat angle, gfxFloat startOffset,
+             gfxFloat endOffset);  // conic
+  gfxPattern(mozilla::gfx::SourceSurface* aSurface,
+             const mozilla::gfx::Matrix& aPatternToUserSpace);
+
+  void AddColorStop(gfxFloat offset, const mozilla::gfx::DeviceColor& c);
+  void SetColorStops(mozilla::gfx::GradientStops* aStops);
+
+  // This should only be called on a cairo pattern that we want to use with
+  // Azure. We will read back the color stops from cairo and try to look
+  // them up in the cache.
+  void CacheColorStops(const mozilla::gfx::DrawTarget* aDT);
+
+  void SetMatrix(const gfxMatrix& matrix);
+  gfxMatrix GetMatrix() const;
+  gfxMatrix GetInverseMatrix() const;
+
+  /* Get an Azure Pattern for the current Cairo pattern. aPattern transform
+   * specifies the transform that was set on the DrawTarget when the pattern
+   * was set. When this is nullptr it is assumed the transform is identical
+   * to the current transform.
+   */
+  mozilla::gfx::Pattern* GetPattern(
+      const mozilla::gfx::DrawTarget* aTarget,
+      const mozilla::gfx::Matrix* aOriginalUserToDevice = nullptr);
+  bool IsOpaque();
+
+  // clamp, repeat, reflect
+  void SetExtend(mozilla::gfx::ExtendMode aExtend);
+
+  void SetSamplingFilter(mozilla::gfx::SamplingFilter aSamplingFilter);
+  mozilla::gfx::SamplingFilter SamplingFilter() const;
+
+  /* returns TRUE if it succeeded */
+  bool GetSolidColor(mozilla::gfx::DeviceColor& aColorOut);
+
+ private:
+  // Private destructor, to discourage deletion outside of Release():
+  ~gfxPattern() = default;
+
+  mozilla::gfx::GeneralPattern mGfxPattern;
+  RefPtr<mozilla::gfx::SourceSurface> mSourceSurface;
+  mozilla::gfx::Matrix mPatternToUserSpace;
+  RefPtr<mozilla::gfx::GradientStops> mStops;
+  nsTArray<mozilla::gfx::GradientStop> mStopsList;
+  mozilla::gfx::ExtendMode mExtend;
+};
+
+#endif /* GFX_PATTERN_H */