1 /*
2  * Copyright (C) 2007 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 #include <ui/PixelFormat.h>
18 #include <hardware/hardware.h>
19 
20 // ----------------------------------------------------------------------------
21 namespace android {
22 // ----------------------------------------------------------------------------
23 
bytesPerPixel(PixelFormat format)24 ssize_t bytesPerPixel(PixelFormat format) {
25     switch (format) {
26         case PIXEL_FORMAT_RGBA_8888:
27         case PIXEL_FORMAT_RGBX_8888:
28         case PIXEL_FORMAT_BGRA_8888:
29         case PIXEL_FORMAT_sRGB_A_8888:
30         case PIXEL_FORMAT_sRGB_X_8888:
31             return 4;
32         case PIXEL_FORMAT_RGB_888:
33             return 3;
34         case PIXEL_FORMAT_RGB_565:
35         case PIXEL_FORMAT_RGBA_5551:
36         case PIXEL_FORMAT_RGBA_4444:
37             return 2;
38     }
39     return BAD_VALUE;
40 }
41 
bitsPerPixel(PixelFormat format)42 ssize_t bitsPerPixel(PixelFormat format) {
43     switch (format) {
44         case PIXEL_FORMAT_RGBA_8888:
45         case PIXEL_FORMAT_RGBX_8888:
46         case PIXEL_FORMAT_BGRA_8888:
47             return 32;
48         case PIXEL_FORMAT_RGB_888:
49             return 24;
50         case PIXEL_FORMAT_RGB_565:
51         case PIXEL_FORMAT_RGBA_5551:
52         case PIXEL_FORMAT_RGBA_4444:
53             return 16;
54     }
55     return BAD_VALUE;
56 }
57 
58 // ----------------------------------------------------------------------------
59 }; // namespace android
60 // ----------------------------------------------------------------------------
61 
62