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1 /*
2  * Copyright (C) 2005 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 //
18 
19 // Pixel formats used across the system.
20 // These formats might not all be supported by all renderers, for instance
21 // skia or SurfaceFlinger are not required to support all of these formats
22 // (either as source or destination)
23 
24 
25 #ifndef UI_PIXELFORMAT_H
26 #define UI_PIXELFORMAT_H
27 
28 #include <hardware/hardware.h>
29 
30 namespace android {
31 
32 enum {
33     //
34     // these constants need to match those
35     // in graphics/PixelFormat.java & pixelflinger/format.h
36     //
37     PIXEL_FORMAT_UNKNOWN    =   0,
38     PIXEL_FORMAT_NONE       =   0,
39 
40     // logical pixel formats used by the SurfaceFlinger -----------------------
41     PIXEL_FORMAT_CUSTOM         = -4,
42         // Custom pixel-format described by a PixelFormatInfo structure
43 
44     PIXEL_FORMAT_TRANSLUCENT    = -3,
45         // System chooses a format that supports translucency (many alpha bits)
46 
47     PIXEL_FORMAT_TRANSPARENT    = -2,
48         // System chooses a format that supports transparency
49         // (at least 1 alpha bit)
50 
51     PIXEL_FORMAT_OPAQUE         = -1,
52         // System chooses an opaque format (no alpha bits required)
53 
54     // real pixel formats supported for rendering -----------------------------
55 
56     PIXEL_FORMAT_RGBA_8888    = HAL_PIXEL_FORMAT_RGBA_8888,    // 4x8-bit RGBA
57     PIXEL_FORMAT_RGBX_8888    = HAL_PIXEL_FORMAT_RGBX_8888,    // 4x8-bit RGB0
58     PIXEL_FORMAT_RGB_888      = HAL_PIXEL_FORMAT_RGB_888,      // 3x8-bit RGB
59     PIXEL_FORMAT_RGB_565      = HAL_PIXEL_FORMAT_RGB_565,      // 16-bit RGB
60     PIXEL_FORMAT_BGRA_8888    = HAL_PIXEL_FORMAT_BGRA_8888,    // 4x8-bit BGRA
61     PIXEL_FORMAT_RGBA_5551    = 6,                             // 16-bit ARGB
62     PIXEL_FORMAT_RGBA_4444    = 7,                             // 16-bit ARGB
63     PIXEL_FORMAT_RGBA_FP16    = HAL_PIXEL_FORMAT_RGBA_FP16,    // 64-bit RGBA
64     PIXEL_FORMAT_RGBA_1010102 = HAL_PIXEL_FORMAT_RGBA_1010102, // 32-bit RGBA
65 };
66 
67 typedef int32_t PixelFormat;
68 
69 uint32_t bytesPerPixel(PixelFormat format);
70 uint32_t bitsPerPixel(PixelFormat format);
71 
72 }; // namespace android
73 
74 #endif // UI_PIXELFORMAT_H
75