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
3 // found in the LICENSE file.
5 #include "ui/ozone/platform/dri/chromeos/display_snapshot_dri.h"
9 #include <xf86drmMode.h>
11 #include "base/format_macros.h"
12 #include "base/logging.h"
13 #include "base/strings/stringprintf.h"
14 #include "ui/display/util/edid_parser.h"
15 #include "ui/ozone/platform/dri/chromeos/display_mode_dri.h"
16 #include "ui/ozone/platform/dri/dri_util.h"
17 #include "ui/ozone/platform/dri/dri_wrapper.h"
23 DisplayConnectionType GetDisplayType(drmModeConnector* connector) {
24 switch (connector->connector_type) {
25 case DRM_MODE_CONNECTOR_VGA:
26 return DISPLAY_CONNECTION_TYPE_VGA;
27 case DRM_MODE_CONNECTOR_DVII:
28 case DRM_MODE_CONNECTOR_DVID:
29 case DRM_MODE_CONNECTOR_DVIA:
30 return DISPLAY_CONNECTION_TYPE_DVI;
31 case DRM_MODE_CONNECTOR_LVDS:
32 case DRM_MODE_CONNECTOR_eDP:
33 return DISPLAY_CONNECTION_TYPE_INTERNAL;
34 case DRM_MODE_CONNECTOR_DisplayPort:
35 return DISPLAY_CONNECTION_TYPE_DISPLAYPORT;
36 case DRM_MODE_CONNECTOR_HDMIA:
37 case DRM_MODE_CONNECTOR_HDMIB:
38 return DISPLAY_CONNECTION_TYPE_HDMI;
40 return DISPLAY_CONNECTION_TYPE_UNKNOWN;
44 bool IsAspectPreserving(DriWrapper* drm, drmModeConnector* connector) {
45 drmModePropertyRes* property = drm->GetProperty(connector, "scaling mode");
47 for (int j = 0; j < property->count_enums; ++j) {
48 if (property->enums[j].value ==
49 connector->prop_values[property->prop_id] &&
50 strcmp(property->enums[j].name, "Full aspect") == 0) {
51 drm->FreeProperty(property);
56 drm->FreeProperty(property);
64 DisplaySnapshotDri::DisplaySnapshotDri(
66 drmModeConnector* connector,
69 : DisplaySnapshot(index,
71 gfx::Point(crtc->x, crtc->y),
72 gfx::Size(connector->mmWidth, connector->mmHeight),
73 GetDisplayType(connector),
74 IsAspectPreserving(drm, connector),
77 std::vector<const DisplayMode*>(),
80 connector_(connector->connector_id),
82 dpms_property_(drm->GetProperty(connector, "DPMS")) {
83 drmModePropertyBlobRes* edid_blob = drm->GetPropertyBlob(connector, "EDID");
86 std::vector<uint8_t> edid(
87 static_cast<uint8_t*>(edid_blob->data),
88 static_cast<uint8_t*>(edid_blob->data) + edid_blob->length);
90 has_proper_display_id_ = GetDisplayIdFromEDID(edid, index, &display_id_);
91 ParseOutputDeviceData(edid, NULL, &display_name_);
92 ParseOutputOverscanFlag(edid, &overscan_flag_);
94 drm->FreePropertyBlob(edid_blob);
96 VLOG(1) << "Failed to get EDID blob for connector "
97 << connector->connector_id;
100 for (int i = 0; i < connector->count_modes; ++i) {
101 drmModeModeInfo& mode = connector->modes[i];
102 modes_.push_back(new DisplayModeDri(mode));
104 if (crtc->mode_valid && SameMode(crtc->mode, mode))
105 current_mode_ = modes_.back();
107 if (mode.type & DRM_MODE_TYPE_PREFERRED)
108 native_mode_ = modes_.back();
112 DisplaySnapshotDri::~DisplaySnapshotDri() {
114 drmModeFreeProperty(dpms_property_);
117 std::string DisplaySnapshotDri::ToString() const {
118 return base::StringPrintf(
119 "[type=%d, connector=%" PRIu32 ", crtc=%" PRIu32 ", mode=%s, dim=%s]",
123 current_mode_ ? current_mode_->ToString().c_str() : "NULL",
124 physical_size_.ToString().c_str());