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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 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 CC_RESOURCES_PLATFORM_COLOR_H_ | 5 #ifndef CC_RESOURCES_PLATFORM_COLOR_H_ |
6 #define CC_RESOURCES_PLATFORM_COLOR_H_ | 6 #define CC_RESOURCES_PLATFORM_COLOR_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "cc/resources/resource_format.h" | 10 #include "cc/resources/resource_format.h" |
11 #include "third_party/skia/include/core/SkTypes.h" | 11 #include "third_party/skia/include/core/SkTypes.h" |
12 | 12 |
13 namespace cc { | 13 namespace cc { |
14 | 14 |
15 class PlatformColor { | 15 class PlatformColor { |
16 public: | 16 public: |
17 enum SourceDataFormat { | 17 enum SourceDataFormat { |
18 SOURCE_FORMAT_RGBA8, | 18 SOURCE_FORMAT_RGBA8, |
19 SOURCE_FORMAT_BGRA8 | 19 SOURCE_FORMAT_BGRA8 |
20 }; | 20 }; |
21 | 21 |
22 static SourceDataFormat Format() { | 22 static SourceDataFormat Format() { |
23 return SK_B32_SHIFT ? SOURCE_FORMAT_RGBA8 : SOURCE_FORMAT_BGRA8; | 23 return SK_B32_SHIFT ? SOURCE_FORMAT_RGBA8 : SOURCE_FORMAT_BGRA8; |
24 } | 24 } |
25 | 25 |
26 // Returns the most efficient texture format for this platform. | 26 // Returns the most efficient texture format for this platform. |
27 static ResourceFormat BestTextureFormat() { | 27 static ResourceFormat BestTextureFormat(bool supports_bgra8888) { |
28 switch (Format()) { | |
29 case SOURCE_FORMAT_BGRA8: | |
30 return BGRA_8888; | |
31 case SOURCE_FORMAT_RGBA8: | |
32 return RGBA_8888; | |
33 } | |
34 NOTREACHED(); | |
35 return RGBA_8888; | |
36 } | |
37 | |
38 // Returns the most efficient supported texture format for this platform. | |
39 static ResourceFormat BestSupportedTextureFormat(bool supports_bgra8888) { | |
40 switch (Format()) { | 28 switch (Format()) { |
41 case SOURCE_FORMAT_BGRA8: | 29 case SOURCE_FORMAT_BGRA8: |
42 return (supports_bgra8888) ? BGRA_8888 : RGBA_8888; | 30 return (supports_bgra8888) ? BGRA_8888 : RGBA_8888; |
43 case SOURCE_FORMAT_RGBA8: | 31 case SOURCE_FORMAT_RGBA8: |
44 return RGBA_8888; | 32 return RGBA_8888; |
45 } | 33 } |
46 NOTREACHED(); | 34 NOTREACHED(); |
47 return RGBA_8888; | 35 return RGBA_8888; |
48 } | 36 } |
49 | 37 |
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60 return false; | 48 return false; |
61 } | 49 } |
62 | 50 |
63 private: | 51 private: |
64 DISALLOW_IMPLICIT_CONSTRUCTORS(PlatformColor); | 52 DISALLOW_IMPLICIT_CONSTRUCTORS(PlatformColor); |
65 }; | 53 }; |
66 | 54 |
67 } // namespace cc | 55 } // namespace cc |
68 | 56 |
69 #endif // CC_RESOURCES_PLATFORM_COLOR_H_ | 57 #endif // CC_RESOURCES_PLATFORM_COLOR_H_ |
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