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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef SKIA_PUBLIC_INTERFACES_BITMAP_SKBITMAP_STRUCT_TRAITS_H_ |
| 6 #define SKIA_PUBLIC_INTERFACES_BITMAP_SKBITMAP_STRUCT_TRAITS_H_ |
| 7 |
| 8 #include "mojo/public/cpp/bindings/array_traits.h" |
| 9 #include "skia/public/interfaces/bitmap.mojom.h" |
| 10 #include "third_party/skia/include/core/SkBitmap.h" |
| 11 |
| 12 namespace mojo { |
| 13 |
| 14 // A buffer used to read pixel data directly from BitmapDataView to SkBitmap. |
| 15 struct BitmapBuffer { |
| 16 uint8_t* data = nullptr; |
| 17 size_t size = 0; |
| 18 }; |
| 19 |
| 20 // ArrayTraits needed for ReadPixelData use with BitmapBuffer. |
| 21 template <> |
| 22 struct ArrayTraits<BitmapBuffer> { |
| 23 using Element = uint8_t; |
| 24 static size_t GetSize(const BitmapBuffer& b); |
| 25 static uint8_t* GetData(BitmapBuffer& b); |
| 26 static const uint8_t* GetData(const BitmapBuffer& b); |
| 27 static uint8_t& GetAt(BitmapBuffer& b, size_t i); |
| 28 static const uint8_t& GetAt(const BitmapBuffer& b, size_t i); |
| 29 static void Resize(BitmapBuffer& b, size_t size); |
| 30 }; |
| 31 |
| 32 // Struct traits to use SkBitmap for skia::mojom::Bitmap in Chrome C++ code. |
| 33 template <> |
| 34 struct StructTraits<skia::mojom::Bitmap, SkBitmap> { |
| 35 static bool IsNull(const SkBitmap& b); |
| 36 static void SetToNull(SkBitmap* b); |
| 37 static skia::mojom::ColorType color_type(const SkBitmap& b); |
| 38 static skia::mojom::AlphaType alpha_type(const SkBitmap& b); |
| 39 static skia::mojom::ColorProfileType profile_type(const SkBitmap& b); |
| 40 static uint32_t width(const SkBitmap& b); |
| 41 static uint32_t height(const SkBitmap& b); |
| 42 static BitmapBuffer pixel_data(const SkBitmap& b); |
| 43 static bool Read(skia::mojom::BitmapDataView data, SkBitmap* b); |
| 44 static void* SetUpContext(const SkBitmap& b); |
| 45 static void TearDownContext(const SkBitmap& b, void* context); |
| 46 }; |
| 47 |
| 48 } // namespace mojo |
| 49 |
| 50 #endif // SKIA_PUBLIC_INTERFACES_BITMAP_SKBITMAP_STRUCT_TRAITS_H_ |
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