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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 #include "chromeos/display/output_util.h" | 5 #include "ui/display/chromeos/x11/display_util.h" |
| 6 | 6 |
| 7 #include <X11/extensions/Xrandr.h> | 7 #include <X11/extensions/Xrandr.h> |
| 8 #include <X11/Xatom.h> | 8 #include <X11/Xatom.h> |
| 9 #include <X11/Xlib.h> | 9 #include <X11/Xlib.h> |
| 10 | 10 |
| 11 #include "base/macros.h" |
| 11 #include "base/strings/string_util.h" | 12 #include "base/strings/string_util.h" |
| 12 #include "base/x11/edid_parser_x11.h" | 13 #include "base/x11/edid_parser_x11.h" |
| 13 | 14 |
| 14 namespace chromeos { | 15 namespace ui { |
| 16 |
| 15 namespace { | 17 namespace { |
| 16 | 18 |
| 17 // Prefixes for the built-in displays. | 19 struct OutputTypeMapping { |
| 18 const char kInternal_LVDS[] = "LVDS"; | 20 // Prefix of output name. |
| 19 const char kInternal_eDP[] = "eDP"; | 21 std::string name; |
| 20 const char kInternal_DSI[] = "DSI"; | 22 OutputType type; |
| 23 }; |
| 24 |
| 25 const OutputTypeMapping kOutputTypeMapping[] = { |
| 26 {"LVDS", OUTPUT_TYPE_INTERNAL}, |
| 27 {"eDP", OUTPUT_TYPE_INTERNAL}, |
| 28 {"DSI", OUTPUT_TYPE_INTERNAL}, |
| 29 {"VGA", OUTPUT_TYPE_VGA}, |
| 30 {"HDMI", OUTPUT_TYPE_HDMI}, |
| 31 {"DVI", OUTPUT_TYPE_DVI}, |
| 32 {"DP", OUTPUT_TYPE_DISPLAYPORT} |
| 33 }; |
| 21 | 34 |
| 22 // Gets some useful data from the specified output device, such like | 35 // Gets some useful data from the specified output device, such like |
| 23 // manufacturer's ID, product code, and human readable name. Returns false if it | 36 // manufacturer's ID, product code, and human readable name. Returns false if it |
| 24 // fails to get those data and doesn't touch manufacturer ID/product code/name. | 37 // fails to get those data and doesn't touch manufacturer ID/product code/name. |
| 25 // NULL can be passed for unwanted output parameters. | 38 // NULL can be passed for unwanted output parameters. |
| 26 bool GetOutputDeviceData(XID output, | 39 bool GetOutputDeviceData(XID output, |
| 27 uint16* manufacturer_id, | 40 uint16* manufacturer_id, |
| 28 std::string* human_readable_name) { | 41 std::string* human_readable_name) { |
| 29 unsigned long nitems = 0; | 42 unsigned long nitems = 0; |
| 30 unsigned char *prop = NULL; | 43 unsigned char* prop = NULL; |
| 31 if (!base::GetEDIDProperty(output, &nitems, &prop)) | 44 if (!base::GetEDIDProperty(output, &nitems, &prop)) |
| 32 return false; | 45 return false; |
| 33 | 46 |
| 34 bool result = base::ParseOutputDeviceData( | 47 bool result = base::ParseOutputDeviceData( |
| 35 prop, nitems, manufacturer_id, human_readable_name); | 48 prop, nitems, manufacturer_id, human_readable_name); |
| 36 XFree(prop); | 49 XFree(prop); |
| 37 return result; | 50 return result; |
| 38 } | 51 } |
| 39 | 52 |
| 40 } // namespace | 53 } // namespace |
| 41 | 54 |
| 42 std::string GetDisplayName(XID output_id) { | 55 OutputType GetOutputTypeFromName(const std::string& name) { |
| 56 for (unsigned int i = 0; i < arraysize(kOutputTypeMapping); ++i) { |
| 57 if (name.find(kOutputTypeMapping[i].name) == 0) { |
| 58 return kOutputTypeMapping[i].type; |
| 59 } |
| 60 } |
| 61 |
| 62 return OUTPUT_TYPE_UNKNOWN; |
| 63 } |
| 64 |
| 65 std::string GetDisplayName(const OutputConfigurator::OutputSnapshot& output) { |
| 43 std::string display_name; | 66 std::string display_name; |
| 44 GetOutputDeviceData(output_id, NULL, &display_name); | 67 GetOutputDeviceData(output.output, NULL, &display_name); |
| 45 return display_name; | 68 return display_name; |
| 46 } | 69 } |
| 47 | 70 |
| 48 bool GetOutputOverscanFlag(XID output, bool* flag) { | 71 bool GetOutputOverscanFlag(const OutputConfigurator::OutputSnapshot& output, |
| 72 bool* flag) { |
| 49 unsigned long nitems = 0; | 73 unsigned long nitems = 0; |
| 50 unsigned char *prop = NULL; | 74 unsigned char* prop = NULL; |
| 51 if (!base::GetEDIDProperty(output, &nitems, &prop)) | 75 if (!base::GetEDIDProperty(output.output, &nitems, &prop)) |
| 52 return false; | 76 return false; |
| 53 | 77 |
| 54 bool found = ParseOutputOverscanFlag(prop, nitems, flag); | 78 bool found = ParseOutputOverscanFlag(prop, nitems, flag); |
| 55 XFree(prop); | 79 XFree(prop); |
| 56 return found; | 80 return found; |
| 57 } | 81 } |
| 58 | 82 |
| 59 bool ParseOutputOverscanFlag(const unsigned char* prop, | 83 bool ParseOutputOverscanFlag(const unsigned char* prop, |
| 60 unsigned long nitems, | 84 unsigned long nitems, |
| 61 bool *flag) { | 85 bool* flag) { |
| 62 // See http://en.wikipedia.org/wiki/Extended_display_identification_data | 86 // See http://en.wikipedia.org/wiki/Extended_display_identification_data |
| 63 // for the extension format of EDID. Also see EIA/CEA-861 spec for | 87 // for the extension format of EDID. Also see EIA/CEA-861 spec for |
| 64 // the format of the extensions and how video capability is encoded. | 88 // the format of the extensions and how video capability is encoded. |
| 65 // - byte 0: tag. should be 02h. | 89 // - byte 0: tag. should be 02h. |
| 66 // - byte 1: revision. only cares revision 3 (03h). | 90 // - byte 1: revision. only cares revision 3 (03h). |
| 67 // - byte 4-: data block. | 91 // - byte 4-: data block. |
| 68 const unsigned int kExtensionBase = 128; | 92 const unsigned int kExtensionBase = 128; |
| 69 const unsigned int kExtensionSize = 128; | 93 const unsigned int kExtensionSize = 128; |
| 70 const unsigned int kNumExtensionsOffset = 126; | 94 const unsigned int kNumExtensionsOffset = 126; |
| 71 const unsigned int kDataBlockOffset = 4; | 95 const unsigned int kDataBlockOffset = 4; |
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| 128 } else { | 152 } else { |
| 129 *flag = false; | 153 *flag = false; |
| 130 } | 154 } |
| 131 return true; | 155 return true; |
| 132 } | 156 } |
| 133 } | 157 } |
| 134 | 158 |
| 135 return false; | 159 return false; |
| 136 } | 160 } |
| 137 | 161 |
| 138 bool IsInternalOutputName(const std::string& name) { | 162 } // namespace ui |
| 139 return name.find(kInternal_LVDS) == 0 || name.find(kInternal_eDP) == 0 || | |
| 140 name.find(kInternal_DSI) == 0; | |
| 141 } | |
| 142 | |
| 143 const XRRModeInfo* FindXRRModeInfo(const XRRScreenResources* screen_resources, | |
| 144 XID current_mode) { | |
| 145 for (int m = 0; m < screen_resources->nmode; m++) { | |
| 146 XRRModeInfo *mode = &screen_resources->modes[m]; | |
| 147 if (mode->id == current_mode) | |
| 148 return mode; | |
| 149 } | |
| 150 return NULL; | |
| 151 } | |
| 152 | |
| 153 namespace test { | |
| 154 | |
| 155 XRRModeInfo CreateModeInfo(int id, | |
| 156 int width, | |
| 157 int height, | |
| 158 bool interlaced, | |
| 159 float refresh_rate) { | |
| 160 XRRModeInfo mode_info = {0}; | |
| 161 mode_info.id = id; | |
| 162 mode_info.width = width; | |
| 163 mode_info.height = height; | |
| 164 if (interlaced) | |
| 165 mode_info.modeFlags = RR_Interlace; | |
| 166 if (refresh_rate != 0.0f) { | |
| 167 mode_info.hTotal = 1; | |
| 168 mode_info.vTotal = 1; | |
| 169 mode_info.dotClock = refresh_rate; | |
| 170 } | |
| 171 return mode_info; | |
| 172 } | |
| 173 | |
| 174 } // namespace test | |
| 175 | |
| 176 } // namespace chromeos | |
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