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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 CHROMEOS_DISPLAY_OUTPUT_UTIL_H_ | 5 #ifndef CHROMEOS_DISPLAY_OUTPUT_UTIL_H_ |
6 #define CHROMEOS_DISPLAY_OUTPUT_UTIL_H_ | 6 #define CHROMEOS_DISPLAY_OUTPUT_UTIL_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "chromeos/chromeos_export.h" | 11 #include "chromeos/chromeos_export.h" |
12 | 12 |
13 // Forward declarations for Xlib and Xrandr. | 13 // Forward declarations for Xlib and Xrandr. |
14 // This is so unused X definitions don't pollute the namespace. | 14 // This is so unused X definitions don't pollute the namespace. |
15 typedef unsigned long XID; | 15 typedef unsigned long XID; |
16 typedef XID RRMode; | 16 typedef XID RRMode; |
17 struct _XRRModeInfo; | 17 struct _XRRModeInfo; |
18 typedef _XRRModeInfo XRRModeInfo; | 18 typedef _XRRModeInfo XRRModeInfo; |
19 struct _XRRScreenResources; | 19 struct _XRRScreenResources; |
20 typedef _XRRScreenResources XRRScreenResources; | 20 typedef _XRRScreenResources XRRScreenResources; |
21 struct _XRROutputInfo; | 21 struct _XRROutputInfo; |
22 typedef _XRROutputInfo XRROutputInfo; | 22 typedef _XRROutputInfo XRROutputInfo; |
23 | 23 |
24 namespace chromeos { | 24 namespace chromeos { |
25 | 25 |
| 26 // Gets the EDID data from |output| and generates the display id through |
| 27 // |GetDisplayIdFromEDID|. |
| 28 CHROMEOS_EXPORT bool GetDisplayId(XID output, size_t index, |
| 29 int64* display_id_out); |
| 30 |
| 31 // Generates the display id for the pair of |prop| with |nitems| length and |
| 32 // |index|, and store in |display_id_out|. Returns true if the display id is |
| 33 // successfully generated, or false otherwise. |
| 34 CHROMEOS_EXPORT bool GetDisplayIdFromEDID(const unsigned char* prop, |
| 35 unsigned long nitems, |
| 36 size_t index, |
| 37 int64* display_id_out); |
| 38 |
26 // Generates the human readable string from EDID obtained for |output|. | 39 // Generates the human readable string from EDID obtained for |output|. |
27 CHROMEOS_EXPORT std::string GetDisplayName(XID output); | 40 CHROMEOS_EXPORT std::string GetDisplayName(XID output); |
28 | 41 |
29 // Gets the overscan flag from |output| and stores to |flag|. Returns true if | 42 // Gets the overscan flag from |output| and stores to |flag|. Returns true if |
30 // the flag is found. Otherwise returns false and doesn't touch |flag|. The | 43 // the flag is found. Otherwise returns false and doesn't touch |flag|. The |
31 // output will produce overscan if |flag| is set to true, but the output may | 44 // output will produce overscan if |flag| is set to true, but the output may |
32 // still produce overscan even though it returns true and |flag| is set to | 45 // still produce overscan even though it returns true and |flag| is set to |
33 // false. | 46 // false. |
34 CHROMEOS_EXPORT bool GetOutputOverscanFlag(XID output, bool* flag); | 47 CHROMEOS_EXPORT bool GetOutputOverscanFlag(XID output, bool* flag); |
35 | 48 |
| 49 // Parses |prop| as EDID data and stores extracted data into |manufacturer_id| |
| 50 // and |human_readable_name| and returns true. NULL can be passed for unwanted |
| 51 // output parameters. Some devices (especially internal displays) may not have |
| 52 // the field for |human_readable_name|, and it will return true in that case. |
| 53 CHROMEOS_EXPORT bool ParseOutputDeviceData(const unsigned char* prop, |
| 54 unsigned long nitems, |
| 55 uint16* manufacturer_id, |
| 56 std::string* human_readable_name); |
| 57 |
36 // Parses |prop| as EDID data and stores the overscan flag to |flag|. Returns | 58 // Parses |prop| as EDID data and stores the overscan flag to |flag|. Returns |
37 // true if the flag is found. This is exported for x11_util_unittest.cc. | 59 // true if the flag is found. This is exported for x11_util_unittest.cc. |
38 CHROMEOS_EXPORT bool ParseOutputOverscanFlag(const unsigned char* prop, | 60 CHROMEOS_EXPORT bool ParseOutputOverscanFlag(const unsigned char* prop, |
39 unsigned long nitems, | 61 unsigned long nitems, |
40 bool* flag); | 62 bool* flag); |
41 | 63 |
42 // Returns true if an output named |name| is an internal display. | 64 // Returns true if an output named |name| is an internal display. |
43 CHROMEOS_EXPORT bool IsInternalOutputName(const std::string& name); | 65 CHROMEOS_EXPORT bool IsInternalOutputName(const std::string& name); |
44 | 66 |
45 // Find a XRRModeInfo that matches |mode|. | 67 // Find a XRRModeInfo that matches |mode|. |
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64 int width, | 86 int width, |
65 int height, | 87 int height, |
66 bool interlaced, | 88 bool interlaced, |
67 float refresh_rate); | 89 float refresh_rate); |
68 | 90 |
69 } // namespace test | 91 } // namespace test |
70 | 92 |
71 } // namespace chromeos | 93 } // namespace chromeos |
72 | 94 |
73 #endif // CHROMEOS_DISPLAY_OUTPUT_UTIL_H_ | 95 #endif // CHROMEOS_DISPLAY_OUTPUT_UTIL_H_ |
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