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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_GFX_SKIA_UTIL_H_ | 5 #ifndef UI_GFX_SKIA_UTIL_H_ |
6 #define UI_GFX_SKIA_UTIL_H_ | 6 #define UI_GFX_SKIA_UTIL_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
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28 // Convert between Skia and gfx rect types. | 28 // Convert between Skia and gfx rect types. |
29 GFX_EXPORT SkRect RectToSkRect(const Rect& rect); | 29 GFX_EXPORT SkRect RectToSkRect(const Rect& rect); |
30 GFX_EXPORT SkIRect RectToSkIRect(const Rect& rect); | 30 GFX_EXPORT SkIRect RectToSkIRect(const Rect& rect); |
31 GFX_EXPORT Rect SkIRectToRect(const SkIRect& rect); | 31 GFX_EXPORT Rect SkIRectToRect(const SkIRect& rect); |
32 GFX_EXPORT SkRect RectFToSkRect(const RectF& rect); | 32 GFX_EXPORT SkRect RectFToSkRect(const RectF& rect); |
33 GFX_EXPORT RectF SkRectToRectF(const SkRect& rect); | 33 GFX_EXPORT RectF SkRectToRectF(const SkRect& rect); |
34 | 34 |
35 GFX_EXPORT void TransformToFlattenedSkMatrix(const gfx::Transform& transform, | 35 GFX_EXPORT void TransformToFlattenedSkMatrix(const gfx::Transform& transform, |
36 SkMatrix* flattened); | 36 SkMatrix* flattened); |
37 | 37 |
38 // Creates a bitmap shader for the image rep with the image rep's scale factor. | |
39 // Sets the created shader's local matrix such that it displays the image rep at | |
40 // the correct scale factor. | |
41 // The shader's local matrix should not be changed after the shader is created. | |
42 // TODO(pkotwicz): Allow shader's local matrix to be changed after the shader | |
43 // is created. | |
44 // | |
45 GFX_EXPORT skia::RefPtr<SkShader> CreateImageRepShader( | |
46 const gfx::ImageSkiaRep& image_rep, | |
47 SkShader::TileMode tile_mode, | |
48 const SkMatrix& local_matrix); | |
49 | |
50 // Creates a bitmap shader for the image rep with the passed in scale factor. | |
51 GFX_EXPORT skia::RefPtr<SkShader> CreateImageRepShaderForScale( | |
52 const gfx::ImageSkiaRep& image_rep, | |
53 SkShader::TileMode tile_mode, | |
54 const SkMatrix& local_matrix, | |
55 SkScalar scale); | |
56 | |
57 // Creates a vertical gradient shader. The caller owns the shader. | 38 // Creates a vertical gradient shader. The caller owns the shader. |
58 // Example usage to avoid leaks: | 39 // Example usage to avoid leaks: |
59 GFX_EXPORT skia::RefPtr<SkShader> CreateGradientShader(int start_point, | 40 GFX_EXPORT skia::RefPtr<SkShader> CreateGradientShader(int start_point, |
60 int end_point, | 41 int end_point, |
61 SkColor start_color, | 42 SkColor start_color, |
62 SkColor end_color); | 43 SkColor end_color); |
63 | 44 |
64 // Creates a draw looper to generate |shadows|. The caller owns the draw looper. | |
65 // NULL is returned if |shadows| is empty since no draw looper is needed in | |
66 // this case. | |
67 GFX_EXPORT skia::RefPtr<SkDrawLooper> CreateShadowDrawLooper( | |
68 const std::vector<ShadowValue>& shadows); | |
69 | |
70 // Returns true if the two bitmaps contain the same pixels. | 45 // Returns true if the two bitmaps contain the same pixels. |
71 GFX_EXPORT bool BitmapsAreEqual(const SkBitmap& bitmap1, | 46 GFX_EXPORT bool BitmapsAreEqual(const SkBitmap& bitmap1, |
72 const SkBitmap& bitmap2); | 47 const SkBitmap& bitmap2); |
73 | 48 |
74 // Converts Skia ARGB format pixels in |skia| to RGBA. | 49 // Converts Skia ARGB format pixels in |skia| to RGBA. |
75 GFX_EXPORT void ConvertSkiaToRGBA(const unsigned char* skia, | 50 GFX_EXPORT void ConvertSkiaToRGBA(const unsigned char* skia, |
76 int pixel_width, | 51 int pixel_width, |
77 unsigned char* rgba); | 52 unsigned char* rgba); |
78 | 53 |
79 } // namespace gfx | 54 } // namespace gfx |
80 | 55 |
81 #endif // UI_GFX_SKIA_UTIL_H_ | 56 #endif // UI_GFX_SKIA_UTIL_H_ |
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